mirror of https://github.com/GNOME/gimp.git
158 lines
4.7 KiB
C
158 lines
4.7 KiB
C
/* The GIMP -- an image manipulation program
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* Copyright (C) 1995 Spencer Kimball and Peter Mattis
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*
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* GimpTextLayer
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* Copyright (C) 2002-2003 Sven Neumann <sven@gimp.org>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include <glib-object.h>
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#include "text-types.h"
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#include "core/gimpimage-undo.h"
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#include "gimptext.h"
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#include "gimptextlayer.h"
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#include "gimptextlayer-transform.h"
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static void gimp_text_layer_get_trafo (GimpTextLayer *layer,
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GimpMatrix2 *trafo);
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void
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gimp_text_layer_scale (GimpItem *item,
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gint new_width,
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gint new_height,
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gint new_offset_x,
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gint new_offset_y,
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GimpInterpolationType interpolation_type,
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GimpProgressFunc progress_callback,
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gpointer progress_data)
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{
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}
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void
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gimp_text_layer_flip (GimpItem *item,
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GimpContext *context,
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GimpOrientationType flip_type,
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gdouble axis,
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gboolean clip_result)
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{
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GimpLayer *layer = GIMP_LAYER (item);
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GimpMatrix2 text_trafo;
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GimpMatrix2 trafo = { { { 1.0, 0.0 }, { 0.0, 1.0 } } };
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switch (flip_type)
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{
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case GIMP_ORIENTATION_HORIZONTAL:
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trafo.coeff[0][0] = - 1.0;
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break;
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case GIMP_ORIENTATION_VERTICAL:
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trafo.coeff[1][1] = - 1.0;
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break;
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case GIMP_ORIENTATION_UNKNOWN:
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break;
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}
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gimp_text_layer_get_trafo (GIMP_TEXT_LAYER (layer), &text_trafo);
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gimp_matrix2_mult (&trafo, &text_trafo);
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gimp_text_layer_set (GIMP_TEXT_LAYER (layer), NULL,
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"transformation", &text_trafo,
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NULL);
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if (layer->mask)
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gimp_item_flip (GIMP_ITEM (layer->mask), context,
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flip_type, axis, clip_result);
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}
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void
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gimp_text_layer_rotate (GimpItem *item,
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GimpContext *context,
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GimpRotationType rotate_type,
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gdouble center_x,
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gdouble center_y,
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gboolean clip_result)
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{
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GimpLayer *layer = GIMP_LAYER (item);
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GimpMatrix2 text_trafo;
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GimpMatrix2 trafo;
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gdouble cos = 1.0;
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gdouble sin = 0.0;
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switch (rotate_type)
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{
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case GIMP_ROTATE_90:
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cos = 0.0;
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sin = - 1.0;
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break;
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case GIMP_ROTATE_180:
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cos = - 1.0;
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sin = 0.0;
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break;
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case GIMP_ROTATE_270:
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cos = 0.0;
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sin = 1.0;
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break;
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}
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trafo.coeff[0][0] = cos;
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trafo.coeff[0][1] = -sin;
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trafo.coeff[1][0] = sin;
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trafo.coeff[1][1] = cos;
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gimp_text_layer_get_trafo (GIMP_TEXT_LAYER (layer), &text_trafo);
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gimp_matrix2_mult (&trafo, &text_trafo);
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gimp_text_layer_set (GIMP_TEXT_LAYER (layer), NULL,
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"transformation", &text_trafo,
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NULL);
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if (layer->mask)
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gimp_item_rotate (GIMP_ITEM (layer->mask), context,
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rotate_type, center_x, center_y, clip_result);
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}
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void
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gimp_text_layer_transform (GimpItem *item,
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GimpContext *context,
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const GimpMatrix3 *matrix,
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GimpTransformDirection direction,
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GimpInterpolationType interpolation_type,
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gboolean supersample,
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gint recursion_level,
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gboolean clip_result,
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GimpProgressFunc progress_callback,
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gpointer progress_data)
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{
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}
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static void
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gimp_text_layer_get_trafo (GimpTextLayer *layer,
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GimpMatrix2 *trafo)
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{
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*trafo = layer->text->transformation;
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}
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