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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/pixel-region.h"
#include "base/tile-manager.h"
#include "paint-funcs/paint-funcs.h"
#include "core/gimpdrawable.h"
#include "core/gimpimage.h"
#include "core/gimpimage-mask.h"
#include "core/gimplayer.h"
#include "gdisplay.h"
#include "gdisplay_ops.h"
#include "undo.h"
#include "path_transform.h"
#include "gimpfliptool.h"
#include "tool_manager.h"
#include "tool_options.h"
#include "libgimp/gimpintl.h"
#define WANT_FLIP_BITS
#include "icons.h"
/* FIXME: Lame - 1 hacks abound since the code assumes certain values for
* the ORIENTATION_FOO constants.
*/
#define FLIP_INFO 0
typedef struct _FlipOptions FlipOptions;
struct _FlipOptions
{
GimpToolOptions tool_options;
InternalOrientationType type;
InternalOrientationType type_d;
GtkWidget *type_w[2];
};
/* 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_destroy (GtkObject *object);
static void gimp_flip_tool_cursor_update (GimpTool *tool,
GdkEventMotion *mevent,
GDisplay *gdisp);
static void gimp_flip_tool_modifier_key (GimpTool *tool,
GdkEventKey *kevent,
GDisplay *gdisp);
static TileManager * gimp_flip_tool_transform (GimpTransformTool *tool,
GDisplay *gdisp,
TransformState state);
static FlipOptions * flip_options_new (void);
static void flip_options_reset (GimpToolOptions *tool_options);
static FlipOptions *flip_options = NULL;
static GimpTransformToolClass *parent_class = NULL;
/* public functions */
void
gimp_flip_tool_register (Gimp *gimp)
{
tool_manager_register_tool (gimp,
GIMP_TYPE_FLIP_TOOL,
FALSE,
"gimp:flip_tool",
_("Flip Tool"),
_("Flip the layer or selection"),
N_("/Tools/Transform Tools/Flip"), "<shift>F",
NULL, "tools/flip.html",
(const gchar **) flip_bits);
}
GtkType
gimp_flip_tool_get_type (void)
{
static GtkType tool_type = 0;
if (! tool_type)
{
GtkTypeInfo tool_info =
{
"GimpFlipTool",
sizeof (GimpFlipTool),
sizeof (GimpFlipToolClass),
(GtkClassInitFunc) gimp_flip_tool_class_init,
(GtkObjectInitFunc) gimp_flip_tool_init,
/* reserved_1 */ NULL,
/* reserved_2 */ NULL,
(GtkClassInitFunc) NULL,
};
tool_type = gtk_type_unique (GIMP_TYPE_TRANSFORM_TOOL, &tool_info);
}
return tool_type;
}
TileManager *
flip_tool_flip (GimpImage *gimage,
GimpDrawable *drawable,
TileManager *orig,
gint flip,
InternalOrientationType type)
{
TileManager *new;
PixelRegion srcPR, destPR;
gint orig_width;
gint orig_height;
gint orig_bpp;
gint orig_x, orig_y;
gint i;
if (! orig)
return NULL;
orig_width = tile_manager_width (orig);
orig_height = tile_manager_height (orig);
orig_bpp = tile_manager_bpp (orig);
tile_manager_get_offsets (orig, &orig_x, &orig_y);
if (flip > 0)
{
new = tile_manager_new (orig_width, orig_height, orig_bpp);
pixel_region_init (&srcPR, orig,
0, 0, orig_width, orig_height, FALSE);
pixel_region_init (&destPR, new,
0, 0, orig_width, orig_height, TRUE);
copy_region (&srcPR, &destPR);
tile_manager_set_offsets (new, orig_x, orig_y);
}
else
{
new = tile_manager_new (orig_width, orig_height, orig_bpp);
tile_manager_set_offsets (new, orig_x, orig_y);
if (type == ORIENTATION_HORIZONTAL)
for (i = 0; i < orig_width; i++)
{
pixel_region_init (&srcPR, orig, i, 0, 1, orig_height, FALSE);
pixel_region_init (&destPR, new,
(orig_width - i - 1), 0, 1, orig_height, TRUE);
copy_region (&srcPR, &destPR);
}
else
for (i = 0; i < orig_height; i++)
{
pixel_region_init (&srcPR, orig, 0, i, orig_width, 1, FALSE);
pixel_region_init (&destPR, new,
0, (orig_height - i - 1), orig_width, 1, TRUE);
copy_region (&srcPR, &destPR);
}
/* flip locked paths */
/* Note that the undo structures etc are setup before we enter this
* function.
