/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the Qt Designer of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:GPL-EXCEPT$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
** be met: https://www.gnu.org/licenses/gpl-3.0.html.
**
** $QT_END_LICENSE$
**
****************************************************************************/

#ifndef ABSTRACTFORMWINDOW_H
#define ABSTRACTFORMWINDOW_H

#include <QtDesigner/sdk_global.h>

#include <QtWidgets/qwidget.h>

QT_BEGIN_NAMESPACE

class QDesignerFormEditorInterface;
class QDesignerFormWindowCursorInterface;
class QDesignerFormWindowToolInterface;
class QUndoStack;
class QDir;
class QtResourceSet;

class QDESIGNER_SDK_EXPORT QDesignerFormWindowInterface: public QWidget
{
    Q_OBJECT
public:
    enum FeatureFlag
    {
        EditFeature = 0x01,
        GridFeature = 0x02,
        TabOrderFeature = 0x04,
        DefaultFeature = EditFeature | GridFeature
    };
    Q_DECLARE_FLAGS(Feature, FeatureFlag)

    enum ResourceFileSaveMode
    {
        SaveAllResourceFiles,
        SaveOnlyUsedResourceFiles,
        DontSaveResourceFiles
    };
    Q_ENUM(ResourceFileSaveMode)

    explicit QDesignerFormWindowInterface(QWidget *parent = nullptr, Qt::WindowFlags flags = {});
    virtual ~QDesignerFormWindowInterface();

    virtual QString fileName() const = 0;
    virtual QDir absoluteDir() const = 0;

    virtual QString contents() const = 0;
    virtual QStringList checkContents() const = 0;
    virtual bool setContents(QIODevice *dev, QString *errorMessage = nullptr) = 0;

    virtual Feature features() const = 0;
    virtual bool hasFeature(Feature f) const = 0;

    virtual QString author() const = 0;
    virtual void setAuthor(const QString &author) = 0;

    virtual QString comment() const = 0;
    virtual void setComment(const QString &comment) = 0;

    virtual void layoutDefault(int *margin, int *spacing) = 0;
    virtual void setLayoutDefault(int margin, int spacing) = 0;

    virtual void layoutFunction(QString *margin, QString *spacing) = 0;
    virtual void setLayoutFunction(const QString &margin, const QString &spacing) = 0;

    virtual QString pixmapFunction() const = 0;
    virtual void setPixmapFunction(const QString &pixmapFunction) = 0;

    virtual QString exportMacro() const = 0;
    virtual void setExportMacro(const QString &exportMacro) = 0;

    virtual QStringList includeHints() const = 0;
    virtual void setIncludeHints(const QStringList &includeHints) = 0;

    virtual ResourceFileSaveMode resourceFileSaveMode() const = 0;
    virtual void setResourceFileSaveMode(ResourceFileSaveMode behaviour) = 0;

    virtual QtResourceSet *resourceSet() const =  0;
    virtual void setResourceSet(QtResourceSet *resourceSet) = 0;

    QStringList activeResourceFilePaths() const;

    virtual QDesignerFormEditorInterface *core() const;
    virtual QDesignerFormWindowCursorInterface *cursor() const = 0;

    virtual int toolCount() const = 0;

    virtual int currentTool() const = 0;
    virtual void setCurrentTool(int index) = 0;

    virtual QDesignerFormWindowToolInterface *tool(int index) const = 0;
    virtual void registerTool(QDesignerFormWindowToolInterface *tool) = 0;

    virtual QPoint grid() const = 0;

    virtual QWidget *mainContainer() const = 0;
    virtual void setMainContainer(QWidget *mainContainer) = 0;
    virtual QWidget *formContainer() const = 0;

    virtual bool isManaged(QWidget *widget) const = 0;

    virtual bool isDirty() const = 0;

    static QDesignerFormWindowInterface *findFormWindow(QWidget *w);
    static QDesignerFormWindowInterface *findFormWindow(QObject *obj);

    virtual QUndoStack *commandHistory() const = 0;
    virtual void beginCommand(const QString &description) = 0;
    virtual void endCommand() = 0;

    virtual void simplifySelection(QList<QWidget*> *widgets) const = 0;

    // notifications
    virtual void emitSelectionChanged() = 0;

    virtual QStringList resourceFiles() const = 0;
    virtual void addResourceFile(const QString &path) = 0;
    virtual void removeResourceFile(const QString &path) = 0;

    virtual void ensureUniqueObjectName(QObject *object) = 0;

public Q_SLOTS:
    virtual void manageWidget(QWidget *widget) = 0;
    virtual void unmanageWidget(QWidget *widget) = 0;

    virtual void setFeatures(Feature f) = 0;
    virtual void setDirty(bool dirty) = 0;
    virtual void clearSelection(bool changePropertyDisplay = true) = 0;
    virtual void selectWidget(QWidget *w, bool select = true) = 0;
    virtual void setGrid(const QPoint &grid) = 0;
    virtual void setFileName(const QString &fileName) = 0;
    virtual bool setContents(const QString &contents) = 0;

    virtual void editWidgets() = 0;
    void activateResourceFilePaths(const QStringList &paths, int *errorCount = nullptr, QString *errorMessages = nullptr);

Q_SIGNALS:
    void mainContainerChanged(QWidget *mainContainer);
    void toolChanged(int toolIndex);
    void fileNameChanged(const QString &fileName);
    void featureChanged(Feature f);
    void selectionChanged();
    void geometryChanged();

    void resourceFilesChanged();

    void widgetManaged(QWidget *widget);
    void widgetUnmanaged(QWidget *widget);
    void aboutToUnmanageWidget(QWidget *widget);
    void activated(QWidget *widget);

    void changed();
    void widgetRemoved(QWidget *w);
    void objectRemoved(QObject *o);
};

QT_END_NAMESPACE

#endif // ABSTRACTFORMWINDOW_H
