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205 lines
5.9 KiB
C
205 lines
5.9 KiB
C
/*
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* Icontitle window class.
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*
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* Copyright 1997 Alex Korobka
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
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*/
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#include <stdarg.h>
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#include <stdio.h>
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#include <string.h>
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#include "windef.h"
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#include "winbase.h"
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#include "wingdi.h"
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#include "winuser.h"
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#include "controls.h"
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#include "win.h"
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static BOOL bMultiLineTitle;
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static HFONT hIconTitleFont;
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/*********************************************************************
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* icon title class descriptor
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*/
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const struct builtin_class_descr ICONTITLE_builtin_class =
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{
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(LPCWSTR)ICONTITLE_CLASS_ATOM, /* name */
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0, /* style */
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WINPROC_ICONTITLE, /* proc */
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0, /* extra */
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IDC_ARROW, /* cursor */
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0 /* brush */
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};
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/***********************************************************************
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* ICONTITLE_SetTitlePos
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*/
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static BOOL ICONTITLE_SetTitlePos( HWND hwnd, HWND owner )
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{
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WCHAR str[80];
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HDC hDC;
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HFONT hPrevFont;
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RECT rect;
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INT cx, cy;
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POINT pt;
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int length = GetWindowTextW( owner, str, ARRAY_SIZE( str ));
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while (length && str[length - 1] == ' ') /* remove trailing spaces */
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str[--length] = 0;
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if( !length )
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{
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lstrcpyW( str, L"<...>" );
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length = lstrlenW( str );
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}
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if (!(hDC = GetDC( hwnd ))) return FALSE;
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hPrevFont = SelectObject( hDC, hIconTitleFont );
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SetRect( &rect, 0, 0, GetSystemMetrics(SM_CXICONSPACING) -
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GetSystemMetrics(SM_CXBORDER) * 2,
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GetSystemMetrics(SM_CYBORDER) * 2 );
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DrawTextW( hDC, str, length, &rect, DT_CALCRECT | DT_CENTER | DT_NOPREFIX | DT_WORDBREAK |
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(( bMultiLineTitle ) ? 0 : DT_SINGLELINE) );
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SelectObject( hDC, hPrevFont );
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ReleaseDC( hwnd, hDC );
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cx = rect.right - rect.left + 4 * GetSystemMetrics(SM_CXBORDER);
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cy = rect.bottom - rect.top;
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pt.x = (GetSystemMetrics(SM_CXICON) - cx) / 2;
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pt.y = GetSystemMetrics(SM_CYICON);
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/* point is relative to owner, make it relative to parent */
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MapWindowPoints( owner, GetParent(hwnd), &pt, 1 );
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SetWindowPos( hwnd, owner, pt.x, pt.y, cx, cy, SWP_NOACTIVATE );
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return TRUE;
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}
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/***********************************************************************
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* ICONTITLE_Paint
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*/
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static BOOL ICONTITLE_Paint( HWND hwnd, HWND owner, HDC hDC, BOOL bActive )
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{
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RECT rect;
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HFONT hPrevFont;
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HBRUSH hBrush;
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COLORREF textColor = 0;
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if( bActive )
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{
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hBrush = GetSysColorBrush(COLOR_ACTIVECAPTION);
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textColor = GetSysColor(COLOR_CAPTIONTEXT);
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}
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else
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{
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if( GetWindowLongA( hwnd, GWL_STYLE ) & WS_CHILD )
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{
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hBrush = (HBRUSH) GetClassLongPtrW(hwnd, GCLP_HBRBACKGROUND);
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if( hBrush )
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{
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INT level;
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LOGBRUSH logBrush;
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GetObjectA( hBrush, sizeof(logBrush), &logBrush );
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level = GetRValue(logBrush.lbColor) +
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GetGValue(logBrush.lbColor) +
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GetBValue(logBrush.lbColor);
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if( level < (0x7F * 3) )
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textColor = RGB( 0xFF, 0xFF, 0xFF );
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}
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else
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hBrush = GetStockObject( WHITE_BRUSH );
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}
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else
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{
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hBrush = GetStockObject( BLACK_BRUSH );
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textColor = RGB( 0xFF, 0xFF, 0xFF );
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}
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}
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GetClientRect( hwnd, &rect );
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DPtoLP( hDC, (LPPOINT)&rect, 2 );
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FillRect( hDC, &rect, hBrush );
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hPrevFont = SelectObject( hDC, hIconTitleFont );
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if( hPrevFont )
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{
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WCHAR buffer[80];
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INT length = GetWindowTextW( owner, buffer, ARRAY_SIZE( buffer ));
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SetTextColor( hDC, textColor );
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SetBkMode( hDC, TRANSPARENT );
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DrawTextW( hDC, buffer, length, &rect, DT_CENTER | DT_NOPREFIX |
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DT_WORDBREAK | ((bMultiLineTitle) ? 0 : DT_SINGLELINE) );
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SelectObject( hDC, hPrevFont );
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}
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return (hPrevFont != 0);
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}
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/***********************************************************************
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* IconTitleWndProc
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*/
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LRESULT WINAPI IconTitleWndProc( HWND hWnd, UINT msg,
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WPARAM wParam, LPARAM lParam )
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{
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HWND owner = GetWindow( hWnd, GW_OWNER );
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if (!IsWindow(hWnd)) return 0;
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switch( msg )
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{
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case WM_CREATE:
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if (!hIconTitleFont)
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{
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LOGFONTA logFont;
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SystemParametersInfoA( SPI_GETICONTITLELOGFONT, 0, &logFont, 0 );
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SystemParametersInfoA( SPI_GETICONTITLEWRAP, 0, &bMultiLineTitle, 0 );
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hIconTitleFont = CreateFontIndirectA( &logFont );
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}
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return (hIconTitleFont ? 0 : -1);
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case WM_NCHITTEST:
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return HTCAPTION;
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case WM_NCMOUSEMOVE:
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case WM_NCLBUTTONDBLCLK:
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return SendMessageW( owner, msg, wParam, lParam );
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case WM_ACTIVATE:
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if( wParam ) SetActiveWindow( owner );
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return 0;
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case WM_CLOSE:
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return 0;
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case WM_SHOWWINDOW:
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if (wParam) ICONTITLE_SetTitlePos( hWnd, owner );
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return 0;
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case WM_ERASEBKGND:
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if( GetWindowLongW( owner, GWL_STYLE ) & WS_CHILD )
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lParam = SendMessageW( owner, WM_ISACTIVEICON, 0, 0 );
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else
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lParam = (owner == GetActiveWindow());
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if( ICONTITLE_Paint( hWnd, owner, (HDC)wParam, (BOOL)lParam ) )
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ValidateRect( hWnd, NULL );
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return 1;
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}
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return DefWindowProcW( hWnd, msg, wParam, lParam );
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}
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