1 files changed, 20 insertions, 24 deletions
diff --git a/src/Gui/RenderArea.cpp b/src/Gui/RenderArea.cpp
index eb1f3eb..f27e009 100644
--- a/src/Gui/RenderArea.cpp
+++ b/src/Gui/RenderArea.cpp
@@ -76,7 +76,24 @@ void RenderArea::onRealize() {
 }
 
 bool RenderArea::onConfigureEvent(GdkEventConfigure*) {
-  updateViewport();
+  if(!gdkGLBegin())
+    return false;
+  
+  glViewport(0, 0, get_width(), get_height());
+  
+  glMatrixMode(GL_PROJECTION);
+  glLoadIdentity();
+  
+  if(get_width() != 0 && get_height() != 0)
+    glScalef(2.0f/get_width(), -2.0f/get_height(), 1);
+  
+  gdkGLEnd();
+  
+  viewWidth = get_width()/scale;
+  viewHeight = get_height()/scale;
+  
+  queue_draw();
+  
   return true;
 }
 
@@ -121,31 +138,10 @@ void RenderArea::zoom(int zoom, float x, float y) {
   zoomLevel = std::max(std::min(zoomLevel + zoom, 50), -100);
   scale = 100*std::pow(1.1f, zoomLevel);
   
-  updateScrolling(x, y);
-}
-
-void RenderArea::updateViewport() {
-  if(!gdkGLBegin())
-    return;
-  
-  glViewport(0, 0, get_width(), get_height());
-  
-  glMatrixMode(GL_PROJECTION);
-  glLoadIdentity();
-  
-  if(get_width() != 0 && get_height() != 0)
-    glScalef(2.0f/get_width(), -2.0f/get_height(), 1);
-  
-  gdkGLEnd();
-  
-  updateScrolling();
-}
-
-void RenderArea::updateScrolling(float x, float y) {
   const float newWidth = get_width()/scale, newHeight = get_height()/scale;
   
-  xCenter += (x-0.5)*(viewWidth-newWidth);
-  yCenter += (y-0.5)*(viewHeight-newHeight);
+  xCenter += (x-0.5f)*(viewWidth-newWidth);
+  yCenter += (y-0.5f)*(viewHeight-newHeight);
   
   viewWidth = newWidth;
   viewHeight = newHeight;