callisto-debian/gimp
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
d25db86fc94e571bf80b3f448b93a6daff1c1b4e
gimp/libgimpwidgets/gimpcolorselect.c
Jehan 54a1e8f2b1 libgimpwidgets: use g_return_if_reached() in unreachable code path. 
This way, we get proper CRITICAL if ever there is a logic error (or in
this case, if we add new values to enums and forget to append them to
switch cases.
This will make these bugs much easier to debug if (when!) they happen.
2018-01-22 11:28:09 +01:00

2046 lines
56 KiB
C
Raw Blame History

/* LIBGIMP - The GIMP Library
* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
*
* gimpcolorselect.c
* Copyright (C) 2002 Michael Natterer <mitch@gimp.org>
*
* based on color_notebook module
* Copyright (C) 1998 Austin Donnelly <austin@greenend.org.uk>
*
* This library is free software: you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 3 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpconfig/gimpconfig.h"
#include "libgimpcolor/gimpcolor.h"
#include "libgimpmath/gimpmath.h"
#include "gimpwidgetstypes.h"
#include "gimpcolorselector.h"
#include "gimpcolorselect.h"
#include "gimphelpui.h"
#include "gimpicons.h"
#include "gimpwidgetsutils.h"
#include "gimp3migration.h"
#include "libgimp/libgimp-intl.h"
/**
* SECTION: gimpcolorselect
* @title: GimpColorSelect
* @short_description: A #GimpColorSelector implementation.
*
* The #GimpColorSelect widget is an implementation of a
* #GimpColorSelector. It shows a square area that supports
* interactively changing two color channels and a smaller area to
* change the third channel. You can select which channel should be
* the third by calling gimp_color_selector_set_channel(). The widget
* will then change the other two channels accordingly.
**/
#define COLOR_AREA_EVENT_MASK (GDK_EXPOSURE_MASK | \
GDK_BUTTON_PRESS_MASK | \
GDK_BUTTON_RELEASE_MASK | \
GDK_BUTTON_MOTION_MASK | \
GDK_ENTER_NOTIFY_MASK)
typedef enum
{
COLOR_SELECT_HUE = 0,
COLOR_SELECT_SATURATION,
COLOR_SELECT_VALUE,
COLOR_SELECT_RED,
COLOR_SELECT_GREEN,
COLOR_SELECT_BLUE,
COLOR_SELECT_ALPHA,
COLOR_SELECT_LCH_LIGHTNESS,
COLOR_SELECT_LCH_CHROMA,
COLOR_SELECT_LCH_HUE,
COLOR_SELECT_HUE_SATURATION,
COLOR_SELECT_HUE_VALUE,
COLOR_SELECT_SATURATION_VALUE,
COLOR_SELECT_RED_GREEN,
COLOR_SELECT_RED_BLUE,
COLOR_SELECT_GREEN_BLUE,
COLOR_SELECT_LCH_HUE_CHROMA,
COLOR_SELECT_LCH_HUE_LIGHTNESS,
COLOR_SELECT_LCH_CHROMA_LIGHTNESS
} ColorSelectFillType;
typedef enum
{
UPDATE_VALUES = 1 << 0,
UPDATE_POS = 1 << 1,
UPDATE_XY_COLOR = 1 << 2,
UPDATE_Z_COLOR = 1 << 3,
UPDATE_CALLER = 1 << 6
} ColorSelectUpdateType;
typedef enum
{
DRAG_NONE,
DRAG_XY,
DRAG_Z
} ColorSelectDragMode;
typedef struct _GimpLCH GimpLCH;
struct _GimpLCH
{
gdouble l, c, h, a;
};
#define GIMP_COLOR_SELECT_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_COLOR_SELECT, GimpColorSelectClass))
#define GIMP_IS_COLOR_SELECT_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_COLOR_SELECT))
#define GIMP_COLOR_SELECT_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_COLOR_SELECT, GimpColorSelectClass))
typedef struct _GimpColorSelectClass GimpColorSelectClass;
struct _GimpColorSelect
{
GimpColorSelector parent_instance;
GtkWidget *toggle_box[3];
GtkWidget *xy_color;
ColorSelectFillType xy_color_fill;
guchar *xy_buf;
gint xy_width;
gint xy_height;
gint xy_rowstride;
gboolean xy_needs_render;
GtkWidget *z_color;
ColorSelectFillType z_color_fill;
guchar *z_buf;
gint z_width;
gint z_height;
gint z_rowstride;
gboolean z_needs_render;
gdouble pos[3];
ColorSelectDragMode drag_mode;
GimpColorConfig *config;
GimpColorTransform *transform;
guchar oog_color[3];
};
struct _GimpColorSelectClass
{
GimpColorSelectorClass parent_class;
};
typedef struct _ColorSelectFill ColorSelectFill;
typedef void (* ColorSelectRenderFunc) (ColorSelectFill *color_select_fill);
struct _ColorSelectFill
{
guchar *buffer;
gint y;
gint width;
gint height;
GimpRGB rgb;
GimpHSV hsv;
GimpLCH lch;
guchar oog_color[3];
ColorSelectRenderFunc render_line;
};
static void gimp_color_select_finalize (GObject *object);
static void gimp_color_select_togg_visible (GimpColorSelector *selector,
gboolean visible);
static void gimp_color_select_togg_sensitive (GimpColorSelector *selector,
gboolean sensitive);
static void gimp_color_select_set_color (GimpColorSelector *selector,
const GimpRGB *rgb,
const GimpHSV *hsv);
static void gimp_color_select_set_channel (GimpColorSelector *selector,
GimpColorSelectorChannel channel);
static void gimp_color_select_set_config (GimpColorSelector *selector,
GimpColorConfig *config);
static void gimp_color_select_channel_toggled (GtkWidget *widget,
GimpColorSelect *select);
static void gimp_color_select_update (GimpColorSelect *select,
ColorSelectUpdateType type);
static void gimp_color_select_update_values (GimpColorSelect *select);
static void gimp_color_select_update_pos (GimpColorSelect *select);
#if 0
static void gimp_color_select_drop_color (GtkWidget *widget,
gint x,
gint y,
const GimpRGB *color,
gpointer data);
#endif
static void gimp_color_select_xy_size_allocate (GtkWidget *widget,
GtkAllocation *allocation,
GimpColorSelect *select);
static gboolean gimp_color_select_xy_expose (GtkWidget *widget,
GdkEventExpose *eevent,
GimpColorSelect *select);
static gboolean gimp_color_select_xy_events (GtkWidget *widget,
GdkEvent *event,
