/**************************************************************************** ** ** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies). ** All rights reserved. ** Contact: Nokia Corporation (qt-info@nokia.com) ** ** This file is part of the QtDeclarative module of the Qt Toolkit. ** ** $QT_BEGIN_LICENSE:LGPL$ ** No Commercial Usage ** This file contains pre-release code and may not be distributed. ** You may use this file in accordance with the terms and conditions ** contained in the Technology Preview License Agreement accompanying ** this package. ** ** GNU Lesser General Public License Usage ** Alternatively, 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. ** ** If you have questions regarding the use of this file, please contact ** Nokia at qt-info@nokia.com. ** ** ** ** ** ** ** ** ** $QT_END_LICENSE$ ** ****************************************************************************/ #include "private/qdeclarativetextinput_p.h" #include "private/qdeclarativetextinput_p_p.h" #include #include #include #include #include #include QT_BEGIN_NAMESPACE /*! \qmlclass TextInput QDeclarativeTextInput \since 4.7 \brief The TextInput item allows you to add an editable line of text to a scene. \inherits Item TextInput can only display a single line of text, and can only display plain text. However it can provide addition input constraints on the text. Input constraints include setting a QValidator, an input mask, or a maximum input length. On Mac OS X, the Up/Down key bindings for Home/End are explicitly disabled. If you want such bindings (on any platform), you will need to construct them in QML. */ QDeclarativeTextInput::QDeclarativeTextInput(QDeclarativeItem* parent) : QDeclarativePaintedItem(*(new QDeclarativeTextInputPrivate), parent) { Q_D(QDeclarativeTextInput); d->init(); } QDeclarativeTextInput::~QDeclarativeTextInput() { } /*! \qmlproperty string TextInput::text The text in the TextInput. */ QString QDeclarativeTextInput::text() const { Q_D(const QDeclarativeTextInput); return d->control->text(); } void QDeclarativeTextInput::setText(const QString &s) { Q_D(QDeclarativeTextInput); if(s == text()) return; d->control->setText(s); //emit textChanged(); } /*! \qmlproperty string TextInput::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 TextInput::font.bold Sets whether the font weight is bold. */ /*! \qmlproperty enumeration TextInput::font.weight Sets the font's weight. The weight can be one of: \list \o Font.Light \o Font.Normal - the default \o Font.DemiBold \o Font.Bold \o Font.Black \endlist \qml TextInput { text: "Hello"; font.weight: Font.DemiBold } \endqml */ /*! \qmlproperty bool TextInput::font.italic Sets whether the font has an italic style. */ /*! \qmlproperty bool TextInput::font.underline Sets whether the text is underlined. */ /*! \qmlproperty bool TextInput::font.outline Sets whether the font has an outline style. */ /*! \qmlproperty bool TextInput::font.strikeout Sets whether the font has a strikeout style. */ /*! \qmlproperty real TextInput::font.pointSize Sets the font size in points. The point size must be greater than zero. */ /*! \qmlproperty int TextInput::font.pixelSize Sets the font size in pixels. Using this function makes the font device dependent. Use \c pointSize to set the size of the font in a device independent manner. */ /*! \qmlproperty real TextInput::font.letterSpacing Sets the letter spacing for the font. Letter spacing changes the default spacing between individual letters in the font. A value of 100 will keep the spacing unchanged; a value of 200 will enlarge the spacing after a character by the width of the character itself. */ /*! \qmlproperty real TextInput::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 TextInput::font.capitalization Sets the capitalization for the text. \list \o Font.MixedCase - This is the normal text rendering option where no capitalization change is applied. \o Font.AllUppercase - This alters the text to be rendered in