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gimp/app/tools/gimpfliptool.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 <stdlib.h>
#include <gtk/gtk.h>
#include <gdk/gdkkeysyms.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "base/tile-manager.h"
#include "core/gimpchannel.h"
#include "core/gimpdrawable-transform.h"
#include "core/gimpimage.h"
#include "core/gimpitem-linked.h"
#include "core/gimptoolinfo.h"
#include "widgets/gimphelp-ids.h"
#include "widgets/gimpwidgets-utils.h"
#include "display/gimpdisplay.h"
#include "gimpflipoptions.h"
#include "gimpfliptool.h"
#include "gimptoolcontrol.h"
#include "gimp-intl.h"
/* local function prototypes */
static void gimp_flip_tool_class_init (GimpFlipToolClass *klass);
static void gimp_flip_tool_init (GimpFlipTool *flip_tool);
static void gimp_flip_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *gdisp);
static void gimp_flip_tool_cursor_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *gdisp);
static TileManager * gimp_flip_tool_transform (GimpTransformTool *tool,
GimpItem *item,
GimpDisplay *gdisp);
static GimpTransformToolClass *parent_class = NULL;
/* public functions */
void
gimp_flip_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_FLIP_TOOL,
GIMP_TYPE_FLIP_OPTIONS,
gimp_flip_options_gui,
0,
"gimp-flip-tool",
_("Flip"),
_("Flip the layer or selection"),
N_("/Tools/Transform Tools/_Flip"), "<shift>F",
NULL, GIMP_HELP_TOOL_FLIP,
GIMP_STOCK_TOOL_FLIP,
data);
}
GType
gimp_flip_tool_get_type (void)
{
static GType tool_type = 0;
if (! tool_type)
{
static const GTypeInfo tool_info =
{
sizeof (GimpFlipToolClass),
(GBaseInitFunc) NULL,
(GBaseFinalizeFunc) NULL,
(GClassInitFunc) gimp_flip_tool_class_init,
NULL, /* class_finalize */
NULL, /* class_data */
sizeof (GimpFlipTool),
0, /* n_preallocs */
(GInstanceInitFunc) gimp_flip_tool_init,
};
tool_type = g_type_register_static (GIMP_TYPE_TRANSFORM_TOOL,
"GimpFlipTool",
&tool_info, 0);
}
return tool_type;
}
/* private functions */
static void
gimp_flip_tool_class_init (GimpFlipToolClass *klass)
{
GimpToolClass *tool_class;
GimpTransformToolClass *trans_class;
tool_class = GIMP_TOOL_CLASS (klass);
trans_class = GIMP_TRANSFORM_TOOL_CLASS (klass);
parent_class = g_type_class_peek_parent (klass);
tool_class->modifier_key = gimp_flip_tool_modifier_key;
tool_class->cursor_update = gimp_flip_tool_cursor_update;
trans_class->transform = gimp_flip_tool_transform;
}
static void
gimp_flip_tool_init (GimpFlipTool *flip_tool)
{
GimpTool *tool;
GimpTransformTool *transform_tool;
tool = GIMP_TOOL (flip_tool);
transform_tool = GIMP_TRANSFORM_TOOL (flip_tool);
gimp_tool_control_set_snap_to (tool->control, FALSE);
gimp_tool_control_set_cursor (tool->control,
GDK_SB_H_DOUBLE_ARROW);
gimp_tool_control_set_tool_cursor (tool->control,
GIMP_FLIP_HORIZONTAL_TOOL_CURSOR);
gimp_tool_control_set_toggle_cursor (tool->control,
GDK_SB_V_DOUBLE_ARROW);
gimp_tool_control_set_toggle_tool_cursor (tool->control,
GIMP_FLIP_VERTICAL_TOOL_CURSOR);
transform_tool->use_grid = FALSE;
}
static void
gimp_flip_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpFlipOptions *options;
options = GIMP_FLIP_OPTIONS (tool->tool_info->tool_options);
if (key == GDK_CONTROL_MASK)
{
switch (options->flip_type)
{
case GIMP_ORIENTATION_HORIZONTAL:
g_object_set (options,
"flip-type", GIMP_ORIENTATION_VERTICAL,
NULL);
break;
case GIMP_ORIENTATION_VERTICAL:
g_object_set (options,
"flip-type", GIMP_ORIENTATION_HORIZONTAL,
NULL);
break;
default:
break;
}
}
}
static void
gimp_flip_tool_cursor_update (GimpTool *tool,
GimpCoords *coords,
GdkModifierType state,
GimpDisplay *gdisp)
{
GimpFlipOptions *options;
gboolean bad_cursor = TRUE;
options = GIMP_FLIP_OPTIONS (tool->tool_info->tool_options);
if (gimp_display_coords_in_active_drawable (gdisp, coords))
{
GimpChannel *selection = gimp_image_get_mask (gdisp->gimage);
/* Is there a selected region? If so, is cursor inside? */
if (gimp_channel_is_empty (selection) ||
gimp_channel_value (selection, coords->x, coords->y))
{
bad_cursor = FALSE;
}
}
if (bad_cursor)
{
gimp_tool_control_set_cursor (tool->control, GIMP_BAD_CURSOR);
gimp_tool_control_set_toggle_cursor (tool->control, GIMP_BAD_CURSOR);
}
else
{
gimp_tool_control_set_cursor (tool->control, GDK_SB_H_DOUBLE_ARROW);
gimp_tool_control_set_toggle_cursor (tool->control, GDK_SB_V_DOUBLE_ARROW);
}
gimp_tool_control_set_toggle (tool->control,
options->flip_type == GIMP_ORIENTATION_VERTICAL);
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, gdisp);
}
static TileManager *
gimp_flip_tool_transform (GimpTransformTool *trans_tool,
GimpItem *active_item,
GimpDisplay *gdisp)
{
GimpTransformOptions *tr_options;
GimpFlipOptions *options;
gdouble axis = 0.0;
TileManager *ret = NULL;
options = GIMP_FLIP_OPTIONS (GIMP_TOOL (trans_tool)->tool_info->tool_options);
tr_options = GIMP_TRANSFORM_OPTIONS (options);
switch (options->flip_type)
{
case GIMP_ORIENTATION_HORIZONTAL:
axis = ((gdouble) trans_tool->x1 +
(gdouble) (trans_tool->x2 - trans_tool->x1) / 2.0);
break;
case GIMP_ORIENTATION_VERTICAL:
axis = ((gdouble) trans_tool->y1 +
(gdouble) (trans_tool->y2 - trans_tool->y1) / 2.0);
break;
default:
break;
}
if (gimp_item_get_linked (active_item))
gimp_item_linked_flip (active_item, options->flip_type, axis, FALSE);
switch (tr_options->type)
{
case GIMP_TRANSFORM_TYPE_LAYER:
case GIMP_TRANSFORM_TYPE_SELECTION:
ret = gimp_drawable_transform_tiles_flip (GIMP_DRAWABLE (active_item),
trans_tool->original,
options->flip_type, axis,
FALSE);
break;
case GIMP_TRANSFORM_TYPE_PATH:
gimp_item_flip (active_item, options->flip_type, axis, FALSE);
break;
}
return ret;
}
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