GimpColorSelect *select);
static void gimp_color_select_z_size_allocate (GtkWidget *widget,
GtkAllocation *allocation,
GimpColorSelect *select);
static gboolean gimp_color_select_z_expose (GtkWidget *widget,
GdkEventExpose *eevent,
GimpColorSelect *select);
static gboolean gimp_color_select_z_events (GtkWidget *widget,
GdkEvent *event,
GimpColorSelect *select);
static void gimp_color_select_render (GtkWidget *widget,
guchar *buf,
gint width,
gint height,
gint rowstride,
ColorSelectFillType fill_type,
const GimpHSV *hsv,
const GimpRGB *rgb,
const guchar *oog_color);
static void color_select_render_red (ColorSelectFill *csf);
static void color_select_render_green (ColorSelectFill *csf);
static void color_select_render_blue (ColorSelectFill *csf);
static void color_select_render_hue (ColorSelectFill *csf);
static void color_select_render_saturation (ColorSelectFill *csf);
static void color_select_render_value (ColorSelectFill *csf);
static void color_select_render_lch_lightness (ColorSelectFill *csf);
static void color_select_render_lch_chroma (ColorSelectFill *csf);
static void color_select_render_lch_hue (ColorSelectFill *csf);
static void color_select_render_red_green (ColorSelectFill *csf);
static void color_select_render_red_blue (ColorSelectFill *csf);
static void color_select_render_green_blue (ColorSelectFill *csf);
static void color_select_render_hue_saturation (ColorSelectFill *csf);
static void color_select_render_hue_value (ColorSelectFill *csf);
static void color_select_render_saturation_value (ColorSelectFill *csf);
static void color_select_render_lch_chroma_lightness (ColorSelectFill *csf);
static void color_select_render_lch_hue_lightness (ColorSelectFill *csf);
static void color_select_render_lch_hue_chroma (ColorSelectFill *csf);
static void gimp_color_select_create_transform (GimpColorSelect *select);
static void gimp_color_select_destroy_transform (GimpColorSelect *select);
static void gimp_color_select_notify_config (GimpColorConfig *config,
const GParamSpec *pspec,
GimpColorSelect *select);
static void gimp_color_select_switch_page (GtkNotebook *notebook,
GtkWidget *page,
gint num,
GimpColorSelect *select);
static void gimp_color_select_model_changed (GimpColorSelector *selector,
GimpColorSelectorModel model,
GtkNotebook *color_model_notebook);
G_DEFINE_TYPE (GimpColorSelect, gimp_color_select, GIMP_TYPE_COLOR_SELECTOR)
#define parent_class gimp_color_select_parent_class
static const ColorSelectRenderFunc render_funcs[] =
{
color_select_render_hue,
color_select_render_saturation,
color_select_render_value,
color_select_render_red,
color_select_render_green,
color_select_render_blue,
NULL, /* alpha */
color_select_render_lch_lightness,
color_select_render_lch_chroma,
color_select_render_lch_hue,
color_select_render_hue_saturation,
color_select_render_hue_value,
color_select_render_saturation_value,
color_select_render_red_green,
color_select_render_red_blue,
color_select_render_green_blue,
color_select_render_lch_hue_chroma,
color_select_render_lch_hue_lightness,
color_select_render_lch_chroma_lightness
};
static const Babl *fish_rgb_to_lch = NULL;
static const Babl *fish_lch_to_rgb = NULL;
static const Babl *fish_lch_to_rgb_u8 = NULL;
static void
gimp_color_select_class_init (GimpColorSelectClass *klass)
{
GObjectClass *object_class = G_OBJECT_CLASS (klass);
GimpColorSelectorClass *selector_class = GIMP_COLOR_SELECTOR_CLASS (klass);
object_class->finalize = gimp_color_select_finalize;
selector_class->name = "GIMP";
selector_class->help_id = "gimp-colorselector-gimp";
selector_class->icon_name = GIMP_ICON_WILBER;
selector_class->set_toggles_visible = gimp_color_select_togg_visible;
selector_class->set_toggles_sensitive = gimp_color_select_togg_sensitive;
selector_class->set_color = gimp_color_select_set_color;
selector_class->set_channel = gimp_color_select_set_channel;
selector_class->set_config = gimp_color_select_set_config;
fish_rgb_to_lch = babl_fish (babl_format ("R'G'B'A double"),
babl_format ("CIE LCH(ab) double"));
fish_lch_to_rgb = babl_fish (babl_format ("CIE LCH(ab) double"),
babl_format ("R'G'B' double"));
fish_lch_to_rgb_u8 = babl_fish (babl_format ("CIE LCH(ab) double"),
babl_format ("R'G'B' u8"));
}
static void
gimp_color_select_init (GimpColorSelect *select)
{
GimpColorSelector *selector = GIMP_COLOR_SELECTOR (select);
GtkWidget *hbox;
GtkWidget *frame;
GtkWidget *notebook;
GEnumClass *model_class;
GEnumClass *channel_class;
GimpEnumDesc *enum_desc;
GimpColorSelectorModel model;
/* Default values. */
select->z_color_fill = COLOR_SELECT_HUE;
select->xy_color_fill = COLOR_SELECT_SATURATION_VALUE;
select->drag_mode = DRAG_NONE;
hbox = gtk_box_new (GTK_ORIENTATION_HORIZONTAL, 4);
gtk_box_pack_start (GTK_BOX (select), hbox, TRUE, TRUE, 0);
gtk_widget_show (hbox);
/* The x/y component preview */
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (hbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
select->xy_color = gtk_event_box_new ();
gtk_event_box_set_visible_window (GTK_EVENT_BOX (select->xy_color), FALSE);
g_object_add_weak_pointer (G_OBJECT (select->xy_color),
(gpointer) &select->xy_color);
gtk_widget_set_size_request (select->xy_color,
GIMP_COLOR_SELECTOR_SIZE,
GIMP_COLOR_SELECTOR_SIZE);
gtk_widget_set_events (select->xy_color, COLOR_AREA_EVENT_MASK);
