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wine/dlls/comctl32/treeview.c
Michael Stefaniuc 025c0b716b Prepare dlls/{comctl32,gdi,msvideo,setupapi,shell32,twain,winmm} for 
the conversion of HWND to a void*.
2002-09-06 19:41:17 +00:00

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/* Treeview control
*
* Copyright 1998 Eric Kohl <ekohl@abo.rhein-zeitung.de>
* Copyright 1998,1999 Alex Priem <alexp@sci.kun.nl>
* Copyright 1999 Sylvain St-Germain
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Note that TREEVIEW_INFO * and HTREEITEM are the same thing.
*
* Note2: All items always! have valid (allocated) pszText field.
* If item's text == LPSTR_TEXTCALLBACKA we allocate buffer
* of size TEXT_CALLBACK_SIZE in DoSetItem.
* We use callbackMask to keep track of fields to be updated.
*
* TODO:
* missing notifications: NM_SETCURSOR, TVN_GETINFOTIP, TVN_KEYDOWN,
* TVN_SETDISPINFO, TVN_SINGLEEXPAND
*
* missing styles: TVS_FULLROWSELECT, TVS_INFOTIP, TVS_NOSCROLL,
* TVS_RTLREADING, TVS_TRACKSELECT
*
* missing item styles: TVIS_CUT, TVIS_EXPANDPARTIAL
*
* Make the insertion mark look right.
* Scroll (instead of repaint) as much as possible.
*/
#include <assert.h>
#include <ctype.h>
#include <string.h>
#include <limits.h>
#include <stdlib.h>
#include "winbase.h"
#include "wingdi.h"
#include "commctrl.h"
#include "comctl32.h"
#include "wine/debug.h"
/* internal structures */
typedef struct _TREEITEM /* HTREEITEM is a _TREEINFO *. */
{
UINT callbackMask;
UINT state;
UINT stateMask;
LPSTR pszText;
int cchTextMax;
int iImage;
int iSelectedImage;
int cChildren;
LPARAM lParam;
int iIntegral; /* item height multiplier (1 is normal) */
int iLevel; /* indentation level:0=root level */
HTREEITEM parent; /* handle to parent or 0 if at root */
HTREEITEM firstChild; /* handle to first child or 0 if no child */
HTREEITEM lastChild;
HTREEITEM prevSibling; /* handle to prev item in list, 0 if first */
HTREEITEM nextSibling; /* handle to next item in list, 0 if last */
RECT rect;
LONG linesOffset;
LONG stateOffset;
LONG imageOffset;
LONG textOffset;
LONG textWidth; /* horizontal text extent for pszText */
LONG visibleOrder; /* visible ordering, 0 is first visible item */
} TREEVIEW_ITEM;
typedef struct tagTREEVIEW_INFO
{
HWND hwnd;
HWND hwndNotify; /* Owner window to send notifications to */
DWORD dwStyle;
HTREEITEM root;
UINT uInternalStatus;
INT Timer;
UINT uNumItems; /* number of valid TREEVIEW_ITEMs */
INT cdmode; /* last custom draw setting */
UINT uScrollTime; /* max. time for scrolling in milliseconds */
BOOL bRedraw; /* if FALSE we validate but don't redraw in TREEVIEW_Paint() */
UINT uItemHeight; /* item height */
BOOL bHeightSet;
LONG clientWidth; /* width of control window */
LONG clientHeight; /* height of control window */
LONG treeWidth; /* width of visible tree items */
LONG treeHeight; /* height of visible tree items */
UINT uIndent; /* indentation in pixels */
HTREEITEM selectedItem; /* handle to selected item or 0 if none */
HTREEITEM hotItem; /* handle currently under cursor, 0 if none */
HTREEITEM focusedItem; /* item that was under the cursor when WM_LBUTTONDOWN was received */
HTREEITEM firstVisible; /* handle to first visible item */
LONG maxVisibleOrder;
HTREEITEM dropItem; /* handle to item selected by drag cursor */
HTREEITEM insertMarkItem; /* item after which insertion mark is placed */
BOOL insertBeforeorAfter; /* flag used by TVM_SETINSERTMARK */
HIMAGELIST dragList; /* Bitmap of dragged item */
LONG scrollX;
COLORREF clrBk;
COLORREF clrText;
COLORREF clrLine;
COLORREF clrInsertMark;
HFONT hFont;
HFONT hBoldFont;
HWND hwndToolTip;
HWND hwndEdit;
WNDPROC wpEditOrig; /* orig window proc for subclassing edit */
BOOL bIgnoreEditKillFocus;
BOOL bLabelChanged;
BOOL bNtfUnicode; /* TRUE if should send NOTIFY with W */
BOOL bUnicode; /* set by CCM_SETUNICODEFORMAT */
HIMAGELIST himlNormal;
int normalImageHeight;
int normalImageWidth;
HIMAGELIST himlState;
int stateImageHeight;
int stateImageWidth;
HDPA items;
DWORD lastKeyPressTimestamp; /* Added */
WPARAM charCode; /* Added */
INT nSearchParamLength; /* Added */
CHAR szSearchParam[ MAX_PATH ]; /* Added */
} TREEVIEW_INFO;
/******** Defines that TREEVIEW_ProcessLetterKeys uses ****************/
#define KEY_DELAY 450
/* bitflags for infoPtr->uInternalStatus */
#define TV_HSCROLL 0x01 /* treeview too large to fit in window */
#define TV_VSCROLL 0x02 /* (horizontal/vertical) */
#define TV_LDRAG 0x04 /* Lbutton pushed to start drag */
#define TV_LDRAGGING 0x08 /* Lbutton pushed, mouse moved. */
#define TV_RDRAG 0x10 /* dito Rbutton */
#define TV_RDRAGGING 0x20
/* bitflags for infoPtr->timer */
#define TV_EDIT_TIMER 2
#define TV_EDIT_TIMER_SET 2
VOID TREEVIEW_Register (VOID);
VOID TREEVIEW_Unregister (VOID);
WINE_DEFAULT_DEBUG_CHANNEL(treeview);
#define TEXT_CALLBACK_SIZE 260
#define TREEVIEW_LEFT_MARGIN 8
#define MINIMUM_INDENT 19
#define CALLBACK_MASK_ALL (TVIF_TEXT|TVIF_CHILDREN|TVIF_IMAGE|TVIF_SELECTEDIMAGE)
#define STATEIMAGEINDEX(x) (((x) >> 12) & 0x0f)
#define OVERLAYIMAGEINDEX(x) (((x) >> 8) & 0x0f)
#define ISVISIBLE(x) ((x)->visibleOrder >= 0)
typedef VOID (*TREEVIEW_ItemEnumFunc)(TREEVIEW_INFO *, TREEVIEW_ITEM *,LPVOID);
static VOID TREEVIEW_Invalidate(TREEVIEW_INFO *, TREEVIEW_ITEM *);
static LRESULT TREEVIEW_DoSelectItem(TREEVIEW_INFO *, INT, HTREEITEM, INT);
static VOID TREEVIEW_SetFirstVisible(TREEVIEW_INFO *, TREEVIEW_ITEM *, BOOL);
static LRESULT TREEVIEW_EnsureVisible(TREEVIEW_INFO *, HTREEITEM, BOOL);
static LRESULT TREEVIEW_RButtonUp(TREEVIEW_INFO *, LPPOINT);
static LRESULT TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel);
static VOID TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr);
static LRESULT TREEVIEW_HScroll(TREEVIEW_INFO *, WPARAM);
static LRESULT TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam);
/* Random Utilities *****************************************************/
#ifndef NDEBUG
static inline void
TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
{
(void)infoPtr;
}
#else
/* The definition is at the end of the file. */
static void TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr);
#endif
/* Returns the treeview private data if hwnd is a treeview.
* Otherwise returns an undefined value. */
static TREEVIEW_INFO *
TREEVIEW_GetInfoPtr(HWND hwnd)
{
return (TREEVIEW_INFO *)GetWindowLongA(hwnd, 0);
}
/* Don't call this. Nothing wants an item index. */
static inline int
TREEVIEW_GetItemIndex(TREEVIEW_INFO *infoPtr, HTREEITEM handle)
{
assert(infoPtr != NULL);
return DPA_GetPtrIndex(infoPtr->items, handle);
}
/***************************************************************************
* This method checks that handle is an item for this tree.
*/
static BOOL
TREEVIEW_ValidItem(TREEVIEW_INFO *infoPtr, HTREEITEM handle)
{
if (TREEVIEW_GetItemIndex(infoPtr, handle) == -1)
{
TRACE("invalid item %p\n", handle);
return FALSE;
}
else
return TRUE;
}
static HFONT
TREEVIEW_CreateBoldFont(HFONT hOrigFont)
{
LOGFONTA font;
GetObjectA(hOrigFont, sizeof(font), &font);
font.lfWeight = FW_BOLD;
return CreateFontIndirectA(&font);
}
static inline HFONT
TREEVIEW_FontForItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
return (item->state & TVIS_BOLD) ? infoPtr->hBoldFont : infoPtr->hFont;
}
/* for trace/debugging purposes only */
static const char *
TREEVIEW_ItemName(TREEVIEW_ITEM *item)
{
if (item == NULL) return "<null item>";
if (item->pszText == LPSTR_TEXTCALLBACKA) return "<callback>";
if (item->pszText == NULL) return "<null>";
return item->pszText;
}
/* An item is not a child of itself. */
static BOOL
TREEVIEW_IsChildOf(TREEVIEW_ITEM *parent, TREEVIEW_ITEM *child)
{
do
{
child = child->parent;
if (child == parent) return TRUE;
} while (child != NULL);
return FALSE;
}
/* Tree Traversal *******************************************************/
/***************************************************************************
* This method returns the last expanded sibling or child child item
* of a tree node
*/
static TREEVIEW_ITEM *
TREEVIEW_GetLastListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
{
if (!wineItem)
return NULL;
while (wineItem->lastChild)
{
if (wineItem->state & TVIS_EXPANDED)
wineItem = wineItem->lastChild;
else
break;
}
if (wineItem == infoPtr->root)
return NULL;
return wineItem;
}
/***************************************************************************
* This method returns the previous non-hidden item in the list not
* considering the tree hierarchy.
*/
static TREEVIEW_ITEM *
TREEVIEW_GetPrevListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *tvItem)
{
if (tvItem->prevSibling)
{
/* This item has a prevSibling, get the last item in the sibling's tree. */
TREEVIEW_ITEM *upItem = tvItem->prevSibling;
if ((upItem->state & TVIS_EXPANDED) && upItem->lastChild != NULL)
return TREEVIEW_GetLastListItem(infoPtr, upItem->lastChild);
else
return upItem;
}
else
{
/* this item does not have a prevSibling, get the parent */
return (tvItem->parent != infoPtr->root) ? tvItem->parent : NULL;
}
}
/***************************************************************************
* This method returns the next physical item in the treeview not
* considering the tree hierarchy.
*/
static TREEVIEW_ITEM *
TREEVIEW_GetNextListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *tvItem)
{
assert(tvItem != NULL);
/*
* If this item has children and is expanded, return the first child
*/
if ((tvItem->state & TVIS_EXPANDED) && tvItem->firstChild != NULL)
{
return tvItem->firstChild;
}
/*
* try to get the sibling
*/
if (tvItem->nextSibling)
return tvItem->nextSibling;
/*
* Otherwise, get the parent's sibling.
*/
while (tvItem->parent)
{
tvItem = tvItem->parent;
if (tvItem->nextSibling)
return tvItem->nextSibling;
}
return NULL;
}
/***************************************************************************
* This method returns the nth item starting at the given item. It returns
* the last item (or first) we we run out of items.
*
* Will scroll backward if count is <0.
* forward if count is >0.
*/
static TREEVIEW_ITEM *
TREEVIEW_GetListItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
LONG count)
{
TREEVIEW_ITEM *(*next_item)(TREEVIEW_INFO *, TREEVIEW_ITEM *);
TREEVIEW_ITEM *previousItem;
assert(wineItem != NULL);
if (count > 0)
{
next_item = TREEVIEW_GetNextListItem;
}
else if (count < 0)
{
count = -count;
next_item = TREEVIEW_GetPrevListItem;
}
else
return wineItem;
do
{
previousItem = wineItem;
wineItem = next_item(infoPtr, wineItem);
} while (--count && wineItem != NULL);
return wineItem ? wineItem : previousItem;
}
/* Notifications ************************************************************/
static LRESULT
TREEVIEW_SendRealNotify(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
if (infoPtr->bNtfUnicode)
return (BOOL)SendMessageW(infoPtr->hwndNotify, WM_NOTIFY,
wParam, lParam);
else
return (BOOL)SendMessageA(infoPtr->hwndNotify, WM_NOTIFY,
wParam, lParam);
}
static BOOL
TREEVIEW_SendSimpleNotify(TREEVIEW_INFO *infoPtr, UINT code)
{
NMHDR nmhdr;
HWND hwnd = infoPtr->hwnd;
TRACE("%x\n", code);
nmhdr.hwndFrom = hwnd;
nmhdr.idFrom = GetWindowLongA(hwnd, GWL_ID);
nmhdr.code = code;
return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
(WPARAM)nmhdr.idFrom, (LPARAM)&nmhdr);
}
static VOID
TREEVIEW_TVItemFromItem(TREEVIEW_INFO *infoPtr, UINT mask, TVITEMA *tvItem, TREEVIEW_ITEM *item)
{
tvItem->mask = mask;
tvItem->hItem = item;
tvItem->state = item->state;
tvItem->stateMask = 0;
tvItem->iImage = item->iImage;
tvItem->cchTextMax = item->cchTextMax;
tvItem->iImage = item->iImage;
tvItem->iSelectedImage = item->iSelectedImage;
tvItem->cChildren = item->cChildren;
tvItem->lParam = item->lParam;
/* **** **** **** **** WARNING **** **** **** **** */
/* This control stores all the data in A format */
/* we will convert it to W if the notify format */
/* is Unicode. */
/* **** **** **** **** WARNING **** **** **** **** */
if (infoPtr->bNtfUnicode) {
INT len = MultiByteToWideChar( CP_ACP, 0, item->pszText, -1, NULL, 0 );
if (len > 1) {
tvItem->pszText = (LPSTR)COMCTL32_Alloc (len*sizeof(WCHAR));
MultiByteToWideChar( CP_ACP, 0, item->pszText, -1, (LPWSTR)tvItem->pszText, len*sizeof(WCHAR) );
}
}
else
tvItem->pszText = item->pszText;
}
static BOOL
TREEVIEW_SendTreeviewNotify(TREEVIEW_INFO *infoPtr, UINT code, UINT action,
UINT mask, HTREEITEM oldItem, HTREEITEM newItem)
{
HWND hwnd = infoPtr->hwnd;
NMTREEVIEWA nmhdr;
BOOL ret;
TRACE("code:%x action:%x olditem:%p newitem:%p\n",
code, action, oldItem, newItem);
ZeroMemory(&nmhdr, sizeof(NMTREEVIEWA));
nmhdr.hdr.hwndFrom = hwnd;
nmhdr.hdr.idFrom = GetWindowLongA(hwnd, GWL_ID);
nmhdr.hdr.code = code;
nmhdr.action = action;
if (oldItem)
TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemOld, oldItem);
if (newItem)
TREEVIEW_TVItemFromItem(infoPtr, mask, &nmhdr.itemNew, newItem);
nmhdr.ptDrag.x = 0;
nmhdr.ptDrag.y = 0;
ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
(WPARAM)GetWindowLongA(hwnd, GWL_ID),
(LPARAM)&nmhdr);
if (infoPtr->bNtfUnicode) {
COMCTL32_Free(nmhdr.itemOld.pszText);
COMCTL32_Free(nmhdr.itemNew.pszText);
}
return ret;
}
static BOOL
TREEVIEW_SendTreeviewDnDNotify(TREEVIEW_INFO *infoPtr, UINT code,
HTREEITEM dragItem, POINT pt)
{
HWND hwnd = infoPtr->hwnd;
NMTREEVIEWA nmhdr;
TRACE("code:%x dragitem:%p\n", code, dragItem);
nmhdr.hdr.hwndFrom = hwnd;
nmhdr.hdr.idFrom = GetWindowLongA(hwnd, GWL_ID);
nmhdr.hdr.code = code;
nmhdr.action = 0;
nmhdr.itemNew.mask = TVIF_STATE | TVIF_PARAM | TVIF_HANDLE;
nmhdr.itemNew.hItem = dragItem;
nmhdr.itemNew.state = dragItem->state;
nmhdr.itemNew.lParam = dragItem->lParam;
nmhdr.ptDrag.x = pt.x;
nmhdr.ptDrag.y = pt.y;
return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
(WPARAM)GetWindowLongA(hwnd, GWL_ID),
(LPARAM)&nmhdr);
}
static BOOL
TREEVIEW_SendCustomDrawNotify(TREEVIEW_INFO *infoPtr, DWORD dwDrawStage,
HDC hdc, RECT rc)
{
HWND hwnd = infoPtr->hwnd;
NMTVCUSTOMDRAW nmcdhdr;
LPNMCUSTOMDRAW nmcd;
TRACE("drawstage:%lx hdc:%x\n", dwDrawStage, hdc);
nmcd = &nmcdhdr.nmcd;
nmcd->hdr.hwndFrom = hwnd;
nmcd->hdr.idFrom = GetWindowLongA(hwnd, GWL_ID);
nmcd->hdr.code = NM_CUSTOMDRAW;
nmcd->dwDrawStage = dwDrawStage;
nmcd->hdc = hdc;
nmcd->rc = rc;
nmcd->dwItemSpec = 0;
nmcd->uItemState = 0;
nmcd->lItemlParam = 0;
nmcdhdr.clrText = infoPtr->clrText;
nmcdhdr.clrTextBk = infoPtr->clrBk;
nmcdhdr.iLevel = 0;
return (BOOL)TREEVIEW_SendRealNotify(infoPtr,
(WPARAM)GetWindowLongA(hwnd, GWL_ID),
(LPARAM)&nmcdhdr);
}
/* FIXME: need to find out when the flags in uItemState need to be set */
static BOOL
TREEVIEW_SendCustomDrawItemNotify(TREEVIEW_INFO *infoPtr, HDC hdc,
TREEVIEW_ITEM *wineItem, UINT uItemDrawState)
{
HWND hwnd = infoPtr->hwnd;
NMTVCUSTOMDRAW nmcdhdr;
LPNMCUSTOMDRAW nmcd;
DWORD dwDrawStage, dwItemSpec;
UINT uItemState;
INT retval;
dwDrawStage = CDDS_ITEM | uItemDrawState;
dwItemSpec = (DWORD)wineItem;
uItemState = 0;
if (wineItem->state & TVIS_SELECTED)
uItemState |= CDIS_SELECTED;
if (wineItem == infoPtr->selectedItem)
uItemState |= CDIS_FOCUS;
if (wineItem == infoPtr->hotItem)
uItemState |= CDIS_HOT;
nmcd = &nmcdhdr.nmcd;
nmcd->hdr.hwndFrom = hwnd;
nmcd->hdr.idFrom = GetWindowLongA(hwnd, GWL_ID);
nmcd->hdr.code = NM_CUSTOMDRAW;
nmcd->dwDrawStage = dwDrawStage;
nmcd->hdc = hdc;
nmcd->rc = wineItem->rect;
nmcd->dwItemSpec = dwItemSpec;
nmcd->uItemState = uItemState;
nmcd->lItemlParam = wineItem->lParam;
nmcdhdr.clrText = infoPtr->clrText;
nmcdhdr.clrTextBk = infoPtr->clrBk;
nmcdhdr.iLevel = wineItem->iLevel;
TRACE("drawstage:%lx hdc:%x item:%lx, itemstate:%x, lItemlParam:%lx\n",
nmcd->dwDrawStage, nmcd->hdc, nmcd->dwItemSpec,
nmcd->uItemState, nmcd->lItemlParam);
retval = TREEVIEW_SendRealNotify(infoPtr,
(WPARAM)GetWindowLongA(hwnd, GWL_ID),
(LPARAM)&nmcdhdr);
infoPtr->clrText = nmcdhdr.clrText;
infoPtr->clrBk = nmcdhdr.clrTextBk;
return (BOOL)retval;
}
static BOOL
TREEVIEW_BeginLabelEditNotify(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *editItem)
{
HWND hwnd = infoPtr->hwnd;
LPSTR allocated = NULL;
NMTVDISPINFOA tvdi;
BOOL ret;
tvdi.hdr.hwndFrom = hwnd;
tvdi.hdr.idFrom = GetWindowLongA(hwnd, GWL_ID);
tvdi.hdr.code = TVN_BEGINLABELEDITA;
tvdi.item.mask = TVIF_HANDLE | TVIF_STATE | TVIF_PARAM | TVIF_TEXT;
tvdi.item.hItem = editItem;
tvdi.item.state = editItem->state;
tvdi.item.lParam = editItem->lParam;
if (infoPtr->bNtfUnicode) {
INT len = MultiByteToWideChar( CP_ACP, 0, editItem->pszText, -1, NULL, 0 );
if (len > 1) {
tvdi.item.pszText = allocated = (LPSTR)COMCTL32_Alloc (len*sizeof(WCHAR));
MultiByteToWideChar( CP_ACP, 0, editItem->pszText, -1, (LPWSTR)tvdi.item.pszText, len*sizeof(WCHAR) );
tvdi.item.cchTextMax = len*sizeof(WCHAR);
}
else {
tvdi.item.pszText = editItem->pszText; /* ??? */
tvdi.item.cchTextMax = editItem->cchTextMax; /* ??? */
}
}
else {
tvdi.item.pszText = editItem->pszText;
tvdi.item.cchTextMax = editItem->cchTextMax;
}
ret = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
tvdi.hdr.idFrom,
(LPARAM)&tvdi);
if (allocated)
COMCTL32_Free(allocated);
return ret;
}
static void
TREEVIEW_UpdateDispInfo(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
UINT mask)
{
NMTVDISPINFOA callback;
HWND hwnd = infoPtr->hwnd;
mask &= wineItem->callbackMask;
if (mask == 0) return;
callback.hdr.hwndFrom = hwnd;
callback.hdr.idFrom = GetWindowLongA(hwnd, GWL_ID);
callback.hdr.code = (infoPtr->bNtfUnicode) ? TVN_GETDISPINFOW :
TVN_GETDISPINFOA;
/* 'state' always contains valid value, as well as 'lParam'.
