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gimp/app/widgets/gimpselectioneditor.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <gtk/gtk.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#ifdef __GNUC__
#warning #include "tools/tools-types.h"
#endif
#include "tools/tools-types.h"
#include "config/gimpcoreconfig.h"
#include "core/gimp.h"
#include "core/gimpcontainer.h"
#include "core/gimpdrawable.h"
#include "core/gimpimage.h"
#include "core/gimpimage-mask.h"
#include "core/gimpimage-mask-select.h"
#include "core/gimpimage-projection.h"
#include "core/gimptoolinfo.h"
#include "tools/gimpselectionoptions.h"
#include "gimpselectioneditor.h"
#include "gimpdnd.h"
#include "gimppreview.h"
#include "gimppreviewrenderer.h"
#include "gimp-intl.h"
static void gimp_selection_editor_class_init (GimpSelectionEditorClass *klass);
static void gimp_selection_editor_init (GimpSelectionEditor *selection_editor);
static void gimp_selection_editor_set_image (GimpImageEditor *editor,
GimpImage *gimage);
static void gimp_selection_editor_invert_clicked (GtkWidget *widget,
GimpImageEditor *editor);
static void gimp_selection_editor_all_clicked (GtkWidget *widget,
GimpImageEditor *editor);
static void gimp_selection_editor_none_clicked (GtkWidget *widget,
GimpImageEditor *editor);
static void gimp_selection_editor_save_clicked (GtkWidget *widget,
GimpImageEditor *editor);
static void gimp_selection_editor_stroke_clicked (GtkWidget *widget,
GimpImageEditor *editor);
static gboolean gimp_selection_preview_button_press(GtkWidget *widget,
GdkEventButton *bevent,
GimpSelectionEditor *editor);
static void gimp_selection_editor_drop_color (GtkWidget *widget,
const GimpRGB *color,
gpointer data);
static void gimp_selection_editor_mask_changed (GimpImage *gimage,
GimpSelectionEditor *editor);
static GimpImageEditorClass *parent_class = NULL;
GType
gimp_selection_editor_get_type (void)
{
static GType editor_type = 0;
if (! editor_type)
{
static const GTypeInfo editor_info =
{
sizeof (GimpSelectionEditorClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_selection_editor_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpSelectionEditor),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_selection_editor_init,
};
editor_type = g_type_register_static (GIMP_TYPE_IMAGE_EDITOR,
"GimpSelectionEditor",
&editor_info, 0);
}
return editor_type;
}
static void
gimp_selection_editor_class_init (GimpSelectionEditorClass* klass)
{
GimpImageEditorClass *image_editor_class;
image_editor_class = GIMP_IMAGE_EDITOR_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
image_editor_class->set_image = gimp_selection_editor_set_image;
}
static void
gimp_selection_editor_init (GimpSelectionEditor *selection_editor)
{
GtkWidget *frame;
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (selection_editor), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
selection_editor->preview = gimp_preview_new_by_types (GIMP_TYPE_PREVIEW,
GIMP_TYPE_DRAWABLE,
GIMP_PREVIEW_SIZE_HUGE,
0, TRUE);
gtk_widget_set_size_request (selection_editor->preview,
GIMP_PREVIEW_SIZE_HUGE, GIMP_PREVIEW_SIZE_HUGE);
gimp_preview_set_expand (GIMP_PREVIEW (selection_editor->preview), TRUE);
gtk_container_add (GTK_CONTAINER (frame), selection_editor->preview);
gtk_widget_show (selection_editor->preview);
g_signal_connect (selection_editor->preview, "button_press_event",
