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PIKApp/app/tools/pikafiltertool.c

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/* PIKA - Photo and Image Kooker Application
* a rebranding of The GNU Image Manipulation Program (created with heckimp)
* A derived work which may be trivial. However, any changes may be (C)2023 by Aldercone Studio
*
* Original copyright, applying to most contents (license remains unchanged):
* 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 <https://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/pikadrawablefilter.c.
*/
#include "config.h"
#include <gegl.h>
#include <gegl-plugin.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libpikabase/pikabase.h"
#include "libpikaconfig/pikaconfig.h"
#include "libpikamath/pikamath.h"
#include "libpikawidgets/pikawidgets.h"
#include "tools-types.h"
#include "config/pikaguiconfig.h"
#include "operations/pika-operation-config.h"
#include "operations/pikaoperationsettings.h"
#include "gegl/pika-gegl-utils.h"
#include "core/pika.h"
#include "core/pikachannel.h"
#include "core/pikadrawable.h"
#include "core/pikadrawablefilter.h"
#include "core/pikaerror.h"
#include "core/pikaguide.h"
#include "core/pikaimage.h"
#include "core/pikaimage-guides.h"
#include "core/pikaimage-pick-color.h"
#include "core/pikalayer.h"
#include "core/pikalist.h"
#include "core/pikapickable.h"
#include "core/pikaprogress.h"
#include "core/pikaprojection.h"
#include "core/pikasettings.h"
#include "core/pikatoolinfo.h"
#include "widgets/pikalayermodebox.h"
#include "widgets/pikapropwidgets.h"
#include "widgets/pikasettingsbox.h"
#include "widgets/pikawidgets-utils.h"
#include "display/pikadisplay.h"
#include "display/pikadisplayshell.h"
#include "display/pikadisplayshell-appearance.h"
#include "display/pikadisplayshell-transform.h"
#include "display/pikatoolgui.h"
#include "display/pikatoolwidget.h"
#include "pikafilteroptions.h"
#include "pikafiltertool.h"
#include "pikafiltertool-settings.h"
#include "pikafiltertool-widgets.h"
#include "pikaguidetool.h"
#include "pikatoolcontrol.h"
#include "pikatools-utils.h"
#include "tool_manager.h"
#include "pika-intl.h"
/* local function prototypes */
static void pika_filter_tool_finalize (GObject *object);
static gboolean pika_filter_tool_initialize (PikaTool *tool,
PikaDisplay *display,
GError **error);
static void pika_filter_tool_control (PikaTool *tool,
PikaToolAction action,
PikaDisplay *display);
static void pika_filter_tool_button_press (PikaTool *tool,
const PikaCoords *coords,
guint32 time,
GdkModifierType state,
PikaButtonPressType press_type,
PikaDisplay *display);
static void pika_filter_tool_button_release (PikaTool *tool,
const PikaCoords *coords,
guint32 time,
GdkModifierType state,
PikaButtonReleaseType release_type,
PikaDisplay *display);
static void pika_filter_tool_motion (PikaTool *tool,
const PikaCoords *coords,
guint32 time,
GdkModifierType state,
PikaDisplay *display);
static gboolean pika_filter_tool_key_press (PikaTool *tool,
GdkEventKey *kevent,
PikaDisplay *display);
static void pika_filter_tool_oper_update (PikaTool *tool,
const PikaCoords *coords,
GdkModifierType state,
gboolean proximity,
PikaDisplay *display);
static void pika_filter_tool_cursor_update (PikaTool *tool,
const PikaCoords *coords,
GdkModifierType state,
PikaDisplay *display);
static void pika_filter_tool_options_notify (PikaTool *tool,
PikaToolOptions *options,
const GParamSpec *pspec);
static gboolean pika_filter_tool_can_pick_color (PikaColorTool *color_tool,
const PikaCoords *coords,
PikaDisplay *display);
static gboolean pika_filter_tool_pick_color (PikaColorTool *color_tool,
const PikaCoords *coords,
PikaDisplay *display,
const Babl **sample_format,
gpointer pixel,
PikaRGB *color);
static void pika_filter_tool_color_picked (PikaColorTool *color_tool,
const PikaCoords *coords,
PikaDisplay *display,
PikaColorPickState pick_state,
const Babl *sample_format,
gpointer pixel,
const PikaRGB *color);
static void pika_filter_tool_real_reset (PikaFilterTool *filter_tool);
static void pika_filter_tool_real_set_config(PikaFilterTool *filter_tool,
PikaConfig *config);
static void pika_filter_tool_real_config_notify
(PikaFilterTool *filter_tool,
PikaConfig *config,
const GParamSpec *pspec);
static void pika_filter_tool_halt (PikaFilterTool *filter_tool);
static void pika_filter_tool_commit (PikaFilterTool *filter_tool);
static void pika_filter_tool_dialog (PikaFilterTool *filter_tool);
static void pika_filter_tool_reset (PikaFilterTool *filter_tool);
static void pika_filter_tool_create_filter (PikaFilterTool *filter_tool);
static void pika_filter_tool_update_dialog (PikaFilterTool *filter_tool);
static void pika_filter_tool_update_dialog_operation_settings
(PikaFilterTool *filter_tool);
static void pika_filter_tool_region_changed (PikaFilterTool *filter_tool);
static void pika_filter_tool_flush (PikaDrawableFilter *filter,
PikaFilterTool *filter_tool);
static void pika_filter_tool_config_notify (GObject *object,
const GParamSpec *pspec,
PikaFilterTool *filter_tool);
static void pika_filter_tool_unset_setting (GObject *object,
const GParamSpec *pspec,
PikaFilterTool *filter_tool);
static void pika_filter_tool_lock_position_changed
(PikaDrawable *drawable,
PikaFilterTool *filter_tool);
static void pika_filter_tool_mask_changed (PikaImage *image,
PikaFilterTool *filter_tool);
static void pika_filter_tool_add_guide (PikaFilterTool *filter_tool);
static void pika_filter_tool_remove_guide (PikaFilterTool *filter_tool);
static void pika_filter_tool_move_guide (PikaFilterTool *filter_tool);
static void pika_filter_tool_guide_removed (PikaGuide *guide,
PikaFilterTool *filter_tool);
static void pika_filter_tool_guide_moved (PikaGuide *guide,
const GParamSpec *pspec,
PikaFilterTool *filter_tool);
static void pika_filter_tool_response (PikaToolGui *gui,
gint response_id,
PikaFilterTool *filter_tool);
static void pika_filter_tool_update_filter (PikaFilterTool *filter_tool);
static void pika_filter_tool_set_has_settings (PikaFilterTool *filter_tool,
gboolean has_settings);
G_DEFINE_TYPE (PikaFilterTool, pika_filter_tool, PIKA_TYPE_COLOR_TOOL)
#define parent_class pika_filter_tool_parent_class
static void
