vladislavbelov
57dde8d082
Differential Revision: https://code.wildfiregames.com/D4029 This was SVN commit r25591.
197 lines
4.7 KiB
C++
197 lines
4.7 KiB
C++
/* Copyright (C) 2021 Wildfire Games.
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* This file is part of 0 A.D.
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*
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* 0 A.D. is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 2 of the License, or
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* (at your option) any later version.
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*
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* 0 A.D. is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "precompiled.h"
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#include "CGUIScrollBarVertical.h"
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#include "gui/CGUI.h"
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#include "ps/CLogger.h"
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CGUIScrollBarVertical::CGUIScrollBarVertical(CGUI& pGUI)
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: IGUIScrollBar(pGUI)
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{
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}
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CGUIScrollBarVertical::~CGUIScrollBarVertical()
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{
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}
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void CGUIScrollBarVertical::SetPosFromMousePos(const CVector2D& mouse)
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{
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if (!GetStyle())
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return;
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/**
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* Calculate the position for the top of the item being scrolled
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*/
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float emptyBackground = m_Length - m_BarSize;
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if (GetStyle()->m_UseEdgeButtons)
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emptyBackground -= GetStyle()->m_Width * 2;
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m_Pos = m_PosWhenPressed + GetMaxPos() * (mouse.Y - m_BarPressedAtPos.Y) / emptyBackground;
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}
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void CGUIScrollBarVertical::Draw(CCanvas2D& canvas)
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{
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if (!GetStyle())
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{
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LOGWARNING("Attempt to draw scrollbar without a style.");
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return;
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}
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if (IsVisible())
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{
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CRect outline = GetOuterRect();
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m_pGUI.DrawSprite(
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GetStyle()->m_SpriteBackVertical,
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canvas,
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CRect(
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outline.left,
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outline.top + (GetStyle()->m_UseEdgeButtons ? GetStyle()->m_Width : 0),
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outline.right,
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outline.bottom - (GetStyle()->m_UseEdgeButtons ? GetStyle()->m_Width : 0)
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)
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);
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if (GetStyle()->m_UseEdgeButtons)
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{
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const CGUISpriteInstance* button_top;
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const CGUISpriteInstance* button_bottom;
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if (m_ButtonMinusHovered)
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{
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if (m_ButtonMinusPressed)
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button_top = &(GetStyle()->m_SpriteButtonTopPressed ? GetStyle()->m_SpriteButtonTopPressed : GetStyle()->m_SpriteButtonTop);
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else
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button_top = &(GetStyle()->m_SpriteButtonTopOver ? GetStyle()->m_SpriteButtonTopOver : GetStyle()->m_SpriteButtonTop);
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}
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else
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button_top = &GetStyle()->m_SpriteButtonTop;
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if (m_ButtonPlusHovered)
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{
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if (m_ButtonPlusPressed)
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button_bottom = &(GetStyle()->m_SpriteButtonBottomPressed ? GetStyle()->m_SpriteButtonBottomPressed : GetStyle()->m_SpriteButtonBottom);
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else
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button_bottom = &(GetStyle()->m_SpriteButtonBottomOver ? GetStyle()->m_SpriteButtonBottomOver : GetStyle()->m_SpriteButtonBottom);
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}
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else
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button_bottom = &GetStyle()->m_SpriteButtonBottom;
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m_pGUI.DrawSprite(
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*button_top,
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canvas,
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CRect(
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outline.left,
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outline.top,
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outline.right,
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outline.top+GetStyle()->m_Width
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)
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);
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m_pGUI.DrawSprite(
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*button_bottom,
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canvas,
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CRect(
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outline.left,
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outline.bottom-GetStyle()->m_Width,
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outline.right,
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outline.bottom
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)
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);
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}
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m_pGUI.DrawSprite(
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GetStyle()->m_SpriteBarVertical,
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canvas,
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GetBarRect()
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);
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}
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}
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void CGUIScrollBarVertical::HandleMessage(SGUIMessage& Message)
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{
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IGUIScrollBar::HandleMessage(Message);
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}
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CRect CGUIScrollBarVertical::GetBarRect() const
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{
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CRect ret;
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if (!GetStyle())
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return ret;
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// Get from where the scroll area begins to where it ends
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float from = m_Y;
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float to = m_Y + m_Length - m_BarSize;
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if (GetStyle()->m_UseEdgeButtons)
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{
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from += GetStyle()->m_Width;
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to -= GetStyle()->m_Width;
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}
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ret.top = from + (to - from) * m_Pos / GetMaxPos();
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ret.bottom = ret.top + m_BarSize;
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ret.right = m_X + (m_RightAligned ? 0 : GetStyle()->m_Width);
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ret.left = ret.right - GetStyle()->m_Width;
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return ret;
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}
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CRect CGUIScrollBarVertical::GetOuterRect() const
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{
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CRect ret;
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if (!GetStyle())
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return ret;
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ret.top = m_Y;
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ret.bottom = m_Y+m_Length;
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ret.right = m_X + (m_RightAligned ? 0 : GetStyle()->m_Width);
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ret.left = ret.right - GetStyle()->m_Width;
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return ret;
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}
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bool CGUIScrollBarVertical::HoveringButtonMinus(const CVector2D& mouse)
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{
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if (!GetStyle())
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return false;
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float StartX = m_RightAligned ? m_X-GetStyle()->m_Width : m_X;
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return mouse.X >= StartX &&
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mouse.X <= StartX + GetStyle()->m_Width &&
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mouse.Y >= m_Y &&
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mouse.Y <= m_Y + GetStyle()->m_Width;
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}
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bool CGUIScrollBarVertical::HoveringButtonPlus(const CVector2D& mouse)
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{
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if (!GetStyle())
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return false;
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float StartX = m_RightAligned ? m_X-GetStyle()->m_Width : m_X;
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return mouse.X > StartX &&
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mouse.X < StartX + GetStyle()->m_Width &&
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mouse.Y > m_Y + m_Length - GetStyle()->m_Width &&
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mouse.Y < m_Y + m_Length;
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}
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