/**************************************************************************** ** ** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies). ** Contact: http://www.qt-project.org/ ** ** This file is part of the QtQml module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** GNU Lesser General Public License Usage ** This file may be used under the terms of the GNU Lesser General Public ** License version 2.1 as published by the Free Software Foundation and ** appearing in the file LICENSE.LGPL included in the packaging of this ** file. Please review the following information to ensure the GNU Lesser ** General Public License version 2.1 requirements will be met: ** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. ** ** In addition, as a special exception, Nokia gives you certain additional ** rights. These rights are described in the Nokia Qt LGPL Exception ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. ** ** GNU General Public License Usage ** Alternatively, this file may be used under the terms of the GNU General ** Public License version 3.0 as published by the Free Software Foundation ** and appearing in the file LICENSE.GPL included in the packaging of this ** file. Please review the following information to ensure the GNU General ** Public License version 3.0 requirements will be met: ** http://www.gnu.org/copyleft/gpl.html. ** ** Other Usage ** Alternatively, this file may be used in accordance with the terms and ** conditions contained in a signed written agreement between you and Nokia. ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "qquicktextedit_p.h" #include "qquicktextedit_p_p.h" #include "qquicktextcontrol_p.h" #include "qquicktext_p_p.h" #include "qquickevents_p_p.h" #include "qquickcanvas.h" #include "qquicktextnode_p.h" #include #include #include #include #include #include #include #include #include #include #include QT_BEGIN_NAMESPACE /*! \qmlclass TextEdit QQuickTextEdit \inqmlmodule QtQuick 2 \ingroup qml-basic-visual-elements \brief The TextEdit item displays multiple lines of editable formatted text. \inherits Item The TextEdit item displays a block of editable, formatted text. It can display both plain and rich text. For example: \qml TextEdit { width: 240 text: "Hello World!" font.family: "Helvetica" font.pointSize: 20 color: "blue" focus: true } \endqml \image declarative-textedit.gif Setting \l {Item::focus}{focus} to \c true enables the TextEdit item to receive keyboard focus. Note that the TextEdit does not implement scrolling, following the cursor, or other behaviors specific to a look-and-feel. For example, to add flickable scrolling that follows the cursor: \snippet snippets/declarative/texteditor.qml 0 A particular look-and-feel might use smooth scrolling (eg. using SmoothedFollow), might have a visible scrollbar, or a scrollbar that fades in to show location, etc. Clipboard support is provided by the cut(), copy(), and paste() functions, and the selection can be handled in a traditional "mouse" mechanism by setting selectByMouse, or handled completely from QML by manipulating selectionStart and selectionEnd, or using selectAll() or selectWord(). You can translate between cursor positions (characters from the start of the document) and pixel points using positionAt() and positionToRectangle(). \sa Text, TextInput, {declarative/text/textselection}{Text Selection example} */ /*! \qmlsignal QtQuick2::TextEdit::onLinkActivated(string link) 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. */ QQuickTextEdit::QQuickTextEdit(QQuickItem *parent) : QQuickImplicitSizeItem(*(new QQuickTextEditPrivate), parent) { Q_D(QQuickTextEdit); d->init(); } QString QQuickTextEdit::text() const { Q_D(const QQuickTextEdit); if (!d->textCached) { QQuickTextEditPrivate *d = const_cast(d_func()); #ifndef QT_NO_TEXTHTMLPARSER if (d->richText) d->text = d->control->toHtml(); else #endif d->text = d->control->toPlainText(); d->textCached = true; } return d->text; } /*! \qmlproperty string QtQuick2::TextEdit::font.family Sets the family name of the font. The family name is case insensitive and may optionally include a foundry name, e.g. "Helvetica [Cronyx]". If the family is available from more than one foundry and the foundry isn't specified, an arbitrary foundry is chosen. If the family isn't available a family will be set using the font matching algorithm. */ /*! \qmlproperty bool QtQuick2::TextEdit::font.bold Sets whether the font weight is bold. */ /*! \qmlproperty enumeration QtQuick2::TextEdit::font.weight Sets the font's weight. The weight can be one of: \list \li Font.Light \li Font.Normal - the default \li Font.DemiBold \li Font.Bold \li Font.Black \endlist \qml TextEdit { text: "Hello"; font.weight: Font.DemiBold } \endqml */ /*! \qmlproperty bool QtQuick2::TextEdit::font.italic Sets whether the font has an italic style. */ /*! \qmlproperty bool QtQuick2::TextEdit::font.underline Sets whether the text is underlined. */ /*! \qmlproperty bool QtQuick2::TextEdit::font.strikeout Sets whether the font has a strikeout style. */ /*! \qmlproperty real QtQuick2::TextEdit::font.pointSize Sets the font size in points. The point size must be greater than zero. */ /*! \qmlproperty int QtQuick2::TextEdit::font.pixelSize Sets the font size in pixels. Using this function makes the font device dependent. Use \l{TextEdit::font.pointSize} to set the size of the font in a device independent manner. */ /*! \qmlproperty real QtQuick2::TextEdit::font.letterSpacing Sets the letter spacing for the font. Letter spacing changes the default spacing between individual letters in the font. A positive value increases the letter spacing by the corresponding pixels; a negative value decreases the spacing. */ /*! \qmlproperty real QtQuick2::TextEdit::font.wordSpacing Sets the word spacing for the font. Word spacing changes the default spacing between individual words. A positive value increases the word spacing by a corresponding amount of pixels, while a negative value decreases the inter-word spacing accordingly. */ /*! \qmlproperty enumeration QtQuick2::TextEdit::font.capitalization Sets the capitalization for the text. \list \li Font.MixedCase - This is the normal text rendering option where no capitalization change is applied. \li Font.AllUppercase - This alters the text to be rendered in all uppercase type. \li Font.AllLowercase - This alters the text to be rendered in all lowercase type. \li Font.SmallCaps - This alters the text to be rendered in small-caps type. \li Font.Capitalize - This alters the text to be rendered with the first character of each word as an uppercase character. \endlist \qml TextEdit { text: "Hello"; font.capitalization: Font.AllLowercase } \endqml */ /*! \qmlproperty string