pika_filter_tool_class_init (PikaFilterToolClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
PikaToolClass *tool_class = PIKA_TOOL_CLASS (klass);
PikaColorToolClass *color_tool_class = PIKA_COLOR_TOOL_CLASS (klass);
object_class->finalize = pika_filter_tool_finalize;
tool_class->initialize = pika_filter_tool_initialize;
tool_class->control = pika_filter_tool_control;
tool_class->button_press = pika_filter_tool_button_press;
tool_class->button_release = pika_filter_tool_button_release;
tool_class->motion = pika_filter_tool_motion;
tool_class->key_press = pika_filter_tool_key_press;
tool_class->oper_update = pika_filter_tool_oper_update;
tool_class->cursor_update = pika_filter_tool_cursor_update;
tool_class->options_notify = pika_filter_tool_options_notify;
color_tool_class->can_pick = pika_filter_tool_can_pick_color;
color_tool_class->pick = pika_filter_tool_pick_color;
color_tool_class->picked = pika_filter_tool_color_picked;
klass->get_operation = NULL;
klass->dialog = NULL;
klass->reset = pika_filter_tool_real_reset;
klass->set_config = pika_filter_tool_real_set_config;
klass->config_notify = pika_filter_tool_real_config_notify;
klass->settings_import = pika_filter_tool_real_settings_import;
klass->settings_export = pika_filter_tool_real_settings_export;
}
static void
pika_filter_tool_init (PikaFilterTool *filter_tool)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
pika_tool_control_set_scroll_lock (tool->control, TRUE);
pika_tool_control_set_preserve (tool->control, FALSE);
pika_tool_control_set_dirty_mask (tool->control,
PIKA_DIRTY_IMAGE |
PIKA_DIRTY_IMAGE_STRUCTURE |
PIKA_DIRTY_DRAWABLE |
PIKA_DIRTY_ACTIVE_DRAWABLE);
pika_tool_control_set_active_modifiers (tool->control,
PIKA_TOOL_ACTIVE_MODIFIERS_SEPARATE);
}
static void
pika_filter_tool_finalize (GObject *object)
{
PikaFilterTool *filter_tool = PIKA_FILTER_TOOL (object);
g_clear_object (&filter_tool->operation);
g_clear_object (&filter_tool->config);
g_clear_object (&filter_tool->default_config);
g_clear_object (&filter_tool->settings);
g_clear_pointer (&filter_tool->description, g_free);
g_clear_object (&filter_tool->gui);
filter_tool->settings_box = NULL;
filter_tool->controller_toggle = NULL;
filter_tool->clip_combo = NULL;
filter_tool->region_combo = NULL;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
#define RESPONSE_RESET 1
static gboolean
pika_filter_tool_initialize (PikaTool *tool,
PikaDisplay *display,
GError **error)
{
PikaFilterTool *filter_tool = PIKA_FILTER_TOOL (tool);
PikaToolInfo *tool_info = tool->tool_info;
PikaGuiConfig *config = PIKA_GUI_CONFIG (display->pika->config);
PikaImage *image = pika_display_get_image (display);
PikaDisplayShell *shell = pika_display_get_shell (display);
PikaItem *locked_item = NULL;
GList *drawables = pika_image_get_selected_drawables (image);
PikaDrawable *drawable;
if (g_list_length (drawables) != 1)
{
if (g_list_length (drawables) > 1)
g_set_error_literal (error, PIKA_ERROR, PIKA_FAILED,
_("Cannot modify multiple drawables. Select only one."));
else
g_set_error_literal (error, PIKA_ERROR, PIKA_FAILED, _("No selected drawables."));
g_list_free (drawables);
return FALSE;
}
drawable = drawables->data;
if (pika_viewable_get_children (PIKA_VIEWABLE (drawable)))
{
g_set_error_literal (error, PIKA_ERROR, PIKA_FAILED,
_("Cannot modify the pixels of layer groups."));
g_list_free (drawables);
return FALSE;
}
if (pika_item_is_content_locked (PIKA_ITEM (drawable), &locked_item))
{
g_set_error_literal (error, PIKA_ERROR, PIKA_FAILED,
_("A selected item's pixels are locked."));
if (error)
pika_tools_blink_lock_box (display->pika, locked_item);
g_list_free (drawables);
return FALSE;
}
if (! pika_item_is_visible (PIKA_ITEM (drawable)) &&
! config->edit_non_visible)
{
g_set_error_literal (error, PIKA_ERROR, PIKA_FAILED,
_("A selected layer is not visible."));
g_list_free (drawables);
return FALSE;
}
pika_filter_tool_get_operation (filter_tool);
pika_filter_tool_disable_color_picking (filter_tool);
tool->display = display;
g_list_free (tool->drawables);
tool->drawables = drawables;
if (filter_tool->config)
pika_config_reset (PIKA_CONFIG (filter_tool->config));
if (! filter_tool->gui)
{
GtkWidget *vbox;
GtkWidget *hbox;
GtkWidget *toggle;
/* disabled for at least PIKA 2.8 */
filter_tool->overlay = FALSE;
filter_tool->gui =
pika_tool_gui_new (tool_info,
pika_tool_get_label (tool),
filter_tool->description,
pika_tool_get_icon_name (tool),
pika_tool_get_help_id (tool),
pika_widget_get_monitor (GTK_WIDGET (shell)),
filter_tool->overlay,
_("_Reset"), RESPONSE_RESET,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_OK"), GTK_RESPONSE_OK,
NULL);
pika_tool_gui_set_default_response (filter_tool->gui, GTK_RESPONSE_OK);
pika_tool_gui_set_alternative_button_order (filter_tool->gui,
RESPONSE_RESET,
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
vbox = pika_tool_gui_get_vbox (filter_tool->gui);
g_signal_connect_object (filter_tool->gui, "response",
G_CALLBACK (pika_filter_tool_response),
G_OBJECT (filter_tool), 0);
if (filter_tool->config)
{
filter_tool->settings_box =
pika_filter_tool_get_settings_box (filter_tool);
gtk_box_pack_start (GTK_BOX (vbox), filter_tool->settings_box,
FALSE, FALSE, 0);
if (filter_tool->has_settings)
gtk_widget_show (filter_tool->settings_box);
}
/* 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 = pika_prop_check_button_new (G_OBJECT (tool_info->tool_options),
"preview", NULL);
gtk_box_pack_start (GTK_BOX (hbox), toggle, TRUE, TRUE, 0);
toggle = pika_prop_check_button_new (G_OBJECT (tool_info->tool_options),
"preview-split", NULL);
gtk_box_pack_start (GTK_BOX (hbox), toggle, FALSE, FALSE, 0);
g_object_bind_property (G_OBJECT (tool_info->tool_options), "preview",
toggle, "sensitive",
G_BINDING_SYNC_CREATE);
/* The show-controller toggle */
filter_tool->controller_toggle =
pika_prop_check_button_new (G_OBJECT (tool_info->tool_options),
"controller", NULL);
gtk_box_pack_end (GTK_BOX (vbox), filter_tool->controller_toggle,
FALSE, FALSE, 0);
if (! filter_tool->widget)
gtk_widget_hide (filter_tool->controller_toggle);
/* The operation-settings box */
filter_tool->operation_settings_box = gtk_box_new (
GTK_ORIENTATION_VERTICAL, 2);
gtk_box_pack_end (GTK_BOX (vbox), filter_tool->operation_settings_box,
