subsurface/profile-widget/divetextitem.h
Berthold Stoeger 2ebe6e3684 profile: set alignment and scale of DiveTextItem at construction
Alignment and scale of DiveTextItems are never changed. Therefore,
pass them at construction time. This makes things much easier
if we want to cache the rendered text [currently the text is
rerendered at every paint() event].

This also removes the "parent=0" default parameter of the
constructor, because inadvertently leaving out the last argument
led to a subtle bug.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
2021-12-17 11:54:23 -08:00

36 lines
997 B
C++

// SPDX-License-Identifier: GPL-2.0
#ifndef DIVETEXTITEM_H
#define DIVETEXTITEM_H
#include <QObject>
#include <QFont>
#include <QGraphicsItemGroup>
class QBrush;
/* A Line Item that has animated-properties. */
class DiveTextItem : public QObject, public QGraphicsItemGroup {
Q_OBJECT
Q_PROPERTY(QPointF pos READ pos WRITE setPos)
Q_PROPERTY(qreal opacity READ opacity WRITE setOpacity)
public:
DiveTextItem(double dpr, double scale, int alignFlags, QGraphicsItem *parent);
void setText(const QString &text);
void setBrush(const QBrush &brush);
const QString &text();
void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
static QFont getFont(double dpr, double scale);
static double fontHeight(double dpr, double scale);
double height() const;
private:
void updateText();
int internalAlignFlags;
QGraphicsPathItem *textBackgroundItem;
QGraphicsPathItem *textItem;
QString internalText;
double dpr;
double scale;
};
#endif // DIVETEXTITEM_H