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gimp/app/widgets/gimpdockseparator.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpdockseparator.c
* Copyright (C) 2005 Michael Natterer <mitch@gimp.org>
*
* 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., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "gimpdialogfactory.h"
#include "gimpdnd.h"
#include "gimphelp-ids.h"
#include "gimpdock.h"
#include "gimpdockable.h"
#include "gimpdockbook.h"
#include "gimpdockseparator.h"
#include "gimp-intl.h"
#define DEFAULT_HEIGHT 6
#define LABEL_PADDING 4
#define HELP_TEXT _("You can drop dockable dialogs here.")
static void gimp_dock_separator_style_set (GtkWidget *widget,
GtkStyle *prev_style);
static void gimp_dock_separator_size_allocate (GtkWidget *widget,
GtkAllocation *allocation);
static void gimp_dock_separator_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time);
static gboolean gimp_dock_separator_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static gboolean gimp_dock_separator_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
G_DEFINE_TYPE (GimpDockSeparator, gimp_dock_separator, GTK_TYPE_EVENT_BOX)
#define parent_class gimp_dock_separator_parent_class
static const GtkTargetEntry dialog_target_table[] = { GIMP_TARGET_DIALOG };
static void
gimp_dock_separator_class_init (GimpDockSeparatorClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->style_set = gimp_dock_separator_style_set;
widget_class->size_allocate = gimp_dock_separator_size_allocate;
widget_class->drag_leave = gimp_dock_separator_drag_leave;
widget_class->drag_motion = gimp_dock_separator_drag_motion;
widget_class->drag_drop = gimp_dock_separator_drag_drop;
gtk_widget_class_install_style_property (widget_class,
g_param_spec_int ("height",
NULL, NULL,
0, G_MAXINT,
DEFAULT_HEIGHT,
GIMP_PARAM_READABLE));
}
static void
gimp_dock_separator_init (GimpDockSeparator *separator)
{
separator->dock = NULL;
separator->label = NULL;
separator->frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (separator->frame), GTK_SHADOW_OUT);
gtk_container_add (GTK_CONTAINER (separator), separator->frame);
gtk_widget_show (separator->frame);
gimp_help_set_help_data (GTK_WIDGET (separator),
HELP_TEXT, GIMP_HELP_DOCK_SEPARATOR);
gtk_drag_dest_set (GTK_WIDGET (separator),
GTK_DEST_DEFAULT_ALL,
dialog_target_table, G_N_ELEMENTS (dialog_target_table),
GDK_ACTION_MOVE);
}
static void
gimp_dock_separator_style_set (GtkWidget *widget,
GtkStyle *prev_style)
{
gint height;
if (GTK_WIDGET_CLASS (parent_class)->style_set)
GTK_WIDGET_CLASS (parent_class)->style_set (widget, prev_style);
gtk_widget_style_get (widget, "height", &height, NULL);
gtk_widget_set_size_request (widget, -1, height);
}
static void
gimp_dock_separator_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GimpDockSeparator *separator = GIMP_DOCK_SEPARATOR (widget);
GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
if (separator->label)
{
gint width = separator->frame->allocation.width - 2 * LABEL_PADDING;
gtk_widget_set_size_request (separator->label, width, -1);
}
}
static void
gimp_dock_separator_drag_leave (GtkWidget *widget,
GdkDragContext *context,
guint time)
{
if (GTK_WIDGET_CLASS (parent_class)->drag_leave)
GTK_WIDGET_CLASS (parent_class)->drag_leave (widget, context, time);
gtk_widget_modify_bg (widget, GTK_STATE_NORMAL, NULL);
}
static gboolean
gimp_dock_separator_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GdkColor *color;
if (GTK_WIDGET_CLASS (parent_class)->drag_motion)
GTK_WIDGET_CLASS (parent_class)->drag_motion (widget, context, x, y, time);
color = gtk_widget_get_style (widget)->bg + GTK_STATE_SELECTED;
gtk_widget_modify_bg (widget, GTK_STATE_NORMAL, color);
return FALSE;
}
static gboolean
gimp_dock_separator_drag_drop (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GimpDockSeparator *separator = GIMP_DOCK_SEPARATOR (widget);
GtkWidget *source;
if (GTK_WIDGET_CLASS (parent_class)->drag_drop)
GTK_WIDGET_CLASS (parent_class)->drag_drop (widget, context, x, y, time);
source = gtk_drag_get_source_widget (context);
if (source)
{
GimpDock *dock = separator->dock;
GimpDockable *dockable;
if (GIMP_IS_DOCKABLE (source))
dockable = GIMP_DOCKABLE (source);
else
dockable = g_object_get_data (G_OBJECT (source), "gimp-dockable");
if (dockable)
{
GtkWidget *dockbook;
GList *children;
gint index;
g_object_set_data (G_OBJECT (dockable),
"gimp-dock-drag-widget", NULL);
children = gtk_container_get_children (GTK_CONTAINER (widget->parent));
index = g_list_index (children, widget);
g_list_free (children);
if (index == 0)
index = 0;
else if (index == 2)
index = -1;
/* if dropping to the same dock, take care that we don't try
* to reorder the *only* dockable in the dock
*/
if (dockable->dockbook->dock == dock)
{
gint n_books;
gint n_dockables;
n_books = g_list_length (dock->dockbooks);
children =
gtk_container_get_children (GTK_CONTAINER (dockable->dockbook));
n_dockables = g_list_length (children);
g_list_free (children);
if (n_books == 1 && n_dockables == 1)
return TRUE; /* successfully do nothing */
}
g_object_ref (dockable);
gimp_dockbook_remove (dockable->dockbook, dockable);
dockbook = gimp_dockbook_new (dock->dialog_factory->menu_factory);
gimp_dock_add_book (dock, GIMP_DOCKBOOK (dockbook), index);
gimp_dockbook_add (GIMP_DOCKBOOK (dockbook), dockable, -1);
g_object_unref (dockable);
return TRUE;
}
}
return FALSE;
}
/* public functions */
GtkWidget *
gimp_dock_separator_new (GimpDock *dock)
{
GimpDockSeparator *separator;
g_return_val_if_fail (GIMP_IS_DOCK (dock), NULL);
separator = g_object_new (GIMP_TYPE_DOCK_SEPARATOR, NULL);
separator->dock = dock;
return GTK_WIDGET (separator);
}
void
gimp_dock_separator_set_show_label (GimpDockSeparator *separator,
gboolean show)
{
g_return_if_fail (GIMP_IS_DOCK_SEPARATOR (separator));
if (show && ! separator->label)
{
separator->label = gtk_label_new (HELP_TEXT);
gtk_misc_set_padding (GTK_MISC (separator->label),
LABEL_PADDING, LABEL_PADDING);
gtk_label_set_line_wrap (GTK_LABEL (separator->label), TRUE);
gtk_label_set_justify (GTK_LABEL (separator->label), GTK_JUSTIFY_CENTER);
gimp_label_set_attributes (GTK_LABEL (separator->label),
PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
-1);
gtk_container_add (GTK_CONTAINER (separator->frame), separator->label);
gtk_widget_show (separator->label);
gimp_help_set_help_data (GTK_WIDGET (separator),
NULL, GIMP_HELP_DOCK_SEPARATOR);
}
else if (! show && separator->label)
{
gtk_container_remove (GTK_CONTAINER (separator->frame), separator->label);
separator->label = NULL;
gimp_help_set_help_data (GTK_WIDGET (separator),
HELP_TEXT, GIMP_HELP_DOCK_SEPARATOR);
}
}
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