705e7ee100
Starting to form a good api, implemented most of GtkCellLayout iface on the base class routing the apis through the new class vfuncs.
512 lines
15 KiB
C
512 lines
15 KiB
C
/* gtkcellarea.c
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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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#include "gtkcelllayout.h"
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#include "gtkcellarea.h"
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/* GtkCellAreaClass */
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static void gtk_cell_area_real_get_preferred_height_for_width (GtkCellArea *area,
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GtkWidget *widget,
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gint width,
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gint *minimum_height,
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gint *natural_height);
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static void gtk_cell_area_real_get_preferred_width_for_height (GtkCellArea *area,
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GtkWidget *widget,
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gint height,
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gint *minimum_width,
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gint *natural_width);
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/* GtkCellLayoutIface */
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static void gtk_cell_area_cell_layout_init (GtkCellLayoutIface *iface);
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static void gtk_cell_area_pack_default (GtkCellLayout *cell_layout,
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GtkCellRenderer *renderer,
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gboolean expand);
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static void gtk_cell_area_clear (GtkCellLayout *cell_layout);
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static void gtk_cell_area_add_attribute (GtkCellLayout *cell_layout,
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GtkCellRenderer *renderer,
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const gchar *attribute,
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gint id);
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static void gtk_cell_area_clear_attributes (GtkCellLayout *cell_layout,
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GtkCellRenderer *renderer);
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static GList *gtk_cell_area_get_cells (GtkCellLayout *cell_layout);
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G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GtkCellArea, gtk_cell_area, G_TYPE_INITIALLY_UNOWNED,
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G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
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gtk_cell_area_cell_layout_init));
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static void
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gtk_cell_area_init (GtkCellArea *area)
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{
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}
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static void
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gtk_cell_area_class_init (GtkCellAreaClass *klass)
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{
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/* general */
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klass->add = NULL;
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klass->remove = NULL;
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klass->forall = NULL;
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klass->event = NULL;
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klass->render = NULL;
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/* attributes */
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klass->attribute_connect = NULL;
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klass->attribute_disconnect = NULL;
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klass->attribute_apply = NULL;
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klass->attribute_forall = NULL;
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/* geometry */
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klass->get_request_mode = NULL;
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klass->get_preferred_width = NULL;
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klass->get_preferred_height = NULL;
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klass->get_preferred_height_for_width = gtk_cell_area_real_get_preferred_height_for_width;
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klass->get_preferred_width_for_height = gtk_cell_area_real_get_preferred_width_for_height;
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}
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/*************************************************************
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* GtkCellLayoutIface *
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*************************************************************/
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static void
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gtk_cell_area_cell_layout_init (GtkCellLayoutIface *iface)
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{
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iface->pack_start = gtk_cell_area_pack_default;
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iface->pack_end = gtk_cell_area_pack_default;
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iface->clear = gtk_cell_area_clear;
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iface->add_attribute = gtk_cell_area_add_attribute;
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iface->clear_attributes = gtk_cell_area_clear_attributes;
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iface->get_cells = gtk_cell_area_get_cells;
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}
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static void
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gtk_cell_area_pack_default (GtkCellLayout *cell_layout,
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GtkCellRenderer *renderer,
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gboolean expand)
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{
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gtk_cell_area_add (GTK_CELL_AREA (cell_layout), renderer);
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}
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static void
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gtk_cell_area_clear (GtkCellLayout *cell_layout)
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{
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GtkCellArea *area = GTK_CELL_AREA (cell_layout);
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GList *l, *cells =
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gtk_cell_layout_get_cells (cell_layout);
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for (l = cells; l; l = l->next)
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{
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GtkCellRenderer *renderer = l->data;
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gtk_cell_area_remove (area, renderer);
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}
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g_list_free (cells);
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}
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static void
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gtk_cell_area_add_attribute (GtkCellLayout *cell_layout,
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GtkCellRenderer *renderer,
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const gchar *attribute,
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gint id)
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{
