Gimp/app/text/gimptextlayout-render.c
Michael Natterer ea7495a95c app: take the rendering direction into account when adjusting the x-offset
Move the layout to the right edge of the bounding box if LTR and RIGHT
*or* RTL and LEFT.
2010-02-21 17:47:21 +01:00

84 lines
2.6 KiB
C

/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* GimpText
* 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 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 <pango/pangocairo.h>
#include "text-types.h"
#include "base/pixel-region.h"
#include "base/tile-manager.h"
#include "gimptext.h"
#include "gimptextlayout.h"
#include "gimptextlayout-render.h"
void
gimp_text_layout_render (GimpTextLayout *layout,
cairo_t *cr,
GimpTextDirection base_dir,
gboolean path)
{
PangoLayout *pango_layout;
cairo_matrix_t trafo;
gint x, y;
g_return_if_fail (GIMP_IS_TEXT_LAYOUT (layout));
g_return_if_fail (cr != NULL);
gimp_text_layout_get_offsets (layout, &x, &y);
pango_layout = gimp_text_layout_get_pango_layout (layout);
/* If the width of the layout is > 0, then the text-box is FIXED and
* the layout position should be offset if the alignment is centered
* or right-aligned, also adjust for RTL text direction.
*/
if (pango_layout_get_width (pango_layout) > 0)
{
PangoAlignment align = pango_layout_get_alignment (pango_layout);
gint width;
pango_layout_get_pixel_size (pango_layout, &width, NULL);
if ((base_dir == GIMP_TEXT_DIRECTION_LTR && align == PANGO_ALIGN_RIGHT) ||
(base_dir == GIMP_TEXT_DIRECTION_RTL && align == PANGO_ALIGN_LEFT))
{
x += PANGO_PIXELS (pango_layout_get_width (pango_layout)) - width;
}
else if (align == PANGO_ALIGN_CENTER)
{
x += (PANGO_PIXELS (pango_layout_get_width (pango_layout))
- width) / 2;
}
}
cairo_translate (cr, x, y);
gimp_text_layout_get_transform (layout, &trafo);
cairo_transform (cr, &trafo);
if (path)
pango_cairo_layout_path (cr, pango_layout);
else
pango_cairo_show_layout (cr, pango_layout);
}