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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 "apptypes.h"
#include "cursorutil.h"
#include "drawable.h"
#include "gdisplay.h"
#include "gimage_mask.h"
#include "gimpimage.h"
#include "paint_funcs.h"
#include "path_transform.h"
#include "pixel_region.h"
#include "temp_buf.h"
#include "tile_manager.h"
#include "flip_tool.h"
#include "tool_options.h"
#include "tools.h"
#include "transform_core.h"
#include "libgimp/gimpintl.h"
#define FLIP_INFO 0
/* the flip structures */
typedef struct _FlipOptions FlipOptions;
struct _FlipOptions
{
ToolOptions tool_options;
InternalOrientationType type;
InternalOrientationType type_d;
GtkWidget *type_w[2];
};
/* local function prototypes */
static TileManager * flip_tool_transform (Tool *tool,
GDisplay *gdisp,
TransformState state);
/* private variables */
static FlipOptions *flip_options = NULL;
/* functions */
/* FIXME: Lame - 1 hacks abound since the code assumes certain values for
* the ORIENTATION_FOO constants.
*/
static void
flip_options_reset (void)
{
FlipOptions *options = flip_options;
gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (options->type_w[options->type_d - 1]), TRUE);
}
static FlipOptions *
flip_options_new (void)
{
FlipOptions *options;
GtkWidget *vbox;
GtkWidget *frame;
/* the new flip tool options structure */
options = g_new (FlipOptions, 1);
tool_options_init ((ToolOptions *) options,
_("Flip Tool"),
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"),
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_modifier_key_func (Tool *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 *
flip_tool_transform (Tool *tool,
GDisplay *gdisp,
TransformState state)
{
TransformCore *transform_core;
transform_core = (TransformCore *) tool->private;
switch (state)
{
case TRANSFORM_INIT:
transform_info = NULL;
break;
case TRANSFORM_MOTION:
break;
case TRANSFORM_RECALC:
break;
case TRANSFORM_FINISH:
/* transform_core->trans_info[FLIP] *= -1.0;*/
return flip_tool_flip (gdisp->gimage,
gimp_image_active_drawable (gdisp->gimage),
transform_core->original,
(int) transform_core->trans_info[FLIP_INFO],
flip_options->type);
break;
}
return NULL;
}
static void
flip_cursor_update (Tool *tool,
GdkEventMotion *mevent,
GDisplay *gdisp)
{
GimpDrawable *drawable;
GdkCursorType ctype = GIMP_BAD_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;
}
}
}
gdisplay_install_tool_cursor (gdisp,
ctype,
ctype == GDK_SB_H_DOUBLE_ARROW ?
GIMP_FLIP_HORIZONTAL_TOOL_CORSOR :
GIMP_FLIP_VERTICAL_TOOL_CORSOR,
CURSOR_MODIFIER_NONE);
}
Tool *
tools_new_flip (void)
{
Tool *tool;
TransformCore *private;
/* The tool options */
if (! flip_options)
{
flip_options = flip_options_new ();
tools_register (FLIP, (ToolOptions *) flip_options);
}
tool = transform_core_new (FLIP, FALSE);
private = tool->private;
private->trans_func = flip_tool_transform;
private->trans_info[FLIP_INFO] = -1.0;
tool->modifier_key_func = flip_modifier_key_func;
tool->cursor_update_func = flip_cursor_update;
return tool;
}
void
tools_free_flip_tool (Tool *tool)
{
transform_core_free (tool);
}
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;
}
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