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Widgets     Book   Gtk::CellRenderer Class Reference [TreeView Classes] CellRenderers are used by Gtk::TreeView columns to render the Gtk::TreeModel column data appropriately. More... Inheritance diagram for Gtk::CellRenderer: [legend]List of all members. Public Methods virtual  ~CellRenderer () GtkCellRenderer*  gobj () const GtkCellRenderer*  gobj () const void  get_size (Widget& widget, const Gdk::Rectangle& cell_area, int& x_offset, int& y_offset, int& width, int& height) const   Obtains the width and height needed to render the cell. void  get_size (Widget& widget, int& x_offset, int& y_offset, int& width, int& height) const void  render (const Glib::RefPtr<Gdk::Window>& window, Widget& widget, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, const Gdk::Rectangle& expose_area, CellRendererState flags)   Invokes the virtual render function of the Gtk::CellRenderer. bool  activate (GdkEvent* event, Widget& widget, const Glib::ustring& path, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, CellRendererState flags)   Passes an activate event to the cell renderer for possible processing. CellEditable*  start_editing (GdkEvent* event, Widget& widget, const Glib::ustring& path, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, CellRendererState flags)   Passes an activate event to the cell renderer for possible processing. void  set_fixed_size (int width, int height)   Sets the renderer size to be explicit, independent of the properties set. void  get_fixed_size (int& width, int& height) const   Fills in width and height with the appropriate size of cell . virtual Glib::PropertyProxy_Base  _property_renderable ()   Returns the property that this CellRenderer renders. Glib::PropertyProxy<CellRendererMode>  property_mode () Glib::PropertyProxy<bool>  property_visible () Glib::PropertyProxy<float>  property_xalign () Glib::PropertyProxy<float>  property_yalign () Glib::PropertyProxy< unsigned int >  property_xpad () Glib::PropertyProxy< unsigned int >  property_ypad () Glib::PropertyProxy<int>  property_width () Glib::PropertyProxy<int>  property_height () Glib::PropertyProxy<bool>  property_is_expander () Glib::PropertyProxy<bool>  property_is_expanded () Protected Methods virtual void  get_size_vfunc (Widget& widget, const Gdk::Rectangle* cell_area, int* x_offset, int* y_offset, int* width, int* height) virtual void  render_vfunc (const Glib::RefPtr<Gdk::Window>& window, Widget& widget, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, const Gdk::Rectangle& expose_area, CellRendererState flags) virtual bool  activate_vfunc (GdkEvent* event, Widget& widget, const Glib::ustring& path, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, CellRendererState flags) virtual CellEditable*  start_editing_vfunc (GdkEvent* event, Widget& widget, const Glib::ustring& path, const Gdk::Rectangle& background_area, const Gdk::Rectangle& cell_area, CellRendererState flags)   CellRenderer () Related Functions (Note that these are not member functions.) Gtk::CellRenderer*  wrap (GtkCellRenderer* object, bool take_copy=false) Detailed Description CellRenderers are used by Gtk::TreeView columns to render the Gtk::TreeModel column data appropriately. They display, and allow editing of, the values of their _property_renderable() properties. In most cases, Gtl::TreeView::append_column() will automatically choose the appropriate renderer for the mode column's data type, so you will rarely need to worry about these classes. Constructor & Destructor Documentation virtual Gtk::CellRenderer::~CellRenderer (   )  [virtual] Gtk::CellRenderer::CellRenderer (   )  [protected] Member Function Documentation virtual Glib::PropertyProxy_Base Gtk::CellRenderer::_property_renderable (   )  [virtual]   Returns the property that this CellRenderer renders. For instance, property_text for CellRendererText, and property_active for CellRendererToggle Needs to be overridden in derived classes. Reimplemented in Gtk::CellRendererPixbuf, Gtk::CellRendererText, and Gtk::CellRendererToggle. bool Gtk::CellRenderer::activate ( GdkEvent*    event, Widget&    widget, const Glib::ustring&    path, const Gdk::Rectangle&    background_area, const Gdk::Rectangle&    cell_area, CellRendererState    flags )    Passes an activate event to the cell renderer for possible processing. Some cell renderers may use events; for example, Gtk::CellRendererToggle toggles when it gets a mouse click. Parameters: event  A Gdk::Event. widget  Widget that received the event. path  Widget-dependent string representation of the event location; e.g. for Gtk::TreeView, a string representation of Gtk::TreePath. background_area  Background area as passed to gtk_cell_renderer_render . cell_area  Cell area as passed to gtk_cell_renderer_render . flags  Render flags. Returns: true if the event was consumed/handled. virtual bool Gtk::CellRenderer::activate_vfunc ( GdkEvent*    event, Widget&    widget, const Glib::ustring&    path, const Gdk::Rectangle&    background_area, const Gdk::Rectangle&    cell_area, CellRendererState    flags )  [protected, virtual] void Gtk::CellRenderer::get_fixed_size ( int&    width, int&    height )  const   Fills in width and height with the appropriate size of cell . Parameters: width  Location to fill in with the fixed width of the widget, or 0. height  Location to fill in with the fixed height of the widget, or 0. void Gtk::CellRenderer::get_size ( Widget&    widget, int&    x_offset, int&    y_offset, int&    width, int&    height )  const void Gtk::CellRenderer::get_size ( Widget&    widget, const Gdk::Rectangle&    cell_area, int&    x_offset, int&    y_offset, int&    width, int&    height )  const   Obtains the width and height needed to render the cell. Used by view widgets to determine the appropriate size for the cell_area passed to render(). If cell_area is not 0, fills in the x and y offsets (if set) of the cell relative to this location. Please note that the values set in width and height , as well as those in x_offset and y_offset are inclusive of the xpad and ypad properties. Parameters: widget  The widget the renderer is rendering to. cell_area  The area a cell will be allocated, or 0. x_offset  Location to return x offset of cell relative to cell_area , or 0. y_offset  Location to return y offset of cell relative to cell_area , or 0. width  Location to return width needed to render a cell, or 0. height  Location to return height needed to render a cell, or 0. virtual void Gtk::CellRenderer::get_size_vfunc ( Widget&    widget, const Gdk::Rectangle*    cell_area, int*    x_offset, int*    y_offset, int*    width, int*    height )  [protected, virtual] const GtkCellRenderer* Gtk::CellRenderer::gobj (   )  const [inline]   Reimplemented from Gtk::Object. Reimplemented in Gtk::CellRendererPixbuf, Gtk::CellRendererText, and Gtk::CellRendererToggle. GtkCellRenderer* Gtk::CellRenderer::gobj (   )  [inline]   Reimplemented from Gtk::Object. Reimplemented in Gtk::CellRendererPixbuf, Gtk::CellRendererText, and Gtk::CellRendererToggle. Glib::PropertyProxy<int> Gtk::CellRenderer::property_height (   )  Glib::PropertyProxy<bool> Gtk::CellRenderer::property_is_expanded (   )  Glib::PropertyProxy<bool> Gtk::CellRenderer::property_is_expander (   )  Glib::PropertyProxy<CellRendererMode> Gtk::CellRenderer::property_mode (   )  Glib::PropertyProxy<bool> Gtk::CellRenderer::property_visible (   )  Glib::PropertyProxy<int> Gtk::CellRenderer::property_width (   )  Glib::PropertyProxy<float> Gtk::CellRenderer::property_xalign (   )  Glib::PropertyProxy<unsigned int> Gtk::CellRenderer::property_xpad (   )  Glib::PropertyProxy<float> Gtk::CellRenderer::property_yalign (   )  Glib::PropertyProxy<unsigned int> Gtk::CellRenderer::property_ypad (   )  void Gtk::CellRenderer::render ( const Glib::RefPtr<Gdk::Window>&    window, Widget&    widget, const Gdk::Rectangle&    background_area, const Gdk::Rectangle&    cell_area, const Gdk::Rectangle&    expose_area, CellRendererState    flags )    Invokes the virtual render function of the Gtk::CellRenderer. The three passed-in rectangles are areas of window . Most renderers will draw within cell_area ; the xalign, yalign, xpad, and ypad fields of the Gtk::CellRenderer should be honored with respect to cell_area . background_area includes the blank space around the cell, and also the area containing the tree expander; so the background_area rectangles for all cells tile to cover the entire window . expose_area is a clip rectangle. Parameters: window  A Gdk::Drawable to draw to. widget  The widget owning window . background_area  Entire cell area (including tree expanders and maybe padding on the sides). cell_area  Area normally rendered by a cell renderer. expose_area  Area that actually needs updating. flags  Flags that affect rendering. virtual void Gtk::CellRenderer::render_vfunc ( const Glib::RefPtr<Gdk::Window>&    window, Widget&    widget, const Gdk::Rectangle&    background_area, const Gdk::Rectangle&    cell_area, const Gdk::Rectangle&    expose_area, CellRendererState    flags )  [protected, virtual] void Gtk::CellRenderer::set_fixed_size ( int    width, int    height )    Sets the renderer size to be explicit, independent of the properties set. Parameters: width  The width of the cell renderer, or -1. height  The height of the cell renderer, or -1. CellEditable* Gtk::CellRenderer::start_editing ( GdkEvent*    event, Widget&    widget, const Glib::ustring&    path, const Gdk::Rectangle&    background_area, const Gdk::Rectangle&    cell_area, CellRendererState    flags )    Passes an activate event to the cell renderer for possible processing. Parameters: event  A Gdk::Event. widget  Widget that received the event. path  Widget-dependent string representation of the event location; e.g. for Gtk::TreeView, a string representation of Gtk::TreePath. background_area  Background area as passed to gtk_cell_renderer_render . cell_area  Cell area as passed to gtk_cell_renderer_render . flags  Render flags. Returns: A new Gtk::CellEditable, or 0. virtual CellEditable* Gtk::CellRenderer::start_editing_vfunc ( GdkEvent*    event, Widget&    widget, const Glib::ustring&    path, const Gdk::Rectangle&    background_area, const Gdk::Rectangle&    cell_area, CellRendererState    flags )  [protected, virtual] Friends And Related Function Documentation Gtk::CellRenderer* wrap ( GtkCellRenderer*    object, bool    take_copy = false )  [related] The documentation for this class was generated from the following file: cellrenderer.h