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-rw-r--r--src/gui/accessible/qaccessible2.cpp288
1 files changed, 171 insertions, 117 deletions
diff --git a/src/gui/accessible/qaccessible2.cpp b/src/gui/accessible/qaccessible2.cpp
index e3402ef2e5..7f871f9c5a 100644
--- a/src/gui/accessible/qaccessible2.cpp
+++ b/src/gui/accessible/qaccessible2.cpp
@@ -134,19 +134,184 @@ QT_BEGIN_NAMESPACE
*/
/*!
- \fn QString QAccessibleTextInterface::textBeforeOffset (int offset, QAccessible2::BoundaryType boundaryType,
- int *startOffset, int *endOffset) const
+ Returns the text item of type \a boundaryType that is close to offset \a offset
+ and sets \a startOffset and \a endOffset values to the start and end positions
+ of that item; returns an empty string if there is no such an item.
+ Sets \a startOffset and \a endOffset values to -1 on error.
*/
+QString QAccessibleTextInterface::textBeforeOffset(int offset, QAccessible2::BoundaryType boundaryType,
+ int *startOffset, int *endOffset) const
+{
+ const QString txt = text(0, characterCount());
+
+ if (txt.isEmpty() || offset < 0 || offset > txt.length()) {
+ *startOffset = *endOffset = -1;
+ return QString();
+ }
+ if (offset == 0) {
+ *startOffset = *endOffset = offset;
+ return QString();
+ }
+
+ QTextBoundaryFinder::BoundaryType type;
+ switch (boundaryType) {
+ case QAccessible2::CharBoundary:
+ type = QTextBoundaryFinder::Grapheme;
+ break;
+ case QAccessible2::WordBoundary:
+ type = QTextBoundaryFinder::Word;
+ break;
+ case QAccessible2::SentenceBoundary:
+ type = QTextBoundaryFinder::Sentence;
+ break;
+ default:
+ // in any other case return the whole line
+ *startOffset = 0;
+ *endOffset = txt.length();
+ return txt;
+ }
+
+ // keep behavior in sync with QTextCursor::movePosition()!
+
+ QTextBoundaryFinder boundary(type, txt);
+ boundary.setPosition(offset);
+
+ do {
+ if ((boundary.boundaryReasons() & (QTextBoundaryFinder::StartOfItem | QTextBoundaryFinder::EndOfItem)))
+ break;
+ } while (boundary.toPreviousBoundary() > 0);
+ Q_ASSERT(boundary.position() >= 0);
+ *endOffset = boundary.position();
+
+ while (boundary.toPreviousBoundary() > 0) {
+ if ((boundary.boundaryReasons() & (QTextBoundaryFinder::StartOfItem | QTextBoundaryFinder::EndOfItem)))
+ break;
+ }
+ Q_ASSERT(boundary.position() >= 0);
+ *startOffset = boundary.position();
+
+ return txt.mid(*startOffset, *endOffset - *startOffset);
+}
/*!
- \fn QString QAccessibleTextInterface::textAfterOffset(int offset, QAccessible2::BoundaryType boundaryType,
- int *startOffset, int *endOffset) const
+ Returns the text item of type \a boundaryType that is right after offset \a offset
+ and sets \a startOffset and \a endOffset values to the start and end positions
+ of that item; returns an empty string if there is no such an item.
+ Sets \a startOffset and \a endOffset values to -1 on error.
*/
+QString QAccessibleTextInterface::textAfterOffset(int offset, QAccessible2::BoundaryType boundaryType,
+ int *startOffset, int *endOffset) const
+{
+ const QString txt = text(0, characterCount());
+
+ if (txt.isEmpty() || offset < 0 || offset > txt.length()) {
+ *startOffset = *endOffset = -1;
+ return QString();
+ }
+ if (offset == txt.length()) {
+ *startOffset = *endOffset = offset;
+ return QString();
+ }
+
+ QTextBoundaryFinder::BoundaryType type;
+ switch (boundaryType) {
+ case QAccessible2::CharBoundary:
+ type = QTextBoundaryFinder::Grapheme;
+ break;
+ case QAccessible2::WordBoundary:
+ type = QTextBoundaryFinder::Word;
+ break;
+ case QAccessible2::SentenceBoundary:
+ type = QTextBoundaryFinder::Sentence;
+ break;
+ default:
+ // in any other case return the whole line
+ *startOffset = 0;
+ *endOffset = txt.length();
+ return txt;
+ }
+
+ // keep behavior in sync with QTextCursor::movePosition()!
+
+ QTextBoundaryFinder boundary(type, txt);
+ boundary.setPosition(offset);
+
+ while (boundary.toNextBoundary() < txt.length()) {
+ if ((boundary.boundaryReasons() & (QTextBoundaryFinder::StartOfItem | QTextBoundaryFinder::EndOfItem)))
+ break;
+ }
+ Q_ASSERT(boundary.position() <= txt.length());
+ *startOffset = boundary.position();
+
+ while (boundary.toNextBoundary() < txt.length()) {
+ if ((boundary.boundaryReasons() & (QTextBoundaryFinder::StartOfItem | QTextBoundaryFinder::EndOfItem)))
+ break;
+ }
+ Q_ASSERT(boundary.position() <= txt.length());
+ *endOffset = boundary.position();
+
+ return txt.mid(*startOffset, *endOffset - *startOffset);
+}
/*!
- \fn QString QAccessibleTextInterface::textAtOffset(int offset, QAccessible2::BoundaryType boundaryType,
- int *startOffset, int *endOffset) const
+ Returns the text item of type \a boundaryType at offset \a offset
+ and sets \a startOffset and \a endOffset values to the start and end positions
+ of that item; returns an empty string if there is no such an item.
+ Sets \a startOffset and \a endOffset values to -1 on error.
