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gimp/app/tools/gimpcolorpickertool.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995-2001 Spencer Kimball, Peter Mattis, and others
*
* 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 "libgimpwidgets/gimpwidgets.h"
#include "apptypes.h"
#include "gui/info-dialog.h"
#include "gui/palette-editor.h"
#include "gdisplay.h"
#include "cursorutil.h"
#include "gimpui.h"
#include "gimpdrawtool.h"
#include "gimpcolorpickertool.h"
#include "tool_manager.h"
#include "tool_options.h"
#include "appenv.h"
#include "drawable.h"
#include "gimpimage.h"
#include "gimprc.h"
#include "libgimp/gimpintl.h"
#include "pixmaps2.h"
/* maximum information buffer size */
#define MAX_INFO_BUF 8
/* the color picker structures */
typedef struct _GimpColorPickerToolOptions GimpColorPickerToolOptions;
struct _GimpColorPickerToolOptions
{
ToolOptions tool_options;
gboolean sample_merged;
gboolean sample_merged_d;
GtkWidget *sample_merged_w;
gboolean sample_average;
gboolean sample_average_d;
GtkWidget *sample_average_w;
gdouble average_radius;
gdouble average_radius_d;
GtkObject *average_radius_w;
gboolean update_active;
gboolean update_active_d;
GtkWidget *update_active_w;
};
/* local function prototypes */
static void gimp_color_picker_tool_class_init (GimpColorPickerToolClass *klass);
static void gimp_color_picker_tool_init (GimpColorPickerTool *color_picker_tool);
static void gimp_color_picker_tool_destroy (GtkObject *object);
static void gimp_color_picker_tool_button_press (GimpTool *tool,
GdkEventButton *bevent,
GDisplay *gdisp);
static void gimp_color_picker_tool_button_release (GimpTool *tool,
GdkEventButton *bevent,
GDisplay *gdisp);
static void gimp_color_picker_tool_motion (GimpTool *tool,
GdkEventMotion *mevent,
GDisplay *gdisp);
static void gimp_color_picker_tool_cursor_update (GimpTool *tool,
GdkEventMotion *mevent,
GDisplay *gdisp);
static void gimp_color_picker_tool_control (GimpTool *tool,
ToolAction action,
GDisplay *gdisp);
static void gimp_color_picker_tool_draw (GimpDrawTool *draw_tool);
static GimpColorPickerToolOptions * gimp_color_picker_tool_options_new (void);
static void gimp_color_picker_tool_options_reset (ToolOptions *tool_options);
static void gimp_color_picker_tool_info_window_close_callback (GtkWidget *widget,
gpointer data);
static void gimp_color_picker_tool_info_update (GimpTool *tool,
gboolean valid);
static gboolean pick_color_do (GimpImage *gimage,
GimpDrawable *drawable,
gint x,
gint y,
gboolean sample_merged,
gboolean sample_average,
gdouble average_radius,
gboolean update_active,
gint final);
/* the color picker tool options */
static GimpColorPickerToolOptions * gimp_color_picker_tool_options = NULL;
/* the color value */
gint col_value[5] = { 0, 0, 0, 0, 0 };
/* the color picker dialog */
static gint update_type;
static GimpImageType sample_type;
static InfoDialog *gimp_color_picker_tool_info = NULL;
static GtkWidget *color_area = NULL;
static gchar red_buf [MAX_INFO_BUF];
static gchar green_buf[MAX_INFO_BUF];
static gchar blue_buf [MAX_INFO_BUF];
static gchar alpha_buf[MAX_INFO_BUF];
static gchar index_buf[MAX_INFO_BUF];
static gchar gray_buf [MAX_INFO_BUF];
static gchar hex_buf [MAX_INFO_BUF];
static GimpDrawToolClass *parent_class = NULL;
void
gimp_color_picker_tool_register (void)
