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/* gtkcellareacontext.h
*
* Copyright (C) 2010 Openismus GmbH
*
* Authors:
* Tristan Van Berkom <tristanvb@openismus.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __GTK_CELL_AREA_CONTEXT_H__
#define __GTK_CELL_AREA_CONTEXT_H__
#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
#error "Only <gtk/gtk.h> can be included directly."
#endif
#include <gtk/gtkcellarea.h>
G_BEGIN_DECLS
#define GTK_TYPE_CELL_AREA_CONTEXT (gtk_cell_area_context_get_type ())
#define GTK_CELL_AREA_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_CELL_AREA_CONTEXT, GtkCellAreaContext))
#define GTK_CELL_AREA_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_CELL_AREA_CONTEXT, GtkCellAreaContextClass))
#define GTK_IS_CELL_AREA_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_CELL_AREA_CONTEXT))
#define GTK_IS_CELL_AREA_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_CELL_AREA_CONTEXT))
#define GTK_CELL_AREA_CONTEXT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CELL_AREA_CONTEXT, GtkCellAreaContextClass))
typedef struct _GtkCellAreaContextPrivate GtkCellAreaContextPrivate;
typedef struct _GtkCellAreaContextClass GtkCellAreaContextClass;
struct _GtkCellAreaContext
{
/*< private >*/
GObject parent_instance;
GtkCellAreaContextPrivate *priv;
};
/**
* GtkCellAreaContextClass:
* @allocate: This tells the context that an allocation width or height
* (or both) have been decided for a group of rows. The context should
* store any allocations for internally aligned cells at this point so
* that they dont need to be recalculated at gtk_cell_area_render() time.
* @reset: Clear any previously stored information about requested and
* allocated sizes for the context.
* @get_preferred_height_for_width: Returns the aligned height for the given
* width that context must store while collecting sizes for it’s rows.
* @get_preferred_width_for_height: Returns the aligned width for the given
* height that context must store while collecting sizes for it’s rows.
*/
struct _GtkCellAreaContextClass
{
/*< private >*/
GObjectClass parent_class;
/*< public >*/
void (* allocate) (GtkCellAreaContext *context,
gint width,
gint height);
void (* reset) (GtkCellAreaContext *context);
void (* get_preferred_height_for_width) (GtkCellAreaContext *context,
gint width,
gint *minimum_height,
gint *natural_height);
void (* get_preferred_width_for_height) (GtkCellAreaContext *context,
gint height,
gint *minimum_width,
gint *natural_width);
/*< private >*/
/* Padding for future expansion */
void (*_gtk_reserved1) (void);
void (*_gtk_reserved2) (void);
void (*_gtk_reserved3) (void);
void (*_gtk_reserved4) (void);
void (*_gtk_reserved5) (void);
void (*_gtk_reserved6) (void);
};
GDK_AVAILABLE_IN_ALL
GType gtk_cell_area_context_get_type (void) G_GNUC_CONST;
/* Main apis */
GDK_AVAILABLE_IN_ALL
GtkCellArea *gtk_cell_area_context_get_area (GtkCellAreaContext *context);
GDK_AVAILABLE_IN_ALL
void gtk_cell_area_context_allocate (GtkCellAreaContext *context,
gint width,
gint height);
GDK_AVAILABLE_IN_ALL
void gtk_cell_area_context_reset (GtkCellAreaContext *context);
/* Apis for GtkCellArea clients to consult cached values
* for a series of GtkTreeModel rows
*/
GDK_AVAILABLE_IN_ALL
void gtk_cell_area_context_get_preferred_width (GtkCellAreaContext *context,
gint *minimum_width,
gint *natural_width);
GDK_AVAILABLE_IN_ALL
void gtk_cell_area_context_get_preferred_height (GtkCellAreaContext *context,
gint *minimum_height,
gint *natural_height);
GDK_AVAILABLE_IN_ALL
void gtk_cell_area_context_get_preferred_height_for_width (GtkCellAreaContext *context,
gint width,
gint *minimum_height,
gint *natural_height);
GDK_AVAILABLE_IN_ALL
void gtk_cell_area_context_get_preferred_width_for_height (GtkCellAreaContext *context,
gint height,
gint *minimum_width,
gint *natural_width);
GDK_AVAILABLE_IN_ALL
void gtk_cell_area_context_get_allocation (GtkCellAreaContext *context,
gint *width,
gint *height);
/* Apis for GtkCellArea implementations to update cached values
* for multiple GtkTreeModel rows
*/
GDK_AVAILABLE_IN_ALL
void gtk_cell_area_context_push_preferred_width (GtkCellAreaContext *context,
gint minimum_width,
gint natural_width);
GDK_AVAILABLE_IN_ALL
void gtk_cell_area_context_push_preferred_height (GtkCellAreaContext *context,
gint minimum_height,
gint natural_height);
G_END_DECLS
#endif /* __GTK_CELL_AREA_CONTEXT_H__ */
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