QtQuick2::TextEdit::text The text to display. If the text format is AutoText the text edit will automatically determine whether the text should be treated as rich text. This determination is made using Qt::mightBeRichText(). */ void QQuickTextEdit::setText(const QString &text) { Q_D(QQuickTextEdit); if (QQuickTextEdit::text() == text) return; d->document->clearResources(); d->richText = d->format == RichText || (d->format == AutoText && Qt::mightBeRichText(text)); if (d->richText) { #ifndef QT_NO_TEXTHTMLPARSER d->control->setHtml(text); #else d->control->setPlainText(text); #endif } else { d->control->setPlainText(text); } } /*! \qmlproperty enumeration QtQuick2::TextEdit::textFormat The way the text property should be displayed. \list \li TextEdit.AutoText \li TextEdit.PlainText \li TextEdit.RichText \endlist The default is TextEdit.PlainText. If the text format is TextEdit.AutoText the text edit will automatically determine whether the text should be treated as rich text. This determination is made using Qt::mightBeRichText(). \table \row \li \qml Column { TextEdit { font.pointSize: 24 text: "Hello World!" } TextEdit { font.pointSize: 24 textFormat: TextEdit.RichText text: "Hello World!" } TextEdit { font.pointSize: 24 textFormat: TextEdit.PlainText text: "Hello World!" } } \endqml \li \image declarative-textformat.png \endtable */ QQuickTextEdit::TextFormat QQuickTextEdit::textFormat() const { Q_D(const QQuickTextEdit); return d->format; } void QQuickTextEdit::setTextFormat(TextFormat format) { Q_D(QQuickTextEdit); if (format == d->format) return; bool wasRich = d->richText; d->richText = format == RichText || (format == AutoText && (wasRich || Qt::mightBeRichText(text()))); #ifndef QT_NO_TEXTHTMLPARSER if (wasRich && !d->richText) { d->control->setPlainText(!d->textCached ? d->control->toHtml() : d->text); updateSize(); } else if (!wasRich && d->richText) { d->control->setHtml(!d->textCached ? d->control->toPlainText() : d->text); updateSize(); } #endif d->format = format; d->control->setAcceptRichText(d->format != PlainText); emit textFormatChanged(d->format); } QFont QQuickTextEdit::font() const { Q_D(const QQuickTextEdit); return d->sourceFont; } void QQuickTextEdit::setFont(const QFont &font) { Q_D(QQuickTextEdit); if (d->sourceFont == font) return; d->sourceFont = font; QFont oldFont = d->font; d->font = font; if (d->font.pointSizeF() != -1) { // 0.5pt resolution qreal size = qRound(d->font.pointSizeF()*2.0); d->font.setPointSizeF(size/2.0); } if (oldFont != d->font) { d->document->setDefaultFont(d->font); if (d->cursor) { d->cursor->setHeight(QFontMetrics(d->font).height()); moveCursorDelegate(); } updateSize(); updateDocument(); updateInputMethod(Qt::ImCursorRectangle | Qt::ImFont); } emit fontChanged(d->sourceFont); } /*! \qmlproperty color QtQuick2::TextEdit::color The text color. \qml // green text using hexadecimal notation TextEdit { color: "#00FF00" } \endqml \qml // steelblue text using SVG color name TextEdit { color: "steelblue" } \endqml */ QColor QQuickTextEdit::color() const { Q_D(const QQuickTextEdit); return d->color; } void QQuickTextEdit::setColor(const QColor &color) { Q_D(QQuickTextEdit); if (d->color == color) return; d->color = color; updateDocument(); emit colorChanged(d->color); } /*! \qmlproperty color QtQuick2::TextEdit::selectionColor The text highlight color, used behind selections. */ QColor QQuickTextEdit::selectionColor() const { Q_D(const QQuickTextEdit); return d->selectionColor; } void QQuickTextEdit::setSelectionColor(const QColor &color) { Q_D(QQuickTextEdit); if (d->selectionColor == color) return; d->selectionColor = color; updateDocument(); emit selectionColorChanged(d->selectionColor); } /*! \qmlproperty color QtQuick2::TextEdit::selectedTextColor The selected text color, used in selections. */ QColor QQuickTextEdit::selectedTextColor() const { Q_D(const QQuickTextEdit); return d->selectedTextColor; } void QQuickTextEdit::setSelectedTextColor(const QColor &color) { Q_D(QQuickTextEdit); if (d->selectedTextColor == color) return; d->selectedTextColor = color; updateDocument(); emit selectedTextColorChanged(d->selectedTextColor); } /*! \qmlproperty enumeration QtQuick2::TextEdit::horizontalAlignment \qmlproperty enumeration QtQuick2::TextEdit::verticalAlignment \qmlproperty enumeration QtQuick2::TextEdit::effectiveHorizontalAlignment Sets the horizontal and vertical alignment of the text within the TextEdit item's 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. Valid values for \c horizontalAlignment are: \list \li TextEdit.AlignLeft (default) \li TextEdit.AlignRight \li TextEdit.AlignHCenter \li TextEdit.AlignJustify \endlist Valid values for \c verticalAlignment are: \list \li TextEdit.AlignTop (default) \li TextEdit.AlignBottom \li TextEdit.AlignVCenter \endlist 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 TextEdit, use the read-only property \c effectiveHorizontalAlignment. */ QQuickTextEdit::HAlignment QQuickTextEdit::hAlign() const { Q_D(const QQuickTextEdit); return d->hAlign; } void QQuickTextEdit::setHAlign(HAlignment align) { Q_D(QQuickTextEdit); bool forceAlign = d->hAlignImplicit && d->effectiveLayoutMirror; d->hAlignImplicit = false; if (d->setHAlign(align, forceAlign) && isComponentComplete()) { d->updateDefaultTextOption(); updateSize(); } } void QQuickTextEdit::resetHAlign() { Q_D(QQuickTextEdit); d->hAlignImplicit = true; if (d->determineHorizontalAlignment() && isComponentComplete()) { d->updateDefaultTextOption(); updateSize(); } } QQuickTextEdit::HAlignment QQuickTextEdit::effectiveHAlign() const { Q_D(const QQuickTextEdit); QQuickTextEdit::HAlignment effectiveAlignment = d->hAlign; if (!d->hAlignImplicit && d->effectiveLayoutMirror) { switch (d->hAlign) { case QQuickTextEdit::AlignLeft: effectiveAlignment = QQuickTextEdit::AlignRight; break; case QQuickTextEdit::AlignRight: effectiveAlignment = QQuickTextEdit::AlignLeft; break; default: break; } } return effectiveAlignment; } bool QQuickTextEditPrivate::setHAlign(QQuickTextEdit::HAlignment alignment, bool forceAlign) { Q_Q(QQuickTextEdit); if (hAlign != alignment || forceAlign) { QQuickTextEdit::HAlignment oldEffectiveHAlign = q->effectiveHAlign(); hAlign = alignment; emit q->horizontalAlignmentChanged(alignment); if (oldEffectiveHAlign != q->effectiveHAlign()) emit q->effectiveHorizontalAlignmentChanged(); return true; } return false; } bool QQuickTextEditPrivate::determineHorizontalAlignment() { Q_Q(QQuickTextEdit); if (hAlignImplicit && q->isComponentComplete()) { bool alignToRight; if (document->isEmpty()) { const QString preeditText = control->textCursor().block().layout()->preeditAreaText(); alignToRight = preeditText.isEmpty() ? qApp->inputMethod()->inputDirection() == Qt::RightToLeft : preeditText.isRightToLeft(); } else { alignToRight = rightToLeftText; } return setHAlign(alignToRight ? QQuickTextEdit::AlignRight : QQuickTextEdit::AlignLeft); } return false; } void QQuickTextEditPrivate::mirrorChange() { Q_Q(QQuickTextEdit); if (q->isComponentComplete()) { if (!hAlignImplicit && (hAlign == QQuickTextEdit::AlignRight || hAlign == QQuickTextEdit::AlignLeft)) { updateDefaultTextOption(); q->updateSize(); emit q->effectiveHorizontalAlignmentChanged(); } } } QQuickTextEdit::VAlignment QQuickTextEdit::vAlign() const { Q_D(const QQuickTextEdit); return d->vAlign; } void QQuickTextEdit::setVAlign(QQuickTextEdit::VAlignment alignment) { Q_D(QQuickTextEdit); if (alignment == d->vAlign) return; d->vAlign = alignment; d->updateDefaultTextOption(); updateSize(); moveCursorDelegate(); emit verticalAlignmentChanged(d->vAlign); } /*! \qmlproperty enumeration QtQuick2::TextEdit::wrapMode Set this property to wrap the text to the TextEdit item's width. The text will only wrap if an explicit width has been set. \list \li TextEdit.NoWrap - no wrapping will be performed. If the text contains insufficient newlines, then implicitWidth will exceed a set width. \li TextEdit.WordWrap - wrapping is done on word boundaries only. If a word is too long, implicitWidth will exceed a set width. \li TextEdit.WrapAnywhere - wrapping is done at any point on a line, even if it occurs in the middle of a word. \li TextEdit.Wrap - if possible, wrapping occurs at a word boundary; otherwise it will occur at the appropriate point on the line, even in the middle of a word. \endlist The default is TextEdit.NoWrap. If you set a width, consider using TextEdit.Wrap. */ QQuickTextEdit::WrapMode QQuickTextEdit::wrapMode() const { Q_D(const QQuickTextEdit); return d->wrapMode; } void QQuickTextEdit::setWrapMode(WrapMode mode) { Q_D(QQuickTextEdit); if (mode == d->wrapMode) return; d->wrapMode = mode; d->updateDefaultTextOption(); updateSize(); emit wrapModeChanged(); } /*! \qmlproperty int QtQuick2::TextEdit::lineCount Returns the total number of lines in the textEdit item. */ int QQuickTextEdit::lineCount() const { Q_D(const QQuickTextEdit); return d->lineCount; } /*! \qmlproperty int QtQuick2::TextEdit::length Returns the total number of plain text characters in the TextEdit item. As this number doesn't include any formatting markup it may not be the same as the length of the string returned by the \l text property. This property can be faster than querying the length the \l text property as it doesn't require any copying or conversion of the TextEdit's internal string data. */ int QQuickTextEdit::length() const { Q_D(const QQuickTextEdit); // QTextDocument::characterCount() includes the terminating null character. return qMax(0, d->document->characterCount() - 1); } /*! \qmlproperty real QtQuick2::TextEdit::contentWidth Returns the width of the text, including the width past the width which is covered due to insufficient wrapping if \l wrapMode is set. */ qreal QQuickTextEdit::contentWidth() const { Q_D(const QQuickTextEdit); return d->contentSize.width(); } /*! \qmlproperty real QtQuick2::TextEdit::contentHeight Returns the height of the text, including the height past the height that is covered if the text does not fit within the set height. */ qreal QQuickTextEdit::contentHeight() const { Q_D(const QQuickTextEdit); return d->contentSize.height(); } /*! \qmlproperty url QtQuick2::TextEdit::baseUrl This property specifies a base URL which is used to resolve relative URLs within the text. By default is the url of the TextEdit element. */ QUrl QQuickTextEdit::baseUrl() const { Q_D(const QQuickTextEdit); if (d->baseUrl.isEmpty()) { if (QQmlContext *context = qmlContext(this)) const_cast(d)->baseUrl = context->baseUrl(); } return d->baseUrl; } void QQuickTextEdit::setBaseUrl(const QUrl &url) { Q_D(QQuickTextEdit); if (baseUrl() != url) { d->baseUrl = url; d->document->setBaseUrl(url, d->richText); emit baseUrlChanged(); } } void QQuickTextEdit::resetBaseUrl() { if (QQmlContext *context = qmlContext(this)) setBaseUrl(context->baseUrl()); else setBaseUrl(QUrl()); } /*! \qmlmethod rectangle QtQuick2::TextEdit::positionToRectangle(position) Returns the rectangle at the given \a position in the text. The x, y, and height properties correspond to the cursor that would describe that position. */ QRectF QQuickTextEdit::positionToRectangle(int pos) const { Q_D(const QQuickTextEdit); QTextCursor c(d->document); c.setPosition(pos); return d->control->cursorRect(c).translated(0, d->yoff); } /*! \qmlmethod int QtQuick2::TextEdit::positionAt(int x, int y) Returns the text position closest to pixel position (\a x, \a y). Position 0 is before the first character, position 1 is after the first character but before the second, and so on until position \l {text}.length, which is after all characters. */ int QQuickTextEdit::positionAt(qreal x, qreal y) const { Q_D(const QQuickTextEdit); int r = d->document->documentLayout()->hitTest(QPointF(x,y-d->yoff), Qt::FuzzyHit); QTextCursor cursor = d->control->textCursor(); if (r > cursor.position()) { // The cursor position includes positions within the preedit text, but only positions in the // same text block are offset so it is possible to get a position that is either part of the // preedit or the next text block. QTextLayout *layout = cursor.block().layout(); const int preeditLength = layout ? layout->preeditAreaText().length() : 0; if (preeditLength > 0 && d->document->documentLayout()->blockBoundingRect(cursor.block()).contains(x,y-d->yoff)) { r = r > cursor.position() + preeditLength ? r - preeditLength : cursor.position(); } } return r; } /*! \qmlmethod void QtQuick2::TextEdit::moveCursorSelection(int position, SelectionMode mode = TextEdit.SelectCharacters) 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 \li TextEdit.SelectCharacters - Sets either the selectionStart or selectionEnd (whichever was at the previous cursor position) to the specified position. \li TextEdit.SelectWords - Sets the selectionStart and selectionEnd to include all words between the specified position 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, 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 QQuickTextEdit::moveCursorSelection(int pos) { //Note that this is the same as setCursorPosition but with the KeepAnchor flag set Q_D(QQuickTextEdit); QTextCursor cursor = d->control->textCursor(); if (cursor.position() == pos) return; cursor.setPosition(pos, QTextCursor::KeepAnchor); d->control->setTextCursor(cursor); } void QQuickTextEdit::moveCursorSelection(int pos, SelectionMode mode) { Q_D(QQuickTextEdit); QTextCursor cursor = d->control->textCursor(); if (cursor.position() == pos) return; 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); } /*! \qmlproperty