*/
if (type == ORIENTATION_HORIZONTAL)
path_transform_flip_horz (gimage);
else
path_transform_flip_vert (gimage);
}
return new;
}
/* private functions */
static void
gimp_flip_tool_class_init (GimpFlipToolClass *klass)
{
GtkObjectClass *object_class;
GimpToolClass *tool_class;
GimpDrawToolClass *draw_class;
GimpTransformToolClass *trans_class;
object_class = (GtkObjectClass *) klass;
tool_class = (GimpToolClass *) klass;
draw_class = (GimpDrawToolClass *) klass;
trans_class = (GimpTransformToolClass *) klass;
parent_class = gtk_type_class (GIMP_TYPE_TRANSFORM_TOOL);
object_class->destroy = gimp_flip_tool_destroy;
tool_class->cursor_update = gimp_flip_tool_cursor_update;
tool_class->modifier_key = gimp_flip_tool_modifier_key;
draw_class->draw = NULL;
trans_class->transform = gimp_flip_tool_transform;
}
static void
gimp_flip_tool_init (GimpFlipTool *flip_tool)
{
GimpTool *tool;
GimpTransformTool *tr_tool;
tool = GIMP_TOOL (flip_tool);
tr_tool = GIMP_TRANSFORM_TOOL (flip_tool);
/* The tool options */
if (! flip_options)
{
flip_options = flip_options_new ();
tool_manager_register_tool_options (GIMP_TYPE_FLIP_TOOL,
(GimpToolOptions *) flip_options);
}
tool->tool_cursor = GIMP_FLIP_HORIZONTAL_TOOL_CURSOR;
tool->toggle_cursor = GIMP_FLIP_VERTICAL_TOOL_CURSOR;
tool->auto_snap_to = FALSE; /* Don't snap to guides */
tr_tool->trans_info[FLIP_INFO] = -1.0;
}
static void
gimp_flip_tool_destroy (GtkObject *object)
{
GimpFlipTool *flip_tool;
GimpTool *tool;
flip_tool = GIMP_FLIP_TOOL (object);
tool = GIMP_TOOL (flip_tool);
if (GTK_OBJECT_CLASS (parent_class)->destroy)
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static void
gimp_flip_tool_cursor_update (GimpTool *tool,
GdkEventMotion *mevent,
GDisplay *gdisp)
{
GimpDrawable *drawable;
GdkCursorType ctype = GIMP_BAD_CURSOR;
GimpToolCursorType tool_cursor = GIMP_FLIP_HORIZONTAL_TOOL_CURSOR;
if ((drawable = gimp_image_active_drawable (gdisp->gimage)))
{
gint x, y;
gint off_x, off_y;
gimp_drawable_offsets (drawable, &off_x, &off_y);
gdisplay_untransform_coords (gdisp,
(double) mevent->x, (double) mevent->y,
&x, &y, TRUE, FALSE);
if (x >= off_x && y >= off_y &&
x < (off_x + gimp_drawable_width (drawable)) &&
y < (off_y + gimp_drawable_height (drawable)))
{
/* Is there a selected region? If so, is cursor inside? */
if (gimage_mask_is_empty (gdisp->gimage) ||
gimage_mask_value (gdisp->gimage, x, y))
{
if (flip_options->type == ORIENTATION_HORIZONTAL)
ctype = GDK_SB_H_DOUBLE_ARROW;
else
ctype = GDK_SB_V_DOUBLE_ARROW;
}
}
}
if (flip_options->type == ORIENTATION_HORIZONTAL)
tool_cursor = GIMP_FLIP_HORIZONTAL_TOOL_CURSOR;
else
tool_cursor = GIMP_FLIP_VERTICAL_TOOL_CURSOR;
gdisplay_install_tool_cursor (gdisp,
ctype,
tool_cursor,
GIMP_CURSOR_MODIFIER_NONE);
}
static void
gimp_flip_tool_modifier_key (GimpTool *tool,
GdkEventKey *kevent,
GDisplay *gdisp)
{
switch (kevent->keyval)
{
case GDK_Alt_L: case GDK_Alt_R:
break;
case GDK_Shift_L: case GDK_Shift_R:
break;
case GDK_Control_L: case GDK_Control_R:
if (flip_options->type == ORIENTATION_HORIZONTAL)
{
gtk_toggle_button_set_active
(GTK_TOGGLE_BUTTON (flip_options->type_w[ORIENTATION_VERTICAL - 1]), TRUE);
}
else
{
gtk_toggle_button_set_active
(GTK_TOGGLE_BUTTON (flip_options->type_w[ORIENTATION_HORIZONTAL - 1]), TRUE);
}
break;
}
}
static TileManager *
gimp_flip_tool_transform (GimpTransformTool *trans_tool,
GDisplay *gdisp,
TransformState state)
{
GimpTool *tool;
tool = GIMP_TOOL (trans_tool);
switch (state)
{
case TRANSFORM_INIT:
transform_info = NULL;
break;
case TRANSFORM_MOTION:
break;
case TRANSFORM_RECALC:
break;
case TRANSFORM_FINISH:
return flip_tool_flip (gdisp->gimage,
gimp_image_active_drawable (gdisp->gimage),
trans_tool->original,
(gint) trans_tool->trans_info[FLIP_INFO],
flip_options->type);
break;
}
return NULL;
}
static FlipOptions *
flip_options_new (void)
{
FlipOptions *options;
GtkWidget *vbox;
GtkWidget *frame;
options = g_new0 (FlipOptions, 1);
tool_options_init ((GimpToolOptions *) options,
flip_options_reset);
options->type = options->type_d = ORIENTATION_HORIZONTAL;
/* the main vbox */
vbox = options->tool_options.main_vbox;
/* tool toggle */
frame =
gimp_radio_group_new2 (TRUE, _("Tool Toggle"),
G_CALLBACK (gimp_radio_button_update),
&options->type,
(gpointer) options->type,
_("Horizontal"), (gpointer) ORIENTATION_HORIZONTAL,
&options->type_w[0],
_("Vertical"), (gpointer) ORIENTATION_VERTICAL,
&options->type_w[1],
NULL);
gtk_box_pack_start (GTK_BOX (vbox), frame, FALSE, FALSE, 0);
gtk_widget_show (frame);
return options;
}
static void
flip_options_reset (GimpToolOptions *tool_options)
{
FlipOptions *options;
options = (FlipOptions *) tool_options;
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->type_w[options->type_d - 1]), TRUE);
}
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