Gimp/app/widgets/gimpsamplepointeditor.c
Jehan 86854ee66f app: GimpColorFrame is now much more space aware.
This one is kind of a huge deal, because the info returned by the color frame
was kind of messy (even though it improved lately, but space associated to color
data had to be kept in-sync by hand, which was bug-prone).

Now the color frame stores the data as a GeglColor, always aware of its space
and therefore able to do much nicer conversion. Also RGB and Grayscale options
now display the profile name of the color space (until now, we had only this for
the CMYK option using the proofing profile).

I still wish to get more options. Typically some people may want to get
RGB/Grayscale/CMYK values to other spaces (maybe sRGB, one of their favorite
profile as set in Preferences or just any random profile which they could load
from disk). Giving such ability to basically live-convert their pixel data to
various other color space would be very nice. We'll see if this will be
implemented for GIMP 3 or for after.
2024-02-11 23:28:03 +01:00

628 lines
22 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpsamplepointeditor.c
* Copyright (C) 2005-2016 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 <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "config/gimpcoreconfig.h"
#include "core/gimp.h"
#include "core/gimpimage.h"
#include "core/gimpimage-pick-color.h"
#include "core/gimpimage-sample-points.h"
#include "core/gimpsamplepoint.h"
#include "gimpcolorframe.h"
#include "gimpmenufactory.h"
#include "gimpsamplepointeditor.h"
#include "gimpwidgets-utils.h"
#include "gimp-intl.h"
enum
{
PROP_0,
PROP_SAMPLE_MERGED
};
static void gimp_sample_point_editor_constructed (GObject *object);
static void gimp_sample_point_editor_dispose (GObject *object);
static void gimp_sample_point_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec);
static void gimp_sample_point_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec);
static void gimp_sample_point_editor_style_updated (GtkWidget *widget);
static void gimp_sample_point_editor_set_image (GimpImageEditor *editor,
GimpImage *image);
static void gimp_sample_point_editor_point_added (GimpImage *image,
GimpSamplePoint *sample_point,
GimpSamplePointEditor *editor);
static void gimp_sample_point_editor_point_removed (GimpImage *image,
GimpSamplePoint *sample_point,
GimpSamplePointEditor *editor);
static void gimp_sample_point_editor_point_moved (GimpImage *image,
GimpSamplePoint *sample_point,
GimpSamplePointEditor *editor);
static void gimp_sample_point_editor_proj_update (GimpImage *image,
gboolean now,
gint x,
gint y,
gint width,
gint height,
GimpSamplePointEditor *editor);
static void gimp_sample_point_editor_points_changed (GimpSamplePointEditor *editor);
static void gimp_sample_point_editor_dirty (GimpSamplePointEditor *editor,
gint index);
static gboolean gimp_sample_point_editor_update (GimpSamplePointEditor *editor);
static void gimp_sample_point_editor_mode_notify (GimpColorFrame *frame,
const GParamSpec *pspec,
GimpSamplePointEditor *editor);
G_DEFINE_TYPE (GimpSamplePointEditor, gimp_sample_point_editor,
GIMP_TYPE_IMAGE_EDITOR)
#define parent_class gimp_sample_point_editor_parent_class
static void
gimp_sample_point_editor_class_init (GimpSamplePointEditorClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
GimpImageEditorClass *image_editor_class = GIMP_IMAGE_EDITOR_CLASS (klass);
object_class->constructed = gimp_sample_point_editor_constructed;
object_class->dispose = gimp_sample_point_editor_dispose;
object_class->get_property = gimp_sample_point_editor_get_property;
object_class->set_property = gimp_sample_point_editor_set_property;
widget_class->style_updated = gimp_sample_point_editor_style_updated;
image_editor_class->set_image = gimp_sample_point_editor_set_image;
g_object_class_install_property (object_class, PROP_SAMPLE_MERGED,
g_param_spec_boolean ("sample-merged",
NULL, NULL,
TRUE,
GIMP_PARAM_READWRITE |
