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gtk2/gtk/gtkcolorsel.c
Benjamin Otte 872ef111ec gdk: Make gdk_pixbuf_get_from_*() bindable 
The ownership of the return value for gdk_pixbuf_get_from_window() and
gdk_pixbuf_get_from_surface() was determined by the first argument.

Because that is an ugly design and the functions are new to GTK3, we
decided to adapt them.
And that adaptation was quite easy since almost no one passses anything
but NULL as the first argument.
2010-10-02 03:08:24 +02:00

2872 lines
85 KiB
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/* GTK - The GIMP Toolkit
* Copyright (C) 2000 Red Hat, Inc.
* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
*
* 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 2 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
* Lesser 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, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* Modified by the GTK+ Team and others 1997-2001. See the AUTHORS
* file for a list of people on the GTK+ Team. See the ChangeLog
* files for a list of changes. These files are distributed with
* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
*/
#include "config.h"
#include "gtkcolorsel.h"
#include <math.h>
#include <string.h>
#include "gdkconfig.h"
#include "gdk/gdkkeysyms.h"
#include "gtkhsv.h"
#include "gtkwindow.h"
#include "gtkselection.h"
#include "gtkdnd.h"
#include "gtkdrawingarea.h"
#include "gtkhbox.h"
#include "gtkhbbox.h"
#include "gtkrc.h"
#include "gtkframe.h"
#include "gtktable.h"
#include "gtklabel.h"
#include "gtkmarshalers.h"
#include "gtkimage.h"
#include "gtkspinbutton.h"
#include "gtkrange.h"
#include "gtkhscale.h"
#include "gtkentry.h"
#include "gtkbutton.h"
#include "gtkhseparator.h"
#include "gtkinvisible.h"
#include "gtkmenuitem.h"
#include "gtkmain.h"
#include "gtksettings.h"
#include "gtkstock.h"
#include "gtkaccessible.h"
#include "gtksizerequest.h"
#include "gtkprivate.h"
#include "gtkintl.h"
/* Number of elements in the custom palatte */
#define GTK_CUSTOM_PALETTE_WIDTH 10
#define GTK_CUSTOM_PALETTE_HEIGHT 2
#define CUSTOM_PALETTE_ENTRY_WIDTH 20
#define CUSTOM_PALETTE_ENTRY_HEIGHT 20
/* The cursor for the dropper */
#define DROPPER_WIDTH 17
#define DROPPER_HEIGHT 17
#define DROPPER_STRIDE (DROPPER_WIDTH * 4)
#define DROPPER_X_HOT 2
#define DROPPER_Y_HOT 16
#define SAMPLE_WIDTH 64
#define SAMPLE_HEIGHT 28
#define CHECK_SIZE 16
#define BIG_STEP 20
/* Conversion between 0->1 double and and guint16. See
* scale_round() below for more general conversions
*/
#define SCALE(i) (i / 65535.)
#define UNSCALE(d) ((guint16)(d * 65535 + 0.5))
#define INTENSITY(r, g, b) ((r) * 0.30 + (g) * 0.59 + (b) * 0.11)
enum {
COLOR_CHANGED,
LAST_SIGNAL
};
enum {
PROP_0,
PROP_HAS_PALETTE,
PROP_HAS_OPACITY_CONTROL,
PROP_CURRENT_COLOR,
PROP_CURRENT_ALPHA
};
enum {
COLORSEL_RED = 0,
COLORSEL_GREEN = 1,
COLORSEL_BLUE = 2,
COLORSEL_OPACITY = 3,
COLORSEL_HUE,
COLORSEL_SATURATION,
COLORSEL_VALUE,
COLORSEL_NUM_CHANNELS
};
struct _GtkColorSelectionPrivate
{
guint has_opacity : 1;
guint has_palette : 1;
guint changing : 1;
guint default_set : 1;
guint default_alpha_set : 1;
guint has_grab : 1;
gdouble color[COLORSEL_NUM_CHANNELS];
gdouble old_color[COLORSEL_NUM_CHANNELS];
GtkWidget *triangle_colorsel;
GtkWidget *hue_spinbutton;
GtkWidget *sat_spinbutton;
GtkWidget *val_spinbutton;
GtkWidget *red_spinbutton;
GtkWidget *green_spinbutton;
GtkWidget *blue_spinbutton;
GtkWidget *opacity_slider;
GtkWidget *opacity_label;
GtkWidget *opacity_entry;
GtkWidget *palette_frame;
GtkWidget *hex_entry;
/* The Palette code */
GtkWidget *custom_palette [GTK_CUSTOM_PALETTE_WIDTH][GTK_CUSTOM_PALETTE_HEIGHT];
/* The color_sample stuff */
GtkWidget *sample_area;
GtkWidget *old_sample;
GtkWidget *cur_sample;
GtkWidget *colorsel;
/* Window for grabbing on */
GtkWidget *dropper_grab_widget;
guint32 grab_time;
GdkDevice *keyboard_device;
GdkDevice *pointer_device;
/* Connection to settings */
gulong settings_connection;
};
static void gtk_color_selection_destroy (GtkWidget *widget);
static void gtk_color_selection_finalize (GObject *object);
static void update_color (GtkColorSelection *colorsel);
static void gtk_color_selection_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec);
static void gtk_color_selection_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec);
static void gtk_color_selection_realize (GtkWidget *widget);
static void gtk_color_selection_unrealize (GtkWidget *widget);
static void gtk_color_selection_show_all (GtkWidget *widget);
static gboolean gtk_color_selection_grab_broken (GtkWidget *widget,
GdkEventGrabBroken *event);
static void gtk_color_selection_set_palette_color (GtkColorSelection *colorsel,
gint index,
GdkColor *color);
static void set_focus_line_attributes (GtkWidget *drawing_area,
cairo_t *cr,
gint *focus_width);
static void default_noscreen_change_palette_func (const GdkColor *colors,
gint n_colors);
static void default_change_palette_func (GdkScreen *screen,
const GdkColor *colors,
gint n_colors);
static void make_control_relations (AtkObject *atk_obj,
GtkWidget *widget);
static void make_all_relations (AtkObject *atk_obj,
GtkColorSelectionPrivate *priv);
static void hsv_changed (GtkWidget *hsv,
gpointer data);
static void get_screen_color (GtkWidget *button);
static void adjustment_changed (GtkAdjustment *adjustment,
gpointer data);
static void opacity_entry_changed (GtkWidget *opacity_entry,
gpointer data);
static void hex_changed (GtkWidget *hex_entry,
gpointer data);
static gboolean hex_focus_out (GtkWidget *hex_entry,
GdkEventFocus *event,
gpointer data);
static void color_sample_new (GtkColorSelection *colorsel);
static void make_label_spinbutton (GtkColorSelection *colorsel,
GtkWidget **spinbutton,
gchar *text,
GtkWidget *table,
gint i,
gint j,
gint channel_type,
const gchar *tooltip);
static void make_palette_frame (GtkColorSelection *colorsel,
GtkWidget *table,
gint i,
gint j);
static void set_selected_palette (GtkColorSelection *colorsel,
int x,
int y);
static void set_focus_line_attributes (GtkWidget *drawing_area,
cairo_t *cr,
gint *focus_width);
static gboolean mouse_press (GtkWidget *invisible,
GdkEventButton *event,
gpointer data);
static void palette_change_notify_instance (GObject *object,
GParamSpec *pspec,
gpointer data);
static void update_palette (GtkColorSelection *colorsel);
static void shutdown_eyedropper (GtkWidget *widget);
static guint color_selection_signals[LAST_SIGNAL] = { 0 };
static const gchar default_colors[] = "black:white:gray50:red:purple:blue:light blue:green:yellow:orange:lavender:brown:goldenrod4:dodger blue:pink:light green:gray10:gray30:gray75:gray90";
static GtkColorSelectionChangePaletteFunc noscreen_change_palette_hook = default_noscreen_change_palette_func;
static GtkColorSelectionChangePaletteWithScreenFunc change_palette_hook = default_change_palette_func;
static const guchar dropper_bits[] = {
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377\377\377\377\377\377\377\377\377\377"
"\377\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377\377\377\377\0\0\0\377"
"\0\0\0\377\0\0\0\377\377\377\377\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377\377\377"
"\377\0\0\0\377\0\0\0\377\0\0\0\377\0\0\0\377\0\0\0\377\377\377\377\377"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377"
"\377\377\377\377\377\377\377\377\377\377\377\0\0\0\377\0\0\0\377\0\0"
"\0\377\0\0\0\377\0\0\0\377\377\377\377\377\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377\377\377\377\0\0\0\377\0\0\0\377\0"
"\0\0\377\0\0\0\377\0\0\0\377\0\0\0\377\0\0\0\377\0\0\0\377\377\377\377"
"\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\377\377\377\377\0\0\0\377\0\0\0\377\0\0\0\377\0\0\0\377\0\0\0\377\0"
"\0\0\377\377\377\377\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377\377\377\377\377\0\0\0\377\0\0"
"\0\377\0\0\0\377\377\377\377\377\377\377\377\377\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377\377\377"
"\377\377\377\377\377\377\377\377\377\377\0\0\0\377\0\0\0\377\377\377"
"\377\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\377\377\377\377\377\377\377\377\377\377\377\377\377"
"\0\0\0\377\377\377\377\377\0\0\0\377\377\377\377\377\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377\377\377\377"
"\377\377\377\377\377\377\377\377\377\0\0\0\377\0\0\0\0\0\0\0\0\377\377"
"\377\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\377\377\377\377\377\377\377\377\377\377\377\377\377\0\0\0"
"\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377\377\377\377\377\377\377\377\377\377"
"\377\377\377\0\0\0\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377\377\377\377\377"
"\377\377\377\377\377\377\377\377\0\0\0\377\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\377\377\377\377\377\377\377\377\377\377\377\377\377\0\0\0\377\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377\377\377\377\377\377\377\377\377\0\0"
"\0\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377\0\0\0\0\0\0\0\377\0\0\0"
"\377\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\377\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"
"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0"};
G_DEFINE_TYPE (GtkColorSelection, gtk_color_selection, GTK_TYPE_VBOX)
static void
gtk_color_selection_class_init (GtkColorSelectionClass *klass)
{
GObjectClass *gobject_class;
GtkWidgetClass *widget_class;
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = gtk_color_selection_finalize;
gobject_class->set_property = gtk_color_selection_set_property;
gobject_class->get_property = gtk_color_selection_get_property;
widget_class = GTK_WIDGET_CLASS (klass);
widget_class->destroy = gtk_color_selection_destroy;
widget_class->realize = gtk_color_selection_realize;
widget_class->unrealize = gtk_color_selection_unrealize;
widget_class->show_all = gtk_color_selection_show_all;
widget_class->grab_broken_event = gtk_color_selection_grab_broken;
g_object_class_install_property (gobject_class,
PROP_HAS_OPACITY_CONTROL,
g_param_spec_boolean ("has-opacity-control",
P_("Has Opacity Control"),
P_("Whether the color selector should allow setting opacity"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_HAS_PALETTE,
g_param_spec_boolean ("has-palette",
P_("Has palette"),
P_("Whether a palette should be used"),
FALSE,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_CURRENT_COLOR,
g_param_spec_boxed ("current-color",
P_("Current Color"),
P_("The current color"),
GDK_TYPE_COLOR,
GTK_PARAM_READWRITE));
g_object_class_install_property (gobject_class,
PROP_CURRENT_ALPHA,
g_param_spec_uint ("current-alpha",
P_("Current Alpha"),
P_("The current opacity value (0 fully transparent, 65535 fully opaque)"),
0, 65535, 65535,
GTK_PARAM_READWRITE));
color_selection_signals[COLOR_CHANGED] =
g_signal_new (I_("color-changed"),
G_OBJECT_CLASS_TYPE (gobject_class),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GtkColorSelectionClass, color_changed),
