forked from mirrors/0ad
elexis
a33fd55e81
Improves performance for Draw calls by 3-5% according to a shady benchmark. Improves memory layout, since the values are not on the heap anymore but in the using class. Reduces complexity of the implementation and increases type safety. Allows specifying default values at setting value construction time, refs D2242. Inspired by Vladislav introducing members that cached GetSetting values in c016a74309/D325, refs #4039, ee38f0db37/D763, refs 4225, a1c4c23ce4/D474, D406, which were formerly proposed to be removed in D2241. Differential Revision: https://code.wildfiregames.com/D2313 Tested on: clang 8.0.1, gcc 9.1.0, Jenkins vs2015 Comments By: Vladislav This was SVN commit r23005.
107 lines
2.6 KiB
C++
107 lines
2.6 KiB
C++
/* Copyright (C) 2019 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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#ifndef INCLUDED_CCHART
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#define INCLUDED_CCHART
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#include "graphics/ShaderProgramPtr.h"
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#include "gui/CGUIColor.h"
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#include "gui/CGUIList.h"
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#include "gui/CGUISeries.h"
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#include "gui/IGUITextOwner.h"
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#include "maths/Vector2D.h"
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#include <vector>
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struct CChartData
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{
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// Avoid copying the container.
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NONCOPYABLE(CChartData);
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MOVABLE(CChartData);
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CChartData() = default;
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CGUIColor m_Color;
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std::vector<CVector2D> m_Points;
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};
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/**
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* Chart for a data visualization as lines or points
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*/
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class CChart : public IGUITextOwner
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{
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GUI_OBJECT(CChart)
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public:
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CChart(CGUI& pGUI);
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virtual ~CChart();
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protected:
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/**
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* @see IGUIObject#HandleMessage()
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*/
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virtual void HandleMessage(SGUIMessage& Message);
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/**
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* Draws the Chart
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*/
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virtual void Draw();
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virtual CRect GetChartRect() const;
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void UpdateSeries();
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void SetupText();
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std::vector<CChartData> m_Series;
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CVector2D m_LeftBottom, m_RightTop;
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std::vector<CPos> m_TextPositions;
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bool m_EqualX, m_EqualY;
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// Settings
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CGUIColor m_AxisColor;
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float m_AxisWidth;
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float m_BufferZone;
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CStrW m_Font;
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CStrW m_FormatX;
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CStrW m_FormatY;
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CGUIList m_SeriesColor;
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CGUISeries m_SeriesSetting;
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EAlign m_TextAlign;
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private:
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/**
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* Helper functions
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*/
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void DrawLine(const CShaderProgramPtr& shader, const CGUIColor& color, const std::vector<float>& vertices) const;
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// Draws the triangle sequence so that the each next triangle has a common edge with the previous one.
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// If we need to draw n triangles, we need only n + 2 points.
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void DrawTriangleStrip(const CShaderProgramPtr& shader, const CGUIColor& color, const std::vector<float>& vertices) const;
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// Represents axes as triangles and draws them with DrawTriangleStrip.
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void DrawAxes(const CShaderProgramPtr& shader) const;
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CSize AddFormattedValue(const CStrW& format, const float value, const CStrW& font, const float buffer_zone);
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void UpdateBounds();
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};
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#endif // INCLUDED_CCHART
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