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Qt 4.8
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Qt 4.8
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The QPlainTextEdit class provides a widget that is used to edit and display plain text. More...
#include <qplaintextedit.h>
Public Types | |
| enum | LineWrapMode { NoWrap, WidgetWidth } |
 Public Types inherited from QFrame | |
| enum | Shadow { Plain = 0x0010, Raised = 0x0020, Sunken = 0x0030 } |
| This enum type defines the types of shadow that are used to give a 3D effect to frames. More... | |
| enum | Shape { NoFrame = 0, Box = 0x0001, Panel = 0x0002, WinPanel = 0x0003, HLine = 0x0004, VLine = 0x0005, StyledPanel = 0x0006 } |
| This enum type defines the shapes of frame available. More... | |
| enum | StyleMask { Shadow_Mask = 0x00f0, Shape_Mask = 0x000f } |
| This enum defines two constants that can be used to extract the two components of frameStyle(): More... | |
| Public Types inherited from QWidget | |
| enum | RenderFlag { DrawWindowBackground = 0x1, DrawChildren = 0x2, IgnoreMask = 0x4 } |
| This enum describes how to render the widget when calling QWidget::render(). More... | |
| Public Types inherited from QPaintDevice | |
| enum | PaintDeviceMetric { PdmWidth = 1, PdmHeight, PdmWidthMM, PdmHeightMM, PdmNumColors, PdmDepth, PdmDpiX, PdmDpiY, PdmPhysicalDpiX, PdmPhysicalDpiY } |
Public Slots | |
| void | appendHtml (const QString &html) |
| Appends a new paragraph with html to the end of the text edit. More... | |
| void | appendPlainText (const QString &text) |
| Appends a new paragraph with text to the end of the text edit. More... | |
| void | centerCursor () |
| Scrolls the document in order to center the cursor vertically. More... | |
| void | clear () |
| Deletes all the text in the text edit. More... | |
| void | copy () |
| Copies any selected text to the clipboard. More... | |
| void | cut () |
| Copies the selected text to the clipboard and deletes it from the text edit. More... | |
| void | insertPlainText (const QString &text) |
| Convenience slot that inserts text at the current cursor position. More... | |
| void | paste () |
| Pastes the text from the clipboard into the text edit at the current cursor position. More... | |
| void | redo () |
| Redoes the last operation. More... | |
| void | selectAll () |
| Selects all text. More... | |
| void | setPlainText (const QString &text) |
| Changes the text of the text edit to the string text. More... | |
| void | undo () |
| Undoes the last operation. More... | |
| Public Slots inherited from QWidget | |
| bool | close () |
| Closes this widget. More... | |
| void | hide () |
| Hides the widget. More... | |
| void | lower () |
| Lowers the widget to the bottom of the parent widget's stack. More... | |
| void | raise () |
| Raises this widget to the top of the parent widget's stack. More... | |
| void | repaint () |
| Repaints the widget directly by calling paintEvent() immediately, unless updates are disabled or the widget is hidden. More... | |
| void | setDisabled (bool) |
| Disables widget input events if disable is true; otherwise enables input events. More... | |
| void | setEnabled (bool) |
| void | setFocus () |
| Gives the keyboard input focus to this widget (or its focus proxy) if this widget or one of its parents is the active window. More... | |
| void | setHidden (bool hidden) |
| Convenience function, equivalent to setVisible(!hidden). More... | |
| QT_MOC_COMPAT void | setShown (bool shown) |
| Use setVisible(shown) instead. More... | |
| void | setStyleSheet (const QString &styleSheet) |
| virtual void | setVisible (bool visible) |
| void | setWindowModified (bool) |
| void | setWindowTitle (const QString &) |
| void | show () |
| Shows the widget and its child widgets. More... | |
| void | showFullScreen () |
| Shows the widget in full-screen mode. More... | |
| void | showMaximized () |
| Shows the widget maximized. More... | |
| void | showMinimized () |
| Shows the widget minimized, as an icon. More... | |
| void | showNormal () |
| Restores the widget after it has been maximized or minimized. More... | |
| void | update () |
| Updates the widget unless updates are disabled or the widget is hidden. More... | |
| Public Slots inherited from QObject | |
| void | deleteLater () |
| Schedules this object for deletion. More... | |
Signals | |
| void | blockCountChanged (int newBlockCount) |
| This signal is emitted whenever the block count changes. More... | |
| void | copyAvailable (bool b) |
| This signal is emitted when text is selected or de-selected in the text edit. More... | |
| void | cursorPositionChanged () |
| This signal is emitted whenever the position of the cursor changed. More... | |
| void | modificationChanged (bool) |
| This signal is emitted whenever the content of the document changes in a way that affects the modification state. More... | |
| void | redoAvailable (bool b) |
| This signal is emitted whenever redo operations become available (available is true) or unavailable (available is false). More... | |
| void | selectionChanged () |
| This signal is emitted whenever the selection changes. More... | |
| void | textChanged () |
| This signal is emitted whenever the document's content changes; for example, when text is inserted or deleted, or when formatting is applied. More... | |
| void | undoAvailable (bool b) |
| This signal is emitted whenever undo operations become available (available is true) or unavailable (available is false). More... | |
| void | updateRequest (const QRect &rect, int dy) |
| This signal is emitted when the text document needs an update of the specified rect. More... | |
| Signals inherited from QWidget | |
| void | customContextMenuRequested (const QPoint &pos) |
| This signal is emitted when the widget's contextMenuPolicy is Qt::CustomContextMenu, and the user has requested a context menu on the widget. More... | |
| Signals inherited from QObject | |
| void | destroyed (QObject *=0) |
| This signal is emitted immediately before the object obj is destroyed, and can not be blocked. More... | |
Public Functions | |
| QString | anchorAt (const QPoint &pos) const |
| Returns the reference of the anchor at position pos, or an empty string if no anchor exists at that point. More... | |
| bool | backgroundVisible () const |
| int | blockCount () const |
| bool | canPaste () const |
| Returns whether text can be pasted from the clipboard into the textedit. More... | |
| bool | centerOnScroll () const |
| QMenu * | createStandardContextMenu () |
| This function creates the standard context menu which is shown when the user clicks on the line edit with the right mouse button. More... | |
| QTextCharFormat | currentCharFormat () const |
| Returns the char format that is used when inserting new text. More... | |
| QTextCursor | cursorForPosition (const QPoint &pos) const |
| returns a QTextCursor at position pos (in viewport coordinates). More... | |
| QRect | cursorRect (const QTextCursor &cursor) const |
| returns a rectangle (in viewport coordinates) that includes the cursor. More... | |
| QRect | cursorRect () const |
| returns a rectangle (in viewport coordinates) that includes the cursor of the text edit. More... | |
| int | cursorWidth () const |
| QTextDocument * | document () const |
| Returns a pointer to the underlying document. More... | |
| QString | documentTitle () const |
| void | ensureCursorVisible () |
| Ensures that the cursor is visible by scrolling the text edit if necessary. More... | |
| QList< QTextEdit::ExtraSelection > | extraSelections () const |
| Returns previously set extra selections. More... | |
| bool | find (const QString &exp, QTextDocument::FindFlags options=0) |
| Finds the next occurrence of the string, exp, using the given options. More... | |
| bool | isReadOnly () const |
| bool | isUndoRedoEnabled () const |
| LineWrapMode | lineWrapMode () const |
| virtual QVariant | loadResource (int type, const QUrl &name) |
| Loads the resource specified by the given type and name. More... | |
| int | maximumBlockCount () const |
| void | mergeCurrentCharFormat (const QTextCharFormat &modifier) |
| Merges the properties specified in modifier into the current character format by calling QTextCursor::mergeCharFormat on the editor's cursor. More... | |
| void | moveCursor (QTextCursor::MoveOperation operation, QTextCursor::MoveMode mode=QTextCursor::MoveAnchor) |
| Moves the cursor by performing the given operation. More... | |
| bool | overwriteMode () const |
| void | print (QPrinter *printer) const |
| Convenience function to print the text edit's document to the given printer. More... | |
| QPlainTextEdit (QWidget *parent=0) | |
| Constructs an empty QPlainTextEdit with parent parent. More... | |
| QPlainTextEdit (const QString &text, QWidget *parent=0) | |
| Constructs a QPlainTextEdit with parent parent. More... | |
| void | setBackgroundVisible (bool visible) |
| void | setCenterOnScroll (bool enabled) |
| void | setCurrentCharFormat (const QTextCharFormat &format) |
| Sets the char format that is be used when inserting new text to format by calling QTextCursor::setCharFormat() on the editor's cursor. More... | |
| void | setCursorWidth (int width) |
| void | setDocument (QTextDocument *document) |
| Makes document the new document of the text editor. More... | |
| void | setDocumentTitle (const QString &title) |
| void | setExtraSelections (const QList< QTextEdit::ExtraSelection > &selections) |
| This function allows temporarily marking certain regions in the document with a given color, specified as selections. More... | |
| void | setLineWrapMode (LineWrapMode mode) |
| void | setMaximumBlockCount (int maximum) |
| void | setOverwriteMode (bool overwrite) |
| void | setReadOnly (bool ro) |
| void | setTabChangesFocus (bool b) |
| void | setTabStopWidth (int width) |
| void | setTextCursor (const QTextCursor &cursor) |
| Sets the visible cursor. More... | |
| void | setTextInteractionFlags (Qt::TextInteractionFlags flags) |
| void | setUndoRedoEnabled (bool enable) |
| void | setWordWrapMode (QTextOption::WrapMode policy) |
| bool | tabChangesFocus () const |
| int | tabStopWidth () const |
| QTextCursor | textCursor () const |
| Returns a copy of the QTextCursor that represents the currently visible cursor. More... | |
| Qt::TextInteractionFlags | textInteractionFlags () const |
