Added an alpha setting to Components with Component::setAlpha(). Removed Component::fadeOutComponent method and instead refactored the ComponentAnimator class to provide fading in and out of the alpha level. Added a method Desktop::getAnimator() that provides a global instance of a ComponentAnimator so that there's no need to create your own.

Builds/Linux/Makefile

@@ -249,7 +249,6 @@ OBJECTS := \
   $(OBJDIR)/juce_SVGParser_b79416c5.o \
   $(OBJDIR)/juce_DropShadowEffect_da52d75.o \
   $(OBJDIR)/juce_GlowEffect_c0959893.o \
-  $(OBJDIR)/juce_ReduceOpacityEffect_e8e7a60b.o \
   $(OBJDIR)/juce_Font_fa88db26.o \
   $(OBJDIR)/juce_GlyphArrangement_f0797295.o \
   $(OBJDIR)/juce_TextLayout_d18f700e.o \
@@ -1414,11 +1413,6 @@ $(OBJDIR)/juce_GlowEffect_c0959893.o: ../../src/gui/graphics/effects/juce_GlowEf
 	@echo "Compiling juce_GlowEffect.cpp"
 	@$(CXX) $(CXXFLAGS) -o "$@" -c "$<"
 
-$(OBJDIR)/juce_ReduceOpacityEffect_e8e7a60b.o: ../../src/gui/graphics/effects/juce_ReduceOpacityEffect.cpp
-	-@mkdir -p $(OBJDIR)
-	@echo "Compiling juce_ReduceOpacityEffect.cpp"
-	@$(CXX) $(CXXFLAGS) -o "$@" -c "$<"
-
 $(OBJDIR)/juce_Font_fa88db26.o: ../../src/gui/graphics/fonts/juce_Font.cpp
 	-@mkdir -p $(OBJDIR)
 	@echo "Compiling juce_Font.cpp"

Builds/MacOSX/Juce.xcodeproj/project.pbxproj

@@ -218,7 +218,6 @@
 		645AF66C048A4815F5A8ECDD = { isa = PBXBuildFile; fileRef = 2BFC199D03DEEC329D6A7CB1; };
 		38EFE824E76B3BB99824C265 = { isa = PBXBuildFile; fileRef = 32EA297812F1C88B42099501; };
 		E23C5C51305DC7CE30E4DAB7 = { isa = PBXBuildFile; fileRef = CB649686575473223C859482; };
-		89C96A721F3B54CF3F33848C = { isa = PBXBuildFile; fileRef = 7EBBC368FA350F786EF446B7; };
 		B92F53BABB6A9AC8348B001E = { isa = PBXBuildFile; fileRef = 78068AA59A5DCFCCAAEA79D0; };
 		EBC3AA015D24C62FA0307F51 = { isa = PBXBuildFile; fileRef = 61D06B694603F608CDA0703B; };
 		803FFCA3DAC0C004A80143B4 = { isa = PBXBuildFile; fileRef = 91CB423DBC5F3CBEDD9CF2EF; };
@@ -834,8 +833,6 @@
 		CB649686575473223C859482 = { isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = juce_GlowEffect.cpp; path = ../../src/gui/graphics/effects/juce_GlowEffect.cpp; sourceTree = SOURCE_ROOT; };
 		FD1FA4ABB4226372235643E4 = { isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = juce_GlowEffect.h; path = ../../src/gui/graphics/effects/juce_GlowEffect.h; sourceTree = SOURCE_ROOT; };
 		18DB9BD10F140F132A3279C3 = { isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = juce_ImageEffectFilter.h; path = ../../src/gui/graphics/effects/juce_ImageEffectFilter.h; sourceTree = SOURCE_ROOT; };
-		7EBBC368FA350F786EF446B7 = { isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = juce_ReduceOpacityEffect.cpp; path = ../../src/gui/graphics/effects/juce_ReduceOpacityEffect.cpp; sourceTree = SOURCE_ROOT; };
-		8D18743ECC1BF12381811FD6 = { isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = juce_ReduceOpacityEffect.h; path = ../../src/gui/graphics/effects/juce_ReduceOpacityEffect.h; sourceTree = SOURCE_ROOT; };
 		78068AA59A5DCFCCAAEA79D0 = { isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = juce_Font.cpp; path = ../../src/gui/graphics/fonts/juce_Font.cpp; sourceTree = SOURCE_ROOT; };
 		0401EA0E883CCAAAC6960A27 = { isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = juce_Font.h; path = ../../src/gui/graphics/fonts/juce_Font.h; sourceTree = SOURCE_ROOT; };
 		61D06B694603F608CDA0703B = { isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = juce_GlyphArrangement.cpp; path = ../../src/gui/graphics/fonts/juce_GlyphArrangement.cpp; sourceTree = SOURCE_ROOT; };
@@ -1592,9 +1589,7 @@
 				85D4043F9E25047E07496DAC,
 				CB649686575473223C859482,
 				FD1FA4ABB4226372235643E4,
-				18DB9BD10F140F132A3279C3,
-				7EBBC368FA350F786EF446B7,
-				8D18743ECC1BF12381811FD6 ); name = effects; sourceTree = "<group>"; };
+				18DB9BD10F140F132A3279C3 ); name = effects; sourceTree = "<group>"; };
 		58FE42C578BFFD1F8F545B39 = { isa = PBXGroup; children = (
 				78068AA59A5DCFCCAAEA79D0,
 				0401EA0E883CCAAAC6960A27,
@@ -2143,7 +2138,6 @@
 				645AF66C048A4815F5A8ECDD,
 				38EFE824E76B3BB99824C265,
 				E23C5C51305DC7CE30E4DAB7,
-				89C96A721F3B54CF3F33848C,
 				B92F53BABB6A9AC8348B001E,
 				EBC3AA015D24C62FA0307F51,
 				803FFCA3DAC0C004A80143B4,

Builds/VisualStudio2005/Juce.vcproj

@@ -737,8 +737,6 @@
               <File RelativePath="..\..\src\gui\graphics\effects\juce_GlowEffect.cpp"/>
               <File RelativePath="..\..\src\gui\graphics\effects\juce_GlowEffect.h"/>
               <File RelativePath="..\..\src\gui\graphics\effects\juce_ImageEffectFilter.h"/>
-              <File RelativePath="..\..\src\gui\graphics\effects\juce_ReduceOpacityEffect.cpp"/>
-              <File RelativePath="..\..\src\gui\graphics\effects\juce_ReduceOpacityEffect.h"/>
             </Filter>
             <Filter Name="fonts">
               <File RelativePath="..\..\src\gui\graphics\fonts\juce_Font.cpp"/>

Builds/VisualStudio2008/Juce.vcproj

@@ -737,8 +737,6 @@
               <File RelativePath="..\..\src\gui\graphics\effects\juce_GlowEffect.cpp"/>
               <File RelativePath="..\..\src\gui\graphics\effects\juce_GlowEffect.h"/>
               <File RelativePath="..\..\src\gui\graphics\effects\juce_ImageEffectFilter.h"/>
-              <File RelativePath="..\..\src\gui\graphics\effects\juce_ReduceOpacityEffect.cpp"/>
-              <File RelativePath="..\..\src\gui\graphics\effects\juce_ReduceOpacityEffect.h"/>
             </Filter>
             <Filter Name="fonts">
               <File RelativePath="..\..\src\gui\graphics\fonts\juce_Font.cpp"/>

Builds/VisualStudio2008_DLL/Juce.vcproj

@@ -739,8 +739,6 @@
               <File RelativePath="..\..\src\gui\graphics\effects\juce_GlowEffect.cpp"/>
               <File RelativePath="..\..\src\gui\graphics\effects\juce_GlowEffect.h"/>
               <File RelativePath="..\..\src\gui\graphics\effects\juce_ImageEffectFilter.h"/>
-              <File RelativePath="..\..\src\gui\graphics\effects\juce_ReduceOpacityEffect.cpp"/>
-              <File RelativePath="..\..\src\gui\graphics\effects\juce_ReduceOpacityEffect.h"/>
             </Filter>
             <Filter Name="fonts">
               <File RelativePath="..\..\src\gui\graphics\fonts\juce_Font.cpp"/>

Builds/VisualStudio2010/Juce.vcxproj

@@ -332,7 +332,6 @@
     <ClCompile Include="..\..\src\gui\graphics\drawables\juce_SVGParser.cpp"/>
     <ClCompile Include="..\..\src\gui\graphics\effects\juce_DropShadowEffect.cpp"/>
     <ClCompile Include="..\..\src\gui\graphics\effects\juce_GlowEffect.cpp"/>
-    <ClCompile Include="..\..\src\gui\graphics\effects\juce_ReduceOpacityEffect.cpp"/>
     <ClCompile Include="..\..\src\gui\graphics\fonts\juce_Font.cpp"/>
     <ClCompile Include="..\..\src\gui\graphics\fonts\juce_GlyphArrangement.cpp"/>
     <ClCompile Include="..\..\src\gui\graphics\fonts\juce_TextLayout.cpp"/>
@@ -700,7 +699,6 @@
     <ClInclude Include="..\..\src\gui\graphics\effects\juce_DropShadowEffect.h"/>
     <ClInclude Include="..\..\src\gui\graphics\effects\juce_GlowEffect.h"/>
     <ClInclude Include="..\..\src\gui\graphics\effects\juce_ImageEffectFilter.h"/>
-    <ClInclude Include="..\..\src\gui\graphics\effects\juce_ReduceOpacityEffect.h"/>
     <ClInclude Include="..\..\src\gui\graphics\fonts\juce_Font.h"/>
     <ClInclude Include="..\..\src\gui\graphics\fonts\juce_GlyphArrangement.h"/>
     <ClInclude Include="..\..\src\gui\graphics\fonts\juce_TextLayout.h"/>

Builds/VisualStudio2010/Juce.vcxproj.filters

@@ -844,9 +844,6 @@
     <ClCompile Include="..\..\src\gui\graphics\effects\juce_GlowEffect.cpp">
       <Filter>Juce\Source\gui\graphics\effects</Filter>
     </ClCompile>
-    <ClCompile Include="..\..\src\gui\graphics\effects\juce_ReduceOpacityEffect.cpp">
-      <Filter>Juce\Source\gui\graphics\effects</Filter>
-    </ClCompile>
     <ClCompile Include="..\..\src\gui\graphics\fonts\juce_Font.cpp">
       <Filter>Juce\Source\gui\graphics\fonts</Filter>
     </ClCompile>
@@ -2022,9 +2019,6 @@
     <ClInclude Include="..\..\src\gui\graphics\effects\juce_ImageEffectFilter.h">
       <Filter>Juce\Source\gui\graphics\effects</Filter>
     </ClInclude>
-    <ClInclude Include="..\..\src\gui\graphics\effects\juce_ReduceOpacityEffect.h">
-      <Filter>Juce\Source\gui\graphics\effects</Filter>
-    </ClInclude>
     <ClInclude Include="..\..\src\gui\graphics\fonts\juce_Font.h">
       <Filter>Juce\Source\gui\graphics\fonts</Filter>
     </ClInclude>

Builds/iPhone/Juce.xcodeproj/project.pbxproj

@@ -218,7 +218,6 @@
 		645AF66C048A4815F5A8ECDD = { isa = PBXBuildFile; fileRef = 2BFC199D03DEEC329D6A7CB1; };
 		38EFE824E76B3BB99824C265 = { isa = PBXBuildFile; fileRef = 32EA297812F1C88B42099501; };
 		E23C5C51305DC7CE30E4DAB7 = { isa = PBXBuildFile; fileRef = CB649686575473223C859482; };
-		89C96A721F3B54CF3F33848C = { isa = PBXBuildFile; fileRef = 7EBBC368FA350F786EF446B7; };
 		B92F53BABB6A9AC8348B001E = { isa = PBXBuildFile; fileRef = 78068AA59A5DCFCCAAEA79D0; };
 		EBC3AA015D24C62FA0307F51 = { isa = PBXBuildFile; fileRef = 61D06B694603F608CDA0703B; };
 		803FFCA3DAC0C004A80143B4 = { isa = PBXBuildFile; fileRef = 91CB423DBC5F3CBEDD9CF2EF; };
@@ -834,8 +833,6 @@
 		CB649686575473223C859482 = { isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = juce_GlowEffect.cpp; path = ../../src/gui/graphics/effects/juce_GlowEffect.cpp; sourceTree = SOURCE_ROOT; };
 		FD1FA4ABB4226372235643E4 = { isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = juce_GlowEffect.h; path = ../../src/gui/graphics/effects/juce_GlowEffect.h; sourceTree = SOURCE_ROOT; };
 		18DB9BD10F140F132A3279C3 = { isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = juce_ImageEffectFilter.h; path = ../../src/gui/graphics/effects/juce_ImageEffectFilter.h; sourceTree = SOURCE_ROOT; };
-		7EBBC368FA350F786EF446B7 = { isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = juce_ReduceOpacityEffect.cpp; path = ../../src/gui/graphics/effects/juce_ReduceOpacityEffect.cpp; sourceTree = SOURCE_ROOT; };
-		8D18743ECC1BF12381811FD6 = { isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = juce_ReduceOpacityEffect.h; path = ../../src/gui/graphics/effects/juce_ReduceOpacityEffect.h; sourceTree = SOURCE_ROOT; };
 		78068AA59A5DCFCCAAEA79D0 = { isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = juce_Font.cpp; path = ../../src/gui/graphics/fonts/juce_Font.cpp; sourceTree = SOURCE_ROOT; };
 		0401EA0E883CCAAAC6960A27 = { isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; name = juce_Font.h; path = ../../src/gui/graphics/fonts/juce_Font.h; sourceTree = SOURCE_ROOT; };
 		61D06B694603F608CDA0703B = { isa = PBXFileReference; lastKnownFileType = sourcecode.cpp.cpp; name = juce_GlyphArrangement.cpp; path = ../../src/gui/graphics/fonts/juce_GlyphArrangement.cpp; sourceTree = SOURCE_ROOT; };
@@ -1592,9 +1589,7 @@
 				85D4043F9E25047E07496DAC,
 				CB649686575473223C859482,
 				FD1FA4ABB4226372235643E4,
-				18DB9BD10F140F132A3279C3,
-				7EBBC368FA350F786EF446B7,
-				8D18743ECC1BF12381811FD6 ); name = effects; sourceTree = "<group>"; };
+				18DB9BD10F140F132A3279C3 ); name = effects; sourceTree = "<group>"; };
 		58FE42C578BFFD1F8F545B39 = { isa = PBXGroup; children = (
 				78068AA59A5DCFCCAAEA79D0,
 				0401EA0E883CCAAAC6960A27,
@@ -2143,7 +2138,6 @@
 				645AF66C048A4815F5A8ECDD,
 				38EFE824E76B3BB99824C265,
 				E23C5C51305DC7CE30E4DAB7,
-				89C96A721F3B54CF3F33848C,
 				B92F53BABB6A9AC8348B001E,
 				EBC3AA015D24C62FA0307F51,
 				803FFCA3DAC0C004A80143B4,

