Added multiple inheritance to the billboard texte scene node in order to...

Added multiple inheritance to the billboard texte scene node in order to expose both billboard and textnode interface.

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@1244 dfc29bdd-3216-0410-991c-e03cc46cb475

include/IAttributeExchangingObject.h

@@ -48,7 +48,7 @@ struct SAttributeReadWriteOptions
 
 
 //! An object which is able to serialize and deserialize its attributes into an attributes object
-class IAttributeExchangingObject : public virtual IReferenceCounted
+class IAttributeExchangingObject : virtual public IReferenceCounted
 {
 public:
 

include/IBillboardSceneNode.h

@@ -17,7 +17,7 @@ namespace scene
 which always looks to the camera. It is usually used for explosions, fire,
 lensflares, particles and things like that.
 */
-class IBillboardSceneNode : public ISceneNode
+class IBillboardSceneNode : virtual public ISceneNode
 {
 public:
 

include/ISceneNode.h

@@ -30,7 +30,7 @@ namespace scene
 	visible, its children won't be visible too. In this way, it is for example easily possible
 	to attach a light to a moving car, or to place a walking character on a moving platform
 	on a moving ship. */
-	class ISceneNode : public io::IAttributeExchangingObject
+	class ISceneNode : virtual public io::IAttributeExchangingObject
 	{
 	public:
 
@@ -375,7 +375,7 @@ namespace scene
 
 		//! Gets the scale of the scene node.
 		/** \return Returns the scale of the scene node. */
-		virtual core::vector3df getScale() const
+		virtual const core::vector3df& getScale() const
 		{
 			return RelativeScale;
 		}
@@ -410,7 +410,7 @@ namespace scene
 		//! Gets the position of the node.
 		/** Note that the position is relative to the parent.
 		\return Returns the current position of the node relative to the parent. */
-		virtual const core::vector3df getPosition() const
+		virtual const core::vector3df& getPosition() const
 		{
 			return RelativeTranslation;
 		}

include/ITextSceneNode.h

@@ -13,7 +13,7 @@ namespace scene
 {
 
 //! A scene node for displaying 2d text at a position in three dimensional space
-class ITextSceneNode : public ISceneNode
+class ITextSceneNode : virtual public ISceneNode
 {
 public:
 

include/SColor.h

@@ -359,9 +359,9 @@ namespace video
 	{
 	public:
 
-		//! Constructs a color. All values are initialised with 0.0f, resulting
-		//! in a black color.
-		SColorf() : r(0.0f), g(0.0f), b(0.0f), a(0.0f) {};
+		//! Constructs a color. All colors are initialised with 0.0f, resulting
+		//! in a black color. alpha is 1.0f for no transparency.
+		SColorf() : r(0.0f), g(0.0f), b(0.0f), a(1.0f) {};
 
 		//! Constructs a color from three color values: red, green and blue.
 		//! \param r: Red color component. Should be a value between 0.0f meaning

source/Irrlicht/CBillboardSceneNode.cpp

@@ -17,7 +17,7 @@ namespace scene
 CBillboardSceneNode::CBillboardSceneNode(ISceneNode* parent, ISceneManager* mgr, s32 id,
 			const core::vector3df& position, const core::dimension2d<f32>& size,
 			video::SColor shade_top, video::SColor shade_down)
-	: IBillboardSceneNode(parent, mgr, id, position)
+	: ISceneNode(parent, mgr, id, position), IBillboardSceneNode(parent, mgr, id, position)
 {
 	#ifdef _DEBUG
 	setDebugName("CBillboardSceneNode");

source/Irrlicht/CBillboardSceneNode.h

@@ -15,7 +15,7 @@ namespace scene
 
 //! Scene node which is a billboard. A billboard is like a 3d sprite: A 2d element,
 //! which always looks to the camera. 
-class CBillboardSceneNode : public IBillboardSceneNode
+class CBillboardSceneNode : virtual public IBillboardSceneNode
 {
 public:
 

source/Irrlicht/CTextSceneNode.cpp

@@ -22,7 +22,7 @@ CTextSceneNode::CTextSceneNode(ISceneNode* parent, ISceneManager* mgr, s32 id,
 			gui::IGUIFont* font, scene::ISceneCollisionManager* coll,
 			const core::vector3df& position, const wchar_t* text,
 			video::SColor color)
-	: ITextSceneNode(parent, mgr, id, position), Text(text), Color(color),
+	: ISceneNode(parent, mgr, id, position), ITextSceneNode(parent, mgr, id, position), Text(text), Color(color),
 		Font(font), Coll(coll)
 	
 {
@@ -93,7 +93,7 @@ CBillboardTextSceneNode::CBillboardTextSceneNode(ISceneNode* parent, ISceneManag
 	gui::IGUIFont* font,const wchar_t* text,
 	const core::vector3df& position, const core::dimension2d<f32>& size,
 	video::SColor shade_top,video::SColor shade_bottom )
-: ITextSceneNode(parent, mgr, id, position),
+: ISceneNode(parent, mgr, id, position), ITextSceneNode(parent, mgr, id, position), IBillboardSceneNode(parent, mgr, id, position),
 	Font(0), Shade_top(shade_top), Shade_bottom(shade_bottom), Mesh(0)
 {
 	#ifdef _DEBUG
@@ -228,7 +228,6 @@ void CBillboardTextSceneNode::setText(const wchar_t* text)
 		info.firstVert = firstVert;
 