FALSE, FALSE, 0);
gtk_widget_show (filter_tool->operation_settings_box);
pika_filter_tool_update_dialog_operation_settings (filter_tool);
/* Fill in subclass widgets */
pika_filter_tool_dialog (filter_tool);
}
else
{
pika_tool_gui_set_title (filter_tool->gui,
pika_tool_get_label (tool));
pika_tool_gui_set_description (filter_tool->gui, filter_tool->description);
pika_tool_gui_set_icon_name (filter_tool->gui,
pika_tool_get_icon_name (tool));
pika_tool_gui_set_help_id (filter_tool->gui,
pika_tool_get_help_id (tool));
}
pika_tool_gui_set_shell (filter_tool->gui, shell);
pika_tool_gui_set_viewable (filter_tool->gui, PIKA_VIEWABLE (drawable));
pika_tool_gui_show (filter_tool->gui);
g_signal_connect_object (drawable, "lock-position-changed",
G_CALLBACK (pika_filter_tool_lock_position_changed),
filter_tool, 0);
g_signal_connect_object (image, "mask-changed",
G_CALLBACK (pika_filter_tool_mask_changed),
filter_tool, 0);
pika_filter_tool_mask_changed (image, filter_tool);
pika_filter_tool_create_filter (filter_tool);
return TRUE;
}
static void
pika_filter_tool_control (PikaTool *tool,
PikaToolAction action,
PikaDisplay *display)
{
PikaFilterTool *filter_tool = PIKA_FILTER_TOOL (tool);
switch (action)
{
case PIKA_TOOL_ACTION_PAUSE:
case PIKA_TOOL_ACTION_RESUME:
break;
case PIKA_TOOL_ACTION_HALT:
pika_filter_tool_halt (filter_tool);
break;
case PIKA_TOOL_ACTION_COMMIT:
pika_filter_tool_commit (filter_tool);
break;
}
PIKA_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static void
pika_filter_tool_button_press (PikaTool *tool,
const PikaCoords *coords,
guint32 time,
GdkModifierType state,
PikaButtonPressType press_type,
PikaDisplay *display)
{
PikaFilterTool *filter_tool = PIKA_FILTER_TOOL (tool);
if (pika_filter_tool_on_guide (filter_tool, coords, display))
{
PikaFilterOptions *options = PIKA_FILTER_TOOL_GET_OPTIONS (tool);
if (state & pika_get_extend_selection_mask ())
{
pika_filter_options_switch_preview_side (options);
}
else if (state & pika_get_toggle_behavior_mask ())
{
PikaItem *item = PIKA_ITEM (tool->drawables->data);
gint pos_x;
gint pos_y;
pos_x = CLAMP (RINT (coords->x) - pika_item_get_offset_x (item),
0, pika_item_get_width (item));
pos_y = CLAMP (RINT (coords->y) - pika_item_get_offset_y (item),
0, pika_item_get_height (item));
pika_filter_options_switch_preview_orientation (options,
pos_x, pos_y);
}
else
{
pika_guide_tool_start_edit (tool, display,
filter_tool->preview_guide);
}
}
else if (pika_color_tool_is_enabled (PIKA_COLOR_TOOL (tool)))
{
PIKA_TOOL_CLASS (parent_class)->button_press (tool, coords, time, state,
press_type, display);
}
else if (filter_tool->widget)
{
if (pika_tool_widget_button_press (filter_tool->widget, coords, time,
state, press_type))
{
filter_tool->grab_widget = filter_tool->widget;
pika_tool_control_activate (tool->control);
}
}
}
static void
pika_filter_tool_button_release (PikaTool *tool,
const PikaCoords *coords,
guint32 time,
GdkModifierType state,
PikaButtonReleaseType release_type,
PikaDisplay *display)
{
PikaFilterTool *filter_tool = PIKA_FILTER_TOOL (tool);
if (filter_tool->grab_widget)
{
pika_tool_control_halt (tool->control);
pika_tool_widget_button_release (filter_tool->grab_widget,
coords, time, state, release_type);
filter_tool->grab_widget = NULL;
}
else
{
PIKA_TOOL_CLASS (parent_class)->button_release (tool, coords, time, state,
release_type, display);
}
}
static void
pika_filter_tool_motion (PikaTool *tool,
const PikaCoords *coords,
guint32 time,
GdkModifierType state,
PikaDisplay *display)
{
PikaFilterTool *filter_tool = PIKA_FILTER_TOOL (tool);
if (filter_tool->grab_widget)
{
pika_tool_widget_motion (filter_tool->grab_widget, coords, time, state);
}
else
{
PIKA_TOOL_CLASS (parent_class)->motion (tool, coords, time, state,
display);
}
}
static gboolean
pika_filter_tool_key_press (PikaTool *tool,
GdkEventKey *kevent,
PikaDisplay *display)
{
PikaFilterTool *filter_tool = PIKA_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:
pika_filter_tool_response (filter_tool->gui,
GTK_RESPONSE_OK,
filter_tool);
return TRUE;
case GDK_KEY_BackSpace:
pika_filter_tool_response (filter_tool->gui,
RESPONSE_RESET,
filter_tool);
return TRUE;
case GDK_KEY_Escape:
pika_filter_tool_response (filter_tool->gui,
GTK_RESPONSE_CANCEL,
filter_tool);
return TRUE;
}
}
return PIKA_TOOL_CLASS (parent_class)->key_press (tool, kevent, display);
}
static void
pika_filter_tool_oper_update (PikaTool *tool,
const PikaCoords *coords,
GdkModifierType state,
gboolean proximity,
PikaDisplay *display)
{
PikaFilterTool *filter_tool = PIKA_FILTER_TOOL (tool);
pika_tool_pop_status (tool, display);
if (pika_filter_tool_on_guide (filter_tool, coords, display))
{
GdkModifierType extend_mask = pika_get_extend_selection_mask ();
GdkModifierType toggle_mask = pika_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 = pika_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)
pika_tool_push_status (tool, display, "%s", status);
g_free (status);
}
else
{
PIKA_TOOL_CLASS (parent_class)->oper_update (tool, coords, state,
proximity, display);
}
}
static void
pika_filter_tool_cursor_update (PikaTool *tool,
const PikaCoords *coords,
GdkModifierType state,
PikaDisplay *display)
{
PikaFilterTool *filter_tool = PIKA_FILTER_TOOL (tool);
if (pika_filter_tool_on_guide (filter_tool, coords, display))
{
pika_tool_set_cursor (tool, display,
PIKA_CURSOR_MOUSE,
PIKA_TOOL_CURSOR_HAND,
PIKA_CURSOR_MODIFIER_MOVE);
}
else
{
PIKA_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state,
display);
}
}
static void
pika_filter_tool_options_notify (PikaTool *tool,
PikaToolOptions *options,
const GParamSpec *pspec)
{
PikaFilterTool *filter_tool = PIKA_FILTER_TOOL (tool);
PikaFilterOptions *filter_options = PIKA_FILTER_OPTIONS (options);
if (! strcmp (pspec->name, "preview") &&
filter_tool->filter)
{
pika_filter_tool_update_filter (filter_tool);
if (filter_options->preview)
{
pika_drawable_filter_apply (filter_tool->filter, NULL);
if (filter_options->preview_split)
pika_filter_tool_add_guide (filter_tool);
}
else
{
if (filter_options->preview_split)
pika_filter_tool_remove_guide (filter_tool);
}
}
else if (! strcmp (pspec->name, "preview-split") &&
filter_tool->filter)
{
if (filter_options->preview_split)
{