Juce.jucer

@@ -1083,10 +1083,6 @@
                   file="src/gui/graphics/effects/juce_GlowEffect.h"/>
             <FILE id="raUYTlokJ" name="juce_ImageEffectFilter.h" compile="0" resource="0"
                   file="src/gui/graphics/effects/juce_ImageEffectFilter.h"/>
-            <FILE id="TTo5FPVpI" name="juce_ReduceOpacityEffect.cpp" compile="1"
-                  resource="0" file="src/gui/graphics/effects/juce_ReduceOpacityEffect.cpp"/>
-            <FILE id="TyJK1WbMk" name="juce_ReduceOpacityEffect.h" compile="0"
-                  resource="0" file="src/gui/graphics/effects/juce_ReduceOpacityEffect.h"/>
           </GROUP>
           <GROUP id="nw92NleR1" name="fonts">
             <FILE id="2zj67pVi" name="juce_Font.cpp" compile="1" resource="0" file="src/gui/graphics/fonts/juce_Font.cpp"/>

amalgamation/juce_amalgamated_template.cpp

@@ -350,7 +350,6 @@
  #include "../src/gui/graphics/drawables/juce_SVGParser.cpp"
  #include "../src/gui/graphics/effects/juce_DropShadowEffect.cpp"
  #include "../src/gui/graphics/effects/juce_GlowEffect.cpp"
- #include "../src/gui/graphics/effects/juce_ReduceOpacityEffect.cpp"
  #include "../src/gui/graphics/fonts/juce_Font.cpp"
  #include "../src/gui/graphics/fonts/juce_GlyphArrangement.cpp"
  #include "../src/gui/graphics/fonts/juce_TextLayout.cpp"

extras/juce demo/Source/demos/WidgetsDemo.cpp

@@ -610,7 +610,9 @@ public:
                                                            Random::getSystemRandom().nextInt (getHeight() / 2),
                                                            60 + Random::getSystemRandom().nextInt (getWidth() / 3),
                                                            16 + Random::getSystemRandom().nextInt (getHeight() / 6)),
+                                           Random::getSystemRandom().nextFloat(),
                                            500 + Random::getSystemRandom().nextInt (2000),
+                                           false,
                                            Random::getSystemRandom().nextDouble(),
                                            Random::getSystemRandom().nextDouble());
             }

juce_amalgamated.h

@@ -64,7 +64,7 @@
 */
 #define JUCE_MAJOR_VERSION	  1
 #define JUCE_MINOR_VERSION	  52
-#define JUCE_BUILDNUMBER	80
+#define JUCE_BUILDNUMBER	81
 
 /** Current Juce version number.
 
@@ -24909,6 +24909,13 @@ public:
 	*/
 	bool reduceClipRegion (int x, int y, int width, int height);
 
+	/** Intersects the current clipping region with another region.
+
+		@returns true if the resulting clipping region is non-zero in size
+		@see setOrigin, clipRegionIntersects
+	*/
+	bool reduceClipRegion (const Rectangle<int>& area);
+
 	/** Intersects the current clipping region with a rectangle list region.
 
 		@returns true if the resulting clipping region is non-zero in size
@@ -25019,9 +25026,12 @@ public:
 								its paint() method. The image may or may not have an alpha
 								channel, depending on whether the component is opaque.
 		@param destContext	  the graphics context to use to draw the resultant image.
+		@param alpha		the alpha with which to draw the resultant image to the
+								target context
 	*/
 	virtual void applyEffect (Image& sourceImage,
-							  Graphics& destContext) = 0;
+							  Graphics& destContext,
+							  float alpha) = 0;
 
 	/** Destructor. */
 	virtual ~ImageEffectFilter() {}
@@ -26010,31 +26020,6 @@ public:
 	*/
 	bool isShowing() const;
 
-	/** Makes a component invisible using a groovy fade-out and animated zoom effect.
-
-		To do this, this function will cunningly:
-			- take a snapshot of the component as it currently looks
-			- call setVisible(false) on the component
-			- replace it with a special component that will continue drawing the
-			  snapshot, animating it and gradually making it more transparent
-			- when it's gone, the special component will also be deleted
-
-		As soon as this method returns, the component can be safely removed and deleted
-		leaving the proxy to do the fade-out, so it's even ok to call this in a
-		component's destructor.
-
-		Passing non-zero x and y values will cause the ghostly component image to
-		also whizz off by this distance while fading out. If the scale factor is
-		not 1.0, it will also zoom from the component's current size to this new size.
-
-		One thing to be careful about is that the parent component must be able to cope
-		with this unknown component type being added to it.
-	*/
-	void fadeOutComponent (int lengthOfFadeOutInMilliseconds,
-						   int deltaXToMove = 0,
-						   int deltaYToMove = 0,
-						   float scaleFactorAtEnd = 1.0f);
-
 	/** Makes this component appear as a window on the desktop.
 
 		Note that before calling this, you should make sure that the component's opacity is
@@ -26742,8 +26727,12 @@ public:
 
 		The graphics context may be left in an undefined state after this method returns,
 		so you may need to reset it if you're going to use it again.
+
+		If ignoreAlphaLevel is false, then the component will be drawn with the opacity level
+		specified by getAlpha(); if ignoreAlphaLevel is true, then this will be ignored and
+		an alpha of 1.0 will be used.
 	*/
-	void paintEntireComponent (Graphics& context);
+	void paintEntireComponent (Graphics& context, bool ignoreAlphaLevel);
 
 	/** Adds an effect filter to alter the component's appearance.
 
@@ -27046,6 +27035,9 @@ public:
 	*/
 	virtual void enablementChanged();
 
+	void setAlpha (float newAlpha);
+	float getAlpha() const;
+
 	/** Changes the mouse cursor shape to use when the mouse is over this component.
 
 		Note that the cursor set by this method can be overridden by the getMouseCursor
@@ -27888,6 +27880,8 @@ private:
 		ComponentFlags flags;
 	};
 
+	uint8 componentTransparency;
+
 	void internalMouseEnter (MouseInputSource& source, const Point<int>& relativePos, const Time& time);
 	void internalMouseExit  (MouseInputSource& source, const Point<int>& relativePos, const Time& time);
 	void internalMouseDown  (MouseInputSource& source, const Point<int>& relativePos, const Time& time);
@@ -27903,7 +27897,7 @@ private:
 	void internalModifierKeysChanged();
 	void internalChildrenChanged();
 	void internalHierarchyChanged();
-	void renderComponent (Graphics& context);
+	void renderComponent (Graphics& g);
 	void sendMovedResizedMessages (bool wasMoved, bool wasResized);
 	void repaintParent();
 	void sendFakeMouseMove() const;
@@ -28807,6 +28801,139 @@ private:
 #endif   // __JUCE_TIMER_JUCEHEADER__
 /*** End of inlined file: juce_Timer.h ***/
 
+
+/*** Start of inlined file: juce_ComponentAnimator.h ***/
+#ifndef __JUCE_COMPONENTANIMATOR_JUCEHEADER__
+#define __JUCE_COMPONENTANIMATOR_JUCEHEADER__
+
+/**
+	Animates a set of components, moving them to a new position and/or fading their
+	alpha levels.
+
+	To animate a component, create a ComponentAnimator instance or (preferably) use the
+	global animator object provided by Desktop::getAnimator(), and call its animateComponent()
+	method to commence the movement.
+
+	If you're using your own ComponentAnimator instance, you'll need to make sure it isn't
+	deleted before it finishes moving the components, or they'll be abandoned before reaching their
+	destinations.
+
+	It's ok to delete components while they're being animated - the animator will detect this
+	and safely stop using them.
+
+	The class is a ChangeBroadcaster and sends a notification when any components
+	start or finish being animated.
+
+	@see Desktop::getAnimator
+*/
+class JUCE_API  ComponentAnimator  : public ChangeBroadcaster,
+									 private Timer
+{
+public:
+
+	/** Creates a ComponentAnimator. */
+	ComponentAnimator();
+
+	/** Destructor. */
+	~ComponentAnimator();
+
+	/** Starts a component moving from its current position to a specified position.
+
+		If the component is already in the middle of an animation, that will be abandoned,
+		and a new animation will begin, moving the component from its current location.
+
+		The start and end speed parameters let you apply some acceleration to the component's
+		movement.
+
+		@param component		the component to move
+		@param finalBounds	  the destination bounds to which the component should move. To leave the
+									component in the same place, just pass component->getBounds() for this value
+		@param finalAlpha	   the alpha value that the component should have at the end of the animation
+		@param animationDurationMilliseconds	how long the animation should last, in milliseconds
+		@param useProxyComponent	if true, this means the component should be replaced by an internally
+									managed temporary component which is a snapshot of the original component.
+									This avoids the component having to paint itself as it moves, so may
+									be more efficient. This option also allows you to delete the original
+									component immediately after starting the animation, because the animation
+									can proceed without it. If you use a proxy, the original component will be
+									made invisible by this call, and then will become visible again at the end
+									of the animation. It'll also mean that the proxy component will be temporarily
+									added to the component's parent, so avoid it if this might confuse the parent
+									component, or if there's a chance the parent might decide to delete its children.
+		@param startSpeed	   a value to indicate the relative start speed of the animation. If this is 0,
+									the component will start by accelerating from rest; higher values mean that it
+									will have an initial speed greater than zero. If the value if greater than 1, it
+									will decelerate towards the middle of its journey. To move the component at a
+									constant rate for its entire animation, set both the start and end speeds to 1.0
+		@param endSpeed		 a relative speed at which the component should be moving when the animation finishes.
+									If this is 0, the component will decelerate to a standstill at its final position;
+									higher values mean the component will still be moving when it stops. To move the component
+									at a constant rate for its entire animation, set both the start and end speeds to 1.0
+	*/
+	void animateComponent (Component* component,
+						   const Rectangle<int>& finalBounds,
+						   float finalAlpha,
+						   int animationDurationMilliseconds,
+						   bool useProxyComponent,
+						   double startSpeed,
+						   double endSpeed);
+
+	/** Begins a fade-out of this components alpha level.
+		This is a quick way of invoking animateComponent() with a target alpha value of 0.0f, using
+		a proxy. You're safe to delete the component after calling this method, and this won't
+		interfere with the animation's progress.
+	*/
+	void fadeOut (Component* component, int millisecondsToTake);
+
+	/** Begins a fade-in of a component.
+		This is a quick way of invoking animateComponent() with a target alpha value of 1.0f.
+	*/
+	void fadeIn (Component* component, int millisecondsToTake);
+
+	/** Stops a component if it's currently being animated.
+
+		If moveComponentToItsFinalPosition is true, then the component will
+		be immediately moved to its destination position and size. If false, it will be
+		left in whatever location it currently occupies.
+	*/
+	void cancelAnimation (Component* component,
+						  bool moveComponentToItsFinalPosition);
+
+	/** Clears all of the active animations.
+
+		If moveComponentsToTheirFinalPositions is true, all the components will
+		be immediately set to their final positions. If false, they will be
+		left in whatever locations they currently occupy.
+	*/
+	void cancelAllAnimations (bool moveComponentsToTheirFinalPositions);
+
+	/** Returns the destination position for a component.
+
+		If the component is being animated, this will return the target position that
+		was specified when animateComponent() was called.
+
+		If the specified component isn't currently being animated, this method will just
+		return its current position.
+	*/
+	const Rectangle<int> getComponentDestination (Component* component);
+
+	/** Returns true if the specified component is currently being animated. */
+	bool isAnimating (Component* component) const;
+
+	juce_UseDebuggingNewOperator
+
+private:
+	class AnimationTask;
+	OwnedArray <AnimationTask> tasks;
+	uint32 lastTime;
+
+	AnimationTask* findTaskFor (Component* component) const;
+	void timerCallback();
+};
+
+#endif   // __JUCE_COMPONENTANIMATOR_JUCEHEADER__
+/*** End of inlined file: juce_ComponentAnimator.h ***/
+
 class MouseInputSource;
 class MouseInputSourceInternal;
 class MouseListener;
@@ -28987,6 +29114,17 @@ public:
 	*/
 	Component* findComponentAt (const Point<int>& screenPosition) const;
 
