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/* Copyright (c) 2013 Andrzej <ndrwrdck@gmail.com>
*
* 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 Library 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
/*
* This file implements a container class holding an icon and a label
* for use in XfceIndicatorButton.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <glib.h>
#include <gtk/gtk.h>
#include <libxfce4panel/libxfce4panel.h>
#include "indicator-button-box.h"
#define ICON_SIZE 22
#define SPACING 2
static void indicator_button_box_finalize (GObject *object);
static void indicator_button_box_get_preferred_width (GtkWidget *widget,
gint *minimum_width,
gint *natural_width);
static void indicator_button_box_get_preferred_width_for_height (GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width);
static void indicator_button_box_get_preferred_height (GtkWidget *widget,
gint *minimum_height,
gint *natural_height);
static void indicator_button_box_get_preferred_height_for_width (GtkWidget *widget,
gint width,
gint *minimum_height,
gint *natural_height);
static void indicator_button_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void indicator_button_box_add (GtkContainer *container,
GtkWidget *child);
static void indicator_button_box_remove (GtkContainer *container,
GtkWidget *child);
static GType indicator_button_box_child_type (GtkContainer *container);
static void indicator_button_box_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data);
struct _IndicatorButtonBox
{
GtkContainer __parent__;
IndicatorConfig *config;
GtkWidget *label;
GtkWidget *icon;
gboolean cached;
gboolean is_small;
gint pixbuf_w;
gint pixbuf_h;
GtkOrientation orientation;
gulong configuration_changed_id;
};
struct _IndicatorButtonBoxClass
{
GtkContainerClass __parent__;
};
G_DEFINE_TYPE (IndicatorButtonBox, indicator_button_box, GTK_TYPE_CONTAINER)
static void
indicator_button_box_class_init (IndicatorButtonBoxClass *klass)
{
GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
GtkContainerClass *container_class;
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = indicator_button_box_finalize;
widget_class = GTK_WIDGET_CLASS (klass);
widget_class->get_preferred_width = indicator_button_box_get_preferred_width;
widget_class->get_preferred_width_for_height = indicator_button_box_get_preferred_width_for_height;
widget_class->get_preferred_height = indicator_button_box_get_preferred_height;
widget_class->get_preferred_height_for_width = indicator_button_box_get_preferred_height_for_width;
widget_class->size_allocate = indicator_button_box_size_allocate;
container_class = GTK_CONTAINER_CLASS (klass);
container_class->add = indicator_button_box_add;
container_class->remove = indicator_button_box_remove;
container_class->child_type = indicator_button_box_child_type;
container_class->forall = indicator_button_box_forall;
}
static void
indicator_button_box_init (IndicatorButtonBox *box)
{
gtk_widget_set_has_window (GTK_WIDGET (box), FALSE);
gtk_widget_set_can_focus(GTK_WIDGET(box), FALSE);
gtk_widget_set_can_default (GTK_WIDGET (box), FALSE);
gtk_container_set_border_width(GTK_CONTAINER(box), 0);
gtk_widget_set_name (GTK_WIDGET (box), "indicator-button-box");
box->config = NULL;
box->label = NULL;
box->icon = NULL;
box->cached = FALSE;
