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120 lines
4.0 KiB
C++
120 lines
4.0 KiB
C++
//##################################################################################################
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//
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// Custom Visualization Core library
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// Copyright (C) 2011-2013 Ceetron AS
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//
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// This library may be used under the terms of either the GNU General Public License or
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// the GNU Lesser General Public License as follows:
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//
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// GNU General Public License Usage
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// This library 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 3 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
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// for more details.
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//
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// GNU Lesser General Public License Usage
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation; either version 2.1 of the License, or
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// (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but WITHOUT ANY
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// WARRANTY; without even the implied warranty of MERCHANTABILITY or
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// FITNESS FOR A PARTICULAR PURPOSE.
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//
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// See the GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
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// for more details.
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//
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//##################################################################################################
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#pragma once
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#include "cvfObject.h"
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#include "cvfString.h"
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#include "cvfVector3.h"
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#include "cvfColor3.h"
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namespace cvf {
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class Font;
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class ShaderProgram;
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class MatrixState;
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class Viewport;
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class OpenGLContext;
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//==================================================================================================
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//
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// Draw text in currently set projection
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//
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//==================================================================================================
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class TextDrawer : public Object
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{
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public:
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enum Alignment
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{
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TOP,
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CENTER,
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BASELINE,
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BOTTOM
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};
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public:
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TextDrawer(Font* font);
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virtual ~TextDrawer();
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void addText(const String& text, const Vec2f& pos);
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void addText(const String& text, const Vec3f& pos);
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void removeAllTexts();
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void setVerticalAlignment(Alignment alignment);
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void setTextColor(const Color3f& color);
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void setBackgroundColor(const Color3f& color);
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void setBorderColor(const Color3f& color);
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void setDrawBackground(bool drawBackground);
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void setDrawBorder(bool drawBorder);
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void setUseDepthBuffer(bool useDepthBuffer);
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Color3f textColor() const;
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Color3f backgroundColor() const;
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Color3f borderColor() const;
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bool drawBackground() const;
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bool drawBorder() const;
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bool useDepthBuffer() const;
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void render(OpenGLContext* oglContext, const MatrixState& matrixState);
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void renderSoftware(OpenGLContext* oglContext, const MatrixState& matrixState);
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static bool pickText(const Vec3f& pickCoord2d, const String& text, const Vec3f& pos, Font* font);
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private:
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void doRender2d(OpenGLContext* oglContext, const MatrixState& matrixState, bool softwareRendering);
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private:
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ref<Font> m_font; // Font used to draw text
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std::vector<Vec3f> m_positions; // Coordinate of the lower left corner of where to place each individual text strings
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std::vector<String> m_texts; // Text strings to be drawn
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bool m_drawBackground;
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bool m_drawBorder;
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Color3f m_textColor;
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Color3f m_backgroundColor;
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Color3f m_borderColor;
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bool m_useDepthBuffer;
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short m_verticalAlignment;// Vertical alignment for horizontal text
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};
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} // namespace cvf
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