*/
+QString QAccessibleTextInterface::textAtOffset(int offset, QAccessible2::BoundaryType boundaryType,
+ int *startOffset, int *endOffset) const
+{
+ const QString txt = text(0, characterCount());
+
+ if (txt.isEmpty() || offset < 0 || offset > txt.length()) {
+ *startOffset = *endOffset = -1;
+ return QString();
+ }
+ if (offset == txt.length()) {
+ *startOffset = *endOffset = offset;
+ return QString();
+ }
+
+ QTextBoundaryFinder::BoundaryType type;
+ switch (boundaryType) {
+ case QAccessible2::CharBoundary:
+ type = QTextBoundaryFinder::Grapheme;
+ break;
+ case QAccessible2::WordBoundary:
+ type = QTextBoundaryFinder::Word;
+ break;
+ case QAccessible2::SentenceBoundary:
+ type = QTextBoundaryFinder::Sentence;
+ break;
+ default:
+ // in any other case return the whole line
+ *startOffset = 0;
+ *endOffset = txt.length();
+ return txt;
+ }
+
+ // keep behavior in sync with QTextCursor::movePosition()!
+
+ QTextBoundaryFinder boundary(type, txt);
+ boundary.setPosition(offset);
+
+ do {
+ if ((boundary.boundaryReasons() & (QTextBoundaryFinder::StartOfItem | QTextBoundaryFinder::EndOfItem)))
+ break;
+ } while (boundary.toPreviousBoundary() > 0);
+ Q_ASSERT(boundary.position() >= 0);
+ *startOffset = boundary.position();
+
+ while (boundary.toNextBoundary() < txt.length()) {
+ if ((boundary.boundaryReasons() & (QTextBoundaryFinder::StartOfItem | QTextBoundaryFinder::EndOfItem)))
+ break;
+ }
+ Q_ASSERT(boundary.position() <= txt.length());
+ *endOffset = boundary.position();
+
+ return txt.mid(*startOffset, *endOffset - *startOffset);
+}
/*!
\fn void QAccessibleTextInterface::removeSelection(int selectionIndex)
@@ -512,117 +677,6 @@ const QString &QAccessibleActionInterface::toggleAction()
return accessibleActionStrings()->toggleAction;
}
-
-/*!
- \internal
-*/
-QString Q_GUI_EXPORT qTextBeforeOffsetFromString(int offset, QAccessible2::BoundaryType boundaryType,
- int *startOffset, int *endOffset, const QString& text)
-{
- QTextBoundaryFinder::BoundaryType type;
- switch (boundaryType) {
- case QAccessible2::CharBoundary:
- type = QTextBoundaryFinder::Grapheme;
- break;
- case QAccessible2::WordBoundary:
- type = QTextBoundaryFinder::Word;
- break;
- case QAccessible2::SentenceBoundary:
- type = QTextBoundaryFinder::Sentence;
- break;
- default:
- // in any other case return the whole line
- *startOffset = 0;
- *endOffset = text.length();
- return text;
- }
-
- QTextBoundaryFinder boundary(type, text);
- boundary.setPosition(offset);
-
- if (!boundary.isAtBoundary()) {
- boundary.toPreviousBoundary();
- }
- boundary.toPreviousBoundary();
- *startOffset = boundary.position();
- boundary.toNextBoundary();
- *endOffset = boundary.position();
-
- return text.mid(*startOffset, *endOffset - *startOffset);
-}
-
-/*!
- \internal
-*/
-QString Q_GUI_EXPORT qTextAfterOffsetFromString(int offset, QAccessible2::BoundaryType boundaryType,
- int *startOffset, int *endOffset, const QString& text)
-{
- QTextBoundaryFinder::BoundaryType type;
- switch (boundaryType) {
- case QAccessible2::CharBoundary:
- type = QTextBoundaryFinder::Grapheme;
- break;
- case QAccessible2::WordBoundary:
- type = QTextBoundaryFinder::Word;
- break;
- case QAccessible2::SentenceBoundary:
- type = QTextBoundaryFinder::Sentence;
- break;
- default:
- // in any other case return the whole line
- *startOffset = 0;
- *endOffset = text.length();
- return text;
- }
-
- QTextBoundaryFinder boundary(type, text);
- boundary.setPosition(offset);
-
- boundary.toNextBoundary();
- *startOffset = boundary.position();
- boundary.toNextBoundary();
- *endOffset = boundary.position();
-
- return text.mid(*startOffset, *endOffset - *startOffset);
-}
-
-/*!
- \internal
-*/
-QString Q_GUI_EXPORT qTextAtOffsetFromString(int offset, QAccessible2::BoundaryType boundaryType,
- int *startOffset, int *endOffset, const QString& text)
-{
- QTextBoundaryFinder::BoundaryType type;
- switch (boundaryType) {
- case QAccessible2::CharBoundary:
- type = QTextBoundaryFinder::Grapheme;
- break;
- case QAccessible2::WordBoundary:
- type = QTextBoundaryFinder::Word;
- break;
- case QAccessible2::SentenceBoundary:
- type = QTextBoundaryFinder::Sentence;
- break;
- default:
- // in any other case return the whole line
- *startOffset = 0;
- *endOffset = text.length();
- return text;
- }
-
- QTextBoundaryFinder boundary(type, text);
- boundary.setPosition(offset);
-
- if (!boundary.isAtBoundary()) {
- boundary.toPreviousBoundary();
- }
- *startOffset = boundary.position();
- boundary.toNextBoundary();
- *endOffset = boundary.position();
-
- return text.mid(*startOffset, *endOffset - *startOffset);
-}
-
QT_END_NAMESPACE
#endif // QT_NO_ACCESSIBILITY
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-25 13:58:34 +0000