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/*************************************************************************
** TpicSpecialTest.cpp **
** **
** This file is part of dvisvgm -- a fast DVI to SVG converter **
** Copyright (C) 2005-2023 Martin Gieseking <martin.gieseking@uos.de> **
** **
** 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 <gtest/gtest.h>
#include <sstream>
#include "SpecialActions.hpp"
#include "TpicSpecialHandler.hpp"
#include "utility.hpp"
#include "XMLNode.hpp"
#include "XMLString.hpp"
using namespace std;
class TpicSpecialTest : public ::testing::Test {
protected:
class ActionsRecorder : public EmptySpecialActions {
public:
ActionsRecorder () : x(), y() {}
void embed (const BoundingBox &bb) override {bbox.embed(bb);}
void setX (double xx) override {x = xx;}
void setY (double yy) override {x = yy;}
double getX () const override {return x;}
double getY () const override {return y;}
Color getColor () const override {return color;}
void setColor (const Color &c) override {color = c;}
const Matrix& getMatrix () const override {static Matrix m(1); return m;}
string getXMLSnippet () const {
ostringstream oss;
for (XMLNode *child : *svgTree().pageNode())
child->write(oss);
return oss.str();
}
void clear () {
SpecialActions::svgTree().reset();
SpecialActions::svgTree().newPage(1);
bbox = BoundingBox(0, 0, 0, 0);
}
private:
double x, y;
Color color;
BoundingBox bbox;
};
class MyTpicSpecialHandler : public TpicSpecialHandler {
public:
explicit MyTpicSpecialHandler (SpecialActions &a) : actions(a) {}
void finishPage () {dviEndPage(0, actions);}
bool processSpecial (const string &cmd, string params="") {
stringstream ss;
ss << params;
return process(cmd, ss, actions);
}
protected:
SpecialActions &actions;
};
public:
TpicSpecialTest () : handler(recorder) {}
void SetUp () override {
XMLString::DECIMAL_PLACES=2;
recorder.clear();
}
protected:
ActionsRecorder recorder;
MyTpicSpecialHandler handler;
};
TEST_F(TpicSpecialTest, name) {
EXPECT_EQ(handler.name(), "tpic");
}
TEST_F(TpicSpecialTest, fail) {
EXPECT_FALSE(handler.processSpecial(""));
EXPECT_FALSE(handler.processSpecial("x"));
EXPECT_FALSE(handler.processSpecial("xy"));
EXPECT_FALSE(handler.processSpecial("xyz"));
EXPECT_FALSE(handler.processSpecial("bk "));
}
TEST_F(TpicSpecialTest, set_fill_intensity) {
EXPECT_LT(handler.grayLevel(), 0); // no fill color set by default
EXPECT_TRUE(handler.processSpecial("bk"));
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1);
EXPECT_TRUE(handler.processSpecial("wh"));
EXPECT_DOUBLE_EQ(handler.grayLevel(), 0);
EXPECT_TRUE(handler.processSpecial("sh"));
EXPECT_DOUBLE_EQ(handler.grayLevel(), 0.5);
EXPECT_TRUE(handler.processSpecial("sh", "0.1"));
EXPECT_DOUBLE_EQ(handler.grayLevel(), 0.1);
EXPECT_TRUE(handler.processSpecial("sh", "0.6"));
EXPECT_DOUBLE_EQ(handler.grayLevel(), 0.6);
EXPECT_TRUE(handler.processSpecial("sh", "2"));
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1);
EXPECT_TRUE(handler.processSpecial("sh", "-2"));
EXPECT_DOUBLE_EQ(handler.grayLevel(), 0);
}
TEST_F(TpicSpecialTest, set_penwidth) {
