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421 lines
13 KiB
C
421 lines
13 KiB
C
/*
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* Progress control
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*
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* Copyright 1997, 2002 Dimitrie O. Paun
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* Copyright 1998, 1999 Eric Kohl
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include <string.h>
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#include "winbase.h"
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#include "commctrl.h"
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#include "wine/debug.h"
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WINE_DEFAULT_DEBUG_CHANNEL(progress);
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typedef struct
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{
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HWND Self; /* The window handle for this control */
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INT CurVal; /* Current progress value */
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INT MinVal; /* Minimum progress value */
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INT MaxVal; /* Maximum progress value */
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INT Step; /* Step to use on PMB_STEPIT */
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COLORREF ColorBar; /* Bar color */
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COLORREF ColorBk; /* Background color */
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HFONT Font; /* Handle to font (not unused) */
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} PROGRESS_INFO;
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/* Control configuration constants */
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#define LED_GAP 2
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/***********************************************************************
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* PROGRESS_Invalidate
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*
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* Invalide the range between old and new pos.
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*/
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static void PROGRESS_Invalidate( PROGRESS_INFO *infoPtr, INT old, INT new )
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{
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LONG style = GetWindowLongW (infoPtr->Self, GWL_STYLE);
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RECT rect;
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int oldPos, newPos, ledWidth;
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GetClientRect (infoPtr->Self, &rect);
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InflateRect(&rect, -1, -1);
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if (style & PBS_VERTICAL)
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{
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oldPos = rect.bottom - MulDiv (old - infoPtr->MinVal, rect.bottom - rect.top,
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infoPtr->MaxVal - infoPtr->MinVal);
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newPos = rect.bottom - MulDiv (new - infoPtr->MinVal, rect.bottom - rect.top,
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infoPtr->MaxVal - infoPtr->MinVal);
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ledWidth = MulDiv (rect.right - rect.left, 2, 3);
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rect.top = min( oldPos, newPos );
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rect.bottom = max( oldPos, newPos );
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if (!(style & PBS_SMOOTH)) rect.top -= ledWidth;
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InvalidateRect( infoPtr->Self, &rect, oldPos < newPos );
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}
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else
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{
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oldPos = rect.left + MulDiv (old - infoPtr->MinVal, rect.right - rect.left,
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infoPtr->MaxVal - infoPtr->MinVal);
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newPos = rect.left + MulDiv (new - infoPtr->MinVal, rect.right - rect.left,
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infoPtr->MaxVal - infoPtr->MinVal);
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ledWidth = MulDiv (rect.bottom - rect.top, 2, 3);
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rect.left = min( oldPos, newPos );
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rect.right = max( oldPos, newPos );
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if (!(style & PBS_SMOOTH)) rect.right += ledWidth;
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InvalidateRect( infoPtr->Self, &rect, oldPos > newPos );
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}
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}
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/***********************************************************************
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* PROGRESS_Draw
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* Draws the progress bar.