* All other parameters are uninitialized.
*/
callback.item.pszText = wineItem->pszText;
callback.item.cchTextMax = wineItem->cchTextMax;
callback.item.mask = mask;
callback.item.hItem = wineItem;
callback.item.state = wineItem->state;
callback.item.lParam = wineItem->lParam;
/* If text is changed we need to recalculate textWidth */
if (mask & TVIF_TEXT)
wineItem->textWidth = 0;
TREEVIEW_SendRealNotify(infoPtr,
(WPARAM)callback.hdr.idFrom, (LPARAM)&callback);
/* It may have changed due to a call to SetItem. */
mask &= wineItem->callbackMask;
if ((mask & TVIF_TEXT) && callback.item.pszText != wineItem->pszText)
{
/* Instead of copying text into our buffer user specified its own */
if (infoPtr->bNtfUnicode) {
LPWSTR newText;
int buflen;
int len = WideCharToMultiByte( CP_ACP, 0,
(LPWSTR)callback.item.pszText, -1,
NULL, 0, NULL, NULL );
buflen = max((len+1)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
newText = (LPWSTR)COMCTL32_ReAlloc(wineItem->pszText, buflen);
TRACE("returned wstr %s, len=%d, buflen=%d\n",
debugstr_w((LPWSTR)callback.item.pszText), len, buflen);
if (newText)
{
wineItem->pszText = (LPSTR)newText;
WideCharToMultiByte( CP_ACP, 0,
(LPWSTR)callback.item.pszText, -1,
wineItem->pszText, buflen,
NULL, NULL );
wineItem->cchTextMax = buflen;
}
/* If ReAlloc fails we have nothing to do, but keep original text */
}
else {
int len = max(lstrlenA(callback.item.pszText) + 1,
TEXT_CALLBACK_SIZE);
LPSTR newText = COMCTL32_ReAlloc(wineItem->pszText, len);
TRACE("returned str %s, len=%d\n",
debugstr_a(callback.item.pszText), len);
if (newText)
{
wineItem->pszText = newText;
strcpy(wineItem->pszText, callback.item.pszText);
wineItem->cchTextMax = len;
}
/* If ReAlloc fails we have nothing to do, but keep original text */
}
}
else if (mask & TVIF_TEXT) {
/* User put text into our buffer, that is ok unless W string */
if (infoPtr->bNtfUnicode) {
LPWSTR newText;
LPSTR oldText = NULL;
int buflen;
int len = WideCharToMultiByte( CP_ACP, 0,
(LPWSTR)callback.item.pszText, -1,
NULL, 0, NULL, NULL );
buflen = max((len+1)*sizeof(WCHAR), TEXT_CALLBACK_SIZE);
newText = (LPWSTR)COMCTL32_Alloc(buflen);
TRACE("same buffer wstr %s, len=%d, buflen=%d\n",
debugstr_w((LPWSTR)callback.item.pszText), len, buflen);
if (newText)
{
oldText = wineItem->pszText;
wineItem->pszText = (LPSTR)newText;
WideCharToMultiByte( CP_ACP, 0,
(LPWSTR)callback.item.pszText, -1,
wineItem->pszText, buflen, NULL, NULL );
wineItem->cchTextMax = buflen;
if (oldText)
COMCTL32_Free(oldText);
}
}
}
if (mask & TVIF_IMAGE)
wineItem->iImage = callback.item.iImage;
if (mask & TVIF_SELECTEDIMAGE)
wineItem->iSelectedImage = callback.item.iSelectedImage;
if (mask & TVIF_CHILDREN)
wineItem->cChildren = callback.item.cChildren;
/* These members are now permanently set. */
if (callback.item.mask & TVIF_DI_SETITEM)
wineItem->callbackMask &= ~callback.item.mask;
}
/***************************************************************************
* This function uses cChildren field to decide whether the item has
* children or not.
* Note: if this returns TRUE, the child items may not actually exist,
* they could be virtual.
*
* Just use wineItem->firstChild to check for physical children.
*/
static BOOL
TREEVIEW_HasChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
{
TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_CHILDREN);
return wineItem->cChildren > 0;
}
/* Item Position ********************************************************/
/* Compute linesOffset, stateOffset, imageOffset, textOffset of an item. */
static VOID
TREEVIEW_ComputeItemInternalMetrics(TREEVIEW_INFO *infoPtr,
TREEVIEW_ITEM *item)
{
/* Same effect, different optimisation. */
#if 0
BOOL lar = ((infoPtr->dwStyle & TVS_LINESATROOT)
&& (infoPtr->dwStyle & (TVS_HASLINES|TVS_HASBUTTONS)));
#else
BOOL lar = ((infoPtr->dwStyle
& (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
> TVS_LINESATROOT);
#endif
item->linesOffset = infoPtr->uIndent * (item->iLevel + lar - 1)
- infoPtr->scrollX;
item->stateOffset = item->linesOffset + infoPtr->uIndent;
item->imageOffset = item->stateOffset
+ (STATEIMAGEINDEX(item->state) ? infoPtr->stateImageWidth : 0);
item->textOffset = item->imageOffset + infoPtr->normalImageWidth;
}
static VOID
TREEVIEW_ComputeTextWidth(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item, HDC hDC)
{
HDC hdc;
HFONT hOldFont=0;
SIZE sz;
/* DRAW's OM docker creates items like this */
if (item->pszText == NULL)
{
item->textWidth = 0;
return;
}
if (item->textWidth != 0 && !(item->callbackMask & TVIF_TEXT))
return;
if (hDC != 0)
{
hdc = hDC;
}
else
{
hdc = GetDC(infoPtr->hwnd);
hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, item));
}
GetTextExtentPoint32A(hdc, item->pszText, strlen(item->pszText), &sz);
item->textWidth = sz.cx;
if (hDC == 0)
{
SelectObject(hdc, hOldFont);
ReleaseDC(0, hdc);
}
}
static VOID
TREEVIEW_ComputeItemRect(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
item->rect.top = infoPtr->uItemHeight *
(item->visibleOrder - infoPtr->firstVisible->visibleOrder);
item->rect.bottom = item->rect.top
+ infoPtr->uItemHeight * item->iIntegral - 1;
item->rect.left = 0;
item->rect.right = infoPtr->clientWidth;
}
/* We know that only items after start need their order updated. */
static void
TREEVIEW_RecalculateVisibleOrder(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *start)
{
TREEVIEW_ITEM *item;
int order;
if (!start)
{
start = infoPtr->root->firstChild;
order = 0;
}
else
order = start->visibleOrder;
for (item = start; item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
item->visibleOrder = order;
order += item->iIntegral;
}
infoPtr->maxVisibleOrder = order;
for (item = start; item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
TREEVIEW_ComputeItemRect(infoPtr, item);
}
}
/* Update metrics of all items in selected subtree.
* root must be expanded
*/
static VOID
TREEVIEW_UpdateSubTree(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *root)
{
TREEVIEW_ITEM *sibling;
HDC hdc;
HFONT hOldFont;
if (!root->firstChild || !(root->state & TVIS_EXPANDED))
return;
root->state &= ~TVIS_EXPANDED;
sibling = TREEVIEW_GetNextListItem(infoPtr, root);
root->state |= TVIS_EXPANDED;
hdc = GetDC(infoPtr->hwnd);
hOldFont = SelectObject(hdc, infoPtr->hFont);
for (; root != sibling;
root = TREEVIEW_GetNextListItem(infoPtr, root))
{
TREEVIEW_ComputeItemInternalMetrics(infoPtr, root);
if (root->callbackMask & TVIF_TEXT)
TREEVIEW_UpdateDispInfo(infoPtr, root, TVIF_TEXT);
if (root->textWidth == 0)
{
SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, root));
TREEVIEW_ComputeTextWidth(infoPtr, root, hdc);
}
}
SelectObject(hdc, hOldFont);
ReleaseDC(infoPtr->hwnd, hdc);
}
/* Item Allocation **********************************************************/
static TREEVIEW_ITEM *
TREEVIEW_AllocateItem(TREEVIEW_INFO *infoPtr)
{
TREEVIEW_ITEM *newItem = COMCTL32_Alloc(sizeof(TREEVIEW_ITEM));
if (!newItem)
return NULL;
if (DPA_InsertPtr(infoPtr->items, INT_MAX, newItem) == -1)
{
COMCTL32_Free(newItem);
return NULL;
}
return newItem;
}
/* Exact opposite of TREEVIEW_AllocateItem. In particular, it does not
* free item->pszText. */
static void
TREEVIEW_FreeItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
DPA_DeletePtr(infoPtr->items, DPA_GetPtrIndex(infoPtr->items, item));
COMCTL32_Free(item);
if (infoPtr->selectedItem == item)
infoPtr->selectedItem = NULL;
}
/* Item Insertion *******************************************************/
/***************************************************************************
* This method inserts newItem before sibling as a child of parent.
* sibling can be NULL, but only if parent has no children.
*/
static void
TREEVIEW_InsertBefore(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
TREEVIEW_ITEM *parent)
{
assert(newItem != NULL);
assert(parent != NULL);
if (sibling != NULL)
{
assert(sibling->parent == parent);
if (sibling->prevSibling != NULL)
sibling->prevSibling->nextSibling = newItem;
newItem->prevSibling = sibling->prevSibling;
sibling->prevSibling = newItem;
}
else
newItem->prevSibling = NULL;
newItem->nextSibling = sibling;
if (parent->firstChild == sibling)
parent->firstChild = newItem;
if (parent->lastChild == NULL)
parent->lastChild = newItem;
}
/***************************************************************************
* This method inserts newItem after sibling as a child of parent.
* sibling can be NULL, but only if parent has no children.
*/
static void
TREEVIEW_InsertAfter(TREEVIEW_ITEM *newItem, TREEVIEW_ITEM *sibling,
TREEVIEW_ITEM *parent)
{
assert(newItem != NULL);
assert(parent != NULL);
if (sibling != NULL)
{
assert(sibling->parent == parent);
if (sibling->nextSibling != NULL)
sibling->nextSibling->prevSibling = newItem;
newItem->nextSibling = sibling->nextSibling;
sibling->nextSibling = newItem;
}
else
newItem->nextSibling = NULL;
newItem->prevSibling = sibling;
if (parent->lastChild == sibling)
parent->lastChild = newItem;
if (parent->firstChild == NULL)
parent->firstChild = newItem;
}
static BOOL
TREEVIEW_DoSetItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
const TVITEMEXA *tvItem)
{
UINT callbackClear = 0;
UINT callbackSet = 0;
/* Do this first in case it fails. */
if (tvItem->mask & TVIF_TEXT)
{
wineItem->textWidth = 0; /* force width recalculation */
if (tvItem->pszText != LPSTR_TEXTCALLBACKA)
{
int len = lstrlenA(tvItem->pszText) + 1;
LPSTR newText = COMCTL32_ReAlloc(wineItem->pszText, len);
if (newText == NULL) return FALSE;
callbackClear |= TVIF_TEXT;
wineItem->pszText = newText;
wineItem->cchTextMax = len;
lstrcpynA(wineItem->pszText, tvItem->pszText, len);
TRACE("setting text %s, item %p\n",
debugstr_a(wineItem->pszText), wineItem);
}
else
{
callbackSet |= TVIF_TEXT;
wineItem->pszText = COMCTL32_ReAlloc(wineItem->pszText,
TEXT_CALLBACK_SIZE);
wineItem->cchTextMax = TEXT_CALLBACK_SIZE;
TRACE("setting callback, item %p\n",
wineItem);
}
}
if (tvItem->mask & TVIF_CHILDREN)
{
wineItem->cChildren = tvItem->cChildren;
if (wineItem->cChildren == I_CHILDRENCALLBACK)
callbackSet |= TVIF_CHILDREN;
else
callbackClear |= TVIF_CHILDREN;
}
if (tvItem->mask & TVIF_IMAGE)
{
wineItem->iImage = tvItem->iImage;
if (wineItem->iImage == I_IMAGECALLBACK)
callbackSet |= TVIF_IMAGE;
else
callbackClear |= TVIF_IMAGE;
}
if (tvItem->mask & TVIF_SELECTEDIMAGE)
{
wineItem->iSelectedImage = tvItem->iSelectedImage;
if (wineItem->iSelectedImage == I_IMAGECALLBACK)
callbackSet |= TVIF_SELECTEDIMAGE;
else
callbackClear |= TVIF_SELECTEDIMAGE;
}
if (tvItem->mask & TVIF_PARAM)
wineItem->lParam = tvItem->lParam;
/* If the application sets TVIF_INTEGRAL without
* supplying a TVITEMEX structure, it's toast. */
if (tvItem->mask & TVIF_INTEGRAL)
wineItem->iIntegral = tvItem->iIntegral;
if (tvItem->mask & TVIF_STATE)
{
TRACE("prevstate,state,mask:%x,%x,%x\n", wineItem->state, tvItem->state,
tvItem->stateMask);
wineItem->state &= ~tvItem->stateMask;
wineItem->state |= (tvItem->state & tvItem->stateMask);
}
wineItem->callbackMask |= callbackSet;
wineItem->callbackMask &= ~callbackClear;
return TRUE;
}
/* Note that the new item is pre-zeroed. */
static LRESULT
TREEVIEW_InsertItemA(TREEVIEW_INFO *infoPtr, LPARAM lParam)
{
const TVINSERTSTRUCTA *ptdi = (LPTVINSERTSTRUCTA) lParam;
const TVITEMEXA *tvItem = &ptdi->DUMMYUNIONNAME.itemex;
HTREEITEM insertAfter;
TREEVIEW_ITEM *newItem, *parentItem;
BOOL bTextUpdated = FALSE;
if (ptdi->hParent == TVI_ROOT || ptdi->hParent == 0)
{
parentItem = infoPtr->root;
}
else
{
parentItem = ptdi->hParent;
if (!TREEVIEW_ValidItem(infoPtr, parentItem))
{
WARN("invalid parent %p\n", parentItem);
return (LRESULT)(HTREEITEM)NULL;
}
}
insertAfter = ptdi->hInsertAfter;
/* Validate this now for convenience. */
switch ((DWORD)insertAfter)
{
case (DWORD)TVI_FIRST:
case (DWORD)TVI_LAST:
case (DWORD)TVI_SORT:
break;
default:
if (!TREEVIEW_ValidItem(infoPtr, insertAfter) ||
insertAfter->parent != parentItem)
{
WARN("invalid insert after %p\n", insertAfter);
insertAfter = TVI_LAST;
}
}
TRACE("parent %p position %p: '%s'\n", parentItem, insertAfter,
(tvItem->mask & TVIF_TEXT)
? ((tvItem->pszText == LPSTR_TEXTCALLBACKA) ? "<callback>"
: tvItem->pszText)
: "<no label>");
newItem = TREEVIEW_AllocateItem(infoPtr);
if (newItem == NULL)
return (LRESULT)(HTREEITEM)NULL;
newItem->parent = parentItem;
newItem->iIntegral = 1;
if (!TREEVIEW_DoSetItem(infoPtr, newItem, tvItem))
return (LRESULT)(HTREEITEM)NULL;
/* After this point, nothing can fail. (Except for TVI_SORT.) */
infoPtr->uNumItems++;
switch ((DWORD)insertAfter)
{
case (DWORD)TVI_FIRST:
TREEVIEW_InsertBefore(newItem, parentItem->firstChild, parentItem);
if (infoPtr->firstVisible == parentItem->firstChild)
TREEVIEW_SetFirstVisible(infoPtr, newItem, TRUE);
break;
case (DWORD)TVI_LAST:
TREEVIEW_InsertAfter(newItem, parentItem->lastChild, parentItem);
break;
/* hInsertAfter names a specific item we want to insert after */
default:
TREEVIEW_InsertAfter(newItem, insertAfter, insertAfter->parent);
break;
case (DWORD)TVI_SORT:
{
TREEVIEW_ITEM *aChild;
TREEVIEW_ITEM *previousChild = NULL;
BOOL bItemInserted = FALSE;
aChild = parentItem->firstChild;
bTextUpdated = TRUE;
TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
/* Iterate the parent children to see where we fit in */
while (aChild != NULL)
{
INT comp;
TREEVIEW_UpdateDispInfo(infoPtr, aChild, TVIF_TEXT);
comp = lstrcmpA(newItem->pszText, aChild->pszText);
if (comp < 0) /* we are smaller than the current one */
{
TREEVIEW_InsertBefore(newItem, aChild, parentItem);
bItemInserted = TRUE;
break;
}
else if (comp > 0) /* we are bigger than the current one */
{
previousChild = aChild;
/* This will help us to exit if there is no more sibling */
aChild = (aChild->nextSibling == 0)
? NULL
: aChild->nextSibling;
/* Look at the next item */
continue;
}
else if (comp == 0)
{
/*
* An item with this name is already existing, therefore,
* we add after the one we found
*/
TREEVIEW_InsertAfter(newItem, aChild, parentItem);
bItemInserted = TRUE;
break;
}
}
/*
* we reach the end of the child list and the item has not
* yet been inserted, therefore, insert it after the last child.
