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gimp/app/tools/gimphuesaturationtool.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* 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 2 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, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#include "config.h"
#include <gtk/gtk.h>
#include "libgimpcolor/gimpcolor.h"
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "base/hue-saturation.h"
#include "core/gimpdrawable.h"
#include "core/gimpimage.h"
#include "core/gimpimagemap.h"
#include "display/gimpdisplay.h"
#include "gimphuesaturationtool.h"
#include "gimp-intl.h"
#define SLIDER_WIDTH 200
#define DA_WIDTH 40
#define DA_HEIGHT 20
#define HUE_SLIDER (1 << 0)
#define LIGHTNESS_SLIDER (1 << 1)
#define SATURATION_SLIDER (1 << 2)
#define DRAW (1 << 3)
#define SLIDERS (HUE_SLIDER | LIGHTNESS_SLIDER | SATURATION_SLIDER)
#define ALL (SLIDERS | DRAW)
/* local function prototypes */
static void gimp_hue_saturation_tool_class_init (GimpHueSaturationToolClass *klass);
static void gimp_hue_saturation_tool_init (GimpHueSaturationTool *tool);
static void gimp_hue_saturation_tool_finalize (GObject *object);
static void gimp_hue_saturation_tool_initialize (GimpTool *tool,
GimpDisplay *gdisp);
static void gimp_hue_saturation_tool_map (GimpImageMapTool *image_map_tool);
static void gimp_hue_saturation_tool_dialog (GimpImageMapTool *image_map_tool);
static void gimp_hue_saturation_tool_reset (GimpImageMapTool *image_map_tool);
static void hue_saturation_update (GimpHueSaturationTool *hs_tool,
gint update);
static void hue_saturation_partition_callback (GtkWidget *widget,
gpointer data);
static void hue_saturation_partition_reset_callback (GtkWidget *widget,
gpointer data);
static void hue_saturation_hue_adjustment_update (GtkAdjustment *adj,
gpointer data);
static void hue_saturation_lightness_adjustment_update (GtkAdjustment *adj,
gpointer data);
static void hue_saturation_saturation_adjustment_update (GtkAdjustment *adj,
gpointer data);
/* private variables */
static gint default_colors[6][3] =
{
{ 255, 0, 0 },
{ 255, 255, 0 },
{ 0, 255, 0 },
{ 0, 255, 255 },
{ 0, 0, 255 },
{ 255, 0, 255 }
};
static GimpImageMapToolClass *parent_class = NULL;
/* public functions */
void
gimp_hue_saturation_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_HUE_SATURATION_TOOL,
G_TYPE_NONE, NULL,
0,
"gimp-hue-saturation-tool",
_("Hue-Saturation"),
_("Adjust hue and saturation"),
N_("/Tools/Color Tools/Hue-Saturation..."), NULL,
NULL, "tools/hue_saturation.html",
GIMP_STOCK_TOOL_HUE_SATURATION,
data);
}
GType
gimp_hue_saturation_tool_get_type (void)
{
static GType tool_type = 0;
if (! tool_type)
{
static const GTypeInfo tool_info =
{
sizeof (GimpHueSaturationToolClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_hue_saturation_tool_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpHueSaturationTool),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_hue_saturation_tool_init,
};
tool_type = g_type_register_static (GIMP_TYPE_IMAGE_MAP_TOOL,
"GimpHueSaturationTool",
&tool_info, 0);
}
return tool_type;
}
/* private functions */
static void
gimp_hue_saturation_tool_class_init (GimpHueSaturationToolClass *klass)
{
GObjectClass *object_class;
GimpToolClass *tool_class;
GimpImageMapToolClass *image_map_tool_class;
object_class = G_OBJECT_CLASS (klass);
tool_class = GIMP_TOOL_CLASS (klass);
image_map_tool_class = GIMP_IMAGE_MAP_TOOL_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
object_class->finalize = gimp_hue_saturation_tool_finalize;
