Call Constructor within Designer

[wysota]

You forgot the Q_OBJECT macro.

[Lykurg]

• use Q_OBJECT in your class OwnButton
• use the right property name in the designer! (MyImage not setImate)

and then, if you set QPixmap as a value in the custom property folowing is created:

pushButton->setProperty("MyImage", QVariant(QPixmap(QString::fromUtf8(":/button_1.png"))));

pushButton->setProperty("MyImage", QVariant(QPixmap(QString::fromUtf8(":/button_1.png"))));

To copy to clipboard, switch view to plain text mode 

So you have to provide QPixmap-setter like in your first code post, but also inside the Q_PROPERTY! then it works.

[NoRulez]

Ok, many thanks

For those who also problems with this have, here is the corrected class:

ownbutton.h:

#ifndef OWNBUTTON_H
#define OWNBUTTON_H
 
#include <QtGui>
#include <QPixmap>
 
class OwnButton : public QPushButton {
    Q_OBJECT
    Q_PROPERTY(QPixmap pixmap READ pixmap WRITE setPixmap)
 
public:
    OwnButton(QWidget *parent = 0);
    QSize sizeHint() const;
    QSize minimumSizeHint() const;
    const QPixmap *pixmap() const;
    virtual void setPixmap(const QPixmap &image);
 
protected:
    void paintEvent(QPaintEvent *event);
 
private:
    QPixmap _pixmap;
};
 
#endif // OWNBUTTON_H

#ifndef OWNBUTTON_H
#define OWNBUTTON_H

#include <QtGui>
#include <QPixmap>

class OwnButton : public QPushButton {
    Q_OBJECT
    Q_PROPERTY(QPixmap pixmap READ pixmap WRITE setPixmap)

public:
    OwnButton(QWidget *parent = 0);
    QSize sizeHint() const;
    QSize minimumSizeHint() const;
    const QPixmap *pixmap() const;
    virtual void setPixmap(const QPixmap &image);

protected:
    void paintEvent(QPaintEvent *event);

private:
    QPixmap _pixmap;
};

#endif // OWNBUTTON_H

To copy to clipboard, switch view to plain text mode 

ownbutton.cpp:

#include "ownbutton.h"
#include <QtGui>
 
OwnButton::OwnButton(QWidget *parent) : QPushButton(parent) {
}
 
QSize OwnButton::sizeHint() const {
    return QSize(_pixmap.width(), _pixmap.height());
}
 
QSize OwnButton::minimumSizeHint() const {
    return QSize(_pixmap.width(), _pixmap.height());
}
 
void OwnButton::paintEvent(QPaintEvent *event) {
    QPainter painter(this);
 
    painter.drawPixmap(0, 0, _pixmap.size().width(), _pixmap.size().height(), _pixmap);
    painter.drawRect(0, 0, _pixmap.size().width()-1, _pixmap.size().height()-1);
}
 
const QPixmap *OwnButton::pixmap() const {
    return &_pixmap;
}
 
void OwnButton::setPixmap(const QPixmap &image) {
    _pixmap = image;
    this->resize(_pixmap.size().width(), _pixmap.size().height());
    QWidget::updateGeometry();
}

#include "ownbutton.h"
#include <QtGui>

OwnButton::OwnButton(QWidget *parent) : QPushButton(parent) {
}

QSize OwnButton::sizeHint() const {
    return QSize(_pixmap.width(), _pixmap.height());
}

QSize OwnButton::minimumSizeHint() const {
    return QSize(_pixmap.width(), _pixmap.height());
}

void OwnButton::paintEvent(QPaintEvent *event) {
    QPainter painter(this);

    painter.drawPixmap(0, 0, _pixmap.size().width(), _pixmap.size().height(), _pixmap);
    painter.drawRect(0, 0, _pixmap.size().width()-1, _pixmap.size().height()-1);
}

const QPixmap *OwnButton::pixmap() const {
    return &_pixmap;
}

void OwnButton::setPixmap(const QPixmap &image) {
    _pixmap = image;
    this->resize(_pixmap.size().width(), _pixmap.size().height());
    QWidget::updateGeometry();
}

To copy to clipboard, switch view to plain text mode 

Regards
NoRulez