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gimp/app/tools/gimpfiltertool.c

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/* GIMP - The GNU 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 3 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, see <http://www.gnu.org/licenses/>.
*/
/* This file contains a base class for tools that implement on canvas
* preview for non destructive editing. The processing of the pixels can
* be done either by a gegl op or by a C function (apply_func).
*
* For the core side of this, please see /app/core/gimpimagemap.c.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpconfig/gimpconfig.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "config/gimpguiconfig.h"
#include "gegl/gimp-gegl-config.h"
#include "gegl/gimp-gegl-utils.h"
#include "core/gimp.h"
#include "core/gimpdrawable.h"
#include "core/gimpdrawablefilter.h"
#include "core/gimperror.h"
#include "core/gimpguide.h"
#include "core/gimpimage.h"
#include "core/gimpimage-guides.h"
#include "core/gimpimage-pick-color.h"
#include "core/gimplist.h"
#include "core/gimppickable.h"
#include "core/gimpprogress.h"
#include "core/gimpprojection.h"
#include "core/gimpsettings.h"
#include "core/gimptoolinfo.h"
#include "widgets/gimpsettingsbox.h"
#include "widgets/gimpwidgets-utils.h"
#include "display/gimpdisplay.h"
#include "display/gimpdisplayshell.h"
#include "display/gimpdisplayshell-appearance.h"
#include "display/gimpdisplayshell-transform.h"
#include "display/gimptoolgui.h"
#include "gimpfilteroptions.h"
#include "gimpfiltertool.h"
#include "gimpfiltertool-settings.h"
#include "gimpguidetool.h"
#include "gimptoolcontrol.h"
#include "tool_manager.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_filter_tool_constructed (GObject *object);
static void gimp_filter_tool_finalize (GObject *object);
static gboolean gimp_filter_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error);
static void gimp_filter_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display);
static void gimp_filter_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonPressType press_type,
GimpDisplay *display);
static gboolean gimp_filter_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display);
static void gimp_filter_tool_oper_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display);
static void gimp_filter_tool_cursor_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display);
static void gimp_filter_tool_options_notify (GimpTool *tool,
GimpToolOptions *options,
const GParamSpec *pspec);
static gboolean gimp_filter_tool_pick_color (GimpColorTool *color_tool,
gint x,
gint y,
const Babl **sample_format,
gpointer pixel,
GimpRGB *color);
static void gimp_filter_tool_color_picked (GimpColorTool *color_tool,
GimpColorPickState pick_state,
gdouble x,
gdouble y,
const Babl *sample_format,
gpointer pixel,
const GimpRGB *color);
static void gimp_filter_tool_real_reset (GimpFilterTool *filter_tool);
static void gimp_filter_tool_halt (GimpFilterTool *filter_tool);
static void gimp_filter_tool_commit (GimpFilterTool *filter_tool);
static void gimp_filter_tool_dialog (GimpFilterTool *filter_tool);
static void gimp_filter_tool_dialog_unmap (GtkWidget *dialog,
GimpFilterTool *filter_tool);
static void gimp_filter_tool_reset (GimpFilterTool *filter_tool);
static void gimp_filter_tool_create_map (GimpFilterTool *filter_tool);
static void gimp_filter_tool_flush (GimpDrawableFilter *filter,
GimpFilterTool *filter_tool);
static void gimp_filter_tool_config_notify (GObject *object,
const GParamSpec *pspec,
GimpFilterTool *filter_tool);
static void gimp_filter_tool_add_guide (GimpFilterTool *filter_tool);
static void gimp_filter_tool_remove_guide (GimpFilterTool *filter_tool);
static void gimp_filter_tool_move_guide (GimpFilterTool *filter_tool);
static void gimp_filter_tool_guide_removed (GimpGuide *guide,
GimpFilterTool *filter_tool);
static void gimp_filter_tool_guide_moved (GimpGuide *guide,
const GParamSpec *pspec,
GimpFilterTool *filter_tool);
static void gimp_filter_tool_response (GimpToolGui *gui,
gint response_id,
GimpFilterTool *filter_tool);
G_DEFINE_TYPE (GimpFilterTool, gimp_filter_tool, GIMP_TYPE_COLOR_TOOL)
#define parent_class gimp_filter_tool_parent_class
static void
gimp_filter_tool_class_init (GimpFilterToolClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpColorToolClass *color_tool_class = GIMP_COLOR_TOOL_CLASS (klass);
