mirror of https://github.com/GNOME/gimp.git
112 lines
3.1 KiB
C
112 lines
3.1 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"
|
|
|
|
|
|
static void gimp_text_layout_render_trafo (GimpTextLayout *layout,
|
|
cairo_matrix_t *trafo);
|
|
|
|
|
|
void
|
|
gimp_text_layout_render (GimpTextLayout *layout,
|
|
cairo_t *cr,
|
|
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*/
|
|
if (pango_layout_get_width (pango_layout) > 0)
|
|
{
|
|
gint width;
|
|
|
|
pango_layout_get_pixel_size (pango_layout, &width, NULL);
|
|
|
|
switch (pango_layout_get_alignment (pango_layout))
|
|
{
|
|
case PANGO_ALIGN_LEFT:
|
|
break;
|
|
|
|
case PANGO_ALIGN_RIGHT:
|
|
x += PANGO_PIXELS (pango_layout_get_width (pango_layout)) - width;
|
|
break;
|
|
|
|
case PANGO_ALIGN_CENTER:
|
|
x += (PANGO_PIXELS (pango_layout_get_width (pango_layout))
|
|
- width) / 2;
|
|
break;
|
|
}
|
|
}
|
|
|
|
cairo_translate (cr, x, y);
|
|
|
|
gimp_text_layout_render_trafo (layout, &trafo);
|
|
cairo_transform (cr, &trafo);
|
|
|
|
if (path)
|
|
pango_cairo_layout_path (cr, pango_layout);
|
|
else
|
|
pango_cairo_show_layout (cr, pango_layout);
|
|
}
|
|
|
|
|
|
static void
|
|
gimp_text_layout_render_trafo (GimpTextLayout *layout,
|
|
cairo_matrix_t *trafo)
|
|
{
|
|
GimpText *text = gimp_text_layout_get_text (layout);
|
|
gdouble xres;
|
|
gdouble yres;
|
|
gdouble norm;
|
|
|
|
gimp_text_layout_get_resolution (layout, &xres, &yres);
|
|
|
|
norm = 1.0 / yres * xres;
|
|
|
|
trafo->xx = text->transformation.coeff[0][0] * norm;
|
|
trafo->xy = text->transformation.coeff[0][1] * 1.0;
|
|
trafo->yx = text->transformation.coeff[1][0] * norm;
|
|
trafo->yy = text->transformation.coeff[1][1] * 1.0;
|
|
trafo->x0 = 0;
|
|
trafo->y0 = 0;
|
|
}
|