*/
if ((!bItemInserted) && (aChild == NULL))
TREEVIEW_InsertAfter(newItem, previousChild, parentItem);
break;
}
}
TRACE("new item %p; parent %p, mask %x\n", newItem,
newItem->parent, tvItem->mask);
newItem->iLevel = newItem->parent->iLevel + 1;
if (newItem->parent->cChildren == 0)
newItem->parent->cChildren = 1;
if (infoPtr->dwStyle & TVS_CHECKBOXES)
{
if (STATEIMAGEINDEX(newItem->state) == 0)
newItem->state |= INDEXTOSTATEIMAGEMASK(1);
}
if (infoPtr->firstVisible == NULL)
infoPtr->firstVisible = newItem;
TREEVIEW_VerifyTree(infoPtr);
if (parentItem == infoPtr->root ||
(ISVISIBLE(parentItem) && parentItem->state & TVIS_EXPANDED))
{
TREEVIEW_ITEM *item;
TREEVIEW_ITEM *prev = TREEVIEW_GetPrevListItem(infoPtr, newItem);
TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
TREEVIEW_ComputeItemInternalMetrics(infoPtr, newItem);
if (!bTextUpdated)
TREEVIEW_UpdateDispInfo(infoPtr, newItem, TVIF_TEXT);
TREEVIEW_ComputeTextWidth(infoPtr, newItem, 0);
TREEVIEW_UpdateScrollBars(infoPtr);
/*
* if the item was inserted in a visible part of the tree,
* invalidate it, as well as those after it
*/
for (item = newItem;
item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
TREEVIEW_Invalidate(infoPtr, item);
}
else
{
newItem->visibleOrder = -1;
/* refresh treeview if newItem is the first item inserted under parentItem */
if (ISVISIBLE(parentItem) && newItem->prevSibling == newItem->nextSibling)
{
/* parent got '+' - update it */
TREEVIEW_Invalidate(infoPtr, parentItem);
}
}
return (LRESULT)newItem;
}
static LRESULT
TREEVIEW_InsertItemW(TREEVIEW_INFO *infoPtr, LPARAM lParam)
{
TVINSERTSTRUCTW *tvisW;
TVINSERTSTRUCTA tvisA;
LRESULT lRes;
tvisW = (LPTVINSERTSTRUCTW) lParam;
tvisA.hParent = tvisW->hParent;
tvisA.hInsertAfter = tvisW->hInsertAfter;
tvisA.DUMMYUNIONNAME.item.mask = tvisW->DUMMYUNIONNAME.item.mask;
tvisA.DUMMYUNIONNAME.item.hItem = tvisW->DUMMYUNIONNAME.item.hItem;
tvisA.DUMMYUNIONNAME.item.state = tvisW->DUMMYUNIONNAME.item.state;
tvisA.DUMMYUNIONNAME.item.stateMask = tvisW->DUMMYUNIONNAME.item.stateMask;
tvisA.DUMMYUNIONNAME.item.cchTextMax =
tvisW->DUMMYUNIONNAME.item.cchTextMax;
if (tvisW->DUMMYUNIONNAME.item.pszText)
{
if (tvisW->DUMMYUNIONNAME.item.pszText != LPSTR_TEXTCALLBACKW)
{
int len = WideCharToMultiByte( CP_ACP, 0, tvisW->DUMMYUNIONNAME.item.pszText, -1,
NULL, 0, NULL, NULL );
tvisA.DUMMYUNIONNAME.item.pszText = COMCTL32_Alloc(len);
WideCharToMultiByte( CP_ACP, 0, tvisW->DUMMYUNIONNAME.item.pszText, -1,
tvisA.DUMMYUNIONNAME.item.pszText, len, NULL, NULL );
}
else
{
tvisA.DUMMYUNIONNAME.item.pszText = LPSTR_TEXTCALLBACKA;
tvisA.DUMMYUNIONNAME.item.cchTextMax = 0;
}
}
tvisA.DUMMYUNIONNAME.item.iImage = tvisW->DUMMYUNIONNAME.item.iImage;
tvisA.DUMMYUNIONNAME.item.iSelectedImage =
tvisW->DUMMYUNIONNAME.item.iSelectedImage;
tvisA.DUMMYUNIONNAME.item.cChildren = tvisW->DUMMYUNIONNAME.item.cChildren;
tvisA.DUMMYUNIONNAME.item.lParam = tvisW->DUMMYUNIONNAME.item.lParam;
lRes = TREEVIEW_InsertItemA(infoPtr, (LPARAM)&tvisA);
if (tvisA.DUMMYUNIONNAME.item.pszText != LPSTR_TEXTCALLBACKA)
{
COMCTL32_Free(tvisA.DUMMYUNIONNAME.item.pszText);
}
return lRes;
}
/* Item Deletion ************************************************************/
static void
TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem);
static void
TREEVIEW_RemoveAllChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *parentItem)
{
TREEVIEW_ITEM *kill = parentItem->firstChild;
while (kill != NULL)
{
TREEVIEW_ITEM *next = kill->nextSibling;
TREEVIEW_RemoveItem(infoPtr, kill);
kill = next;
}
assert(parentItem->cChildren <= 0); /* I_CHILDRENCALLBACK or 0 */
assert(parentItem->firstChild == NULL);
assert(parentItem->lastChild == NULL);
}
static void
TREEVIEW_UnlinkItem(TREEVIEW_ITEM *item)
{
TREEVIEW_ITEM *parentItem = item->parent;
assert(item != NULL);
assert(item->parent != NULL); /* i.e. it must not be the root */
if (parentItem->firstChild == item)
parentItem->firstChild = item->nextSibling;
if (parentItem->lastChild == item)
parentItem->lastChild = item->prevSibling;
if (parentItem->firstChild == NULL && parentItem->lastChild == NULL
&& parentItem->cChildren > 0)
parentItem->cChildren = 0;
if (item->prevSibling)
item->prevSibling->nextSibling = item->nextSibling;
if (item->nextSibling)
item->nextSibling->prevSibling = item->prevSibling;
}
static void
TREEVIEW_RemoveItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem)
{
TRACE("%p, (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
TREEVIEW_SendTreeviewNotify(infoPtr,
(infoPtr->bNtfUnicode) ? TVN_DELETEITEMW :
TVN_DELETEITEMA,
TVIF_HANDLE | TVIF_PARAM, 0, wineItem, 0);
if (wineItem->firstChild)
TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
TREEVIEW_UnlinkItem(wineItem);
infoPtr->uNumItems--;
if (wineItem->pszText != LPSTR_TEXTCALLBACKA)
COMCTL32_Free(wineItem->pszText);
TREEVIEW_FreeItem(infoPtr, wineItem);
}
/* Empty out the tree. */
static void
TREEVIEW_RemoveTree(TREEVIEW_INFO *infoPtr)
{
TREEVIEW_RemoveAllChildren(infoPtr, infoPtr->root);
assert(infoPtr->uNumItems == 0); /* root isn't counted in uNumItems */
}
static LRESULT
TREEVIEW_DeleteItem(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem)
{
TREEVIEW_ITEM *oldSelection = infoPtr->selectedItem;
TREEVIEW_ITEM *newSelection = oldSelection;
TREEVIEW_ITEM *newFirstVisible = NULL;
TREEVIEW_ITEM *parent, *prev = NULL;
BOOL visible = FALSE;
if (wineItem == TVI_ROOT)
{
TRACE("TVI_ROOT\n");
parent = infoPtr->root;
newSelection = NULL;
visible = TRUE;
TREEVIEW_RemoveTree(infoPtr);
}
else
{
if (!TREEVIEW_ValidItem(infoPtr, wineItem))
return FALSE;
TRACE("%p (%s)\n", wineItem, TREEVIEW_ItemName(wineItem));
parent = wineItem->parent;
if (ISVISIBLE(wineItem))
{
prev = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
visible = TRUE;
}
if (infoPtr->selectedItem != NULL
&& (wineItem == infoPtr->selectedItem
|| TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem)))
{
if (wineItem->nextSibling)
newSelection = wineItem->nextSibling;
else if (wineItem->parent != infoPtr->root)
newSelection = wineItem->parent;
}
if (infoPtr->firstVisible == wineItem)
{
if (wineItem->nextSibling)
newFirstVisible = wineItem->nextSibling;
else if (wineItem->prevSibling)
newFirstVisible = wineItem->prevSibling;
else if (wineItem->parent != infoPtr->root)
newFirstVisible = wineItem->parent;
}
else
newFirstVisible = infoPtr->firstVisible;
TREEVIEW_RemoveItem(infoPtr, wineItem);
}
/* Don't change if somebody else already has. */
if (oldSelection == infoPtr->selectedItem)
{
if (TREEVIEW_ValidItem(infoPtr, newSelection))
TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection, TVC_UNKNOWN);
else
infoPtr->selectedItem = 0;
}
/* Validate insertMark dropItem.
* hotItem ??? - used for comparison only.
*/
if (!TREEVIEW_ValidItem(infoPtr, infoPtr->insertMarkItem))
infoPtr->insertMarkItem = 0;
if (!TREEVIEW_ValidItem(infoPtr, infoPtr->dropItem))
infoPtr->dropItem = 0;
if (!TREEVIEW_ValidItem(infoPtr, newFirstVisible))
newFirstVisible = infoPtr->root->firstChild;
TREEVIEW_VerifyTree(infoPtr);
if (visible)
{
TREEVIEW_RecalculateVisibleOrder(infoPtr, prev);
TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
}
else if (ISVISIBLE(parent) && !TREEVIEW_HasChildren(infoPtr, parent))
{
/* parent lost '+/-' - update it */
TREEVIEW_Invalidate(infoPtr, parent);
}
return TRUE;
}
/* Get/Set Messages *********************************************************/
static LRESULT
TREEVIEW_SetRedraw(TREEVIEW_INFO* infoPtr, WPARAM wParam, LPARAM lParam)
{
if(wParam)
infoPtr->bRedraw = TRUE;
else
infoPtr->bRedraw = FALSE;
return 0;
}
static LRESULT
TREEVIEW_GetIndent(TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return infoPtr->uIndent;
}
static LRESULT
TREEVIEW_SetIndent(TREEVIEW_INFO *infoPtr, UINT newIndent)
{
TRACE("\n");
if (newIndent < MINIMUM_INDENT)
newIndent = MINIMUM_INDENT;
if (infoPtr->uIndent != newIndent)
{
infoPtr->uIndent = newIndent;
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
}
return 0;
}
static LRESULT
TREEVIEW_GetToolTips(TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return (LRESULT)infoPtr->hwndToolTip;
}
static LRESULT
TREEVIEW_SetToolTips(TREEVIEW_INFO *infoPtr, HWND hwndTT)
{
HWND prevToolTip;
TRACE("\n");
prevToolTip = infoPtr->hwndToolTip;
infoPtr->hwndToolTip = hwndTT;
return (LRESULT)prevToolTip;
}
static LRESULT
TREEVIEW_GetScrollTime(TREEVIEW_INFO *infoPtr)
{
return infoPtr->uScrollTime;
}
static LRESULT
TREEVIEW_SetScrollTime(TREEVIEW_INFO *infoPtr, UINT uScrollTime)
{
UINT uOldScrollTime = infoPtr->uScrollTime;
infoPtr->uScrollTime = min(uScrollTime, 100);
return uOldScrollTime;
}
static LRESULT
TREEVIEW_GetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam)
{
TRACE("\n");
switch (wParam)
{
case (WPARAM)TVSIL_NORMAL:
return (LRESULT)infoPtr->himlNormal;
case (WPARAM)TVSIL_STATE:
return (LRESULT)infoPtr->himlState;
default:
return 0;
}
}
static LRESULT
TREEVIEW_SetImageList(TREEVIEW_INFO *infoPtr, WPARAM wParam, HIMAGELIST himlNew)
{
HIMAGELIST himlOld = 0;
int oldWidth = infoPtr->normalImageWidth;
int oldHeight = infoPtr->normalImageHeight;
TRACE("%x,%p\n", wParam, himlNew);
switch (wParam)
{
case (WPARAM)TVSIL_NORMAL:
himlOld = infoPtr->himlNormal;
infoPtr->himlNormal = himlNew;
if (himlNew != NULL)
ImageList_GetIconSize(himlNew, &infoPtr->normalImageWidth,
&infoPtr->normalImageHeight);
else
{
infoPtr->normalImageWidth = 0;
infoPtr->normalImageHeight = 0;
}
break;
case (WPARAM)TVSIL_STATE:
himlOld = infoPtr->himlState;
infoPtr->himlState = himlNew;
if (himlNew != NULL)
ImageList_GetIconSize(himlNew, &infoPtr->stateImageWidth,
&infoPtr->stateImageHeight);
else
{
infoPtr->stateImageWidth = 0;
infoPtr->stateImageHeight = 0;
}
break;
}
if (oldWidth != infoPtr->normalImageWidth ||
oldHeight != infoPtr->normalImageHeight)
{
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
TREEVIEW_UpdateScrollBars(infoPtr);
}
TREEVIEW_Invalidate(infoPtr, NULL);
return (LRESULT)himlOld;
}
/* Compute the natural height (based on the font size) for items. */
static UINT
TREEVIEW_NaturalHeight(TREEVIEW_INFO *infoPtr)
{
TEXTMETRICA tm;
HDC hdc = GetDC(0);
HFONT hOldFont = SelectObject(hdc, infoPtr->hFont);
GetTextMetricsA(hdc, &tm);
SelectObject(hdc, hOldFont);
ReleaseDC(0, hdc);
/* The 16 is a hack because our fonts are tiny. */
/* add 2 for the focus border and 1 more for margin some apps assume */
return max(16, tm.tmHeight + tm.tmExternalLeading + 3);
}
static LRESULT
TREEVIEW_SetItemHeight(TREEVIEW_INFO *infoPtr, INT newHeight)
{
INT prevHeight = infoPtr->uItemHeight;
TRACE("%d \n", newHeight);
if (newHeight == -1)
{
infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
infoPtr->bHeightSet = FALSE;
}
else
{
infoPtr->uItemHeight = newHeight;
infoPtr->bHeightSet = TRUE;
}
/* Round down, unless we support odd ("non even") heights. */
if (!(infoPtr->dwStyle) & TVS_NONEVENHEIGHT)
infoPtr->uItemHeight &= ~1;
if (infoPtr->uItemHeight != prevHeight)
{
TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
}
return prevHeight;
}
static LRESULT
TREEVIEW_GetItemHeight(TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return infoPtr->uItemHeight;
}
static LRESULT
TREEVIEW_GetFont(TREEVIEW_INFO *infoPtr)
{
TRACE("%x\n", infoPtr->hFont);
return infoPtr->hFont;
}
static INT CALLBACK
TREEVIEW_ResetTextWidth(LPVOID pItem, DWORD unused)
{
(void)unused;
((TREEVIEW_ITEM *)pItem)->textWidth = 0;
return 1;
}
static LRESULT
TREEVIEW_SetFont(TREEVIEW_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
{
UINT uHeight = infoPtr->uItemHeight;
TRACE("%x %i\n", hFont, bRedraw);
infoPtr->hFont = hFont ? hFont : GetStockObject(SYSTEM_FONT);
DeleteObject(infoPtr->hBoldFont);
infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
if (!infoPtr->bHeightSet)
infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
if (uHeight != infoPtr->uItemHeight)
TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
DPA_EnumCallback(infoPtr->items, TREEVIEW_ResetTextWidth, 0);
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
TREEVIEW_UpdateScrollBars(infoPtr);
if (bRedraw)
TREEVIEW_Invalidate(infoPtr, NULL);
return 0;
}
static LRESULT
TREEVIEW_GetLineColor(TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return (LRESULT)infoPtr->clrLine;
}
static LRESULT
TREEVIEW_SetLineColor(TREEVIEW_INFO *infoPtr, COLORREF color)
{
COLORREF prevColor = infoPtr->clrLine;
TRACE("\n");
infoPtr->clrLine = color;
return (LRESULT)prevColor;
}
static LRESULT
TREEVIEW_GetTextColor(TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return (LRESULT)infoPtr->clrText;
}
static LRESULT
TREEVIEW_SetTextColor(TREEVIEW_INFO *infoPtr, COLORREF color)
{
COLORREF prevColor = infoPtr->clrText;
TRACE("\n");
infoPtr->clrText = color;
if (infoPtr->clrText != prevColor)
TREEVIEW_Invalidate(infoPtr, NULL);
return (LRESULT)prevColor;
}
static LRESULT
TREEVIEW_GetBkColor(TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return (LRESULT)infoPtr->clrBk;
}
static LRESULT
TREEVIEW_SetBkColor(TREEVIEW_INFO *infoPtr, COLORREF newColor)
{
COLORREF prevColor = infoPtr->clrBk;
TRACE("\n");
infoPtr->clrBk = newColor;
if (newColor != prevColor)
TREEVIEW_Invalidate(infoPtr, NULL);
return (LRESULT)prevColor;
}
static LRESULT
TREEVIEW_GetInsertMarkColor(TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
return (LRESULT)infoPtr->clrInsertMark;
}
static LRESULT
TREEVIEW_SetInsertMarkColor(TREEVIEW_INFO *infoPtr, COLORREF color)
{
COLORREF prevColor = infoPtr->clrInsertMark;
TRACE("%lx\n", color);
infoPtr->clrInsertMark = color;
return (LRESULT)prevColor;
}
static LRESULT
TREEVIEW_SetInsertMark(TREEVIEW_INFO *infoPtr, BOOL wParam, HTREEITEM item)
{
TRACE("%d %p\n", wParam, item);
if (!TREEVIEW_ValidItem(infoPtr, item))
return 0;
infoPtr->insertBeforeorAfter = wParam;
infoPtr->insertMarkItem = item;
TREEVIEW_Invalidate(infoPtr, NULL);
return 1;
}
/************************************************************************
* Some serious braindamage here. lParam is a pointer to both the
* input HTREEITEM and the output RECT.