gtk_container_add (GTK_CONTAINER (frame), select->xy_color);
gtk_widget_show (select->xy_color);
g_signal_connect (select->xy_color, "size-allocate",
G_CALLBACK (gimp_color_select_xy_size_allocate),
select);
g_signal_connect_after (select->xy_color, "expose-event",
G_CALLBACK (gimp_color_select_xy_expose),
select);
g_signal_connect (select->xy_color, "event",
G_CALLBACK (gimp_color_select_xy_events),
select);
#if 0
gimp_dnd_color_dest_add (select->xy_color, gimp_color_select_drop_color,
select);
#endif
/* The z component preview */
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_box_pack_start (GTK_BOX (hbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
select->z_color = gtk_event_box_new ();
gtk_event_box_set_visible_window (GTK_EVENT_BOX (select->z_color), FALSE);
g_object_add_weak_pointer (G_OBJECT (select->z_color),
(gpointer) &select->z_color);
gtk_widget_set_size_request (select->z_color,
GIMP_COLOR_SELECTOR_BAR_SIZE, -1);
gtk_widget_set_events (select->z_color, COLOR_AREA_EVENT_MASK);
gtk_container_add (GTK_CONTAINER (frame), select->z_color);
gtk_widget_show (select->z_color);
g_signal_connect (select->z_color, "size-allocate",
G_CALLBACK (gimp_color_select_z_size_allocate),
select);
g_signal_connect_after (select->z_color, "expose-event",
G_CALLBACK (gimp_color_select_z_expose),
select);
g_signal_connect (select->z_color, "event",
G_CALLBACK (gimp_color_select_z_events),
select);
notebook = gtk_notebook_new ();
gtk_notebook_set_tab_pos (GTK_NOTEBOOK (notebook), GTK_POS_RIGHT);
gtk_widget_show (notebook);
gtk_box_pack_start (GTK_BOX (hbox), notebook, FALSE, FALSE, 0);
model_class = g_type_class_ref (GIMP_TYPE_COLOR_SELECTOR_MODEL);
channel_class = g_type_class_ref (GIMP_TYPE_COLOR_SELECTOR_CHANNEL);
for (model = GIMP_COLOR_SELECTOR_RGB;
model <= GIMP_COLOR_SELECTOR_HSV;
model++)
{
GtkWidget *label;
enum_desc = gimp_enum_get_desc (model_class, model);
select->toggle_box[model] = gtk_box_new (GTK_ORIENTATION_VERTICAL, 2);
gtk_widget_show (select->toggle_box[model]);
label = gtk_label_new (gettext (enum_desc->value_desc));
gtk_label_set_angle (GTK_LABEL (label), 270.0);
gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
select->toggle_box[model],
label);
gimp_help_set_help_data (gtk_notebook_get_tab_label (GTK_NOTEBOOK (notebook),
select->toggle_box[model]),
gettext (enum_desc->value_help), NULL);
/* channel toggles */
{
GimpColorSelectorChannel channel = GIMP_COLOR_SELECTOR_RED;
GimpColorSelectorChannel end_channel;
GSList *group = NULL;
switch (model)
{
case GIMP_COLOR_SELECTOR_RGB:
channel = GIMP_COLOR_SELECTOR_RED;
break;
case GIMP_COLOR_SELECTOR_LCH:
channel = GIMP_COLOR_SELECTOR_LCH_LIGHTNESS;
break;
case GIMP_COLOR_SELECTOR_HSV:
channel = GIMP_COLOR_SELECTOR_HUE;
break;
default:
/* Should not happen. */
g_return_if_reached ();
break;
}
end_channel = channel + 3;
for (; channel < end_channel; channel++)
{
GtkWidget *button;
enum_desc = gimp_enum_get_desc (channel_class, channel);
button = gtk_radio_button_new_with_mnemonic (group,
gettext (enum_desc->value_desc));
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (button), FALSE);
gtk_box_pack_start (GTK_BOX (select->toggle_box[model]), button,
TRUE, TRUE, 0);
gtk_widget_show (button);
g_object_set_data (G_OBJECT (button), "channel",
GINT_TO_POINTER (channel));
if (channel == gimp_color_selector_get_channel (selector))
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
gimp_help_set_help_data (button, gettext (enum_desc->value_help), NULL);
g_signal_connect (button, "toggled",
G_CALLBACK (gimp_color_select_channel_toggled),
select);
}
}
}
g_type_class_unref (model_class);
g_type_class_unref (channel_class);
gtk_notebook_set_current_page (GTK_NOTEBOOK (notebook),
(gint) gimp_color_selector_get_model (selector));
g_signal_connect (notebook, "switch-page",
G_CALLBACK (gimp_color_select_switch_page),
select);
g_signal_connect (select, "model-changed",
G_CALLBACK (gimp_color_select_model_changed),
notebook);
}
static void
gimp_color_select_finalize (GObject *object)
{
GimpColorSelect *select = GIMP_COLOR_SELECT (object);
g_clear_pointer (&select->xy_buf, g_free);
select->xy_width = 0;
select->xy_height = 0;
select->xy_rowstride = 0;
g_clear_pointer (&select->z_buf, g_free);
select->z_width = 0;
select->z_height = 0;
select->z_rowstride = 0;
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_color_select_togg_visible (GimpColorSelector *selector,
gboolean visible)
{
GimpColorSelect *select = GIMP_COLOR_SELECT (selector);
gint i;
for (i = 0; i < 3; i++)
{
gtk_widget_set_visible (select->toggle_box[i], visible);
}
}
static void
gimp_color_select_togg_sensitive (GimpColorSelector *selector,
gboolean sensitive)
{
GimpColorSelect *select = GIMP_COLOR_SELECT (selector);
gint i;
for (i = 0; i < 3; i++)
{
gtk_widget_set_sensitive (select->toggle_box[i], sensitive);
}
}
static void
gimp_color_select_set_color (GimpColorSelector *selector,
const GimpRGB *rgb,
const GimpHSV *hsv)
{
GimpColorSelect *select = GIMP_COLOR_SELECT (selector);
gimp_color_select_update (select,
UPDATE_POS | UPDATE_XY_COLOR | UPDATE_Z_COLOR);
}
static void
gimp_color_select_set_channel (GimpColorSelector *selector,
GimpColorSelectorChannel channel)
{
GimpColorSelect *select = GIMP_COLOR_SELECT (selector);
switch ((ColorSelectFillType) channel)
{
case COLOR_SELECT_HUE:
select->z_color_fill = COLOR_SELECT_HUE;
select->xy_color_fill = COLOR_SELECT_SATURATION_VALUE;
break;
case COLOR_SELECT_SATURATION:
select->z_color_fill = COLOR_SELECT_SATURATION;
select->xy_color_fill = COLOR_SELECT_HUE_VALUE;
break;
case COLOR_SELECT_VALUE:
select->z_color_fill = COLOR_SELECT_VALUE;
select->xy_color_fill = COLOR_SELECT_HUE_SATURATION;
break;
case COLOR_SELECT_RED:
select->z_color_fill = COLOR_SELECT_RED;
select->xy_color_fill = COLOR_SELECT_GREEN_BLUE;
break;
case COLOR_SELECT_GREEN:
select->z_color_fill = COLOR_SELECT_GREEN;
select->xy_color_fill = COLOR_SELECT_RED_BLUE;
break;
case COLOR_SELECT_BLUE:
select->z_color_fill = COLOR_SELECT_BLUE;
select->xy_color_fill = COLOR_SELECT_RED_GREEN;
break;
case COLOR_SELECT_LCH_LIGHTNESS:
select->z_color_fill = COLOR_SELECT_LCH_LIGHTNESS;
select->xy_color_fill = COLOR_SELECT_LCH_HUE_CHROMA;
break;
case COLOR_SELECT_LCH_CHROMA:
select->z_color_fill = COLOR_SELECT_LCH_CHROMA;
select->xy_color_fill = COLOR_SELECT_LCH_HUE_LIGHTNESS;
break;
case COLOR_SELECT_LCH_HUE:
select->z_color_fill = COLOR_SELECT_LCH_HUE;
select->xy_color_fill = COLOR_SELECT_LCH_CHROMA_LIGHTNESS;
break;
default:
break;
}
gimp_color_select_update (select,
UPDATE_POS | UPDATE_Z_COLOR | UPDATE_XY_COLOR);
}
static void
gimp_color_select_set_config (GimpColorSelector *selector,
GimpColorConfig *config)
{
GimpColorSelect *select = GIMP_COLOR_SELECT (selector);
if (config != select->config)
{
if (select->config)
{
g_signal_handlers_disconnect_by_func (select->config,
gimp_color_select_notify_config,
select);
g_object_unref (select->config);
gimp_color_select_destroy_transform (select);
}
select->config = config;
if (select->config)
{
g_object_ref (select->config);
g_signal_connect (select->config, "notify",
G_CALLBACK (gimp_color_select_notify_config),
select);
gimp_color_select_notify_config (select->config, NULL, select);
}
}
}
static void
gimp_color_select_channel_toggled (GtkWidget *widget,
GimpColorSelect *select)
{
if (gtk_toggle_button_get_active (GTK_TOGGLE_BUTTON (widget)))
{
GimpColorSelector *selector = GIMP_COLOR_SELECTOR (select);
GimpColorSelectorChannel channel;
channel = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"channel"));
gimp_color_selector_set_channel (selector, channel);
}
}
static void
gimp_color_select_update (GimpColorSelect *select,
ColorSelectUpdateType update)
{
if (update & UPDATE_POS)
gimp_color_select_update_pos (select);
if (update & UPDATE_VALUES)
gimp_color_select_update_values (select);
if (update & UPDATE_XY_COLOR)
{
select->xy_needs_render = TRUE;
gtk_widget_queue_draw (select->xy_color);
}
if (update & UPDATE_Z_COLOR)
{
select->z_needs_render = TRUE;
gtk_widget_queue_draw (select->z_color);
}
if (update & UPDATE_CALLER)
gimp_color_selector_color_changed (GIMP_COLOR_SELECTOR (select));
}
static void
gimp_color_select_update_values (GimpColorSelect *select)
{
GimpColorSelector *selector = GIMP_COLOR_SELECTOR (select);
GimpLCH lch;
switch (select->z_color_fill)
{
case COLOR_SELECT_RED:
selector->rgb.g = select->pos[0];
selector->rgb.b = select->pos[1];
selector->rgb.r = select->pos[2];
break;
case COLOR_SELECT_GREEN:
selector->rgb.r = select->pos[0];
selector->rgb.b = select->pos[1];
selector->rgb.g = select->pos[2];
break;
case COLOR_SELECT_BLUE:
selector->rgb.r = select->pos[0];
selector->rgb.g = select->pos[1];
selector->rgb.b = select->pos[2];
break;
case COLOR_SELECT_HUE:
selector->hsv.s = select->pos[0];
selector->hsv.v = select->pos[1];
selector->hsv.h = select->pos[2];
break;
case COLOR_SELECT_SATURATION:
selector->hsv.h = select->pos[0];
selector->hsv.v = select->pos[1];
selector->hsv.s = select->pos[2];
break;
case COLOR_SELECT_VALUE:
selector->hsv.h = select->pos[0];
selector->hsv.s = select->pos[1];
selector->hsv.v = select->pos[2];
break;
case COLOR_SELECT_LCH_LIGHTNESS:
lch.h = select->pos[0] * 360;
lch.c = select->pos[1] * 200;
lch.l = select->pos[2] * 100;
break;
case COLOR_SELECT_LCH_CHROMA:
lch.h = select->pos[0] * 360;
lch.l = select->pos[1] * 100;
lch.c = select->pos[2] * 200;
break;
case COLOR_SELECT_LCH_HUE:
lch.c = select->pos[0] * 200;
lch.l = select->pos[1] * 100;
lch.h = select->pos[2] * 360;
break;
default:
break;
}
switch (select->z_color_fill)
{
case COLOR_SELECT_RED:
case COLOR_SELECT_GREEN:
case COLOR_SELECT_BLUE:
gimp_rgb_to_hsv (&selector->rgb, &selector->hsv);
break;
case COLOR_SELECT_HUE:
case COLOR_SELECT_SATURATION:
case COLOR_SELECT_VALUE:
gimp_hsv_to_rgb (&selector->hsv, &selector->rgb);
break;
case COLOR_SELECT_LCH_LIGHTNESS:
case COLOR_SELECT_LCH_CHROMA:
case COLOR_SELECT_LCH_HUE:
babl_process (fish_lch_to_rgb, &lch, &selector->rgb, 1);
gimp_rgb_to_hsv (&selector->rgb, &selector->hsv);
break;
default:
break;
}
}
static void
gimp_color_select_update_pos (GimpColorSelect *select)
{
GimpColorSelector *selector = GIMP_COLOR_SELECTOR (select);
GimpLCH lch;
babl_process (fish_rgb_to_lch, &selector->rgb, &lch, 1);
switch (select->z_color_fill)
{
case COLOR_SELECT_RED:
select->pos[0] = CLAMP (selector->rgb.g, 0.0, 1.0);
select->pos[1] = CLAMP (selector->rgb.b, 0.0, 1.0);
select->pos[2] = CLAMP (selector->rgb.r, 0.0, 1.0);
break;
case COLOR_SELECT_GREEN:
select->pos[0] = CLAMP (selector->rgb.r, 0.0, 1.0);
select->pos[1] = CLAMP (selector->rgb.b, 0.0, 1.0);
select->pos[2] = CLAMP (selector->rgb.g, 0.0, 1.0);
break;
case COLOR_SELECT_BLUE:
select->pos[0] = CLAMP (selector->rgb.r, 0.0, 1.0);
select->pos[1] = CLAMP (selector->rgb.g, 0.0, 1.0);
select->pos[2] = CLAMP (selector->rgb.b, 0.0, 1.0);
break;
case COLOR_SELECT_HUE:
select->pos[0] = CLAMP (selector->hsv.s, 0.0, 1.0);
select->pos[1] = CLAMP (selector->hsv.v, 0.0, 1.0);
select->pos[2] = CLAMP (selector->hsv.h, 0.0, 1.0);
break;
case COLOR_SELECT_SATURATION:
select->pos[0] = CLAMP (selector->hsv.h, 0.0, 1.0);
select->pos[1] = CLAMP (selector->hsv.v, 0.0, 1.0);
select->pos[2] = CLAMP (selector->hsv.s, 0.0, 1.0);
break;
case COLOR_SELECT_VALUE:
select->pos[0] = CLAMP (selector->hsv.h, 0.0, 1.0);
select->pos[1] = CLAMP (selector->hsv.s, 0.0, 1.0);
select->pos[2] = CLAMP (selector->hsv.v, 0.0, 1.0);
break;
case COLOR_SELECT_LCH_LIGHTNESS:
select->pos[0] = CLAMP (lch.h / 360, 0.0, 1.0);
select->pos[1] = CLAMP (lch.c / 200, 0.0, 1.0);
select->pos[2] = CLAMP (lch.l / 100, 0.0, 1.0);
break;
case COLOR_SELECT_LCH_CHROMA:
select->pos[0] = CLAMP (lch.h / 360, 0.0, 1.0);
select->pos[1] = CLAMP (lch.l / 100, 0.0, 1.0);
select->pos[2] = CLAMP (lch.c / 200, 0.0, 1.0);
break;
case COLOR_SELECT_LCH_HUE:
select->pos[0] = CLAMP (lch.c / 200, 0.0, 1.0);
select->pos[1] = CLAMP (lch.l / 100, 0.0, 1.0);
select->pos[2] = CLAMP (lch.h / 360, 0.0, 1.0);
break;
default:
break;
}
}
#if 0
static void
gimp_color_select_drop_color (GtkWidget *widget,
gint x,
gint y,
const GimpRGB *color,
gpointer data)
{
GimpColorSelect *select = GIMP_COLOR_SELECT (data);
select->rgb = *color;
gimp_color_select_update_hsv_values (select);
gimp_color_select_update_lch_values (select);
gimp_color_select_update (select,
UPDATE_POS | UPDATE_XY_COLOR | UPDATE_Z_COLOR |
UPDATE_CALLER);
}
#endif
static void
gimp_color_select_xy_size_allocate (GtkWidget *widget,
GtkAllocation *allocation,
GimpColorSelect *select)
{
if (allocation->width != select->xy_width ||
allocation->height != select->xy_height)
{
select->xy_width = allocation->width;
select->xy_height = allocation->height;
select->xy_rowstride = (select->xy_width * 3 + 3) & ~3;
g_free (select->xy_buf);
select->xy_buf = g_new (guchar, select->xy_rowstride * select->xy_height);
select->xy_needs_render = TRUE;
}
gimp_color_select_update (select, UPDATE_XY_COLOR);
}
static gboolean
gimp_color_select_xy_expose (GtkWidget *widget,
GdkEventExpose *event,
GimpColorSelect *select)
{
GtkAllocation allocation;
cairo_t *cr;
GdkPixbuf *pixbuf;
gint x, y;
if (! select->xy_buf)
return FALSE;
if (select->xy_needs_render)
{
GimpColorSelector *selector = GIMP_COLOR_SELECTOR (select);
gimp_color_select_render (select->xy_color,
select->xy_buf,
select->xy_width,
select->xy_height,
select->xy_rowstride,
select->xy_color_fill,
&selector->hsv,
&selector->rgb,
select->oog_color);
select->xy_needs_render = FALSE;
}
if (! select->transform)
gimp_color_select_create_transform (select);
if (select->transform)
{
const Babl *format = babl_format ("R'G'B' u8");
guchar *buf = g_new (guchar,
select->xy_rowstride * select->xy_height);
guchar *src = select->xy_buf;
guchar *dest = buf;
gint i;
for (i = 0; i < select->xy_height; i++)
{
gimp_color_transform_process_pixels (select->transform,
format, src,
format, dest,
select->xy_width);
src += select->xy_rowstride;
dest += select->xy_rowstride;
}
pixbuf = gdk_pixbuf_new_from_data (buf,
GDK_COLORSPACE_RGB,
FALSE,
8,
select->xy_width,
select->xy_height,
select->xy_rowstride,
(GdkPixbufDestroyNotify) g_free, NULL);
}
else
{
pixbuf = gdk_pixbuf_new_from_data (select->xy_buf,
GDK_COLORSPACE_RGB,
FALSE,
8,
select->xy_width,
select->xy_height,
select->xy_rowstride,
NULL, NULL);
}
gtk_widget_get_allocation (select->xy_color, &allocation);
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
cairo_translate (cr, allocation.x, allocation.y);
gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
g_object_unref (pixbuf);
cairo_paint (cr);
x = (allocation.width - 1) * select->pos[0];
y = (allocation.height - 1) - (allocation.height - 1) * select->pos[1];
cairo_move_to (cr, 0, y + 0.5);
cairo_line_to (cr, allocation.width, y + 0.5);
cairo_move_to (cr, x + 0.5, 0);
cairo_line_to (cr, x + 0.5, allocation.height);
cairo_set_line_width (cr, 3.0);
cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.6);
cairo_stroke_preserve (cr);
cairo_set_line_width (cr, 1.0);
cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.8);
cairo_stroke (cr);
cairo_destroy (cr);
return TRUE;
}
static gboolean
gimp_color_select_xy_events (GtkWidget *widget,
GdkEvent *event,
GimpColorSelect *select)
{
GtkAllocation allocation;
gdouble x, y;
switch (event->type)
{
case GDK_BUTTON_PRESS:
{
GdkEventButton *bevent = (GdkEventButton *) event;
if (select->drag_mode != DRAG_NONE || bevent->button != 1)
return FALSE;
x = bevent->x;
y = bevent->y;
gtk_grab_add (widget);
select->drag_mode = DRAG_XY;
}
break;
case GDK_BUTTON_RELEASE:
{
GdkEventButton *bevent = (GdkEventButton *) event;
if (select->drag_mode != DRAG_XY || bevent->button != 1)
return FALSE;
x = bevent->x;
y = bevent->y;
gtk_grab_remove (widget);
select->drag_mode = DRAG_NONE;
}
break;
case GDK_MOTION_NOTIFY:
{
GdkEventMotion *mevent = (GdkEventMotion *) event;
if (select->drag_mode != DRAG_XY)
return FALSE;
x = mevent->x;
y = mevent->y;
}
break;
default:
return FALSE;
}
gtk_widget_get_allocation (select->xy_color, &allocation);