const double mi2bp=0.072; // milli-inch to PS points
EXPECT_DOUBLE_EQ(handler.penwidth(), 1);
handler.processSpecial("pn", "1000");
EXPECT_DOUBLE_EQ(handler.penwidth(), 1000*mi2bp);
handler.processSpecial("pn", "-10");
EXPECT_DOUBLE_EQ(handler.penwidth(), 0);
}
TEST_F(TpicSpecialTest, dot) {
handler.processSpecial("pn", "1000");
handler.processSpecial("pa", "0 0");
handler.processSpecial("bk");
handler.processSpecial("fp");
EXPECT_EQ(recorder.getXMLSnippet(),
"<circle cx='0' cy='0' r='36'/>"
);
EXPECT_DOUBLE_EQ(handler.penwidth(), 1.0);
EXPECT_LT(handler.grayLevel(), 0);
}
TEST_F(TpicSpecialTest, stroke_polyline) {
handler.processSpecial("pa", "0 0");
handler.processSpecial("pa", "1000 1000");
handler.processSpecial("pa", "1000 0");
handler.processSpecial("fp");
EXPECT_EQ(recorder.getXMLSnippet(),
"<polyline fill='none' stroke-linecap='round' points='0 0 72 72 72 0' stroke='#000'/>"
);
EXPECT_DOUBLE_EQ(handler.penwidth(), 1.0);
EXPECT_LT(handler.grayLevel(), 0);
}
TEST_F(TpicSpecialTest, stroke_polygon) {
handler.processSpecial("pa", "0 0");
handler.processSpecial("pa", "1000 1000");
handler.processSpecial("pa", "1000 0");
handler.processSpecial("pa", "0 0");
handler.processSpecial("pa", "0 0");
handler.processSpecial("fp");
EXPECT_EQ(recorder.getXMLSnippet(),
"<polygon fill='none' points='0 0 72 72 72 0' stroke='#000'/>"
);
EXPECT_DOUBLE_EQ(handler.penwidth(), 1.0);
EXPECT_LT(handler.grayLevel(), 0);
}
TEST_F(TpicSpecialTest, fill_polygon) {
handler.processSpecial("pa", "0 0");
handler.processSpecial("pa", "1000 1000");
handler.processSpecial("pa", "1000 0");
handler.processSpecial("pa", "0 0");
handler.processSpecial("wh");
handler.processSpecial("fp");
EXPECT_EQ(recorder.getXMLSnippet(),
"<polygon fill='#fff' points='0 0 72 72 72 0' stroke='#000'/>"
);
EXPECT_DOUBLE_EQ(handler.penwidth(), 1.0);
EXPECT_LT(handler.grayLevel(), 0);
recorder.clear();
handler.processSpecial("pa", "0 0");
handler.processSpecial("pa", "1000 1000");
handler.processSpecial("pa", "1000 0");
handler.processSpecial("pa", "0 0");
handler.processSpecial("wh");
handler.processSpecial("ip");
EXPECT_EQ(recorder.getXMLSnippet(),
"<polygon fill='#fff' points='0 0 72 72 72 0'/>"
);
EXPECT_DOUBLE_EQ(handler.penwidth(), 1.0);
EXPECT_LT(handler.grayLevel(), 0);
}
TEST_F(TpicSpecialTest, fill_dashed_polygon) {
handler.processSpecial("pa", "0 0");
handler.processSpecial("pa", "1000 1000");
handler.processSpecial("pa", "1000 0");
handler.processSpecial("pa", "0 0");
handler.processSpecial("wh");
handler.processSpecial("da", "2");
EXPECT_EQ(recorder.getXMLSnippet(),
"<polygon fill='#fff' points='0 0 72 72 72 0' stroke='#000' stroke-dasharray='144'/>"
);
EXPECT_DOUBLE_EQ(handler.penwidth(), 1.0);
EXPECT_LT(handler.grayLevel(), 0);
}
TEST_F(TpicSpecialTest, fill_dotted_polygon) {
handler.processSpecial("pn", "500");
handler.processSpecial("pa", "0 0");
handler.processSpecial("pa", "1000 1000");
handler.processSpecial("pa", "1000 0");
handler.processSpecial("pa", "0 0");
handler.processSpecial("wh");
handler.processSpecial("dt", "2 2");
EXPECT_EQ(recorder.getXMLSnippet(),
"<polygon fill='#fff' points='0 0 72 72 72 0' stroke='#000' stroke-width='36' stroke-dasharray='36 144'/>"
);
EXPECT_DOUBLE_EQ(handler.penwidth(), 1.0);
EXPECT_LT(handler.grayLevel(), 0);
}
TEST_F(TpicSpecialTest, stroke_spline) {
handler.processSpecial("pa", "0 0");
handler.processSpecial("pa", "1000 1000");
handler.processSpecial("sp");
EXPECT_EQ(recorder.getXMLSnippet(),
"<polyline fill='none' stroke-linecap='round' points='0 0 72 72' stroke='#000'/>"
);
recorder.clear();
handler.processSpecial("pa", "0 0");
handler.processSpecial("pa", "1000 1000");
handler.processSpecial("pa", "1500 500");
handler.processSpecial("pa", "2000 1000");
handler.processSpecial("pa", "3000 2000");
handler.processSpecial("pa", "1000 500");
handler.processSpecial("sp");
EXPECT_EQ(recorder.getXMLSnippet(),
"<path fill='none' d='M0 0L36 36Q72 72 90 54T126 54T180 108T144 90L72 36' stroke='#000'/>"
);
EXPECT_DOUBLE_EQ(handler.penwidth(), 1.0);
EXPECT_LT(handler.grayLevel(), 0);
}
TEST_F(TpicSpecialTest, stroke_dashed_spline) {
handler.processSpecial("pa", "0 0");
handler.processSpecial("pa", "1000 1000");
handler.processSpecial("pa", "1500 500");
handler.processSpecial("pa", "2000 1000");
handler.processSpecial("pa", "3000 2000");
handler.processSpecial("pa", "0 0");
handler.processSpecial("sp", "1");
EXPECT_EQ(recorder.getXMLSnippet(),
"<path fill='none' d='M0 0L36 36Q72 72 90 54T126 54T180 108T108 72Z' stroke='#000' stroke-dasharray='72'/>"
);
EXPECT_DOUBLE_EQ(handler.penwidth(), 1.0);
EXPECT_LT(handler.grayLevel(), 0);
}
TEST_F(TpicSpecialTest, stroke_dotted_spline) {
handler.processSpecial("pa", "0 0");
handler.processSpecial("pa", "1000 1000");
handler.processSpecial("pa", "1500 500");
handler.processSpecial("pa", "2000 1000");
handler.processSpecial("pa", "3000 2000");
handler.processSpecial("pa", "1000 500");
handler.processSpecial("sp", "-1");
EXPECT_EQ(recorder.getXMLSnippet(),
"<path fill='none' d='M0 0L36 36Q72 72 90 54T126 54T180 108T144 90L72 36' stroke='#000' stroke-dasharray='1 72'/>"
);
EXPECT_DOUBLE_EQ(handler.penwidth(), 1.0);
EXPECT_LT(handler.grayLevel(), 0);
}
TEST_F(TpicSpecialTest, stroke_ellipse) {
handler.processSpecial("ar", "0 0 500 500 0 7");
EXPECT_EQ(recorder.getXMLSnippet(),
"<circle cx='0' cy='0' r='36' stroke='#000' fill='none'/>"
);
recorder.clear();
handler.processSpecial("ar", "0 0 1000 500 0 7");
EXPECT_EQ(recorder.getXMLSnippet(),
"<ellipse cx='0' cy='0' rx='72' ry='36' stroke='#000' fill='none'/>"
);
recorder.clear();
handler.processSpecial("pn", "100");
handler.processSpecial("ar", "0 0 1000 500 -1 -8");
EXPECT_EQ(recorder.getXMLSnippet(),
"<ellipse cx='0' cy='0' rx='72' ry='36' stroke-width='7.2' stroke='#000' fill='none'/>"
);
}
TEST_F(TpicSpecialTest, fill_ellipse) {
handler.processSpecial("bk");
handler.processSpecial("ia", "0 0 500 500 0 7");
EXPECT_EQ(recorder.getXMLSnippet(),
"<circle cx='0' cy='0' r='36'/>"
);
recorder.clear();
handler.processSpecial("bk");
handler.processSpecial("ia", "0 0 1000 500 0 7");
EXPECT_EQ(recorder.getXMLSnippet(),
"<ellipse cx='0' cy='0' rx='72' ry='36'/>"
);
recorder.clear();
