mirror of https://github.com/GNOME/gimp.git
587 lines
18 KiB
C
587 lines
18 KiB
C
/* The GIMP -- an image manipulation program
|
|
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
|
|
*
|
|
* gimplistitem.c
|
|
* Copyright (C) 2001 Michael Natterer
|
|
*
|
|
* 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 "widgets-types.h"
|
|
|
|
#include "core/gimpchannel.h"
|
|
#include "core/gimpcontainer.h"
|
|
#include "core/gimplayer.h"
|
|
#include "core/gimpmarshal.h"
|
|
#include "core/gimpviewable.h"
|
|
|
|
#include "gimpchannellistitem.h"
|
|
#include "gimpdnd.h"
|
|
#include "gimpdrawablelistitem.h"
|
|
#include "gimplayerlistitem.h"
|
|
#include "gimplistitem.h"
|
|
#include "gimppreview.h"
|
|
|
|
|
|
enum
|
|
{
|
|
SET_VIEWABLE,
|
|
SET_PREVIEW_SIZE,
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
|
|
static void gimp_list_item_class_init (GimpListItemClass *klass);
|
|
static void gimp_list_item_init (GimpListItem *list_item);
|
|
|
|
static void gimp_list_item_real_set_viewable (GimpListItem *list_item,
|
|
GimpViewable *viewable);
|
|
static void gimp_list_item_real_set_preview_size (GimpListItem *list_item);
|
|
|
|
static void gimp_list_item_draw (GtkWidget *widget,
|
|
GdkRectangle *area);
|
|
static void gimp_list_item_drag_leave (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
guint time);
|
|
static gboolean gimp_list_item_drag_motion (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
gint x,
|
|
gint y,
|
|
guint time);
|
|
static gboolean gimp_list_item_drag_drop (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
gint x,
|
|
gint y,
|
|
guint time);
|
|
|
|
static void gimp_list_item_name_changed (GimpViewable *viewable,
|
|
GimpListItem *list_item);
|
|
static GimpViewable * gimp_list_item_drag_viewable (GtkWidget *widget,
|
|
gpointer data);
|
|
|
|
|
|
static guint list_item_signals[LAST_SIGNAL] = { 0 };
|
|
|
|
static GtkListItemClass *parent_class = NULL;
|
|
|
|
|
|
GtkType
|
|
gimp_list_item_get_type (void)
|
|
{
|
|
static GtkType list_item_type = 0;
|
|
|
|
if (!list_item_type)
|
|
{
|
|
static const GtkTypeInfo list_item_info =
|
|
{
|
|
"GimpListItem",
|
|
sizeof (GimpListItem),
|
|
sizeof (GimpListItemClass),
|
|
(GtkClassInitFunc) gimp_list_item_class_init,
|
|
(GtkObjectInitFunc) gimp_list_item_init,
|
|
/* reserved_1 */ NULL,
|
|
/* reserved_2 */ NULL,
|
|
(GtkClassInitFunc) NULL,
|
|
};
|
|
|
|
list_item_type = gtk_type_unique (GTK_TYPE_LIST_ITEM, &list_item_info);
|
|
}
|
|
|
|
return list_item_type;
|
|
}
|
|
|
|
static void
|
|
gimp_list_item_class_init (GimpListItemClass *klass)
|
|
{
|
|
GtkObjectClass *object_class;
|
|
GtkWidgetClass *widget_class;
|
|
|
|
object_class = (GtkObjectClass *) klass;
|
|
widget_class = (GtkWidgetClass *) klass;
|
|
|
|
parent_class = gtk_type_class (GTK_TYPE_LIST_ITEM);
|
|
|
|
list_item_signals[SET_VIEWABLE] =
|
|
gtk_signal_new ("set_viewable",
|
|
GTK_RUN_FIRST,
|
|
object_class->type,
|
|
GTK_SIGNAL_OFFSET (GimpListItemClass,
|
|
set_viewable),
|
|
