diff options
Diffstat (limited to 'src/declarative/graphicsitems/qdeclarativetextedit.cpp')
| -rw-r--r-- | src/declarative/graphicsitems/qdeclarativetextedit.cpp | 247 |
1 files changed, 227 insertions, 20 deletions
diff --git a/src/declarative/graphicsitems/qdeclarativetextedit.cpp b/src/declarative/graphicsitems/qdeclarativetextedit.cpp index 19c0f2d..39f1465 100644 --- a/src/declarative/graphicsitems/qdeclarativetextedit.cpp +++ b/src/declarative/graphicsitems/qdeclarativetextedit.cpp @@ -51,6 +51,7 @@ #include <QTextLayout> #include <QTextLine> #include <QTextDocument> +#include <QTextObject> #include <QGraphicsSceneMouseEvent> #include <QDebug> #include <QPainter> @@ -103,8 +104,16 @@ TextEdit { \sa Text, TextInput, {declarative/text/textselection}{Text Selection example} */ +/*! + \qmlsignal TextEdit::onLinkActivated(string link) + \since Quick 1.1 + + This handler is called when the user clicks on a link embedded in the text. + The link must be in rich text or HTML format and the + \a link string provides access to the particular link. +*/ QDeclarativeTextEdit::QDeclarativeTextEdit(QDeclarativeItem *parent) -: QDeclarativePaintedItem(*(new QDeclarativeTextEditPrivate), parent) +: QDeclarativeImplicitSizePaintedItem(*(new QDeclarativeTextEditPrivate), parent) { Q_D(QDeclarativeTextEdit); d->init(); @@ -457,6 +466,7 @@ void QDeclarativeTextEdit::setSelectedTextColor(const QColor &color) \o TextEdit.AlignLeft (default) \o TextEdit.AlignRight \o TextEdit.AlignHCenter + \o TextEdit.AlignJustify \endlist Valid values for \c verticalAlignment are: @@ -533,6 +543,17 @@ void QDeclarativeTextEdit::setWrapMode(WrapMode mode) } /*! + \qmlproperty int TextEdit::lineCount + + Returns the total number of lines in the textEdit item. +*/ +int QDeclarativeTextEdit::lineCount() const +{ + Q_D(const QDeclarativeTextEdit); + return d->lineCount; +} + +/*! \qmlproperty real TextEdit::paintedWidth Returns the width of the text, including the width past the width @@ -540,7 +561,8 @@ void QDeclarativeTextEdit::setWrapMode(WrapMode mode) */ qreal QDeclarativeTextEdit::paintedWidth() const { - return implicitWidth(); + Q_D(const QDeclarativeTextEdit); + return d->paintedSize.width(); } /*! @@ -551,7 +573,8 @@ qreal QDeclarativeTextEdit::paintedWidth() const */ qreal QDeclarativeTextEdit::paintedHeight() const { - return implicitHeight(); + Q_D(const QDeclarativeTextEdit); + return d->paintedSize.height(); } /*! @@ -585,37 +608,101 @@ int QDeclarativeTextEdit::positionAt(int x, int y) const return r; } +void QDeclarativeTextEdit::moveCursorSelection(int pos) +{ + //Note that this is the same as setCursorPosition but with the KeepAnchor flag set + Q_D(QDeclarativeTextEdit); + QTextCursor cursor = d->control->textCursor(); + if (cursor.position() == pos) + return; + cursor.setPosition(pos, QTextCursor::KeepAnchor); + d->control->setTextCursor(cursor); +} + /*! - \qmlmethod int TextEdit::moveCursorSelection(int pos) + \qmlmethod void TextEdit::moveCursorSelection(int position, SelectionMode mode = TextEdit.SelectCharacters) + \since Quick 1.1 - Moves the cursor to \a position and updates the selection accordingly. - (To only move the cursor, set the \l cursorPosition property.) + Moves the cursor to \a position and updates the selection according to the optional \a mode + parameter. (To only move the cursor, set the \l cursorPosition property.) When this method is called it additionally sets either the selectionStart or the selectionEnd (whichever was at the previous cursor position) to the specified position. This allows you to easily extend and contract the selected text range. + The selection mode specifies