| QString | toPlainText () const |
| Returns the text of the text edit as plain text. More... | |
| QTextOption::WrapMode | wordWrapMode () const |
| the mode QPlainTextEdit will use when wrapping text by words More... | |
| virtual | ~QPlainTextEdit () |
| Destructor. More... | |
| Public Functions inherited from QAbstractScrollArea | |
| void | addScrollBarWidget (QWidget *widget, Qt::Alignment alignment) |
| Adds widget as a scroll bar widget in the location specified by alignment. More... | |
| QWidget * | cornerWidget () const |
| Returns the widget in the corner between the two scroll bars. More... | |
| QScrollBar * | horizontalScrollBar () const |
| Returns the horizontal scroll bar. More... | |
| Qt::ScrollBarPolicy | horizontalScrollBarPolicy () const |
| QSize | maximumViewportSize () const |
| Returns the size of the viewport as if the scroll bars had no valid scrolling range. More... | |
| QSize | minimumSizeHint () const |
| Reimplemented Function More... | |
| QAbstractScrollArea (QWidget *parent=0) | |
| Constructs a viewport. More... | |
| QWidgetList | scrollBarWidgets (Qt::Alignment alignment) |
| Returns a list of the currently set scroll bar widgets. More... | |
| void | setCornerWidget (QWidget *widget) |
| Sets the widget in the corner between the two scroll bars to be widget. More... | |
| void | setHorizontalScrollBar (QScrollBar *scrollbar) |
| Replaces the existing horizontal scroll bar with scrollBar, and sets all the former scroll bar's slider properties on the new scroll bar. More... | |
| void | setHorizontalScrollBarPolicy (Qt::ScrollBarPolicy) |
| void | setVerticalScrollBar (QScrollBar *scrollbar) |
| Replaces the existing vertical scroll bar with scrollBar, and sets all the former scroll bar's slider properties on the new scroll bar. More... | |
| void | setVerticalScrollBarPolicy (Qt::ScrollBarPolicy) |
| void | setViewport (QWidget *widget) |
| Sets the viewport to be the given widget. More... | |
| QSize | sizeHint () const |
| Reimplemented Function More... | |
| QScrollBar * | verticalScrollBar () const |
| Returns the vertical scroll bar. More... | |
| Qt::ScrollBarPolicy | verticalScrollBarPolicy () const |
| QWidget * | viewport () const |
| Returns the viewport widget. More... | |
| ~QAbstractScrollArea () | |
| Destroys the viewport. More... | |
| Public Functions inherited from QFrame | |
| QRect | frameRect () const |
| Shadow | frameShadow () const |
| Shape | frameShape () const |
| int | frameStyle () const |
| Returns the frame style. More... | |
| int | frameWidth () const |
| int | lineWidth () const |
| int | midLineWidth () const |
| QFrame (QWidget *parent=0, Qt::WindowFlags f=0) | |
| Constructs a frame widget with frame style NoFrame and a 1-pixel frame width. More... | |
| void | setFrameRect (const QRect &) |
| em>Reimplemented Function More... | |
| void | setFrameShadow (Shadow) |
| void | setFrameShape (Shape) |
| void | setFrameStyle (int) |
| Sets the frame style to style. More... | |
| void | setLineWidth (int) |
| void | setMidLineWidth (int) |
| QSize | sizeHint () const |
| em>Reimplemented Function More... | |
| ~QFrame () | |
| Destroys the frame. More... | |
| Public Functions inherited from QWidget | |
| bool | acceptDrops () const |
| QString | accessibleDescription () const |
| QString | accessibleName () const |
| QList< QAction * > | actions () const |
| Returns the (possibly empty) list of this widget's actions. More... | |
| void | activateWindow () |
| Sets the top-level widget containing this widget to be the active window. More... | |
| void | addAction (QAction *action) |
| Appends the action action to this widget's list of actions. More... | |
| void | addActions (QList< QAction *> actions) |
| Appends the actions actions to this widget's list of actions. More... | |
| void | adjustSize () |
| Adjusts the size of the widget to fit its contents. More... | |
| bool | autoFillBackground () const |
| QPalette::ColorRole | backgroundRole () const |
| Returns the background role of the widget. More... | |
| QSize | baseSize () const |
| QWidget * | childAt (int x, int y) const |
| Returns the visible child widget at the position ({x}, {y}) in the widget's coordinate system. More... | |
| QWidget * | childAt (const QPoint &p) const |
| Returns the visible child widget at point p in the widget's own coordinate system. More... | |
| QRect | childrenRect () const |
| QRegion | childrenRegion () const |
| void | clearFocus () |
| Takes keyboard input focus from the widget. More... | |
| void | clearMask () |
| Removes any mask set by setMask(). More... | |
| QMargins | contentsMargins () const |
| The contentsMargins function returns the widget's contents margins. More... | |
| QRect | contentsRect () const |
| Returns the area inside the widget's margins. More... | |
| Qt::ContextMenuPolicy | contextMenuPolicy () const |
| void | createWinId () |
| QCursor | cursor () const |
| int | devType () const |
| WId | effectiveWinId () const |
| Returns the effective window system identifier of the widget, i. More... | |
| void | ensurePolished () const |
| Ensures that the widget has been polished by QStyle (i.e., has a proper font and palette). More... | |
| Qt::FocusPolicy | focusPolicy () const |
| QWidget * | focusProxy () const |
| Returns the focus proxy, or 0 if there is no focus proxy. More... | |
| QWidget * | focusWidget () const |
| Returns the last child of this widget that setFocus had been called on. More... | |
| const QFont & | font () const |
| QFontInfo | fontInfo () const |
| Returns the font info for the widget's current font. More... | |
| QFontMetrics | fontMetrics () const |
| Returns the font metrics for the widget's current font. More... | |
| QPalette::ColorRole | foregroundRole () const |
| Returns the foreground role. More... | |
| QRect | frameGeometry () const |
| QSize | frameSize () const |
| const QRect & | geometry () const |
| void | getContentsMargins (int *left, int *top, int *right, int *bottom) const |
| Returns the widget's contents margins for left, top, right, and bottom. More... | |
| HDC | getDC () const |
| Returns the window system handle of the widget, for low-level access. More... | |
| void | grabGesture (Qt::GestureType type, Qt::GestureFlags flags=Qt::GestureFlags()) |
| Subscribes the widget to a given gesture with specific flags. More... | |
| void | grabKeyboard () |
| Grabs the keyboard input. More... | |
| void | grabMouse () |
| Grabs the mouse input. More... | |
| void | grabMouse (const QCursor &) |
| int | grabShortcut (const QKeySequence &key, Qt::ShortcutContext context=Qt::WindowShortcut) |
| Adds a shortcut to Qt's shortcut system that watches for the given key sequence in the given context. More... | |
| QGraphicsEffect * | graphicsEffect () const |
| The graphicsEffect function returns a pointer to the widget's graphics effect. More... | |
| QGraphicsProxyWidget * | graphicsProxyWidget () const |
| Returns the proxy widget for the corresponding embedded widget in a graphics view; otherwise returns 0. More... | |
| bool | hasFocus () const |
| bool | hasMouseTracking () const |
| int | height () const |
| virtual int | heightForWidth (int) const |
| Returns the preferred height for this widget, given the width w. More... | |
| QInputContext * | inputContext () |
| This function returns the QInputContext for this widget. More... | |
| Qt::InputMethodHints | inputMethodHints () const |
| void | insertAction (QAction *before, QAction *action) |
| Inserts the action action to this widget's list of actions, before the action before. More... | |
| void | insertActions (QAction *before, QList< QAction *> actions) |
| Inserts the actions actions to this widget's list of actions, before the action before. More... | |
| WId | internalWinId () const |
| Returns the window system identifier of the widget, or 0 if the widget is not created yet. More... | |
| bool | isActiveWindow () const |
| bool | isAncestorOf (const QWidget *child) const |
| Returns true if this widget is a parent, (or grandparent and so on to any level), of the given child, and both widgets are within the same window; otherwise returns false. More... | |
| bool | isEnabled () const |
| bool | isEnabledTo (QWidget *) const |
| Returns true if this widget would become enabled if ancestor is enabled; otherwise returns false. More... | |
| bool | isEnabledToTLW () const |
| This function is deprecated. More... | |
| bool | isFullScreen () const |
| bool | isHidden () const |
| Returns true if the widget is hidden, otherwise returns false. More... | |
| bool | isLeftToRight () const |
| bool | isMaximized () const |
| bool | isMinimized () const |
| bool | isModal () const |
| bool | isRightToLeft () const |
| bool | isTopLevel () const |
| Use isWindow() instead. More... | |
| bool | isVisible () const |
| bool | isVisibleTo (QWidget *) const |
| Returns true if this widget would become visible if ancestor is shown; otherwise returns false. More... | |
| bool | isWindow () const |
| Returns true if the widget is an independent window, otherwise returns false. More... | |
| bool | isWindowModified () const |
| QLayout * | layout () const |
| Returns the layout manager that is installed on this widget, or 0 if no layout manager is installed. More... | |
| Qt::LayoutDirection | layoutDirection () const |
| QLocale | locale () const |
| Qt::HANDLE | macCGHandle () const |
| Returns the CoreGraphics handle of the widget. More... | |
| Qt::HANDLE | macQDHandle () const |
| Returns the QuickDraw handle of the widget. More... | |
| QPoint | mapFrom (QWidget *, const QPoint &) const |
| Translates the widget coordinate pos from the coordinate system of parent to this widget's coordinate system. More... | |
| QPoint | mapFromGlobal (const QPoint &) const |
| Translates the global screen coordinate pos to widget coordinates. More... | |
| QPoint | mapFromParent (const QPoint &) const |
| Translates the parent widget coordinate pos to widget coordinates. More... | |
| QPoint | mapTo (QWidget *, const QPoint &) const |
| Translates the widget coordinate pos to the coordinate system of parent. More... | |
| QPoint | mapToGlobal (const QPoint &) const |
| Translates the widget coordinate pos to global screen coordinates. More... | |
| QPoint | mapToParent (const QPoint &) const |
| Translates the widget coordinate pos to a coordinate in the parent widget. More... | |
