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gimp/app/widgets/gimpfgbgeditor.c

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/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpfgbgeditor.c
* Copyright (C) 2004 Michael Natterer <mitch@gimp.org>
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpcolor/gimpcolor.h"
#include "libgimpconfig/gimpconfig.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "config/gimpcoreconfig.h"
#include "core/gimp.h"
#include "core/gimpcontext.h"
#include "core/gimpimage.h"
#include "core/gimpimage-colormap.h"
#include "core/gimpmarshal.h"
#include "core/gimppalette.h"
#include "gimpdnd.h"
#include "gimpfgbgeditor.h"
#include "gimpwidgets-utils.h"
#define CHANNEL_EPSILON 1e-3
enum
{
PROP_0,
PROP_CONTEXT,
PROP_ACTIVE_COLOR
};
enum
{
COLOR_CLICKED,
COLOR_DROPPED,
COLORS_SWAPPED,
COLORS_DEFAULT,
TOOLTIP,
LAST_SIGNAL
};
static void gimp_fg_bg_editor_dispose (GObject *object);
static void gimp_fg_bg_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_fg_bg_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static GtkSizeRequestMode
gimp_fg_bg_editor_get_request_mode (GtkWidget *widget);
static void
gimp_fg_bg_editor_get_preferred_width_for_height (GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width);
static void gimp_fg_bg_editor_size_allocate (GtkWidget *editor,
GtkAllocation *allocation);
static void gimp_fg_bg_editor_style_updated (GtkWidget *widget);
static gboolean gimp_fg_bg_editor_draw (GtkWidget *widget,
cairo_t *cr);
static gboolean gimp_fg_bg_editor_button_press (GtkWidget *widget,
GdkEventButton *bevent);
static gboolean gimp_fg_bg_editor_button_release (GtkWidget *widget,
GdkEventButton *bevent);
static gboolean gimp_fg_bg_editor_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time);
static gboolean gimp_fg_bg_editor_query_tooltip (GtkWidget *widget,
gint x,
gint y,
gboolean keyboard_mode,
GtkTooltip *tooltip);
static void gimp_fg_bg_editor_drag_color (GtkWidget *widget,
GeglColor **color,
gpointer data);
static void gimp_fg_bg_editor_drop_color (GtkWidget *widget,
gint x,
gint y,
GeglColor *color,
gpointer data);
static void gimp_fg_bg_editor_image_changed (GimpFgBgEditor *editor,
GimpImage *image);
static void gimp_fg_bg_editor_draw_color_frame (GimpFgBgEditor *editor,
cairo_t *cr,
GeglColor *color,
gint x,
gint y,
gint width,
gint height,
gint corner_dx,
gint corner_dy);
G_DEFINE_TYPE (GimpFgBgEditor, gimp_fg_bg_editor, GTK_TYPE_EVENT_BOX)
#define parent_class gimp_fg_bg_editor_parent_class
static guint editor_signals[LAST_SIGNAL] = { 0 };
static void
gimp_fg_bg_editor_class_init (GimpFgBgEditorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
editor_signals[COLOR_CLICKED] =
g_signal_new ("color-clicked",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpFgBgEditorClass, color_clicked),
NULL, NULL, NULL,
G_TYPE_NONE, 1,
GIMP_TYPE_ACTIVE_COLOR);
editor_signals[COLOR_DROPPED] =
g_signal_new ("color-dropped",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpFgBgEditorClass, color_dropped),
NULL, NULL, NULL,
G_TYPE_NONE, 1,
GIMP_TYPE_ACTIVE_COLOR);
editor_signals[COLORS_SWAPPED] =
g_signal_new ("colors-swapped",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpFgBgEditorClass, colors_swapped),
NULL, NULL, NULL,
G_TYPE_NONE, 0);
editor_signals[COLORS_DEFAULT] =
g_signal_new ("colors-default",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpFgBgEditorClass, colors_default),
NULL, NULL, NULL,
G_TYPE_NONE, 0);
editor_signals[TOOLTIP] =
g_signal_new ("tooltip",
