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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QPLAINTEXTEDIT_H
#define QPLAINTEXTEDIT_H
#include <QtWidgets/qtwidgetsglobal.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>
QT_REQUIRE_CONFIG(textedit);
QT_BEGIN_NAMESPACE
class QStyleSheet;
class QTextDocument;
class QMenu;
class QPlainTextEditPrivate;
class QMimeData;
class QPagedPaintDevice;
class QRegularExpression;
class Q_WIDGETS_EXPORT QPlainTextEdit : public QAbstractScrollArea
{
Q_OBJECT
Q_DECLARE_PRIVATE(QPlainTextEdit)
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(qreal tabStopDistance READ tabStopDistance WRITE setTabStopDistance)
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)
Q_PROPERTY(QString placeholderText READ placeholderText WRITE setPlaceholderText)
public:
enum LineWrapMode {
NoWrap,
WidgetWidth
};
Q_ENUM(LineWrapMode)
explicit QPlainTextEdit(QWidget *parent = nullptr);
explicit QPlainTextEdit(const QString &text, QWidget *parent = nullptr);
virtual ~QPlainTextEdit();
void setDocument(QTextDocument *document);
QTextDocument *document() const;
void setPlaceholderText(const QString &placeholderText);
QString placeholderText() 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 = QTextDocument::FindFlags());
#if QT_CONFIG(regularexpression)
bool find(const QRegularExpression &exp, QTextDocument::FindFlags options = QTextDocument::FindFlags());
#endif
inline QString toPlainText() const
{ return document()->toPlainText(); }
void ensureCursorVisible();
virtual QVariant loadResource(int type, const QUrl &name);
#ifndef QT_NO_CONTEXTMENU
QMenu *createStandardContextMenu();
QMenu *createStandardContextMenu(const QPoint &position);
#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);
qreal tabStopDistance() const;
void setTabStopDistance(qreal distance);
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;
QVariant inputMethodQuery(Qt::InputMethodQuery property) const override;
Q_INVOKABLE QVariant inputMethodQuery(Qt::InputMethodQuery query, QVariant argument) 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();
void zoomIn(int range = 1);
void zoomOut(int range = 1);
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) override;
virtual void timerEvent(QTimerEvent *e) override;
virtual void keyPressEvent(QKeyEvent *e) override;
virtual void keyReleaseEvent(QKeyEvent *e) override;
virtual void resizeEvent(QResizeEvent *e) override;
virtual void paintEvent(QPaintEvent *e) override;
virtual void mousePressEvent(QMouseEvent *e) override;
virtual void mouseMoveEvent(QMouseEvent *e) override;
virtual void mouseReleaseEvent(QMouseEvent *e) override;
virtual void mouseDoubleClickEvent(QMouseEvent *e) override;
virtual bool focusNextPrevChild(bool next) override;
#ifndef QT_NO_CONTEXTMENU
virtual void contextMenuEvent(QContextMenuEvent *e) override;
#endif
#if QT_CONFIG(draganddrop)
virtual void dragEnterEvent(QDragEnterEvent *e) override;
virtual void dragLeaveEvent(QDragLeaveEvent *e) override;
virtual void dragMoveEvent(QDragMoveEvent *e) override;
virtual void dropEvent(QDropEvent *e) override;
#endif
virtual void focusInEvent(QFocusEvent *e) override;
virtual void focusOutEvent(QFocusEvent *e) override;
virtual void showEvent(QShowEvent *) override;
virtual void changeEvent(QEvent *e) override;
#if QT_CONFIG(wheelevent)
virtual void wheelEvent(QWheelEvent *e) override;
#endif
virtual QMimeData *createMimeDataFromSelection() const;
virtual bool canInsertFromMimeData(const QMimeData *source) const;
virtual void insertFromMimeData(const QMimeData *source);
virtual void inputMethodEvent(QInputMethodEvent *) override;
QPlainTextEdit(QPlainTextEditPrivate &dd, QWidget *parent);
virtual void scrollContentsBy(int dx, int dy) override;
virtual void doSetTextCursor(const QTextCursor &cursor);
QTextBlock firstVisibleBlock() const;
QPointF contentOffset() const;
QRectF blockBoundingRect(const QTextBlock &block) const;
QRectF blockBoundingGeometry(const QTextBlock &block) const;
QAbstractTextDocumentLayout::PaintContext getPaintContext() const;
void zoomInF(float range);
private:
Q_DISABLE_COPY(QPlainTextEdit)
Q_PRIVATE_SLOT(d_func(), void _q_repaintContents(const QRectF &r))
Q_PRIVATE_SLOT(d_func(), void _q_updatePlaceholderVisibility())
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 &) override;
int hitTest(const QPointF &, Qt::HitTestAccuracy ) const override;
int pageCount() const override;
QSizeF documentSize() const override;
QRectF frameBoundingRect(QTextFrame *) const override;
QRectF blockBoundingRect(const QTextBlock &block) const override;
void ensureBlockLayout(const QTextBlock &block) const;
void setCursorWidth(int width);
int cursorWidth() const;
void requestUpdate();
protected:
void documentChanged(int from, int /*charsRemoved*/, int charsAdded) override;
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
#endif // QPLAINTEXTEDIT_H
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