| QRegion | mask () const |
| Returns the mask currently set on a widget. More... | |
| int | maximumHeight () const |
| QSize | maximumSize () const |
| int | maximumWidth () const |
| int | minimumHeight () const |
| QSize | minimumSize () const |
| int | minimumWidth () const |
| void | move (int x, int y) |
| This corresponds to move(QPoint(x, y)). More... | |
| void | move (const QPoint &) |
| QWidget * | nativeParentWidget () const |
| Returns the native parent for this widget, i. More... | |
| QWidget * | nextInFocusChain () const |
| Returns the next widget in this widget's focus chain. More... | |
| QRect | normalGeometry () const |
| void | overrideWindowFlags (Qt::WindowFlags type) |
| Sets the window flags for the widget to flags, without telling the window system. More... | |
| void | overrideWindowState (Qt::WindowStates state) |
| QPaintEngine * | paintEngine () const |
| Returns the widget's paint engine. More... | |
| const QPalette & | palette () const |
| QWidget * | parentWidget () const |
| Returns the parent of this widget, or 0 if it does not have any parent widget. More... | |
| QPoint | pos () const |
| QWidget * | previousInFocusChain () const |
| The previousInFocusChain function returns the previous widget in this widget's focus chain. More... | |
| QWidget (QWidget *parent=0, Qt::WindowFlags f=0) | |
| Constructs a widget which is a child of parent, with widget flags set to f. More... | |
| QRect | rect () const |
| void | releaseDC (HDC) const |
| Releases the HDC hdc acquired by a previous call to getDC(). More... | |
| void | releaseKeyboard () |
| Releases the keyboard grab. More... | |
| void | releaseMouse () |
| Releases the mouse grab. More... | |
| void | releaseShortcut (int id) |
| Removes the shortcut with the given id from Qt's shortcut system. More... | |
| void | removeAction (QAction *action) |
| Removes the action action from this widget's list of actions. More... | |
| void | render (QPaintDevice *target, const QPoint &targetOffset=QPoint(), const QRegion &sourceRegion=QRegion(), RenderFlags renderFlags=RenderFlags(DrawWindowBackground|DrawChildren)) |
| Renders the sourceRegion of this widget into the target using renderFlags to determine how to render. More... | |
| void | render (QPainter *painter, const QPoint &targetOffset=QPoint(), const QRegion &sourceRegion=QRegion(), RenderFlags renderFlags=RenderFlags(DrawWindowBackground|DrawChildren)) |
| Renders the widget into the painter's QPainter::device(). More... | |
| void | repaint (int x, int y, int w, int h) |
| This version repaints a rectangle (x, y, w, h) inside the widget. More... | |
| void | repaint (const QRect &) |
| This version repaints a rectangle rect inside the widget. More... | |
| void | repaint (const QRegion &) |
| This version repaints a region rgn inside the widget. More... | |
| void | resize (int w, int h) |
| This corresponds to resize(QSize(w, h)). More... | |
| void | resize (const QSize &) |
| bool | restoreGeometry (const QByteArray &geometry) |
| Restores the geometry and state top-level widgets stored in the byte array geometry. More... | |
| QByteArray | saveGeometry () const |
| Saves the current geometry and state for top-level widgets. More... | |
| void | scroll (int dx, int dy) |
| Scrolls the widget including its children dx pixels to the right and dy downward. More... | |
| void | scroll (int dx, int dy, const QRect &) |
| This version only scrolls r and does not move the children of the widget. More... | |
| void | setAcceptDrops (bool on) |
| void | setAccessibleDescription (const QString &description) |
| void | setAccessibleName (const QString &name) |
| void | setAttribute (Qt::WidgetAttribute, bool on=true) |
| Sets the attribute attribute on this widget if on is true; otherwise clears the attribute. More... | |
| void | setAutoFillBackground (bool enabled) |
| void | setBackgroundRole (QPalette::ColorRole) |
| Sets the background role of the widget to role. More... | |
| void | setBaseSize (const QSize &) |
| void | setBaseSize (int basew, int baseh) |
| This corresponds to setBaseSize(QSize(basew, baseh)). More... | |
| void | setContentsMargins (int left, int top, int right, int bottom) |
| Sets the margins around the contents of the widget to have the sizes left, top, right, and bottom. More... | |
| void | setContentsMargins (const QMargins &margins) |
| The setContentsMargins function sets the margins around the widget's contents. More... | |
| void | setContextMenuPolicy (Qt::ContextMenuPolicy policy) |
| void | setCursor (const QCursor &) |
| void | setFixedHeight (int h) |
| Sets both the minimum and maximum heights of the widget to h without changing the widths. More... | |
| void | setFixedSize (const QSize &) |
| Sets both the minimum and maximum sizes of the widget to s, thereby preventing it from ever growing or shrinking. More... | |
| void | setFixedSize (int w, int h) |
| Sets the width of the widget to w and the height to h. More... | |
| void | setFixedWidth (int w) |
| Sets both the minimum and maximum width of the widget to w without changing the heights. More... | |
| void | setFocus (Qt::FocusReason reason) |
| Gives the keyboard input focus to this widget (or its focus proxy) if this widget or one of its parents is the active window. More... | |
| void | setFocusPolicy (Qt::FocusPolicy policy) |
| void | setFocusProxy (QWidget *) |
| Sets the widget's focus proxy to widget w. More... | |
| void | setFont (const QFont &) |
| Use the single-argument overload instead. More... | |
| void | setForegroundRole (QPalette::ColorRole) |
| Sets the foreground role of the widget to role. More... | |
| void | setGeometry (int x, int y, int w, int h) |
| This is an overloaded member function, provided for convenience. It differs from the above function only in what argument(s) it accepts.This corresponds to setGeometry(QRect(x, y, w, h)). More... | |
| void | setGeometry (const QRect &) |
| void | setGraphicsEffect (QGraphicsEffect *effect) |
| The setGraphicsEffect function is for setting the widget's graphics effect. More... | |
| void | setInputContext (QInputContext *) |
| This function sets the input context context on this widget. More... | |
| void | setInputMethodHints (Qt::InputMethodHints hints) |
| void | setLayout (QLayout *) |
| Sets the layout manager for this widget to layout. More... | |
| void | setLayoutDirection (Qt::LayoutDirection direction) |
| void | setLocale (const QLocale &locale) |
| void | setMask (const QBitmap &) |
| Causes only the pixels of the widget for which bitmap has a corresponding 1 bit to be visible. More... | |
| void | setMask (const QRegion &) |
| Causes only the parts of the widget which overlap region to be visible. More... | |
| void | setMaximumHeight (int maxh) |
| void | setMaximumSize (const QSize &) |
| void | setMaximumSize (int maxw, int maxh) |
| This function corresponds to setMaximumSize(QSize(maxw, maxh)). More... | |
| void | setMaximumWidth (int maxw) |
| void | setMinimumHeight (int minh) |
| void | setMinimumSize (const QSize &) |
| void | setMinimumSize (int minw, int minh) |
| This function corresponds to setMinimumSize(QSize(minw, minh)). More... | |
| void | setMinimumWidth (int minw) |
| void | setMouseTracking (bool enable) |
| void | setPalette (const QPalette &) |
| Use the single-argument overload instead. More... | |
| void | setParent (QWidget *parent) |
| Sets the parent of the widget to parent, and resets the window flags. More... | |
| void | setParent (QWidget *parent, Qt::WindowFlags f) |
| This function also takes widget flags, f as an argument. More... | |
| void | setShortcutAutoRepeat (int id, bool enable=true) |
| If enable is true, auto repeat of the shortcut with the given id is enabled; otherwise it is disabled. More... | |
| void | setShortcutEnabled (int id, bool enable=true) |
| If enable is true, the shortcut with the given id is enabled; otherwise the shortcut is disabled. More... | |
| void | setSizeIncrement (const QSize &) |
| void | setSizeIncrement (int w, int h) |
| Sets the x (width) size increment to w and the y (height) size increment to h. More... | |
| void | setSizePolicy (QSizePolicy) |
| void | setSizePolicy (QSizePolicy::Policy horizontal, QSizePolicy::Policy vertical) |
| Sets the size policy of the widget to horizontal and vertical, with standard stretch and no height-for-width. More... | |
| void | setStatusTip (const QString &) |
| void | setStyle (QStyle *) |
| Sets the widget's GUI style to style. More... | |
| void | setToolTip (const QString &) |
| void | setUpdatesEnabled (bool enable) |
| void | setupUi (QWidget *widget) |
| Sets up the user interface for the specified widget. More... | |
| void | setWhatsThis (const QString &) |
| void | setWindowFilePath (const QString &filePath) |
| void | setWindowFlags (Qt::WindowFlags type) |
| void | setWindowIcon (const QIcon &icon) |
| void | setWindowIconText (const QString &) |
| void | setWindowModality (Qt::WindowModality windowModality) |
| void | setWindowOpacity (qreal level) |
| void | setWindowRole (const QString &) |
| Sets the window's role to role. More... | |
| void | setWindowState (Qt::WindowStates state) |
| Sets the window state to windowState. More... | |
| void | setWindowSurface (QWindowSurface *surface) |
| Sets the window surface to be the surface specified. More... | |
| QSize | size () const |
| QSize | sizeIncrement () const |
| QSizePolicy | sizePolicy () const |
| void | stackUnder (QWidget *) |
| Places the widget under w in the parent widget's stack. More... | |
| QString | statusTip () const |
| QStyle * | style () const |
| QString | styleSheet () const |
| bool | testAttribute (Qt::WidgetAttribute) const |
| Returns true if attribute attribute is set on this widget; otherwise returns false. More... | |
| QString | toolTip () const |
| QWidget * | topLevelWidget () const |
| bool | underMouse () const |
| Returns true if the widget is under the mouse cursor; otherwise returns false. More... | |
| void | ungrabGesture (Qt::GestureType type) |
| Unsubscribes the widget from a given gesture type. More... | |
| void | unsetCursor () |
| void | unsetLayoutDirection () |
| void | unsetLocale () |
| void | update (int x, int y, int w, int h) |
| This version updates a rectangle (x, y, w, h) inside the widget. More... | |
| void | update (const QRect &) |
| This version updates a rectangle rect inside the widget. More... | |
| void | update (const QRegion &) |
| This version repaints a region rgn inside the widget. More... | |
| void | updateGeometry () |
| Notifies the layout system that this widget has changed and may need to change geometry. More... | |
| bool | updatesEnabled () const |
| QRegion | visibleRegion () const |
| Returns the unobscured region where paint events can occur. More... | |
| QString | whatsThis () const |
| int | width () const |
| QWidget * | window () const |
| Returns the window for this widget, i.e. More... | |
| QString | windowFilePath () const |
| Qt::WindowFlags | windowFlags () const |
| Window flags are a combination of a type (e. More... | |
| QIcon | windowIcon () const |
| QString | windowIconText () const |
| Qt::WindowModality | windowModality () const |
| qreal | windowOpacity () const |
| QString | windowRole () const |
| Returns the window's role, or an empty string. More... | |
| Qt::WindowStates | windowState () const |
| Returns the current window state. More... | |
| QWindowSurface * | windowSurface () const |
| Returns the QWindowSurface this widget will be drawn into. More... | |
| QString | windowTitle () const |
| Qt::WindowType | windowType () const |
| Returns the window type of this widget. More... | |
| WId | winId () const |
| Returns the window system identifier of the widget. More... | |
| int | x () const |
| const QX11Info & | x11Info () const |
| Returns information about the configuration of the X display used to display the widget. More... | |
| Qt::HANDLE | x11PictureHandle () const |
| Returns the X11 Picture handle of the widget for XRender support. More... | |
| int | y () const |
| ~QWidget () | |
| Destroys the widget. More... | |
| Public Functions inherited from QObject | |
| bool | blockSignals (bool b) |
| If block is true, signals emitted by this object are blocked (i.e., emitting a signal will not invoke anything connected to it). More... | |
| const QObjectList & | children () const |
| Returns a list of child objects. More... | |
| bool | connect (const QObject *sender, const char *signal, const char *member, Qt::ConnectionType type=Qt::AutoConnection) const |
| bool | disconnect (const char *signal=0, const QObject *receiver=0, const char *member=0) |
| bool | disconnect (const QObject *receiver, const char *member=0) |
| void | dumpObjectInfo () |
| Dumps information about signal connections, etc. More... | |
| void | dumpObjectTree () |
| Dumps a tree of children to the debug output. More... | |
| QList< QByteArray > | dynamicPropertyNames () const |
| Returns the names of all properties that were dynamically added to the object using setProperty(). More... | |
| virtual bool | eventFilter (QObject *, QEvent *) |
| Filters events if this object has been installed as an event filter for the watched object. More... | |
| template<typename T > | |
| T | findChild (const QString &aName=QString()) const |
| Returns the child of this object that can be cast into type T and that is called name, or 0 if there is no such object. More... | |
| template<typename T > | |
| QList< T > | findChildren (const QString &aName=QString()) const |
| Returns all children of this object with the given name that can be cast to type T, or an empty list if there are no such objects. More... | |
| template<typename T > | |
| QList< T > | findChildren (const QRegExp &re) const |
| bool | inherits (const char *classname) const |
| Returns true if this object is an instance of a class that inherits className or a QObject subclass that inherits className; otherwise returns false. More... | |
| void | installEventFilter (QObject *) |
| Installs an event filter filterObj on this object. More... | |
| bool | isWidgetType () const |
| Returns true if the object is a widget; otherwise returns false. More... | |
| void | killTimer (int id) |
| Kills the timer with timer identifier, id. More... | |
| virtual const QMetaObject * | metaObject () const |
| Returns a pointer to the meta-object of this object. More... | |
| void | moveToThread (QThread *thread) |
| Changes the thread affinity for this object and its children. More... | |
| QString | objectName () const |
| QObject * | parent () const |
| Returns a pointer to the parent object. More... | |
| QVariant | property (const char *name) const |
| Returns the value of the object's name property. More... | |
| Q_INVOKABLE | QObject (QObject *parent=0) |
| Constructs an object with parent object parent. More... | |
| void | removeEventFilter (QObject *) |
| Removes an event filter object obj from this object. More... | |
| void | setObjectName (const QString &name) |
| void | setParent (QObject *) |
| Makes the object a child of parent. More... | |
| bool | setProperty (const char *name, const QVariant &value) |
| Sets the value of the object's name property to value. More... | |
| void | setUserData (uint id, QObjectUserData *data) |
| bool | signalsBlocked () const |
| Returns true if signals are blocked; otherwise returns false. More... | |
| int | startTimer (int interval) |
| Starts a timer and returns a timer identifier, or returns zero if it could not start a timer. More... | |
| QThread * | thread () const |
| Returns the thread in which the object lives. More... | |
| QObjectUserData * | userData (uint id) const |
| virtual | ~QObject () |
| Destroys the object, deleting all its child objects. More... | |
| Public Functions inherited from QPaintDevice | |
| int | colorCount () const |
| int | depth () const |
| int | height () const |
| int | heightMM () const |
| int | logicalDpiX () const |
| int | logicalDpiY () const |
| QT_DEPRECATED int | numColors () const |
| bool | paintingActive () const |
| int | physicalDpiX () const |
| int | physicalDpiY () const |
| int | width () const |
| int | widthMM () const |
| virtual | ~QPaintDevice () |
Protected Functions | |
| QRectF | blockBoundingGeometry (const QTextBlock &block) const |
| Returns the bounding rectangle of the text block in content coordinates. More... | |
| QRectF | blockBoundingRect (const QTextBlock &block) const |
| Returns the bounding rectangle of the text block in the block's own coordinates. More... | |
| virtual bool | canInsertFromMimeData (const QMimeData *source) const |
| This function returns true if the contents of the MIME data object, specified by source, can be decoded and inserted into the document. More... | |
| virtual void | changeEvent (QEvent *e) |
| Reimplemented Function More... | |
| QPointF | contentOffset () const |
| Returns the content's origin in viewport coordinates. More... | |
| virtual void | contextMenuEvent (QContextMenuEvent *e) |
| Shows the standard context menu created with createStandardContextMenu(). More... | |
| virtual QMimeData * | createMimeDataFromSelection () const |
| This function returns a new MIME data object to represent the contents of the text edit's current selection. More... | |
| virtual void | dragEnterEvent (QDragEnterEvent *e) |
| Reimplemented Function More... | |
| virtual void | dragLeaveEvent (QDragLeaveEvent *e) |
| Reimplemented Function More... | |
| virtual void | dragMoveEvent (QDragMoveEvent *e) |
| Reimplemented Function More... | |
| virtual void | dropEvent (QDropEvent *e) |
| Reimplemented Function More... | |
| virtual bool | event (QEvent *e) |
| QTextBlock | firstVisibleBlock () const |
| Returns the first visible block. More... | |
| virtual void | focusInEvent (QFocusEvent *e) |
| Reimplemented Function More... | |
| virtual bool | focusNextPrevChild (bool next) |
| Reimplemented Function More... | |
| virtual void | focusOutEvent (QFocusEvent *e) |
| Reimplemented Function More... | |
| QAbstractTextDocumentLayout::PaintContext | getPaintContext () const |
| Returns the paint context for the viewport(), useful only when reimplementing paintEvent(). More... | |
| virtual void | inputMethodEvent (QInputMethodEvent *) |
| Reimplemented Function More... | |
| QVariant | inputMethodQuery (Qt::InputMethodQuery property) const |
| This method is only relevant for input widgets. More... | |
| virtual void | insertFromMimeData (const QMimeData *source) |
| This function inserts the contents of the MIME data object, specified by source, into the text edit at the current cursor position. More... | |
| virtual void | keyPressEvent (QKeyEvent *e) |
| Reimplemented Function More... | |
| virtual void | keyReleaseEvent (QKeyEvent *e) |
| Reimplemented Function More... | |
| virtual void | mouseDoubleClickEvent (QMouseEvent *e) |
| Reimplemented Function More... | |
| virtual void | mouseMoveEvent (QMouseEvent *e) |
| Reimplemented Function More... | |
| virtual void | mousePressEvent (QMouseEvent *e) |
| Reimplemented Function More... | |
| virtual void | mouseReleaseEvent (QMouseEvent *e) |
| Reimplemented Function More... | |
| virtual void | paintEvent (QPaintEvent *e) |
| Reimplemented Function More... | |
| QPlainTextEdit (QPlainTextEditPrivate &dd, QWidget *parent) | |
| virtual void | resizeEvent (QResizeEvent *e) |
| Reimplemented Function More... | |
| virtual void | scrollContentsBy (int dx, int dy) |
| em>Reimplemented Function More... | |
| virtual void | showEvent (QShowEvent *) |
| Reimplemented Function More... | |
| virtual void | timerEvent (QTimerEvent *e) |
| virtual void | wheelEvent (QWheelEvent *e) |
| Reimplemented Function More... | |
| Protected Functions inherited from QAbstractScrollArea | |
| QAbstractScrollArea (QAbstractScrollAreaPrivate &dd, QWidget *parent=0) | |
| Creates a new QAbstractScrollAreaPrivate, dd with the given parent. More... | |
| void | setViewportMargins (int left, int top, int right, int bottom) |
| Sets the margins around the scrolling area to left, top, right and bottom. More... | |
| void | setViewportMargins (const QMargins &margins) |
| Sets margins around the scrolling area. More... | |
| virtual bool | viewportEvent (QEvent *) |
| The main event handler for the scrolling area (the viewport() widget). More... | |
| Protected Functions inherited from QFrame | |
| void | drawFrame (QPainter *) |
| em>Reimplemented Function More... | |
| QFrame (QFramePrivate &dd, QWidget *parent=0, Qt::WindowFlags f=0) | |
| Protected Functions inherited from QWidget | |
| virtual void | actionEvent (QActionEvent *) |
| This event handler is called with the given event whenever the widget's actions are changed. More... | |