bool QtQuick2::TextEdit::cursorVisible If true the text edit shows a cursor. This property is set and unset when the text edit gets active focus, but it can also be set directly (useful, for example, if a KeyProxy might forward keys to it). */ bool QQuickTextEdit::isCursorVisible() const { Q_D(const QQuickTextEdit); return d->cursorVisible; } void QQuickTextEdit::setCursorVisible(bool on) { Q_D(QQuickTextEdit); if (d->cursorVisible == on) return; d->cursorVisible = on; QFocusEvent focusEvent(on ? QEvent::FocusIn : QEvent::FocusOut); if (!on && !d->persistentSelection) d->control->setCursorIsFocusIndicator(true); d->control->processEvent(&focusEvent, QPointF(0, -d->yoff)); emit cursorVisibleChanged(d->cursorVisible); } /*! \qmlproperty int QtQuick2::TextEdit::cursorPosition The position of the cursor in the TextEdit. */ int QQuickTextEdit::cursorPosition() const { Q_D(const QQuickTextEdit); return d->control->textCursor().position(); } void QQuickTextEdit::setCursorPosition(int pos) { Q_D(QQuickTextEdit); if (pos < 0 || pos >= d->document->characterCount()) // characterCount includes the terminating null. return; QTextCursor cursor = d->control->textCursor(); if (cursor.position() == pos && cursor.anchor() == pos) return; cursor.setPosition(pos); d->control->setTextCursor(cursor); } /*! \qmlproperty Component QtQuick2::TextEdit::cursorDelegate The delegate for the cursor in the TextEdit. If you set a cursorDelegate for a TextEdit, this delegate will be used for drawing the cursor instead of the standard cursor. An instance of the delegate will be created and managed by the text edit when a cursor is needed, and the x and y properties of delegate instance will be set so as to be one pixel before the top left of the current character. Note that the root item of the delegate component must be a QQuickItem or QQuickItem derived item. */ QQmlComponent* QQuickTextEdit::cursorDelegate() const { Q_D(const QQuickTextEdit); return d->cursorComponent; } void QQuickTextEdit::setCursorDelegate(QQmlComponent* c) { Q_D(QQuickTextEdit); if (d->cursorComponent) { if (d->cursor) { d->control->setCursorWidth(-1); updateCursor(); delete d->cursor; d->cursor = 0; } } d->cursorComponent = c; if (c && c->isReady()) { loadCursorDelegate(); } else { if (c) connect(c, SIGNAL(statusChanged()), this, SLOT(loadCursorDelegate())); } emit cursorDelegateChanged(); } void QQuickTextEdit::loadCursorDelegate() { Q_D(QQuickTextEdit); if (d->cursorComponent->isLoading() || !isComponentComplete()) return; QQmlContext *creationContext = d->cursorComponent->creationContext(); QObject *object = d->cursorComponent->create(creationContext ? creationContext : qmlContext(this)); d->cursor = qobject_cast(object); if (d->cursor) { d->control->setCursorWidth(0); updateCursor(); QQml_setParent_noEvent(d->cursor, this); d->cursor->setParentItem(this); d->cursor->setHeight(QFontMetrics(d->font).height()); moveCursorDelegate(); }else{ delete object; qmlInfo(this) << "Error loading cursor delegate."; } } /*! \qmlproperty int QtQuick2::TextEdit::selectionStart The cursor position before the first character in the current selection. This property is read-only. To change the selection, use select(start,end), selectAll(), or selectWord(). \sa selectionEnd, cursorPosition, selectedText */ int QQuickTextEdit::selectionStart() const { Q_D(const QQuickTextEdit); return d->control->textCursor().selectionStart(); } /*! \qmlproperty int QtQuick2::TextEdit::selectionEnd The cursor position after the last character in the current selection. This property is read-only. To change the selection, use select(start,end), selectAll(), or selectWord(). \sa selectionStart, cursorPosition, selectedText */ int QQuickTextEdit::selectionEnd() const { Q_D(const QQuickTextEdit); return d->control->textCursor().selectionEnd(); } /*! \qmlproperty string QtQuick2::TextEdit::selectedText This read-only property provides the text currently selected in the text edit. It is equivalent to the following snippet, but is faster and easier to use. \code //myTextEdit is the id of the TextEdit myTextEdit.text.toString().substring(myTextEdit.selectionStart, myTextEdit.selectionEnd); \endcode */ QString QQuickTextEdit::selectedText() const { Q_D(const QQuickTextEdit); return d->control->textCursor().selectedText(); } /*! \qmlproperty bool QtQuick2::TextEdit::activeFocusOnPress Whether the TextEdit should gain active focus on a mouse press. By default this is set to true. */ bool QQuickTextEdit::focusOnPress() const { Q_D(const QQuickTextEdit); return d->focusOnPress; } void QQuickTextEdit::setFocusOnPress(bool on) { Q_D(QQuickTextEdit); if (d->focusOnPress == on) return; d->focusOnPress = on; emit activeFocusOnPressChanged(d->focusOnPress); } /*! \qmlproperty bool QtQuick2::TextEdit::persistentSelection Whether the TextEdit should keep the selection visible when it loses active focus to another item in the scene. By default this is set to true; */ bool QQuickTextEdit::persistentSelection() const { Q_D(const QQuickTextEdit); return d->persistentSelection; } void QQuickTextEdit::setPersistentSelection(bool on) { Q_D(QQuickTextEdit); if (d->persistentSelection == on) return; d->persistentSelection = on; emit persistentSelectionChanged(d->persistentSelection); } /*! \qmlproperty real QtQuick2::TextEdit::textMargin The margin, in pixels, around the text in the TextEdit. */ qreal QQuickTextEdit::textMargin() const { Q_D(const QQuickTextEdit); return d->textMargin; } void QQuickTextEdit::setTextMargin(qreal margin) { Q_D(QQuickTextEdit); if (d->textMargin == margin) return; d->textMargin = margin; d->document->setDocumentMargin(d->textMargin); emit textMarginChanged(d->textMargin); } /*! \qmlproperty enumeration QtQuick2::TextEdit::inputMethodHints Provides hints to the input method about the expected content of the text edit and how it should operate. The value is a bit-wise combination of flags or Qt.ImhNone if no hints are set. Flags that alter behaviour are: \list \li Qt.ImhHiddenText - Characters should be hidden, as is typically used when entering passwords. \li Qt.ImhSensitiveData - Typed text should not be stored by the active input method in any persistent storage like predictive user dictionary. \li Qt.ImhNoAutoUppercase - The input method should not try to automatically switch to upper case when a sentence ends. \li Qt.ImhPreferNumbers - Numbers are preferred (but not required). \li Qt.ImhPreferUppercase - Upper case letters are preferred (but not required). \li Qt.ImhPreferLowercase - Lower case letters are preferred (but not required). \li Qt.ImhNoPredictiveText - Do not use predictive text (i.e. dictionary lookup) while typing. \li Qt.ImhDate - The text editor functions as