box->is_small = TRUE;
box->pixbuf_w = -1;
box->pixbuf_h = -1;
box->orientation = GTK_ORIENTATION_HORIZONTAL;
box->configuration_changed_id = 0;
}
static void
indicator_button_box_finalize (GObject *object)
{
IndicatorButtonBox *box = XFCE_INDICATOR_BUTTON_BOX (object);
indicator_button_box_disconnect_signals (box);
G_OBJECT_CLASS (indicator_button_box_parent_class)->finalize (object);
}
static GType
indicator_button_box_child_type (GtkContainer *container)
{
return GTK_TYPE_WIDGET;
}
static void
indicator_button_box_forall (GtkContainer *container,
gboolean include_internals,
GtkCallback callback,
gpointer callback_data)
{
IndicatorButtonBox *box = XFCE_INDICATOR_BUTTON_BOX (container);
if (box->icon != NULL)
(*callback) (box->icon, callback_data);
if (box->label != NULL)
(*callback) (box->label, callback_data);
}
static void
indicator_button_box_add (GtkContainer *container,
GtkWidget *child)
{
IndicatorButtonBox *box = XFCE_INDICATOR_BUTTON_BOX (container);
g_return_if_fail (XFCE_IS_INDICATOR_BUTTON_BOX (box));
g_return_if_fail (gtk_widget_get_parent (GTK_WIDGET (child)) == NULL);
gtk_widget_set_parent (child, GTK_WIDGET (box));
gtk_widget_queue_resize (GTK_WIDGET (container));
}
static void
indicator_button_box_remove (GtkContainer *container,
GtkWidget *child)
{
IndicatorButtonBox *box = XFCE_INDICATOR_BUTTON_BOX (container);
g_return_if_fail (XFCE_IS_INDICATOR_BUTTON_BOX (box));
gtk_widget_unparent (child);
gtk_widget_queue_resize (GTK_WIDGET (container));
}
static void
indicator_button_box_label_changed (GtkLabel *label,
GParamSpec *pspec,
IndicatorButtonBox *box)
{
g_return_if_fail (XFCE_IS_INDICATOR_BUTTON_BOX (box));
g_return_if_fail (GTK_IS_LABEL (label));
box->cached = FALSE;
gtk_widget_queue_resize (GTK_WIDGET (box));
}
void
indicator_button_box_set_label (IndicatorButtonBox *box,
GtkLabel *label)
{
g_return_if_fail (XFCE_IS_INDICATOR_BUTTON_BOX (box));
g_return_if_fail (GTK_IS_LABEL (label));
if (box->label != NULL)
gtk_container_remove (GTK_CONTAINER (box), box->label);
box->label = GTK_WIDGET (label);
g_signal_connect(G_OBJECT(box->label), "notify::label",
G_CALLBACK(indicator_button_box_label_changed), box);
g_signal_connect(G_OBJECT(box->label), "notify::visible",
G_CALLBACK(indicator_button_box_label_changed), box);
box->is_small = FALSE;
box->cached = FALSE;
gtk_container_add (GTK_CONTAINER (box), box->label);
gtk_widget_show (box->label);
}
static void
indicator_button_box_icon_changed (GtkImage *icon,
GParamSpec *pspec,
IndicatorButtonBox *box)
{
g_return_if_fail (XFCE_IS_INDICATOR_BUTTON_BOX (box));
g_return_if_fail (GTK_IS_IMAGE (icon));
box->cached = FALSE;
gtk_widget_queue_resize (GTK_WIDGET (box));
}
void
indicator_button_box_set_image (IndicatorButtonBox *box,
GtkImage *image)
{
g_return_if_fail (XFCE_IS_INDICATOR_BUTTON_BOX (box));
g_return_if_fail (GTK_IS_IMAGE (image));
/* g_debug ("indicator-button-box set image, image=%x", (uint) image); */
if (box->icon != NULL)
gtk_container_remove (GTK_CONTAINER (box), box->icon);
box->icon = GTK_WIDGET (image);
g_signal_connect(G_OBJECT(box->icon), "notify::pixbuf",
G_CALLBACK(indicator_button_box_icon_changed), box);
box->cached = FALSE;
gtk_container_add (GTK_CONTAINER (box), box->icon);
gtk_widget_show (box->icon);
}
static void
