source/gui/CGUIScrollBarVertical.h

   1 /* Copyright (C) 2021 Wildfire Games.
   2  * This file is part of 0 A.D.
   3  *
   4  * 0 A.D. is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation, either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * 0 A.D. is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License
  15  * along with 0 A.D.  If not, see <http://www.gnu.org/licenses/>.
  16  */
  17
  18 /*
  19         A GUI Scrollbar, this class doesn't present all functionality
  20         to the scrollbar, it just controls the drawing and a wrapper
  21         for interaction with it.
  22 */
  23
  24 #ifndef INCLUDED_CGUISCROLLBARVERTICAL
  25 #define INCLUDED_CGUISCROLLBARVERTICAL
  26
  27 #include "IGUIScrollBar.h"
  28
  29 /**
  30  * Vertical implementation of IGUIScrollBar
  31  *
  32  * @see IGUIScrollBar
  33  */
  34 class CGUIScrollBarVertical : public IGUIScrollBar
  35 {
  36 public:
  37         CGUIScrollBarVertical(CGUI& pGUI);
  38         virtual ~CGUIScrollBarVertical();
  39
  40 public:
  41         /**
  42          * Draw the scroll-bar
  43          */
  44         virtual void Draw(CCanvas2D& canvas);
  45
  46         /**
  47      * If an object that contains a scrollbar has got messages, send
  48          * them to the scroll-bar and it will see if the message regarded
  49          * itself.
  50          *
  51          * @see IGUIObject#HandleMessage()
  52          */
  53         virtual void HandleMessage(SGUIMessage& Message);
  54
  55         /**
  56          * Set m_Pos with g_mouse_x/y input, i.e. when dragging.
  57          */
  58         virtual void SetPosFromMousePos(const CVector2D& mouse);
  59
  60         /**
  61          * @see IGUIScrollBar#HoveringButtonMinus
  62          */
  63         virtual bool HoveringButtonMinus(const CVector2D& mouse);
  64
  65         /**
  66          * @see IGUIScrollBar#HoveringButtonPlus
  67          */
  68         virtual bool HoveringButtonPlus(const CVector2D& mouse);
  69
  70         /**
  71          * Set Right Aligned
  72          * @param align Alignment
  73          */
  74         void SetRightAligned(const bool& align) { m_RightAligned = align; }
  75
  76         /**
  77          * Get the rectangle of the actual BAR.
  78          * @return Rectangle, CRect
  79          */
  80         virtual CRect GetBarRect() const;
  81
  82         /**
  83          * Get the rectangle of the outline of the scrollbar, every component of the
  84          * scroll-bar should be inside this area.
  85          * @return Rectangle, CRect
  86          */
  87         virtual CRect GetOuterRect() const;
  88
  89 protected:
  90         /**
  91          * Should the scroll bar proceed to the left or to the right of the m_X value.
  92          * Notice, this has nothing to do with where the owner places it.
  93          */
  94         bool m_RightAligned;
  95 };
  96
  97 #endif // INCLUDED_CGUISCROLLBARVERTICAL