object_class->constructed = gimp_filter_tool_constructed;
object_class->finalize = gimp_filter_tool_finalize;
tool_class->initialize = gimp_filter_tool_initialize;
tool_class->control = gimp_filter_tool_control;
tool_class->button_press = gimp_filter_tool_button_press;
tool_class->key_press = gimp_filter_tool_key_press;
tool_class->oper_update = gimp_filter_tool_oper_update;
tool_class->cursor_update = gimp_filter_tool_cursor_update;
tool_class->options_notify = gimp_filter_tool_options_notify;
color_tool_class->pick = gimp_filter_tool_pick_color;
color_tool_class->picked = gimp_filter_tool_color_picked;
klass->settings_name = NULL;
klass->import_dialog_title = NULL;
klass->export_dialog_title = NULL;
klass->get_operation = NULL;
klass->dialog = NULL;
klass->reset = gimp_filter_tool_real_reset;
klass->get_settings_ui = gimp_filter_tool_real_get_settings_ui;
klass->settings_import = gimp_filter_tool_real_settings_import;
klass->settings_export = gimp_filter_tool_real_settings_export;
}
static void
gimp_filter_tool_init (GimpFilterTool *filter_tool)
{
GimpTool *tool = GIMP_TOOL (filter_tool);
gimp_tool_control_set_scroll_lock (tool->control, TRUE);
gimp_tool_control_set_preserve (tool->control, FALSE);
gimp_tool_control_set_dirty_mask (tool->control,
GIMP_DIRTY_IMAGE |
GIMP_DIRTY_IMAGE_STRUCTURE |
GIMP_DIRTY_DRAWABLE |
GIMP_DIRTY_ACTIVE_DRAWABLE);
}
static void
gimp_filter_tool_constructed (GObject *object)
{
GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (object);
G_OBJECT_CLASS (parent_class)->constructed (object);
gimp_filter_tool_get_operation (filter_tool);
}
static void
gimp_filter_tool_finalize (GObject *object)
{
GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (object);
if (filter_tool->operation)
{
g_object_unref (filter_tool->operation);
filter_tool->operation = NULL;
}
if (filter_tool->config)
{
g_object_unref (filter_tool->config);
filter_tool->config = NULL;
}
if (filter_tool->default_config)
{
g_object_unref (filter_tool->default_config);
filter_tool->default_config = NULL;
}
if (filter_tool->title)
{
g_free (filter_tool->title);
filter_tool->title = NULL;
}
if (filter_tool->description)
{
g_free (filter_tool->description);
filter_tool->description = NULL;
}
if (filter_tool->undo_desc)
{
g_free (filter_tool->undo_desc);
filter_tool->undo_desc = NULL;
}
if (filter_tool->icon_name)
{
g_free (filter_tool->icon_name);
filter_tool->icon_name = NULL;
}
if (filter_tool->help_id)
{
g_free (filter_tool->help_id);
filter_tool->help_id = NULL;
}
if (filter_tool->gui)
{
g_object_unref (filter_tool->gui);
filter_tool->gui = NULL;
filter_tool->settings_box = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
#define RESPONSE_RESET 1
static gboolean
gimp_filter_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error)
{
GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (tool);
GimpToolInfo *tool_info = tool->tool_info;
GimpImage *image = gimp_display_get_image (display);
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
GimpDisplayShell *shell = gimp_display_get_shell (display);
if (! drawable)
return FALSE;
if (gimp_viewable_get_children (GIMP_VIEWABLE (drawable)))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("Cannot modify the pixels of layer groups."));
return FALSE;
}
if (gimp_item_is_content_locked (GIMP_ITEM (drawable)))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("The active layer's pixels are locked."));
return FALSE;
}
if (! gimp_item_is_visible (GIMP_ITEM (drawable)))
{
g_set_error_literal (error, GIMP_ERROR, GIMP_FAILED,
_("The active layer is not visible."));
return FALSE;
}
if (filter_tool->active_picker)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (filter_tool->active_picker),
FALSE);
/* set display so the dialog can be hidden on display destruction */
tool->display = display;
if (filter_tool->config)
gimp_config_reset (GIMP_CONFIG (filter_tool->config));
if (! filter_tool->gui)
{
GimpFilterToolClass *klass = GIMP_FILTER_TOOL_GET_CLASS (filter_tool);
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *toggle;
gchar *operation_name;
/* disabled for at least GIMP 2.8 */
filter_tool->overlay = FALSE;
filter_tool->gui =
gimp_tool_gui_new (tool_info,
filter_tool->title,
filter_tool->description,
filter_tool->icon_name,
filter_tool->help_id,
gtk_widget_get_screen (GTK_WIDGET (shell)),
gimp_widget_get_monitor (GTK_WIDGET (shell)),
filter_tool->overlay,
