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comparison Framework/Widgets/TestWorldSceneWidget.cpp @ 0:351ab0da0150

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author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 14 Oct 2016 15:34:11 +0200
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children 7207a407bcd8
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1 /**
2 * Stone of Orthanc
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
4 * Department, University Hospital of Liege, Belgium
5 *
6 * This program is free software: you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation, either version 3 of the
9 * License, or (at your option) any later version.
10 *
11 * In addition, as a special exception, the copyright holders of this
12 * program give permission to link the code of its release with the
13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
14 * that use the same license as the "OpenSSL" library), and distribute
15 * the linked executables. You must obey the GNU General Public License
16 * in all respects for all of the code used other than "OpenSSL". If you
17 * modify file(s) with this exception, you may extend this exception to
18 * your version of the file(s), but you are not obligated to do so. If
19 * you do not wish to do so, delete this exception statement from your
20 * version. If you delete this exception statement from all source files
21 * in the program, then also delete it here.
22 *
23 * This program is distributed in the hope that it will be useful, but
24 * WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
26 * General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
30 **/
31
32
33 #include "TestWorldSceneWidget.h"
34
35 #include <stdio.h>
36
37 namespace OrthancStone
38 {
39 namespace Samples
40 {
41 class TestWorldSceneWidget::Interactor : public IWorldSceneInteractor
42 {
43 public:
44 virtual IWorldSceneMouseTracker* CreateMouseTracker(WorldSceneWidget& widget,
45 const SliceGeometry& slice,
46 const ViewportGeometry& view,
47 MouseButton button,
48 double x,
49 double y,
50 IStatusBar* statusBar)
51 {
52 if (statusBar)
53 {
54 char buf[64];
55 sprintf(buf, "X = %0.2f, Y = %0.2f", x, y);
56 statusBar->SetMessage(buf);
57 }
58
59 return NULL;
60 }
61
62 virtual void MouseOver(CairoContext& context,
63 WorldSceneWidget& widget,
64 const SliceGeometry& slice,
65 const ViewportGeometry& view,
66 double x,
67 double y,
68 IStatusBar* statusBar)
69 {
70 double S = 0.5;
71
72 if (fabs(x) <= S &&
73 fabs(y) <= S)
74 {
75 cairo_t* cr = context.GetObject();
76 cairo_set_source_rgb(cr, 1, 0, 0);
77 cairo_rectangle(cr, -S, -S , 2.0 * S, 2.0 * S);
78 cairo_set_line_width(cr, 1.0 / view.GetZoom());
79 cairo_stroke(cr);
80 }
81 }
82
83 virtual void MouseWheel(WorldSceneWidget& widget,
84 MouseWheelDirection direction,
85 KeyboardModifiers modifiers,
86 IStatusBar* statusBar)
87 {
88 if (statusBar)
89 {
90 statusBar->SetMessage(direction == MouseWheelDirection_Down ? "Wheel down" : "Wheel up");
91 }
92 }
93
94 virtual void KeyPressed(WorldSceneWidget& widget,
95 char key,
96 KeyboardModifiers modifiers,
97 IStatusBar* statusBar)
98 {
99 if (statusBar)
100 {
101 statusBar->SetMessage("Key pressed: \"" + std::string(1, key) + "\"");
102 }
103 }
104 };
105
106
107 bool TestWorldSceneWidget::RenderScene(CairoContext& context,
108 const ViewportGeometry& view)
109 {
110 cairo_t* cr = context.GetObject();
111
112 // Clear background
113 cairo_set_source_rgb(cr, 0, 0, 0);
114 cairo_paint(cr);
115
116 cairo_set_source_rgb(cr, 0, 1, 0);
117 cairo_rectangle(cr, -10, -.5, 20, 1);
118 cairo_fill(cr);
119
120 return true;
121 }
122
123
124 TestWorldSceneWidget::TestWorldSceneWidget() :
125 interactor_(new Interactor)
126 {
127 SetInteractor(*interactor_);
128 }
129
130
131 void TestWorldSceneWidget::GetSceneExtent(double& x1,
132 double& y1,
133 double& x2,
134 double& y2)
135 {
136 x1 = -10;
137 x2 = 10;
138 y1 = -.5;
139 y2 = .5;
140 }
141 }
142 }