QFormBuilder Class Reference
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QtDesigner

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The QFormBuilder class is used to dynamically construct user interfaces from UI files at run-time. 更多...

方法

__init__ ( self )
addPluginPath ( self , QString pluginPath )
clearPluginPaths ( self )
list-of-QDesignerCustomWidgetInterface customWidgets ( self )
QStringList pluginPaths ( self )
setPluginPath ( self , QStringList pluginPaths )

详细描述

The QFormBuilder class is used to dynamically construct user interfaces from UI files at run-time.

The QFormBuilder class provides a mechanism for dynamically creating user interfaces at run-time, based on UI files created with Qt Designer 。例如：

         MyForm.MyForm(QWidget *parent)
             : QWidget(parent)
         {
             QFormBuilder builder;
             QFile file(":/forms/myWidget.ui");
             file.open(QFile.ReadOnly);
             QWidget *myWidget = builder.load(&file, this);
             file.close();
             QVBoxLayout *layout = new QVBoxLayout;
             layout->addWidget(myWidget);
             setLayout(layout);
         }

By including the user interface in the example's resources ( myForm.qrc ), we ensure that it will be present when the example is run:

     <!DOCTYPE RCC><RCC version="1.0">
     <qresource prefix="/forms">
        <file>mywidget.ui</file>
     </qresource>
     </RCC>

QFormBuilder extends the QAbstractFormBuilder base class with a number of functions that are used to support custom widget plugins:

pluginPaths () returns the list of paths that the form builder searches when loading custom widget plugins.
addPluginPath () allows additional paths to be registered with the form builder.
setPluginPath () is used to replace the existing list of paths with a list obtained from some other source.
clearPluginPaths () removes all paths registered with the form builder.
customWidgets () returns a list of interfaces to plugins that can be used to create new instances of registered custom widgets.

The QFormBuilder class is typically used by custom components and applications that embed Qt Designer . Standalone applications that need to dynamically generate user interfaces at run-time use the QUiLoader class, found in the QtUiTools 模块。

方法文档编制

QFormBuilder.init ( self )

Constructs a new form builder.

QFormBuilder.addPluginPath ( self , QString pluginPath )

Adds a new plugin path specified by pluginPath 到 list of paths that will be searched by the form builder when loading a custom widget plugin.

另请参阅 setPluginPath () 和 clearPluginPaths ().

QFormBuilder.clearPluginPaths ( self )

Clears the list of paths that the form builder uses to search for custom widget plugins.

另请参阅 pluginPaths ().

list-of-QDesignerCustomWidgetInterface QFormBuilder.customWidgets ( self )

Returns a list of the available plugins.

QStringList QFormBuilder.pluginPaths ( self )

Returns the list of paths the form builder searches for 插件。

另请参阅 addPluginPath ().

QFormBuilder.setPluginPath ( self , QStringList pluginPaths )

Sets the list of plugin paths to the list specified by pluginPaths .