// Commit: 27e4302b7f45f22180693d26747f419177c81e27
/****************************************************************************
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** This file is part of the QtDeclarative module of the Qt Toolkit.
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** $QT_BEGIN_LICENSE:LGPL$
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
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** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
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** $QT_END_LICENSE$
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****************************************************************************/

#ifndef QQUICKTEXTEDIT_P_H
#define QQUICKTEXTEDIT_P_H

#include "qquickimplicitsizeitem_p.h"

#include <QtGui/qtextoption.h>

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

class QQuickTextEditPrivate;
class Q_AUTOTEST_EXPORT QQuickTextEdit : public QQuickImplicitSizeItem
{
    Q_OBJECT
    Q_ENUMS(VAlignment)
    Q_ENUMS(HAlignment)
    Q_ENUMS(TextFormat)
    Q_ENUMS(WrapMode)
    Q_ENUMS(SelectionMode)

    Q_PROPERTY(QString text READ text WRITE setText NOTIFY textChanged)
    Q_PROPERTY(QColor color READ color WRITE setColor NOTIFY colorChanged)
    Q_PROPERTY(QColor selectionColor READ selectionColor WRITE setSelectionColor NOTIFY selectionColorChanged)
    Q_PROPERTY(QColor selectedTextColor READ selectedTextColor WRITE setSelectedTextColor NOTIFY selectedTextColorChanged)
    Q_PROPERTY(QFont font READ font WRITE setFont NOTIFY fontChanged)
    Q_PROPERTY(HAlignment horizontalAlignment READ hAlign WRITE setHAlign RESET resetHAlign NOTIFY horizontalAlignmentChanged)
    Q_PROPERTY(HAlignment effectiveHorizontalAlignment READ effectiveHAlign NOTIFY effectiveHorizontalAlignmentChanged)
    Q_PROPERTY(VAlignment verticalAlignment READ vAlign WRITE setVAlign NOTIFY verticalAlignmentChanged)
    Q_PROPERTY(WrapMode wrapMode READ wrapMode WRITE setWrapMode NOTIFY wrapModeChanged)
    Q_PROPERTY(int lineCount READ lineCount NOTIFY lineCountChanged)
    Q_PROPERTY(int length READ length NOTIFY textChanged)
    Q_PROPERTY(qreal contentWidth READ contentWidth NOTIFY contentSizeChanged)
    Q_PROPERTY(qreal contentHeight READ contentHeight NOTIFY contentSizeChanged)
    Q_PROPERTY(qreal paintedWidth READ contentWidth NOTIFY contentSizeChanged)  // Compatibility
    Q_PROPERTY(qreal paintedHeight READ contentHeight NOTIFY contentSizeChanged)
    Q_PROPERTY(TextFormat textFormat READ textFormat WRITE setTextFormat NOTIFY textFormatChanged)
    Q_PROPERTY(bool readOnly READ isReadOnly WRITE setReadOnly NOTIFY readOnlyChanged)
    Q_PROPERTY(bool cursorVisible READ isCursorVisible WRITE setCursorVisible NOTIFY cursorVisibleChanged)
    Q_PROPERTY(int cursorPosition READ cursorPosition WRITE setCursorPosition NOTIFY cursorPositionChanged)
    Q_PROPERTY(QRect cursorRectangle READ cursorRectangle NOTIFY cursorRectangleChanged)
    Q_PROPERTY(QDeclarativeComponent* cursorDelegate READ cursorDelegate WRITE setCursorDelegate NOTIFY cursorDelegateChanged)
    Q_PROPERTY(int selectionStart READ selectionStart NOTIFY selectionStartChanged)
    Q_PROPERTY(int selectionEnd READ selectionEnd NOTIFY selectionEndChanged)
    Q_PROPERTY(QString selectedText READ selectedText NOTIFY selectionChanged)
    Q_PROPERTY(bool activeFocusOnPress READ focusOnPress WRITE setFocusOnPress NOTIFY activeFocusOnPressChanged)
    Q_PROPERTY(bool persistentSelection READ persistentSelection WRITE setPersistentSelection NOTIFY persistentSelectionChanged)
    Q_PROPERTY(qreal textMargin READ textMargin WRITE setTextMargin NOTIFY textMarginChanged)
    Q_PROPERTY(Qt::InputMethodHints inputMethodHints READ inputMethodHints WRITE setInputMethodHints)
    Q_PROPERTY(bool selectByMouse READ selectByMouse WRITE setSelectByMouse NOTIFY selectByMouseChanged)
    Q_PROPERTY(SelectionMode mouseSelectionMode READ mouseSelectionMode WRITE setMouseSelectionMode NOTIFY mouseSelectionModeChanged)
    Q_PROPERTY(bool canPaste READ canPaste NOTIFY canPasteChanged)
    Q_PROPERTY(bool canUndo READ canUndo NOTIFY canUndoChanged)
    Q_PROPERTY(bool canRedo READ canRedo NOTIFY canRedoChanged)
    Q_PROPERTY(bool inputMethodComposing READ isInputMethodComposing NOTIFY inputMethodComposingChanged)
    Q_PROPERTY(QUrl baseUrl READ baseUrl WRITE setBaseUrl RESET resetBaseUrl NOTIFY baseUrlChanged)

