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gimp/libgimp/gimpitemcombobox.c

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/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpitemcombobox.c
* Copyright (C) 2004 Sven Neumann <sven@gimp.org>
* Copyright (C) 2006 Simon Budig <simon@gimp.org>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <stdlib.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "gimp.h"
#include "gimpuitypes.h"
#include "gimpitemcombobox.h"
#include "gimppixbuf.h"
#define THUMBNAIL_SIZE 24
#define WIDTH_REQUEST 200
typedef enum
{
DRAWABLE_COMBO_BOX,
CHANNEL_COMBO_BOX,
LAYER_COMBO_BOX,
VECTORS_COMBO_BOX
} GimpComboBoxType;
typedef struct _GimpDrawableComboBoxClass GimpDrawableComboBoxClass;
typedef struct _GimpChannelComboBoxClass GimpChannelComboBoxClass;
typedef struct _GimpLayerComboBoxClass GimpLayerComboBoxClass;
typedef struct _GimpVectorsComboBoxClass GimpVectorsComboBoxClass;
struct _GimpDrawableComboBox
{
GimpIntComboBox parent_instance;
};
struct _GimpDrawableComboBoxClass
{
GimpIntComboBoxClass parent_class;
};
struct _GimpChannelComboBox
{
GimpIntComboBox parent_instance;
};
struct _GimpChannelComboBoxClass
{
GimpIntComboBoxClass parent_class;
};
struct _GimpLayerComboBox
{
GimpIntComboBox parent_instance;
};
struct _GimpLayerComboBoxClass
{
GimpIntComboBoxClass parent_class;
};
struct _GimpVectorsComboBox
{
GimpIntComboBox parent_instance;
};
struct _GimpVectorsComboBoxClass
{
GimpIntComboBoxClass parent_class;
};
static GtkWidget * gimp_item_combo_box_new (GimpComboBoxType type,
GimpItemConstraintFunc constraint,
gpointer data);
static void gimp_item_combo_box_model_add (GtkListStore *store,
gint32 image,
gint num_items,
gint32 *items,
GimpComboBoxType type,
GimpItemConstraintFunc constraint,
gpointer data);
static void gimp_item_combo_box_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection,
guint info,
guint time);
static const GtkTargetEntry targets[] =
{
{ "application/x-gimp-channel-id", 0 },
{ "application/x-gimp-layer-id", 0 },
{ "application/x-gimp-vectors-id", 0 }
};
G_DEFINE_TYPE (GimpDrawableComboBox, gimp_drawable_combo_box,
GIMP_TYPE_INT_COMBO_BOX)
static void
gimp_drawable_combo_box_class_init (GimpDrawableComboBoxClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->drag_data_received = gimp_item_combo_box_drag_data_received;
}
static void
gimp_drawable_combo_box_init (GimpDrawableComboBox *combo_box)
{
gtk_drag_dest_set (GTK_WIDGET (combo_box),
GTK_DEST_DEFAULT_HIGHLIGHT |
GTK_DEST_DEFAULT_MOTION |
GTK_DEST_DEFAULT_DROP,
targets, 2,
GDK_ACTION_COPY);
}
/**
* gimp_drawable_combo_box_new:
* @constraint: a #GimpDrawableConstraintFunc or %NULL
* @data: a pointer that is passed to @constraint
*
* Creates a new #GimpIntComboBox filled with all currently opened
* drawables. If a @constraint function is specified, it is called for
* each drawable and only if the function returns %TRUE, the drawable
* is added to the combobox.
*
* You should use gimp_int_combo_box_connect() to initialize and connect
* the combo. Use gimp_int_combo_box_set_active() to get the active
* drawable ID and gimp_int_combo_box_get_active() to retrieve the ID
* of the selected drawable.
*
* Return value: a new #GimpIntComboBox.
