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gimp/app/widgets/gimpcursorview.c

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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpcursorview.c
* Copyright (C) 2005 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 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 <string.h>
#include <gtk/gtk.h>
#include "libgimpbase/gimpbase.h"
#include "libgimpcolor/gimpcolor.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpimage.h"
#include "core/gimppickable.h"
#include "core/gimpunit.h"
#include "gimpcolorframe.h"
#include "gimpcursorview.h"
#include "gimpdocked.h"
#include "gimpsessioninfo.h"
#include "gimp-intl.h"
static void gimp_cursor_view_class_init (GimpCursorViewClass *klass);
static void gimp_cursor_view_init (GimpCursorView *view);
static void gimp_cursor_view_docked_iface_init (GimpDockedInterface *docked_iface);
static void gimp_cursor_view_set_aux_info (GimpDocked *docked,
GList *aux_info);
static GList *gimp_cursor_view_get_aux_info (GimpDocked *docked);
static void gimp_cursor_view_style_set (GtkWidget *widget,
GtkStyle *prev_style);
static GimpEditorClass *parent_class = NULL;
GType
gimp_cursor_view_get_type (void)
{
static GType type = 0;
if (! type)
{
static const GTypeInfo view_info =
{
sizeof (GimpCursorViewClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_cursor_view_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpCursorView),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_cursor_view_init,
};
static const GInterfaceInfo docked_iface_info =
{
(GInterfaceInitFunc) gimp_cursor_view_docked_iface_init,
NULL, /* iface_finalize */
NULL /* iface_data */
};
type = g_type_register_static (GIMP_TYPE_EDITOR,
"GimpCursorView",
&view_info, 0);
g_type_add_interface_static (type, GIMP_TYPE_DOCKED,
&docked_iface_info);
}
return type;
}
static void
gimp_cursor_view_class_init (GimpCursorViewClass* klass)
{
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
widget_class->style_set = gimp_cursor_view_style_set;
}
static void
gimp_cursor_view_init (GimpCursorView *view)
{
GtkWidget *frame;
GtkWidget *table;
gint content_spacing;
gtk_widget_style_get (GTK_WIDGET (view),
"content_spacing", &content_spacing,
NULL);
/* cursor information */
view->coord_hbox = gtk_hbox_new (TRUE, content_spacing);
gtk_box_pack_start (GTK_BOX (view), view->coord_hbox, FALSE, FALSE, 0);
gtk_widget_show (view->coord_hbox);
frame = gimp_frame_new (_("Pixels"));
gtk_box_pack_start (GTK_BOX (view->coord_hbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
table = gtk_table_new (2, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 6);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
view->pixel_x_label = gtk_label_new (_("n/a"));
gtk_misc_set_alignment (GTK_MISC (view->pixel_x_label), 1.0, 0.5);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("X"), 0.5, 0.5,
view->pixel_x_label, 1, FALSE);
view->pixel_y_label = gtk_label_new (_("n/a"));
gtk_misc_set_alignment (GTK_MISC (view->pixel_y_label), 1.0, 0.5);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("Y"), 0.5, 0.5,
view->pixel_y_label, 1, FALSE);