{
tool_manager_register_tool (GIMP_TYPE_COLOR_PICKER_TOOL,
FALSE,
"gimp:color_picker_tool",
_("Color Picker"),
_("Pick colors from the image"),
N_("/Tools/Color Picker"), "<shift>O",
NULL, "tools/color_picker.html",
(const gchar **) colorpicker_bits);
}
GtkType
gimp_color_picker_tool_get_type (void)
{
static GtkType tool_type = 0;
if (! tool_type)
{
GtkTypeInfo tool_info =
{
"GimpColorPickerTool",
sizeof (GimpColorPickerTool),
sizeof (GimpColorPickerToolClass),
(GtkClassInitFunc) gimp_color_picker_tool_class_init,
(GtkObjectInitFunc) gimp_color_picker_tool_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
tool_type = gtk_type_unique (GIMP_TYPE_DRAW_TOOL, &tool_info);
}
return tool_type;
}
static void
gimp_color_picker_tool_class_init (GimpColorPickerToolClass *klass)
{
GtkObjectClass *object_class;
GimpToolClass *tool_class;
GimpDrawToolClass *draw_class;
object_class = (GtkObjectClass *) klass;
tool_class = (GimpToolClass *) klass;
draw_class = (GimpDrawToolClass *) klass;
parent_class = gtk_type_class (GIMP_TYPE_DRAW_TOOL);
object_class->destroy = gimp_color_picker_tool_destroy;
tool_class->control = gimp_color_picker_tool_control;
tool_class->button_press = gimp_color_picker_tool_button_press;
tool_class->button_release = gimp_color_picker_tool_button_release;
tool_class->motion = gimp_color_picker_tool_motion;
tool_class->cursor_update = gimp_color_picker_tool_cursor_update;
draw_class->draw = gimp_color_picker_tool_draw;
}
static void
gimp_color_picker_tool_init (GimpColorPickerTool *color_picker_tool)
{
GimpTool *tool;
tool = GIMP_TOOL (color_picker_tool);
if (! gimp_color_picker_tool_options)
{
gimp_color_picker_tool_options = gimp_color_picker_tool_options_new ();
tool_manager_register_tool_options (GIMP_TYPE_COLOR_PICKER_TOOL,
(ToolOptions *) gimp_color_picker_tool_options);
}
tool->preserve = FALSE; /* Don't preserve on drawable change */
}
static void
gimp_color_picker_tool_destroy (GtkObject *object)
{
GimpTool *tool;
GimpDrawTool *draw_tool;
tool = GIMP_TOOL (object);
draw_tool = GIMP_DRAW_TOOL (object);
if (tool->state == ACTIVE)
gimp_draw_tool_stop (draw_tool);
if (gimp_color_picker_tool_info)
{
info_dialog_free (gimp_color_picker_tool_info);
gimp_color_picker_tool_info = NULL;
color_area = NULL;
}
if (GTK_OBJECT_CLASS (parent_class)->destroy)
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
gimp_color_picker_tool_options_reset (ToolOptions *tool_options)
{
GimpColorPickerToolOptions *options;
options = (GimpColorPickerToolOptions *) tool_options;
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->sample_merged_w),
options->sample_merged_d);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->sample_average_w),
options->sample_average_d);
gtk_adjustment_set_value (GTK_ADJUSTMENT (options->average_radius_w),
options->average_radius_d);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->update_active_w),
options->update_active_d);
}
static GimpColorPickerToolOptions *
gimp_color_picker_tool_options_new (void)
{
GimpColorPickerToolOptions *options;
GtkWidget *vbox;
GtkWidget *abox;
GtkWidget *table;
GtkWidget *label;
GtkWidget *scale;
options = g_new0 (GimpColorPickerToolOptions, 1);
tool_options_init ((ToolOptions *) options,
gimp_color_picker_tool_options_reset);
options->sample_merged = options->sample_merged_d = FALSE;