*
* Since: GIMP 2.2
**/
GtkWidget *
gimp_drawable_combo_box_new (GimpDrawableConstraintFunc constraint,
gpointer data)
{
return gimp_item_combo_box_new (DRAWABLE_COMBO_BOX, constraint, data);
}
G_DEFINE_TYPE(GimpChannelComboBox,
gimp_channel_combo_box,
GIMP_TYPE_INT_COMBO_BOX);
static void
gimp_channel_combo_box_class_init (GimpChannelComboBoxClass *klass)
{
GtkWidgetClass *widget_class;
widget_class = GTK_WIDGET_CLASS (klass);
widget_class->drag_data_received = gimp_item_combo_box_drag_data_received;
}
static void
gimp_channel_combo_box_init (GimpChannelComboBox *combo_box)
{
gtk_drag_dest_set (GTK_WIDGET (combo_box),
GTK_DEST_DEFAULT_HIGHLIGHT |
GTK_DEST_DEFAULT_MOTION |
GTK_DEST_DEFAULT_DROP,
targets, 1,
GDK_ACTION_COPY);
}
/**
* gimp_channel_combo_box_new:
* @constraint: a #GimpDrawableConstraintFunc or %NULL
* @data: a pointer that is passed to @constraint
*
* Creates a new #GimpIntComboBox filled with all currently opened
* channels. See gimp_drawable_combo_box() for more info.
*
* Return value: a new #GimpIntComboBox.
*
* Since: GIMP 2.2
**/
GtkWidget *
gimp_channel_combo_box_new (GimpDrawableConstraintFunc constraint,
gpointer data)
{
return gimp_item_combo_box_new (CHANNEL_COMBO_BOX, constraint, data);
}
G_DEFINE_TYPE(GimpLayerComboBox,
gimp_layer_combo_box,
GIMP_TYPE_INT_COMBO_BOX);
static void
gimp_layer_combo_box_class_init (GimpLayerComboBoxClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->drag_data_received = gimp_item_combo_box_drag_data_received;
}
static void
gimp_layer_combo_box_init (GimpLayerComboBox *combo_box)
{
gtk_drag_dest_set (GTK_WIDGET (combo_box),
GTK_DEST_DEFAULT_HIGHLIGHT |
GTK_DEST_DEFAULT_MOTION |
GTK_DEST_DEFAULT_DROP,
targets + 1, 1,
GDK_ACTION_COPY);
}
/**
* gimp_layer_combo_box_new:
* @constraint: a #GimpDrawableConstraintFunc or %NULL
* @data: a pointer that is passed to @constraint
*
* Creates a new #GimpIntComboBox filled with all currently opened
* layers. See gimp_drawable_combo_box() for more info.
*
* Return value: a new #GimpIntComboBox.
*
* Since: GIMP 2.2
**/
GtkWidget *
gimp_layer_combo_box_new (GimpDrawableConstraintFunc constraint,
gpointer data)
{
return gimp_item_combo_box_new (LAYER_COMBO_BOX, constraint, data);
}
G_DEFINE_TYPE (GimpVectorsComboBox, gimp_vectors_combo_box,
GIMP_TYPE_INT_COMBO_BOX)
static void
gimp_vectors_combo_box_class_init (GimpVectorsComboBoxClass *klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
widget_class->drag_data_received = gimp_item_combo_box_drag_data_received;
}
static void
gimp_vectors_combo_box_init (GimpVectorsComboBox *combo_box)
{
gtk_drag_dest_set (GTK_WIDGET (combo_box),
GTK_DEST_DEFAULT_HIGHLIGHT |
GTK_DEST_DEFAULT_MOTION |
GTK_DEST_DEFAULT_DROP,
targets + 2, 1,
GDK_ACTION_COPY);
}
/**
* gimp_vectors_combo_box_new:
* @constraint: a #GimpVectorsConstraintFunc or %NULL
* @data: a pointer that is passed to @constraint
*
* Creates a new #GimpIntComboBox filled with all currently opened
* vectors objects. If a @constraint function is specified, it is called for
* each vectors object and only if the function returns %TRUE, the vectors
* object is added to the combobox.
*
* You should use gimp_int_combo_box_connect() to initialize and connect
* the combo. Use gimp_int_combo_box_set_active() to set the active
* vectors ID and gimp_int_combo_box_get_active() to retrieve the ID
* of the selected vectors object.
*
* Return value: a new #GimpIntComboBox.