if (allocation.width > 1 && allocation.height > 1)
{
select->pos[0] = x / (allocation.width - 1);
select->pos[1] = 1.0 - y / (allocation.height - 1);
}
select->pos[0] = CLAMP (select->pos[0], 0.0, 1.0);
select->pos[1] = CLAMP (select->pos[1], 0.0, 1.0);
gtk_widget_queue_draw (select->xy_color);
gimp_color_select_update (select, UPDATE_VALUES | UPDATE_CALLER);
/* Ask for more motion events in case the event was a hint */
gdk_event_request_motions ((GdkEventMotion *) event);
return TRUE;
}
static void
gimp_color_select_z_size_allocate (GtkWidget *widget,
GtkAllocation *allocation,
GimpColorSelect *select)
{
if (allocation->width != select->z_width ||
allocation->height != select->z_height)
{
select->z_width = allocation->width;
select->z_height = allocation->height;
select->z_rowstride = (select->z_width * 3 + 3) & ~3;
g_free (select->z_buf);
select->z_buf = g_new (guchar, select->z_rowstride * select->z_height);
select->z_needs_render = TRUE;
}
gimp_color_select_update (select, UPDATE_Z_COLOR);
}
static gboolean
gimp_color_select_z_expose (GtkWidget *widget,
GdkEventExpose *event,
GimpColorSelect *select)
{
GtkAllocation allocation;
cairo_t *cr;
GdkPixbuf *pixbuf;
gint y;
if (! select->z_buf)
return FALSE;
if (select->z_needs_render)
{
GimpColorSelector *selector = GIMP_COLOR_SELECTOR (select);
gimp_color_select_render (select->z_color,
select->z_buf,
select->z_width,
select->z_height,
select->z_rowstride,
select->z_color_fill,
&selector->hsv,
&selector->rgb,
select->oog_color);
select->z_needs_render = FALSE;
}
gtk_widget_get_allocation (widget, &allocation);
cr = gdk_cairo_create (gtk_widget_get_window (widget));
gdk_cairo_region (cr, event->region);
cairo_clip (cr);
if (! select->transform)
gimp_color_select_create_transform (select);
if (select->transform)
{
const Babl *format = babl_format ("R'G'B' u8");
guchar *buf = g_new (guchar,
select->z_rowstride * select->z_height);
guchar *src = select->z_buf;
guchar *dest = buf;
gint i;
for (i = 0; i < select->z_height; i++)
{
gimp_color_transform_process_pixels (select->transform,
format, src,
format, dest,
select->z_width);
src += select->z_rowstride;
dest += select->z_rowstride;
}
pixbuf = gdk_pixbuf_new_from_data (buf,
GDK_COLORSPACE_RGB,
FALSE,
8,
select->z_width,
select->z_height,
select->z_rowstride,
(GdkPixbufDestroyNotify) g_free, NULL);
}
else
{
pixbuf = gdk_pixbuf_new_from_data (select->z_buf,
GDK_COLORSPACE_RGB,
FALSE,
8,
select->z_width,
select->z_height,
select->z_rowstride,
NULL, NULL);
}
cairo_translate (cr, allocation.x, allocation.y);
gdk_cairo_set_source_pixbuf (cr, pixbuf, 0, 0);
g_object_unref (pixbuf);
cairo_paint (cr);
y = (allocation.height - 1) - (allocation.height - 1) * select->pos[2];
cairo_move_to (cr, 0, y + 0.5);
cairo_line_to (cr, allocation.width, y + 0.5);
cairo_set_line_width (cr, 3.0);
cairo_set_source_rgba (cr, 1.0, 1.0, 1.0, 0.6);
cairo_stroke_preserve (cr);
cairo_set_line_width (cr, 1.0);
cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 0.8);
cairo_stroke (cr);
cairo_destroy (cr);
return TRUE;
}
static gboolean
gimp_color_select_z_events (GtkWidget *widget,
GdkEvent *event,
GimpColorSelect *select)
{
GtkAllocation allocation;
gdouble z;
switch (event->type)
{
case GDK_BUTTON_PRESS:
{
GdkEventButton *bevent = (GdkEventButton *) event;
if (select->drag_mode != DRAG_NONE || bevent->button != 1)
return FALSE;
z = bevent->y;
gtk_grab_add (widget);
select->drag_mode = DRAG_Z;
}
break;
case GDK_BUTTON_RELEASE:
{
GdkEventButton *bevent = (GdkEventButton *) event;
if (select->drag_mode != DRAG_Z || bevent->button != 1)
return FALSE;
z = bevent->y;
gtk_grab_remove (widget);
select->drag_mode = DRAG_NONE;
}
break;
case GDK_MOTION_NOTIFY:
{
GdkEventMotion *mevent = (GdkEventMotion *) event;
if (select->drag_mode != DRAG_Z)
return FALSE;
z = mevent->y;
}
break;
default:
return FALSE;
}
gtk_widget_get_allocation (select->z_color, &allocation);
if (allocation.height > 1)
select->pos[2] = 1.0 - z / (allocation.height - 1);
select->pos[2] = CLAMP (select->pos[2], 0.0, 1.0);
gtk_widget_queue_draw (select->z_color);
gimp_color_select_update (select,
UPDATE_VALUES | UPDATE_XY_COLOR | UPDATE_CALLER);
/* Ask for more motion events in case the event was a hint */
gdk_event_request_motions ((GdkEventMotion *) event);
return TRUE;
}
static void
gimp_color_select_render (GtkWidget *preview,
guchar *buf,
gint width,
gint height,
gint rowstride,
ColorSelectFillType fill_type,
const GimpHSV *hsv,
const GimpRGB *rgb,
const guchar *oog_color)
{
ColorSelectFill csf;
csf.width = width;
csf.height = height;
csf.hsv = *hsv;
csf.rgb = *rgb;
csf.render_line = render_funcs[fill_type];
csf.oog_color[0] = oog_color[0];
csf.oog_color[1] = oog_color[1];
csf.oog_color[2] = oog_color[2];
babl_process (fish_rgb_to_lch, rgb, &csf.lch, 1);
for (csf.y = 0; csf.y < csf.height; csf.y++)
{
csf.buffer = buf;
csf.render_line (&csf);
buf += rowstride;
}
}
static void
color_select_render_red (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
gint i, r;
r = (csf->height - csf->y + 1) * 255 / csf->height;
r = CLAMP (r, 0, 255);
for (i = 0; i < csf->width; i++)
{
*p++ = r;
*p++ = 0;
*p++ = 0;
}
}
static void
color_select_render_green (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
gint i, g;
g = (csf->height - csf->y + 1) * 255 / csf->height;
