Class

Gtk.CellAreaContext

Description [src]

class Gtk.CellAreaContext : GObject.Object {
  /* No available fields */
}

Stores geometrical information for a series of rows in a GtkCellArea

The GtkCellAreaContext object is created by a given GtkCellArea implementation via its GtkCellAreaClass.create_context() virtual method and is used to store cell sizes and alignments for a series of GtkTreeModel rows that are requested and rendered in the same context.

GtkCellLayout widgets can create any number of contexts in which to request and render groups of data rows. However, it’s important that the same context which was used to request sizes for a given GtkTreeModel row also be used for the same row when calling other GtkCellArea APIs such as gtk_cell_area_render() and gtk_cell_area_event().

Hierarchy

hierarchy this GtkCellAreaContext ancestor_0 GObject ancestor_0--this

Ancestors

  • GObject

Instance methods

gtk_cell_area_context_allocate

Allocates a width and/or a height for all rows which are to be rendered with context.

gtk_cell_area_context_get_allocation

Fetches the current allocation size for context.

gtk_cell_area_context_get_area

Fetches the GtkCellArea this context was created by.

gtk_cell_area_context_get_preferred_height

Gets the accumulative preferred height for all rows which have been requested with this context.

gtk_cell_area_context_get_preferred_height_for_width

Gets the accumulative preferred height for width for all rows which have been requested for the same said width with this context.

gtk_cell_area_context_get_preferred_width

Gets the accumulative preferred width for all rows which have been requested with this context.

gtk_cell_area_context_get_preferred_width_for_height

Gets the accumulative preferred width for height for all rows which have been requested for the same said height with this context.

gtk_cell_area_context_push_preferred_height

Causes the minimum and/or natural height to grow if the new proposed sizes exceed the current minimum and natural height.

gtk_cell_area_context_push_preferred_width

Causes the minimum and/or natural width to grow if the new proposed sizes exceed the current minimum and natural width.

gtk_cell_area_context_reset

Resets any previously cached request and allocation data.

Properties

Gtk.CellAreaContext:area

The GtkCellArea this context was created by

Gtk.CellAreaContext:minimum-height

The minimum height for the GtkCellArea in this context for all GtkTreeModel rows that this context was requested for using gtk_cell_area_get_preferred_height().

Gtk.CellAreaContext:minimum-width

The minimum width for the GtkCellArea in this context for all GtkTreeModel rows that this context was requested for using gtk_cell_area_get_preferred_width().

Gtk.CellAreaContext:natural-height

The natural height for the GtkCellArea in this context for all GtkTreeModel rows that this context was requested for using gtk_cell_area_get_preferred_height().

Gtk.CellAreaContext:natural-width

The natural width for the GtkCellArea in this context for all GtkTreeModel rows that this context was requested for using gtk_cell_area_get_preferred_width().

Class structure

struct GtkCellAreaContextClass {
  void (* allocate) (
    GtkCellAreaContext* context,
    int width,
    int height
  );
  void (* reset) (
    GtkCellAreaContext* context
  );
  void (* get_preferred_height_for_width) (
    GtkCellAreaContext* context,
    int width,
    int* minimum_height,
    int* natural_height
  );
  void (* get_preferred_width_for_height) (
    GtkCellAreaContext* context,
    int height,
    int* minimum_width,
    int* natural_width
  );
  
}
Class members
allocate
void (* allocate) (
    GtkCellAreaContext* context,
    int width,
    int height
  )
  No description available.
reset
void (* reset) (
    GtkCellAreaContext* context
  )
  No description available.
get_preferred_height_for_width
void (* get_preferred_height_for_width) (
    GtkCellAreaContext* context,
    int width,
    int* minimum_height,
    int* natural_height
  )
  No description available.
get_preferred_width_for_height
void (* get_preferred_width_for_height) (
    GtkCellAreaContext* context,
    int height,
    int* minimum_width,
    int* natural_width
  )
  No description available.

Virtual methods

Gtk.CellAreaContextClass.allocate

Allocates a width and/or a height for all rows which are to be rendered with context.

Gtk.CellAreaContextClass.get_preferred_height_for_width

Gets the accumulative preferred height for width for all rows which have been requested for the same said width with this context.

Gtk.CellAreaContextClass.get_preferred_width_for_height

Gets the accumulative preferred width for height for all rows which have been requested for the same said height with this context.

Gtk.CellAreaContextClass.reset

Resets any previously cached request and allocation data.