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gimp/app/widgets/gimpcolorframe.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 "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpimage.h"
#include "gimpcolorframe.h"
#include "gimpenumcombobox.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_color_frame_class_init (GimpColorFrameClass *klass);
static void gimp_color_frame_init (GimpColorFrame *frame);
static void gimp_color_frame_menu_callback (GtkWidget *widget,
GimpColorFrame *frame);
static void gimp_color_frame_update (GimpColorFrame *frame);
static GimpFrameClass *parent_class = NULL;
GType
gimp_color_frame_get_type (void)
{
static GType type = 0;
if (! type)
{
static const GTypeInfo frame_info =
{
sizeof (GimpColorFrameClass),
NULL, /* base_init */
NULL, /* base_finalize */
(GClassInitFunc) gimp_color_frame_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpColorFrame),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_color_frame_init,
};
type = g_type_register_static (GIMP_TYPE_FRAME,
"GimpColorFrame",
&frame_info, 0);
}
return type;
}
static void
gimp_color_frame_class_init (GimpColorFrameClass *klass)
{
parent_class = g_type_class_peek_parent (klass);
}
static void
gimp_color_frame_init (GimpColorFrame *frame)
{
GtkWidget *table;
gint i;
frame->sample_valid = FALSE;
frame->sample_type = GIMP_RGB_IMAGE;
gimp_rgba_set (&frame->color, 0.0, 0.0, 0.0, GIMP_OPACITY_OPAQUE);
frame->menu = gimp_enum_combo_box_new (GIMP_TYPE_COLOR_FRAME_MODE);
g_signal_connect (frame->menu, "changed",
G_CALLBACK (gimp_color_frame_menu_callback),
frame);
gtk_frame_set_label_widget (GTK_FRAME (frame), frame->menu);
gtk_widget_show (frame->menu);
table = gtk_table_new (GIMP_COLOR_FRAME_ROWS, 2, FALSE);
gtk_container_set_border_width (GTK_CONTAINER (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
for (i = 0; i < GIMP_COLOR_FRAME_ROWS; i++)
{
frame->name_labels[i] = gtk_label_new (" ");
gtk_misc_set_alignment (GTK_MISC (frame->name_labels[i]), 1.0, 0.5);
gtk_table_attach (GTK_TABLE (table), frame->name_labels[i],
0, 1, i, i + 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (frame->name_labels[i]);
frame->value_labels[i] = gtk_label_new (" ");
gtk_label_set_selectable (GTK_LABEL (frame->value_labels[i]), TRUE);
gtk_misc_set_alignment (GTK_MISC (frame->value_labels[i]), 0.0, 0.5);
gtk_table_attach (GTK_TABLE (table), frame->value_labels[i],
1, 2, i, i + 1,
GTK_SHRINK | GTK_FILL, GTK_SHRINK | GTK_FILL, 0, 0);
gtk_widget_show (frame->value_labels[i]);
}
}
/**
* gimp_color_frame_new:
*
* Creates a new #GimpColorFrame widget.
*
* Return value: The new #GimpColorFrame widget.
**/
GtkWidget *
gimp_color_frame_new (void)
{
return g_object_new (GIMP_TYPE_COLOR_FRAME, NULL);
}
/**
* gimp_color_frame_set_mode:
* @frame: The #GimpColorFrame.
* @mode: The new @mode.
*
* Sets the #GimpColorFrame's color @mode. Calling this function does
* the same as selecting the @mode from the frame's #GtkOptionMenu.
**/
void
gimp_color_frame_set_mode (GimpColorFrame *frame,
GimpColorFrameMode mode)
{
g_return_if_fail (GIMP_IS_COLOR_FRAME (frame));
gimp_int_combo_box_set_active (GIMP_INT_COMBO_BOX (frame->menu), mode);
frame->frame_mode = mode;
gimp_color_frame_update (frame);
}
/**
* gimp_color_frame_set_color:
* @frame: The #GimpColorFrame.
* @sample_type: The type of the #GimpDrawable or #GimpImage the @color
* was picked from.
* @color: The @color to set.
* @color_index: The @color's index. This value is ignored unless
* @sample_type equals to #GIMP_INDEXED_IMAGE or
* #GIMP_INDEXEDA_IMAGE.
*
* Sets the color sample to display in the #GimpColorFrame.
**/
void
gimp_color_frame_set_color (GimpColorFrame *frame,
GimpImageType sample_type,
const GimpRGB *color,
gint color_index)
{
g_return_if_fail (GIMP_IS_COLOR_FRAME (frame));
g_return_if_fail (color != NULL);
frame->sample_valid = TRUE;
frame->sample_type = sample_type;
frame->color = *color;
frame->color_index = color_index;
gimp_color_frame_update (frame);
}
/**
* gimp_color_frame_set_invalid:
* @frame: The #GimpColorFrame.
*
* Tells the #GimpColorFrame that the current sample is invalid. All labels
* visible for the current color space will show "n/a" (not available).
