src/Dialogs/WidgetDialog.hpp

   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 #ifndef XCSOAR_WIDGET_DIALOG_HPP
  25 #define XCSOAR_WIDGET_DIALOG_HPP
  26
  27 #include "Screen/Point.hpp"
  28 #include "Form/Form.hpp"
  29 #include "Form/ButtonPanel.hpp"
  30 #include "Widget/ManagedWidget.hpp"
  31
  32 #include <tchar.h>
  33
  34 class Widget;
  35
  36 class WidgetDialog : public WndForm {
  37   ButtonPanel buttons;
  38
  39   ManagedWidget widget;
  40
  41   bool auto_size;
  42
  43   bool changed;
  44
  45 public:
  46   WidgetDialog(const DialogLook &look);
  47
  48   void Create(SingleWindow &parent, const TCHAR *caption,
  49               const PixelRect &rc, Widget *widget);
  50
  51   /**
  52    * Create a full-screen dialog.
  53    */
  54   void CreateFull(SingleWindow &parent, const TCHAR *caption, Widget *widget);
  55
  56   /**
  57    * Create a dialog with an automatic size (by
  58    * Widget::GetMinimumSize() and Widget::GetMaximumSize()).
  59    */
  60   void CreateAuto(SingleWindow &parent, const TCHAR *caption, Widget *widget);
  61
  62   /**
  63    * Create a dialog, but do not associate it with a #Widget yet.
  64    * Call FinishPreliminary() to resume building the dialog.
  65    */
  66   void CreatePreliminary(SingleWindow &parent, const TCHAR *caption);
  67
  68   void FinishPreliminary(Widget *widget);
  69
  70   bool GetChanged() const {
  71     return changed;
  72   }
  73
  74   Widget &GetWidget() {
  75     assert(widget.IsDefined());
  76     return *widget.Get();
  77   }
  78
  79   Widget *StealWidget() {
  80     assert(widget.IsDefined());
  81     widget.Unprepare();
  82     return widget.Steal();
  83   }
  84
  85   WndButton *AddButton(const TCHAR *caption,
  86                        ActionListener &listener, int id) {
  87     return buttons.Add(caption, listener, id);
  88   }
  89
  90   WndButton *AddButton(const TCHAR *caption, int modal_result) {
  91     return AddButton(caption, *this, modal_result);
  92   }
  93
  94   int ShowModal();
  95
  96   /* virtual methods from class ActionListener */
  97   virtual void OnAction(int id) override;
  98
  99 private:
 100   void AutoSize();
 101
 102 protected:
 103   /* virtual methods from class Window */
 104   virtual void OnDestroy() override;
 105   virtual void OnResize(PixelSize new_size) override;
 106 };
 107
 108 /**
 109  * Show a #Widget in a dialog, with OK and Cancel buttons.
 110  *
 111  * @param widget the #Widget to be displayed; it is not "prepared" and
 112  * will be "unprepared" (but "initialised") before returning; the
 113  * caller is responsible for destructing it
 114  * @return true if changed data was saved
 115  */
 116 bool
 117 DefaultWidgetDialog(SingleWindow &parent, const DialogLook &look,
 118                     const TCHAR *caption, const PixelRect &rc, Widget &widget);
 119
 120 bool
 121 DefaultWidgetDialog(SingleWindow &parent, const DialogLook &look,
 122                     const TCHAR *caption, Widget &widget);
 123
 124 #endif