gimp/app/tools/gimpfliptool.c

237 lines
8.0 KiB
C

/* GIMP - The GNU 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <string.h>
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpwidgets/gimpwidgets.h"
#include "tools-types.h"
#include "core/gimpdrawable-transform.h"
#include "core/gimpimage.h"
#include "core/gimpitem-linked.h"
#include "core/gimplayer.h"
#include "core/gimplayermask.h"
#include "core/gimppickable.h"
#include "widgets/gimphelp-ids.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_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display);
static void gimp_flip_tool_cursor_update (GimpTool *tool,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display);
static TileManager * gimp_flip_tool_transform (GimpTransformTool *tool,
GimpItem *item,
gboolean mask_empty,
GimpDisplay *display);
G_DEFINE_TYPE (GimpFlipTool, gimp_flip_tool, GIMP_TYPE_TRANSFORM_TOOL)
#define parent_class gimp_flip_tool_parent_class
void
gimp_flip_tool_register (GimpToolRegisterCallback callback,
gpointer data)
{
(* callback) (GIMP_TYPE_FLIP_TOOL,
GIMP_TYPE_FLIP_OPTIONS,
gimp_flip_options_gui,
GIMP_CONTEXT_BACKGROUND_MASK,
"gimp-flip-tool",
_("Flip"),
_("Flip Tool: "
"Reverse the layer, selection or path horizontally or vertically"),
N_("_Flip"), "<shift>F",
NULL, GIMP_HELP_TOOL_FLIP,
GIMP_STOCK_TOOL_FLIP,
data);
}
static void
gimp_flip_tool_class_init (GimpFlipToolClass *klass)
{
GimpToolClass *tool_class = GIMP_TOOL_CLASS (klass);
GimpTransformToolClass *trans_class = GIMP_TRANSFORM_TOOL_CLASS (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 = GIMP_TOOL (flip_tool);
GimpTransformTool *tr_tool = GIMP_TRANSFORM_TOOL (flip_tool);
gimp_tool_control_set_snap_to (tool->control, FALSE);
gimp_tool_control_set_precision (tool->control,
GIMP_CURSOR_PRECISION_PIXEL_CENTER);
gimp_tool_control_set_cursor (tool->control, GIMP_CURSOR_MOUSE);
gimp_tool_control_set_toggle_cursor (tool->control, GIMP_CURSOR_MOUSE);
gimp_tool_control_set_tool_cursor (tool->control,
GIMP_TOOL_CURSOR_FLIP_HORIZONTAL);
gimp_tool_control_set_toggle_tool_cursor (tool->control,
GIMP_TOOL_CURSOR_FLIP_VERTICAL);
tr_tool->undo_desc = C_("command", "Flip");
}
static void
gimp_flip_tool_modifier_key (GimpTool *tool,
GdkModifierType key,
gboolean press,
GdkModifierType state,
GimpDisplay *display)
{
GimpFlipOptions *options = GIMP_FLIP_TOOL_GET_OPTIONS (tool);
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,
const GimpCoords *coords,
GdkModifierType state,
GimpDisplay *display)
{
GimpFlipOptions *options = GIMP_FLIP_TOOL_GET_OPTIONS (tool);
GimpCursorModifier modifier = GIMP_CURSOR_MODIFIER_BAD;
GimpImage *image = gimp_display_get_image (display);
if (gimp_image_coords_in_active_pickable (image, coords,
FALSE, TRUE))
{
modifier = GIMP_CURSOR_MODIFIER_NONE;
}
gimp_tool_control_set_cursor_modifier (tool->control, modifier);
gimp_tool_control_set_toggle_cursor_modifier (tool->control, modifier);
gimp_tool_control_set_toggled (tool->control,
options->flip_type ==
GIMP_ORIENTATION_VERTICAL);
GIMP_TOOL_CLASS (parent_class)->cursor_update (tool, coords, state, display);
}
static TileManager *
gimp_flip_tool_transform (GimpTransformTool *trans_tool,
GimpItem *active_item,
gboolean mask_empty,
GimpDisplay *display)
{
GimpFlipOptions *options = GIMP_FLIP_TOOL_GET_OPTIONS (trans_tool);
GimpTransformOptions *tr_options = GIMP_TRANSFORM_OPTIONS (options);
GimpContext *context = GIMP_CONTEXT (options);
gdouble axis = 0.0;
TileManager *ret = NULL;
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, context, options->flip_type, axis,
FALSE);
if (GIMP_IS_LAYER (active_item) &&
gimp_layer_get_mask (GIMP_LAYER (active_item)) &&
mask_empty)
{
GimpLayerMask *mask = gimp_layer_get_mask (GIMP_LAYER (active_item));
gimp_item_flip (GIMP_ITEM (mask), context,
options->flip_type, axis, FALSE);
}
switch (tr_options->type)
{
case GIMP_TRANSFORM_TYPE_LAYER:
case GIMP_TRANSFORM_TYPE_SELECTION:
if (trans_tool->original)
ret = gimp_drawable_transform_tiles_flip (GIMP_DRAWABLE (active_item),
context,
trans_tool->original,
options->flip_type, axis,
FALSE);
break;
case GIMP_TRANSFORM_TYPE_PATH:
gimp_item_flip (active_item, context, options->flip_type, axis, FALSE);
break;
}
return ret;
}