controls/icontitle.c

   1 /*
   2  * Icontitle window class.
   3  *
   4  * Copyright 1997 Alex Korobka
   5  */
   6
   7 #include <stdio.h>
   8 #include <string.h>
   9 #include <unistd.h>
  10 #include "winuser.h"
  11 #include "wine/winuser16.h"
  12 #include "sysmetrics.h"
  13 #include "win.h"
  14 #include "desktop.h"
  15 #include "heap.h"
  16
  17 static  LPCSTR  emptyTitleText = "<...>";
  18
  19         BOOL    bMultiLineTitle;
  20         HFONT   hIconTitleFont;
  21
  22 /***********************************************************************
  23  *           ICONTITLE_Init
  24  */
  25 BOOL ICONTITLE_Init(void)
  26 {
  27     LOGFONTA logFont;
  28
  29     SystemParametersInfoA( SPI_GETICONTITLELOGFONT, 0, &logFont, 0 );
  30     SystemParametersInfoA( SPI_GETICONTITLEWRAP, 0, &bMultiLineTitle, 0 );
  31     hIconTitleFont = CreateFontIndirectA( &logFont );
  32     return (hIconTitleFont) ? TRUE : FALSE;
  33 }
  34
  35 /***********************************************************************
  36  *           ICONTITLE_Create
  37  */
  38 HWND ICONTITLE_Create( WND* wnd )
  39 {
  40     WND* wndPtr;
  41     HWND hWnd;
  42
  43     if( wnd->dwStyle & WS_CHILD )
  44         hWnd = CreateWindowExA( 0, ICONTITLE_CLASS_ATOM, NULL,
  45                                   WS_CHILD | WS_CLIPSIBLINGS, 0, 0, 1, 1,
  46                                   wnd->parent->hwndSelf, 0, wnd->hInstance, NULL );
  47     else
  48         hWnd = CreateWindowExA( 0, ICONTITLE_CLASS_ATOM, NULL,
  49                                   WS_CLIPSIBLINGS, 0, 0, 1, 1,
  50                                   wnd->hwndSelf, 0, wnd->hInstance, NULL );
  51     wndPtr = WIN_FindWndPtr( hWnd );
  52     if( wndPtr )
  53     {
  54         wndPtr->owner = wnd;    /* MDI depends on this */
  55         wndPtr->dwStyle &= ~(WS_CAPTION | WS_BORDER);
  56         if( wnd->dwStyle & WS_DISABLED ) wndPtr->dwStyle |= WS_DISABLED;
  57         WIN_ReleaseWndPtr(wndPtr);
  58         return hWnd;
  59     }
  60     return 0;
  61 }
  62
  63 /***********************************************************************
  64  *           ICONTITLE_GetTitlePos
  65  */
  66 static BOOL ICONTITLE_GetTitlePos( WND* wnd, LPRECT lpRect )
  67 {
  68     LPSTR str;
  69     int length = lstrlenA( wnd->owner->text );
  70
  71     if( length )
  72     {
  73         str = HeapAlloc( GetProcessHeap(), 0, length + 1 );
  74         lstrcpyA( str, wnd->owner->text );
  75         while( str[length - 1] == ' ' ) /* remove trailing spaces */
  76         {
  77             str[--length] = '\0';
  78             if( !length )
  79             {
  80                 HeapFree( GetProcessHeap(), 0, str );
  81                 break;
  82             }
  83         }
  84     }
  85     if( !length )
  86     {
  87         str = (LPSTR)emptyTitleText;
  88         length = lstrlenA( str );
  89     }
  90
  91     if( str )
  92     {
  93         HDC hDC = GetDC( wnd->hwndSelf );
  94         if( hDC )
  95         {
  96             HFONT hPrevFont = SelectObject( hDC, hIconTitleFont );
  97
  98             SetRect( lpRect, 0, 0, sysMetrics[SM_CXICONSPACING] -
  99                        SYSMETRICS_CXBORDER * 2, SYSMETRICS_CYBORDER * 2 );
 100
 101             DrawTextA( hDC, str, length, lpRect, DT_CALCRECT |
 102                          DT_CENTER | DT_NOPREFIX | DT_WORDBREAK |
 103                          (( bMultiLineTitle ) ? 0 : DT_SINGLELINE) );
 104
 105             SelectObject( hDC, hPrevFont );
 106             ReleaseDC( wnd->hwndSelf, hDC );
 107
 108             lpRect->right += 4 * SYSMETRICS_CXBORDER - lpRect->left;
 109             lpRect->left = wnd->owner->rectWindow.left + SYSMETRICS_CXICON / 2 -
 110                                       (lpRect->right - lpRect->left) / 2;
 111             lpRect->bottom -= lpRect->top;
 112             lpRect->top = wnd->owner->rectWindow.top + SYSMETRICS_CYICON;
 113         }
 114         if( str != emptyTitleText ) HeapFree( GetProcessHeap(), 0, str );
 115         return ( hDC ) ? TRUE : FALSE;
 116     }
 117     return FALSE;
 118 }
 119
 120 /***********************************************************************
 121  *           ICONTITLE_Paint
 122  */
 123 static BOOL ICONTITLE_Paint( WND* wnd, HDC hDC, BOOL bActive )
 124 {
 125     HFONT hPrevFont;
 126     HBRUSH hBrush = 0;
 127     COLORREF textColor = 0;
 128
 129     if( bActive )
 130     {
 131         hBrush = GetSysColorBrush(COLOR_ACTIVECAPTION);
