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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* Copyright (C) 2006-2007 Imendio AB
* Copyright (C) 2007-2011 Collabora Ltd.
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this program; if not, write to the
* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
* Boston, MA 02110-1301 USA
*
* Authors: Kristian Rietveld <kris@imendio.com>
*/
#include "config.h"
#include "empathy-cell-renderer-expander.h"
#include "empathy-utils.h"
#define GET_PRIV(obj) EMPATHY_GET_PRIV (obj, EmpathyCellRendererExpander)
typedef struct {
GtkExpanderStyle expander_style;
gint expander_size;
guint activatable : 1;
} EmpathyCellRendererExpanderPriv;
enum {
PROP_0,
PROP_EXPANDER_STYLE,
PROP_EXPANDER_SIZE,
PROP_ACTIVATABLE
};
static void empathy_cell_renderer_expander_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec);
static void empathy_cell_renderer_expander_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec);
static void empathy_cell_renderer_expander_finalize (GObject *object);
static void empathy_cell_renderer_expander_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
const GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height);
static void empathy_cell_renderer_expander_render (GtkCellRenderer *cell,
cairo_t *cr,
GtkWidget *widget,
const GdkRectangle *background_area,
const GdkRectangle *cell_area,
GtkCellRendererState flags);
static gboolean empathy_cell_renderer_expander_activate (GtkCellRenderer *cell,
GdkEvent *event,
GtkWidget *widget,
const gchar *path,
const GdkRectangle *background_area,
const GdkRectangle *cell_area,
GtkCellRendererState flags);
G_DEFINE_TYPE (EmpathyCellRendererExpander, empathy_cell_renderer_expander, GTK_TYPE_CELL_RENDERER)
static void
empathy_cell_renderer_expander_init (EmpathyCellRendererExpander *expander)
{
EmpathyCellRendererExpanderPriv *priv = G_TYPE_INSTANCE_GET_PRIVATE (expander,
EMPATHY_TYPE_CELL_RENDERER_EXPANDER, EmpathyCellRendererExpanderPriv);
expander->priv = priv;
priv->expander_style = GTK_EXPANDER_COLLAPSED;
priv->expander_size = 12;
priv->activatable = TRUE;
g_object_set (expander,
"xpad", 2,
"ypad", 2,
"mode", GTK_CELL_RENDERER_MODE_ACTIVATABLE,
NULL);
}
static void
empathy_cell_renderer_expander_class_init (EmpathyCellRendererExpanderClass *klass)
{
GObjectClass *object_class;
GtkCellRendererClass *cell_class;
object_class = G_OBJECT_CLASS (klass);
cell_class = GTK_CELL_RENDERER_CLASS (klass);
object_class->finalize = empathy_cell_renderer_expander_finalize;
object_class->get_property = empathy_cell_renderer_expander_get_property;
object_class->set_property = empathy_cell_renderer_expander_set_property;
cell_class->get_size = empathy_cell_renderer_expander_get_size;
cell_class->render = empathy_cell_renderer_expander_render;
cell_class->activate = empathy_cell_renderer_expander_activate;
g_object_class_install_property (object_class,
PROP_EXPANDER_STYLE,
g_param_spec_enum ("expander-style",
"Expander Style",
"Style to use when painting the expander",
GTK_TYPE_EXPANDER_STYLE,
GTK_EXPANDER_COLLAPSED,
G_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_EXPANDER_SIZE,
g_param_spec_int ("expander-size",
"Expander Size",
"The size of the expander",
0,
G_MAXINT,
12,
G_PARAM_READWRITE));
g_object_class_install_property (object_class,
PROP_ACTIVATABLE,
g_param_spec_boolean ("activatable",
"Activatable",
"The expander can be activated",
TRUE,
G_PARAM_READWRITE));
g_type_class_add_private (object_class, sizeof (EmpathyCellRendererExpanderPriv));
}
static void
empathy_cell_renderer_expander_get_property (GObject *object,
guint param_id,
GValue *value,
GParamSpec *pspec)
{
EmpathyCellRendererExpander *expander;
EmpathyCellRendererExpanderPriv *priv;
expander = EMPATHY_CELL_RENDERER_EXPANDER (object);
priv = GET_PRIV (expander);
switch (param_id) {
case PROP_EXPANDER_STYLE:
g_value_set_enum (value, priv->expander_style);
break;
case PROP_EXPANDER_SIZE:
g_value_set_int (value, priv->expander_size);
