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   /* Last COLOR id */
  18 #define COLOR_MAX   COLOR_BTNHIGHLIGHT
  19
  20 extern LONG NC_HandleNCPaint( HWND hwnd, HRGN hrgn );
  21 extern LONG NC_HandleNCActivate( HWND hwnd, WORD wParam );
  22 extern LONG NC_HandleNCCalcSize( HWND hwnd, NCCALCSIZE_PARAMS *params );
  23 extern LONG NC_HandleNCHitTest( HWND hwnd, POINT pt );
  24 extern LONG NC_HandleNCLButtonDown( HWND hwnd, WORD wParam, LONG lParam );
  25 extern LONG NC_HandleNCLButtonDblClk( HWND hwnd, WORD wParam, LONG lParam );
  26 extern LONG NC_HandleSysCommand( HWND hwnd, WORD wParam, POINT pt );
  27 extern LONG NC_HandleSetCursor( HWND hwnd, WORD wParam, LONG lParam );
  28 extern LONG WINPOS_HandleWindowPosChanging( WINDOWPOS *winpos ); /* winpos.c */
  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 #include <assert.h>
  48
  49 /***********************************************************************
  50  *           DefWindowProc   (USER.107)
  51  */
  52 LONG DefWindowProc( HWND hwnd, WORD msg, WORD wParam, LONG lParam )
  53 {
  54         MEASUREITEMSTRUCT *measure;
  55         CLASS * classPtr;
  56         LPSTR textPtr;
  57         int len;
  58         WND * wndPtr = WIN_FindWndPtr( hwnd );
  59
  60 #ifdef DEBUG_MESSAGE
  61     printf( "DefWindowProc: %d %d %d %08x\n", hwnd, msg, wParam, lParam );
  62 #endif
  63
  64     switch(msg)
  65     {
  66     case WM_NCCREATE:
  67         {
  68             CREATESTRUCT * createStruct = (CREATESTRUCT *)lParam;
  69             if (createStruct->lpszName)
  70                 DEFWND_SetText( hwnd, createStruct->lpszName );
  71             if ((createStruct->style & WS_VSCROLL) ||
  72                 (createStruct->style & WS_HSCROLL)) NC_CreateScrollBars(hwnd);
  73             return 1;
  74         }
  75
  76     case WM_NCCALCSIZE:
  77         return NC_HandleNCCalcSize( hwnd, (NCCALCSIZE_PARAMS *)lParam );
  78
  79     case WM_PAINTICON:
  80     case WM_NCPAINT:
  81         return NC_HandleNCPaint( hwnd, (HRGN)wParam );
  82
  83
  84     case WM_NCHITTEST:
  85         return NC_HandleNCHitTest( hwnd, MAKEPOINT(lParam) );
  86
  87     case WM_NCLBUTTONDOWN:
  88         return NC_HandleNCLButtonDown( hwnd, wParam, lParam );
  89
  90     case WM_LBUTTONDBLCLK:
  91     case WM_NCLBUTTONDBLCLK:
  92         return NC_HandleNCLButtonDblClk( hwnd, wParam, lParam );
  93
  94     case WM_NCACTIVATE:
  95         return NC_HandleNCActivate( hwnd, wParam );
  96
  97     case WM_NCDESTROY:
  98         if (wndPtr->hText) USER_HEAP_FREE(wndPtr->hText);
  99         wndPtr->hText = 0;
 100         if (wndPtr->VScroll) free(wndPtr->VScroll);
 101         if (wndPtr->HScroll) free(wndPtr->HScroll);
 102         return 0;
 103
 104     case WM_PAINT:
 105         {
 106             PAINTSTRUCT paintstruct;
 107             BeginPaint( hwnd, &paintstruct );
 108             EndPaint( hwnd, &paintstruct );
 109             return 0;
 110         }
 111
 112     case WM_CLOSE:
 113         DestroyWindow( hwnd );
 114         return 0;
 115
 116     case WM_MOUSEACTIVATE:
 117         if (wndPtr->dwStyle & WS_CHILD)
 118         {
 119             LONG ret = SendMessage( wndPtr->hwndParent, WM_MOUSEACTIVATE,
 120                                     wParam, lParam );
 121             if (ret) return ret;
 122         }
 123         return MA_ACTIVATE;
 124
 125     case WM_ACTIVATE:
 126         if (wParam) SetFocus( hwnd );
 127         break;
 128
 129     case WM_WINDOWPOSCHANGING:
 130         return WINPOS_HandleWindowPosChanging( (WINDOWPOS *)lParam );
 131
 132     case WM_WINDOWPOSCHANGED:
 133         {
 134             WINDOWPOS * winPos = (WINDOWPOS *)lParam;
 135             if (!(winPos->flags & SWP_NOMOVE))
 136                 SendMessage( hwnd, WM_MOVE, 0,
 137                              MAKELONG( wndPtr->rectClient.left,
 138                                        wndPtr->rectClient.top ));
 139             if (!(winPos->flags & SWP_NOSIZE))
 140                 SendMessage( hwnd, WM_SIZE, SIZE_RESTORED,
 141                    MAKELONG(wndPtr->rectClient.right-wndPtr->rectClient.left,
 142                             wndPtr->rectClient.bottom-wndPtr->rectClient.top));