G_PARAM_CONSTRUCT));
}
static void
gimp_sample_point_editor_init (GimpSamplePointEditor *editor)
{
GtkWidget *scrolled_window;
GtkWidget *viewport;
GtkWidget *vbox;
gint content_spacing;
editor->sample_merged = TRUE;
gtk_widget_style_get (GTK_WIDGET (editor),
"content-spacing", &content_spacing,
NULL);
scrolled_window = gtk_scrolled_window_new (NULL, NULL);
gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_POLICY_NEVER,
GTK_POLICY_AUTOMATIC);
gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
GTK_SHADOW_NONE);
gtk_box_pack_start (GTK_BOX (editor), scrolled_window, TRUE, TRUE, 0);
gtk_widget_show (scrolled_window);
viewport = gtk_viewport_new (NULL, NULL);
gtk_viewport_set_shadow_type (GTK_VIEWPORT (viewport), GTK_SHADOW_NONE);
gtk_container_add (GTK_CONTAINER (scrolled_window), viewport);
gtk_widget_show (viewport);
vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 0);
gtk_container_add (GTK_CONTAINER (viewport), vbox);
gtk_widget_show (vbox);
editor->empty_icon = gtk_image_new_from_icon_name (GIMP_ICON_SAMPLE_POINT,
GTK_ICON_SIZE_BUTTON);
gtk_box_pack_start (GTK_BOX (vbox), editor->empty_icon, TRUE, TRUE, 0);
gtk_widget_show (editor->empty_icon);
editor->empty_label = gtk_label_new (_("This image\nhas no\nsample points"));
gtk_label_set_justify (GTK_LABEL (editor->empty_label), GTK_JUSTIFY_CENTER);
gimp_label_set_attributes (GTK_LABEL (editor->empty_label),
PANGO_ATTR_STYLE, PANGO_STYLE_ITALIC,
-1);
gtk_box_pack_start (GTK_BOX (vbox), editor->empty_label, TRUE, TRUE, 0);
editor->grid = gtk_grid_new ();
gtk_grid_set_row_spacing (GTK_GRID (editor->grid), content_spacing);
gtk_grid_set_column_spacing (GTK_GRID (editor->grid), content_spacing);
gtk_box_pack_start (GTK_BOX (vbox), editor->grid, FALSE, FALSE, 0);
gtk_widget_show (editor->grid);
}
static void
gimp_sample_point_editor_constructed (GObject *object)
{
G_OBJECT_CLASS (parent_class)->constructed (object);
}
static void
gimp_sample_point_editor_dispose (GObject *object)
{
GimpSamplePointEditor *editor = GIMP_SAMPLE_POINT_EDITOR (object);
g_clear_pointer (&editor->color_frames, g_free);
if (editor->dirty_idle_id)
{
g_source_remove (editor->dirty_idle_id);
editor->dirty_idle_id = 0;
}
G_OBJECT_CLASS (parent_class)->dispose (object);
}
static void
gimp_sample_point_editor_set_property (GObject *object,
guint property_id,
const GValue *value,
GParamSpec *pspec)
{
GimpSamplePointEditor *editor = GIMP_SAMPLE_POINT_EDITOR (object);
switch (property_id)
{
case PROP_SAMPLE_MERGED:
gimp_sample_point_editor_set_sample_merged (editor,
g_value_get_boolean (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_sample_point_editor_get_property (GObject *object,
guint property_id,
GValue *value,
GParamSpec *pspec)
{
GimpSamplePointEditor *editor = GIMP_SAMPLE_POINT_EDITOR (object);
switch (property_id)
{
case PROP_SAMPLE_MERGED:
g_value_set_boolean (value, editor->sample_merged);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
break;
}
}
static void
gimp_sample_point_editor_style_updated (GtkWidget *widget)
{
GimpSamplePointEditor *editor = GIMP_SAMPLE_POINT_EDITOR (widget);
GTK_WIDGET_CLASS (parent_class)->style_updated (widget);
if (editor->grid)
{
gint content_spacing;
gtk_widget_style_get (widget,
"content-spacing", &content_spacing,
NULL);
gtk_grid_set_row_spacing (GTK_GRID (editor->grid), content_spacing);
gtk_grid_set_column_spacing (GTK_GRID (editor->grid), content_spacing);
}
}
static void
gimp_sample_point_editor_set_image (GimpImageEditor *image_editor,
GimpImage *image)
{
GimpSamplePointEditor *editor = GIMP_SAMPLE_POINT_EDITOR (image_editor);
if (image_editor->image)
{
g_signal_handlers_disconnect_by_func (image_editor->image,
gimp_sample_point_editor_point_added,
editor);
g_signal_handlers_disconnect_by_func (image_editor->image,
gimp_sample_point_editor_point_removed,
editor);
g_signal_handlers_disconnect_by_func (image_editor->image,
gimp_sample_point_editor_point_moved,
editor);
g_signal_handlers_disconnect_by_func (gimp_image_get_projection (image_editor->image),
gimp_sample_point_editor_proj_update,
editor);
}
GIMP_IMAGE_EDITOR_CLASS (parent_class)->set_image (image_editor, image);
if (image)
{
g_signal_connect (image, "sample-point-added",
G_CALLBACK (gimp_sample_point_editor_point_added),
editor);
g_signal_connect (image, "sample-point-removed",
G_CALLBACK (gimp_sample_point_editor_point_removed),
editor);
g_signal_connect (image, "sample-point-moved",
G_CALLBACK (gimp_sample_point_editor_point_moved),
editor);
g_signal_connect (gimp_image_get_projection (image), "update",
G_CALLBACK (gimp_sample_point_editor_proj_update),
editor);
}
gtk_widget_set_visible (editor->empty_icon,
image_editor->image == NULL);
gimp_sample_point_editor_points_changed (editor);
}
/* public functions */
GtkWidget *
gimp_sample_point_editor_new (GimpMenuFactory *menu_factory)
{
g_return_val_if_fail (GIMP_IS_MENU_FACTORY (menu_factory), NULL);
return g_object_new (GIMP_TYPE_SAMPLE_POINT_EDITOR,
"menu-factory", menu_factory,
"menu-identifier", "<SamplePoints>",
"ui-path", "/sample-points-popup",
NULL);
}
void
gimp_sample_point_editor_set_sample_merged (GimpSamplePointEditor *editor,
gboolean sample_merged)
{
g_return_if_fail (GIMP_IS_SAMPLE_POINT_EDITOR (editor));
sample_merged = sample_merged ? TRUE : FALSE;
if (editor->sample_merged != sample_merged)
{
editor->sample_merged = sample_merged;
gimp_sample_point_editor_dirty (editor, -1);
g_object_notify (G_OBJECT (editor), "sample-merged");
}
}
gboolean
gimp_sample_point_editor_get_sample_merged (GimpSamplePointEditor *editor)
{
g_return_val_if_fail (GIMP_IS_SAMPLE_POINT_EDITOR (editor), FALSE);
return editor->sample_merged;
}
/* private functions */
static void
gimp_sample_point_editor_point_added (GimpImage *image,
GimpSamplePoint *sample_point,
GimpSamplePointEditor *editor)
{
gimp_sample_point_editor_points_changed (editor);
}
static void
gimp_sample_point_editor_point_removed (GimpImage *image,
GimpSamplePoint *sample_point,
GimpSamplePointEditor *editor)
{
gimp_sample_point_editor_points_changed (editor);
}
static void
gimp_sample_point_editor_point_moved (GimpImage *image,
GimpSamplePoint *sample_point,
GimpSamplePointEditor *editor)
{
gint i = g_list_index (gimp_image_get_sample_points (image), sample_point);
gimp_sample_point_editor_dirty (editor, i);
}
static void
gimp_sample_point_editor_proj_update (GimpImage *image,
gboolean now,
gint x,
gint y,
gint width,
gint height,
GimpSamplePointEditor *editor)
{
GimpImageEditor *image_editor = GIMP_IMAGE_EDITOR (editor);
GList *sample_points;
gint n_points = 0;
GList *list;
gint i;
sample_points = gimp_image_get_sample_points (image_editor->image);
n_points = MIN (editor->n_color_frames, g_list_length (sample_points));
for (i = 0, list = sample_points;
i < n_points;
i++, list = g_list_next (list))
{
GimpSamplePoint *sample_point = list->data;
gint sp_x;
gint sp_y;
gimp_sample_point_get_position (sample_point, &sp_x, &sp_y);
if (sp_x >= x && sp_x < (x + width) &&
sp_y >= y && sp_y < (y + height))
{
gimp_sample_point_editor_dirty (editor, i);
}
}
}
static void
gimp_sample_point_editor_points_changed (GimpSamplePointEditor *editor)
{
GimpImageEditor *image_editor = GIMP_IMAGE_EDITOR (editor);
GList *sample_points;
gint n_points = 0;
gint i;
if (image_editor->image)
{
sample_points = gimp_image_get_sample_points (image_editor->image);
n_points = g_list_length (sample_points);
}
gtk_widget_set_visible (editor->empty_label,
image_editor->image && n_points == 0);
/* Keep that many color frames around so they remember their color
* model. Let's hope nobody uses more and notices they get reset to
* "pixel". See https://gitlab.gnome.org/GNOME/gimp/issues/1805
*/
#define RANDOM_MAGIC 16
if (n_points < editor->n_color_frames &&
n_points < RANDOM_MAGIC &&
editor->n_color_frames > RANDOM_MAGIC)
{
for (i = RANDOM_MAGIC; i < editor->n_color_frames; i++)
{
gtk_widget_destroy (editor->color_frames[i]);
}
