mirror of https://github.com/GNOME/gimp.git
325 lines
10 KiB
C
325 lines
10 KiB
C
/* GIMP - The GNU Image Manipulation Program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#include "config.h"
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#include <gegl.h>
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#include <gtk/gtk.h>
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#include "libgimpcolor/gimpcolor.h"
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#include "libgimpwidgets/gimpwidgets.h"
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#include "widgets-types.h"
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#include "config/gimpcoreconfig.h"
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#include "core/gimp.h"
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#include "core/gimpcontext.h"
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#include "core/gimpmarshal.h"
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#include "gimpaction.h"
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#include "gimpactiongroup.h"
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#include "gimpactionimpl.h"
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#include "gimpcolordialog.h"
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#include "gimpcolorpanel.h"
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#define RGBA_EPSILON 1e-6
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enum
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{
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RESPONSE,
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LAST_SIGNAL
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};
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/* local function prototypes */
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static void gimp_color_panel_dispose (GObject *object);
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static gboolean gimp_color_panel_button_press (GtkWidget *widget,
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GdkEventButton *bevent);
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static void gimp_color_panel_clicked (GtkButton *button);
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static void gimp_color_panel_color_changed (GimpColorButton *button);
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static GType gimp_color_panel_get_action_type (GimpColorButton *button);
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static void gimp_color_panel_dialog_update (GimpColorDialog *dialog,
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const GimpRGB *color,
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GimpColorDialogState state,
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GimpColorPanel *panel);
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G_DEFINE_TYPE (GimpColorPanel, gimp_color_panel, GIMP_TYPE_COLOR_BUTTON)
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#define parent_class gimp_color_panel_parent_class
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static guint color_panel_signals[LAST_SIGNAL] = { 0, };
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static void
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gimp_color_panel_class_init (GimpColorPanelClass *klass)
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{
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GObjectClass *object_class = G_OBJECT_CLASS (klass);
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GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
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GtkButtonClass *button_class = GTK_BUTTON_CLASS (klass);
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GimpColorButtonClass *color_button_class = GIMP_COLOR_BUTTON_CLASS (klass);
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object_class->dispose = gimp_color_panel_dispose;
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widget_class->button_press_event = gimp_color_panel_button_press;
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button_class->clicked = gimp_color_panel_clicked;
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color_button_class->color_changed = gimp_color_panel_color_changed;
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color_button_class->get_action_type = gimp_color_panel_get_action_type;
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color_panel_signals[RESPONSE] =
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g_signal_new ("response",
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G_TYPE_FROM_CLASS (klass),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GimpColorPanelClass, response),
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NULL, NULL, NULL,
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G_TYPE_NONE, 1,
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GIMP_TYPE_COLOR_DIALOG_STATE);
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}
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static void
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gimp_color_panel_init (GimpColorPanel *panel)
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{
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panel->context = NULL;
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panel->color_dialog = NULL;
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}
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static void
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gimp_color_panel_dispose (GObject *object)
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{
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GimpColorPanel *panel = GIMP_COLOR_PANEL (object);
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if (panel->color_dialog)
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{
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gtk_widget_destroy (panel->color_dialog);
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panel->color_dialog = NULL;
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}
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G_OBJECT_CLASS (parent_class)->dispose (object);
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}
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static gboolean
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gimp_color_panel_button_press (GtkWidget *widget,
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GdkEventButton *bevent)
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{
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if (gdk_event_triggers_context_menu ((GdkEvent *) bevent))
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{
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GimpColorButton *color_button;
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GimpColorPanel *color_panel;
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GtkUIManager *ui_manager;
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GimpActionGroup *group;
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GimpAction *action;
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GimpRGB color;
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color_button = GIMP_COLOR_BUTTON (widget);
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color_panel = GIMP_COLOR_PANEL (widget);
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ui_manager = gimp_color_button_get_ui_manager (color_button);
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group = gtk_ui_manager_get_action_groups (ui_manager)->data;
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action = gimp_action_group_get_action (group,
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"color-button-use-foreground");
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gimp_action_set_visible (action, color_panel->context != NULL);
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action = gimp_action_group_get_action (group,
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"color-button-use-background");
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gimp_action_set_visible (action, color_panel->context != NULL);
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if (color_panel->context)
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{
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action = gimp_action_group_get_action (group,
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"color-button-use-foreground");
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gimp_context_get_foreground (color_panel->context, &color);
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g_object_set (action, "color", &color, NULL);
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action = gimp_action_group_get_action (group,
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"color-button-use-background");
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gimp_context_get_background (color_panel->context, &color);
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g_object_set (action, "color", &color, NULL);
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}
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action = gimp_action_group_get_action (group, "color-button-use-black");
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gimp_rgba_set (&color, 0.0, 0.0, 0.0, GIMP_OPACITY_OPAQUE);
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g_object_set (action, "color", &color, NULL);
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action = gimp_action_group_get_action (group, "color-button-use-white");
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gimp_rgba_set (&color, 1.0, 1.0, 1.0, GIMP_OPACITY_OPAQUE);
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g_object_set (action, "color", &color, NULL);
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}
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if (GTK_WIDGET_CLASS (parent_class)->button_press_event)
