cppconsui/ListBox.h

   1 // Copyright (C) 2007 Mark Pustjens <pustjens@dds.nl>
   2 // Copyright (C) 2010-2015 Petr Pavlu <setup@dagobah.cz>
   3 //
   4 // This file is part of CenterIM.
   5 //
   6 // CenterIM is free software; you can redistribute it and/or modify
   7 // it under the terms of the GNU General Public License as published by
   8 // the Free Software Foundation; either version 2 of the License, or
   9 // (at your option) any later version.
  10 //
  11 // CenterIM is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15 //
  16 // You should have received a copy of the GNU General Public License
  17 // along with CenterIM.  If not, see <http://www.gnu.org/licenses/>.
  18
  19 /// @file
  20 /// ListBox class.
  21 ///
  22 /// @ingroup cppconsui
  23
  24 #ifndef LISTBOX_H
  25 #define LISTBOX_H
  26
  27 #include "AbstractListBox.h"
  28 #include "HorizontalLine.h"
  29
  30 namespace CppConsUI {
  31
  32 /// Implementation of AbstractListBox class where widgets are placed vertically.
  33 class ListBox : public AbstractListBox {
  34 public:
  35   ListBox(int w, int h);
  36   virtual ~ListBox() override {}
  37
  38   // AbstractListBox
  39   virtual HorizontalLine *insertSeparator(std::size_t pos) override;
  40   virtual HorizontalLine *appendSeparator() override;
  41   virtual void insertWidget(std::size_t pos, Widget &widget) override;
  42   virtual void appendWidget(Widget &widget) override;
  43
  44   virtual int getChildrenHeight() const { return children_height_; };
  45
  46   sigc::signal<void, ListBox &, int> signal_children_height_change;
  47
  48 protected:
  49   /// Total height of all visible children.
  50   int children_height_;
  51
  52   /// Number of visible children that has their height set to AUTOSIZE.
  53   int autosize_children_count_;
  54
  55   // Widget
  56   virtual void updateArea() override;
  57
  58   // Container
  59   virtual void onChildMoveResize(
  60     Widget &activator, const Rect &oldsize, const Rect &newsize) override;
  61   virtual void onChildWishSizeChange(
  62     Widget &activator, const Size &oldsize, const Size &newsize) override;
  63   virtual void onChildVisible(Widget &activator, bool visible) override;
  64   virtual void moveWidget(
  65     Widget &widget, Widget &position, bool after) override;
  66
  67   virtual void updateChildren(
  68     int children_height_change, int autosize_children_count_change);
  69
  70 private:
  71   CONSUI_DISABLE_COPY(ListBox);
  72 };
  73
  74 } // namespace CppConsUI
  75
  76 #endif // LISTBOX_H
  77
  78 // vim: set tabstop=2 shiftwidth=2 textwidth=80 expandtab: