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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #include <cppunit/TestAssert.h>
21 : #include <cppunit/TestFixture.h>
22 : #include <cppunit/extensions/HelperMacros.h>
23 :
24 : #include <basegfx/vector/b2isize.hxx>
25 : #include <basegfx/point/b2ipoint.hxx>
26 :
27 : #include <basebmp/color.hxx>
28 : #include <basebmp/scanlineformats.hxx>
29 : #include <basebmp/bitmapdevice.hxx>
30 : #include "tools.hxx"
31 :
32 : using namespace ::basebmp;
33 :
34 : namespace
35 : {
36 30 : class LineTest : public CppUnit::TestFixture
37 : {
38 : private:
39 : BitmapDeviceSharedPtr mpDevice1bpp;
40 : BitmapDeviceSharedPtr mpDevice32bpp;
41 :
42 4 : void implTestBasicDiagonalLines(const BitmapDeviceSharedPtr& rDevice)
43 : {
44 4 : rDevice->clear(Color(0));
45 :
46 4 : const basegfx::B2IPoint aPt1(1,1);
47 8 : const basegfx::B2IPoint aPt2(9,9);
48 4 : const Color aCol(0xFFFFFFFF);
49 4 : rDevice->drawLine( aPt1, aPt2, aCol, DrawMode_PAINT );
50 8 : CPPUNIT_ASSERT_MESSAGE("first pixel set",
51 4 : rDevice->getPixel(aPt1) == aCol);
52 8 : CPPUNIT_ASSERT_MESSAGE("last pixel set",
53 4 : rDevice->getPixel(aPt2) == aCol);
54 8 : const basegfx::B2IPoint aPt3(0,0);
55 8 : CPPUNIT_ASSERT_MESSAGE("topmost pixel not set",
56 4 : rDevice->getPixel(aPt3) != aCol);
57 8 : const basegfx::B2IPoint aPt4(10,10);
58 8 : CPPUNIT_ASSERT_MESSAGE("bottommost pixel not set",
59 4 : rDevice->getPixel(aPt4) != aCol);
60 :
61 8 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 9",
62 4 : countPixel( rDevice, aCol ) == 9);
63 :
64 4 : rDevice->drawLine( aPt2, aPt1, aCol, DrawMode_PAINT );
65 :
66 8 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel after "
67 : "reversed paint is not 9",
68 8 : countPixel( rDevice, aCol ) == 9);
69 4 : }
70 :
71 4 : void implTestBasicHorizontalLines(const BitmapDeviceSharedPtr& rDevice)
72 : {
73 4 : rDevice->clear(Color(0));
74 :
75 4 : const basegfx::B2IPoint aPt1(10,10);
76 8 : const basegfx::B2IPoint aPt2(0,10);
77 4 : const Color aCol(0xFFFFFFFF);
78 4 : rDevice->drawLine( aPt1, aPt2, aCol, DrawMode_PAINT );
79 8 : CPPUNIT_ASSERT_MESSAGE("first pixel set",
80 4 : rDevice->getPixel(aPt1) == aCol);
81 8 : CPPUNIT_ASSERT_MESSAGE("last pixel set",
82 4 : rDevice->getPixel(aPt2) == aCol);
83 8 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 11",
84 4 : countPixel( rDevice, aCol ) == 11);
85 :
86 4 : rDevice->clear(Color(0));
87 4 : rDevice->drawLine( aPt2, aPt1, aCol, DrawMode_PAINT );
88 8 : CPPUNIT_ASSERT_MESSAGE("first pixel set",
89 4 : rDevice->getPixel(aPt1) == aCol);
90 8 : CPPUNIT_ASSERT_MESSAGE("last pixel set",
91 4 : rDevice->getPixel(aPt2) == aCol);
92 8 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 11",
93 8 : countPixel( rDevice, aCol ) == 11);
94 4 : }
95 :
96 4 : void implTestBasicVerticalLines(const BitmapDeviceSharedPtr& rDevice)
97 : {
98 4 : rDevice->clear(Color(0));
99 :
100 4 : const basegfx::B2IPoint aPt1(1,1);
101 8 : const basegfx::B2IPoint aPt2(1,9);
102 4 : const Color aCol(0xFFFFFFFF);
103 4 : rDevice->drawLine( aPt1, aPt2, aCol, DrawMode_PAINT );
104 8 : CPPUNIT_ASSERT_MESSAGE("first pixel set",
105 4 : rDevice->getPixel(aPt1) == aCol);
106 8 : CPPUNIT_ASSERT_MESSAGE("last pixel set",
107 4 : rDevice->getPixel(aPt2) == aCol);
108 8 : const basegfx::B2IPoint aPt3(0,0);
109 8 : CPPUNIT_ASSERT_MESSAGE("topmost pixel not set",
110 4 : rDevice->getPixel(aPt3) != aCol);
111 8 : const basegfx::B2IPoint aPt4(0,10);
112 8 : CPPUNIT_ASSERT_MESSAGE("bottommost pixel not set",
113 4 : rDevice->getPixel(aPt4) != aCol);
114 :
115 8 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel is not 9",
116 8 : countPixel( rDevice, aCol ) == 9);
117 4 : }
118 :
119 : // test pixel rounding (should always tend towards start point of
120 : // the line)
