/****************************************************************************

**

** Copyright (C) 2008-2010 Nokia Corporation and/or its subsidiary(-ies).

** All rights reserved.

** Contact: Nokia Corporation (developer.feedback@nokia.com)

**

** This file is part of the HbCore module of the UI Extensions for Mobile.

**

** GNU Lesser General Public License Usage

** This file may be used under the terms of the GNU Lesser General Public

** License version 2.1 as published by the Free Software Foundation and

** appearing in the file LICENSE.LGPL included in the packaging of this file.

** Please review the following information to ensure the GNU Lesser General

** Public License version 2.1 requirements will be met:

** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.

**

** In addition, as a special exception, Nokia gives you certain additional

** rights.  These rights are described in the Nokia Qt LGPL Exception

** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.

**

** If you have questions regarding the use of this file, please contact

** Nokia at developer.feedback@nokia.com.

**

****************************************************************************/

#ifndef HBCSSINSPECTOR_P_H

#define HBCSSINSPECTOR_P_H

#ifdef HB_CSS_INSPECTOR

#include <QAbstractItemModel>

#include <QStyledItemDelegate>

#include <QWidget>

#include <hbanchorlayout.h>

#include <hbwidgetbase.h>

QT_FORWARD_DECLARE_CLASS(QCheckBox)

QT_FORWARD_DECLARE_CLASS(QGraphicsItem)

QT_FORWARD_DECLARE_CLASS(QGraphicsScene)

QT_FORWARD_DECLARE_CLASS(QLabel)

QT_FORWARD_DECLARE_CLASS(QRadioButton)

QT_FORWARD_DECLARE_CLASS(QTreeView)

QT_FORWARD_DECLARE_CLASS(QTextEdit)

QT_FORWARD_DECLARE_CLASS(HbAnchorArrowDrawer)

QT_FORWARD_DECLARE_CLASS(HbMainWindow)

class HbCssInfoDrawer : public HbWidgetBase

{

    Q_OBJECT

public:

    HbCssInfoDrawer(QGraphicsItem *parent=0);

    virtual ~HbCssInfoDrawer();

public slots:

    void updateFocusItem(const QGraphicsItem* item);

protected:

    void changeEvent(QEvent *event);

    void updateColors();

    void paintRect(QPainter *painter, QRectF rect);

    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);

private:

    QColor mTextColor;

    QColor mBoxColor;

    QString mItemText;

    QString mHintText;

    QRectF mItemRect;

    QSizePolicy mItemPolicy;

    QRectF mMinHintRect;

    QRectF mPrefHintRect;

    QRectF mMaxHintRect;

    bool mShowBox;

    bool mShowItemText;

    bool mDrawGuideLines;

    bool mShowHintText;

    bool mShowMinHintBox;

    bool mShowPrefHintBox;

    bool mShowMaxHintBox;

    bool mShowSizePrefs;

};

class HoveredWidgetFilter : public QObject

{

    Q_OBJECT

public:

    HoveredWidgetFilter(QGraphicsScene *scene);

    virtual ~HoveredWidgetFilter();

signals:

    void newItemHovered(const QGraphicsItem* item);

public slots:

protected:

    bool eventFilter(QObject *obj, QEvent *event);

private:

    QGraphicsScene *mScene;

    QGraphicsItem *mCurrentItem;

    HbAnchorArrowDrawer *mArrowDrawer;

    HbCssInfoDrawer *mCssInfoDrawer;

    bool mHoverMode;

    bool mBlockingMode;

friend class HbCssInspectorWindow;

};

class CodeWidget : public QWidget

{

    Q_OBJECT

public:

    explicit CodeWidget(const QString &title, QWidget *parent=0);

    virtual ~CodeWidget();

public slots:

    void setText(const QString &text);

    void setHtml(const QString &html);

    void setLayoutDirection(Qt::LayoutDirection dir);

private:

    QLabel *mLabel;

    QTextEdit *mTextBox;

};

class CssInspectorModelItem

{

public:

        CssInspectorModelItem *parent=0);

    ~CssInspectorModelItem();

    CssInspectorModelItem *child(int i);

    CssInspectorModelItem *parent();

    int row();

private:

    QHash<int, CssInspectorModelItem*> mChildren;

    CssInspectorModelItem *mParent;

    int mRow;

};

class CssInspectorModel : public QAbstractItemModel

{

    Q_OBJECT

public:

    ~CssInspectorModel();

    QVariant data(const QModelIndex &index, int role) const;

    QVariant headerData(int section, Qt::Orientation orientation,

                        int role = Qt::DisplayRole) const;

    QModelIndex index(int row, int column,

                      const QModelIndex &parent = QModelIndex()) const;

    QModelIndex parent(const QModelIndex &child) const;

    int rowCount(const QModelIndex &parent = QModelIndex()) const;

    int columnCount(const QModelIndex &parent = QModelIndex()) const;

private:

    CssInspectorModelItem *mRootItem;

};

class ItemColorDelegate : public QStyledItemDelegate

{

    Q_OBJECT

public:

    ItemColorDelegate(QObject *parent=0);

    ~ItemColorDelegate();

    void paint(QPainter *painter, const QStyleOptionViewItem &option, 

        const QModelIndex &index) const;

};

class HbCssInspectorWindow : public QWidget

{

    Q_OBJECT

public:

    static HbCssInspectorWindow *instance();

    virtual ~HbCssInspectorWindow();

public slots:

    void updateFocusItem(const QGraphicsItem* item);

    void setVisible(bool visible);

    void refresh();

private:

    void removeFilters();

    void addFilters();

    static QString anchorsToHtmlInfo(const QGraphicsWidget *widget, const QString layoutName);

    static QString anchorItemName(QGraphicsLayoutItem* item, QGraphicsLayout* layout, bool& isIdBased);

private slots:

    void updateFromTreeView(const QModelIndex &index);

    void updateColumnSizes(const QModelIndex &index);

private:

    explicit HbCssInspectorWindow(QWidget *parent = 0);

    QVector<HoveredWidgetFilter*> mInstalledFilters;

    CodeWidget *mWidgetMLBox;

    CodeWidget *mLayoutCssBox;

    CodeWidget *mColorsCssBox;

    QTreeView *mTreeView;

    QLabel *mPathLabel;

    QLabel *mSizeHintLabel;

    QLabel *mSizePolicyHoriz;

    QLabel *mSizePolicyVert;

    QCheckBox *mObjectNameCheck;

    QCheckBox *mAnchorArrowsCheck;

    QCheckBox *mSubitemOutlinesCheck;

    QCheckBox *mSpacersCheck;

    QCheckBox *mGuideLinesCheck;

    QCheckBox *mSizeHintTextCheck;

    QCheckBox *mMinSizeHintCheck;

    QCheckBox *mPrefSizeHintCheck;

    QCheckBox *mMaxSizeHintCheck;

    QCheckBox *mSizePrefCheck;

    QRadioButton *mHoverRadio;

    QRadioButton *mClickRadio;

    QRadioButton *mBlockRadio;

};

#endif

#endif // HBCSSINSPECTOR_P_H