5f7787ab2e
- gtk_cell_area_context_get_height_for_width() - gtk_cell_area_context_get_width_for_height() - gtk_cell_area_context_push_height_for_width() - gtk_cell_area_context_push_width_for_height() - gtk_cell_area_context_flush_height_for_width() - gtk_cell_area_context_flush_width_for_height() - Contextual size changed signal All of these are not really important for the CellArea to operate and not of any real consequential value to the user (the user can accumulate the returned values from height-for-width requests and do as they please with it).
125 lines
5.8 KiB
C
125 lines
5.8 KiB
C
/* gtkcellareacontext.h
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*
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* Copyright (C) 2010 Openismus GmbH
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*
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* Authors:
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* Tristan Van Berkom <tristanvb@openismus.com>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION)
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#error "Only <gtk/gtk.h> can be included directly."
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#endif
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#ifndef __GTK_CELL_AREA_CONTEXT_H__
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#define __GTK_CELL_AREA_CONTEXT_H__
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#include <gtk/gtkcellarea.h>
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G_BEGIN_DECLS
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#define GTK_TYPE_CELL_AREA_CONTEXT (gtk_cell_area_context_get_type ())
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#define GTK_CELL_AREA_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_CELL_AREA_CONTEXT, GtkCellAreaContext))
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#define GTK_CELL_AREA_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_CELL_AREA_CONTEXT, GtkCellAreaContextClass))
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#define GTK_IS_CELL_AREA_CONTEXT(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_CELL_AREA_CONTEXT))
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#define GTK_IS_CELL_AREA_CONTEXT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_CELL_AREA_CONTEXT))
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#define GTK_CELL_AREA_CONTEXT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_CELL_AREA_CONTEXT, GtkCellAreaContextClass))
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typedef struct _GtkCellAreaContextPrivate GtkCellAreaContextPrivate;
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typedef struct _GtkCellAreaContextClass GtkCellAreaContextClass;
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struct _GtkCellAreaContext
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{
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GObject parent_instance;
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GtkCellAreaContextPrivate *priv;
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};
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struct _GtkCellAreaContextClass
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{
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GObjectClass parent_class;
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/* Subclasses can use this to flush their alignments/allocations */
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void (* flush_preferred_width) (GtkCellAreaContext *context);
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void (* flush_preferred_height) (GtkCellAreaContext *context);
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void (* flush_allocation) (GtkCellAreaContext *context);
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/* These must be invoked after a series of requests before consulting
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* the context values, implementors use this to push the overall
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* requests while acconting for any internal alignments */
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void (* sum_preferred_width) (GtkCellAreaContext *context);
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void (* sum_preferred_height) (GtkCellAreaContext *context);
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/* Store an allocation value for a GtkCellArea contextual to a range of
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* treemodel rows */
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void (* allocate_width) (GtkCellAreaContext *context,
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gint width);
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void (* allocate_height) (GtkCellAreaContext *context,
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gint height);
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/* Padding for future expansion */
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void (*_gtk_reserved1) (void);
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void (*_gtk_reserved2) (void);
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void (*_gtk_reserved3) (void);
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void (*_gtk_reserved4) (void);
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};
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GType gtk_cell_area_context_get_type (void) G_GNUC_CONST;
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GtkCellArea *gtk_cell_area_context_get_area (GtkCellAreaContext *context);
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/* Apis for GtkCellArea clients to flush the cache */
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void gtk_cell_area_context_flush (GtkCellAreaContext *context);
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void gtk_cell_area_context_flush_preferred_width (GtkCellAreaContext *context);
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void gtk_cell_area_context_flush_preferred_height (GtkCellAreaContext *context);
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void gtk_cell_area_context_flush_allocation (GtkCellAreaContext *context);
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/* Apis for GtkCellArea clients to sum up the results of a series of requests, this
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* call is required to reduce the processing while calculating the size of each row */
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void gtk_cell_area_context_sum_preferred_width (GtkCellAreaContext *context);
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void gtk_cell_area_context_sum_preferred_height (GtkCellAreaContext *context);
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/* Apis to set an allocation size in one dimension or another, the subclass specific context
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* will store allocated positions/sizes for individual cells or groups of cells */
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void gtk_cell_area_context_allocate_width (GtkCellAreaContext *context,
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gint width);
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void gtk_cell_area_context_allocate_height (GtkCellAreaContext *context,
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gint height);
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/* Apis for GtkCellArea clients to consult cached values for multiple GtkTreeModel rows */
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void gtk_cell_area_context_get_preferred_width (GtkCellAreaContext *context,
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gint *minimum_width,
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gint *natural_width);
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void gtk_cell_area_context_get_preferred_height (GtkCellAreaContext *context,
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gint *minimum_height,
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gint *natural_height);
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void gtk_cell_area_context_get_allocation (GtkCellAreaContext *context,
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gint *width,
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gint *height);
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/* Apis for GtkCellArea implementations to update cached values for multiple GtkTreeModel rows */
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void gtk_cell_area_context_push_preferred_width (GtkCellAreaContext *context,
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gint minimum_width,
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gint natural_width);
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void gtk_cell_area_context_push_preferred_height (GtkCellAreaContext *context,
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gint minimum_height,
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gint natural_height);
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G_END_DECLS
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#endif /* __GTK_CELL_AREA_CONTEXT_H__ */
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