gtk_marshal_NONE__OBJECT,
|
|
GTK_TYPE_NONE, 1,
|
|
GIMP_TYPE_VIEWABLE);
|
|
|
|
list_item_signals[SET_PREVIEW_SIZE] =
|
|
gtk_signal_new ("set_preview_size",
|
|
GTK_RUN_FIRST,
|
|
object_class->type,
|
|
GTK_SIGNAL_OFFSET (GimpListItemClass,
|
|
set_preview_size),
|
|
gtk_marshal_NONE__OBJECT,
|
|
GTK_TYPE_NONE, 0);
|
|
|
|
widget_class->draw = gimp_list_item_draw;
|
|
widget_class->drag_leave = gimp_list_item_drag_leave;
|
|
widget_class->drag_motion = gimp_list_item_drag_motion;
|
|
widget_class->drag_drop = gimp_list_item_drag_drop;
|
|
|
|
klass->set_viewable = gimp_list_item_real_set_viewable;
|
|
klass->set_preview_size = gimp_list_item_real_set_preview_size;
|
|
}
|
|
|
|
static void
|
|
gimp_list_item_init (GimpListItem *list_item)
|
|
{
|
|
list_item->hbox = gtk_hbox_new (FALSE, 6);
|
|
gtk_container_set_border_width (GTK_CONTAINER (list_item->hbox), 2);
|
|
gtk_container_add (GTK_CONTAINER (list_item), list_item->hbox);
|
|
gtk_widget_show (list_item->hbox);
|
|
|
|
list_item->preview = NULL;
|
|
list_item->name_label = NULL;
|
|
|
|
list_item->preview_size = 0;
|
|
|
|
list_item->reorderable = FALSE;
|
|
list_item->drop_type = GIMP_DROP_NONE;
|
|
list_item->container = NULL;
|
|
list_item->get_name_func = NULL;
|
|
}
|
|
|
|
static void
|
|
gimp_list_item_draw (GtkWidget *widget,
|
|
GdkRectangle *area)
|
|
{
|
|
GimpListItem *list_item;
|
|
|
|
list_item = GIMP_LIST_ITEM (widget);
|
|
|
|
if (GTK_WIDGET_CLASS (parent_class)->draw)
|
|
GTK_WIDGET_CLASS (parent_class)->draw (widget, area);
|
|
|
|
if (list_item->drop_type != GIMP_DROP_NONE)
|
|
{
|
|
gint x, y;
|
|
|
|
x = list_item->name_label->allocation.x;
|
|
|
|
y = ((list_item->drop_type == GIMP_DROP_ABOVE) ?
|
|
3 : widget->allocation.height - 4);
|
|
|
|
gdk_gc_set_line_attributes (widget->style->black_gc, 5, GDK_LINE_SOLID,
|
|
GDK_CAP_BUTT, GDK_JOIN_MITER);
|
|
|
|
gdk_draw_line (widget->window, widget->style->black_gc,
|
|
x, y,
|
|
widget->allocation.width - 3, y);
|
|
|
|
gdk_gc_set_line_attributes (widget->style->black_gc, 0, GDK_LINE_SOLID,
|
|
GDK_CAP_BUTT, GDK_JOIN_MITER);
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_list_item_drag_leave (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
guint time)
|
|
{
|
|
GimpListItem *list_item;
|
|
|
|
list_item = GIMP_LIST_ITEM (widget);
|
|
|
|
list_item->drop_type = GIMP_DROP_NONE;
|
|
}
|
|
|
|
static gboolean
|
|
gimp_list_item_drag_motion (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
gint x,
|
|
gint y,
|
|
guint time)
|
|
{
|
|
GimpListItem *list_item;
|
|
GimpViewable *src_viewable;
|
|
gint dest_index;
|
|
GdkDragAction drag_action;
|
|
GimpDropType drop_type;
|
|
gboolean return_val;
|
|
|
|
list_item = GIMP_LIST_ITEM (widget);
|
|
|
|
return_val = gimp_list_item_check_drag (list_item, context, x, y,
|
|
&src_viewable,
|
|
&dest_index,
|
|
&drag_action,
|
|
&drop_type);
|
|
|
|
gdk_drag_status (context, drag_action, time);
|
|
|
|
list_item->drop_type = drop_type;
|
|
|
|
return return_val;
|
|
}
|
|
|
|
