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PIKApp/libpikawidgets/pikacolorbutton.c

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Initial checkin of Pika from heckimp
2023-09-26 00:35:21 +02:00
/* LIBPIKA - The PIKA Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* pikacolorbutton.c
* Copyright (C) 1999-2001 Sven Neumann
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library 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
* Library General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libpikabase/pikabase.h"
#include "libpikacolor/pikacolor.h"
#include "libpikaconfig/pikaconfig.h"
#include "pikawidgetstypes.h"
#include "pikacolorarea.h"
#include "pikacolorbutton.h"
#include "pikacolornotebook.h"
#include "pikacolorselection.h"
#include "pikadialog.h"
#include "pikahelpui.h"
#include "pikaicons.h"
#include "pikawidgets-private.h"
#include "libpika/libpika-intl.h"
/**
* SECTION: pikacolorbutton
* @title: PikaColorButton
* @short_description: Widget for selecting a color from a simple button.
* @see_also: #libpikacolor-pikacolorspace
*
* This widget provides a simple button with a preview showing the
* color.
*
* On click a color selection dialog is opened. Additionally the
* button supports Drag and Drop and has a right-click menu that
* allows one to choose the color from the current FG or BG color. If
* the user changes the color, the "color-changed" signal is emitted.
**/
#define COLOR_BUTTON_KEY "pika-color-button"
#define RESPONSE_RESET 1
#define TODOUBLE(i) (i / 65535.0)
#define TOUINT16(d) ((guint16) (d * 65535 + 0.5))
#define PIKA_COLOR_BUTTON_COLOR_FG "use-foreground"
#define PIKA_COLOR_BUTTON_COLOR_BG "use-background"
#define PIKA_COLOR_BUTTON_COLOR_BLACK "use-black"
#define PIKA_COLOR_BUTTON_COLOR_WHITE "use-white"
#define PIKA_COLOR_BUTTON_GROUP_PREFIX "pika-color-button"
enum
{
COLOR_CHANGED,
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_TITLE,
PROP_COLOR,
PROP_TYPE,
PROP_UPDATE,
PROP_AREA_WIDTH,
PROP_AREA_HEIGHT,
PROP_COLOR_CONFIG
};
struct _PikaColorButtonPrivate
{
gchar *title;
gboolean continuous_update;
GtkWidget *color_area;
GtkWidget *dialog;
GtkWidget *selection;
GSimpleActionGroup *group;
GMenu *menu;
PikaColorConfig *config;
};
#define GET_PRIVATE(obj) (((PikaColorButton *) (obj))->priv)
static void pika_color_button_constructed (GObject *object);
static void pika_color_button_finalize (GObject *object);
static void pika_color_button_dispose (GObject *object);
static void pika_color_button_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void pika_color_button_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static gboolean pika_color_button_button_press (GtkWidget *widget,
GdkEventButton *bevent);
static void pika_color_button_state_flags_changed (GtkWidget *widget,
GtkStateFlags prev_state);
static void pika_color_button_clicked (GtkButton *button);
static GType pika_color_button_get_action_type (PikaColorButton *button);
static void pika_color_button_dialog_response (GtkWidget *dialog,
gint response_id,
PikaColorButton *button);
static void pika_color_button_use_color (GAction *action,
GVariant *parameter,
PikaColorButton *button);
static void pika_color_button_area_changed (GtkWidget *color_area,
PikaColorButton *button);
static void pika_color_button_selection_changed (GtkWidget *selection,
PikaColorButton *button);
static void pika_color_button_help_func (const gchar *help_id,
gpointer help_data);
typedef void (* PikaColorButtonActionCallback) (GAction *action,
GVariant *parameter,
PikaColorButton *button);
typedef struct _PikaColorButtonActionEntry
{
const gchar *name;
PikaColorButtonActionCallback callback;
} PikaColorButtonActionEntry;
