CellRenderer

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Object Hierarchy:

Description:

Content:

Properties:

• public string cell_background { set; }
• public Color cell_background_gdk { set; get; }
• public bool cell_background_set { set; get; }
• public bool editing { get; }
• public int height { set; get; }
• public bool is_expanded { set; get; }
• public bool is_expander { set; get; }
• public CellRendererMode mode { set; get; }
• public bool sensitive { set; get; }
• public bool visible { set; get; }
• public int width { set; get; }
• public float xalign { set; get; }
• public uint xpad { set; get; }
• public float yalign { set; get; }
• public uint ypad { set; get; }

Creation methods:

• protected CellRenderer ()

Methods:

• public virtual bool activate (Event event, Widget widget, string path, Rectangle background_area, Rectangle cell_area, CellRendererState flags)
  Passes an activate event to the cell renderer for possible processing. Some cell renderers may use events; for example, CellRendererToggle toggles when it gets a mouse click.
• public void get_alignment (out float xalign, out float yalign)
  Fills in xalign and yalign with the appropriate values of cell.
• public void get_fixed_size (out int width, out int height)
  Fills in width and height with the appropriate size of cell.
• public void get_padding (out int xpad, out int ypad)
  Fills in xpad and ypad with the appropriate values of cell.
• public bool get_sensitive ()
  Returns the cell renderer's sensitivity.
• public abstract void get_size (Widget widget, Rectangle? cell_area, out int x_offset, out int y_offset, out int width, out int height)
  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 null, fills in the x and y offsets (if set) of the cell relative to this location.
• public bool get_visible ()
  Returns the cell renderer's visibility.
• public abstract void render (Window window, Widget widget, Rectangle background_area, Rectangle cell_area, Rectangle expose_area, CellRendererState flags)
  Invokes the virtual render function of the 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 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.
• public void set_alignment (float xalign, float yalign)
  Sets the renderer's alignment within its available space.
• public void set_fixed_size (int width, int height)
  Sets the renderer size to be explicit, independent of the properties set.
• public void set_padding (int xpad, int ypad)
  Sets the renderer's padding.
• public void set_sensitive (bool sensitive)
  Sets the cell renderer's sensitivity.
• public void set_visible (bool visible)
  Sets the cell renderer's visibility.
• public virtual weak CellEditable start_editing (Event event, Widget widget, string path, Rectangle background_area, Rectangle cell_area, CellRendererState flags)
  Passes an activate event to the cell renderer for possible processing.
• public void stop_editing (bool canceled)
  Informs the cell renderer that the editing is stopped. If canceled is true, the cell renderer will emit the editing_canceled signal.

Signals:

• public virtual void editing_canceled ()
  This signal gets emitted when the user cancels the process of editing a cell. For example, an editable cell renderer could be written to cancel editing when the user presses Escape.
• public virtual void editing_started (CellEditable editable, string path)
  This signal gets emitted when a cell starts to be edited. The intended use of this signal is to do special setup on editable, e.g. adding a EntryCompletion or setting up additional columns in a ComboBox.