85 lines
2.9 KiB
C++
85 lines
2.9 KiB
C++
/*****************************************************************************
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*
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* This file is part of Mapnik (c++ mapping toolkit)
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*
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* Copyright (C) 2021 Artem Pavlenko
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*
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*****************************************************************************/
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#include "catch.hpp"
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#include <mapnik/map.hpp>
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#include <mapnik/agg_renderer.hpp>
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#if defined(HAVE_CAIRO)
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#include <mapnik/cairo/cairo_renderer.hpp>
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#include <mapnik/cairo/cairo_image_util.hpp>
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#endif
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TEST_CASE("map")
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{
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SECTION("set background - agg")
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{
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mapnik::Map map(256, 256);
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mapnik::image_rgba8 image(map.width(), map.height());
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const mapnik::color c1(255, 0, 0);
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mapnik::fill(image, c1);
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CHECK(image(0, 0) == c1.rgba());
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// Fully transparent black should replace red color
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const mapnik::color c2(0, 0, 0, 0);
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map.set_background(c2);
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mapnik::agg_renderer<mapnik::image_rgba8> ren(map, image);
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ren.apply();
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CHECK(image(0, 0) == c2.rgba());
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}
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#if defined(HAVE_CAIRO)
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SECTION("set background - cairo")
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{
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mapnik::Map map(256, 256);
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mapnik::cairo_surface_ptr image_surface(
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cairo_image_surface_create(CAIRO_FORMAT_ARGB32, map.width(), map.height()),
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mapnik::cairo_surface_closer());
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mapnik::cairo_ptr image_context(mapnik::create_context(image_surface));
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cairo_set_source_rgba(image_context.get(), 1.0, 0.0, 0.0, 1.0);
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cairo_paint(image_context.get());
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{
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mapnik::image_rgba8 image(map.width(), map.height());
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mapnik::cairo_image_to_rgba8(image, image_surface);
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const mapnik::color c1(255, 0, 0);
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CHECK(image(0, 0) == c1.rgba());
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}
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// Fully transparent black should replace red color
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const mapnik::color c2(0, 0, 0, 0);
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map.set_background(c2);
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mapnik::cairo_renderer<mapnik::cairo_ptr> ren(map, image_context, 1.0);
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ren.apply();
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{
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mapnik::image_rgba8 image(map.width(), map.height());
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mapnik::cairo_image_to_rgba8(image, image_surface);
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CHECK(image(0, 0) == c2.rgba());
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}
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}
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#endif
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}
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