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gtk_cell_area_attribute_connect (GTK_CELL_AREA (cell_layout),
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renderer, attribute, id);
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}
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typedef struct {
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const gchar *attribute;
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gchar id;
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} CellAttribute;
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static void
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accum_attributes (GtkCellArea *area,
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GtkCellRenderer *renderer,
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const gchar *attribute,
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gint id,
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GList **accum)
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{
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CellAttribute *attrib = g_slice_new (CellAttribute);
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attrib->attribute = attribute;
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attrib->id = id;
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*accum = g_list_prepend (*accum, attrib);
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}
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static void
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gtk_cell_area_clear_attributes (GtkCellLayout *cell_layout,
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GtkCellRenderer *renderer)
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{
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GtkCellArea *area = GTK_CELL_AREA (cell_layout);
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GList *l, *attributes = NULL;
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/* Get a list of attributes so we dont modify the list inline */
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gtk_cell_area_attribute_forall (area, renderer,
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(GtkCellAttributeCallback)accum_attributes,
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&attributes);
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for (l = attributes; l; l = l->next)
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{
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CellAttribute *attrib = l->data;
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gtk_cell_area_attribute_disconnect (area, renderer,
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attrib->attribute, attrib->id);
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g_slice_free (CellAttribute, attrib);
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}
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g_list_free (attributes);
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}
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static void
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accum_cells (GtkCellRenderer *renderer,
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GList **accum)
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{
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*accum = g_list_prepend (*accum, renderer);
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}
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static GList *
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gtk_cell_area_get_cells (GtkCellLayout *cell_layout)
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{
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GList *cells = NULL;
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gtk_cell_area_forall (GTK_CELL_AREA (cell_layout),
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(GtkCellCallback)accum_cells,
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&cells);
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return g_list_reverse (cells);
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}
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/*************************************************************
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* GtkCellAreaClass *
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*************************************************************/
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static void
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gtk_cell_area_real_get_preferred_height_for_width (GtkCellArea *area,
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GtkWidget *widget,
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gint width,
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gint *minimum_height,
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gint *natural_height)
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{
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/* If the area doesnt do height-for-width, fallback on base preferred height */
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GTK_CELL_AREA_GET_CLASS (area)->get_preferred_width (area, widget, minimum_height, natural_height);
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}
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static void
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gtk_cell_area_real_get_preferred_width_for_height (GtkCellArea *area,
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GtkWidget *widget,
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gint height,
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gint *minimum_width,
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gint *natural_width)
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{
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/* If the area doesnt do width-for-height, fallback on base preferred width */
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GTK_CELL_AREA_GET_CLASS (area)->get_preferred_width (area, widget, minimum_width, natural_width);
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}
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/*************************************************************
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* API *
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*************************************************************/
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/* Basic methods */
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void
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gtk_cell_area_add (GtkCellArea *area,
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GtkCellRenderer *renderer)
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{
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GtkCellAreaClass *klass;
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g_return_if_fail (GTK_IS_CELL_AREA (area));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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klass = GTK_CELL_AREA_GET_CLASS (area);
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if (klass->add)
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klass->add (area, renderer);
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else
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g_warning ("GtkCellAreaClass::add not implemented for `%s'",
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g_type_name (G_TYPE_FROM_INSTANCE (area)));
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}
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void
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gtk_cell_area_remove (GtkCellArea *area,
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GtkCellRenderer *renderer)
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{
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GtkCellAreaClass *klass;
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g_return_if_fail (GTK_IS_CELL_AREA (area));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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klass = GTK_CELL_AREA_GET_CLASS (area);