*/
static LRESULT
TREEVIEW_GetItemRect(TREEVIEW_INFO *infoPtr, BOOL fTextRect, LPRECT lpRect)
{
TREEVIEW_ITEM *wineItem;
const HTREEITEM *pItem = (HTREEITEM *)lpRect;
TRACE("\n");
/*
* validate parameters
*/
if (pItem == NULL)
return FALSE;
wineItem = *pItem;
if (!TREEVIEW_ValidItem(infoPtr, wineItem) || !ISVISIBLE(wineItem))
return FALSE;
/*
* If wParam is TRUE return the text size otherwise return
* the whole item size
*/
if (fTextRect)
{
/* Windows does not send TVN_GETDISPINFO here. */
lpRect->top = wineItem->rect.top;
lpRect->bottom = wineItem->rect.bottom;
lpRect->left = wineItem->textOffset;
lpRect->right = wineItem->textOffset + wineItem->textWidth;
}
else
{
*lpRect = wineItem->rect;
}
TRACE("%s [L:%d R:%d T:%d B:%d]\n", fTextRect ? "text" : "item",
lpRect->left, lpRect->right, lpRect->top, lpRect->bottom);
return TRUE;
}
static inline LRESULT
TREEVIEW_GetVisibleCount(TREEVIEW_INFO *infoPtr)
{
/* Suprise! This does not take integral height into account. */
return infoPtr->clientHeight / infoPtr->uItemHeight;
}
static LRESULT
TREEVIEW_GetItemA(TREEVIEW_INFO *infoPtr, LPTVITEMEXA tvItem)
{
TREEVIEW_ITEM *wineItem;
wineItem = tvItem->hItem;
if (!TREEVIEW_ValidItem(infoPtr, wineItem))
return FALSE;
TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
if (tvItem->mask & TVIF_CHILDREN)
tvItem->cChildren = wineItem->cChildren;
if (tvItem->mask & TVIF_HANDLE)
tvItem->hItem = wineItem;
if (tvItem->mask & TVIF_IMAGE)
tvItem->iImage = wineItem->iImage;
if (tvItem->mask & TVIF_INTEGRAL)
tvItem->iIntegral = wineItem->iIntegral;
/* undocumented: windows ignores TVIF_PARAM and
* * always sets lParam
*/
tvItem->lParam = wineItem->lParam;
if (tvItem->mask & TVIF_SELECTEDIMAGE)
tvItem->iSelectedImage = wineItem->iSelectedImage;
if (tvItem->mask & TVIF_STATE)
tvItem->state = wineItem->state & tvItem->stateMask;
if (tvItem->mask & TVIF_TEXT)
lstrcpynA(tvItem->pszText, wineItem->pszText, tvItem->cchTextMax);
TRACE("item <%p>, txt %p, img %p, mask %x\n",
wineItem, tvItem->pszText, &tvItem->iImage, tvItem->mask);
return TRUE;
}
/* Beware MSDN Library Visual Studio 6.0. It says -1 on failure, 0 on success,
* which is wrong. */
static LRESULT
TREEVIEW_SetItemA(TREEVIEW_INFO *infoPtr, LPTVITEMEXA tvItem)
{
TREEVIEW_ITEM *wineItem;
TREEVIEW_ITEM originalItem;
wineItem = tvItem->hItem;
TRACE("item %d,mask %x\n", TREEVIEW_GetItemIndex(infoPtr, wineItem),
tvItem->mask);
if (!TREEVIEW_ValidItem(infoPtr, wineItem))
return FALSE;
if (!TREEVIEW_DoSetItem(infoPtr, wineItem, tvItem))
return FALSE;
/* store the orignal item values */
originalItem = *wineItem;
/* If the text or TVIS_BOLD was changed, and it is visible, recalculate. */
if ((tvItem->mask & TVIF_TEXT
|| (tvItem->mask & TVIF_STATE && tvItem->stateMask & TVIS_BOLD))
&& ISVISIBLE(wineItem))
{
TREEVIEW_UpdateDispInfo(infoPtr, wineItem, TVIF_TEXT);
TREEVIEW_ComputeTextWidth(infoPtr, wineItem, 0);
}
if (tvItem->mask != 0 && ISVISIBLE(wineItem))
{
/* The refresh updates everything, but we can't wait until then. */
TREEVIEW_ComputeItemInternalMetrics(infoPtr, wineItem);
/* if any of the items values changed, redraw the item */
if(memcmp(&originalItem, wineItem, sizeof(TREEVIEW_ITEM)))
{
if (tvItem->mask & TVIF_INTEGRAL)
{
TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
}
else
{
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, wineItem);
}
}
}
return TRUE;
}
static LRESULT
TREEVIEW_GetItemW(TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem)
{
TREEVIEW_ITEM *wineItem;
INT iItem;
iItem = (INT)tvItem->hItem;
wineItem = tvItem->hItem;
if(!TREEVIEW_ValidItem (infoPtr, wineItem))
return FALSE;
TREEVIEW_UpdateDispInfo(infoPtr, wineItem, tvItem->mask);
if (tvItem->mask & TVIF_CHILDREN) {
if (TVIF_CHILDREN==I_CHILDRENCALLBACK)
FIXME("I_CHILDRENCALLBACK not supported\n");
tvItem->cChildren = wineItem->cChildren;
}
if (tvItem->mask & TVIF_HANDLE) {
tvItem->hItem = wineItem;
}
if (tvItem->mask & TVIF_IMAGE) {
tvItem->iImage = wineItem->iImage;
}
if (tvItem->mask & TVIF_INTEGRAL) {
tvItem->iIntegral = wineItem->iIntegral;
}
/* undocumented: windows ignores TVIF_PARAM and
* always sets lParam */
tvItem->lParam = wineItem->lParam;
if (tvItem->mask & TVIF_SELECTEDIMAGE) {
tvItem->iSelectedImage = wineItem->iSelectedImage;
}
if (tvItem->mask & TVIF_STATE) {
tvItem->state = wineItem->state & tvItem->stateMask;
}
if (tvItem->mask & TVIF_TEXT) {
if (wineItem->pszText == LPSTR_TEXTCALLBACKA) {
tvItem->pszText = LPSTR_TEXTCALLBACKW;
FIXME(" GetItem called with LPSTR_TEXTCALLBACK\n");
}
else if (wineItem->pszText) {
TRACE("orig str %s at %p\n",
debugstr_a(wineItem->pszText), wineItem->pszText);
MultiByteToWideChar(CP_ACP, 0, wineItem->pszText,
-1 , tvItem->pszText, tvItem->cchTextMax);
}
}
TRACE("item %d<%p>, txt %p<%s>, img %p, action %x\n",
iItem, tvItem, tvItem->pszText, debugstr_w(tvItem->pszText),
&tvItem->iImage, tvItem->mask);
return TRUE;
}
static LRESULT
TREEVIEW_SetItemW(TREEVIEW_INFO *infoPtr, LPTVITEMEXW tvItem)
{
TVITEMEXA tvItemA;
INT len;
LRESULT rc;
tvItemA.mask = tvItem->mask;
tvItemA.hItem = tvItem->hItem;
tvItemA.state = tvItem->state;
tvItemA.stateMask = tvItem->stateMask;
if (tvItem->mask & TVIF_TEXT) {
len = WideCharToMultiByte(CP_ACP, 0, tvItem->pszText, -1,
NULL ,0 , NULL,NULL);
if (len) {
len ++;
tvItemA.pszText = HeapAlloc(GetProcessHeap(),0,len*sizeof(WCHAR));
len = WideCharToMultiByte(CP_ACP, 0, tvItem->pszText, -1,
tvItemA.pszText ,len*sizeof(WCHAR),
NULL,NULL);
}
else
tvItemA.pszText = NULL;
}
tvItemA.cchTextMax = tvItem->cchTextMax;
tvItemA.iImage = tvItem->iImage;
tvItemA.iSelectedImage = tvItem->iSelectedImage;
tvItemA.cChildren = tvItem->cChildren;
tvItemA.lParam = tvItem->lParam;
tvItemA.iIntegral = tvItem->iIntegral;
rc = TREEVIEW_SetItemA(infoPtr,&tvItemA);
HeapFree(GetProcessHeap(),0,tvItemA.pszText);
return rc;
}
static LRESULT
TREEVIEW_GetItemState(TREEVIEW_INFO *infoPtr, HTREEITEM wineItem, UINT mask)
{
TRACE("\n");
if (!wineItem || !TREEVIEW_ValidItem(infoPtr, wineItem))
return 0;
return (wineItem->state & mask);
}
static LRESULT
TREEVIEW_GetNextItem(TREEVIEW_INFO *infoPtr, UINT which, HTREEITEM wineItem)
{
TREEVIEW_ITEM *retval;
retval = 0;
/* handle all the global data here */
switch (which)
{
case TVGN_CHILD: /* Special case: child of 0 is root */
if (wineItem)
break;
/* fall through */
case TVGN_ROOT:
retval = infoPtr->root->firstChild;
break;
case TVGN_CARET:
retval = infoPtr->selectedItem;
break;
case TVGN_FIRSTVISIBLE:
retval = infoPtr->firstVisible;
break;
case TVGN_DROPHILITE:
retval = infoPtr->dropItem;
break;
case TVGN_LASTVISIBLE:
retval = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
break;
}
if (retval)
{
TRACE("flags:%x, returns %p\n", which, retval);
return (LRESULT)retval;
}
if (wineItem == TVI_ROOT) wineItem = infoPtr->root;
if (!TREEVIEW_ValidItem(infoPtr, wineItem))
return FALSE;
switch (which)
{
case TVGN_NEXT:
retval = wineItem->nextSibling;
break;
case TVGN_PREVIOUS:
retval = wineItem->prevSibling;
break;
case TVGN_PARENT:
retval = (wineItem->parent != infoPtr->root) ? wineItem->parent : NULL;
break;
case TVGN_CHILD:
retval = wineItem->firstChild;
break;
case TVGN_NEXTVISIBLE:
retval = TREEVIEW_GetNextListItem(infoPtr, wineItem);
break;
case TVGN_PREVIOUSVISIBLE:
retval = TREEVIEW_GetPrevListItem(infoPtr, wineItem);
break;
default:
TRACE("Unknown msg %x,item %p\n", which, wineItem);
break;
}
TRACE("flags:%x, item %p;returns %p\n", which, wineItem, retval);
return (LRESULT)retval;
}
static LRESULT
TREEVIEW_GetCount(TREEVIEW_INFO *infoPtr)
{
TRACE(" %d\n", infoPtr->uNumItems);
return (LRESULT)infoPtr->uNumItems;
}
static VOID
TREEVIEW_ToggleItemState(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
if (infoPtr->dwStyle & TVS_CHECKBOXES)
{
static const unsigned int state_table[] = { 0, 2, 1 };
unsigned int state;
state = STATEIMAGEINDEX(item->state);
TRACE("state:%x\n", state);
item->state &= ~TVIS_STATEIMAGEMASK;
if (state < 3)
state = state_table[state];
item->state |= INDEXTOSTATEIMAGEMASK(state);
TRACE("state:%x\n", state);
TREEVIEW_Invalidate(infoPtr, item);
}
}
/* Painting *************************************************************/
/* Draw the lines and expand button for an item. Also draws one section
* of the line from item's parent to item's parent's next sibling. */
static void
TREEVIEW_DrawItemLines(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *item)
{
LONG centerx, centery;
BOOL lar = ((infoPtr->dwStyle
& (TVS_LINESATROOT|TVS_HASLINES|TVS_HASBUTTONS))
> TVS_LINESATROOT);
if (!lar && item->iLevel == 0)
return;
centerx = (item->linesOffset + item->stateOffset) / 2;
centery = (item->rect.top + item->rect.bottom) / 2;
if (infoPtr->dwStyle & TVS_HASLINES)
{
HPEN hOldPen, hNewPen;
HTREEITEM parent;
/*
* Get a dotted grey pen
*/
hNewPen = CreatePen(PS_ALTERNATE, 0, infoPtr->clrLine);
hOldPen = SelectObject(hdc, hNewPen);
MoveToEx(hdc, item->stateOffset, centery, NULL);
LineTo(hdc, centerx - 1, centery);
if (item->prevSibling || item->parent != infoPtr->root)
{
MoveToEx(hdc, centerx, item->rect.top, NULL);
LineTo(hdc, centerx, centery);
}
if (item->nextSibling)
{
MoveToEx(hdc, centerx, centery, NULL);
LineTo(hdc, centerx, item->rect.bottom + 1);
}
/* Draw the line from our parent to its next sibling. */
parent = item->parent;
while (parent != infoPtr->root)
{
int pcenterx = (parent->linesOffset + parent->stateOffset) / 2;
if (parent->nextSibling
/* skip top-levels unless TVS_LINESATROOT */
&& parent->stateOffset > parent->linesOffset)
{
MoveToEx(hdc, pcenterx, item->rect.top, NULL);
LineTo(hdc, pcenterx, item->rect.bottom + 1);
}
parent = parent->parent;
}
SelectObject(hdc, hOldPen);
DeleteObject(hNewPen);
}
/*
* Display the (+/-) signs
*/
if (infoPtr->dwStyle & TVS_HASBUTTONS)
{
if (item->cChildren)
{
LONG height = item->rect.bottom - item->rect.top;
LONG width = item->stateOffset - item->linesOffset;
LONG rectsize = min(height, width) / 4;
/* plussize = ceil(rectsize * 3/4) */
LONG plussize = (rectsize + 1) * 3 / 4;
HPEN hNewPen = CreatePen(PS_SOLID, 0, infoPtr->clrLine);
HPEN hOldPen = SelectObject(hdc, hNewPen);
HBRUSH hbr = CreateSolidBrush(infoPtr->clrBk);
HBRUSH hbrOld = SelectObject(hdc, hbr);
Rectangle(hdc, centerx - rectsize, centery - rectsize,
centerx + rectsize + 1, centery + rectsize + 1);
SelectObject(hdc, hbrOld);
DeleteObject(hbr);
SelectObject(hdc, hOldPen);
DeleteObject(hNewPen);
MoveToEx(hdc, centerx - plussize + 1, centery, NULL);
LineTo(hdc, centerx + plussize, centery);
if (!(item->state & TVIS_EXPANDED))
{
MoveToEx(hdc, centerx, centery - plussize + 1, NULL);
LineTo(hdc, centerx, centery + plussize);
}
}
}
}
static void
TREEVIEW_DrawItem(TREEVIEW_INFO *infoPtr, HDC hdc, TREEVIEW_ITEM *wineItem)
{
INT cditem;
HFONT hOldFont;
int centery;
hOldFont = SelectObject(hdc, TREEVIEW_FontForItem(infoPtr, wineItem));
TREEVIEW_UpdateDispInfo(infoPtr, wineItem, CALLBACK_MASK_ALL);
/* The custom draw handler can query the text rectangle,
* so get ready. */
TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
cditem = 0;
if (infoPtr->cdmode & CDRF_NOTIFYITEMDRAW)
{
cditem = TREEVIEW_SendCustomDrawItemNotify
(infoPtr, hdc, wineItem, CDDS_ITEMPREPAINT);
TRACE("prepaint:cditem-app returns 0x%x\n", cditem);
if (cditem & CDRF_SKIPDEFAULT)
{
SelectObject(hdc, hOldFont);
return;
}
}
if (cditem & CDRF_NEWFONT)
TREEVIEW_ComputeTextWidth(infoPtr, wineItem, hdc);
TREEVIEW_DrawItemLines(infoPtr, hdc, wineItem);
centery = (wineItem->rect.top + wineItem->rect.bottom) / 2;
/*
* Display the images associated with this item
*/
{
INT imageIndex;
/* State images are displayed to the left of the Normal image
* image number is in state; zero should be `display no image'.
*/
imageIndex = STATEIMAGEINDEX(wineItem->state);
if (infoPtr->himlState && imageIndex)
{
ImageList_Draw(infoPtr->himlState, imageIndex, hdc,
wineItem->stateOffset,
centery - infoPtr->stateImageHeight / 2,
ILD_NORMAL);
}
/* Now, draw the normal image; can be either selected or
* non-selected image.
*/
if ((wineItem->state & TVIS_SELECTED) && (wineItem->iSelectedImage))
{
/* The item is currently selected */
imageIndex = wineItem->iSelectedImage;
}
else
{
/* The item is not selected */
imageIndex = wineItem->iImage;
}
if (infoPtr->himlNormal)
{
int ovlIdx = wineItem->state & TVIS_OVERLAYMASK;
ImageList_Draw(infoPtr->himlNormal, imageIndex, hdc,
wineItem->imageOffset,
centery - infoPtr->normalImageHeight / 2,
ILD_NORMAL | ovlIdx);
}
}
/*
* Display the text associated with this item
*/
/* Don't paint item's text if it's being edited */
if (!infoPtr->hwndEdit || (infoPtr->selectedItem != wineItem))
{
if (wineItem->pszText)
{
COLORREF oldTextColor = 0;
INT oldBkMode;
HBRUSH hbrBk = 0;
BOOL inFocus = (GetFocus() == infoPtr->hwnd);
RECT rcText;
oldBkMode = SetBkMode(hdc, TRANSPARENT);
/* - If item is drop target or it is selected and window is in focus -
* use blue background (COLOR_HIGHLIGHT).
* - If item is selected, window is not in focus, but it has style
* TVS_SHOWSELALWAYS - use grey background (COLOR_BTNFACE)
* - Otherwise - don't fill background
*/
if ((wineItem->state & TVIS_DROPHILITED) || ((wineItem == infoPtr->focusedItem) && !(wineItem->state & TVIS_SELECTED)) ||
((wineItem->state & TVIS_SELECTED) && (!infoPtr->focusedItem) &&
(inFocus || (infoPtr->dwStyle & TVS_SHOWSELALWAYS))))
{
if ((wineItem->state & TVIS_DROPHILITED) || inFocus)
{
hbrBk = CreateSolidBrush(GetSysColor(COLOR_HIGHLIGHT));
oldTextColor =
SetTextColor(hdc, GetSysColor(COLOR_HIGHLIGHTTEXT));
}
else
{
hbrBk = CreateSolidBrush(GetSysColor(COLOR_BTNFACE));
if (infoPtr->clrText == -1)
oldTextColor =
SetTextColor(hdc, GetSysColor(COLOR_WINDOWTEXT));
else
oldTextColor = SetTextColor(hdc, infoPtr->clrText);
}
}
else
{
if (infoPtr->clrText == -1)
oldTextColor =
SetTextColor(hdc, GetSysColor(COLOR_WINDOWTEXT));
else
oldTextColor = SetTextColor(hdc, infoPtr->clrText);
}
rcText.top = wineItem->rect.top;
rcText.bottom = wineItem->rect.bottom;
rcText.left = wineItem->textOffset;
rcText.right = rcText.left + wineItem->textWidth + 4;
if (hbrBk)
{
FillRect(hdc, &rcText, hbrBk);
DeleteObject(hbrBk);
}
/* Draw the box around the selected item */
if ((wineItem == infoPtr->selectedItem) && inFocus)
{
DrawFocusRect(hdc,&rcText);
}
InflateRect(&rcText, -2, -1); /* allow for the focus rect */
TRACE("drawing text %s at (%d,%d)-(%d,%d)\n",
debugstr_a(wineItem->pszText),
rcText.left, rcText.top, rcText.right, rcText.bottom);
/* Draw it */
DrawTextA(hdc,
wineItem->pszText,
lstrlenA(wineItem->pszText),
&rcText,
DT_CENTER | DT_VCENTER | DT_SINGLELINE | DT_NOPREFIX);
/* Restore the hdc state */
SetTextColor(hdc, oldTextColor);
if (oldBkMode != TRANSPARENT)
SetBkMode(hdc, oldBkMode);
}
}
/* Draw insertion mark if necessary */
if (infoPtr->insertMarkItem)
TRACE("item:%d,mark:%d\n",
TREEVIEW_GetItemIndex(infoPtr, wineItem),
(int)infoPtr->insertMarkItem);
if (wineItem == infoPtr->insertMarkItem)
{
HPEN hNewPen, hOldPen;
int offset;
int left, right;
hNewPen = CreatePen(PS_SOLID, 2, infoPtr->clrInsertMark);
hOldPen = SelectObject(hdc, hNewPen);
if (infoPtr->insertBeforeorAfter)
offset = wineItem->rect.bottom - 1;
else
offset = wineItem->rect.top + 1;
left = wineItem->textOffset - 2;
right = wineItem->textOffset + wineItem->textWidth + 2;
MoveToEx(hdc, left, offset - 3, NULL);
LineTo(hdc, left, offset + 4);
MoveToEx(hdc, left, offset, NULL);
LineTo(hdc, right + 1, offset);
MoveToEx(hdc, right, offset + 3, NULL);
LineTo(hdc, right, offset - 4);
SelectObject(hdc, hOldPen);
DeleteObject(hNewPen);
}
if (cditem & CDRF_NOTIFYPOSTPAINT)
{
cditem = TREEVIEW_SendCustomDrawItemNotify
(infoPtr, hdc, wineItem, CDDS_ITEMPOSTPAINT);
TRACE("postpaint:cditem-app returns 0x%x\n", cditem);
}
SelectObject(hdc, hOldFont);
}
/* Computes treeHeight and treeWidth and updates the scroll bars.
*/
static void
TREEVIEW_UpdateScrollBars(TREEVIEW_INFO *infoPtr)
{
TREEVIEW_ITEM *wineItem;
HWND hwnd = infoPtr->hwnd;
BOOL vert = FALSE;
BOOL horz = FALSE;
SCROLLINFO si;
LONG scrollX = infoPtr->scrollX;
infoPtr->treeWidth = 0;
infoPtr->treeHeight = 0;
/* We iterate through all visible items in order to get the tree height
* and width */
wineItem = infoPtr->root->firstChild;
while (wineItem != NULL)
{
if (ISVISIBLE(wineItem))
{
/* actually we draw text at textOffset + 2 */
if (2+wineItem->textOffset+wineItem->textWidth > infoPtr->treeWidth)
infoPtr->treeWidth = wineItem->textOffset+wineItem->textWidth+2;
/* This is scroll-adjusted, but we fix this below. */
infoPtr->treeHeight = wineItem->rect.bottom;
}
wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem);
}
/* Fix the scroll adjusted treeHeight and treeWidth. */
if (infoPtr->root->firstChild)
infoPtr->treeHeight -= infoPtr->root->firstChild->rect.top;
infoPtr->treeWidth += infoPtr->scrollX;
if (infoPtr->dwStyle & TVS_NOSCROLL) return;
/* Adding one scroll bar may take up enough space that it forces us
* to add the other as well. */
if (infoPtr->treeHeight > infoPtr->clientHeight)
{
vert = TRUE;
if (infoPtr->treeWidth
> infoPtr->clientWidth - GetSystemMetrics(SM_CXVSCROLL))
horz = TRUE;
}
else if (infoPtr->treeWidth > infoPtr->clientWidth)
horz = TRUE;
if (!vert && horz && infoPtr->treeHeight
> infoPtr->clientHeight - GetSystemMetrics(SM_CYVSCROLL))
vert = TRUE;
if (horz && (infoPtr->dwStyle & TVS_NOHSCROLL)) horz = FALSE;
si.cbSize = sizeof(SCROLLINFO);
si.fMask = SIF_POS|SIF_RANGE|SIF_PAGE;
si.nMin = 0;
if (vert)
{
si.nPage = TREEVIEW_GetVisibleCount(infoPtr);
si.nPos = infoPtr->firstVisible->visibleOrder;
si.nMax = infoPtr->maxVisibleOrder - 1;
SetScrollInfo(hwnd, SB_VERT, &si, TRUE);
if (!(infoPtr->uInternalStatus & TV_VSCROLL))
ShowScrollBar(hwnd, SB_VERT, TRUE);
infoPtr->uInternalStatus |= TV_VSCROLL;
}
else
{
if (infoPtr->uInternalStatus & TV_VSCROLL)
ShowScrollBar(hwnd, SB_VERT, FALSE);
infoPtr->uInternalStatus &= ~TV_VSCROLL;
}
if (horz)
{
si.nPage = infoPtr->clientWidth;
si.nPos = infoPtr->scrollX;
si.nMax = infoPtr->treeWidth - 1;
if (si.nPos > si.nMax - max( si.nPage-1, 0 ))
{
si.nPos = si.nMax - max( si.nPage-1, 0 );
scrollX = si.nPos;
}
if (!(infoPtr->uInternalStatus & TV_HSCROLL))
ShowScrollBar(hwnd, SB_HORZ, TRUE);
infoPtr->uInternalStatus |= TV_HSCROLL;
SetScrollInfo(hwnd, SB_HORZ, &si, TRUE);
}
else
{
if (infoPtr->uInternalStatus & TV_HSCROLL)
ShowScrollBar(hwnd, SB_HORZ, FALSE);
infoPtr->uInternalStatus &= ~TV_HSCROLL;
scrollX = 0;
}
if (infoPtr->scrollX != scrollX)
{
TREEVIEW_HScroll(infoPtr,
MAKEWPARAM(SB_THUMBPOSITION, scrollX));
}
if (!horz)
infoPtr->uInternalStatus &= ~TV_HSCROLL;
}
/* CtrlSpy doesn't mention this, but CorelDRAW's object manager needs it. */
static LRESULT
TREEVIEW_EraseBackground(TREEVIEW_INFO *infoPtr, HDC hDC)
{
HBRUSH hBrush = CreateSolidBrush(infoPtr->clrBk);
RECT rect;
GetClientRect(infoPtr->hwnd, &rect);
FillRect(hDC, &rect, hBrush);
DeleteObject(hBrush);
return 1;
}
static void
TREEVIEW_Refresh(TREEVIEW_INFO *infoPtr, HDC hdc, RECT *rc)
{
HWND hwnd = infoPtr->hwnd;
RECT rect = *rc;
TREEVIEW_ITEM *wineItem;
if (infoPtr->clientHeight == 0 || infoPtr->clientWidth == 0)
{
TRACE("empty window\n");
return;
}
infoPtr->cdmode = TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_PREPAINT,
hdc, rect);
if (infoPtr->cdmode == CDRF_SKIPDEFAULT)
{
ReleaseDC(hwnd, hdc);
return;
}
for (wineItem = infoPtr->root->firstChild;
wineItem != NULL;
wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
{
if (ISVISIBLE(wineItem))
{
/* Avoid unneeded calculations */
if (wineItem->rect.top > rect.bottom)
break;
if (wineItem->rect.bottom < rect.top)
continue;
TREEVIEW_DrawItem(infoPtr, hdc, wineItem);
}
}
TREEVIEW_UpdateScrollBars(infoPtr);
if (infoPtr->cdmode & CDRF_NOTIFYPOSTPAINT)
infoPtr->cdmode =
TREEVIEW_SendCustomDrawNotify(infoPtr, CDDS_POSTPAINT, hdc, rect);
}
static void
TREEVIEW_Invalidate(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
if (item != NULL)
InvalidateRect(infoPtr->hwnd, &item->rect, TRUE);
else
InvalidateRect(infoPtr->hwnd, NULL, TRUE);
}
static LRESULT
TREEVIEW_Paint(TREEVIEW_INFO *infoPtr, WPARAM wParam)
{
HDC hdc;
PAINTSTRUCT ps;
RECT rc;
TRACE("\n");
if (wParam)
{
hdc = (HDC)wParam;
if (!GetUpdateRect(infoPtr->hwnd, &rc, TRUE))
{
HBITMAP hbitmap;
BITMAP bitmap;
hbitmap = GetCurrentObject(hdc, OBJ_BITMAP);
if (!hbitmap) return 0;
GetObjectA(hbitmap, sizeof(BITMAP), &bitmap);
rc.left = 0; rc.top = 0;
rc.right = bitmap.bmWidth;
rc.bottom = bitmap.bmHeight;
TREEVIEW_EraseBackground(infoPtr, wParam);
}
}
else
{
hdc = BeginPaint(infoPtr->hwnd, &ps);
rc = ps.rcPaint;
}
if(infoPtr->bRedraw) /* WM_SETREDRAW sets bRedraw */
TREEVIEW_Refresh(infoPtr, hdc, &rc);
if (!wParam)
EndPaint(infoPtr->hwnd, &ps);
return 0;
}
/* Sorting **************************************************************/
/***************************************************************************
* Forward the DPA local callback to the treeview owner callback
*/
static INT WINAPI
TREEVIEW_CallBackCompare(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second, LPTVSORTCB pCallBackSort)
{
/* Forward the call to the client-defined callback */
return pCallBackSort->lpfnCompare(first->lParam,
second->lParam,
pCallBackSort->lParam);
}
/***************************************************************************
* Treeview native sort routine: sort on item text.