all uppercase type. \o Font.AllLowercase - This alters the text to be rendered in all lowercase type. \o Font.SmallCaps - This alters the text to be rendered in small-caps type. \o Font.Capitalize - This alters the text to be rendered with the first character of each word as an uppercase character. \endlist \qml TextInput { text: "Hello"; font.capitalization: Font.AllLowercase } \endqml */ QFont QDeclarativeTextInput::font() const { Q_D(const QDeclarativeTextInput); return d->font; } void QDeclarativeTextInput::setFont(const QFont &font) { Q_D(QDeclarativeTextInput); if (d->font == font) return; d->font = font; d->control->setFont(d->font); if(d->cursorItem){ d->cursorItem->setHeight(QFontMetrics(d->font).height()); moveCursor(); } updateSize(); emit fontChanged(d->font); } /*! \qmlproperty color TextInput::color The text color. */ QColor QDeclarativeTextInput::color() const { Q_D(const QDeclarativeTextInput); return d->color; } void QDeclarativeTextInput::setColor(const QColor &c) { Q_D(QDeclarativeTextInput); d->color = c; } /*! \qmlproperty color TextInput::selectionColor The text highlight color, used behind selections. */ QColor QDeclarativeTextInput::selectionColor() const { Q_D(const QDeclarativeTextInput); return d->selectionColor; } void QDeclarativeTextInput::setSelectionColor(const QColor &color) { Q_D(QDeclarativeTextInput); if (d->selectionColor == color) return; d->selectionColor = color; QPalette p = d->control->palette(); p.setColor(QPalette::Highlight, d->selectionColor); d->control->setPalette(p); emit selectionColorChanged(color); } /*! \qmlproperty color TextInput::selectedTextColor The highlighted text color, used in selections. */ QColor QDeclarativeTextInput::selectedTextColor() const { Q_D(const QDeclarativeTextInput); return d->selectedTextColor; } void QDeclarativeTextInput::setSelectedTextColor(const QColor &color) { Q_D(QDeclarativeTextInput); if (d->selectedTextColor == color) return; d->selectedTextColor = color; QPalette p = d->control->palette(); p.setColor(QPalette::HighlightedText, d->selectedTextColor); d->control->setPalette(p); emit selectedTextColorChanged(color); } /*! \qmlproperty enumeration TextInput::horizontalAlignment Sets the horizontal alignment of the text within the TextInput item's width and height. By default, the text is left aligned. 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 manually to something larger, TextInput will always be top aligned vertically. You can use anchors to align it however you want within another item. The valid values for \c horizontalAlignment are \c TextInput.AlignLeft, \c TextInput.AlignRight and \c TextInput.AlignHCenter. */ QDeclarativeTextInput::HAlignment QDeclarativeTextInput::hAlign() const { Q_D(const QDeclarativeTextInput); return d->hAlign; } void QDeclarativeTextInput::setHAlign(HAlignment align) { Q_D(QDeclarativeTextInput); if(align == d->hAlign) return; d->hAlign = align; updateRect(); emit horizontalAlignmentChanged(d->hAlign); } bool QDeclarativeTextInput::isReadOnly() const { Q_D(const QDeclarativeTextInput); return d->control->isReadOnly(); } void QDeclarativeTextInput::setReadOnly(bool ro) { Q_D(QDeclarativeTextInput); if (d->control->isReadOnly() == ro) return; d->control->setReadOnly(ro); emit readOnlyChanged(ro); } int QDeclarativeTextInput::maxLength() const { Q_D(const QDeclarativeTextInput); return d->control->maxLength(); } void QDeclarativeTextInput::setMaxLength(int ml) { Q_D(QDeclarativeTextInput); if (d->control->maxLength() == ml) return; d->control->setMaxLength(ml); emit maximumLengthChanged(ml); } /*! \qmlproperty bool TextInput::cursorVisible Set to true when the TextInput shows a cursor. This property is set and unset when the TextInput gets focus, so that other properties can be bound to whether the cursor is currently showing. As it gets set and unset automatically, when you set the value yourself you must keep in mind that your value may be overwritten. It can be set directly in script, for