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java.lang.Objectcom.trolltech.qt.internal.QSignalEmitterInternal
com.trolltech.qt.QSignalEmitter
com.trolltech.qt.QtJambiObject
com.trolltech.qt.core.QObject
com.trolltech.qt.gui.QWidget
com.trolltech.qt.gui.QFrame
com.trolltech.qt.gui.QAbstractScrollArea
com.trolltech.qt.gui.QTextEdit
public class QTextEdit
The QTextEdit class provides a widget that is used to edit and display both plain and rich text.
QTextEdit 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. The words in the paragraph are aligned in accordance with the paragraph's alignment. Paragraphs are separated by hard line breaks. Each character within a paragraph has its own attributes, for example, font and color.
QTextEdit can display images, lists and tables. If the text is too large to view within the text edit's viewport, scroll bars will appear. The text edit can load both plain text and HTML files (a subset of HTML 3.2 and 4).
If you just need to display a small piece of rich text use QLabel
.
The rich text support in Qt is designed to provide a fast, portable and efficient way to add reasonable online help facilities to applications, and to provide a basis for rich text editors. If you find the HTML support insufficient for your needs you may consider the use of QtWebKit, which provides a full-featured web browser widget.
The shape of the mouse cursor on a QTextEdit is The text is set or replaced using Text itself can be inserted using the By default the text edit wraps words at whitespace to fit within the text edit widget. The The If you want to limit the total number of paragraphs in a QTextEdit, as it is for example open useful in a log viewer, then you can use Qt::IBeamCursor
by default. It can be changed through the viewport()
's cursor property.Using QTextEdit as a Display Widget
QTextEdit can display a large HTML subset, including tables and images. setHtml()
which deletes any existing text and replaces it with the text passed in the setHtml()
call. If you call setHtml()
with legacy HTML, and then call toHtml()
, the text that is returned may have different markup, but will render the same. The entire text can be deleted with clear()
. QTextCursor
class or using the convenience functions insertHtml()
, insertPlainText()
, append()
or paste()
. QTextCursor
is also able to insert complex objects like tables or lists into the document, and it deals with creating selections and applying changes to selected text. setLineWrapMode()
function is used to specify the kind of line wrap you want, or NoWrap
if you don't want any wrapping. Call setLineWrapMode()
to set a fixed pixel width FixedPixelWidth
, or character column (e.g. 80 column) FixedColumnWidth
with the pixels or columns specified with setLineWrapColumnOrWidth()
. If you use word wrap to the widget's width WidgetWidth
, you can specify whether to break on whitespace or anywhere with setWordWrapMode()
. find()
function can be used to find and select a given string within the text. QTextDocument
's maximumBlockCount property for that.Read-only Key Bindings
When QTextEdit is used read-only the key bindings are limited to navigation, and text may only be selected with the mouse:
Up | Moves one line up. |
Down | Moves one line down. |
Left | Moves one character to the left. |
Right | 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. |
documentTitle()
function will return the text from within HTML <title> tags.The current char format's attributes are set with setFontItalic()
, setFontWeight()
, setFontUnderline()
, setFontFamily()
, setFontPointSize()
, setTextColor()
and setCurrentFont()
. The current paragraph's alignment is set with setAlignment()
.
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 QTextEdit just create one on a QTextCursor
object and then make that cursor the visible cursor using setTextCursor()
. 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()
.
When the cursor is moved and the underlying formatting attributes change, the currentCharFormatChanged()
signal is emitted to reflect the new attributes at the new cursor position.
QTextEdit 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.Drag and Drop
QTextEdit also supports custom drag and drop behavior. By default, QTextEdit will insert plain text, HTML and rich text when the user drops data of these MIME types onto a document. Reimplement canInsertFromMimeData()
and insertFromMimeData()
to add support for additional MIME types.