PikaDisplayShell *shell = pika_display_get_shell (tool->display);
PikaItem *item = PIKA_ITEM (tool->drawables->data);
gint x, y, width, height;
gint position;
pika_display_shell_untransform_viewport (shell, TRUE,
&x, &y, &width, &height);
if (! pika_rectangle_intersect (pika_item_get_offset_x (item),
pika_item_get_offset_y (item),
pika_item_get_width (item),
pika_item_get_height (item),
x, y, width, height,
&x, &y, &width, &height))
{
x = pika_item_get_offset_x (item);
y = pika_item_get_offset_y (item);
width = pika_item_get_width (item);
height = pika_item_get_height (item);
}
if (filter_options->preview_split_alignment == PIKA_ALIGN_LEFT ||
filter_options->preview_split_alignment == PIKA_ALIGN_RIGHT)
{
position = (x + width / 2) - pika_item_get_offset_x (item);
}
else
{
position = (y + height / 2) - pika_item_get_offset_y (item);
}
g_object_set (
options,
"preview-split-position", position,
NULL);
}
pika_filter_tool_update_filter (filter_tool);
if (filter_options->preview_split)
pika_filter_tool_add_guide (filter_tool);
else
pika_filter_tool_remove_guide (filter_tool);
}
else if (! strcmp (pspec->name, "preview-split-alignment") ||
! strcmp (pspec->name, "preview-split-position"))
{
pika_filter_tool_update_filter (filter_tool);
if (filter_options->preview_split)
pika_filter_tool_move_guide (filter_tool);
}
else if (! strcmp (pspec->name, "controller") &&
filter_tool->widget)
{
pika_tool_widget_set_visible (filter_tool->widget,
filter_options->controller);
}
}
static gboolean
pika_filter_tool_can_pick_color (PikaColorTool *color_tool,
const PikaCoords *coords,
PikaDisplay *display)
{
PikaTool *tool = PIKA_TOOL (color_tool);
PikaFilterTool *filter_tool = PIKA_FILTER_TOOL (color_tool);
PikaImage *image = pika_display_get_image (display);
if (! pika_image_equal_selected_drawables (image, tool->drawables))
return FALSE;
return filter_tool->pick_abyss ||
PIKA_COLOR_TOOL_CLASS (parent_class)->can_pick (color_tool,
coords, display);
}
static gboolean
pika_filter_tool_pick_color (PikaColorTool *color_tool,
const PikaCoords *coords,
PikaDisplay *display,
const Babl **sample_format,
gpointer pixel,
PikaRGB *color)
{
PikaTool *tool = PIKA_TOOL (color_tool);
PikaFilterTool *filter_tool = PIKA_FILTER_TOOL (color_tool);
gboolean picked;
g_return_val_if_fail (g_list_length (tool->drawables) == 1, FALSE);
picked = PIKA_COLOR_TOOL_CLASS (parent_class)->pick (color_tool, coords,
display, sample_format,
pixel, color);
if (! picked && filter_tool->pick_abyss)
{
color->r = 0.0;
color->g = 0.0;
color->b = 0.0;
color->a = 0.0;
picked = TRUE;
}
return picked;
}
static void
pika_filter_tool_color_picked (PikaColorTool *color_tool,
const PikaCoords *coords,
PikaDisplay *display,
PikaColorPickState pick_state,
const Babl *sample_format,
gpointer pixel,
const PikaRGB *color)
{
PikaFilterTool *filter_tool = PIKA_FILTER_TOOL (color_tool);
if (filter_tool->active_picker)
{
PikaPickerCallback callback;
gpointer callback_data;
callback = g_object_get_data (G_OBJECT (filter_tool->active_picker),
"picker-callback");
callback_data = g_object_get_data (G_OBJECT (filter_tool->active_picker),
"picker-callback-data");
if (callback)
{
callback (callback_data,
filter_tool->pick_identifier,
coords->x,
coords->y,
sample_format, color);
return;
}
}
PIKA_FILTER_TOOL_GET_CLASS (filter_tool)->color_picked (filter_tool,
filter_tool->pick_identifier,
coords->x,
coords->y,
sample_format, color);
}
static void
pika_filter_tool_real_reset (PikaFilterTool *filter_tool)
{
if (filter_tool->config)
{
if (filter_tool->default_config)
{
pika_config_copy (PIKA_CONFIG (filter_tool->default_config),
PIKA_CONFIG (filter_tool->config),
0);
}
else
{
pika_config_reset (PIKA_CONFIG (filter_tool->config));
}
}
}
static void
pika_filter_tool_real_set_config (PikaFilterTool *filter_tool,
PikaConfig *config)
{
PikaFilterRegion region;
/* copy the "pika-region" property first, to avoid incorrectly adjusting the
* copied operation properties in pika_operation_tool_region_changed().
*/
g_object_get (config,
"pika-region", &region,
NULL);
g_object_set (filter_tool->config,
"pika-region", region,
NULL);
pika_config_copy (PIKA_CONFIG (config),
PIKA_CONFIG (filter_tool->config), 0);
/* reset the "time" property, otherwise explicitly storing the
* config as setting will also copy the time, and the stored object
* will be considered to be among the automatically stored recently
* used settings
*/
g_object_set (filter_tool->config,
"time", (gint64) 0,
NULL);
}
static void
pika_filter_tool_real_config_notify (PikaFilterTool *filter_tool,
PikaConfig *config,
const GParamSpec *pspec)
{
PikaFilterOptions *options = PIKA_FILTER_TOOL_GET_OPTIONS (filter_tool);
if (filter_tool->filter)
{
/* note that we may be called with a NULL pspec. see
* pika_operation_tool_aux_input_notify().
*/
if (pspec)
{
if (! strcmp (pspec->name, "pika-clip") ||
! strcmp (pspec->name, "pika-mode") ||
! strcmp (pspec->name, "pika-opacity") ||
! strcmp (pspec->name, "pika-gamma-hack"))
{
pika_filter_tool_update_filter (filter_tool);
}
else if (! strcmp (pspec->name, "pika-region"))
{
pika_filter_tool_update_filter (filter_tool);
pika_filter_tool_region_changed (filter_tool);
}
}
if (options->preview)
pika_drawable_filter_apply (filter_tool->filter, NULL);
}
}
static void
pika_filter_tool_halt (PikaFilterTool *filter_tool)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
pika_filter_tool_disable_color_picking (filter_tool);
if (tool->display)
{
PikaImage *image = pika_display_get_image (tool->display);
GList *iter;
for (iter = tool->drawables; iter; iter = iter->next)
g_signal_handlers_disconnect_by_func (iter->data,
pika_filter_tool_lock_position_changed,
filter_tool);
g_signal_handlers_disconnect_by_func (image,
pika_filter_tool_mask_changed,
filter_tool);
}
if (filter_tool->gui)
{
/* explicitly clear the dialog contents first, since we might be called
* during the dialog's delete event, in which case the dialog will be
* externally reffed, and will only die *after* pika_filter_tool_halt()
* returns, and, in particular, after filter_tool->config has been
* cleared. we want to make sure the gui is destroyed while
* filter_tool->config is still alive, since the gui's destruction may
* fire signals whose handlers rely on it.
