diff options
Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativetextinput.cpp')
| -rw-r--r-- | src/declarative/graphicsitems/qdeclarativetextinput.cpp | 259 |
1 files changed, 211 insertions, 48 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativetextinput.cpp b/src/declarative/graphicsitems/qdeclarativetextinput.cpp index 78f34db..af18c90 100644 --- a/src/declarative/graphicsitems/qdeclarativetextinput.cpp +++ b/src/declarative/graphicsitems/qdeclarativetextinput.cpp @@ -326,9 +326,12 @@ void QDeclarativeTextInput::setSelectedTextColor(const QColor &color) /*! \qmlproperty enumeration TextInput::horizontalAlignment + \qmlproperty enumeration TextInput::effectiveHorizontalAlignment Sets the horizontal alignment of the text within the TextInput item's - width and height. By default, the text is left aligned. + width and height. By default, the text alignment follows the natural alignment + of the text, for example text that is read from left to right will be aligned to + the left. TextInput does not have vertical alignment, as the natural height is exactly the height of the single line of text. If you set the height @@ -338,6 +341,11 @@ void QDeclarativeTextInput::setSelectedTextColor(const QColor &color) The valid values for \c horizontalAlignment are \c TextInput.AlignLeft, \c TextInput.AlignRight and \c TextInput.AlignHCenter. + + When using the attached property LayoutMirroring::enabled to mirror application + layouts, the horizontal alignment of text will also be mirrored. However, the property + \c horizontalAlignment will remain unchanged. To query the effective horizontal alignment + of TextInput, use the read-only property \c effectiveHorizontalAlignment. */ QDeclarativeTextInput::HAlignment QDeclarativeTextInput::hAlign() const { @@ -348,12 +356,78 @@ QDeclarativeTextInput::HAlignment QDeclarativeTextInput::hAlign() const void QDeclarativeTextInput::setHAlign(HAlignment align) { Q_D(QDeclarativeTextInput); - if(align == d->hAlign) - return; - d->hAlign = align; - updateRect(); - d->updateHorizontalScroll(); - emit horizontalAlignmentChanged(d->hAlign); + bool forceAlign = d->hAlignImplicit && d->effectiveLayoutMirror; + d->hAlignImplicit = false; + if (d->setHAlign(align, forceAlign) && isComponentComplete()) { + updateRect(); + d->updateHorizontalScroll(); + } +} + +void QDeclarativeTextInput::resetHAlign() +{ + Q_D(QDeclarativeTextInput); + d->hAlignImplicit = true; + if (d->determineHorizontalAlignment() && isComponentComplete()) { + updateRect(); + d->updateHorizontalScroll(); + } +} + +QDeclarativeTextInput::HAlignment QDeclarativeTextInput::effectiveHAlign() const +{ + Q_D(const QDeclarativeTextInput); + QDeclarativeTextInput::HAlignment effectiveAlignment = d->hAlign; + if (!d->hAlignImplicit && d->effectiveLayoutMirror) { + switch (d->hAlign) { + case QDeclarativeTextInput::AlignLeft: + effectiveAlignment = QDeclarativeTextInput::AlignRight; + break; + case QDeclarativeTextInput::AlignRight: + effectiveAlignment = QDeclarativeTextInput::AlignLeft; + break; + default: + break; + } + } + return effectiveAlignment; +} + +bool QDeclarativeTextInputPrivate::setHAlign(QDeclarativeTextInput::HAlignment alignment, bool forceAlign) +{ + Q_Q(QDeclarativeTextInput); + if ((hAlign != alignment || forceAlign) && alignment <= QDeclarativeTextInput::AlignHCenter) { // justify not supported + QDeclarativeTextInput::HAlignment oldEffectiveHAlign = q->effectiveHAlign(); + hAlign = alignment; + emit q->horizontalAlignmentChanged(alignment); + if (oldEffectiveHAlign != q->effectiveHAlign()) + emit q->effectiveHorizontalAlignmentChanged(); + return true; + } + return false; +} + +bool QDeclarativeTextInputPrivate::determineHorizontalAlignment() +{ + if (hAlignImplicit) { + // if no explicit alignment has been set, follow the natural layout direction of the text + QString text = control->text(); + bool isRightToLeft = text.isEmpty() ? QApplication::keyboardInputDirection() == Qt::RightToLeft : text.isRightToLeft(); + return setHAlign(isRightToLeft ? QDeclarativeTextInput::AlignRight : QDeclarativeTextInput::AlignLeft); + } + return false; +} + +void QDeclarativeTextInputPrivate::mirrorChange() +{ + Q_Q(QDeclarativeTextInput); + if (q->isComponentComplete()) { + if (!hAlignImplicit && (hAlign == QDeclarativeTextInput::AlignRight || hAlign == QDeclarativeTextInput::AlignLeft)) { + q->updateRect(); + updateHorizontalScroll(); + emit q->effectiveHorizontalAlignmentChanged(); + } + } } /*! @@ -482,6 +556,7 @@ QRect QDeclarativeTextInput::cursorRectangle() const Q_D(const QDeclarativeTextInput); QRect r = d->control->cursorRect(); r.setHeight(r.height()-1); // Make consistent with TextEdit (QLineControl inexplicably adds 1) + r.moveLeft(r.x() - d->hscroll); return r; } @@ -921,14 +996,22 @@ void QDeclarativeTextInput::moveCursor() QRectF QDeclarativeTextInput::positionToRectangle(int pos) const { Q_D(const QDeclarativeTextInput); + if (pos > d->control->cursorPosition()) + pos += d->control->preeditAreaText().length(); return QRectF(d->control->cursorToX(pos)-d->hscroll, 0.0, d->control->cursorWidth(), cursorRectangle().height()); } +int QDeclarativeTextInput::positionAt(int x) const +{ + return positionAt(x, CursorBetweenCharacters); +} + /*! - \qmlmethod int TextInput::positionAt(int x) + \qmlmethod int TextInput::positionAt(int x, CursorPosition position = CursorBetweenCharacters) + \since Quick 1.1 This function returns the character position at x pixels from the left of the textInput. Position 0 is before the @@ -937,11 +1020,26 @@ QRectF QDeclarativeTextInput::positionToRectangle(int pos) const This means that for all x values before the first character this function returns 0, and for all x values after the last character this function returns text.length. + + The cursor position type specifies how the cursor position should be resolved. + + \list + \o TextInput.CursorBetweenCharacters - Returns the position between characters that is nearest x. + \o TextInput.CursorOnCharacter - Returns the position before the character that is nearest x. + \endlist */ -int QDeclarativeTextInput::positionAt(int x) const +int QDeclarativeTextInput::positionAt(int x, CursorPosition position) const { Q_D(const QDeclarativeTextInput); - return d->control->xToPos(x + d->hscroll); + int pos = d->control->xToPos(x + d->hscroll, QTextLine::CursorPosition(position)); + const int cursor = d->control->cursor(); + if (pos > cursor) { + const int preeditLength = d->control->preeditAreaText().length(); + pos = pos > cursor + preeditLength + ? pos - preeditLength + : cursor; + } + return pos; } void QDeclarativeTextInputPrivate::focusChanged(bool hasFocus) @@ -962,16 +1060,21 @@ void QDeclarativeTextInput::keyPressEvent(QKeyEvent* ev) keyPressPreHandler(ev); if (ev->isAccepted()) return; - if (((ev->key() == Qt::Key_Up || ev->key() == Qt::Key_Down) && ev->modifiers() == Qt::NoModifier) // Don't allow MacOSX up/down support, and we don't allow a completer. - || (((d->control->cursor() == 0 && ev->key() == Qt::Key_Left) - || (d->control->cursor() == d->control->text().length() - && ev->key() == Qt::Key_Right)) - && (d->lastSelectionStart == d->lastSelectionEnd))) - { - //ignore when moving off the end - //unless there is a selection, because then moving will do something (deselect) + + // Don't allow MacOSX up/down support, and we don't allow a completer. + bool ignore = (ev->key() == Qt::Key_Up || ev->key() == Qt::Key_Down) && ev->modifiers() == Qt::NoModifier; + if (!ignore && (d->lastSelectionStart == d->lastSelectionEnd) && (ev->key() == Qt::Key_Right || ev->key() == Qt::Key_Left)) { + // Ignore when moving off the end unless there is a selection, + // because then moving will do something (deselect). + int cursorPosition = d->control->cursor(); + if (cursorPosition == 0) + ignore = ev->key() == (d->control->layoutDirection() == Qt::LeftToRight ? Qt::Key_Left : Qt::Key_Right); + if (cursorPosition == d->control->text().length()) + ignore = ev->key() == (d->control->layoutDirection() == Qt::LeftToRight ? Qt::Key_Right : Qt::Key_Left); + } + if (ignore) { ev->ignore(); - }else{ + } else { d->control->processKeyEvent(ev); } if (!ev->isAccepted()) @@ -982,18 +1085,22 @@ void QDeclarativeTextInput::inputMethodEvent(QInputMethodEvent *ev) { Q_D(QDeclarativeTextInput); ev->ignore(); + const bool wasComposing = d->control->preeditAreaText().length() > 0; inputMethodPreHandler(ev); - if (ev->isAccepted()) - return; - if (d->control->isReadOnly()) { - ev->ignore(); - } else { - d->control->processInputMethodEvent(ev); - updateSize(); - d->updateHorizontalScroll(); + if (!ev->isAccepted()) { + if (d->control->isReadOnly()) { + ev->ignore(); + } else { + d->control->processInputMethodEvent(ev); + updateSize(); + d->updateHorizontalScroll(); + } } if (!ev->isAccepted()) QDeclarativePaintedItem::inputMethodEvent(ev); + + if (wasComposing != (d->control->preeditAreaText().length() > 0)) + emit inputMethodComposingChanged(); } /*! @@ -1047,7 +1154,7 @@ void QDeclarativeTextInput::mouseMoveEvent(QGraphicsSceneMouseEvent *event) { Q_D(QDeclarativeTextInput); if (d->sendMouseEventToInputContext(event, QEvent::MouseMove)) - event->setAccepted(true); + return; if (d->selectByMouse) { if (qAbs(int(event->pos().x() - d->pressPos.x())) > QApplication::startDragDistance()) setKeepMouseGrab(true); @@ -1176,11 +1283,12 @@ void QDeclarativeTextInputPrivate::updateHorizontalScroll() int cix = qRound(control->cursorToX(control->cursor() + preeditLength)); QRect br(q->boundingRect().toRect()); int widthUsed = calculateTextWidth(); - Qt::Alignment va = QStyle::visualAlignment(control->layoutDirection(), QFlag(Qt::Alignment(hAlign))); + + QDeclarativeTextInput::HAlignment effectiveHAlign = q->effectiveHAlign(); if (autoScroll) { if (widthUsed <= br.width()) { // text fits in br; use hscroll for alignment - switch (va & ~(Qt::AlignAbsolute|Qt::AlignVertical_Mask)) { + switch (effectiveHAlign & ~(Qt::AlignAbsolute|Qt::AlignVertical_Mask)) { case Qt::AlignRight: hscroll = widthUsed - br.width() - 1; break; @@ -1212,11 +1320,11 @@ void QDeclarativeTextInputPrivate::updateHorizontalScroll() hscroll = cix; } } else { - switch (va & ~(Qt::AlignAbsolute|Qt::AlignVertical_Mask)) { - case Qt::AlignRight: + switch (effectiveHAlign) { + case QDeclarativeTextInput::AlignRight: hscroll = q->width() - widthUsed; break; - case Qt::AlignHCenter: + case QDeclarativeTextInput::AlignHCenter: hscroll = (q->width() - widthUsed) / 2; break; default: @@ -1260,13 +1368,16 @@ QVariant QDeclarativeTextInput::inputMethodQuery(Qt::InputMethodQuery property) Q_D(const QDeclarativeTextInput); switch(property) { case Qt::ImMicroFocus: - return d->control->cursorRect(); + return cursorRectangle(); case Qt::ImFont: return font(); case Qt::ImCursorPosition: return QVariant(d->control->cursor()); case Qt::ImSurroundingText: - return QVariant(text()); + if (d->control->echoMode() == PasswordEchoOnEdit && !d->control->passwordEchoEditing()) + return QVariant(displayText()); + else + return QVariant(text()); case Qt::ImCurrentSelection: return QVariant(selectedText()); case Qt::ImMaximumTextLength: @@ -1285,6 +1396,7 @@ QVariant QDeclarativeTextInput::inputMethodQuery(Qt::InputMethodQuery property) /*! \qmlmethod void TextInput::deselect() + \since Quick 1.1 Removes active text selection. */ @@ -1305,6 +1417,23 @@ void QDeclarativeTextInput::selectAll() d->control->setSelection(0, d->control->text().length()); } +/*! + \qmlmethod void TextInput::isRightToLeft(int start, int end) + + Returns true if the natural reading direction of the editor text + found between positions \a start and \a end is right to left. +*/ +bool QDeclarativeTextInput::isRightToLeft(int start, int end) +{ + Q_D(QDeclarativeTextInput); + if (start > end) { + qmlInfo(this) << "isRightToLeft(start, end) called with the end property being smaller than the start."; + return false; + } else { + return d->control->text().mid(start, end - start).isRightToLeft(); + } +} + #ifndef QT_NO_CLIPBOARD /*! \qmlmethod TextInput::cut() @@ -1466,6 +1595,13 @@ void QDeclarativeTextInput::setMouseSelectionMode(SelectionMode mode) } } +/*! + \qmlproperty bool TextInput::canPaste + \since QtQuick 1.1 + + Returns true if the TextInput is writable and the content of the clipboard is + suitable for pasting into the TextEdit. +*/ bool QDeclarativeTextInput::canPaste() const { Q_D(const QDeclarativeTextInput); @@ -1534,38 +1670,41 @@ void QDeclarativeTextInput::moveCursorSelection(int pos, SelectionMode mode) anchor = d->control->selectionStart(); if (anchor < pos || (anchor == pos && cursor < pos)) { - QTextBoundaryFinder finder(QTextBoundaryFinder::Word, d->control->text()); + const QString text = d->control->text(); + QTextBoundaryFinder finder(QTextBoundaryFinder::Word, text); finder.setPosition(anchor); const QTextBoundaryFinder::BoundaryReasons reasons = finder.boundaryReasons(); - if (!(reasons & QTextBoundaryFinder::StartWord) - || ((reasons & QTextBoundaryFinder::EndWord) && anchor > cursor)) { + if (anchor < text.length() && (!(reasons & QTextBoundaryFinder::StartWord) + || ((reasons & QTextBoundaryFinder::EndWord) && anchor > cursor))) { finder.toPreviousBoundary(); } - anchor = finder.position(); + anchor = finder.position() != -1 ? finder.position() : 0; finder.setPosition(pos); - if (!finder.isAtBoundary()) + if (pos > 0 && !finder.boundaryReasons()) finder.toNextBoundary(); + const int cursor = finder.position() != -1 ? finder.position() : text.length(); - d->control->setSelection(anchor, finder.position() - anchor); + d->control->setSelection(anchor, cursor - anchor); } else if (anchor > pos || (anchor == pos && cursor > pos)) { - QTextBoundaryFinder finder(QTextBoundaryFinder::Word, d->control->text()); + const QString text = d->control->text(); + QTextBoundaryFinder finder(QTextBoundaryFinder::Word, text); finder.setPosition(anchor); const QTextBoundaryFinder::BoundaryReasons reasons = finder.boundaryReasons(); - if (!(reasons & QTextBoundaryFinder::EndWord) - || ((reasons & QTextBoundaryFinder::StartWord) && anchor < cursor)) { + if (anchor > 0 && (!(reasons & QTextBoundaryFinder::EndWord) + || ((reasons & QTextBoundaryFinder::StartWord) && anchor < cursor))) { finder.toNextBoundary(); } - - anchor = finder.position(); + anchor = finder.position() != -1 ? finder.position() : text.length(); finder.setPosition(pos); - if (!finder.isAtBoundary()) + if (pos < text.length() && !finder.boundaryReasons()) finder.toPreviousBoundary(); + const int cursor = finder.position() != -1 ? finder.position() : 0; - d->control->setSelection(anchor, finder.position() - anchor); + d->control->setSelection(anchor, cursor - anchor); } } } @@ -1684,6 +1823,25 @@ void QDeclarativeTextInput::focusInEvent(QFocusEvent *event) QDeclarativePaintedItem::focusInEvent(event); } +/*! + \qmlproperty bool TextInput::inputMethodComposing + + \since QtQuick 1.1 + + This property holds whether the TextInput has partial text input from an + input method. + + While it is composing an input method may rely on mouse or key events from + the TextInput to edit or commit the partial text. This property can be + used to determine when to disable events handlers that may interfere with + the correct operation of an input method. +*/ +bool QDeclarativeTextInput::isInputMethodComposing() const +{ + Q_D(const QDeclarativeTextInput); + return d->control->preeditAreaText().length() > 0; +} + void QDeclarativeTextInputPrivate::init() { Q_Q(QDeclarativeTextInput); @@ -1708,9 +1866,12 @@ void QDeclarativeTextInputPrivate::init() q, SLOT(q_canPasteChanged())); q->connect(QApplication::clipboard(), SIGNAL(dataChanged()), q, SLOT(q_canPasteChanged())); + canPaste = !control->isReadOnly() && QApplication::clipboard()->text().length() != 0; #endif // QT_NO_CLIPBOARD q->connect(control, SIGNAL(updateMicroFocus()), q, SLOT(updateMicroFocus())); + q->connect(control, SIGNAL(displayTextChanged(QString)), + q, SLOT(updateRect())); q->updateSize(); oldValidity = control->hasAcceptableInput(); lastSelectionStart = 0; @@ -1718,6 +1879,7 @@ void QDeclarativeTextInputPrivate::init() QPalette p = control->palette(); selectedTextColor = p.color(QPalette::HighlightedText); selectionColor = p.color(QPalette::Highlight); + determineHorizontalAlignment(); } void QDeclarativeTextInput::cursorPosChanged() @@ -1765,6 +1927,7 @@ void QDeclarativeTextInput::q_textChanged() { Q_D(QDeclarativeTextInput); updateSize(); + d->determineHorizontalAlignment(); d->updateHorizontalScroll(); updateMicroFocus(); emit textChanged(); |