Some fixes for minor graphical problems.

modules/juce_graphics/native/juce_RenderingHelpers.h

@@ -2270,6 +2270,14 @@ public:
             renderImage (sourceImage, trans, nullptr);
     }
 
+    static bool isOnlyTranslationAllowingError (const AffineTransform& t)
+    {
+        return (std::abs (t.mat01) < 0.002)
+            && (std::abs (t.mat10) < 0.002)
+            && (std::abs (t.mat00 - 1.0f) < 0.002)
+            && (std::abs (t.mat11 - 1.0f) < 0.002);
+    }
+
     void renderImage (const Image& sourceImage, const AffineTransform& trans,
                       const BaseRegionType* const tiledFillClipRegion)
     {
@@ -2277,7 +2285,7 @@ public:
 
         const int alpha = fillType.colour.getAlpha();
 
-        if (t.isOnlyTranslation())
+        if (isOnlyTranslationAllowingError (t))
         {
             // If our translation doesn't involve any distortion, just use a simple blit..
             int tx = (int) (t.getTranslationX() * 256.0f);

modules/juce_gui_basics/components/juce_Component.cpp

@@ -2023,7 +2023,8 @@ void Component::paintEntireComponent (Graphics& g, const bool ignoreAlphaLevel)
                            scaledBounds.getWidth(), scaledBounds.getHeight(), ! flags.opaqueFlag);
         {
             Graphics g2 (effectImage);
-            g2.addTransform (AffineTransform::scale (scale));
+            g2.addTransform (AffineTransform::scale (scaledBounds.getWidth()  / (float) getWidth(),
+                                                     scaledBounds.getHeight() / (float) getHeight()));
             paintComponentAndChildren (g2);
         }
 
@@ -2058,7 +2059,7 @@ void Component::setPaintingIsUnclipped (const bool shouldPaintWithoutClipping) n
 
 //==============================================================================
 Image Component::createComponentSnapshot (const Rectangle<int>& areaToGrab,
-                                          const bool clipImageToComponentBounds)
+                                          bool clipImageToComponentBounds, float scaleFactor)
 {
     Rectangle<int> r (areaToGrab);
 
@@ -2068,14 +2069,21 @@ Image Component::createComponentSnapshot (const Rectangle<int>& areaToGrab,
     if (r.isEmpty())
         return Image();
 
-    Image componentImage (flags.opaqueFlag ? Image::RGB : Image::ARGB,
-                          r.getWidth(), r.getHeight(), true);
+    const int w = roundToInt (scaleFactor * r.getWidth());
+    const int h = roundToInt (scaleFactor * r.getHeight());
 
-    Graphics imageContext (componentImage);
-    imageContext.setOrigin (-r.getPosition());
-    paintEntireComponent (imageContext, true);
+    Image image (flags.opaqueFlag ? Image::RGB : Image::ARGB, w, h, true);
 
-    return componentImage;
+    Graphics g (image);
+
+    if (w != getWidth() || h != getHeight())
+        g.addTransform (AffineTransform::scale (w / (float) r.getWidth(),
+                                                h / (float) r.getHeight()));
+    g.setOrigin (-r.getPosition());
+
+    paintEntireComponent (g, true);
+
+    return image;
 }
 
 void Component::setComponentEffect (ImageEffectFilter* const newEffect)

modules/juce_gui_basics/components/juce_Component.h

@@ -1010,7 +1010,8 @@ public:
         @see paintEntireComponent
     */
     Image createComponentSnapshot (const Rectangle<int>& areaToGrab,
-                                   bool clipImageToComponentBounds = true);
+                                   bool clipImageToComponentBounds = true,
+                                   float scaleFactor = 1.0f);
 
     /** Draws this component and all its subcomponents onto the specified graphics
         context.

modules/juce_gui_basics/layout/juce_ComponentAnimator.cpp

@@ -136,7 +136,6 @@ public:
     {
     public:
         ProxyComponent (Component& c)
-            : image (c.createComponentSnapshot (c.getLocalBounds()))
         {
             setBounds (c.getBounds());
             setTransform (c.getTransform());
@@ -150,6 +149,8 @@ public:
             else
                 jassertfalse; // seem to be trying to animate a component that's not visible..
 