indicator_button_box_configuration_changed (IndicatorButtonBox *box,
IndicatorConfig *config)
{
g_return_if_fail (XFCE_IS_INDICATOR_BUTTON_BOX (box));
g_return_if_fail (XFCE_IS_INDICATOR_CONFIG (config));
box->cached = FALSE;
gtk_widget_queue_resize (GTK_WIDGET (box));
}
GtkWidget *
indicator_button_box_new (IndicatorConfig *config)
{
IndicatorButtonBox *box = g_object_new (XFCE_TYPE_INDICATOR_BUTTON_BOX, NULL);
g_return_val_if_fail (XFCE_IS_INDICATOR_CONFIG (config), NULL);
box->config = config;
box->configuration_changed_id =
g_signal_connect_swapped (G_OBJECT (box->config), "configuration-changed",
G_CALLBACK (indicator_button_box_configuration_changed), box);
return GTK_WIDGET (box);
}
void
indicator_button_box_disconnect_signals (IndicatorButtonBox *box)
{
g_return_if_fail (XFCE_IS_INDICATOR_BUTTON_BOX (box));
if (box->configuration_changed_id != 0)
{
g_signal_handler_disconnect (box->config, box->configuration_changed_id);
box->configuration_changed_id = 0;
}
}
gboolean
indicator_button_box_is_small (IndicatorButtonBox *box)
{
g_return_val_if_fail (XFCE_IS_INDICATOR_BUTTON_BOX (box), FALSE);
if (box->cached)
return box->is_small;
// check sizes
box->pixbuf_w = -1;
box->pixbuf_h = -1;
box->orientation = indicator_config_get_panel_orientation (box->config);
if (box->label != NULL &&
gtk_widget_get_visible (box->label) &&
g_strcmp0 (gtk_label_get_label (GTK_LABEL (box->label)), "") != 0)
{
box->is_small = FALSE;
if (box->orientation == GTK_ORIENTATION_VERTICAL &&
indicator_config_get_orientation (box->config) == GTK_ORIENTATION_HORIZONTAL &&
indicator_config_get_align_left (box->config))
{
box->orientation = GTK_ORIENTATION_HORIZONTAL;
gtk_label_set_xalign (GTK_LABEL (box->label), 0.0);
gtk_label_set_yalign (GTK_LABEL (box->label), 0.5);
gtk_label_set_ellipsize (GTK_LABEL (box->label), PANGO_ELLIPSIZE_END);
}
else
{
gtk_label_set_xalign (GTK_LABEL (box->label), 0.5);
gtk_label_set_yalign (GTK_LABEL (box->label), 0.5);
gtk_label_set_ellipsize (GTK_LABEL (box->label), PANGO_ELLIPSIZE_NONE);
}
gtk_label_set_angle (GTK_LABEL (box->label),
(indicator_config_get_orientation (box->config) == GTK_ORIENTATION_VERTICAL) ?
-90 : 0);
}
else if (box->icon != NULL &&
gtk_image_get_storage_type (GTK_IMAGE (box->icon)) == GTK_IMAGE_PIXBUF)
{
GdkPixbuf *pixbuf = gtk_image_get_pixbuf (GTK_IMAGE (box->icon));
box->pixbuf_w = gdk_pixbuf_get_width (pixbuf);
box->pixbuf_h = gdk_pixbuf_get_height (pixbuf);
// allow some wiggle room for small nearly square icons
box->is_small = (box->pixbuf_w <= ICON_SIZE+4 && box->pixbuf_h <= ICON_SIZE+4);
}
else
{
box->is_small = TRUE;
}
box->cached = TRUE;
return box->is_small;
}
static void
indicator_button_box_get_preferred_width (GtkWidget *widget,
gint *minimum_width,
gint *natural_width)
{
IndicatorButtonBox *box = XFCE_INDICATOR_BUTTON_BOX (widget);
gint min_size, nat_size;
if (indicator_button_box_is_small (box)) // check & cache
{
min_size = nat_size = ICON_SIZE;
}
else if (box->label != NULL)
{
gtk_widget_get_preferred_width (box->label, &min_size, &nat_size);
if (box->icon != NULL &&
gtk_image_get_storage_type (GTK_IMAGE (box->icon)) != GTK_IMAGE_EMPTY &&
box->orientation == GTK_ORIENTATION_HORIZONTAL)
{
min_size = min_size + ICON_SIZE + 2 * SPACING;
nat_size = nat_size + ICON_SIZE + 2 * SPACING;
}
else
{