*
* There is no special API for setting the frame to "valid" again because
* this happens automatically when calling gimp_color_frame_set_color().
**/
void
gimp_color_frame_set_invalid (GimpColorFrame *frame)
{
g_return_if_fail (GIMP_IS_COLOR_FRAME (frame));
frame->sample_valid = FALSE;
gimp_color_frame_update (frame);
}
/* private functions */
static void
gimp_color_frame_menu_callback (GtkWidget *widget,
GimpColorFrame *frame)
{
gimp_int_combo_box_get_active (GIMP_INT_COMBO_BOX (widget),
(gint *) &frame->frame_mode);
gimp_color_frame_update (frame);
}
static void
gimp_color_frame_update (GimpColorFrame *frame)
{
const gchar *names[GIMP_COLOR_FRAME_ROWS] = { NULL, };
gchar *values[GIMP_COLOR_FRAME_ROWS] = { NULL, };
gboolean has_alpha;
gint alpha_row = 3;
guchar r, g, b, a;
gint i;
has_alpha = GIMP_IMAGE_TYPE_HAS_ALPHA (frame->sample_type);
gimp_rgba_get_uchar (&frame->color, &r, &g, &b, &a);
switch (frame->frame_mode)
{
case GIMP_COLOR_FRAME_MODE_PIXEL:
switch (GIMP_IMAGE_TYPE_BASE_TYPE (frame->sample_type))
{
case GIMP_INDEXED:
names[4] = _("Index:");
values[4] = g_strdup_printf ("%d", frame->color_index);
case GIMP_RGB:
names[0] = _("Red:");
names[1] = _("Green:");
names[2] = _("Blue:");
values[0] = g_strdup_printf ("%d", r);
values[1] = g_strdup_printf ("%d", g);
values[2] = g_strdup_printf ("%d", b);
alpha_row = 3;
break;
case GIMP_GRAY:
names[0] = _("Value:");
values[0] = g_strdup_printf ("%d", r);
alpha_row = 1;
break;
}
break;
case GIMP_COLOR_FRAME_MODE_RGB:
names[0] = _("Red:");
names[1] = _("Green:");
names[2] = _("Blue:");
values[0] = g_strdup_printf ("%d %%", ROUND (frame->color.r * 100.0));
values[1] = g_strdup_printf ("%d %%", ROUND (frame->color.g * 100.0));
values[2] = g_strdup_printf ("%d %%", ROUND (frame->color.b * 100.0));
alpha_row = 3;
names[4] = _("Hex:");
values[4] = g_strdup_printf ("%.2x%.2x%.2x", r, g, b);
break;
case GIMP_COLOR_FRAME_MODE_HSV:
{
GimpHSV hsv;
gimp_rgb_to_hsv (&frame->color, &hsv);
names[0] = _("Hue:");
names[1] = _("Sat.:");
names[2] = _("Value:");
values[0] = g_strdup_printf ("%d \302\260", ROUND (hsv.h * 360.0));
values[1] = g_strdup_printf ("%d %%", ROUND (hsv.s * 100.0));
values[2] = g_strdup_printf ("%d %%", ROUND (hsv.v * 100.0));
alpha_row = 3;
}
break;
case GIMP_COLOR_FRAME_MODE_CMYK:
{
GimpCMYK cmyk;
gimp_rgb_to_cmyk (&frame->color, 1.0, &cmyk);
names[0] = _("Cyan:");
names[1] = _("Yellow:");
names[2] = _("Magenta:");
names[3] = _("Black:");
values[0] = g_strdup_printf ("%d %%", ROUND (cmyk.c * 100.0));
values[1] = g_strdup_printf ("%d %%", ROUND (cmyk.m * 100.0));
values[2] = g_strdup_printf ("%d %%", ROUND (cmyk.y * 100.0));
values[3] = g_strdup_printf ("%d %%", ROUND (cmyk.k * 100.0));
alpha_row = 4;
}
break;
}
if (has_alpha)
{
names[alpha_row] = _("Alpha:");
if (frame->frame_mode == GIMP_COLOR_FRAME_MODE_PIXEL)
values[alpha_row] = g_strdup_printf ("%d", a);
else
values[alpha_row] = g_strdup_printf ("%d %%",
(gint) (frame->color.a * 100.0));
}
for (i = 0; i < GIMP_COLOR_FRAME_ROWS; i++)
{
if (names[i] && values[i])
{
gtk_label_set_text (GTK_LABEL (frame->name_labels[i]), names[i]);
if (frame->sample_valid)
gtk_label_set_text (GTK_LABEL (frame->value_labels[i]), values[i]);
else
gtk_label_set_text (GTK_LABEL (frame->value_labels[i]), _("n/a"));
}
else
{
gtk_label_set_text (GTK_LABEL (frame->name_labels[i]), " ");
gtk_label_set_text (GTK_LABEL (frame->value_labels[i]), " ");
}
}
}
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