Mercurial > hg > orthanc-stone
comparison Framework/Layers/LineMeasureTracker.cpp @ 0:351ab0da0150
initial commit
author | Sebastien Jodogne <s.jodogne@gmail.com> |
---|---|
date | Fri, 14 Oct 2016 15:34:11 +0200 |
parents | |
children | 7207a407bcd8 |
comparison
equal
deleted
inserted
replaced
-1:000000000000 | 0:351ab0da0150 |
---|---|
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 "LineMeasureTracker.h" | |
34 | |
35 #include "../Viewport/CairoFont.h" | |
36 | |
37 #include <stdio.h> | |
38 | |
39 namespace OrthancStone | |
40 { | |
41 LineMeasureTracker::LineMeasureTracker(IStatusBar* statusBar, | |
42 const SliceGeometry& slice, | |
43 double x, | |
44 double y, | |
45 uint8_t red, | |
46 uint8_t green, | |
47 uint8_t blue, | |
48 unsigned int fontSize) : | |
49 statusBar_(statusBar), | |
50 slice_(slice), | |
51 x1_(x), | |
52 y1_(y), | |
53 x2_(x), | |
54 y2_(y), | |
55 fontSize_(fontSize) | |
56 { | |
57 color_[0] = red; | |
58 color_[1] = green; | |
59 color_[2] = blue; | |
60 } | |
61 | |
62 | |
63 void LineMeasureTracker::Render(CairoContext& context, | |
64 double zoom) | |
65 { | |
66 context.SetSourceColor(color_[0], color_[1], color_[2]); | |
67 | |
68 cairo_t* cr = context.GetObject(); | |
69 cairo_set_line_width(cr, 2.0 / zoom); | |
70 cairo_move_to(cr, x1_, y1_); | |
71 cairo_line_to(cr, x2_, y2_); | |
72 cairo_stroke(cr); | |
73 | |
74 if (fontSize_ != 0) | |
75 { | |
76 cairo_move_to(cr, x2_, y2_ - static_cast<double>(fontSize_) / zoom); | |
77 CairoFont font("sans-serif", CAIRO_FONT_SLANT_NORMAL, CAIRO_FONT_WEIGHT_NORMAL); | |
78 font.Draw(context, FormatLength(), static_cast<double>(fontSize_) / zoom); | |
79 } | |
80 } | |
81 | |
82 | |
83 double LineMeasureTracker::GetLength() const // In millimeters | |
84 { | |
85 Vector a = slice_.MapSliceToWorldCoordinates(x1_, y1_); | |
86 Vector b = slice_.MapSliceToWorldCoordinates(x2_, y2_); | |
87 return boost::numeric::ublas::norm_2(b - a); | |
88 } | |
89 | |
90 | |
91 std::string LineMeasureTracker::FormatLength() const | |
92 { | |
93 char buf[64]; | |
94 sprintf(buf, "%0.01f cm", GetLength() / 10.0); | |
95 return buf; | |
96 } | |
97 | |
98 void LineMeasureTracker::MouseMove(double x, | |
99 double y) | |
100 { | |
101 x2_ = x; | |
102 y2_ = y; | |
103 | |
104 if (statusBar_ != NULL) | |
105 { | |
106 statusBar_->SetMessage("Line length: " + FormatLength()); | |
107 } | |
108 } | |
109 } |