| virtual void | closeEvent (QCloseEvent *) |
| This event handler is called with the given event when Qt receives a window close request for a top-level widget from the window system. More... | |
| void | create (WId=0, bool initializeWindow=true, bool destroyOldWindow=true) |
| Creates a new widget window if window is 0, otherwise sets the widget's window to window. More... | |
| void | destroy (bool destroyWindow=true, bool destroySubWindows=true) |
| Frees up window system resources. More... | |
| virtual void | enabledChange (bool) |
| virtual void | enterEvent (QEvent *) |
| This event handler can be reimplemented in a subclass to receive widget enter events which are passed in the event parameter. More... | |
| bool | focusNextChild () |
| Finds a new widget to give the keyboard focus to, as appropriate for Tab, and returns true if it can find a new widget, or false if it can't. More... | |
| bool | focusPreviousChild () |
| Finds a new widget to give the keyboard focus to, as appropriate for Shift+Tab, and returns true if it can find a new widget, or false if it can't. More... | |
| virtual void | fontChange (const QFont &) |
| virtual void | hideEvent (QHideEvent *) |
| This event handler can be reimplemented in a subclass to receive widget hide events. More... | |
| virtual void | languageChange () |
| virtual void | leaveEvent (QEvent *) |
| This event handler can be reimplemented in a subclass to receive widget leave events which are passed in the event parameter. More... | |
| virtual bool | macEvent (EventHandlerCallRef, EventRef) |
| This special event handler can be reimplemented in a subclass to receive native Macintosh events. More... | |
| int | metric (PaintDeviceMetric) const |
| Internal implementation of the virtual QPaintDevice::metric() function. More... | |
| virtual void | moveEvent (QMoveEvent *) |
| This event handler can be reimplemented in a subclass to receive widget move events which are passed in the event parameter. More... | |
| virtual void | paletteChange (const QPalette &) |
| QWidget (QWidgetPrivate &d, QWidget *parent, Qt::WindowFlags f) | |
| virtual bool | qwsEvent (QWSEvent *) |
| This special event handler can be reimplemented in a subclass to receive native Qt for Embedded Linux events which are passed in the event parameter. More... | |
| void | resetInputContext () |
| This function can be called on the widget that currently has focus to reset the input method operating on it. More... | |
| virtual void | styleChange (QStyle &) |
| virtual void | tabletEvent (QTabletEvent *) |
| This event handler, for event event, can be reimplemented in a subclass to receive tablet events for the widget. More... | |
| virtual void | windowActivationChange (bool) |
| virtual bool | winEvent (MSG *message, long *result) |
| This special event handler can be reimplemented in a subclass to receive native Windows events which are passed in the message parameter. More... | |
| virtual bool | x11Event (XEvent *) |
| This special event handler can be reimplemented in a subclass to receive native X11 events passed in the event parameter. More... | |
| Protected Functions inherited from QObject | |
| virtual void | childEvent (QChildEvent *) |
| This event handler can be reimplemented in a subclass to receive child events. More... | |
| virtual void | connectNotify (const char *signal) |
| This virtual function is called when something has been connected to signal in this object. More... | |
| virtual void | customEvent (QEvent *) |
| This event handler can be reimplemented in a subclass to receive custom events. More... | |
| virtual void | disconnectNotify (const char *signal) |
| This virtual function is called when something has been disconnected from signal in this object. More... | |
| QObject (QObjectPrivate &dd, QObject *parent=0) | |
| int | receivers (const char *signal) const |
| Returns the number of receivers connected to the signal. More... | |
| QObject * | sender () const |
| Returns a pointer to the object that sent the signal, if called in a slot activated by a signal; otherwise it returns 0. More... | |
| int | senderSignalIndex () const |
| Protected Functions inherited from QPaintDevice | |
| QPaintDevice () | |
Properties | |
| bool | backgroundVisible |
| whether the palette background is visible outside the document area More... | |
| int | blockCount |
| the number of text blocks in the document. More... | |
| bool | centerOnScroll |
| whether the cursor should be centered on screen More... | |
| int | cursorWidth |
| This property specifies the width of the cursor in pixels. More... | |
| QString | documentTitle |
| the title of the document parsed from the text. More... | |
| LineWrapMode | lineWrapMode |
| the line wrap mode More... | |
| int | maximumBlockCount |
| the limit for blocks in the document. More... | |
| bool | overwriteMode |
| whether text entered by the user will overwrite existing text More... | |
| QString | plainText |
| This property gets and sets the plain text editor's contents. More... | |
| bool | readOnly |
| whether the text edit is read-only More... | |
| bool | tabChangesFocus |
| whether Tab changes focus or is accepted as input More... | |
| int | tabStopWidth |
| the tab stop width in pixels More... | |
| Qt::TextInteractionFlags | textInteractionFlags |
| Specifies how the label should interact with user input if it displays text. More... | |
| bool | undoRedoEnabled |
| whether undo and redo are enabled More... | |
Friends | |
| class | QPlainTextEditControl |
Additional Inherited Members | |
| Static Public Functions inherited from QWidget | |
| static QWidget * | find (WId) |
| Returns a pointer to the widget with window identifer/handle id. More... | |
| static QWidget * | keyboardGrabber () |
| Returns the widget that is currently grabbing the keyboard input. More... | |
| static QWidget * | mouseGrabber () |
| Returns the widget that is currently grabbing the mouse input. More... | |
| static void | setTabOrder (QWidget *, QWidget *) |
| Puts the second widget after the first widget in the focus order. More... | |
| Static Public Functions inherited from QObject | |
| static bool | connect (const QObject *sender, const char *signal, const QObject *receiver, const char *member, Qt::ConnectionType=Qt::AutoConnection) |
| Creates a connection of the given type from the signal in the sender object to the method in the receiver object. More... | |
| static bool | connect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &method, Qt::ConnectionType type=Qt::AutoConnection) |
| static bool | disconnect (const QObject *sender, const char *signal, const QObject *receiver, const char *member) |
| Disconnects signal in object sender from method in object receiver. More... | |
| static bool | disconnect (const QObject *sender, const QMetaMethod &signal, const QObject *receiver, const QMetaMethod &member) |
| static uint | registerUserData () |
| static QString | tr (const char *sourceText, const char *comment=0, int n=-1) |
| static QString | trUtf8 (const char *sourceText, const char *comment=0, int n=-1) |
| Static Public Functions inherited from QPaintDevice | |
| static QWSDisplay * | qwsDisplay () |
| Static Public Variables inherited from QObject | |
| static const QMetaObject | staticMetaObject |
| This variable stores the meta-object for the class. More... | |
| Protected Slots inherited from QAbstractScrollArea | |
| void | setupViewport (QWidget *viewport) |
| This slot is called by QAbstractScrollArea after setViewport(viewport) has been called. More... | |
| Protected Slots inherited from QWidget | |
| void | updateMicroFocus () |
| Updates the widget's micro focus. More... | |
| Protected Variables inherited from QObject | |
| QScopedPointer< QObjectData > | d_ptr |
| Protected Variables inherited from QPaintDevice | |
| ushort | painters |
| Static Protected Variables inherited from QObject | |
| static const QMetaObject | staticQtMetaObject |
| Related Functions inherited from QWidget | |
| QWidgetList | |
| WId | |
| Platform dependent window identifier. More... | |
| Related Functions inherited from QObject | |
| T | qFindChildqFindChildren (const QObject *obj, const QString &name)() |
| QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QString &name)() |
| QList< T > | qFindChildrenqFindChildren (const QObject *obj, const QRegExp ®Exp)() |
| T * | qobject_cast (QObject *object) |
| QObjectList | |
| void * | qt_find_obj_child (QObject *parent, const char *type, const QString &name) |
| Returns a pointer to the object named name that inherits type and with a given parent. More... | |
| Related Functions inherited from QPaintDevice | |
| const Q_GUI_EXPORT QX11Info * | qt_x11Info (const QPaintDevice *pd) |
| Returns the QX11Info structure for the pd paint device. More... | |
The QPlainTextEdit class provides a widget that is used to edit and display plain text.
QPlainTextEdit is an advanced viewer/editor supporting plain text. It is optimized to handle large documents and to respond quickly to user input.
QPlainText uses very much the same technology and concepts as QTextEdit, but is optimized for plain text handling.
QPlainTextEdit works on paragraphs and characters. A paragraph is a formatted string which is word-wrapped to fit into the width of the widget. By default when reading plain text, one newline signifies a paragraph. A document consists of zero or more paragraphs. Paragraphs are separated by hard line breaks. Each character within a paragraph has its own attributes, for example, font and color.
The shape of the mouse cursor on a QPlainTextEdit is Qt::IBeamCursor by default. It can be changed through the viewport()'s cursor property.
The text is set or replaced using setPlainText() which deletes the existing text and replaces it with the text passed to setPlainText().
Text can be inserted using the QTextCursor class or using the convenience functions insertPlainText(), appendPlainText() or paste().
By default, the text edit wraps words at whitespace to fit within the text edit widget. The setLineWrapMode() function is used to specify the kind of line wrap you want, WidgetWidth or NoWrap if you don't want any wrapping. If you use word wrap to the widget's width WidgetWidth , you can specify whether to break on whitespace or anywhere with setWordWrapMode().
The find() function can be used to find and select a given string within the text.
