Q3EditorFactory Class Reference

#include <q3editorfactory.h>

Inheritance diagram for Q3EditorFactory:

[legend]Collaboration diagram for Q3EditorFactory:

[legend]List of all members.

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Detailed Description

The Q3EditorFactory class is used to create editor widgets for QVariant data types.

Each editor factory provides the createEditor() function which given a QVariant will create and return a QWidget that can edit that QVariant. For example if you have a QVariant::String type, a QLineEdit would be the default editor returned, whereas a QVariant::Int's default editor would be a QSpinBox.

If you want to create different editors for fields with the same data type, subclass Q3EditorFactory and reimplement the createEditor() function.

Definition at line 36 of file q3editorfactory.h.

Public Member Functions
	Q3EditorFactory (QObject *parent=0)
	~Q3EditorFactory ()
virtual QWidget *	createEditor (QWidget *parent, const QVariant &v)
Static Public Member Functions
static Q3EditorFactory *	defaultFactory ()
static void	installDefaultFactory (Q3EditorFactory *factory)

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Constructor & Destructor Documentation

Q3EditorFactory::Q3EditorFactory

(

QObject *

parent = 0

)

Constructs an editor factory with parent parent.

Definition at line 57 of file q3editorfactory.cpp.

Referenced by defaultFactory().

    : QObject(parent)
{

}

Q3EditorFactory::~Q3EditorFactory

(

)

Destroys the object and frees any allocated resources.

Definition at line 67 of file q3editorfactory.cpp.

{

}

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Member Function Documentation

QWidget * Q3EditorFactory::createEditor	(	QWidget *	parent,
		const QVariant &	v
	)			[virtual]

Creates and returns the appropriate editor for the QVariant v. If the QVariant is invalid, 0 is returned. The parent is passed to the appropriate editor's constructor.

Definition at line 113 of file q3editorfactory.cpp.

References QVariant::Bitmap, QVariant::Bool, QVariant::Brush, QVariant::ByteArray, QVariant::Color, QVariant::Cursor, QVariant::Date, QVariant::DateTime, QVariant::Double, QVariant::Font, QVariant::Int, QVariant::Invalid, QVariant::Map, QVariant::Palette, QObject::parent(), QVariant::Pixmap, QVariant::Point, QObject::QWidget, QVariant::Rect, QVariant::Region, QDateTimeEdit::setDisplayFormat(), QObject::setObjectName(), QVariant::Size, QVariant::SizePolicy, QVariant::String, QVariant::StringList, QVariant::Time, QVariant::type(), QVariant::UInt, and w.

Referenced by Q3SqlEditorFactory::createEditor().

{
    QWidget * w = 0;
    switch(v.type()){
        case QVariant::Invalid:
            w = 0;
            break;
        case QVariant::Bool:
            w = new QComboBox(parent, "qt_editor_bool");
            ((QComboBox *) w)->insertItem("False");
            ((QComboBox *) w)->insertItem("True");
            break;
        case QVariant::UInt:
            w = new QSpinBox(0, 999999, 1, parent, "qt_editor_spinbox");
            break;
        case QVariant::Int:
            w = new QSpinBox(-999999, 999999, 1, parent, "qt_editor_int");
            break;
        case QVariant::String:
        case QVariant::Double:
            w = new QLineEdit(parent, "qt_editor_double");
            ((QLineEdit*)w)->setFrame(false);
            break;
        case QVariant::Date: {
            QDateTimeEdit *edit = new QDateTimeEdit(parent);
            edit->setDisplayFormat("yyyy/MM/dd");
            edit->setObjectName("qt_editor_date");
            w = edit; }
            break;
        case QVariant::Time: {
            QDateTimeEdit *edit = new QDateTimeEdit(parent);
            edit->setDisplayFormat("hh:mm");
            edit->setObjectName("qt_editor_time");
            w = edit; }
            break;
        case QVariant::DateTime:
            w = new QDateTimeEdit(parent);
            w->setObjectName("qt_editor_datetime");
            break;
#ifndef QT_NO_LABEL
        case QVariant::Pixmap:
            w = new QLabel(parent, "qt_editor_pixmap");
            break;
#endif
        case QVariant::Palette:
        case QVariant::Color:
        case QVariant::Font:
        case QVariant::Brush:
        case QVariant::Bitmap:
        case QVariant::Cursor:
        case QVariant::Map:
        case QVariant::StringList:
        case QVariant::Rect:
        case QVariant::Size:
        case QVariant::IconSet:
        case QVariant::Point:
        case QVariant::PointArray:
        case QVariant::Region:
        case QVariant::SizePolicy:
        case QVariant::ByteArray:
        default:
            w = new QWidget(parent, "qt_editor_default");
            break;
    }
    return w;
}

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Q3EditorFactory * Q3EditorFactory::defaultFactory

(

)

[static]

Returns an instance of a default editor factory.

Definition at line 79 of file q3editorfactory.cpp.

References defaultfactory, Q3EditorFactory(), and q_cleanup_editor_factory.

{
    if(defaultfactory == 0){
        defaultfactory = new Q3EditorFactory();
        q_cleanup_editor_factory.add(&defaultfactory);
    }

    return defaultfactory;
}

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void Q3EditorFactory::installDefaultFactory

(

Q3EditorFactory *

factory

)

[static]

Replaces the default editor factory with factory. {Q3EditorFactory takes ownership of factory, and destroys it when it is no longer needed.}

Definition at line 95 of file q3editorfactory.cpp.

References defaultfactory, and q_cleanup_editor_factory.

{
    if(factory == 0 || factory == defaultfactory) return;

    if(defaultfactory != 0){
        q_cleanup_editor_factory.remove(&defaultfactory);
        delete defaultfactory;
    }
    defaultfactory = factory;
    q_cleanup_editor_factory.add(&defaultfactory);
}

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The documentation for this class was generated from the following files:

• src/qt3support/sql/q3editorfactory.h
• src/qt3support/sql/q3editorfactory.cpp

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