*/
static INT WINAPI
TREEVIEW_SortOnName(TREEVIEW_ITEM *first, TREEVIEW_ITEM *second,
TREEVIEW_INFO *infoPtr)
{
TREEVIEW_UpdateDispInfo(infoPtr, first, TVIF_TEXT);
TREEVIEW_UpdateDispInfo(infoPtr, second, TVIF_TEXT);
return strcasecmp(first->pszText, second->pszText);
}
/* Returns the number of physical children belonging to item. */
static INT
TREEVIEW_CountChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
INT cChildren = 0;
HTREEITEM hti;
for (hti = item->firstChild; hti != NULL; hti = hti->nextSibling)
cChildren++;
return cChildren;
}
/* Returns a DPA containing a pointer to each physical child of item in
* sibling order. If item has no children, an empty DPA is returned. */
static HDPA
TREEVIEW_BuildChildDPA(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
HTREEITEM child = item->firstChild;
HDPA list = DPA_Create(8);
if (list == 0) return NULL;
for (child = item->firstChild; child != NULL; child = child->nextSibling)
{
if (DPA_InsertPtr(list, INT_MAX, child) == -1)
{
DPA_Destroy(list);
return NULL;
}
}
return list;
}
/***************************************************************************
* Setup the treeview structure with regards of the sort method
* and sort the children of the TV item specified in lParam
* fRecurse: currently unused. Should be zero.
* parent: if pSort!=NULL, should equal pSort->hParent.
* otherwise, item which child items are to be sorted.
* pSort: sort method info. if NULL, sort on item text.
* if non-NULL, sort on item's lParam content, and let the
* application decide what that means. See also TVM_SORTCHILDRENCB.
*/
static LRESULT
TREEVIEW_Sort(TREEVIEW_INFO *infoPtr, BOOL fRecurse, HTREEITEM parent,
LPTVSORTCB pSort)
{
INT cChildren;
PFNDPACOMPARE pfnCompare;
LPARAM lpCompare;
/* undocumented feature: TVI_ROOT means `sort the whole tree' */
if (parent == TVI_ROOT)
parent = infoPtr->root;
/* Check for a valid handle to the parent item */
if (!TREEVIEW_ValidItem(infoPtr, parent))
{
ERR("invalid item hParent=%x\n", (INT)parent);
return FALSE;
}
if (pSort)
{
pfnCompare = (PFNDPACOMPARE)TREEVIEW_CallBackCompare;
lpCompare = (LPARAM)pSort;
}
else
{
pfnCompare = (PFNDPACOMPARE)TREEVIEW_SortOnName;
lpCompare = (LPARAM)infoPtr;
}
cChildren = TREEVIEW_CountChildren(infoPtr, parent);
/* Make sure there is something to sort */
if (cChildren > 1)
{
/* TREEVIEW_ITEM rechaining */
INT count = 0;
HTREEITEM item = 0;
HTREEITEM nextItem = 0;
HTREEITEM prevItem = 0;
HDPA sortList = TREEVIEW_BuildChildDPA(infoPtr, parent);
if (sortList == NULL)
return FALSE;
/* let DPA sort the list */
DPA_Sort(sortList, pfnCompare, lpCompare);
/* The order of DPA entries has been changed, so fixup the
* nextSibling and prevSibling pointers. */
item = (HTREEITEM)DPA_GetPtr(sortList, count++);
while ((nextItem = (HTREEITEM)DPA_GetPtr(sortList, count++)) != NULL)
{
/* link the two current item toghether */
item->nextSibling = nextItem;
nextItem->prevSibling = item;
if (prevItem == NULL)
{
/* this is the first item, update the parent */
parent->firstChild = item;
item->prevSibling = NULL;
}
else
{
/* fix the back chaining */
item->prevSibling = prevItem;
}
/* get ready for the next one */
prevItem = item;
item = nextItem;
}
/* the last item is pointed to by item and never has a sibling */
item->nextSibling = NULL;
parent->lastChild = item;
DPA_Destroy(sortList);
TREEVIEW_VerifyTree(infoPtr);
if (parent->state & TVIS_EXPANDED)
{
int visOrder = infoPtr->firstVisible->visibleOrder;
if (parent == infoPtr->root)
TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
else
TREEVIEW_RecalculateVisibleOrder(infoPtr, parent);
if (TREEVIEW_IsChildOf(parent, infoPtr->firstVisible))
{
TREEVIEW_ITEM *item;
for (item = infoPtr->root->firstChild; item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
if (item->visibleOrder == visOrder)
break;
}
TREEVIEW_SetFirstVisible(infoPtr, item, FALSE);
}
TREEVIEW_Invalidate(infoPtr, NULL);
}
return TRUE;
}
return FALSE;
}
/***************************************************************************
* Setup the treeview structure with regards of the sort method
* and sort the children of the TV item specified in lParam
*/
static LRESULT
TREEVIEW_SortChildrenCB(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPTVSORTCB pSort)
{
return TREEVIEW_Sort(infoPtr, wParam, pSort->hParent, pSort);
}
/***************************************************************************
* Sort the children of the TV item specified in lParam.
*/
static LRESULT
TREEVIEW_SortChildren(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
return TREEVIEW_Sort(infoPtr, (BOOL)wParam, (HTREEITEM)lParam, NULL);
}
/* Expansion/Collapse ***************************************************/
static BOOL
TREEVIEW_SendExpanding(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
UINT action)
{
return !TREEVIEW_SendTreeviewNotify(infoPtr,
(infoPtr->bNtfUnicode) ? TVN_ITEMEXPANDINGW :
TVN_ITEMEXPANDINGA,
action,
TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
| TVIF_IMAGE | TVIF_SELECTEDIMAGE,
0, wineItem);
}
static VOID
TREEVIEW_SendExpanded(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
UINT action)
{
TREEVIEW_SendTreeviewNotify(infoPtr,
(infoPtr->bNtfUnicode) ? TVN_ITEMEXPANDEDW :
TVN_ITEMEXPANDEDA,
action,
TVIF_HANDLE | TVIF_STATE | TVIF_PARAM
| TVIF_IMAGE | TVIF_SELECTEDIMAGE,
0, wineItem);
}
/* This corresponds to TVM_EXPAND with TVE_COLLAPSE.
* bRemoveChildren corresponds to TVE_COLLAPSERESET. */
static BOOL
TREEVIEW_Collapse(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
BOOL bRemoveChildren, BOOL bUser)
{
UINT action = TVE_COLLAPSE | (bRemoveChildren ? TVE_COLLAPSERESET : 0);
BOOL bSetSelection, bSetFirstVisible;
TRACE("TVE_COLLAPSE %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
if (!(wineItem->state & TVIS_EXPANDED) || wineItem->firstChild == NULL)
return FALSE;
if (bUser)
TREEVIEW_SendExpanding(infoPtr, wineItem, action);
wineItem->state &= ~TVIS_EXPANDED;
if (bUser)
TREEVIEW_SendExpanded(infoPtr, wineItem, action);
bSetSelection = (infoPtr->selectedItem != NULL
&& TREEVIEW_IsChildOf(wineItem, infoPtr->selectedItem));
bSetFirstVisible = (infoPtr->firstVisible != NULL
&& TREEVIEW_IsChildOf(wineItem, infoPtr->firstVisible));
if (bRemoveChildren)
{
TRACE("TVE_COLLAPSERESET\n");
wineItem->state &= ~TVIS_EXPANDEDONCE;
TREEVIEW_RemoveAllChildren(infoPtr, wineItem);
}
if (wineItem->firstChild)
{
TREEVIEW_ITEM *item, *sibling;
sibling = TREEVIEW_GetNextListItem(infoPtr, wineItem);
for (item = wineItem->firstChild; item != sibling;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
item->visibleOrder = -1;
}
}
TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
TREEVIEW_SetFirstVisible(infoPtr, bSetFirstVisible ? wineItem
: infoPtr->firstVisible, TRUE);
if (bSetSelection)
{
/* Don't call DoSelectItem, it sends notifications. */
if (TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
infoPtr->selectedItem->state &= ~TVIS_SELECTED;
wineItem->state |= TVIS_SELECTED;
infoPtr->selectedItem = wineItem;
TREEVIEW_EnsureVisible(infoPtr, wineItem, FALSE);
}
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
return TRUE;
}
static BOOL
TREEVIEW_Expand(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem,
BOOL bExpandPartial, BOOL bUser)
{
TRACE("\n");
if (!TREEVIEW_HasChildren(infoPtr, wineItem)
|| wineItem->state & TVIS_EXPANDED)
return FALSE;
TRACE("TVE_EXPAND %p %s\n", wineItem, TREEVIEW_ItemName(wineItem));
if (bUser || !(wineItem->state & TVIS_EXPANDEDONCE))
{
if (!TREEVIEW_SendExpanding(infoPtr, wineItem, TVE_EXPAND))
{
TRACE(" TVN_ITEMEXPANDING returned TRUE, exiting...\n");
return FALSE;
}
wineItem->state |= TVIS_EXPANDED;
TREEVIEW_SendExpanded(infoPtr, wineItem, TVE_EXPAND);
wineItem->state |= TVIS_EXPANDEDONCE;
}
else
{
/* this item has already been expanded */
wineItem->state |= TVIS_EXPANDED;
}
if (bExpandPartial)
FIXME("TVE_EXPANDPARTIAL not implemented\n");
TREEVIEW_RecalculateVisibleOrder(infoPtr, wineItem);
TREEVIEW_UpdateSubTree(infoPtr, wineItem);
TREEVIEW_UpdateScrollBars(infoPtr);
/* Scroll up so that as many children as possible are visible.
* This looses when expanding causes an HScroll bar to appear, but we
* don't know that yet, so the last item is obscured. */
if (wineItem->firstChild != NULL)
{
int nChildren = wineItem->lastChild->visibleOrder
- wineItem->firstChild->visibleOrder + 1;
int visible_pos = wineItem->visibleOrder
- infoPtr->firstVisible->visibleOrder;
int rows_below = TREEVIEW_GetVisibleCount(infoPtr) - visible_pos - 1;
if (visible_pos > 0 && nChildren > rows_below)
{
int scroll = nChildren - rows_below;
if (scroll > visible_pos)
scroll = visible_pos;
if (scroll > 0)
{
TREEVIEW_ITEM *newFirstVisible
= TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
scroll);
TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
}
}
}
TREEVIEW_Invalidate(infoPtr, NULL);
return TRUE;
}
static BOOL
TREEVIEW_Toggle(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *wineItem, BOOL bUser)
{
TRACE("\n");
if (wineItem->state & TVIS_EXPANDED)
return TREEVIEW_Collapse(infoPtr, wineItem, FALSE, bUser);
else
return TREEVIEW_Expand(infoPtr, wineItem, FALSE, bUser);
}
static VOID
TREEVIEW_ExpandAll(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
TREEVIEW_Expand(infoPtr, item, FALSE, TRUE);
for (item = item->firstChild; item != NULL; item = item->nextSibling)
{
if (TREEVIEW_HasChildren(infoPtr, item))
TREEVIEW_ExpandAll(infoPtr, item);
}
}
/* Note:If the specified item is the child of a collapsed parent item,
the parent's list of child items is (recursively) expanded to reveal the
specified item. This is mentioned for TREEVIEW_SelectItem; don't
know if it also applies here.
*/
static LRESULT
TREEVIEW_ExpandMsg(TREEVIEW_INFO *infoPtr, UINT flag, HTREEITEM wineItem)
{
if (!TREEVIEW_ValidItem(infoPtr, wineItem))
return 0;
TRACE("For (%s) item:%d, flags %x, state:%d\n",
TREEVIEW_ItemName(wineItem), flag,
TREEVIEW_GetItemIndex(infoPtr, wineItem), wineItem->state);
switch (flag & TVE_TOGGLE)
{
case TVE_COLLAPSE:
return TREEVIEW_Collapse(infoPtr, wineItem, flag & TVE_COLLAPSERESET,
FALSE);
case TVE_EXPAND:
return TREEVIEW_Expand(infoPtr, wineItem, flag & TVE_EXPANDPARTIAL,
FALSE);
case TVE_TOGGLE:
return TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
default:
return 0;
}
#if 0
TRACE("Exiting, Item %p state is now %d...\n", wineItem, wineItem->state);
#endif
}
/* Hit-Testing **********************************************************/
static TREEVIEW_ITEM *
TREEVIEW_HitTestPoint(TREEVIEW_INFO *infoPtr, POINT pt)
{
TREEVIEW_ITEM *wineItem;
LONG row;
if (!infoPtr->firstVisible)
return NULL;
row = pt.y / infoPtr->uItemHeight + infoPtr->firstVisible->visibleOrder;
for (wineItem = infoPtr->firstVisible; wineItem != NULL;
wineItem = TREEVIEW_GetNextListItem(infoPtr, wineItem))
{
if (row >= wineItem->visibleOrder
&& row < wineItem->visibleOrder + wineItem->iIntegral)
break;
}
return wineItem;
}
static LRESULT
TREEVIEW_HitTest(TREEVIEW_INFO *infoPtr, LPTVHITTESTINFO lpht)
{
TREEVIEW_ITEM *wineItem;
RECT rect;
UINT status;
LONG x, y;
lpht->hItem = 0;
GetClientRect(infoPtr->hwnd, &rect);
status = 0;
x = lpht->pt.x;
y = lpht->pt.y;
if (x < rect.left)
{
status |= TVHT_TOLEFT;
}
else if (x > rect.right)
{
status |= TVHT_TORIGHT;
}
if (y < rect.top)
{
status |= TVHT_ABOVE;
}
else if (y > rect.bottom)
{
status |= TVHT_BELOW;
}
if (status)
{
lpht->flags = status;
return (LRESULT)(HTREEITEM)NULL;
}
wineItem = TREEVIEW_HitTestPoint(infoPtr, lpht->pt);
if (!wineItem)
{
lpht->flags = TVHT_NOWHERE;
return (LRESULT)(HTREEITEM)NULL;
}
if (x >= wineItem->textOffset + wineItem->textWidth)
{
lpht->flags = TVHT_ONITEMRIGHT;
}
else if (x >= wineItem->textOffset)
{
lpht->flags = TVHT_ONITEMLABEL;
}
else if (x >= wineItem->imageOffset)
{
lpht->flags = TVHT_ONITEMICON;
}
else if (x >= wineItem->stateOffset)
{
lpht->flags = TVHT_ONITEMSTATEICON;
}
else if (x >= wineItem->linesOffset && infoPtr->dwStyle & TVS_HASBUTTONS)
{
lpht->flags = TVHT_ONITEMBUTTON;
}
else
{
lpht->flags = TVHT_ONITEMINDENT;
}
lpht->hItem = wineItem;
TRACE("(%ld,%ld):result %x\n", lpht->pt.x, lpht->pt.y, lpht->flags);
return (LRESULT)wineItem;
}
/* Item Label Editing ***************************************************/
static LRESULT
TREEVIEW_GetEditControl(TREEVIEW_INFO *infoPtr)
{
return (LRESULT)infoPtr->hwndEdit;
}
static LRESULT CALLBACK
TREEVIEW_Edit_SubclassProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
TREEVIEW_INFO *infoPtr;
BOOL bCancel = FALSE;
switch (uMsg)
{
case WM_PAINT:
{
LRESULT rc;
TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
TRACE("WM_PAINT start\n");
rc = CallWindowProcA(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
lParam);
TRACE("WM_PAINT done\n");
return rc;
}
case WM_KILLFOCUS:
{
TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
if (infoPtr->bIgnoreEditKillFocus)
return TRUE;
break;
}
case WM_GETDLGCODE:
return DLGC_WANTARROWS | DLGC_WANTALLKEYS;
case WM_KEYDOWN:
if (wParam == (WPARAM)VK_ESCAPE)
{
bCancel = TRUE;
break;
}
else if (wParam == (WPARAM)VK_RETURN)
{
break;
}
/* fall through */
default:
{
TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
return CallWindowProcA(infoPtr->wpEditOrig, hwnd, uMsg, wParam,
lParam);
}
}
/* Processing TVN_ENDLABELEDIT message could kill the focus */
/* eg. Using a messagebox */
infoPtr = TREEVIEW_GetInfoPtr(GetParent(hwnd));
infoPtr->bIgnoreEditKillFocus = TRUE;
TREEVIEW_EndEditLabelNow(infoPtr, bCancel || !infoPtr->bLabelChanged);
infoPtr->bIgnoreEditKillFocus = FALSE;
return 0;
}
/* should handle edit control messages here */
static LRESULT
TREEVIEW_Command(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
TRACE("%x %ld\n", wParam, lParam);
switch (HIWORD(wParam))
{
case EN_UPDATE:
{
/*
* Adjust the edit window size
*/
char buffer[1024];
TREEVIEW_ITEM *editItem = infoPtr->selectedItem;
HDC hdc = GetDC(infoPtr->hwndEdit);
SIZE sz;
int len;
HFONT hFont, hOldFont = 0;
infoPtr->bLabelChanged = TRUE;
len = GetWindowTextA(infoPtr->hwndEdit, buffer, sizeof(buffer));
/* Select font to get the right dimension of the string */
hFont = SendMessageA(infoPtr->hwndEdit, WM_GETFONT, 0, 0);
if (hFont != 0)
{
hOldFont = SelectObject(hdc, hFont);
}
if (GetTextExtentPoint32A(hdc, buffer, strlen(buffer), &sz))
{
TEXTMETRICA textMetric;
/* Add Extra spacing for the next character */
GetTextMetricsA(hdc, &textMetric);
sz.cx += (textMetric.tmMaxCharWidth * 2);
sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
sz.cx = min(sz.cx,
infoPtr->clientWidth - editItem->textOffset + 2);
SetWindowPos(infoPtr->hwndEdit,
HWND_TOP,
0,
0,
sz.cx,
editItem->rect.bottom - editItem->rect.top + 3,
SWP_NOMOVE | SWP_DRAWFRAME);
}
if (hFont != 0)
{
SelectObject(hdc, hOldFont);
}
ReleaseDC(infoPtr->hwnd, hdc);
break;
}
default:
return SendMessageA(GetParent(infoPtr->hwnd), WM_COMMAND, wParam, lParam);
}
return 0;
}
static HWND
