Make CEDrawCtx def private; erase background when OS invalidates it.

This gets rid of what's visible behind the board when it's not
full-screen width, but causes a lot of flashing.  Better will be to
make board.c own an entire rectangle and to decide board dimensions
itself.

wince/cedraw.c

@@ -24,6 +24,7 @@
 #include <stdio.h>              /* for sprintf, etc. */
 
 #include "xptypes.h"
+#include "cedraw.h"
 #include "board.h"
 #include "draw.h"
 #include "mempool.h"
@@ -52,7 +53,34 @@
 # define TREAT_AS_CURSOR(d,f) (((f) & CELL_ISCURSOR) != 0)
 #endif
 
+struct CEDrawCtx {
+    DrawCtxVTable* vtable;
     
+    HWND mainWin;
+    CEAppGlobals* globals;
+
+    COLORREF prevBkColor;
+
+    HBRUSH brushes[CE_NUM_COLORS];
+    PenColorPair pens[CE_NUM_COLORS];
+
+    HFONT selPlayerFont;
+    HFONT playerFont;
+
+    FontCacheEntry fcEntry[N_RESIZE_FONTS];
+
+    HBITMAP rightArrow;
+    HBITMAP downArrow;
+    HBITMAP origin;
+
+    XP_U16 trayOwner;
+    XP_U16 miniLineHt;
+    XP_Bool scoreIsVertical;
+    XP_Bool topFocus;
+    XP_Bool beenCleared;
+
+    MPSLOT
+};
 
 static void ceClearToBkground( CEDrawCtx* dctx, const XP_Rect* rect );
 static void ceDrawBitmapInRect( HDC hdc, const RECT* r, HBITMAP bitmap );
@@ -350,9 +378,9 @@ ceGetSizedFont( CEDrawCtx* dctx, XP_U16 height, RFIndex index,
                 XP_ASSERT( !!font );
                 DeleteObject( testFont );
                 break;
-            } else if ( trialHt == height /* first time through */
+/*             } else if ( trialHt == height /\* first time through *\/ */
-                        && testOffset > 0 ) { /* for safety */
+/*                         && testOffset > 0 ) { /\* for safety *\/ */
-                trialHt += testOffset;
+/*                 trialHt += testOffset; */
             } else {
                 ++trialHt;
             }
@@ -729,7 +757,7 @@ drawDrawTileGuts( DrawCtx* p_dctx, const XP_Rect* xprect,
         InsetRect( &rt, 1, 1 );
         Rectangle(hdc, rt.left, rt.top, rt.right, rt.bottom); /* draw frame */
         InsetRect( &rt, 1, 1 );
-        ceClipToRect( hdc, &rt );
+/*         ceClipToRect( hdc, &rt ); */
 
         if ( !isEmpty ) {
             index = getPlayerColor(dctx->trayOwner);
@@ -942,8 +970,8 @@ DRAW_FUNC_NAME(scoreBegin)( DrawCtx* p_dctx, const XP_Rect* rect,
 {
     CEDrawCtx* dctx = (CEDrawCtx*)p_dctx;
     CEAppGlobals* globals = dctx->globals;
-    HDC hdc = globals->hdc;
+    XP_ASSERT( !!globals->hdc );
-    SetBkColor( hdc, dctx->globals->appPrefs.colors[CE_BKG_COLOR] );
+    SetBkColor( globals->hdc, dctx->globals->appPrefs.colors[CE_BKG_COLOR] );
 
     dctx->scoreIsVertical = rect->height > rect->width;
 
@@ -1412,9 +1440,8 @@ ceFontsSetup( CEDrawCtx* dctx )
 } /* ceFontsSetup */
 
 void
-ce_drawctxt_update( DrawCtx* p_dctx )
+ce_draw_update( CEDrawCtx* dctx )
 {
-    CEDrawCtx* dctx = (CEDrawCtx*)p_dctx;
     XP_U16 i;
 
     for ( i = 0; i < CE_NUM_COLORS; ++i ) {
@@ -1425,7 +1452,14 @@ ce_drawctxt_update( DrawCtx* p_dctx )
     }
 } /* ce_drawctxt_update */
 
