1 files changed, 293 insertions, 0 deletions
diff --git a/doc/codesnippets/doc/src/snippets/code/doc_src_qtdesigner.qdoc b/doc/codesnippets/doc/src/snippets/code/doc_src_qtdesigner.qdoc
new file mode 100644
index 000000000..b19a7472a
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+++ b/doc/codesnippets/doc/src/snippets/code/doc_src_qtdesigner.qdoc
@@ -0,0 +1,293 @@
+//! [0]
+#include <QtDesigner>
+//! [0]
+
+
+//! [1]
+CONFIG += designer
+//! [1]
+
+
+//! [2]
+QDesignerMemberSheetExtension *memberSheet  = 0;
+QExtensionManager manager = formEditor->extensionManager();
+
+memberSheet = qt_extension<QDesignerMemberSheetExtension*>(manager, widget);
+int index = memberSheet->indexOf(setEchoMode);
+memberSheet->setVisible(index, false);
+
+delete memberSheet;
+//! [2]
+
+
+//! [3]
+class MyMemberSheetExtension : public QObject,
+        public QDesignerMemberSheetExtension
+{
+    Q_OBJECT
+    Q_INTERFACES(QDesignerMemberSheetExtension)
+
+public:
+    ...
+}
+//! [3]
+
+
+//! [4]
+QObject *ANewExtensionFactory::createExtension(QObject *object,
+        const QString &iid, QObject *parent) const
+{
+    if (iid != Q_TYPEID(QDesignerMemberSheetExtension))
+        return 0;
+
+    if (MyCustomWidget *widget = qobject_cast<MyCustomWidget*>
+           (object))
+        return new MyMemberSheetExtension(widget, parent);
+
+    return 0;
+}
+//! [4]
+
+
+//! [5]
+QObject *AGeneralExtensionFactory::createExtension(QObject *object,
+        const QString &iid, QObject *parent) const
+{
+    MyCustomWidget *widget = qobject_cast<MyCustomWidget*>(object);
+
+    if (widget && (iid == Q_TYPEID(QDesignerTaskMenuExtension))) {
+        return new MyTaskMenuExtension(widget, parent);
+
+    } else if (widget && (iid == Q_TYPEID(QDesignerMemberSheetExtension))) {
+        return new MyMemberSheetExtension(widget, parent);
+
+    } else {
+        return 0;
+    }
+}
+//! [5]
+
+
+//! [6]
+class MyContainerExtension : public QObject,
+       public QDesignerContainerExtension
+{
+    Q_OBJECT
+    Q_INTERFACES(QDesignerContainerExtension)
+
+public:
+    MyContainerExtension(MyCustomWidget *widget,
+                         QObject *parent = 0);
+    int count() const;
+    QWidget *widget(int index) const;
+    int currentIndex() const;
+    void setCurrentIndex(int index);
+    void addWidget(QWidget *widget);
+    void insertWidget(int index, QWidget *widget);
+    void remove(int index);
+
+private:
+    MyCustomWidget *myWidget;
+};
+//! [6]
+
+
+//! [7]
+QObject *ANewExtensionFactory::createExtension(QObject *object,
+        const QString &iid, QObject *parent) const
+{
+    if (iid != Q_TYPEID(QDesignerContainerExtension))
+        return 0;
+
+    if (MyCustomWidget *widget = qobject_cast<MyCustomWidget*>
+           (object))
+        return new MyContainerExtension(widget, parent);
+
+    return 0;
+}
+//! [7]
+
+
+//! [8]
+QObject *AGeneralExtensionFactory::createExtension(QObject *object,
+        const QString &iid, QObject *parent) const
+{
+    MyCustomWidget *widget = qobject_cast<MyCustomWidget*>(object);
+
+    if (widget && (iid == Q_TYPEID(QDesignerTaskMenuExtension))) {
+        return new MyTaskMenuExtension(widget, parent);
+
+    } else if (widget && (iid == Q_TYPEID(QDesignerContainerExtension))) {
+        return new MyContainerExtension(widget, parent);
+
+    } else {
+        return 0;
+    }
+}
+//! [8]
+
+
+//! [9]
+class MyTaskMenuExtension : public QObject,
+        public QDesignerTaskMenuExtension
+{
+    Q_OBJECT
+    Q_INTERFACES(QDesignerTaskMenuExtension)
+
+public:
+    MyTaskMenuExtension(MyCustomWidget *widget, QObject *parent);
+
+    QAction *preferredEditAction() const;
