paysages3d/gui_qt/inputcurve.cpp

94 lines
2.5 KiB
C++
Raw Normal View History

#include "inputcurve.h"
#include <QLabel>
#include <QPushButton>
#include <QPainter>
#include "dialogcurve.h"
class CurveSmallPreview:public QWidget
{
public:
CurveSmallPreview(QWidget* parent, Curve* curve, double xmin, double xmax, double ymin, double ymax) : QWidget(parent)
{
_curve = curve;
_xmin = xmin;
_xmax = xmax;
_ymin = ymin;
_ymax = ymax;
}
void paintEvent(QPaintEvent* event)
{
if (!_curve)
{
return;
}
QPainter painter(this);
int width = this->width();
int height = this->height();
double position, value, prev_value, next_value;
painter.fillRect(rect(), QColor(255, 255, 255));
for (int x = 0; x < width; x++)
{
painter.setPen(QColor(0, 0, 0));
position = _xmin + (_xmax - _xmin) * (double)x / (double)(width - 1);
value = (curveGetValue(_curve, position) - _ymin) * (_ymax - _ymin);
prev_value = curveGetValue(_curve, position - 1.0 / (double)(width - 1));
next_value = curveGetValue(_curve, position + 1.0 / (double)(width - 1));
painter.drawLine(x, height - 1 - (int)((value + (prev_value - value) / 2.0) * (double)(height - 1)), x, height - 1 - (int)((value + (next_value - value) / 2.0) * (double)(height - 1)));
painter.drawPoint(x, height - 1 - (int)(value * (double)(height - 1)));
}
}
Curve* _curve;
double _xmin;
double _xmax;
double _ymin;
double _ymax;
};
InputCurve::InputCurve(QWidget* form, QString label, Curve* value, double xmin, double xmax, double ymin, double ymax, QString xlabel, QString ylabel) : BaseInput(form, label)
{
_value = value;
_xmin = xmin;
_xmax = xmax;
_ymin = ymin;
_ymax = ymax;
_xlabel = xlabel;
_ylabel = ylabel;
_preview = new CurveSmallPreview(form, value, xmin, xmax, ymin, ymax);
_preview->setMinimumSize(100, 40);
_control = new QPushButton(tr("Edit"), form);
_control->setMaximumWidth(150);
connect((QPushButton*)_control, SIGNAL(clicked()), this, SLOT(editCurve()));
}
void InputCurve::updatePreview()
{
_preview->update();
BaseInput::updatePreview();
}
void InputCurve::applyValue()
{
BaseInput::applyValue();
}
void InputCurve::revert()
{
BaseInput::revert();
}
void InputCurve::editCurve()
{
if (DialogCurve::getCurve(_control, _value, _xmin, _xmax, _ymin, _ymax, _xlabel, _ylabel))
{
applyValue();
}
}