+	/** The Desktop object has a ComponentAnimator instance which can be used for performing
+		your animations.
+
+		Having a single shared ComponentAnimator object makes it more efficient when multiple
+		components are being moved around simultaneously. It's also more convenient than having
+		to manage your own instance of one.
+
+		@see ComponentAnimator
+	*/
+	ComponentAnimator& getAnimator() throw()			{ return animator; }
+
 	/** Returns the number of MouseInputSource objects the system has at its disposal.
 		In a traditional single-mouse system, there might be only one object. On a multi-touch
 		system, there could be one input source per potential finger.
@@ -29091,6 +29229,8 @@ private:
 
 	int allowedOrientations;
 
+	ComponentAnimator animator;
+
 	void timerCallback();
 	void resetTimer();
 
@@ -42486,7 +42626,7 @@ public:
 	juce_UseDebuggingNewOperator
 
 private:
-	PropertyPanel* panel;
+	PropertyPanel panel;
 
 	GenericAudioProcessorEditor (const GenericAudioProcessorEditor&);
 	GenericAudioProcessorEditor& operator= (const GenericAudioProcessorEditor&);
@@ -43967,7 +44107,7 @@ public:
 							  int newShadowOffsetY);
 
 	/** @internal */
-	void applyEffect (Image& sourceImage, Graphics& destContext);
+	void applyEffect (Image& sourceImage, Graphics& destContext, float alpha);
 
 	juce_UseDebuggingNewOperator
 
@@ -44070,12 +44210,8 @@ public:
 	RelativeCoordinate (double absoluteDistanceFromOrigin);
 
 	/** Recreates a coordinate from a string description.
-
 		The string will be parsed by ExpressionParser::parse().
-
 		@param stringVersion	the expression to use
-		@param isHorizontal	 this must be true if this is an X coordinate, or false if it's on the Y axis.
-
 		@see toString
 	*/
 	RelativeCoordinate (const String& stringVersion);
@@ -45501,115 +45637,6 @@ private:
 #endif   // __JUCE_DRAGANDDROPCONTAINER_JUCEHEADER__
 /*** End of inlined file: juce_DragAndDropContainer.h ***/
 
-
-/*** Start of inlined file: juce_ComponentAnimator.h ***/
-#ifndef __JUCE_COMPONENTANIMATOR_JUCEHEADER__
-#define __JUCE_COMPONENTANIMATOR_JUCEHEADER__
-
-/**
-	Animates a set of components, moving it to a new position.
-
-	To use this, create a ComponentAnimator, and use its animateComponent() method
-	to tell it to move components to destination positions. Any number of
-	components can be animated by one ComponentAnimator object (if you've got a
-	lot of components to move, it's much more efficient to share a single animator
-	than to have many animators running at once).
-
-	You'll need to make sure the animator object isn't deleted before it finishes
-	moving the components.
-
-	The class is a ChangeBroadcaster and sends a notification when any components
-	start or finish being animated.
-*/
-class JUCE_API  ComponentAnimator  : public ChangeBroadcaster,
-									 private Timer
-{
-public:
-
-	/** Creates a ComponentAnimator. */
-	ComponentAnimator();
-
-	/** Destructor. */
-	~ComponentAnimator();
-
-	/** Starts a component moving from its current position to a specified position.
-
-		If the component is already in the middle of an animation, that will be abandoned,
-		and a new animation will begin, moving the component from its current location.
-
-		The start and end speed parameters let you apply some acceleration to the component's
-		movement.
-
-		@param component		the component to move
-		@param finalPosition	the destination position and size to move it to
-		@param millisecondsToSpendMoving	how long, in milliseconds, it should take
-									to arrive at its destination
-		@param startSpeed	   a value to indicate the relative start speed of the
-									animation. If this is 0, the component will start
-									by accelerating from rest; higher values mean that it
-									will have an initial speed greater than zero. If the
-									value if greater than 1, it will decelerate towards the
-									middle of its journey. To move the component at a constant
-									rate for its entire animation, set both the start and
-									end speeds to 1.0
-		@param endSpeed		 a relative speed at which the component should be moving
-									when the animation finishes. If this is 0, the component
-									will decelerate to a standstill at its final position; higher
-									values mean the component will still be moving when it stops.
-									To move the component at a constant rate for its entire
-									animation, set both the start and end speeds to 1.0
-	*/
-	void animateComponent (Component* component,
-						   const Rectangle<int>& finalPosition,
-						   int millisecondsToSpendMoving,
-						   double startSpeed = 1.0,
-						   double endSpeed = 1.0);
-
-	/** Stops a component if it's currently being animated.
-
-		If moveComponentToItsFinalPosition is true, then the component will
-		be immediately moved to its destination position and size. If false, it will be
-		left in whatever location it currently occupies.
-	*/
-	void cancelAnimation (Component* component,
-						  bool moveComponentToItsFinalPosition);
-
-	/** Clears all of the active animations.
-
-		If moveComponentsToTheirFinalPositions is true, all the components will
-		be immediately set to their final positions. If false, they will be
-		left in whatever locations they currently occupy.
-	*/
-	void cancelAllAnimations (bool moveComponentsToTheirFinalPositions);
-
-	/** Returns the destination position for a component.
-
-		If the component is being animated, this will return the target position that
-		was specified when animateComponent() was called.
-
-		If the specified component isn't currently being animated, this method will just
-		return its current position.
-	*/
-	const Rectangle<int> getComponentDestination (Component* component);
-
-	/** Returns true if the specified component is currently being animated.
-	*/
-	bool isAnimating (Component* component) const;
-
-	juce_UseDebuggingNewOperator
-
-private:
-	class AnimationTask;
-	OwnedArray <AnimationTask> tasks;
-	uint32 lastTime;
-
-	AnimationTask* findTaskFor (Component* component) const;
-	void timerCallback();
-};
-
-#endif   // __JUCE_COMPONENTANIMATOR_JUCEHEADER__
-/*** End of inlined file: juce_ComponentAnimator.h ***/
-
 class ToolbarItemComponent;
 class ToolbarItemFactory;
 
@@ -45869,7 +45896,6 @@ private:
 	Button* missingItemsButton;
 	bool vertical, isEditingActive;
 	ToolbarItemStyle toolbarStyle;
-	ComponentAnimator animator;
 	class MissingItemsComponent;
 	friend class MissingItemsComponent;
 	Array <ToolbarItemComponent*> items;
@@ -52521,13 +52547,14 @@ public:
 
 private:
 
-	KeyPressMappingSet* mappings;
-	TreeView* tree;
 	friend class KeyMappingTreeViewItem;
 	friend class KeyCategoryTreeViewItem;
 	friend class KeyMappingItemComponent;
 	friend class KeyMappingChangeButton;
-	TextButton* resetButton;
+
+	KeyPressMappingSet* mappings;
+	TreeView tree;
+	TextButton resetButton;
 
 	void assignNewKey (CommandID commandID, int index);
 
@@ -56770,7 +56797,7 @@ public:
 	juce_UseDebuggingNewOperator
 
 private:
-	Label* textEditor;
+	ScopedPointer<Label> textEditor;
 
 	void createEditor (int maxNumChars, bool isMultiLine);
 
@@ -59117,6 +59144,9 @@ public:
 	*/
 	virtual void performAnyPendingRepaintsNow() = 0;
 
+	/** Changes the window's transparency. */
+	virtual void setAlpha (float newAlpha) = 0;
+
 	void handleMouseEvent (int touchIndex, const Point<int>& positionWithinPeer, const ModifierKeys& newMods, int64 time);
 	void handleMouseWheel (int touchIndex, const Point<int>& positionWithinPeer, int64 time, float x, float y);
 
@@ -59719,7 +59749,7 @@ public:
 					{
 						// plot the fist pixel of this segment, including any accumulated
 						// levels from smaller segments that haven't been drawn yet
-						levelAccumulator += (0xff - (x & 0xff)) * level;
+						levelAccumulator += (0x100 - (x & 0xff)) * level;
 						levelAccumulator >>= 8;
 						x >>= 8;
 
@@ -61024,7 +61054,7 @@ public:
 							const Colour& newColour);
 
 	/** @internal */
-	void applyEffect (Image& sourceImage, Graphics& destContext);
+	void applyEffect (Image& sourceImage, Graphics& destContext, float alpha);
 
 	juce_UseDebuggingNewOperator
 
@@ -61040,54 +61070,6 @@ private:
 #endif
 #ifndef __JUCE_IMAGEEFFECTFILTER_JUCEHEADER__
 
-#endif
-#ifndef __JUCE_REDUCEOPACITYEFFECT_JUCEHEADER__
-
-/*** Start of inlined file: juce_ReduceOpacityEffect.h ***/
-#ifndef __JUCE_REDUCEOPACITYEFFECT_JUCEHEADER__
-#define __JUCE_REDUCEOPACITYEFFECT_JUCEHEADER__
-
-/**
-	An effect filter that reduces the image's opacity.
-
-	This can be used to make a component (and its child components) more
-	transparent.
-
-	@see Component::setComponentEffect
-*/
-class JUCE_API  ReduceOpacityEffect  : public ImageEffectFilter
-{
-public:
-
-	/** Creates the effect object.
-
-		The opacity of the component to which the effect is applied will be
-		scaled by the given factor (in the range 0 to 1.0f).
-	*/
-	ReduceOpacityEffect (float opacity = 1.0f);
-
-	/** Destructor. */
-	~ReduceOpacityEffect();
-
-	/** Sets how much to scale the component's opacity.
-
-		@param newOpacity   should be between 0 and 1.0f
-	*/
-	void setOpacity (float newOpacity);
-
-	/** @internal */
-	void applyEffect (Image& sourceImage, Graphics& destContext);
-
-	juce_UseDebuggingNewOperator
-
-private:
-	float opacity;
-};
-
-#endif   // __JUCE_REDUCEOPACITYEFFECT_JUCEHEADER__
-/*** End of inlined file: juce_ReduceOpacityEffect.h ***/
-
-
 #endif
 #ifndef __JUCE_FONT_JUCEHEADER__
 

src/audio/processors/juce_GenericAudioProcessorEditor.cpp

@@ -35,15 +35,17 @@ BEGIN_JUCE_NAMESPACE
 //==============================================================================
 class ProcessorParameterPropertyComp   : public PropertyComponent,
                                          public AudioProcessorListener,
-                                         public AsyncUpdater
+                                         public Timer
 {
 public:
-    ProcessorParameterPropertyComp (const String& name, AudioProcessor& owner_, int index_)
+    ProcessorParameterPropertyComp (const String& name, AudioProcessor& owner_, const int index_)
         : PropertyComponent (name),
           owner (owner_),
           index (index_),
+          paramHasChanged (false),
           slider (owner_, index_)
     {
+        startTimer (100);
         addAndMakeVisible (&slider);
         owner_.addListener (this);
     }
@@ -55,6 +57,7 @@ public:
 
     void refresh()
     {
+        paramHasChanged = false;
         slider.setValue (owner.getParameter (index), false);
     }
 
@@ -63,12 +66,20 @@ public:
     void audioProcessorParameterChanged (AudioProcessor*, int parameterIndex, float)
     {
         if (parameterIndex == index)
-            triggerAsyncUpdate();
+            paramHasChanged = true;
     }
 
-    void handleAsyncUpdate()
+    void timerCallback()
     {
-        refresh();
+        if (paramHasChanged)
+        {
+            refresh();
+            startTimer (1000 / 50);
+        }
+        else
+        {
+            startTimer (jmin (1000 / 4, getTimerInterval() + 10));
+        }
     }
 
     //==============================================================================
@@ -80,8 +91,7 @@ private:
     {
     public:
         ParamSlider (AudioProcessor& owner_, const int index_)
-            : Slider (String::empty),
-              owner (owner_),
+            : owner (owner_),
               index (index_)
         {
             setRange (0.0, 1.0, 0.0);
@@ -90,10 +100,6 @@ private:
             setScrollWheelEnabled (false);
         }
 
-        ~ParamSlider()
-        {
-        }
-
         void valueChanged()
         {
             const float newVal = (float) getValue();
@@ -120,6 +126,7 @@ private:
 
     AudioProcessor& owner;
     const int index;
+    bool volatile paramHasChanged;
     ParamSlider slider;
 
     ProcessorParameterPropertyComp (const ProcessorParameterPropertyComp&);
@@ -134,7 +141,7 @@ GenericAudioProcessorEditor::GenericAudioProcessorEditor (AudioProcessor* const
     jassert (owner_ != 0);
     setOpaque (true);
 
-    addAndMakeVisible (panel = new PropertyPanel());
+    addAndMakeVisible (&panel);
 
     Array <PropertyComponent*> params;
 
@@ -152,14 +159,13 @@ GenericAudioProcessorEditor::GenericAudioProcessorEditor (AudioProcessor* const
         totalHeight += pc->getPreferredHeight();
     }
 
-    panel->addProperties (params);
+    panel.addProperties (params);
 
     setSize (400, jlimit (25, 400, totalHeight));
 }
 
 GenericAudioProcessorEditor::~GenericAudioProcessorEditor()
 {
-    deleteAllChildren();
 }
 
 void GenericAudioProcessorEditor::paint (Graphics& g)
@@ -169,7 +175,7 @@ void GenericAudioProcessorEditor::paint (Graphics& g)
 
 void GenericAudioProcessorEditor::resized()
 {
-    panel->setSize (getWidth(), getHeight());
+    panel.setBounds (getLocalBounds());
 }
 
