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 "windef.h"
  11 #include "wingdi.h"
  12 #include "winuser.h"
  13 #include "wine/winuser16.h"
  14 #include "win.h"
  15 #include "desktop.h"
  16 #include "heap.h"
  17
  18 static  LPCSTR  emptyTitleText = "<...>";
  19
  20         BOOL    bMultiLineTitle;
  21         HFONT   hIconTitleFont;
  22
  23 /***********************************************************************
  24  *           ICONTITLE_Init
  25  */
  26 BOOL ICONTITLE_Init(void)
  27 {
  28     LOGFONTA logFont;
  29
  30     SystemParametersInfoA( SPI_GETICONTITLELOGFONT, 0, &logFont, 0 );
  31     SystemParametersInfoA( SPI_GETICONTITLEWRAP, 0, &bMultiLineTitle, 0 );
  32     hIconTitleFont = CreateFontIndirectA( &logFont );
  33     return (hIconTitleFont) ? TRUE : FALSE;
  34 }
  35
  36 /***********************************************************************
  37  *           ICONTITLE_Create
  38  */
  39 HWND ICONTITLE_Create( WND* wnd )
  40 {
  41     WND* wndPtr;
  42     HWND hWnd;
  43
  44     if( wnd->dwStyle & WS_CHILD )
  45         hWnd = CreateWindowExA( 0, ICONTITLE_CLASS_ATOM, NULL,
  46                                   WS_CHILD | WS_CLIPSIBLINGS, 0, 0, 1, 1,
  47                                   wnd->parent->hwndSelf, 0, wnd->hInstance, NULL );
  48     else
  49         hWnd = CreateWindowExA( 0, ICONTITLE_CLASS_ATOM, NULL,
  50                                   WS_CLIPSIBLINGS, 0, 0, 1, 1,
  51                                   wnd->hwndSelf, 0, wnd->hInstance, NULL );
  52     wndPtr = WIN_FindWndPtr( hWnd );
  53     if( wndPtr )
  54     {
  55         wndPtr->owner = wnd;    /* MDI depends on this */
  56         wndPtr->dwStyle &= ~(WS_CAPTION | WS_BORDER);
  57         if( wnd->dwStyle & WS_DISABLED ) wndPtr->dwStyle |= WS_DISABLED;
  58         WIN_ReleaseWndPtr(wndPtr);
  59         return hWnd;
  60     }
  61     return 0;
  62 }
  63
  64 /***********************************************************************
  65  *           ICONTITLE_GetTitlePos
  66  */
  67 static BOOL ICONTITLE_GetTitlePos( WND* wnd, LPRECT lpRect )
  68 {
  69     LPSTR str;
  70     int length = lstrlenA( wnd->owner->text );
  71
  72     if( length )
  73     {
  74         str = HeapAlloc( GetProcessHeap(), 0, length + 1 );
  75         lstrcpyA( str, wnd->owner->text );
  76         while( str[length - 1] == ' ' ) /* remove trailing spaces */
  77         {
  78             str[--length] = '\0';
  79             if( !length )
  80             {
  81                 HeapFree( GetProcessHeap(), 0, str );
  82                 break;
  83             }
  84         }
  85     }
  86     if( !length )
  87     {
  88         str = (LPSTR)emptyTitleText;
  89         length = lstrlenA( str );
  90     }
  91
  92     if( str )
  93     {
  94         HDC hDC = GetDC( wnd->hwndSelf );
  95         if( hDC )
  96         {
  97             HFONT hPrevFont = SelectObject( hDC, hIconTitleFont );
  98
  99             SetRect( lpRect, 0, 0, GetSystemMetrics(SM_CXICONSPACING) -
 100                        GetSystemMetrics(SM_CXBORDER) * 2,
 101                        GetSystemMetrics(SM_CYBORDER) * 2 );
 102
 103             DrawTextA( hDC, str, length, lpRect, DT_CALCRECT |
 104                          DT_CENTER | DT_NOPREFIX | DT_WORDBREAK |
 105                          (( bMultiLineTitle ) ? 0 : DT_SINGLELINE) );
 106
 107             SelectObject( hDC, hPrevFont );
 108             ReleaseDC( wnd->hwndSelf, hDC );
 109
 110             lpRect->right += 4 * GetSystemMetrics(SM_CXBORDER) - lpRect->left;
 111             lpRect->left = wnd->owner->rectWindow.left + GetSystemMetrics(SM_CXICON) / 2 -
 112                                       (lpRect->right - lpRect->left) / 2;
 113             lpRect->bottom -= lpRect->top;
 114             lpRect->top = wnd->owner->rectWindow.top + GetSystemMetrics(SM_CYICON);
 115         }
 116         if( str != emptyTitleText ) HeapFree( GetProcessHeap(), 0, str );
 117         return ( hDC ) ? TRUE : FALSE;
 118     }
 119     return FALSE;
 120 }
 121
 122 /***********************************************************************
 123  *           ICONTITLE_Paint
 124  */
 125 static BOOL ICONTITLE_Paint( WND* wnd, HDC hDC, BOOL bActive )
 126 {
 127     HFONT hPrevFont;
 128     HBRUSH hBrush = 0;
 129     COLORREF textColor = 0;
 130
 131     if( bActive )
 132     {
 133         hBrush = GetSysColorBrush(COLOR_ACTIVECAPTION);