TREEVIEW_EditLabelA(TREEVIEW_INFO *infoPtr, HTREEITEM hItem)
{
HWND hwnd = infoPtr->hwnd;
HWND hwndEdit;
SIZE sz;
TREEVIEW_ITEM *editItem = hItem;
HINSTANCE hinst = GetWindowLongA(hwnd, GWL_HINSTANCE);
HDC hdc;
HFONT hOldFont=0;
TEXTMETRICA textMetric;
TRACE("%x %p\n", (unsigned)hwnd, hItem);
if (!TREEVIEW_ValidItem(infoPtr, editItem))
return (HWND)NULL;
if (infoPtr->hwndEdit)
return infoPtr->hwndEdit;
infoPtr->bLabelChanged = FALSE;
/* Make sure that edit item is selected */
TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, hItem, TVC_UNKNOWN);
TREEVIEW_EnsureVisible(infoPtr, hItem, TRUE);
TREEVIEW_UpdateDispInfo(infoPtr, editItem, TVIF_TEXT);
hdc = GetDC(hwnd);
/* Select the font to get appropriate metric dimensions */
if (infoPtr->hFont != 0)
{
hOldFont = SelectObject(hdc, infoPtr->hFont);
}
/* Get string length in pixels */
GetTextExtentPoint32A(hdc, editItem->pszText, strlen(editItem->pszText),
&sz);
/* Add Extra spacing for the next character */
GetTextMetricsA(hdc, &textMetric);
sz.cx += (textMetric.tmMaxCharWidth * 2);
sz.cx = max(sz.cx, textMetric.tmMaxCharWidth * 3);
sz.cx = min(sz.cx, infoPtr->clientWidth - editItem->textOffset + 2);
if (infoPtr->hFont != 0)
{
SelectObject(hdc, hOldFont);
}
ReleaseDC(hwnd, hdc);
hwndEdit = CreateWindowExA(WS_EX_LEFT,
"EDIT",
0,
WS_CHILD | WS_BORDER | ES_AUTOHSCROLL |
WS_CLIPSIBLINGS | ES_WANTRETURN |
ES_LEFT, editItem->textOffset - 2,
editItem->rect.top - 1, sz.cx + 3,
editItem->rect.bottom -
editItem->rect.top + 3, hwnd, 0, hinst, 0);
/* FIXME: (HMENU)IDTVEDIT,pcs->hInstance,0); */
infoPtr->hwndEdit = hwndEdit;
/* Get a 2D border. */
SetWindowLongA(hwndEdit, GWL_EXSTYLE,
GetWindowLongA(hwndEdit, GWL_EXSTYLE) & ~WS_EX_CLIENTEDGE);
SetWindowLongA(hwndEdit, GWL_STYLE,
GetWindowLongA(hwndEdit, GWL_STYLE) | WS_BORDER);
SendMessageA(hwndEdit, WM_SETFONT, TREEVIEW_FontForItem(infoPtr, editItem),
FALSE);
infoPtr->wpEditOrig = (WNDPROC)SetWindowLongA(hwndEdit, GWL_WNDPROC,
(DWORD)
TREEVIEW_Edit_SubclassProc);
if (TREEVIEW_BeginLabelEditNotify(infoPtr, editItem))
{
DestroyWindow(hwndEdit);
infoPtr->hwndEdit = 0;
return (HWND)NULL;
}
infoPtr->selectedItem = hItem;
SetWindowTextA(hwndEdit, editItem->pszText);
SetFocus(hwndEdit);
SendMessageA(hwndEdit, EM_SETSEL, 0, -1);
ShowWindow(hwndEdit, SW_SHOW);
return hwndEdit;
}
static LRESULT
TREEVIEW_EndEditLabelNow(TREEVIEW_INFO *infoPtr, BOOL bCancel)
{
HWND hwnd = infoPtr->hwnd;
TREEVIEW_ITEM *editedItem = infoPtr->selectedItem;
NMTVDISPINFOA tvdi;
BOOL bCommit;
char tmpText[1024] = { '\0' };
int iLength = 0;
if (!infoPtr->hwndEdit)
return FALSE;
tvdi.hdr.hwndFrom = hwnd;
tvdi.hdr.idFrom = GetWindowLongA(hwnd, GWL_ID);
tvdi.hdr.code = TVN_ENDLABELEDITA;
tvdi.item.mask = 0;
tvdi.item.hItem = editedItem;
tvdi.item.state = editedItem->state;
tvdi.item.lParam = editedItem->lParam;
if (!bCancel)
{
iLength = GetWindowTextA(infoPtr->hwndEdit, tmpText, 1023);
if (iLength >= 1023)
{
ERR("Insuficient space to retrieve new item label\n");
}
tvdi.item.pszText = tmpText;
tvdi.item.cchTextMax = iLength + 1;
}
else
{
tvdi.item.pszText = NULL;
tvdi.item.cchTextMax = 0;
}
bCommit = (BOOL)TREEVIEW_SendRealNotify(infoPtr,
(WPARAM)tvdi.hdr.idFrom, (LPARAM)&tvdi);
if (!bCancel && bCommit) /* Apply the changes */
{
if (strcmp(tmpText, editedItem->pszText) != 0)
{
if (NULL == COMCTL32_ReAlloc(editedItem->pszText, iLength + 1))
{
ERR("OutOfMemory, cannot allocate space for label\n");
DestroyWindow(infoPtr->hwndEdit);
infoPtr->hwndEdit = 0;
return FALSE;
}
else
{
editedItem->cchTextMax = iLength + 1;
lstrcpyA(editedItem->pszText, tmpText);
}
}
}
ShowWindow(infoPtr->hwndEdit, SW_HIDE);
DestroyWindow(infoPtr->hwndEdit);
infoPtr->hwndEdit = 0;
return TRUE;
}
static LRESULT
TREEVIEW_HandleTimer(TREEVIEW_INFO *infoPtr, WPARAM wParam)
{
if (wParam != TV_EDIT_TIMER)
{
ERR("got unknown timer\n");
return 1;
}
KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
infoPtr->Timer &= ~TV_EDIT_TIMER_SET;
TREEVIEW_EditLabelA(infoPtr, infoPtr->selectedItem);
return 0;
}
/* Mouse Tracking/Drag **************************************************/
/***************************************************************************
* This is quite unusual piece of code, but that's how it's implemented in
* Windows.
*/
static LRESULT
TREEVIEW_TrackMouse(TREEVIEW_INFO *infoPtr, POINT pt)
{
INT cxDrag = GetSystemMetrics(SM_CXDRAG);
INT cyDrag = GetSystemMetrics(SM_CYDRAG);
RECT r;
MSG msg;
r.top = pt.y - cyDrag;
r.left = pt.x - cxDrag;
r.bottom = pt.y + cyDrag;
r.right = pt.x + cxDrag;
SetCapture(infoPtr->hwnd);
while (1)
{
if (PeekMessageA(&msg, 0, 0, 0, PM_REMOVE | PM_NOYIELD))
{
if (msg.message == WM_MOUSEMOVE)
{
pt.x = SLOWORD(msg.lParam);
pt.y = SHIWORD(msg.lParam);
if (PtInRect(&r, pt))
continue;
else
{
ReleaseCapture();
return 1;
}
}
else if (msg.message >= WM_LBUTTONDOWN &&
msg.message <= WM_RBUTTONDBLCLK)
{
if (msg.message == WM_RBUTTONUP)
TREEVIEW_RButtonUp(infoPtr, &pt);
break;
}
DispatchMessageA(&msg);
}
if (GetCapture() != infoPtr->hwnd)
return 0;
}
ReleaseCapture();
return 0;
}
static LRESULT
TREEVIEW_LButtonDoubleClick(TREEVIEW_INFO *infoPtr, LPARAM lParam)
{
TREEVIEW_ITEM *wineItem;
TVHITTESTINFO hit;
TRACE("\n");
SetFocus(infoPtr->hwnd);
if (infoPtr->Timer & TV_EDIT_TIMER_SET)
{
/* If there is pending 'edit label' event - kill it now */
KillTimer(infoPtr->hwnd, TV_EDIT_TIMER);
}
hit.pt.x = SLOWORD(lParam);
hit.pt.y = SHIWORD(lParam);
wineItem = (TREEVIEW_ITEM *)TREEVIEW_HitTest(infoPtr, &hit);
if (!wineItem)
return 0;
TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, wineItem));
if (TREEVIEW_SendSimpleNotify(infoPtr, NM_DBLCLK) == FALSE)
{ /* FIXME! */
switch (hit.flags)
{
case TVHT_ONITEMRIGHT:
/* FIXME: we should not have sent NM_DBLCLK in this case. */
break;
case TVHT_ONITEMINDENT:
if (!(infoPtr->dwStyle & TVS_HASLINES))
{
break;
}
else
{
int level = hit.pt.x / infoPtr->uIndent;
if (!(infoPtr->dwStyle & TVS_LINESATROOT)) level++;
while (wineItem->iLevel > level)
{
wineItem = wineItem->parent;
}
/* fall through */
}
case TVHT_ONITEMLABEL:
case TVHT_ONITEMICON:
case TVHT_ONITEMBUTTON:
TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
break;
case TVHT_ONITEMSTATEICON:
if (infoPtr->dwStyle & TVS_CHECKBOXES)
TREEVIEW_ToggleItemState(infoPtr, wineItem);
else
TREEVIEW_Toggle(infoPtr, wineItem, TRUE);
break;
}
}
return TRUE;
}
static LRESULT
TREEVIEW_LButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
{
HWND hwnd = infoPtr->hwnd;
TVHITTESTINFO ht;
BOOL bTrack;
HTREEITEM tempItem;
/* If Edit control is active - kill it and return.
* The best way to do it is to set focus to itself.
* Edit control subclassed procedure will automatically call
* EndEditLabelNow.
*/
if (infoPtr->hwndEdit)
{
SetFocus(hwnd);
return 0;
}
ht.pt.x = SLOWORD(lParam);
ht.pt.y = SHIWORD(lParam);
TREEVIEW_HitTest(infoPtr, &ht);
TRACE("item %d\n", TREEVIEW_GetItemIndex(infoPtr, ht.hItem));
/* update focusedItem and redraw both items */
if(ht.hItem && (ht.flags & TVHT_ONITEM))
{
infoPtr->focusedItem = ht.hItem;
InvalidateRect(hwnd, &(((HTREEITEM)(ht.hItem))->rect), TRUE);
if(infoPtr->selectedItem)
InvalidateRect(hwnd, &(infoPtr->selectedItem->rect), TRUE);
}
bTrack = (ht.flags & TVHT_ONITEM)
&& !(infoPtr->dwStyle & TVS_DISABLEDRAGDROP);
/* Send NM_CLICK right away */
if (!bTrack)
if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
goto setfocus;
if (ht.flags & TVHT_ONITEMBUTTON)
{
TREEVIEW_Toggle(infoPtr, ht.hItem, TRUE);
goto setfocus;
}
else if (bTrack)
{ /* if TREEVIEW_TrackMouse == 1 dragging occurred and the cursor left the dragged item's rectangle */
if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
{
TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINDRAGA, ht.hItem,
ht.pt);
infoPtr->dropItem = ht.hItem;
/* clean up focusedItem as we dragged and won't select this item */
if(infoPtr->focusedItem)
{
/* refresh the item that was focused */
tempItem = infoPtr->focusedItem;
infoPtr->focusedItem = 0;
InvalidateRect(infoPtr->hwnd, &tempItem->rect, TRUE);
/* refresh the selected item to return the filled background */
InvalidateRect(infoPtr->hwnd, &(infoPtr->selectedItem->rect), TRUE);
}
return 0;
}
}
if (TREEVIEW_SendSimpleNotify(infoPtr, NM_CLICK))
goto setfocus;
/*
* If the style allows editing and the node is already selected
* and the click occurred on the item label...
*/
if ((infoPtr->dwStyle & TVS_EDITLABELS) &&
(ht.flags & TVHT_ONITEMLABEL) && (infoPtr->selectedItem == ht.hItem))
{
if (infoPtr->Timer & TV_EDIT_TIMER_SET)
KillTimer(hwnd, TV_EDIT_TIMER);
SetTimer(hwnd, TV_EDIT_TIMER, GetDoubleClickTime(), 0);
infoPtr->Timer |= TV_EDIT_TIMER_SET;
}
else if (ht.flags & TVHT_ONITEM) /* select the item if the hit was inside of the icon or text */
{
/*
* if we are TVS_SINGLEEXPAND then we want this single click to
* do a bunch of things.
*/
if((infoPtr->dwStyle & TVS_SINGLEEXPAND) &&
(infoPtr->hwndEdit == 0))
{
TREEVIEW_ITEM *SelItem;
/*
* Send the notification
*/
TREEVIEW_SendTreeviewNotify(infoPtr, TVN_SINGLEEXPAND, TVIF_HANDLE | TVIF_PARAM,
0, ht.hItem, 0);
/*
* Close the previous selection all the way to the root
* as long as the new selection is not a child
*/
if((infoPtr->selectedItem)
&& (infoPtr->selectedItem != ht.hItem))
{
BOOL closeit = TRUE;
SelItem = ht.hItem;
/* determine if the hitItem is a child of the currently selected item */
while(closeit && SelItem && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
{
closeit = (SelItem != infoPtr->selectedItem);
SelItem = SelItem->parent;
}
if(closeit)
{
if(TREEVIEW_ValidItem(infoPtr, infoPtr->selectedItem))
SelItem = infoPtr->selectedItem;
while(SelItem && (SelItem != ht.hItem) && TREEVIEW_ValidItem(infoPtr, SelItem) && (SelItem != infoPtr->root))
{
TREEVIEW_Collapse(infoPtr, SelItem, FALSE, FALSE);
SelItem = SelItem->parent;
}
}
}
/*
* Expand the current item
*/
TREEVIEW_Expand(infoPtr, ht.hItem, TVE_TOGGLE, FALSE);
}
/* Select the current item */
TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, ht.hItem, TVC_BYMOUSE);
}
else if (ht.flags & TVHT_ONITEMSTATEICON)
{
/* TVS_CHECKBOXES requires us to toggle the current state */
if (infoPtr->dwStyle & TVS_CHECKBOXES)
TREEVIEW_ToggleItemState(infoPtr, ht.hItem);
}
setfocus:
SetFocus(hwnd);
return 0;
}
static LRESULT
TREEVIEW_RButtonDown(TREEVIEW_INFO *infoPtr, LPARAM lParam)
{
TVHITTESTINFO ht;
if (infoPtr->hwndEdit)
{
SetFocus(infoPtr->hwnd);
return 0;
}
ht.pt.x = SLOWORD(lParam);
ht.pt.y = SHIWORD(lParam);
TREEVIEW_HitTest(infoPtr, &ht);
if (TREEVIEW_TrackMouse(infoPtr, ht.pt))
{
if (ht.hItem)
{
TREEVIEW_SendTreeviewDnDNotify(infoPtr, TVN_BEGINRDRAGA, ht.hItem,
ht.pt);
infoPtr->dropItem = ht.hItem;
}
}
else
{
SetFocus(infoPtr->hwnd);
TREEVIEW_SendSimpleNotify(infoPtr, NM_RCLICK);
}
return 0;
}
static LRESULT
TREEVIEW_RButtonUp(TREEVIEW_INFO *infoPtr, LPPOINT pPt)
{
return 0;
}
static LRESULT
TREEVIEW_CreateDragImage(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
TREEVIEW_ITEM *dragItem = (HTREEITEM)lParam;
INT cx, cy;
HDC hdc, htopdc;
HWND hwtop;
HBITMAP hbmp, hOldbmp;
SIZE size;
RECT rc;
HFONT hOldFont;
TRACE("\n");
if (!(infoPtr->himlNormal))
return 0;
if (!dragItem || !TREEVIEW_ValidItem(infoPtr, dragItem))
return 0;
TREEVIEW_UpdateDispInfo(infoPtr, dragItem, TVIF_TEXT);
hwtop = GetDesktopWindow();
htopdc = GetDC(hwtop);
hdc = CreateCompatibleDC(htopdc);
hOldFont = SelectObject(hdc, infoPtr->hFont);
GetTextExtentPoint32A(hdc, dragItem->pszText, lstrlenA(dragItem->pszText),
&size);
TRACE("%ld %ld %s %d\n", size.cx, size.cy, dragItem->pszText,
lstrlenA(dragItem->pszText));
hbmp = CreateCompatibleBitmap(htopdc, size.cx, size.cy);
hOldbmp = SelectObject(hdc, hbmp);
ImageList_GetIconSize(infoPtr->himlNormal, &cx, &cy);
size.cx += cx;
if (cy > size.cy)
size.cy = cy;
infoPtr->dragList = ImageList_Create(size.cx, size.cy, ILC_COLOR, 10, 10);
ImageList_Draw(infoPtr->himlNormal, dragItem->iImage, hdc, 0, 0,
ILD_NORMAL);
/*
ImageList_GetImageInfo (infoPtr->himlNormal, dragItem->hItem, &iminfo);
ImageList_AddMasked (infoPtr->dragList, iminfo.hbmImage, CLR_DEFAULT);
*/
/* draw item text */
SetRect(&rc, cx, 0, size.cx, size.cy);
DrawTextA(hdc, dragItem->pszText, lstrlenA(dragItem->pszText), &rc,
DT_LEFT);
SelectObject(hdc, hOldFont);
SelectObject(hdc, hOldbmp);
ImageList_Add(infoPtr->dragList, hbmp, 0);
DeleteDC(hdc);
DeleteObject(hbmp);
ReleaseDC(hwtop, htopdc);
return (LRESULT)infoPtr->dragList;
}
/* Selection ************************************************************/
static LRESULT
TREEVIEW_DoSelectItem(TREEVIEW_INFO *infoPtr, INT action, HTREEITEM newSelect,
INT cause)
{
TREEVIEW_ITEM *prevSelect;
RECT rcFocused;
assert(newSelect == NULL || TREEVIEW_ValidItem(infoPtr, newSelect));
TRACE("Entering item %p (%s), flag %x, cause %x, state %d\n",
newSelect, TREEVIEW_ItemName(newSelect), action, cause,
newSelect ? newSelect->state : 0);
/* reset and redraw focusedItem if focusedItem was set so we don't */
/* have to worry about the previously focused item when we set a new one */
if(infoPtr->focusedItem)
{
rcFocused = (infoPtr->focusedItem)->rect;
infoPtr->focusedItem = 0;
InvalidateRect(infoPtr->hwnd, &rcFocused, TRUE);
}
switch (action)
{
case TVGN_CARET:
prevSelect = infoPtr->selectedItem;
if (prevSelect == newSelect)
return FALSE;
if (TREEVIEW_SendTreeviewNotify(infoPtr,
TVN_SELCHANGINGA,
cause,
TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
prevSelect,
newSelect))
return FALSE;
if (prevSelect)
prevSelect->state &= ~TVIS_SELECTED;
if (newSelect)
newSelect->state |= TVIS_SELECTED;
infoPtr->selectedItem = newSelect;
TREEVIEW_EnsureVisible(infoPtr, infoPtr->selectedItem, FALSE);
TREEVIEW_SendTreeviewNotify(infoPtr,
TVN_SELCHANGEDA,
cause,
TVIF_HANDLE | TVIF_STATE | TVIF_PARAM,
prevSelect,
newSelect);
TREEVIEW_Invalidate(infoPtr, prevSelect);
TREEVIEW_Invalidate(infoPtr, newSelect);
break;
case TVGN_DROPHILITE:
prevSelect = infoPtr->dropItem;
if (prevSelect)
prevSelect->state &= ~TVIS_DROPHILITED;
infoPtr->dropItem = newSelect;
if (newSelect)
newSelect->state |= TVIS_DROPHILITED;
TREEVIEW_Invalidate(infoPtr, prevSelect);
TREEVIEW_Invalidate(infoPtr, newSelect);
break;
case TVGN_FIRSTVISIBLE:
TREEVIEW_EnsureVisible(infoPtr, newSelect, FALSE);
TREEVIEW_SetFirstVisible(infoPtr, newSelect, TRUE);
TREEVIEW_Invalidate(infoPtr, NULL);
break;
}
TRACE("Leaving state %d\n", newSelect ? newSelect->state : 0);
return TRUE;
}
/* FIXME: handle NM_KILLFOCUS etc */
static LRESULT
TREEVIEW_SelectItem(TREEVIEW_INFO *infoPtr, INT wParam, HTREEITEM item)
{
if (item != NULL && !TREEVIEW_ValidItem(infoPtr, item))
return FALSE;
TRACE("%p (%s) %d\n", item, TREEVIEW_ItemName(item), wParam);
if (!TREEVIEW_DoSelectItem(infoPtr, wParam, item, TVC_UNKNOWN))
return FALSE;
return TRUE;
}
/*************************************************************************
* TREEVIEW_ProcessLetterKeys
*
* Processes keyboard messages generated by pressing the letter keys
* on the keyboard.