G_TYPE_FROM_CLASS (klass),
G_SIGNAL_RUN_FIRST,
G_STRUCT_OFFSET (GimpFgBgEditorClass, tooltip),
NULL, NULL,
gimp_marshal_VOID__INT_OBJECT,
G_TYPE_NONE, 2,
G_TYPE_INT,
GTK_TYPE_TOOLTIP);
object_class->dispose = gimp_fg_bg_editor_dispose;
object_class->set_property = gimp_fg_bg_editor_set_property;
object_class->get_property = gimp_fg_bg_editor_get_property;
widget_class->get_request_mode = gimp_fg_bg_editor_get_request_mode;
widget_class->get_preferred_width_for_height = gimp_fg_bg_editor_get_preferred_width_for_height;
widget_class->size_allocate = gimp_fg_bg_editor_size_allocate;
widget_class->style_updated = gimp_fg_bg_editor_style_updated;
widget_class->draw = gimp_fg_bg_editor_draw;
widget_class->button_press_event = gimp_fg_bg_editor_button_press;
widget_class->button_release_event = gimp_fg_bg_editor_button_release;
widget_class->drag_motion = gimp_fg_bg_editor_drag_motion;
widget_class->query_tooltip = gimp_fg_bg_editor_query_tooltip;
g_object_class_install_property (object_class, PROP_CONTEXT,
g_param_spec_object ("context",
NULL, NULL,
GIMP_TYPE_CONTEXT,
GIMP_PARAM_READWRITE));
g_object_class_install_property (object_class, PROP_ACTIVE_COLOR,
g_param_spec_enum ("active-color",
NULL, NULL,
GIMP_TYPE_ACTIVE_COLOR,
GIMP_ACTIVE_COLOR_FOREGROUND,
GIMP_PARAM_READWRITE));
gtk_widget_class_install_style_property (widget_class,
g_param_spec_enum ("tool-icon-size",
NULL, NULL,
GTK_TYPE_ICON_SIZE,
GTK_ICON_SIZE_SMALL_TOOLBAR,
GIMP_PARAM_READABLE));
gtk_widget_class_set_css_name (widget_class, "GimpFgBgEditor");
}
static void
gimp_fg_bg_editor_init (GimpFgBgEditor *editor)
{
editor->active_color = GIMP_ACTIVE_COLOR_FOREGROUND;
gtk_widget_set_can_focus (GTK_WIDGET (editor), FALSE);
gtk_event_box_set_visible_window (GTK_EVENT_BOX (editor), FALSE);
gtk_widget_add_events (GTK_WIDGET (editor),
GDK_BUTTON_PRESS_MASK |
GDK_BUTTON_RELEASE_MASK);
gimp_dnd_color_source_add (GTK_WIDGET (editor),
gimp_fg_bg_editor_drag_color, NULL);
gimp_dnd_color_dest_add (GTK_WIDGET (editor),
gimp_fg_bg_editor_drop_color, NULL);
gtk_widget_set_size_request (GTK_WIDGET (editor), 24, 24);
}
static void
gimp_fg_bg_editor_dispose (GObject *object)
{
GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (object);
if (editor->context)
gimp_fg_bg_editor_set_context (editor, NULL);
g_clear_weak_pointer (&editor->active_image);
g_clear_object (&editor->default_icon);
g_clear_object (&editor->swap_icon);
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gimp_fg_bg_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (object);
switch (property_id)
{
case PROP_CONTEXT:
gimp_fg_bg_editor_set_context (editor, g_value_get_object (value));
break;
case PROP_ACTIVE_COLOR:
gimp_fg_bg_editor_set_active (editor, g_value_get_enum (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_fg_bg_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (object);
switch (property_id)
{
case PROP_CONTEXT:
g_value_set_object (value, editor->context);
break;
case PROP_ACTIVE_COLOR:
g_value_set_enum (value, editor->active_color);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static GtkSizeRequestMode
gimp_fg_bg_editor_get_request_mode (GtkWidget *widget)
{
return GTK_SIZE_REQUEST_WIDTH_FOR_HEIGHT;
}
static void
gimp_fg_bg_editor_get_preferred_width_for_height (GtkWidget *widget,
gint height,
gint *minimum_width,
gint *natural_width)
{
*minimum_width = height;
*natural_width = height;
}
static void
gimp_fg_bg_editor_size_allocate (GtkWidget *widget,
GtkAllocation *allocation)
{