min_size = MAX (min_size + 2 * SPACING, ICON_SIZE);
nat_size = MAX (nat_size + 2 * SPACING, ICON_SIZE);
}
}
else // rectangular icon
{
min_size = nat_size = MAX (box->pixbuf_w, ICON_SIZE);
}
if (minimum_width != NULL)
*minimum_width = min_size;
if (natural_width != NULL)
*natural_width = nat_size;
}
static void
indicator_button_box_get_preferred_width_for_height (GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width)
{
indicator_button_box_get_preferred_width (widget, minimum_width, natural_width);
}
static void
indicator_button_box_get_preferred_height (GtkWidget *widget,
gint *minimum_height,
gint *natural_height)
{
IndicatorButtonBox *box = XFCE_INDICATOR_BUTTON_BOX (widget);
gint min_size, nat_size;
if (indicator_button_box_is_small (box)) // check & cache
{
min_size = nat_size = ICON_SIZE;
}
else if (box->label != NULL)
{
gtk_widget_get_preferred_height (box->label, &min_size, &nat_size);
if (box->icon != NULL &&
gtk_image_get_storage_type (GTK_IMAGE (box->icon)) != GTK_IMAGE_EMPTY &&
box->orientation == GTK_ORIENTATION_VERTICAL)
{
min_size = min_size + ICON_SIZE + SPACING;
nat_size = nat_size + ICON_SIZE + SPACING;
}
else
{
min_size = MAX (min_size, ICON_SIZE);
nat_size = MAX (nat_size, ICON_SIZE);
}
}
else // rectangular icon
{
min_size = nat_size = MAX (box->pixbuf_h, ICON_SIZE);
}
if (minimum_height != NULL)
*minimum_height = min_size;
if (natural_height != NULL)
*natural_height = nat_size;
}
static void
indicator_button_box_get_preferred_height_for_width (GtkWidget *widget,
gint width,
gint *minimum_height,
gint *natural_height)
{
indicator_button_box_get_preferred_height (widget, minimum_height, natural_height);
}
static void
indicator_button_box_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
IndicatorButtonBox *box = XFCE_INDICATOR_BUTTON_BOX (widget);
gint x, y, width, height;
GtkAllocation icon_alloc, label_alloc;
GtkRequisition requisition;
gtk_widget_set_allocation (widget, allocation);
icon_alloc.x = label_alloc.x = x = allocation->x;
icon_alloc.y = label_alloc.y = y = allocation->y;
icon_alloc.width = label_alloc.width = width = allocation->width;
icon_alloc.height = label_alloc.height = height = allocation->height;
indicator_button_box_is_small (box); // refresh cache
if (box->icon != NULL)
gtk_widget_get_preferred_size (box->icon, NULL, &requisition);
if (box->label != NULL)
gtk_widget_get_preferred_size (box->label, NULL, &requisition);
if (box->icon != NULL &&
gtk_image_get_storage_type (GTK_IMAGE (box->icon)) != GTK_IMAGE_EMPTY &&
box->label != NULL &&
!box->is_small)
{
if (box->orientation == GTK_ORIENTATION_HORIZONTAL)
{
icon_alloc.width = ICON_SIZE;
label_alloc.width = MAX (1, width - icon_alloc.width - SPACING);
label_alloc.x = x + icon_alloc.width + SPACING;
}
else
{
icon_alloc.height = ICON_SIZE;
label_alloc.height = MAX (1, height - icon_alloc.height - SPACING);
label_alloc.y = y + icon_alloc.height + SPACING;
}
gtk_widget_size_allocate (box->icon, &icon_alloc);
gtk_widget_size_allocate (box->label, &label_alloc);
}
else if (box->icon != NULL &&
gtk_image_get_storage_type (GTK_IMAGE (box->icon)) != GTK_IMAGE_EMPTY)
{
gtk_widget_size_allocate (box->icon, &icon_alloc);
}
else if (box->label != NULL)
{
gtk_widget_size_allocate (box->label, &label_alloc);
}
}
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