GIMP_STOCK_RESET, RESPONSE_RESET,
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
GTK_STOCK_OK, GTK_RESPONSE_OK,
NULL);
gimp_tool_gui_set_default_response (filter_tool->gui, GTK_RESPONSE_OK);
gimp_tool_gui_set_alternative_button_order (filter_tool->gui,
RESPONSE_RESET,
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
vbox = gimp_tool_gui_get_vbox (filter_tool->gui);
g_signal_connect_object (filter_tool->gui, "response",
G_CALLBACK (gimp_filter_tool_response),
G_OBJECT (filter_tool), 0);
if (filter_tool->config && klass->settings_name)
{
GType type = G_TYPE_FROM_INSTANCE (filter_tool->config);
GimpContainer *settings;
GFile *settings_file;
GFile *default_folder;
GtkWidget *settings_ui;
settings = gimp_gegl_config_get_container (type);
if (! gimp_list_get_sort_func (GIMP_LIST (settings)))
gimp_list_set_sort_func (GIMP_LIST (settings),
(GCompareFunc) gimp_settings_compare);
settings_file = gimp_tool_info_get_options_file (tool_info,
".settings");
default_folder = gimp_directory_file (klass->settings_name, NULL);
settings_ui = klass->get_settings_ui (filter_tool,
settings,
settings_file,
klass->import_dialog_title,
klass->export_dialog_title,
filter_tool->help_id,
default_folder,
&filter_tool->settings_box);
g_object_unref (default_folder);
g_object_unref (settings_file);
gtk_box_pack_start (GTK_BOX (vbox), settings_ui, FALSE, FALSE, 0);
gtk_widget_show (settings_ui);
}
/* The gamma hack toggle */
toggle = gimp_prop_check_button_new (G_OBJECT (tool_info->tool_options),
"gamma-hack", NULL);
gtk_box_pack_end (GTK_BOX (vbox), toggle, FALSE, FALSE, 0);
gtk_widget_show (toggle);
/* The preview and split view toggles */
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
gtk_box_pack_end (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
toggle = gimp_prop_check_button_new (G_OBJECT (tool_info->tool_options),
"preview", NULL);
gtk_box_pack_start (GTK_BOX (hbox), toggle, TRUE, TRUE, 0);
gtk_widget_show (toggle);
toggle = gimp_prop_check_button_new (G_OBJECT (tool_info->tool_options),
"preview-split", NULL);
gtk_box_pack_start (GTK_BOX (hbox), toggle, FALSE, FALSE, 0);
gtk_widget_show (toggle);
g_object_bind_property (G_OBJECT (tool_info->tool_options), "preview",
toggle, "sensitive",
G_BINDING_SYNC_CREATE);
/* The area combo */
gegl_node_get (filter_tool->operation,
"operation", &operation_name,
NULL);
filter_tool->region_combo =
gimp_prop_enum_combo_box_new (G_OBJECT (tool_info->tool_options),
"region",
0, 0);
gtk_box_pack_end (GTK_BOX (vbox), filter_tool->region_combo,
FALSE, FALSE, 0);
if (operation_name &&
gegl_operation_get_key (operation_name, "position-dependent"))
{
gtk_widget_show (filter_tool->region_combo);
}
g_free (operation_name);
/* Fill in subclass widgets */
gimp_filter_tool_dialog (filter_tool);
}
else
{
gimp_tool_gui_set_title (filter_tool->gui, filter_tool->title);
gimp_tool_gui_set_description (filter_tool->gui, filter_tool->description);
gimp_tool_gui_set_icon_name (filter_tool->gui, filter_tool->icon_name);
gimp_tool_gui_set_help_id (filter_tool->gui, filter_tool->help_id);
}
gimp_tool_gui_set_shell (filter_tool->gui, shell);
gimp_tool_gui_set_viewable (filter_tool->gui, GIMP_VIEWABLE (drawable));
gimp_tool_gui_show (filter_tool->gui);
filter_tool->drawable = drawable;
gimp_filter_tool_create_map (filter_tool);
return TRUE;
}
static void
gimp_filter_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display)
{
GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (tool);
switch (action)
{
case GIMP_TOOL_ACTION_PAUSE:
case GIMP_TOOL_ACTION_RESUME:
break;
case GIMP_TOOL_ACTION_HALT:
gimp_filter_tool_halt (filter_tool);
break;
case GIMP_TOOL_ACTION_COMMIT:
gimp_filter_tool_commit (filter_tool);
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static void
gimp_filter_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonPressType press_type,
GimpDisplay *display)
{
GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (tool);
if (! gimp_filter_tool_on_guide (filter_tool, coords, display))
{
GIMP_TOOL_CLASS (parent_class)->button_press (tool, coords, time, state,
press_type, display);
}
else
{
GimpFilterOptions *options = GIMP_FILTER_TOOL_GET_OPTIONS (tool);
if (state & gimp_get_extend_selection_mask ())
{
GimpAlignmentType alignment;
/* switch side */
switch (options->preview_alignment)
{
case GIMP_ALIGN_LEFT: alignment = GIMP_ALIGN_RIGHT; break;
case GIMP_ALIGN_RIGHT: alignment = GIMP_ALIGN_LEFT; break;