* What this does is perform a case insensitive search from the
* current position with the following quirks:
* - If two chars or more are pressed in quick succession we search
* for the corresponding string (e.g. 'abc').
* - If there is a delay we wipe away the current search string and
* restart with just that char.
* - If the user keeps pressing the same character, whether slowly or
* fast, so that the search string is entirely composed of this
* character ('aaaaa' for instance), then we search for first item
* that starting with that character.
* - If the user types the above character in quick succession, then
* we must also search for the corresponding string ('aaaaa'), and
* go to that string if there is a match.
*
* RETURNS
*
* Zero.
*
* BUGS
*
* - The current implementation has a list of characters it will
* accept and it ignores averything else. In particular it will
* ignore accentuated characters which seems to match what
* Windows does. But I'm not sure it makes sense to follow
* Windows there.
* - We don't sound a beep when the search fails.
* - The search should start from the focused item, not from the selected
* item. One reason for this is to allow for multiple selections in trees.
* But currently infoPtr->focusedItem does not seem very usable.
*
* SEE ALSO
*
* TREEVIEW_ProcessLetterKeys
*/
static INT TREEVIEW_ProcessLetterKeys(
HWND hwnd, /* handle to the window */
WPARAM charCode, /* the character code, the actual character */
LPARAM keyData /* key data */
)
{
TREEVIEW_INFO *infoPtr;
HTREEITEM nItem;
HTREEITEM endidx,idx;
TVITEMEXA item;
CHAR buffer[MAX_PATH];
DWORD timestamp,elapsed;
/* simple parameter checking */
if (!hwnd || !charCode || !keyData)
return 0;
infoPtr=(TREEVIEW_INFO*)GetWindowLongA(hwnd, 0);
if (!infoPtr)
return 0;
/* only allow the valid WM_CHARs through */
if (!isalnum(charCode) &&
charCode != '.' && charCode != '`' && charCode != '!' &&
charCode != '@' && charCode != '#' && charCode != '$' &&
charCode != '%' && charCode != '^' && charCode != '&' &&
charCode != '*' && charCode != '(' && charCode != ')' &&
charCode != '-' && charCode != '_' && charCode != '+' &&
charCode != '=' && charCode != '\\'&& charCode != ']' &&
charCode != '}' && charCode != '[' && charCode != '{' &&
charCode != '/' && charCode != '?' && charCode != '>' &&
charCode != '<' && charCode != ',' && charCode != '~')
return 0;
/* compute how much time elapsed since last keypress */
timestamp = GetTickCount();
if (timestamp > infoPtr->lastKeyPressTimestamp) {
elapsed=timestamp-infoPtr->lastKeyPressTimestamp;
} else {
elapsed=infoPtr->lastKeyPressTimestamp-timestamp;
}
/* update the search parameters */
infoPtr->lastKeyPressTimestamp=timestamp;
if (elapsed < KEY_DELAY) {
if (infoPtr->nSearchParamLength < sizeof(infoPtr->szSearchParam)) {
infoPtr->szSearchParam[infoPtr->nSearchParamLength++]=charCode;
}
if (infoPtr->charCode != charCode) {
infoPtr->charCode=charCode=0;
}
} else {
infoPtr->charCode=charCode;
infoPtr->szSearchParam[0]=charCode;
infoPtr->nSearchParamLength=1;
/* Redundant with the 1 char string */
charCode=0;
}
/* and search from the current position */
nItem=NULL;
if (infoPtr->selectedItem != NULL) {
endidx=infoPtr->selectedItem;
/* if looking for single character match,
* then we must always move forward
*/
if (infoPtr->nSearchParamLength == 1)
idx=TREEVIEW_GetNextListItem(infoPtr,endidx);
else
idx=endidx;
} else {
endidx=NULL;
idx=infoPtr->root->firstChild;
}
do {
if (idx == NULL) {
if (endidx == NULL)
break;
idx=infoPtr->root->firstChild;
}
/* get item */
ZeroMemory(&item, sizeof(item));
item.mask = TVIF_TEXT;
item.hItem = idx;
item.pszText = buffer;
item.cchTextMax = sizeof(buffer);
TREEVIEW_GetItemA( infoPtr, &item );
/* check for a match */
if (strncasecmp(item.pszText,infoPtr->szSearchParam,infoPtr->nSearchParamLength) == 0) {
nItem=idx;
break;
} else if ( (charCode != 0) && (nItem == NULL) &&
(nItem != infoPtr->selectedItem) &&
(strncasecmp(item.pszText,infoPtr->szSearchParam,1) == 0) ) {
/* This would work but we must keep looking for a longer match */
nItem=idx;
}
idx=TREEVIEW_GetNextListItem(infoPtr,idx);
} while (idx != endidx);
if (nItem != NULL) {
if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, nItem, TVC_BYKEYBOARD)) {
TREEVIEW_EnsureVisible(infoPtr, nItem, FALSE);
}
}
return 0;
}
/* Scrolling ************************************************************/
static LRESULT
TREEVIEW_EnsureVisible(TREEVIEW_INFO *infoPtr, HTREEITEM item, BOOL bHScroll)
{
HTREEITEM newFirstVisible = NULL;
int visible_pos;
if (!TREEVIEW_ValidItem(infoPtr, item))
return FALSE;
if (!ISVISIBLE(item))
{
/* Expand parents as necessary. */
HTREEITEM parent;
/* see if we are trying to ensure that root is vislble */
if((item != infoPtr->root) && TREEVIEW_ValidItem(infoPtr, item))
parent = item->parent;
else
parent = item; /* this item is the topmost item */
while (parent != infoPtr->root)
{
if (!(parent->state & TVIS_EXPANDED))
TREEVIEW_Expand(infoPtr, parent, FALSE, FALSE);
parent = parent->parent;
}
}
TRACE("%p (%s) %ld - %ld\n", item, TREEVIEW_ItemName(item), item->visibleOrder,
infoPtr->firstVisible->visibleOrder);
visible_pos = item->visibleOrder - infoPtr->firstVisible->visibleOrder;
if (visible_pos < 0)
{
/* item is before the start of the list: put it at the top. */
newFirstVisible = item;
}
else if (visible_pos >= TREEVIEW_GetVisibleCount(infoPtr)
/* Sometimes, before we are displayed, GVC is 0, causing us to
* spuriously scroll up. */
&& visible_pos > 0)
{
/* item is past the end of the list. */
int scroll = visible_pos - TREEVIEW_GetVisibleCount(infoPtr);
newFirstVisible = TREEVIEW_GetListItem(infoPtr, infoPtr->firstVisible,
scroll + 1);
}
if (bHScroll)
{
/* Scroll window so item's text is visible as much as possible */
/* Calculation of amount of extra space is taken from EditLabel code */
INT pos, x;
TEXTMETRICA textMetric;
HDC hdc = GetWindowDC(infoPtr->hwnd);
x = item->textWidth;
GetTextMetricsA(hdc, &textMetric);
ReleaseDC(infoPtr->hwnd, hdc);
x += (textMetric.tmMaxCharWidth * 2);
x = max(x, textMetric.tmMaxCharWidth * 3);
if (item->textOffset < 0)
pos = item->textOffset;
else if (item->textOffset + x > infoPtr->clientWidth)
{
if (x > infoPtr->clientWidth)
pos = item->textOffset;
else
pos = item->textOffset + x - infoPtr->clientWidth;
}
else
pos = 0;
TREEVIEW_HScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, infoPtr->scrollX + pos));
}
if (newFirstVisible != NULL && newFirstVisible != infoPtr->firstVisible)
{
TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible, TRUE);
return TRUE;
}
return FALSE;
}
static VOID
TREEVIEW_SetFirstVisible(TREEVIEW_INFO *infoPtr,
TREEVIEW_ITEM *newFirstVisible,
BOOL bUpdateScrollPos)
{
int gap_size;
TRACE("%p: %s\n", newFirstVisible, TREEVIEW_ItemName(newFirstVisible));
if (newFirstVisible != NULL)
{
/* Prevent an empty gap from appearing at the bottom... */
gap_size = TREEVIEW_GetVisibleCount(infoPtr)
- infoPtr->maxVisibleOrder + newFirstVisible->visibleOrder;
if (gap_size > 0)
{
newFirstVisible = TREEVIEW_GetListItem(infoPtr, newFirstVisible,
-gap_size);
/* ... unless we just don't have enough items. */
if (newFirstVisible == NULL)
newFirstVisible = infoPtr->root->firstChild;
}
}
if (infoPtr->firstVisible != newFirstVisible)
{
if (infoPtr->firstVisible == NULL || newFirstVisible == NULL)
{
infoPtr->firstVisible = newFirstVisible;
TREEVIEW_Invalidate(infoPtr, NULL);
}
else
{
TREEVIEW_ITEM *item;
int scroll = infoPtr->uItemHeight *
(infoPtr->firstVisible->visibleOrder
- newFirstVisible->visibleOrder);
infoPtr->firstVisible = newFirstVisible;
for (item = infoPtr->root->firstChild; item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
item->rect.top += scroll;
item->rect.bottom += scroll;
}
if (bUpdateScrollPos)
SetScrollPos(infoPtr->hwnd, SB_VERT,
newFirstVisible->visibleOrder, TRUE);
ScrollWindow(infoPtr->hwnd, 0, scroll, NULL, NULL);
UpdateWindow(infoPtr->hwnd);
}
}
}
/************************************************************************
* VScroll is always in units of visible items. i.e. we always have a
* visible item aligned to the top of the control. (Unless we have no
* items at all.)
*/
static LRESULT
TREEVIEW_VScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
{
TREEVIEW_ITEM *oldFirstVisible = infoPtr->firstVisible;
TREEVIEW_ITEM *newFirstVisible = NULL;
int nScrollCode = LOWORD(wParam);
TRACE("wp %x\n", wParam);
if (!(infoPtr->uInternalStatus & TV_VSCROLL))
return 0;
if (infoPtr->hwndEdit)
SetFocus(infoPtr->hwnd);
if (!oldFirstVisible)
{
assert(infoPtr->root->firstChild == NULL);
return 0;
}
switch (nScrollCode)
{
case SB_TOP:
newFirstVisible = infoPtr->root->firstChild;
break;
case SB_BOTTOM:
newFirstVisible = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
break;
case SB_LINEUP:
newFirstVisible = TREEVIEW_GetPrevListItem(infoPtr, oldFirstVisible);
break;
case SB_LINEDOWN:
newFirstVisible = TREEVIEW_GetNextListItem(infoPtr, oldFirstVisible);
break;
case SB_PAGEUP:
newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
-max(1, TREEVIEW_GetVisibleCount(infoPtr)));
break;
case SB_PAGEDOWN:
newFirstVisible = TREEVIEW_GetListItem(infoPtr, oldFirstVisible,
max(1, TREEVIEW_GetVisibleCount(infoPtr)));
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
newFirstVisible = TREEVIEW_GetListItem(infoPtr,
infoPtr->root->firstChild,
(LONG)(SHORT)HIWORD(wParam));
break;
case SB_ENDSCROLL:
return 0;
}
if (newFirstVisible != NULL)
{
if (newFirstVisible != oldFirstVisible)
TREEVIEW_SetFirstVisible(infoPtr, newFirstVisible,
nScrollCode != SB_THUMBTRACK);
else if (nScrollCode == SB_THUMBPOSITION)
SetScrollPos(infoPtr->hwnd, SB_VERT,
newFirstVisible->visibleOrder, TRUE);
}
return 0;
}
static LRESULT
TREEVIEW_HScroll(TREEVIEW_INFO *infoPtr, WPARAM wParam)
{
int maxWidth;
int scrollX = infoPtr->scrollX;
int nScrollCode = LOWORD(wParam);
TRACE("wp %x\n", wParam);
if (!(infoPtr->uInternalStatus & TV_HSCROLL))
return FALSE;
if (infoPtr->hwndEdit)
SetFocus(infoPtr->hwnd);
maxWidth = infoPtr->treeWidth - infoPtr->clientWidth;
/* shall never occur */
if (maxWidth <= 0)
{
scrollX = 0;
goto scroll;
}
switch (nScrollCode)
{
case SB_LINELEFT:
scrollX -= infoPtr->uItemHeight;
break;
case SB_LINERIGHT:
scrollX += infoPtr->uItemHeight;
break;
case SB_PAGELEFT:
scrollX -= infoPtr->clientWidth;
break;
case SB_PAGERIGHT:
scrollX += infoPtr->clientWidth;
break;
case SB_THUMBTRACK:
case SB_THUMBPOSITION:
scrollX = (int)(SHORT)HIWORD(wParam);
break;
case SB_ENDSCROLL:
return 0;
}
if (scrollX > maxWidth)
scrollX = maxWidth;
else if (scrollX < 0)
scrollX = 0;
scroll:
if (scrollX != infoPtr->scrollX)
{
TREEVIEW_ITEM *item;
LONG scroll_pixels = infoPtr->scrollX - scrollX;
for (item = infoPtr->root->firstChild; item != NULL;
item = TREEVIEW_GetNextListItem(infoPtr, item))
{
item->linesOffset += scroll_pixels;
item->stateOffset += scroll_pixels;
item->imageOffset += scroll_pixels;
item->textOffset += scroll_pixels;
}
ScrollWindow(infoPtr->hwnd, scroll_pixels, 0, NULL, NULL);
infoPtr->scrollX = scrollX;
UpdateWindow(infoPtr->hwnd);
}
if (nScrollCode != SB_THUMBTRACK)
SetScrollPos(infoPtr->hwnd, SB_HORZ, scrollX, TRUE);
return 0;
}
static LRESULT
TREEVIEW_MouseWheel(TREEVIEW_INFO *infoPtr, WPARAM wParam)
{
short gcWheelDelta;
UINT pulScrollLines = 3;
if (infoPtr->firstVisible == NULL)
return TRUE;
SystemParametersInfoW(SPI_GETWHEELSCROLLLINES, 0, &pulScrollLines, 0);
gcWheelDelta = -(short)HIWORD(wParam);
pulScrollLines *= (gcWheelDelta / WHEEL_DELTA);
if (abs(gcWheelDelta) >= WHEEL_DELTA && pulScrollLines)
{
int newDy = infoPtr->firstVisible->visibleOrder + pulScrollLines;
int maxDy = infoPtr->maxVisibleOrder;
if (newDy > maxDy)
newDy = maxDy;
if (newDy < 0)
newDy = 0;
TREEVIEW_VScroll(infoPtr, MAKEWPARAM(SB_THUMBPOSITION, newDy));
}
return TRUE;
}
/* Create/Destroy *******************************************************/
static LRESULT
TREEVIEW_Create(HWND hwnd)
{
RECT rcClient;
TREEVIEW_INFO *infoPtr;
TRACE("wnd %x, style %lx\n", hwnd, GetWindowLongA(hwnd, GWL_STYLE));
infoPtr = (TREEVIEW_INFO *)COMCTL32_Alloc(sizeof(TREEVIEW_INFO));
if (infoPtr == NULL)
{
ERR("could not allocate info memory!\n");
return 0;
}
SetWindowLongA(hwnd, 0, (DWORD)infoPtr);
infoPtr->hwnd = hwnd;
infoPtr->dwStyle = GetWindowLongA(hwnd, GWL_STYLE);
infoPtr->uInternalStatus = 0;
infoPtr->Timer = 0;
infoPtr->uNumItems = 0;
infoPtr->cdmode = 0;
infoPtr->uScrollTime = 300; /* milliseconds */
infoPtr->bRedraw = TRUE;
GetClientRect(hwnd, &rcClient);
/* No scroll bars yet. */
infoPtr->clientWidth = rcClient.right;
infoPtr->clientHeight = rcClient.bottom;
infoPtr->treeWidth = 0;
infoPtr->treeHeight = 0;
infoPtr->uIndent = 19;
infoPtr->selectedItem = 0;
infoPtr->focusedItem = 0;
/* hotItem? */
infoPtr->firstVisible = 0;
infoPtr->maxVisibleOrder = 0;
infoPtr->dropItem = 0;
infoPtr->insertMarkItem = 0;
infoPtr->insertBeforeorAfter = 0;
/* dragList */
infoPtr->scrollX = 0;
infoPtr->clrBk = GetSysColor(COLOR_WINDOW);
infoPtr->clrText = -1; /* use system color */
infoPtr->clrLine = RGB(128, 128, 128);
infoPtr->clrInsertMark = GetSysColor(COLOR_BTNTEXT);
/* hwndToolTip */
infoPtr->hwndEdit = 0;
infoPtr->wpEditOrig = NULL;
infoPtr->bIgnoreEditKillFocus = FALSE;
infoPtr->bLabelChanged = FALSE;
infoPtr->himlNormal = NULL;
infoPtr->himlState = NULL;
infoPtr->normalImageWidth = 0;
infoPtr->normalImageHeight = 0;
infoPtr->stateImageWidth = 0;
infoPtr->stateImageHeight = 0;
infoPtr->items = DPA_Create(16);
infoPtr->hFont = GetStockObject(DEFAULT_GUI_FONT);
infoPtr->hBoldFont = TREEVIEW_CreateBoldFont(infoPtr->hFont);
infoPtr->uItemHeight = TREEVIEW_NaturalHeight(infoPtr);
infoPtr->root = TREEVIEW_AllocateItem(infoPtr);
infoPtr->root->state = TVIS_EXPANDED;
infoPtr->root->iLevel = -1;
infoPtr->root->visibleOrder = -1;
infoPtr->hwndNotify = GetParent(hwnd);
#if 0
infoPtr->bTransparent = ( GetWindowLongA( hwnd, GWL_STYLE) & TBSTYLE_FLAT);
#endif
infoPtr->hwndToolTip = 0;
infoPtr->bUnicode = IsWindowUnicode (hwnd);
/* Determine what type of notify should be issued */
/* sets infoPtr->bNtfUnicode */
TREEVIEW_NotifyFormat(infoPtr, 0, NF_REQUERY);
if (!(infoPtr->dwStyle & TVS_NOTOOLTIPS))
infoPtr->hwndToolTip = COMCTL32_CreateToolTip(hwnd);
if (infoPtr->dwStyle & TVS_CHECKBOXES)
{
RECT rc;
HBITMAP hbm, hbmOld;
HDC hdc;
int nIndex;
infoPtr->himlState =
ImageList_Create(16, 16, ILC_COLOR | ILC_MASK, 3, 0);
hdc = CreateCompatibleDC(0);
hbm = CreateCompatibleBitmap(hdc, 48, 16);
hbmOld = SelectObject(hdc, hbm);
rc.left = 0; rc.top = 0;
rc.right = 48; rc.bottom = 16;
FillRect(hdc, &rc, (HBRUSH)(COLOR_WINDOW+1));
rc.left = 18; rc.top = 2;
rc.right = 30; rc.bottom = 14;
DrawFrameControl(hdc, &rc, DFC_BUTTON,
DFCS_BUTTONCHECK|DFCS_FLAT);
rc.left = 34; rc.right = 46;
DrawFrameControl(hdc, &rc, DFC_BUTTON,
DFCS_BUTTONCHECK|DFCS_FLAT|DFCS_CHECKED);
nIndex = ImageList_AddMasked(infoPtr->himlState, hbm,
GetSysColor(COLOR_WINDOW));
TRACE("chckbox index %d\n", nIndex);
SelectObject(hdc, hbmOld);
DeleteObject(hbm);
DeleteDC(hdc);
infoPtr->stateImageWidth = 16;
infoPtr->stateImageHeight = 16;
}
return 0;
}
static LRESULT
TREEVIEW_Destroy(TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
TREEVIEW_RemoveTree(infoPtr);
/* tool tip is automatically destroyed: we are its owner */
/* Restore original wndproc */
if (infoPtr->hwndEdit)
SetWindowLongA(infoPtr->hwndEdit, GWL_WNDPROC,
(LONG)infoPtr->wpEditOrig);
/* Deassociate treeview from the window before doing anything drastic. */
SetWindowLongA(infoPtr->hwnd, 0, (LONG)NULL);
DeleteObject(infoPtr->hBoldFont);
COMCTL32_Free(infoPtr);
return 0;
}
/* Miscellaneous Messages ***********************************************/
static LRESULT
TREEVIEW_ScrollKeyDown(TREEVIEW_INFO *infoPtr, WPARAM key)
{
static const struct
{
unsigned char code;
}
scroll[] =
{
#define SCROLL_ENTRY(dir, code) { ((dir) << 7) | (code) }
SCROLL_ENTRY(SB_VERT, SB_PAGEUP), /* VK_PRIOR */
SCROLL_ENTRY(SB_VERT, SB_PAGEDOWN), /* VK_NEXT */
SCROLL_ENTRY(SB_VERT, SB_BOTTOM), /* VK_END */
SCROLL_ENTRY(SB_VERT, SB_TOP), /* VK_HOME */
SCROLL_ENTRY(SB_HORZ, SB_LINEUP), /* VK_LEFT */
SCROLL_ENTRY(SB_VERT, SB_LINEUP), /* VK_UP */
SCROLL_ENTRY(SB_HORZ, SB_LINEDOWN), /* VK_RIGHT */
SCROLL_ENTRY(SB_VERT, SB_LINEDOWN) /* VK_DOWN */
#undef SCROLL_ENTRY
};
if (key >= VK_PRIOR && key <= VK_DOWN)
{
unsigned char code = scroll[key - VK_PRIOR].code;
(((code & (1 << 7)) == (SB_HORZ << 7))
? TREEVIEW_HScroll
: TREEVIEW_VScroll)(infoPtr, code & 0x7F);
}
return 0;
}
/************************************************************************
* TREEVIEW_KeyDown
*
* VK_UP Move selection to the previous non-hidden item.
