src/Renderer/TaskProgressRenderer.cpp

   1 /*
   2 Copyright_License {
   3
   4   XCSoar Glide Computer - http://www.xcsoar.org/
   5   Copyright (C) 2000-2013 The XCSoar Project
   6   A detailed list of copyright holders can be found in the file "AUTHORS".
   7
   8   This program is free software; you can redistribute it and/or
   9   modify it under the terms of the GNU General Public License
  10   as published by the Free Software Foundation; either version 2
  11   of the License, or (at your option) any later version.
  12
  13   This program is distributed in the hope that it will be useful,
  14   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16   GNU General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with this program; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 }
  22 */
  23
  24 #include "TaskProgressRenderer.hpp"
  25 #include "Look/TaskLook.hpp"
  26 #include "Engine/Task/Stats/TaskSummary.hpp"
  27 #include "Screen/Canvas.hpp"
  28 #include "Screen/Layout.hpp"
  29 #include "Screen/Icon.hpp"
  30
  31 #include <algorithm>
  32
  33 void
  34 TaskProgressRenderer::Draw(const TaskSummary& summary, Canvas &canvas,
  35                            const PixelRect &rc, bool inverse)
  36 {
  37   const int radius = std::min(rc.right - rc.left, rc.bottom - rc.top) / 2 -
  38                      Layout::Scale(3);
  39   RasterPoint center;
  40   center.x = (rc.left + rc.right) / 2;
  41   center.y = (rc.bottom + rc.top) / 2;
  42
  43   const fixed sweep = fixed_two_pi * fixed(0.9);
  44   Pen pen_f(1, inverse ? COLOR_WHITE : COLOR_BLACK);
  45
  46   if (summary.p_remaining < fixed(0.99)) {
  47     canvas.Select(look.hbGray);
  48     canvas.SelectNullPen();
  49     canvas.DrawSegment(center.x, center.y, radius, Angle::Zero(),
  50                    Angle::Radians(sweep * (fixed(1) -  summary.p_remaining)));
  51   }
  52
  53   canvas.Select(pen_f);
  54   canvas.SelectHollowBrush();
  55   canvas.DrawCircle(center.x, center.y, radius);
  56
  57   unsigned i = 0;
  58   canvas.Select(pen_f);
  59   for (auto it = summary.pts.begin(); it != summary.pts.end(); ++it, ++i) {
  60     Angle a = Angle::Radians(it->p * sweep);
  61     int x = center.x + (int)(radius * a.fastsine());
  62     int y = center.y - (int)(radius * a.fastcosine());
  63     int w;
  64     if (i == summary.active) {
  65       if (it->achieved)
  66         canvas.Select(look.hbGreen);
  67       else
  68         canvas.Select(look.hbOrange);
  69
  70       w = Layout::Scale(3);
  71     } else if (i < summary.active) {
  72       if (it->achieved)
  73         canvas.Select(look.hbGreen);
  74       else
  75         canvas.Select(look.hbNotReachableTerrain);
  76
  77       w = Layout::Scale(2);
  78     } else {
  79       if (it->achieved)
  80         canvas.Select(look.hbGreen);
  81       else
  82         canvas.Select(look.hbLightGray);
  83
  84       w = Layout::Scale(1);
  85     }
  86
  87     canvas.Rectangle(x - w, y - w, x + w, y + w);
  88   }
  89 }