NULL, NULL,
_gtk_marshal_VOID__VOID,
G_TYPE_NONE, 0);
gtk_settings_install_property (g_param_spec_string ("gtk-color-palette",
P_("Custom palette"),
P_("Palette to use in the color selector"),
default_colors,
GTK_PARAM_READWRITE));
g_type_class_add_private (gobject_class, sizeof (GtkColorSelectionPrivate));
}
static void
gtk_color_selection_init (GtkColorSelection *colorsel)
{
GtkWidget *top_hbox;
GtkWidget *top_right_vbox;
GtkWidget *table, *label, *hbox, *frame, *vbox, *button;
GtkAdjustment *adjust;
GtkWidget *picker_image;
gint i, j;
GtkColorSelectionPrivate *priv;
AtkObject *atk_obj;
GList *focus_chain = NULL;
gtk_widget_push_composite_child ();
priv = colorsel->private_data = G_TYPE_INSTANCE_GET_PRIVATE (colorsel, GTK_TYPE_COLOR_SELECTION, GtkColorSelectionPrivate);
priv->changing = FALSE;
priv->default_set = FALSE;
priv->default_alpha_set = FALSE;
top_hbox = gtk_hbox_new (FALSE, 12);
gtk_box_pack_start (GTK_BOX (colorsel), top_hbox, FALSE, FALSE, 0);
vbox = gtk_vbox_new (FALSE, 6);
priv->triangle_colorsel = gtk_hsv_new ();
g_signal_connect (priv->triangle_colorsel, "changed",
G_CALLBACK (hsv_changed), colorsel);
gtk_hsv_set_metrics (GTK_HSV (priv->triangle_colorsel), 174, 15);
gtk_box_pack_start (GTK_BOX (top_hbox), vbox, FALSE, FALSE, 0);
gtk_box_pack_start (GTK_BOX (vbox), priv->triangle_colorsel, FALSE, FALSE, 0);
gtk_widget_set_tooltip_text (priv->triangle_colorsel,
_("Select the color you want from the outer ring. Select the darkness or lightness of that color using the inner triangle."));
hbox = gtk_hbox_new (FALSE, 6);
gtk_box_pack_end (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
frame = gtk_frame_new (NULL);
gtk_widget_set_size_request (frame, -1, 30);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
color_sample_new (colorsel);
gtk_container_add (GTK_CONTAINER (frame), priv->sample_area);
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
button = gtk_button_new ();
gtk_widget_set_events (button, GDK_POINTER_MOTION_MASK | GDK_POINTER_MOTION_HINT_MASK);
g_object_set_data (G_OBJECT (button), I_("COLORSEL"), colorsel);
g_signal_connect (button, "clicked",
G_CALLBACK (get_screen_color), NULL);
picker_image = gtk_image_new_from_stock (GTK_STOCK_COLOR_PICKER, GTK_ICON_SIZE_BUTTON);
gtk_container_add (GTK_CONTAINER (button), picker_image);
gtk_widget_show (GTK_WIDGET (picker_image));
gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_set_tooltip_text (button,
_("Click the eyedropper, then click a color anywhere on your screen to select that color."));
top_right_vbox = gtk_vbox_new (FALSE, 6);
gtk_box_pack_start (GTK_BOX (top_hbox), top_right_vbox, FALSE, FALSE, 0);
table = gtk_table_new (8, 6, FALSE);
gtk_box_pack_start (GTK_BOX (top_right_vbox), table, FALSE, FALSE, 0);
gtk_table_set_row_spacings (GTK_TABLE (table), 6);
gtk_table_set_col_spacings (GTK_TABLE (table), 12);
make_label_spinbutton (colorsel, &priv->hue_spinbutton, _("_Hue:"), table, 0, 0, COLORSEL_HUE,
_("Position on the color wheel."));
gtk_spin_button_set_wrap (GTK_SPIN_BUTTON (priv->hue_spinbutton), TRUE);
make_label_spinbutton (colorsel, &priv->sat_spinbutton, _("_Saturation:"), table, 0, 1, COLORSEL_SATURATION,
_("Intensity of the color."));
make_label_spinbutton (colorsel, &priv->val_spinbutton, _("_Value:"), table, 0, 2, COLORSEL_VALUE,
_("Brightness of the color."));
make_label_spinbutton (colorsel, &priv->red_spinbutton, _("_Red:"), table, 6, 0, COLORSEL_RED,
_("Amount of red light in the color."));
make_label_spinbutton (colorsel, &priv->green_spinbutton, _("_Green:"), table, 6, 1, COLORSEL_GREEN,
_("Amount of green light in the color."));
make_label_spinbutton (colorsel, &priv->blue_spinbutton, _("_Blue:"), table, 6, 2, COLORSEL_BLUE,
_("Amount of blue light in the color."));
gtk_table_attach_defaults (GTK_TABLE (table), gtk_hseparator_new (), 0, 8, 3, 4);
priv->opacity_label = gtk_label_new_with_mnemonic (_("Op_acity:"));
gtk_misc_set_alignment (GTK_MISC (priv->opacity_label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), priv->opacity_label, 0, 1, 4, 5);
adjust = gtk_adjustment_new (0.0, 0.0, 255.0, 1.0, 1.0, 0.0);
g_object_set_data (G_OBJECT (adjust), I_("COLORSEL"), colorsel);
priv->opacity_slider = gtk_hscale_new (adjust);
gtk_widget_set_tooltip_text (priv->opacity_slider,
_("Transparency of the color."));
gtk_label_set_mnemonic_widget (GTK_LABEL (priv->opacity_label),
priv->opacity_slider);
gtk_scale_set_draw_value (GTK_SCALE (priv->opacity_slider), FALSE);
g_signal_connect (adjust, "value-changed",
G_CALLBACK (adjustment_changed),
GINT_TO_POINTER (COLORSEL_OPACITY));
gtk_table_attach_defaults (GTK_TABLE (table), priv->opacity_slider, 1, 7, 4, 5);
priv->opacity_entry = gtk_entry_new ();
gtk_widget_set_tooltip_text (priv->opacity_entry,
_("Transparency of the color."));
gtk_widget_set_size_request (priv->opacity_entry, 40, -1);
g_signal_connect (priv->opacity_entry, "activate",
G_CALLBACK (opacity_entry_changed), colorsel);
gtk_table_attach_defaults (GTK_TABLE (table), priv->opacity_entry, 7, 8, 4, 5);
label = gtk_label_new_with_mnemonic (_("Color _name:"));
gtk_table_attach_defaults (GTK_TABLE (table), label, 0, 1, 5, 6);
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
priv->hex_entry = gtk_entry_new ();
gtk_label_set_mnemonic_widget (GTK_LABEL (label), priv->hex_entry);
g_signal_connect (priv->hex_entry, "activate",
G_CALLBACK (hex_changed), colorsel);
g_signal_connect (priv->hex_entry, "focus-out-event",
G_CALLBACK (hex_focus_out), colorsel);
gtk_widget_set_tooltip_text (priv->hex_entry,
_("You can enter an HTML-style hexadecimal color value, or simply a color name such as 'orange' in this entry."));
gtk_entry_set_width_chars (GTK_ENTRY (priv->hex_entry), 7);
gtk_table_attach_defaults (GTK_TABLE (table), priv->hex_entry, 1, 5, 5, 6);
focus_chain = g_list_append (focus_chain, priv->hue_spinbutton);
focus_chain = g_list_append (focus_chain, priv->sat_spinbutton);
focus_chain = g_list_append (focus_chain, priv->val_spinbutton);
focus_chain = g_list_append (focus_chain, priv->red_spinbutton);
focus_chain = g_list_append (focus_chain, priv->green_spinbutton);
focus_chain = g_list_append (focus_chain, priv->blue_spinbutton);
focus_chain = g_list_append (focus_chain, priv->opacity_slider);
focus_chain = g_list_append (focus_chain, priv->opacity_entry);
focus_chain = g_list_append (focus_chain, priv->hex_entry);
gtk_container_set_focus_chain (GTK_CONTAINER (table), focus_chain);
g_list_free (focus_chain);
/* Set up the palette */
table = gtk_table_new (GTK_CUSTOM_PALETTE_HEIGHT, GTK_CUSTOM_PALETTE_WIDTH, TRUE);
gtk_table_set_row_spacings (GTK_TABLE (table), 1);
gtk_table_set_col_spacings (GTK_TABLE (table), 1);
for (i = 0; i < GTK_CUSTOM_PALETTE_WIDTH; i++)
{
for (j = 0; j < GTK_CUSTOM_PALETTE_HEIGHT; j++)
{
make_palette_frame (colorsel, table, i, j);
}
}
set_selected_palette (colorsel, 0, 0);
priv->palette_frame = gtk_vbox_new (FALSE, 6);
label = gtk_label_new_with_mnemonic (_("_Palette:"));
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_box_pack_start (GTK_BOX (priv->palette_frame), label, FALSE, FALSE, 0);
gtk_label_set_mnemonic_widget (GTK_LABEL (label),
priv->custom_palette[0][0]);
gtk_box_pack_end (GTK_BOX (top_right_vbox), priv->palette_frame, FALSE, FALSE, 0);
gtk_box_pack_start (GTK_BOX (priv->palette_frame), table, FALSE, FALSE, 0);
gtk_widget_show_all (top_hbox);
/* hide unused stuff */
if (priv->has_opacity == FALSE)
{
gtk_widget_hide (priv->opacity_label);
gtk_widget_hide (priv->opacity_slider);
gtk_widget_hide (priv->opacity_entry);
}
if (priv->has_palette == FALSE)
{
gtk_widget_hide (priv->palette_frame);
}
atk_obj = gtk_widget_get_accessible (priv->triangle_colorsel);
if (GTK_IS_ACCESSIBLE (atk_obj))
{
atk_object_set_name (atk_obj, _("Color Wheel"));
atk_object_set_role (gtk_widget_get_accessible (GTK_WIDGET (colorsel)), ATK_ROLE_COLOR_CHOOSER);
make_all_relations (atk_obj, priv);
}
gtk_widget_pop_composite_child ();
}
/* GObject methods */
static void
gtk_color_selection_finalize (GObject *object)
{
G_OBJECT_CLASS (gtk_color_selection_parent_class)->finalize (object);
}
static void
gtk_color_selection_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkColorSelection *colorsel = GTK_COLOR_SELECTION (object);
switch (prop_id)
{
case PROP_HAS_OPACITY_CONTROL:
gtk_color_selection_set_has_opacity_control (colorsel,
g_value_get_boolean (value));
break;
case PROP_HAS_PALETTE:
gtk_color_selection_set_has_palette (colorsel,
g_value_get_boolean (value));
break;
case PROP_CURRENT_COLOR:
gtk_color_selection_set_current_color (colorsel, g_value_get_boxed (value));
break;
case PROP_CURRENT_ALPHA:
gtk_color_selection_set_current_alpha (colorsel, g_value_get_uint (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_color_selection_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkColorSelection *colorsel = GTK_COLOR_SELECTION (object);
GdkColor color;
switch (prop_id)
{
case PROP_HAS_OPACITY_CONTROL:
g_value_set_boolean (value, gtk_color_selection_get_has_opacity_control (colorsel));
break;
case PROP_HAS_PALETTE:
g_value_set_boolean (value, gtk_color_selection_get_has_palette (colorsel));
break;
case PROP_CURRENT_COLOR:
gtk_color_selection_get_current_color (colorsel, &color);
g_value_set_boxed (value, &color);
break;
case PROP_CURRENT_ALPHA:
g_value_set_uint (value, gtk_color_selection_get_current_alpha (colorsel));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
/* GtkWidget methods */
static void
gtk_color_selection_destroy (GtkWidget *widget)
{
GtkColorSelection *cselection = GTK_COLOR_SELECTION (widget);
GtkColorSelectionPrivate *priv = cselection->private_data;
if (priv->dropper_grab_widget)
{
gtk_widget_destroy (priv->dropper_grab_widget);
priv->dropper_grab_widget = NULL;
}
GTK_WIDGET_CLASS (gtk_color_selection_parent_class)->destroy (widget);
}
static void
gtk_color_selection_realize (GtkWidget *widget)
{
GtkColorSelection *colorsel = GTK_COLOR_SELECTION (widget);
GtkColorSelectionPrivate *priv = colorsel->private_data;
GtkSettings *settings = gtk_widget_get_settings (widget);
priv->settings_connection = g_signal_connect (settings,
"notify::gtk-color-palette",
G_CALLBACK (palette_change_notify_instance),
widget);
update_palette (colorsel);
GTK_WIDGET_CLASS (gtk_color_selection_parent_class)->realize (widget);
}
static void
gtk_color_selection_unrealize (GtkWidget *widget)
{
GtkColorSelection *colorsel = GTK_COLOR_SELECTION (widget);
GtkColorSelectionPrivate *priv = colorsel->private_data;
GtkSettings *settings = gtk_widget_get_settings (widget);
g_signal_handler_disconnect (settings, priv->settings_connection);
GTK_WIDGET_CLASS (gtk_color_selection_parent_class)->unrealize (widget);
}
/* We override show-all since we have internal widgets that
* shouldn't be shown when you call show_all(), like the
* palette and opacity sliders.
