From 94da373c31eb04ec4cff03c1ee6eb51a85ce11f7 Mon Sep 17 00:00:00 2001
From: jules <jules@rawmaterialsoftware.com>
Date: Tue, 17 Sep 2013 10:23:17 +0100
Subject: [PATCH] Fixed a couple of rendering problems when using global scale
 factors.

---
 extras/Introjucer/Source/Project/jucer_Module.cpp     |  3 +--
 modules/juce_gui_basics/components/juce_Component.cpp | 11 ++++++++---
 .../juce_gui_basics/windows/juce_ComponentPeer.cpp    |  8 +++++---
 3 files changed, 14 insertions(+), 8 deletions(-)

diff --git a/extras/Introjucer/Source/Project/jucer_Module.cpp b/extras/Introjucer/Source/Project/jucer_Module.cpp
index 86a9dd14fe..a99c009ffd 100644
--- a/extras/Introjucer/Source/Project/jucer_Module.cpp
+++ b/extras/Introjucer/Source/Project/jucer_Module.cpp
@@ -138,8 +138,7 @@ File AvailableModuleList::getModulesFolderForJuceOrModulesFolder (const File& f)
 File AvailableModuleList::getModulesFolderForExporter (const ProjectExporter& exporter)
 {
     File f (exporter.getProject().resolveFilename (exporter.getJuceFolderString()));
-    f = getModulesFolderForJuceOrModulesFolder (f);
-    return f;
+    return getModulesFolderForJuceOrModulesFolder (f);
 }
 
 File AvailableModuleList::getDefaultModulesFolder (Project* project)
diff --git a/modules/juce_gui_basics/components/juce_Component.cpp b/modules/juce_gui_basics/components/juce_Component.cpp
index 18255f00c5..ebae01c3d5 100644
--- a/modules/juce_gui_basics/components/juce_Component.cpp
+++ b/modules/juce_gui_basics/components/juce_Component.cpp
@@ -1872,9 +1872,14 @@ void Component::internalRepaintUnchecked (const Rectangle<int>& area, const bool
             CHECK_MESSAGE_MANAGER_IS_LOCKED
 
             if (ComponentPeer* const peer = getPeer())
-                peer->repaint (ComponentHelpers::scaledScreenPosToUnscaled (*this,
-                                                                            affineTransform != nullptr ? area.transformedBy (*affineTransform)
-                                                                                                       : area));
+            {
+                // Tweak the scaling so that the component's integer size exactly aligns with the peer's scaled size
+                const Rectangle<int> peerBounds (peer->getBounds());
+                const Rectangle<int> scaled (area * Point<float> (peerBounds.getWidth()  / (float) getWidth(),
+                                                                  peerBounds.getHeight() / (float) getHeight()));
+
+                peer->repaint (affineTransform != nullptr ? scaled.transformedBy (*affineTransform) : scaled);
+            }
         }
         else
         {
diff --git a/modules/juce_gui_basics/windows/juce_ComponentPeer.cpp b/modules/juce_gui_basics/windows/juce_ComponentPeer.cpp
index 475d24dd03..01daad7968 100644
--- a/modules/juce_gui_basics/windows/juce_ComponentPeer.cpp
+++ b/modules/juce_gui_basics/windows/juce_ComponentPeer.cpp
@@ -111,10 +111,12 @@ void ComponentPeer::handlePaint (LowLevelGraphicsContext& contextToPaintTo)
     if (component.isTransformed())
         g.addTransform (component.getTransform());
 
-    const float masterScale = component.getDesktopScaleFactor();
+    const Rectangle<int> peerBounds (getBounds());
 
-    if (masterScale != 1.0f)
-        g.addTransform (AffineTransform::scale (masterScale));
+    if (peerBounds.getWidth() != component.getWidth() || peerBounds.getHeight() != component.getHeight())
+        // Tweak the scaling so that the component's integer size exactly aligns with the peer's scaled size
+        g.addTransform (AffineTransform::scale (peerBounds.getWidth()  / (float) component.getWidth(),
+                                                peerBounds.getHeight() / (float) component.getHeight()));
 
    #if JUCE_ENABLE_REPAINT_DEBUGGING
     g.saveState();