a date field. \li Qt.ImhTime - The text editor functions as a time field. \endlist Flags that restrict input (exclusive flags) are: \list \li Qt.ImhDigitsOnly - Only digits are allowed. \li Qt.ImhFormattedNumbersOnly - Only number input is allowed. This includes decimal point and minus sign. \li Qt.ImhUppercaseOnly - Only upper case letter input is allowed. \li Qt.ImhLowercaseOnly - Only lower case letter input is allowed. \li Qt.ImhDialableCharactersOnly - Only characters suitable for phone dialing are allowed. \li Qt.ImhEmailCharactersOnly - Only characters suitable for email addresses are allowed. \li Qt.ImhUrlCharactersOnly - Only characters suitable for URLs are allowed. \endlist Masks: \list \li Qt.ImhExclusiveInputMask - This mask yields nonzero if any of the exclusive flags are used. \endlist */ Qt::InputMethodHints QQuickTextEdit::inputMethodHints() const { Q_D(const QQuickTextEdit); return d->inputMethodHints; } void QQuickTextEdit::setInputMethodHints(Qt::InputMethodHints hints) { Q_D(QQuickTextEdit); if (hints == d->inputMethodHints) return; d->inputMethodHints = hints; updateInputMethod(Qt::ImHints); emit inputMethodHintsChanged(); } void QQuickTextEdit::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) { Q_D(QQuickTextEdit); if (newGeometry.width() != oldGeometry.width() && d->wrapMode != NoWrap && !d->inLayout) updateSize(); QQuickImplicitSizeItem::geometryChanged(newGeometry, oldGeometry); } /*! Ensures any delayed caching or data loading the class needs to performed is complete. */ void QQuickTextEdit::componentComplete() { Q_D(QQuickTextEdit); QQuickImplicitSizeItem::componentComplete(); d->document->setBaseUrl(baseUrl(), d->richText); if (d->dirty) { d->determineHorizontalAlignment(); d->updateDefaultTextOption(); updateSize(); d->dirty = false; } if (d->cursorComponent && d->cursorComponent->isReady()) loadCursorDelegate(); } /*! \qmlproperty bool QtQuick2::TextEdit::selectByMouse Defaults to false. If true, the user can use the mouse to select text in some platform-specific way. Note that for some platforms this may not be an appropriate interaction (eg. may conflict with how the text needs to behave inside a Flickable. */ bool QQuickTextEdit::selectByMouse() const { Q_D(const QQuickTextEdit); return d->selectByMouse; } void QQuickTextEdit::setSelectByMouse(bool on) { Q_D(QQuickTextEdit); if (d->selectByMouse != on) { d->selectByMouse = on; setKeepMouseGrab(on); if (on) setTextInteractionFlags(d->control->textInteractionFlags() | Qt::TextSelectableByMouse); else setTextInteractionFlags(d->control->textInteractionFlags() & ~Qt::TextSelectableByMouse); emit selectByMouseChanged(on); } } /*! \qmlproperty enum QtQuick2::TextEdit::mouseSelectionMode Specifies how text should be selected using a mouse. \list \li TextEdit.SelectCharacters - The selection is updated with individual characters. (Default) \li TextEdit.SelectWords - The selection is updated with whole words. \endlist This property only applies when \l selectByMouse is true. */ QQuickTextEdit::SelectionMode QQuickTextEdit::mouseSelectionMode() const { Q_D(const QQuickTextEdit); return d->mouseSelectionMode; } void QQuickTextEdit::setMouseSelectionMode(SelectionMode mode) { Q_D(QQuickTextEdit); if (d->mouseSelectionMode != mode) { d->mouseSelectionMode = mode; d->control->setWordSelectionEnabled(mode == SelectWords); emit mouseSelectionModeChanged(mode); } } /*! \qmlproperty bool QtQuick2::TextEdit::readOnly Whether the user can interact with the TextEdit item. If this property is set to true the text cannot be edited by user interaction. By default this property is false. */ void QQuickTextEdit::setReadOnly(bool r) { Q_D(QQuickTextEdit); if (r == isReadOnly()) return; setFlag(QQuickItem::ItemAcceptsInputMethod, !r); Qt::TextInteractionFlags flags = Qt::LinksAccessibleByMouse; if (d->selectByMouse) flags = flags | Qt::TextSelectableByMouse; if (!r) flags = flags | Qt::TextSelectableByKeyboard | Qt::TextEditable; d->control->setTextInteractionFlags(flags); if (!r) d->control->moveCursor(QTextCursor::End); updateInputMethod(Qt::ImEnabled); q_canPasteChanged(); emit readOnlyChanged(r); } bool QQuickTextEdit::isReadOnly() const { Q_D(const QQuickTextEdit); return !(d->control->textInteractionFlags() & Qt::TextEditable); } /*! Sets how the text edit should interact with user input to the given \a flags. */ void QQuickTextEdit::setTextInteractionFlags(Qt::TextInteractionFlags flags) { Q_D(QQuickTextEdit); d->control->setTextInteractionFlags(flags); } /*! Returns the flags specifying how the text edit should interact with user input. */ Qt::TextInteractionFlags QQuickTextEdit::textInteractionFlags() const { Q_D(const QQuickTextEdit); return d->control->textInteractionFlags(); } /*! \qmlproperty rectangle QtQuick2::TextEdit::cursorRectangle The rectangle where the standard text cursor is rendered within the text edit. Read-only. The position and height of a custom cursorDelegate are updated to follow the cursorRectangle automatically when it changes. The width of the delegate is unaffected by changes in the cursor rectangle. */ QRectF QQuickTextEdit::cursorRectangle() const { Q_D(const QQuickTextEdit); return d->control->cursorRect().translated(0, d->yoff); } bool QQuickTextEdit::event(QEvent *event) { Q_D(QQuickTextEdit); if (event->type() == QEvent::ShortcutOverride) { d->control->processEvent(event, QPointF(0, -d->yoff)); return event->isAccepted(); } return QQuickImplicitSizeItem::event(event); } /*! \overload Handles the given key \a event. */ void QQuickTextEdit::keyPressEvent(QKeyEvent *event) { Q_D(QQuickTextEdit); d->control->processEvent(event, QPointF(0, -d->yoff)); if (!event->isAccepted()) QQuickImplicitSizeItem::keyPressEvent(event); } /*! \overload Handles the given key \a event. */ void QQuickTextEdit::keyReleaseEvent(QKeyEvent *event) { Q_D(QQuickTextEdit); d->control->processEvent(event, QPointF(0, -d->yoff)); if (!event->isAccepted()) QQuickImplicitSizeItem::keyReleaseEvent(event); } /*! \qmlmethod void QtQuick2::TextEdit::deselect() Removes active text selection. */ void QQuickTextEdit::deselect() { Q_D(QQuickTextEdit); QTextCursor c = d->control->textCursor(); c.clearSelection(); d->control->setTextCursor(c); } /*! \qmlmethod void QtQuick2::TextEdit::selectAll() Causes all text to be selected. */ void QQuickTextEdit::selectAll() { Q_D(QQuickTextEdit); d->control->selectAll(); } /*! \qmlmethod void QtQuick2::TextEdit::selectWord() Causes the word closest to the current cursor position to be selected. */ void QQuickTextEdit::selectWord() { Q_D(QQuickTextEdit); QTextCursor c = d->control->textCursor(); c.select(QTextCursor::WordUnderCursor); d->control->setTextCursor(c); } /*! \qmlmethod void QtQuick2::TextEdit::select(int start, int