example if a KeyProxy might forward keys to it and you desire it to look active when this happens (but without actually giving it the focus). It should not be set directly on the element, like in the below QML, as the specified value will be overridden an lost on focus changes. \code TextInput { text: "Text" cursorVisible: false } \endcode In the above snippet the cursor will still become visible when the TextInput gains focus. */ bool QDeclarativeTextInput::isCursorVisible() const { Q_D(const QDeclarativeTextInput); return d->cursorVisible; } void QDeclarativeTextInput::setCursorVisible(bool on) { Q_D(QDeclarativeTextInput); if (d->cursorVisible == on) return; d->cursorVisible = on; d->control->setCursorBlinkPeriod(on?QApplication::cursorFlashTime():0); //d->control should emit the cursor update regions emit cursorVisibleChanged(d->cursorVisible); } /*! \qmlproperty int TextInput::cursorPosition The position of the cursor in the TextInput. */ int QDeclarativeTextInput::cursorPosition() const { Q_D(const QDeclarativeTextInput); return d->control->cursor(); } void QDeclarativeTextInput::setCursorPosition(int cp) { Q_D(QDeclarativeTextInput); d->control->moveCursor(cp); } /*! \internal Returns a Rect which encompasses the cursor, but which may be larger than is required. Ignores custom cursor delegates. */ QRect QDeclarativeTextInput::cursorRect() const { Q_D(const QDeclarativeTextInput); return d->control->cursorRect(); } /*! \qmlproperty int TextInput::selectionStart The cursor position before the first character in the current selection. Setting this and selectionEnd allows you to specify a selection in the text edit. Note that if selectionStart == selectionEnd then there is no current selection. If you attempt to set selectionStart to a value outside of the current text, selectionStart will not be changed. \sa selectionEnd, cursorPosition, selectedText */ int QDeclarativeTextInput::selectionStart() const { Q_D(const QDeclarativeTextInput); return d->lastSelectionStart; } void QDeclarativeTextInput::setSelectionStart(int s) { Q_D(QDeclarativeTextInput); if(d->lastSelectionStart == s || s < 0 || s > text().length()) return; d->lastSelectionStart = s; d->control->setSelection(s, d->lastSelectionEnd - s); } /*! \qmlproperty int TextInput::selectionEnd The cursor position after the last character in the current selection. Setting this and selectionStart allows you to specify a selection in the text edit. Note that if selectionStart == selectionEnd then there is no current selection. If you attempt to set selectionEnd to a value outside of the current text, selectionEnd will not be changed. \sa selectionStart, cursorPosition, selectedText */ int QDeclarativeTextInput::selectionEnd() const { Q_D(const QDeclarativeTextInput); return d->lastSelectionEnd; } void QDeclarativeTextInput::setSelectionEnd(int s) { Q_D(QDeclarativeTextInput); if(d->lastSelectionEnd == s || s < 0 || s > text().length()) return; d->lastSelectionEnd = s; d->control->setSelection(d->lastSelectionStart, s - d->lastSelectionStart); } /*! \qmlproperty string TextInput::selectedText This read-only property provides the text currently selected in the text input. It is equivalent to the following snippet, but is faster and easier to use. \qml myTextInput.text.toString().substring(myTextInput.selectionStart, myTextInput.selectionEnd); \endqml */ QString QDeclarativeTextInput::selectedText() const { Q_D(const QDeclarativeTextInput); return d->control->selectedText(); } /*! \qmlproperty bool TextInput::focusOnPress Whether the TextInput should gain focus on a mouse press. By default this is set to true. */ bool QDeclarativeTextInput::focusOnPress() const { Q_D(const QDeclarativeTextInput); return d->focusOnPress; } void QDeclarativeTextInput::setFocusOnPress(bool b) { Q_D(QDeclarativeTextInput); if (d->focusOnPress == b) return; d->focusOnPress = b; emit focusOnPressChanged(d->focusOnPress); } /*! \qmlproperty bool TextInput::autoScroll Whether