 

src/audio/processors/juce_GenericAudioProcessorEditor.h

@@ -56,7 +56,7 @@ public:
     juce_UseDebuggingNewOperator
 
 private:
-    PropertyPanel* panel;
+    PropertyPanel panel;
 
     GenericAudioProcessorEditor (const GenericAudioProcessorEditor&);
     GenericAudioProcessorEditor& operator= (const GenericAudioProcessorEditor&);

src/core/juce_StandardHeader.h

@@ -33,7 +33,7 @@
 */
 #define JUCE_MAJOR_VERSION      1
 #define JUCE_MINOR_VERSION      52
-#define JUCE_BUILDNUMBER        80
+#define JUCE_BUILDNUMBER        81
 
 /** Current Juce version number.
 

src/gui/components/controls/juce_ListBox.cpp

@@ -912,8 +912,8 @@ const Image ListBox::createSnapshotOfSelectedRows (int& imageX, int& imageY)
 
             Graphics g (snapshot);
             g.setOrigin (pos.getX() - imageX, pos.getY() - imageY);
-            if (g.reduceClipRegion (0, 0, rowComp->getWidth(), rowComp->getHeight()))
-                rowComp->paintEntireComponent (g);
+            if (g.reduceClipRegion (rowComp->getLocalBounds()))
+                rowComp->paintEntireComponent (g, false);
         }
     }
 

src/gui/components/controls/juce_Toolbar.cpp

@@ -281,7 +281,6 @@ Toolbar::Toolbar()
 
 Toolbar::~Toolbar()
 {
-    animator.cancelAllAnimations (true);
     deleteAllChildren();
 }
 
@@ -552,11 +551,11 @@ void Toolbar::updateAllItemPositions (const bool animate)
 
                 if (animate)
                 {
-                    animator.animateComponent (tc, newBounds, 200, 3.0, 0.0);
+                    Desktop::getInstance().getAnimator().animateComponent (tc, newBounds, 1.0f, 200, false, 3.0, 0.0);
                 }
                 else
                 {
-                    animator.cancelAnimation (tc, false);
+                    Desktop::getInstance().getAnimator().cancelAnimation (tc, false);
                     tc->setBounds (newBounds);
                 }
 
@@ -644,12 +643,13 @@ void Toolbar::itemDragMove (const String&, Component* sourceComponent, int x, in
                 const int dragObjectLeft = vertical ? (y - tc->dragOffsetY) : (x - tc->dragOffsetX);
                 const int dragObjectRight = dragObjectLeft + (vertical ? tc->getHeight() : tc->getWidth());
 
-                const Rectangle<int> current (animator.getComponentDestination (getChildComponent (newIndex)));
+                const Rectangle<int> current (Desktop::getInstance().getAnimator()
+                                                .getComponentDestination (getChildComponent (newIndex)));
                 ToolbarItemComponent* const prev = getNextActiveComponent (newIndex, -1);
 
                 if (prev != 0)
                 {
-                    const Rectangle<int> previousPos (animator.getComponentDestination (prev));
+                    const Rectangle<int> previousPos (Desktop::getInstance().getAnimator().getComponentDestination (prev));
 
                     if (abs (dragObjectLeft - (vertical ? previousPos.getY() : previousPos.getX())
                           < abs (dragObjectRight - (vertical ? current.getBottom() : current.getRight()))))
@@ -661,7 +661,7 @@ void Toolbar::itemDragMove (const String&, Component* sourceComponent, int x, in
                 ToolbarItemComponent* const next = getNextActiveComponent (newIndex, 1);
                 if (next != 0)
                 {
-                    const Rectangle<int> nextPos (animator.getComponentDestination (next));
+                    const Rectangle<int> nextPos (Desktop::getInstance().getAnimator().getComponentDestination (next));
 
                     if (abs (dragObjectLeft - (vertical ? current.getY() : current.getX())
                          > abs (dragObjectRight - (vertical ? nextPos.getBottom() : nextPos.getRight()))))

src/gui/components/controls/juce_Toolbar.h

@@ -297,7 +297,6 @@ private:
     Button* missingItemsButton;
     bool vertical, isEditingActive;
     ToolbarItemStyle toolbarStyle;
-    ComponentAnimator animator;
     class MissingItemsComponent;
     friend class MissingItemsComponent;
     Array <ToolbarItemComponent*> items;

src/gui/components/controls/juce_ToolbarItemComponent.cpp

@@ -215,8 +215,8 @@ void ToolbarItemComponent::paintButton (Graphics& g, const bool over, const bool
     if (! contentArea.isEmpty())
     {
         g.saveState();
+        g.reduceClipRegion (contentArea);
         g.setOrigin (contentArea.getX(), contentArea.getY());
-        g.reduceClipRegion (0, 0, contentArea.getWidth(), contentArea.getHeight());
 
         paintButtonArea (g, contentArea.getWidth(), contentArea.getHeight(), over, down);
 

src/gui/components/juce_Component.cpp

@@ -66,7 +66,8 @@ Component::Component()
     bufferedImage_ (0),
     mouseListeners_ (0),
     keyListeners_ (0),
-    componentFlags_ (0)
+    componentFlags_ (0),
+    componentTransparency (0)
 {
 }
 
@@ -80,12 +81,15 @@ Component::Component (const String& name)
     bufferedImage_ (0),
     mouseListeners_ (0),
     keyListeners_ (0),
-    componentFlags_ (0)
+    componentFlags_ (0),
+    componentTransparency (0)
 {
 }
 
 Component::~Component()
 {
+    static_jassert (sizeof (flags) <= sizeof (componentFlags_));
+
     componentListeners.call (&ComponentListener::componentBeingDeleted, *this);
 
     if (parentComponent_ != 0)
@@ -213,117 +217,6 @@ bool Component::isShowing() const
     return false;
 }
 
-//==============================================================================
-class FadeOutProxyComponent  : public Component,
-                               public Timer
-{
-public:
-    FadeOutProxyComponent (Component* comp,
-                           const int fadeLengthMs,
-                           const int deltaXToMove,
-                           const int deltaYToMove,
-                           const float scaleFactorAtEnd)
-       : lastTime (0),
-         alpha (1.0f),
-         scale (1.0f)
-    {
-        image = comp->createComponentSnapshot (comp->getLocalBounds());
-        setBounds (comp->getBounds());
-        comp->getParentComponent()->addAndMakeVisible (this);
-        toBehind (comp);
-
-        alphaChangePerMs = -1.0f / (float)fadeLengthMs;
-
-        centreX = comp->getX() + comp->getWidth() * 0.5f;
-        xChangePerMs = deltaXToMove / (float)fadeLengthMs;
-
-        centreY = comp->getY() + comp->getHeight() * 0.5f;
-        yChangePerMs = deltaYToMove / (float)fadeLengthMs;
-
-        scaleChangePerMs = (scaleFactorAtEnd - 1.0f) / (float)fadeLengthMs;
-
-        setInterceptsMouseClicks (false, false);
-
-        // 30 fps is enough for a fade, but we need a higher rate if it's moving as well..
-        startTimer (1000 / ((deltaXToMove == 0 && deltaYToMove == 0) ? 30 : 50));
-    }
-
-    ~FadeOutProxyComponent()
-    {
-    }
-
-    void paint (Graphics& g)
-    {
-        g.setOpacity (alpha);
-
-        g.drawImage (image,
-                     0, 0, getWidth(), getHeight(),
-                     0, 0, image.getWidth(), image.getHeight());
-    }
-
-    void timerCallback()
-    {
-        const uint32 now = Time::getMillisecondCounter();
-
-        if (lastTime == 0)
-            lastTime = now;
-
-        const int msPassed = (now > lastTime) ? now - lastTime : 0;
-        lastTime = now;
-
-        alpha += alphaChangePerMs * msPassed;
-
-        if (alpha > 0)
-        {
-            if (xChangePerMs != 0.0f || yChangePerMs != 0.0f || scaleChangePerMs != 0.0f)
-            {
-                centreX += xChangePerMs * msPassed;
-                centreY += yChangePerMs * msPassed;
-                scale += scaleChangePerMs * msPassed;
-
-                const int w = roundToInt (image.getWidth() * scale);
-                const int h = roundToInt (image.getHeight() * scale);
-
-                setBounds (roundToInt (centreX) - w / 2,
-                           roundToInt (centreY) - h / 2,
-                           w, h);
-            }
-
-            repaint();
-        }
-        else
-        {
-            delete this;
-        }
-    }
-
-    juce_UseDebuggingNewOperator
-
-private:
-    Image image;
-    uint32 lastTime;
-    float alpha, alphaChangePerMs;
-    float centreX, xChangePerMs;
-    float centreY, yChangePerMs;
-    float scale, scaleChangePerMs;
-
-    FadeOutProxyComponent (const FadeOutProxyComponent&);
-    FadeOutProxyComponent& operator= (const FadeOutProxyComponent&);
-};
-
-void Component::fadeOutComponent (const int millisecondsToFade,
-                                  const int deltaXToMove,
-                                  const int deltaYToMove,
-                                  const float scaleFactorAtEnd)
-{
-    //xxx won't work for comps without parents
-    if (isShowing() && millisecondsToFade > 0)
-        new FadeOutProxyComponent (this, millisecondsToFade,
-                                   deltaXToMove, deltaYToMove, scaleFactorAtEnd);
-
-    setVisible (false);
-}
-
 
 //==============================================================================
 bool Component::isValidComponent() const
@@ -1464,6 +1357,33 @@ void Component::setRepaintsOnMouseActivity (const bool shouldRepaint) throw()
 }
 
 //==============================================================================
+void Component::setAlpha (const float newAlpha)
+{
+    const uint8 newIntAlpha = (uint8) (255 - jlimit (0, 255, roundToInt (newAlpha * 255.0)));
+
+    if (componentTransparency != newIntAlpha)
+    {
+        componentTransparency = newIntAlpha;
+
+        if (flags.hasHeavyweightPeerFlag)
+        {
+            ComponentPeer* const peer = getPeer();
+
+            if (peer != 0)
+                peer->setAlpha (newAlpha);
+        }
+        else
+        {
+            repaint();
+        }
+    }
+}
+
+float Component::getAlpha() const
+{
+    return (255 - componentTransparency) / 255.0f;
+}
+
 void Component::repaintParent()
 {
     if (flags.visibleFlag)
@@ -1557,7 +1477,7 @@ void Component::renderComponent (Graphics& g)
                 paint (imG);
             }
 
-            g.setColour (Colours::black);
+            g.setColour (Colours::black.withAlpha (getAlpha()));
             g.drawImageAt (bufferedImage_, 0, 0);
         }
         else
@@ -1576,8 +1496,7 @@ void Component::renderComponent (Graphics& g)
         {
             g.saveState();
 
-            if (g.reduceClipRegion (child->getX(), child->getY(),
-                                    child->getWidth(), child->getHeight()))
+            if (g.reduceClipRegion (child->getBounds()))
             {
                 for (int j = i + 1; j < childComponentList_.size(); ++j)
                 {
@@ -1590,7 +1509,7 @@ void Component::renderComponent (Graphics& g)
                 if (! g.isClipEmpty())
                 {
                     g.setOrigin (child->getX(), child->getY());
-                    child->paintEntireComponent (g);
+                    child->paintEntireComponent (g, false);
                 }
             }
 
@@ -1603,34 +1522,53 @@ void Component::renderComponent (Graphics& g)
     g.restoreState();
 }
 
-void Component::paintEntireComponent (Graphics& g)
+void Component::paintEntireComponent (Graphics& g, bool ignoreAlphaLevel)
 {
     jassert (! g.isClipEmpty());
 
-#if JUCE_DEBUG
+  #if JUCE_DEBUG
     flags.isInsidePaintCall = true;
-#endif
+  #endif
 
     if (effect_ != 0)
     {
         Image effectImage (flags.opaqueFlag ? Image::RGB : Image::ARGB,
-                           getWidth(), getHeight(),
-                           ! flags.opaqueFlag, Image::NativeImage);
+                           getWidth(), getHeight(), ! flags.opaqueFlag, Image::NativeImage);
         {
             Graphics g2 (effectImage);
             renderComponent (g2);
         }
 
-        effect_->applyEffect (effectImage, g);
+        effect_->applyEffect (effectImage, g, ignoreAlphaLevel ? 1.0f : getAlpha());
     }
     else
     {
-        renderComponent (g);
+        if (componentTransparency > 0 && ! ignoreAlphaLevel)
+        {
+            if (componentTransparency < 255)
+            {
+                Image temp (flags.opaqueFlag ? Image::RGB : Image::ARGB,
+                            getWidth(), getHeight(), ! flags.opaqueFlag, Image::NativeImage);
+
+                {
+                    Graphics tempG (temp);
+                    tempG.reduceClipRegion (g.getClipBounds());
+                    paintEntireComponent (tempG, true);
+                }
+
+                g.setColour (Colours::black.withAlpha (getAlpha()));
+                g.drawImageAt (temp, 0, 0);
+            }
+        }
+        else
+        {
+            renderComponent (g);
+        }
     }
 
-#if JUCE_DEBUG
+  #if JUCE_DEBUG
     flags.isInsidePaintCall = false;
-#endif
+  #endif
 }
 
 //==============================================================================
@@ -1649,7 +1587,7 @@ const Image Component::createComponentSnapshot (const Rectangle<int>& areaToGrab
 
     Graphics imageContext (componentImage);
     imageContext.setOrigin (-r.getX(), -r.getY());
-    paintEntireComponent (imageContext);
+    paintEntireComponent (imageContext, true);
 
     return componentImage;
 }

src/gui/components/juce_Component.h

@@ -161,31 +161,6 @@ public:
     */
     bool isShowing() const;
 
-    /** Makes a component invisible using a groovy fade-out and animated zoom effect.
-
-        To do this, this function will cunningly:
-            - take a snapshot of the component as it currently looks
-            - call setVisible(false) on the component
-            - replace it with a special component that will continue drawing the
-              snapshot, animating it and gradually making it more transparent
-            - when it's gone, the special component will also be deleted
-
-        As soon as this method returns, the component can be safely removed and deleted
-        leaving the proxy to do the fade-out, so it's even ok to call this in a
-        component's destructor.
-
-        Passing non-zero x and y values will cause the ghostly component image to
-        also whizz off by this distance while fading out. If the scale factor is
-        not 1.0, it will also zoom from the component's current size to this new size.
-
-        One thing to be careful about is that the parent component must be able to cope
-        with this unknown component type being added to it.
-    */
-    void fadeOutComponent (int lengthOfFadeOutInMilliseconds,
-                           int deltaXToMove = 0,
-                           int deltaYToMove = 0,
-                           float scaleFactorAtEnd = 1.0f);
-
     //==============================================================================
     /** Makes this component appear as a window on the desktop.
 