frame = gimp_frame_new (_("Units"));
gtk_box_pack_start (GTK_BOX (view->coord_hbox), frame, TRUE, TRUE, 0);
gtk_widget_show (frame);
table = gtk_table_new (2, 2, FALSE);
gtk_table_set_col_spacings (GTK_TABLE (table), 4);
gtk_table_set_row_spacings (GTK_TABLE (table), 2);
gtk_container_add (GTK_CONTAINER (frame), table);
gtk_widget_show (table);
view->unit_x_label = gtk_label_new (_("n/a"));
gtk_misc_set_alignment (GTK_MISC (view->unit_x_label), 1.0, 0.5);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 0,
_("X"), 0.5, 0.5,
view->unit_x_label, 1, FALSE);
view->unit_y_label = gtk_label_new (_("n/a"));
gtk_misc_set_alignment (GTK_MISC (view->unit_y_label), 1.0, 0.5);
gimp_table_attach_aligned (GTK_TABLE (table), 0, 1,
_("Y"), 0.5, 0.5,
view->unit_y_label, 1, FALSE);
/* color information */
view->color_hbox = gtk_hbox_new (TRUE, content_spacing);
gtk_box_pack_start (GTK_BOX (view), view->color_hbox, FALSE, FALSE, 0);
gtk_widget_show (view->color_hbox);
view->color_frame_1 = gimp_color_frame_new ();
gimp_color_frame_set_mode (GIMP_COLOR_FRAME (view->color_frame_1),
GIMP_COLOR_FRAME_MODE_PIXEL);
gtk_box_pack_start (GTK_BOX (view->color_hbox), view->color_frame_1,
TRUE, TRUE, 0);
gtk_widget_show (view->color_frame_1);
view->color_frame_2 = gimp_color_frame_new ();
gimp_color_frame_set_mode (GIMP_COLOR_FRAME (view->color_frame_2),
GIMP_COLOR_FRAME_MODE_RGB);
gtk_box_pack_start (GTK_BOX (view->color_hbox), view->color_frame_2,
TRUE, TRUE, 0);
gtk_widget_show (view->color_frame_2);
}
static void
gimp_cursor_view_docked_iface_init (GimpDockedInterface *docked_iface)
{
docked_iface->set_aux_info = gimp_cursor_view_set_aux_info;
docked_iface->get_aux_info = gimp_cursor_view_get_aux_info;
}
#define AUX_INFO_FRAME_1_MODE "frame-1-mode"
#define AUX_INFO_FRAME_2_MODE "frame-2-mode"
static void
gimp_cursor_view_set_aux_info (GimpDocked *docked,
GList *aux_info)
{
GimpCursorView *view = GIMP_CURSOR_VIEW (docked);
GList *list;
for (list = aux_info; list; list = g_list_next (list))
{
GimpSessionInfoAux *aux = list->data;
GtkWidget *frame = NULL;
if (! strcmp (aux->name, AUX_INFO_FRAME_1_MODE))
frame = view->color_frame_1;
else if (! strcmp (aux->name, AUX_INFO_FRAME_2_MODE))
frame = view->color_frame_2;
if (frame)
{
GEnumClass *enum_class;
GEnumValue *enum_value;
enum_class = g_type_class_peek (GIMP_TYPE_COLOR_FRAME_MODE);
enum_value = g_enum_get_value_by_nick (enum_class, aux->value);
if (enum_value)
gimp_color_frame_set_mode (GIMP_COLOR_FRAME (frame),
enum_value->value);
}
}
}
static GList *
gimp_cursor_view_get_aux_info (GimpDocked *docked)
{
GimpCursorView *view = GIMP_CURSOR_VIEW (docked);
GList *aux_info = NULL;
const gchar *nick;
GimpSessionInfoAux *aux;
if (gimp_enum_get_value (GIMP_TYPE_COLOR_FRAME_MODE,
GIMP_COLOR_FRAME (view->color_frame_1)->frame_mode,
NULL, &nick, NULL, NULL))
{
aux = gimp_session_info_aux_new (AUX_INFO_FRAME_1_MODE, nick);
aux_info = g_list_append (aux_info, aux);
}
if (gimp_enum_get_value (GIMP_TYPE_COLOR_FRAME_MODE,
GIMP_COLOR_FRAME (view->color_frame_2)->frame_mode,
NULL, &nick, NULL, NULL))
{
aux = gimp_session_info_aux_new (AUX_INFO_FRAME_2_MODE, nick);