whether the selection is updated on a per character or a per word + basis. If not specified the selection mode will default to TextEdit.SelectCharacters. + + \list + \o TextEdit.SelectCharacters - Sets either the selectionStart or selectionEnd (whichever was at + the previous cursor position) to the specified position. + \o TextEdit.SelectWords - Sets the selectionStart and selectionEnd to include all + words between the specified postion and the previous cursor position. Words partially in the + range are included. + \endlist + For example, take this sequence of calls: \code cursorPosition = 5 - moveCursorSelection(9) - moveCursorSelection(7) + moveCursorSelection(9, TextEdit.SelectCharacters) + moveCursorSelection(7, TextEdit.SelectCharacters) \endcode This moves the cursor to position 5, extend the selection end from 5 to 9 and then retract the selection end from 9 to 7, leaving the text from position 5 to 7 selected (the 6th and 7th characters). + + The same sequence with TextEdit.SelectWords will extend the selection start to a word boundary + before or on position 5 and extend the selection end to a word boundary on or past position 9. */ -void QDeclarativeTextEdit::moveCursorSelection(int pos) +void QDeclarativeTextEdit::moveCursorSelection(int pos, SelectionMode mode) { - //Note that this is the same as setCursorPosition but with the KeepAnchor flag set Q_D(QDeclarativeTextEdit); QTextCursor cursor = d->control->textCursor(); if (cursor.position() == pos) return; - cursor.setPosition(pos, QTextCursor::KeepAnchor); + if (mode == SelectCharacters) { + cursor.setPosition(pos, QTextCursor::KeepAnchor); + } else if (cursor.anchor() < pos || (cursor.anchor() == pos && cursor.position() < pos)) { + if (cursor.anchor() > cursor.position()) { + cursor.setPosition(cursor.anchor(), QTextCursor::MoveAnchor); + cursor.movePosition(QTextCursor::StartOfWord, QTextCursor::KeepAnchor); + if (cursor.position() == cursor.anchor()) + cursor.movePosition(QTextCursor::PreviousWord, QTextCursor::MoveAnchor); + else + cursor.setPosition(cursor.position(), QTextCursor::MoveAnchor); + } else { + cursor.setPosition(cursor.anchor(), QTextCursor::MoveAnchor); + cursor.movePosition(QTextCursor::StartOfWord, QTextCursor::MoveAnchor); + } + + cursor.setPosition(pos, QTextCursor::KeepAnchor); + cursor.movePosition(QTextCursor::StartOfWord, QTextCursor::KeepAnchor); + if (cursor.position() != pos) + cursor.movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor); + } else if (cursor.anchor() > pos || (cursor.anchor() == pos && cursor.position() > pos)) { + if (cursor.anchor() < cursor.position()) { + cursor.setPosition(cursor.anchor(), QTextCursor::MoveAnchor); + cursor.movePosition(QTextCursor::EndOfWord, QTextCursor::MoveAnchor); + } else { + cursor.setPosition(cursor.anchor(), QTextCursor::MoveAnchor); + cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor); + cursor.movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor); + if (cursor.position() != cursor.anchor()) { + cursor.setPosition(cursor.anchor(), QTextCursor::MoveAnchor); + cursor.movePosition(QTextCursor::EndOfWord, QTextCursor::MoveAnchor); + } + } + + cursor.setPosition(pos, QTextCursor::KeepAnchor); + cursor.movePosition(QTextCursor::EndOfWord, QTextCursor::KeepAnchor); + if (cursor.position() != pos) { + cursor.movePosition(QTextCursor::PreviousCharacter, QTextCursor::KeepAnchor); + cursor.movePosition(QTextCursor::StartOfWord, QTextCursor::KeepAnchor); + } + } d->control->setTextCursor(cursor); } @@ -661,7 +748,7 @@ void QDeclarativeTextEdit::setCursorPosition(int pos) if (pos < 0 || pos > d->text.length()) return; QTextCursor