break;
case PROP_ACTIVATABLE:
g_value_set_boolean (value, priv->activatable);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
static void
empathy_cell_renderer_expander_set_property (GObject *object,
guint param_id,
const GValue *value,
GParamSpec *pspec)
{
EmpathyCellRendererExpander *expander;
EmpathyCellRendererExpanderPriv *priv;
expander = EMPATHY_CELL_RENDERER_EXPANDER (object);
priv = GET_PRIV (expander);
switch (param_id) {
case PROP_EXPANDER_STYLE:
priv->expander_style = g_value_get_enum (value);
break;
case PROP_EXPANDER_SIZE:
priv->expander_size = g_value_get_int (value);
break;
case PROP_ACTIVATABLE:
priv->activatable = g_value_get_boolean (value);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, param_id, pspec);
break;
}
}
static void
empathy_cell_renderer_expander_finalize (GObject *object)
{
(* G_OBJECT_CLASS (empathy_cell_renderer_expander_parent_class)->finalize) (object);
}
GtkCellRenderer *
empathy_cell_renderer_expander_new (void)
{
return g_object_new (EMPATHY_TYPE_CELL_RENDERER_EXPANDER, NULL);
}
static void
empathy_cell_renderer_expander_get_size (GtkCellRenderer *cell,
GtkWidget *widget,
const GdkRectangle *cell_area,
gint *x_offset,
gint *y_offset,
gint *width,
gint *height)
{
EmpathyCellRendererExpander *expander;
EmpathyCellRendererExpanderPriv *priv;
gfloat xalign, yalign;
guint xpad, ypad;
expander = (EmpathyCellRendererExpander *) cell;
priv = GET_PRIV (expander);
g_object_get (cell,
"xalign", &xalign,
"yalign", &yalign,
"xpad", &xpad,
"ypad", &ypad,
NULL);
if (cell_area) {
if (x_offset) {
*x_offset = xalign * (cell_area->width - (priv->expander_size + (2 * xpad)));
*x_offset = MAX (*x_offset, 0);
}
if (y_offset) {
*y_offset = yalign * (cell_area->height - (priv->expander_size + (2 * ypad)));
*y_offset = MAX (*y_offset, 0);
}
} else {
if (x_offset)
*x_offset = 0;
if (y_offset)
*y_offset = 0;
}
if (width)
*width = xpad * 2 + priv->expander_size;
if (height)
*height = ypad * 2 + priv->expander_size;
}
static void
empathy_cell_renderer_expander_render (GtkCellRenderer *cell,
cairo_t *cr,
GtkWidget *widget,
const GdkRectangle *background_area,
const GdkRectangle *cell_area,
GtkCellRendererState flags)
{
EmpathyCellRendererExpander *expander;
EmpathyCellRendererExpanderPriv *priv;
gint x_offset, y_offset;
guint xpad, ypad;
GtkStyleContext *style;
GtkStateFlags state;
expander = (EmpathyCellRendererExpander *) cell;
priv = GET_PRIV (expander);
empathy_cell_renderer_expander_get_size (cell, widget,
(GdkRectangle *) cell_area,
&x_offset, &y_offset,
NULL, NULL);
g_object_get (cell,
"xpad", &xpad,
"ypad", &ypad,
NULL);
style = gtk_widget_get_style_context (widget);
gtk_style_context_save (style);
gtk_style_context_add_class (style, GTK_STYLE_CLASS_EXPANDER);
state = gtk_cell_renderer_get_state (cell, widget, flags);
if (priv->expander_style == GTK_EXPANDER_COLLAPSED)
state |= GTK_STATE_FLAG_NORMAL;
else
state |= GTK_STATE_FLAG_ACTIVE;
gtk_style_context_set_state (style, state);
gtk_render_expander (style,
cr,
cell_area->x + x_offset + xpad,
cell_area->y + y_offset + ypad,
priv->expander_size,
priv->expander_size);
gtk_style_context_restore (style);
}
static gboolean
empathy_cell_renderer_expander_activate (GtkCellRenderer *cell,
GdkEvent *event,
GtkWidget *widget,
const gchar *path_string,
const GdkRectangle *background_area,
const GdkRectangle *cell_area,
GtkCellRendererState flags)
{
EmpathyCellRendererExpanderPriv *priv;
GtkTreePath *path;
priv = GET_PRIV (cell);
if (!GTK_IS_TREE_VIEW (widget) || !priv->activatable)
return FALSE;
path = gtk_tree_path_new_from_string (path_string);
if (gtk_tree_path_get_depth (path) > 1) {
gtk_tree_path_free (path);
return TRUE;
}
if (gtk_tree_view_row_expanded (GTK_TREE_VIEW (widget), path)) {
gtk_tree_view_collapse_row (GTK_TREE_VIEW (widget), path);
} else {
gtk_tree_view_expand_row (GTK_TREE_VIEW (widget), path, FALSE);
}
gtk_tree_path_free (path);
return TRUE;
}
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