the TextInput should scroll when the text is longer than the width. By default this is set to true. */ bool QDeclarativeTextInput::autoScroll() const { Q_D(const QDeclarativeTextInput); return d->autoScroll; } void QDeclarativeTextInput::setAutoScroll(bool b) { Q_D(QDeclarativeTextInput); if (d->autoScroll == b) return; d->autoScroll = b; emit autoScrollChanged(d->autoScroll); } /*! \qmlclass IntValidator QIntValidator This element provides a validator for integer values */ /*! \qmlproperty int IntValidator::top This property holds the validator's highest acceptable value. By default, this property's value is derived from the highest signed integer available (typically 2147483647). */ /*! \qmlproperty int IntValidator::bottom This property holds the validator's lowest acceptable value. By default, this property's value is derived from the lowest signed integer available (typically -2147483647). */ /*! \qmlclass DoubleValidator QDoubleValidator This element provides a validator for non-integer numbers. */ /*! \qmlproperty real DoubleValidator::top This property holds the validator's maximum acceptable value. By default, this property contains a value of infinity. */ /*! \qmlproperty real DoubleValidator::bottom This property holds the validator's minimum acceptable value. By default, this property contains a value of -infinity. */ /*! \qmlproperty int DoubleValidator::decimals This property holds the validator's maximum number of digits after the decimal point. By default, this property contains a value of 1000. */ /*! \qmlproperty enumeration DoubleValidator::notation This property holds the notation of how a string can describe a number. The values for this property are DoubleValidator.StandardNotation or DoubleValidator.ScientificNotation. If this property is set to DoubleValidator.ScientificNotation, the written number may have an exponent part(i.e. 1.5E-2). By default, this property is set to DoubleValidator.ScientificNotation. */ /*! \qmlclass RegExpValidator QRegExpValidator This element provides a validator, which counts as valid any string which matches a specified regular expression. */ /*! \qmlproperty regExp RegExpValidator::regExp This property holds the regular expression used for validation. Note that this property should be a regular expression in JS syntax, e.g /a/ for the regular expression matching "a". By default, this property contains a regular expression with the pattern .* that matches any string. */ /*! \qmlproperty Validator TextInput::validator Allows you to set a validator on the TextInput. When a validator is set the TextInput will only accept input which leaves the text property in an acceptable or intermediate state. The accepted signal will only be sent if the text is in an acceptable state when enter is pressed. Currently supported validators are IntValidator, DoubleValidator and RegExpValidator. An example of using validators is shown below, which allows input of integers between 11 and 31 into the text input: \code import Qt 4.7 TextInput{ validator: IntValidator{bottom: 11; top: 31;} focus: true } \endcode \sa acceptableInput, inputMask */ QValidator* QDeclarativeTextInput::validator() const { Q_D(const QDeclarativeTextInput); //###const cast isn't good, but needed for property system? return const_cast(d->control->validator()); } void QDeclarativeTextInput::setValidator(QValidator* v) { Q_D(QDeclarativeTextInput); if (d->control->validator() == v) return; d->control->setValidator(v); if(!d->control->hasAcceptableInput()){ d->oldValidity = false; emit acceptableInputChanged(); } emit validatorChanged(); } /*! \qmlproperty string TextInput::inputMask Allows you to set an input mask on the TextInput, restricting the allowable text inputs. See QLineEdit::inputMask for further details, as the exact same mask strings are used by TextInput. \sa acceptableInput, validator */ QString QDeclarativeTextInput::inputMask() const { Q_D(const QDeclarativeTextInput); return