cursor = d->control->textCursor(); - if (cursor.position() == pos) + if (cursor.position() == pos && cursor.anchor() == pos) return; cursor.setPosition(pos); d->control->setTextCursor(cursor); @@ -894,6 +981,35 @@ void QDeclarativeTextEdit::setSelectByMouse(bool on) } +/*! + \qmlproperty enum TextEdit::mouseSelectionMode + \since Quick 1.1 + + Specifies how text should be selected using a mouse. + + \list + \o TextEdit.SelectCharacters - The selection is updated with individual characters. (Default) + \o TextEdit.SelectWords - The selection is updated with whole words. + \endlist + + This property only applies when \l selectByMouse is true. +*/ + +QDeclarativeTextEdit::SelectionMode QDeclarativeTextEdit::mouseSelectionMode() const +{ + Q_D(const QDeclarativeTextEdit); + return d->mouseSelectionMode; +} + +void QDeclarativeTextEdit::setMouseSelectionMode(SelectionMode mode) +{ + Q_D(QDeclarativeTextEdit); + if (d->mouseSelectionMode != mode) { + d->mouseSelectionMode = mode; + d->control->setWordSelectionEnabled(mode == SelectWords); + emit mouseSelectionModeChanged(mode); + } +} /*! \qmlproperty bool TextEdit::readOnly @@ -909,12 +1025,13 @@ void QDeclarativeTextEdit::setReadOnly(bool r) if (r == isReadOnly()) return; + setFlag(QGraphicsItem::ItemAcceptsInputMethod, !r); - Qt::TextInteractionFlags flags = Qt::NoTextInteraction; + Qt::TextInteractionFlags flags = Qt::LinksAccessibleByMouse; if (r) { - flags = Qt::TextSelectableByMouse; + flags = flags | Qt::TextSelectableByMouse; } else { - flags = Qt::TextEditorInteraction; + flags = flags | Qt::TextEditorInteraction; } d->control->setTextInteractionFlags(flags); if (!r) @@ -1012,6 +1129,19 @@ void QDeclarativeTextEditPrivate::focusChanged(bool hasFocus) } /*! + \qmlmethod void TextEdit::deselect() + + Removes active text selection. +*/ +void QDeclarativeTextEdit::deselect() +{ + Q_D(QDeclarativeTextEdit); + QTextCursor c = d->control->textCursor(); + c.clearSelection(); + d->control->setTextCursor(c); +} + +/*! \qmlmethod void TextEdit::selectAll() Causes all text to be selected. @@ -1252,6 +1382,21 @@ void QDeclarativeTextEdit::updateImgCache(const QRectF &rf) filtering at the beginning of the animation and reenable it at the conclusion. */ +/*! + \qmlproperty bool TextEdit::canPaste + + Returns true if the TextEdit is writable and the content of the clipboard is + suitable for pasting into the TextEdit. + + \since QtQuick 1.1 +*/ + +bool QDeclarativeTextEdit::canPaste() const +{ + Q_D(const QDeclarativeTextEdit); + return d->canPaste; +} + void QDeclarativeTextEditPrivate::init() { Q_Q(QDeclarativeTextEdit); @@ -1263,6 +1408,8 @@ void QDeclarativeTextEditPrivate::init() control = new QTextControl(q); control->setIgnoreUnusedNavigationEvents(true); + control->setTextInteractionFlags(control->textInteractionFlags() | Qt::LinksAccessibleByMouse); + control->setDragEnabled(false); // QTextControl follows the default text color // defined by the platform, declarative text @@ -1281,6 +1428,11 @@ void QDeclarativeTextEditPrivate::init() QObject::connect(control, SIGNAL(cursorPositionChanged()), q, SLOT(updateSelectionMarkers())); QObject::connect(control, SIGNAL(cursorPositionChanged()), q, SIGNAL(cursorPositionChanged())); QObject::connect(control, SIGNAL(cursorPositionChanged()), q, SIGNAL(cursorRectangleChanged())); + QObject::connect(control, SIGNAL(linkActivated(QString)), q, SIGNAL(linkActivated(QString))); +#ifndef QT_NO_CLIPBOARD + QObject::connect(q, SIGNAL(readOnlyChanged(bool)), q, SLOT(q_canPasteChanged())); + QObject::connect(QApplication::clipboard(), SIGNAL(dataChanged()), q, SLOT(q_canPasteChanged())); +#endif document = control->document(); document->setDefaultFont(font); @@ -1295,6 +1447,7 @@ void QDeclarativeTextEdit::q_textChanged() Q_D(QDeclarativeTextEdit); d->text = text(); updateSize(); + updateTotalLines(); updateMicroFocus(); emit textChanged(d->text); } @@ -1356,6 +1509,17 @@ QRectF QDeclarativeTextEdit::boundingRect() const return r.translated(0,d->yoff); } +qreal QDeclarativeTextEditPrivate::implicitWidth() const +{ + Q_Q(const QDeclarativeTextEdit); + if (!requireImplicitWidth) { + // We don't calculate implicitWidth unless it is required. + // We need to force a size update now to ensure implicitWidth is calculated + const_cast<QDeclarativeTextEditPrivate*>(this)->requireImplicitWidth = true; + const_cast<QDeclarativeTextEdit*>(q)->updateSize(); + } + return mImplicitWidth; +} //### we should perhaps be a bit smarter here -- depending on what has changed, we shouldn't // need to do all the calculations each time @@ -1363,16 +1527,27 @@ void QDeclarativeTextEdit::updateSize() { Q_D(QDeclarativeTextEdit); if (isComponentComplete()) { - QFontMetrics fm = QFontMetrics(d->font); - int dy = height(); + qreal naturalWidth = d->mImplicitWidth; // ### assumes that if the width is set, the text will fill to edges // ### (unless wrap is false, then clipping will occur) if (widthValid()) { + if (!d->requireImplicitWidth) { + emit implicitWidthChanged(); + // if the implicitWidth is used, then updateSize() has already been called (recursively) + if (d->requireImplicitWidth) + return; + } + if (d->requireImplicitWidth) { + d->document->setTextWidth(-1); + naturalWidth = d->document->idealWidth(); + } if (d->document->textWidth() != width()) d->document->setTextWidth(width()); } else { d->document->setTextWidth(-1); } + QFontMetrics fm = QFontMetrics(d->font); + int dy = height(); dy -= (int)d->document->size().height(); int nyoff; @@ -1397,12 +1572,15 @@ void QDeclarativeTextEdit::updateSize() if (!widthValid() && d->document->textWidth() != newWidth) d->document->setTextWidth(newWidth); // ### Text does not align if width is not set (QTextDoc bug) // ### Setting the implicitWidth triggers another updateSize(), and unless there are bindings nothing has changed. - setImplicitWidth(newWidth); + if (!widthValid()) + setImplicitWidth(newWidth); + else if (d->requireImplicitWidth) + setImplicitWidth(naturalWidth); qreal newHeight = d->document->isEmpty() ? fm.height() : (int)d->document->size().height(); setImplicitHeight(newHeight); - setContentsSize(QSize(newWidth, newHeight)); - + d->paintedSize = QSize(newWidth, newHeight); + setContentsSize(d->paintedSize); emit paintedSizeChanged(); } else { d->dirty = true; @@ -1410,6 +1588,26 @@ void QDeclarativeTextEdit::updateSize() emit update(); } +void QDeclarativeTextEdit::updateTotalLines() +{ + Q_D(QDeclarativeTextEdit); + + int subLines = 0; + + for (QTextBlock it = d->document->begin(); it != d->document->end(); it = it.next()) { + QTextLayout *layout = it.layout(); + if (!layout) + continue; + subLines += layout->lineCount()-1; + } + + int newTotalLines = d->document->lineCount() + subLines; + if (d->lineCount != newTotalLines) { + d->lineCount = newTotalLines; + emit lineCountChanged(); + } +} + void QDeclarativeTextEditPrivate::updateDefaultTextOption() { QTextOption opt = document->defaultTextOption(); @@ -1538,4 +1736,13 @@ void QDeclarativeTextEdit::focusInEvent(QFocusEvent *event) QDeclarativePaintedItem::focusInEvent(event); } +void QDeclarativeTextEdit::q_canPasteChanged() +{ + Q_D(QDeclarativeTextEdit); + bool old = d->canPaste; + d->canPaste = d->control->canPaste(); + if(old!=d->canPaste) + emit canPasteChanged(); +} + QT_END_NAMESPACE |