case GIMP_ALIGN_TOP: alignment = GIMP_ALIGN_BOTTOM; break;
case GIMP_ALIGN_BOTTOM: alignment = GIMP_ALIGN_TOP; break;
default:
g_return_if_reached ();
}
g_object_set (options, "preview-alignment", alignment, NULL);
}
else if (state & gimp_get_toggle_behavior_mask ())
{
GimpItem *item = GIMP_ITEM (filter_tool->drawable);
GimpAlignmentType alignment;
gdouble position;
/* switch orientation */
switch (options->preview_alignment)
{
case GIMP_ALIGN_LEFT: alignment = GIMP_ALIGN_TOP; break;
case GIMP_ALIGN_RIGHT: alignment = GIMP_ALIGN_BOTTOM; break;
case GIMP_ALIGN_TOP: alignment = GIMP_ALIGN_LEFT; break;
case GIMP_ALIGN_BOTTOM: alignment = GIMP_ALIGN_RIGHT; break;
default:
g_return_if_reached ();
}
if (alignment == GIMP_ALIGN_LEFT ||
alignment == GIMP_ALIGN_RIGHT)
{
position = ((coords->x - gimp_item_get_offset_x (item)) /
gimp_item_get_width (item));
}
else
{
position = ((coords->y - gimp_item_get_offset_y (item)) /
gimp_item_get_height (item));
}
g_object_set (options,
"preview-alignment", alignment,
"preview-position", CLAMP (position, 0.0, 1.0),
NULL);
}
else
{
gimp_guide_tool_start_edit (tool, display,
filter_tool->percent_guide);
}
}
}
static gboolean
gimp_filter_tool_key_press (GimpTool *tool,
GdkEventKey *kevent,
GimpDisplay *display)
{
GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (tool);
if (filter_tool->gui && display == tool->display)
{
switch (kevent->keyval)
{
case GDK_KEY_Return:
case GDK_KEY_KP_Enter:
case GDK_KEY_ISO_Enter:
gimp_filter_tool_response (filter_tool->gui,
GTK_RESPONSE_OK,
filter_tool);
return TRUE;
case GDK_KEY_BackSpace:
gimp_filter_tool_response (filter_tool->gui,
RESPONSE_RESET,
filter_tool);
return TRUE;
case GDK_KEY_Escape:
gimp_filter_tool_response (filter_tool->gui,
GTK_RESPONSE_CANCEL,
filter_tool);
return TRUE;
}
}
return FALSE;
}
static void
gimp_filter_tool_oper_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display)
{
GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (tool);
gimp_tool_pop_status (tool, display);
if (! gimp_filter_tool_on_guide (filter_tool, coords, display))
{
GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state,
proximity, display);
}
else
{
GdkModifierType extend_mask = gimp_get_extend_selection_mask ();
GdkModifierType toggle_mask = gimp_get_toggle_behavior_mask ();
gchar *status = NULL;
if (state & extend_mask)
{
status = g_strdup (_("Click to switch the original and filtered sides"));
}
else if (state & toggle_mask)
{
status = g_strdup (_("Click to switch between vertical and horizontal"));
}
else
{
status = gimp_suggest_modifiers (_("Click to move the split guide"),
(extend_mask | toggle_mask) & ~state,
_("%s: switch original and filtered"),
_("%s: switch horizontal and vertical"),
NULL);
}
if (proximity)
gimp_tool_push_status (tool, display, "%s", status);
g_free (status);
}
}
static void
gimp_filter_tool_cursor_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display)
{
GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (tool);
if (! gimp_filter_tool_on_guide (filter_tool, coords, display))
{
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state,
display);
}
else
{
gimp_tool_set_cursor (tool, display,
GIMP_CURSOR_MOUSE,
GIMP_TOOL_CURSOR_HAND,
GIMP_CURSOR_MODIFIER_MOVE);
}
}
static void
gimp_filter_tool_options_notify (GimpTool *tool,
GimpToolOptions *options,
const GParamSpec *pspec)
{
GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (tool);
GimpFilterOptions *filter_options = GIMP_FILTER_OPTIONS (options);
if (! strcmp (pspec->name, "preview") &&
filter_tool->filter)
{
if (filter_options->preview)
{
gimp_drawable_filter_apply (filter_tool->filter, NULL);
if (filter_options->preview_split)
gimp_filter_tool_add_guide (filter_tool);
}
else
{
gimp_drawable_filter_abort (filter_tool->filter);
if (filter_options->preview_split)
gimp_filter_tool_remove_guide (filter_tool);
}
}
else if (! strcmp (pspec->name, "preview-split") &&
filter_tool->filter)
{
if (filter_options->preview_split)
{
GimpDisplayShell *shell = gimp_display_get_shell (tool->display);
GimpItem *item = GIMP_ITEM (filter_tool->drawable);
gint x, y, width, height;
gimp_display_shell_untransform_viewport (shell,
&x, &y, &width, &height);
if (gimp_rectangle_intersect (gimp_item_get_offset_x (item),
gimp_item_get_offset_y (item),
gimp_item_get_width (item),
gimp_item_get_height (item),
x, y, width, height,
&x, &y, &width, &height))
{
gdouble position;