 132         textColor = GetSysColor(COLOR_CAPTIONTEXT);
 133     }
 134     else
 135     {
 136         if( wnd->dwStyle & WS_CHILD )
 137         {
 138             hBrush = wnd->parent->class->hbrBackground;
 139             if( hBrush )
 140             {
 141                 INT level;
 142                 LOGBRUSH logBrush;
 143                 GetObjectA( hBrush, sizeof(logBrush), &logBrush );
 144                 level = GetRValue(logBrush.lbColor) +
 145                            GetGValue(logBrush.lbColor) +
 146                               GetBValue(logBrush.lbColor);
 147                 if( level < (0x7F * 3) )
 148                     textColor = RGB( 0xFF, 0xFF, 0xFF );
 149             }
 150             else
 151                 hBrush = GetStockObject( WHITE_BRUSH );
 152         }
 153         else
 154         {
 155             hBrush = GetStockObject( BLACK_BRUSH );
 156             textColor = RGB( 0xFF, 0xFF, 0xFF );
 157         }
 158     }
 159
 160     FillWindow16( wnd->parent->hwndSelf, wnd->hwndSelf, hDC, hBrush );
 161
 162     hPrevFont = SelectObject( hDC, hIconTitleFont );
 163     if( hPrevFont )
 164     {
 165         RECT  rect;
 166         INT     length;
 167         char    buffer[80];
 168
 169         rect.left = rect.top = 0;
 170         rect.right = wnd->rectWindow.right - wnd->rectWindow.left;
 171         rect.bottom = wnd->rectWindow.bottom - wnd->rectWindow.top;
 172
 173         length = GetWindowTextA( wnd->owner->hwndSelf, buffer, 80 );
 174         SetTextColor( hDC, textColor );
 175         SetBkMode( hDC, TRANSPARENT );
 176
 177         DrawTextA( hDC, buffer, length, &rect, DT_CENTER | DT_NOPREFIX |
 178                      DT_WORDBREAK | ((bMultiLineTitle) ? 0 : DT_SINGLELINE) );
 179
 180         SelectObject( hDC, hPrevFont );
 181     }
 182     return ( hPrevFont ) ? TRUE : FALSE;
 183 }
 184
 185 /***********************************************************************
 186  *           IconTitleWndProc
 187  */
 188 LRESULT WINAPI IconTitleWndProc( HWND hWnd, UINT msg,
 189                                  WPARAM wParam, LPARAM lParam )
 190 {
 191     LRESULT retvalue;
 192     WND *wnd = WIN_FindWndPtr( hWnd );
 193
 194     switch( msg )
 195     {
 196         case WM_NCHITTEST:
 197              retvalue = HTCAPTION;
 198              goto END;
 199         case WM_NCMOUSEMOVE:
 200         case WM_NCLBUTTONDBLCLK:
 201              retvalue = SendMessageA( wnd->owner->hwndSelf, msg, wParam, lParam );
 202              goto END;
 203         case WM_ACTIVATE:
 204              if( wParam ) SetActiveWindow( wnd->owner->hwndSelf );
 205              /* fall through */
 206
 207         case WM_CLOSE:
 208              retvalue = 0;
 209              goto END;
 210         case WM_SHOWWINDOW:
 211              if( wnd && wParam )
 212              {
 213                  RECT titleRect;
 214
 215                  ICONTITLE_GetTitlePos( wnd, &titleRect );
 216                  if( wnd->owner->next != wnd )  /* keep icon title behind the owner */
 217                      SetWindowPos( hWnd, wnd->owner->hwndSelf,
 218                                      titleRect.left, titleRect.top,
 219                                      titleRect.right, titleRect.bottom, SWP_NOACTIVATE );
 220                  else
 221                      SetWindowPos( hWnd, 0, titleRect.left, titleRect.top,
 222                                      titleRect.right, titleRect.bottom,
 223                                      SWP_NOACTIVATE | SWP_NOZORDER );
 224              }
 225              retvalue = 0;
 226              goto END;
 227         case WM_ERASEBKGND:
 228              if( wnd )
 229              {
 230                  WND* iconWnd = WIN_LockWndPtr(wnd->owner);
 231
 232                  if( iconWnd->dwStyle & WS_CHILD )
 233                      lParam = SendMessageA( iconWnd->hwndSelf, WM_ISACTIVEICON, 0, 0 );
 234                  else
 235                      lParam = (iconWnd->hwndSelf == GetActiveWindow16());
 236
 237                  WIN_ReleaseWndPtr(iconWnd);
 238                  if( ICONTITLE_Paint( wnd, (HDC)wParam, (BOOL)lParam ) )
 239                      ValidateRect( hWnd, NULL );
 240                  retvalue = 1;
 241                  goto END;
 242              }
 243     }
 244
 245     retvalue = DefWindowProcA( hWnd, msg, wParam, lParam );
 246 END:
 247     WIN_ReleaseWndPtr(wnd);
 248     return retvalue;
 249 }
 250
 251