tool_class->initialize = gimp_hue_saturation_tool_initialize;
image_map_tool_class->map = gimp_hue_saturation_tool_map;
image_map_tool_class->dialog = gimp_hue_saturation_tool_dialog;
image_map_tool_class->reset = gimp_hue_saturation_tool_reset;
}
static void
gimp_hue_saturation_tool_init (GimpHueSaturationTool *hs_tool)
{
GimpImageMapTool *image_map_tool;
image_map_tool = GIMP_IMAGE_MAP_TOOL (hs_tool);
image_map_tool->shell_identifier = "gimp-hue-saturation-tool-dialog";
image_map_tool->shell_desc = _("Adjust Hue / Lightness / Saturation");
hs_tool->hue_saturation = g_new0 (HueSaturation, 1);
hs_tool->hue_partition = GIMP_ALL_HUES;
hue_saturation_init (hs_tool->hue_saturation);
}
static void
gimp_hue_saturation_tool_finalize (GObject *object)
{
GimpHueSaturationTool *hs_tool;
hs_tool = GIMP_HUE_SATURATION_TOOL (object);
if (hs_tool->hue_saturation)
{
g_free (hs_tool->hue_saturation);
hs_tool->hue_saturation = NULL;
}
G_OBJECT_CLASS (parent_class)->finalize (object);
}
static void
gimp_hue_saturation_tool_initialize (GimpTool *tool,
GimpDisplay *gdisp)
{
GimpHueSaturationTool *hs_tool;
hs_tool = GIMP_HUE_SATURATION_TOOL (tool);
if (! gimp_drawable_is_rgb (gimp_image_active_drawable (gdisp->gimage)))
{
g_message (_("Hue-Saturation operates only on RGB color drawables."));
return;
}
hue_saturation_init (hs_tool->hue_saturation);
hs_tool->hue_partition = GIMP_ALL_HUES;
GIMP_TOOL_CLASS (parent_class)->initialize (tool, gdisp);
hue_saturation_update (hs_tool, ALL);
}
static void
gimp_hue_saturation_tool_map (GimpImageMapTool *image_map_tool)
{
GimpHueSaturationTool *hs_tool;
hs_tool = GIMP_HUE_SATURATION_TOOL (image_map_tool);
gimp_image_map_apply (image_map_tool->image_map,
(GimpImageMapApplyFunc) hue_saturation,
hs_tool->hue_saturation);
}
/***************************/
/* Hue-Saturation dialog */
/***************************/
static void
gimp_hue_saturation_tool_dialog (GimpImageMapTool *image_map_tool)
{
GimpHueSaturationTool *hs_tool;
GtkWidget *abox;
GtkWidget *table;
GtkWidget *slider;
GtkWidget *button;
GtkWidget *frame;
GtkWidget *vbox;
GtkWidget *hbox;
GtkObject *data;
GSList *group = NULL;
gint i;
const struct
{
const gchar *label;
gint label_col;
gint label_row;
gint frame_col;
gint frame_row;
}
hue_partition_table[] =
{
{ N_("_Master"), 2, 3, 0, 0 },
{ N_("_R"), 2, 1, 2, 0 },
{ N_("_Y"), 1, 2, 0, 2 },
{ N_("_G"), 1, 4, 0, 4 },
{ N_("_C"), 2, 5, 2, 6 },
{ N_("_B"), 3, 4, 4, 4 },
{ N_("_M"), 3, 2, 4, 2 }
};
hs_tool = GIMP_HUE_SATURATION_TOOL (image_map_tool);
frame = gtk_frame_new (_("Select Primary Color to Modify"));
gtk_box_pack_start (GTK_BOX (image_map_tool->main_vbox), frame,
FALSE, FALSE, 0);
gtk_widget_show (frame);
abox = gtk_alignment_new (0.5, 0.5, 0.0, 0.0);
gtk_container_set_border_width (GTK_CONTAINER (abox), 2);
gtk_container_add (GTK_CONTAINER (frame), abox);
gtk_widget_show (abox);
/* The table containing hue partitions */
table = gtk_table_new (7, 5, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_table_set_col_spacing (GTK_TABLE (table), 3, 4);
gtk_table_set_row_spacing (GTK_TABLE (table), 0, 2);
gtk_table_set_row_spacing (GTK_TABLE (table), 5, 2);
gtk_container_add (GTK_CONTAINER (abox), table);
/* the radio buttons for hue partitions */
for (i = 0; i < 7; i++)
{
button = gtk_radio_button_new_with_mnemonic (group, gettext (hue_partition_table[i].label));
group = gtk_radio_button_get_group (GTK_RADIO_BUTTON (button));
g_object_set_data (G_OBJECT (button), "hue_partition",
GINT_TO_POINTER (i));
if (i == 0)
{
