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#include "ui/painter.h"
#include "debugtools.h"
#include <cmath>
Painter::Painter(QWidget *parent) :
QWidget(parent),
_font("Latin Modern Roman"),
_fontMetrics(_font)
{
// default font size
_font.setPixelSize(15);
}
Painter::~Painter()
{
}
void Painter::paintEvent(QPaintEvent *event)
{
Q_UNUSED(event);
if (_structogram == nullptr) {
return;
}
if (*_structogram == nullptr) {
return;
}
QPainter qp(this);
qp.setFont(_font);
// TODO default values should not be magic numbers
QRect rect(50, 50, 600, 00);
for (auto it = (*_structogram)->begin(); it != (*_structogram)->end(); ++it) {
drawStatement(qp, *it, rect);
rect.setY(rect.y() + rect.height());
}
}
void Painter::drawStatement(QPainter &qp, samb::Statement &statement, const QRect &rect)
{
QRect textRect(rect.x() + _margin,
rect.y() + _margin,
rect.width() - 2*_margin,
rect.height() - 2*_margin);
int textHeight;
if (textRect.width() < _fontMetrics.width(statement.text())) {
textHeight = (_fontMetrics.height() + _fontMetrics.lineSpacing()) *
(int) ceil(_fontMetrics.width(statement.text()) / (double) textRect.width());
} else {
textHeight = _fontMetrics.height();
}
if (textRect.height() < textHeight) {
debug_msg("painter error, textRect.height() < height");
}
qp.drawRect(rect);
qp.drawText(textRect, Qt::AlignVCenter, statement.text());
}
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