g = CLAMP (g, 0, 255);
for (i = 0; i < csf->width; i++)
{
*p++ = 0;
*p++ = g;
*p++ = 0;
}
}
static void
color_select_render_blue (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
gint i, b;
b = (csf->height - csf->y + 1) * 255 / csf->height;
b = CLAMP (b, 0, 255);
for (i = 0; i < csf->width; i++)
{
*p++ = 0;
*p++ = 0;
*p++ = b;
}
}
static void
color_select_render_hue (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
gfloat h, f;
gint r, g, b;
gint i;
h = csf->y * 360.0 / csf->height;
h = CLAMP (360 - h, 0, 360);
h /= 60;
f = (h - (int) h) * 255;
r = g = b = 0;
switch ((int) h)
{
case 0:
r = 255;
g = f;
b = 0;
break;
case 1:
r = 255 - f;
g = 255;
b = 0;
break;
case 2:
r = 0;
g = 255;
b = f;
break;
case 3:
r = 0;
g = 255 - f;
b = 255;
break;
case 4:
r = f;
g = 0;
b = 255;
break;
case 5:
r = 255;
g = 0;
b = 255 - f;
break;
}
for (i = 0; i < csf->width; i++)
{
*p++ = r;
*p++ = g;
*p++ = b;
}
}
static void
color_select_render_saturation (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
gint s;
gint i;
s = csf->y * 255 / csf->height;
s = CLAMP (s, 0, 255);
s = 255 - s;
for (i = 0; i < csf->width; i++)
{
*p++ = s;
*p++ = s;
*p++ = s;
}
}
static void
color_select_render_value (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
gint v;
gint i;
v = csf->y * 255 / csf->height;
v = CLAMP (v, 0, 255);
v = 255 - v;
for (i = 0; i < csf->width; i++)
{
*p++ = v;
*p++ = v;
*p++ = v;
}
}
static void
color_select_render_lch_lightness (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
GimpLCH lch = { 0.0, 0.0, 0.0, 1.0 };
guchar rgb[3];
gint i;
lch.l = (csf->height - 1 - csf->y) * 100.0 / csf->height;
babl_process (fish_lch_to_rgb_u8, &lch, &rgb, 1);
for (i = 0; i < csf->width; i++)
{
*p++ = rgb[0];
*p++ = rgb[1];
*p++ = rgb[2];
}
}
static void
color_select_render_lch_chroma (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
GimpLCH lch = { 80.0, 0.0, 0.0, 1.0 };
guchar rgb[3];
gint i;
lch.c = (csf->height - 1 - csf->y) * 200.0 / csf->height ;
babl_process (fish_lch_to_rgb_u8, &lch, &rgb, 1);
for (i = 0; i < csf->width; i++)
{
*p++ = rgb[0];
*p++ = rgb[1];
*p++ = rgb[2];
}
}
static void
color_select_render_lch_hue (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
GimpLCH lch = { 80.0, 200.0, 0.0, 1.0 };
guchar rgb[3];
gint i;
lch.h = (csf->height - 1 - csf->y) * 360.0 / csf->height;
babl_process (fish_lch_to_rgb_u8, &lch, &rgb, 1);
for (i = 0; i < csf->width; i++)
{
*p++ = rgb[0];
*p++ = rgb[1];
*p++ = rgb[2];
}
}
static void
color_select_render_red_green (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
gfloat r = 0;
gfloat g = 0;
gfloat b = 0;
gfloat dr = 0;
gint i;
b = csf->rgb.b * 255.0;
if (b < 0.0 || b > 255.0)
{
r = csf->oog_color[0];
g = csf->oog_color[1];
b = csf->oog_color[2];
}
else
{
g = (csf->height - csf->y + 1) * 255.0 / csf->height;
dr = 255.0 / csf->width;
}
for (i = 0; i < csf->width; i++)
{
*p++ = r;
*p++ = g;
*p++ = b;
r += dr;
}
}
static void
color_select_render_red_blue (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
gfloat r = 0;
gfloat g = 0;
gfloat b = 0;
gfloat dr = 0;
gint i;
g = csf->rgb.g * 255.0;
if (g < 0.0 || g > 255.0)
{
r = csf->oog_color[0];
g = csf->oog_color[1];
b = csf->oog_color[2];
}
else
{
b = (csf->height - csf->y + 1) * 255.0 / csf->height;
dr = 255.0 / csf->width;
}
for (i = 0; i < csf->width; i++)
{
*p++ = r;
*p++ = g;
*p++ = b;
r += dr;
}
}
static void
color_select_render_green_blue (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
gfloat r = 0;
gfloat g = 0;
gfloat b = 0;
gfloat dg = 0;
gint i;
r = csf->rgb.r * 255.0;
if (r < 0.0 || r > 255.0)
{
r = csf->oog_color[0];
g = csf->oog_color[1];
b = csf->oog_color[2];
}
else
{
b = (csf->height - csf->y + 1) * 255.0 / csf->height;
dg = 255.0 / csf->width;
}
for (i = 0; i < csf->width; i++)
{
*p++ = r;
*p++ = g;
*p++ = b;
g += dg;
}
}
static void
color_select_render_hue_saturation (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
gfloat h, dh, s, v;
gint f;
gint i;
v = csf->hsv.v;
s = (gfloat) csf->y / csf->height;
s = CLAMP (s, 0.0, 1.0);
s = 1.0 - s;
h = 0;
dh = 360.0 / csf->width;
for (i = 0; i < csf->width; i++)
{
gfloat r, g, b;
f = ((h / 60) - (int) (h / 60)) * 255;
switch ((int) (h / 60))
{
default:
case 0:
r = v * 255;
g = v * (255 - (s * (255 - f)));
b = v * 255 * (1 - s);
break;
case 1:
r = v * (255 - s * f);
g = v * 255;
b = v * 255 * (1 - s);
break;
case 2:
r = v * 255 * (1 - s);
g = v *255;
b = v * (255 - (s * (255 - f)));
break;
case 3:
r = v * 255 * (1 - s);
g = v * (255 - s * f);
b = v * 255;
break;
case 4:
r = v * (255 - (s * (255 - f)));
g = v * (255 * (1 - s));
b = v * 255;
break;
case 5:
r = v * 255;
g = v * 255 * (1 - s);
b = v * (255 - s * f);
break;
}
if (r < 0.0 || r > 255.0 ||
g < 0.0 || g > 255.0 ||
b < 0.0 || b > 255.0)
{
*p++ = csf->oog_color[0];
*p++ = csf->oog_color[1];
*p++ = csf->oog_color[2];
}
else
{
*p++ = r;
*p++ = g;
*p++ = b;
}
h += dh;
}
}
static void
color_select_render_hue_value (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
gfloat h, dh, s, v;
gint f;
gint i;
s = csf->hsv.s;
v = (gfloat) csf->y / csf->height;
v = CLAMP (v, 0.0, 1.0);
v = 1.0 - v;
h = 0;
dh = 360.0 / csf->width;
for (i = 0; i < csf->width; i++)
{
gfloat r, g, b;
f = ((h / 60) - (int) (h / 60)) * 255;
switch ((int) (h / 60))
{
default:
case 0:
r = v * 255;
