QTextOption Class
The QTextOption class provides a description of general rich text properties. More...
| Header: | #include <QTextOption> |
| qmake: | QT += gui |
Note: All functions in this class are reentrant.
Public Types
| struct | Tab |
| enum | Flag { IncludeTrailingSpaces, ShowTabsAndSpaces, ShowLineAndParagraphSeparators, ShowDocumentTerminator, AddSpaceForLineAndParagraphSeparators, SuppressColors } |
| flags | Flags |
| enum | TabType { LeftTab, RightTab, CenterTab, DelimiterTab } |
| enum | WrapMode { NoWrap, WordWrap, ManualWrap, WrapAnywhere, WrapAtWordBoundaryOrAnywhere } |
Public Functions
| QTextOption(const QTextOption &other) | |
| QTextOption(Qt::Alignment alignment) | |
| QTextOption() | |
| QTextOption & | operator=(const QTextOption &other) |
| ~QTextOption() | |
| Qt::Alignment | alignment() const |
| QTextOption::Flags | flags() const |
| void | setAlignment(Qt::Alignment alignment) |
| void | setFlags(QTextOption::Flags flags) |
| void | setTabArray(const QList<qreal> &tabStops) |
| void | setTabStopDistance(qreal tabStopDistance) |
| void | setTabs(const QList<QTextOption::Tab> &tabStops) |
| void | setTextDirection(Qt::LayoutDirection direction) |
| void | setUseDesignMetrics(bool enable) |
| void | setWrapMode(QTextOption::WrapMode mode) |
| QList<qreal> | tabArray() const |
| qreal | tabStopDistance() const |
| QList<QTextOption::Tab> | tabs() const |
| Qt::LayoutDirection | textDirection() const |
| bool | useDesignMetrics() const |
| QTextOption::WrapMode | wrapMode() const |
Detailed Description
QTextOption is used to encapsulate common rich text properties in a single object. It contains information about text alignment, layout direction, word wrapping, and other standard properties associated with text rendering and layout.
See also QTextEdit, QTextDocument, and QTextCursor.
Member Type Documentation
enum QTextOption::Flag
flags QTextOption::Flags
| Constant | Value | Description |
|---|---|---|
QTextOption::IncludeTrailingSpaces | 0x80000000 | When this option is set, QTextLine::naturalTextWidth() and naturalTextRect() will return a value that includes the width of trailing spaces in the text; otherwise this width is excluded. |
QTextOption::ShowTabsAndSpaces | 0x1 | Visualize spaces with little dots, and tabs with little arrows. Non-breaking spaces are shown differently to breaking spaces. |
QTextOption::ShowLineAndParagraphSeparators | 0x2 | Visualize line and paragraph separators with appropriate symbol characters. |
QTextOption::ShowDocumentTerminator | 0x10 | Visualize the end of the document with a section sign. This enum value was added in Qt 5.7. |
QTextOption::AddSpaceForLineAndParagraphSeparators | 0x4 | While determining the line-break positions take into account the space added for drawing a separator character. |
QTextOption::SuppressColors | 0x8 | Suppress all color changes in the character formats (except the main selection). |
The Flags type is a typedef for QFlags<Flag>. It stores an OR combination of Flag values.
enum QTextOption::TabType
This enum holds the different types of tabulator
| Constant | Value | Description |
|---|---|---|
QTextOption::LeftTab | 0 | A left-tab |
QTextOption::RightTab | 1 | A right-tab |
QTextOption::CenterTab | 2 | A centered-tab |
QTextOption::DelimiterTab | 3 | A tab stopping at a certain delimiter-character |
This enum was introduced or modified in Qt 4.4.
enum QTextOption::WrapMode
This enum describes how text is wrapped in a document.
| Constant | Value | Description |
|---|---|---|
QTextOption::NoWrap | 0 | Text is not wrapped at all. |
QTextOption::WordWrap | 1 | Text is wrapped at word boundaries. |
QTextOption::ManualWrap | 2 | Same as QTextOption::NoWrap |
QTextOption::WrapAnywhere | 3 | Text can be wrapped at any point on a line, even if it occurs in the middle of a word. |
QTextOption::WrapAtWordBoundaryOrAnywhere | 4 | If possible, wrapping occurs at a word boundary; otherwise it will occur at the appropriate point on the line, even in the middle of a word. |
Member Function Documentation
QTextOption::QTextOption(const QTextOption &other)
Construct a copy of the other text option.
QTextOption::QTextOption(Qt::Alignment alignment)
Constructs a text option with the given alignment for text. The word wrap property is set to QTextOption::WordWrap. The using of design metrics flag is set to false.
QTextOption::QTextOption()
Constructs a text option with default properties for text. The text alignment property is set to Qt::AlignLeft. The word wrap property is set to QTextOption::WordWrap. The using of design metrics flag is set to false.
QTextOption &QTextOption::operator=(const QTextOption &other)
Returns true if the text option is the same as the other text option; otherwise returns false.
QTextOption::~QTextOption()
Destroys the text option.
Qt::Alignment QTextOption::alignment() const
Returns the text alignment defined by the option.
See also setAlignment().
QTextOption::Flags QTextOption::flags() const
Returns the flags associated with the option.
See also setFlags().
void QTextOption::setAlignment(Qt::Alignment alignment)
Sets the option's text alignment to the specified alignment.
See also alignment().
void QTextOption::setFlags(QTextOption::Flags flags)
Sets the flags associated with the option to the given flags.
See also flags().
void QTextOption::setTabArray(const QList<qreal> &tabStops)
Sets the tab positions for the text layout to those specified by tabStops.
See also tabArray(), setTabStopDistance(), and setTabs().
void QTextOption::setTabStopDistance(qreal tabStopDistance)
Sets the default distance in device units between tab stops to the value specified by tabStopDistance.
This function was introduced in Qt 5.10.
See also tabStopDistance(), setTabArray(), setTabs(), and tabs().
void QTextOption::setTabs(const QList<QTextOption::Tab> &tabStops)
Sets the tab positions for the text layout to those specified by tabStops.
This function was introduced in Qt 4.4.
See also tabs() and tabStop().
void QTextOption::setTextDirection(Qt::LayoutDirection direction)
Sets the direction of the text layout defined by the option to the given direction.
See also textDirection().
void QTextOption::setUseDesignMetrics(bool enable)
If enable is true then the layout will use design metrics; otherwise it will use the metrics of the paint device (which is the default behavior).
See also useDesignMetrics().
void QTextOption::setWrapMode(QTextOption::WrapMode mode)
Sets the option's text wrap mode to the given mode.
See also wrapMode().
QList<qreal> QTextOption::tabArray() const
Returns a list of tab positions defined for the text layout.
See also setTabArray() and tabStop().
qreal QTextOption::tabStopDistance() const
Returns the distance in device units between tab stops.
This function was introduced in Qt 5.10.
See also setTabStopDistance(), tabArray(), setTabs(), and tabs().
QList<QTextOption::Tab> QTextOption::tabs() const
Returns a list of tab positions defined for the text layout.
This function was introduced in Qt 4.4.
See also tabStopDistance(), setTabs(), and setTabStop().
Qt::LayoutDirection QTextOption::textDirection() const
Returns the direction of the text layout defined by the option.
See also setTextDirection().
bool QTextOption::useDesignMetrics() const
Returns true if the layout uses design rather than device metrics; otherwise returns false.
See also setUseDesignMetrics().
QTextOption::WrapMode QTextOption::wrapMode() const
Returns the text wrap mode defined by the option.
See also setWrapMode().
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