windows/defwnd.c

   1 /*
   2  * Default window procedure
   3  *
   4  * Copyright 1993 Alexandre Julliard
   5
   6 static char Copyright[] = "Copyright  Alexandre Julliard, 1993";
   7 */
   8
   9 #include <stdlib.h>
  10 #include <stdio.h>
  11 #include "win.h"
  12 #include "class.h"
  13 #include "user.h"
  14 #include "nonclient.h"
  15 #include "winpos.h"
  16 #include "syscolor.h"
  17 #include "stddebug.h"
  18 /* #define DEBUG_MESSAGE */
  19 #include "debug.h"
  20
  21   /* Last COLOR id */
  22 #define COLOR_MAX   COLOR_BTNHIGHLIGHT
  23
  24 /***********************************************************************
  25  *           DEFWND_SetText
  26  *
  27  * Set the window text.
  28  */
  29 void DEFWND_SetText( HWND hwnd, LPSTR text )
  30 {
  31     LPSTR textPtr;
  32     WND *wndPtr = WIN_FindWndPtr( hwnd );
  33
  34     if (wndPtr->hText) USER_HEAP_FREE( wndPtr->hText );
  35     wndPtr->hText = USER_HEAP_ALLOC( strlen(text) + 1 );
  36     textPtr = (LPSTR) USER_HEAP_LIN_ADDR( wndPtr->hText );
  37     strcpy( textPtr, text );
  38 }
  39
  40 #include <assert.h>
  41
  42 /***********************************************************************
  43  *           DefWindowProc   (USER.107)
  44  */
  45 LONG DefWindowProc( HWND hwnd, WORD msg, WORD wParam, LONG lParam )
  46 {
  47     CLASS * classPtr;
  48     LPSTR textPtr;
  49     int len;
  50     WND * wndPtr = WIN_FindWndPtr( hwnd );
  51
  52     dprintf_message(stddeb, "DefWindowProc: %d %d %d %08lx\n",
  53                     hwnd, msg, wParam, lParam );
  54
  55     switch(msg)
  56     {
  57     case WM_NCCREATE:
  58         {
  59             CREATESTRUCT *createStruct = (CREATESTRUCT*)PTR_SEG_TO_LIN(lParam);
  60             if (createStruct->lpszName)
  61                 DEFWND_SetText( hwnd,
  62                                (LPSTR)PTR_SEG_TO_LIN(createStruct->lpszName) );
  63             return 1;
  64         }
  65
  66     case WM_NCCALCSIZE:
  67         return NC_HandleNCCalcSize( hwnd,
  68                                  (NCCALCSIZE_PARAMS *)PTR_SEG_TO_LIN(lParam) );
  69
  70     case WM_PAINTICON:
  71     case WM_NCPAINT:
  72         return NC_HandleNCPaint( hwnd );
  73
  74     case WM_NCHITTEST:
  75         return NC_HandleNCHitTest( hwnd, MAKEPOINT(lParam) );
  76
  77     case WM_NCLBUTTONDOWN:
  78         return NC_HandleNCLButtonDown( hwnd, wParam, lParam );
  79
  80     case WM_LBUTTONDBLCLK:
  81     case WM_NCLBUTTONDBLCLK:
  82         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
  83
  84     case WM_NCACTIVATE:
  85         return NC_HandleNCActivate( hwnd, wParam );
  86
  87     case WM_NCDESTROY:
  88         if (wndPtr->hText) USER_HEAP_FREE(wndPtr->hText);
  89         if (wndPtr->hVScroll) USER_HEAP_FREE(wndPtr->hVScroll);
  90         if (wndPtr->hHScroll) USER_HEAP_FREE(wndPtr->hHScroll);
  91         wndPtr->hText = wndPtr->hVScroll = wndPtr->hHScroll = 0;
  92         return 0;
  93
  94     case WM_PAINT:
  95         {
  96             PAINTSTRUCT paintstruct;
  97             BeginPaint( hwnd, &paintstruct );
  98             EndPaint( hwnd, &paintstruct );
  99             return 0;
 100         }
 101
 102     case WM_SETREDRAW:
 103         if (!wParam)
 104         {
 105             ValidateRect( hwnd, NULL );
 106             wndPtr->flags |= WIN_NO_REDRAW;
 107         }
 108         else wndPtr->flags &= ~WIN_NO_REDRAW;
 109         return 0;
 110
 111     case WM_CLOSE:
 112         DestroyWindow( hwnd );
 113         return 0;
 114
 115     case WM_MOUSEACTIVATE:
 116         if (wndPtr->dwStyle & WS_CHILD)
 117         {
 118             LONG ret = SendMessage( wndPtr->hwndParent, WM_MOUSEACTIVATE,
 119                                     wParam, lParam );
 120             if (ret) return ret;
 121         }
 122         return MA_ACTIVATE;
 123
 124     case WM_ACTIVATE:
 125         if (wParam) SetFocus( hwnd );
 126         break;
 127
 128     case WM_WINDOWPOSCHANGING:
 129         return WINPOS_HandleWindowPosChanging( (WINDOWPOS *)PTR_SEG_TO_LIN(lParam) );
