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 #include <stdlib.h>
  10 #include <stdio.h>
  11 #include "windows.h"
  12 #include "win.h"
  13 #include "class.h"
  14 #include "user.h"
  15
  16 extern LONG NC_HandleNCPaint( HWND hwnd, HRGN hrgn );
  17 extern LONG NC_HandleNCActivate( HWND hwnd, WORD wParam );
  18 extern LONG NC_HandleNCCalcSize( HWND hwnd, NCCALCSIZE_PARAMS *params );
  19 extern LONG NC_HandleNCHitTest( HWND hwnd, POINT pt );
  20 extern LONG NC_HandleNCLButtonDown( HWND hwnd, WORD wParam, LONG lParam );
  21 extern LONG NC_HandleNCLButtonDblClk( HWND hwnd, WORD wParam, LONG lParam );
  22 extern LONG NC_HandleSysCommand( HWND hwnd, WORD wParam, POINT pt );
  23 extern LONG NC_HandleSetCursor( HWND hwnd, WORD wParam, LONG lParam );
  24 extern void NC_TrackSysMenu( HWND hwnd ); /* menu.c */
  25 extern BOOL ActivateMenuFocus(HWND hWnd); /* menu.c */
  26
  27
  28
  29 /***********************************************************************
  30  *           DEFWND_SetText
  31  *
  32  * Set the window text.
  33  */
  34 void DEFWND_SetText( HWND hwnd, LPSTR text )
  35 {
  36     LPSTR textPtr;
  37     WND *wndPtr = WIN_FindWndPtr( hwnd );
  38
  39     if (wndPtr->hText) USER_HEAP_FREE( wndPtr->hText );
  40     wndPtr->hText = USER_HEAP_ALLOC( LMEM_MOVEABLE, strlen(text) + 2 );
  41     textPtr = (LPSTR) USER_HEAP_ADDR( wndPtr->hText );
  42     strcpy( textPtr, text );
  43         /* for use by edit control */
  44     *(textPtr + strlen(text) + 1) = '\0';
  45 }
  46
  47
  48 /***********************************************************************
  49  *           DefWindowProc   (USER.107)
  50  */
  51 LONG DefWindowProc( HWND hwnd, WORD msg, WORD wParam, LONG lParam )
  52 {
  53         MEASUREITEMSTRUCT *measure;
  54         CLASS * classPtr;
  55         LPSTR textPtr;
  56         int len;
  57         WND * wndPtr = WIN_FindWndPtr( hwnd );
  58
  59 #ifdef DEBUG_MESSAGE
  60     printf( "DefWindowProc: %d %d %d %08x\n", hwnd, msg, wParam, lParam );
  61 #endif
  62
  63     switch(msg)
  64     {
  65     case WM_NCCREATE:
  66         {
  67             CREATESTRUCT * createStruct = (CREATESTRUCT *)lParam;
  68             if (createStruct->lpszName)
  69                 DEFWND_SetText( hwnd, createStruct->lpszName );
  70             if ((createStruct->style & WS_VSCROLL) ||
  71                 (createStruct->style & WS_HSCROLL)) NC_CreateScrollBars(hwnd);
  72             return 1;
  73         }
  74
  75     case WM_NCCALCSIZE:
  76         return NC_HandleNCCalcSize( hwnd, (NCCALCSIZE_PARAMS *)lParam );
  77
  78     case WM_NCPAINT:
  79         return NC_HandleNCPaint( hwnd, (HRGN)wParam );
  80
  81     case WM_NCHITTEST:
  82         return NC_HandleNCHitTest( hwnd, MAKEPOINT(lParam) );
  83
  84     case WM_NCLBUTTONDOWN:
  85         return NC_HandleNCLButtonDown( hwnd, wParam, lParam );
  86
  87     case WM_NCLBUTTONDBLCLK:
  88         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
  89
  90     case WM_NCACTIVATE:
  91         return NC_HandleNCActivate( hwnd, wParam );
  92
  93     case WM_NCDESTROY:
  94         if (wndPtr->hText) USER_HEAP_FREE(wndPtr->hText);
  95         wndPtr->hText = 0;
  96         if (wndPtr->VScroll) free(wndPtr->VScroll);
  97         if (wndPtr->HScroll) free(wndPtr->HScroll);
  98         return 0;
  99
 100     case WM_PAINT:
 101         {
 102             PAINTSTRUCT paintstruct;
 103             BeginPaint( hwnd, &paintstruct );
 104             EndPaint( hwnd, &paintstruct );
 105             return 0;
 106         }
 107
 108     case WM_CLOSE:
 109         DestroyWindow( hwnd );
 110         return 0;
 111
 112     case WM_MOUSEACTIVATE:
 113         if (wndPtr->dwStyle & WS_CHILD)
 114         {
 115             LONG ret = SendMessage( wndPtr->hwndParent, WM_MOUSEACTIVATE,
 116                                     wParam, lParam );
 117             if (ret) return ret;
 118         }
 119         return MA_ACTIVATE;
 120
 121     case WM_ACTIVATE:
 122         if (wParam) SetFocus( hwnd );
 123         break;
 124
 125     case WM_WINDOWPOSCHANGED:
 126         {
 127             WINDOWPOS * winPos = (WINDOWPOS *)lParam;
 128             if (!(winPos->flags & SWP_NOMOVE))
 129                 SendMessage( hwnd, WM_MOVE, 0,