options->sample_average = options->sample_average_d = FALSE;
options->average_radius = options->average_radius_d = 1.0;
options->update_active = options->update_active_d = TRUE;
/* the main vbox */
vbox = options->tool_options.main_vbox;
/* the sample merged toggle button */
options->sample_merged_w =
gtk_check_button_new_with_label (_("Sample Merged"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->sample_merged_w),
options->sample_merged_d);
gtk_box_pack_start (GTK_BOX (vbox), options->sample_merged_w, FALSE, FALSE, 0);
gtk_signal_connect (GTK_OBJECT (options->sample_merged_w), "toggled",
GTK_SIGNAL_FUNC (gimp_toggle_button_update),
&options->sample_merged);
gtk_widget_show (options->sample_merged_w);
/* the sample average options */
table = gtk_table_new (2, 2, FALSE);
gtk_table_set_col_spacing (GTK_TABLE (table), 0, 4);
gtk_box_pack_start (GTK_BOX (vbox), table, FALSE, FALSE, 0);
options->sample_average_w =
gtk_check_button_new_with_label (_("Sample Average"));
gtk_table_attach (GTK_TABLE (table), options->sample_average_w, 0, 1, 0, 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK, 0, 0);
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->sample_average_w),
options->sample_average_d);
gtk_signal_connect (GTK_OBJECT (options->sample_average_w), "toggled",
GTK_SIGNAL_FUNC (gimp_toggle_button_update),
&options->sample_average);
gtk_widget_show (options->sample_average_w);
label = gtk_label_new (_("Radius:"));
gtk_misc_set_alignment (GTK_MISC (label), 1.0, 1.0);
gtk_table_attach (GTK_TABLE (table), label, 0, 1, 1, 2,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (label);
/* the feather radius scale */
abox = gtk_alignment_new (0.5, 1.0, 1.0, 0.0);
gtk_table_attach (GTK_TABLE (table), abox, 1, 2, 0, 2,
GTK_EXPAND | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (abox);
options->average_radius_w =
gtk_adjustment_new (options->average_radius_d, 1.0, 15.0, 2.0, 2.0, 0.0);
scale = gtk_hscale_new (GTK_ADJUSTMENT (options->average_radius_w));
gtk_scale_set_digits (GTK_SCALE (scale), 0);
gtk_container_add (GTK_CONTAINER (abox), scale);
gtk_widget_set_sensitive (scale, options->sample_average_d);
gtk_object_set_data (GTK_OBJECT (options->sample_average_w), "set_sensitive",
scale);
gtk_widget_set_sensitive (label, options->sample_average_d);
gtk_object_set_data (GTK_OBJECT (scale), "set_sensitive",
label);
gtk_scale_set_value_pos (GTK_SCALE (scale), GTK_POS_TOP);
gtk_range_set_update_policy (GTK_RANGE (scale), GTK_UPDATE_DELAYED);
gtk_signal_connect (GTK_OBJECT (options->average_radius_w), "value_changed",
GTK_SIGNAL_FUNC (gimp_double_adjustment_update),
&options->average_radius);
gtk_widget_show (scale);
gtk_widget_show (table);
/* the update active color toggle button */
options->update_active_w =
gtk_check_button_new_with_label (_("Update Active Color"));
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->update_active_w),
options->update_active_d);
gtk_box_pack_start (GTK_BOX (vbox), options->update_active_w, FALSE, FALSE, 0);
gtk_signal_connect (GTK_OBJECT (options->update_active_w), "toggled",
GTK_SIGNAL_FUNC (gimp_toggle_button_update),
&options->update_active);
gtk_widget_show (options->update_active_w);
return options;
}
static void
gimp_color_picker_tool_button_press (GimpTool *tool,
GdkEventButton *bevent,