* VK_DOWN Move selection to the next non-hidden item.
* VK_HOME Move selection to the first item.
* VK_END Move selection to the last item.
* VK_LEFT If expanded then collapse, otherwise move to parent.
* VK_RIGHT If collapsed then expand, otherwise move to first child.
* VK_ADD Expand.
* VK_SUBTRACT Collapse.
* VK_MULTIPLY Expand all.
* VK_PRIOR Move up GetVisibleCount items.
* VK_NEXT Move down GetVisibleCount items.
* VK_BACK Move to parent.
* CTRL-Left,Right,Up,Down,PgUp,PgDown,Home,End: Scroll without changing selection
*/
static LRESULT
TREEVIEW_KeyDown(TREEVIEW_INFO *infoPtr, WPARAM wParam)
{
/* If it is non-NULL and different, it will be selected and visible. */
TREEVIEW_ITEM *newSelection = NULL;
TREEVIEW_ITEM *prevItem = infoPtr->selectedItem;
TRACE("%x\n", wParam);
if (prevItem == NULL)
return FALSE;
if (GetAsyncKeyState(VK_CONTROL) & 0x8000)
return TREEVIEW_ScrollKeyDown(infoPtr, wParam);
switch (wParam)
{
case VK_UP:
newSelection = TREEVIEW_GetPrevListItem(infoPtr, prevItem);
if (!newSelection)
newSelection = infoPtr->root->firstChild;
break;
case VK_DOWN:
newSelection = TREEVIEW_GetNextListItem(infoPtr, prevItem);
break;
case VK_HOME:
newSelection = infoPtr->root->firstChild;
break;
case VK_END:
newSelection = TREEVIEW_GetLastListItem(infoPtr, infoPtr->root);
break;
case VK_LEFT:
if (prevItem->state & TVIS_EXPANDED)
{
TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
}
else if (prevItem->parent != infoPtr->root)
{
newSelection = prevItem->parent;
}
break;
case VK_RIGHT:
if (TREEVIEW_HasChildren(infoPtr, prevItem))
{
if (!(prevItem->state & TVIS_EXPANDED))
TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
else
{
newSelection = prevItem->firstChild;
}
}
break;
case VK_MULTIPLY:
TREEVIEW_ExpandAll(infoPtr, prevItem);
break;
case VK_ADD:
if (!(prevItem->state & TVIS_EXPANDED))
TREEVIEW_Expand(infoPtr, prevItem, FALSE, TRUE);
break;
case VK_SUBTRACT:
if (prevItem->state & TVIS_EXPANDED)
TREEVIEW_Collapse(infoPtr, prevItem, FALSE, TRUE);
break;
case VK_PRIOR:
newSelection
= TREEVIEW_GetListItem(infoPtr, prevItem,
-TREEVIEW_GetVisibleCount(infoPtr));
break;
case VK_NEXT:
newSelection
= TREEVIEW_GetListItem(infoPtr, prevItem,
TREEVIEW_GetVisibleCount(infoPtr));
break;
case VK_BACK:
newSelection = prevItem->parent;
if (newSelection == infoPtr->root)
newSelection = NULL;
break;
case VK_SPACE:
if (infoPtr->dwStyle & TVS_CHECKBOXES)
TREEVIEW_ToggleItemState(infoPtr, prevItem);
break;
}
if (newSelection && newSelection != prevItem)
{
if (TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, newSelection,
TVC_BYKEYBOARD))
{
TREEVIEW_EnsureVisible(infoPtr, newSelection, FALSE);
}
}
return FALSE;
}
static LRESULT
TREEVIEW_Notify(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
LPNMHDR lpnmh = (LPNMHDR)lParam;
if (lpnmh->code == PGN_CALCSIZE) {
LPNMPGCALCSIZE lppgc = (LPNMPGCALCSIZE)lParam;
if (lppgc->dwFlag == PGF_CALCWIDTH) {
lppgc->iWidth = infoPtr->treeWidth;
TRACE("got PGN_CALCSIZE, returning horz size = %ld, client=%ld\n",
infoPtr->treeWidth, infoPtr->clientWidth);
}
else {
lppgc->iHeight = infoPtr->treeHeight;
TRACE("got PGN_CALCSIZE, returning vert size = %ld, client=%ld\n",
infoPtr->treeHeight, infoPtr->clientHeight);
}
return 0;
}
return DefWindowProcA(infoPtr->hwnd, WM_NOTIFY, wParam, lParam);
}
static LRESULT
TREEVIEW_NotifyFormat (TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
INT i;
if (lParam == NF_REQUERY) {
i = SendMessageA(GetParent (infoPtr->hwnd),
WM_NOTIFYFORMAT, (WPARAM)infoPtr->hwnd, NF_QUERY);
if ((i < NFR_ANSI) || (i > NFR_UNICODE)) {
ERR("wrong response to WM_NOTIFYFORMAT (%d), assuming ANSI\n",
i);
i = NFR_ANSI;
}
infoPtr->bNtfUnicode = (i == NFR_UNICODE) ? 1 : 0;
return (LRESULT)i;
}
return (LRESULT)((infoPtr->bNtfUnicode) ? NFR_UNICODE : NFR_ANSI);
}
static LRESULT
TREEVIEW_Size(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
if (wParam == SIZE_RESTORED)
{
infoPtr->clientWidth = SLOWORD(lParam);
infoPtr->clientHeight = SHIWORD(lParam);
TREEVIEW_RecalculateVisibleOrder(infoPtr, NULL);
TREEVIEW_SetFirstVisible(infoPtr, infoPtr->firstVisible, TRUE);
TREEVIEW_UpdateScrollBars(infoPtr);
}
else
{
FIXME("WM_SIZE flag %x %lx not handled\n", wParam, lParam);
}
TREEVIEW_Invalidate(infoPtr, NULL);
return 0;
}
static LRESULT
TREEVIEW_StyleChanged(TREEVIEW_INFO *infoPtr, WPARAM wParam, LPARAM lParam)
{
TRACE("(%x %lx)\n", wParam, lParam);
if (wParam == GWL_STYLE)
{
DWORD dwNewStyle = ((LPSTYLESTRUCT)lParam)->styleNew;
/* we have to take special care about tooltips */
if ((infoPtr->dwStyle ^ dwNewStyle) & TVS_NOTOOLTIPS)
{
if (infoPtr->dwStyle & TVS_NOTOOLTIPS)
{
infoPtr->hwndToolTip = COMCTL32_CreateToolTip(infoPtr->hwnd);
TRACE("\n");
}
else
{
DestroyWindow(infoPtr->hwndToolTip);
infoPtr->hwndToolTip = 0;
}
}
infoPtr->dwStyle = dwNewStyle;
}
TREEVIEW_UpdateSubTree(infoPtr, infoPtr->root);
TREEVIEW_UpdateScrollBars(infoPtr);
TREEVIEW_Invalidate(infoPtr, NULL);
return 0;
}
static LRESULT
TREEVIEW_SetFocus(TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
if (!infoPtr->selectedItem)
{
TREEVIEW_DoSelectItem(infoPtr, TVGN_CARET, infoPtr->firstVisible,
TVC_UNKNOWN);
}
TREEVIEW_SendSimpleNotify(infoPtr, NM_SETFOCUS);
TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
return 0;
}
static LRESULT
TREEVIEW_KillFocus(TREEVIEW_INFO *infoPtr)
{
TRACE("\n");
TREEVIEW_SendSimpleNotify(infoPtr, NM_KILLFOCUS);
TREEVIEW_Invalidate(infoPtr, infoPtr->selectedItem);
return 0;
}
static LRESULT WINAPI
TREEVIEW_WindowProc(HWND hwnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
TREEVIEW_INFO *infoPtr = TREEVIEW_GetInfoPtr(hwnd);
if (infoPtr) TREEVIEW_VerifyTree(infoPtr);
else
{
if (uMsg == WM_CREATE)
TREEVIEW_Create(hwnd);
else
goto def;
}
switch (uMsg)
{
case TVM_CREATEDRAGIMAGE:
return TREEVIEW_CreateDragImage(infoPtr, wParam, lParam);
case TVM_DELETEITEM:
return TREEVIEW_DeleteItem(infoPtr, (HTREEITEM)lParam);
case TVM_EDITLABELA:
return (LRESULT)TREEVIEW_EditLabelA(infoPtr, (HTREEITEM)lParam);
case TVM_EDITLABELW:
FIXME("Unimplemented msg TVM_EDITLABELW\n");
return 0;
case TVM_ENDEDITLABELNOW:
return TREEVIEW_EndEditLabelNow(infoPtr, (BOOL)wParam);
case TVM_ENSUREVISIBLE:
return TREEVIEW_EnsureVisible(infoPtr, (HTREEITEM)lParam, TRUE);
case TVM_EXPAND:
return TREEVIEW_ExpandMsg(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
case TVM_GETBKCOLOR:
return TREEVIEW_GetBkColor(infoPtr);
case TVM_GETCOUNT:
return TREEVIEW_GetCount(infoPtr);
case TVM_GETEDITCONTROL:
return TREEVIEW_GetEditControl(infoPtr);
case TVM_GETIMAGELIST:
return TREEVIEW_GetImageList(infoPtr, wParam);
case TVM_GETINDENT:
return TREEVIEW_GetIndent(infoPtr);
case TVM_GETINSERTMARKCOLOR:
return TREEVIEW_GetInsertMarkColor(infoPtr);
case TVM_GETISEARCHSTRINGA:
FIXME("Unimplemented msg TVM_GETISEARCHSTRINGA\n");
return 0;
case TVM_GETISEARCHSTRINGW:
FIXME("Unimplemented msg TVM_GETISEARCHSTRINGW\n");
return 0;
case TVM_GETITEMA:
return TREEVIEW_GetItemA(infoPtr, (LPTVITEMEXA)lParam);
case TVM_GETITEMW:
return TREEVIEW_GetItemW(infoPtr, (LPTVITEMEXW)lParam);
case TVM_GETITEMHEIGHT:
return TREEVIEW_GetItemHeight(infoPtr);
case TVM_GETITEMRECT:
return TREEVIEW_GetItemRect(infoPtr, (BOOL)wParam, (LPRECT)lParam);
case TVM_GETITEMSTATE:
return TREEVIEW_GetItemState(infoPtr, (HTREEITEM)wParam, (UINT)lParam);
case TVM_GETLINECOLOR:
return TREEVIEW_GetLineColor(infoPtr);
case TVM_GETNEXTITEM:
return TREEVIEW_GetNextItem(infoPtr, (UINT)wParam, (HTREEITEM)lParam);
case TVM_GETSCROLLTIME:
return TREEVIEW_GetScrollTime(infoPtr);
case TVM_GETTEXTCOLOR:
return TREEVIEW_GetTextColor(infoPtr);
case TVM_GETTOOLTIPS:
return TREEVIEW_GetToolTips(infoPtr);
case TVM_GETUNICODEFORMAT:
FIXME("Unimplemented msg TVM_GETUNICODEFORMAT\n");
return 0;
case TVM_GETVISIBLECOUNT:
return TREEVIEW_GetVisibleCount(infoPtr);
case TVM_HITTEST:
return TREEVIEW_HitTest(infoPtr, (LPTVHITTESTINFO)lParam);
case TVM_INSERTITEMA:
return TREEVIEW_InsertItemA(infoPtr, lParam);
case TVM_INSERTITEMW:
return TREEVIEW_InsertItemW(infoPtr, lParam);
case TVM_SELECTITEM:
return TREEVIEW_SelectItem(infoPtr, (INT)wParam, (HTREEITEM)lParam);
case TVM_SETBKCOLOR:
return TREEVIEW_SetBkColor(infoPtr, (COLORREF)lParam);
case TVM_SETIMAGELIST:
return TREEVIEW_SetImageList(infoPtr, wParam, (HIMAGELIST)lParam);
case TVM_SETINDENT:
return TREEVIEW_SetIndent(infoPtr, (UINT)wParam);
case TVM_SETINSERTMARK:
return TREEVIEW_SetInsertMark(infoPtr, (BOOL)wParam, (HTREEITEM)lParam);
case TVM_SETINSERTMARKCOLOR:
return TREEVIEW_SetInsertMarkColor(infoPtr, (COLORREF)lParam);
case TVM_SETITEMA:
return TREEVIEW_SetItemA(infoPtr, (LPTVITEMEXA)lParam);
case TVM_SETITEMW:
return TREEVIEW_SetItemW(infoPtr, (LPTVITEMEXW)lParam);
return 0;
case TVM_SETLINECOLOR:
return TREEVIEW_SetLineColor(infoPtr, (COLORREF)lParam);
case TVM_SETITEMHEIGHT:
return TREEVIEW_SetItemHeight(infoPtr, (INT)(SHORT)wParam);
case TVM_SETSCROLLTIME:
return TREEVIEW_SetScrollTime(infoPtr, (UINT)wParam);
case TVM_SETTEXTCOLOR:
return TREEVIEW_SetTextColor(infoPtr, (COLORREF)lParam);
case TVM_SETTOOLTIPS:
return TREEVIEW_SetToolTips(infoPtr, (HWND)wParam);
case TVM_SETUNICODEFORMAT:
FIXME("Unimplemented msg TVM_SETUNICODEFORMAT\n");
return 0;
case TVM_SORTCHILDREN:
return TREEVIEW_SortChildren(infoPtr, wParam, lParam);
case TVM_SORTCHILDRENCB:
return TREEVIEW_SortChildrenCB(infoPtr, wParam, (LPTVSORTCB)lParam);
case WM_CHAR:
return TREEVIEW_ProcessLetterKeys( hwnd, wParam, lParam );
case WM_COMMAND:
return TREEVIEW_Command(infoPtr, wParam, lParam);
case WM_DESTROY:
return TREEVIEW_Destroy(infoPtr);
/* WM_ENABLE */
case WM_ERASEBKGND:
return TREEVIEW_EraseBackground(infoPtr, (HDC)wParam);
case WM_GETDLGCODE:
return DLGC_WANTARROWS | DLGC_WANTCHARS;
case WM_GETFONT:
return TREEVIEW_GetFont(infoPtr);
case WM_HSCROLL:
return TREEVIEW_HScroll(infoPtr, wParam);
case WM_KEYDOWN:
return TREEVIEW_KeyDown(infoPtr, wParam);
case WM_KILLFOCUS:
return TREEVIEW_KillFocus(infoPtr);
case WM_LBUTTONDBLCLK:
return TREEVIEW_LButtonDoubleClick(infoPtr, lParam);
case WM_LBUTTONDOWN:
return TREEVIEW_LButtonDown(infoPtr, lParam);
/* WM_MBUTTONDOWN */
/* WM_MOUSEMOVE */
case WM_NOTIFY:
return TREEVIEW_Notify(infoPtr, wParam, lParam);
case WM_NOTIFYFORMAT:
return TREEVIEW_NotifyFormat(infoPtr, wParam, lParam);
case WM_PAINT:
return TREEVIEW_Paint(infoPtr, wParam);
/* WM_PRINTCLIENT */
case WM_RBUTTONDOWN:
return TREEVIEW_RButtonDown(infoPtr, lParam);
case WM_SETFOCUS:
return TREEVIEW_SetFocus(infoPtr);
case WM_SETFONT:
return TREEVIEW_SetFont(infoPtr, (HFONT)wParam, (BOOL)lParam);
case WM_SETREDRAW:
return TREEVIEW_SetRedraw(infoPtr, wParam, lParam);
case WM_SIZE:
return TREEVIEW_Size(infoPtr, wParam, lParam);
case WM_STYLECHANGED:
return TREEVIEW_StyleChanged(infoPtr, wParam, lParam);
/* WM_SYSCOLORCHANGE */
/* WM_SYSKEYDOWN */
case WM_TIMER:
return TREEVIEW_HandleTimer(infoPtr, wParam);
case WM_VSCROLL:
return TREEVIEW_VScroll(infoPtr, wParam);
/* WM_WININICHANGE */
case WM_MOUSEWHEEL:
if (wParam & (MK_SHIFT | MK_CONTROL))
goto def;
return TREEVIEW_MouseWheel(infoPtr, wParam);
case WM_DRAWITEM:
TRACE("drawItem\n");
goto def;
default:
/* This mostly catches MFC and Delphi messages. :( */
if ((uMsg >= WM_USER) && (uMsg < WM_APP))
TRACE("Unknown msg %04x wp=%08x lp=%08lx\n", uMsg, wParam, lParam);
def:
return DefWindowProcA(hwnd, uMsg, wParam, lParam);
}
return 0;
}
/* Class Registration ***************************************************/
VOID
TREEVIEW_Register(void)
{
WNDCLASSA wndClass;
TRACE("\n");
ZeroMemory(&wndClass, sizeof(WNDCLASSA));
wndClass.style = CS_GLOBALCLASS | CS_DBLCLKS;
wndClass.lpfnWndProc = (WNDPROC)TREEVIEW_WindowProc;
wndClass.cbClsExtra = 0;
wndClass.cbWndExtra = sizeof(TREEVIEW_INFO *);
wndClass.hCursor = LoadCursorA(0, IDC_ARROWA);
wndClass.hbrBackground = 0;
wndClass.lpszClassName = WC_TREEVIEWA;
RegisterClassA(&wndClass);
}
VOID
TREEVIEW_Unregister(void)
{
UnregisterClassA(WC_TREEVIEWA, (HINSTANCE) NULL);
}
/* Tree Verification ****************************************************/
#ifdef NDEBUG
static inline void
TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item);
static inline void TREEVIEW_VerifyItemCommon(TREEVIEW_INFO *infoPtr,
TREEVIEW_ITEM *item)
{
assert(infoPtr != NULL);
assert(item != NULL);
/* both NULL, or both non-null */
assert((item->firstChild == NULL) == (item->lastChild == NULL));
assert(item->firstChild != item);
assert(item->lastChild != item);
if (item->firstChild)
{
assert(item->firstChild->parent == item);
assert(item->firstChild->prevSibling == NULL);
}
if (item->lastChild)
{
assert(item->lastChild->parent == item);
assert(item->lastChild->nextSibling == NULL);
}
assert(item->nextSibling != item);
if (item->nextSibling)
{
assert(item->nextSibling->parent == item->parent);
assert(item->nextSibling->prevSibling == item);
}
assert(item->prevSibling != item);
if (item->prevSibling)
{
assert(item->prevSibling->parent == item->parent);
assert(item->prevSibling->nextSibling == item);
}
}
static inline void
TREEVIEW_VerifyItem(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
assert(item != NULL);
assert(item->parent != NULL);
assert(item->parent != item);
assert(item->iLevel == item->parent->iLevel + 1);
assert(DPA_GetPtrIndex(infoPtr->items, item) != -1);
TREEVIEW_VerifyItemCommon(infoPtr, item);
TREEVIEW_VerifyChildren(infoPtr, item);
}
static inline void
TREEVIEW_VerifyChildren(TREEVIEW_INFO *infoPtr, TREEVIEW_ITEM *item)
{
TREEVIEW_ITEM *child;
assert(item != NULL);
for (child = item->firstChild; child != NULL; child = child->nextSibling)
TREEVIEW_VerifyItem(infoPtr, child);
}
static inline void
TREEVIEW_VerifyRoot(TREEVIEW_INFO *infoPtr)
{
TREEVIEW_ITEM *root = infoPtr->root;
assert(root != NULL);
assert(root->iLevel == -1);
assert(root->parent == NULL);
assert(root->prevSibling == NULL);
TREEVIEW_VerifyItemCommon(infoPtr, root);
TREEVIEW_VerifyChildren(infoPtr, root);
}
static void
TREEVIEW_VerifyTree(TREEVIEW_INFO *infoPtr)
{
assert(infoPtr != NULL);
TREEVIEW_VerifyRoot(infoPtr);
}
#endif
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