 130                              MAKELONG( wndPtr->rectClient.left,
 131                                        wndPtr->rectClient.top ));
 132             if (!(winPos->flags & SWP_NOSIZE))
 133                 SendMessage( hwnd, WM_SIZE, SIZE_RESTORED,
 134                    MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
 135                             wndPtr->rectClient.bottom-wndPtr->rectClient.top));
 136             return 0;
 137         }
 138
 139     case WM_ERASEBKGND:
 140     case WM_ICONERASEBKGND:
 141         {
 142             if (!(classPtr = CLASS_FindClassPtr( wndPtr->hClass ))) return 1;
 143             if (!classPtr->wc.hbrBackground) return 1;
 144             FillWindow( GetParent(hwnd), hwnd, (HDC)wParam,
 145                         classPtr->wc.hbrBackground );
 146             return 0;
 147         }
 148
 149     case WM_GETDLGCODE:
 150         return 0;
 151
 152     case WM_CTLCOLOR:
 153         {
 154             if (HIWORD(lParam) == CTLCOLOR_SCROLLBAR)
 155             {
 156                 SetBkColor( (HDC)wParam, RGB(255, 255, 255) );
 157                 SetTextColor( (HDC)wParam, RGB(0, 0, 0) );
 158 /*              hbr = sysClrObjects.hbrScrollbar;
 159                 UnrealizeObject(hbr); */
 160                 return GetStockObject(LTGRAY_BRUSH);
 161             }
 162             else
 163             {
 164                 SetBkColor( (HDC)wParam, GetSysColor(COLOR_WINDOW) );
 165                 SetTextColor( (HDC)wParam, GetSysColor(COLOR_WINDOWTEXT) );
 166 /*              hbr = sysClrObjects.hbrWindow; */
 167                 return GetStockObject(WHITE_BRUSH);
 168             }
 169         }
 170
 171     case WM_GETTEXT:
 172         {
 173             if (wParam)
 174             {
 175                 if (wndPtr->hText)
 176                 {
 177                     textPtr = (LPSTR)USER_HEAP_ADDR(wndPtr->hText);
 178                     if ((int)wParam > (len = strlen(textPtr)))
 179                     {
 180                         strcpy((char *)lParam, textPtr);
 181                         return (DWORD)len;
 182                     }
 183                 }
 184                 lParam = (DWORD)NULL;
 185             }
 186             return (0L);
 187         }
 188
 189     case WM_GETTEXTLENGTH:
 190         {
 191             if (wndPtr->hText)
 192             {
 193                 textPtr = (LPSTR)USER_HEAP_ADDR(wndPtr->hText);
 194                 return (DWORD)strlen(textPtr);
 195             }
 196             return (0L);
 197         }
 198
 199     case WM_SETTEXT:
 200         DEFWND_SetText( hwnd, (LPSTR)lParam );
 201         NC_HandleNCPaint( hwnd, (HRGN)1 );  /* Repaint caption */
 202         return 0;
 203
 204     case WM_SETCURSOR:
 205         if (wndPtr->dwStyle & WS_CHILD)
 206             if (SendMessage(wndPtr->hwndParent, WM_SETCURSOR, wParam, lParam))
 207                 return TRUE;
 208         return NC_HandleSetCursor( hwnd, wParam, lParam );
 209
 210     case WM_SYSCOMMAND:
 211         return NC_HandleSysCommand( hwnd, wParam, MAKEPOINT(lParam) );
 212
 213     case WM_SYSKEYDOWN:
 214                 if (wParam == VK_MENU) ActivateMenuFocus(hwnd);
 215                 break;
 216     case WM_SYSKEYUP:
 217                 break;
 218     case WM_MENUCHAR:
 219                 MessageBeep(0);
 220                 break;
 221     case WM_MEASUREITEM:
 222                 measure = (MEASUREITEMSTRUCT *)lParam;
 223                 switch(measure->CtlType) {
 224                         case ODT_BUTTON:
 225                                 break;
 226                         case ODT_COMBOBOX:
 227                                 measure->itemHeight = 10;
 228 /*                              printf("defwndproc WM_MEASUREITEM // ODT_COMBOBOX !\n");*/
 229                                 break;
 230                         case ODT_LISTBOX:
 231                                 measure->itemHeight = 10;
 232 /*                              printf("defwndproc WM_MEASUREITEM // ODT_LISTBOX !\n");*/
 233                                 break;
 234                         case ODT_MENU:
 235                                 break;
 236                         default:
 237                                 break;
 238                         }
 239         break;
 240     }
 241     return 0;
 242 }