g = v * (255 - (s * (255 - f)));
b = v * 255 * (1 - s);
break;
case 1:
r = v * (255 - s * f);
g = v * 255;
b = v * 255 * (1 - s);
break;
case 2:
r = v * 255 * (1 - s);
g = v *255;
b = v * (255 - (s * (255 - f)));
break;
case 3:
r = v * 255 * (1 - s);
g = v * (255 - s * f);
b = v * 255;
break;
case 4:
r = v * (255 - (s * (255 - f)));
g = v * (255 * (1 - s));
b = v * 255;
break;
case 5:
r = v * 255;
g = v * 255 * (1 - s);
b = v * (255 - s * f);
break;
}
if (r < 0.0 || r > 255.0 ||
g < 0.0 || g > 255.0 ||
b < 0.0 || b > 255.0)
{
*p++ = csf->oog_color[0];
*p++ = csf->oog_color[1];
*p++ = csf->oog_color[2];
}
else
{
*p++ = r;
*p++ = g;
*p++ = b;
}
h += dh;
}
}
static void
color_select_render_saturation_value (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
gfloat h, s, ds, v;
gint f;
gint i;
h = (gfloat) csf->hsv.h * 360.0;
if (h >= 360)
h -= 360;
h /= 60;
f = (h - (gint) h) * 255;
v = (gfloat) csf->y / csf->height;
v = CLAMP (v, 0.0, 1.0);
v = 1.0 - v;
s = 0;
ds = 1.0 / csf->width;
switch ((gint) h)
{
case 0:
for (i = 0; i < csf->width; i++)
{
*p++ = v * 255;
*p++ = v * (255 - (s * (255 - f)));
*p++ = v * 255 * (1 - s);
s += ds;
}
break;
case 1:
for (i = 0; i < csf->width; i++)
{
*p++ = v * (255 - s * f);
*p++ = v * 255;
*p++ = v * 255 * (1 - s);
s += ds;
}
break;
case 2:
for (i = 0; i < csf->width; i++)
{
*p++ = v * 255 * (1 - s);
*p++ = v *255;
*p++ = v * (255 - (s * (255 - f)));
s += ds;
}
break;
case 3:
for (i = 0; i < csf->width; i++)
{
*p++ = v * 255 * (1 - s);
*p++ = v * (255 - s * f);
*p++ = v * 255;
s += ds;
}
break;
case 4:
for (i = 0; i < csf->width; i++)
{
*p++ = v * (255 - (s * (255 - f)));
*p++ = v * (255 * (1 - s));
*p++ = v * 255;
s += ds;
}
break;
case 5:
for (i = 0; i < csf->width; i++)
{
*p++ = v * 255;
*p++ = v * 255 * (1 - s);
*p++ = v * (255 - s * f);
s += ds;
}
break;
}
}
static void
color_select_render_lch_chroma_lightness (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
GimpLCH lch;
gint i;
lch.l = (csf->height - 1 - csf->y) * 100.0 / csf->height;
lch.h = csf->lch.h;
for (i = 0; i < csf->width; i++)
{
GimpRGB rgb;
lch.c = i * 200.0 / csf->width;
babl_process (fish_lch_to_rgb, &lch, &rgb, 1);
if (rgb.r < 0.0 || rgb.r > 1.0 ||
rgb.g < 0.0 || rgb.g > 1.0 ||
rgb.b < 0.0 || rgb.b > 1.0)
{
p[0] = csf->oog_color[0];
p[1] = csf->oog_color[1];
p[2] = csf->oog_color[2];
}
else
{
gimp_rgb_get_uchar (&rgb, p, p + 1, p + 2);
}
p += 3;
}
}
static void
color_select_render_lch_hue_lightness (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
GimpLCH lch;
gint i;
lch.l = (csf->height - 1 - csf->y) * 100.0 / csf->height;
lch.c = csf->lch.c;
for (i = 0; i < csf->width; i++)
{
GimpRGB rgb;
lch.h = i * 360.0 / csf->width;
babl_process (fish_lch_to_rgb, &lch, &rgb, 1);
if (rgb.r < 0.0 || rgb.r > 1.0 ||
rgb.g < 0.0 || rgb.g > 1.0 ||
rgb.b < 0.0 || rgb.b > 1.0)
{
p[0] = csf->oog_color[0];
p[1] = csf->oog_color[1];
p[2] = csf->oog_color[2];
}
else
{
gimp_rgb_get_uchar (&rgb, p, p + 1, p + 2);
}
p += 3;
}
}
static void
color_select_render_lch_hue_chroma (ColorSelectFill *csf)
{
guchar *p = csf->buffer;
GimpLCH lch;
gint i;
lch.l = csf->lch.l;
lch.c = (csf->height - 1 - csf->y) * 200.0 / csf->height;
for (i = 0; i < csf->width; i++)
{
GimpRGB rgb;
lch.h = i * 360.0 / csf->width;
babl_process (fish_lch_to_rgb, &lch, &rgb, 1);
if (rgb.r < 0.0 || rgb.r > 1.0 ||
rgb.g < 0.0 || rgb.g > 1.0 ||
rgb.b < 0.0 || rgb.b > 1.0)
{
p[0] = csf->oog_color[0];
p[1] = csf->oog_color[1];
p[2] = csf->oog_color[2];
}
else
{
gimp_rgb_get_uchar (&rgb, p, p + 1, p + 2);
}
p += 3;
}
}
static void
gimp_color_select_create_transform (GimpColorSelect *select)
{
if (select->config)
{
static GimpColorProfile *profile = NULL;
const Babl *format = babl_format ("cairo-RGB24");
if (G_UNLIKELY (! profile))
profile = gimp_color_profile_new_rgb_srgb ();
select->transform = gimp_widget_get_color_transform (GTK_WIDGET (select),
select->config,
profile,
format,
format);
}
}
static void
gimp_color_select_destroy_transform (GimpColorSelect *select)
{
if (select->transform)
{
g_object_unref (select->transform);
select->transform = NULL;
}
gtk_widget_queue_draw (select->xy_color);
gtk_widget_queue_draw (select->z_color);
}
static void
gimp_color_select_notify_config (GimpColorConfig *config,
const GParamSpec *pspec,
GimpColorSelect *select)
{
gimp_color_select_destroy_transform (select);
gimp_rgb_get_uchar (&config->out_of_gamut_color,
select->oog_color,
select->oog_color + 1,
select->oog_color + 2);
select->xy_needs_render = TRUE;
select->z_needs_render = TRUE;
}
static void
gimp_color_select_switch_page (GtkNotebook *notebook,
GtkWidget *page,
gint num,
GimpColorSelect *select)
{
gimp_color_selector_set_model (GIMP_COLOR_SELECTOR (select),
(GimpColorSelectorModel) num);
}
static void
gimp_color_select_model_changed (GimpColorSelector *selector,
GimpColorSelectorModel model,
GtkNotebook *color_model_notebook)
{
GimpColorSelect *select = GIMP_COLOR_SELECT (selector);
GList *children;
GtkButton *button;
/* Select the first channel. */
children = gtk_container_get_children (GTK_CONTAINER (select->toggle_box[model]));
button = children->data;
g_list_free (children);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (button), TRUE);
gtk_notebook_set_current_page (color_model_notebook, (gint) model);
}
Reference in New Issue View Git Blame Copy Permalink