Mercurial > hg > orthanc-stone
view Framework/Layers/LineMeasureTracker.cpp @ 463:1155d0b4f557 am-touch-events
debug build by default to have access to the C++ call stack when assertion fails
author | Alain Mazy <alain@mazy.be> |
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date | Thu, 07 Feb 2019 09:26:57 +0100 |
parents | 3b4df9925db6 |
children | 4f2416d519b4 |
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/** * Stone of Orthanc * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics * Department, University Hospital of Liege, Belgium * Copyright (C) 2017-2019 Osimis S.A., Belgium * * This program is free software: you can redistribute it and/or * modify it under the terms of the GNU Affero General Public License * as published by the Free Software Foundation, either version 3 of * the License, or (at your option) any later version. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Affero General Public License for more details. * * You should have received a copy of the GNU Affero General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. **/ #include "LineMeasureTracker.h" #include <stdio.h> namespace OrthancStone { LineMeasureTracker::LineMeasureTracker(IStatusBar* statusBar, const CoordinateSystem3D& slice, double x, double y, uint8_t red, uint8_t green, uint8_t blue, const Orthanc::Font& font) : statusBar_(statusBar), slice_(slice), x1_(x), y1_(y), x2_(x), y2_(y), font_(font) { color_[0] = red; color_[1] = green; color_[2] = blue; } void LineMeasureTracker::Render(CairoContext& context, double zoom) { context.SetSourceColor(color_[0], color_[1], color_[2]); cairo_t* cr = context.GetObject(); cairo_set_line_width(cr, 2.0 / zoom); cairo_move_to(cr, x1_, y1_); cairo_line_to(cr, x2_, y2_); cairo_stroke(cr); if (y2_ - y1_ < 0) { context.DrawText(font_, FormatLength(), x2_, y2_ - 5, BitmapAnchor_BottomCenter); } else { context.DrawText(font_, FormatLength(), x2_, y2_ + 5, BitmapAnchor_TopCenter); } } double LineMeasureTracker::GetLength() const // In millimeters { Vector a = slice_.MapSliceToWorldCoordinates(x1_, y1_); Vector b = slice_.MapSliceToWorldCoordinates(x2_, y2_); return boost::numeric::ublas::norm_2(b - a); } std::string LineMeasureTracker::FormatLength() const { char buf[64]; sprintf(buf, "%0.01f cm", GetLength() / 10.0); return buf; } void LineMeasureTracker::MouseMove(int displayX, int displayY, double x, double y, const std::vector<Touch>& displayTouches, const std::vector<Touch>& sceneTouches) { x2_ = x; y2_ = y; if (statusBar_ != NULL) { statusBar_->SetMessage("Line length: " + FormatLength()); } } }