Mercurial > hg > orthanc-stone
annotate OrthancStone/Sources/Scene2D/Internals/CairoInfoPanelRenderer.cpp @ 1870:3889ae96d2e9
added copyright UCLouvain
| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 11 Jan 2022 11:04:09 +0100 |
| parents | 9ac2a65d4172 |
| children | 7053b8a0aaec |
| rev | line source |
|---|---|
| 597 | 1 /** |
| 2 * Stone of Orthanc | |
| 3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
| 4 * Department, University Hospital of Liege, Belgium | |
|
1739
9ac2a65d4172
upgrade to year 2021
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1598
diff
changeset
|
5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
|
1870
3889ae96d2e9
added copyright UCLouvain
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1739
diff
changeset
|
6 * Copyright (C) 2021-2021 Sebastien Jodogne, ICTEAM UCLouvain, Belgium |
| 597 | 7 * |
| 8 * This program is free software: you can redistribute it and/or | |
|
1598
8563ea5d8ae4
relicensing some files, cf. osimis bm26 and chu agreement on 2020-05-20
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1596
diff
changeset
|
9 * modify it under the terms of the GNU Lesser General Public License |
| 597 | 10 * as published by the Free Software Foundation, either version 3 of |
| 11 * the License, or (at your option) any later version. | |
| 12 * | |
| 13 * This program is distributed in the hope that it will be useful, but | |
| 14 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
|
1598
8563ea5d8ae4
relicensing some files, cf. osimis bm26 and chu agreement on 2020-05-20
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1596
diff
changeset
|
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
8563ea5d8ae4
relicensing some files, cf. osimis bm26 and chu agreement on 2020-05-20
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1596
diff
changeset
|
16 * Lesser General Public License for more details. |
|
1596
4fb8fdf03314
removed annoying whitespace
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1571
diff
changeset
|
17 * |
|
1598
8563ea5d8ae4
relicensing some files, cf. osimis bm26 and chu agreement on 2020-05-20
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1596
diff
changeset
|
18 * You should have received a copy of the GNU Lesser General Public |
|
8563ea5d8ae4
relicensing some files, cf. osimis bm26 and chu agreement on 2020-05-20
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1596
diff
changeset
|
19 * License along with this program. If not, see |
|
8563ea5d8ae4
relicensing some files, cf. osimis bm26 and chu agreement on 2020-05-20
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
1596
diff
changeset
|
20 * <http://www.gnu.org/licenses/>. |
| 597 | 21 **/ |
| 22 | |
| 23 | |
| 24 #include "CairoInfoPanelRenderer.h" | |
| 25 | |
| 26 #include "../InfoPanelSceneLayer.h" | |
| 27 | |
| 28 namespace OrthancStone | |
| 29 { | |
| 30 namespace Internals | |
| 31 { | |
| 32 void CairoInfoPanelRenderer::Update(const ISceneLayer& layer) | |
| 33 { | |
| 34 const InfoPanelSceneLayer& l = dynamic_cast<const InfoPanelSceneLayer&>(layer); | |
| 35 | |
| 36 texture_.Copy(l.GetTexture(), true); | |
| 37 anchor_ = l.GetAnchor(); | |
| 38 isLinearInterpolation_ = l.IsLinearInterpolation(); | |
|
1325
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
39 applySceneRotation_ = l.ShouldApplySceneRotation(); |
| 597 | 40 } |
| 41 | |
|
888
6e888cf6a48b
renderers now have access to canvas width/height
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
597
diff
changeset
|
42 void CairoInfoPanelRenderer::Render(const AffineTransform2D& transform, |
|
6e888cf6a48b
renderers now have access to canvas width/height
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
597
diff
changeset
|
43 unsigned int canvasWidth, |
|
6e888cf6a48b
renderers now have access to canvas width/height
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
597
diff
changeset
|
44 unsigned int canvasHeight) |
| 597 | 45 { |
| 46 int dx, dy; | |
| 47 InfoPanelSceneLayer::ComputeAnchorLocation( | |
| 48 dx, dy, anchor_, texture_.GetWidth(), texture_.GetHeight(), | |
|
888
6e888cf6a48b
renderers now have access to canvas width/height
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
597
diff
changeset
|
49 canvasWidth, canvasHeight); |
| 597 | 50 |
| 51 cairo_t* cr = target_.GetCairoContext(); | |
| 52 cairo_save(cr); | |
| 53 | |
|
1325
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
54 if (applySceneRotation_) |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
55 { |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
56 // the transformation is as follows: |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
57 // - originally, the image is aligned so that its top left corner |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
58 // is at 0,0 |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
59 // - first, we translate the image by -w/2,-h/2 |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
60 // - then we rotate it, so that the next rotation will make the |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
61 // image rotate around its center. |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
62 // - then, we translate the image by +w/2,+h/2 to put it |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
63 // back in place |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
64 // - the fourth and last transform is the one that brings the |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
65 // image to its desired anchored location. |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
66 |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
67 int32_t halfWidth = |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
68 static_cast<int32_t>(0.5 * texture_.GetWidth()); |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
69 |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
70 int32_t halfHeight = |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
71 static_cast<int32_t>(0.5 * texture_.GetHeight()); |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
72 |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
73 const Matrix& sceneTransformM = transform.GetHomogeneousMatrix(); |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
74 Matrix r; |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
75 Matrix q; |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
76 LinearAlgebra::RQDecomposition3x3(r, q, sceneTransformM); |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
77 |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
78 // first, put the scene rotation in a cairo matrix |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
79 cairo_matrix_t m; |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
80 cairo_matrix_init( |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
81 &m, q(0, 0), q(1, 0), q(0, 1), q(1, 1), q(0, 2), q(1, 2)); |
| 597 | 82 |
|
1325
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
83 // now let's build the transform piece by piece |
| 1571 | 84 // first translation (directly written in `t`) |
| 85 cairo_matrix_t t; | |
| 86 cairo_matrix_init_identity(&t); | |
| 87 cairo_matrix_translate(&t, -halfWidth, -halfHeight); | |
|
1325
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
88 |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
89 // then the rotation |
| 1571 | 90 cairo_matrix_multiply(&t, &t, &m); |
|
1325
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
91 |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
92 // then the second translation |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
93 { |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
94 cairo_matrix_t translation2; |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
95 cairo_matrix_init_translate(&translation2, halfWidth, halfHeight); |
| 1571 | 96 cairo_matrix_multiply(&t, &t, &m); |
|
1325
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
97 } |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
98 |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
99 // then the last translation |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
100 { |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
101 cairo_matrix_t translation3; |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
102 cairo_matrix_init_translate(&translation3, dx, dy); |
| 1571 | 103 cairo_matrix_multiply(&t, &t, &translation3); |
|
1325
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
104 } |
| 1571 | 105 cairo_transform(cr, &t); |
|
1325
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
106 } |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
107 else |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
108 { |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
109 cairo_matrix_t t; |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
110 cairo_matrix_init_identity(&t); |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
111 cairo_matrix_translate(&t, dx, dy); |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
112 cairo_transform(cr, &t); |
|
be17fed8c7c5
Added flag in InfoPanelSceneLayer to
Benjamin Golinvaux <bgo@osimis.io>
parents:
1270
diff
changeset
|
113 } |
| 597 | 114 cairo_set_operator(cr, CAIRO_OPERATOR_OVER); |
| 115 cairo_set_source_surface(cr, texture_.GetObject(), 0, 0); | |
| 116 | |
| 117 if (isLinearInterpolation_) | |
| 118 { | |
| 119 cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_BILINEAR); | |
| 120 } | |
| 121 else | |
| 122 { | |
| 123 cairo_pattern_set_filter(cairo_get_source(cr), CAIRO_FILTER_NEAREST); | |
| 124 } | |
| 125 | |
| 126 cairo_paint(cr); | |
| 127 | |
| 128 cairo_restore(cr); | |
| 129 } | |
| 130 } | |
| 131 } |