 134         textColor = GetSysColor(COLOR_CAPTIONTEXT);
 135     }
 136     else
 137     {
 138         if( wnd->dwStyle & WS_CHILD )
 139         {
 140             hBrush = (HBRUSH) GetClassLongA(wnd->hwndSelf, GCL_HBRBACKGROUND);
 141             if( hBrush )
 142             {
 143                 INT level;
 144                 LOGBRUSH logBrush;
 145                 GetObjectA( hBrush, sizeof(logBrush), &logBrush );
 146                 level = GetRValue(logBrush.lbColor) +
 147                            GetGValue(logBrush.lbColor) +
 148                               GetBValue(logBrush.lbColor);
 149                 if( level < (0x7F * 3) )
 150                     textColor = RGB( 0xFF, 0xFF, 0xFF );
 151             }
 152             else
 153                 hBrush = GetStockObject( WHITE_BRUSH );
 154         }
 155         else
 156         {
 157             hBrush = GetStockObject( BLACK_BRUSH );
 158             textColor = RGB( 0xFF, 0xFF, 0xFF );
 159         }
 160     }
 161
 162     FillWindow16( wnd->parent->hwndSelf, wnd->hwndSelf, hDC, hBrush );
 163
 164     hPrevFont = SelectObject( hDC, hIconTitleFont );
 165     if( hPrevFont )
 166     {
 167         RECT  rect;
 168         INT     length;
 169         char    buffer[80];
 170
 171         rect.left = rect.top = 0;
 172         rect.right = wnd->rectWindow.right - wnd->rectWindow.left;
 173         rect.bottom = wnd->rectWindow.bottom - wnd->rectWindow.top;
 174
 175         length = GetWindowTextA( wnd->owner->hwndSelf, buffer, 80 );
 176         SetTextColor( hDC, textColor );
 177         SetBkMode( hDC, TRANSPARENT );
 178
 179         DrawTextA( hDC, buffer, length, &rect, DT_CENTER | DT_NOPREFIX |
 180                      DT_WORDBREAK | ((bMultiLineTitle) ? 0 : DT_SINGLELINE) );
 181
 182         SelectObject( hDC, hPrevFont );
 183     }
 184     return ( hPrevFont ) ? TRUE : FALSE;
 185 }
 186
 187 /***********************************************************************
 188  *           IconTitleWndProc
 189  */
 190 LRESULT WINAPI IconTitleWndProc( HWND hWnd, UINT msg,
 191                                  WPARAM wParam, LPARAM lParam )
 192 {
 193     LRESULT retvalue;
 194     WND *wnd = WIN_FindWndPtr( hWnd );
 195
 196     switch( msg )
 197     {
 198         case WM_NCHITTEST:
 199              retvalue = HTCAPTION;
 200              goto END;
 201         case WM_NCMOUSEMOVE:
 202         case WM_NCLBUTTONDBLCLK:
 203              retvalue = SendMessageA( wnd->owner->hwndSelf, msg, wParam, lParam );
 204              goto END;
 205         case WM_ACTIVATE:
 206              if( wParam ) SetActiveWindow( wnd->owner->hwndSelf );
 207              /* fall through */
 208
 209         case WM_CLOSE:
 210              retvalue = 0;
 211              goto END;
 212         case WM_SHOWWINDOW:
 213              if( wnd && wParam )
 214              {
 215                  RECT titleRect;
 216
 217                  ICONTITLE_GetTitlePos( wnd, &titleRect );
 218                  if( wnd->owner->next != wnd )  /* keep icon title behind the owner */
 219                      SetWindowPos( hWnd, wnd->owner->hwndSelf,
 220                                      titleRect.left, titleRect.top,
 221                                      titleRect.right, titleRect.bottom, SWP_NOACTIVATE );
 222                  else
 223                      SetWindowPos( hWnd, 0, titleRect.left, titleRect.top,
 224                                      titleRect.right, titleRect.bottom,
 225                                      SWP_NOACTIVATE | SWP_NOZORDER );
 226              }
 227              retvalue = 0;
 228              goto END;
 229         case WM_ERASEBKGND:
 230              if( wnd )
 231              {
 232                  WND* iconWnd = WIN_LockWndPtr(wnd->owner);
 233
 234                  if( iconWnd->dwStyle & WS_CHILD )
 235                      lParam = SendMessageA( iconWnd->hwndSelf, WM_ISACTIVEICON, 0, 0 );
 236                  else
 237                      lParam = (iconWnd->hwndSelf == GetActiveWindow16());
 238
 239                  WIN_ReleaseWndPtr(iconWnd);
 240                  if( ICONTITLE_Paint( wnd, (HDC)wParam, (BOOL)lParam ) )
 241                      ValidateRect( hWnd, NULL );
 242                  retvalue = 1;
 243                  goto END;
 244              }
 245     }
 246
 247     retvalue = DefWindowProcA( hWnd, msg, wParam, lParam );
 248 END:
 249     WIN_ReleaseWndPtr(wnd);
 250     return retvalue;
 251 }
 252
 253