GDisplay *gdisp)
{
GimpColorPickerTool *cp_tool;
gint x, y;
cp_tool = GIMP_COLOR_PICKER_TOOL(tool);
/* Make the tool active and set it's gdisplay & drawable */
tool->gdisp = gdisp;
tool->drawable = gimp_image_active_drawable (gdisp->gimage);
tool->state = ACTIVE;
/* create the info dialog if it doesn't exist */
if (! gimp_color_picker_tool_info)
{
GtkWidget *hbox;
GtkWidget *frame;
GimpRGB color;
gimp_color_picker_tool_info = info_dialog_new (_("Color Picker"),
tool_manager_help_func, NULL);
/* if the gdisplay is for a color image, the dialog must have RGB */
switch (gimp_drawable_type (tool->drawable))
{
case RGB_GIMAGE: case RGBA_GIMAGE:
info_dialog_add_label (gimp_color_picker_tool_info, _("Red:"), red_buf);
info_dialog_add_label (gimp_color_picker_tool_info, _("Green:"), green_buf);
info_dialog_add_label (gimp_color_picker_tool_info, _("Blue:"), blue_buf);
info_dialog_add_label (gimp_color_picker_tool_info, _("Alpha:"), alpha_buf);
info_dialog_add_label (gimp_color_picker_tool_info, _("Hex Triplet:"), hex_buf);
break;
case INDEXED_GIMAGE: case INDEXEDA_GIMAGE:
info_dialog_add_label (gimp_color_picker_tool_info, _("Index:"), index_buf);
info_dialog_add_label (gimp_color_picker_tool_info, _("Red:"), red_buf);
info_dialog_add_label (gimp_color_picker_tool_info, _("Green:"), green_buf);
info_dialog_add_label (gimp_color_picker_tool_info, _("Blue:"), blue_buf);
info_dialog_add_label (gimp_color_picker_tool_info, _("Alpha:"), alpha_buf);
info_dialog_add_label (gimp_color_picker_tool_info, _("Hex Triplet"), hex_buf);
break;
case GRAY_GIMAGE: case GRAYA_GIMAGE:
info_dialog_add_label (gimp_color_picker_tool_info, _("Intensity:"), gray_buf);
info_dialog_add_label (gimp_color_picker_tool_info, _("Alpha:"), alpha_buf);
info_dialog_add_label (gimp_color_picker_tool_info, _("Hex Triplet:"), hex_buf);
break;
default :
break;
}
hbox = gtk_hbox_new (FALSE, 4);
gtk_box_pack_start (GTK_BOX (gimp_color_picker_tool_info->vbox), hbox,
FALSE, FALSE, 0);
gtk_widget_show (hbox);
gtk_widget_reparent (gimp_color_picker_tool_info->info_table, hbox);
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);
gimp_rgba_set (&color, 0.0, 0.0, 0.0, 0.0);
color_area =
gimp_color_area_new (&color,
gimp_drawable_has_alpha (tool->drawable) ?
GIMP_COLOR_AREA_LARGE_CHECKS :
GIMP_COLOR_AREA_FLAT,
GDK_BUTTON1_MASK | GDK_BUTTON2_MASK);
gtk_widget_set_usize (color_area, 48, 64);
gtk_drag_dest_unset (color_area);
gtk_container_add (GTK_CONTAINER (frame), color_area);
gtk_widget_show (color_area);
gtk_widget_show (frame);
/* create the action area */
gimp_dialog_create_action_area
(GTK_DIALOG (gimp_color_picker_tool_info->shell),
_("Close"), gimp_color_picker_tool_info_window_close_callback,
gimp_color_picker_tool_info, NULL, NULL, TRUE, FALSE,
NULL);
}
/* Keep the coordinates of the target */
gdisplay_untransform_coords (gdisp, bevent->x, bevent->y,
&cp_tool->centerx, &cp_tool->centery, FALSE, 1);
gdk_pointer_grab (gdisp->canvas->window, FALSE,
(GDK_POINTER_MOTION_HINT_MASK |
GDK_BUTTON1_MOTION_MASK |
GDK_BUTTON_RELEASE_MASK),
NULL, NULL, bevent->time);
/* First, transform the coordinates to gimp image space */
gdisplay_untransform_coords (gdisp, bevent->x, bevent->y, &x, &y,
FALSE, FALSE);
/* if the shift key is down, create a new color.
* otherwise, modify the current color.
*/