*
* Since: GIMP 2.4
**/
GtkWidget *
gimp_vectors_combo_box_new (GimpVectorsConstraintFunc constraint,
gpointer data)
{
return gimp_item_combo_box_new (VECTORS_COMBO_BOX, constraint, data);
}
static GtkWidget *
gimp_item_combo_box_new (GimpComboBoxType type,
GimpItemConstraintFunc constraint,
gpointer data)
{
GType combo_box_type = G_TYPE_NONE;
GtkWidget *combo_box;
GtkTreeModel *model;
GtkTreeIter iter;
gint32 *images;
gint num_images;
gint i;
switch (type)
{
case DRAWABLE_COMBO_BOX:
combo_box_type = GIMP_TYPE_DRAWABLE_COMBO_BOX;
break;
case CHANNEL_COMBO_BOX:
combo_box_type = GIMP_TYPE_CHANNEL_COMBO_BOX;
break;
case LAYER_COMBO_BOX:
combo_box_type = GIMP_TYPE_LAYER_COMBO_BOX;
break;
case VECTORS_COMBO_BOX:
combo_box_type = GIMP_TYPE_VECTORS_COMBO_BOX;
break;
}
combo_box = g_object_new (combo_box_type,
"width-request", WIDTH_REQUEST,
"ellipsize", PANGO_ELLIPSIZE_MIDDLE,
NULL);
model = gtk_combo_box_get_model (GTK_COMBO_BOX (combo_box));
images = gimp_image_list (&num_images);
for (i = 0; i < num_images; i++)
{
gint32 *items;
gint num_items;
if (type == DRAWABLE_COMBO_BOX ||
type == LAYER_COMBO_BOX)
{
items = gimp_image_get_layers (images[i], &num_items);
gimp_item_combo_box_model_add (GTK_LIST_STORE (model),
images[i],
num_items, items, type,
constraint, data);
g_free (items);
}
if (type == DRAWABLE_COMBO_BOX ||
type == CHANNEL_COMBO_BOX)
{
items = gimp_image_get_channels (images[i], &num_items);
gimp_item_combo_box_model_add (GTK_LIST_STORE (model),
images[i],
num_items, items, type,
constraint, data);
g_free (items);
}
if (type == VECTORS_COMBO_BOX)
{
items = gimp_image_get_vectors (images[i], &num_items);
gimp_item_combo_box_model_add (GTK_LIST_STORE (model),
images[i],
num_items, items, type,
constraint, data);
g_free (items);
}
}
g_free (images);
if (gtk_tree_model_get_iter_first (model, &iter))
gtk_combo_box_set_active_iter (GTK_COMBO_BOX (combo_box), &iter);
return combo_box;
}
static void
gimp_item_combo_box_model_add (GtkListStore *store,
gint32 image,
gint num_items,
gint32 *items,
GimpComboBoxType type,
GimpItemConstraintFunc constraint,
gpointer data)
{
GtkTreeIter iter;
gint i;
for (i = 0; i < num_items; i++)
{
if (! constraint || (* constraint) (image, items[i], data))
{
gchar *image_name = gimp_image_get_name (image);
gchar *item_name;
gchar *label;
GdkPixbuf *thumb;
if (type == VECTORS_COMBO_BOX)
item_name = gimp_vectors_get_name (items[i]);
else
item_name = gimp_drawable_get_name (items[i]);
label = g_strdup_printf ("%s-%d/%s-%d",
image_name, image,
item_name, items[i]);
g_free (item_name);
g_free (image_name);
if (type == VECTORS_COMBO_BOX)
thumb = NULL;
else
thumb = gimp_drawable_get_thumbnail (items[i],
THUMBNAIL_SIZE, THUMBNAIL_SIZE,
GIMP_PIXBUF_SMALL_CHECKS);
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter,
GIMP_INT_STORE_VALUE, items[i],
GIMP_INT_STORE_LABEL, label,
GIMP_INT_STORE_PIXBUF, thumb,
-1);
if (thumb)
g_object_unref (thumb);
g_free (label);
}
}
}
static void
gimp_item_combo_box_drag_data_received (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection,
guint info,
guint time)
{
gchar *str;
if ((selection->format != 8) || (selection->length < 1))
{
g_warning ("Received invalid item ID data!");
return;
}
str = g_strndup ((const gchar *) selection->data, selection->length);
if (g_utf8_validate (str, -1, NULL))
{
gint pid;
gint ID;
if (sscanf (str, "%i:%i", &pid, &ID) == 2 &&
pid == gimp_getpid ())
{
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (widget), ID);
}
}
g_free (str);
}
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