end) Causes the text from \a start to \a end to be selected. If either start or end is out of range, the selection is not changed. After calling this, selectionStart will become the lesser and selectionEnd will become the greater (regardless of the order passed to this method). \sa selectionStart, selectionEnd */ void QQuickTextEdit::select(int start, int end) { Q_D(QQuickTextEdit); if (start < 0 || end < 0 || start >= d->document->characterCount() || end >= d->document->characterCount()) return; QTextCursor cursor = d->control->textCursor(); cursor.beginEditBlock(); cursor.setPosition(start, QTextCursor::MoveAnchor); cursor.setPosition(end, QTextCursor::KeepAnchor); cursor.endEditBlock(); d->control->setTextCursor(cursor); // QTBUG-11100 updateSelectionMarkers(); } /*! \qmlmethod void QtQuick2::TextEdit::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 QQuickTextEdit::isRightToLeft(int start, int end) { if (start > end) { qmlInfo(this) << "isRightToLeft(start, end) called with the end property being smaller than the start."; return false; } else { return getText(start, end).isRightToLeft(); } } #ifndef QT_NO_CLIPBOARD /*! \qmlmethod QtQuick2::TextEdit::cut() Moves the currently selected text to the system clipboard. */ void QQuickTextEdit::cut() { Q_D(QQuickTextEdit); d->control->cut(); } /*! \qmlmethod QtQuick2::TextEdit::copy() Copies the currently selected text to the system clipboard. */ void QQuickTextEdit::copy() { Q_D(QQuickTextEdit); d->control->copy(); } /*! \qmlmethod QtQuick2::TextEdit::paste() Replaces the currently selected text by the contents of the system clipboard. */ void QQuickTextEdit::paste() { Q_D(QQuickTextEdit); d->control->paste(); } #endif // QT_NO_CLIPBOARD /*! Undoes the last operation if undo is \l {canUndo}{available}. Deselects any current selection, and updates the selection start to the current cursor position. */ void QQuickTextEdit::undo() { Q_D(QQuickTextEdit); d->control->undo(); } /*! Redoes the last operation if redo is \l {canRedo}{available}. */ void QQuickTextEdit::redo() { Q_D(QQuickTextEdit); d->control->redo(); } /*! \overload Handles the given mouse \a event. */ void QQuickTextEdit::mousePressEvent(QMouseEvent *event) { Q_D(QQuickTextEdit); d->control->processEvent(event, QPointF(0, -d->yoff)); if (d->focusOnPress){ bool hadActiveFocus = hasActiveFocus(); forceActiveFocus(); // re-open input panel on press if already focused if (hasActiveFocus() && hadActiveFocus && !isReadOnly()) openSoftwareInputPanel(); } if (!event->isAccepted()) QQuickImplicitSizeItem::mousePressEvent(event); } /*! \overload Handles the given mouse \a event. */ void QQuickTextEdit::mouseReleaseEvent(QMouseEvent *event) { Q_D(QQuickTextEdit); d->control->processEvent(event, QPointF(0, -d->yoff)); if (!event->isAccepted()) QQuickImplicitSizeItem::mouseReleaseEvent(event); } /*! \overload Handles the given mouse \a event. */ void QQuickTextEdit::mouseDoubleClickEvent(QMouseEvent *event) { Q_D(QQuickTextEdit); d->control->processEvent(event, QPointF(0, -d->yoff)); if (!event->isAccepted()) QQuickImplicitSizeItem::mouseDoubleClickEvent(event); } /*! \overload Handles the given mouse \a event. */ void QQuickTextEdit::mouseMoveEvent(QMouseEvent *event) { Q_D(QQuickTextEdit); d->control->processEvent(event, QPointF(0, -d->yoff)); if (!event->isAccepted()) QQuickImplicitSizeItem::mouseMoveEvent(event); } /*! \overload Handles the given input method \a event. */ void QQuickTextEdit::inputMethodEvent(QInputMethodEvent *event) { Q_D(QQuickTextEdit); const bool wasComposing = isInputMethodComposing(); d->control->processEvent(event, QPointF(0, -d->yoff)); if (wasComposing != isInputMethodComposing()) emit inputMethodComposingChanged(); } void QQuickTextEdit::itemChange(ItemChange change, const ItemChangeData &value) { if (change == ItemActiveFocusHasChanged) { setCursorVisible(value.boolValue); // ### refactor: focus handling && d->canvas && d->canvas->hasFocus()); if (value.boolValue) { q_updateAlignment(); connect(qApp->inputMethod(), SIGNAL(inputDirectionChanged(Qt::LayoutDirection)), this, SLOT(q_updateAlignment())); } else { disconnect(qApp->inputMethod(), SIGNAL(inputDirectionChanged(Qt::LayoutDirection)), this, SLOT(q_updateAlignment())); } } QQuickItem::itemChange(change, value); } /*! \overload Returns the value of the given \a property. */ QVariant QQuickTextEdit::inputMethodQuery(Qt::InputMethodQuery property) const { Q_D(const QQuickTextEdit); QVariant v; switch (property) { case Qt::ImEnabled: v = (bool)(flags() & ItemAcceptsInputMethod); break; case Qt::ImHints: v = (int)inputMethodHints(); break; default: v = d->control->inputMethodQuery(property); break; } return v; } void QQuickTextEdit::triggerPreprocess() { Q_D(QQuickTextEdit); if (d->updateType == QQuickTextEditPrivate::UpdateNone) d->updateType = QQuickTextEditPrivate::UpdateOnlyPreprocess; update(); } QSGNode *QQuickTextEdit::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *updatePaintNodeData) { Q_UNUSED(updatePaintNodeData); Q_D(QQuickTextEdit); if (d->updateType != QQuickTextEditPrivate::UpdatePaintNode && oldNode != 0) { // Update done in preprocess() in the nodes d->updateType = QQuickTextEditPrivate::UpdateNone; return oldNode; } d->updateType = QQuickTextEditPrivate::UpdateNone; QSGNode *currentNode = oldNode; if (oldNode == 0 || d->documentDirty) { d->documentDirty = false; #if defined(Q_OS_MAC) // Make sure document is relayouted in the paint node on Mac // to avoid crashes due to the font engines created in the // shaping process d->document->markContentsDirty(0, d->document->characterCount()); #endif QQuickTextNode *node = 0; if (oldNode == 0) { node = new QQuickTextNode(QQuickItemPrivate::get(this)->sceneGraphContext(), this); currentNode = node; } else { node = static_cast(oldNode); } node->deleteContent(); node->setMatrix(QMatrix4x4()); QRectF bounds = boundingRect(); node->addTextDocument(bounds.topLeft(), d->document, d->color, QQuickText::Normal, QColor(), QColor(), d->selectionColor, d->selectedTextColor, selectionStart(), selectionEnd() - 1); // selectionEnd() returns first char after // selection #if defined(Q_OS_MAC) // We also need to make sure the document layout is redone when // control is returned to the main thread, as all the font engines // are now owned by the rendering thread d->document->markContentsDirty(0, d->document->characterCount()); #endif } if (d->cursorComponent == 0 && !isReadOnly()) { QQuickTextNode *node = static_cast(currentNode); QColor color = (!d->cursorVisible || !d->control->cursorOn()) ? QColor(0, 0, 0, 0) : d->color; if (node->cursorNode() == 0) { node->setCursor(cursorRectangle(), color); } else { node->cursorNode()->setRect(cursorRectangle()); node->cursorNode()->setColor(color); } } return