static const PikaColorButtonActionEntry actions[] =
{
{
PIKA_COLOR_BUTTON_COLOR_FG,
pika_color_button_use_color
},
{
PIKA_COLOR_BUTTON_COLOR_BG,
pika_color_button_use_color
},
{
PIKA_COLOR_BUTTON_COLOR_BLACK,
pika_color_button_use_color
},
{
PIKA_COLOR_BUTTON_COLOR_WHITE,
pika_color_button_use_color
}
};
G_DEFINE_TYPE_WITH_CODE (PikaColorButton, pika_color_button, PIKA_TYPE_BUTTON,
G_ADD_PRIVATE (PikaColorButton))
#define parent_class pika_color_button_parent_class
static guint pika_color_button_signals[LAST_SIGNAL] = { 0 };
static void
pika_color_button_class_init (PikaColorButtonClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GtkButtonClass *button_class = GTK_BUTTON_CLASS (klass);
PikaRGB color;
parent_class = g_type_class_peek_parent (klass);
pika_color_button_signals[COLOR_CHANGED] =
g_signal_new ("color-changed",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (PikaColorButtonClass, color_changed),
NULL, NULL, NULL,
G_TYPE_NONE, 0);
object_class->constructed = pika_color_button_constructed;
object_class->finalize = pika_color_button_finalize;
object_class->dispose = pika_color_button_dispose;
object_class->get_property = pika_color_button_get_property;
object_class->set_property = pika_color_button_set_property;
widget_class->button_press_event = pika_color_button_button_press;
widget_class->state_flags_changed = pika_color_button_state_flags_changed;
button_class->clicked = pika_color_button_clicked;
klass->color_changed = NULL;
klass->get_action_type = pika_color_button_get_action_type;
pika_rgba_set (&color, 0.0, 0.0, 0.0, 1.0);
/**
* PikaColorButton:title:
*
* The title to be used for the color selection dialog.
*
* Since: 2.4
*/
g_object_class_install_property (object_class, PROP_TITLE,
g_param_spec_string ("title",
"Title",
"The title to be used for the color selection dialog",
NULL,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
/**
* PikaColorButton:color:
*
* The color displayed in the button's color area.
*
* Since: 2.4
*/
g_object_class_install_property (object_class, PROP_COLOR,
pika_param_spec_rgb ("color",
"Color",
"The color displayed in the button's color area",
TRUE, &color,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
/**
* PikaColorButton:type:
*
* The type of the button's color area.
*
* Since: 2.4
*/
g_object_class_install_property (object_class, PROP_TYPE,
g_param_spec_enum ("type",
"Type",
"The type of the button's color area",
PIKA_TYPE_COLOR_AREA_TYPE,
PIKA_COLOR_AREA_FLAT,
PIKA_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
/**
* PikaColorButton:continuous-update:
*
* The update policy of the color button.
*
* Since: 2.4
*/
g_object_class_install_property (object_class, PROP_UPDATE,
g_param_spec_boolean ("continuous-update",
"Contiguous Update",
"The update policy of the color button",
FALSE,
G_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
/**
* PikaColorButton:area-width:
*
* The minimum width of the button's #PikaColorArea.
*
* Since: 2.8
*/
g_object_class_install_property (object_class, PROP_AREA_WIDTH,
g_param_spec_int ("area-width",
"Area Width",
"The minimum width of the button's PikaColorArea",
1, G_MAXINT, 16,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT));
/**
* PikaColorButton:area-height:
*
* The minimum height of the button's #PikaColorArea.
*
* Since: 2.8
*/
g_object_class_install_property (object_class, PROP_AREA_HEIGHT,
g_param_spec_int ("area-height",
"Area Height",
"The minimum height of the button's PikaColorArea",
1, G_MAXINT, 16,
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT));
/**
* PikaColorButton:color-config:
*
* The #PikaColorConfig object used for the button's #PikaColorArea
* and #PikaColorSelection.