*/
static void
gtk_color_selection_show_all (GtkWidget *widget)
{
gtk_widget_show (widget);
}
static gboolean
gtk_color_selection_grab_broken (GtkWidget *widget,
GdkEventGrabBroken *event)
{
shutdown_eyedropper (widget);
return TRUE;
}
/*
*
* The Sample Color
*
*/
static void color_sample_draw_sample (GtkColorSelection *colorsel,
int which,
cairo_t * cr);
static void color_sample_update_samples (GtkColorSelection *colorsel);
static void
set_color_internal (GtkColorSelection *colorsel,
gdouble *color)
{
GtkColorSelectionPrivate *priv;
gint i;
priv = colorsel->private_data;
priv->changing = TRUE;
priv->color[COLORSEL_RED] = color[0];
priv->color[COLORSEL_GREEN] = color[1];
priv->color[COLORSEL_BLUE] = color[2];
priv->color[COLORSEL_OPACITY] = color[3];
gtk_rgb_to_hsv (priv->color[COLORSEL_RED],
priv->color[COLORSEL_GREEN],
priv->color[COLORSEL_BLUE],
&priv->color[COLORSEL_HUE],
&priv->color[COLORSEL_SATURATION],
&priv->color[COLORSEL_VALUE]);
if (priv->default_set == FALSE)
{
for (i = 0; i < COLORSEL_NUM_CHANNELS; i++)
priv->old_color[i] = priv->color[i];
}
priv->default_set = TRUE;
priv->default_alpha_set = TRUE;
update_color (colorsel);
}
static void
set_color_icon (GdkDragContext *context,
gdouble *colors)
{
GdkPixbuf *pixbuf;
guint32 pixel;
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE,
8, 48, 32);
pixel = (((UNSCALE (colors[COLORSEL_RED]) & 0xff00) << 16) |
((UNSCALE (colors[COLORSEL_GREEN]) & 0xff00) << 8) |
((UNSCALE (colors[COLORSEL_BLUE]) & 0xff00)));
gdk_pixbuf_fill (pixbuf, pixel);
gtk_drag_set_icon_pixbuf (context, pixbuf, -2, -2);
g_object_unref (pixbuf);
}
static void
color_sample_drag_begin (GtkWidget *widget,
GdkDragContext *context,
gpointer data)
{
GtkColorSelection *colorsel = data;
GtkColorSelectionPrivate *priv;
gdouble *colsrc;
priv = colorsel->private_data;
if (widget == priv->old_sample)
colsrc = priv->old_color;
else
colsrc = priv->color;
set_color_icon (context, colsrc);
}
static void
color_sample_drag_end (GtkWidget *widget,
GdkDragContext *context,
gpointer data)
{
g_object_set_data (G_OBJECT (widget), I_("gtk-color-selection-drag-window"), NULL);
}
static void
color_sample_drop_handle (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time,
gpointer data)
{
GtkColorSelection *colorsel = data;
GtkColorSelectionPrivate *priv;
guint16 *vals;
gdouble color[4];
priv = colorsel->private_data;
/* This is currently a guint16 array of the format:
* R
* G
* B
* opacity
*/
if (selection_data->length < 0)
return;
/* We accept drops with the wrong format, since the KDE color
* chooser incorrectly drops application/x-color with format 8.
*/
if (selection_data->length != 8)
{
g_warning ("Received invalid color data\n");
return;
}
vals = (guint16 *)selection_data->data;
if (widget == priv->cur_sample)
{
color[0] = (gdouble)vals[0] / 0xffff;
color[1] = (gdouble)vals[1] / 0xffff;
color[2] = (gdouble)vals[2] / 0xffff;
color[3] = (gdouble)vals[3] / 0xffff;
set_color_internal (colorsel, color);
}
}
static void
color_sample_drag_handle (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time,
gpointer data)
{
GtkColorSelection *colorsel = data;
GtkColorSelectionPrivate *priv;
guint16 vals[4];
gdouble *colsrc;
priv = colorsel->private_data;
if (widget == priv->old_sample)
colsrc = priv->old_color;
else
colsrc = priv->color;
vals[0] = colsrc[COLORSEL_RED] * 0xffff;
vals[1] = colsrc[COLORSEL_GREEN] * 0xffff;
vals[2] = colsrc[COLORSEL_BLUE] * 0xffff;
vals[3] = priv->has_opacity ? colsrc[COLORSEL_OPACITY] * 0xffff : 0xffff;
gtk_selection_data_set (selection_data,
gdk_atom_intern_static_string ("application/x-color"),
16, (guchar *)vals, 8);
}
/* which = 0 means draw old sample, which = 1 means draw new */
static void
color_sample_draw_sample (GtkColorSelection *colorsel,
int which,
cairo_t *cr)
{
GtkWidget *da;
gint x, y, goff;
GtkColorSelectionPrivate *priv;
int width, height;
g_return_if_fail (colorsel != NULL);
priv = colorsel->private_data;
g_return_if_fail (priv->sample_area != NULL);
if (!gtk_widget_is_drawable (priv->sample_area))
return;
if (which == 0)
{
da = priv->old_sample;
goff = 0;
}
else
{
GtkAllocation old_sample_allocation;
da = priv->cur_sample;
gtk_widget_get_allocation (priv->old_sample, &old_sample_allocation);
goff = old_sample_allocation.width % 32;
}
/* Below needs tweaking for non-power-of-two */
width = gtk_widget_get_allocated_width (da);
height = gtk_widget_get_allocated_height (da);
if (priv->has_opacity)
{
/* Draw checks in background */
cairo_set_source_rgb (cr, 0.5, 0.5, 0.5);
cairo_rectangle (cr, 0, 0, width, height);
cairo_fill (cr);
cairo_set_source_rgb (cr, 0.75, 0.75, 0.75);
for (x = goff & -CHECK_SIZE; x < goff + width; x += CHECK_SIZE)
for (y = 0; y < height; y += CHECK_SIZE)
if ((x / CHECK_SIZE + y / CHECK_SIZE) % 2 == 0)
cairo_rectangle (cr, x - goff, y, CHECK_SIZE, CHECK_SIZE);
cairo_fill (cr);
}
if (which == 0)
{
cairo_set_source_rgba (cr,
priv->old_color[COLORSEL_RED],
priv->old_color[COLORSEL_GREEN],
priv->old_color[COLORSEL_BLUE],
priv->has_opacity ?
priv->old_color[COLORSEL_OPACITY] : 1.0);
}
else
{
cairo_set_source_rgba (cr,
priv->color[COLORSEL_RED],
priv->color[COLORSEL_GREEN],
priv->color[COLORSEL_BLUE],
priv->has_opacity ?