aux_info = g_list_append (aux_info, aux);
}
return aux_info;
}
static void
gimp_cursor_view_style_set (GtkWidget *widget,
GtkStyle *prev_style)
{
GimpCursorView *view = GIMP_CURSOR_VIEW (widget);
gint content_spacing;
if (GTK_WIDGET_CLASS (parent_class)->style_set)
GTK_WIDGET_CLASS (parent_class)->style_set (widget, prev_style);
gtk_widget_style_get (GTK_WIDGET (view),
"content_spacing", &content_spacing,
NULL);
gtk_box_set_spacing (GTK_BOX (view->coord_hbox), content_spacing);
gtk_box_set_spacing (GTK_BOX (view->color_hbox), content_spacing);
}
/* public functions */
GtkWidget *
gimp_cursor_view_new (void)
{
return g_object_new (GIMP_TYPE_CURSOR_VIEW, NULL);
}
void
gimp_cursor_view_update_cursor (GimpCursorView *view,
GimpImage *image,
GimpUnit unit,
gdouble x,
gdouble y)
{
GimpPickable *pickable = NULL;
guchar *color = NULL;
g_return_if_fail (GIMP_IS_CURSOR_VIEW (view));
g_return_if_fail (image == NULL || GIMP_IS_IMAGE (image));
if (image && unit == GIMP_UNIT_PIXEL)
unit = gimp_image_get_unit (image);
if (image)
{
gboolean in_image;
gdouble unit_factor;
gint unit_digits;
const gchar *unit_str;
gchar format_buf[32];
gchar buf[32];
in_image = (x >= 0.0 && x < gimp_image_get_width (image) &&
y >= 0.0 && y < gimp_image_get_height (image));
unit_factor = _gimp_unit_get_factor (image->gimp, unit);
unit_digits = _gimp_unit_get_digits (image->gimp, unit);
unit_str = _gimp_unit_get_abbreviation (image->gimp, unit);
#define FORMAT_STRING(s) (in_image ? (s) : "("s")")
g_snprintf (buf, sizeof (buf), FORMAT_STRING ("%d"), (gint) floor (x));
gtk_label_set_text (GTK_LABEL (view->pixel_x_label), buf);
g_snprintf (buf, sizeof (buf), FORMAT_STRING ("%d"), (gint) floor (y));
gtk_label_set_text (GTK_LABEL (view->pixel_y_label), buf);
g_snprintf (format_buf, sizeof (format_buf),
FORMAT_STRING ("%%.%df %s"), unit_digits, unit_str);
g_snprintf (buf, sizeof (buf), format_buf,
x * unit_factor / image->xresolution);
gtk_label_set_text (GTK_LABEL (view->unit_x_label), buf);
g_snprintf (buf, sizeof (buf), format_buf,
y * unit_factor / image->yresolution);
gtk_label_set_text (GTK_LABEL (view->unit_y_label), buf);
}
else
{
gtk_label_set_text (GTK_LABEL (view->pixel_x_label), _("n/a"));
gtk_label_set_text (GTK_LABEL (view->pixel_y_label), _("n/a"));
gtk_label_set_text (GTK_LABEL (view->unit_x_label), _("n/a"));
gtk_label_set_text (GTK_LABEL (view->unit_y_label), _("n/a"));
}
if (image)
{
pickable = GIMP_PICKABLE (image->projection);
color = gimp_pickable_get_color_at (pickable,
(gint) floor (x), (gint) floor (y));
}
if (color)
{
GimpImageType sample_type;
GimpRGB rgb;
sample_type = gimp_pickable_get_image_type (pickable);
gimp_rgba_set_uchar (&rgb,
color[RED_PIX],
color[GREEN_PIX],
color[BLUE_PIX],
color[ALPHA_PIX]);
gimp_color_frame_set_color (GIMP_COLOR_FRAME (view->color_frame_1),
sample_type, &rgb, -1);
gimp_color_frame_set_color (GIMP_COLOR_FRAME (view->color_frame_2),
sample_type, &rgb, -1);
g_free (color);
}
else
{
gimp_color_frame_set_invalid (GIMP_COLOR_FRAME (view->color_frame_1));
gimp_color_frame_set_invalid (GIMP_COLOR_FRAME (view->color_frame_2));
}
}
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