*
* Since: 2.10
*/
g_object_class_install_property (object_class, PROP_COLOR_CONFIG,
g_param_spec_object ("color-config",
"Color Config",
"The color config object used",
PIKA_TYPE_COLOR_CONFIG,
G_PARAM_READWRITE));
}
static void
pika_color_button_init (PikaColorButton *button)
{
PikaColorButtonPrivate *priv = pika_color_button_get_instance_private (button);
button->priv = priv;
priv->color_area = g_object_new (PIKA_TYPE_COLOR_AREA,
"drag-mask", GDK_BUTTON1_MASK,
NULL);
g_signal_connect (priv->color_area, "color-changed",
G_CALLBACK (pika_color_button_area_changed),
button);
gtk_container_add (GTK_CONTAINER (button), priv->color_area);
gtk_widget_show (priv->color_area);
}
static void
pika_color_button_constructed (GObject *object)
{
PikaColorButton *button = PIKA_COLOR_BUTTON (object);
PikaColorButtonClass *klass = PIKA_COLOR_BUTTON_GET_CLASS (object);
PikaColorButtonPrivate *priv = GET_PRIVATE (object);
GMenu *section;
gint i;
G_OBJECT_CLASS (parent_class)->constructed (object);
priv->group = g_simple_action_group_new ();
for (i = 0; i < G_N_ELEMENTS (actions); i++)
{
GAction *action;
action = g_object_new (klass->get_action_type (button),
"name", actions[i].name,
NULL);
if (actions[i].callback)
g_signal_connect (action, "activate",
G_CALLBACK (actions[i].callback),
button);
g_action_map_add_action (G_ACTION_MAP (priv->group), action);
g_object_unref (action);
}
gtk_widget_insert_action_group (GTK_WIDGET (button),
PIKA_COLOR_BUTTON_GROUP_PREFIX,
G_ACTION_GROUP (priv->group));
/* right-click opens a popup */
priv->menu = g_menu_new ();
section = g_menu_new ();
g_menu_append (section, _("_Foreground Color"), PIKA_COLOR_BUTTON_GROUP_PREFIX "." PIKA_COLOR_BUTTON_COLOR_FG);
g_menu_append (section, _("_Background Color"), PIKA_COLOR_BUTTON_GROUP_PREFIX "." PIKA_COLOR_BUTTON_COLOR_BG);
g_menu_append_section (priv->menu, NULL, G_MENU_MODEL (section));
g_clear_object (&section);
section = g_menu_new ();
g_menu_append (section, _("Blac_k"), PIKA_COLOR_BUTTON_GROUP_PREFIX "." PIKA_COLOR_BUTTON_COLOR_BLACK);
g_menu_append (section, _("_White"), PIKA_COLOR_BUTTON_GROUP_PREFIX "." PIKA_COLOR_BUTTON_COLOR_WHITE);
g_menu_append_section (priv->menu, NULL, G_MENU_MODEL (section));
g_clear_object (&section);
}
static void
pika_color_button_finalize (GObject *object)
{
PikaColorButtonPrivate *priv = GET_PRIVATE (object);
g_clear_pointer (&priv->title, g_free);
g_clear_object (&priv->menu);
g_clear_object (&priv->group);
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
pika_color_button_dispose (GObject *object)
{
PikaColorButton *button = PIKA_COLOR_BUTTON (object);
PikaColorButtonPrivate *priv = GET_PRIVATE (button);
g_clear_pointer (&priv->dialog, gtk_widget_destroy);
priv->selection = NULL;
g_clear_pointer (&priv->color_area, gtk_widget_destroy);
pika_color_button_set_color_config (button, NULL);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
pika_color_button_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
PikaColorButtonPrivate *priv = GET_PRIVATE (object);
switch (property_id)
{
case PROP_TITLE:
g_value_set_string (value, priv->title);
break;
case PROP_COLOR:
g_object_get_property (G_OBJECT (priv->color_area), "color", value);
break;
case PROP_TYPE:
g_object_get_property (G_OBJECT (priv->color_area), "type", value);
break;
case PROP_UPDATE:
g_value_set_boolean (value, priv->continuous_update);
break;
case PROP_COLOR_CONFIG:
g_value_set_object (value, priv->config);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
pika_color_button_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
PikaColorButton *button = PIKA_COLOR_BUTTON (object);
PikaColorButtonPrivate *priv = GET_PRIVATE (object);
gint other;
switch (property_id)
{
case PROP_TITLE:
pika_color_button_set_title (button, g_value_get_string (value));
break;
case PROP_COLOR:
g_object_set_property (G_OBJECT (priv->color_area), "color", value);
break;
case PROP_TYPE:
g_object_set_property (G_OBJECT (priv->color_area), "type", value);
break;
case PROP_UPDATE:
pika_color_button_set_update (button, g_value_get_boolean (value));
break;
case PROP_AREA_WIDTH:
gtk_widget_get_size_request (priv->color_area, NULL, &other);
gtk_widget_set_size_request (priv->color_area,
g_value_get_int (value), other);
break;
case PROP_AREA_HEIGHT:
gtk_widget_get_size_request (priv->color_area, &other, NULL);
gtk_widget_set_size_request (priv->color_area,
other, g_value_get_int (value));
break;
case PROP_COLOR_CONFIG:
pika_color_button_set_color_config (button, g_value_get_object (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static gboolean
pika_color_button_button_press (GtkWidget *widget,
GdkEventButton *bevent)
{
PikaColorButtonPrivate *priv = GET_PRIVATE (widget);
if (gdk_event_triggers_context_menu ((GdkEvent *) bevent))
{
GtkWidget *menu;
menu = gtk_menu_new_from_model (G_MENU_MODEL (priv->menu));
/*gtk_menu_set_screen (GTK_MENU (menu), gtk_widget_get_screen (widget));*/
gtk_menu_attach_to_widget (GTK_MENU (menu), widget, NULL);
gtk_menu_popup_at_pointer (GTK_MENU (menu), (GdkEvent *) bevent);
}
return GTK_WIDGET_CLASS (parent_class)->button_press_event (widget, bevent);
}
static void
pika_color_button_state_flags_changed (GtkWidget *widget,
GtkStateFlags previous_state)
{
PikaColorButtonPrivate *priv = GET_PRIVATE (widget);
if (! gtk_widget_is_sensitive (widget) && priv->dialog)
gtk_widget_hide (priv->dialog);
if (GTK_WIDGET_CLASS (parent_class)->state_flags_changed)
GTK_WIDGET_CLASS (parent_class)->state_flags_changed (widget,
previous_state);
}
static void
pika_color_button_clicked (GtkButton *button)
{
PikaColorButton *color_button = PIKA_COLOR_BUTTON (button);
PikaColorButtonPrivate *priv = GET_PRIVATE (button);
PikaRGB color;
if (! priv->dialog)
{
GtkWidget *dialog;
dialog = priv->dialog =
pika_dialog_new (priv->title, "pika-color-button",
gtk_widget_get_toplevel (GTK_WIDGET (button)), 0,
pika_color_button_help_func, NULL,
_("_Reset"), RESPONSE_RESET,
_("_Cancel"), GTK_RESPONSE_CANCEL,
_("_OK"), GTK_RESPONSE_OK,
NULL);
g_object_set_data (G_OBJECT (dialog), COLOR_BUTTON_KEY, button);
pika_dialog_set_alternative_button_order (GTK_DIALOG (dialog),
RESPONSE_RESET,
GTK_RESPONSE_OK,
GTK_RESPONSE_CANCEL,
-1);
g_signal_connect (dialog, "response",
G_CALLBACK (pika_color_button_dialog_response),
color_button);
g_signal_connect (dialog, "destroy",
G_CALLBACK (gtk_widget_destroyed),
&priv->dialog);
priv->selection = pika_color_selection_new ();
gtk_container_set_border_width (GTK_CONTAINER (priv->selection), 6);
pika_color_selection_set_show_alpha (PIKA_COLOR_SELECTION (priv->selection),
pika_color_button_has_alpha (color_button));
pika_color_selection_set_config (PIKA_COLOR_SELECTION (priv->selection),
priv->config);
gtk_box_pack_start (GTK_BOX (gtk_dialog_get_content_area (GTK_DIALOG (dialog))),
priv->selection, TRUE, TRUE, 0);
gtk_widget_show (priv->selection);
g_signal_connect (priv->selection, "color-changed",
G_CALLBACK (pika_color_button_selection_changed),
button);
}
pika_color_button_get_color (color_button, &color);
g_signal_handlers_block_by_func (priv->selection,
pika_color_button_selection_changed,
button);
pika_color_selection_set_color (PIKA_COLOR_SELECTION (priv->selection), &color);
pika_color_selection_set_old_color (PIKA_COLOR_SELECTION (priv->selection),
&color);
g_signal_handlers_unblock_by_func (priv->selection,
pika_color_button_selection_changed,
button);
gtk_window_present (GTK_WINDOW (priv->dialog));
}
static GType
pika_color_button_get_action_type (PikaColorButton *button)
{
return G_TYPE_SIMPLE_ACTION;
}
/* public functions */
/**
* pika_color_button_new:
* @title: String that will be used as title for the color_selector.