priv->color[COLORSEL_OPACITY] : 1.0);
}
cairo_rectangle (cr, 0, 0, width, height);
cairo_fill (cr);
}
static void
color_sample_update_samples (GtkColorSelection *colorsel)
{
GtkColorSelectionPrivate *priv = colorsel->private_data;
gtk_widget_queue_draw (priv->old_sample);
gtk_widget_queue_draw (priv->cur_sample);
}
static gboolean
color_old_sample_draw (GtkWidget *da,
cairo_t *cr,
GtkColorSelection *colorsel)
{
color_sample_draw_sample (colorsel, 0, cr);
return FALSE;
}
static gboolean
color_cur_sample_draw (GtkWidget *da,
cairo_t *cr,
GtkColorSelection *colorsel)
{
color_sample_draw_sample (colorsel, 1, cr);
return FALSE;
}
static void
color_sample_setup_dnd (GtkColorSelection *colorsel, GtkWidget *sample)
{
static const GtkTargetEntry targets[] = {
{ "application/x-color", 0 }
};
GtkColorSelectionPrivate *priv;
priv = colorsel->private_data;
gtk_drag_source_set (sample,
GDK_BUTTON1_MASK | GDK_BUTTON3_MASK,
targets, 1,
GDK_ACTION_COPY | GDK_ACTION_MOVE);
g_signal_connect (sample, "drag-begin",
G_CALLBACK (color_sample_drag_begin),
colorsel);
if (sample == priv->cur_sample)
{
gtk_drag_dest_set (sample,
GTK_DEST_DEFAULT_HIGHLIGHT |
GTK_DEST_DEFAULT_MOTION |
GTK_DEST_DEFAULT_DROP,
targets, 1,
GDK_ACTION_COPY);
g_signal_connect (sample, "drag-end",
G_CALLBACK (color_sample_drag_end),
colorsel);
}
g_signal_connect (sample, "drag-data-get",
G_CALLBACK (color_sample_drag_handle),
colorsel);
g_signal_connect (sample, "drag-data-received",
G_CALLBACK (color_sample_drop_handle),
colorsel);
}
static void
update_tooltips (GtkColorSelection *colorsel)
{
GtkColorSelectionPrivate *priv;
priv = colorsel->private_data;
if (priv->has_palette == TRUE)
{
gtk_widget_set_tooltip_text (priv->old_sample,
_("The previously-selected color, for comparison to the color you're selecting now. You can drag this color to a palette entry, or select this color as current by dragging it to the other color swatch alongside."));
gtk_widget_set_tooltip_text (priv->cur_sample,
_("The color you've chosen. You can drag this color to a palette entry to save it for use in the future."));
}
else
{
gtk_widget_set_tooltip_text (priv->old_sample,
_("The previously-selected color, for comparison to the color you're selecting now."));
gtk_widget_set_tooltip_text (priv->cur_sample,
_("The color you've chosen."));
}
}
static void
color_sample_new (GtkColorSelection *colorsel)
{
GtkColorSelectionPrivate *priv;
priv = colorsel->private_data;
priv->sample_area = gtk_hbox_new (FALSE, 0);
priv->old_sample = gtk_drawing_area_new ();
priv->cur_sample = gtk_drawing_area_new ();
gtk_box_pack_start (GTK_BOX (priv->sample_area), priv->old_sample,
TRUE, TRUE, 0);
gtk_box_pack_start (GTK_BOX (priv->sample_area), priv->cur_sample,
TRUE, TRUE, 0);
g_signal_connect (priv->old_sample, "draw",
G_CALLBACK (color_old_sample_draw),
colorsel);
g_signal_connect (priv->cur_sample, "draw",
G_CALLBACK (color_cur_sample_draw),
colorsel);
color_sample_setup_dnd (colorsel, priv->old_sample);
color_sample_setup_dnd (colorsel, priv->cur_sample);
update_tooltips (colorsel);
gtk_widget_show_all (priv->sample_area);
}
/*
*
* The palette area code
*
*/
static void
palette_get_color (GtkWidget *drawing_area, gdouble *color)
{
gdouble *color_val;
g_return_if_fail (color != NULL);
color_val = g_object_get_data (G_OBJECT (drawing_area), "color_val");
if (color_val == NULL)
{
/* Default to white for no good reason */
color[0] = 1.0;
color[1] = 1.0;
color[2] = 1.0;
color[3] = 1.0;
return;
}
color[0] = color_val[0];
color[1] = color_val[1];
color[2] = color_val[2];
color[3] = 1.0;
}
static gboolean
palette_draw (GtkWidget *drawing_area,
cairo_t *cr,
gpointer data)
{
gint focus_width;
gdk_cairo_set_source_color (cr, &gtk_widget_get_style (drawing_area)->bg[GTK_STATE_NORMAL]);
cairo_paint (cr);
if (gtk_widget_has_focus (drawing_area))
{
set_focus_line_attributes (drawing_area, cr, &focus_width);
cairo_rectangle (cr,
focus_width / 2., focus_width / 2.,
gtk_widget_get_allocated_width (drawing_area) - focus_width,
gtk_widget_get_allocated_height (drawing_area) - focus_width);
cairo_stroke (cr);
}
return FALSE;
}
static void
set_focus_line_attributes (GtkWidget *drawing_area,
cairo_t *cr,
gint *focus_width)
{
gdouble color[4];
gint8 *dash_list;
gtk_widget_style_get (drawing_area,
"focus-line-width", focus_width,
"focus-line-pattern", (gchar *)&dash_list,
NULL);
palette_get_color (drawing_area, color);
if (INTENSITY (color[0], color[1], color[2]) > 0.5)
cairo_set_source_rgb (cr, 0., 0., 0.);
else
cairo_set_source_rgb (cr, 1., 1., 1.);
cairo_set_line_width (cr, *focus_width);
if (dash_list[0])
{
gint n_dashes = strlen ((gchar *)dash_list);
gdouble *dashes = g_new (gdouble, n_dashes);
gdouble total_length = 0;
gdouble dash_offset;
gint i;
for (i = 0; i < n_dashes; i++)
{
dashes[i] = dash_list[i];
total_length += dash_list[i];
}
/* The dash offset here aligns the pattern to integer pixels
* by starting the dash at the right side of the left border
* Negative dash offsets in cairo don't work
* (https://bugs.freedesktop.org/show_bug.cgi?id=2729)
*/
dash_offset = - *focus_width / 2.;
while (dash_offset < 0)
dash_offset += total_length;
cairo_set_dash (cr, dashes, n_dashes, dash_offset);
g_free (dashes);
}
g_free (dash_list);
}
static void
palette_drag_begin (GtkWidget *widget,
GdkDragContext *context,
gpointer data)
{
gdouble colors[4];
palette_get_color (widget, colors);
set_color_icon (context, colors);
}
static void
palette_drag_handle (GtkWidget *widget,
GdkDragContext *context,
GtkSelectionData *selection_data,
guint info,
guint time,
gpointer data)
{
guint16 vals[4];
gdouble colsrc[4];
palette_get_color (widget, colsrc);
vals[0] = colsrc[COLORSEL_RED] * 0xffff;
vals[1] = colsrc[COLORSEL_GREEN] * 0xffff;
vals[2] = colsrc[COLORSEL_BLUE] * 0xffff;
vals[3] = 0xffff;
gtk_selection_data_set (selection_data,
gdk_atom_intern_static_string ("application/x-color"),
16, (guchar *)vals, 8);
}
static void
palette_drag_end (GtkWidget *widget,
GdkDragContext *context,
gpointer data)
{
g_object_set_data (G_OBJECT (widget), I_("gtk-color-selection-drag-window"), NULL);
}
static GdkColor *
get_current_colors (GtkColorSelection *colorsel)
{
GtkSettings *settings;
GdkColor *colors = NULL;
gint n_colors = 0;
gchar *palette;
settings = gtk_widget_get_settings (GTK_WIDGET (colorsel));
g_object_get (settings,
"gtk-color-palette", &palette,
NULL);
if (!gtk_color_selection_palette_from_string (palette, &colors, &n_colors))
{
gtk_color_selection_palette_from_string (default_colors, &colors, &n_colors);
}
else
{
/* If there are less colors provided than the number of slots in the
* color selection, we fill in the rest from the defaults.
*/
if (n_colors < (GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT))
{
GdkColor *tmp_colors = colors;
gint tmp_n_colors = n_colors;
gtk_color_selection_palette_from_string (default_colors, &colors, &n_colors);
memcpy (colors, tmp_colors, sizeof (GdkColor) * tmp_n_colors);
g_free (tmp_colors);
}
}
g_assert (n_colors >= GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT);
g_free (palette);
return colors;
}
/* Changes the model color */
static void
palette_change_color (GtkWidget *drawing_area,
GtkColorSelection *colorsel,
gdouble *color)
{
gint x, y;
GtkColorSelectionPrivate *priv;
GdkColor gdk_color;
GdkColor *current_colors;
GdkScreen *screen;
g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
g_return_if_fail (GTK_IS_DRAWING_AREA (drawing_area));
priv = colorsel->private_data;
gdk_color.red = UNSCALE (color[0]);
gdk_color.green = UNSCALE (color[1]);
gdk_color.blue = UNSCALE (color[2]);
gdk_color.pixel = 0;
x = 0;
y = 0; /* Quiet GCC */
while (x < GTK_CUSTOM_PALETTE_WIDTH)
{
y = 0;
while (y < GTK_CUSTOM_PALETTE_HEIGHT)
{
if (priv->custom_palette[x][y] == drawing_area)
goto out;
++y;
}
++x;
}
out:
g_assert (x < GTK_CUSTOM_PALETTE_WIDTH || y < GTK_CUSTOM_PALETTE_HEIGHT);
current_colors = get_current_colors (colorsel);
current_colors[y * GTK_CUSTOM_PALETTE_WIDTH + x] = gdk_color;
screen = gtk_widget_get_screen (GTK_WIDGET (colorsel));
if (change_palette_hook != default_change_palette_func)
(* change_palette_hook) (screen, current_colors,
GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT);
else if (noscreen_change_palette_hook != default_noscreen_change_palette_func)
{
if (screen != gdk_screen_get_default ())
g_warning ("gtk_color_selection_set_change_palette_hook used by widget is not on the default screen.");
(* noscreen_change_palette_hook) (current_colors,
GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT);
}
else
(* change_palette_hook) (screen, current_colors,
GTK_CUSTOM_PALETTE_WIDTH * GTK_CUSTOM_PALETTE_HEIGHT);
g_free (current_colors);
}
/* Changes the view color */
static void
palette_set_color (GtkWidget *drawing_area,
GtkColorSelection *colorsel,
gdouble *color)
{
gdouble *new_color = g_new (double, 4);
GdkColor gdk_color;
gdk_color.red = UNSCALE (color[0]);
gdk_color.green = UNSCALE (color[1]);
gdk_color.blue = UNSCALE (color[2]);
gtk_widget_modify_bg (drawing_area, GTK_STATE_NORMAL, &gdk_color);
if (GPOINTER_TO_INT (g_object_get_data (G_OBJECT (drawing_area), "color_set")) == 0)
{
static const GtkTargetEntry targets[] = {