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if (klass->remove)
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klass->remove (area, renderer);
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else
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g_warning ("GtkCellAreaClass::remove not implemented for `%s'",
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g_type_name (G_TYPE_FROM_INSTANCE (area)));
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}
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void
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gtk_cell_area_forall (GtkCellArea *area,
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GtkCellCallback callback,
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gpointer callback_data)
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{
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GtkCellAreaClass *klass;
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g_return_if_fail (GTK_IS_CELL_AREA (area));
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g_return_if_fail (callback != NULL);
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klass = GTK_CELL_AREA_GET_CLASS (area);
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if (klass->forall)
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klass->forall (area, callback, callback_data);
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else
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g_warning ("GtkCellAreaClass::forall not implemented for `%s'",
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g_type_name (G_TYPE_FROM_INSTANCE (area)));
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}
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gint
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gtk_cell_area_event (GtkCellArea *area,
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GtkWidget *widget,
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GdkEvent *event,
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const GdkRectangle *cell_area)
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{
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GtkCellAreaClass *klass;
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g_return_val_if_fail (GTK_IS_CELL_AREA (area), 0);
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g_return_val_if_fail (GTK_IS_WIDGET (widget), 0);
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g_return_val_if_fail (event != NULL, 0);
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g_return_val_if_fail (cell_area != NULL, 0);
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klass = GTK_CELL_AREA_GET_CLASS (area);
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if (klass->event)
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return klass->event (area, widget, event, cell_area);
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g_warning ("GtkCellAreaClass::event not implemented for `%s'",
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g_type_name (G_TYPE_FROM_INSTANCE (area)));
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return 0;
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}
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void
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gtk_cell_area_render (GtkCellArea *area,
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cairo_t *cr,
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GtkWidget *widget,
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const GdkRectangle *cell_area)
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{
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GtkCellAreaClass *klass;
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g_return_if_fail (GTK_IS_CELL_AREA (area));
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g_return_if_fail (cr != NULL);
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g_return_if_fail (GTK_IS_WIDGET (widget));
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g_return_if_fail (cell_area != NULL);
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klass = GTK_CELL_AREA_GET_CLASS (area);
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if (klass->render)
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klass->render (area, cr, widget, cell_area);
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else
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g_warning ("GtkCellAreaClass::render not implemented for `%s'",
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g_type_name (G_TYPE_FROM_INSTANCE (area)));
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}
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/* Attributes */
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void
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gtk_cell_area_attribute_connect (GtkCellArea *area,
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GtkCellRenderer *renderer,
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const gchar *attribute,
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gint id)
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{
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GtkCellAreaClass *klass;
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g_return_if_fail (GTK_IS_CELL_AREA (area));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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g_return_if_fail (attribute != NULL);
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klass = GTK_CELL_AREA_GET_CLASS (area);
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if (klass->attribute_connect)
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klass->attribute_connect (area, renderer, attribute, id);
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else
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g_warning ("GtkCellAreaClass::attribute_connect not implemented for `%s'",
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g_type_name (G_TYPE_FROM_INSTANCE (area)));
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}
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void
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gtk_cell_area_attribute_disconnect (GtkCellArea *area,
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GtkCellRenderer *renderer,
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const gchar *attribute,
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gint id)
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{
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GtkCellAreaClass *klass;
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g_return_if_fail (GTK_IS_CELL_AREA (area));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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g_return_if_fail (attribute != NULL);
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klass = GTK_CELL_AREA_GET_CLASS (area);
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if (klass->attribute_disconnect)
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klass->attribute_disconnect (area, renderer, attribute, id);
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else
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g_warning ("GtkCellAreaClass::attribute_disconnect not implemented for `%s'",
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g_type_name (G_TYPE_FROM_INSTANCE (area)));
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}
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void
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gtk_cell_area_attribute_apply (GtkCellArea *area,
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gint id,
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GValue *value)
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{
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GtkCellAreaClass *klass;
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g_return_if_fail (GTK_IS_CELL_AREA (area));
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g_return_if_fail (G_IS_VALUE (value));