For example, to allow the user to drag and drop an image onto a QTextEdit, you could the implement these functions in the following way:
public boolean canInsertFromMimeData(QMimeData source) { if (source.hasImage()) return true; else return super.canInsertFromMimeData(source); }We add support for image MIME types by returning true. For all other MIME types, we use the default implementation.
public void insertFromMimeData(QMimeData source) { if (source.hasImage()) { QImage image = (QImage) source.imageData(); QTextCursor cursor = this.textCursor(); QTextDocument document = this.document(); document.addResource(QTextDocument.ResourceType.ImageResource.value(), new QUrl("image"), image); cursor.insertImage("image"); } }We unpack the image from the
QVariant
held by the MIME source and insert it into the document as a resource.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. |
Left | Moves the cursor one character to the left. |
Ctrl+Left | Moves the cursor one word to the left. |
Right | Moves the cursor one character to the right. |
Ctrl+Right | Moves the cursor one word to the right. |
Up | Moves the cursor one line up. |
Down | Moves the cursor one line 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). |
QTextDocument
, QTextCursor
, Application Example, Syntax Highlighter Example, and Rich Text Processing.
Nested Class Summary | |
---|---|
static class |
QTextEdit.AutoFormatting
|
static class |
QTextEdit.AutoFormattingFlag
|
static class |
QTextEdit.LineWrapMode
|
Nested classes/interfaces inherited from class com.trolltech.qt.gui.QFrame |
---|
QFrame.Shadow, QFrame.Shape, QFrame.StyleMask |
Nested classes/interfaces inherited from class com.trolltech.qt.gui.QWidget |
---|
QWidget.RenderFlag, QWidget.RenderFlags |
Nested classes/interfaces inherited from class com.trolltech.qt.QSignalEmitter |
---|
QSignalEmitter.AbstractSignal, QSignalEmitter.Signal0, QSignalEmitter.Signal1, QSignalEmitter.Signal2, QSignalEmitter.Signal3, QSignalEmitter.Signal4, QSignalEmitter.Signal5, QSignalEmitter.Signal6, QSignalEmitter.Signal7, QSignalEmitter.Signal8, QSignalEmitter.Signal9 |
Nested classes/interfaces inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
---|
com.trolltech.qt.internal.QSignalEmitterInternal.AbstractSignalInternal |
Field Summary | |
---|---|
QSignalEmitter.Signal1 |
copyAvailable
This signal takes 1 generic argument(s). |
QSignalEmitter.Signal1 |
currentCharFormatChanged
This signal takes 1 generic argument(s). |
QSignalEmitter.Signal0 |
cursorPositionChanged
This signal is emitted whenever the position of the cursor changed. |
QSignalEmitter.Signal1 |
redoAvailable
This signal takes 1 generic argument(s). |
QSignalEmitter.Signal0 |
selectionChanged
This signal is emitted whenever the selection changes. |
QSignalEmitter.Signal0 |
textChanged
This signal is emitted whenever the document's content changes; for example, when text is inserted or deleted, or when formatting is applied. |
QSignalEmitter.Signal1 |
undoAvailable
This signal takes 1 generic argument(s). |
Fields inherited from class com.trolltech.qt.gui.QWidget |
---|
customContextMenuRequested |
Fields inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
---|
currentSender |
Constructor Summary | |
---|---|
QTextEdit()
Constructs an empty QTextEdit with parent parent. |
|
QTextEdit(QWidget parent)
Constructs an empty QTextEdit with parent parent. |
|
QTextEdit(java.lang.String text)
Constructs a QTextEdit with parent parent. |
|
QTextEdit(java.lang.String text,
QWidget parent)
Constructs a QTextEdit with parent parent. |
Method Summary | |
---|---|
boolean |
acceptRichText()
This property holds whether the text edit accepts rich text insertions by the user. |
Qt.Alignment |
alignment()
Returns the alignment of the current paragraph. |
java.lang.String |
anchorAt(QPoint pos)
Returns the reference of the anchor at position pos, or an empty string if no anchor exists at that point. |
void |
append(java.lang.String text)
Appends a new paragraph with text to the end of the text edit. |
QTextEdit.AutoFormatting |
autoFormatting()
This property holds the enabled set of auto formatting features. |