If you want to limit the total number of paragraphs in a QPlainTextEdit, as it is for example useful in a log viewer, then you can use the maximumBlockCount property. The combination of setMaximumBlockCount() and appendPlainText() turns QPlainTextEdit into an efficient viewer for log text. The scrolling can be reduced with the centerOnScroll() property, making the log viewer even faster. Text can be formatted in a limited way, either using a syntax highlighter (see below), or by appending html-formatted text with appendHtml(). While QPlainTextEdit does not support complex rich text rendering with tables and floats, it does support limited paragraph-based formatting that you may need in a log viewer.
When QPlainTextEdit is used read-only the key bindings are limited to navigation, and text may only be selected with the mouse:
| Keypresses | Action |
| Qt::UpArrow | Moves one line up. |
| Qt::DownArrow | Moves one line down. |
| Qt::LeftArrow | Moves one character to the left. |
| Qt::RightArrow | Moves one character to the right. |
| PageUp | Moves one (viewport) page up. |
| PageDown | Moves one (viewport) page down. |
| Home | Moves to the beginning of the text. |
| End | Moves to the end of the text. |
| Alt+Wheel | Scrolls the page horizontally (the Wheel is the mouse wheel). |
| Ctrl+Wheel | Zooms the text. |
| Ctrl+A | Selects all text. |
All the information about using QPlainTextEdit as a display widget also applies here.
Selection of text is handled by the QTextCursor class, which provides functionality for creating selections, retrieving the text contents or deleting selections. You can retrieve the object that corresponds with the user-visible cursor using the textCursor() method. If you want to set a selection in QPlainTextEdit just create one on a QTextCursor object and then make that cursor the visible cursor using setCursor(). The selection can be copied to the clipboard with copy(), or cut to the clipboard with cut(). The entire text can be selected using selectAll().
QPlainTextEdit holds a QTextDocument object which can be retrieved using the document() method. You can also set your own document object using setDocument(). QTextDocument emits a textChanged() signal if the text changes and it also provides a isModified() function which will return true if the text has been modified since it was either loaded or since the last call to setModified with false as argument. In addition it provides methods for undo and redo.
Just like QTextEdit, QPlainTextEdit works together with QSyntaxHighlighter.
The list of key bindings which are implemented for editing:
| Keypresses | Action |
| Backspace | Deletes the character to the left of the cursor. |
| Delete | Deletes the character to the right of the cursor. |
| Ctrl+C | Copy the selected text to the clipboard. |
| Ctrl+Insert | Copy the selected text to the clipboard. |
| Ctrl+K | Deletes to the end of the line. |
| Ctrl+V | Pastes the clipboard text into text edit. |
| Shift+Insert | Pastes the clipboard text into text edit. |
| Ctrl+X | Deletes the selected text and copies it to the clipboard. |
| Shift+Delete | Deletes the selected text and copies it to the clipboard. |
| Ctrl+Z | Undoes the last operation. |
| Ctrl+Y | Redoes the last operation. |
| LeftArrow | Moves the cursor one character to the left. |
| Ctrl+LeftArrow | Moves the cursor one word to the left. |
| RightArrow | Moves the cursor one character to the right. |
| Ctrl+RightArrow | Moves the cursor one word to the right. |
| UpArrow | Moves the cursor one line up. |
| Ctrl+UpArrow | Moves the cursor one word up. |
| DownArrow | Moves the cursor one line down. |
| Ctrl+Down Arrow | Moves the cursor one word down. |
| PageUp | Moves the cursor one page up. |
| PageDown | Moves the cursor one page down. |
| Home | Moves the cursor to the beginning of the line. |
| Ctrl+Home | Moves the cursor to the beginning of the text. |
| End | Moves the cursor to the end of the line. |
| Ctrl+End | Moves the cursor to the end of the text. |
| Alt+Wheel | Scrolls the page horizontally (the Wheel is the mouse wheel). |
| Ctrl+Wheel | Zooms the text. |
To select (mark) text hold down the Shift key whilst pressing one of the movement keystrokes, for example, Shift+Right Arrow will select the character to the right, and Shift+Ctrl+Right Arrow will select the word to the right, etc.
QPlainTextEdit is a thin class, implemented by using most of the technology that is behind QTextEdit and QTextDocument. Its performance benefits over QTextEdit stem mostly from using a different and simplified text layout called QPlainTextDocumentLayout on the text document (see QTextDocument::setDocumentLayout()). The plain text document layout does not support tables nor embedded frames, and replaces a pixel-exact height calculation with a line-by-line respectively paragraph-by-paragraph scrolling approach. This makes it possible to handle significantly larger documents, and still resize the editor with line wrap enabled in real time. It also makes for a fast log viewer (see setMaximumBlockCount()).
Definition at line 69 of file qplaintextedit.h.
| Enumerator | |
|---|---|
| NoWrap | |
| WidgetWidth | |
Definition at line 90 of file qplaintextedit.h.
|
explicit |
Constructs an empty QPlainTextEdit with parent parent.
Definition at line 1244 of file qplaintextedit.cpp.
Constructs a QPlainTextEdit with parent parent.
The text edit will display the plain text text.
Definition at line 1265 of file qplaintextedit.cpp.
|
virtual |
Destructor.
Definition at line 1276 of file qplaintextedit.cpp.
|
protected |
Definition at line 1254 of file qplaintextedit.cpp.
Returns the reference of the anchor at position pos, or an empty string if no anchor exists at that point.
Definition at line 1359 of file qplaintextedit.cpp.
|
slot |
Appends a new paragraph with html to the end of the text edit.
Definition at line 2914 of file qplaintextedit.cpp.
|
slot |
Appends a new paragraph with text to the end of the text edit.
Definition at line 2902 of file qplaintextedit.cpp.
| bool QPlainTextEdit::backgroundVisible | ( | ) | const |
Referenced by paintEvent(), and setWordWrapMode().
|
protected |
Returns the bounding rectangle of the text block in content coordinates.
Translate the rectangle with the contentOffset() to get visual coordinates on the viewport.
Definition at line 2996 of file qplaintextedit.cpp.
Referenced by QScriptEdit::extraAreaPaintEvent().
|
protected |
Returns the bounding rectangle of the text block in the block's own coordinates.
Definition at line 3007 of file qplaintextedit.cpp.
Referenced by QScriptEdit::extraAreaPaintEvent(), and paintEvent().
| int QPlainTextEdit::blockCount | ( | ) | const |
Referenced by blockBoundingRect(), and QScriptEdit::extraAreaWidth().
|
signal |
This signal is emitted whenever the block count changes.
The new block count is passed in newBlockCount.
Referenced by QScriptEdit::QScriptEdit().
|
protectedvirtual |
This function returns true if the contents of the MIME data object, specified by source, can be decoded and inserted into the document.
It is called for example when during a drag operation the mouse enters this widget and it is necessary to determine whether it is possible to accept the drag.
Definition at line 2407 of file qplaintextedit.cpp.
Referenced by QPlainTextEditControl::canInsertFromMimeData().
| bool QPlainTextEdit::canPaste | ( | ) | const |
Returns whether text can be pasted from the clipboard into the textedit.
Definition at line 2555 of file qplaintextedit.cpp.
|
slot |
Scrolls the document in order to center the cursor vertically.
Definition at line 2953 of file qplaintextedit.cpp.
Referenced by QScriptEdit::gotoLine().
| bool QPlainTextEdit::centerOnScroll | ( | ) | const |
Referenced by QPlainTextEditPrivate::append(), paintEvent(), and setBackgroundVisible().
|
protectedvirtual |
Reimplemented Function
Reimplemented from QFrame.
Definition at line 2202 of file qplaintextedit.cpp.
|
slot |
Deletes all the text in the text edit.
Note that the undo/redo history is cleared by this function.
Definition at line 1464 of file qplaintextedit.cpp.
Referenced by keyPressEvent(), and timerEvent().
|
protected |
Returns the content's origin in viewport coordinates.
The origin of the content of a plain text edit is always the top left corner of the first visible text block. The content offset is different from (0,0) when the text has been scrolled horizontally, or when the first visible block has been scrolled partially off the screen, i.e. the visible text does not start with the first line of the first visible block, or when the first visible block is the very first block and the editor displays a margin.
Definition at line 2983 of file qplaintextedit.cpp.
Referenced by QScriptEdit::extraAreaPaintEvent(), and paintEvent().
|
protectedvirtual |
Shows the standard context menu created with createStandardContextMenu().
If you do not want the text edit to have a context menu, you can set its contextMenuPolicy to Qt::NoContextMenu. If you want to customize the context menu, reimplement this function. If you want to extend the standard context menu, reimplement this function, call createStandardContextMenu() and extend the menu returned.
Information about the event is passed in the event object.
Reimplemented from QAbstractScrollArea.
Definition at line 2075 of file qplaintextedit.cpp.
|
slot |
Copies any selected text to the clipboard.
Definition at line 1430 of file qplaintextedit.cpp.
|
signal |
This signal is emitted when text is selected or de-selected in the text edit.
When text is selected this signal will be emitted with yes set to true. If no text has been selected or if the selected text is de-selected this signal is emitted with yes set to false.
If yes is true then copy() can be used to copy the selection to the clipboard. If yes is false then copy() does nothing.
|
protectedvirtual |
This function returns a new MIME data object to represent the contents of the text edit's current selection.
It is called when the selection needs to be encapsulated into a new QMimeData object; for example, when a drag and drop operation is started, or when data is copied to the clipboard.
If you reimplement this function, note that the ownership of the returned QMimeData object is passed to the caller. The selection can be retrieved by using the textCursor() function.
Definition at line 2395 of file qplaintextedit.cpp.
Referenced by QPlainTextEditControl::createMimeDataFromSelection().
| QMenu * QPlainTextEdit::createStandardContextMenu | ( | ) |
This function creates the standard context menu which is shown when the user clicks on the line edit with the right mouse button.