if (filter_options->preview_alignment == GIMP_ALIGN_LEFT ||
filter_options->preview_alignment == GIMP_ALIGN_RIGHT)
{
position = ((gdouble) ((x + width / 2) -
gimp_item_get_offset_x (item)) /
(gdouble) gimp_item_get_width (item));
}
else
{
position = ((gdouble) ((y + height / 2) -
gimp_item_get_offset_y (item)) /
(gdouble) gimp_item_get_height (item));
}
g_object_set (options,
"preview-position", CLAMP (position, 0.0, 1.0),
NULL);
}
}
gimp_drawable_filter_set_preview (filter_tool->filter,
filter_options->preview_split,
filter_options->preview_alignment,
filter_options->preview_position);
if (filter_options->preview_split)
gimp_filter_tool_add_guide (filter_tool);
else
gimp_filter_tool_remove_guide (filter_tool);
}
else if (! strcmp (pspec->name, "preview-alignment") &&
filter_tool->filter)
{
gimp_drawable_filter_set_preview (filter_tool->filter,
filter_options->preview_split,
filter_options->preview_alignment,
filter_options->preview_position);
if (filter_options->preview_split)
gimp_filter_tool_move_guide (filter_tool);
}
else if (! strcmp (pspec->name, "preview-position") &&
filter_tool->filter)
{
gimp_drawable_filter_set_preview (filter_tool->filter,
filter_options->preview_split,
filter_options->preview_alignment,
filter_options->preview_position);
if (filter_options->preview_split)
gimp_filter_tool_move_guide (filter_tool);
}
else if (! strcmp (pspec->name, "region") &&
filter_tool->filter)
{
gimp_drawable_filter_set_region (filter_tool->filter,
filter_options->region);
}
else if (! strcmp (pspec->name, "gamma-hack") &&
filter_tool->filter)
{
gimp_drawable_filter_set_gamma_hack (filter_tool->filter,
filter_options->gamma_hack);
}
}
static gboolean
gimp_filter_tool_pick_color (GimpColorTool *color_tool,
gint x,
gint y,
const Babl **sample_format,
gpointer pixel,
GimpRGB *color)
{
GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (color_tool);
gint off_x, off_y;
gimp_item_get_offset (GIMP_ITEM (filter_tool->drawable), &off_x, &off_y);
*sample_format = gimp_drawable_get_format (filter_tool->drawable);
return gimp_pickable_pick_color (GIMP_PICKABLE (filter_tool->drawable),
x - off_x,
y - off_y,
color_tool->options->sample_average,
color_tool->options->average_radius,
pixel, color);
}
static void
gimp_filter_tool_color_picked (GimpColorTool *color_tool,
GimpColorPickState pick_state,
gdouble x,
gdouble y,
const Babl *sample_format,
gpointer pixel,
const GimpRGB *color)
{
GimpFilterTool *filter_tool = GIMP_FILTER_TOOL (color_tool);
gpointer identifier;
g_return_if_fail (GTK_IS_WIDGET (filter_tool->active_picker));
identifier = g_object_get_data (G_OBJECT (filter_tool->active_picker),
"picker-identifier");
GIMP_FILTER_TOOL_GET_CLASS (filter_tool)->color_picked (filter_tool,
identifier,
x, y,
sample_format,
color);
}
static void
gimp_filter_tool_real_reset (GimpFilterTool *filter_tool)
{
if (filter_tool->config)
{
if (filter_tool->default_config)
{
gimp_config_copy (GIMP_CONFIG (filter_tool->default_config),
GIMP_CONFIG (filter_tool->config),
0);
}
else
{
gimp_config_reset (GIMP_CONFIG (filter_tool->config));
}
}
}
static void
gimp_filter_tool_halt (GimpFilterTool *filter_tool)
{
GimpTool *tool = GIMP_TOOL (filter_tool);
if (filter_tool->gui)
gimp_tool_gui_hide (filter_tool->gui);
if (filter_tool->filter)
{
gimp_drawable_filter_abort (filter_tool->filter);
g_object_unref (filter_tool->filter);
filter_tool->filter = NULL;
gimp_filter_tool_remove_guide (filter_tool);
}
tool->drawable = NULL;
}
static void
gimp_filter_tool_commit (GimpFilterTool *filter_tool)
{
GimpTool *tool = GIMP_TOOL (filter_tool);
if (filter_tool->gui)
gimp_tool_gui_hide (filter_tool->gui);
if (filter_tool->filter)
{
GimpFilterOptions *options = GIMP_FILTER_TOOL_GET_OPTIONS (tool);
if (! options->preview)
gimp_drawable_filter_apply (filter_tool->filter, NULL);
gimp_tool_control_push_preserve (tool->control, TRUE);
gimp_drawable_filter_commit (filter_tool->filter,
GIMP_PROGRESS (tool), TRUE);
g_object_unref (filter_tool->filter);
filter_tool->filter = NULL;
gimp_tool_control_pop_preserve (tool->control);
gimp_filter_tool_remove_guide (filter_tool);
gimp_image_flush (gimp_display_get_image (tool->display));
if (filter_tool->config && filter_tool->settings_box)
{
GimpGuiConfig *config = GIMP_GUI_CONFIG (tool->tool_info->gimp->config);
gimp_settings_box_add_current (GIMP_SETTINGS_BOX (filter_tool->settings_box),
config->filter_tool_max_recent);
}
}
tool->display = NULL;
tool->drawable = NULL;
}
static void
gimp_filter_tool_dialog (GimpFilterTool *filter_tool)
{
GIMP_FILTER_TOOL_GET_CLASS (filter_tool)->dialog (filter_tool);
g_signal_connect (gimp_tool_gui_get_dialog (filter_tool->gui), "unmap",
G_CALLBACK (gimp_filter_tool_dialog_unmap),
filter_tool);
}
static void
gimp_filter_tool_dialog_unmap (GtkWidget *dialog,
GimpFilterTool *filter_tool)
{
if (filter_tool->active_picker)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (filter_tool->active_picker),
FALSE);
}
static void
gimp_filter_tool_reset (GimpFilterTool *filter_tool)
{
if (filter_tool->config)
g_object_freeze_notify (filter_tool->config);
GIMP_FILTER_TOOL_GET_CLASS (filter_tool)->reset (filter_tool);
if (filter_tool->config)
g_object_thaw_notify (filter_tool->config);
}
static void
gimp_filter_tool_create_map (GimpFilterTool *filter_tool)
{
GimpFilterOptions *options = GIMP_FILTER_TOOL_GET_OPTIONS (filter_tool);
if (filter_tool->filter)
{
gimp_drawable_filter_abort (filter_tool->filter);
g_object_unref (filter_tool->filter);
}
g_assert (filter_tool->operation);
filter_tool->filter = gimp_drawable_filter_new (filter_tool->drawable,
filter_tool->undo_desc,
filter_tool->operation,
filter_tool->icon_name);
gimp_drawable_filter_set_region (filter_tool->filter, options->region);
g_signal_connect (filter_tool->filter, "flush",
G_CALLBACK (gimp_filter_tool_flush),
filter_tool);
gimp_gegl_progress_connect (filter_tool->operation,
GIMP_PROGRESS (filter_tool),
filter_tool->undo_desc);
if (options->preview)
gimp_drawable_filter_apply (filter_tool->filter, NULL);
}
static void
gimp_filter_tool_flush (GimpDrawableFilter *filter,
GimpFilterTool *filter_tool)
{
GimpTool *tool = GIMP_TOOL (filter_tool);
GimpImage *image = gimp_display_get_image (tool->display);
gimp_projection_flush (gimp_image_get_projection (image));
}
static void
gimp_filter_tool_config_notify (GObject *object,
const GParamSpec *pspec,
GimpFilterTool *filter_tool)
{
GimpFilterOptions *options = GIMP_FILTER_TOOL_GET_OPTIONS (filter_tool);
if (filter_tool->filter && options->preview)
gimp_drawable_filter_apply (filter_tool->filter, NULL);
}
static void
gimp_filter_tool_add_guide (GimpFilterTool *filter_tool)
{
GimpFilterOptions *options = GIMP_FILTER_TOOL_GET_OPTIONS (filter_tool);
GimpItem *item;
GimpImage *image;
GimpOrientationType orientation;
gint position;
if (filter_tool->percent_guide)
return;
item = GIMP_ITEM (filter_tool->drawable);
image = gimp_item_get_image (item);
if (options->preview_alignment == GIMP_ALIGN_LEFT ||
options->preview_alignment == GIMP_ALIGN_RIGHT)
{
orientation = GIMP_ORIENTATION_VERTICAL;
position = (gimp_item_get_offset_x (item) +
gimp_item_get_width (item) *
options->preview_position);
}
else
{
orientation = GIMP_ORIENTATION_HORIZONTAL;
position = (gimp_item_get_offset_y (item) +
gimp_item_get_height (item) *
options->preview_position);
}
filter_tool->percent_guide =
gimp_guide_custom_new (orientation,
image->gimp->next_guide_ID++,
GIMP_GUIDE_STYLE_SPLIT_VIEW);
gimp_image_add_guide (image, filter_tool->percent_guide, position);
g_signal_connect (filter_tool->percent_guide, "removed",
G_CALLBACK (gimp_filter_tool_guide_removed),
filter_tool);
g_signal_connect (filter_tool->percent_guide, "notify::position",
G_CALLBACK (gimp_filter_tool_guide_moved),
filter_tool);
}
static void
gimp_filter_tool_remove_guide (GimpFilterTool *filter_tool)
{
GimpImage *image;
if (! filter_tool->percent_guide)
return;
image = gimp_item_get_image (GIMP_ITEM (filter_tool->drawable));
gimp_image_remove_guide (image, filter_tool->percent_guide, FALSE);
}
static void
gimp_filter_tool_move_guide (GimpFilterTool *filter_tool)
{
GimpFilterOptions *options = GIMP_FILTER_TOOL_GET_OPTIONS (filter_tool);
GimpItem *item;
GimpOrientationType orientation;
gint position;
if (! filter_tool->percent_guide)
return;
item = GIMP_ITEM (filter_tool->drawable);
if (options->preview_alignment == GIMP_ALIGN_LEFT ||
options->preview_alignment == GIMP_ALIGN_RIGHT)
{
orientation = GIMP_ORIENTATION_VERTICAL;
position = (gimp_item_get_offset_x (item) +
gimp_item_get_width (item) *
options->preview_position);
}
else
{
orientation = GIMP_ORIENTATION_HORIZONTAL;
position = (gimp_item_get_offset_y (item) +
gimp_item_get_height (item) *
options->preview_position);
}
if (orientation != gimp_guide_get_orientation (filter_tool->percent_guide) ||
position != gimp_guide_get_position (filter_tool->percent_guide))