protected boolean |
canInsertFromMimeData(QMimeData source)
This function returns true if the contents of the MIME data object, specified by source, can be decoded and inserted into the document. |
boolean |
canPaste()
Returns whether text can be pasted from the clipboard into the textedit. |
void |
clear()
Deletes all the text in the text edit. |
void |
copy()
Copies any selected text to the clipboard. |
protected QMimeData |
createMimeDataFromSelection()
This function returns a new MIME data object to represent the contents of the text edit's current selection. |
QMenu |
createStandardContextMenu()
This function creates the standard context menu which is shown when the user clicks on the text edit with the right mouse button. |
QMenu |
createStandardContextMenu(QPoint position)
This function creates the standard context menu which is shown when the user clicks on the text edit with the right mouse button. |
QTextCharFormat |
currentCharFormat()
Returns the char format that is used when inserting new text. |
QFont |
currentFont()
Returns the font of the current format. |
QTextCursor |
cursorForPosition(QPoint pos)
returns a QTextCursor at position pos (in viewport coordinates). |
QRect |
cursorRect()
returns a rectangle (in viewport coordinates) that includes the cursor of the text edit. |
QRect |
cursorRect(QTextCursor cursor)
returns a rectangle (in viewport coordinates) that includes the cursor. |
int |
cursorWidth()
This property specifies the width of the cursor in pixels. |
void |
cut()
Copies the selected text to the clipboard and deletes it from the text edit. |
QTextDocument |
document()
Returns a pointer to the underlying document. |
java.lang.String |
documentTitle()
This property holds the title of the document parsed from the text. |
void |
ensureCursorVisible()
Ensures that the cursor is visible by scrolling the text edit if necessary. |
java.util.List |
extraSelections()
Returns previously set extra selections. |
boolean |
find(java.lang.String exp)
Finds the next occurrence of the string, exp, using the given options. |
boolean |
find(java.lang.String exp,
QTextDocument.FindFlag[] options)
|
boolean |
find(java.lang.String exp,
QTextDocument.FindFlags options)
Finds the next occurrence of the string, exp, using the given options. |
java.lang.String |
fontFamily()
Returns the font family of the current format. |
boolean |
fontItalic()
Returns true if the font of the current format is italic; otherwise returns false. |
double |
fontPointSize()
Returns the point size of the font of the current format. |
boolean |
fontUnderline()
Returns true if the font of the current format is underlined; otherwise returns false. |
int |
fontWeight()
Returns the font weight of the current format. |
protected void |
insertFromMimeData(QMimeData source)
This function inserts the contents of the MIME data object, specified by source, into the text edit at the current cursor position. |
void |
insertHtml(java.lang.String text)
Convenience slot that inserts text which is assumed to be of html formatting at the current cursor position. |
void |
insertPlainText(java.lang.String text)
Convenience slot that inserts text at the current cursor position. |
boolean |
isReadOnly()
This property holds whether the text edit is read-only. |
boolean |
isUndoRedoEnabled()
This property holds whether undo and redo are enabled. |
int |
lineWrapColumnOrWidth()
This property holds the position (in pixels or columns depending on the wrap mode) where text will be wrapped. |
QTextEdit.LineWrapMode |
lineWrapMode()
This property holds the line wrap mode. |
java.lang.Object |
loadResource(int type,
QUrl name)
Loads the resource specified by the given type and name. |
void |
mergeCurrentCharFormat(QTextCharFormat modifier)
Merges the properties specified in modifier into the current character format by calling QTextCursor.:mergeCharFormat on the editor's cursor. |
void |
moveCursor(QTextCursor.MoveOperation operation)
Moves the cursor by performing the given operation. |
void |
moveCursor(QTextCursor.MoveOperation operation,
QTextCursor.MoveMode mode)
Moves the cursor by performing the given operation. |
boolean |
overwriteMode()
Returns this QTextEdit's overwrite mode. |
void |
paste()
Pastes the text from the clipboard into the text edit at the current cursor position. |
void |
print(QPrinter printer)
Convenience function to print the text edit's document to the given printer. |
void |
redo()
Redoes the last operation. |
void |
scrollToAnchor(java.lang.String name)
Scrolls the text edit so that the anchor with the given name is visible; does nothing if the name is empty, or is already visible, or isn't found. |
void |
selectAll()
Selects all text. |
void |
setAcceptRichText(boolean accept)
This property holds whether the text edit accepts rich text insertions by the user. |
void |
setAlignment(Qt.Alignment a)
Sets the alignment of the current paragraph to a. |
void |
setAlignment(Qt.AlignmentFlag[] a)
|
void |
setAutoFormatting(QTextEdit.AutoFormatting features)
This property holds the enabled set of auto formatting features. |
void |
setAutoFormatting(QTextEdit.AutoFormattingFlag[] features)
|
void |
setCurrentCharFormat(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. |
void |
setCurrentFont(QFont f)
Sets the font of the current format to f. |
void |
setCursorWidth(int width)
This property specifies the width of the cursor in pixels. |
void |
setDocument(QTextDocument document)
Makes document the new document of the text editor. |
void |
setDocumentTitle(java.lang.String title)
This property holds the title of the document parsed from the text. |
void |
setExtraSelections(java.util.List selections)
This function allows temporarily marking certain regions in the document with a given color, specified as selections. |
void |
setFontFamily(java.lang.String fontFamily)
Sets the font family of the current format to fontFamily. |
void |
setFontItalic(boolean b)
If italic is true, sets the current format to italic; otherwise sets the current format to non-italic. |
void |
setFontPointSize(double s)
Sets the point size of the current format to s. |
void |
setFontUnderline(boolean b)
If underline is true, sets the current format to underline; otherwise sets the current format to non-underline. |
void |
setFontWeight(int w)
Sets the font weight of the current format to the given weight, where the value used is in the range defined by the QFont::Weight enum. |
void |
setHtml(java.lang.String text)
This property provides an HTML interface to the text of the text edit. |
void |
setLineWrapColumnOrWidth(int w)
This property holds the position (in pixels or columns depending on the wrap mode) where text will be wrapped. |
void |
setLineWrapMode(QTextEdit.LineWrapMode mode)
This property holds the line wrap mode. |
void |
setOverwriteMode(boolean overwrite)
This property holds the text edit's overwrite mode to overwrite. |
void |
setPlainText(java.lang.String text)
This property gets and sets the text editor's contents as plain text. |
void |
setReadOnly(boolean ro)
This property holds whether the text edit is read-only. |
void |
setTabChangesFocus(boolean b)
This property holds whether Tab changes focus or is accepted as input. |
void |
setTabStopWidth(int width)
This property holds the tab stop width in pixels. |
void |
setText(java.lang.String text)
Sets the text edit's text. |
void |
setTextBackgroundColor(QColor c)
Sets the text background color of the current format to c. |
void |
setTextColor(QColor c)
Sets the text color of the current format to c. |
void |
setTextCursor(QTextCursor cursor)
Sets the visible cursor. |
void |
setTextInteractionFlags(Qt.TextInteractionFlag[] flags)
|
void |
setTextInteractionFlags(Qt.TextInteractionFlags flags)
Specifies how the widget should interact with user input. |
void |
setUndoRedoEnabled(boolean enable)
This property holds whether undo and redo are enabled. |
void |
setWordWrapMode(QTextOption.WrapMode policy)
This property holds the mode QTextEdit will use when wrapping text by words. |
boolean |
tabChangesFocus()
This property holds whether Tab changes focus or is accepted as input. |
int |
tabStopWidth()
This property holds the tab stop width in pixels. |
QColor |
textBackgroundColor()
Returns the text background color of the current format. |
QColor |
textColor()
Returns the text color of the current format. |
QTextCursor |
textCursor()
Returns a copy of the QTextCursor that represents the currently visible cursor. |
Qt.TextInteractionFlags |
textInteractionFlags()
Specifies how the widget should interact with user input. |
java.lang.String |
toHtml()
This property provides an HTML interface to the text of the text edit. |
java.lang.String |
toPlainText()
This property gets and sets the text editor's contents as plain text. |
void |
undo()
Undoes the last operation. |
QTextOption.WrapMode |
wordWrapMode()
This property holds the mode QTextEdit will use when wrapping text by words. |
void |
zoomIn()
Zooms in on the text by making the base font size range points larger and recalculating all font sizes to be the new size. |
void |
zoomIn(int range)
Zooms in on the text by making the base font size range points larger and recalculating all font sizes to be the new size. |
void |
zoomOut()
Zooms out on the text by making the base font size range points smaller and recalculating all font sizes to be the new size. |
void |
zoomOut(int range)
Zooms out on the text by making the base font size range points smaller and recalculating all font sizes to be the new size. |
Methods inherited from class com.trolltech.qt.gui.QFrame |
---|
frameRect, frameShadow, frameShape, frameStyle, frameWidth, lineWidth, midLineWidth, setFrameRect, setFrameShadow, setFrameShape, setFrameStyle, setLineWidth, setMidLineWidth |
Methods inherited from class com.trolltech.qt.core.QObject |
---|
childEvent, children, connectSlotsByName, customEvent, disposeLater, dumpObjectInfo, dumpObjectTree, dynamicPropertyNames, event, eventFilter, findChild, findChild, findChild, findChildren, findChildren, findChildren, findChildren, indexOfProperty, installEventFilter, isWidgetType, killTimer, moveToThread, objectName, parent, properties, property, removeEventFilter, setObjectName, setParent, setProperty, startTimer, timerEvent, toString, userProperty |
Methods inherited from class com.trolltech.qt.QtJambiObject |
---|
dispose, disposed, equals, finalize, reassignNativeResources, tr, tr, tr |
Methods inherited from class com.trolltech.qt.QSignalEmitter |
---|
blockSignals, disconnect, disconnect, signalsBlocked, signalSender, thread |
Methods inherited from class com.trolltech.qt.internal.QSignalEmitterInternal |
---|
__qt_signalInitialization |
Methods inherited from class java.lang.Object |
---|
clone, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Methods inherited from interface com.trolltech.qt.QtJambiInterface |
---|
disableGarbageCollection, nativeId, nativePointer, reenableGarbageCollection, setJavaOwnership |
Field Detail |
---|
public final QSignalEmitter.Signal1 copyAvailable
This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <java.lang.Boolean(named: yes)>:
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.
selectionChanged()
.
public final QSignalEmitter.Signal1 currentCharFormatChanged
This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <com.trolltech.qt.gui.QTextCharFormat(named: f)>:
This signal is emitted if the current character format has changed, for example caused by a change of the cursor position.
The new format is f.
setCurrentCharFormat()
.
public final QSignalEmitter.Signal0 cursorPositionChanged
public final QSignalEmitter.Signal1 redoAvailable
This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <java.lang.Boolean(named: available)>:
This signal is emitted whenever redo operations become available (available is true) or unavailable (available is false).
public final QSignalEmitter.Signal0 selectionChanged
copyAvailable()
.
public final QSignalEmitter.Signal0 textChanged
public final QSignalEmitter.Signal1 undoAvailable
This signal takes 1 generic argument(s). We list their type and the name they go by in the description of this signal. <java.lang.Boolean(named: available)>:
This signal is emitted whenever undo operations become available (available is true) or unavailable (available is false).
