Fix draw issue in SDL after vertex precalculation.

6 files changed, 30 insertions, 3 deletions

diff --git a/src/graphics.h b/src/graphics.h
index a331c21ba..423279fb0 100644
--- a/src/graphics.h
+++ b/src/graphics.h
@@ -255,6 +255,12 @@ class Graphics : public gcn::SDLGraphics
         gcn::ClipRectangle &getTopClip()
         { return mClipStack.top(); }
 
+        void setRedraw(bool n)
+        { mRedraw = n; }
+
+        bool getRedraw()
+        { return mRedraw; }
+
     protected:
         int SDL_FakeUpperBlit (SDL_Surface *src, SDL_Rect *srcrect,
                                SDL_Surface *dst, SDL_Rect *dstrect);
@@ -265,6 +271,7 @@ class Graphics : public gcn::SDLGraphics
         bool mFullscreen;
         bool mHWAccel;
         BlitMode mBlitMode;
+        bool mRedraw;
 };
 
 extern Graphics *graphics;
diff --git a/src/gui/widgets/button.cpp b/src/gui/widgets/button.cpp
index 91d297846..c0f174b2c 100644
--- a/src/gui/widgets/button.cpp
+++ b/src/gui/widgets/button.cpp
@@ -210,6 +210,10 @@ void Button::draw(gcn::Graphics *graphics)
             recalc = true;
             mMode = mode;
         }
+        else if (static_cast<Graphics*>(graphics)->getRedraw())
+        {
+            recalc = true;
+        }
     }
 
     if (recalc)
diff --git a/src/gui/widgets/progressbar.cpp b/src/gui/widgets/progressbar.cpp
index 0916d9976..bbde65207 100644
--- a/src/gui/widgets/progressbar.cpp
+++ b/src/gui/widgets/progressbar.cpp
@@ -204,7 +204,7 @@ void ProgressBar::render(Graphics *graphics, const gcn::Rectangle &area,
     gcn::Font *oldFont = graphics->getFont();
     gcn::Color oldColor = graphics->getColor();
 
-    if (*redraw)
+    if (*redraw || graphics->getRedraw())
     {
         *redraw = false;
         static_cast<Graphics*>(graphics)->calcWindow(vert,
diff --git a/src/gui/widgets/scrollarea.cpp b/src/gui/widgets/scrollarea.cpp
index 0be492ee6..59e323e94 100644
--- a/src/gui/widgets/scrollarea.cpp
+++ b/src/gui/widgets/scrollarea.cpp
@@ -350,6 +350,10 @@ void ScrollArea::drawFrame(gcn::Graphics *graphics)
                 mDrawWidth = rect.width;
                 mDrawHeight = rect.height;
             }
+            else if (static_cast<Graphics*>(graphics)->getRedraw())
+            {
+                recalc = true;
+            }
         }
 
         if (recalc)
diff --git a/src/gui/widgets/tab.cpp b/src/gui/widgets/tab.cpp
index 73ffff30e..5e4a147c0 100644
--- a/src/gui/widgets/tab.cpp
+++ b/src/gui/widgets/tab.cpp
@@ -190,7 +190,8 @@ void Tab::draw(gcn::Graphics *graphics)
     updateAlpha();
 
     // draw tab
-    if (mRedraw || mode != mMode)
+    if (mRedraw || mode != mMode
+        || static_cast<Graphics*>(graphics)->getRedraw())
     {
         mMode = mode;
         mRedraw = false;
diff --git a/src/gui/widgets/window.cpp b/src/gui/widgets/window.cpp
index 72530db8f..df8599b95 100644
--- a/src/gui/widgets/window.cpp
+++ b/src/gui/widgets/window.cpp
@@ -131,10 +131,12 @@ void Window::draw(gcn::Graphics *graphics)
         return;
 
     Graphics *g = static_cast<Graphics*>(graphics);
+    bool update = false;
 
     if (mRedraw)
     {
         mRedraw = false;
+        update = true;
         g->calcWindow(mVertexes, 0, 0, getWidth(),
             getHeight(), mSkin->getBorder());
     }
@@ -176,7 +178,16 @@ void Window::draw(gcn::Graphics *graphics)
         }
     }
 
-    drawChildren(graphics);
+    if (update)
+    {
+        g->setRedraw(update);
+        drawChildren(graphics);
+        g->setRedraw(false);
+    }
+    else
+    {
+        drawChildren(graphics);
+    }
 }
 
 void Window::setContentSize(int width, int height)