It is called from the default contextMenuEvent() handler. The popup menu's ownership is transferred to the caller.
Definition at line 2239 of file qplaintextedit.cpp.
| QTextCharFormat QPlainTextEdit::currentCharFormat | ( | ) | const |
Returns the char format that is used when inserting new text.
Definition at line 2514 of file qplaintextedit.cpp.
| QTextCursor QPlainTextEdit::cursorForPosition | ( | const QPoint & | pos | ) | const |
returns a QTextCursor at position pos (in viewport coordinates).
Definition at line 2249 of file qplaintextedit.cpp.
Referenced by QScriptEdit::extraAreaMouseEvent().
|
signal |
This signal is emitted whenever the position of the cursor changed.
Referenced by QScriptEdit::QScriptEdit().
| QRect QPlainTextEdit::cursorRect | ( | const QTextCursor & | cursor | ) | const |
returns a rectangle (in viewport coordinates) that includes the cursor.
Definition at line 2259 of file qplaintextedit.cpp.
| QRect QPlainTextEdit::cursorRect | ( | ) | const |
returns a rectangle (in viewport coordinates) that includes the cursor of the text edit.
Definition at line 2274 of file qplaintextedit.cpp.
Referenced by event().
| int QPlainTextEdit::cursorWidth | ( | ) | const |
Referenced by paintEvent(), and setTabStopWidth().
|
slot |
Copies the selected text to the clipboard and deletes it from the text edit.
If there is no selected text nothing happens.
Definition at line 1418 of file qplaintextedit.cpp.
| QTextDocument * QPlainTextEdit::document | ( | ) | const |
Returns a pointer to the underlying document.
Definition at line 1327 of file qplaintextedit.cpp.
Referenced by anchorAt(), QPlainTextEditPrivate::append(), blockBoundingRect(), event(), QScriptEdit::gotoLine(), keyPressEvent(), paintEvent(), QAccessiblePlainTextEdit::textDocument(), and QScriptEdit::updateExtraSelections().
|
inline |
Definition at line 120 of file qplaintextedit.h.
|
protectedvirtual |
Reimplemented Function
Reimplemented from QAbstractScrollArea.
Definition at line 2085 of file qplaintextedit.cpp.
|
protectedvirtual |
Reimplemented Function
Reimplemented from QAbstractScrollArea.
Definition at line 2094 of file qplaintextedit.cpp.
|
protectedvirtual |
Reimplemented Function
Reimplemented from QAbstractScrollArea.
Definition at line 2104 of file qplaintextedit.cpp.
|
protectedvirtual |
Reimplemented Function
Reimplemented from QAbstractScrollArea.
Definition at line 2115 of file qplaintextedit.cpp.
| void QPlainTextEdit::ensureCursorVisible | ( | ) |
Ensures that the cursor is visible by scrolling the text edit if necessary.
Definition at line 2942 of file qplaintextedit.cpp.
Referenced by QPlainTextEditControl::ensureCursorVisible(), event(), inputMethodEvent(), setLineWrapMode(), and showEvent().
|
protectedvirtual |
Reimplemented from QAbstractScrollArea.
Definition at line 1486 of file qplaintextedit.cpp.
| QList< QTextEdit::ExtraSelection > QPlainTextEdit::extraSelections | ( | ) | const |
Returns previously set extra selections.
Definition at line 2379 of file qplaintextedit.cpp.
Referenced by QScriptEdit::updateExtraSelections().
| bool QPlainTextEdit::find | ( | const QString & | exp, |
| QTextDocument::FindFlags | options = 0 |
||
| ) |
Finds the next occurrence of the string, exp, using the given options.
Returns true if exp was found and changes the cursor to select the match; otherwise returns false.
Definition at line 2741 of file qplaintextedit.cpp.
Referenced by QScriptDebuggerCodeView::find().
|
protected |
Returns the first visible block.
Definition at line 2964 of file qplaintextedit.cpp.
Referenced by QScriptEdit::extraAreaPaintEvent(), and paintEvent().
|
protectedvirtual |
Reimplemented Function
Reimplemented from QWidget.
Definition at line 2170 of file qplaintextedit.cpp.
|
protectedvirtual |
Reimplemented Function
Reimplemented from QWidget.
Definition at line 2051 of file qplaintextedit.cpp.
|
protectedvirtual |
Reimplemented Function
Reimplemented from QWidget.
Definition at line 2182 of file qplaintextedit.cpp.
|
protected |
Returns the paint context for the viewport(), useful only when reimplementing paintEvent().
Definition at line 3031 of file qplaintextedit.cpp.
Referenced by paintEvent().
|
protectedvirtual |
Reimplemented Function
em>Reimplemented Function
Reimplemented from QWidget.
Definition at line 2127 of file qplaintextedit.cpp.
|
protectedvirtual |
This method is only relevant for input widgets.
It is used by the input method to query a set of properties of the widget to be able to support complex input method operations as support for surrounding text and reconversions.
query specifies which property is queried.
Reimplemented from QWidget.
Definition at line 2152 of file qplaintextedit.cpp.
|
protectedvirtual |
This function inserts the contents of the MIME data object, specified by source, into the text edit at the current cursor position.
It is called whenever text is inserted as the result of a clipboard paste operation, or when the text edit accepts data from a drag and drop operation.
Definition at line 2420 of file qplaintextedit.cpp.
Referenced by QPlainTextEditControl::insertFromMimeData().
|
slot |
Convenience slot that inserts text at the current cursor position.
It is equivalent to
Definition at line 2530 of file qplaintextedit.cpp.
| bool QPlainTextEdit::isReadOnly | ( | ) | const |
Definition at line 2439 of file qplaintextedit.cpp.
Referenced by mouseReleaseEvent(), paintEvent(), and shouldEnableInputMethod().
|
inline |
Definition at line 123 of file qplaintextedit.h.
|
protectedvirtual |
Reimplemented Function
Reimplemented from QAbstractScrollArea.
Definition at line 1616 of file qplaintextedit.cpp.
|
protectedvirtual |
Reimplemented Function
Reimplemented from QWidget.
Definition at line 1764 of file qplaintextedit.cpp.
| LineWrapMode QPlainTextEdit::lineWrapMode | ( | ) | const |
Referenced by setTabChangesFocus().
Loads the resource specified by the given type and name.
This function is an extension of QTextDocument::loadResource().
Definition at line 1799 of file qplaintextedit.cpp.
Referenced by QPlainTextEditControl::loadResource().
|
inline |
Definition at line 130 of file qplaintextedit.h.
Referenced by QPlainTextEditPrivate::append().
| void QPlainTextEdit::mergeCurrentCharFormat | ( | const QTextCharFormat & | modifier | ) |
Merges the properties specified in modifier into the current character format by calling QTextCursor::mergeCharFormat on the editor's cursor.
If the editor has a selection then the properties of modifier are directly applied to the selection.
Definition at line 2493 of file qplaintextedit.cpp.
|
signal |
This signal is emitted whenever the content of the document changes in a way that affects the modification state.
If changed is true, the document has been modified; otherwise it is false.
For example, calling setModified(false) on a document and then inserting text causes the signal to get emitted. If you undo that operation, causing the document to return to its original unmodified state, the signal will get emitted again.
|
protectedvirtual |
Reimplemented Function
Reimplemented from QAbstractScrollArea.
Definition at line 2043 of file qplaintextedit.cpp.
|
protectedvirtual |
Reimplemented Function
Reimplemented from QAbstractScrollArea.
Definition at line 2010 of file qplaintextedit.cpp.
Referenced by timerEvent().
|
protectedvirtual |
Reimplemented Function
Reimplemented from QAbstractScrollArea.
Definition at line 1998 of file qplaintextedit.cpp.
|
protectedvirtual |
Reimplemented Function
Reimplemented from QAbstractScrollArea.
Definition at line 2027 of file qplaintextedit.cpp.
| void QPlainTextEdit::moveCursor | ( | QTextCursor::MoveOperation | operation, |
| QTextCursor::MoveMode | mode = QTextCursor::MoveAnchor |
||
| ) |
Moves the cursor by performing the given operation.
If mode is QTextCursor::KeepAnchor, the cursor selects the text it moves over. This is the same effect that the user achieves when they hold down the Shift key and move the cursor with the cursor keys.
Definition at line 2546 of file qplaintextedit.cpp.
| bool QPlainTextEdit::overwriteMode | ( | ) | const |
Referenced by cursorRect(), and paintEvent().
|
protectedvirtual |
Reimplemented Function
Reimplemented from QAbstractScrollArea.
Reimplemented in QScriptEdit.
Definition at line 1854 of file qplaintextedit.cpp.
Referenced by QScriptEdit::paintEvent().
|
slot |
Pastes the text from the clipboard into the text edit at the current cursor position.
If there is no text in the clipboard nothing happens.
To change the behavior of this function, i.e. to modify what QPlainTextEdit can paste and how it is being pasted, reimplement the virtual canInsertFromMimeData() and insertFromMimeData() functions.
Definition at line 1450 of file qplaintextedit.cpp.
| void QPlainTextEdit::print | ( | QPrinter * | printer | ) | const |
Convenience function to print the text edit's document to the given printer.
This is equivalent to calling the print method on the document directly except that this function also supports QPrinter::Selection as print range.
Definition at line 2569 of file qplaintextedit.cpp.
|
slot |
Redoes the last operation.
If there is no operation to redo, i.e. there is no redo step in the undo/redo history, nothing happens.
Definition at line 1388 of file qplaintextedit.cpp.
|
signal |
This signal is emitted whenever redo operations become available (available is true) or unavailable (available is false).
|
protectedvirtual |
Reimplemented Function
Reimplemented from QAbstractScrollArea.
Reimplemented in QScriptEdit.
Definition at line 1808 of file qplaintextedit.cpp.