static gboolean
|
|
gimp_list_item_drag_drop (GtkWidget *widget,
|
|
GdkDragContext *context,
|
|
gint x,
|
|
gint y,
|
|
guint time)
|
|
{
|
|
GimpListItem *list_item;
|
|
GimpViewable *src_viewable;
|
|
gint dest_index;
|
|
GdkDragAction drag_action;
|
|
GimpDropType drop_type;
|
|
gboolean return_val;
|
|
|
|
list_item = GIMP_LIST_ITEM (widget);
|
|
|
|
return_val = gimp_list_item_check_drag (list_item, context, x, y,
|
|
&src_viewable,
|
|
&dest_index,
|
|
&drag_action,
|
|
&drop_type);
|
|
|
|
gtk_drag_finish (context, return_val, FALSE, time);
|
|
|
|
list_item->drop_type = GIMP_DROP_NONE;
|
|
|
|
if (return_val)
|
|
{
|
|
gimp_container_reorder (list_item->container, GIMP_OBJECT (src_viewable),
|
|
dest_index);
|
|
}
|
|
|
|
return return_val;
|
|
}
|
|
|
|
GtkWidget *
|
|
gimp_list_item_new (GimpViewable *viewable,
|
|
gint preview_size)
|
|
{
|
|
GimpListItem *list_item;
|
|
|
|
g_return_val_if_fail (viewable != NULL, NULL);
|
|
g_return_val_if_fail (GIMP_IS_VIEWABLE (viewable), NULL);
|
|
g_return_val_if_fail (preview_size > 0 && preview_size <= 256, NULL);
|
|
|
|
if (GIMP_IS_LAYER (viewable))
|
|
{
|
|
list_item = gtk_type_new (GIMP_TYPE_LAYER_LIST_ITEM);
|
|
}
|
|
else if (GIMP_IS_CHANNEL (viewable))
|
|
{
|
|
list_item = gtk_type_new (GIMP_TYPE_CHANNEL_LIST_ITEM);
|
|
}
|
|
else if (GIMP_IS_DRAWABLE (viewable))
|
|
{
|
|
list_item = gtk_type_new (GIMP_TYPE_DRAWABLE_LIST_ITEM);
|
|
}
|
|
else
|
|
{
|
|
list_item = gtk_type_new (GIMP_TYPE_LIST_ITEM);
|
|
}
|
|
|
|
list_item->preview_size = preview_size;
|
|
|
|
gimp_list_item_set_viewable (list_item, viewable);
|
|
|
|
return GTK_WIDGET (list_item);
|
|
}
|
|
|
|
void
|
|
gimp_list_item_set_viewable (GimpListItem *list_item,
|
|
GimpViewable *viewable)
|
|
{
|
|
g_return_if_fail (list_item != NULL);
|
|
g_return_if_fail (GIMP_IS_LIST_ITEM (list_item));
|
|
|
|
gtk_signal_emit (GTK_OBJECT (list_item), list_item_signals[SET_VIEWABLE],
|
|
viewable);
|
|
}
|
|
|
|
static void
|
|
gimp_list_item_real_set_viewable (GimpListItem *list_item,
|
|
GimpViewable *viewable)
|
|
{
|
|
list_item->preview = gimp_preview_new (viewable, list_item->preview_size,
|
|
1, FALSE);
|
|
gtk_box_pack_start (GTK_BOX (list_item->hbox), list_item->preview,
|
|
FALSE, FALSE, 0);
|
|
gtk_widget_show (list_item->preview);
|
|
|
|
list_item->name_label = gtk_label_new (NULL);
|
|
gtk_box_pack_start (GTK_BOX (list_item->hbox), list_item->name_label,
|
|
FALSE, FALSE, 0);
|
|
gtk_widget_show (list_item->name_label);
|
|
|
|
gimp_list_item_name_changed (viewable, list_item);
|
|
|
|
gtk_signal_connect_while_alive (GTK_OBJECT (viewable), "name_changed",
|
|
GTK_SIGNAL_FUNC (gimp_list_item_name_changed),
|
|
list_item,
|
|
GTK_OBJECT (list_item));
|
|
|
|
gimp_gtk_drag_source_set_by_type (GTK_WIDGET (list_item),
|
|
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK,
|
|
GTK_OBJECT (viewable)->klass->type,
|
|
GDK_ACTION_MOVE | GDK_ACTION_COPY);
|
|
gimp_dnd_viewable_source_set (GTK_WIDGET (list_item),
|
|