* @width: Width of the colorpreview in pixels.
* @height: Height of the colorpreview in pixels.
* @color: A pointer to a #PikaRGB color.
* @type: The type of transparency to be displayed.
*
* Creates a new #PikaColorButton widget.
*
* This returns a button with a preview showing the color.
* When the button is clicked a GtkColorSelectionDialog is opened.
* If the user changes the color the new color is written into the
* array that was used to pass the initial color and the "color-changed"
* signal is emitted.
*
* Returns: Pointer to the new #PikaColorButton widget.
**/
GtkWidget *
pika_color_button_new (const gchar *title,
gint width,
gint height,
const PikaRGB *color,
PikaColorAreaType type)
{
g_return_val_if_fail (color != NULL, NULL);
g_return_val_if_fail (width > 0, NULL);
g_return_val_if_fail (height > 0, NULL);
return g_object_new (PIKA_TYPE_COLOR_BUTTON,
"title", title,
"type", type,
"color", color,
"area-width", width,
"area-height", height,
NULL);
}
/**
* pika_color_button_set_title:
* @button: a #PikaColorButton.
* @title: the new title.
*
* Sets the @button dialog's title.
*
* Since: 2.10
**/
void
pika_color_button_set_title (PikaColorButton *button,
const gchar *title)
{
PikaColorButtonPrivate *priv;
g_return_if_fail (PIKA_IS_COLOR_BUTTON (button));
g_return_if_fail (title != NULL);
priv = GET_PRIVATE (button);
g_free (priv->title);
priv->title = g_strdup (title);
if (priv->dialog)
gtk_window_set_title (GTK_WINDOW (priv->dialog), title);
g_object_notify (G_OBJECT (button), "title");
}
/**
* pika_color_button_get_title:
* @button: a #PikaColorButton.
*
* Returns: The @button dialog's title.
*
* Since: 2.10
**/
const gchar *
pika_color_button_get_title (PikaColorButton *button)
{
PikaColorButtonPrivate *priv;
g_return_val_if_fail (PIKA_IS_COLOR_BUTTON (button), NULL);
priv = GET_PRIVATE (button);
return priv->title;
}
/**
* pika_color_button_set_color:
* @button: Pointer to a #PikaColorButton.
* @color: Pointer to the new #PikaRGB color.
*
* Sets the @button to the given @color.
**/
void
pika_color_button_set_color (PikaColorButton *button,
const PikaRGB *color)
{
PikaColorButtonPrivate *priv;
g_return_if_fail (PIKA_IS_COLOR_BUTTON (button));
g_return_if_fail (color != NULL);
priv = GET_PRIVATE (button);
pika_color_area_set_color (PIKA_COLOR_AREA (priv->color_area), color);
g_object_notify (G_OBJECT (button), "color");
}
/**
* pika_color_button_get_color:
* @button: Pointer to a #PikaColorButton.
* @color: (out caller-allocates): Pointer to a #PikaRGB struct
* used to return the color.
*
* Retrieves the currently set color from the @button.
**/
void
pika_color_button_get_color (PikaColorButton *button,
PikaRGB *color)
{
PikaColorButtonPrivate *priv;
g_return_if_fail (PIKA_IS_COLOR_BUTTON (button));
g_return_if_fail (color != NULL);
priv = GET_PRIVATE (button);
pika_color_area_get_color (PIKA_COLOR_AREA (priv->color_area), color);
}
/**
* pika_color_button_has_alpha:
* @button: Pointer to a #PikaColorButton.
*
* Checks whether the @buttons shows transparency information.