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*/
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static LRESULT PROGRESS_Draw (PROGRESS_INFO *infoPtr, HDC hdc)
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{
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HBRUSH hbrBar, hbrBk;
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int rightBar, rightMost, ledWidth;
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RECT rect;
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DWORD dwStyle;
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TRACE("(infoPtr=%p, hdc=%x)\n", infoPtr, hdc);
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/* get the required bar brush */
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if (infoPtr->ColorBar == CLR_DEFAULT)
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hbrBar = GetSysColorBrush(COLOR_HIGHLIGHT);
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else
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hbrBar = CreateSolidBrush (infoPtr->ColorBar);
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if (infoPtr->ColorBk == CLR_DEFAULT)
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hbrBk = GetSysColorBrush(COLOR_3DFACE);
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else
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hbrBk = CreateSolidBrush(infoPtr->ColorBk);
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/* get client rectangle */
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GetClientRect (infoPtr->Self, &rect);
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FrameRect( hdc, &rect, hbrBk );
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InflateRect(&rect, -1, -1);
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/* get the window style */
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dwStyle = GetWindowLongW (infoPtr->Self, GWL_STYLE);
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/* compute extent of progress bar */
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if (dwStyle & PBS_VERTICAL) {
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rightBar = rect.bottom -
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MulDiv (infoPtr->CurVal - infoPtr->MinVal,
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rect.bottom - rect.top,
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infoPtr->MaxVal - infoPtr->MinVal);
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ledWidth = MulDiv (rect.right - rect.left, 2, 3);
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rightMost = rect.top;
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} else {
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rightBar = rect.left +
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MulDiv (infoPtr->CurVal - infoPtr->MinVal,
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rect.right - rect.left,
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infoPtr->MaxVal - infoPtr->MinVal);
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ledWidth = MulDiv (rect.bottom - rect.top, 2, 3);
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rightMost = rect.right;
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}
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/* now draw the bar */
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if (dwStyle & PBS_SMOOTH)
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{
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if (dwStyle & PBS_VERTICAL)
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{
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INT old_top = rect.top;
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rect.top = rightBar;
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FillRect(hdc, &rect, hbrBar);
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rect.bottom = rect.top;
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rect.top = old_top;
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FillRect(hdc, &rect, hbrBk);
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}
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else
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{
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INT old_right = rect.right;
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rect.right = rightBar;
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FillRect(hdc, &rect, hbrBar);
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rect.left = rect.right;
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rect.right = old_right;
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FillRect(hdc, &rect, hbrBk);
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}
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} else {
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if (dwStyle & PBS_VERTICAL) {
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while(rect.bottom > rightBar) {
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rect.top = rect.bottom - ledWidth;
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if (rect.top < rightMost)
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rect.top = rightMost;
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FillRect(hdc, &rect, hbrBar);
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rect.bottom = rect.top;
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rect.top -= LED_GAP;
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if (rect.top <= rightBar) break;
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FillRect(hdc, &rect, hbrBk);
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rect.bottom = rect.top;
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}
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rect.top = rightMost;
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FillRect(hdc, &rect, hbrBk);
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} else {
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while(rect.left < rightBar) {
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rect.right = rect.left + ledWidth;
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if (rect.right > rightMost)
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rect.right = rightMost;
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FillRect(hdc, &rect, hbrBar);
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rect.left = rect.right;
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rect.right += LED_GAP;
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if (rect.right >= rightBar) break;
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FillRect(hdc, &rect, hbrBk);
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rect.left = rect.right;
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}
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rect.right = rightMost;
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FillRect(hdc, &rect, hbrBk);
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}
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}
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/* delete bar brush */
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if (infoPtr->ColorBar != CLR_DEFAULT) DeleteObject (hbrBar);
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if (infoPtr->ColorBk != CLR_DEFAULT) DeleteObject (hbrBk);
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return 0;
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}
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/***********************************************************************
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* PROGRESS_Paint
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* Draw the progress bar. The background need not be erased.
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* If dc!=0, it draws on it
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*/
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static LRESULT PROGRESS_Paint (PROGRESS_INFO *infoPtr, HDC hdc)
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{
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PAINTSTRUCT ps;
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if (hdc) return PROGRESS_Draw (infoPtr, hdc);
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hdc = BeginPaint (infoPtr->Self, &ps);
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PROGRESS_Draw (infoPtr, hdc);
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EndPaint (infoPtr->Self, &ps);
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return 0;
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}
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/***********************************************************************
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* PROGRESS_CoercePos
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* Makes sure the current position (CurVal) is within bounds.
