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/* The GIMP -- an image manipulation program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GimpTextLayer
* Copyright (C) 2002-2003 Sven Neumann <sven@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 <glib-object.h>
#include "text-types.h"
#include "core/gimpimage-undo.h"
#include "gimptext.h"
#include "gimptextlayer.h"
#include "gimptextlayer-transform.h"
static void gimp_text_layer_get_trafo (GimpTextLayer *layer,
GimpMatrix2 *trafo);
void
gimp_text_layer_scale (GimpItem *item,
gint new_width,
gint new_height,
gint new_offset_x,
gint new_offset_y,
GimpInterpolationType interpolation_type,
GimpProgressFunc progress_callback,
gpointer progress_data)
{
}
void
gimp_text_layer_flip (GimpItem *item,
GimpContext *context,
GimpOrientationType flip_type,
gdouble axis,
gboolean clip_result)
{
GimpLayer *layer = GIMP_LAYER (item);
GimpMatrix2 text_trafo;
GimpMatrix2 trafo = { { { 1.0, 0.0 }, { 0.0, 1.0 } } };
switch (flip_type)
{
case GIMP_ORIENTATION_HORIZONTAL:
trafo.coeff[0][0] = - 1.0;
break;
case GIMP_ORIENTATION_VERTICAL:
trafo.coeff[1][1] = - 1.0;
break;
case GIMP_ORIENTATION_UNKNOWN:
break;
}
gimp_text_layer_get_trafo (GIMP_TEXT_LAYER (layer), &text_trafo);
gimp_matrix2_mult (&trafo, &text_trafo);
gimp_text_layer_set (GIMP_TEXT_LAYER (layer), NULL,
"transformation", &text_trafo,
NULL);
if (layer->mask)
gimp_item_flip (GIMP_ITEM (layer->mask), context,
flip_type, axis, clip_result);
}
void
gimp_text_layer_rotate (GimpItem *item,
GimpContext *context,
GimpRotationType rotate_type,
gdouble center_x,
gdouble center_y,
gboolean clip_result)
{
GimpLayer *layer = GIMP_LAYER (item);
GimpMatrix2 text_trafo;
GimpMatrix2 trafo;
gdouble cos = 1.0;
gdouble sin = 0.0;
switch (rotate_type)
{
case GIMP_ROTATE_90:
cos = 0.0;
sin = - 1.0;
break;
case GIMP_ROTATE_180:
cos = - 1.0;
sin = 0.0;
break;
case GIMP_ROTATE_270:
cos = 0.0;
sin = 1.0;
break;
}
trafo.coeff[0][0] = cos;
trafo.coeff[0][1] = -sin;
trafo.coeff[1][0] = sin;
trafo.coeff[1][1] = cos;
gimp_text_layer_get_trafo (GIMP_TEXT_LAYER (layer), &text_trafo);
gimp_matrix2_mult (&trafo, &text_trafo);
gimp_text_layer_set (GIMP_TEXT_LAYER (layer), NULL,
"transformation", &text_trafo,
NULL);
if (layer->mask)
gimp_item_rotate (GIMP_ITEM (layer->mask), context,
rotate_type, center_x, center_y, clip_result);
}
void
gimp_text_layer_transform (GimpItem *item,
GimpContext *context,
const GimpMatrix3 *matrix,
GimpTransformDirection direction,
GimpInterpolationType interpolation_type,
gboolean supersample,
gint recursion_level,
gboolean clip_result,
GimpProgressFunc progress_callback,
gpointer progress_data)
{
}
static void
gimp_text_layer_get_trafo (GimpTextLayer *layer,
GimpMatrix2 *trafo)
{
*trafo = layer->text->transformation;
}
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