handler.processSpecial("pn", "100");
handler.processSpecial("wh");
handler.processSpecial("ia", "0 0 1000 500 -1 -8");
EXPECT_EQ(recorder.getXMLSnippet(),
"<ellipse cx='0' cy='0' rx='72' ry='36' fill='#fff'/>"
);
}
TEST_F(TpicSpecialTest, stroke_arc) {
handler.processSpecial("ar", "0 0 1000 500 0 "+to_string(math::PI/4));
EXPECT_EQ(recorder.getXMLSnippet(),
"<path d='M72 0A72 36 0 0 1 50.91 25.46' stroke='#000' stroke-linecap='round' fill='none'/>"
);
recorder.clear();
handler.processSpecial("ar", "0 0 1000 500 0 "+to_string(math::PI/2));
EXPECT_EQ(recorder.getXMLSnippet(),
"<path d='M72 0A72 36 0 0 1 0 36' stroke='#000' stroke-linecap='round' fill='none'/>"
);
recorder.clear();
handler.processSpecial("ar", "0 0 1000 500 0 "+to_string(3*math::PI/4));
EXPECT_EQ(recorder.getXMLSnippet(),
"<path d='M72 0A72 36 0 0 1-50.91 25.46' stroke='#000' stroke-linecap='round' fill='none'/>"
);
recorder.clear();
handler.processSpecial("ar", "0 0 1000 500 0 "+to_string(math::PI));
EXPECT_EQ(recorder.getXMLSnippet(),
"<path d='M72 0A72 36 0 1 1-72 0' stroke='#000' stroke-linecap='round' fill='none'/>"
);
recorder.clear();
handler.processSpecial("ar", "0 0 1000 500 0 "+to_string(5*math::PI/4));
EXPECT_EQ(recorder.getXMLSnippet(),
"<path d='M72 0A72 36 0 1 1-50.91-25.46' stroke='#000' stroke-linecap='round' fill='none'/>"
);
recorder.clear();
handler.processSpecial("ar", "0 0 1000 500 0 "+to_string(3*math::PI/2));
EXPECT_EQ(recorder.getXMLSnippet(),
"<path d='M72 0A72 36 0 1 1 0-36' stroke='#000' stroke-linecap='round' fill='none'/>"
);
recorder.clear();
handler.processSpecial("ar", "0 0 1000 500 0 "+to_string(-3*math::PI/2));
EXPECT_EQ(recorder.getXMLSnippet(),
"<path d='M72 0A72 36 0 0 1 0 36' stroke='#000' stroke-linecap='round' fill='none'/>"
);
}
TEST_F(TpicSpecialTest, bit_pattern) {
handler.processSpecial("tx", "");
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1);
handler.processSpecial("tx", " \t \n ");
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1);
handler.processSpecial("tx", "INVALID");
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1);
handler.processSpecial("tx", "0");
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1);
handler.processSpecial("tx", "f");
EXPECT_DOUBLE_EQ(handler.grayLevel(), 0);
handler.processSpecial("tx", "1248");
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1.0-4.0/16.0);
handler.processSpecial("tx", "12480");
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1.0-4.0/20.0);
handler.processSpecial("tx", "DEAD BEEF");
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1.0-24.0/32.0);
handler.processSpecial("tx", "123456789abcdef");
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1.0-32.0/60.0);
handler.processSpecial("tx", "123456789ABCDEF0");
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1.0-32.0/64.0);
handler.processSpecial("tx", "1234 5678 9abc def ");
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1.0-32.0/60.0);
handler.processSpecial("tx", "1234 5678 X 9abc def");
EXPECT_DOUBLE_EQ(handler.grayLevel(), 1.0-13.0/32.0);
}
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