G_CALLBACK (gimp_selection_preview_button_press),
selection_editor);
gimp_dnd_color_dest_add (selection_editor->preview,
gimp_selection_editor_drop_color,
selection_editor);
selection_editor->all_button =
gimp_editor_add_button (GIMP_EDITOR (selection_editor),
GIMP_STOCK_SELECTION_ALL,
_("Select All"), NULL,
G_CALLBACK (gimp_selection_editor_all_clicked),
NULL,
selection_editor);
selection_editor->none_button =
gimp_editor_add_button (GIMP_EDITOR (selection_editor),
GIMP_STOCK_SELECTION_NONE,
_("Select None"), NULL,
G_CALLBACK (gimp_selection_editor_none_clicked),
NULL,
selection_editor);
selection_editor->invert_button =
gimp_editor_add_button (GIMP_EDITOR (selection_editor),
GIMP_STOCK_INVERT,
_("Invert Selection"), NULL,
G_CALLBACK (gimp_selection_editor_invert_clicked),
NULL,
selection_editor);
selection_editor->save_button =
gimp_editor_add_button (GIMP_EDITOR (selection_editor),
GIMP_STOCK_SELECTION_TO_CHANNEL,
_("Save Selection to Channel"), NULL,
G_CALLBACK (gimp_selection_editor_save_clicked),
NULL,
selection_editor);
selection_editor->stroke_button =
gimp_editor_add_button (GIMP_EDITOR (selection_editor),
GIMP_STOCK_SELECTION_STROKE,
_("Stroke Selection"), NULL,
G_CALLBACK (gimp_selection_editor_stroke_clicked),
NULL,
selection_editor);
gtk_widget_set_sensitive (GTK_WIDGET (selection_editor), FALSE);
}
static void
gimp_selection_editor_set_image (GimpImageEditor *image_editor,
GimpImage *gimage)
{
GimpSelectionEditor *editor;
editor = GIMP_SELECTION_EDITOR (image_editor);
if (image_editor->gimage)
{
g_signal_handlers_disconnect_by_func (image_editor->gimage,
gimp_selection_editor_mask_changed,
editor);
}
GIMP_IMAGE_EDITOR_CLASS (parent_class)->set_image (image_editor, gimage);
if (gimage)
{
g_signal_connect (gimage, "mask_changed",
G_CALLBACK (gimp_selection_editor_mask_changed),
editor);
gimp_preview_set_viewable (GIMP_PREVIEW (editor->preview),
GIMP_VIEWABLE (gimp_image_get_mask (gimage)));
}
else
{
gimp_preview_set_viewable (GIMP_PREVIEW (editor->preview), NULL);
}
}
/* public functions */
#define PREVIEW_WIDTH 256
#define PREVIEW_HEIGHT 256
GtkWidget *
gimp_selection_editor_new (GimpImage *gimage)
{
GimpSelectionEditor *editor;
g_return_val_if_fail (! gimage || GIMP_IS_IMAGE (gimage), NULL);
editor = g_object_new (GIMP_TYPE_SELECTION_EDITOR, NULL);
gimp_preview_renderer_set_background (GIMP_PREVIEW (editor->preview)->renderer,
GIMP_STOCK_TEXTURE);
if (gimage)
gimp_image_editor_set_image (GIMP_IMAGE_EDITOR (editor), gimage);
return GTK_WIDGET (editor);
}
static void
gimp_selection_editor_invert_clicked (GtkWidget *widget,
GimpImageEditor *editor)
{
if (editor->gimage)
{
gimp_image_mask_invert (editor->gimage);
gimp_image_flush (editor->gimage);
}
}
static void
gimp_selection_editor_all_clicked (GtkWidget *widget,
GimpImageEditor *editor)
{
if (editor->gimage)
{
gimp_image_mask_all (editor->gimage);
gimp_image_flush (editor->gimage);
}
}
static void
gimp_selection_editor_none_clicked (GtkWidget *widget,
GimpImageEditor *editor)
{
if (editor->gimage)
{
gimp_image_mask_clear (editor->gimage, NULL);
gimp_image_flush (editor->gimage);
}
}
static void
gimp_selection_editor_save_clicked (GtkWidget *widget,
GimpImageEditor *editor)
{
if (editor->gimage)
{
gimp_image_mask_save (editor->gimage);
}
}
static void
gimp_selection_editor_stroke_clicked (GtkWidget *widget,