-DrawCtx* 
+void
+ce_draw_erase( CEDrawCtx* dctx, const RECT* invalR )
+{
+    CEAppGlobals* globals = dctx->globals;
+    FillRect( globals->hdc, invalR, dctx->brushes[CE_BKG_COLOR] );
+}
+
+CEDrawCtx* 
 ce_drawctxt_make( MPFORMAL HWND mainWin, CEAppGlobals* globals )
 {
     CEDrawCtx* dctx = (CEDrawCtx*)XP_MALLOC( mpool,
@@ -1473,7 +1507,7 @@ ce_drawctxt_make( MPFORMAL HWND mainWin, CEAppGlobals* globals )
     dctx->mainWin = mainWin;
     dctx->globals = globals;
 
-    ce_drawctxt_update( (DrawCtx*)dctx );
+    ce_draw_update( dctx );
 
     ceFontsSetup( dctx );
 
@@ -1484,5 +1518,5 @@ ce_drawctxt_make( MPFORMAL HWND mainWin, CEAppGlobals* globals )
     dctx->origin = LoadBitmap( globals->hInst, 
                                MAKEINTRESOURCE(IDB_ORIGIN) );
 
-    return (DrawCtx*)dctx;
+    return dctx;
 } /* ce_drawctxt_make */

wince/cedraw.h

@@ -0,0 +1,32 @@
+/* -*-mode: C; fill-column: 78; c-basic-offset: 4;-*- */ 
+/* 
+ * Copyright 2000-2008 by Eric House (xwords@eehouse.org).  All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#ifndef _CEDRAW_H_
+#define _CEDRAW_H_
+
+#include "cemain.h"
+
+typedef struct CEDrawCtx CEDrawCtx;
+
+CEDrawCtx* ce_drawctxt_make( MPFORMAL HWND mainWin, CEAppGlobals* globals );
+void ce_draw_update( CEDrawCtx* dctx );
+void ce_draw_erase( CEDrawCtx* dctx, const RECT* invalR );
+
+#endif
+

wince/cemain.c

@@ -51,6 +51,7 @@
 #include "LocalizedStrIncludes.h"
 #include "debhacks.h"
 #include "cesvdgms.h"
+#include "cedraw.h"
 
 #include "dbgutil.h"
 
@@ -994,7 +995,7 @@ ceLoadSavedGame( CEAppGlobals* globals )
             XP_DEBUGF( "calling game_makeFromStream" ); 
             game_makeFromStream( MEMPOOL stream, &globals->game, 
                                  &globals->gameInfo,
-                                 dict, &globals->util, globals->draw,
+                                 dict, &globals->util, (DrawCtx*)globals->draw,
                                  &globals->appPrefs.cp, CE_SEND_PROC, 
                                  CE_RESET_PROC globals );
         }
@@ -1227,7 +1228,7 @@ InitInstance(HINSTANCE hInstance, int nCmdShow)
     if ( !oldGameLoaded ) {
         XP_U16 gameID = 0;      /* good enough until I get networking going */
         game_makeNewGame( MPPARM(mpool) &globals->game, &globals->gameInfo,
-                          &globals->util, globals->draw, gameID,
+                          &globals->util, (DrawCtx*)globals->draw, gameID,
                           &globals->appPrefs.cp, 
                           CE_SEND_PROC, CE_RESET_PROC globals );
 
@@ -1372,7 +1373,7 @@ ceDoHistory( CEAppGlobals* globals )
 } /* ceDoHistory */
 
 static void
-drawInsidePaint( CEAppGlobals* globals )
+drawInsidePaint( CEAppGlobals* globals, const RECT* invalR )
 {
     HDC hdc;
 
@@ -1383,6 +1384,10 @@ drawInsidePaint( CEAppGlobals* globals )
         HDC prevHDC = globals->hdc;
         globals->hdc = hdc;
 