if (bevent->state & GDK_SHIFT_MASK)
{
gimp_color_picker_tool_info_update
(tool, pick_color_do (gdisp->gimage, tool->drawable, x, y,
gimp_color_picker_tool_options->sample_merged,
gimp_color_picker_tool_options->sample_average,
gimp_color_picker_tool_options->average_radius,
gimp_color_picker_tool_options->update_active,
COLOR_NEW));
update_type = COLOR_UPDATE_NEW;
}
else
{
gimp_color_picker_tool_info_update
(tool, pick_color_do (gdisp->gimage, tool->drawable, x, y,
gimp_color_picker_tool_options->sample_merged,
gimp_color_picker_tool_options->sample_average,
gimp_color_picker_tool_options->average_radius,
gimp_color_picker_tool_options->update_active,
COLOR_UPDATE));
update_type = COLOR_UPDATE;
}
/* Start drawing the colorpicker tool */
gimp_draw_tool_start (GIMP_DRAW_TOOL(cp_tool), gdisp->canvas->window);
}
static void
gimp_color_picker_tool_button_release (GimpTool *tool,
GdkEventButton *bevent,
GDisplay *gdisp)
{
GimpColorPickerTool *cp_tool;
gint x, y;
gdk_pointer_ungrab (bevent->time);
gdk_flush ();
cp_tool = GIMP_COLOR_PICKER_TOOL(tool);
/* First, transform the coordinates to gimp image space */
gdisplay_untransform_coords (gdisp, bevent->x, bevent->y, &x, &y,
FALSE, FALSE);
gimp_color_picker_tool_info_update
(tool, pick_color_do (gdisp->gimage, tool->drawable, x, y,
gimp_color_picker_tool_options->sample_merged,
gimp_color_picker_tool_options->sample_average,
gimp_color_picker_tool_options->average_radius,
gimp_color_picker_tool_options->update_active,
update_type));
gimp_draw_tool_stop (GIMP_DRAW_TOOL(cp_tool));
tool->state = INACTIVE;
}
static void
gimp_color_picker_tool_motion (GimpTool *tool,
GdkEventMotion *mevent,
GDisplay *gdisp)
{
GimpColorPickerTool *cp_tool;
gint x, y;
cp_tool = GIMP_COLOR_PICKER_TOOL(tool);
/* undraw the current tool */
gimp_draw_tool_pause (GIMP_DRAW_TOOL(cp_tool));
/* First, transform the coordinates to gimp image space */
gdisplay_untransform_coords (gdisp, mevent->x, mevent->y, &x, &y,
FALSE, FALSE);
gdisplay_untransform_coords (gdisp, mevent->x, mevent->y,
&cp_tool->centerx, &cp_tool->centery,
FALSE, TRUE);
gimp_color_picker_tool_info_update
(tool, pick_color_do (gdisp->gimage, tool->drawable, x, y,
gimp_color_picker_tool_options->sample_merged,
gimp_color_picker_tool_options->sample_average,
gimp_color_picker_tool_options->average_radius,
gimp_color_picker_tool_options->update_active,
update_type));
/* redraw the current tool */
gimp_draw_tool_resume (GIMP_DRAW_TOOL(cp_tool));
}
static void
gimp_color_picker_tool_cursor_update (GimpTool *tool,
GdkEventMotion *mevent,
GDisplay *gdisp)
{
gint x, y;
gdisplay_untransform_coords (gdisp, mevent->x, mevent->y, &x, &y,
FALSE, FALSE);
/* We used to use the following code here:
*
* if (gimp_image_pick_correlate_layer (gdisp->gimage, x, y)) { ... }
*/
if (gdisp->gimage &&
x > 0 && x < gdisp->gimage->width &&
y > 0 && y < gdisp->gimage->height)
{
gdisplay_install_tool_cursor (gdisp, GIMP_COLOR_PICKER_CURSOR,
GIMP_COLOR_PICKER_TOOL_CURSOR,
GIMP_CURSOR_MODIFIER_NONE);
}
else
{
gdisplay_install_tool_cursor (gdisp, GIMP_BAD_CURSOR,
GIMP_COLOR_PICKER_TOOL_CURSOR,
GIMP_CURSOR_MODIFIER_NONE);
}
}
static void
gimp_color_picker_tool_control (GimpTool *tool,
ToolAction action,
GDisplay *gdisp)
{
switch (action)
{
case PAUSE :
break;
case RESUME :
break;
case HALT :
info_dialog_popdown (gimp_color_picker_tool_info);