@@ -905,8 +880,12 @@ public:
 
         The graphics context may be left in an undefined state after this method returns,
         so you may need to reset it if you're going to use it again.
+
+        If ignoreAlphaLevel is false, then the component will be drawn with the opacity level
+        specified by getAlpha(); if ignoreAlphaLevel is true, then this will be ignored and
+        an alpha of 1.0 will be used.
     */
-    void paintEntireComponent (Graphics& context);
+    void paintEntireComponent (Graphics& context, bool ignoreAlphaLevel);
 
 
     //==============================================================================
@@ -1219,6 +1198,9 @@ public:
     */
     virtual void enablementChanged();
 
+    void setAlpha (float newAlpha);
+    float getAlpha() const;
+
     //==============================================================================
     /** Changes the mouse cursor shape to use when the mouse is over this component.
 
@@ -2081,6 +2063,8 @@ private:
         ComponentFlags flags;
     };
 
+    uint8 componentTransparency;
+
     //==============================================================================
     void internalMouseEnter (MouseInputSource& source, const Point<int>& relativePos, const Time& time);
     void internalMouseExit  (MouseInputSource& source, const Point<int>& relativePos, const Time& time);
@@ -2097,7 +2081,7 @@ private:
     void internalModifierKeysChanged();
     void internalChildrenChanged();
     void internalHierarchyChanged();
-    void renderComponent (Graphics& context);
+    void renderComponent (Graphics& g);
     void sendMovedResizedMessages (bool wasMoved, bool wasResized);
     void repaintParent();
     void sendFakeMouseMove() const;

src/gui/components/juce_Desktop.h

@@ -33,6 +33,7 @@
 #include "../../events/juce_AsyncUpdater.h"
 #include "../../containers/juce_OwnedArray.h"
 #include "../graphics/geometry/juce_RectangleList.h"
+#include "layout/juce_ComponentAnimator.h"
 class MouseInputSource;
 class MouseInputSourceInternal;
 class MouseListener;
@@ -225,6 +226,16 @@ public:
     */
     Component* findComponentAt (const Point<int>& screenPosition) const;
 
+    /** The Desktop object has a ComponentAnimator instance which can be used for performing
+        your animations.
+
+        Having a single shared ComponentAnimator object makes it more efficient when multiple
+        components are being moved around simultaneously. It's also more convenient than having
+        to manage your own instance of one.
+
+        @see ComponentAnimator
+    */
+    ComponentAnimator& getAnimator() throw()                        { return animator; }
 
     //==============================================================================
     /** Returns the number of MouseInputSource objects the system has at its disposal.
@@ -334,6 +345,8 @@ private:
 
     int allowedOrientations;
 
+    ComponentAnimator animator;
+
     void timerCallback();
     void resetTimer();
 

src/gui/components/keyboard/juce_KeyMappingEditorComponent.cpp

@@ -294,7 +294,8 @@ private:
 //==============================================================================
 KeyMappingEditorComponent::KeyMappingEditorComponent (KeyPressMappingSet* const mappingManager,
                                                       const bool showResetToDefaultButton)
-    : mappings (mappingManager)
+    : mappings (mappingManager),
+      resetButton (TRANS ("reset to defaults"))
 {
     jassert (mappingManager != 0); // can't be null!
 
@@ -302,25 +303,22 @@ KeyMappingEditorComponent::KeyMappingEditorComponent (KeyPressMappingSet* const
 
     setLinesDrawnForSubItems (false);
 
-    resetButton = 0;
-
     if (showResetToDefaultButton)
     {
-        addAndMakeVisible (resetButton = new TextButton (TRANS("reset to defaults")));
-        resetButton->addButtonListener (this);
+        addAndMakeVisible (&resetButton);
+        resetButton.addButtonListener (this);
     }
 
-    addAndMakeVisible (tree = new TreeView());
-    tree->setColour (TreeView::backgroundColourId, findColour (backgroundColourId));
-    tree->setRootItemVisible (false);
-    tree->setDefaultOpenness (true);
-    tree->setRootItem (this);
+    addAndMakeVisible (&tree);
+    tree.setColour (TreeView::backgroundColourId, findColour (backgroundColourId));
+    tree.setRootItemVisible (false);
+    tree.setDefaultOpenness (true);
+    tree.setRootItem (this);
 }
 
 KeyMappingEditorComponent::~KeyMappingEditorComponent()
 {
     mappings->removeChangeListener (this);
-    deleteAllChildren();
 }
 
 //==============================================================================
@@ -339,7 +337,7 @@ void KeyMappingEditorComponent::setColours (const Colour& mainBackground,
 {
     setColour (backgroundColourId, mainBackground);
     setColour (textColourId, textColour);
-    tree->setColour (TreeView::backgroundColourId, mainBackground);
+    tree.setColour (TreeView::backgroundColourId, mainBackground);
 }
 
 void KeyMappingEditorComponent::parentHierarchyChanged()
@@ -351,22 +349,22 @@ void KeyMappingEditorComponent::resized()
 {
     int h = getHeight();
 
-    if (resetButton != 0)
+    if (resetButton.isVisible())
     {
         const int buttonHeight = 20;
         h -= buttonHeight + 8;
         int x = getWidth() - 8;
 
-        resetButton->changeWidthToFitText (buttonHeight);
-        resetButton->setTopRightPosition (x, h + 6);
+        resetButton.changeWidthToFitText (buttonHeight);
+        resetButton.setTopRightPosition (x, h + 6);
     }
 
-    tree->setBounds (0, 0, getWidth(), h);
+    tree.setBounds (0, 0, getWidth(), h);
 }
 
 void KeyMappingEditorComponent::buttonClicked (Button* button)
 {
-    if (button == resetButton)
+    if (button == &resetButton)
     {
         if (AlertWindow::showOkCancelBox (AlertWindow::QuestionIcon,
                                           TRANS("Reset to defaults"),
@@ -380,7 +378,7 @@ void KeyMappingEditorComponent::buttonClicked (Button* button)
 
 void KeyMappingEditorComponent::changeListenerCallback (void*)
 {
-    ScopedPointer <XmlElement> oldOpenness (tree->getOpennessState (true));
+    ScopedPointer <XmlElement> oldOpenness (tree.getOpennessState (true));
 
     clearSubItems();
 
@@ -400,7 +398,7 @@ void KeyMappingEditorComponent::changeListenerCallback (void*)
     }
 
     if (oldOpenness != 0)
-        tree->restoreOpennessState (*oldOpenness);
+        tree.restoreOpennessState (*oldOpenness);
 }
 
 //==============================================================================

src/gui/components/keyboard/juce_KeyMappingEditorComponent.h

@@ -133,13 +133,14 @@ public:
 
 private:
     //==============================================================================
-    KeyPressMappingSet* mappings;
-    TreeView* tree;
     friend class KeyMappingTreeViewItem;
     friend class KeyCategoryTreeViewItem;
     friend class KeyMappingItemComponent;
     friend class KeyMappingChangeButton;
-    TextButton* resetButton;
+
+    KeyPressMappingSet* mappings;
+    TreeView tree;
+    TextButton resetButton;
 
     void assignNewKey (CommandID commandID, int index);
 

src/gui/components/layout/juce_ComponentAnimator.cpp

@@ -27,6 +27,7 @@
 
 BEGIN_JUCE_NAMESPACE
 
+#include "../windows/juce_ComponentPeer.h"
 #include "juce_ComponentAnimator.h"
 #include "../../../core/juce_Time.h"
 
@@ -40,59 +41,159 @@ public:
     {
     }
 
-    bool useTimeslice (const int elapsed)
+    void reset (const Rectangle<int>& finalBounds,
+                float finalAlpha,
+                int millisecondsToSpendMoving,
+                bool useProxyComponent,
+                double startSpeed_, double endSpeed_)
     {
-        if (component == 0)
-            return false;
+        msElapsed = 0;
+        msTotal = jmax (1, millisecondsToSpendMoving);
+        lastProgress = 0;
+        destination = finalBounds;
+        destAlpha = finalAlpha;
+
+        isMoving = (finalBounds != component->getBounds());
+        isChangingAlpha = (finalAlpha != component->getAlpha());
+
+        left = component->getX();
+        top = component->getY();
+        right = component->getRight();
+        bottom = component->getBottom();
+        alpha = component->getAlpha();
+
+        const double invTotalDistance = 4.0 / (startSpeed_ + endSpeed_ + 2.0);
+        startSpeed = jmax (0.0, startSpeed_ * invTotalDistance);
+        midSpeed = invTotalDistance;
+        endSpeed = jmax (0.0, endSpeed_ * invTotalDistance);
+
+        if (useProxyComponent)
+            proxy = new ProxyComponent (*component);
+        else
+            proxy = 0;
+
+        component->setVisible (! useProxyComponent);
+    }
 
-        msElapsed += elapsed;
-        double newProgress = msElapsed / (double) msTotal;
+    bool useTimeslice (const int elapsed)
+    {
+        Component* const c = proxy != 0 ? static_cast <Component*> (proxy)
+                                        : static_cast <Component*> (component);
 
-        if (newProgress >= 0 && newProgress < 1.0)
+        if (c != 0)
         {
-            newProgress = timeToDistance (newProgress);
-            const double delta = (newProgress - lastProgress) / (1.0 - lastProgress);
-            jassert (newProgress >= lastProgress);
-            lastProgress = newProgress;
-
-            left += (destination.getX() - left) * delta;
-            top += (destination.getY() - top) * delta;
-            right += (destination.getRight() - right) * delta;
-            bottom += (destination.getBottom() - bottom) * delta;
+            msElapsed += elapsed;
+            double newProgress = msElapsed / (double) msTotal;
 
-            if (delta < 1.0)
+            if (newProgress >= 0 && newProgress < 1.0)
             {
-                const Rectangle<int> newBounds (roundToInt (left),
-                                                roundToInt (top),
-                                                roundToInt (right - left),
-                                                roundToInt (bottom - top));
+                newProgress = timeToDistance (newProgress);
+                const double delta = (newProgress - lastProgress) / (1.0 - lastProgress);
+                jassert (newProgress >= lastProgress);
+                lastProgress = newProgress;
 
-                if (newBounds != destination)
+                if (delta < 1.0)
                 {
-                    component->setBounds (newBounds);
-                    return true;
+                    bool stillBusy = false;
+
+                    if (isMoving)
+                    {
+                        left += (destination.getX() - left) * delta;
+                        top += (destination.getY() - top) * delta;
+                        right += (destination.getRight() - right) * delta;
+                        bottom += (destination.getBottom() - bottom) * delta;
+
+                        const Rectangle<int> newBounds (roundToInt (left),
+                                                        roundToInt (top),
+                                                        roundToInt (right - left),
+                                                        roundToInt (bottom - top));
+
+                        if (newBounds != destination)
+                        {
+                            c->setBounds (newBounds);
+                            stillBusy = true;
+                        }
+                    }
+
+                    if (isChangingAlpha)
+                    {
+                        alpha += (destAlpha - alpha) * delta;
+                        c->setAlpha ((float) alpha);
+                        stillBusy = true;
+                    }
+
+                    if (stillBusy)
+                        return true;
                 }
             }
         }
 
-        component->setBounds (destination);
+        moveToFinalDestination();
         return false;
     }
 
     void moveToFinalDestination()
     {
         if (component != 0)
+        {
+            component->setAlpha ((float) destAlpha);
             component->setBounds (destination);
+        }
     }
 
