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
  11 #include "windef.h"
  12 #include "winbase.h"
  13 #include "wingdi.h"
  14 #include "winuser.h"
  15 #include "wine/winuser16.h"
  16 #include "wine/unicode.h"
  17 #include "controls.h"
  18 #include "win.h"
  19 #include "heap.h"
  20
  21 static BOOL bMultiLineTitle;
  22 static HFONT hIconTitleFont;
  23
  24 static LRESULT WINAPI IconTitleWndProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam );
  25
  26 /*********************************************************************
  27  * icon title class descriptor
  28  */
  29 const struct builtin_class_descr ICONTITLE_builtin_class =
  30 {
  31     ICONTITLE_CLASS_ATOM, /* name */
  32     CS_GLOBALCLASS,       /* style */
  33     NULL,                 /* procA (winproc is Unicode only) */
  34     IconTitleWndProc,     /* procW */
  35     0,                    /* extra */
  36     IDC_ARROWA,           /* cursor */
  37     0                     /* brush */
  38 };
  39
  40
  41
  42 /***********************************************************************
  43  *           ICONTITLE_Create
  44  */
  45 HWND ICONTITLE_Create( WND* wnd )
  46 {
  47     WND* wndPtr;
  48     HWND hWnd;
  49
  50     if( wnd->dwStyle & WS_CHILD )
  51         hWnd = CreateWindowExA( 0, ICONTITLE_CLASS_ATOM, NULL,
  52                                   WS_CHILD | WS_CLIPSIBLINGS, 0, 0, 1, 1,
  53                                   wnd->parent->hwndSelf, 0, wnd->hInstance, NULL );
  54     else
  55         hWnd = CreateWindowExA( 0, ICONTITLE_CLASS_ATOM, NULL,
  56                                   WS_CLIPSIBLINGS, 0, 0, 1, 1,
  57                                   wnd->hwndSelf, 0, wnd->hInstance, NULL );
  58     wndPtr = WIN_FindWndPtr( hWnd );
  59     if( wndPtr )
  60     {
  61         wndPtr->owner = wnd;    /* MDI depends on this */
  62         wndPtr->dwStyle &= ~(WS_CAPTION | WS_BORDER);
  63         if( wnd->dwStyle & WS_DISABLED ) wndPtr->dwStyle |= WS_DISABLED;
  64         WIN_ReleaseWndPtr(wndPtr);
  65         return hWnd;
  66     }
  67     return 0;
  68 }
  69
  70 /***********************************************************************
  71  *           ICONTITLE_GetTitlePos
  72  */
  73 static BOOL ICONTITLE_GetTitlePos( WND* wnd, LPRECT lpRect )
  74 {
  75     static WCHAR emptyTitleText[] = {'<','.','.','.','>',0};
  76     LPWSTR str = NULL;
  77     int length = lstrlenW( wnd->owner->text );
  78
  79     if( length )
  80     {
  81         str = HeapAlloc( GetProcessHeap(), 0, (length + 1) * sizeof(WCHAR) );
  82         strcpyW( str, wnd->owner->text );
  83         while( str[length - 1] == ' ' ) /* remove trailing spaces */
  84         {
  85             str[--length] = '\0';
  86             if( !length )
  87             {
  88                 HeapFree( GetProcessHeap(), 0, str );
  89                 break;
  90             }
  91         }
  92     }
  93     if( !length )
  94     {
  95         str = emptyTitleText;
  96         length = lstrlenW( str );
  97     }
  98
  99     if( str )
 100     {
 101         HDC hDC = GetDC( wnd->hwndSelf );
 102         if( hDC )
 103         {
 104             HFONT hPrevFont = SelectObject( hDC, hIconTitleFont );
 105
 106             SetRect( lpRect, 0, 0, GetSystemMetrics(SM_CXICONSPACING) -
 107                        GetSystemMetrics(SM_CXBORDER) * 2,
 108                        GetSystemMetrics(SM_CYBORDER) * 2 );
 109
 110             DrawTextW( hDC, str, length, lpRect, DT_CALCRECT |
 111                          DT_CENTER | DT_NOPREFIX | DT_WORDBREAK |
 112                          (( bMultiLineTitle ) ? 0 : DT_SINGLELINE) );
 113
 114             SelectObject( hDC, hPrevFont );
 115             ReleaseDC( wnd->hwndSelf, hDC );
 116
 117             lpRect->right += 4 * GetSystemMetrics(SM_CXBORDER) - lpRect->left;
 118             lpRect->left = wnd->owner->rectWindow.left + GetSystemMetrics(SM_CXICON) / 2 -
 119                                       (lpRect->right - lpRect->left) / 2;
 120             lpRect->bottom -= lpRect->top;
 121             lpRect->top = wnd->owner->rectWindow.top + GetSystemMetrics(SM_CYICON);
 122         }
 123         if( str != emptyTitleText ) HeapFree( GetProcessHeap(), 0, str );
 124         return ( hDC ) ? TRUE : FALSE;
 125     }
 126     return FALSE;
 127 }
 128
 129 /***********************************************************************
 130  *           ICONTITLE_Paint
 131  */
 132 static BOOL ICONTITLE_Paint( WND* wnd, HDC hDC, BOOL bActive )
 133 {
 134     HFONT hPrevFont;
 135     HBRUSH hBrush = 0;
 136     COLORREF textColor = 0;
 137
 138     if( bActive )
 139     {
 140         hBrush = GetSysColorBrush(COLOR_ACTIVECAPTION);
 141         textColor = GetSysColor(COLOR_CAPTIONTEXT);
 142     }
 143     else
 144     {
 145         if( wnd->dwStyle & WS_CHILD )
