464 lines
14 KiB
C
464 lines
14 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 "gtkorientable.h"
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#include "gtkcelllayout.h"
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#include "gtkcellareabox.h"
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/* GObjectClass */
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static void gtk_cell_area_box_finalize (GObject *object);
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static void gtk_cell_area_box_dispose (GObject *object);
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static void gtk_cell_area_box_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_cell_area_box_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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/* GtkCellAreaClass */
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static void gtk_cell_area_box_add (GtkCellArea *area,
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GtkCellRenderer *renderer);
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static void gtk_cell_area_box_remove (GtkCellArea *area,
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GtkCellRenderer *renderer);
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static void gtk_cell_area_box_forall (GtkCellArea *area,
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GtkCellCallback callback,
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gpointer callback_data);
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static gint gtk_cell_area_box_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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static void gtk_cell_area_box_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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static GtkSizeRequestMode gtk_cell_area_box_get_request_mode (GtkCellArea *area);
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static void gtk_cell_area_box_get_preferred_width (GtkCellArea *area,
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GtkWidget *widget,
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gint *minimum_width,
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gint *natural_width);
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static void gtk_cell_area_box_get_preferred_height (GtkCellArea *area,
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GtkWidget *widget,
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gint *minimum_height,
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gint *natural_height);
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static void gtk_cell_area_box_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_box_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_box_cell_layout_init (GtkCellLayoutIface *iface);
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static void gtk_cell_area_box_layout_pack_start (GtkCellLayout *cell_layout,
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GtkCellRenderer *renderer,
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gboolean expand);
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static void gtk_cell_area_box_layout_pack_end (GtkCellLayout *cell_layout,
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GtkCellRenderer *renderer,
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gboolean expand);
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static void gtk_cell_area_box_layout_reorder (GtkCellLayout *cell_layout,
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GtkCellRenderer *renderer,
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gint position);
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/* CellInfo metadata handling */
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typedef struct {
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GtkCellRenderer *renderer;
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guint expand : 1;
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guint pack : 1;
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} CellInfo;
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static CellInfo *cell_info_new (GtkCellRenderer *renderer,
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gboolean expand,
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GtkPackType pack);
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static void cell_info_free (CellInfo *info);
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static gint cell_info_find (CellInfo *info,
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GtkCellRenderer *renderer);
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struct _GtkCellAreaBoxPrivate
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{
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GtkOrientation orientation;
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GList *cells;
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};
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enum {
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PROP_0,
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PROP_ORIENTATION
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};
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G_DEFINE_TYPE_WITH_CODE (GtkCellAreaBox, gtk_cell_area_box, GTK_TYPE_CELL_AREA,
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G_IMPLEMENT_INTERFACE (GTK_TYPE_CELL_LAYOUT,
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gtk_cell_area_box_cell_layout_init)
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G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE, NULL));
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static void
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gtk_cell_area_box_init (GtkCellAreaBox *box)
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{
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GtkCellAreaBoxPrivate *priv;
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box->priv = G_TYPE_INSTANCE_GET_PRIVATE (box,
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GTK_TYPE_CELL_AREA_BOX,
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GtkCellAreaBoxPrivate);
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priv = box->priv;
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priv->orientation = GTK_ORIENTATION_HORIZONTAL;
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priv->cells = NULL;
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}
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static void
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gtk_cell_area_box_class_init (GtkCellAreaBoxClass *class)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (class);
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GtkCellAreaClass *area_class = GTK_CELL_AREA_CLASS (class);
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/* GObjectClass */
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object_class->finalize = gtk_cell_area_box_finalize;
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object_class->dispose = gtk_cell_area_box_dispose;
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object_class->set_property = gtk_cell_area_box_set_property;
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object_class->get_property = gtk_cell_area_box_get_property;
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/* GtkCellAreaClass */
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area_class->add = gtk_cell_area_box_add;
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area_class->remove = gtk_cell_area_box_remove;
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area_class->forall = gtk_cell_area_box_forall;
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area_class->event = gtk_cell_area_box_event;
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area_class->render = gtk_cell_area_box_render;
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area_class->get_request_mode = gtk_cell_area_box_get_request_mode;
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area_class->get_preferred_width = gtk_cell_area_box_get_preferred_width;
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area_class->get_preferred_height = gtk_cell_area_box_get_preferred_height;
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area_class->get_preferred_height_for_width = gtk_cell_area_box_get_preferred_height_for_width;
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area_class->get_preferred_width_for_height = gtk_cell_area_box_get_preferred_width_for_height;
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g_object_class_override_property (object_class, PROP_ORIENTATION, "orientation");
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g_type_class_add_private (object_class, sizeof (GtkCellAreaBoxPrivate));
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}
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/*************************************************************
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* CellInfo Basics *
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*************************************************************/
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static CellInfo *
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cell_info_new (GtkCellRenderer *renderer,
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gboolean expand,
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GtkPackType pack)
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{
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CellInfo *info = g_slice_new (CellInfo);
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info->renderer = g_object_ref_sink (renderer);
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info->expand = expand;
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info->pack = pack;
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return info;
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}
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static void
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cell_info_free (CellInfo *info)
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{
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g_object_unref (info->renderer);
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g_slice_free (CellInfo, info);
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}
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static gint
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cell_info_find (CellInfo *info,
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GtkCellRenderer *renderer)
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{
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return (info->renderer == renderer) ? 0 : -1;
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}
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/*************************************************************
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* GObjectClass *
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*************************************************************/
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static void
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gtk_cell_area_box_finalize (GObject *object)
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{
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G_OBJECT_CLASS (gtk_cell_area_box_parent_class)->finalize (object);
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}
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static void
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gtk_cell_area_box_dispose (GObject *object)
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{
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G_OBJECT_CLASS (gtk_cell_area_box_parent_class)->dispose (object);
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}
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static void
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gtk_cell_area_box_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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}
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static void
