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tqtinterface/qtinterface/qt4/Qt/qplaintextedit.h

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/****************************************************************************
**
** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial Usage
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
** Alternatively, 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.
**
** 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.
**
** If you have questions regarding the use of this file, please contact
** Nokia at qt-info@nokia.com.
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QPLAINTEXTEDIT_H
#define QPLAINTEXTEDIT_H
#include <QtGui/qtextedit.h>
#include <QtGui/qabstractscrollarea.h>
#include <QtGui/qtextdocument.h>
#include <QtGui/qtextoption.h>
#include <QtGui/qtextcursor.h>
#include <QtGui/qtextformat.h>
#include <QtGui/qabstracttextdocumentlayout.h>
#ifndef QT_NO_TEXTEDIT
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
class QStyleSheet;
class QTextDocument;
class QMenu;
class QPlainTextEditPrivate;
class QMimeData;
class Q_GUI_EXPORT QPlainTextEdit : public QAbstractScrollArea
{
Q_OBJECT
Q_DECLARE_PRIVATE(QPlainTextEdit)
Q_ENUMS(LineWrapMode)
Q_PROPERTY(bool tabChangesFocus READ tabChangesFocus WRITE setTabChangesFocus)
Q_PROPERTY(QString documentTitle READ documentTitle WRITE setDocumentTitle)
Q_PROPERTY(bool undoRedoEnabled READ isUndoRedoEnabled WRITE setUndoRedoEnabled)
Q_PROPERTY(LineWrapMode lineWrapMode READ lineWrapMode WRITE setLineWrapMode)
QDOC_PROPERTY(QTextOption::WrapMode wordWrapMode READ wordWrapMode WRITE setWordWrapMode)
Q_PROPERTY(bool readOnly READ isReadOnly WRITE setReadOnly)
Q_PROPERTY(QString plainText READ toPlainText WRITE setPlainText NOTIFY textChanged USER true)
Q_PROPERTY(bool overwriteMode READ overwriteMode WRITE setOverwriteMode)
Q_PROPERTY(int tabStopWidth READ tabStopWidth WRITE setTabStopWidth)
Q_PROPERTY(int cursorWidth READ cursorWidth WRITE setCursorWidth)
Q_PROPERTY(Qt::TextInteractionFlags textInteractionFlags READ textInteractionFlags WRITE setTextInteractionFlags)
Q_PROPERTY(int blockCount READ blockCount)
Q_PROPERTY(int maximumBlockCount READ maximumBlockCount WRITE setMaximumBlockCount)
Q_PROPERTY(bool backgroundVisible READ backgroundVisible WRITE setBackgroundVisible)
Q_PROPERTY(bool centerOnScroll READ centerOnScroll WRITE setCenterOnScroll)
public:
enum LineWrapMode {
NoWrap,
WidgetWidth
};
explicit QPlainTextEdit(QWidget *parent = 0);
explicit QPlainTextEdit(const QString &text, QWidget *parent = 0);
virtual ~QPlainTextEdit();
void setDocument(QTextDocument *document);
QTextDocument *document() const;
void setTextCursor(const QTextCursor &cursor);
QTextCursor textCursor() const;
bool isReadOnly() const;
void setReadOnly(bool ro);
void setTextInteractionFlags(Qt::TextInteractionFlags flags);
Qt::TextInteractionFlags textInteractionFlags() const;
void mergeCurrentCharFormat(const QTextCharFormat &modifier);
void setCurrentCharFormat(const QTextCharFormat &format);
QTextCharFormat currentCharFormat() const;
bool tabChangesFocus() const;
void setTabChangesFocus(bool b);
inline void setDocumentTitle(const QString &title)
{ document()->setMetaInformation(QTextDocument::DocumentTitle, title); }
inline QString documentTitle() const
{ return document()->metaInformation(QTextDocument::DocumentTitle); }
inline bool isUndoRedoEnabled() const
{ return document()->isUndoRedoEnabled(); }
inline void setUndoRedoEnabled(bool enable)
{ document()->setUndoRedoEnabled(enable); }
inline void setMaximumBlockCount(int maximum)
{ document()->setMaximumBlockCount(maximum); }
inline int maximumBlockCount() const
{ return document()->maximumBlockCount(); }
LineWrapMode lineWrapMode() const;
void setLineWrapMode(LineWrapMode mode);
QTextOption::WrapMode wordWrapMode() const;
void setWordWrapMode(QTextOption::WrapMode policy);
void setBackgroundVisible(bool visible);
bool backgroundVisible() const;
void setCenterOnScroll(bool enabled);
bool centerOnScroll() const;
bool find(const QString &exp, QTextDocument::FindFlags options = 0);
inline QString toPlainText() const
{ return document()->toPlainText(); }
void ensureCursorVisible();
virtual QVariant loadResource(int type, const QUrl &name);
#ifndef QT_NO_CONTEXTMENU
QMenu *createStandardContextMenu();
#endif
QTextCursor cursorForPosition(const QPoint &pos) const;
