QTextFrame Class ReferenceThe QTextFrame class represents a frame in a QTextDocument. Далее... #include <QTextFrame> Inherits: QTextObject. Inherited by: QTextTable. Замечание: Все функции в этом классе реентерабельны. Открытые типы
Открытые функции
Дополнительные унаследованные члены
Подробное описаниеThe QTextFrame class represents a frame in a QTextDocument. Text frames provide structure for the text in a document. They are used as generic containers for other document elements. Frames are usually created by using QTextCursor::insertFrame(). Frames can be used to create hierarchical structures in rich text documents. Each document has a root frame (QTextDocument::rootFrame()), and each frame beneath the root frame has a parent frame and a (possibly empty) list of child frames. The parent frame can be found with parentFrame(), and the childFrames() function provides a list of child frames. Each frame contains at least one text block to enable text cursors to insert new document elements within. As a result, the QTextFrame::iterator class is used to traverse both the blocks and child frames within a given frame. The first and last child elements in the frame can be found with begin() and end(). A frame also has a format (specified using QTextFrameFormat) which can be set with setFormat() and read with format(). Text cursors can be obtained that point to the first and last valid cursor positions within a frame; use the firstCursorPosition() and lastCursorPosition() functions for this. The frame's extent in the document can be found with firstPosition() and lastPosition(). You can iterate over a frame's contents using the QTextFrame::iterator class: this provides read-only access to its internal list of text blocks and child frames. See also QTextCursor and QTextDocument. Описание функций-членовQTextFrame::QTextFrame ( QTextDocument * document )Creates a new empty frame for the text document. QTextFrame::~QTextFrame ()Destroys the frame, and removes it from the document's layout. iterator QTextFrame::begin () constReturns an iterator pointing to the first document element inside the frame. Please see the document STL-style-Iterators for more information. See also end(). QList<QTextFrame *> QTextFrame::childFrames () constReturns a (possibly empty) list of the frame's child frames. See also parentFrame(). iterator QTextFrame::end () constReturns an iterator pointing to the position past the last document element inside the frame. Please see the document STL-Style Iterators for more information. See also begin(). QTextCursor QTextFrame::firstCursorPosition () constReturns the first cursor position inside the frame. See also lastCursorPosition(), firstPosition(), and lastPosition(). int QTextFrame::firstPosition () constReturns the first document position inside the frame. See also lastPosition(), firstCursorPosition(), and lastCursorPosition(). QTextFrameFormat QTextFrame::frameFormat () constReturns the frame's format. See also setFrameFormat(). QTextCursor QTextFrame::lastCursorPosition () constReturns the last cursor position inside the frame. See also firstCursorPosition(), firstPosition(), and lastPosition(). int QTextFrame::lastPosition () constReturns the last document position inside the frame. See also firstPosition(), firstCursorPosition(), and lastCursorPosition(). QTextFrame * QTextFrame::parentFrame () constReturns the frame's parent frame. If the frame is the root frame of a document, this will return 0. See also childFrames() and QTextDocument::rootFrame(). void QTextFrame::setFrameFormat ( const QTextFrameFormat & format )Sets the frame's format. See also frameFormat(). |
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