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