public:
    QQuickTextEdit(QQuickItem *parent=0);

    enum HAlignment {
        AlignLeft = Qt::AlignLeft,
        AlignRight = Qt::AlignRight,
        AlignHCenter = Qt::AlignHCenter,
        AlignJustify = Qt::AlignJustify
    };

    enum VAlignment {
        AlignTop = Qt::AlignTop,
        AlignBottom = Qt::AlignBottom,
        AlignVCenter = Qt::AlignVCenter
    };

    enum TextFormat {
        PlainText = Qt::PlainText,
        RichText = Qt::RichText,
        AutoText = Qt::AutoText
    };

    enum WrapMode { NoWrap = QTextOption::NoWrap,
                    WordWrap = QTextOption::WordWrap,
                    WrapAnywhere = QTextOption::WrapAnywhere,
                    WrapAtWordBoundaryOrAnywhere = QTextOption::WrapAtWordBoundaryOrAnywhere, // COMPAT
                    Wrap = QTextOption::WrapAtWordBoundaryOrAnywhere
                  };

    enum SelectionMode {
        SelectCharacters,
        SelectWords
    };

    Q_INVOKABLE void openSoftwareInputPanel();
    Q_INVOKABLE void closeSoftwareInputPanel();

    QString text() const;
    void setText(const QString &);

    TextFormat textFormat() const;
    void setTextFormat(TextFormat format);

    QFont font() const;
    void setFont(const QFont &font);

    QColor color() const;
    void setColor(const QColor &c);

    QColor selectionColor() const;
    void setSelectionColor(const QColor &c);

    QColor selectedTextColor() const;
    void setSelectedTextColor(const QColor &c);

    HAlignment hAlign() const;
    void setHAlign(HAlignment align);
    void resetHAlign();
    HAlignment effectiveHAlign() const;

    VAlignment vAlign() const;
    void setVAlign(VAlignment align);

    WrapMode wrapMode() const;
    void setWrapMode(WrapMode w);

    int lineCount() const;

    int length() const;

    bool isCursorVisible() const;
    void setCursorVisible(bool on);

    int cursorPosition() const;
    void setCursorPosition(int pos);

    QDeclarativeComponent* cursorDelegate() const;
    void setCursorDelegate(QDeclarativeComponent*);

    int selectionStart() const;
    int selectionEnd() const;

    QString selectedText() const;

    bool focusOnPress() const;
    void setFocusOnPress(bool on);

    bool persistentSelection() const;
    void setPersistentSelection(bool on);

    qreal textMargin() const;
    void setTextMargin(qreal margin);

    bool selectByMouse() const;
    void setSelectByMouse(bool);

    SelectionMode mouseSelectionMode() const;
    void setMouseSelectionMode(SelectionMode mode);

    bool canPaste() const;

    bool canUndo() const;
    bool canRedo() const;

    virtual void componentComplete();