GTK_WIDGET_CLASS (parent_class)->size_allocate (widget, allocation);
gimp_fg_bg_editor_style_updated (widget);
}
static void
gimp_fg_bg_editor_style_updated (GtkWidget *widget)
{
GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget);
GTK_WIDGET_CLASS (parent_class)->style_updated (widget);
g_clear_object (&editor->default_icon);
g_clear_object (&editor->swap_icon);
}
static gboolean
gimp_fg_bg_editor_draw (GtkWidget *widget,
cairo_t *cr)
{
GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget);
GtkStyleContext *style = gtk_widget_get_style_context (widget);
GtkIconSize tool_size = GTK_ICON_SIZE_SMALL_TOOLBAR;
gint pixel_size;
GtkBorder border;
GtkBorder padding;
GdkRectangle rect;
gint scale_factor;
gint width, height;
gint default_w, default_h;
gint swap_w, swap_h;
gtk_style_context_save (style);
width = gtk_widget_get_allocated_width (widget);
height = gtk_widget_get_allocated_height (widget);
gtk_style_context_get_border (style, gtk_style_context_get_state (style),
&border);
gtk_style_context_get_padding (style, gtk_style_context_get_state (style),
&padding);
gtk_widget_style_get (GTK_WIDGET (widget),
"tool-icon-size", &tool_size,
NULL);
/* Setting the upper bounds of the swap and default colors icons
* based on the user's current icon scale */
switch (tool_size)
{
case GTK_ICON_SIZE_LARGE_TOOLBAR:
pixel_size = 9;
break;
case GTK_ICON_SIZE_DND:
pixel_size = 15;
break;
case GTK_ICON_SIZE_DIALOG:
pixel_size = 20;
break;
case GTK_ICON_SIZE_SMALL_TOOLBAR:
default:
pixel_size = 6;
}
border.left += padding.left;
border.right += padding.right;
border.top += padding.top;
border.bottom += padding.bottom;
scale_factor = gtk_widget_get_scale_factor (widget);
/* draw the default colors pixbuf */
if (! editor->default_icon)
editor->default_icon = gimp_widget_load_icon (widget,
GIMP_ICON_COLORS_DEFAULT,
MAX (MIN (width * 0.3,
2 * pixel_size),
pixel_size));
default_w = gdk_pixbuf_get_width (editor->default_icon) / scale_factor;
default_h = gdk_pixbuf_get_height (editor->default_icon) / scale_factor;
if (default_w < width / 2 && default_h < height / 2)
{
cairo_surface_t *surface;
surface = gdk_cairo_surface_create_from_pixbuf (editor->default_icon,
scale_factor, NULL);
cairo_set_source_surface (cr, surface,
border.left,
height - border.bottom - default_h);
cairo_surface_destroy (surface);
cairo_paint (cr);
}
else
{
default_w = default_h = 0;
}
/* draw the swap colors pixbuf */
if (! editor->swap_icon)
editor->swap_icon = gimp_widget_load_icon (widget,
GIMP_ICON_COLORS_SWAP,
MAX (MIN (width * 0.3,
2 * pixel_size),
pixel_size));
swap_w = gdk_pixbuf_get_width (editor->swap_icon) / scale_factor;
swap_h = gdk_pixbuf_get_height (editor->swap_icon) / scale_factor;
if (swap_w < width / 2 && swap_h < height / 2)
{
cairo_surface_t *surface;
surface = gdk_cairo_surface_create_from_pixbuf (editor->swap_icon,
scale_factor, NULL);
cairo_set_source_surface (cr, surface,
width - border.right - swap_w,
border.top);
cairo_surface_destroy (surface);
cairo_paint (cr);
}
else
{
swap_w = swap_h = 0;
}
rect.width = width - MAX (default_w, swap_w) - 4 - border.top - border.bottom;
rect.height = height - MAX (default_h, swap_h) - 2 - border.left - border.right;
if (rect.height > (height * 3 / 4))
rect.width = MAX (rect.width - (rect.height - ((height * 3 / 4))),
width * 2 / 3);
editor->rect_width = rect.width;
editor->rect_height = rect.height;
if (editor->context)
{
GeglColor *color;
/* draw the background frame */
color = gimp_context_get_background (editor->context);
rect.x = width - rect.width - border.right;
