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Diffstat (limited to 'src/widgets/widgets/qplaintextedit.h')
| -rw-r--r-- | src/widgets/widgets/qplaintextedit.h | 327 |
1 files changed, 327 insertions, 0 deletions
diff --git a/src/widgets/widgets/qplaintextedit.h b/src/widgets/widgets/qplaintextedit.h new file mode 100644 index 0000000000..d5fa71bbb7 --- /dev/null +++ b/src/widgets/widgets/qplaintextedit.h @@ -0,0 +1,327 @@ +/**************************************************************************** +** +** Copyright (C) 2011 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. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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. +** +** 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. +** +** Other Usage +** Alternatively, this file may be used in accordance with the terms and +** conditions contained in a signed written agreement between you and Nokia. +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QPLAINTEXTEDIT_H +#define QPLAINTEXTEDIT_H + +#include <QtWidgets/qtextedit.h> + +#include <QtWidgets/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 QPagedPaintDevice; + +class Q_WIDGETS_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; + + QString anchorAt(const QPoint &pos) 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; + + void print(QPagedPaintDevice *printer) const; + + 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_WIDGETS_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 |