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 #include "syscolor.h"
  16
  17 extern LONG NC_HandleNCPaint( HWND hwnd, HRGN hrgn );
  18 extern LONG NC_HandleNCActivate( HWND hwnd, WORD wParam );
  19 extern LONG NC_HandleNCCalcSize( HWND hwnd, NCCALCSIZE_PARAMS *params );
  20 extern LONG NC_HandleNCHitTest( HWND hwnd, POINT pt );
  21 extern LONG NC_HandleNCLButtonDown( HWND hwnd, WORD wParam, LONG lParam );
  22 extern LONG NC_HandleNCLButtonDblClk( HWND hwnd, WORD wParam, LONG lParam );
  23 extern LONG NC_HandleSysCommand( HWND hwnd, WORD wParam, POINT pt );
  24 extern LONG NC_HandleSetCursor( HWND hwnd, WORD wParam, LONG lParam );
  25 extern LONG WINPOS_HandleWindowPosChanging( WINDOWPOS *winpos ); /* winpos.c */
  26 extern void NC_TrackSysMenu( HWND hwnd ); /* menu.c */
  27 extern BOOL ActivateMenuBarFocus(HWND hWnd); /* menu.c */
  28
  29
  30
  31 /***********************************************************************
  32  *           DEFWND_SetText
  33  *
  34  * Set the window text.
  35  */
  36 void DEFWND_SetText( HWND hwnd, LPSTR text )
  37 {
  38     LPSTR textPtr;
  39     WND *wndPtr = WIN_FindWndPtr( hwnd );
  40
  41     if (wndPtr->hText) USER_HEAP_FREE( wndPtr->hText );
  42     wndPtr->hText = USER_HEAP_ALLOC( LMEM_MOVEABLE, strlen(text) + 1 );
  43     textPtr = (LPSTR) USER_HEAP_ADDR( wndPtr->hText );
  44     strcpy( textPtr, text );
  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_PAINTICON:
  82         printf("going to call NC_HandleNCPaintIcon\n");
  83         return NC_HandleNCPaintIcon( hwnd );
  84
  85
  86     case WM_NCHITTEST:
  87         return NC_HandleNCHitTest( hwnd, MAKEPOINT(lParam) );
  88
  89     case WM_NCLBUTTONDOWN:
  90         return NC_HandleNCLButtonDown( hwnd, wParam, lParam );
  91
  92     case WM_NCLBUTTONDBLCLK:
  93         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
  94
  95     case WM_NCACTIVATE:
  96         return NC_HandleNCActivate( hwnd, wParam );
  97
  98     case WM_NCDESTROY:
  99         if (wndPtr->hText) USER_HEAP_FREE(wndPtr->hText);
 100         wndPtr->hText = 0;
 101         if (wndPtr->VScroll) free(wndPtr->VScroll);
 102         if (wndPtr->HScroll) free(wndPtr->HScroll);
 103         return 0;
 104
 105     case WM_PAINT:
 106         {
 107             PAINTSTRUCT paintstruct;
 108             BeginPaint( hwnd, &paintstruct );
 109             EndPaint( hwnd, &paintstruct );
 110             return 0;
 111         }
 112
 113     case WM_CLOSE:
 114         DestroyWindow( hwnd );
 115         return 0;
 116
 117     case WM_MOUSEACTIVATE:
 118         if (wndPtr->dwStyle & WS_CHILD)
 119         {
 120             LONG ret = SendMessage( wndPtr->hwndParent, WM_MOUSEACTIVATE,
 121                                     wParam, lParam );
 122             if (ret) return ret;
 123         }
 124         return MA_ACTIVATE;
 125
 126     case WM_ACTIVATE:
 127         if (wParam) SetFocus( hwnd );
 128         break;
 129
 130     case WM_WINDOWPOSCHANGING:
 131         return WINPOS_HandleWindowPosChanging( (WINDOWPOS *)lParam );
 132
 133     case WM_WINDOWPOSCHANGED:
 134         {
 135             WINDOWPOS * winPos = (WINDOWPOS *)lParam;
 136             if (!(winPos->flags & SWP_NOMOVE))
 137                 SendMessage( hwnd, WM_MOVE, 0,
 138                              MAKELONG( wndPtr->rectClient.left,
 139                                        wndPtr->rectClient.top ));
 140             if (!(winPos->flags & SWP_NOSIZE))
 141                 SendMessage( hwnd, WM_SIZE, SIZE_RESTORED,
 142                    MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
 143                             wndPtr->rectClient.bottom-wndPtr->rectClient.top));
 144             return 0;
 145         }
 146
 147     case WM_ERASEBKGND:
 148     case WM_ICONERASEBKGND:
 149         {
 150             if (!(classPtr = CLASS_FindClassPtr( wndPtr->hClass ))) return 1;
 151             if (!classPtr->wc.hbrBackground) return 1;
 152             FillWindow( GetParent(hwnd), hwnd, (HDC)wParam,
 153                         classPtr->wc.hbrBackground );
 154             return 0;
 155         }
 156
 157     case WM_GETDLGCODE:
 158         return 0;
 159
 160     case WM_CTLCOLOR:
 161         {
 162             if (HIWORD(lParam) == CTLCOLOR_SCROLLBAR)
 163             {
 164                 SetBkColor( (HDC)wParam, RGB(255, 255, 255) );
 165                 SetTextColor( (HDC)wParam, RGB(0, 0, 0) );
 166                 UnrealizeObject( sysColorObjects.hbrushScrollbar );
 167                 return sysColorObjects.hbrushScrollbar;
 168             }
 169             else
 170             {
 171                 SetBkColor( (HDC)wParam, GetSysColor(COLOR_WINDOW) );
 172                 SetTextColor( (HDC)wParam, GetSysColor(COLOR_WINDOWTEXT) );
 173                 return sysColorObjects.hbrushWindow;
 174             }
 175         }
 176
 177     case WM_GETTEXT:
 178         {
 179             if (wParam)
 180             {
 181                 if (wndPtr->hText)
 182                 {
 183                     textPtr = (LPSTR)USER_HEAP_ADDR(wndPtr->hText);
 184                     if ((int)wParam > (len = strlen(textPtr)))
 185                     {
 186                         strcpy((char *)lParam, textPtr);
 187                         return (DWORD)len;
 188                     }
 189                 }
 190                 lParam = (DWORD)NULL;
 191             }
 192             return (0L);
 193         }
 194
 195     case WM_GETTEXTLENGTH:
 196         {
 197             if (wndPtr->hText)
 198             {
 199                 textPtr = (LPSTR)USER_HEAP_ADDR(wndPtr->hText);
 200                 return (DWORD)strlen(textPtr);
 201             }
 202             return (0L);
 203         }
 204
 205     case WM_SETTEXT:
 206         DEFWND_SetText( hwnd, (LPSTR)lParam );
 207         NC_HandleNCPaint( hwnd, (HRGN)1 );  /* Repaint caption */
 208         return 0;
 209
 210     case WM_SETCURSOR:
 211         if (wndPtr->dwStyle & WS_CHILD)
 212             if (SendMessage(wndPtr->hwndParent, WM_SETCURSOR, wParam, lParam))
 213                 return TRUE;
 214         return NC_HandleSetCursor( hwnd, wParam, lParam );
 215
 216     case WM_SYSCOMMAND:
 217         return NC_HandleSysCommand( hwnd, wParam, MAKEPOINT(lParam) );
 218
 219     case WM_SYSKEYDOWN:
 220                 if (wParam == VK_MENU) ActivateMenuBarFocus(hwnd);
 221                 break;
 222     case WM_SYSKEYUP:
 223                 break;
 224     case WM_MENUCHAR:
 225                 MessageBeep(0);
 226                 break;
 227     case WM_MEASUREITEM:
 228                 measure = (MEASUREITEMSTRUCT *)lParam;
 229                 switch(measure->CtlType) {
 230                         case ODT_BUTTON:
 231                                 break;
 232                         case ODT_COMBOBOX:
 233                                 measure->itemHeight = 10;
 234 /*                              printf("defwndproc WM_MEASUREITEM // ODT_COMBOBOX !\n");*/
 235                                 break;
 236                         case ODT_LISTBOX:
 237                                 measure->itemHeight = 10;
 238 /*                              printf("defwndproc WM_MEASUREITEM // ODT_LISTBOX !\n");*/
 239                                 break;
 240                         case ODT_MENU:
 241                                 break;
 242                         default:
 243                                 break;
 244                         }
 245         break;
 246     }
 247     return 0;
 248 }