+            image = c.createComponentSnapshot (c.getLocalBounds(), false, getDesktopScaleFactor());
+
             setVisible (true);
             toBehind (&c);
         }

modules/juce_gui_basics/widgets/juce_TextEditor.cpp

@@ -556,15 +556,12 @@ public:
         }
     }
 
-    void drawSelection (Graphics& g, const Range<int> selected) const
+    void addSelection (RectangleList<float>& area, const Range<int> selected) const
     {
-        const int startX = roundToInt (indexToX (selected.getStart()));
-        const int endX   = roundToInt (indexToX (selected.getEnd()));
+        const float startX = indexToX (selected.getStart());
+        const float endX   = indexToX (selected.getEnd());
 
-        const int y = roundToInt (lineY);
-        const int nextY = roundToInt (lineY + lineHeight);
-
-        g.fillRect (startX, y, endX - startX, nextY - y);
+        area.add (startX, lineY, endX - startX, lineHeight);
     }
 
     void drawUnderline (Graphics& g, const Range<int> underline, const Colour colour) const
@@ -1617,20 +1614,23 @@ void TextEditor::drawContent (Graphics& g)
 
         if (! selection.isEmpty())
         {
-            g.setColour (findColour (highlightColourId).withMultipliedAlpha (hasKeyboardFocus (true) ? 1.0f : 0.5f));
-
-            selectedTextColour = findColour (highlightedTextColourId);
-
             Iterator i2 (i);
 
+            RectangleList<float> selectionArea;
+
             while (i2.next() && i2.lineY < clip.getBottom())
             {
                 if (i2.lineY + i2.lineHeight >= clip.getY()
                      && selection.intersects (Range<int> (i2.indexInText, i2.indexInText + i2.atom->numChars)))
                 {
-                    i2.drawSelection (g, selection);
+                    i2.addSelection (selectionArea, selection);
                 }
             }
+
+            g.setColour (findColour (highlightColourId).withMultipliedAlpha (hasKeyboardFocus (true) ? 1.0f : 0.5f));
+            g.fillRectList (selectionArea);
+
+            selectedTextColour = findColour (highlightedTextColourId);
         }
 
         const UniformTextSection* lastSection = nullptr;

modules/juce_gui_extra/code_editor/juce_CodeEditorComponent.cpp

@@ -83,8 +83,8 @@ public:
     void getHighlightArea (RectangleList<float>& area, float x, int y, int lineH, float characterWidth) const
     {
         if (highlightColumnStart < highlightColumnEnd)
-            area.addWithoutMerging (Rectangle<float> (x + highlightColumnStart * characterWidth, (float) y,
-                                                      (highlightColumnEnd - highlightColumnStart) * characterWidth, (float) lineH));
+            area.add (Rectangle<float> (x + highlightColumnStart * characterWidth - 1.0f, y - 0.5f,
+                                        (highlightColumnEnd - highlightColumnStart) * characterWidth + 1.5f, lineH + 1.0f));
     }
 
     void draw (CodeEditorComponent& owner, Graphics& g, const Font& fontToUse,

modules/juce_opengl/opengl/juce_OpenGLHelpers.cpp

@@ -272,8 +272,8 @@ OpenGLTextureFromImage::OpenGLTextureFromImage (const Image& image)
         texture->loadImage (image);
         textureID = texture->getTextureID();
 
-        fullWidthProportion  = imageWidth  / (float) texture->getWidth();
-        fullHeightProportion = imageHeight / (float) texture->getHeight();
+        fullWidthProportion  = (imageWidth - 0.5f)  / texture->getWidth();
+        fullHeightProportion = (imageHeight - 0.5f) / texture->getHeight();
     }
 
     JUCE_CHECK_OPENGL_ERROR