annotate Framework/Layers/LineMeasureTracker.cpp @ 585:b9ce24c606ae

TextSceneLayer
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 19 Apr 2019 17:57:58 +0200
parents 3b4df9925db6
children 4f2416d519b4
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1 /**
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2 * Stone of Orthanc
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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b70e9be013e4 preparing for 2019
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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22 #include "LineMeasureTracker.h"
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24 #include <stdio.h>
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26 namespace OrthancStone
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27 {
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28 LineMeasureTracker::LineMeasureTracker(IStatusBar* statusBar,
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29 const CoordinateSystem3D& slice,
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30 double x,
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31 double y,
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32 uint8_t red,
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33 uint8_t green,
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34 uint8_t blue,
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35 const Orthanc::Font& font) :
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36 statusBar_(statusBar),
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37 slice_(slice),
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38 x1_(x),
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39 y1_(y),
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40 x2_(x),
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41 y2_(y),
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42 font_(font)
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43 {
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44 color_[0] = red;
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45 color_[1] = green;
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46 color_[2] = blue;
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47 }
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50 void LineMeasureTracker::Render(CairoContext& context,
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51 double zoom)
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52 {
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53 context.SetSourceColor(color_[0], color_[1], color_[2]);
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55 cairo_t* cr = context.GetObject();
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56 cairo_set_line_width(cr, 2.0 / zoom);
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57 cairo_move_to(cr, x1_, y1_);
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58 cairo_line_to(cr, x2_, y2_);
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59 cairo_stroke(cr);
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60
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61 if (y2_ - y1_ < 0)
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62 {
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63 context.DrawText(font_, FormatLength(), x2_, y2_ - 5, BitmapAnchor_BottomCenter);
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64 }
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65 else
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66 {
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67 context.DrawText(font_, FormatLength(), x2_, y2_ + 5, BitmapAnchor_TopCenter);
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68 }
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69 }
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72 double LineMeasureTracker::GetLength() const // In millimeters
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73 {
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74 Vector a = slice_.MapSliceToWorldCoordinates(x1_, y1_);
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75 Vector b = slice_.MapSliceToWorldCoordinates(x2_, y2_);
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76 return boost::numeric::ublas::norm_2(b - a);
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77 }
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80 std::string LineMeasureTracker::FormatLength() const
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81 {
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82 char buf[64];
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83 sprintf(buf, "%0.01f cm", GetLength() / 10.0);
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84 return buf;
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85 }
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86
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87 void LineMeasureTracker::MouseMove(int displayX,
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88 int displayY,
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89 double x,
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90 double y,
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91 const std::vector<Touch>& displayTouches,
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92 const std::vector<Touch>& sceneTouches)
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93 {
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94 x2_ = x;
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95 y2_ = y;
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96
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97 if (statusBar_ != NULL)
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98 {
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99 statusBar_->SetMessage("Line length: " + FormatLength());
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100 }
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101 }
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102 }