gtk_toggle_button_set_mode (GTK_TOGGLE_BUTTON (button), FALSE);
gimp_help_set_help_data (button, _("Modify all colors"), NULL);
}
gtk_table_attach (GTK_TABLE (table), button,
hue_partition_table[i].label_col,
hue_partition_table[i].label_col + 1,
hue_partition_table[i].label_row,
hue_partition_table[i].label_row + 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
if (i > 0)
{
GimpRGB color = { 0.0 };
frame = gtk_frame_new (NULL);
gtk_frame_set_shadow_type (GTK_FRAME (frame), GTK_SHADOW_IN);
gtk_table_attach (GTK_TABLE (table), frame,
hue_partition_table[i].frame_col,
hue_partition_table[i].frame_col + 1,
hue_partition_table[i].frame_row,
hue_partition_table[i].frame_row + 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (frame);
hs_tool->hue_partition_da[i - 1] = gimp_color_area_new (&color,
GIMP_COLOR_AREA_FLAT,
0);
gtk_widget_set_size_request (hs_tool->hue_partition_da[i - 1],
DA_WIDTH, DA_HEIGHT);
gtk_container_add (GTK_CONTAINER (frame),
hs_tool->hue_partition_da[i - 1]);
gtk_widget_show (hs_tool->hue_partition_da[i - 1]);
}
g_signal_connect (button, "toggled",
G_CALLBACK (hue_saturation_partition_callback),
hs_tool);
gtk_widget_show (button);
}
gtk_widget_show (table);
frame = gtk_frame_new (_("Modify Selected Color"));
gtk_box_pack_start (GTK_BOX (image_map_tool->main_vbox), frame,
FALSE, FALSE, 0);
gtk_widget_show (frame);
/* The table containing sliders */
vbox = gtk_vbox_new (FALSE, 4);
gtk_container_set_border_width (GTK_CONTAINER (vbox), 2);
gtk_container_add (GTK_CONTAINER (frame), vbox);
gtk_widget_show (vbox);
table = gtk_table_new (3, 3, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
gtk_widget_show (table);
/* Create the hue scale widget */
data = gimp_scale_entry_new (GTK_TABLE (table), 0, 0,
_("_Hue:"), SLIDER_WIDTH, -1,
0.0, -180.0, 180.0, 1.0, 15.0, 0,
TRUE, 0.0, 0.0,
NULL, NULL);
hs_tool->hue_data = GTK_ADJUSTMENT (data);
slider = GIMP_SCALE_ENTRY_SCALE (data);
gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
g_signal_connect (data, "value_changed",
G_CALLBACK (hue_saturation_hue_adjustment_update),
hs_tool);
/* Create the lightness scale widget */
data = gimp_scale_entry_new (GTK_TABLE (table), 0, 1,
_("_Lightness:"), SLIDER_WIDTH, -1,
0.0, -100.0, 100.0, 1.0, 10.0, 0,
TRUE, 0.0, 0.0,
NULL, NULL);
hs_tool->lightness_data = GTK_ADJUSTMENT (data);
slider = GIMP_SCALE_ENTRY_SCALE (data);
gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
g_signal_connect (data, "value_changed",
G_CALLBACK (hue_saturation_lightness_adjustment_update),
hs_tool);
/* Create the saturation scale widget */
data = gimp_scale_entry_new (GTK_TABLE (table), 0, 2,
_("_Saturation:"), SLIDER_WIDTH, -1,
0.0, -100.0, 100.0, 1.0, 10.0, 0,
TRUE, 0.0, 0.0,
NULL, NULL);
hs_tool->saturation_data = GTK_ADJUSTMENT (data);
slider = GIMP_SCALE_ENTRY_SCALE (data);
gtk_range_set_update_policy (GTK_RANGE (slider), GTK_UPDATE_DELAYED);
g_signal_connect (hs_tool->saturation_data, "value_changed",
G_CALLBACK (hue_saturation_saturation_adjustment_update),
hs_tool);
hbox = gtk_hbox_new (FALSE, 4);
gtk_box_pack_start (GTK_BOX (vbox), hbox, FALSE, FALSE, 0);
gtk_widget_show (hbox);
button = gtk_button_new_with_mnemonic (_("R_eset Color"));
gtk_box_pack_end (GTK_BOX (hbox), button, FALSE, FALSE, 0);
gtk_widget_show (button);
g_signal_connect (button, "clicked",
G_CALLBACK (hue_saturation_partition_reset_callback),
hs_tool);
}
static void
gimp_hue_saturation_tool_reset (GimpImageMapTool *image_map_tool)
{
GimpHueSaturationTool *hs_tool;
hs_tool = GIMP_HUE_SATURATION_TOOL (image_map_tool);
hue_saturation_init (hs_tool->hue_saturation);
