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gimp/app/tools/gimpcolorpickertool.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995-2001 Spencer Kimball, Peter Mattis, and others
*
* 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 <gegl.h>
#include <gtk/gtk.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimpdrawable.h"
#include "widgets/gimpcolorframe.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpwidgets-utils.h"
#include "display/gimpdisplay.h"
#include "display/gimptooldialog.h"
#include "gimpcolorpickeroptions.h"
#include "gimpcolorpickertool.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_color_picker_tool_constructed (GObject *object);
static void gimp_color_picker_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display);
static void gimp_color_picker_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display);
static void gimp_color_picker_tool_oper_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display);
static void gimp_color_picker_tool_picked (GimpColorTool *color_tool,
GimpColorPickState pick_state,
const Babl *sample_format,
const GimpRGB *color,
gint color_index);
static void gimp_color_picker_tool_info_create (GimpColorPickerTool *picker_tool);
static void gimp_color_picker_tool_info_response (GtkWidget *widget,
gint response_id,
GimpColorPickerTool *picker_tool);
static void gimp_color_picker_tool_info_update (GimpColorPickerTool *picker_tool,
const Babl *sample_format,
const GimpRGB *color,
gint color_index);
G_DEFINE_TYPE (GimpColorPickerTool, gimp_color_picker_tool,
GIMP_TYPE_COLOR_TOOL)
#define parent_class gimp_color_picker_tool_parent_class
void
gimp_color_picker_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_COLOR_PICKER_TOOL,
GIMP_TYPE_COLOR_PICKER_OPTIONS,
gimp_color_picker_options_gui,
GIMP_CONTEXT_FOREGROUND_MASK | GIMP_CONTEXT_BACKGROUND_MASK,
"gimp-color-picker-tool",
_("Color Picker"),
_("Color Picker Tool: Set colors from image pixels"),
N_("C_olor Picker"), "O",
NULL, GIMP_HELP_TOOL_COLOR_PICKER,
GIMP_STOCK_TOOL_COLOR_PICKER,
data);
}
static void
gimp_color_picker_tool_class_init (GimpColorPickerToolClass *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_color_picker_tool_constructed;
tool_class->control = gimp_color_picker_tool_control;
tool_class->modifier_key = gimp_color_picker_tool_modifier_key;
tool_class->oper_update = gimp_color_picker_tool_oper_update;
color_tool_class->picked = gimp_color_picker_tool_picked;
}
static void
gimp_color_picker_tool_init (GimpColorPickerTool *picker_tool)
{
GimpTool *tool = GIMP_TOOL (picker_tool);
GimpColorTool *color_tool = GIMP_COLOR_TOOL (picker_tool);
gimp_tool_control_set_motion_mode (tool->control, GIMP_MOTION_MODE_COMPRESS);
color_tool->pick_mode = GIMP_COLOR_PICK_MODE_FOREGROUND;
}
static void
gimp_color_picker_tool_constructed (GObject *object)
{
GimpTool *tool = GIMP_TOOL (object);
if (G_OBJECT_CLASS (parent_class)->constructed)
G_OBJECT_CLASS (parent_class)->constructed (object);
gimp_color_tool_enable (GIMP_COLOR_TOOL (object),
GIMP_COLOR_TOOL_GET_OPTIONS (tool));
}
static void
gimp_color_picker_tool_control (GimpTool *tool,
GimpToolAction action,
GimpDisplay *display)
{
GimpColorPickerTool *picker_tool = GIMP_COLOR_PICKER_TOOL (tool);
switch (action)
{
case GIMP_TOOL_ACTION_PAUSE:
case GIMP_TOOL_ACTION_RESUME:
break;
case GIMP_TOOL_ACTION_HALT:
if (picker_tool->dialog)
{
gtk_widget_destroy (picker_tool->dialog);
picker_tool->dialog = NULL;
picker_tool->color_area = NULL;
picker_tool->color_frame1 = NULL;
picker_tool->color_frame2 = NULL;
}
break;
}
GIMP_TOOL_CLASS (parent_class)->control (tool, action, display);
}
static void
gimp_color_picker_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display)
{
GimpColorPickerOptions *options = GIMP_COLOR_PICKER_TOOL_GET_OPTIONS (tool);
if (key == GDK_SHIFT_MASK)
{
g_object_set (options, "use-info-window", ! options->use_info_window,
NULL);
}
else if (key == gimp_get_toggle_behavior_mask ())
{
switch (options->pick_mode)
{
case GIMP_COLOR_PICK_MODE_FOREGROUND:
g_object_set (options, "pick-mode", GIMP_COLOR_PICK_MODE_BACKGROUND,
NULL);
break;
case GIMP_COLOR_PICK_MODE_BACKGROUND:
g_object_set (options, "pick-mode", GIMP_COLOR_PICK_MODE_FOREGROUND,
NULL);
break;
default:
break;
}
}
}
static void
gimp_color_picker_tool_oper_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
gboolean proximity,
GimpDisplay *display)
{
GimpColorPickerTool *picker_tool = GIMP_COLOR_PICKER_TOOL (tool);
GimpColorPickerOptions *options = GIMP_COLOR_PICKER_TOOL_GET_OPTIONS (tool);
GdkModifierType toggle_mask;
toggle_mask = gimp_get_toggle_behavior_mask ();
GIMP_COLOR_TOOL (tool)->pick_mode = options->pick_mode;
gimp_tool_pop_status (tool, display);
if (proximity)
{
gchar *status_help = NULL;
GdkModifierType shift_mod = 0;
if (! picker_tool->dialog)
shift_mod = GDK_SHIFT_MASK;
switch (options->pick_mode)
{
case GIMP_COLOR_PICK_MODE_NONE:
status_help = gimp_suggest_modifiers (_("Click in any image to view"
" its color"),
shift_mod & ~state,
NULL, NULL, NULL);
break;
case GIMP_COLOR_PICK_MODE_FOREGROUND:
status_help = gimp_suggest_modifiers (_("Click in any image to pick"
" the foreground color"),
(shift_mod | toggle_mask) &
~state,
NULL, NULL, NULL);
break;
case GIMP_COLOR_PICK_MODE_BACKGROUND:
status_help = gimp_suggest_modifiers (_("Click in any image to pick"
" the background color"),
(shift_mod | toggle_mask) &
~state,
NULL, NULL, NULL);
break;
case GIMP_COLOR_PICK_MODE_PALETTE:
status_help = gimp_suggest_modifiers (_("Click in any image to add"
" the color to the palette"),
shift_mod & ~state,
NULL, NULL, NULL);
break;
}
if (status_help != NULL)
{
gimp_tool_push_status (tool, display, "%s", status_help);
g_free (status_help);
}
}
GIMP_TOOL_CLASS (parent_class)->oper_update (tool, coords, state, proximity,
display);
}
static void
gimp_color_picker_tool_picked (GimpColorTool *color_tool,
GimpColorPickState pick_state,
const Babl *sample_format,
const GimpRGB *color,
gint color_index)
{
GimpColorPickerTool *picker_tool = GIMP_COLOR_PICKER_TOOL (color_tool);
GimpColorPickerOptions *options;
options = GIMP_COLOR_PICKER_TOOL_GET_OPTIONS (color_tool);
if (options->use_info_window && ! picker_tool->dialog)
gimp_color_picker_tool_info_create (picker_tool);
if (picker_tool->dialog)
gimp_color_picker_tool_info_update (picker_tool, sample_format,
color, color_index);
GIMP_COLOR_TOOL_CLASS (parent_class)->picked (color_tool, pick_state,
sample_format, color,
color_index);
}
static void
gimp_color_picker_tool_info_create (GimpColorPickerTool *picker_tool)
{
GimpTool *tool = GIMP_TOOL (picker_tool);