Constructor Detail |
---|
public QTextEdit()
public QTextEdit(QWidget parent)
public QTextEdit(java.lang.String text)
public QTextEdit(java.lang.String text, QWidget parent)
Method Detail |
---|
public final boolean acceptRichText()
This property's default is true.
public final Qt.Alignment alignment()
setAlignment()
.
public final java.lang.String anchorAt(QPoint pos)
public final void append(java.lang.String text)
Note: The new paragraph appended will have the same character format and block format as the current paragraph, determined by the position of the cursor.
currentCharFormat()
, and QTextCursor::blockFormat()
.
public final QTextEdit.AutoFormatting autoFormatting()
AutoFormattingFlag
enum. The default is AutoNone
. Choose AutoAll
to enable all automatic formatting. Currently, the only automatic formatting feature provided is AutoBulletList
; future versions of Qt may offer more.
public final boolean canPaste()
public final void clear()
Note that the undo/redo history is cleared by this function.
cut()
, setPlainText()
, and setHtml()
.
public final void copy()
copyAvailable()
.
public final QMenu createStandardContextMenu()
We recommend that you use the createStandardContextMenu(QPoint
) version instead which will enable the actions that are sensitive to where the user clicked.
public final QMenu createStandardContextMenu(QPoint position)
public final QTextCharFormat currentCharFormat()
setCurrentCharFormat()
.
public final QFont currentFont()
setCurrentFont()
, setFontFamily()
, and setFontPointSize()
.
public final QTextCursor cursorForPosition(QPoint pos)
QTextCursor
at position pos (in viewport coordinates).
public final QRect cursorRect()
public final QRect cursorRect(QTextCursor cursor)
public final int cursorWidth()
public final void cut()
If there is no selected text nothing happens.
copy()
, and paste()
.
public final QTextDocument document()
setDocument()
.
public final java.lang.String documentTitle()
public final void ensureCursorVisible()
public final java.util.List extraSelections()
setExtraSelections()
.
public final boolean find(java.lang.String exp, QTextDocument.FindFlag[] options)
public final boolean find(java.lang.String exp)
public final boolean find(java.lang.String exp, QTextDocument.FindFlags options)
public final java.lang.String fontFamily()
setFontFamily()
, setCurrentFont()
, and setFontPointSize()
.
public final boolean fontItalic()
setFontItalic()
.
public final double fontPointSize()
setFontFamily()
, setCurrentFont()
, and setFontPointSize()
.
public final boolean fontUnderline()
setFontUnderline()
.
public final int fontWeight()
setFontWeight()
, setCurrentFont()
, setFontPointSize()
, and QFont::Weight
.
public final void insertHtml(java.lang.String text)
It is equivalent to:
edit.textCursor().insertHtml(fragment);Note: When using this function with a style sheet, the style sheet will only apply to the current block in the document. In order to apply a style sheet throughout a document, use
QTextDocument::setDefaultStyleSheet()
instead.
public final void insertPlainText(java.lang.String text)
It is equivalent to
edit.textCursor().insertText(text);
public final boolean isReadOnly()
This property's default is false.
public final boolean isUndoRedoEnabled()
public final int lineWrapColumnOrWidth()
FixedPixelWidth
, the value is the number of pixels from the left edge of the text edit at which text should be wrapped. If the wrap mode is FixedColumnWidth
, the value is the column number (in character columns) from the left edge of the text edit at which text should be wrapped. By default, this property contains a value of 0.
lineWrapMode
.
public final QTextEdit.LineWrapMode lineWrapMode()
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()
. If you set a wrap mode of FixedPixelWidth
or FixedColumnWidth
you should also call setLineWrapColumnOrWidth()
with the width you want. lineWrapColumnOrWidth
.
public final void mergeCurrentCharFormat(QTextCharFormat modifier)
QTextCursor::mergeCharFormat()
.
public final void moveCursor(QTextCursor.MoveOperation 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.