*
* Returns: %TRUE if the @button shows transparency information, %FALSE
* otherwise.
**/
gboolean
pika_color_button_has_alpha (PikaColorButton *button)
{
PikaColorButtonPrivate *priv;
g_return_val_if_fail (PIKA_IS_COLOR_BUTTON (button), FALSE);
priv = GET_PRIVATE (button);
return pika_color_area_has_alpha (PIKA_COLOR_AREA (priv->color_area));
}
/**
* pika_color_button_set_type:
* @button: Pointer to a #PikaColorButton.
* @type: the new #PikaColorAreaType
*
* Sets the @button to the given @type. See also pika_color_area_set_type().
**/
void
pika_color_button_set_type (PikaColorButton *button,
PikaColorAreaType type)
{
PikaColorButtonPrivate *priv;
g_return_if_fail (PIKA_IS_COLOR_BUTTON (button));
priv = GET_PRIVATE (button);
pika_color_area_set_type (PIKA_COLOR_AREA (priv->color_area), type);
g_object_notify (G_OBJECT (button), "type");
}
/**
* pika_color_button_get_update:
* @button: A #PikaColorButton widget.
*
* Returns the color button's @continuous_update property.
*
* Returns: the @continuous_update property.
**/
gboolean
pika_color_button_get_update (PikaColorButton *button)
{
PikaColorButtonPrivate *priv;
g_return_val_if_fail (PIKA_IS_COLOR_BUTTON (button), FALSE);
priv = GET_PRIVATE (button);
return priv->continuous_update;
}
/**
* pika_color_button_set_update:
* @button: A #PikaColorButton widget.
* @continuous: The new setting of the @continuous_update property.
*
* When set to %TRUE, the @button will emit the "color-changed"
* continuously while the color is changed in the color selection
* dialog.
**/
void
pika_color_button_set_update (PikaColorButton *button,
gboolean continuous)
{
PikaColorButtonPrivate *priv;
g_return_if_fail (PIKA_IS_COLOR_BUTTON (button));
priv = GET_PRIVATE (button);
if (continuous != priv->continuous_update)
{
priv->continuous_update = continuous ? TRUE : FALSE;
if (priv->selection)
{
PikaRGB color;
if (priv->continuous_update)
{
pika_color_selection_get_color (PIKA_COLOR_SELECTION (priv->selection),
&color);
pika_color_button_set_color (button, &color);
}
else
{
pika_color_selection_get_old_color (PIKA_COLOR_SELECTION (priv->selection),
&color);
pika_color_button_set_color (button, &color);
}
}
g_object_notify (G_OBJECT (button), "continuous-update");
}
}
/**
* pika_color_button_set_color_config:
* @button: a #PikaColorButton widget.
* @config: a #PikaColorConfig object.
*
* Sets the color management configuration to use with this color button's
* #PikaColorArea.
*
* Since: 2.10
*/
void
pika_color_button_set_color_config (PikaColorButton *button,
PikaColorConfig *config)
{
PikaColorButtonPrivate *priv;
g_return_if_fail (PIKA_IS_COLOR_BUTTON (button));
g_return_if_fail (config == NULL || PIKA_IS_COLOR_CONFIG (config));
priv = GET_PRIVATE (button);
if (g_set_object (&priv->config, config))
{
if (priv->color_area)
pika_color_area_set_color_config (PIKA_COLOR_AREA (priv->color_area),
priv->config);
if (priv->selection)
pika_color_selection_set_config (PIKA_COLOR_SELECTION (priv->selection),
priv->config);
}
}
/**
* pika_color_button_get_action_group:
* @button: a #PikaColorButton.
*
* Returns: (transfer none): The @button's #GSimpleActionGroup.
