windows/defwnd.c

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