editor->color_frames = g_renew (GtkWidget *, editor->color_frames,
RANDOM_MAGIC);
editor->n_color_frames = RANDOM_MAGIC;
}
else if (n_points > editor->n_color_frames)
{
GimpColorConfig *config;
config = image_editor->image->gimp->config->color_management;
editor->color_frames = g_renew (GtkWidget *, editor->color_frames,
n_points);
for (i = editor->n_color_frames; i < n_points; i++)
{
gint row = i / 2;
gint column = i % 2;
editor->color_frames[i] =
g_object_new (GIMP_TYPE_COLOR_FRAME,
"gimp", GIMP (image_editor->image->gimp),
"mode", GIMP_COLOR_PICK_MODE_PIXEL,
"has-number", TRUE,
"number", i + 1,
"has-color-area", TRUE,
"has-coords", TRUE,
"hexpand", TRUE,
NULL);
gimp_color_frame_set_color_config (GIMP_COLOR_FRAME (editor->color_frames[i]),
config);
gtk_grid_attach (GTK_GRID (editor->grid), editor->color_frames[i],
column, row, 1, 1);
g_signal_connect_object (editor->color_frames[i], "notify::mode",
G_CALLBACK (gimp_sample_point_editor_mode_notify),
editor, 0);
g_object_set_data (G_OBJECT (editor->color_frames[i]),
"dirty", GINT_TO_POINTER (TRUE));
}
editor->n_color_frames = n_points;
}
for (i = 0; i < editor->n_color_frames; i++)
{
gtk_widget_set_visible (editor->color_frames[i], i < n_points);
}
if (n_points > 0)
gimp_sample_point_editor_dirty (editor, -1);
}
static void
gimp_sample_point_editor_dirty (GimpSamplePointEditor *editor,
gint index)
{
if (index >= 0)
{
g_object_set_data (G_OBJECT (editor->color_frames[index]),
"dirty", GINT_TO_POINTER (TRUE));
}
else
{
gint i;
for (i = 0; i < editor->n_color_frames; i++)
g_object_set_data (G_OBJECT (editor->color_frames[i]),
"dirty", GINT_TO_POINTER (TRUE));
}
if (editor->dirty_idle_id)
g_source_remove (editor->dirty_idle_id);
editor->dirty_idle_id =
g_idle_add ((GSourceFunc) gimp_sample_point_editor_update,
editor);
}
static gboolean
gimp_sample_point_editor_update (GimpSamplePointEditor *editor)
{
GimpImageEditor *image_editor = GIMP_IMAGE_EDITOR (editor);
GList *sample_points;
gint n_points;
GList *list;
gint i;
editor->dirty_idle_id = 0;
if (! image_editor->image)
return FALSE;
sample_points = gimp_image_get_sample_points (image_editor->image);
n_points = MIN (editor->n_color_frames, g_list_length (sample_points));
for (i = 0, list = sample_points;
i < n_points;
i++, list = g_list_next (list))
{
GimpColorFrame *color_frame = GIMP_COLOR_FRAME (editor->color_frames[i]);
if (GPOINTER_TO_INT (g_object_get_data (G_OBJECT (color_frame),
"dirty")))
{
GimpSamplePoint *sample_point = list->data;
const Babl *format;
gdouble pixel[4];
GeglColor *color;
GimpColorPickMode pick_mode;
gint x;
gint y;
g_object_set_data (G_OBJECT (color_frame),
"dirty", GINT_TO_POINTER (FALSE));
gimp_sample_point_get_position (sample_point, &x, &y);
color = gegl_color_new ("black");
if (gimp_image_pick_color (image_editor->image, NULL,
x, y,
FALSE,
editor->sample_merged,
FALSE, 0.0,
&format,
pixel,
&color))
{
gimp_color_frame_set_color (color_frame, FALSE, color, x, y);
}
else
{
gimp_color_frame_set_invalid (color_frame);
}
pick_mode = gimp_sample_point_get_pick_mode (sample_point);
gimp_color_frame_set_mode (color_frame, pick_mode);
g_object_unref (color);
}
}
return FALSE;
}
static void
gimp_sample_point_editor_mode_notify (GimpColorFrame *frame,
const GParamSpec *pspec,
GimpSamplePointEditor *editor)
{
GimpImageEditor *image_editor = GIMP_IMAGE_EDITOR (editor);
GList *sample_points;
gint n_points;
GList *list;
gint i;
sample_points = gimp_image_get_sample_points (image_editor->image);
n_points = MIN (editor->n_color_frames, g_list_length (sample_points));
for (i = 0, list = sample_points;
i < n_points;
i++, list = g_list_next (list))
{
if (GIMP_COLOR_FRAME (editor->color_frames[i]) == frame)
{
GimpSamplePoint *sample_point = list->data;
GimpColorPickMode pick_mode;
g_object_get (frame, "mode", &pick_mode, NULL);
if (pick_mode != gimp_sample_point_get_pick_mode (sample_point))
gimp_image_set_sample_point_pick_mode (image_editor->image,
sample_point,
pick_mode,
TRUE);
break;
}
}
}