rect.y = height - rect.height - border.bottom;
gimp_fg_bg_editor_draw_color_frame (editor, cr, color,
rect.x, rect.y,
rect.width, rect.height,
-1, -1);
/* draw the foreground frame */
color = gimp_context_get_foreground (editor->context);
rect.x = border.left;
rect.y = border.top;
gimp_fg_bg_editor_draw_color_frame (editor, cr, color,
rect.x, rect.y,
rect.width, rect.height,
+1, +1);
}
gtk_style_context_restore (style);
return TRUE;
}
static GimpFgBgTarget
gimp_fg_bg_editor_target (GimpFgBgEditor *editor,
gint x,
gint y)
{
GtkWidget *widget = GTK_WIDGET (editor);
GtkStyleContext *style = gtk_widget_get_style_context (widget);
GtkBorder border;
GtkBorder padding;
gint width;
gint height;
gint rect_w = editor->rect_width;
gint rect_h = editor->rect_height;
gint button_width;
gint button_height;
width = gtk_widget_get_allocated_width (widget);
height = gtk_widget_get_allocated_height (widget);
gtk_style_context_get_border (style, gtk_style_context_get_state (style),
&border);
gtk_style_context_get_padding (style, gtk_style_context_get_state (style),
&padding);
border.left += padding.left;
border.right += padding.right;
border.top += padding.top;
border.bottom += padding.bottom;
button_width = width - border.left - border.right - rect_w;
button_height = height - border.top - border.bottom - rect_h;
if (x > border.left &&
x < border.left + rect_w &&
y > border.top &&
y < border.top + rect_h)
{
return GIMP_FG_BG_TARGET_FOREGROUND;
}
else if (x > width - border.right - rect_w &&
x < width - border.right &&
y > height - border.bottom - rect_h &&
y < height - border.bottom)
{
return GIMP_FG_BG_TARGET_BACKGROUND;
}
else if (x > border.left &&
x < border.left + button_width &&
y > border.top + rect_h &&
y < height - border.bottom)
{
return GIMP_FG_BG_TARGET_DEFAULT;
}
else if (x > border.left + rect_w &&
x < width - border.right &&
y > border.top &&
y < border.top + button_height)
{
return GIMP_FG_BG_TARGET_SWAP;
}
return GIMP_FG_BG_TARGET_INVALID;
}
static gboolean
gimp_fg_bg_editor_button_press (GtkWidget *widget,
GdkEventButton *bevent)
{
GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget);
if (bevent->button == 1 && bevent->type == GDK_BUTTON_PRESS)
{
GimpFgBgTarget target = gimp_fg_bg_editor_target (editor,
bevent->x, bevent->y);
editor->click_target = GIMP_FG_BG_TARGET_INVALID;
switch (target)
{
case GIMP_FG_BG_TARGET_FOREGROUND:
if (editor->active_color != GIMP_ACTIVE_COLOR_FOREGROUND)
gimp_fg_bg_editor_set_active (editor,
GIMP_ACTIVE_COLOR_FOREGROUND);
editor->click_target = GIMP_FG_BG_TARGET_FOREGROUND;
break;
case GIMP_FG_BG_TARGET_BACKGROUND:
if (editor->active_color != GIMP_ACTIVE_COLOR_BACKGROUND)
gimp_fg_bg_editor_set_active (editor,
GIMP_ACTIVE_COLOR_BACKGROUND);
editor->click_target = GIMP_FG_BG_TARGET_BACKGROUND;
break;
case GIMP_FG_BG_TARGET_SWAP:
if (editor->context)
{
gimp_context_swap_colors (editor->context);
g_signal_emit (editor, editor_signals[COLORS_SWAPPED], 0);
}
break;
case GIMP_FG_BG_TARGET_DEFAULT:
if (editor->context)
{
gimp_context_set_default_colors (editor->context);
g_signal_emit (editor, editor_signals[COLORS_DEFAULT], 0);
}
break;
default:
break;
}
}
return GDK_EVENT_STOP;
}
static gboolean
gimp_fg_bg_editor_button_release (GtkWidget *widget,
GdkEventButton *bevent)
{
GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget);
if (bevent->button == 1)
{
GimpFgBgTarget target = gimp_fg_bg_editor_target (editor,
bevent->x, bevent->y);
if (target == editor->click_target)
{
switch (target)
{
case GIMP_FG_BG_TARGET_FOREGROUND:
g_signal_emit (editor, editor_signals[COLOR_CLICKED], 0,
GIMP_ACTIVE_COLOR_FOREGROUND);
break;
case GIMP_FG_BG_TARGET_BACKGROUND:
g_signal_emit (editor, editor_signals[COLOR_CLICKED], 0,
GIMP_ACTIVE_COLOR_BACKGROUND);
break;
default:
break;
}
}
editor->click_target = GIMP_FG_BG_TARGET_INVALID;
}
return GDK_EVENT_STOP;
}
static gboolean
gimp_fg_bg_editor_drag_motion (GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time)
{
GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget);
GimpFgBgTarget target = gimp_fg_bg_editor_target (editor, x, y);
if (target == GIMP_FG_BG_TARGET_FOREGROUND ||
target == GIMP_FG_BG_TARGET_BACKGROUND)
{
gdk_drag_status (context, GDK_ACTION_COPY, time);
return TRUE;
}
gdk_drag_status (context, 0, time);
return FALSE;
}
static gboolean
gimp_fg_bg_editor_query_tooltip (GtkWidget *widget,
gint x,
gint y,
gboolean keyboard_mode,
GtkTooltip *tooltip)
{
if (! keyboard_mode)
{
GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget);
GimpFgBgTarget target = gimp_fg_bg_editor_target (editor, x, y);
if (target != GIMP_FG_BG_TARGET_INVALID)
{
g_signal_emit (widget, editor_signals[TOOLTIP], 0,
target, tooltip);
return TRUE;
}
}
return FALSE;
}
/* public functions */
GtkWidget *
gimp_fg_bg_editor_new (GimpContext *context)
{
g_return_val_if_fail (context == NULL || GIMP_IS_CONTEXT (context), NULL);
return g_object_new (GIMP_TYPE_FG_BG_EDITOR,
"context", context,
NULL);
}
void
gimp_fg_bg_editor_set_context (GimpFgBgEditor *editor,
GimpContext *context)
{
g_return_if_fail (GIMP_IS_FG_BG_EDITOR (editor));
g_return_if_fail (context == NULL || GIMP_IS_CONTEXT (context));
if (context != editor->context)
{
if (editor->context)
{
g_signal_handlers_disconnect_by_func (editor->context,
gtk_widget_queue_draw,
editor);
g_signal_handlers_disconnect_by_func (editor->context,
G_CALLBACK (gimp_fg_bg_editor_image_changed),
editor);
g_object_unref (editor->context);
g_clear_object (&editor->color_config);
}
editor->context = context;
if (context)
{
g_object_ref (context);
g_signal_connect_swapped (context, "foreground-changed",
G_CALLBACK (gtk_widget_queue_draw),
editor);
g_signal_connect_swapped (context, "background-changed",
G_CALLBACK (gtk_widget_queue_draw),
editor);
g_signal_connect_swapped (context, "image-changed",
G_CALLBACK (gimp_fg_bg_editor_image_changed),
editor);
editor->color_config = g_object_ref (context->gimp->config->color_management);
}
g_object_notify (G_OBJECT (editor), "context");
}
}
void
gimp_fg_bg_editor_set_active (GimpFgBgEditor *editor,
GimpActiveColor active)
{
g_return_if_fail (GIMP_IS_FG_BG_EDITOR (editor));
editor->active_color = active;
gtk_widget_queue_draw (GTK_WIDGET (editor));
g_object_notify (G_OBJECT (editor), "active-color");
}
/* private functions */
static void
gimp_fg_bg_editor_drag_color (GtkWidget *widget,
GeglColor **color,
gpointer data)
{
GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget);
if (editor->context)
{
switch (editor->active_color)
{
case GIMP_ACTIVE_COLOR_FOREGROUND:
*color = gegl_color_duplicate (gimp_context_get_foreground (editor->context));
break;
case GIMP_ACTIVE_COLOR_BACKGROUND:
*color = gegl_color_duplicate (gimp_context_get_background (editor->context));
break;
}
}
}
static void
gimp_fg_bg_editor_drop_color (GtkWidget *widget,
gint x,
gint y,
GeglColor *color,
gpointer data)
{
GimpFgBgEditor *editor = GIMP_FG_BG_EDITOR (widget);
if (editor->context)
{
switch (gimp_fg_bg_editor_target (editor, x, y))
{
case GIMP_FG_BG_TARGET_FOREGROUND:
gimp_context_set_foreground (editor->context, color);