+    QList<QAction *> taskActions() const;
+
+private slots:
+    void mySlot();
+
+private:
+    MyCustomWidget *widget;
+    QAction *myAction;
+};
+//! [9]
+
+
+//! [10]
+QObject *ANewExtensionFactory::createExtension(QObject *object,
+        const QString &iid, QObject *parent) const
+{
+    if (iid != Q_TYPEID(QDesignerTaskMenuExtension))
+        return 0;
+
+    if (MyCustomWidget *widget = qobject_cast<MyCustomWidget*>(object))
+        return new MyTaskMenuExtension(widget, parent);
+
+    return 0;
+}
+//! [10]
+
+
+//! [11]
+QObject *AGeneralExtensionFactory::createExtension(QObject *object,
+        const QString &iid, QObject *parent) const
+{
+    MyCustomWidget *widget = qobject_cast<MyCustomWidget*>(object);
+
+    if (widget && (iid == Q_TYPEID(QDesignerContainerExtension))) {
+        return new MyContainerExtension(widget, parent);
+
+    } else if (widget && (iid == Q_TYPEID(QDesignerTaskMenuExtension))) {
+        return new MyTaskMenuExtension(widget, parent);
+
+    } else {
+        return 0;
+    }
+}
+//! [11]
+
+
+//! [12]
+#include customwidgetoneinterface.h
+#include customwidgettwointerface.h
+#include customwidgetthreeinterface.h
+
+#include <QtDesigner/QtDesigner>
+#include <QtCore/qplugin.h>
+
+class MyCustomWidgets: public QObject, public QDesignerCustomWidgetCollectionInterface
+{
+    Q_OBJECT
+    Q_INTERFACES(QDesignerCustomWidgetCollectionInterface)
+
+public:
+    MyCustomWidgets(QObject *parent = 0);
+
+    virtual QList<QDesignerCustomWidgetInterface*> customWidgets() const;
+
+private:
+    QList<QDesignerCustomWidgetInterface*> widgets;
+};
+//! [12]
+
+
+//! [13]
+MyCustomWidgets::MyCustomWidgets(QObject *parent)
+        : QObject(parent)
+{
+    widgets.append(new CustomWidgetOneInterface(this));
+    widgets.append(new CustomWidgetTwoInterface(this));
+    widgets.append(new CustomWidgetThreeInterface(this));
+}
+
+QList<QDesignerCustomWidgetInterface*> MyCustomWidgets::customWidgets() const
+{
+    return widgets;
+}
+
+Q_EXPORT_PLUGIN2(customwidgetsplugin, MyCustomWidgets)
+//! [13]
+
+
+//! [14]
+Q_EXPORT_PLUGIN2(customwidgetplugin, MyCustomWidget)
+//! [14]
+
+
+//! [15]
+QDesignerPropertySheetExtension *propertySheet  = 0;
+QExtensionManager manager = formEditor->extensionManager();
+
+propertySheet = qt_extension<QDesignerPropertySheetExtension*>(manager, widget);
+int index = propertySheet->indexOf(QLatin1String("margin"));
+
+propertySheet->setProperty(index, 10);
+propertySheet->setChanged(index, true);
+
+delete propertySheet;
+//! [15]
+
+
+//! [16]
+class MyPropertySheetExtension : public QObject,
+        public QDesignerPropertySheetExtension
+{
+    Q_OBJECT
+    Q_INTERFACES(QDesignerPropertySheetExtension)
+
+public:
+    ...
+}
+//! [16]
+
+
+//! [17]
+QObject *ANewExtensionFactory::createExtension(QObject *object,
+        const QString &iid, QObject *parent) const
+{
+    if (iid != Q_TYPEID(QDesignerPropertySheetExtension))
+        return 0;
+
+    if (MyCustomWidget *widget = qobject_cast<MyCustomWidget*>
+           (object))
+        return new MyPropertySheetExtension(widget, parent);
+
+    return 0;
+}
+//! [17]
+
+
+//! [18]
+QObject *AGeneralExtensionFactory::createExtension(QObject *object,
+        const QString &iid, QObject *parent) const
+{
+    MyCustomWidget *widget = qobject_cast<MyCustomWidget*>(object);
+
+    if (widget && (iid == Q_TYPEID(QDesignerTaskMenuExtension))) {
+        return new MyTaskMenuExtension(widget, parent);
+
+    } else if (widget && (iid == Q_TYPEID(QDesignerPropertySheetExtension))) {
+        return new MyPropertySheetExtension(widget, parent);
+
+    } else {
+        return 0;
+    }
+}
+//! [18]