 143             return 0;
 144         }
 145
 146     case WM_ERASEBKGND:
 147     case WM_ICONERASEBKGND:
 148         {
 149             if (!(classPtr = CLASS_FindClassPtr( wndPtr->hClass ))) return 1;
 150             if (!classPtr->wc.hbrBackground) return 1;
 151             if (classPtr->wc.hbrBackground <= COLOR_MAX+1)
 152             {
 153                  HBRUSH hbrush;
 154                  hbrush = CreateSolidBrush(
 155                      GetSysColor(classPtr->wc.hbrBackground-1));
 156                  FillWindow( GetParent(hwnd), hwnd, (HDC)wParam, hbrush);
 157                  DeleteObject (hbrush);
 158             }
 159             else
 160                  FillWindow( GetParent(hwnd), hwnd, (HDC)wParam,
 161                         classPtr->wc.hbrBackground );
 162             return 0;
 163         }
 164
 165     case WM_GETDLGCODE:
 166         return 0;
 167
 168     case WM_CTLCOLOR:
 169         {
 170             if (HIWORD(lParam) == CTLCOLOR_SCROLLBAR)
 171             {
 172                 SetBkColor( (HDC)wParam, RGB(255, 255, 255) );
 173                 SetTextColor( (HDC)wParam, RGB(0, 0, 0) );
 174                 UnrealizeObject( sysColorObjects.hbrushScrollbar );
 175                 return sysColorObjects.hbrushScrollbar;
 176             }
 177             else
 178             {
 179                 SetBkColor( (HDC)wParam, GetSysColor(COLOR_WINDOW) );
 180                 SetTextColor( (HDC)wParam, GetSysColor(COLOR_WINDOWTEXT) );
 181                 return sysColorObjects.hbrushWindow;
 182             }
 183         }
 184
 185     case WM_GETTEXT:
 186         {
 187             if (wParam)
 188             {
 189                 if (wndPtr->hText)
 190                 {
 191                     textPtr = (LPSTR)USER_HEAP_ADDR(wndPtr->hText);
 192                     if ((int)wParam > (len = strlen(textPtr)))
 193                     {
 194                         strcpy((char *)lParam, textPtr);
 195                         return (DWORD)len;
 196                     }
 197                 }
 198                 lParam = (DWORD)NULL;
 199             }
 200             return (0L);
 201         }
 202
 203     case WM_GETTEXTLENGTH:
 204         {
 205             if (wndPtr->hText)
 206             {
 207                 textPtr = (LPSTR)USER_HEAP_ADDR(wndPtr->hText);
 208                 return (DWORD)strlen(textPtr);
 209             }
 210             return (0L);
 211         }
 212
 213     case WM_SETTEXT:
 214         DEFWND_SetText( hwnd, (LPSTR)lParam );
 215         NC_HandleNCPaint( hwnd, (HRGN)1 );  /* Repaint caption */
 216         return 0;
 217
 218     case WM_SETCURSOR:
 219         if (wndPtr->dwStyle & WS_CHILD)
 220             if (SendMessage(wndPtr->hwndParent, WM_SETCURSOR, wParam, lParam))
 221                 return TRUE;
 222         return NC_HandleSetCursor( hwnd, wParam, lParam );
 223
 224     case WM_SYSCOMMAND:
 225         return NC_HandleSysCommand( hwnd, wParam, MAKEPOINT(lParam) );
 226
 227     case WM_SYSKEYDOWN:
 228         if (wParam == VK_MENU)
 229             SendMessage( hwnd, WM_SYSCOMMAND, SC_KEYMENU, 0L );
 230         break;
 231
 232     case WM_SYSKEYUP:
 233                 break;
 234     case WM_MEASUREITEM:
 235                 measure = (MEASUREITEMSTRUCT *)lParam;
 236                 switch(measure->CtlType) {
 237                         case ODT_BUTTON:
 238                                 break;
 239                         case ODT_COMBOBOX:
 240                                 measure->itemHeight = 10;
 241 /*                              printf("defwndproc WM_MEASUREITEM // ODT_COMBOBOX !\n");*/
 242                                 break;
 243                         case ODT_LISTBOX:
 244                                 measure->itemHeight = 10;
 245 /*                              printf("defwndproc WM_MEASUREITEM // ODT_LISTBOX !\n");*/
 246                                 break;
 247                         case ODT_MENU:
 248                                 break;
 249                         default:
 250                                 break;
 251                         }
 252         break;
 253     }
 254     return 0;
 255 }