| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
|---|
| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
|---|
| 3 | |
|---|
| 4 | #ifndef QTEXTDOCUMENTLAYOUT_P_H |
|---|
| 5 | #define QTEXTDOCUMENTLAYOUT_P_H |
|---|
| 6 | |
|---|
| 7 | // |
|---|
| 8 | // W A R N I N G |
|---|
| 9 | // ------------- |
|---|
| 10 | // |
|---|
| 11 | // This file is not part of the Qt API. It exists purely as an |
|---|
| 12 | // implementation detail. This header file may change from version to |
|---|
| 13 | // version without notice, or even be removed. |
|---|
| 14 | // |
|---|
| 15 | // We mean it. |
|---|
| 16 | // |
|---|
| 17 | |
|---|
| 18 | #include <QtGui/private/qtguiglobal_p.h> |
|---|
| 19 | #include "QtGui/qabstracttextdocumentlayout.h" |
|---|
| 20 | #include "QtGui/qtextoption.h" |
|---|
| 21 | #include "QtGui/qtextobject.h" |
|---|
| 22 | |
|---|
| 23 | QT_BEGIN_NAMESPACE |
|---|
| 24 | |
|---|
| 25 | class QTextListFormat; |
|---|
| 26 | class QTextTableCell; |
|---|
| 27 | class QTextDocumentLayoutPrivate; |
|---|
| 28 | |
|---|
| 29 | class Q_GUI_EXPORT QTextDocumentLayout : public QAbstractTextDocumentLayout |
|---|
| 30 | { |
|---|
| 31 | Q_DECLARE_PRIVATE(QTextDocumentLayout) |
|---|
| 32 | Q_OBJECT |
|---|
| 33 | Q_PROPERTY(int cursorWidth READ cursorWidth WRITE setCursorWidth) |
|---|
| 34 | Q_PROPERTY(qreal idealWidth READ idealWidth) |
|---|
| 35 | Q_PROPERTY(bool contentHasAlignment READ contentHasAlignment) |
|---|
| 36 | public: |
|---|
| 37 | explicit QTextDocumentLayout(QTextDocument *doc); |
|---|
| 38 | |
|---|
| 39 | // from the abstract layout |
|---|
| 40 | void draw(QPainter *painter, const PaintContext &context) override; |
|---|
| 41 | int hitTest(const QPointF &point, Qt::HitTestAccuracy accuracy) const override; |
|---|
| 42 | |
|---|
| 43 | int pageCount() const override; |
|---|
| 44 | QSizeF documentSize() const override; |
|---|
| 45 | |
|---|
| 46 | void setCursorWidth(int width); |
|---|
| 47 | int cursorWidth() const; |
|---|
| 48 | |
|---|
| 49 | // internal, to support the ugly FixedColumnWidth wordwrap mode in QTextEdit |
|---|
| 50 | void setFixedColumnWidth(int width); |
|---|
| 51 | |
|---|
| 52 | // internal for QTextEdit's NoWrap mode |
|---|
| 53 | void setViewport(const QRectF &viewport); |
|---|
| 54 | |
|---|
| 55 | virtual QRectF frameBoundingRect(QTextFrame *frame) const override; |
|---|
| 56 | virtual QRectF blockBoundingRect(const QTextBlock &block) const override; |
|---|
| 57 | QRectF tableBoundingRect(QTextTable *table) const; |
|---|
| 58 | QRectF tableCellBoundingRect(QTextTable *table, const QTextTableCell &cell) const; |
|---|
| 59 | |
|---|
| 60 | // #### |
|---|
| 61 | int layoutStatus() const; |
|---|
| 62 | int dynamicPageCount() const; |
|---|
| 63 | QSizeF dynamicDocumentSize() const; |
|---|
| 64 | void ensureLayouted(qreal); |
|---|
| 65 | |
|---|
| 66 | qreal idealWidth() const; |
|---|
| 67 | |
|---|
| 68 | bool contentHasAlignment() const; |
|---|
| 69 | |
|---|
| 70 | protected: |
|---|
| 71 | void documentChanged(int from, int oldLength, int length) override; |
|---|
| 72 | void resizeInlineObject(QTextInlineObject item, int posInDocument, const QTextFormat &format) override; |
|---|
| 73 | void positionInlineObject(QTextInlineObject item, int posInDocument, const QTextFormat &format) override; |
|---|
| 74 | void drawInlineObject(QPainter *p, const QRectF &rect, QTextInlineObject item, |
|---|
| 75 | int posInDocument, const QTextFormat &format) override; |
|---|
| 76 | virtual void timerEvent(QTimerEvent *e) override; |
|---|
| 77 | private: |
|---|
| 78 | QRectF doLayout(int from, int oldLength, int length); |
|---|
| 79 | void layoutFinished(); |
|---|
| 80 | }; |
|---|
| 81 | |
|---|
| 82 | QT_END_NAMESPACE |
|---|
| 83 | |
|---|
| 84 | #endif // QTEXTDOCUMENTLAYOUT_P_H |
|---|
| 85 | |
|---|
