QTextItem Class
The QTextItem class provides all the information required to draw text in a custom paint engine. More...
| Header: | #include <QTextItem> |
| CMake: | find_package(Qt6 REQUIRED COMPONENTS Gui) target_link_libraries(mytarget PRIVATE Qt6::Gui) |
| qmake: | QT += gui |
Public Types
| enum | RenderFlag { RightToLeft, Overline, Underline, StrikeOut } |
| flags | RenderFlags |
Public Functions
| qreal | ascent() const |
| qreal | descent() const |
| QFont | font() const |
| QTextItem::RenderFlags | renderFlags() const |
| QString | text() const |
| qreal | width() const |
Detailed Description
When you reimplement your own paint engine, you must reimplement QPaintEngine::drawTextItem(), a function that takes a QTextItem as one of its arguments.
Member Type Documentation
enum QTextItem::RenderFlag
flags QTextItem::RenderFlags
| Constant | Value | Description |
|---|---|---|
QTextItem::RightToLeft | 0x1 | Render the text from right to left. |
QTextItem::Overline | 0x10 | Paint a line above the text. |
QTextItem::Underline | 0x20 | Paint a line under the text. |
QTextItem::StrikeOut | 0x40 | Paint a line through the text. |
The RenderFlags type is a typedef for QFlags<RenderFlag>. It stores an OR combination of RenderFlag values.
Member Function Documentation
qreal QTextItem::ascent() const
Corresponds to the ascent of the piece of text that is drawn.
qreal QTextItem::descent() const
Corresponds to the descent of the piece of text that is drawn.
QFont QTextItem::font() const
Returns the font that should be used to draw the text.
QTextItem::RenderFlags QTextItem::renderFlags() const
Returns the render flags used.
QString QTextItem::text() const
Returns the text that should be drawn.
qreal QTextItem::width() const
Specifies the total width of the text to be drawn.