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gtk_cell_area_box_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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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_box_add (GtkCellArea *area,
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GtkCellRenderer *renderer)
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{
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gtk_cell_area_box_pack_start (GTK_CELL_AREA_BOX (area),
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renderer, FALSE);
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}
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static void
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gtk_cell_area_box_remove (GtkCellArea *area,
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GtkCellRenderer *renderer)
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{
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GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
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GtkCellAreaBoxPrivate *priv = box->priv;
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GList *node;
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node = g_list_find_custom (priv->cells, renderer,
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(GCompareFunc)cell_info_find);
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if (node)
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{
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CellInfo *info = node->data;
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cell_info_free (info);
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priv->cells = g_list_delete_link (priv->cells, node);
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}
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else
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g_warning ("Trying to remove a cell renderer that is not present GtkCellAreaBox");
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}
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static void
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gtk_cell_area_box_forall (GtkCellArea *area,
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GtkCellCallback callback,
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gpointer callback_data)
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{
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GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
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GtkCellAreaBoxPrivate *priv = box->priv;
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GList *list;
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for (list = priv->cells; list; list = list->next)
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{
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CellInfo *info = list->data;
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callback (info->renderer, callback_data);
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}
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}
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static gint
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gtk_cell_area_box_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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return 0;
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}
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static void
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gtk_cell_area_box_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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}
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static GtkSizeRequestMode
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gtk_cell_area_box_get_request_mode (GtkCellArea *area)
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{
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GtkCellAreaBox *box = GTK_CELL_AREA_BOX (area);
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GtkCellAreaBoxPrivate *priv = box->priv;
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return (priv->orientation) == GTK_ORIENTATION_HORIZONTAL ?
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GTK_SIZE_REQUEST_HEIGHT_FOR_WIDTH :
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GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT;
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}
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static void
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gtk_cell_area_box_get_preferred_width (GtkCellArea *area,
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GtkWidget *widget,
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gint *minimum_width,
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gint *natural_width)
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{
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}
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static void
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gtk_cell_area_box_get_preferred_height (GtkCellArea *area,
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GtkWidget *widget,
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gint *minimum_height,
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gint *natural_height)
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{
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}
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static void
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gtk_cell_area_box_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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}
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static void
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gtk_cell_area_box_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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}
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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_box_cell_layout_init (GtkCellLayoutIface *iface)
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{
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iface->pack_start = gtk_cell_area_box_layout_pack_start;
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iface->pack_end = gtk_cell_area_box_layout_pack_end;
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iface->reorder = gtk_cell_area_box_layout_reorder;
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}
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static void
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gtk_cell_area_box_layout_pack_start (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_box_pack_start (GTK_CELL_AREA_BOX (cell_layout), renderer, expand);
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}
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static void
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gtk_cell_area_box_layout_pack_end (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_box_pack_end (GTK_CELL_AREA_BOX (cell_layout), renderer, expand);
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}
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static void
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gtk_cell_area_box_layout_reorder (GtkCellLayout *cell_layout,
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GtkCellRenderer *renderer,
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gint position)
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{
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GtkCellAreaBox *box = GTK_CELL_AREA_BOX (cell_layout);
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GtkCellAreaBoxPrivate *priv = box->priv;
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GList *node;
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CellInfo *info;
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node = g_list_find_custom (priv->cells, renderer,
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(GCompareFunc)cell_info_find);
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if (node)
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{
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info = node->data;
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priv->cells = g_list_delete_link (priv->cells, node);
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priv->cells = g_list_insert (priv->cells, info, position);
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}
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}
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/*************************************************************
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* API *
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*************************************************************/
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GtkCellArea *
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gtk_cell_area_box_new (void)
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{
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return (GtkCellArea *)g_object_new (GTK_TYPE_CELL_AREA_BOX, NULL);
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}
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void
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gtk_cell_area_box_pack_start (GtkCellAreaBox *box,
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GtkCellRenderer *renderer,
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gboolean expand)
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{
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GtkCellAreaBoxPrivate *priv;
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CellInfo *info;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX (box));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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priv = box->priv;
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if (g_list_find_custom (priv->cells, renderer,
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(GCompareFunc)cell_info_find))
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{
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g_warning ("Refusing to add the same cell renderer to a GtkCellAreaBox twice");
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return;
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}
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info = cell_info_new (renderer, expand, GTK_PACK_START);
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priv->cells = g_list_append (priv->cells, info);
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}
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void
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gtk_cell_area_box_pack_end (GtkCellAreaBox *box,
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GtkCellRenderer *renderer,
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gboolean expand)
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{
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GtkCellAreaBoxPrivate *priv;
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CellInfo *info;
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g_return_if_fail (GTK_IS_CELL_AREA_BOX (box));
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g_return_if_fail (GTK_IS_CELL_RENDERER (renderer));
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priv = box->priv;
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if (g_list_find_custom (priv->cells, renderer,
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(GCompareFunc)cell_info_find))
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{
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g_warning ("Refusing to add the same cell renderer to a GtkCellArea twice");
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return;
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}
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info = cell_info_new (renderer, expand, GTK_PACK_END);
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priv->cells = g_list_append (priv->cells, info);
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}
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