QTextCursor::movePosition()
.
public final void moveCursor(QTextCursor.MoveOperation operation, QTextCursor.MoveMode mode)
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.
QTextCursor::movePosition()
.
public final boolean overwriteMode()
If FALSE (the default) characters entered by the user are inserted with any characters to the right being moved out of the way. If TRUE, the editor is in overwrite mode, i.e. characters entered by the user overwrite any characters to the right of the cursor position.
public final void paste()
If there is no text in the clipboard nothing happens.
To change the behavior of this function, i.e. to modify what QTextEdit can paste and how it is being pasted, reimplement the virtual canInsertFromMimeData()
and insertFromMimeData()
functions.
cut()
, and copy()
.
public final void print(QPrinter printer)
QPrinter::Selection
as print range. QTextDocument::print()
.
public final void redo()
If there is no operation to redo, i.e. there is no redo step in the undo/redo history, nothing happens.
undo()
.
public final void scrollToAnchor(java.lang.String name)
public final void selectAll()
copy()
, cut()
, and textCursor()
.
public final void setAcceptRichText(boolean accept)
This property's default is true.
public final void setAlignment(Qt.AlignmentFlag[] a)
public final void setAlignment(Qt.Alignment a)
Qt::AlignLeft
, Qt::AlignRight
, Qt::AlignJustify
and Qt::AlignCenter
(which centers horizontally). alignment()
.
public final void setAutoFormatting(QTextEdit.AutoFormattingFlag[] features)
public final void setAutoFormatting(QTextEdit.AutoFormatting features)
AutoFormattingFlag
enum. The default is AutoNone
. Choose AutoAll
to enable all automatic formatting. Currently, the only automatic formatting feature provided is AutoBulletList
; future versions of Qt may offer more.
public final void setCurrentCharFormat(QTextCharFormat format)
QTextCursor::setCharFormat()
on the editor's cursor. If the editor has a selection then the char format is directly applied to the selection. currentCharFormat()
.
public final void setCurrentFont(QFont f)
currentFont()
, setFontPointSize()
, and setFontFamily()
.
public final void setCursorWidth(int width)
public final void setDocument(QTextDocument document)
Note: The editor does not take ownership of the document unless it is the document's parent object. The parent object 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.
document()
.
public final void setDocumentTitle(java.lang.String title)
public final void setExtraSelections(java.util.List selections)
extraSelections()
.
public final void setFontFamily(java.lang.String fontFamily)
fontFamily()
, and setCurrentFont()
.
public final void setFontItalic(boolean b)
fontItalic()
.
public final void setFontPointSize(double s)
Note that if s is zero or negative, the behavior of this function is not defined.
fontPointSize()
, setCurrentFont()
, and setFontFamily()
.
public final void setFontUnderline(boolean b)
fontUnderline()
.
public final void setFontWeight(int w)
QFont::Weight
enum. fontWeight()
, setCurrentFont()
, and setFontFamily()
.
public final void setHtml(java.lang.String text)
toHtml()
returns the text of the text edit as html.
setHtml()
changes the text of the text edit. Any previous text is removed and the undo/redo history is cleared. The input text is interpreted as rich text in html format.
Note: It is the responsibility of the caller to make sure that the text is correctly decoded when a QString containing HTML is created and passed to setHtml()
.