d->control->inputMask(); } void QDeclarativeTextInput::setInputMask(const QString &im) { Q_D(QDeclarativeTextInput); if (d->control->inputMask() == im) return; d->control->setInputMask(im); emit inputMaskChanged(d->control->inputMask()); } /*! \qmlproperty bool TextInput::acceptableInput This property is always true unless a validator or input mask has been set. If a validator or input mask has been set, this property will only be true if the current text is acceptable to the validator or input mask as a final string (not as an intermediate string). */ bool QDeclarativeTextInput::hasAcceptableInput() const { Q_D(const QDeclarativeTextInput); return d->control->hasAcceptableInput(); } /*! \qmlproperty enumeration TextInput::echoMode Specifies how the text should be displayed in the TextInput. \list \o TextInput.Normal - Displays the text as it is. (Default) \o TextInput.Password - Displays asterixes instead of characters. \o TextInput.NoEcho - Displays nothing. \o TextInput.PasswordEchoOnEdit - Displays all but the current character as asterixes. \endlist */ QDeclarativeTextInput::EchoMode QDeclarativeTextInput::echoMode() const { Q_D(const QDeclarativeTextInput); return (QDeclarativeTextInput::EchoMode)d->control->echoMode(); } void QDeclarativeTextInput::setEchoMode(QDeclarativeTextInput::EchoMode echo) { Q_D(QDeclarativeTextInput); if (echoMode() == echo) return; Qt::InputMethodHints imHints = inputMethodHints(); if (echo == Password || echo == NoEcho) imHints |= Qt::ImhHiddenText; else imHints &= ~Qt::ImhHiddenText; if (echo != Normal) imHints |= (Qt::ImhNoAutoUppercase | Qt::ImhNoPredictiveText); else imHints &= ~(Qt::ImhNoAutoUppercase | Qt::ImhNoPredictiveText); setInputMethodHints(imHints); d->control->setEchoMode((uint)echo); update(); emit echoModeChanged(echoMode()); } /*! \qmlproperty Component TextInput::cursorDelegate The delegate for the cursor in the TextInput. If you set a cursorDelegate for a TextInput, 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 TextInput when a cursor is needed, and the x property 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 QDeclarativeItem or QDeclarativeItem derived item. */ QDeclarativeComponent* QDeclarativeTextInput::cursorDelegate() const { Q_D(const QDeclarativeTextInput); return d->cursorComponent; } void QDeclarativeTextInput::setCursorDelegate(QDeclarativeComponent* c) { Q_D(QDeclarativeTextInput); if (d->cursorComponent == c) return; d->cursorComponent = c; if(!c){ //note that the components are owned by something else disconnect(d->control, SIGNAL(cursorPositionChanged(int, int)), this, SLOT(moveCursor())); delete d->cursorItem; }else{ d->startCreatingCursor(); } emit cursorDelegateChanged(); } void QDeclarativeTextInputPrivate::startCreatingCursor() { Q_Q(QDeclarativeTextInput); q->connect(control, SIGNAL(cursorPositionChanged(int, int)), q, SLOT(moveCursor())); if(cursorComponent->isReady()){ q->createCursor(); }else if(cursorComponent->isLoading()){ q->connect(cursorComponent, SIGNAL(statusChanged(int)), q, SLOT(createCursor())); }else {//isError qmlInfo(q, cursorComponent->errors()) << QDeclarativeTextInput::tr("Could not load cursor delegate"); } } void QDeclarativeTextInput::createCursor() { Q_D(QDeclarativeTextInput); if(d->cursorComponent->isError()){ qmlInfo(this, d->cursorComponent->errors()) << tr("Could not load cursor delegate"); return; } if(!d->cursorComponent->isReady()) return; if(d->cursorItem) delete d->cursorItem; d->cursorItem = qobject_cast(d->cursorComponent->create()); if(!d->cursorItem){ qmlInfo(this, d->cursorComponent->errors()) << tr("Could not instantiate cursor delegate"); return; } QDeclarative_setParent_noEvent(d->cursorItem, this); d->cursorItem->setParentItem(this); d->cursorItem->setX(d->control->cursorToX()); d->cursorItem->setHeight(d->control->height()); } void QDeclarativeTextInput::moveCursor() { Q_D(QDeclarativeTextInput); if(!d->cursorItem) return; d->cursorItem->setX(d->control->cursorToX() - d->hscroll); } /*! \qmlmethod int TextInput::xToPosition(int x) This function returns the character position at x pixels from the left of the textInput. Position 0 is before the first character, position 1 is after the first character but before the second, and so on until position text.length, which is after all characters. 