X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/6eec70b984525aac09528c32411f19113620e284..cd300ef760aefb0562a07ed1a614bb5074670f05:/include/wx/gtk/dvrenderer.h

diff --git a/include/wx/gtk/dvrenderer.h b/include/wx/gtk/dvrenderer.h
index 9513104c1c..cb7d617830 100644
--- a/include/wx/gtk/dvrenderer.h
+++ b/include/wx/gtk/dvrenderer.h
@@ -12,6 +12,7 @@
 #ifndef _WX_GTK_DVRENDERER_H_
 #define _WX_GTK_DVRENDERER_H_
 
+typedef struct _GtkCellRendererText GtkCellRendererText;
 typedef struct _GtkTreeViewColumn GtkTreeViewColumn;
 
 // ----------------------------------------------------------------------------
@@ -53,9 +54,30 @@ public:
     void GtkInitHandlers();
     void GtkUpdateAlignment();
 
+    // should be overridden to return true if the renderer supports properties
+    // corresponding to wxDataViewItemAttr field, see wxGtkTreeCellDataFunc()
+    // for details
+    virtual bool GtkSupportsAttrs() const { return false; }
+
+    // if GtkSupportsAttrs() returns true, this function will be called to
+    // effectively set the attribute to use for rendering the next item
+    //
+    // it should return true if the attribute had any non-default properties
+    virtual bool GtkSetAttr(const wxDataViewItemAttr& WXUNUSED(attr))
+        { return false; }
+
+
+    // these functions are only called if GtkSupportsAttrs() returns true and
+    // are used to remember whether the renderer currently uses the default
+    // attributes or if we changed (and not reset them)
     bool GtkIsUsingDefaultAttrs() const { return m_usingDefaultAttrs; }
     void GtkSetUsingDefaultAttrs(bool def) { m_usingDefaultAttrs = def; }
 
+    // return the text renderer used by this renderer for setting text cell
+    // specific attributes: can return NULL if this renderer doesn't render any
+    // text
+    virtual GtkCellRendererText *GtkGetTextRenderer() const { return NULL; }
+
 protected:
     virtual void GtkOnCellChanged(const wxVariant& value,
                                   const wxDataViewItem& item,