{ "application/x-color", 0 }
};
gtk_drag_source_set (drawing_area,
GDK_BUTTON1_MASK | GDK_BUTTON3_MASK,
targets, 1,
GDK_ACTION_COPY | GDK_ACTION_MOVE);
g_signal_connect (drawing_area, "drag-begin",
G_CALLBACK (palette_drag_begin),
colorsel);
g_signal_connect (drawing_area, "drag-data-get",
G_CALLBACK (palette_drag_handle),
colorsel);
g_object_set_data (G_OBJECT (drawing_area), I_("color_set"),
GINT_TO_POINTER (1));
}
new_color[0] = color[0];
new_color[1] = color[1];
new_color[2] = color[2];
new_color[3] = 1.0;
g_object_set_data_full (G_OBJECT (drawing_area), I_("color_val"), new_color, (GDestroyNotify)g_free);
}
static void
popup_position_func (GtkMenu *menu,
gint *x,
gint *y,
gboolean *push_in,
gpointer user_data)
{
GtkAllocation allocation;
GtkWidget *widget;
GtkRequisition req;
gint root_x, root_y;
GdkScreen *screen;
widget = GTK_WIDGET (user_data);
g_return_if_fail (gtk_widget_get_realized (widget));
gdk_window_get_origin (gtk_widget_get_window (widget),
&root_x, &root_y);
gtk_widget_get_preferred_size (GTK_WIDGET (menu),
&req, NULL);
gtk_widget_get_allocation (widget, &allocation);
/* Put corner of menu centered on color cell */
*x = root_x + allocation.width / 2;
*y = root_y + allocation.height / 2;
/* Ensure sanity */
screen = gtk_widget_get_screen (widget);
*x = CLAMP (*x, 0, MAX (0, gdk_screen_get_width (screen) - req.width));
*y = CLAMP (*y, 0, MAX (0, gdk_screen_get_height (screen) - req.height));
}
static void
save_color_selected (GtkWidget *menuitem,
gpointer data)
{
GtkColorSelection *colorsel;
GtkWidget *drawing_area;
GtkColorSelectionPrivate *priv;
drawing_area = GTK_WIDGET (data);
colorsel = GTK_COLOR_SELECTION (g_object_get_data (G_OBJECT (drawing_area),
"gtk-color-sel"));
priv = colorsel->private_data;
palette_change_color (drawing_area, colorsel, priv->color);
}
static void
do_popup (GtkColorSelection *colorsel,
GtkWidget *drawing_area,
guint32 timestamp)
{
GtkWidget *menu;
GtkWidget *mi;
g_object_set_data (G_OBJECT (drawing_area),
I_("gtk-color-sel"),
colorsel);
menu = gtk_menu_new ();
mi = gtk_menu_item_new_with_mnemonic (_("_Save color here"));
g_signal_connect (mi, "activate",
G_CALLBACK (save_color_selected),
drawing_area);
gtk_menu_shell_append (GTK_MENU_SHELL (menu), mi);
gtk_widget_show_all (mi);
gtk_menu_popup (GTK_MENU (menu), NULL, NULL,
popup_position_func, drawing_area,
3, timestamp);
}
static gboolean
palette_enter (GtkWidget *drawing_area,
GdkEventCrossing *event,
gpointer data)
{
g_object_set_data (G_OBJECT (drawing_area),
I_("gtk-colorsel-have-pointer"),
GUINT_TO_POINTER (TRUE));
return FALSE;
}
static gboolean
palette_leave (GtkWidget *drawing_area,
GdkEventCrossing *event,
gpointer data)
{
g_object_set_data (G_OBJECT (drawing_area),
I_("gtk-colorsel-have-pointer"),
NULL);
return FALSE;
}
static gboolean
palette_press (GtkWidget *drawing_area,
GdkEventButton *event,
gpointer data)
{
GtkColorSelection *colorsel = GTK_COLOR_SELECTION (data);
gtk_widget_grab_focus (drawing_area);
if (event->button == 3 &&
event->type == GDK_BUTTON_PRESS)
{
do_popup (colorsel, drawing_area, event->time);
return TRUE;
}
return FALSE;
}
static gboolean
palette_release (GtkWidget *drawing_area,
GdkEventButton *event,
gpointer data)
{
GtkColorSelection *colorsel = GTK_COLOR_SELECTION (data);
gtk_widget_grab_focus (drawing_area);
if (event->button == 1 &&
g_object_get_data (G_OBJECT (drawing_area),
"gtk-colorsel-have-pointer") != NULL)
{
if (GPOINTER_TO_INT (g_object_get_data (G_OBJECT (drawing_area), "color_set")) != 0)
{
gdouble color[4];
palette_get_color (drawing_area, color);
set_color_internal (colorsel, color);
}
}
return FALSE;
}
static void
palette_drop_handle (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *selection_data,
guint info,
guint time,
gpointer data)
{
GtkColorSelection *colorsel = GTK_COLOR_SELECTION (data);
guint16 *vals;
gdouble color[4];
if (selection_data->length < 0)
return;
/* We accept drops with the wrong format, since the KDE color
* chooser incorrectly drops application/x-color with format 8.
*/
if (selection_data->length != 8)
{
g_warning ("Received invalid color data\n");
return;
}
vals = (guint16 *)selection_data->data;
color[0] = (gdouble)vals[0] / 0xffff;
color[1] = (gdouble)vals[1] / 0xffff;
color[2] = (gdouble)vals[2] / 0xffff;
color[3] = (gdouble)vals[3] / 0xffff;
palette_change_color (widget, colorsel, color);
set_color_internal (colorsel, color);
}
static gint
palette_activate (GtkWidget *widget,
GdkEventKey *event,
gpointer data)
{
/* should have a drawing area subclass with an activate signal */
if ((event->keyval == GDK_KEY_space) ||
(event->keyval == GDK_KEY_Return) ||
(event->keyval == GDK_KEY_ISO_Enter) ||
(event->keyval == GDK_KEY_KP_Enter) ||
(event->keyval == GDK_KEY_KP_Space))
{
if (GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget), "color_set")) != 0)
{
gdouble color[4];
palette_get_color (widget, color);
set_color_internal (GTK_COLOR_SELECTION (data), color);
}
return TRUE;
}
return FALSE;
}
static gboolean
palette_popup (GtkWidget *widget,
gpointer data)
{
GtkColorSelection *colorsel = GTK_COLOR_SELECTION (data);
do_popup (colorsel, widget, GDK_CURRENT_TIME);
return TRUE;
}
static GtkWidget*
palette_new (GtkColorSelection *colorsel)
{
GtkWidget *retval;
GtkColorSelectionPrivate *priv;
static const GtkTargetEntry targets[] = {
{ "application/x-color", 0 }
};
priv = colorsel->private_data;
retval = gtk_drawing_area_new ();
gtk_widget_set_can_focus (retval, TRUE);
g_object_set_data (G_OBJECT (retval), I_("color_set"), GINT_TO_POINTER (0));
gtk_widget_set_events (retval, GDK_BUTTON_PRESS_MASK
| GDK_BUTTON_RELEASE_MASK
| GDK_EXPOSURE_MASK
| GDK_ENTER_NOTIFY_MASK
| GDK_LEAVE_NOTIFY_MASK);
g_signal_connect (retval, "draw",
G_CALLBACK (palette_draw), colorsel);
g_signal_connect (retval, "button-press-event",
G_CALLBACK (palette_press), colorsel);
g_signal_connect (retval, "button-release-event",
G_CALLBACK (palette_release), colorsel);
g_signal_connect (retval, "enter-notify-event",
G_CALLBACK (palette_enter), colorsel);
g_signal_connect (retval, "leave-notify-event",
G_CALLBACK (palette_leave), colorsel);
g_signal_connect (retval, "key-press-event",
G_CALLBACK (palette_activate), colorsel);
g_signal_connect (retval, "popup-menu",
G_CALLBACK (palette_popup), colorsel);
gtk_drag_dest_set (retval,
GTK_DEST_DEFAULT_HIGHLIGHT |
GTK_DEST_DEFAULT_MOTION |
GTK_DEST_DEFAULT_DROP,
targets, 1,
GDK_ACTION_COPY);
g_signal_connect (retval, "drag-end",
G_CALLBACK (palette_drag_end), NULL);
g_signal_connect (retval, "drag-data-received",
G_CALLBACK (palette_drop_handle), colorsel);
gtk_widget_set_tooltip_text (retval,
_("Click this palette entry to make it the current color. To change this entry, drag a color swatch here or right-click it and select \"Save color here.\""));
return retval;
}
/*
*
* The actual GtkColorSelection widget
*
*/
static GdkCursor *
make_picker_cursor (GdkScreen *screen)
{
GdkCursor *cursor;
cursor = gdk_cursor_new_from_name (gdk_screen_get_display (screen),
"color-picker");
if (!cursor)
{
GdkPixbuf *pixbuf;
pixbuf = gdk_pixbuf_new_from_data (dropper_bits,
GDK_COLORSPACE_RGB, TRUE, 8,
DROPPER_WIDTH, DROPPER_HEIGHT,
DROPPER_STRIDE,
NULL, NULL);
cursor = gdk_cursor_new_from_pixbuf (gdk_screen_get_display (screen),
pixbuf,
DROPPER_X_HOT, DROPPER_Y_HOT);
g_object_unref (pixbuf);
}
return cursor;
}
static void
grab_color_at_pointer (GdkScreen *screen,
GdkDevice *device,
gint x_root,
gint y_root,
gpointer data)
{
GdkPixbuf *pixbuf;
guchar *pixels;
GtkColorSelection *colorsel = data;
GtkColorSelectionPrivate *priv;
GdkColor color;
GdkWindow *root_window = gdk_screen_get_root_window (screen);
priv = colorsel->private_data;
pixbuf = gdk_pixbuf_get_from_window (root_window,
x_root, y_root,
1, 1);
if (!pixbuf)
{
gint x, y;
GdkDisplay *display = gdk_screen_get_display (screen);
GdkWindow *window = gdk_display_get_window_at_device_position (display, device, &x, &y);
if (!window)
return;
pixbuf = gdk_pixbuf_get_from_window (window,
x, y,
1, 1);
if (!pixbuf)
return;
}
pixels = gdk_pixbuf_get_pixels (pixbuf);
color.red = pixels[0] * 0x101;
color.green = pixels[1] * 0x101;
color.blue = pixels[2] * 0x101;
g_object_unref (pixbuf);
priv->color[COLORSEL_RED] = SCALE (color.red);
priv->color[COLORSEL_GREEN] = SCALE (color.green);
priv->color[COLORSEL_BLUE] = SCALE (color.blue);
gtk_rgb_to_hsv (priv->color[COLORSEL_RED],
priv->color[COLORSEL_GREEN],
priv->color[COLORSEL_BLUE],
&priv->color[COLORSEL_HUE],
&priv->color[COLORSEL_SATURATION],
&priv->color[COLORSEL_VALUE]);
update_color (colorsel);
}
static void
shutdown_eyedropper (GtkWidget *widget)
{
GtkColorSelection *colorsel;
GtkColorSelectionPrivate *priv;
colorsel = GTK_COLOR_SELECTION (widget);
priv = colorsel->private_data;
if (priv->has_grab)
{
gdk_device_ungrab (priv->keyboard_device, priv->grab_time);
gdk_device_ungrab (priv->pointer_device, priv->grab_time);
gtk_device_grab_remove (priv->dropper_grab_widget, priv->pointer_device);
priv->has_grab = FALSE;
priv->keyboard_device = NULL;
priv->pointer_device = NULL;
}
}
static void
mouse_motion (GtkWidget *invisible,
GdkEventMotion *event,
gpointer data)
{