+    //==============================================================================
+    class ProxyComponent  : public Component
+    {
+    public:
+        ProxyComponent (Component& component)
+            : image (component.createComponentSnapshot (component.getLocalBounds()))
+        {
+            setBounds (component.getBounds());
+            setAlpha (component.getAlpha());
+            setInterceptsMouseClicks (false, false);
+
+            Component* const parent = component.getParentComponent();
+
+            if (parent != 0)
+                parent->addAndMakeVisible (this);
+            else if (component.isOnDesktop() && component.getPeer() != 0)
+                addToDesktop (component.getPeer()->getStyleFlags());
+            else
+                jassertfalse; // seem to be trying to animate a component that's not visible..
+
+            setVisible (true);
+            toBehind (&component);
+        }
+
+        void paint (Graphics& g)
+        {
+            g.setOpacity (1.0f);
+            g.drawImage (image, 0, 0, getWidth(), getHeight(),
+                         0, 0, image.getWidth(), image.getHeight());
+        }
+
+        juce_UseDebuggingNewOperator
+
+    private:
+        Image image;
+
+        ProxyComponent (const ProxyComponent&);
+        ProxyComponent& operator= (const ProxyComponent&);
+    };
+
     Component::SafePointer<Component> component;
+    ScopedPointer<Component> proxy;
+
     Rectangle<int> destination;
+    double destAlpha;
+
     int msElapsed, msTotal;
     double startSpeed, midSpeed, endSpeed, lastProgress;
-    double left, top, right, bottom;
+    double left, top, right, bottom, alpha;
+    bool isMoving, isChangingAlpha;
 
 private:
-    inline double timeToDistance (const double time) const
+    double timeToDistance (const double time) const throw()
     {
         return (time < 0.5) ? time * (startSpeed + time * (midSpeed - startSpeed))
                             : 0.5 * (startSpeed + 0.5 * (midSpeed - startSpeed))
@@ -121,11 +222,16 @@ ComponentAnimator::AnimationTask* ComponentAnimator::findTaskFor (Component* con
 }
 
 void ComponentAnimator::animateComponent (Component* const component,
-                                          const Rectangle<int>& finalPosition,
+                                          const Rectangle<int>& finalBounds,
+                                          const float finalAlpha,
                                           const int millisecondsToSpendMoving,
+                                          const bool useProxyComponent,
                                           const double startSpeed,
                                           const double endSpeed)
 {
+    // the speeds must be 0 or greater!
+    jassert (startSpeed >= 0 && endSpeed >= 0)
+
     if (component != 0)
     {
         AnimationTask* at = findTaskFor (component);
@@ -137,23 +243,8 @@ void ComponentAnimator::animateComponent (Component* const component,
             sendChangeMessage (this);
         }
 
-        at->msElapsed = 0;
-        at->lastProgress = 0;
-        at->msTotal = jmax (1, millisecondsToSpendMoving);
-        at->destination = finalPosition;
-
-        // the speeds must be 0 or greater!
-        jassert (startSpeed >= 0 && endSpeed >= 0)
-
-        const double invTotalDistance = 4.0 / (startSpeed + endSpeed + 2.0);
-        at->startSpeed = jmax (0.0, startSpeed * invTotalDistance);
-        at->midSpeed = invTotalDistance;
-        at->endSpeed = jmax (0.0, endSpeed * invTotalDistance);
-
-        at->left = component->getX();
-        at->top = component->getY();
-        at->right = component->getRight();
-        at->bottom = component->getBottom();
+        at->reset (finalBounds, finalAlpha, millisecondsToSpendMoving,
+                   useProxyComponent, startSpeed, endSpeed);
 
         if (! isTimerRunning())
         {
@@ -163,6 +254,27 @@ void ComponentAnimator::animateComponent (Component* const component,
     }
 }
 
+void ComponentAnimator::fadeOut (Component* component, int millisecondsToTake)
+{
+    if (component != 0)
+    {
+        if (component->isShowing() && millisecondsToTake > 0)
+            animateComponent (component, component->getBounds(), 0.0f, millisecondsToTake, true, 1.0, 1.0);
+
+        component->setVisible (false);
+    }
+}
+
+void ComponentAnimator::fadeIn (Component* component, int millisecondsToTake)
+{
+    if (component != 0 && ! (component->isVisible() && component->getAlpha() == 1.0f))
+    {
+        component->setAlpha (0.0f);
+        component->setVisible (true);
+        animateComponent (component, component->getBounds(), 1.0f, millisecondsToTake, false, 1.0, 1.0);
+    }
+}
+
 void ComponentAnimator::cancelAllAnimations (const bool moveComponentsToTheirFinalPositions)
 {
     if (tasks.size() > 0)
@@ -193,14 +305,13 @@ void ComponentAnimator::cancelAnimation (Component* const component,
 
 const Rectangle<int> ComponentAnimator::getComponentDestination (Component* const component)
 {
+    jassert (component != 0);
     AnimationTask* const at = findTaskFor (component);
 
     if (at != 0)
         return at->destination;
-    else if (component != 0)
-        return component->getBounds();
 
-    return Rectangle<int>();
+    return component->getBounds();
 }
 
 bool ComponentAnimator::isAnimating (Component* component) const

src/gui/components/layout/juce_ComponentAnimator.h

@@ -33,19 +33,24 @@
 
 //==============================================================================
 /**
-    Animates a set of components, moving it to a new position.
+    Animates a set of components, moving them to a new position and/or fading their
+    alpha levels.
 
-    To use this, create a ComponentAnimator, and use its animateComponent() method
-    to tell it to move components to destination positions. Any number of
-    components can be animated by one ComponentAnimator object (if you've got a
-    lot of components to move, it's much more efficient to share a single animator
-    than to have many animators running at once).
+    To animate a component, create a ComponentAnimator instance or (preferably) use the
+    global animator object provided by Desktop::getAnimator(), and call its animateComponent()
+    method to commence the movement.
 
-    You'll need to make sure the animator object isn't deleted before it finishes
-    moving the components.
+    If you're using your own ComponentAnimator instance, you'll need to make sure it isn't
+    deleted before it finishes moving the components, or they'll be abandoned before reaching their
+    destinations.
+
+    It's ok to delete components while they're being animated - the animator will detect this
+    and safely stop using them.
 
     The class is a ChangeBroadcaster and sends a notification when any components
     start or finish being animated.
+
+    @see Desktop::getAnimator
 */
 class JUCE_API  ComponentAnimator  : public ChangeBroadcaster,
                                      private Timer
@@ -68,29 +73,49 @@ public:
         movement.
 
         @param component            the component to move
-        @param finalPosition        the destination position and size to move it to
-        @param millisecondsToSpendMoving    how long, in milliseconds, it should take
-                                    to arrive at its destination
-        @param startSpeed           a value to indicate the relative start speed of the
-                                    animation. If this is 0, the component will start
-                                    by accelerating from rest; higher values mean that it
-                                    will have an initial speed greater than zero. If the
-                                    value if greater than 1, it will decelerate towards the
-                                    middle of its journey. To move the component at a constant
-                                    rate for its entire animation, set both the start and
-                                    end speeds to 1.0
-        @param endSpeed             a relative speed at which the component should be moving
-                                    when the animation finishes. If this is 0, the component
-                                    will decelerate to a standstill at its final position; higher
-                                    values mean the component will still be moving when it stops.
-                                    To move the component at a constant rate for its entire
-                                    animation, set both the start and end speeds to 1.0
+        @param finalBounds          the destination bounds to which the component should move. To leave the
+                                    component in the same place, just pass component->getBounds() for this value
+        @param finalAlpha           the alpha value that the component should have at the end of the animation
+        @param animationDurationMilliseconds    how long the animation should last, in milliseconds
+        @param useProxyComponent    if true, this means the component should be replaced by an internally
+                                    managed temporary component which is a snapshot of the original component.
+                                    This avoids the component having to paint itself as it moves, so may
+                                    be more efficient. This option also allows you to delete the original
+                                    component immediately after starting the animation, because the animation
+                                    can proceed without it. If you use a proxy, the original component will be
+                                    made invisible by this call, and then will become visible again at the end
+                                    of the animation. It'll also mean that the proxy component will be temporarily
+                                    added to the component's parent, so avoid it if this might confuse the parent
+                                    component, or if there's a chance the parent might decide to delete its children.
+        @param startSpeed           a value to indicate the relative start speed of the animation. If this is 0,
+                                    the component will start by accelerating from rest; higher values mean that it
+                                    will have an initial speed greater than zero. If the value if greater than 1, it
+                                    will decelerate towards the middle of its journey. To move the component at a
+                                    constant rate for its entire animation, set both the start and end speeds to 1.0
+        @param endSpeed             a relative speed at which the component should be moving when the animation finishes.
+                                    If this is 0, the component will decelerate to a standstill at its final position;
+                                    higher values mean the component will still be moving when it stops. To move the component
+                                    at a constant rate for its entire animation, set both the start and end speeds to 1.0
     */
     void animateComponent (Component* component,
-                           const Rectangle<int>& finalPosition,
-                           int millisecondsToSpendMoving,
-                           double startSpeed = 1.0,
-                           double endSpeed = 1.0);
+                           const Rectangle<int>& finalBounds,
+                           float finalAlpha,
+                           int animationDurationMilliseconds,
+                           bool useProxyComponent,
+                           double startSpeed,
+                           double endSpeed);
+
+    /** Begins a fade-out of this components alpha level.
+        This is a quick way of invoking animateComponent() with a target alpha value of 0.0f, using
+        a proxy. You're safe to delete the component after calling this method, and this won't
+        interfere with the animation's progress.
+    */
+    void fadeOut (Component* component, int millisecondsToTake);
+
+    /** Begins a fade-in of a component.
+        This is a quick way of invoking animateComponent() with a target alpha value of 1.0f.
+    */
+    void fadeIn (Component* component, int millisecondsToTake);
 
     /** Stops a component if it's currently being animated.
 
@@ -119,8 +144,7 @@ public:
     */
     const Rectangle<int> getComponentDestination (Component* component);
 
-    /** Returns true if the specified component is currently being animated.
-    */
+    /** Returns true if the specified component is currently being animated. */
     bool isAnimating (Component* component) const;
 
     //==============================================================================

src/gui/components/lookandfeel/juce_LookAndFeel.cpp

@@ -2556,7 +2556,7 @@ void LookAndFeel::drawCallOutBoxBackground (CallOutBox& box, Graphics& g, const
 
     DropShadowEffect shadow;
     shadow.setShadowProperties (5.0f, 0.4f, 0, 2);
-    shadow.applyEffect (content, g);
+    shadow.applyEffect (content, g, 1.0f);
 }
 
 

src/gui/components/menus/juce_PopupMenu.cpp

@@ -415,7 +415,7 @@ public:
 
     //==============================================================================
     // hide this and all sub-comps
-    void hide (const PopupMenu::Item* const item)
+    void hide (const PopupMenu::Item* const item, const bool makeInvisible)
     {
         if (isVisible())
         {
@@ -425,7 +425,9 @@ public:
             currentChild = 0;
 
             exitModalState (item != 0 ? item->itemId : 0);
-            setVisible (false);
+
+            if (makeInvisible)
+                setVisible (false);
 
             if (item != 0
                  && item->commandManager != 0
@@ -448,11 +450,11 @@ public:
             {
                 // need a copy of this on the stack as the one passed in will get deleted during this call
                 const PopupMenu::Item mi (*item);
-                hide (&mi);
+                hide (&mi, false);
             }
             else
             {
-                hide (0);
+                hide (0, false);
             }
         }
     }
@@ -501,7 +503,7 @@ public:
                 Component::SafePointer<Window> parentWindow (owner);
                 PopupMenu::ItemComponent* currentChildOfParent = parentWindow->currentChild;
 
-                hide (0);
+                hide (0, true);
 
                 if (parentWindow != 0)
                     parentWindow->setCurrentlyHighlightedChild (currentChildOfParent);
@@ -660,7 +662,7 @@ public:
 
         if (hideOnExit && hasBeenOver && ! isOverAny)
         {
-            hide (0);
+            hide (0, true);
         }
         else
         {
@@ -1191,7 +1193,7 @@ private:
             {
                 if (isOver && (c != 0) && (activeSubMenu != 0))
                 {
-                    activeSubMenu->hide (0);
+                    activeSubMenu->hide (0, true);
                 }
 
                 if (! isOver)
@@ -1504,6 +1506,9 @@ public:
 
             managerOfChosenCommand->invoke (info, true);
         }
+
+        // (this would be the place to fade out the component, if that's what's required)
+        component = 0;
     }
 
     ApplicationCommandManager* managerOfChosenCommand;

src/gui/components/mouse/juce_DragAndDropContainer.cpp

@@ -158,19 +158,17 @@ public:
 
                 if (dropAccepted || source == 0)
                 {
-                    fadeOutComponent (120);
+                    Desktop::getInstance().getAnimator().fadeOut (this, 120);
                 }
                 else
                 {
-                    const Point<int> target (source->relativePositionToGlobal (Point<int> (source->getWidth() / 2,
-                                                                                           source->getHeight() / 2)));
+                    const Point<int> target (source->relativePositionToGlobal (source->getLocalBounds().getCentre()));
+                    const Point<int> ourCentre (relativePositionToGlobal (getLocalBounds().getCentre()));
 
-                    const Point<int> ourCentre (relativePositionToGlobal (Point<int> (getWidth() / 2,
-                                                                                      getHeight() / 2)));
-
-                    fadeOutComponent (120,
-                                      target.getX() - ourCentre.getX(),
-                                      target.getY() - ourCentre.getY());
+                    Desktop::getInstance().getAnimator().animateComponent (this,
+                                                                           getBounds() + (target - ourCentre),
+                                                                           0.0f, 120,
+                                                                           true, 1.0, 1.0);
                 }
             }
 

src/gui/components/properties/juce_TextPropertyComponent.cpp

@@ -34,10 +34,6 @@ BEGIN_JUCE_NAMESPACE
 //==============================================================================
 class TextPropLabel  : public Label
 {
-    TextPropertyComponent& owner;
-    int maxChars;
-    bool isMultiline;
-
 public:
     TextPropLabel (TextPropertyComponent& owner_,
                    const int maxChars_, const bool isMultiline_)
@@ -52,14 +48,9 @@ public:
         setColour (outlineColourId, findColour (ComboBox::outlineColourId));
     }
 