*/
pika_gtk_container_clear (
GTK_CONTAINER (pika_filter_tool_dialog_get_vbox (filter_tool)));
g_clear_object (&filter_tool->gui);
filter_tool->settings_box = NULL;
filter_tool->controller_toggle = NULL;
filter_tool->clip_combo = NULL;
filter_tool->region_combo = NULL;
}
if (filter_tool->filter)
{
pika_drawable_filter_abort (filter_tool->filter);
g_clear_object (&filter_tool->filter);
pika_filter_tool_remove_guide (filter_tool);
}
g_clear_object (&filter_tool->operation);
if (filter_tool->config)
{
g_signal_handlers_disconnect_by_func (filter_tool->config,
pika_filter_tool_config_notify,
filter_tool);
g_signal_handlers_disconnect_by_func (filter_tool->config,
pika_filter_tool_unset_setting,
filter_tool);
g_clear_object (&filter_tool->config);
}
g_clear_object (&filter_tool->default_config);
g_clear_object (&filter_tool->settings);
if (pika_draw_tool_is_active (PIKA_DRAW_TOOL (tool)))
pika_draw_tool_stop (PIKA_DRAW_TOOL (tool));
pika_filter_tool_set_widget (filter_tool, NULL);
tool->display = NULL;
g_list_free (tool->drawables);
tool->drawables = NULL;
}
static void
pika_filter_tool_commit (PikaFilterTool *filter_tool)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
if (filter_tool->gui)
pika_tool_gui_hide (filter_tool->gui);
if (filter_tool->filter)
{
PikaFilterOptions *options = PIKA_FILTER_TOOL_GET_OPTIONS (tool);
if (! options->preview)
pika_drawable_filter_apply (filter_tool->filter, NULL);
pika_tool_control_push_preserve (tool->control, TRUE);
pika_drawable_filter_commit (filter_tool->filter,
PIKA_PROGRESS (tool), TRUE);
g_clear_object (&filter_tool->filter);
pika_tool_control_pop_preserve (tool->control);
pika_filter_tool_remove_guide (filter_tool);
pika_image_flush (pika_display_get_image (tool->display));
if (filter_tool->config && filter_tool->has_settings)
{
PikaGuiConfig *config = PIKA_GUI_CONFIG (tool->tool_info->pika->config);
pika_settings_box_add_current (PIKA_SETTINGS_BOX (filter_tool->settings_box),
config->filter_tool_max_recent);
}
}
}
static void
pika_filter_tool_dialog (PikaFilterTool *filter_tool)
{
PIKA_FILTER_TOOL_GET_CLASS (filter_tool)->dialog (filter_tool);
}
static void
pika_filter_tool_update_dialog_operation_settings (PikaFilterTool *filter_tool)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
PikaFilterOptions *options = PIKA_FILTER_TOOL_GET_OPTIONS (filter_tool);
PikaImage *image = pika_display_get_image (tool->display);
if (filter_tool->operation_settings_box)
{
pika_gtk_container_clear (
GTK_CONTAINER (filter_tool->operation_settings_box));
if (filter_tool->config)
{
GtkWidget *vbox;
GtkWidget *expander;
GtkWidget *frame;
GtkWidget *vbox2;
GtkWidget *mode_box;
GtkWidget *scale;
GtkWidget *toggle;
vbox = filter_tool->operation_settings_box;
/* The clipping combo */
filter_tool->clip_combo =
pika_prop_enum_combo_box_new (filter_tool->config,
"pika-clip",
PIKA_TRANSFORM_RESIZE_ADJUST,
PIKA_TRANSFORM_RESIZE_CLIP);
pika_int_combo_box_set_label (
PIKA_INT_COMBO_BOX (filter_tool->clip_combo), _("Clipping"));
gtk_box_pack_start (GTK_BOX (vbox), filter_tool->clip_combo,
FALSE, FALSE, 0);
/* The region combo */
filter_tool->region_combo =
pika_prop_enum_combo_box_new (filter_tool->config,
"pika-region",
0, 0);
gtk_box_pack_start (GTK_BOX (vbox), filter_tool->region_combo,
FALSE, FALSE, 0);
/* The blending-options expander */
expander = gtk_expander_new (_("Blending Options"));
gtk_box_pack_start (GTK_BOX (vbox), expander,
FALSE, FALSE, 0);
gtk_widget_show (expander);
g_object_bind_property (options, "blending-options-expanded",
expander, "expanded",
G_BINDING_SYNC_CREATE |
G_BINDING_BIDIRECTIONAL);
frame = pika_frame_new (NULL);
gtk_container_add (GTK_CONTAINER (expander), frame);
gtk_widget_show (frame);
vbox2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_container_add (GTK_CONTAINER (frame), vbox2);
gtk_widget_show (vbox2);
/* The mode box */
mode_box = pika_prop_layer_mode_box_new (
filter_tool->config, "pika-mode",
PIKA_LAYER_MODE_CONTEXT_FILTER);
pika_layer_mode_box_set_label (PIKA_LAYER_MODE_BOX (mode_box),
_("Mode"));
gtk_box_pack_start (GTK_BOX (vbox2), mode_box,
FALSE, FALSE, 0);
gtk_widget_show (mode_box);
/* The opacity scale */
scale = pika_prop_spin_scale_new (filter_tool->config,
"pika-opacity",
1.0, 10.0, 1);
pika_prop_widget_set_factor (scale, 100.0, 1.0, 10.0, 1);
gtk_box_pack_start (GTK_BOX (vbox2), scale,
FALSE, FALSE, 0);
gtk_widget_show (scale);
/* The Color Options expander */
expander = gtk_expander_new (_("Advanced Color Options"));
gtk_box_pack_start (GTK_BOX (vbox), expander,
FALSE, FALSE, 0);
g_object_bind_property (image->pika->config,
"filter-tool-show-color-options",
expander, "visible",
G_BINDING_SYNC_CREATE);
g_object_bind_property (options, "color-options-expanded",
expander, "expanded",
G_BINDING_SYNC_CREATE |
G_BINDING_BIDIRECTIONAL);
frame = pika_frame_new (NULL);
gtk_container_add (GTK_CONTAINER (expander), frame);
gtk_widget_show (frame);
vbox2 = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_container_add (GTK_CONTAINER (frame), vbox2);
gtk_widget_show (vbox2);
/* The gamma hack toggle */
toggle = pika_prop_check_button_new (filter_tool->config,
"pika-gamma-hack", NULL);
gtk_box_pack_start (GTK_BOX (vbox2), toggle,
FALSE, FALSE, 0);
gtk_widget_show (toggle);
}
}
}
static void
pika_filter_tool_reset (PikaFilterTool *filter_tool)
{
if (filter_tool->config)
g_object_freeze_notify (filter_tool->config);
PIKA_FILTER_TOOL_GET_CLASS (filter_tool)->reset (filter_tool);
if (filter_tool->config)
g_object_thaw_notify (filter_tool->config);
if (filter_tool->widget)
pika_filter_tool_reset_widget (filter_tool, filter_tool->widget);
}
static void
pika_filter_tool_create_filter (PikaFilterTool *filter_tool)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
PikaFilterOptions *options = PIKA_FILTER_TOOL_GET_OPTIONS (filter_tool);
if (filter_tool->filter)
{
pika_drawable_filter_abort (filter_tool->filter);
g_object_unref (filter_tool->filter);
}
pika_assert (filter_tool->operation);
g_return_if_fail (g_list_length (tool->drawables) == 1);
filter_tool->filter = pika_drawable_filter_new (tool->drawables->data,
pika_tool_get_undo_desc (tool),
filter_tool->operation,
pika_tool_get_icon_name (tool));
pika_filter_tool_update_filter (filter_tool);
g_signal_connect (filter_tool->filter, "flush",
G_CALLBACK (pika_filter_tool_flush),
filter_tool);
pika_gegl_progress_connect (filter_tool->operation,
PIKA_PROGRESS (filter_tool),
pika_tool_get_undo_desc (tool));
if (options->preview)
pika_drawable_filter_apply (filter_tool->filter, NULL);
}
static void
pika_filter_tool_update_dialog (PikaFilterTool *filter_tool)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
if (filter_tool->gui)
{
PikaImage *image = pika_display_get_image (tool->display);
PikaChannel *mask = pika_image_get_mask (image);
const Babl *format;
g_return_if_fail (g_list_length (tool->drawables) == 1);
if (filter_tool->filter)
format = pika_drawable_filter_get_format (filter_tool->filter);
else
format = pika_drawable_get_format (tool->drawables->data);
if (pika_channel_is_empty (mask))
{