GTK_OBJECT (viewable)->klass->type,
|
|
gimp_list_item_drag_viewable,
|
|
NULL);
|
|
}
|
|
|
|
void
|
|
gimp_list_item_set_preview_size (GimpListItem *list_item,
|
|
gint preview_size)
|
|
{
|
|
g_return_if_fail (list_item != NULL);
|
|
g_return_if_fail (GIMP_IS_LIST_ITEM (list_item));
|
|
g_return_if_fail (preview_size > 0 && preview_size <= 256 /* FIXME: 64 */);
|
|
|
|
list_item->preview_size = preview_size;
|
|
|
|
gtk_signal_emit (GTK_OBJECT (list_item), list_item_signals[SET_PREVIEW_SIZE]);
|
|
}
|
|
|
|
static void
|
|
gimp_list_item_real_set_preview_size (GimpListItem *list_item)
|
|
{
|
|
GimpPreview *preview;
|
|
|
|
preview = GIMP_PREVIEW (list_item->preview);
|
|
|
|
gimp_preview_set_size (preview,
|
|
list_item->preview_size, preview->border_width);
|
|
}
|
|
|
|
void
|
|
gimp_list_item_set_reorderable (GimpListItem *list_item,
|
|
gboolean reorderable,
|
|
GimpContainer *container)
|
|
{
|
|
g_return_if_fail (list_item != NULL);
|
|
g_return_if_fail (GIMP_IS_LIST_ITEM (list_item));
|
|
|
|
g_return_if_fail (! reorderable || container != NULL);
|
|
g_return_if_fail (! container || GIMP_IS_CONTAINER (container));
|
|
|
|
list_item->reorderable = reorderable;
|
|
|
|
if (reorderable)
|
|
{
|
|
list_item->container = container;
|
|
|
|
gimp_gtk_drag_dest_set_by_type (GTK_WIDGET (list_item),
|
|
GTK_DEST_DEFAULT_ALL,
|
|
container->children_type,
|
|
GDK_ACTION_MOVE | GDK_ACTION_COPY);
|
|
}
|
|
else
|
|
{
|
|
list_item->container = NULL;
|
|
|
|
gtk_drag_dest_unset (GTK_WIDGET (list_item));
|
|
}
|
|
}
|
|
|
|
void
|
|
gimp_list_item_set_name_func (GimpListItem *list_item,
|
|
GimpItemGetNameFunc get_name_func)
|
|
{
|
|
g_return_if_fail (list_item != NULL);
|
|
g_return_if_fail (GIMP_IS_LIST_ITEM (list_item));
|
|
|
|
if (list_item->get_name_func != get_name_func)
|
|
{
|
|
GimpViewable *viewable;
|
|
|
|
list_item->get_name_func = get_name_func;
|
|
|
|
viewable = GIMP_PREVIEW (list_item->preview)->viewable;
|
|
|
|
if (viewable)
|
|
gimp_list_item_name_changed (viewable, list_item);
|
|
}
|
|
}
|
|
|
|
gboolean
|
|
gimp_list_item_check_drag (GimpListItem *list_item,
|
|
GdkDragContext *context,
|
|
gint x,
|
|
gint y,
|
|
GimpViewable **src_viewable,
|
|
gint *dest_index,
|
|
GdkDragAction *drag_action,
|
|
GimpDropType *drop_type)
|
|
{
|
|
GtkWidget *src_widget;
|
|
GimpViewable *my_src_viewable = NULL;
|
|
GimpViewable *my_dest_viewable = NULL;
|
|
gint my_src_index = -1;
|
|
gint my_dest_index = -1;
|
|
GdkDragAction my_drag_action = GDK_ACTION_DEFAULT;
|
|
GimpDropType my_drop_type = GIMP_DROP_NONE;
|
|
gboolean return_val = FALSE;
|
|
|
|
if (list_item->reorderable &&
|
|
list_item->container &&
|
|
(src_widget = gtk_drag_get_source_widget (context)) &&
|
|
src_widget != GTK_WIDGET (list_item))
|
|
{
|
|
my_src_viewable = gimp_dnd_get_drag_data (src_widget);
|
|
my_dest_viewable = GIMP_PREVIEW (list_item->preview)->viewable;
|
|
|
|
if (my_src_viewable && my_dest_viewable)
|
|
{
|
|
my_src_index =
|
|
gimp_container_get_child_index (list_item->container,