-    ~TextPropLabel()
-    {
-    }
-
     TextEditor* createEditorComponent()
     {
         TextEditor* const textEditor = Label::createEditorComponent();
-
         textEditor->setInputRestrictions (maxChars);
 
         if (isMultiline)
@@ -75,6 +66,11 @@ public:
     {
         owner.textWasEdited();
     }
+
+private:
+    TextPropertyComponent& owner;
+    int maxChars;
+    bool isMultiline;
 };
 
 //==============================================================================
@@ -99,7 +95,6 @@ TextPropertyComponent::TextPropertyComponent (const Value& valueToControl,
 
 TextPropertyComponent::~TextPropertyComponent()
 {
-    deleteAllChildren();
 }
 
 void TextPropertyComponent::setText (const String& newText)

src/gui/components/properties/juce_TextPropertyComponent.h

@@ -89,7 +89,7 @@ public:
     juce_UseDebuggingNewOperator
 
 private:
-    Label* textEditor;
+    ScopedPointer<Label> textEditor;
 
     void createEditor (int maxNumChars, bool isMultiLine);
 

src/gui/components/special/juce_BubbleComponent.cpp

@@ -117,18 +117,8 @@ void BubbleComponent::setPosition (const int arrowTipX_,
 //==============================================================================
 void BubbleComponent::setPosition (const Rectangle<int>& rectangleToPointTo)
 {
-    Rectangle<int> availableSpace;
-
-    if (getParentComponent() != 0)
-    {
-        availableSpace.setSize (getParentComponent()->getWidth(),
-                                getParentComponent()->getHeight());
-    }
-    else
-    {
-        availableSpace = getParentMonitorArea();
-    }
-
+    Rectangle<int> availableSpace (getParentComponent() != 0 ? getParentComponent()->getLocalBounds()
+                                                             : getParentMonitorArea());
     int x = 0;
     int y = 0;
     int w = 150;

src/gui/components/special/juce_BubbleMessageComponent.cpp

@@ -41,7 +41,7 @@ BubbleMessageComponent::BubbleMessageComponent (int fadeOutLengthMs)
 
 BubbleMessageComponent::~BubbleMessageComponent()
 {
-    fadeOutComponent (fadeOutLength);
+    Desktop::getInstance().getAnimator().fadeOut (this, fadeOutLength);
 }
 
 void BubbleMessageComponent::showAt (int x, int y,
@@ -123,10 +123,11 @@ void BubbleMessageComponent::timerCallback()
     else if (expiryTime != 0 && Time::getMillisecondCounter() > expiryTime)
     {
         stopTimer();
-        fadeOutComponent (fadeOutLength);
 
         if (deleteAfterUse)
             delete this;
+        else
+            Desktop::getInstance().getAnimator().fadeOut (this, fadeOutLength);
     }
 }
 

src/gui/components/special/juce_MagnifierComponent.cpp

@@ -56,6 +56,7 @@ public:
     void setSize (int, int)                         {}
     void setBounds (int, int, int, int, bool)       {}
     void setMinimised (bool)                        {}
+    void setAlpha (float /*newAlpha*/)              {}
     bool isMinimised() const                        { return false; }
     void setFullScreen (bool)                       {}
     bool isFullScreen() const                       { return false; }
@@ -266,12 +267,13 @@ void MagnifierComponent::paint (Graphics& g)
     }
 
     Image temp (Image::ARGB, jmax (w, srcX + srcW), jmax (h, srcY + srcH), false);
-    temp.clear (Rectangle<int> (srcX, srcY, srcW, srcH));
+    const Rectangle<int> area (srcX, srcY, srcW, srcH);
+    temp.clear (area);
 
     {
         Graphics g2 (temp);
-        g2.reduceClipRegion (srcX, srcY, srcW, srcH);
-        holderComp->paintEntireComponent (g2);
+        g2.reduceClipRegion (area);
+        holderComp->paintEntireComponent (g2, false);
     }
 
     g.setImageResamplingQuality (quality);

src/gui/components/windows/juce_ComponentPeer.cpp

@@ -126,7 +126,7 @@ void ComponentPeer::handlePaint (LowLevelGraphicsContext& contextToPaintTo)
 
     JUCE_TRY
     {
-        component->paintEntireComponent (g);
+        component->paintEntireComponent (g, true);
     }
     JUCE_CATCH_EXCEPTION
 

src/gui/components/windows/juce_ComponentPeer.h

@@ -291,6 +291,9 @@ public:
     */
     virtual void performAnyPendingRepaintsNow() = 0;
 
+    /** Changes the window's transparency. */
+    virtual void setAlpha (float newAlpha) = 0;
+
     //==============================================================================
     void handleMouseEvent (int touchIndex, const Point<int>& positionWithinPeer, const ModifierKeys& newMods, int64 time);
     void handleMouseWheel (int touchIndex, const Point<int>& positionWithinPeer, int64 time, float x, float y);

src/gui/components/windows/juce_DocumentWindow.cpp

@@ -204,8 +204,8 @@ void DocumentWindow::paint (Graphics& g)
     }
 
     const Rectangle<int> titleBarArea (getTitleBarArea());
+    g.reduceClipRegion (titleBarArea);
     g.setOrigin (titleBarArea.getX(), titleBarArea.getY());
-    g.reduceClipRegion (0, 0, titleBarArea.getWidth(), titleBarArea.getHeight());
 
     int titleSpaceX1 = 6;
     int titleSpaceX2 = titleBarArea.getWidth() - 6;

src/gui/graphics/contexts/juce_EdgeTable.h

@@ -148,7 +148,7 @@ public:
                     {
                         // plot the fist pixel of this segment, including any accumulated
                         // levels from smaller segments that haven't been drawn yet
-                        levelAccumulator += (0xff - (x & 0xff)) * level;
+                        levelAccumulator += (0x100 - (x & 0xff)) * level;
                         levelAccumulator >>= 8;
                         x >>= 8;
 

src/gui/graphics/contexts/juce_Graphics.cpp

@@ -86,10 +86,15 @@ bool Graphics::isVectorDevice() const
     return context->isVectorDevice();
 }
 
-bool Graphics::reduceClipRegion (const int x, const int y, const int w, const int h)
+bool Graphics::reduceClipRegion (const Rectangle<int>& area)
 {
     saveStateIfPending();
-    return context->clipToRectangle (Rectangle<int> (x, y, w, h));
+    return context->clipToRectangle (area);
+}
+
+bool Graphics::reduceClipRegion (const int x, const int y, const int w, const int h)
+{
+    return reduceClipRegion (Rectangle<int> (x, y, w, h));
 }
 
 bool Graphics::reduceClipRegion (const RectangleList& clipRegion)

src/gui/graphics/contexts/juce_Graphics.h

@@ -563,6 +563,13 @@ public:
     */
     bool reduceClipRegion (int x, int y, int width, int height);
 
+    /** Intersects the current clipping region with another region.
+
+        @returns true if the resulting clipping region is non-zero in size
+        @see setOrigin, clipRegionIntersects
+    */
+    bool reduceClipRegion (const Rectangle<int>& area);
+
     /** Intersects the current clipping region with a rectangle list region.
 
         @returns true if the resulting clipping region is non-zero in size

src/gui/graphics/contexts/juce_LowLevelGraphicsSoftwareRenderer.cpp

@@ -1907,9 +1907,8 @@ public:
 
                 ColourGradient g2 (*(fillType.gradient));
                 g2.multiplyOpacity (fillType.getOpacity());
-                g2.point1.addXY (-0.5f, -0.5f);
-                g2.point2.addXY (-0.5f, -0.5f);
-                AffineTransform transform (fillType.transform.translated ((float) xOffset, (float) yOffset));
+                AffineTransform transform (fillType.transform.translated (xOffset - 0.5f, yOffset - 0.5f));
+
                 const bool isIdentity = transform.isOnlyTranslation();
 
                 if (isIdentity)

src/gui/graphics/drawables/juce_DrawableComposite.cpp

@@ -687,6 +687,8 @@ const Rectangle<float> DrawableComposite::refreshFromValueTree (const ValueTree&
         }
     }
 
+    invalidatePoints();
+
     if (redrawAll)
         damage = damage.getUnion (getBounds());
     else if (! damage.isEmpty())

src/gui/graphics/drawables/juce_DrawableRectangle.cpp

@@ -73,8 +73,8 @@ bool DrawableRectangle::rebuildPath (Path& path) const
     const float w = Line<float> (points[0], points[1]).getLength();
     const float h = Line<float> (points[0], points[2]).getLength();
 
-    const float cornerSizeX = cornerSize.x.resolve (parent);
-    const float cornerSizeY = cornerSize.y.resolve (parent);
+    const float cornerSizeX = (float) cornerSize.x.resolve (parent);
+    const float cornerSizeY = (float) cornerSize.y.resolve (parent);
 
     path.clear();
 

src/gui/graphics/drawables/juce_DrawableShape.cpp

@@ -93,7 +93,7 @@ void DrawableShape::setBrush (const Drawable::RenderingContext& context, const F
 }
 
 bool DrawableShape::refreshFillTypes (const FillAndStrokeState& newState,
-                                      Expression::EvaluationContext* nameFinder,
+                                      Expression::EvaluationContext* /*nameFinder*/,
                                       ImageProvider* imageProvider)
 {
     bool hasChanged = false;

src/gui/graphics/effects/juce_DropShadowEffect.cpp

@@ -59,7 +59,7 @@ void DropShadowEffect::setShadowProperties (const float newRadius,
     opacity = newOpacity;
 }
 
-void DropShadowEffect::applyEffect (Image& image, Graphics& g)
+void DropShadowEffect::applyEffect (Image& image, Graphics& g, float alpha)
 {
     const int w = image.getWidth();
     const int h = image.getHeight();
@@ -101,10 +101,10 @@ void DropShadowEffect::applyEffect (Image& image, Graphics& g)
         }
     }
 
-    g.setColour (Colours::black.withAlpha (opacity));
+    g.setColour (Colours::black.withAlpha (opacity * alpha));
     g.drawImageAt (shadowImage, offsetX, offsetY, true);
 
-    g.setOpacity (1.0f);
+    g.setOpacity (alpha);
     g.drawImageAt (image, 0, 0);
 }
 

src/gui/graphics/effects/juce_DropShadowEffect.h

@@ -77,7 +77,7 @@ public:
 
     //==============================================================================
     /** @internal */
-    void applyEffect (Image& sourceImage, Graphics& destContext);
+    void applyEffect (Image& sourceImage, Graphics& destContext, float alpha);
 
     //==============================================================================
     juce_UseDebuggingNewOperator

src/gui/graphics/effects/juce_GlowEffect.cpp

@@ -49,7 +49,7 @@ void GlowEffect::setGlowProperties (const float newRadius,
     colour = newColour;
 }
 
-void GlowEffect::applyEffect (Image& image, Graphics& g)
+void GlowEffect::applyEffect (Image& image, Graphics& g, float alpha)
 {
     Image temp (image.getFormat(), image.getWidth(), image.getHeight(), true);
 
@@ -60,10 +60,10 @@ void GlowEffect::applyEffect (Image& image, Graphics& g)
 
     blurKernel.applyToImage (temp, image, image.getBounds());
 
-    g.setColour (colour);
+    g.setColour (colour.withMultipliedAlpha (alpha));
     g.drawImageAt (temp, 0, 0, true);
 
-    g.setOpacity (1.0f);
+    g.setOpacity (alpha);
     g.drawImageAt (image, 0, 0, false);
 }
 

src/gui/graphics/effects/juce_GlowEffect.h

@@ -63,7 +63,7 @@ public:
 
     //==============================================================================
     /** @internal */
-    void applyEffect (Image& sourceImage, Graphics& destContext);
+    void applyEffect (Image& sourceImage, Graphics& destContext, float alpha);
 
     //==============================================================================
     juce_UseDebuggingNewOperator

src/gui/graphics/effects/juce_ImageEffectFilter.h

@@ -53,9 +53,12 @@ public:
                                 its paint() method. The image may or may not have an alpha
                                 channel, depending on whether the component is opaque.
         @param destContext      the graphics context to use to draw the resultant image.
+        @param alpha            the alpha with which to draw the resultant image to the
+                                target context
     */
     virtual void applyEffect (Image& sourceImage,
-                              Graphics& destContext) = 0;
+                              Graphics& destContext,
+                              float alpha) = 0;
 