Referenced by QScriptEdit::resizeEvent().
|
protectedvirtual |
em>Reimplemented Function
Reimplemented from QAbstractScrollArea.
Definition at line 2144 of file qplaintextedit.cpp.
|
slot |
Selects all text.
Definition at line 1478 of file qplaintextedit.cpp.
Referenced by inputMethodEvent().
|
signal |
This signal is emitted whenever the selection changes.
| void QPlainTextEdit::setBackgroundVisible | ( | bool | visible | ) |
Definition at line 2691 of file qplaintextedit.cpp.
| void QPlainTextEdit::setCenterOnScroll | ( | bool | enabled | ) |
Definition at line 2726 of file qplaintextedit.cpp.
| void QPlainTextEdit::setCurrentCharFormat | ( | const QTextCharFormat & | format | ) |
Sets the char format that is be used when inserting new text to format by calling QTextCursor::setCharFormat() on the editor's cursor.
If the editor has a selection then the char format is directly applied to the selection.
Definition at line 2505 of file qplaintextedit.cpp.
| void QPlainTextEdit::setCursorWidth | ( | int | width | ) |
Definition at line 2352 of file qplaintextedit.cpp.
| void QPlainTextEdit::setDocument | ( | QTextDocument * | document | ) |
Makes document the new document of the text editor.
The parent QObject of the provided document remains the owner of the object. If the current document is a child of the text editor, then it is deleted.
The document must have a document layout that inherits QPlainTextDocumentLayout (see QTextDocument::setDocumentLayout()).
Definition at line 1297 of file qplaintextedit.cpp.
|
inline |
Definition at line 118 of file qplaintextedit.h.
| void QPlainTextEdit::setExtraSelections | ( | const QList< QTextEdit::ExtraSelection > & | selections | ) |
This function allows temporarily marking certain regions in the document with a given color, specified as selections.
This can be useful for example in a programming editor to mark a whole line of text with a given background color to indicate the existence of a breakpoint.
Definition at line 2368 of file qplaintextedit.cpp.
Referenced by QScriptEdit::updateExtraSelections().
| void QPlainTextEdit::setLineWrapMode | ( | LineWrapMode | mode | ) |
Definition at line 2629 of file qplaintextedit.cpp.
|
inline |
Definition at line 128 of file qplaintextedit.h.
| void QPlainTextEdit::setOverwriteMode | ( | bool | overwrite | ) |
Definition at line 2306 of file qplaintextedit.cpp.
|
slot |
Changes the text of the text edit to the string text.
Any previous text is removed.
text is interpreted as plain text.
Note that the undo/redo history is cleared by this function.
Definition at line 1597 of file qplaintextedit.cpp.
| void QPlainTextEdit::setReadOnly | ( | bool | ro | ) |
Definition at line 2445 of file qplaintextedit.cpp.
| void QPlainTextEdit::setTabChangesFocus | ( | bool | b | ) |
Definition at line 2594 of file qplaintextedit.cpp.
| void QPlainTextEdit::setTabStopWidth | ( | int | width | ) |
Definition at line 2328 of file qplaintextedit.cpp.
| void QPlainTextEdit::setTextCursor | ( | const QTextCursor & | cursor | ) |
Sets the visible cursor.
Definition at line 1336 of file qplaintextedit.cpp.
Referenced by QScriptDebuggerCodeView::find(), QScriptEdit::gotoLine(), keyReleaseEvent(), and QAccessiblePlainTextEdit::setTextCursor().
| void QPlainTextEdit::setTextInteractionFlags | ( | Qt::TextInteractionFlags | flags | ) |
Definition at line 2473 of file qplaintextedit.cpp.
|
inline |
Definition at line 125 of file qplaintextedit.h.
| void QPlainTextEdit::setWordWrapMode | ( | QTextOption::WrapMode | policy | ) |
Definition at line 2659 of file qplaintextedit.cpp.
|
protectedvirtual |
Reimplemented Function
Reimplemented from QWidget.
Definition at line 2191 of file qplaintextedit.cpp.
| bool QPlainTextEdit::tabChangesFocus | ( | ) | const |
Referenced by print().
| int QPlainTextEdit::tabStopWidth | ( | ) | const |
Referenced by setOverwriteMode().
|
signal |
This signal is emitted whenever the document's content changes; for example, when text is inserted or deleted, or when formatting is applied.
| QTextCursor QPlainTextEdit::textCursor | ( | ) | const |
Returns a copy of the QTextCursor that represents the currently visible cursor.
Note that changes on the returned cursor do not affect QPlainTextEdit's cursor; use setTextCursor() to update the visible cursor.
Definition at line 1347 of file qplaintextedit.cpp.
Referenced by centerCursor(), QScriptEdit::currentLineNumber(), QScriptDebuggerCodeView::find(), QAccessiblePlainTextEdit::textCursor(), and QScriptEdit::updateExtraSelections().
| Qt::TextInteractionFlags QPlainTextEdit::textInteractionFlags | ( | ) | const |
Referenced by paintEvent(), and setTextInteractionFlags().
|
protectedvirtual |
Reimplemented from QObject.
Definition at line 1543 of file qplaintextedit.cpp.
|
inline |
Returns the text of the text edit as plain text.
Definition at line 148 of file qplaintextedit.h.
|
slot |
Undoes the last operation.
If there is no operation to undo, i.e. there is no undo step in the undo/redo history, nothing happens.
Definition at line 1382 of file qplaintextedit.cpp.
|
signal |
This signal is emitted whenever undo operations become available (available is true) or unavailable (available is false).
|
signal |
This signal is emitted when the text document needs an update of the specified rect.
If the text is scrolled, rect will cover the entire viewport area. If the text is scrolled vertically, dy carries the amount of pixels the viewport was scrolled.
The purpose of the signal is to support extra widgets in plain text edit subclasses that e.g. show line numbers, breakpoints, or other extra information.
Referenced by QScriptEdit::QScriptEdit().
|
protectedvirtual |
Reimplemented Function
Reimplemented from QAbstractScrollArea.
Definition at line 2225 of file qplaintextedit.cpp.
| QTextOption::WrapMode QPlainTextEdit::wordWrapMode | ( | ) | const |
the mode QPlainTextEdit will use when wrapping text by words
By default, this property is set to QTextOption::WrapAtWordBoundaryOrAnywhere.
Definition at line 2653 of file qplaintextedit.cpp.
|
friend |
Definition at line 275 of file qplaintextedit.h.
|
private |
whether the palette background is visible outside the document area
If set to true, the plain text edit paints the palette background on the viewport area not covered by the text document. Otherwise, if set to false, it won't. The feature makes it possible for the user to visually distinguish between the area of the document, painted with the base color of the palette, and the empty area not covered by any document.
The default is false.
Definition at line 87 of file qplaintextedit.h.
|
private |
the number of text blocks in the document.
By default, in an empty document, this property contains a value of 1.
Definition at line 85 of file qplaintextedit.h.
|
private |
whether the cursor should be centered on screen
If set to true, the plain text edit scrolls the document vertically to make the cursor visible at the center of the viewport. This also allows the text edit to scroll below the end of the document. Otherwise, if set to false, the plain text edit scrolls the smallest amount possible to ensure the cursor is visible. The same algorithm is applied to any new line appended through appendPlainText().
The default is false.
Definition at line 88 of file qplaintextedit.h.
|
private |
This property specifies the width of the cursor in pixels.
The default value is 1.
Definition at line 83 of file qplaintextedit.h.
|
private |
the title of the document parsed from the text.
By default, this property contains an empty string.
Definition at line 75 of file qplaintextedit.h.
|
private |
the line wrap mode
The default mode is WidgetWidth which causes words to be wrapped at the right edge of the text edit. Wrapping occurs at whitespace, keeping whole words intact. If you want wrapping to occur within words use setWordWrapMode().
Definition at line 77 of file qplaintextedit.h.
|
private |
the limit for blocks in the document.
Specifies the maximum number of blocks the document may have. If there are more blocks in the document that specified with this property blocks are removed from the beginning of the document.
A negative or zero value specifies that the document may contain an unlimited amount of blocks.
The default value is 0.
Note that setting this property will apply the limit immediately to the document contents. Setting this property also disables the undo redo history.
Definition at line 86 of file qplaintextedit.h.
|
private |
whether text entered by the user will overwrite existing text
As with many text editors, the plain text editor widget can be configured to insert or overwrite existing text with new text entered by the user.
If this property is true, existing text is overwritten, character-for-character by new text; otherwise, text is inserted at the cursor position, displacing existing text.
By default, this property is false (new text does not overwrite existing text).
Definition at line 81 of file qplaintextedit.h.
|
private |
This property gets and sets the plain text editor's contents.
The previous contents are removed and undo/redo history is reset when this property is set.
By default, for an editor with no contents, this property contains an empty string.
Definition at line 80 of file qplaintextedit.h.
|
private |
whether the text edit is read-only
In a read-only text edit the user can only navigate through the text and select text; modifying the text is not possible.
This property's default is false.
Definition at line 79 of file qplaintextedit.h.
|
private |
whether Tab changes focus or is accepted as input
In some occasions text edits should not allow the user to input tabulators or change indentation using the Tab key, as this breaks the focus chain. The default is false.
Definition at line 74 of file qplaintextedit.h.
|
private |
the tab stop width in pixels
By default, this property contains a value of 80.
Definition at line 82 of file qplaintextedit.h.
|
private |
Specifies how the label should interact with user input if it displays text.
If the flags contain either Qt::LinksAccessibleByKeyboard or Qt::TextSelectableByKeyboard then the focus policy is also automatically set to Qt::ClickFocus.
The default value depends on whether the QPlainTextEdit is read-only or editable.
Definition at line 84 of file qplaintextedit.h.
|
private |
whether undo and redo are enabled
Users are only able to undo or redo actions if this property is true, and if there is an action that can be undone (or redone).
By default, this property is true.
Definition at line 76 of file qplaintextedit.h.