Files
gimp/app/tools/gimpbrightnesscontrasttool.c
Michael Natterer b23f231a1a Bug 792470 - Some filters e.g. "Levels" are not added to "Repeat last" history
The four remaining "classic" color tools (Brightness-Contrast, Curves,
Levels and Threshold) are in fact just special UIs for otherwise
completely normal filter ops.

Add normal filter actions for them and invoke them like all
other filters, which makes them show up in the filter history
automatically.

The only small hack needed is to special case them in
gimp_gegl_procedure_execute_async() so the right tools are created
instead of the default GimpOperationTool. Also, blacklist the
automatically generated tools actions from action search and the
shortcut editor.
2018-01-14 15:42:29 +01:00

315 lines
12 KiB
C

/* 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/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpconfig/gimpconfig.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "operations/gimpbrightnesscontrastconfig.h"
#include "core/gimpdrawable.h"
#include "core/gimperror.h"
#include "core/gimpimage.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimppropwidgets.h"
#include "widgets/gimpspinscale.h"
#include "widgets/gimpwidgets-constructors.h"
#include "display/gimpdisplay.h"
#include "gimpbrightnesscontrasttool.h"
#include "gimpfilteroptions.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
#define SLIDER_WIDTH 200
static gboolean gimp_brightness_contrast_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error);
static void gimp_brightness_contrast_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonPressType press_type,
GimpDisplay *display);
static void gimp_brightness_contrast_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display);
static void gimp_brightness_contrast_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display);
static gchar *
gimp_brightness_contrast_tool_get_operation (GimpFilterTool *filter_tool,
gchar **description);
static void gimp_brightness_contrast_tool_dialog (GimpFilterTool *filter_tool);
static void brightness_contrast_to_levels_callback (GtkWidget *widget,
GimpFilterTool *filter_tool);
G_DEFINE_TYPE (GimpBrightnessContrastTool, gimp_brightness_contrast_tool,
GIMP_TYPE_FILTER_TOOL)
#define parent_class gimp_brightness_contrast_tool_parent_class
void
gimp_brightness_contrast_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_BRIGHTNESS_CONTRAST_TOOL,
GIMP_TYPE_FILTER_OPTIONS, NULL,
0,
"gimp-brightness-contrast-tool",
_("Brightness-Contrast"),
_("Adjust brightness and contrast"),
N_("B_rightness-Contrast..."), NULL,
NULL, GIMP_HELP_TOOL_BRIGHTNESS_CONTRAST,
GIMP_ICON_TOOL_BRIGHTNESS_CONTRAST,
data);
}
static void
gimp_brightness_contrast_tool_class_init (GimpBrightnessContrastToolClass *klass)
{
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpFilterToolClass *filter_tool_class = GIMP_FILTER_TOOL_CLASS (klass);
tool_class->initialize = gimp_brightness_contrast_tool_initialize;
tool_class->button_press = gimp_brightness_contrast_tool_button_press;
tool_class->button_release = gimp_brightness_contrast_tool_button_release;
tool_class->motion = gimp_brightness_contrast_tool_motion;
filter_tool_class->get_operation = gimp_brightness_contrast_tool_get_operation;
filter_tool_class->dialog = gimp_brightness_contrast_tool_dialog;
}
static void
gimp_brightness_contrast_tool_init (GimpBrightnessContrastTool *bc_tool)
{
}
static gboolean
gimp_brightness_contrast_tool_initialize (GimpTool *tool,
GimpDisplay *display,
GError **error)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (tool);
GimpImage *image = gimp_display_get_image (display);
GimpDrawable *drawable = gimp_image_get_active_drawable (image);
if (! GIMP_TOOL_CLASS (parent_class)->initialize (tool, display, error))
{
return FALSE;
}
if (gimp_drawable_get_component_type (drawable) == GIMP_COMPONENT_TYPE_U8)
{
gimp_prop_widget_set_factor (bc_tool->brightness_scale,
127.0, 1.0, 8.0, 0);
