Add override font to IGUITreeView (thx @Escen for reminder)

git-svn-id: svn://svn.code.sf.net/p/irrlicht/code/trunk@5100 dfc29bdd-3216-0410-991c-e03cc46cb475

changes.txt

 --------------------------
 Changes in 1.9 (not yet released)
 
+- Add override font to IGUITreeView
 - CGUIComboBox now updates selection-list when font changes while it's open (thx @ rubixcuber for bugreport)
 - CAnimatedMeshSceneNode::setMesh does now set the animation speed again to that of the mesh (had been changed in 1.7, but not for obvious reasons)
 - .x meshloader regards now AnimTicksPerSecond (thx @qian for a test-model and bugreport)

include/IGUITreeView.h

@@ -253,6 +253,19 @@ namespace gui
 		*/
 		virtual void setIconFont( IGUIFont* font ) = 0;
 
+		//! Sets a skin independent font.
+		/** \param font: New font to set or 0 to use the skin-font. */
+		virtual void setOverrideFont(IGUIFont* font=0) = 0;
+
+		//! Gets the override font (if any)
+		/** \return The override font (may be 0) */
+		virtual IGUIFont* getOverrideFont(void) const = 0;
+
+		//! Get the font which is used for drawing
+		/** This is the override font when one is set and the
+		font of the skin otherwise. */
+		virtual IGUIFont* getActiveFont() const = 0;
+
 		//! Sets the image list which should be used for the image and selected image of every node.
 		/** The default is 0 (no images). */
 		virtual void setImageList( IGUIImageList* imageList ) = 0;

source/Irrlicht/CGUITreeView.cpp

@@ -433,6 +433,7 @@ CGUITreeView::CGUITreeView(IGUIEnvironment* environment, IGUIElement* parent,
 	TotalItemHeight( 0 ),
 	TotalItemWidth ( 0 ),
 	Font( 0 ),
+	OverrideFont( 0 ),
 	IconFont( 0 ),
 	ScrollBarH( 0 ),
 	ScrollBarV( 0 ),
@@ -522,19 +523,50 @@ CGUITreeView::~CGUITreeView()
 	}
 }
 
-void CGUITreeView::recalculateItemHeight()
+//! Sets another skin independent font.
+void CGUITreeView::setOverrideFont(IGUIFont* font)
+{
+	if (OverrideFont == font)
+		return;
+
+	if (OverrideFont)
+		OverrideFont->drop();
+
+	OverrideFont = font;
+
+	if (OverrideFont)
+		OverrideFont->grab();
+
+	recalculateItemHeight();
+}
+
+//! Gets the override font (if any)
+IGUIFont * CGUITreeView::getOverrideFont() const
 {
+	return OverrideFont;
+}
+
+//! Get the font which is used right now for drawing
+IGUIFont* CGUITreeView::getActiveFont() const
+{
+	if ( OverrideFont )
+		return OverrideFont;
 	IGUISkin* skin = Environment->getSkin();
-	IGUITreeViewNode*	node;
+	if (skin)
+		return skin->getFont();
+	return 0;
+}
 
-	if( Font != skin->getFont() )
+void CGUITreeView::recalculateItemHeight()
+{
+	if( Font != getActiveFont() )
 	{
 		if( Font )
 		{
 			Font->drop();
 		}
 
-		Font = skin->getFont();
+		Font = getActiveFont();
 		ItemHeight = 0;
 
 		if( Font )
@@ -579,7 +611,7 @@ void CGUITreeView::recalculateItemHeight()
 
 	TotalItemHeight = 0;
 	TotalItemWidth = AbsoluteRect.getWidth() * 2;
-	node = Root->getFirstChild();
+	IGUITreeViewNode* node = Root->getFirstChild();
 	while( node )
 	{
 		TotalItemHeight += ItemHeight;

source/Irrlicht/CGUITreeView.h

@@ -277,6 +277,19 @@ namespace gui
 		//! Irrlicht engine as icon font, the icon strings defined in GUIIcons.h can be used.
 		virtual void setIconFont( IGUIFont* font ) _IRR_OVERRIDE_;
 
+		//! Sets a skin independent font.
+		/** \param font: New font to set or 0 to use the skin-font. */
+		virtual void setOverrideFont(IGUIFont* font=0) _IRR_OVERRIDE_;
+
+		//! Gets the override font (if any)
+		/** \return The override font (may be 0) */
+		virtual IGUIFont* getOverrideFont(void) const _IRR_OVERRIDE_;
+
+		//! Get the font which is used for drawing
+		/** This is the override font when one is set and the
+		font of the skin otherwise. */
+		virtual IGUIFont* getActiveFont() const _IRR_OVERRIDE_;
+
 		//! Sets the image list which should be used for the image and selected image of every node.
 		//! The default is 0 (no images).
 		virtual void setImageList( IGUIImageList* imageList ) _IRR_OVERRIDE_;
@@ -317,6 +330,7 @@ namespace gui
 		s32			TotalItemHeight;
 		s32			TotalItemWidth;
 		IGUIFont*		Font;
+		gui::IGUIFont*	OverrideFont;
 		IGUIFont*		IconFont;
 		IGUIScrollBar*		ScrollBarH;
 		IGUIScrollBar*		ScrollBarV;