CODEWITHSUNDEEP
c++qtqt5qt-designer
Nicholas Johnson
Nicholas Johnson

Reputation: 1022

Qt Custom Widget Plugin Q_Property With Enum

In my custom designer widget plugin I have a custom widget that derives QProgressBar. I have a field to chose either a determinate or indeterminate state. For this I have simply made an enum with the two states. I would like to use these values in the QtDesigner widget property area via implementing a Q_PROPERTY macro as follows:

class QDESIGNER_WIDGET_EXPORT QtMaterialProgress : public QProgressBar
{   
    Q_OBJECT
    Q_PROPERTY(QColor progressColor WRITE setProgressColor READ progressColor)
    Q_PROPERTY(QColor backgroundColor WRITE setProgressColor READ backgroundColor)
    Q_PROPERTY(Material::ProgressType progressType WRITE setProgressType READ progressType)
.....

And also here is the enum declaration:

enum ProgressType
{
    DeterminateProgress,
    IndeterminateProgress
};

I would expect this piece of code to produce a QComboBox in the property editor of QtDesigner with the two states, however I get non of the such. I have also tried adding Q_ENUMS(PropertyType) to the header with no luck.

Upvotes: 1

Views: 1008

Answers (1)

eyllanesc
eyllanesc

Reputation: 243955

You have to use Q_ENUM (Not Q_ENUMS since it is deprecated from Qt 5.5: https://doc.qt.io/qt-5/whatsnew55.html) as the following example shows: 

#ifndef TESTWIDGET_H
#define TESTWIDGET_H

#include <QWidget>

class TestWidget : public QWidget
{
    Q_OBJECT
    Q_PROPERTY(EnumTest test READ test WRITE setTest)
public:
    TestWidget(QWidget *parent = 0);

    enum EnumTest { ENUM0, ENUM1, ENUM2, ENUM3 };
    Q_ENUM(EnumTest)

    EnumTest test() const;
    void setTest(const EnumTest &test);

private:
    EnumTest mTest;
};

#endif

enter image description here

In the following link you can find a complete example

Upvotes: 2

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