{
gimp_guide_set_orientation (filter_tool->percent_guide, orientation);
gimp_image_move_guide (gimp_item_get_image (item),
filter_tool->percent_guide, position, FALSE);
}
}
static void
gimp_filter_tool_guide_removed (GimpGuide *guide,
GimpFilterTool *filter_tool)
{
GimpFilterOptions *options = GIMP_FILTER_TOOL_GET_OPTIONS (filter_tool);
g_signal_handlers_disconnect_by_func (G_OBJECT (filter_tool->percent_guide),
gimp_filter_tool_guide_removed,
filter_tool);
g_signal_handlers_disconnect_by_func (G_OBJECT (filter_tool->percent_guide),
gimp_filter_tool_guide_moved,
filter_tool);
g_object_unref (filter_tool->percent_guide);
filter_tool->percent_guide = NULL;
g_object_set (options,
"preview-split", FALSE,
NULL);
}
static void
gimp_filter_tool_guide_moved (GimpGuide *guide,
const GParamSpec *pspec,
GimpFilterTool *filter_tool)
{
GimpFilterOptions *options = GIMP_FILTER_TOOL_GET_OPTIONS (filter_tool);
GimpItem *item = GIMP_ITEM (filter_tool->drawable);
gdouble position;
if (options->preview_alignment == GIMP_ALIGN_LEFT ||
options->preview_alignment == GIMP_ALIGN_RIGHT)
{
position = ((gdouble) (gimp_guide_get_position (guide) -
gimp_item_get_offset_x (item)) /
(gdouble) gimp_item_get_width (item));
}
else
{
position = ((gdouble) (gimp_guide_get_position (guide) -
gimp_item_get_offset_y (item)) /
(gdouble) gimp_item_get_height (item));
}
g_object_set (options,
"preview-position", CLAMP (position, 0.0, 1.0),
NULL);
}
static void
gimp_filter_tool_response (GimpToolGui *gui,
gint response_id,
GimpFilterTool *filter_tool)
{
GimpTool *tool = GIMP_TOOL (filter_tool);
switch (response_id)
{
case RESPONSE_RESET:
gimp_filter_tool_reset (filter_tool);
break;
case GTK_RESPONSE_OK:
gimp_tool_control (tool, GIMP_TOOL_ACTION_COMMIT, tool->display);
break;
default:
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
break;
}
}
/* public functions */
void
gimp_filter_tool_get_operation (GimpFilterTool *filter_tool)
{
GimpFilterToolClass *klass;
GimpToolInfo *tool_info;
gchar *operation_name;
g_return_if_fail (GIMP_IS_FILTER_TOOL (filter_tool));
klass = GIMP_FILTER_TOOL_GET_CLASS (filter_tool);
tool_info = GIMP_TOOL (filter_tool)->tool_info;
if (filter_tool->filter)
{
gimp_drawable_filter_abort (filter_tool->filter);
g_object_unref (filter_tool->filter);
filter_tool->filter = NULL;
}
if (filter_tool->operation)
{
g_object_unref (filter_tool->operation);
filter_tool->operation = NULL;
}
if (filter_tool->config)
{
g_signal_handlers_disconnect_by_func (filter_tool->config,
gimp_filter_tool_config_notify,
filter_tool);
g_object_unref (filter_tool->config);
filter_tool->config = NULL;
}
if (filter_tool->default_config)
{
g_object_unref (filter_tool->default_config);
filter_tool->default_config = NULL;
}
if (filter_tool->title)
{
g_free (filter_tool->title);
filter_tool->title = NULL;
}
if (filter_tool->description)
{
g_free (filter_tool->description);
filter_tool->description = NULL;
}
if (filter_tool->undo_desc)
{
g_free (filter_tool->undo_desc);
filter_tool->undo_desc = NULL;
}
if (filter_tool->icon_name)
{
g_free (filter_tool->icon_name);
filter_tool->icon_name = NULL;
}
if (filter_tool->help_id)
{
g_free (filter_tool->help_id);
filter_tool->help_id = NULL;
}
operation_name = klass->get_operation (filter_tool,
&filter_tool->title,
&filter_tool->description,
&filter_tool->undo_desc,
&filter_tool->icon_name,
&filter_tool->help_id);
if (! operation_name)
operation_name = g_strdup ("gegl:nop");
if (! filter_tool->title)
filter_tool->title = g_strdup (tool_info->blurb);
if (! filter_tool->description)
filter_tool->description = g_strdup (filter_tool->title);
if (! filter_tool->undo_desc)
filter_tool->undo_desc = g_strdup (tool_info->blurb);
if (! filter_tool->icon_name)
filter_tool->icon_name =
g_strdup (gimp_viewable_get_icon_name (GIMP_VIEWABLE (tool_info)));
if (! filter_tool->help_id)
filter_tool->help_id = g_strdup (tool_info->help_id);
filter_tool->operation = gegl_node_new_child (NULL,
"operation", operation_name,
NULL);
filter_tool->config = G_OBJECT (gimp_gegl_config_new (operation_name,
filter_tool->icon_name,
GIMP_TYPE_SETTINGS));
gimp_gegl_config_sync_node (GIMP_OBJECT (filter_tool->config),
filter_tool->operation);
gimp_gegl_config_connect_node (GIMP_OBJECT (filter_tool->config),
filter_tool->operation);
if (filter_tool->gui)
{
gimp_tool_gui_set_title (filter_tool->gui, filter_tool->title);