g_signal_emit (editor, editor_signals[COLOR_DROPPED], 0,
GIMP_ACTIVE_COLOR_FOREGROUND);
break;
case GIMP_FG_BG_TARGET_BACKGROUND:
gimp_context_set_background (editor->context, color);
g_signal_emit (editor, editor_signals[COLOR_DROPPED], 0,
GIMP_ACTIVE_COLOR_BACKGROUND);
break;
default:
break;
}
}
}
static void
gimp_fg_bg_editor_image_changed (GimpFgBgEditor *editor,
GimpImage *image)
{
gtk_widget_queue_draw (GTK_WIDGET (editor));
if (editor->active_image)
{
g_signal_handlers_disconnect_by_func (editor->active_image,
G_CALLBACK (gtk_widget_queue_draw),
editor);
if (gimp_image_get_base_type (editor->active_image) == GIMP_INDEXED)
{
GimpPalette *palette;
palette = gimp_image_get_colormap_palette (editor->active_image);
g_signal_handlers_disconnect_by_func (palette,
G_CALLBACK (gtk_widget_queue_draw),
editor);
}
}
g_set_weak_pointer (&editor->active_image, image);
if (image)
{
g_signal_connect_swapped (image, "notify::base-type",
G_CALLBACK (gtk_widget_queue_draw),
editor);
g_signal_connect_swapped (image, "colormap-changed",
G_CALLBACK (gtk_widget_queue_draw),
editor);
if (gimp_image_get_base_type (image) == GIMP_INDEXED)
{
GimpPalette *palette;
palette = gimp_image_get_colormap_palette (editor->active_image);
g_signal_connect_swapped (palette, "dirty",
G_CALLBACK (gtk_widget_queue_draw),
editor);
}
}
}
static void
gimp_fg_bg_editor_draw_color_frame (GimpFgBgEditor *editor,
cairo_t *cr,
GeglColor *color,
gint x,
gint y,
gint width,
gint height,
gint corner_dx,
gint corner_dy)
{
GimpPalette *colormap_palette = NULL;
GimpImageBaseType base_type = GIMP_RGB;
gboolean is_out_of_gamut;
if (editor->active_image)
{
base_type = gimp_image_get_base_type (editor->active_image);
if (base_type == GIMP_INDEXED)
{
colormap_palette = gimp_image_get_colormap_palette (
editor->active_image);
}
}
cairo_save (cr);
gimp_cairo_set_source_color (cr, color, editor->color_config, FALSE, GTK_WIDGET (editor));
cairo_rectangle (cr, x, y, width, height);
cairo_fill (cr);
if (editor->active_image)
{
const Babl *target_space = gimp_image_get_layer_space (editor->active_image);
is_out_of_gamut = gimp_color_is_out_of_gamut (color, target_space);
}
else
{
/* Without active image, we are never out of gamut. */
is_out_of_gamut = FALSE;
}
if (editor->color_config &&
/* Common out-of-gamut case */
(is_out_of_gamut ||
/* Indexed images */
(colormap_palette &&
! gimp_palette_find_entry (colormap_palette, color, NULL))))
{
GeglColor *out_of_gamut_color;
gint corner_x = x + 0.5 * (1.0 - corner_dx) * width;
gint corner_y = y + 0.5 * (1.0 - corner_dy) * height;
gint side = MIN (width, height) * 2 / 3;
cairo_move_to (cr, corner_x, corner_y);
cairo_line_to (cr, corner_x + side * corner_dx, corner_y);
cairo_line_to (cr, corner_x, corner_y + side * corner_dy);
cairo_close_path (cr);
out_of_gamut_color = gimp_color_config_get_out_of_gamut_color (editor->color_config);
/* Out-of-gamut color is color-managed to FG/BG editor's monitor profile
* but not soft-proofed.
*/
gimp_cairo_set_source_color (cr, out_of_gamut_color, editor->color_config, FALSE, GTK_WIDGET (editor));
cairo_fill (cr);
g_object_unref (out_of_gamut_color);
}
cairo_set_line_width (cr, 1.0);
cairo_set_source_rgb (cr, 0.0, 0.0, 0.0);
cairo_rectangle (cr, x + 0.5, y + 0.5, width - 1.0, height - 1.0);
cairo_stroke (cr);
cairo_set_source_rgb (cr, 1.0, 1.0, 1.0);
cairo_rectangle (cr, x + 1.5, y + 1.5, width - 3.0, height - 3.0);
cairo_stroke (cr);
cairo_restore (cr);
}
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