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 "windows.h"
  11 #include "sysmetrics.h"
  12 #include "win.h"
  13 #include "desktop.h"
  14 #include "graphics.h"
  15 #include "heap.h"
  16
  17 static  LPCSTR  emptyTitleText = "<...>";
  18
  19         BOOL32  bMultiLineTitle;
  20         HFONT32 hIconTitleFont;
  21
  22 /***********************************************************************
  23  *           ICONTITLE_Init
  24  */
  25 BOOL32 ICONTITLE_Init(void)
  26 {
  27     LOGFONT32A logFont;
  28
  29     SystemParametersInfo32A( SPI_GETICONTITLELOGFONT, 0, &logFont, 0 );
  30     SystemParametersInfo32A( SPI_GETICONTITLEWRAP, 0, &bMultiLineTitle, 0 );
  31     hIconTitleFont = CreateFontIndirect32A( &logFont );
  32     return (hIconTitleFont) ? TRUE : FALSE;
  33 }
  34
  35 /***********************************************************************
  36  *           ICONTITLE_Create
  37  */
  38 HWND32 ICONTITLE_Create( WND* wnd )
  39 {
  40     WND* wndPtr;
  41     HWND32 hWnd;
  42
  43     if( wnd->dwStyle & WS_CHILD )
  44         hWnd = CreateWindowEx32A( 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 = CreateWindowEx32A( 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         return hWnd;
  58     }
  59     return 0;
  60 }
  61
  62 /***********************************************************************
  63  *           ICONTITLE_GetTitlePos
  64  */
  65 static BOOL32 ICONTITLE_GetTitlePos( WND* wnd, LPRECT32 lpRect )
  66 {
  67     LPSTR str;
  68     int length = lstrlen32A( wnd->owner->text );
  69
  70     if( length )
  71     {
  72         str = HeapAlloc( GetProcessHeap(), 0, length + 1 );
  73         lstrcpy32A( str, wnd->owner->text );
  74         while( str[length - 1] == ' ' ) /* remove trailing spaces */
  75         {
  76             str[--length] = '\0';
  77             if( !length )
  78             {
  79                 HeapFree( GetProcessHeap(), 0, str );
  80                 break;
  81             }
  82         }
  83     }
  84     if( !length )
  85     {
  86         str = (LPSTR)emptyTitleText;
  87         length = lstrlen32A( str );
  88     }
  89
  90     if( str )
  91     {
  92         HDC32 hDC = GetDC32( wnd->hwndSelf );
  93         if( hDC )
  94         {
  95             HFONT32 hPrevFont = SelectObject32( hDC, hIconTitleFont );
  96
  97             SetRect32( lpRect, 0, 0, sysMetrics[SM_CXICONSPACING] -
  98                        SYSMETRICS_CXBORDER * 2, SYSMETRICS_CYBORDER * 2 );
  99
 100             DrawText32A( hDC, str, length, lpRect, DT_CALCRECT |
 101                          DT_CENTER | DT_NOPREFIX | DT_WORDBREAK |
 102                          (( bMultiLineTitle ) ? 0 : DT_SINGLELINE) );
 103
 104             SelectObject32( hDC, hPrevFont );
 105             ReleaseDC32( wnd->hwndSelf, hDC );
 106
 107             lpRect->right += 4 * SYSMETRICS_CXBORDER - lpRect->left;
 108             lpRect->left = wnd->owner->rectWindow.left + SYSMETRICS_CXICON / 2 -
 109                                       (lpRect->right - lpRect->left) / 2;
 110             lpRect->bottom -= lpRect->top;
 111             lpRect->top = wnd->owner->rectWindow.top + SYSMETRICS_CYICON;
 112         }
 113         if( str != emptyTitleText ) HeapFree( GetProcessHeap(), 0, str );
 114         return ( hDC ) ? TRUE : FALSE;
 115     }
 116     return FALSE;
 117 }
 118
 119 /***********************************************************************
 120  *           ICONTITLE_Paint
 121  */
 122 static BOOL32 ICONTITLE_Paint( WND* wnd, HDC32 hDC, BOOL32 bActive )
 123 {
 124     HFONT32 hPrevFont;
 125     HBRUSH32 hBrush = 0;
 126     COLORREF textColor = 0;
 127
 128     if( bActive )
 129     {
 130         hBrush = GetSysColorBrush32(COLOR_ACTIVECAPTION);
 131         textColor = GetSysColor32(COLOR_CAPTIONTEXT);
 132     }
 133     else
 134     {
 135         if( wnd->dwStyle & WS_CHILD )
 136         {
 137             hBrush = wnd->parent->class->hbrBackground;
