ResInsight/Fwk/VizFwk/LibRender/cvfOverlayColorLegend.h
sigurdp fbfbdfca84 Integrate Fwk updates from ResInsight/Perforce
Integrated Fwk updates in Resinsight branch up to changelist 173.
Summary of changes:
* Rewrite of cvf::OverlayItem to allow fixed user controlled positioning
of the items.
* Removed pure virtual functions OverlayItem::maximumSize() and
OverlayItem::minimumSize().
* Use caf::AboutDialog instead of modified cvfqt::BasicAboutDialog.
* Removed lapack from link line due to fail on Ubuntu 12.04 when lapack
isn't installed.
* Fix in OpenGLContext::saveOpenGLState() to avoid application
corruption when running on RedHat with VMWare.
* Removed unused font manager.
* Console assert handler only calls __debugbreak() if debugger is
present. Otherwise, calls abort(). Done after trouble running gtest
death tests.
* Made component access functions in Color3f, Color3ub, Color4f,
Color4ub inline.
* Added conversion functions between TextureImage and QImage to
cvfqt::Utils class.
* Optimized TextureImage::setPixel() - relies on new inlined
component-wise access functions for Color4ub.
* Added TextureImage::clear() and non-const version of
TextureImage::ptr().
2013-10-31 14:57:52 +01:00

133 lines
4.9 KiB
C++

//##################################################################################################
//
// Custom Visualization Core library
// Copyright (C) 2011-2013 Ceetron AS
//
// This library may be used under the terms of either the GNU General Public License or
// the GNU Lesser General Public License as follows:
//
// GNU General Public License Usage
// This library is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.
//
// See the GNU General Public License at <<http://www.gnu.org/licenses/gpl.html>>
// for more details.
//
// GNU Lesser General Public License Usage
// This library is free software; you can redistribute it and/or modify
// it under the terms of the GNU Lesser General Public License as published by
// the Free Software Foundation; either version 2.1 of the License, or
// (at your option) any later version.
//
// This library is distributed in the hope that it will be useful, but WITHOUT ANY
// WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.
//
// See the GNU Lesser General Public License at <<http://www.gnu.org/licenses/lgpl-2.1.html>>
// for more details.
//
//##################################################################################################
#pragma once
#include "cvfOverlayItem.h"
#include "cvfArray.h"
#include "cvfCamera.h"
#include "cvfString.h"
#include "cvfRect.h"
namespace cvf {
class Font;
class ShaderProgram;
class MatrixState;
class TextDrawer;
struct OverlayColorLegendLayoutInfo;
//==================================================================================================
//
// Overlay color legend
//
//==================================================================================================
class OverlayColorLegend : public OverlayItem
{
public:
OverlayColorLegend(Font* font);
virtual ~OverlayColorLegend();
virtual Vec2ui sizeHint();
virtual void render(OpenGLContext* oglContext, const Vec2i& position, const Vec2ui& size);
virtual void renderSoftware(OpenGLContext* oglContext, const Vec2i& position, const Vec2ui& size);
virtual bool pick(int x, int y, const Vec2i& position, const Vec2ui& size);
void configureLevels(const Color3ubArray& levelColors, const DoubleArray& tickValues);
void setSizeHint(const Vec2ui& size);
void setWidthToFitText();
void setColor(const Color3f& color);
const Color3f& color() const;
void setLineColor(const Color3f& lineColor);
const Color3f& lineColor() const;
void setLineWidth(int lineWidth);
int lineWidth() const;
void setTitle(const String& title);
String title() const;
protected:
void render(OpenGLContext* oglContext, const Vec2i& position, const Vec2ui& size, bool software);
virtual void renderLegend(OpenGLContext* oglContext, OverlayColorLegendLayoutInfo* layout, const MatrixState& matrixState);
virtual void renderLegendImmediateMode(OpenGLContext* oglContext, OverlayColorLegendLayoutInfo* layout);
virtual void setupTextDrawer(TextDrawer* textDrawer, OverlayColorLegendLayoutInfo* layout);
void layoutInfo(OverlayColorLegendLayoutInfo* layout);
protected:
Color3ubArray m_levelColors; // Colors for n levels
DoubleArray m_tickValues; // Ticks between each level + top and bottom of legend (n+1 entries)
std::vector<bool> m_visibleTickLabels; // Skip tick labels ending up on top of previous visible label
Vec2ui m_sizeHint; // Pixel size of the color legend area
Color3f m_color;
Color3f m_lineColor;
int m_lineWidth;
std::vector<String> m_titleStrings;
ref<Font> m_font;
const cvf::uint m_margin;
};
//==================================================================================================
//
// Internal helper for storing layout info to allow for custom rendered legends
//
//==================================================================================================
struct OverlayColorLegendLayoutInfo
{
float charHeight;
float lineSpacing;
Vec2f margins;
float tickX;
float x0;
float x1;
Rectf legendRect;
Vec2i position;
Vec2ui size;
ref<DoubleArray> tickPixelPos;
};
}