no message

svn path=/trunk/boinc/; revision=1258

client/app.C

@@ -1224,3 +1224,7 @@ void ACTIVE_TASK_SET::check_graphics_mode_ack() {
         atp->check_graphics_mode_ack();
     }
 }
+
+bool ACTIVE_TASK::supports_graphics() {
+    return (graphics_acked_mode != MODE_UNSUPPORTED);
+}

client/app.h

@@ -116,6 +116,7 @@ public:
     int get_cpu_time_via_os();
     double est_time_to_completion();
     bool read_stderr_file();
+    bool supports_graphics();
 
     int write(FILE*);
     int parse(FILE*, CLIENT_STATE*);

client/win/wingui_mainwindow.cpp

@@ -1554,6 +1554,15 @@ void CMainWindow::OnRButtonDown(UINT nFlags, CPoint point)
 			if(rt.PtInRect(point)) {
 				pContextMenu = m_ContextMenu.GetSubMenu(nMenuId);
 				if(pContextMenu) {
+					if (nMenuId == RESULT_MENU) {
+						pContextMenu->EnableMenuItem(ID_WORK_SHOWGRAPHICS,MF_GRAYED); //disable
+						RESULT *rp = (RESULT *)pMenuCtrl->GetItemData(i);
+						if (rp) {
+							ACTIVE_TASK *atp = gstate.lookup_active_task_by_result(rp);
+							if (atp && atp->supports_graphics())
+								pContextMenu->EnableMenuItem(ID_WORK_SHOWGRAPHICS,MF_ENABLED); // enable
+						}
+					}
 					pContextMenu->TrackPopupMenu(TPM_LEFTALIGN|TPM_RIGHTBUTTON, point.x, point.y, this);
 					m_nContextItem = i;
 				}

todo

@@ -16,7 +16,6 @@ gray, and the bottom half the bottom half of the astropulse graphics.
 They weren't moving. The computer was frozen. I had to ctrl-alt-del
 to restart.
 
-- Set "Show Graphics" disabled if app can't display graphics
 - Test BOINC error handling on UNIX if app can't start up (use bad path name)
 - If BOINC starts up before the taskbar is available, it is inaccessible
 - GUI client should display "Upload failed" and "Download failed"