break;
default:
break;
}
if (GIMP_TOOL_CLASS (parent_class)->control)
GIMP_TOOL_CLASS (parent_class)->control (tool, action, gdisp);
}
typedef guchar * (*GetColorFunc) (GimpObject *object,
gint x,
gint y);
static gboolean
pick_color_do (GimpImage *gimage,
GimpDrawable *drawable,
gint x,
gint y,
gboolean sample_merged,
gboolean sample_average,
gdouble average_radius,
gboolean update_active,
gint final)
{
guchar *color;
gint offx, offy;
gint has_alpha;
gint is_indexed;
GetColorFunc get_color_func;
GimpObject *get_color_obj;
if (!drawable && !sample_merged)
return FALSE;
if (!sample_merged)
{
gimp_drawable_offsets (drawable, &offx, &offy);
x -= offx;
y -= offy;
sample_type = gimp_drawable_type (drawable);
is_indexed = gimp_drawable_is_indexed (drawable);
get_color_func = (GetColorFunc) gimp_drawable_get_color_at;
get_color_obj = GIMP_OBJECT (drawable);
}
else
{
sample_type = gimp_image_composite_type (gimage);
is_indexed = FALSE;
get_color_func = (GetColorFunc) gimp_image_get_color_at;
get_color_obj = GIMP_OBJECT (gimage);
}
has_alpha = GIMP_IMAGE_TYPE_HAS_ALPHA (sample_type);
if (!(color = (* get_color_func) (get_color_obj, x, y)))
return FALSE;
if (sample_average)
{
gint i, j;
gint count = 0;
gint color_avg[4] = { 0, 0, 0, 0 };
guchar *tmp_color;
gint radius = (gint) average_radius;
for (i = x - radius; i <= x + radius; i++)
for (j = y - radius; j <= y + radius; j++)
if ((tmp_color = (* get_color_func) (get_color_obj, i, j)))
{
count++;
color_avg[RED_PIX] += tmp_color[RED_PIX];
color_avg[GREEN_PIX] += tmp_color[GREEN_PIX];
color_avg[BLUE_PIX] += tmp_color[BLUE_PIX];
if (has_alpha)
color_avg[ALPHA_PIX] += tmp_color[ALPHA_PIX];
g_free (tmp_color);
}
color[RED_PIX] = (guchar) (color_avg[RED_PIX] / count);
color[GREEN_PIX] = (guchar) (color_avg[GREEN_PIX] / count);
color[BLUE_PIX] = (guchar) (color_avg[BLUE_PIX] / count);
if (has_alpha)
color[ALPHA_PIX] = (guchar) (color_avg[ALPHA_PIX] / count);
is_indexed = FALSE;
}
col_value[RED_PIX] = color[RED_PIX];
col_value[GREEN_PIX] = color[GREEN_PIX];
col_value[BLUE_PIX] = color[BLUE_PIX];
if (has_alpha)
col_value[ALPHA_PIX] = color[ALPHA_PIX];
if (is_indexed)
col_value[4] = color[4];
if (update_active)
palette_set_active_color (col_value [RED_PIX],
col_value [GREEN_PIX],
col_value [BLUE_PIX],
final);
g_free (color);
return TRUE;
}
gboolean
pick_color (GimpImage *gimage,
GimpDrawable *drawable,
gint x,
gint y,
gboolean sample_merged,
gboolean sample_average,
gdouble average_radius,
gint final)
{
return pick_color_do (gimage, drawable,
x, y,
sample_merged,
sample_average,
average_radius,
TRUE,
final);
}
static void
gimp_color_picker_tool_draw (GimpDrawTool *draw_tool)
{
GimpColorPickerTool *cp_tool;
GimpTool *tool;
gint tx, ty;
gint radiusx, radiusy;
gint cx, cy;
if (! gimp_color_picker_tool_options->sample_average)
return;
cp_tool = GIMP_COLOR_PICKER_TOOL (draw_tool);
tool = GIMP_TOOL (draw_tool);
gdisplay_transform_coords (tool->gdisp, cp_tool->centerx, cp_tool->centery,
&tx, &ty, TRUE);
radiusx = SCALEX (tool->gdisp, gimp_color_picker_tool_options->average_radius);
radiusy = SCALEY (tool->gdisp, gimp_color_picker_tool_options->average_radius);
cx = SCALEX (tool->gdisp, 1);
cy = SCALEY (tool->gdisp, 1);
/* Draw the circle around the collecting area */
gdk_draw_rectangle (draw_tool->win, draw_tool->gc, 0,