hue_saturation_update (hs_tool, ALL);
}
static void
hue_saturation_update (GimpHueSaturationTool *hs_tool,
gint update)
{
gint rgb[3];
GimpRGB color;
gint i;
hue_saturation_calculate_transfers (hs_tool->hue_saturation);
if (update & HUE_SLIDER)
gtk_adjustment_set_value (GTK_ADJUSTMENT (hs_tool->hue_data),
hs_tool->hue_saturation->hue[hs_tool->hue_partition]);
if (update & LIGHTNESS_SLIDER)
gtk_adjustment_set_value (GTK_ADJUSTMENT (hs_tool->lightness_data),
hs_tool->hue_saturation->lightness[hs_tool->hue_partition]);
if (update & SATURATION_SLIDER)
gtk_adjustment_set_value (GTK_ADJUSTMENT (hs_tool->saturation_data),
hs_tool->hue_saturation->saturation[hs_tool->hue_partition]);
if (update & DRAW)
{
for (i = 0; i < 6; i++)
{
rgb[RED_PIX] = default_colors[i][RED_PIX];
rgb[GREEN_PIX] = default_colors[i][GREEN_PIX];
rgb[BLUE_PIX] = default_colors[i][BLUE_PIX];
gimp_rgb_to_hls_int (rgb, rgb + 1, rgb + 2);
rgb[RED_PIX] = hs_tool->hue_saturation->hue_transfer[i][rgb[RED_PIX]];
rgb[GREEN_PIX] = hs_tool->hue_saturation->lightness_transfer[i][rgb[GREEN_PIX]];
rgb[BLUE_PIX] = hs_tool->hue_saturation->saturation_transfer[i][rgb[BLUE_PIX]];
gimp_hls_to_rgb_int (rgb, rgb + 1, rgb + 2);
gimp_rgb_set_uchar (&color,
(guchar) rgb[0], (guchar) rgb[1], (guchar) rgb[2]);
gimp_color_area_set_color (GIMP_COLOR_AREA (hs_tool->hue_partition_da[i]),
&color);
}
}
}
static void
hue_saturation_partition_callback (GtkWidget *widget,
gpointer data)
{
GimpHueSaturationTool *hs_tool;
GimpHueRange partition;
hs_tool = GIMP_HUE_SATURATION_TOOL (data);
partition = GPOINTER_TO_INT (g_object_get_data (G_OBJECT (widget),
"hue_partition"));
if (hs_tool->hue_partition != partition)
{
hs_tool->hue_partition = partition;
hue_saturation_update (hs_tool, SLIDERS);
}
}
static void
hue_saturation_partition_reset_callback (GtkWidget *widget,
gpointer data)
{
GimpHueSaturationTool *hs_tool;
hs_tool = GIMP_HUE_SATURATION_TOOL (data);
hue_saturation_partition_reset (hs_tool->hue_saturation,
hs_tool->hue_partition);
hue_saturation_update (hs_tool, ALL);
gimp_image_map_tool_preview (GIMP_IMAGE_MAP_TOOL (hs_tool));
}
static void
hue_saturation_hue_adjustment_update (GtkAdjustment *adjustment,
gpointer data)
{
GimpHueSaturationTool *hs_tool;
GimpHueRange part;
hs_tool = GIMP_HUE_SATURATION_TOOL (data);
part = hs_tool->hue_partition;
if (hs_tool->hue_saturation->hue[part] != adjustment->value)
{
hs_tool->hue_saturation->hue[part] = adjustment->value;
hue_saturation_update (hs_tool, DRAW);
gimp_image_map_tool_preview (GIMP_IMAGE_MAP_TOOL (hs_tool));
}
}
static void
hue_saturation_lightness_adjustment_update (GtkAdjustment *adjustment,
gpointer data)
{
GimpHueSaturationTool *hs_tool;
GimpHueRange part;
hs_tool = GIMP_HUE_SATURATION_TOOL (data);
part = hs_tool->hue_partition;
if (hs_tool->hue_saturation->lightness[part] != adjustment->value)
{
hs_tool->hue_saturation->lightness[part] = adjustment->value;
hue_saturation_update (hs_tool, DRAW);
gimp_image_map_tool_preview (GIMP_IMAGE_MAP_TOOL (hs_tool));
}
}
static void
hue_saturation_saturation_adjustment_update (GtkAdjustment *adjustment,
gpointer data)
{
GimpHueSaturationTool *hs_tool;
GimpHueRange part;
hs_tool = GIMP_HUE_SATURATION_TOOL (data);
part = hs_tool->hue_partition;
if (hs_tool->hue_saturation->saturation[part] != adjustment->value)
{
hs_tool->hue_saturation->saturation[part] = adjustment->value;
hue_saturation_update (hs_tool, DRAW);
gimp_image_map_tool_preview (GIMP_IMAGE_MAP_TOOL (hs_tool));
}
}
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