QRect cursorRect(const QTextCursor &cursor) const;
QRect cursorRect() const;
bool overwriteMode() const;
void setOverwriteMode(bool overwrite);
int tabStopWidth() const;
void setTabStopWidth(int width);
int cursorWidth() const;
void setCursorWidth(int width);
void setExtraSelections(const QList<QTextEdit::ExtraSelection> &selections);
QList<QTextEdit::ExtraSelection> extraSelections() const;
void moveCursor(QTextCursor::MoveOperation operation, QTextCursor::MoveMode mode = QTextCursor::MoveAnchor);
bool canPaste() const;
#ifndef QT_NO_PRINTER
void print(QPrinter *printer) const;
#endif
int blockCount() const;
public Q_SLOTS:
void setPlainText(const QString &text);
#ifndef QT_NO_CLIPBOARD
void cut();
void copy();
void paste();
#endif
void undo();
void redo();
void clear();
void selectAll();
void insertPlainText(const QString &text);
void appendPlainText(const QString &text);
void appendHtml(const QString &html);
void centerCursor();
Q_SIGNALS:
void textChanged();
void undoAvailable(bool b);
void redoAvailable(bool b);
void copyAvailable(bool b);
void selectionChanged();
void cursorPositionChanged();
void updateRequest(const QRect &rect, int dy);
void blockCountChanged(int newBlockCount);
void modificationChanged(bool);
protected:
virtual bool event(QEvent *e);
virtual void timerEvent(QTimerEvent *e);
virtual void keyPressEvent(QKeyEvent *e);
virtual void keyReleaseEvent(QKeyEvent *e);
virtual void resizeEvent(QResizeEvent *e);
virtual void paintEvent(QPaintEvent *e);
virtual void mousePressEvent(QMouseEvent *e);
virtual void mouseMoveEvent(QMouseEvent *e);
virtual void mouseReleaseEvent(QMouseEvent *e);
virtual void mouseDoubleClickEvent(QMouseEvent *e);
virtual bool focusNextPrevChild(bool next);
#ifndef QT_NO_CONTEXTMENU
virtual void contextMenuEvent(QContextMenuEvent *e);
#endif
#ifndef QT_NO_DRAGANDDROP
virtual void dragEnterEvent(QDragEnterEvent *e);
virtual void dragLeaveEvent(QDragLeaveEvent *e);
virtual void dragMoveEvent(QDragMoveEvent *e);
virtual void dropEvent(QDropEvent *e);
#endif
virtual void focusInEvent(QFocusEvent *e);
virtual void focusOutEvent(QFocusEvent *e);
virtual void showEvent(QShowEvent *);
virtual void changeEvent(QEvent *e);
#ifndef QT_NO_WHEELEVENT
virtual void wheelEvent(QWheelEvent *e);
#endif
virtual QMimeData *createMimeDataFromSelection() const;
virtual bool canInsertFromMimeData(const QMimeData *source) const;
virtual void insertFromMimeData(const QMimeData *source);
virtual void inputMethodEvent(QInputMethodEvent *);
QVariant inputMethodQuery(Qt::InputMethodQuery property) const;
QPlainTextEdit(QPlainTextEditPrivate &dd, QWidget *parent);
virtual void scrollContentsBy(int dx, int dy);
QTextBlock firstVisibleBlock() const;
QPointF contentOffset() const;
QRectF blockBoundingRect(const QTextBlock &block) const;
QRectF blockBoundingGeometry(const QTextBlock &block) const;
QAbstractTextDocumentLayout::PaintContext getPaintContext() const;
private:
Q_DISABLE_COPY(QPlainTextEdit)
Q_PRIVATE_SLOT(d_func(), void _q_repaintContents(const QRectF &r))
Q_PRIVATE_SLOT(d_func(), void _q_adjustScrollbars())
Q_PRIVATE_SLOT(d_func(), void _q_verticalScrollbarActionTriggered(int))
Q_PRIVATE_SLOT(d_func(), void _q_cursorPositionChanged())
friend class QPlainTextEditControl;
};
class QPlainTextDocumentLayoutPrivate;
class Q_GUI_EXPORT QPlainTextDocumentLayout : public QAbstractTextDocumentLayout
{
Q_OBJECT
Q_DECLARE_PRIVATE(QPlainTextDocumentLayout)
Q_PROPERTY(int cursorWidth READ cursorWidth WRITE setCursorWidth)
public:
QPlainTextDocumentLayout(QTextDocument *document);
~QPlainTextDocumentLayout();
void draw(QPainter *, const PaintContext &);
int hitTest(const QPointF &, Qt::HitTestAccuracy ) const;
int pageCount() const;
QSizeF documentSize() const;
QRectF frameBoundingRect(QTextFrame *) const;
QRectF blockBoundingRect(const QTextBlock &block) const;
void ensureBlockLayout(const QTextBlock &block) const;
void setCursorWidth(int width);
int cursorWidth() const;
void requestUpdate();
protected:
void documentChanged(int from, int /*charsRemoved*/, int charsAdded);
private:
void setTextWidth(qreal newWidth);
qreal textWidth() const;
void layoutBlock(const QTextBlock &block);
qreal blockWidth(const QTextBlock &block);
QPlainTextDocumentLayoutPrivate *priv() const;
friend class QPlainTextEdit;
friend class QPlainTextEditPrivate;
};
QT_END_NAMESPACE
QT_END_HEADER
#endif // QT_NO_TEXTEDIT
#endif // QPLAINTEXTEDIT_H