QT pluginInterface示例
时间: 2023-07-04 14:20:24 浏览: 56
下面是一个简单的QT插件示例,其中使用了Qt的pluginInterface:
myplugin.h:
```cpp
#include <QtUiPlugin/QDesignerCustomWidgetInterface>
class MyPlugin : public QObject, public QDesignerCustomWidgetInterface
{
Q_OBJECT
Q_PLUGIN_METADATA(IID "org.qt-project.Qt.QDesignerCustomWidgetInterface")
Q_INTERFACES(QDesignerCustomWidgetInterface)
public:
explicit MyPlugin(QObject *parent = nullptr);
QString name() const override;
QString group() const override;
QString toolTip() const override;
QString whatsThis() const override;
QString includeFile() const override;
QIcon icon() const override;
bool isContainer() const override;
QWidget *createWidget(QWidget *parent) override;
bool isInitialized() const override;
void initialize(QDesignerFormEditorInterface *core) override;
private:
bool initialized = false;
};
```
myplugin.cpp:
```cpp
#include "myplugin.h"
#include "mywidget.h"
MyPlugin::MyPlugin(QObject *parent) : QObject(parent)
{}
QString MyPlugin::name() const
{
return "MyWidget";
}
QString MyPlugin::group() const
{
return "Custom Widgets";
}
QString MyPlugin::toolTip() const
{
return tr("My custom widget");
}
QString MyPlugin::whatsThis() const
{
return tr("My custom widget for use in Qt Designer");
}
QString MyPlugin::includeFile() const
{
return "mywidget.h";
}
QIcon MyPlugin::icon() const
{
return QIcon();
}
bool MyPlugin::isContainer() const
{
return false;
}
QWidget *MyPlugin::createWidget(QWidget *parent)
{
return new MyWidget(parent);
}
bool MyPlugin::isInitialized() const
{
return initialized;
}
void MyPlugin::initialize(QDesignerFormEditorInterface *core)
{
Q_UNUSED(core);
initialized = true;
}
```
注意,在myplugin.h文件中,我们使用了Q_PLUGIN_METADATA和Q_INTERFACES宏,以便将插件注册到Qt的插件系统中。
我们还实现了QDesignerCustomWidgetInterface接口,并重写了它的方法来定义插件的属性和行为。
在myplugin.cpp文件中,我们实现了createWidget方法来创建我们的自定义小部件,以及isInitialized和initialize方法来管理插件的初始化。