GimpImageEditor *editor)
{
if (editor->gimage)
{
GimpImage *gimage = editor->gimage;
gimp_image_mask_stroke (gimage,
gimp_image_active_drawable (gimage),
gimp_get_current_context (gimage->gimp));
gimp_image_flush (gimage);
}
}
static gboolean
gimp_selection_preview_button_press (GtkWidget *widget,
GdkEventButton *bevent,
GimpSelectionEditor *editor)
{
GimpImageEditor *image_editor;
GimpPreviewRenderer *renderer;
GimpToolInfo *tool_info;
GimpSelectionOptions *options;
GimpDrawable *drawable;
SelectOps operation = SELECTION_REPLACE;
gint x, y;
guchar *col;
GimpRGB color;
image_editor = GIMP_IMAGE_EDITOR (editor);
if (! image_editor->gimage)
return TRUE;
renderer = GIMP_PREVIEW (editor->preview)->renderer;
tool_info = (GimpToolInfo *)
gimp_container_get_child_by_name (image_editor->gimage->gimp->tool_info_list,
"gimp-by-color-select-tool");
if (! tool_info)
return TRUE;
options = GIMP_SELECTION_OPTIONS (tool_info->tool_options);
drawable = gimp_image_active_drawable (image_editor->gimage);
if (! drawable)
return TRUE;
if (bevent->state & GDK_SHIFT_MASK)
{
if (bevent->state & GDK_CONTROL_MASK)
{
operation = SELECTION_INTERSECT;
}
else
{
operation = SELECTION_ADD;
}
}
else if (bevent->state & GDK_CONTROL_MASK)
{
operation = SELECTION_SUBTRACT;
}
x = image_editor->gimage->width * bevent->x / renderer->width;
y = image_editor->gimage->height * bevent->y / renderer->height;
if (options->sample_merged)
{
if (x < 0 || y < 0 ||
x >= image_editor->gimage->width ||
y >= image_editor->gimage->height)
return TRUE;
col = gimp_image_projection_get_color_at (image_editor->gimage, x, y);
}
else
{
GimpItem *item;
gint off_x, off_y;
item = GIMP_ITEM (drawable);
gimp_item_offsets (item, &off_x, &off_y);
x -= off_x;
y -= off_y;
if (x < 0 || y < 0 ||
x >= gimp_item_width (item) ||
y >= gimp_item_height (item))
return TRUE;
col = gimp_drawable_get_color_at (drawable, x, y);
}
gimp_rgba_set_uchar (&color, col[0], col[1], col[2], col[3]);
g_free (col);
gimp_image_mask_select_by_color (image_editor->gimage, drawable,
options->sample_merged,
&color,
options->threshold,
options->select_transparent,
operation,
options->antialias,
options->feather,
options->feather_radius,
options->feather_radius);
gimp_image_flush (image_editor->gimage);
return TRUE;
}
static void
gimp_selection_editor_drop_color (GtkWidget *widget,
const GimpRGB *color,
gpointer data)
{
GimpToolInfo *tool_info;
GimpSelectionOptions *options;
GimpDrawable *drawable;
GimpImageEditor *editor;
editor = GIMP_IMAGE_EDITOR (data);
if (! editor->gimage)
return;
tool_info = (GimpToolInfo *)
gimp_container_get_child_by_name (editor->gimage->gimp->tool_info_list,
"gimp-by-color-select-tool");
if (! tool_info)
return;
options = GIMP_SELECTION_OPTIONS (tool_info->tool_options);
drawable = gimp_image_active_drawable (editor->gimage);
if (! drawable)
return;
gimp_image_mask_select_by_color (editor->gimage, drawable,
options->sample_merged,
color,
options->threshold,
options->select_transparent,
options->operation,
options->antialias,
options->feather,
options->feather_radius,
options->feather_radius);
gimp_image_flush (editor->gimage);
}
static void
gimp_selection_editor_mask_changed (GimpImage *gimage,
GimpSelectionEditor *editor)
{
gimp_preview_renderer_invalidate (GIMP_PREVIEW (editor->preview)->renderer);
}
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