 130
 131     case WM_WINDOWPOSCHANGED:
 132         {
 133             WINDOWPOS * winPos = (WINDOWPOS *)PTR_SEG_TO_LIN(lParam);
 134             if (!(winPos->flags & SWP_NOMOVE))
 135                 SendMessage( hwnd, WM_MOVE, 0,
 136                              MAKELONG( wndPtr->rectClient.left,
 137                                        wndPtr->rectClient.top ));
 138             if (!(winPos->flags & SWP_NOSIZE))
 139                 SendMessage( hwnd, WM_SIZE, SIZE_RESTORED,
 140                    MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
 141                             wndPtr->rectClient.bottom-wndPtr->rectClient.top));
 142             return 0;
 143         }
 144
 145     case WM_ERASEBKGND:
 146     case WM_ICONERASEBKGND:
 147         {
 148             if (!(classPtr = CLASS_FindClassPtr( wndPtr->hClass ))) return 0;
 149             if (!classPtr->wc.hbrBackground) return 0;
 150             if (classPtr->wc.hbrBackground <= COLOR_MAX+1)
 151             {
 152                  HBRUSH hbrush;
 153                  hbrush = CreateSolidBrush(
 154                      GetSysColor(classPtr->wc.hbrBackground-1));
 155                  FillWindow( GetParent(hwnd), hwnd, (HDC)wParam, hbrush);
 156                  DeleteObject (hbrush);
 157             }
 158             else
 159                  FillWindow( GetParent(hwnd), hwnd, (HDC)wParam,
 160                         classPtr->wc.hbrBackground );
 161             return 1;
 162         }
 163
 164     case WM_GETDLGCODE:
 165         return 0;
 166
 167     case WM_CTLCOLOR:
 168         {
 169             if (HIWORD(lParam) == CTLCOLOR_SCROLLBAR)
 170             {
 171                 SetBkColor( (HDC)wParam, RGB(255, 255, 255) );
 172                 SetTextColor( (HDC)wParam, RGB(0, 0, 0) );
 173                 UnrealizeObject( sysColorObjects.hbrushScrollbar );
 174                 return sysColorObjects.hbrushScrollbar;
 175             }
 176             else
 177             {
 178                 SetBkColor( (HDC)wParam, GetSysColor(COLOR_WINDOW) );
 179                 SetTextColor( (HDC)wParam, GetSysColor(COLOR_WINDOWTEXT) );
 180                 return sysColorObjects.hbrushWindow;
 181             }
 182         }
 183
 184     case WM_GETTEXT:
 185         {
 186             if (wParam)
 187             {
 188                 if (wndPtr->hText)
 189                 {
 190                     textPtr = (LPSTR)USER_HEAP_LIN_ADDR(wndPtr->hText);
 191                     if ((int)wParam > (len = strlen(textPtr)))
 192                     {
 193                         strcpy((char *)PTR_SEG_TO_LIN(lParam), textPtr);
 194                         return (DWORD)len;
 195                     }
 196                 }
 197             }
 198             return 0;
 199         }
 200
 201     case WM_GETTEXTLENGTH:
 202         {
 203             if (wndPtr->hText)
 204             {
 205                 textPtr = (LPSTR)USER_HEAP_LIN_ADDR(wndPtr->hText);
 206                 return (DWORD)strlen(textPtr);
 207             }
 208             return (0L);
 209         }
 210
 211     case WM_SETTEXT:
 212         DEFWND_SetText( hwnd, (LPSTR)PTR_SEG_TO_LIN(lParam) );
 213         NC_HandleNCPaint( hwnd );  /* Repaint caption */
 214         return 0;
 215
 216     case WM_SETCURSOR:
 217         if (wndPtr->dwStyle & WS_CHILD)
 218             if (SendMessage(wndPtr->hwndParent, WM_SETCURSOR, wParam, lParam))
 219                 return TRUE;
 220         return NC_HandleSetCursor( hwnd, wParam, lParam );
 221
 222     case WM_SYSCOMMAND:
 223         return NC_HandleSysCommand( hwnd, wParam, MAKEPOINT(lParam) );
 224
 225     case WM_SYSKEYDOWN:
 226         if (wParam == VK_MENU)
 227         {   /* Send to WS_OVERLAPPED parent. TODO: Handle MDI */
 228             HWND top;
 229             for(top=hwnd;GetParent(top)!=0;top=GetParent(top));
 230             SendMessage( top, WM_SYSCOMMAND, SC_KEYMENU, 0L );
 231         }
 232         break;
 233
 234     case WM_SYSKEYUP:
 235                 break;
 236     }
 237     return 0;
 238 }