gimp_tool_gui_set_description (filter_tool->gui, filter_tool->description);
gimp_tool_gui_set_icon_name (filter_tool->gui, filter_tool->icon_name);
gimp_tool_gui_set_help_id (filter_tool->gui, filter_tool->help_id);
}
if (gegl_operation_get_key (operation_name, "position-dependent"))
{
if (filter_tool->gui)
gtk_widget_show (filter_tool->region_combo);
}
else
{
if (filter_tool->gui)
gtk_widget_hide (filter_tool->region_combo);
g_object_set (GIMP_FILTER_TOOL_GET_OPTIONS (filter_tool),
"region", GIMP_FILTER_REGION_SELECTION,
NULL);
}
g_free (operation_name);
g_object_set (GIMP_FILTER_TOOL_GET_OPTIONS (filter_tool),
"preview-split", FALSE,
"preview-position", 0.5,
NULL);
if (filter_tool->config)
g_signal_connect_object (filter_tool->config, "notify",
G_CALLBACK (gimp_filter_tool_config_notify),
G_OBJECT (filter_tool), 0);
if (GIMP_TOOL (filter_tool)->drawable)
gimp_filter_tool_create_map (filter_tool);
}
void
gimp_filter_tool_edit_as (GimpFilterTool *filter_tool,
const gchar *new_tool_id,
GimpConfig *config)
{
GimpDisplay *display;
GimpContext *user_context;
GimpToolInfo *tool_info;
GimpTool *new_tool;
g_return_if_fail (GIMP_IS_FILTER_TOOL (filter_tool));
g_return_if_fail (new_tool_id != NULL);
g_return_if_fail (GIMP_IS_CONFIG (config));
display = GIMP_TOOL (filter_tool)->display;
user_context = gimp_get_user_context (display->gimp);
tool_info = (GimpToolInfo *)
gimp_container_get_child_by_name (display->gimp->tool_info_list,
new_tool_id);
gimp_tool_control (GIMP_TOOL (filter_tool), GIMP_TOOL_ACTION_HALT, display);
gimp_context_set_tool (user_context, tool_info);
tool_manager_initialize_active (display->gimp, display);
new_tool = tool_manager_get_active (display->gimp);
GIMP_FILTER_TOOL (new_tool)->default_config = g_object_ref (config);
gimp_filter_tool_reset (GIMP_FILTER_TOOL (new_tool));
}
gboolean
gimp_filter_tool_on_guide (GimpFilterTool *filter_tool,
const GimpCoords *coords,
GimpDisplay *display)
{
GimpDisplayShell *shell;
g_return_val_if_fail (GIMP_IS_FILTER_TOOL (filter_tool), FALSE);
g_return_val_if_fail (coords != NULL, FALSE);
g_return_val_if_fail (GIMP_IS_DISPLAY (display), FALSE);
shell = gimp_display_get_shell (display);
if (filter_tool->filter &&
filter_tool->percent_guide &&
gimp_display_shell_get_show_guides (shell))
{
const gint snap_distance = display->config->snap_distance;
GimpOrientationType orientation;
gint position;
orientation = gimp_guide_get_orientation (filter_tool->percent_guide);
position = gimp_guide_get_position (filter_tool->percent_guide);
if (orientation == GIMP_ORIENTATION_HORIZONTAL)
{
if (fabs (coords->y - position) <= FUNSCALEY (shell, snap_distance))
return TRUE;
}
else
{
if (fabs (coords->x - position) <= FUNSCALEX (shell, snap_distance))
return TRUE;
}
}
return FALSE;
}
GtkWidget *
gimp_filter_tool_dialog_get_vbox (GimpFilterTool *filter_tool)
{
g_return_val_if_fail (GIMP_IS_FILTER_TOOL (filter_tool), NULL);
return gimp_tool_gui_get_vbox (filter_tool->gui);
}
static void
gimp_filter_tool_color_picker_toggled (GtkWidget *widget,
GimpFilterTool *filter_tool)
{
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
{
if (filter_tool->active_picker == widget)
return;
if (filter_tool->active_picker)
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (filter_tool->active_picker),
FALSE);
filter_tool->active_picker = widget;
gimp_color_tool_enable (GIMP_COLOR_TOOL (filter_tool),
GIMP_COLOR_TOOL_GET_OPTIONS (filter_tool));
}
else if (filter_tool->active_picker == widget)
{
filter_tool->active_picker = NULL;
gimp_color_tool_disable (GIMP_COLOR_TOOL (filter_tool));
}
}
GtkWidget *
gimp_filter_tool_add_color_picker (GimpFilterTool *filter_tool,
gpointer identifier,
const gchar *icon_name,
const gchar *tooltip)
{
GtkWidget *button;
GtkWidget *image;
g_return_val_if_fail (GIMP_IS_FILTER_TOOL (filter_tool), NULL);
g_return_val_if_fail (icon_name != NULL, NULL);
button = g_object_new (GTK_TYPE_TOGGLE_BUTTON,
"draw-indicator", FALSE,
NULL);
image = gtk_image_new_from_icon_name (icon_name, GTK_ICON_SIZE_BUTTON);
gtk_misc_set_padding (GTK_MISC (image), 2, 2);
gtk_container_add (GTK_CONTAINER (button), image);
gtk_widget_show (image);
if (tooltip)
gimp_help_set_help_data (button, tooltip, NULL);
g_object_set_data (G_OBJECT (button), "picker-identifier", identifier);
g_signal_connect (button, "toggled",
G_CALLBACK (gimp_filter_tool_color_picker_toggled),
filter_tool);
return button;
}
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