PIKApp/app/tools/pikaconvolvetool.c

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2023-09-26 00:35:21 +02:00
/* 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/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libpikawidgets/pikawidgets.h"
#include "tools-types.h"
#include "paint/pikaconvolveoptions.h"
#include "widgets/pikahelp-ids.h"
#include "widgets/pikapropwidgets.h"
#include "widgets/pikawidgets-utils.h"
#include "pikaconvolvetool.h"
#include "pikapaintoptions-gui.h"
#include "pikatoolcontrol.h"
#include "pika-intl.h"
static void pika_convolve_tool_modifier_key (PikaTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
PikaDisplay *display);
static void pika_convolve_tool_cursor_update (PikaTool *tool,
const PikaCoords *coords,
GdkModifierType state,
PikaDisplay *display);
static void pika_convolve_tool_oper_update (PikaTool *tool,
const PikaCoords *coords,
GdkModifierType state,
gboolean proximity,
PikaDisplay *display);
static void pika_convolve_tool_status_update (PikaTool *tool,
PikaConvolveType type);
static GtkWidget * pika_convolve_options_gui (PikaToolOptions *options);
G_DEFINE_TYPE (PikaConvolveTool, pika_convolve_tool, PIKA_TYPE_BRUSH_TOOL)
#define parent_class pika_convolve_tool_parent_class
void
pika_convolve_tool_register (PikaToolRegisterCallback callback,
gpointer data)
{
(* callback) (PIKA_TYPE_CONVOLVE_TOOL,
PIKA_TYPE_CONVOLVE_OPTIONS,
pika_convolve_options_gui,
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PIKA_PAINT_OPTIONS_CONTEXT_MASK |
PIKA_CONTEXT_PROP_MASK_PATTERN |
PIKA_CONTEXT_PROP_MASK_EXPAND,
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"pika-convolve-tool",
_("Blur / Sharpen"),
_("Blur / Sharpen Tool: Selective blurring or unblurring using a brush"),
N_("Bl_ur / Sharpen"), "<shift>U",
NULL, PIKA_HELP_TOOL_CONVOLVE,
PIKA_ICON_TOOL_BLUR,
data);
}
static void
pika_convolve_tool_class_init (PikaConvolveToolClass *klass)
{
PikaToolClass *tool_class = PIKA_TOOL_CLASS (klass);
tool_class->modifier_key = pika_convolve_tool_modifier_key;
tool_class->cursor_update = pika_convolve_tool_cursor_update;
tool_class->oper_update = pika_convolve_tool_oper_update;
}
static void
pika_convolve_tool_init (PikaConvolveTool *convolve)
{
PikaTool *tool = PIKA_TOOL (convolve);
pika_tool_control_set_tool_cursor (tool->control,
PIKA_TOOL_CURSOR_BLUR);
pika_tool_control_set_toggle_cursor_modifier (tool->control,
PIKA_CURSOR_MODIFIER_MINUS);
pika_convolve_tool_status_update (tool, PIKA_CONVOLVE_BLUR);
}
static void
pika_convolve_tool_modifier_key (PikaTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
PikaDisplay *display)
{
PikaConvolveTool *convolve = PIKA_CONVOLVE_TOOL (tool);
PikaConvolveOptions *options = PIKA_CONVOLVE_TOOL_GET_OPTIONS (tool);
GdkModifierType line_mask = PIKA_PAINT_TOOL_LINE_MASK;
GdkModifierType toggle_mask = pika_get_toggle_behavior_mask ();
if (((key == toggle_mask) &&
! (state & line_mask) && /* leave stuff untouched in line draw mode */
press != convolve->toggled)
||
(key == line_mask && /* toggle back after keypresses CTRL(hold)-> */
! press && /* SHIFT(hold)->CTRL(release)->SHIFT(release) */
convolve->toggled &&
! (state & toggle_mask)))
{
convolve->toggled = press;
switch (options->type)
{
case PIKA_CONVOLVE_BLUR:
g_object_set (options, "type", PIKA_CONVOLVE_SHARPEN, NULL);
break;
case PIKA_CONVOLVE_SHARPEN:
g_object_set (options, "type", PIKA_CONVOLVE_BLUR, NULL);
break;
}
}
}
static void
pika_convolve_tool_cursor_update (PikaTool *tool,
const PikaCoords *coords,
GdkModifierType state,
PikaDisplay *display)
{
PikaConvolveOptions *options = PIKA_CONVOLVE_TOOL_GET_OPTIONS (tool);
pika_tool_control_set_toggled (tool->control,
options->type == PIKA_CONVOLVE_SHARPEN);
PIKA_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
}
static void
pika_convolve_tool_oper_update (PikaTool *tool,
const PikaCoords *coords,
GdkModifierType state,
gboolean proximity,
PikaDisplay *display)
{
PikaConvolveOptions *options = PIKA_CONVOLVE_TOOL_GET_OPTIONS (tool);
pika_convolve_tool_status_update (tool, options->type);
PIKA_TOOL_CLASS (parent_class)->oper_update (tool, coords, state, proximity,
display);
}
static void
pika_convolve_tool_status_update (PikaTool *tool,
PikaConvolveType type)
{
PikaPaintTool *paint_tool = PIKA_PAINT_TOOL (tool);
switch (type)
{
case PIKA_CONVOLVE_BLUR:
paint_tool->status = _("Click to blur");
paint_tool->status_line = _("Click to blur the line");
paint_tool->status_ctrl = _("%s to sharpen");
break;
case PIKA_CONVOLVE_SHARPEN:
paint_tool->status = _("Click to sharpen");
paint_tool->status_line = _("Click to sharpen the line");
paint_tool->status_ctrl = _("%s to blur");
break;
default:
break;
}
}
/* tool options stuff */
static GtkWidget *
pika_convolve_options_gui (PikaToolOptions *tool_options)
{
GObject *config = G_OBJECT (tool_options);
GtkWidget *vbox = pika_paint_options_gui (tool_options);
GtkWidget *frame;
GtkWidget *scale;
gchar *str;
GdkModifierType toggle_mask;
toggle_mask = pika_get_toggle_behavior_mask ();
/* the type radio box */
str = g_strdup_printf (_("Convolve Type (%s)"),
pika_get_mod_string (toggle_mask));
frame = pika_prop_enum_radio_frame_new (config, "type",
str, 0, 0);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
g_free (str);
/* the rate scale */
scale = pika_prop_spin_scale_new (config, "rate",
1.0, 10.0, 1);
gtk_box_pack_start (GTK_BOX (vbox), scale, FALSE, FALSE, 0);
return vbox;
}