annotate Framework/Layers/CircleMeasureTracker.cpp @ 480:2f6ecb5037ea am-touch-events

added mouse tracker for Layer Mask. Everything seems ok
author am@osimis.io
date Thu, 14 Feb 2019 10:18:02 +0100
parents 3b4df9925db6
children 4f2416d519b4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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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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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 "CircleMeasureTracker.h"
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23
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24 #include <stdio.h>
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25 #include <boost/math/constants/constants.hpp>
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27 namespace OrthancStone
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28 {
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29 CircleMeasureTracker::CircleMeasureTracker(IStatusBar* statusBar,
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30 const CoordinateSystem3D& slice,
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31 double x,
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32 double y,
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33 uint8_t red,
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34 uint8_t green,
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35 uint8_t blue,
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36 const Orthanc::Font& font) :
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37 statusBar_(statusBar),
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38 slice_(slice),
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39 x1_(x),
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40 y1_(y),
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41 x2_(x),
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42 y2_(y),
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43 font_(font)
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44 {
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45 color_[0] = red;
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46 color_[1] = green;
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47 color_[2] = blue;
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48 }
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51 void CircleMeasureTracker::Render(CairoContext& context,
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52 double zoom)
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53 {
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54 double x = (x1_ + x2_) / 2.0;
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55 double y = (y1_ + y2_) / 2.0;
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57 Vector tmp;
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58 LinearAlgebra::AssignVector(tmp, x2_ - x1_, y2_ - y1_);
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59 double r = boost::numeric::ublas::norm_2(tmp) / 2.0;
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61 context.SetSourceColor(color_[0], color_[1], color_[2]);
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63 cairo_t* cr = context.GetObject();
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64 cairo_save(cr);
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65 cairo_set_line_width(cr, 2.0 / zoom);
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66 cairo_translate(cr, x, y);
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67 cairo_arc(cr, 0, 0, r, 0, 2.0 * boost::math::constants::pi<double>());
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68 cairo_stroke_preserve(cr);
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69 cairo_stroke(cr);
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70 cairo_restore(cr);
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71
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72 context.DrawText(font_, FormatRadius(), x, y, BitmapAnchor_Center);
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73 }
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76 double CircleMeasureTracker::GetRadius() const // In millimeters
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77 {
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78 Vector a = slice_.MapSliceToWorldCoordinates(x1_, y1_);
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79 Vector b = slice_.MapSliceToWorldCoordinates(x2_, y2_);
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80 return boost::numeric::ublas::norm_2(b - a) / 2.0;
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81 }
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84 std::string CircleMeasureTracker::FormatRadius() const
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85 {
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86 char buf[64];
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87 sprintf(buf, "%0.01f cm", GetRadius() / 10.0);
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88 return buf;
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89 }
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90
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91 void CircleMeasureTracker::MouseMove(int displayX,
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92 int displayY,
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93 double x,
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94 double y,
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95 const std::vector<Touch>& displayTouches,
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96 const std::vector<Touch>& sceneTouches)
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97 {
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98 x2_ = x;
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99 y2_ = y;
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100
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101 if (statusBar_ != NULL)
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102 {
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103 statusBar_->SetMessage("Circle radius: " + FormatRadius());
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104 }
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105 }
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106 }