gtk_widget_set_visible (
filter_tool->clip_combo,
pika_item_get_clip (PIKA_ITEM (tool->drawables->data), FALSE) == FALSE &&
! pika_gegl_node_is_point_operation (filter_tool->operation) &&
babl_format_has_alpha (format));
gtk_widget_hide (filter_tool->region_combo);
}
else
{
gtk_widget_hide (filter_tool->clip_combo);
gtk_widget_set_visible (
filter_tool->region_combo,
! pika_gegl_node_is_point_operation (filter_tool->operation) ||
pika_gegl_node_has_key (filter_tool->operation,
"position-dependent"));
}
}
}
static void
pika_filter_tool_region_changed (PikaFilterTool *filter_tool)
{
if (filter_tool->filter &&
PIKA_FILTER_TOOL_GET_CLASS (filter_tool)->region_changed)
{
PIKA_FILTER_TOOL_GET_CLASS (filter_tool)->region_changed (filter_tool);
}
}
static void
pika_filter_tool_flush (PikaDrawableFilter *filter,
PikaFilterTool *filter_tool)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
PikaImage *image = pika_display_get_image (tool->display);
pika_projection_flush (pika_image_get_projection (image));
}
static void
pika_filter_tool_config_notify (GObject *object,
const GParamSpec *pspec,
PikaFilterTool *filter_tool)
{
PIKA_FILTER_TOOL_GET_CLASS (filter_tool)->config_notify (filter_tool,
PIKA_CONFIG (object),
pspec);
}
static void
pika_filter_tool_unset_setting (GObject *object,
const GParamSpec *pspec,
PikaFilterTool *filter_tool)
{
g_signal_handlers_disconnect_by_func (filter_tool->config,
pika_filter_tool_unset_setting,
filter_tool);
pika_settings_box_unset (PIKA_SETTINGS_BOX (filter_tool->settings_box));
}
static void
pika_filter_tool_lock_position_changed (PikaDrawable *drawable,
PikaFilterTool *filter_tool)
{
pika_filter_tool_update_dialog (filter_tool);
}
static void
pika_filter_tool_mask_changed (PikaImage *image,
PikaFilterTool *filter_tool)
{
PikaOperationSettings *settings;
settings = PIKA_OPERATION_SETTINGS (filter_tool->config);
pika_filter_tool_update_dialog (filter_tool);
if (settings && settings->region == PIKA_FILTER_REGION_SELECTION)
pika_filter_tool_region_changed (filter_tool);
}
static void
pika_filter_tool_add_guide (PikaFilterTool *filter_tool)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
PikaFilterOptions *options = PIKA_FILTER_TOOL_GET_OPTIONS (filter_tool);
PikaItem *item;
PikaImage *image;
PikaOrientationType orientation;
gint position;
g_return_if_fail (g_list_length (tool->drawables) == 1);
if (filter_tool->preview_guide)
return;
item = PIKA_ITEM (tool->drawables->data);
image = pika_item_get_image (item);
if (options->preview_split_alignment == PIKA_ALIGN_LEFT ||
options->preview_split_alignment == PIKA_ALIGN_RIGHT)
{
orientation = PIKA_ORIENTATION_VERTICAL;
position = pika_item_get_offset_x (item) +
options->preview_split_position;
}
else
{
orientation = PIKA_ORIENTATION_HORIZONTAL;
position = pika_item_get_offset_y (item) +
options->preview_split_position;
}
filter_tool->preview_guide =
pika_guide_custom_new (orientation,
image->pika->next_guide_id++,
PIKA_GUIDE_STYLE_SPLIT_VIEW);
pika_image_add_guide (image, filter_tool->preview_guide, position);
g_signal_connect (filter_tool->preview_guide, "removed",
G_CALLBACK (pika_filter_tool_guide_removed),
filter_tool);
g_signal_connect (filter_tool->preview_guide, "notify::position",
G_CALLBACK (pika_filter_tool_guide_moved),
filter_tool);
}
static void
pika_filter_tool_remove_guide (PikaFilterTool *filter_tool)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
PikaImage *image;
if (! filter_tool->preview_guide)
return;
image = pika_item_get_image (PIKA_ITEM (tool->drawables->data));
pika_image_remove_guide (image, filter_tool->preview_guide, FALSE);
}
static void
pika_filter_tool_move_guide (PikaFilterTool *filter_tool)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
PikaFilterOptions *options = PIKA_FILTER_TOOL_GET_OPTIONS (filter_tool);
PikaItem *item;
PikaOrientationType orientation;
gint position;
g_return_if_fail (g_list_length (tool->drawables) == 1);
if (! filter_tool->preview_guide)
return;
item = PIKA_ITEM (tool->drawables->data);
if (options->preview_split_alignment == PIKA_ALIGN_LEFT ||
options->preview_split_alignment == PIKA_ALIGN_RIGHT)
{
orientation = PIKA_ORIENTATION_VERTICAL;
position = pika_item_get_offset_x (item) +
options->preview_split_position;
}
else
{
orientation = PIKA_ORIENTATION_HORIZONTAL;
position = pika_item_get_offset_x (item) +
options->preview_split_position;
}
if (orientation != pika_guide_get_orientation (filter_tool->preview_guide) ||
position != pika_guide_get_position (filter_tool->preview_guide))
{
pika_guide_set_orientation (filter_tool->preview_guide, orientation);
pika_image_move_guide (pika_item_get_image (item),
filter_tool->preview_guide, position, FALSE);
}
}
static void
pika_filter_tool_guide_removed (PikaGuide *guide,
PikaFilterTool *filter_tool)
{
PikaFilterOptions *options = PIKA_FILTER_TOOL_GET_OPTIONS (filter_tool);
g_signal_handlers_disconnect_by_func (G_OBJECT (filter_tool->preview_guide),
pika_filter_tool_guide_removed,
filter_tool);
g_signal_handlers_disconnect_by_func (G_OBJECT (filter_tool->preview_guide),
pika_filter_tool_guide_moved,
filter_tool);
g_clear_object (&filter_tool->preview_guide);
g_object_set (options,
"preview-split", FALSE,
NULL);
}
static void
pika_filter_tool_guide_moved (PikaGuide *guide,
const GParamSpec *pspec,
PikaFilterTool *filter_tool)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
PikaFilterOptions *options = PIKA_FILTER_TOOL_GET_OPTIONS (filter_tool);
PikaItem *item;
gint position;
g_return_if_fail (g_list_length (tool->drawables) == 1);
item = PIKA_ITEM (tool->drawables->data);
if (options->preview_split_alignment == PIKA_ALIGN_LEFT ||
options->preview_split_alignment == PIKA_ALIGN_RIGHT)
{
position = CLAMP (pika_guide_get_position (guide) -
pika_item_get_offset_x (item),
0, pika_item_get_width (item));
}
else
{
position = CLAMP (pika_guide_get_position (guide) -
pika_item_get_offset_y (item),
0, pika_item_get_height (item));
}
g_object_set (options,
"preview-split-position", position,
NULL);
}
static void
pika_filter_tool_response (PikaToolGui *gui,
gint response_id,
PikaFilterTool *filter_tool)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
switch (response_id)
{
case RESPONSE_RESET:
pika_filter_tool_reset (filter_tool);
break;
case GTK_RESPONSE_OK:
pika_tool_control (tool, PIKA_TOOL_ACTION_COMMIT, tool->display);
break;
default:
pika_tool_control (tool, PIKA_TOOL_ACTION_HALT, tool->display);
break;
}
}
static void
pika_filter_tool_update_filter (PikaFilterTool *filter_tool)
{
PikaFilterOptions *options = PIKA_FILTER_TOOL_GET_OPTIONS (filter_tool);
PikaOperationSettings *settings;
if (! filter_tool->filter)
return;
settings = PIKA_OPERATION_SETTINGS (filter_tool->config);
pika_drawable_filter_set_preview (filter_tool->filter,
options->preview);
pika_drawable_filter_set_preview_split (filter_tool->filter,
options->preview_split,
options->preview_split_alignment,
options->preview_split_position);
pika_drawable_filter_set_add_alpha (filter_tool->filter,
pika_gegl_node_has_key (
filter_tool->operation,
"needs-alpha"));