121 4 : void implTestTieBreaking(const BitmapDeviceSharedPtr& rDevice)
122 : {
123 4 : rDevice->clear(Color(0));
124 :
125 4 : const basegfx::B2IPoint aPt1(1,1);
126 8 : const basegfx::B2IPoint aPt2(3,2);
127 4 : const Color aCol(0xFFFFFFFF);
128 4 : rDevice->drawLine( aPt1, aPt2, aCol, DrawMode_PAINT );
129 8 : CPPUNIT_ASSERT_MESSAGE("first pixel set",
130 4 : rDevice->getPixel(aPt1) == aCol);
131 8 : CPPUNIT_ASSERT_MESSAGE("second pixel set",
132 4 : rDevice->getPixel(basegfx::B2IPoint(2,1)) == aCol);
133 8 : CPPUNIT_ASSERT_MESSAGE("last pixel set",
134 4 : rDevice->getPixel(aPt2) == aCol);
135 8 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel after "
136 : "reversed paint is not 3",
137 4 : countPixel( rDevice, aCol ) == 3);
138 :
139 4 : rDevice->drawLine( aPt2, aPt1, aCol, DrawMode_PAINT );
140 8 : CPPUNIT_ASSERT_MESSAGE("alternate second pixel set",
141 4 : rDevice->getPixel(basegfx::B2IPoint(2,2)) == aCol);
142 :
143 8 : CPPUNIT_ASSERT_MESSAGE("number of rendered pixel after "
144 : "reversed paint is not 4",
145 8 : countPixel( rDevice, aCol ) == 4);
146 4 : }
147 :
148 : public:
149 10 : void setUp() SAL_OVERRIDE
150 : {
151 10 : const basegfx::B2ISize aSize(11,11);
152 20 : mpDevice1bpp = createBitmapDevice( aSize,
153 : true,
154 10 : FORMAT_ONE_BIT_MSB_PAL );
155 20 : mpDevice32bpp = createBitmapDevice( aSize,
156 : true,
157 20 : FORMAT_THIRTYTWO_BIT_TC_MASK_BGRA );
158 10 : }
159 :
160 2 : void testCornerCases()
161 : {
162 2 : const basegfx::B2ISize aSize(1,1);
163 : BitmapDeviceSharedPtr pDevice = createBitmapDevice(
164 : aSize,
165 : true,
166 4 : FORMAT_ONE_BIT_MSB_PAL );
167 :
168 4 : const basegfx::B2IPoint aPt1(0,0);
169 4 : const basegfx::B2IPoint aPt2(10,10);
170 4 : CPPUNIT_ASSERT_MESSAGE("only pixel cleared",
171 2 : pDevice->getPixelData(aPt1) == 0);
172 :
173 2 : const Color aCol(0xFFFFFFFF);
174 2 : pDevice->drawLine( aPt1, aPt2, aCol, DrawMode_PAINT );
175 4 : CPPUNIT_ASSERT_MESSAGE("only pixel set",
176 2 : pDevice->getPixelData(aPt1) == 1);
177 :
178 4 : const basegfx::B2ISize aSize2(1,0);
179 4 : pDevice = createBitmapDevice(
180 : aSize2,
181 : true,
182 2 : FORMAT_ONE_BIT_MSB_PAL );
183 :
184 4 : CPPUNIT_ASSERT_MESSAGE("only pixel cleared",
185 2 : pDevice->getPixelData(aPt1) == 0);
186 :
187 2 : pDevice->drawLine( aPt1, aPt2, aCol, DrawMode_PAINT );
188 4 : CPPUNIT_ASSERT_MESSAGE("only pixel still cleared",
189 4 : pDevice->getPixelData(aPt1) == 0);
190 2 : }
191 :
192 2 : void testBasicDiagonalLines()
193 : {
194 2 : implTestBasicDiagonalLines( mpDevice1bpp );
195 2 : implTestBasicDiagonalLines( mpDevice32bpp );
196 2 : }
197 :
198 2 : void testBasicHorizontalLines()
199 : {
200 2 : implTestBasicHorizontalLines( mpDevice1bpp );
201 2 : implTestBasicHorizontalLines( mpDevice32bpp );
202 2 : }
203 :
204 2 : void testBasicVerticalLines()
205 : {
206 2 : implTestBasicVerticalLines( mpDevice1bpp );
207 2 : implTestBasicVerticalLines( mpDevice32bpp );
208 2 : }
209 :
210 : // test pixel rounding (should always tend towards start point of
211 : // the line)
212 2 : void testTieBreaking()
213 : {
214 2 : implTestTieBreaking( mpDevice1bpp );
215 2 : implTestTieBreaking( mpDevice32bpp );
216 2 : }
217 :
218 : // Change the following lines only, if you add, remove or rename
219 : // member functions of the current class,
220 : // because these macros are need by auto register mechanism.
221 :
222 4 : CPPUNIT_TEST_SUITE(LineTest);
223 2 : CPPUNIT_TEST(testCornerCases);
224 2 : CPPUNIT_TEST(testBasicDiagonalLines);
225 2 : CPPUNIT_TEST(testBasicHorizontalLines);
226 2 : CPPUNIT_TEST(testBasicVerticalLines);
227 2 : CPPUNIT_TEST(testTieBreaking);
228 4 : CPPUNIT_TEST_SUITE_END();
229 : };
230 :
231 2 : CPPUNIT_TEST_SUITE_REGISTRATION(LineTest);
232 6 : }
233 :
234 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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