grab_color_at_pointer (gdk_event_get_screen ((GdkEvent *) event),
gdk_event_get_device ((GdkEvent *) event),
event->x_root, event->y_root, data);
}
static gboolean
mouse_release (GtkWidget *invisible,
GdkEventButton *event,
gpointer data)
{
/* GtkColorSelection *colorsel = data; */
if (event->button != 1)
return FALSE;
grab_color_at_pointer (gdk_event_get_screen ((GdkEvent *) event),
gdk_event_get_device ((GdkEvent *) event),
event->x_root, event->y_root, data);
shutdown_eyedropper (GTK_WIDGET (data));
g_signal_handlers_disconnect_by_func (invisible,
mouse_motion,
data);
g_signal_handlers_disconnect_by_func (invisible,
mouse_release,
data);
return TRUE;
}
/* Helper Functions */
static gboolean
key_press (GtkWidget *invisible,
GdkEventKey *event,
gpointer data)
{
GdkDisplay *display = gtk_widget_get_display (invisible);
GdkScreen *screen = gdk_event_get_screen ((GdkEvent *) event);
GdkDevice *device, *pointer_device;
guint state = event->state & gtk_accelerator_get_default_mod_mask ();
gint x, y;
gint dx, dy;
device = gdk_event_get_device ((GdkEvent * ) event);
pointer_device = gdk_device_get_associated_device (device);
gdk_display_get_device_state (display, pointer_device, NULL, &x, &y, NULL);
dx = 0;
dy = 0;
switch (event->keyval)
{
case GDK_KEY_space:
case GDK_KEY_Return:
case GDK_KEY_ISO_Enter:
case GDK_KEY_KP_Enter:
case GDK_KEY_KP_Space:
grab_color_at_pointer (screen, pointer_device, x, y, data);
/* fall through */
case GDK_KEY_Escape:
shutdown_eyedropper (data);
g_signal_handlers_disconnect_by_func (invisible,
mouse_press,
data);
g_signal_handlers_disconnect_by_func (invisible,
key_press,
data);
return TRUE;
#if defined GDK_WINDOWING_X11 || defined GDK_WINDOWING_WIN32
case GDK_KEY_Up:
case GDK_KEY_KP_Up:
dy = state == GDK_MOD1_MASK ? -BIG_STEP : -1;
break;
case GDK_KEY_Down:
case GDK_KEY_KP_Down:
dy = state == GDK_MOD1_MASK ? BIG_STEP : 1;
break;
case GDK_KEY_Left:
case GDK_KEY_KP_Left:
dx = state == GDK_MOD1_MASK ? -BIG_STEP : -1;
break;
case GDK_KEY_Right:
case GDK_KEY_KP_Right:
dx = state == GDK_MOD1_MASK ? BIG_STEP : 1;
break;
#endif
default:
return FALSE;
}
gdk_display_warp_device (display, pointer_device, screen, x + dx, y + dy);
return TRUE;
}
static gboolean
mouse_press (GtkWidget *invisible,
GdkEventButton *event,
gpointer data)
{
/* GtkColorSelection *colorsel = data; */
if (event->type == GDK_BUTTON_PRESS &&
event->button == 1)
{
g_signal_connect (invisible, "motion-notify-event",
G_CALLBACK (mouse_motion),
data);
g_signal_connect (invisible, "button-release-event",
G_CALLBACK (mouse_release),
data);
g_signal_handlers_disconnect_by_func (invisible,
mouse_press,
data);
g_signal_handlers_disconnect_by_func (invisible,
key_press,
data);
return TRUE;
}
return FALSE;
}
/* when the button is clicked */
static void
get_screen_color (GtkWidget *button)
{
GtkColorSelection *colorsel = g_object_get_data (G_OBJECT (button), "COLORSEL");
GtkColorSelectionPrivate *priv = colorsel->private_data;
GdkScreen *screen = gtk_widget_get_screen (GTK_WIDGET (button));
GdkDevice *device, *keyb_device, *pointer_device;
GdkCursor *picker_cursor;
GdkGrabStatus grab_status;
GdkWindow *window;
GtkWidget *grab_widget, *toplevel;
guint32 time = gtk_get_current_event_time ();
device = gtk_get_current_event_device ();
if (device->source == GDK_SOURCE_KEYBOARD)
{
keyb_device = device;
pointer_device = gdk_device_get_associated_device (device);
}
else
{
pointer_device = device;
keyb_device = gdk_device_get_associated_device (device);
}
if (priv->dropper_grab_widget == NULL)
{
grab_widget = gtk_window_new (GTK_WINDOW_POPUP);
gtk_window_set_screen (GTK_WINDOW (grab_widget), screen);
gtk_window_resize (GTK_WINDOW (grab_widget), 1, 1);
gtk_window_move (GTK_WINDOW (grab_widget), -100, -100);
gtk_widget_show (grab_widget);
gtk_widget_add_events (grab_widget,
GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK);
toplevel = gtk_widget_get_toplevel (GTK_WIDGET (colorsel));
if (GTK_IS_WINDOW (toplevel))
{
if (gtk_window_has_group (GTK_WINDOW (toplevel)))
gtk_window_group_add_window (gtk_window_get_group (GTK_WINDOW (toplevel)),
GTK_WINDOW (grab_widget));
}
priv->dropper_grab_widget = grab_widget;
}
window = gtk_widget_get_window (priv->dropper_grab_widget);
if (gdk_device_grab (keyb_device,
window,
GDK_OWNERSHIP_APPLICATION, FALSE,
GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK,
NULL, time) != GDK_GRAB_SUCCESS)
return;
picker_cursor = make_picker_cursor (screen);
grab_status = gdk_device_grab (pointer_device,
window,
GDK_OWNERSHIP_APPLICATION,
FALSE,
GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK | GDK_POINTER_MOTION_MASK,
picker_cursor,
time);
gdk_cursor_unref (picker_cursor);
if (grab_status != GDK_GRAB_SUCCESS)
{
gdk_device_ungrab (keyb_device, time);
return;
}
gtk_device_grab_add (priv->dropper_grab_widget,
pointer_device,
TRUE);
priv->grab_time = time;
priv->has_grab = TRUE;
priv->keyboard_device = keyb_device;
priv->pointer_device = pointer_device;
g_signal_connect (priv->dropper_grab_widget, "button-press-event",
G_CALLBACK (mouse_press), colorsel);
g_signal_connect (priv->dropper_grab_widget, "key-press-event",
G_CALLBACK (key_press), colorsel);
}
static void
hex_changed (GtkWidget *hex_entry,
gpointer data)
{
GtkColorSelection *colorsel;
GtkColorSelectionPrivate *priv;
GdkColor color;
gchar *text;
colorsel = GTK_COLOR_SELECTION (data);
priv = colorsel->private_data;
if (priv->changing)
return;
text = gtk_editable_get_chars (GTK_EDITABLE (priv->hex_entry), 0, -1);
if (gdk_color_parse (text, &color))
{
priv->color[COLORSEL_RED] = CLAMP (color.red/65535.0, 0.0, 1.0);
priv->color[COLORSEL_GREEN] = CLAMP (color.green/65535.0, 0.0, 1.0);
priv->color[COLORSEL_BLUE] = CLAMP (color.blue/65535.0, 0.0, 1.0);
gtk_rgb_to_hsv (priv->color[COLORSEL_RED],
priv->color[COLORSEL_GREEN],
priv->color[COLORSEL_BLUE],
&priv->color[COLORSEL_HUE],
&priv->color[COLORSEL_SATURATION],
&priv->color[COLORSEL_VALUE]);
update_color (colorsel);
}
g_free (text);
}
static gboolean
hex_focus_out (GtkWidget *hex_entry,
GdkEventFocus *event,
gpointer data)
{
hex_changed (hex_entry, data);
return FALSE;
}
static void
hsv_changed (GtkWidget *hsv,
gpointer data)
{
GtkColorSelection *colorsel;
GtkColorSelectionPrivate *priv;
colorsel = GTK_COLOR_SELECTION (data);
priv = colorsel->private_data;
if (priv->changing)
return;
gtk_hsv_get_color (GTK_HSV (hsv),
&priv->color[COLORSEL_HUE],
&priv->color[COLORSEL_SATURATION],
&priv->color[COLORSEL_VALUE]);
gtk_hsv_to_rgb (priv->color[COLORSEL_HUE],
priv->color[COLORSEL_SATURATION],
priv->color[COLORSEL_VALUE],
&priv->color[COLORSEL_RED],
&priv->color[COLORSEL_GREEN],
&priv->color[COLORSEL_BLUE]);
update_color (colorsel);
}
static void
adjustment_changed (GtkAdjustment *adjustment,
gpointer data)
{
GtkColorSelection *colorsel;
GtkColorSelectionPrivate *priv;
colorsel = GTK_COLOR_SELECTION (g_object_get_data (G_OBJECT (adjustment), "COLORSEL"));
priv = colorsel->private_data;
if (priv->changing)
return;
switch (GPOINTER_TO_INT (data))
{
case COLORSEL_SATURATION:
case COLORSEL_VALUE:
priv->color[GPOINTER_TO_INT (data)] = adjustment->value / 100;
gtk_hsv_to_rgb (priv->color[COLORSEL_HUE],
priv->color[COLORSEL_SATURATION],
priv->color[COLORSEL_VALUE],
&priv->color[COLORSEL_RED],
&priv->color[COLORSEL_GREEN],
&priv->color[COLORSEL_BLUE]);
break;
case COLORSEL_HUE:
priv->color[GPOINTER_TO_INT (data)] = adjustment->value / 360;
gtk_hsv_to_rgb (priv->color[COLORSEL_HUE],
priv->color[COLORSEL_SATURATION],
priv->color[COLORSEL_VALUE],
&priv->color[COLORSEL_RED],
&priv->color[COLORSEL_GREEN],
&priv->color[COLORSEL_BLUE]);
break;
case COLORSEL_RED:
case COLORSEL_GREEN:
case COLORSEL_BLUE:
priv->color[GPOINTER_TO_INT (data)] = adjustment->value / 255;
gtk_rgb_to_hsv (priv->color[COLORSEL_RED],
priv->color[COLORSEL_GREEN],
priv->color[COLORSEL_BLUE],
&priv->color[COLORSEL_HUE],
&priv->color[COLORSEL_SATURATION],
&priv->color[COLORSEL_VALUE]);
break;
default:
priv->color[GPOINTER_TO_INT (data)] = adjustment->value / 255;
break;
}
update_color (colorsel);
}
static void
opacity_entry_changed (GtkWidget *opacity_entry,
gpointer data)
{
GtkColorSelection *colorsel;
GtkColorSelectionPrivate *priv;
GtkAdjustment *adj;
gchar *text;
colorsel = GTK_COLOR_SELECTION (data);
priv = colorsel->private_data;
if (priv->changing)
return;
text = gtk_editable_get_chars (GTK_EDITABLE (priv->opacity_entry), 0, -1);
adj = gtk_range_get_adjustment (GTK_RANGE (priv->opacity_slider));
gtk_adjustment_set_value (adj, g_strtod (text, NULL));
update_color (colorsel);
g_free (text);
}
static void
make_label_spinbutton (GtkColorSelection *colorsel,
GtkWidget **spinbutton,
gchar *text,
GtkWidget *table,
gint i,
gint j,
gint channel_type,
const gchar *tooltip)
{
GtkWidget *label;
GtkAdjustment *adjust;
if (channel_type == COLORSEL_HUE)
{
adjust = gtk_adjustment_new (0.0, 0.0, 360.0, 1.0, 1.0, 0.0);
}
else if (channel_type == COLORSEL_SATURATION ||
channel_type == COLORSEL_VALUE)
{
adjust = gtk_adjustment_new (0.0, 0.0, 100.0, 1.0, 1.0, 0.0);
}
else
{
adjust = gtk_adjustment_new (0.0, 0.0, 255.0, 1.0, 1.0, 0.0);
}
g_object_set_data (G_OBJECT (adjust), I_("COLORSEL"), colorsel);
*spinbutton = gtk_spin_button_new (adjust, 10.0, 0);
