Added Image::Bitmap::getBounds method.

extras/Introjucer/Source/Utility/jucer_JucerTreeViewBase.h

@@ -169,14 +169,19 @@ public:
         }
     }
 
+    static void drawEmptyPanelMessage (Component& comp, Graphics& g, const String& message)
+    {
+        const int fontHeight = 13;
+        const Rectangle<int> area (comp.getLocalBounds());
+        g.setColour (comp.findColour (mainBackgroundColourId).contrasting (0.7f));
+        g.setFont ((float) fontHeight);
+        g.drawFittedText (message, area.reduced (4, 2), Justification::centred, area.getHeight() / fontHeight);
+    }
+
     void paint (Graphics& g)
     {
         if (emptyTreeMessage.isNotEmpty() && (rootItem == nullptr || rootItem->getNumSubItems() == 0))
-        {
-            g.setColour (findColour (mainBackgroundColourId).contrasting (0.7f));
-            g.setFont (13.0f);
-            g.drawFittedText (emptyTreeMessage, getLocalBounds().reduced (4, 2), Justification::centred, 50);
-        }
+            drawEmptyPanelMessage (*this, g, emptyTreeMessage);
     }
 
     void resized()

modules/juce_graphics/images/juce_Image.h

@@ -346,9 +346,14 @@ public:
         */
         void setPixelColour (int x, int y, const Colour& colour) const noexcept;
 
-        uint8* data;
-        PixelFormat pixelFormat;
-        int lineStride, pixelStride, width, height;
+        /** Returns the size of the bitmap. */
+        Rectangle<int> getBounds() const noexcept                           { return Rectangle<int> (width, height); }
+
+        uint8* data;             /**< The raw pixel data, packed according to the image's pixel format. */
+        PixelFormat pixelFormat; /**< The format of the data. */
+        int lineStride;          /**< The number of bytes between each line. */
+        int pixelStride;         /**< The number of bytes between each pixel. */
+        int width, height;
 
         //==============================================================================
         /** Used internally by custom image types to manage pixel data lifetime. */
@@ -379,8 +384,7 @@ public:
         @param alphaThreshold   for a semi-transparent image, any pixels whose alpha is
                                 above this level will be considered opaque
     */
-    void createSolidAreaMask (RectangleList& result,
-                              float alphaThreshold = 0.5f) const;
+    void createSolidAreaMask (RectangleList& result, float alphaThreshold) const;
 
     //==============================================================================
     /** Returns a NamedValueSet that is attached to the image and which can be used for