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skplot2d.cpp
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Thu, Dec 12, 18:24

skplot2d.cpp
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#include "skplot2d.h"
using namespace std;
using namespace symkit;
color_s SKPlot2D::colorlist[6] =
{
color_s(1), // red
color_s(0.75, 0.75), // yellow
color_s(0, 1), // blue
color_s(0, 0.75, 0.75), // cyan
color_s(0, 0, 1), // blue
color_s(0.75, 0, 0.75) // violet
}; // size 6
color_s SKPlot2D::generateColor()
{
return colorlist[functions.size() % 6];
}
SKPlot2D::SKPlot2D(float lineWidth, QWidget * parent)
: SKPlot(lineWidth, parent)
{
}
#include <QGLShaderProgram>
void SKPlot2D::paintAxys(QGLShaderProgram *shaderProgram)
{
glBegin(GL_LINES);
const SKAxys* axys[] = {&getAxysX(), &getAxysY()};
//cout << "Symplot: drawing axys" << endl;
shaderProgram->setAttributeValue(AttributeID::color, COLOR_ARGS(axys[0]->color));
// axys X
shaderProgram->setAttributeValue(AttributeID::vertex, axys[0]->offset, 0.0f, 0.0f);
shaderProgram->setAttributeValue(AttributeID::vertex, axys[0]->offset + axys[0]->range, 0.0f, 0.0f);
shaderProgram->setAttributeValue(AttributeID::color, COLOR_ARGS(axys[1]->color));
// axys Y
shaderProgram->setAttributeValue(AttributeID::vertex, 0.0f, axys[1]->offset, 0.0f);
shaderProgram->setAttributeValue(AttributeID::vertex, 0.0f, axys[1]->offset + axys[1]->range, 0.0f);
glEnd();
}
void SKPlot2D::paintData(QGLShaderProgram * shaderProgram)
{
for (const auto& function : functions)
{
shaderProgram->setAttributeValue(AttributeID::color, COLOR_ARGS(function.color));
glBegin(GL_LINE_STRIP);
for (const auto& point : function.stream)
shaderProgram->setAttributeValue(AttributeID::vertex, point.args, point.img, 0);
glEnd();
}
}
size_t SKPlot2D::registerNewStream()
{
ColoredFunction func;
func.color = generateColor();
functions.push_back(func);
return functions.size() - 1;
}
PlotStream<double>& SKPlot2D::operator[](size_t n)
{
return getFunctionStream(n);
}
PlotStream<double>& SKPlot2D::getFunctionStream(size_t n)
{
return functions[n].stream;
}
const color_s& SKPlot2D::getFunctionColor(size_t n) const
{
return functions[n].color;
}
PlotStream<double>& SKPlot2D::backStream()
{
return functions.back().stream;
}
#include <QKeyEvent>
void SKPlot2D::keyPressEvent(QKeyEvent *ev)
{
switch(ev->key())
{
case Qt::Key_W:
getAxysX().zoom(1.25f);
getAxysY().zoom(1.25f);
break;
case Qt::Key_S:
getAxysX().zoom(0.8f);
getAxysY().zoom(0.8f);
break;
case Qt::Key_L:
getAxysX().translate(0.1);
break;
case Qt::Key_H:
getAxysX().translate(-0.1);
break;
case Qt::Key_K:
getAxysY().translate(0.1);
break;
case Qt::Key_J:
getAxysY().translate(-0.1);
break;
default:
return; // do not update anything
}
/* Update axys range */
scheduleAxysUpdate();
}
void SKPlot2D::clearAll()
{
for (auto& f : functions)
f.stream.clear();
}

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