gtk_widget_set_tooltip_text (*spinbutton, tooltip);
g_signal_connect (adjust, "value-changed",
G_CALLBACK (adjustment_changed),
GINT_TO_POINTER (channel_type));
label = gtk_label_new_with_mnemonic (text);
gtk_label_set_mnemonic_widget (GTK_LABEL (label), *spinbutton);
gtk_misc_set_alignment (GTK_MISC (label), 0.0, 0.5);
gtk_table_attach_defaults (GTK_TABLE (table), label, i, i+1, j, j+1);
gtk_table_attach_defaults (GTK_TABLE (table), *spinbutton, i+1, i+2, j, j+1);
}
static void
make_palette_frame (GtkColorSelection *colorsel,
GtkWidget *table,
gint i,
gint j)
{
GtkWidget *frame;
GtkColorSelectionPrivate *priv;
priv = colorsel->private_data;
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
priv->custom_palette[i][j] = palette_new (colorsel);
gtk_widget_set_size_request (priv->custom_palette[i][j], CUSTOM_PALETTE_ENTRY_WIDTH, CUSTOM_PALETTE_ENTRY_HEIGHT);
gtk_container_add (GTK_CONTAINER (frame), priv->custom_palette[i][j]);
gtk_table_attach_defaults (GTK_TABLE (table), frame, i, i+1, j, j+1);
}
/* Set the palette entry [x][y] to be the currently selected one. */
static void
set_selected_palette (GtkColorSelection *colorsel, int x, int y)
{
GtkColorSelectionPrivate *priv = colorsel->private_data;
gtk_widget_grab_focus (priv->custom_palette[x][y]);
}
static double
scale_round (double val, double factor)
{
val = floor (val * factor + 0.5);
val = MAX (val, 0);
val = MIN (val, factor);
return val;
}
static void
update_color (GtkColorSelection *colorsel)
{
GtkColorSelectionPrivate *priv = colorsel->private_data;
gchar entryval[12];
gchar opacity_text[32];
gchar *ptr;
priv->changing = TRUE;
color_sample_update_samples (colorsel);
gtk_hsv_set_color (GTK_HSV (priv->triangle_colorsel),
priv->color[COLORSEL_HUE],
priv->color[COLORSEL_SATURATION],
priv->color[COLORSEL_VALUE]);
gtk_adjustment_set_value (gtk_spin_button_get_adjustment
(GTK_SPIN_BUTTON (priv->hue_spinbutton)),
scale_round (priv->color[COLORSEL_HUE], 360));
gtk_adjustment_set_value (gtk_spin_button_get_adjustment
(GTK_SPIN_BUTTON (priv->sat_spinbutton)),
scale_round (priv->color[COLORSEL_SATURATION], 100));
gtk_adjustment_set_value (gtk_spin_button_get_adjustment
(GTK_SPIN_BUTTON (priv->val_spinbutton)),
scale_round (priv->color[COLORSEL_VALUE], 100));
gtk_adjustment_set_value (gtk_spin_button_get_adjustment
(GTK_SPIN_BUTTON (priv->red_spinbutton)),
scale_round (priv->color[COLORSEL_RED], 255));
gtk_adjustment_set_value (gtk_spin_button_get_adjustment
(GTK_SPIN_BUTTON (priv->green_spinbutton)),
scale_round (priv->color[COLORSEL_GREEN], 255));
gtk_adjustment_set_value (gtk_spin_button_get_adjustment
(GTK_SPIN_BUTTON (priv->blue_spinbutton)),
scale_round (priv->color[COLORSEL_BLUE], 255));
gtk_adjustment_set_value (gtk_range_get_adjustment
(GTK_RANGE (priv->opacity_slider)),
scale_round (priv->color[COLORSEL_OPACITY], 255));
g_snprintf (opacity_text, 32, "%.0f", scale_round (priv->color[COLORSEL_OPACITY], 255));
gtk_entry_set_text (GTK_ENTRY (priv->opacity_entry), opacity_text);
g_snprintf (entryval, 11, "#%2X%2X%2X",
(guint) (scale_round (priv->color[COLORSEL_RED], 255)),
(guint) (scale_round (priv->color[COLORSEL_GREEN], 255)),
(guint) (scale_round (priv->color[COLORSEL_BLUE], 255)));
for (ptr = entryval; *ptr; ptr++)
if (*ptr == ' ')
*ptr = '0';
gtk_entry_set_text (GTK_ENTRY (priv->hex_entry), entryval);
priv->changing = FALSE;
g_object_ref (colorsel);
g_signal_emit (colorsel, color_selection_signals[COLOR_CHANGED], 0);
g_object_freeze_notify (G_OBJECT (colorsel));
g_object_notify (G_OBJECT (colorsel), "current-color");
g_object_notify (G_OBJECT (colorsel), "current-alpha");
g_object_thaw_notify (G_OBJECT (colorsel));
g_object_unref (colorsel);
}
static void
update_palette (GtkColorSelection *colorsel)
{
GdkColor *current_colors;
gint i, j;
current_colors = get_current_colors (colorsel);
for (i = 0; i < GTK_CUSTOM_PALETTE_HEIGHT; i++)
{
for (j = 0; j < GTK_CUSTOM_PALETTE_WIDTH; j++)
{
gint index;
index = i * GTK_CUSTOM_PALETTE_WIDTH + j;
gtk_color_selection_set_palette_color (colorsel,
index,
&current_colors[index]);
}
}
g_free (current_colors);
}
static void
palette_change_notify_instance (GObject *object,
GParamSpec *pspec,
gpointer data)
{
update_palette (GTK_COLOR_SELECTION (data));
}
static void
default_noscreen_change_palette_func (const GdkColor *colors,
gint n_colors)
{
default_change_palette_func (gdk_screen_get_default (), colors, n_colors);
}
static void
default_change_palette_func (GdkScreen *screen,
const GdkColor *colors,
gint n_colors)
{
gchar *str;
str = gtk_color_selection_palette_to_string (colors, n_colors);
gtk_settings_set_string_property (gtk_settings_get_for_screen (screen),
"gtk-color-palette",
str,
"gtk_color_selection_palette_to_string");
g_free (str);
}
/**
* gtk_color_selection_new:
*
* Creates a new GtkColorSelection.
*
* Return value: a new #GtkColorSelection
**/
GtkWidget *
gtk_color_selection_new (void)
{
GtkColorSelection *colorsel;
GtkColorSelectionPrivate *priv;
gdouble color[4];
color[0] = 1.0;
color[1] = 1.0;
color[2] = 1.0;
color[3] = 1.0;
colorsel = g_object_new (GTK_TYPE_COLOR_SELECTION, NULL);
priv = colorsel->private_data;
set_color_internal (colorsel, color);
gtk_color_selection_set_has_opacity_control (colorsel, TRUE);
/* We want to make sure that default_set is FALSE */
/* This way the user can still set it */
priv->default_set = FALSE;
priv->default_alpha_set = FALSE;
return GTK_WIDGET (colorsel);
}
/**
* gtk_color_selection_get_has_opacity_control:
* @colorsel: a #GtkColorSelection.
*
* Determines whether the colorsel has an opacity control.
*
* Return value: %TRUE if the @colorsel has an opacity control. %FALSE if it does't.
**/
gboolean
gtk_color_selection_get_has_opacity_control (GtkColorSelection *colorsel)
{
GtkColorSelectionPrivate *priv;
g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), FALSE);
priv = colorsel->private_data;
return priv->has_opacity;
}
/**
* gtk_color_selection_set_has_opacity_control:
* @colorsel: a #GtkColorSelection.
* @has_opacity: %TRUE if @colorsel can set the opacity, %FALSE otherwise.
*
* Sets the @colorsel to use or not use opacity.
*
**/
void
gtk_color_selection_set_has_opacity_control (GtkColorSelection *colorsel,
gboolean has_opacity)
{
GtkColorSelectionPrivate *priv;
g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
priv = colorsel->private_data;
has_opacity = has_opacity != FALSE;
if (priv->has_opacity != has_opacity)
{
priv->has_opacity = has_opacity;
if (has_opacity)
{
gtk_widget_show (priv->opacity_slider);
gtk_widget_show (priv->opacity_label);
gtk_widget_show (priv->opacity_entry);
}
else
{
gtk_widget_hide (priv->opacity_slider);
gtk_widget_hide (priv->opacity_label);
gtk_widget_hide (priv->opacity_entry);
}
color_sample_update_samples (colorsel);
g_object_notify (G_OBJECT (colorsel), "has-opacity-control");
}
}
/**
* gtk_color_selection_get_has_palette:
* @colorsel: a #GtkColorSelection.
*
* Determines whether the color selector has a color palette.
*
* Return value: %TRUE if the selector has a palette. %FALSE if it hasn't.
**/
gboolean
gtk_color_selection_get_has_palette (GtkColorSelection *colorsel)
{
GtkColorSelectionPrivate *priv;
g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), FALSE);
priv = colorsel->private_data;
return priv->has_palette;
}
/**
* gtk_color_selection_set_has_palette:
* @colorsel: a #GtkColorSelection.
* @has_palette: %TRUE if palette is to be visible, %FALSE otherwise.
*
* Shows and hides the palette based upon the value of @has_palette.
*
**/
void
gtk_color_selection_set_has_palette (GtkColorSelection *colorsel,
gboolean has_palette)
{
GtkColorSelectionPrivate *priv;
g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
priv = colorsel->private_data;
has_palette = has_palette != FALSE;
if (priv->has_palette != has_palette)
{
priv->has_palette = has_palette;
if (has_palette)
gtk_widget_show (priv->palette_frame);
else
gtk_widget_hide (priv->palette_frame);
update_tooltips (colorsel);
g_object_notify (G_OBJECT (colorsel), "has-palette");
}
}
/**
* gtk_color_selection_set_current_color:
* @colorsel: a #GtkColorSelection.
* @color: A #GdkColor to set the current color with.
*
* Sets the current color to be @color. The first time this is called, it will
* also set the original color to be @color too.
**/
void
gtk_color_selection_set_current_color (GtkColorSelection *colorsel,
const GdkColor *color)
{
GtkColorSelectionPrivate *priv;
gint i;
g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
g_return_if_fail (color != NULL);
priv = colorsel->private_data;
priv->changing = TRUE;
priv->color[COLORSEL_RED] = SCALE (color->red);
priv->color[COLORSEL_GREEN] = SCALE (color->green);
priv->color[COLORSEL_BLUE] = SCALE (color->blue);
gtk_rgb_to_hsv (priv->color[COLORSEL_RED],
priv->color[COLORSEL_GREEN],
priv->color[COLORSEL_BLUE],
&priv->color[COLORSEL_HUE],
&priv->color[COLORSEL_SATURATION],
&priv->color[COLORSEL_VALUE]);
if (priv->default_set == FALSE)
{
for (i = 0; i < COLORSEL_NUM_CHANNELS; i++)
priv->old_color[i] = priv->color[i];
}
priv->default_set = TRUE;
update_color (colorsel);
}
/**
* gtk_color_selection_set_current_alpha:
* @colorsel: a #GtkColorSelection.