 138             if( hBrush )
 139             {
 140                 INT32 level;
 141                 LOGBRUSH32 logBrush;
 142                 GetObject32A( hBrush, sizeof(logBrush), &logBrush );
 143                 level = GetRValue(logBrush.lbColor) +
 144                            GetGValue(logBrush.lbColor) +
 145                               GetBValue(logBrush.lbColor);
 146                 if( level < (0x7F * 3) )
 147                     textColor = RGB( 0xFF, 0xFF, 0xFF );
 148             }
 149             else
 150                 hBrush = GetStockObject32( WHITE_BRUSH );
 151         }
 152         else
 153         {
 154             hBrush = GetStockObject32( BLACK_BRUSH );
 155             textColor = RGB( 0xFF, 0xFF, 0xFF );
 156         }
 157     }
 158
 159     FillWindow( wnd->parent->hwndSelf, wnd->hwndSelf, hDC, hBrush );
 160
 161     hPrevFont = SelectObject32( hDC, hIconTitleFont );
 162     if( hPrevFont )
 163     {
 164         RECT32  rect;
 165         INT32   length;
 166         char    buffer[80];
 167
 168         rect.left = rect.top = 0;
 169         rect.right = wnd->rectWindow.right - wnd->rectWindow.left;
 170         rect.bottom = wnd->rectWindow.bottom - wnd->rectWindow.top;
 171
 172         length = GetWindowText32A( wnd->owner->hwndSelf, buffer, 80 );
 173         SetTextColor32( hDC, textColor );
 174         SetBkMode32( hDC, TRANSPARENT );
 175
 176         DrawText32A( hDC, buffer, length, &rect, DT_CENTER | DT_NOPREFIX |
 177                      DT_WORDBREAK | ((bMultiLineTitle) ? 0 : DT_SINGLELINE) );
 178
 179         SelectObject32( hDC, hPrevFont );
 180     }
 181     return ( hPrevFont ) ? TRUE : FALSE;
 182 }
 183
 184 /***********************************************************************
 185  *           IconTitleWndProc
 186  */
 187 LRESULT WINAPI IconTitleWndProc( HWND32 hWnd, UINT32 msg,
 188                                  WPARAM32 wParam, LPARAM lParam )
 189 {
 190     WND *wnd = WIN_FindWndPtr( hWnd );
 191
 192     switch( msg )
 193     {
 194         case WM_NCHITTEST:
 195              return HTCAPTION;
 196
 197         case WM_NCMOUSEMOVE:
 198         case WM_NCLBUTTONDBLCLK:
 199              return SendMessage32A( wnd->owner->hwndSelf, msg, wParam, lParam );
 200
 201         case WM_ACTIVATE:
 202              if( wParam ) SetActiveWindow32( wnd->owner->hwndSelf );
 203              /* fall through */
 204
 205         case WM_CLOSE:
 206              return 0;
 207
 208         case WM_SHOWWINDOW:
 209              if( wnd && wParam )
 210              {
 211                  RECT32 titleRect;
 212
 213                  ICONTITLE_GetTitlePos( wnd, &titleRect );
 214                  if( wnd->owner->next != wnd )  /* keep icon title behind the owner */
 215                      SetWindowPos32( hWnd, wnd->owner->hwndSelf,
 216                                      titleRect.left, titleRect.top,
 217                                      titleRect.right, titleRect.bottom, SWP_NOACTIVATE );
 218                  else
 219                      SetWindowPos32( hWnd, 0, titleRect.left, titleRect.top,
 220                                      titleRect.right, titleRect.bottom,
 221                                      SWP_NOACTIVATE | SWP_NOZORDER );
 222              }
 223              return 0;
 224
 225         case WM_ERASEBKGND:
 226              if( wnd )
 227              {
 228                  WND* iconWnd = wnd->owner;
 229
 230                  if( iconWnd->dwStyle & WS_CHILD )
 231                      lParam = SendMessage32A( iconWnd->hwndSelf, WM_ISACTIVEICON, 0, 0 );
 232                  else
 233                      lParam = (iconWnd->hwndSelf == GetActiveWindow16());
 234
 235                  if( ICONTITLE_Paint( wnd, (HDC32)wParam, (BOOL32)lParam ) )
 236                      ValidateRect32( hWnd, NULL );
 237                  return 1;
 238              }
 239     }
 240
 241     return DefWindowProc32A( hWnd, msg, wParam, lParam );
 242 }
 243
 244