*
* Since: 3.0
**/
GSimpleActionGroup *
pika_color_button_get_action_group (PikaColorButton *button)
{
PikaColorButtonPrivate *priv;
g_return_val_if_fail (PIKA_IS_COLOR_BUTTON (button), NULL);
priv = GET_PRIVATE (button);
return priv->group;
}
/* private functions */
static void
pika_color_button_dialog_response (GtkWidget *dialog,
gint response_id,
PikaColorButton *button)
{
PikaColorButtonPrivate *priv = GET_PRIVATE (button);
PikaRGB color;
switch (response_id)
{
case RESPONSE_RESET:
pika_color_selection_reset (PIKA_COLOR_SELECTION (priv->selection));
break;
case GTK_RESPONSE_OK:
if (! priv->continuous_update)
{
pika_color_selection_get_color (PIKA_COLOR_SELECTION (priv->selection),
&color);
pika_color_button_set_color (button, &color);
}
gtk_widget_hide (dialog);
break;
default:
if (priv->continuous_update)
{
pika_color_selection_get_old_color (PIKA_COLOR_SELECTION (priv->selection),
&color);
pika_color_button_set_color (button, &color);
}
gtk_widget_hide (dialog);
break;
}
}
static void
pika_color_button_use_color (GAction *action,
GVariant *parameter,
PikaColorButton *button)
{
const gchar *name;
PikaRGB color;
name = g_action_get_name (action);
pika_color_button_get_color (button, &color);
if (! strcmp (name, PIKA_COLOR_BUTTON_COLOR_FG))
{
if (_pika_get_foreground_func)
_pika_get_foreground_func (&color);
else
pika_rgba_set (&color, 0.0, 0.0, 0.0, 1.0);
}
else if (! strcmp (name, PIKA_COLOR_BUTTON_COLOR_BG))
{
if (_pika_get_background_func)
_pika_get_background_func (&color);
else
pika_rgba_set (&color, 1.0, 1.0, 1.0, 1.0);
}
else if (! strcmp (name, PIKA_COLOR_BUTTON_COLOR_BLACK))
{
pika_rgba_set (&color, 0.0, 0.0, 0.0, 1.0);
}
else if (! strcmp (name, PIKA_COLOR_BUTTON_COLOR_WHITE))
{
pika_rgba_set (&color, 1.0, 1.0, 1.0, 1.0);
}
pika_color_button_set_color (button, &color);
}
static void
pika_color_button_area_changed (GtkWidget *color_area,
PikaColorButton *button)
{
PikaColorButtonPrivate *priv = GET_PRIVATE (button);
if (priv->selection)
{
PikaRGB color;
pika_color_button_get_color (button, &color);
g_signal_handlers_block_by_func (priv->selection,
pika_color_button_selection_changed,
button);
pika_color_selection_set_color (PIKA_COLOR_SELECTION (priv->selection),
&color);
g_signal_handlers_unblock_by_func (priv->selection,
pika_color_button_selection_changed,
button);
}
g_signal_emit (button, pika_color_button_signals[COLOR_CHANGED], 0);
}
static void
pika_color_button_selection_changed (GtkWidget *selection,
PikaColorButton *button)
{
PikaColorButtonPrivate *priv = GET_PRIVATE (button);
if (priv->continuous_update)
{
PikaRGB color;
pika_color_selection_get_color (PIKA_COLOR_SELECTION (selection), &color);
g_signal_handlers_block_by_func (priv->color_area,
pika_color_button_area_changed,
button);
pika_color_area_set_color (PIKA_COLOR_AREA (priv->color_area), &color);
g_signal_handlers_unblock_by_func (priv->color_area,
pika_color_button_area_changed,
button);
g_signal_emit (button, pika_color_button_signals[COLOR_CHANGED], 0);
}
}
static void
pika_color_button_help_func (const gchar *help_id,
gpointer help_data)
{
PikaColorButton *button;
PikaColorButtonPrivate *priv;
PikaColorSelection *selection;
PikaColorNotebook *notebook;
PikaColorSelector *current;
button = g_object_get_data (G_OBJECT (help_data), COLOR_BUTTON_KEY);
priv = GET_PRIVATE (button);
selection = PIKA_COLOR_SELECTION (priv->selection);
notebook = PIKA_COLOR_NOTEBOOK (pika_color_selection_get_notebook (selection));
current = pika_color_notebook_get_current_selector (notebook);
help_id = PIKA_COLOR_SELECTOR_GET_CLASS (current)->help_id;
pika_standard_help_func (help_id, NULL);
}