/* gtkcellareacontext.h * * Copyright (C) 2010 Openismus GmbH * * Authors: * Tristan Van Berkom * * 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, write to the * Free Software Foundation, Inc., 59 Temple Place - Suite 330, * Boston, MA 02111-1307, USA. */ #if !defined (__GTK_H_INSIDE__) && !defined (GTK_COMPILATION) #error "Only can be included directly." #endif #ifndef __GTK_CELL_AREA_CONTEXT_H__ #define __GTK_CELL_AREA_CONTEXT_H__ #include 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 { GObject parent_instance; GtkCellAreaContextPrivate *priv; }; struct _GtkCellAreaContextClass { GObjectClass parent_class; /* Subclasses can use this to flush their alignments/allocations */ void (* flush_preferred_width) (GtkCellAreaContext *context); void (* flush_preferred_height_for_width) (GtkCellAreaContext *context, gint width); void (* flush_preferred_height) (GtkCellAreaContext *context); void (* flush_preferred_width_for_height) (GtkCellAreaContext *context, gint height); void (* flush_allocation) (GtkCellAreaContext *context); /* These must be invoked after a series of requests before consulting * the context values, implementors use this to push the overall * requests while acconting for any internal alignments */ void (* sum_preferred_width) (GtkCellAreaContext *context); void (* sum_preferred_height_for_width) (GtkCellAreaContext *context, gint width); void (* sum_preferred_height) (GtkCellAreaContext *context); void (* sum_preferred_width_for_height) (GtkCellAreaContext *context, gint height); /* Store an allocation value for a GtkCellArea contextual to a range of * treemodel rows */ void (* allocate_width) (GtkCellAreaContext *context, gint width); void (* allocate_height) (GtkCellAreaContext *context, gint height); /* Padding for future expansion */ void (*_gtk_reserved1) (void); void (*_gtk_reserved2) (void); void (*_gtk_reserved3) (void); void (*_gtk_reserved4) (void); }; GType gtk_cell_area_context_get_type (void) G_GNUC_CONST; GtkCellArea *gtk_cell_area_context_get_area (GtkCellAreaContext *context); /* Apis for GtkCellArea clients to flush the cache */ void gtk_cell_area_context_flush (GtkCellAreaContext *context); void gtk_cell_area_context_flush_preferred_width (GtkCellAreaContext *context); void gtk_cell_area_context_flush_preferred_height_for_width (GtkCellAreaContext *context, gint for_width); void gtk_cell_area_context_flush_preferred_height (GtkCellAreaContext *context); void gtk_cell_area_context_flush_preferred_width_for_height (GtkCellAreaContext *context, gint for_height); void gtk_cell_area_context_flush_allocation (GtkCellAreaContext *context); /* Apis for GtkCellArea clients to sum up the results of a series of requests, this * call is required to reduce the processing while calculating the size of each row */ void gtk_cell_area_context_sum_preferred_width (GtkCellAreaContext *context); void gtk_cell_area_context_sum_preferred_height_for_width (GtkCellAreaContext *context, gint for_width); void gtk_cell_area_context_sum_preferred_height (GtkCellAreaContext *context); void gtk_cell_area_context_sum_preferred_width_for_height (GtkCellAreaContext *context, gint for_height); /* Apis to set an allocation size in one dimension or another, the subclass specific context * will store allocated positions/sizes for individual cells or groups of cells */ void gtk_cell_area_context_allocate_width (GtkCellAreaContext *context, gint width); void gtk_cell_area_context_allocate_height (GtkCellAreaContext *context, gint height); /* Apis for GtkCellArea clients to consult cached values for multiple GtkTreeModel rows */ void gtk_cell_area_context_get_preferred_width (GtkCellAreaContext *context, gint *minimum_width, gint *natural_width); void gtk_cell_area_context_get_preferred_height_for_width (GtkCellAreaContext *context, gint for_width, gint *minimum_height, gint *natural_height); void gtk_cell_area_context_get_preferred_height (GtkCellAreaContext *context, gint *minimum_height, gint *natural_height); void gtk_cell_area_context_get_preferred_width_for_height (GtkCellAreaContext *context, gint for_height, gint *minimum_width, gint *natural_width); 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 */ void gtk_cell_area_context_push_preferred_width (GtkCellAreaContext *context, gint minimum_width, gint natural_width); void gtk_cell_area_context_push_preferred_height_for_width (GtkCellAreaContext *context, gint for_width, gint minimum_height, gint natural_height); void gtk_cell_area_context_push_preferred_height (GtkCellAreaContext *context, gint minimum_height, gint natural_height); void gtk_cell_area_context_push_preferred_width_for_height (GtkCellAreaContext *context, gint for_height, gint minimum_width, gint natural_width); G_END_DECLS #endif /* __GTK_CELL_AREA_CONTEXT_H__ */