pika_operation_settings_sync_drawable_filter (settings, filter_tool->filter);
}
static void
pika_filter_tool_set_has_settings (PikaFilterTool *filter_tool,
gboolean has_settings)
{
g_return_if_fail (PIKA_IS_FILTER_TOOL (filter_tool));
filter_tool->has_settings = has_settings;
if (! filter_tool->settings_box)
return;
if (filter_tool->has_settings)
{
PikaTool *tool = PIKA_TOOL (filter_tool);
GQuark quark = g_quark_from_static_string ("settings-folder");
GType type = G_TYPE_FROM_INSTANCE (filter_tool->config);
GFile *settings_folder;
gchar *import_title;
gchar *export_title;
settings_folder = g_type_get_qdata (type, quark);
import_title = g_strdup_printf (_("Import '%s' Settings"),
pika_tool_get_label (tool));
export_title = g_strdup_printf (_("Export '%s' Settings"),
pika_tool_get_label (tool));
g_object_set (filter_tool->settings_box,
"visible", TRUE,
"config", filter_tool->config,
"container", filter_tool->settings,
"help-id", pika_tool_get_help_id (tool),
"import-title", import_title,
"export-title", export_title,
"default-folder", settings_folder,
"last-file", NULL,
NULL);
g_free (import_title);
g_free (export_title);
}
else
{
g_object_set (filter_tool->settings_box,
"visible", FALSE,
"config", NULL,
"container", NULL,
"help-id", NULL,
"import-title", NULL,
"export-title", NULL,
"default-folder", NULL,
"last-file", NULL,
NULL);
}
}
/* public functions */
void
pika_filter_tool_get_operation (PikaFilterTool *filter_tool)
{
PikaTool *tool;
PikaFilterToolClass *klass;
gchar *operation_name;
GParamSpec **pspecs;
g_return_if_fail (PIKA_IS_FILTER_TOOL (filter_tool));
tool = PIKA_TOOL (filter_tool);
klass = PIKA_FILTER_TOOL_GET_CLASS (filter_tool);
if (filter_tool->filter)
{
pika_drawable_filter_abort (filter_tool->filter);
g_clear_object (&filter_tool->filter);
pika_filter_tool_remove_guide (filter_tool);
}
g_clear_object (&filter_tool->operation);
if (filter_tool->config)
{
g_signal_handlers_disconnect_by_func (filter_tool->config,
pika_filter_tool_config_notify,
filter_tool);
g_signal_handlers_disconnect_by_func (filter_tool->config,
pika_filter_tool_unset_setting,
filter_tool);
g_clear_object (&filter_tool->config);
}
g_clear_object (&filter_tool->default_config);
g_clear_object (&filter_tool->settings);
g_clear_pointer (&filter_tool->description, g_free);
operation_name = klass->get_operation (filter_tool,
&filter_tool->description);
if (! operation_name)
operation_name = g_strdup ("gegl:nop");
if (! filter_tool->description)
filter_tool->description = g_strdup (pika_tool_get_label (tool));
filter_tool->operation = gegl_node_new_child (NULL,
"operation", operation_name,
NULL);
filter_tool->config =
g_object_new (pika_operation_config_get_type (tool->tool_info->pika,
operation_name,
pika_tool_get_icon_name (tool),
PIKA_TYPE_OPERATION_SETTINGS),
NULL);
pika_operation_config_sync_node (filter_tool->config,
filter_tool->operation);
pika_operation_config_connect_node (filter_tool->config,
filter_tool->operation);
filter_tool->settings =
pika_operation_config_get_container (tool->tool_info->pika,
G_TYPE_FROM_INSTANCE (filter_tool->config),
(GCompareFunc) pika_settings_compare);
g_object_ref (filter_tool->settings);
pspecs =
pika_operation_config_list_properties (filter_tool->config,
G_TYPE_FROM_INSTANCE (filter_tool->config),
0, NULL);
pika_filter_tool_set_has_settings (filter_tool, (pspecs != NULL));
g_free (pspecs);
if (filter_tool->gui)
{
pika_tool_gui_set_title (filter_tool->gui,
pika_tool_get_label (tool));
pika_tool_gui_set_description (filter_tool->gui, filter_tool->description);
pika_tool_gui_set_icon_name (filter_tool->gui,
pika_tool_get_icon_name (tool));
pika_tool_gui_set_help_id (filter_tool->gui,
pika_tool_get_help_id (tool));
pika_filter_tool_update_dialog_operation_settings (filter_tool);
}
pika_filter_tool_update_dialog (filter_tool);
g_free (operation_name);
g_object_set (PIKA_FILTER_TOOL_GET_OPTIONS (filter_tool),
"preview-split", FALSE,
NULL);
g_signal_connect_object (filter_tool->config, "notify",
G_CALLBACK (pika_filter_tool_config_notify),
G_OBJECT (filter_tool), 0);
if (tool->drawables)
pika_filter_tool_create_filter (filter_tool);
}
void
pika_filter_tool_set_config (PikaFilterTool *filter_tool,
PikaConfig *config)
{
g_return_if_fail (PIKA_IS_FILTER_TOOL (filter_tool));
g_return_if_fail (PIKA_IS_OPERATION_SETTINGS (config));
/* if the user didn't change a setting since the last set_config(),
* this handler is still connected
*/
g_signal_handlers_disconnect_by_func (filter_tool->config,
pika_filter_tool_unset_setting,
filter_tool);
PIKA_FILTER_TOOL_GET_CLASS (filter_tool)->set_config (filter_tool, config);
if (filter_tool->widget)
pika_filter_tool_reset_widget (filter_tool, filter_tool->widget);
if (filter_tool->settings_box)
g_signal_connect_object (filter_tool->config, "notify",
G_CALLBACK (pika_filter_tool_unset_setting),
G_OBJECT (filter_tool), 0);
}
void
pika_filter_tool_edit_as (PikaFilterTool *filter_tool,
const gchar *new_tool_id,
PikaConfig *config)
{
PikaDisplay *display;
PikaContext *user_context;
PikaToolInfo *tool_info;
PikaTool *new_tool;
g_return_if_fail (PIKA_IS_FILTER_TOOL (filter_tool));
g_return_if_fail (new_tool_id != NULL);
g_return_if_fail (PIKA_IS_CONFIG (config));
display = PIKA_TOOL (filter_tool)->display;
user_context = pika_get_user_context (display->pika);
tool_info = (PikaToolInfo *)
pika_container_get_child_by_name (display->pika->tool_info_list,
new_tool_id);
pika_tool_control (PIKA_TOOL (filter_tool), PIKA_TOOL_ACTION_HALT, display);
pika_context_set_tool (user_context, tool_info);
tool_manager_initialize_active (display->pika, display);
new_tool = tool_manager_get_active (display->pika);
PIKA_FILTER_TOOL (new_tool)->default_config = g_object_ref (G_OBJECT (config));
pika_filter_tool_reset (PIKA_FILTER_TOOL (new_tool));
}
gboolean
pika_filter_tool_on_guide (PikaFilterTool *filter_tool,
const PikaCoords *coords,
PikaDisplay *display)
{
PikaDisplayShell *shell;
g_return_val_if_fail (PIKA_IS_FILTER_TOOL (filter_tool), FALSE);
g_return_val_if_fail (coords != NULL, FALSE);
g_return_val_if_fail (PIKA_IS_DISPLAY (display), FALSE);
shell = pika_display_get_shell (display);
if (filter_tool->filter &&
filter_tool->preview_guide &&
pika_display_shell_get_show_guides (shell))
{
const gint snap_distance = display->config->snap_distance;
PikaOrientationType orientation;
gint position;
orientation = pika_guide_get_orientation (filter_tool->preview_guide);
position = pika_guide_get_position (filter_tool->preview_guide);
if (orientation == PIKA_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 *
pika_filter_tool_dialog_get_vbox (PikaFilterTool *filter_tool)
{
g_return_val_if_fail (PIKA_IS_FILTER_TOOL (filter_tool), NULL);
return pika_tool_gui_get_vbox (filter_tool->gui);
}
void
pika_filter_tool_enable_color_picking (PikaFilterTool *filter_tool,
gpointer identifier,
gboolean pick_abyss)
{
g_return_if_fail (PIKA_IS_FILTER_TOOL (filter_tool));
pika_filter_tool_disable_color_picking (filter_tool);
/* note that ownership over 'identifier' is not transferred, and its
* lifetime should be managed by the caller.