tx - radiusx,
ty - radiusy,
2 * radiusx + cx, 2 * radiusy + cy);
if (radiusx > 1 && radiusy > 1)
{
gdk_draw_rectangle (draw_tool->win, draw_tool->gc, 0,
tx - radiusx + 2,
ty - radiusy + 2,
2 * radiusx + cx - 4, 2 * radiusy + cy - 4);
}
}
static void
gimp_color_picker_tool_info_update (GimpTool *tool,
gboolean valid)
{
if (!valid)
{
if (GTK_WIDGET_IS_SENSITIVE (color_area))
gtk_widget_set_sensitive (color_area, FALSE);
g_snprintf (red_buf, MAX_INFO_BUF, _("N/A"));
g_snprintf (green_buf, MAX_INFO_BUF, _("N/A"));
g_snprintf (blue_buf, MAX_INFO_BUF, _("N/A"));
g_snprintf (alpha_buf, MAX_INFO_BUF, _("N/A"));
g_snprintf (index_buf, MAX_INFO_BUF, _("N/A"));
g_snprintf (gray_buf, MAX_INFO_BUF, _("N/A"));
g_snprintf (hex_buf, MAX_INFO_BUF, _("N/A"));
}
else
{
GimpRGB color;
guchar r = 0;
guchar g = 0;
guchar b = 0;
guchar a = 0;
if (! GTK_WIDGET_IS_SENSITIVE (color_area))
gtk_widget_set_sensitive (color_area, TRUE);
switch (sample_type)
{
case RGB_GIMAGE: case RGBA_GIMAGE:
g_snprintf (index_buf, MAX_INFO_BUF, _("N/A"));
g_snprintf (red_buf, MAX_INFO_BUF, "%d", col_value [RED_PIX]);
g_snprintf (green_buf, MAX_INFO_BUF, "%d", col_value [GREEN_PIX]);
g_snprintf (blue_buf, MAX_INFO_BUF, "%d", col_value [BLUE_PIX]);
if (sample_type == RGBA_GIMAGE)
g_snprintf (alpha_buf, MAX_INFO_BUF, "%d", col_value [ALPHA_PIX]);
else
g_snprintf (alpha_buf, MAX_INFO_BUF, _("N/A"));
g_snprintf (hex_buf, MAX_INFO_BUF, "#%.2x%.2x%.2x",
col_value [RED_PIX],
col_value [GREEN_PIX],
col_value [BLUE_PIX]);
r = col_value [RED_PIX];
g = col_value [GREEN_PIX];
b = col_value [BLUE_PIX];
if (sample_type == RGBA_GIMAGE)
a = col_value [ALPHA_PIX];
break;
case INDEXED_GIMAGE: case INDEXEDA_GIMAGE:
g_snprintf (index_buf, MAX_INFO_BUF, "%d", col_value [4]);
g_snprintf (red_buf, MAX_INFO_BUF, "%d", col_value [RED_PIX]);
g_snprintf (green_buf, MAX_INFO_BUF, "%d", col_value [GREEN_PIX]);
g_snprintf (blue_buf, MAX_INFO_BUF, "%d", col_value [BLUE_PIX]);
if (sample_type == INDEXEDA_GIMAGE)
g_snprintf (alpha_buf, MAX_INFO_BUF, "%d", col_value [ALPHA_PIX]);
else
g_snprintf (alpha_buf, MAX_INFO_BUF, _("N/A"));
g_snprintf (hex_buf, MAX_INFO_BUF, "#%.2x%.2x%.2x",
col_value [RED_PIX],
col_value [GREEN_PIX],
col_value [BLUE_PIX]);
r = col_value [RED_PIX];
g = col_value [GREEN_PIX];
b = col_value [BLUE_PIX];
if (sample_type == INDEXEDA_GIMAGE)
a = col_value [ALPHA_PIX];
break;
case GRAY_GIMAGE: case GRAYA_GIMAGE:
g_snprintf (gray_buf, MAX_INFO_BUF, "%d", col_value [GRAY_PIX]);
if (sample_type == GRAYA_GIMAGE)
g_snprintf (alpha_buf, MAX_INFO_BUF, "%d", col_value [ALPHA_PIX]);
else
g_snprintf (alpha_buf, MAX_INFO_BUF, _("N/A"));
g_snprintf (hex_buf, MAX_INFO_BUF, "#%.2x%.2x%.2x",
col_value [GRAY_PIX],
col_value [GRAY_PIX],
col_value [GRAY_PIX]);
r = col_value [GRAY_PIX];
g = col_value [GRAY_PIX];
b = col_value [GRAY_PIX];
if (sample_type == GRAYA_GIMAGE)
a = col_value [ALPHA_PIX];
break;
}
gimp_rgba_set_uchar (&color, r, g, b, a);
gimp_color_area_set_color (GIMP_COLOR_AREA (color_area), &color);
}
info_dialog_update (gimp_color_picker_tool_info);
info_dialog_popup (gimp_color_picker_tool_info);
}
static void
gimp_color_picker_tool_info_window_close_callback (GtkWidget *widget,
gpointer client_data)
{
info_dialog_popdown ((InfoDialog *) client_data);
}
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