    /* FROM EDIT */
    void setReadOnly(bool);
    bool isReadOnly() const;

    void setTextInteractionFlags(Qt::TextInteractionFlags flags);
    Qt::TextInteractionFlags textInteractionFlags() const;

    QRect cursorRectangle() const;

    QVariant inputMethodQuery(Qt::InputMethodQuery property) const;

    qreal contentWidth() const;
    qreal contentHeight() const;

    QUrl baseUrl() const;
    void setBaseUrl(const QUrl &url);
    void resetBaseUrl();

    Q_INVOKABLE QRectF positionToRectangle(int) const;
    Q_INVOKABLE int positionAt(int x, int y) const;
    Q_INVOKABLE void moveCursorSelection(int pos);
    Q_INVOKABLE void moveCursorSelection(int pos, SelectionMode mode);

    QRectF boundingRect() const;

    bool isInputMethodComposing() const;

    Q_INVOKABLE QString getText(int start, int end) const;
    Q_INVOKABLE QString getFormattedText(int start, int end) const;

Q_SIGNALS:
    void textChanged();
    void contentSizeChanged();
    void cursorPositionChanged();
    void cursorRectangleChanged();
    void selectionStartChanged();
    void selectionEndChanged();
    void selectionChanged();
    void colorChanged(const QColor &color);
    void selectionColorChanged(const QColor &color);
    void selectedTextColorChanged(const QColor &color);
    void fontChanged(const QFont &font);
    void horizontalAlignmentChanged(HAlignment alignment);
    void verticalAlignmentChanged(VAlignment alignment);
    void wrapModeChanged();
    void lineCountChanged();
    void textFormatChanged(TextFormat textFormat);
    void readOnlyChanged(bool isReadOnly);
    void cursorVisibleChanged(bool isCursorVisible);
    void cursorDelegateChanged();
    void activeFocusOnPressChanged(bool activeFocusOnPressed);
    void persistentSelectionChanged(bool isPersistentSelection);
    void textMarginChanged(qreal textMargin);
    void selectByMouseChanged(bool selectByMouse);
    void mouseSelectionModeChanged(SelectionMode mode);
    void linkActivated(const QString &link);
    void canPasteChanged();
    void canUndoChanged();
    void canRedoChanged();
    void inputMethodComposingChanged();
    void effectiveHorizontalAlignmentChanged();
    void baseUrlChanged();

public Q_SLOTS:
    void selectAll();
    void selectWord();
    void select(int start, int end);
    void deselect();
    bool isRightToLeft(int start, int end);
#ifndef QT_NO_CLIPBOARD
    void cut();
    void copy();
    void paste();
#endif
    void undo();
    void redo();
    void insert(int position, const QString &text);
    void remove(int start, int end);

private Q_SLOTS:
    void q_textChanged();
    void updateSelectionMarkers();
    void moveCursorDelegate();
    void loadCursorDelegate();
    void q_canPasteChanged();
    void updateDocument();
    void updateCursor();
    void q_updateAlignment();
    void updateSize();
    void triggerPreprocess();

private:
    void updateTotalLines();
    void updateImageCache(const QRectF &rect = QRectF());

protected:
    virtual void geometryChanged(const QRectF &newGeometry,
                                 const QRectF &oldGeometry);

    bool event(QEvent *);
    void keyPressEvent(QKeyEvent *);
    void keyReleaseEvent(QKeyEvent *);
    void focusInEvent(QFocusEvent *event);

    // mouse filter?
    void mousePressEvent(QMouseEvent *event);
    void mouseReleaseEvent(QMouseEvent *event);
    void mouseDoubleClickEvent(QMouseEvent *event);
    void mouseMoveEvent(QMouseEvent *event);
    void inputMethodEvent(QInputMethodEvent *e);
    virtual void itemChange(ItemChange, const ItemChangeData &);

    QSGNode *updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *updatePaintNodeData);

private:
    Q_DISABLE_COPY(QQuickTextEdit)
    Q_DECLARE_PRIVATE(QQuickTextEdit)
};

QT_END_NAMESPACE

QML_DECLARE_TYPE(QQuickTextEdit)

QT_END_HEADER

#endif // QQUICKTEXTEDIT_P_H