widgetfactory_p.h

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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
 
//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists for the convenience
// of Qt Designer.  This header
// file may change from version to version without notice, or even be removed.
//
// We mean it.
//
 
 
#ifndef WIDGETFACTORY_H
#define WIDGETFACTORY_H
 
#include "shared_global_p.h"
#include "pluginmanager_p.h"
 
#include <QtDesigner/abstractwidgetfactory.h>
 
#include <QtCore/qmap.h>
#include <QtCore/qhash.h>
#include <QtCore/qvariant.h>
 
QT_BEGIN_NAMESPACE
 
class QObject;
class QWidget;
class QLayout;
class QDesignerFormEditorInterface;
class QDesignerCustomWidgetInterface;
class QDesignerFormWindowInterface;
class QStyle;
 
namespace qdesigner_internal {
 
class QDESIGNER_SHARED_EXPORT WidgetFactory: public QDesignerWidgetFactoryInterface
{
    Q_OBJECT
public:
    explicit WidgetFactory(QDesignerFormEditorInterface *core, QObject *parent = nullptr);
    ~WidgetFactory();
 
    QWidget* containerOfWidget(QWidget *widget) const override;
    QWidget* widgetOfContainer(QWidget *widget) const override;
 
    QObject* createObject(const QString &className, QObject* parent) const;
 
    QWidget *createWidget(const QString &className, QWidget *parentWidget) const override;
    QLayout *createLayout(QWidget *widget, QLayout *layout, int type) const override;
 
    bool isPassiveInteractor(QWidget *widget) override;
    void initialize(QObject *object) const override;
    void initializeCommon(QWidget *object) const;
    void initializePreview(QWidget *object) const;
 
 
    QDesignerFormEditorInterface *core() const override;
 
    static QString classNameOf(QDesignerFormEditorInterface *core, const QObject* o);
 
    QDesignerFormWindowInterface *currentFormWindow(QDesignerFormWindowInterface *fw);
 
    static QLayout *createUnmanagedLayout(QWidget *parentWidget, int type);
 
    // The widget factory maintains a cache of styles which it owns.
    QString styleName() const;
    void setStyleName(const QString &styleName);
 
    /* Return a cached style matching the name or QApplication's style if
     * it is the default. */
    QStyle *getStyle(const QString &styleName);
    // Return the current style used by the factory. This either a cached one
    // or QApplication's style */
    QStyle *style() const;
 
    // Apply one of the cached styles or QApplication's style to a toplevel widget.
    void applyStyleTopLevel(const QString &styleName, QWidget *w);
    static void applyStyleToTopLevel(QStyle *style, QWidget *widget);
 
    // Return whether object was created by the factory for the form editor.
    static bool isFormEditorObject(const QObject *o);
 
    // Boolean dynamic property to set on widgets to prevent custom
    // styles from interfering
    static const char *disableStyleCustomPaintingPropertyC;
 
public slots:
    void loadPlugins();
    void activeFormWindowChanged(QDesignerFormWindowInterface *formWindow);
    void formWindowAdded(QDesignerFormWindowInterface *formWindow);
 
private:
    QWidget* createCustomWidget(const QString &className, QWidget *parentWidget, bool *creationError) const;
    QDesignerFormWindowInterface *findFormWindow(QWidget *parentWidget) const;
    void setFormWindowStyle(QDesignerFormWindowInterface *formWindow);
 
    QDesignerFormEditorInterface *m_core;
    QMap<QString, QDesignerCustomWidgetInterface *> m_customFactory;
    QDesignerFormWindowInterface *m_formWindow;
 
    // Points to the cached style or 0 if the default (qApp) is active
    QStyle *m_currentStyle;
    QHash<QString, QStyle *> m_styleCache;
};
 
} // namespace qdesigner_internal
 
QT_END_NAMESPACE
 
#endif // WIDGETFACTORY_H