     /** Destructor. */
     virtual ~ImageEffectFilter() {}

src/gui/graphics/effects/juce_ReduceOpacityEffect.cpp

@@ -1,54 +0,0 @@
-/*
-  ==============================================================================
-
-   This file is part of the JUCE library - "Jules' Utility Class Extensions"
-   Copyright 2004-10 by Raw Material Software Ltd.
-
-  ------------------------------------------------------------------------------
-
-   JUCE can be redistributed and/or modified under the terms of the GNU General
-   Public License (Version 2), as published by the Free Software Foundation.
-   A copy of the license is included in the JUCE distribution, or can be found
-   online at www.gnu.org/licenses.
-
-   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
-   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  ------------------------------------------------------------------------------
-
-   To release a closed-source product which uses JUCE, commercial licenses are
-   available: visit www.rawmaterialsoftware.com/juce for more information.
-
-  ==============================================================================
-*/
-
-#include "../../../core/juce_StandardHeader.h"
-
-BEGIN_JUCE_NAMESPACE
-
-#include "juce_ReduceOpacityEffect.h"
-
-
-//==============================================================================
-ReduceOpacityEffect::ReduceOpacityEffect (const float opacity_)
-    : opacity (opacity_)
-{
-}
-
-ReduceOpacityEffect::~ReduceOpacityEffect()
-{
-}
-
-void ReduceOpacityEffect::setOpacity (const float newOpacity)
-{
-    opacity = jlimit (0.0f, 1.0f, newOpacity);
-}
-
-void ReduceOpacityEffect::applyEffect (Image& image, Graphics& g)
-{
-    g.setOpacity (opacity);
-    g.drawImageAt (image, 0, 0);
-}
-
-END_JUCE_NAMESPACE

src/gui/graphics/effects/juce_ReduceOpacityEffect.h

@@ -1,74 +0,0 @@
-/*
-  ==============================================================================
-
-   This file is part of the JUCE library - "Jules' Utility Class Extensions"
-   Copyright 2004-10 by Raw Material Software Ltd.
-
-  ------------------------------------------------------------------------------
-
-   JUCE can be redistributed and/or modified under the terms of the GNU General
-   Public License (Version 2), as published by the Free Software Foundation.
-   A copy of the license is included in the JUCE distribution, or can be found
-   online at www.gnu.org/licenses.
-
-   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
-   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
-   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
-
-  ------------------------------------------------------------------------------
-
-   To release a closed-source product which uses JUCE, commercial licenses are
-   available: visit www.rawmaterialsoftware.com/juce for more information.
-
-  ==============================================================================
-*/
-
-#ifndef __JUCE_REDUCEOPACITYEFFECT_JUCEHEADER__
-#define __JUCE_REDUCEOPACITYEFFECT_JUCEHEADER__
-
-#include "juce_ImageEffectFilter.h"
-
-
-//==============================================================================
-/**
-    An effect filter that reduces the image's opacity.
-
-    This can be used to make a component (and its child components) more
-    transparent.
-
-    @see Component::setComponentEffect
-*/
-class JUCE_API  ReduceOpacityEffect  : public ImageEffectFilter
-{
-public:
-    //==============================================================================
-    /** Creates the effect object.
-
-        The opacity of the component to which the effect is applied will be
-        scaled by the given factor (in the range 0 to 1.0f).
-    */
-    ReduceOpacityEffect (float opacity = 1.0f);
-
-    /** Destructor. */
-    ~ReduceOpacityEffect();
-
-    /** Sets how much to scale the component's opacity.
-
-        @param newOpacity   should be between 0 and 1.0f
-    */
-    void setOpacity (float newOpacity);
-
-
-    //==============================================================================
-    /** @internal */
-    void applyEffect (Image& sourceImage, Graphics& destContext);
-
-    //==============================================================================
-    juce_UseDebuggingNewOperator
-
-private:
-    float opacity;
-};
-
-
-#endif   // __JUCE_REDUCEOPACITYEFFECT_JUCEHEADER__

src/gui/graphics/geometry/juce_RelativeCoordinate.h

@@ -56,12 +56,8 @@ public:
     RelativeCoordinate (double absoluteDistanceFromOrigin);
 
     /** Recreates a coordinate from a string description.
-
         The string will be parsed by ExpressionParser::parse().
-
         @param stringVersion    the expression to use
-        @param isHorizontal     this must be true if this is an X coordinate, or false if it's on the Y axis.
-
         @see toString
     */
     RelativeCoordinate (const String& stringVersion);

src/juce_app_includes.h

@@ -677,9 +677,6 @@
 #ifndef __JUCE_IMAGEEFFECTFILTER_JUCEHEADER__
  #include "gui/graphics/effects/juce_ImageEffectFilter.h"
 #endif
-#ifndef __JUCE_REDUCEOPACITYEFFECT_JUCEHEADER__
- #include "gui/graphics/effects/juce_ReduceOpacityEffect.h"
-#endif
 #ifndef __JUCE_FONT_JUCEHEADER__
  #include "gui/graphics/fonts/juce_Font.h"
 #endif

src/native/linux/juce_linux_Windowing.cpp

@@ -820,6 +820,11 @@ public:
         return screenPosition - getScreenPosition();
     }
 
+    void setAlpha (float newAlpha)
+    {
+        //xxx todo!
+    }
+
     void setMinimised (bool shouldBeMinimised)
     {
         if (shouldBeMinimised)

src/native/mac/juce_iphone_UIViewComponentPeer.mm

@@ -111,6 +111,7 @@ public:
     const Point<int> getScreenPosition() const;
     const Point<int> relativePositionToGlobal (const Point<int>& relativePosition);
     const Point<int> globalPositionToRelative (const Point<int>& screenPosition);
+    void setAlpha (float newAlpha);
     void setMinimised (bool shouldBeMinimised);
     bool isMinimised() const;
     void setFullScreen (bool shouldBeFullScreen);
@@ -576,6 +577,11 @@ CGRect UIViewComponentPeer::constrainRect (CGRect r)
     return r;
 }
 
+void UIViewComponentPeer::setAlpha (float newAlpha)
+{
+    [[view window] setAlpha: (CGFloat) newAlpha];
+}
+
 void UIViewComponentPeer::setMinimised (bool shouldBeMinimised)
 {
 }

src/native/mac/juce_mac_NSViewComponentPeer.mm

@@ -160,6 +160,7 @@ public:
     const Point<int> getScreenPosition() const;
     const Point<int> relativePositionToGlobal (const Point<int>& relativePosition);
     const Point<int> globalPositionToRelative (const Point<int>& screenPosition);
+    void setAlpha (float newAlpha);
     void setMinimised (bool shouldBeMinimised);
     bool isMinimised() const;
     void setFullScreen (bool shouldBeFullScreen);
@@ -880,8 +881,6 @@ NSViewComponentPeer::NSViewComponentPeer (Component* const component_,
     {
         window = [viewToAttachTo window];
         [viewToAttachTo addSubview: view];
-
-        setVisible (component->isVisible());
     }
     else
     {
@@ -931,6 +930,10 @@ NSViewComponentPeer::NSViewComponentPeer (Component* const component_,
         [window setIgnoresMouseEvents: (windowStyleFlags & windowIgnoresMouseClicks) != 0];
     }
 
+    const float alpha = component->getAlpha();
+    if (alpha < 1.0f)
+        setAlpha (alpha);
+
     setTitle (component->getName());
 }
 
@@ -1094,6 +1097,14 @@ NSRect NSViewComponentPeer::constrainRect (NSRect r)
     return r;
 }
 
+void NSViewComponentPeer::setAlpha (float newAlpha)
+{
+    if (! isSharedWindow)
+        [window setAlphaValue: (CGFloat) newAlpha];
+    else
+        [view setAlphaValue: (CGFloat) newAlpha];
+}
+
 void NSViewComponentPeer::setMinimised (bool shouldBeMinimised)
 {
     if (! isSharedWindow)

src/native/windows/juce_win32_Windowing.cpp

@@ -231,7 +231,8 @@ public:
 
     void blitToWindow (HWND hwnd, HDC dc, const bool transparent,
                        const int x, const int y,
-                       const RectangleList& maskedRegion) throw()
+                       const RectangleList& maskedRegion,
+                       const uint8 updateLayeredWindowAlpha) throw()
     {
         static HDRAWDIB hdd = 0;
         static bool needToCreateDrawDib = true;
@@ -289,7 +290,7 @@ public:
             bf.AlphaFormat = AC_SRC_ALPHA;
             bf.BlendFlags = 0;
             bf.BlendOp = AC_SRC_OVER;
-            bf.SourceConstantAlpha = 0xff;
+            bf.SourceConstantAlpha = updateLayeredWindowAlpha;
 
             if (! maskedRegion.isEmpty())
             {
@@ -410,6 +411,7 @@ public:
           hasCreatedCaret (false),
           currentWindowIcon (0),
           dropTarget (0),
+          updateLayeredWindowAlpha (255),
           parentToAddTo (parentToAddTo_)
     {
         callFunctionIfNotLocked (&createWindowCallback, this);
@@ -484,7 +486,7 @@ public:
 
     void repaintNowIfTransparent()
     {
-        if (isTransparent() && lastPaintTime > 0 && Time::getMillisecondCounter() > lastPaintTime + 30)
+        if (isUsingUpdateLayeredWindow() && lastPaintTime > 0 && Time::getMillisecondCounter() > lastPaintTime + 30)
             handlePaintMessage();
     }
 
@@ -571,6 +573,30 @@ public:
         return screenPosition - getScreenPosition();
     }
 
+    void setAlpha (float newAlpha)
+    {
+        const uint8 intAlpha = (uint8) jlimit (0, 255, (int) (newAlpha * 255.0f));
+
+        if (component->isOpaque())
+        {
+            if (newAlpha < 1.0f)
+            {
+                SetWindowLong (hwnd, GWL_EXSTYLE, GetWindowLong (hwnd, GWL_EXSTYLE) | WS_EX_LAYERED);
+                SetLayeredWindowAttributes (hwnd, RGB (0, 0, 0), intAlpha, LWA_ALPHA);
+            }
+            else
+            {
+                SetWindowLong (hwnd, GWL_EXSTYLE, GetWindowLong (hwnd, GWL_EXSTYLE) & ~WS_EX_LAYERED);
+                RedrawWindow (hwnd, 0, 0, RDW_ERASE | RDW_INVALIDATE | RDW_FRAME | RDW_ALLCHILDREN);
+            }
+        }
+        else
+        {
+            updateLayeredWindowAlpha = intAlpha;
+            component->repaint();
+        }
+    }
+
     void setMinimised (bool shouldBeMinimised)
     {
         if (shouldBeMinimised != isMinimised())
@@ -878,6 +904,7 @@ private:
     HICON currentWindowIcon;
     ScopedPointer<NOTIFYICONDATA> taskBarIcon;
     IDropTarget* dropTarget;
+    uint8 updateLayeredWindowAlpha;
 
     //==============================================================================
     class TemporaryImage    : public Timer
@@ -1044,6 +1071,10 @@ private:
             // Calling this function here is (for some reason) necessary to make Windows
             // correctly enable the menu items that we specify in the wm_initmenu message.
             GetSystemMenu (hwnd, false);
+
+            const float alpha = component->getAlpha();
+            if (alpha < 1.0f)
+                setAlpha (alpha);
         }
         else
         {
@@ -1083,7 +1114,7 @@ private:
 
     void offsetWithinParent (int& x, int& y) const
     {
-        if (isTransparent())
+        if (isUsingUpdateLayeredWindow())
         {
             HWND parentHwnd = GetParent (hwnd);
 
@@ -1097,9 +1128,9 @@ private:
         }
     }
 
-    bool isTransparent() const
+    bool isUsingUpdateLayeredWindow() const
     {
-        return (GetWindowLong (hwnd, GWL_EXSTYLE) & WS_EX_LAYERED) != 0;
+        return ! component->isOpaque();
     }
 
     inline bool hasTitleBar() const throw()         { return (styleFlags & windowHasTitleBar) != 0; }
@@ -1165,7 +1196,7 @@ private:
             int w = paintStruct.rcPaint.right - x;
             int h = paintStruct.rcPaint.bottom - y;
 
-            const bool transparent = isTransparent();
+            const bool transparent = isUsingUpdateLayeredWindow();
 
             if (transparent)
             {
@@ -1256,7 +1287,7 @@ private:
 
                 if (! dontRepaint)
                     static_cast <WindowsBitmapImage*> (offscreenImage.getSharedImage())
-                        ->blitToWindow (hwnd, dc, transparent, x, y, maskedRegion);
+                        ->blitToWindow (hwnd, dc, transparent, x, y, maskedRegion, updateLayeredWindowAlpha);
             }
 
             DeleteObject (rgn);
@@ -1878,7 +1909,12 @@ private:
                     return 0;
 
                 case WM_WINDOWPOSCHANGED:
-                    doMouseEvent (getCurrentMousePos());
+                    {
+                        const Point<int> pos (getCurrentMousePos());
+                        if (contains (pos, false))
+                            doMouseEvent (pos);
+                    }
+
                     handleMovedOrResized();
 
                     if (dontRepaint)
@@ -2222,13 +2258,13 @@ const ModifierKeys ModifierKeys::getCurrentModifiersRealtime() throw()
 {
     Win32ComponentPeer::updateKeyModifiers();
 
-    int keyMods = 0;
-    if ((GetKeyState (VK_LBUTTON) & 0x8000) != 0)   keyMods |= ModifierKeys::leftButtonModifier;
-    if ((GetKeyState (VK_RBUTTON) & 0x8000) != 0)   keyMods |= ModifierKeys::rightButtonModifier;
-    if ((GetKeyState (VK_MBUTTON) & 0x8000) != 0)   keyMods |= ModifierKeys::middleButtonModifier;
+    int mouseMods = 0;
+    if ((GetKeyState (VK_LBUTTON) & 0x8000) != 0)   mouseMods |= ModifierKeys::leftButtonModifier;
+    if ((GetKeyState (VK_RBUTTON) & 0x8000) != 0)   mouseMods |= ModifierKeys::rightButtonModifier;
+    if ((GetKeyState (VK_MBUTTON) & 0x8000) != 0)   mouseMods |= ModifierKeys::middleButtonModifier;
 
     Win32ComponentPeer::currentModifiers
-        = Win32ComponentPeer::currentModifiers.withOnlyMouseButtons().withFlags (keyMods);
+        = Win32ComponentPeer::currentModifiers.withoutMouseButtons().withFlags (mouseMods);
 
     return Win32ComponentPeer::currentModifiers;
 }