*/
filter_tool->pick_identifier = identifier;
filter_tool->pick_abyss = pick_abyss;
pika_color_tool_enable (PIKA_COLOR_TOOL (filter_tool),
PIKA_COLOR_TOOL_GET_OPTIONS (filter_tool));
}
void
pika_filter_tool_disable_color_picking (PikaFilterTool *filter_tool)
{
g_return_if_fail (PIKA_IS_FILTER_TOOL (filter_tool));
if (filter_tool->active_picker)
{
GtkToggleButton *toggle = GTK_TOGGLE_BUTTON (filter_tool->active_picker);
filter_tool->active_picker = NULL;
gtk_toggle_button_set_active (toggle, FALSE);
}
if (pika_color_tool_is_enabled (PIKA_COLOR_TOOL (filter_tool)))
pika_color_tool_disable (PIKA_COLOR_TOOL (filter_tool));
}
static void
pika_filter_tool_color_picker_toggled (GtkWidget *widget,
PikaFilterTool *filter_tool)
{
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
{
gpointer identifier;
gboolean pick_abyss;
if (filter_tool->active_picker == widget)
return;
identifier = g_object_get_data (G_OBJECT (widget),
"picker-identifier");
pick_abyss = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"picker-pick-abyss"));
pika_filter_tool_enable_color_picking (filter_tool,
identifier, pick_abyss);
filter_tool->active_picker = widget;
}
else if (filter_tool->active_picker == widget)
{
pika_filter_tool_disable_color_picking (filter_tool);
}
}
GtkWidget *
pika_filter_tool_add_color_picker (PikaFilterTool *filter_tool,
gpointer identifier,
const gchar *icon_name,
const gchar *tooltip,
gboolean pick_abyss,
PikaPickerCallback callback,
gpointer callback_data)
{
GtkWidget *button;
GtkWidget *image;
g_return_val_if_fail (PIKA_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);
g_object_set (image,
"margin-start", 2,
"margin-end", 2,
"margin-top", 2,
"margin-bottom", 2,
NULL);
gtk_container_add (GTK_CONTAINER (button), image);
gtk_widget_show (image);
if (tooltip)
pika_help_set_help_data (button, tooltip, NULL);
g_object_set_data (G_OBJECT (button),
"picker-identifier", identifier);
g_object_set_data (G_OBJECT (button),
"picker-pick-abyss", GINT_TO_POINTER (pick_abyss));
g_object_set_data (G_OBJECT (button),
"picker-callback", callback);
g_object_set_data (G_OBJECT (button),
"picker-callback-data", callback_data);
g_signal_connect (button, "toggled",
G_CALLBACK (pika_filter_tool_color_picker_toggled),
filter_tool);
return button;
}
GCallback
pika_filter_tool_add_controller (PikaFilterTool *filter_tool,
PikaControllerType controller_type,
const gchar *status_title,
GCallback callback,
gpointer callback_data,
gpointer *set_func_data)
{
PikaToolWidget *widget;
GCallback set_func;
g_return_val_if_fail (PIKA_IS_FILTER_TOOL (filter_tool), NULL);
g_return_val_if_fail (callback != NULL, NULL);
g_return_val_if_fail (callback_data != NULL, NULL);
g_return_val_if_fail (set_func_data != NULL, NULL);
widget = pika_filter_tool_create_widget (filter_tool,
controller_type,
status_title,
callback,
callback_data,
&set_func,
set_func_data);
pika_filter_tool_set_widget (filter_tool, widget);
g_object_unref (widget);
return set_func;
}
void
pika_filter_tool_set_widget (PikaFilterTool *filter_tool,
PikaToolWidget *widget)
{
g_return_if_fail (PIKA_IS_FILTER_TOOL (filter_tool));
g_return_if_fail (widget == NULL || PIKA_IS_TOOL_WIDGET (widget));
if (widget == filter_tool->widget)
return;
if (filter_tool->widget)
{
if (pika_draw_tool_is_active (PIKA_DRAW_TOOL (filter_tool)))
pika_draw_tool_stop (PIKA_DRAW_TOOL (filter_tool));
g_object_unref (filter_tool->widget);
}
filter_tool->widget = widget;
pika_draw_tool_set_widget (PIKA_DRAW_TOOL (filter_tool), widget);
if (filter_tool->widget)
{
PikaFilterOptions *options = PIKA_FILTER_TOOL_GET_OPTIONS (filter_tool);
g_object_ref (filter_tool->widget);
pika_tool_widget_set_visible (filter_tool->widget,
options->controller);
if (PIKA_TOOL (filter_tool)->display)
pika_draw_tool_start (PIKA_DRAW_TOOL (filter_tool),
PIKA_TOOL (filter_tool)->display);
}
if (filter_tool->controller_toggle)
{
gtk_widget_set_visible (filter_tool->controller_toggle,
filter_tool->widget != NULL);
}
}
gboolean
pika_filter_tool_get_drawable_area (PikaFilterTool *filter_tool,
gint *drawable_offset_x,
gint *drawable_offset_y,
GeglRectangle *drawable_area)
{
PikaTool *tool;
PikaOperationSettings *settings;
PikaDrawable *drawable;
g_return_val_if_fail (PIKA_IS_FILTER_TOOL (filter_tool), FALSE);
g_return_val_if_fail (drawable_offset_x != NULL, FALSE);
g_return_val_if_fail (drawable_offset_y != NULL, FALSE);
g_return_val_if_fail (drawable_area != NULL, FALSE);
tool = PIKA_TOOL (filter_tool);
settings = PIKA_OPERATION_SETTINGS (filter_tool->config);
g_return_val_if_fail (g_list_length (tool->drawables) == 1, FALSE);
*drawable_offset_x = 0;
*drawable_offset_y = 0;
drawable_area->x = 0;
drawable_area->y = 0;
drawable_area->width = 1;
drawable_area->height = 1;
drawable = tool->drawables->data;
if (drawable && settings)
{
pika_item_get_offset (PIKA_ITEM (drawable),
drawable_offset_x, drawable_offset_y);
switch (settings->region)
{
case PIKA_FILTER_REGION_SELECTION:
if (! pika_item_mask_intersect (PIKA_ITEM (drawable),
&drawable_area->x,
&drawable_area->y,
&drawable_area->width,
&drawable_area->height))
{
drawable_area->x = 0;
drawable_area->y = 0;
drawable_area->width = 1;
drawable_area->height = 1;
}
break;
case PIKA_FILTER_REGION_DRAWABLE:
drawable_area->width = pika_item_get_width (PIKA_ITEM (drawable));
drawable_area->height = pika_item_get_height (PIKA_ITEM (drawable));
break;
}
return TRUE;
}
return FALSE;
}
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