By default, for a newly-created, empty document, this property contains text to describe an HTML 4.0 document with no body text.
plainText
.
public final void setLineWrapColumnOrWidth(int w)
FixedPixelWidth
, the value is the number of pixels from the left edge of the text edit at which text should be wrapped. If the wrap mode is FixedColumnWidth
, the value is the column number (in character columns) from the left edge of the text edit at which text should be wrapped. By default, this property contains a value of 0.
lineWrapMode
.
public final void setLineWrapMode(QTextEdit.LineWrapMode mode)
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()
. If you set a wrap mode of FixedPixelWidth
or FixedColumnWidth
you should also call setLineWrapColumnOrWidth()
with the width you want. lineWrapColumnOrWidth
.
public final void setOverwriteMode(boolean overwrite)
If FALSE (the default) characters entered by the user are inserted with any characters to the right being moved out of the way. If TRUE, the editor is in overwrite mode, i.e. characters entered by the user overwrite any characters to the right of the cursor position.
public final void setPlainText(java.lang.String text)
If the text edit has another content type, it will not be replaced by plain text if you call toPlainText()
.
By default, for an editor with no contents, this property contains an empty string.
html
.
public final void setReadOnly(boolean ro)
This property's default is false.
public final void setTabChangesFocus(boolean b)
public final void setTabStopWidth(int width)
public final void setText(java.lang.String text)
Use setHtml()
or setPlainText()
directly to avoid text edit's guessing.
public final void setTextBackgroundColor(QColor c)
textBackgroundColor()
.
public final void setTextColor(QColor c)
textColor()
.
public final void setTextCursor(QTextCursor cursor)
textCursor()
.
public final void setTextInteractionFlags(Qt.TextInteractionFlag[] flags)
public final void setTextInteractionFlags(Qt.TextInteractionFlags flags)
The default value depends on whether the QTextEdit is read-only or editable, and whether it is a QTextBrowser
or not.
public final void setUndoRedoEnabled(boolean enable)
public final void setWordWrapMode(QTextOption.WrapMode policy)
QTextOption::WrapAtWordBoundaryOrAnywhere
. QTextOption::WrapMode
.
public final boolean tabChangesFocus()
public final int tabStopWidth()
public final QColor textBackgroundColor()
setTextBackgroundColor()
.
public final QColor textColor()
setTextColor()
.
public final QTextCursor textCursor()
QTextCursor
that represents the currently visible cursor. Note that changes on the returned cursor do not affect QTextEdit's cursor; use setTextCursor()
to update the visible cursor. setTextCursor()
.
public final Qt.TextInteractionFlags textInteractionFlags()
The default value depends on whether the QTextEdit is read-only or editable, and whether it is a QTextBrowser
or not.
public final java.lang.String toHtml()
toHtml()
returns the text of the text edit as html.
setHtml()
changes the text of the text edit. Any previous text is removed and the undo/redo history is cleared. The input text is interpreted as rich text in html format.
Note: It is the responsibility of the caller to make sure that the text is correctly decoded when a QString containing HTML is created and passed to setHtml()
.
By default, for a newly-created, empty document, this property contains text to describe an HTML 4.0 document with no body text.
plainText
.
public final java.lang.String toPlainText()
If the text edit has another content type, it will not be replaced by plain text if you call toPlainText()
.
By default, for an editor with no contents, this property contains an empty string.
html
.
public final void undo()
If there is no operation to undo, i.e. there is no undo step in the undo/redo history, nothing happens.
redo()
.
public final QTextOption.WrapMode wordWrapMode()
QTextOption::WrapAtWordBoundaryOrAnywhere
. QTextOption::WrapMode
.
public final void zoomIn()
zoomOut()
.
public final void zoomIn(int range)
zoomOut()
.
public final void zoomOut()
zoomIn()
.
public final void zoomOut(int range)
zoomIn()
.
protected boolean canInsertFromMimeData(QMimeData source)
Reimplement this function to enable drag and drop support for additional MIME types.
protected QMimeData createMimeDataFromSelection()
QMimeData
object; for example, when a drag and drop operation is started, or when data is copyied 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.
protected void insertFromMimeData(QMimeData source)
Reimplement this function to enable drag and drop support for additional MIME types.
public java.lang.Object loadResource(int type, QUrl name)
This function is an extension of QTextDocument::loadResource()
.
QTextDocument::loadResource()
.
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