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return GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, bevent);
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return FALSE;
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}
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static void
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gimp_color_panel_clicked (GtkButton *button)
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{
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GimpColorPanel *panel = GIMP_COLOR_PANEL (button);
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GimpRGB color;
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gimp_color_button_get_color (GIMP_COLOR_BUTTON (button), &color);
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if (! panel->color_dialog)
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{
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GimpColorButton *color_button = GIMP_COLOR_BUTTON (button);
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panel->color_dialog =
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gimp_color_dialog_new (NULL, panel->context, TRUE,
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gimp_color_button_get_title (color_button),
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NULL, NULL,
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GTK_WIDGET (button),
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NULL, NULL,
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&color,
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gimp_color_button_get_update (color_button),
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gimp_color_button_has_alpha (color_button));
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g_signal_connect (panel->color_dialog, "destroy",
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G_CALLBACK (gtk_widget_destroyed),
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&panel->color_dialog);
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g_signal_connect (panel->color_dialog, "update",
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G_CALLBACK (gimp_color_panel_dialog_update),
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panel);
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}
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else
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{
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gimp_color_dialog_set_color (GIMP_COLOR_DIALOG (panel->color_dialog),
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&color);
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}
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gtk_window_present (GTK_WINDOW (panel->color_dialog));
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}
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static GType
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gimp_color_panel_get_action_type (GimpColorButton *button)
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{
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return GIMP_TYPE_ACTION_IMPL;
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}
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/* public functions */
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GtkWidget *
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gimp_color_panel_new (const gchar *title,
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const GimpRGB *color,
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GimpColorAreaType type,
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gint width,
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gint height)
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{
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g_return_val_if_fail (title != NULL, NULL);
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g_return_val_if_fail (color != NULL, NULL);
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g_return_val_if_fail (width > 0, NULL);
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g_return_val_if_fail (height > 0, NULL);
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return g_object_new (GIMP_TYPE_COLOR_PANEL,
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"title", title,
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"type", type,
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"color", color,
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"area-width", width,
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"area-height", height,
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NULL);
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}
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static void
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gimp_color_panel_color_changed (GimpColorButton *button)
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{
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GimpColorPanel *panel = GIMP_COLOR_PANEL (button);
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GimpRGB color;
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if (panel->color_dialog)
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{
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GimpRGB dialog_color;
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gimp_color_button_get_color (GIMP_COLOR_BUTTON (button), &color);
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gimp_color_dialog_get_color (GIMP_COLOR_DIALOG (panel->color_dialog),
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&dialog_color);
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if (gimp_rgba_distance (&color, &dialog_color) > RGBA_EPSILON ||
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color.a != dialog_color.a)
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{
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gimp_color_dialog_set_color (GIMP_COLOR_DIALOG (panel->color_dialog),
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&color);
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}
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}
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}
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void
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gimp_color_panel_set_context (GimpColorPanel *panel,
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GimpContext *context)
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{
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g_return_if_fail (GIMP_IS_COLOR_PANEL (panel));
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g_return_if_fail (context == NULL || GIMP_IS_CONTEXT (context));
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panel->context = context;
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if (context)
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gimp_color_button_set_color_config (GIMP_COLOR_BUTTON (panel),
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context->gimp->config->color_management);
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}
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void
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gimp_color_panel_dialog_response (GimpColorPanel *panel,
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GimpColorDialogState state)
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{
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g_return_if_fail (GIMP_IS_COLOR_PANEL (panel));
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g_return_if_fail (state == GIMP_COLOR_DIALOG_OK ||
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state == GIMP_COLOR_DIALOG_CANCEL);
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if (panel->color_dialog && gtk_widget_get_visible (panel->color_dialog))
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gimp_color_panel_dialog_update (NULL, NULL, state, panel);
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}
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/* private functions */
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static void
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gimp_color_panel_dialog_update (GimpColorDialog *dialog,
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const GimpRGB *color,
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GimpColorDialogState state,
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GimpColorPanel *panel)
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{
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switch (state)
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{
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case GIMP_COLOR_DIALOG_UPDATE:
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if (gimp_color_button_get_update (GIMP_COLOR_BUTTON (panel)))
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gimp_color_button_set_color (GIMP_COLOR_BUTTON (panel), color);
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break;
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case GIMP_COLOR_DIALOG_OK:
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case GIMP_COLOR_DIALOG_CANCEL:
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/* GimpColorDialog returns the appropriate color (new one or
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* original one if process cancelled.
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*/
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gimp_color_button_set_color (GIMP_COLOR_BUTTON (panel), color);
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gtk_widget_hide (panel->color_dialog);
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g_signal_emit (panel, color_panel_signals[RESPONSE], 0,
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state);
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break;
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}
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}
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