currentNode; } /*! \qmlproperty bool QtQuick2::TextEdit::smooth This property holds whether the text is smoothly scaled or transformed. Smooth filtering gives better visual quality, but is slower. If the item is displayed at its natural size, this property has no visual or performance effect. \note Generally scaling artifacts are only visible if the item is stationary on the screen. A common pattern when animating an item is to disable smooth filtering at the beginning of the animation and reenable it at the conclusion. */ /*! \qmlproperty bool QtQuick2::TextEdit::canPaste Returns true if the TextEdit is writable and the content of the clipboard is suitable for pasting into the TextEdit. */ bool QQuickTextEdit::canPaste() const { Q_D(const QQuickTextEdit); if (!d->canPasteValid) { const_cast(d)->canPaste = d->control->canPaste(); const_cast(d)->canPasteValid = true; } return d->canPaste; } /*! \qmlproperty bool QtQuick2::TextEdit::canUndo Returns true if the TextEdit is writable and there are previous operations that can be undone. */ bool QQuickTextEdit::canUndo() const { Q_D(const QQuickTextEdit); return d->document->isUndoAvailable(); } /*! \qmlproperty bool QtQuick2::TextEdit::canRedo Returns true if the TextEdit is writable and there are \l {undo}{undone} operations that can be redone. */ bool QQuickTextEdit::canRedo() const { Q_D(const QQuickTextEdit); return d->document->isRedoAvailable(); } /*! \qmlproperty bool QtQuick2::TextEdit::inputMethodComposing This property holds whether the TextEdit has partial text input from an input method. While it is composing an input method may rely on mouse or key events from the TextEdit 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 QQuickTextEdit::isInputMethodComposing() const { Q_D(const QQuickTextEdit); if (QTextLayout *layout = d->control->textCursor().block().layout()) return layout->preeditAreaText().length() > 0; return false; } void QQuickTextEditPrivate::init() { Q_Q(QQuickTextEdit); q->setSmooth(smooth); q->setAcceptedMouseButtons(Qt::LeftButton); q->setFlag(QQuickItem::ItemAcceptsInputMethod); q->setFlag(QQuickItem::ItemHasContents); document = new QQuickTextDocumentWithImageResources(q); control = new QQuickTextControl(document, q); control->setTextInteractionFlags(Qt::LinksAccessibleByMouse | Qt::TextSelectableByKeyboard | Qt::TextEditable); control->setAcceptRichText(false); control->setCursorIsFocusIndicator(true); FAST_CONNECT(control, SIGNAL(updateRequest(QRectF)), q, SLOT(updateDocument())); FAST_CONNECT(control, SIGNAL(updateCursorRequest()), q, SLOT(updateCursor())); FAST_CONNECT(control, SIGNAL(textChanged()), q, SLOT(q_textChanged())); FAST_CONNECT(control, SIGNAL(selectionChanged()), q, SIGNAL(selectionChanged())); FAST_CONNECT(control, SIGNAL(selectionChanged()), q, SLOT(updateSelectionMarkers())); FAST_CONNECT(control, SIGNAL(cursorPositionChanged()), q, SLOT(updateSelectionMarkers())); FAST_CONNECT(control, SIGNAL(cursorPositionChanged()), q, SIGNAL(cursorPositionChanged())); FAST_CONNECT(control, SIGNAL(cursorRectangleChanged()), q, SLOT(moveCursorDelegate())); FAST_CONNECT(control, SIGNAL(linkActivated(QString)), q, SIGNAL(linkActivated(QString))); #ifndef QT_NO_CLIPBOARD FAST_CONNECT(QGuiApplication::clipboard(), SIGNAL(dataChanged()), q, SLOT(q_canPasteChanged())); #endif FAST_CONNECT(document, SIGNAL(undoAvailable(bool)), q, SIGNAL(canUndoChanged())); FAST_CONNECT(document, SIGNAL(redoAvailable(bool)), q, SIGNAL(canRedoChanged())); FAST_CONNECT(document, SIGNAL(imagesLoaded()), q, SLOT(updateSize())); document->setDefaultFont(font); document->setDocumentMargin(textMargin); document->setUndoRedoEnabled(false); // flush undo buffer. document->setUndoRedoEnabled(true); updateDefaultTextOption(); } void QQuickTextEdit::q_textChanged() { Q_D(QQuickTextEdit); d->textCached = false; d->rightToLeftText = d->document->begin().layout()->engine()->isRightToLeft(); d->determineHorizontalAlignment(); d->updateDefaultTextOption(); updateSize(); updateTotalLines(); emit textChanged(); } void QQuickTextEdit::moveCursorDelegate() { Q_D(QQuickTextEdit); d->determineHorizontalAlignment(); updateInputMethod(); emit cursorRectangleChanged(); if (!d->cursor) return; QRectF cursorRect = cursorRectangle(); d->cursor->setX(cursorRect.x()); d->cursor->setY(cursorRect.y()); } void QQuickTextEdit::updateSelectionMarkers() { Q_D(QQuickTextEdit); if (d->lastSelectionStart != d->control->textCursor().selectionStart()) { d->lastSelectionStart = d->control->textCursor().selectionStart(); emit selectionStartChanged(); } if (d->lastSelectionEnd != d->control->textCursor().selectionEnd()) { d->lastSelectionEnd = d->control->textCursor().selectionEnd(); emit selectionEndChanged(); } } QRectF QQuickTextEdit::boundingRect() const { Q_D(const QQuickTextEdit); QRectF r = QQuickImplicitSizeItem::boundingRect(); int cursorWidth = 1; if (d->cursor) cursorWidth = d->cursor->width(); if (!d->document->isEmpty()) cursorWidth += 3;// ### Need a better way of accounting for space between char and cursor // Could include font max left/right bearings to either side of rectangle. r.setRight(r.right() + cursorWidth); return r.translated(0,d->yoff); } qreal QQuickTextEditPrivate::getImplicitWidth() const { Q_Q(const QQuickTextEdit); 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(this)->requireImplicitWidth = true; const_cast(q)->updateSize(); } return implicitWidth; } //### we should perhaps be a bit smarter here -- depending on what has changed, we shouldn't // need to do all the calculations each time void QQuickTextEdit::updateSize() { Q_D(QQuickTextEdit); if (isComponentComplete()) { qreal naturalWidth = d->implicitWidth; // ### 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(); const bool wasInLayout = d->inLayout; d->inLayout = true; setImplicitWidth(naturalWidth); d->inLayout = wasInLayout; if (d->inLayout) // probably the result of a binding loop, but by letting it return; // get this far we'll get a warning to that effect. } if (d->document->textWidth() != width()) d->document->setTextWidth(width()); } else { d->document->setTextWidth(-1); } QFontMetricsF fm(d->font); qreal dy = height(); dy -= d->document->size().height(); qreal nyoff; if (heightValid()) { if (d->vAlign == AlignBottom) nyoff = dy; else if (d->vAlign == AlignVCenter) nyoff = dy/2; else nyoff = 0; } else { nyoff = 0; } if (nyoff != d->yoff) d->yoff = nyoff; setBaselineOffset(fm.ascent() + d->yoff + d->textMargin); //### need to comfirm cost of always setting these qreal newWidth = d->document->idealWidth(); 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. qreal iWidth = -1; if (!widthValid() && !d->requireImplicitWidth) iWidth = newWidth; qreal newHeight = d->document->isEmpty() ? fm.height() : d->document->size().height(); if (iWidth > -1) setImplicitSize(iWidth, newHeight); else setImplicitHeight(newHeight); QSizeF size(newWidth, newHeight); if (d->contentSize != size) { d->contentSize = size; emit contentSizeChanged(); } } else { d->dirty = true; } updateDocument(); } void QQuickTextEdit::updateDocument() { Q_D(QQuickTextEdit); d->documentDirty = true; if (isComponentComplete()) { d->updateType = QQuickTextEditPrivate::UpdatePaintNode; update(); } } void QQuickTextEdit::updateCursor() { Q_D(QQuickTextEdit); if (isComponentComplete()) { d->updateType = QQuickTextEditPrivate::UpdatePaintNode; update(); } } void QQuickTextEdit::q_updateAlignment() { Q_D(QQuickTextEdit); if (d->determineHorizontalAlignment()) { d->updateDefaultTextOption(); moveCursorDelegate(); } } void QQuickTextEdit::updateTotalLines() { Q_D(QQuickTextEdit); 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 QQuickTextEditPrivate::updateDefaultTextOption() { Q_Q(QQuickTextEdit); QTextOption opt = document->defaultTextOption(); int oldAlignment = opt.alignment(); QQuickTextEdit::HAlignment horizontalAlignment = q->effectiveHAlign(); if (rightToLeftText) { if (horizontalAlignment == QQuickTextEdit::AlignLeft) horizontalAlignment = QQuickTextEdit::AlignRight; else if (horizontalAlignment == QQuickTextEdit::AlignRight) horizontalAlignment = QQuickTextEdit::AlignLeft; } opt.setAlignment((Qt::Alignment)(int)(horizontalAlignment | vAlign)); QTextOption::WrapMode oldWrapMode = opt.wrapMode(); opt.setWrapMode(QTextOption::WrapMode(wrapMode)); opt.setUseDesignMetrics(true); if (oldWrapMode == opt.wrapMode() && oldAlignment == opt.alignment()) return; document->setDefaultTextOption(opt); } /*! \qmlmethod void QtQuick2::TextEdit::openSoftwareInputPanel() Opens software input panels like virtual keyboards for typing, useful for customizing when you want the input keyboard to be shown and hidden in your application. By default the opening of input panels follows the platform style. Input panels are always closed if no editor has active focus. You can disable the automatic behavior by setting the property \c activeFocusOnPress to false and use functions openSoftwareInputPanel() and closeSoftwareInputPanel() to implement the behavior you want. Only relevant on platforms, which provide virtual keyboards. \code import QtQuick 2.0 TextEdit { id: textEdit text: "Hello world!" activeFocusOnPress: false MouseArea { anchors.fill: parent onClicked: { if (!textEdit.activeFocus) { textEdit.forceActiveFocus(); textEdit.openSoftwareInputPanel(); } else { textEdit.focus = false; } } onPressAndHold: textEdit.closeSoftwareInputPanel(); } } \endcode */ void QQuickTextEdit::openSoftwareInputPanel() { if (qGuiApp) qGuiApp->inputMethod()->show(); } /*! \qmlmethod void QtQuick2::TextEdit::closeSoftwareInputPanel() Closes a software input panel like a virtual keyboard shown on the screen, useful for customizing when you want the input keyboard to be shown and hidden in your application. By default the opening of input panels follows the platform style. Input panels are always closed if no editor has active focus. You can disable the automatic behavior by setting the property \c activeFocusOnPress to false and use functions openSoftwareInputPanel() and closeSoftwareInputPanel() to implement the behavior you want. Only relevant on platforms, which provide virtual keyboards. \code import QtQuick 2.0 TextEdit { id: textEdit text: "Hello world!" activeFocusOnPress: false MouseArea { anchors.fill: parent onClicked: { if (!textEdit.activeFocus) { textEdit.forceActiveFocus(); textEdit.openSoftwareInputPanel(); } else { textEdit.focus = false; } } onPressAndHold: textEdit.closeSoftwareInputPanel(); } } \endcode */ void QQuickTextEdit::closeSoftwareInputPanel() { if (qGuiApp) qGuiApp->inputMethod()->hide(); } void QQuickTextEdit::focusInEvent(QFocusEvent *event) { Q_D(const QQuickTextEdit); if (d->focusOnPress && !isReadOnly()) openSoftwareInputPanel(); QQuickImplicitSizeItem::focusInEvent(event); } void QQuickTextEdit::q_canPasteChanged() { Q_D(QQuickTextEdit); bool old = d->canPaste; d->canPaste = d->control->canPaste(); bool changed = old!=d->canPaste || !d->canPasteValid; d->canPasteValid = true; if (changed) emit canPasteChanged(); } /*! \qmlmethod string QtQuick2::TextEdit::getText(int start, int end) Returns the section of text that is between the \a start and \a end positions. The returned text does not include any rich text formatting. */ QString QQuickTextEdit::getText(int start, int end) const { Q_D(const QQuickTextEdit); start = qBound(0, start, d->document->characterCount() - 1); end = qBound(0, end, d->document->characterCount() - 1); QTextCursor cursor(d->document); cursor.setPosition(start, QTextCursor::MoveAnchor); cursor.setPosition(end, QTextCursor::KeepAnchor); return cursor.selectedText(); } /*! \qmlmethod string QtQuick2::TextEdit::getFormattedText(int start, int end) Returns the section of text that is between the \a start and \a end positions. The returned text will be formatted according the \l textFormat property. */ QString QQuickTextEdit::getFormattedText(int start, int end) const { Q_D(const QQuickTextEdit); start = qBound(0, start, d->document->characterCount() - 1); end = qBound(0, end, d->document->characterCount() - 1); QTextCursor cursor(d->document); cursor.setPosition(start, QTextCursor::MoveAnchor); cursor.setPosition(end, QTextCursor::KeepAnchor); if (d->richText) { #ifndef QT_NO_TEXTHTMLPARSER return cursor.selection().toHtml(); #else return cursor.selection().toPlainText(); #endif } else { return cursor.selection().toPlainText(); } } /*! \qmlmethod void QtQuick2::TextEdit::insert(int position, string text) Inserts \a text into the TextEdit at position. */ void QQuickTextEdit::insert(int position, const QString &text) { Q_D(QQuickTextEdit); if (position < 0 || position >= d->document->characterCount()) return; QTextCursor cursor(d->document); cursor.setPosition(position); d->richText = d->richText || (d->format == AutoText && Qt::mightBeRichText(text)); if (d->richText) { #ifndef QT_NO_TEXTHTMLPARSER cursor.insertHtml(text); #else cursor.insertText(text); #endif } else { cursor.insertText(text); } } /*! \qmlmethod string QtQuick2::TextEdit::getText(int start, int end) Removes the section of text that is between the \a start and \a end positions from the TextEdit. */ void QQuickTextEdit::remove(int start, int end) { Q_D(QQuickTextEdit); start = qBound(0, start, d->document->characterCount() - 1); end = qBound(0, end, d->document->characterCount() - 1); QTextCursor cursor(d->document); cursor.setPosition(start, QTextCursor::MoveAnchor); cursor.setPosition(end, QTextCursor::KeepAnchor); cursor.removeSelectedText(); } QT_END_NAMESPACE