windows/defwnd.c

   1 /*
   2  * Default window procedure
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5  */
   6
   7 static char Copyright[] = "Copyright  Alexandre Julliard, 1993";
   8
   9
  10 #include "windows.h"
  11 #include "win.h"
  12 #include "class.h"
  13 #include "user.h"
  14
  15 extern LONG NC_HandleNCPaint( HWND hwnd, HRGN hrgn );
  16 extern LONG NC_HandleNCActivate( HWND hwnd, WORD wParam );
  17 extern LONG NC_HandleNCCalcSize( HWND hwnd, NCCALCSIZE_PARAMS *params );
  18 extern LONG NC_HandleNCHitTest( HWND hwnd, POINT pt );
  19 extern LONG NC_HandleNCLButtonDown( HWND hwnd, WORD wParam, LONG lParam );
  20 extern LONG NC_HandleNCLButtonDblClk( HWND hwnd, WORD wParam, LONG lParam );
  21 extern LONG NC_HandleSysCommand( HWND hwnd, WORD wParam, POINT pt );
  22 extern LONG NC_HandleSetCursor( HWND hwnd, WORD wParam, LONG lParam );
  23 extern void NC_TrackSysMenu( HWND hwnd ); /* menu.c */
  24
  25
  26
  27 /***********************************************************************
  28  *           DEFWND_SetText
  29  *
  30  * Set the window text.
  31  */
  32 void DEFWND_SetText( HWND hwnd, LPSTR text )
  33 {
  34     LPSTR textPtr;
  35     WND *wndPtr = WIN_FindWndPtr( hwnd );
  36
  37     if (wndPtr->hText) USER_HEAP_FREE( wndPtr->hText );
  38     wndPtr->hText = USER_HEAP_ALLOC( LMEM_MOVEABLE, strlen(text) + 2 );
  39     textPtr = (LPSTR) USER_HEAP_ADDR( wndPtr->hText );
  40     strcpy( textPtr, text );
  41         /* for use by edit control */
  42     *(textPtr + strlen(text) + 1) = '\0';
  43 }
  44
  45
  46 /***********************************************************************
  47  *           DefWindowProc   (USER.107)
  48  */
  49 LONG DefWindowProc( HWND hwnd, WORD msg, WORD wParam, LONG lParam )
  50 {
  51     CLASS * classPtr;
  52     LPSTR textPtr;
  53     int len;
  54     WND * wndPtr = WIN_FindWndPtr( hwnd );
  55
  56 #ifdef DEBUG_MESSAGE
  57     printf( "DefWindowProc: %d %d %d %08x\n", hwnd, msg, wParam, lParam );
  58 #endif
  59
  60     switch(msg)
  61     {
  62     case WM_NCCREATE:
  63         {
  64             CREATESTRUCT * createStruct = (CREATESTRUCT *)lParam;
  65             if (createStruct->lpszName)
  66                 DEFWND_SetText( hwnd, createStruct->lpszName );
  67             return 1;
  68         }
  69
  70     case WM_NCCALCSIZE:
  71         return NC_HandleNCCalcSize( hwnd, (NCCALCSIZE_PARAMS *)lParam );
  72
  73     case WM_NCPAINT:
  74         return NC_HandleNCPaint( hwnd, (HRGN)wParam );
  75
  76     case WM_NCHITTEST:
  77         return NC_HandleNCHitTest( hwnd, MAKEPOINT(lParam) );
  78
  79     case WM_NCLBUTTONDOWN:
  80         return NC_HandleNCLButtonDown( hwnd, wParam, lParam );
  81
  82     case WM_NCLBUTTONDBLCLK:
  83         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
  84
  85     case WM_NCACTIVATE:
  86         return NC_HandleNCActivate( hwnd, wParam );
  87
  88     case WM_NCDESTROY:
  89         {
  90             if (wndPtr->hText) USER_HEAP_FREE(wndPtr->hText);
  91             wndPtr->hText = 0;
  92             return 0;
  93         }
  94
  95     case WM_PAINT:
  96         {
  97             PAINTSTRUCT paintstruct;
  98             BeginPaint( hwnd, &paintstruct );
  99             EndPaint( hwnd, &paintstruct );
 100             return 0;
 101         }
 102
 103     case WM_CLOSE:
 104         DestroyWindow( hwnd );
 105         return 0;
 106
 107     case WM_MOUSEACTIVATE:
 108         if (wndPtr->dwStyle & WS_CHILD)
 109         {
 110             LONG ret = SendMessage( wndPtr->hwndParent, WM_MOUSEACTIVATE,
 111                                     wParam, lParam );
 112             if (ret) return ret;
 113         }
 114         return MA_ACTIVATE;
 115
 116     case WM_ACTIVATE:
 117         if (wParam) SetFocus( hwnd );
 118         break;
 119
 120     case WM_WINDOWPOSCHANGED:
 121         {
 122             WINDOWPOS * winPos = (WINDOWPOS *)lParam;
 123             if (!(winPos->flags & SWP_NOMOVE))
 124                 SendMessage( hwnd, WM_MOVE, 0,
 125                              MAKELONG( wndPtr->rectClient.left,
 126                                        wndPtr->rectClient.top ));
 127             if (!(winPos->flags & SWP_NOSIZE))
 128                 SendMessage( hwnd, WM_SIZE, SIZE_RESTORED,
 129                    MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
 130                             wndPtr->rectClient.bottom-wndPtr->rectClient.top));
 131             return 0;
 132         }
 133
 134     case WM_ERASEBKGND:
 135     case WM_ICONERASEBKGND:
 136         {
 137             if (!(classPtr = CLASS_FindClassPtr( wndPtr->hClass ))) return 1;
 138             if (!classPtr->wc.hbrBackground) return 1;
 139             FillWindow( GetParent(hwnd), hwnd, (HDC)wParam,
 140                         classPtr->wc.hbrBackground );
 141             return 0;
 142         }
 143
 144     case WM_GETDLGCODE:
 145         return 0;
 146
 147     case WM_CTLCOLOR:
 148         {
 149             if (HIWORD(lParam) == CTLCOLOR_SCROLLBAR)
 150             {
 151                 SetBkColor( (HDC)wParam, RGB(255, 255, 255) );
 152                 SetTextColor( (HDC)wParam, RGB(0, 0, 0) );
 153 /*              hbr = sysClrObjects.hbrScrollbar;
 154                 UnrealizeObject(hbr); */
 155                 return GetStockObject(LTGRAY_BRUSH);
 156             }
 157             else
 158             {
 159                 SetBkColor( (HDC)wParam, GetSysColor(COLOR_WINDOW) );
 160                 SetTextColor( (HDC)wParam, GetSysColor(COLOR_WINDOWTEXT) );
 161 /*              hbr = sysClrObjects.hbrWindow; */
 162                 return GetStockObject(WHITE_BRUSH);
 163             }
 164         }
 165
 166     case WM_GETTEXT:
 167         {
 168             if (wParam)
 169             {
 170                 if (wndPtr->hText)
 171                 {
 172                     textPtr = (LPSTR)USER_HEAP_ADDR(wndPtr->hText);
 173                     if ((int)wParam > (len = strlen(textPtr)))
 174                     {
 175                         strcpy((char *)lParam, textPtr);
 176                         return (DWORD)len;
 177                     }
 178                 }
 179                 lParam = (DWORD)NULL;
 180             }
 181             return (0L);
 182         }
 183
 184     case WM_GETTEXTLENGTH:
 185         {
 186             if (wndPtr->hText)
 187             {
 188                 textPtr = (LPSTR)USER_HEAP_ADDR(wndPtr->hText);
 189                 return (DWORD)strlen(textPtr);
 190             }
 191             return (0L);
 192         }
 193
 194     case WM_SETTEXT:
 195         DEFWND_SetText( hwnd, (LPSTR)lParam );
 196         NC_HandleNCPaint( hwnd, (HRGN)1 );  /* Repaint caption */
 197         return 0;
 198
 199     case WM_SETCURSOR:
 200         if (wndPtr->dwStyle & WS_CHILD)
 201             if (SendMessage(wndPtr->hwndParent, WM_SETCURSOR, wParam, lParam))
 202                 return TRUE;
 203         return NC_HandleSetCursor( hwnd, wParam, lParam );
 204
 205     case WM_SYSCOMMAND:
 206         return NC_HandleSysCommand( hwnd, wParam, MAKEPOINT(lParam) );
 207
 208     case WM_SYSKEYDOWN:
 209         if (wParam == VK_MENU) {
 210             printf("VK_MENU Pressed // hMenu=%04X !\n", GetMenu(hwnd));
 211             NC_TrackSysMenu(hwnd);
 212             }
 213         break;
 214     case WM_SYSKEYUP:
 215         if (wParam == VK_MENU) {
 216             printf("VK_MENU Released // hMenu=%04X !\n", GetMenu(hwnd));
 217             }
 218         break;
 219     }
 220     return 0;
 221 }