 146         {
 147             hBrush = (HBRUSH) GetClassLongA(wnd->hwndSelf, GCL_HBRBACKGROUND);
 148             if( hBrush )
 149             {
 150                 INT level;
 151                 LOGBRUSH logBrush;
 152                 GetObjectA( hBrush, sizeof(logBrush), &logBrush );
 153                 level = GetRValue(logBrush.lbColor) +
 154                            GetGValue(logBrush.lbColor) +
 155                               GetBValue(logBrush.lbColor);
 156                 if( level < (0x7F * 3) )
 157                     textColor = RGB( 0xFF, 0xFF, 0xFF );
 158             }
 159             else
 160                 hBrush = GetStockObject( WHITE_BRUSH );
 161         }
 162         else
 163         {
 164             hBrush = GetStockObject( BLACK_BRUSH );
 165             textColor = RGB( 0xFF, 0xFF, 0xFF );
 166         }
 167     }
 168
 169     FillWindow16( wnd->parent->hwndSelf, wnd->hwndSelf, hDC, hBrush );
 170
 171     hPrevFont = SelectObject( hDC, hIconTitleFont );
 172     if( hPrevFont )
 173     {
 174         RECT  rect;
 175         INT     length;
 176         char    buffer[80];
 177
 178         rect.left = rect.top = 0;
 179         rect.right = wnd->rectWindow.right - wnd->rectWindow.left;
 180         rect.bottom = wnd->rectWindow.bottom - wnd->rectWindow.top;
 181
 182         length = GetWindowTextA( wnd->owner->hwndSelf, buffer, 80 );
 183         SetTextColor( hDC, textColor );
 184         SetBkMode( hDC, TRANSPARENT );
 185
 186         DrawTextA( hDC, buffer, length, &rect, DT_CENTER | DT_NOPREFIX |
 187                      DT_WORDBREAK | ((bMultiLineTitle) ? 0 : DT_SINGLELINE) );
 188
 189         SelectObject( hDC, hPrevFont );
 190     }
 191     return ( hPrevFont ) ? TRUE : FALSE;
 192 }
 193
 194 /***********************************************************************
 195  *           IconTitleWndProc
 196  */
 197 LRESULT WINAPI IconTitleWndProc( HWND hWnd, UINT msg,
 198                                  WPARAM wParam, LPARAM lParam )
 199 {
 200     LRESULT retvalue;
 201     WND *wnd = WIN_FindWndPtr( hWnd );
 202
 203     switch( msg )
 204     {
 205         case WM_CREATE:
 206             if (!hIconTitleFont)
 207             {
 208                 LOGFONTA logFont;
 209                 SystemParametersInfoA( SPI_GETICONTITLELOGFONT, 0, &logFont, 0 );
 210                 SystemParametersInfoA( SPI_GETICONTITLEWRAP, 0, &bMultiLineTitle, 0 );
 211                 hIconTitleFont = CreateFontIndirectA( &logFont );
 212             }
 213             retvalue = (hIconTitleFont) ? 0 : -1;
 214             goto END;
 215         case WM_NCHITTEST:
 216              retvalue = HTCAPTION;
 217              goto END;
 218         case WM_NCMOUSEMOVE:
 219         case WM_NCLBUTTONDBLCLK:
 220              retvalue = SendMessageA( wnd->owner->hwndSelf, msg, wParam, lParam );
 221              goto END;
 222         case WM_ACTIVATE:
 223              if( wParam ) SetActiveWindow( wnd->owner->hwndSelf );
 224              /* fall through */
 225
 226         case WM_CLOSE:
 227              retvalue = 0;
 228              goto END;
 229         case WM_SHOWWINDOW:
 230              if( wnd && wParam )
 231              {
 232                  RECT titleRect;
 233
 234                  ICONTITLE_GetTitlePos( wnd, &titleRect );
 235                  if( wnd->owner->next != wnd )  /* keep icon title behind the owner */
 236                      SetWindowPos( hWnd, wnd->owner->hwndSelf,
 237                                      titleRect.left, titleRect.top,
 238                                      titleRect.right, titleRect.bottom, SWP_NOACTIVATE );
 239                  else
 240                      SetWindowPos( hWnd, 0, titleRect.left, titleRect.top,
 241                                      titleRect.right, titleRect.bottom,
 242                                      SWP_NOACTIVATE | SWP_NOZORDER );
 243              }
 244              retvalue = 0;
 245              goto END;
 246         case WM_ERASEBKGND:
 247              if( wnd )
 248              {
 249                  WND* iconWnd = WIN_LockWndPtr(wnd->owner);
 250
 251                  if( iconWnd->dwStyle & WS_CHILD )
 252                      lParam = SendMessageA( iconWnd->hwndSelf, WM_ISACTIVEICON, 0, 0 );
 253                  else
 254                      lParam = (iconWnd->hwndSelf == GetActiveWindow16());
 255
 256                  WIN_ReleaseWndPtr(iconWnd);
 257                  if( ICONTITLE_Paint( wnd, (HDC)wParam, (BOOL)lParam ) )
 258                      ValidateRect( hWnd, NULL );
 259                  retvalue = 1;
 260                  goto END;
 261              }
 262     }
 263
 264     retvalue = DefWindowProcW( hWnd, msg, wParam, lParam );
 265 END:
 266     WIN_ReleaseWndPtr(wnd);
 267     return retvalue;
 268 }
 269
 270