+        if ( !!invalR ) {
+            ce_draw_erase( globals->draw, invalR );
+        }
+
         board_draw( globals->game.board );
 
         globals->hdc = prevHDC;
@@ -1494,7 +1499,7 @@ ceChooseAndOpen( CEAppGlobals* globals )
 static void
 updateForColors( CEAppGlobals* globals )
 {
-    ce_drawctxt_update( globals->draw );
+    ce_draw_update( globals->draw );
     if ( !!globals->game.board ) {
         board_invalAll( globals->game.board );
     }
@@ -1678,7 +1683,7 @@ freeGlobals( CEAppGlobals* globals )
 
     MPASSIGN( mpool, globals->mpool );
 
-    draw_destroyCtxt( globals->draw );
+    draw_destroyCtxt( (DrawCtx*)globals->draw );
 
     closeGame( globals );
 
@@ -2137,7 +2142,7 @@ WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
                         board_invalRect( globals->game.board, &rect );
 
                         XP_ASSERT( globals->hWnd == hWnd );
-                        drawInsidePaint( globals );
+                        drawInsidePaint( globals, &winrect );
                     }
                     if ( !ValidateRect( hWnd, &winrect ) ) {
                         logLastError( "WM_PAINT:ValidateRect" );
@@ -2832,7 +2837,7 @@ ce_util_trayHiddenChange( XW_UtilCtxt* uc, XW_TrayVisState XP_UNUSED(newState),
     }
 #endif
 
-    drawInsidePaint( globals );
+    drawInsidePaint( globals, NULL );
 } /* ce_util_trayHiddenChange */
 
 static void
@@ -2858,7 +2863,7 @@ static void
 ce_util_notifyGameOver( XW_UtilCtxt* uc )
 {
     CEAppGlobals* globals = (CEAppGlobals*)uc->closure;
-    drawInsidePaint( globals );
+    drawInsidePaint( globals, NULL );
     ceDisplayFinalScores( globals );
 
     ceSetLeftSoftkey( globals, ID_FILE_NEWGAME );

wince/cemain.h

@@ -1,6 +1,6 @@
 /* -*-mode: C; fill-column: 78; c-basic-offset: 4;-*- */ 
 /* 
- * Copyright 2000-2007 by Eric House (xwords@eehouse.org).  All rights reserved.
+ * Copyright 2000-2008 by Eric House (xwords@eehouse.org).  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -108,7 +108,7 @@ typedef struct CEAppGlobals {
 
     XP_U16 softKeyId;           /* id of item now on left button */
 
-    DrawCtx* draw;
+    struct CEDrawCtx* draw;
     XWGame game;
     CurGameInfo gameInfo;
     XP_UCHAR* curGameName;      /* path to storage for current game */
@@ -181,37 +181,6 @@ typedef struct _FontCacheEntry {
     XP_U16 actualHt;
 } FontCacheEntry;
 
-typedef struct CEDrawCtx {
-    DrawCtxVTable* vtable;
-    
-    HWND mainWin;
-    CEAppGlobals* globals;
-
-    COLORREF prevBkColor;
-
-    HBRUSH brushes[CE_NUM_COLORS];
-    PenColorPair pens[CE_NUM_COLORS];
-
-    HFONT selPlayerFont;
-    HFONT playerFont;
-
-    FontCacheEntry fcEntry[N_RESIZE_FONTS];
-
-    HBITMAP rightArrow;
-    HBITMAP downArrow;
-    HBITMAP origin;
-
-    XP_U16 trayOwner;
-    XP_U16 miniLineHt;
-    XP_Bool scoreIsVertical;
-    XP_Bool topFocus;
-
-    MPSLOT
-} CEDrawCtx;
-
-DrawCtx* ce_drawctxt_make( MPFORMAL HWND mainWin, CEAppGlobals* globals );
-void ce_drawctxt_update( DrawCtx* dctx );
-
 int messageBoxChar( CEAppGlobals* globals, XP_UCHAR* str, wchar_t* title, 
                     XP_U16 buttons );
 XP_Bool queryBoxChar( CEAppGlobals* globals, const XP_UCHAR* msg );