 		Symbol.push_back(info);
-
 	}
 }
 
@@ -333,10 +332,7 @@ void CBillboardTextSceneNode::render()
 	core::matrix4 mat;
 	driver->setTransform(video::ETS_WORLD, mat);
 
-	
-
-	u32 i;
-	for ( i = 0; i < Mesh->getMeshBufferCount(); ++i )
+	for (u32 i = 0; i < Mesh->getMeshBufferCount(); ++i)
 	{
 		driver->setMaterial(Mesh->getMeshBuffer(i)->getMaterial());
 		driver->drawMeshBuffer(Mesh->getMeshBuffer(i));
@@ -350,9 +346,9 @@ void CBillboardTextSceneNode::render()
 		driver->setMaterial(m);
 		driver->draw3DBox(BBox, video::SColor(0,208,195,152));
 	}
-
 }
 
+
 //! returns the axis aligned bounding box of this node
 const core::aabbox3d<f32>& CBillboardTextSceneNode::getBoundingBox() const
 {
@@ -397,20 +393,62 @@ u32 CBillboardTextSceneNode::getMaterialCount() const
 
 
 //! gets the size of the billboard
-const core::dimension2d<f32>& CBillboardTextSceneNode::getSize()
+const core::dimension2d<f32>& CBillboardTextSceneNode::getSize() const
 {
 	return Size;
 }
 
 
-
-
 //! sets the color of the text
 void CBillboardTextSceneNode::setTextColor(video::SColor color)
 {
 	Color = color;
 }
 
+//! Set the color of all vertices of the billboard
+//! \param overallColor: the color to set
+void CBillboardTextSceneNode::setColor(const video::SColor & overallColor)
+{
+	for ( u32 i = 0; i != Text.size (); ++i )
+	{
+		const SSymbolInfo &info = Symbol[i];
+		SMeshBuffer* buf = (SMeshBuffer*)Mesh->getMeshBuffer(info.bufNo);
+		buf->Vertices[info.firstVert+0].Color = overallColor;
+		buf->Vertices[info.firstVert+1].Color = overallColor;
+		buf->Vertices[info.firstVert+2].Color = overallColor;
+		buf->Vertices[info.firstVert+3].Color = overallColor;
+	}
+}
+
+
+//! Set the color of the top and bottom vertices of the billboard
+//! \param topColor: the color to set the top vertices
+//! \param bottomColor: the color to set the bottom vertices
+void CBillboardTextSceneNode::setColor(const video::SColor & topColor, const video::SColor & bottomColor)
+{
+	Shade_bottom = bottomColor;
+	Shade_top = topColor;
+	for ( u32 i = 0; i != Text.size (); ++i )
+	{
+		const SSymbolInfo &info = Symbol[i];
+		SMeshBuffer* buf = (SMeshBuffer*)Mesh->getMeshBuffer(info.bufNo);
+		buf->Vertices[info.firstVert+0].Color = Shade_bottom;
+		buf->Vertices[info.firstVert+3].Color = Shade_bottom;
+		buf->Vertices[info.firstVert+1].Color = Shade_top;
+		buf->Vertices[info.firstVert+2].Color = Shade_top;
+	}
+}
+
+
+//! Gets the color of the top and bottom vertices of the billboard
+//! \param topColor: stores the color of the top vertices
+//! \param bottomColor: stores the color of the bottom vertices
+void CBillboardTextSceneNode::getColor(video::SColor & topColor, video::SColor & bottomColor) const
+{
+	topColor = Shade_top;
+	bottomColor = Shade_bottom;
+}
+
 
 } // end namespace scene
 } // end namespace irr

source/Irrlicht/CTextSceneNode.h

@@ -6,6 +6,7 @@
 #define __C_TEXT_SCENE_NODE_H_INCLUDED__
 
 #include "ITextSceneNode.h"
+#include "IBillboardSceneNode.h"
 #include "IGUIFont.h"
 #include "IGUIFontBitmap.h"
 #include "ISceneCollisionManager.h"
@@ -56,7 +57,7 @@ namespace scene
 		core::aabbox3d<f32> Box;
 	};
 
-	class CBillboardTextSceneNode : public ITextSceneNode
+	class CBillboardTextSceneNode : virtual public ITextSceneNode, virtual public IBillboardSceneNode
 	{
 	public:
 
@@ -86,7 +87,7 @@ namespace scene
 		virtual void setSize(const core::dimension2d<f32>& size);
 
 		//! gets the size of the billboard
-		virtual const core::dimension2d<f32>& getSize();
+		virtual const core::dimension2d<f32>& getSize() const;
 
 		virtual video::SMaterial& getMaterial(u32 i);
 		
@@ -96,6 +97,20 @@ namespace scene
 		//! Returns type of the scene node
 		virtual ESCENE_NODE_TYPE getType() const { return ESNT_TEXT; }
 
+		//! Set the color of all vertices of the billboard
+		//! \param overallColor: the color to set
+		virtual void setColor(const video::SColor & overallColor);
+
+		//! Set the color of the top and bottom vertices of the billboard
+		//! \param topColor: the color to set the top vertices
+		//! \param bottomColor: the color to set the bottom vertices
+		virtual void setColor(const video::SColor & topColor, const video::SColor & bottomColor);
+
+		//! Gets the color of the top and bottom vertices of the billboard
+		//! \param topColor: stores the color of the top vertices
+		//! \param bottomColor: stores the color of the bottom vertices
+		virtual void getColor(video::SColor & topColor, video::SColor & bottomColor) const;
+
 	private:
 
 		core::stringw Text;