gimp_prop_widget_set_factor (bc_tool->contrast_scale,
127.0, 1.0, 8.0, 0);
}
else
{
gimp_prop_widget_set_factor (bc_tool->brightness_scale,
0.5, 0.01, 0.1, 3);
gimp_prop_widget_set_factor (bc_tool->contrast_scale,
0.5, 0.01, 0.1, 3);
}
return TRUE;
}
static gchar *
gimp_brightness_contrast_tool_get_operation (GimpFilterTool *filter_tool,
gchar **description)
{
*description = g_strdup (_("Adjust Brightness and Contrast"));
return g_strdup ("gimp:brightness-contrast");
}
static void
gimp_brightness_contrast_tool_button_press (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonPressType press_type,
GimpDisplay *display)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (tool);
bc_tool->dragging = ! gimp_filter_tool_on_guide (GIMP_FILTER_TOOL (tool),
coords, display);
if (! bc_tool->dragging)
{
GIMP_TOOL_CLASS (parent_class)->button_press (tool, coords, time, state,
press_type, display);
}
else
{
gdouble brightness;
gdouble contrast;
g_object_get (GIMP_FILTER_TOOL (tool)->config,
"brightness", &brightness,
"contrast", &contrast,
NULL);
bc_tool->x = coords->x - contrast * 127.0;
bc_tool->y = coords->y + brightness * 127.0;
bc_tool->dx = contrast * 127.0;
bc_tool->dy = - brightness * 127.0;
tool->display = display;
gimp_tool_control_activate (tool->control);
}
}
static void
gimp_brightness_contrast_tool_button_release (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpButtonReleaseType release_type,
GimpDisplay *display)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (tool);
if (! bc_tool->dragging)
{
GIMP_TOOL_CLASS (parent_class)->button_release (tool, coords, time, state,
release_type, display);
}
else
{
gimp_tool_control_halt (tool->control);
bc_tool->dragging = FALSE;
if (bc_tool->dx == 0 && bc_tool->dy == 0)
return;
if (release_type == GIMP_BUTTON_RELEASE_CANCEL)
gimp_config_reset (GIMP_CONFIG (GIMP_FILTER_TOOL (tool)->config));
}
}
static void
gimp_brightness_contrast_tool_motion (GimpTool *tool,
const GimpCoords *coords,
guint32 time,
GdkModifierType state,
GimpDisplay *display)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (tool);
if (! bc_tool->dragging)
{
GIMP_TOOL_CLASS (parent_class)->motion (tool, coords, time, state,
display);
}
else
{
bc_tool->dx = (coords->x - bc_tool->x);
bc_tool->dy = - (coords->y - bc_tool->y);
g_object_set (GIMP_FILTER_TOOL (tool)->config,
"brightness", CLAMP (bc_tool->dy, -127.0, 127.0) / 127.0,
"contrast", CLAMP (bc_tool->dx, -127.0, 127.0) / 127.0,
NULL);
}
}
/********************************/
/* Brightness Contrast dialog */
/********************************/
static void
gimp_brightness_contrast_tool_dialog (GimpFilterTool *filter_tool)
{
GimpBrightnessContrastTool *bc_tool = GIMP_BRIGHTNESS_CONTRAST_TOOL (filter_tool);
GtkWidget *main_vbox;
GtkWidget *scale;
GtkWidget *button;
main_vbox = gimp_filter_tool_dialog_get_vbox (filter_tool);
/* Create the brightness scale widget */
scale = gimp_prop_spin_scale_new (filter_tool->config, "brightness",
_("_Brightness"), 0.01, 0.1, 3);
gtk_box_pack_start (GTK_BOX (main_vbox), scale, FALSE, FALSE, 0);
gtk_widget_show (scale);
bc_tool->brightness_scale = scale;
/* Create the contrast scale widget */
scale = gimp_prop_spin_scale_new (filter_tool->config, "contrast",
_("_Contrast"), 0.01, 0.1, 3);
gtk_box_pack_start (GTK_BOX (main_vbox), scale, FALSE, FALSE, 0);
gtk_widget_show (scale);
bc_tool->contrast_scale = scale;
button = gimp_icon_button_new (GIMP_ICON_TOOL_LEVELS,
_("Edit these Settings as Levels"));
gtk_box_pack_start (GTK_BOX (main_vbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (brightness_contrast_to_levels_callback),
filter_tool);
}
static void
brightness_contrast_to_levels_callback (GtkWidget *widget,
GimpFilterTool *filter_tool)
{
GimpLevelsConfig *levels;
levels = gimp_brightness_contrast_config_to_levels_config (GIMP_BRIGHTNESS_CONTRAST_CONFIG (filter_tool->config));
gimp_filter_tool_edit_as (filter_tool,
"gimp-levels-tool",
GIMP_CONFIG (levels));
g_object_unref (levels);
}