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             if ((createStruct->style & WS_VSCROLL) ||
  68                 (createStruct->style & WS_HSCROLL)) NC_CreateScrollBars(hwnd);
  69             return 1;
  70         }
  71
  72     case WM_NCCALCSIZE:
  73         return NC_HandleNCCalcSize( hwnd, (NCCALCSIZE_PARAMS *)lParam );
  74
  75     case WM_NCPAINT:
  76         return NC_HandleNCPaint( hwnd, (HRGN)wParam );
  77
  78     case WM_NCHITTEST:
  79         return NC_HandleNCHitTest( hwnd, MAKEPOINT(lParam) );
  80
  81     case WM_NCLBUTTONDOWN:
  82         return NC_HandleNCLButtonDown( hwnd, wParam, lParam );
  83
  84     case WM_NCLBUTTONDBLCLK:
  85         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
  86
  87     case WM_NCACTIVATE:
  88         return NC_HandleNCActivate( hwnd, wParam );
  89
  90     case WM_NCDESTROY:
  91         if (wndPtr->hText) USER_HEAP_FREE(wndPtr->hText);
  92         wndPtr->hText = 0;
  93         if (wndPtr->VScroll) free(wndPtr->VScroll);
  94         if (wndPtr->HScroll) free(wndPtr->HScroll);
  95         return 0;
  96
  97     case WM_PAINT:
  98         {
  99             PAINTSTRUCT paintstruct;
 100             BeginPaint( hwnd, &paintstruct );
 101             EndPaint( hwnd, &paintstruct );
 102             return 0;
 103         }
 104
 105     case WM_CLOSE:
 106         DestroyWindow( hwnd );
 107         return 0;
 108
 109     case WM_MOUSEACTIVATE:
 110         if (wndPtr->dwStyle & WS_CHILD)
 111         {
 112             LONG ret = SendMessage( wndPtr->hwndParent, WM_MOUSEACTIVATE,
 113                                     wParam, lParam );
 114             if (ret) return ret;
 115         }
 116         return MA_ACTIVATE;
 117
 118     case WM_ACTIVATE:
 119         if (wParam) SetFocus( hwnd );
 120         break;
 121
 122     case WM_WINDOWPOSCHANGED:
 123         {
 124             WINDOWPOS * winPos = (WINDOWPOS *)lParam;
 125             if (!(winPos->flags & SWP_NOMOVE))
 126                 SendMessage( hwnd, WM_MOVE, 0,
 127                              MAKELONG( wndPtr->rectClient.left,
 128                                        wndPtr->rectClient.top ));
 129             if (!(winPos->flags & SWP_NOSIZE))
 130                 SendMessage( hwnd, WM_SIZE, SIZE_RESTORED,
 131                    MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
 132                             wndPtr->rectClient.bottom-wndPtr->rectClient.top));
 133             return 0;
 134         }
 135
 136     case WM_ERASEBKGND:
 137     case WM_ICONERASEBKGND:
 138         {
 139             if (!(classPtr = CLASS_FindClassPtr( wndPtr->hClass ))) return 1;
 140             if (!classPtr->wc.hbrBackground) return 1;
 141             FillWindow( GetParent(hwnd), hwnd, (HDC)wParam,
 142                         classPtr->wc.hbrBackground );
 143             return 0;
 144         }
 145
 146     case WM_GETDLGCODE:
 147         return 0;
 148
 149     case WM_CTLCOLOR:
 150         {
 151             if (HIWORD(lParam) == CTLCOLOR_SCROLLBAR)
 152             {
 153                 SetBkColor( (HDC)wParam, RGB(255, 255, 255) );
 154                 SetTextColor( (HDC)wParam, RGB(0, 0, 0) );
 155 /*              hbr = sysClrObjects.hbrScrollbar;
 156                 UnrealizeObject(hbr); */
 157                 return GetStockObject(LTGRAY_BRUSH);
 158             }
 159             else
 160             {
 161                 SetBkColor( (HDC)wParam, GetSysColor(COLOR_WINDOW) );
 162                 SetTextColor( (HDC)wParam, GetSysColor(COLOR_WINDOWTEXT) );
 163 /*              hbr = sysClrObjects.hbrWindow; */
 164                 return GetStockObject(WHITE_BRUSH);
 165             }
 166         }
 167
 168     case WM_GETTEXT:
 169         {
 170             if (wParam)
 171             {
 172                 if (wndPtr->hText)
 173                 {
 174                     textPtr = (LPSTR)USER_HEAP_ADDR(wndPtr->hText);
 175                     if ((int)wParam > (len = strlen(textPtr)))
 176                     {
 177                         strcpy((char *)lParam, textPtr);
 178                         return (DWORD)len;
 179                     }
 180                 }
 181                 lParam = (DWORD)NULL;
 182             }
 183             return (0L);
 184         }
 185
 186     case WM_GETTEXTLENGTH:
 187         {
 188             if (wndPtr->hText)
 189             {
 190                 textPtr = (LPSTR)USER_HEAP_ADDR(wndPtr->hText);
 191                 return (DWORD)strlen(textPtr);
 192             }
 193             return (0L);
 194         }
 195
 196     case WM_SETTEXT:
 197         DEFWND_SetText( hwnd, (LPSTR)lParam );
 198         NC_HandleNCPaint( hwnd, (HRGN)1 );  /* Repaint caption */
 199         return 0;
 200
 201     case WM_SETCURSOR:
 202         if (wndPtr->dwStyle & WS_CHILD)
 203             if (SendMessage(wndPtr->hwndParent, WM_SETCURSOR, wParam, lParam))
 204                 return TRUE;
 205         return NC_HandleSetCursor( hwnd, wParam, lParam );
 206
 207     case WM_SYSCOMMAND:
 208         return NC_HandleSysCommand( hwnd, wParam, MAKEPOINT(lParam) );
 209
 210     case WM_SYSKEYDOWN:
 211         if (wParam == VK_MENU) {
 212             printf("VK_MENU Pressed // hMenu=%04X !\n", GetMenu(hwnd));
 213             NC_TrackSysMenu(hwnd);
 214             }
 215         break;
 216     case WM_SYSKEYUP:
 217         if (wParam == VK_MENU) {
 218             printf("VK_MENU Released // hMenu=%04X !\n", GetMenu(hwnd));
 219             }
 220         break;
 221     }
 222     return 0;
 223 }