gl_widget.cpp
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	#include "gl_widget.hh"
	#include "helper.hh"

	#include <QPainter>
	#include <QTimer>
	#include <QMouseEvent>
	#include <QPoint>
	#include <QDebug>

	GLWidget::GLWidget(Helper * helper, QWidget * parent)
	: QOpenGLWidget(parent), helper(helper) {
	elapsed = 0;
	setMinimumSize(1920, 1080);
	setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::MinimumExpanding);
	setAutoFillBackground(false);
	}

	void GLWidget::animate() {
	elapsed = elapsed + 100;
	update();
	}

	void GLWidget::paintEvent(QPaintEvent * event) {
	QPainter painter;
	painter.begin(this);
	painter.setRenderHint(QPainter::Antialiasing);
	helper->paint(&painter, event, elapsed);
	painter.end();
	}



	void GLWidget::mousePressEvent(QMouseEvent * event) {
	if(event->button() == Qt::LeftButton) {
	const QPoint & pos = event->pos();
	const QSize & s = size();
	helper->sendGrid(pos, s);
	}
	}
	void GLWidget::mouseMoveEvent(QMouseEvent *event) {
	if(event->buttons() & Qt::LeftButton) {
	const QPoint & pos = event->pos();
	const QSize & s = size();
	helper->sendGrid(pos, s);
	}
	}

	void GLWidget::mouseReleaseEvent(__attribute__((unused)) QMouseEvent *event) {

	}