1/*
2 * Copyright (c) 2020 - 2023 the ThorVG project. All rights reserved.
3
4 * Permission is hereby granted, free of charge, to any person obtaining a copy
5 * of this software and associated documentation files (the "Software"), to deal
6 * in the Software without restriction, including without limitation the rights
7 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
8 * copies of the Software, and to permit persons to whom the Software is
9 * furnished to do so, subject to the following conditions:
10
11 * The above copyright notice and this permission notice shall be included in all
12 * copies or substantial portions of the Software.
13
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
17 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
18 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
19 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
20 * SOFTWARE.
21 */
22
23#include "tvgMath.h"
24#include "tvgRender.h"
25
26/************************************************************************/
27/* Internal Class Implementation */
28/************************************************************************/
29
30
31/************************************************************************/
32/* External Class Implementation */
33/************************************************************************/
34
35void RenderTransform::override(const Matrix& m)
36{
37 this->m = m;
38
39 if (m.e11 == 0.0f && m.e12 == 0.0f && m.e13 == 0.0f &&
40 m.e21 == 0.0f && m.e22 == 0.0f && m.e23 == 0.0f &&
41 m.e31 == 0.0f && m.e32 == 0.0f && m.e33 == 0.0f) {
42 overriding = false;
43 } else overriding = true;
44}
45
46
47bool RenderTransform::update()
48{
49 if (overriding) return true;
50
51 //Init Status
52 if (mathZero(x) && mathZero(y) && mathZero(degree) && mathEqual(scale, 1)) return false;
53
54 mathIdentity(&m);
55
56 mathScale(&m, scale, scale);
57
58 if (!mathZero(degree)) mathRotate(&m, degree);
59
60 mathTranslate(&m, x, y);
61
62 return true;
63}
64
65
66RenderTransform::RenderTransform()
67{
68}
69
70
71RenderTransform::RenderTransform(const RenderTransform* lhs, const RenderTransform* rhs)
72{
73 m = mathMultiply(&lhs->m, &rhs->m);
74}
75