GtkWidget *content_area;
GtkWidget *hbox;
GtkWidget *frame;
GimpRGB color;
g_return_if_fail (tool->drawable != NULL);
picker_tool->dialog = gimp_tool_dialog_new (tool->tool_info,
gimp_display_get_shell (tool->display),
_("Color Picker Information"),
GTK_STOCK_CLOSE,
GTK_RESPONSE_CLOSE,
NULL);
gtk_window_set_focus_on_map (GTK_WINDOW (picker_tool->dialog), FALSE);
gimp_viewable_dialog_set_viewable (GIMP_VIEWABLE_DIALOG (picker_tool->dialog),
GIMP_VIEWABLE (tool->drawable),
GIMP_CONTEXT (gimp_tool_get_options (tool)));
g_signal_connect (picker_tool->dialog, "response",
G_CALLBACK (gimp_color_picker_tool_info_response),
picker_tool);
content_area = gtk_dialog_get_content_area (GTK_DIALOG (picker_tool->dialog));
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 6);
gtk_container_set_border_width (GTK_CONTAINER (hbox), 6);
gtk_box_pack_start (GTK_BOX (content_area), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
picker_tool->color_frame1 = gimp_color_frame_new ();
gimp_color_frame_set_mode (GIMP_COLOR_FRAME (picker_tool->color_frame1),
GIMP_COLOR_FRAME_MODE_PIXEL);
gtk_box_pack_start (GTK_BOX (hbox), picker_tool->color_frame1,
FALSE, FALSE, 0);
gtk_widget_show (picker_tool->color_frame1);
picker_tool->color_frame2 = gimp_color_frame_new ();
gimp_color_frame_set_mode (GIMP_COLOR_FRAME (picker_tool->color_frame2),
GIMP_COLOR_FRAME_MODE_RGB);
gtk_box_pack_start (GTK_BOX (hbox), picker_tool->color_frame2,
FALSE, FALSE, 0);
gtk_widget_show (picker_tool->color_frame2);
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
gimp_rgba_set (&color, 0.0, 0.0, 0.0, 0.0);
picker_tool->color_area =
gimp_color_area_new (&color,
gimp_drawable_has_alpha (tool->drawable) ?
GIMP_COLOR_AREA_LARGE_CHECKS :
GIMP_COLOR_AREA_FLAT,
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK);
gtk_widget_set_size_request (picker_tool->color_area, 48, -1);
gtk_drag_dest_unset (picker_tool->color_area);
gtk_container_add (GTK_CONTAINER (frame), picker_tool->color_area);
gtk_widget_show (picker_tool->color_area);
}
static void
gimp_color_picker_tool_info_response (GtkWidget *widget,
gint response_id,
GimpColorPickerTool *picker_tool)
{
GimpTool *tool = GIMP_TOOL (picker_tool);
gimp_tool_control (tool, GIMP_TOOL_ACTION_HALT, tool->display);
}
static void
gimp_color_picker_tool_info_update (GimpColorPickerTool *picker_tool,
const Babl *sample_format,
const GimpRGB *color,
gint color_index)
{
GimpTool *tool = GIMP_TOOL (picker_tool);
gimp_tool_dialog_set_shell (GIMP_TOOL_DIALOG (picker_tool->dialog),
gimp_display_get_shell (tool->display));
gimp_viewable_dialog_set_viewable (GIMP_VIEWABLE_DIALOG (picker_tool->dialog),
GIMP_VIEWABLE (tool->drawable),
GIMP_CONTEXT (gimp_tool_get_options (tool)));
gimp_color_area_set_color (GIMP_COLOR_AREA (picker_tool->color_area),
color);
gimp_color_frame_set_color (GIMP_COLOR_FRAME (picker_tool->color_frame1),
sample_format, color, color_index);
gimp_color_frame_set_color (GIMP_COLOR_FRAME (picker_tool->color_frame2),
sample_format, color, color_index);
/* don't use gtk_window_present() because it would focus the dialog */
if (gtk_widget_get_visible (picker_tool->dialog))
gdk_window_show (gtk_widget_get_window (picker_tool->dialog));
else
gtk_widget_show (picker_tool->dialog);
}
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