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*/
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static void PROGRESS_CoercePos(PROGRESS_INFO *infoPtr)
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{
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if(infoPtr->CurVal < infoPtr->MinVal)
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infoPtr->CurVal = infoPtr->MinVal;
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if(infoPtr->CurVal > infoPtr->MaxVal)
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infoPtr->CurVal = infoPtr->MaxVal;
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}
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/***********************************************************************
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* PROGRESS_SetFont
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* Set new Font for progress bar
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*/
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static HFONT PROGRESS_SetFont (PROGRESS_INFO *infoPtr, HFONT hFont, BOOL bRedraw)
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{
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HFONT hOldFont = infoPtr->Font;
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infoPtr->Font = hFont;
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/* Since infoPtr->Font is not used, there is no need for repaint */
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return hOldFont;
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}
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static DWORD PROGRESS_SetRange (PROGRESS_INFO *infoPtr, int low, int high)
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{
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DWORD res = MAKELONG(LOWORD(infoPtr->MinVal), LOWORD(infoPtr->MaxVal));
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/* if nothing changes, simply return */
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if(infoPtr->MinVal == low && infoPtr->MaxVal == high) return res;
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infoPtr->MinVal = low;
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infoPtr->MaxVal = high;
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PROGRESS_CoercePos(infoPtr);
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return res;
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}
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/***********************************************************************
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* ProgressWindowProc
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*/
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static LRESULT WINAPI ProgressWindowProc(HWND hwnd, UINT message,
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WPARAM wParam, LPARAM lParam)
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{
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PROGRESS_INFO *infoPtr;
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TRACE("hwnd=%x msg=%04x wparam=%x lParam=%lx\n", hwnd, message, wParam, lParam);
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infoPtr = (PROGRESS_INFO *)GetWindowLongW(hwnd, 0);
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if (!infoPtr && message != WM_CREATE)
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return DefWindowProcW( hwnd, message, wParam, lParam );
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switch(message) {
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case WM_CREATE:
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{
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DWORD dwExStyle = GetWindowLongW (hwnd, GWL_EXSTYLE);
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dwExStyle &= ~(WS_EX_CLIENTEDGE | WS_EX_WINDOWEDGE);
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dwExStyle |= WS_EX_STATICEDGE;
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SetWindowLongW (hwnd, GWL_EXSTYLE, dwExStyle);
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/* Force recalculation of a non-client area */
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SetWindowPos(hwnd, 0, 0, 0, 0, 0,
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SWP_FRAMECHANGED | SWP_NOSIZE | SWP_NOMOVE | SWP_NOZORDER | SWP_NOACTIVATE);
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/* allocate memory for info struct */
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infoPtr = (PROGRESS_INFO *)COMCTL32_Alloc (sizeof(PROGRESS_INFO));
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if (!infoPtr) return -1;
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SetWindowLongW (hwnd, 0, (DWORD)infoPtr);
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/* initialize the info struct */
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infoPtr->Self = hwnd;
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infoPtr->MinVal = 0;
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infoPtr->MaxVal = 100;
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infoPtr->CurVal = 0;
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infoPtr->Step = 10;
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infoPtr->ColorBar = CLR_DEFAULT;
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infoPtr->ColorBk = CLR_DEFAULT;
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infoPtr->Font = 0;
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TRACE("Progress Ctrl creation, hwnd=%04x\n", hwnd);
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return 0;
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}
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case WM_DESTROY:
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TRACE("Progress Ctrl destruction, hwnd=%04x\n", hwnd);
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COMCTL32_Free (infoPtr);
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SetWindowLongW(hwnd, 0, 0);
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return 0;
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case WM_GETFONT:
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return (LRESULT)infoPtr->Font;
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case WM_SETFONT:
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return PROGRESS_SetFont (infoPtr, (HFONT)wParam, (BOOL)lParam);
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case WM_PAINT:
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return PROGRESS_Paint (infoPtr, (HDC)wParam);
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case PBM_DELTAPOS:
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{
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INT oldVal;
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oldVal = infoPtr->CurVal;
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if(wParam != 0) {
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infoPtr->CurVal += (INT)wParam;
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PROGRESS_CoercePos (infoPtr);
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TRACE("PBM_DELTAPOS: current pos changed from %d to %d\n", oldVal, infoPtr->CurVal);
