Fixed|Busy Mode: Screen capture for transition-free busy mode

If there will be no animated transition at the end of the busy mode,
we must capture the entire view because busy mode currently takes
over the entire view. Otherwise, the sidebar would seem to disappear
during busy mode.

doomsday/client/include/busymode.h

@@ -43,6 +43,10 @@ boolean BusyMode_IsWorkerThread(uint threadId);
 /// @return  @c true if the current thread is the busy task worker.
 boolean BusyMode_InWorkerThread(void);
 
+#ifdef __CLIENT__
+boolean BusyMode_IsTransitionAnimated(void);
+#endif
+
 /// @return  Current busy task, else @c NULL.
 BusyTask* BusyMode_CurrentTask(void);
 

doomsday/client/src/busymode.cpp

@@ -230,6 +230,13 @@ static int runTask(BusyTask* task)
 #endif
 }
 
+#ifdef __CLIENT__
+boolean BusyMode_IsTransitionAnimated(void)
+{
+    return busyWillAnimateTransition;
+}
+#endif
+
 static void preBusySetup(int initialMode)
 {
 #ifdef __CLIENT__

doomsday/client/src/ui/widgets/busywidget.cpp

@@ -144,15 +144,22 @@ bool BusyWidget::handleEvent(Event const &)
 
 void BusyWidget::grabTransitionScreenshot()
 {
-    GLTexture::Size size(rule().width().valuei() / 2,
-                         rule().height().valuei() / 2);
+    //GLTexture::Size size(rule().width().valuei() / 2,
+    //                         rule().height().valuei() / 2);
+
+    Rectanglei grabRect = Rectanglei::fromSize(root().window().canvas().size());
+
+    if(BusyMode_IsTransitionAnimated())
+    {
+        // Animation transitions are drawn only inside LegacyWidget, so just
+        // grab that portion of the screen.
+        grabRect = root().window().game().rule().recti();
+    }
 
     // Grab the game view's rectangle, as that's where the transition will be drawn.
-    GLuint grabbed = root().window().grabAsTexture(
-                root().window().game().rule().recti(),
-                ClientWindow::GrabHalfSized);
+    GLuint grabbed = root().window().grabAsTexture(grabRect, ClientWindow::GrabHalfSized);
 
-    d->transitionTex.reset(new GLTexture(grabbed, size));
+    d->transitionTex.reset(new GLTexture(grabbed, grabRect.size() / 2));
     d->uTex = *d->transitionTex;
 }
 

doomsday/libgui/src/canvaswindow.cpp

@@ -231,7 +231,7 @@ duint CanvasWindow::grabAsTexture(Rectanglei const &area, GrabMode mode) const
     QSize size;
     if(mode == GrabHalfSized)
     {
-        size = QSize(width()/2, height()/2);
+        size = QSize(area.width()/2, area.height()/2);
     }
     return d->canvas->grabAsTexture(
                 QRect(area.left(), area.top(), area.width(), area.height()), size);