|
|
GIMP_OBJECT (my_src_viewable));
|
|
my_dest_index =
|
|
gimp_container_get_child_index (list_item->container,
|
|
GIMP_OBJECT (my_dest_viewable));
|
|
|
|
if (my_src_viewable && my_src_index != -1 &&
|
|
my_dest_viewable && my_dest_index != -1)
|
|
{
|
|
gint difference;
|
|
|
|
difference = my_dest_index - my_src_index;
|
|
|
|
if (y < GTK_WIDGET (list_item)->allocation.height / 2)
|
|
my_drop_type = GIMP_DROP_ABOVE;
|
|
else
|
|
my_drop_type = GIMP_DROP_BELOW;
|
|
|
|
if (difference < 0 && my_drop_type == GIMP_DROP_BELOW)
|
|
{
|
|
my_dest_index++;
|
|
}
|
|
else if (difference > 0 && my_drop_type == GIMP_DROP_ABOVE)
|
|
{
|
|
my_dest_index--;
|
|
}
|
|
|
|
if (my_src_index != my_dest_index)
|
|
{
|
|
my_drag_action = GDK_ACTION_MOVE;
|
|
return_val = TRUE;
|
|
}
|
|
else
|
|
{
|
|
my_drop_type = GIMP_DROP_NONE;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
*src_viewable = my_src_viewable;
|
|
*dest_index = my_dest_index;
|
|
*drag_action = my_drag_action;
|
|
*drop_type = my_drop_type;
|
|
|
|
return return_val;
|
|
}
|
|
|
|
void
|
|
gimp_list_item_button_realize (GtkWidget *widget,
|
|
gpointer data)
|
|
{
|
|
gdk_window_set_back_pixmap (widget->window, NULL, TRUE);
|
|
}
|
|
|
|
void
|
|
gimp_list_item_button_state_changed (GtkWidget *widget,
|
|
GtkStateType previous_state,
|
|
gpointer data)
|
|
{
|
|
GtkWidget *list_item;
|
|
|
|
list_item = GTK_WIDGET (data);
|
|
|
|
if (widget->state != list_item->state)
|
|
{
|
|
switch (widget->state)
|
|
{
|
|
case GTK_STATE_NORMAL:
|
|
case GTK_STATE_ACTIVE:
|
|
/* beware: recursion */
|
|
gtk_widget_set_state (widget, list_item->state);
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
else if (list_item->state == GTK_STATE_INSENSITIVE)
|
|
{
|
|
/* Don't look here, no, please...
|
|
*
|
|
* I said NO ...
|
|
*/
|
|
if (GTK_WIDGET_DRAWABLE (list_item))
|
|
{
|
|
GdkEventExpose event;
|
|
|
|
event.type = GDK_EXPOSE;
|
|
event.send_event = TRUE;
|
|
event.window = list_item->window;
|
|
event.area.x = widget->allocation.x;
|
|
event.area.y = widget->allocation.y;
|
|
event.area.width = widget->allocation.width;
|
|
event.area.height = widget->allocation.height;
|
|
event.count = 0;
|
|
|
|
gdk_window_ref (event.window);
|
|
gtk_widget_event (list_item, (GdkEvent*) &event);
|
|
gdk_window_unref (event.window);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gimp_list_item_name_changed (GimpViewable *viewable,
|
|
GimpListItem *list_item)
|
|
{
|
|
if (list_item->get_name_func)
|
|
{
|
|
gchar *name;
|
|
|
|
name = list_item->get_name_func (GTK_WIDGET (list_item));
|
|
|
|
gtk_label_set_text (GTK_LABEL (list_item->name_label), name);
|
|
|
|
g_free (name);
|
|
}
|
|
else
|
|
{
|
|
gtk_label_set_text (GTK_LABEL (list_item->name_label),
|
|
gimp_object_get_name (GIMP_OBJECT (viewable)));
|
|
}
|
|
}
|
|
|
|
static GimpViewable *
|
|
gimp_list_item_drag_viewable (GtkWidget *widget,
|
|
gpointer data)
|
|
{
|
|
return GIMP_PREVIEW (GIMP_LIST_ITEM (widget)->preview)->viewable;
|
|
}
|