* @alpha: an integer between 0 and 65535.
*
* Sets the current opacity to be @alpha. The first time this is called, it will
* also set the original opacity to be @alpha too.
**/
void
gtk_color_selection_set_current_alpha (GtkColorSelection *colorsel,
guint16 alpha)
{
GtkColorSelectionPrivate *priv;
gint i;
g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
priv = colorsel->private_data;
priv->changing = TRUE;
priv->color[COLORSEL_OPACITY] = SCALE (alpha);
if (priv->default_alpha_set == FALSE)
{
for (i = 0; i < COLORSEL_NUM_CHANNELS; i++)
priv->old_color[i] = priv->color[i];
}
priv->default_alpha_set = TRUE;
update_color (colorsel);
}
/**
* gtk_color_selection_get_current_color:
* @colorsel: a #GtkColorSelection.
* @color: (out): a #GdkColor to fill in with the current color.
*
* Sets @color to be the current color in the GtkColorSelection widget.
**/
void
gtk_color_selection_get_current_color (GtkColorSelection *colorsel,
GdkColor *color)
{
GtkColorSelectionPrivate *priv;
g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
g_return_if_fail (color != NULL);
priv = colorsel->private_data;
color->red = UNSCALE (priv->color[COLORSEL_RED]);
color->green = UNSCALE (priv->color[COLORSEL_GREEN]);
color->blue = UNSCALE (priv->color[COLORSEL_BLUE]);
}
/**
* gtk_color_selection_get_current_alpha:
* @colorsel: a #GtkColorSelection.
*
* Returns the current alpha value.
*
* Return value: an integer between 0 and 65535.
**/
guint16
gtk_color_selection_get_current_alpha (GtkColorSelection *colorsel)
{
GtkColorSelectionPrivate *priv;
g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), 0);
priv = colorsel->private_data;
return priv->has_opacity ? UNSCALE (priv->color[COLORSEL_OPACITY]) : 65535;
}
/**
* gtk_color_selection_set_previous_color:
* @colorsel: a #GtkColorSelection.
* @color: a #GdkColor to set the previous color with.
*
* Sets the 'previous' color to be @color. This function should be called with
* some hesitations, as it might seem confusing to have that color change.
* Calling gtk_color_selection_set_current_color() will also set this color the first
* time it is called.
**/
void
gtk_color_selection_set_previous_color (GtkColorSelection *colorsel,
const GdkColor *color)
{
GtkColorSelectionPrivate *priv;
g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
g_return_if_fail (color != NULL);
priv = colorsel->private_data;
priv->changing = TRUE;
priv->old_color[COLORSEL_RED] = SCALE (color->red);
priv->old_color[COLORSEL_GREEN] = SCALE (color->green);
priv->old_color[COLORSEL_BLUE] = SCALE (color->blue);
gtk_rgb_to_hsv (priv->old_color[COLORSEL_RED],
priv->old_color[COLORSEL_GREEN],
priv->old_color[COLORSEL_BLUE],
&priv->old_color[COLORSEL_HUE],
&priv->old_color[COLORSEL_SATURATION],
&priv->old_color[COLORSEL_VALUE]);
color_sample_update_samples (colorsel);
priv->default_set = TRUE;
priv->changing = FALSE;
}
/**
* gtk_color_selection_set_previous_alpha:
* @colorsel: a #GtkColorSelection.
* @alpha: an integer between 0 and 65535.
*
* Sets the 'previous' alpha to be @alpha. This function should be called with
* some hesitations, as it might seem confusing to have that alpha change.
**/
void
gtk_color_selection_set_previous_alpha (GtkColorSelection *colorsel,
guint16 alpha)
{
GtkColorSelectionPrivate *priv;
g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
priv = colorsel->private_data;
priv->changing = TRUE;
priv->old_color[COLORSEL_OPACITY] = SCALE (alpha);
color_sample_update_samples (colorsel);
priv->default_alpha_set = TRUE;
priv->changing = FALSE;
}
/**
* gtk_color_selection_get_previous_color:
* @colorsel: a #GtkColorSelection.
* @color: a #GdkColor to fill in with the original color value.
*
* Fills @color in with the original color value.
**/
void
gtk_color_selection_get_previous_color (GtkColorSelection *colorsel,
GdkColor *color)
{
GtkColorSelectionPrivate *priv;
g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
g_return_if_fail (color != NULL);
priv = colorsel->private_data;
color->red = UNSCALE (priv->old_color[COLORSEL_RED]);
color->green = UNSCALE (priv->old_color[COLORSEL_GREEN]);
color->blue = UNSCALE (priv->old_color[COLORSEL_BLUE]);
}
/**
* gtk_color_selection_get_previous_alpha:
* @colorsel: a #GtkColorSelection.
*
* Returns the previous alpha value.
*
* Return value: an integer between 0 and 65535.
**/
guint16
gtk_color_selection_get_previous_alpha (GtkColorSelection *colorsel)
{
GtkColorSelectionPrivate *priv;
g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), 0);
priv = colorsel->private_data;
return priv->has_opacity ? UNSCALE (priv->old_color[COLORSEL_OPACITY]) : 65535;
}
/**
* gtk_color_selection_set_palette_color:
* @colorsel: a #GtkColorSelection.
* @index: the color index of the palette.
* @color: A #GdkColor to set the palette with.
*
* Sets the palette located at @index to have @color as its color.
*
**/
static void
gtk_color_selection_set_palette_color (GtkColorSelection *colorsel,
gint index,
GdkColor *color)
{
GtkColorSelectionPrivate *priv;
gint x, y;
gdouble col[3];
g_return_if_fail (GTK_IS_COLOR_SELECTION (colorsel));
g_return_if_fail (index >= 0 && index < GTK_CUSTOM_PALETTE_WIDTH*GTK_CUSTOM_PALETTE_HEIGHT);
x = index % GTK_CUSTOM_PALETTE_WIDTH;
y = index / GTK_CUSTOM_PALETTE_WIDTH;
priv = colorsel->private_data;
col[0] = SCALE (color->red);
col[1] = SCALE (color->green);
col[2] = SCALE (color->blue);
palette_set_color (priv->custom_palette[x][y], colorsel, col);
}
/**
* gtk_color_selection_is_adjusting:
* @colorsel: a #GtkColorSelection.
*
* Gets the current state of the @colorsel.
*
* Return value: %TRUE if the user is currently dragging a color around, and %FALSE
* if the selection has stopped.
**/
gboolean
gtk_color_selection_is_adjusting (GtkColorSelection *colorsel)
{
GtkColorSelectionPrivate *priv;
g_return_val_if_fail (GTK_IS_COLOR_SELECTION (colorsel), FALSE);
priv = colorsel->private_data;
return (gtk_hsv_is_adjusting (GTK_HSV (priv->triangle_colorsel)));
}
/**
* gtk_color_selection_palette_from_string:
* @str: a string encoding a color palette.
* @colors: return location for allocated array of #GdkColor.
* @n_colors: return location for length of array.
*
* Parses a color palette string; the string is a colon-separated
* list of color names readable by gdk_color_parse().
*
* Return value: %TRUE if a palette was successfully parsed.
**/
gboolean
gtk_color_selection_palette_from_string (const gchar *str,
GdkColor **colors,
gint *n_colors)
{
GdkColor *retval;
gint count;
gchar *p;
gchar *start;
gchar *copy;
count = 0;
retval = NULL;
copy = g_strdup (str);
start = copy;
p = copy;
while (TRUE)
{
if (*p == ':' || *p == '\0')
{
gboolean done = TRUE;
if (start == p)
{
goto failed; /* empty entry */
}
if (*p)
{
*p = '\0';
done = FALSE;
}
retval = g_renew (GdkColor, retval, count + 1);
if (!gdk_color_parse (start, retval + count))
{
goto failed;
}
++count;
if (done)
break;
else
start = p + 1;
}
++p;
}
g_free (copy);
if (colors)
*colors = retval;
else
g_free (retval);
if (n_colors)
*n_colors = count;
return TRUE;
failed:
g_free (copy);
g_free (retval);
if (colors)
*colors = NULL;
if (n_colors)
*n_colors = 0;
return FALSE;
}
/**
* gtk_color_selection_palette_to_string:
* @colors: an array of colors.
* @n_colors: length of the array.
*
* Encodes a palette as a string, useful for persistent storage.
*
* Return value: allocated string encoding the palette.
**/
gchar*
gtk_color_selection_palette_to_string (const GdkColor *colors,
gint n_colors)
{
gint i;
gchar **strs = NULL;
gchar *retval;
if (n_colors == 0)
return g_strdup ("");
strs = g_new0 (gchar*, n_colors + 1);
i = 0;
while (i < n_colors)
{
gchar *ptr;
strs[i] =
g_strdup_printf ("#%2X%2X%2X",
colors[i].red / 256,
colors[i].green / 256,
colors[i].blue / 256);
for (ptr = strs[i]; *ptr; ptr++)
if (*ptr == ' ')
*ptr = '0';
++i;
}
retval = g_strjoinv (":", strs);
g_strfreev (strs);
return retval;
}
/**
* gtk_color_selection_set_change_palette_with_screen_hook:
* @func: a function to call when the custom palette needs saving.
*
* Installs a global function to be called whenever the user tries to
* modify the palette in a color selection. This function should save
* the new palette contents, and update the GtkSettings property
* "gtk-color-palette" so all GtkColorSelection widgets will be modified.
*
* Return value: the previous change palette hook (that was replaced).
*
* Since: 2.2
**/
GtkColorSelectionChangePaletteWithScreenFunc
gtk_color_selection_set_change_palette_with_screen_hook (GtkColorSelectionChangePaletteWithScreenFunc func)
{
GtkColorSelectionChangePaletteWithScreenFunc old;
old = change_palette_hook;
change_palette_hook = func;
return old;
}
static void
make_control_relations (AtkObject *atk_obj,
GtkWidget *widget)
{
AtkObject *obj;
obj = gtk_widget_get_accessible (widget);
atk_object_add_relationship (atk_obj, ATK_RELATION_CONTROLLED_BY, obj);
atk_object_add_relationship (obj, ATK_RELATION_CONTROLLER_FOR, atk_obj);
}
static void
make_all_relations (AtkObject *atk_obj,
GtkColorSelectionPrivate *priv)
{
make_control_relations (atk_obj, priv->hue_spinbutton);
make_control_relations (atk_obj, priv->sat_spinbutton);
make_control_relations (atk_obj, priv->val_spinbutton);
make_control_relations (atk_obj, priv->red_spinbutton);
make_control_relations (atk_obj, priv->green_spinbutton);
make_control_relations (atk_obj, priv->blue_spinbutton);
}
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