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PROGRESS_Invalidate( infoPtr, oldVal, infoPtr->CurVal );
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}
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return oldVal;
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}
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case PBM_SETPOS:
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{
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INT oldVal;
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oldVal = infoPtr->CurVal;
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if(oldVal != wParam) {
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infoPtr->CurVal = (INT)wParam;
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PROGRESS_CoercePos(infoPtr);
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TRACE("PBM_SETPOS: current pos changed from %d to %d\n", oldVal, infoPtr->CurVal);
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PROGRESS_Invalidate( infoPtr, oldVal, infoPtr->CurVal );
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}
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return oldVal;
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}
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case PBM_SETRANGE:
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return PROGRESS_SetRange (infoPtr, (int)LOWORD(lParam), (int)HIWORD(lParam));
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case PBM_SETSTEP:
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{
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INT oldStep;
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oldStep = infoPtr->Step;
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infoPtr->Step = (INT)wParam;
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return oldStep;
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}
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case PBM_STEPIT:
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{
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INT oldVal;
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oldVal = infoPtr->CurVal;
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infoPtr->CurVal += infoPtr->Step;
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if(infoPtr->CurVal > infoPtr->MaxVal)
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infoPtr->CurVal = infoPtr->MinVal;
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if(oldVal != infoPtr->CurVal)
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{
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TRACE("PBM_STEPIT: current pos changed from %d to %d\n", oldVal, infoPtr->CurVal);
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PROGRESS_Invalidate( infoPtr, oldVal, infoPtr->CurVal );
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}
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return oldVal;
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}
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case PBM_SETRANGE32:
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return PROGRESS_SetRange (infoPtr, (int)wParam, (int)lParam);
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case PBM_GETRANGE:
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if (lParam) {
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((PPBRANGE)lParam)->iLow = infoPtr->MinVal;
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((PPBRANGE)lParam)->iHigh = infoPtr->MaxVal;
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}
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return wParam ? infoPtr->MinVal : infoPtr->MaxVal;
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case PBM_GETPOS:
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return infoPtr->CurVal;
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case PBM_SETBARCOLOR:
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infoPtr->ColorBar = (COLORREF)lParam;
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InvalidateRect(hwnd, NULL, TRUE);
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return 0;
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case PBM_SETBKCOLOR:
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infoPtr->ColorBk = (COLORREF)lParam;
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InvalidateRect(hwnd, NULL, TRUE);
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return 0;
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default:
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if ((message >= WM_USER) && (message < WM_APP))
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ERR("unknown msg %04x wp=%04x lp=%08lx\n", message, wParam, lParam );
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return DefWindowProcW( hwnd, message, wParam, lParam );
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}
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}
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/***********************************************************************
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* PROGRESS_Register [Internal]
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*
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* Registers the progress bar window class.
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*/
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VOID PROGRESS_Register (void)
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{
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WNDCLASSW wndClass;
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ZeroMemory (&wndClass, sizeof(wndClass));
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wndClass.style = CS_GLOBALCLASS | CS_VREDRAW | CS_HREDRAW;
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wndClass.lpfnWndProc = (WNDPROC)ProgressWindowProc;
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wndClass.cbClsExtra = 0;
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wndClass.cbWndExtra = sizeof (PROGRESS_INFO *);
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wndClass.hCursor = LoadCursorW (0, IDC_ARROWW);
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wndClass.lpszClassName = PROGRESS_CLASSW;
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RegisterClassW (&wndClass);
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}
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/***********************************************************************
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* PROGRESS_Unregister [Internal]
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*
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* Unregisters the progress bar window class.
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*/
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VOID PROGRESS_Unregister (void)
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{
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UnregisterClassW (PROGRESS_CLASSW, (HINSTANCE)NULL);
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}
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