X-Git-Url: http://winboard.nl/cgi-bin?a=blobdiff_plain;f=winboard%2Fwevalgraph.c;h=3f1f07644849c018370fed2316b85a2567b857ef;hb=HEAD;hp=ee71b609e81a53d0c335db4e4536c80dbdda79c0;hpb=c37d45adc7d98a702a7459ccdc0ac23df01a476e;p=xboard.git

diff --git a/winboard/wevalgraph.c b/winboard/wevalgraph.c
index ee71b60..3f1f076 100644
--- a/winboard/wevalgraph.c
+++ b/winboard/wevalgraph.c
@@ -5,7 +5,8 @@
  *
  * Copyright 2005 Alessandro Scotti
  *
- * Enhancements Copyright 2009, 2010, 2011, 2012, 2013, 2014 Free Software Foundation, Inc.
+ * Enhancements Copyright 2009, 2010, 2011, 2012, 2013, 2014, 2015,
+ * 2016 Free Software Foundation, Inc.
  *
  * ------------------------------------------------------------------------
  *
@@ -51,7 +52,7 @@ static COLORREF crBlack = RGB( 0xAD, 0x5D, 0x3D );
 
 static HDC hdcPB = NULL;
 static HBITMAP hbmPB = NULL;
-static HPEN pens[6]; // [HGM] put all pens in one array
+static HPEN pens[PEN_ANY+1]; // [HGM] put all pens in one array
 static HBRUSH hbrHist[3] = { NULL, NULL, NULL };
 
 Boolean EvalGraphIsUp()
@@ -156,7 +157,7 @@ static VOID DisplayEvalGraph( HWND hWnd, HDC hDC )
 
     // back-end painting; calls back front-end primitives for lines, rectangles and text
     PaintEvalGraph();
-    SetWindowText(hWnd, MakeEvalTitle(T_("Evaluation Graph")));
+    SetWindowText(hWnd, MakeEvalTitle(differentialView ? T_("Blunder Graph") : T_("Evaluation Graph")));
 
     /* Copy bitmap into destination DC */
     BitBlt( hDC, 0, 0, nWidthPB, nHeightPB, hdcPB, 0, 0, SRCCOPY );
@@ -208,7 +209,14 @@ LRESULT CALLBACK EvalGraphProc( HWND hDlg, UINT message, WPARAM wParam, LPARAM l
         EndPaint( hDlg, &stPS );
         break;
 
+    case WM_MOUSEWHEEL:
+        if((short)HIWORD(wParam) < 0) appData.zoom++;
+        if((short)HIWORD(wParam) > 0 && appData.zoom > 1)  appData.zoom--;
+        goto paint;
+    case WM_RBUTTONDOWN:
+        differentialView = !differentialView;
     case WM_REFRESH_GRAPH:
+    paint:
         hDC = GetDC( hDlg );
         DisplayEvalGraph( hDlg, hDC );
         ReleaseDC( hDlg, hDC );