src/Dialogs/Task/dlgAlternatesList.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 "Dialogs/Dialogs.h"
  25 #include "Dialogs/WidgetDialog.hpp"
  26 #include "Dialogs/Waypoint/WaypointDialogs.hpp"
  27 #include "Widget/ListWidget.hpp"
  28 #include "Screen/Layout.hpp"
  29 #include "Screen/Font.hpp"
  30 #include "Look/DialogLook.hpp"
  31 #include "Task/ProtectedTaskManager.hpp"
  32 #include "Components.hpp"
  33 #include "Interface.hpp"
  34 #include "UIGlobals.hpp"
  35 #include "Look/MapLook.hpp"
  36 #include "Renderer/WaypointListRenderer.hpp"
  37 #include "Language/Language.hpp"
  38
  39 class AlternatesListWidget final
  40   : public ListWidget, private ActionListener {
  41   enum Buttons {
  42     SETTINGS,
  43     GOTO,
  44   };
  45
  46   const DialogLook &dialog_look;
  47
  48   WndButton *details_button, *cancel_button, *goto_button;
  49
  50 public:
  51   AbortTask::AlternateVector alternates;
  52
  53 public:
  54   void CreateButtons(WidgetDialog &dialog);
  55
  56 public:
  57   AlternatesListWidget(const DialogLook &_dialog_look)
  58     :dialog_look(_dialog_look) {}
  59
  60   unsigned GetCursorIndex() const {
  61     return GetList().GetCursorIndex();
  62   }
  63
  64   void Update() {
  65     ProtectedTaskManager::Lease lease(*protected_task_manager);
  66     alternates = lease->GetAlternates();
  67   }
  68
  69 public:
  70   /* virtual methods from class Widget */
  71   virtual void Prepare(ContainerWindow &parent, const PixelRect &rc) override;
  72   virtual void Unprepare() override {
  73     DeleteWindow();
  74   }
  75
  76   /* virtual methods from class List::Handler */
  77   virtual void OnPaintItem(Canvas &canvas, const PixelRect rc,
  78                            unsigned index) override {
  79     assert(index < alternates.size());
  80
  81     const ComputerSettings &settings = CommonInterface::GetComputerSettings();
  82     const Waypoint &waypoint = alternates[index].waypoint;
  83     const GlideResult& solution = alternates[index].solution;
  84
  85     WaypointListRenderer::Draw(canvas, rc, waypoint, solution.vector.distance,
  86                                solution.SelectAltitudeDifference(settings.task.glide),
  87                                UIGlobals::GetDialogLook(),
  88                                UIGlobals::GetMapLook().waypoint,
  89                                CommonInterface::GetMapSettings().waypoint);
  90   }
  91
  92   virtual void OnActivateItem(unsigned index) override;
  93
  94   /* virtual methods from class ActionListener */
  95   virtual void OnAction(int id) override;
  96 };
  97
  98 void
  99 AlternatesListWidget::CreateButtons(WidgetDialog &dialog)
 100 {
 101   goto_button = dialog.AddButton(_("Goto"), *this, GOTO);
 102   details_button = dialog.AddButton(_("Details"), mrOK);
 103   cancel_button = dialog.AddButton(_("Close"), mrCancel);
 104 }
 105
 106 void
 107 AlternatesListWidget::Prepare(ContainerWindow &parent, const PixelRect &rc)
 108 {
 109   UPixelScalar item_height = dialog_look.list.font_bold->GetHeight()
 110     + Layout::Scale(6) + dialog_look.small_font->GetHeight();
 111   assert(item_height > 0);
 112
 113   CreateList(parent, dialog_look, rc, item_height);
 114
 115   GetList().SetLength(alternates.size());
 116 }
 117
 118 void
 119 AlternatesListWidget::OnActivateItem(unsigned index)
 120 {
 121   details_button->OnClicked();
 122 }
 123
 124 void
 125 AlternatesListWidget::OnAction(int id)
 126 {
 127   switch (id) {
 128   case GOTO:
 129     unsigned index = GetCursorIndex();
 130
 131     auto const &item = alternates[index];
 132     auto const &waypoint = item.waypoint;
 133
 134     protected_task_manager->DoGoto(waypoint);
 135     cancel_button->OnClicked();
 136
 137     break;
 138   }
 139 }
 140
 141 void
 142 dlgAlternatesListShowModal(SingleWindow &parent)
 143 {
 144   if (protected_task_manager == NULL)
 145     return;
 146
 147   const DialogLook &dialog_look = UIGlobals::GetDialogLook();
 148
 149   AlternatesListWidget widget(dialog_look);
 150   widget.Update();
 151
 152   WidgetDialog dialog(dialog_look);
 153   dialog.CreateFull(parent, _("Alternates"), &widget);
 154   widget.CreateButtons(dialog);
 155
 156   int i = dialog.ShowModal() == mrOK
 157     ? (int)widget.GetCursorIndex()
 158     : -1;
 159   dialog.StealWidget();
 160
 161   if (i < 0 || (unsigned)i >= widget.alternates.size())
 162     return;
 163
 164   dlgWaypointDetailsShowModal(parent, widget.alternates[i].waypoint);
 165 }