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klass = GTK_CELL_AREA_GET_CLASS (area);
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if (klass->attribute_apply)
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klass->attribute_apply (area, id, value);
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else
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g_warning ("GtkCellAreaClass::attribute_apply not implemented for `%s'",
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g_type_name (G_TYPE_FROM_INSTANCE (area)));
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}
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void
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gtk_cell_area_attribute_forall (GtkCellArea *area,
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GtkCellRenderer *renderer,
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GtkCellAttributeCallback callback,
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gpointer user_data)
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{
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GtkCellAreaClass *klass;
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g_return_if_fail (GTK_IS_CELL_AREA (area));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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g_return_if_fail (callback != NULL);
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klass = GTK_CELL_AREA_GET_CLASS (area);
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if (klass->attribute_forall)
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klass->attribute_forall (area, renderer, callback, user_data);
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else
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g_warning ("GtkCellAreaClass::attribute_forall not implemented for `%s'",
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g_type_name (G_TYPE_FROM_INSTANCE (area)));
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}
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/* Geometry */
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GtkSizeRequestMode
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gtk_cell_area_get_request_mode (GtkCellArea *area)
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{
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GtkCellAreaClass *klass;
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g_return_val_if_fail (GTK_IS_CELL_AREA (area),
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GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH);
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klass = GTK_CELL_AREA_GET_CLASS (area);
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if (klass->get_request_mode)
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return klass->get_request_mode (area);
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g_warning ("GtkCellAreaClass::get_request_mode not implemented for `%s'",
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g_type_name (G_TYPE_FROM_INSTANCE (area)));
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return GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH;
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}
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void
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gtk_cell_area_get_preferred_width (GtkCellArea *area,
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GtkWidget *widget,
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gint *minimum_size,
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gint *natural_size)
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{
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GtkCellAreaClass *klass;
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g_return_if_fail (GTK_IS_CELL_AREA (area));
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g_return_if_fail (GTK_IS_WIDGET (widget));
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klass = GTK_CELL_AREA_GET_CLASS (area);
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if (klass->get_preferred_width)
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klass->get_preferred_width (area, widget, minimum_size, natural_size);
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else
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g_warning ("GtkCellAreaClass::get_preferred_width not implemented for `%s'",
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g_type_name (G_TYPE_FROM_INSTANCE (area)));
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}
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void
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gtk_cell_area_get_preferred_height_for_width (GtkCellArea *area,
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GtkWidget *widget,
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gint width,
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gint *minimum_height,
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gint *natural_height)
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{
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GtkCellAreaClass *klass;
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g_return_if_fail (GTK_IS_CELL_AREA (area));
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g_return_if_fail (GTK_IS_WIDGET (widget));
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klass = GTK_CELL_AREA_GET_CLASS (area);
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klass->get_preferred_height_for_width (area, widget, width, minimum_height, natural_height);
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}
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void
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gtk_cell_area_get_preferred_height (GtkCellArea *area,
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GtkWidget *widget,
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gint *minimum_size,
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gint *natural_size)
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{
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GtkCellAreaClass *klass;
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g_return_if_fail (GTK_IS_CELL_AREA (area));
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g_return_if_fail (GTK_IS_WIDGET (widget));
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klass = GTK_CELL_AREA_GET_CLASS (area);
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if (klass->get_preferred_height)
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klass->get_preferred_height (area, widget, minimum_size, natural_size);
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else
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g_warning ("GtkCellAreaClass::get_preferred_height not implemented for `%s'",
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g_type_name (G_TYPE_FROM_INSTANCE (area)));
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}
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void
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gtk_cell_area_get_preferred_width_for_height (GtkCellArea *area,
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GtkWidget *widget,
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gint height,
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gint *minimum_width,
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gint *natural_width)
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{
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GtkCellAreaClass *klass;
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g_return_if_fail (GTK_IS_CELL_AREA (area));
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g_return_if_fail (GTK_IS_WIDGET (widget));
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klass = GTK_CELL_AREA_GET_CLASS (area);
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klass->get_preferred_width_for_height (area, widget, height, minimum_width, natural_width);
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}
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