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. */ int QDeclarativeTextInput::xToPosition(int x) { Q_D(const QDeclarativeTextInput); return d->control->xToPos(x - d->hscroll); } void QDeclarativeTextInputPrivate::focusChanged(bool hasFocus) { Q_Q(QDeclarativeTextInput); focused = hasFocus; q->setCursorVisible(hasFocus); if(q->echoMode() == QDeclarativeTextInput::PasswordEchoOnEdit && !hasFocus) control->updatePasswordEchoEditing(false);//QLineControl sets it on key events, but doesn't deal with focus events if (!hasFocus) control->deselect(); QDeclarativeItemPrivate::focusChanged(hasFocus); } void QDeclarativeTextInput::keyPressEvent(QKeyEvent* ev) { Q_D(QDeclarativeTextInput); 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) ev->ignore(); }else{ d->control->processKeyEvent(ev); } if (!ev->isAccepted()) QDeclarativePaintedItem::keyPressEvent(ev); } void QDeclarativeTextInput::mousePressEvent(QGraphicsSceneMouseEvent *event) { Q_D(QDeclarativeTextInput); if(d->focusOnPress){ bool hadFocus = hasFocus(); QGraphicsItem *p = parentItem();//###Is there a better way to find my focus scope? while(p) { if (p->flags() & QGraphicsItem::ItemIsFocusScope) p->setFocus(); p = p->parentItem(); } setFocus(true); if (hasFocus() == hadFocus && d->showInputPanelOnFocus && !isReadOnly()) { // re-open input panel on press w already focused openSoftwareInputPanel(); } } bool mark = event->modifiers() & Qt::ShiftModifier; int cursor = d->xToPos(event->pos().x()); d->control->moveCursor(cursor, mark); event->setAccepted(true); } void QDeclarativeTextInput::mouseMoveEvent(QGraphicsSceneMouseEvent *event) { Q_D(QDeclarativeTextInput); if (d->selectByMouse) { d->control->moveCursor(d->xToPos(event->pos().x()), true); event->setAccepted(true); } else { QDeclarativePaintedItem::mouseMoveEvent(event); } } /*! \overload Handles the given mouse \a event. */ void QDeclarativeTextInput::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) { Q_D(QDeclarativeTextInput); d->control->processEvent(event); if (!event->isAccepted()) QDeclarativePaintedItem::mouseReleaseEvent(event); } bool QDeclarativeTextInput::event(QEvent* ev) { Q_D(QDeclarativeTextInput); //Anything we don't deal with ourselves, pass to the control bool handled = false; switch(ev->type()){ case QEvent::KeyPress: case QEvent::KeyRelease://###Should the control be doing anything with release? case QEvent::GraphicsSceneMousePress: case QEvent::GraphicsSceneMouseMove: case QEvent::GraphicsSceneMouseRelease: break; default: if (ev->type() == QEvent::GraphicsSceneMouseDoubleClick && !d->selectByMouse) break; handled = d->control->processEvent(ev); if (ev->type() == QEvent::InputMethod) updateSize(); } if(!handled) handled = QDeclarativePaintedItem::event(ev); return handled; } void QDeclarativeTextInput::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) { if (newGeometry.width() != oldGeometry.width()) updateSize(); QDeclarativePaintedItem::geometryChanged(newGeometry, oldGeometry); } void QDeclarativeTextInput::drawContents(QPainter *p, const QRect &r) { Q_D(QDeclarativeTextInput); p->setRenderHint(QPainter::TextAntialiasing, true); p->save(); p->setPen(QPen(d->color)); int flags = QLineControl::DrawText; if(!isReadOnly() && d->cursorVisible && !d->cursorItem) flags |= QLineControl::DrawCursor; if (d->control->hasSelectedText()) flags |= QLineControl::DrawSelections; QPoint offset = QPoint(0,0); QFontMetrics fm = QFontMetrics(d->font); int cix = qRound(d->control->cursorToX()); QRect br(boundingRect().toRect()); //###Is this using bearing appropriately? int minLB = qMax(0, -fm.minLeftBearing()); int minRB = qMax(0, -fm.minRightBearing()); int widthUsed = qRound(d->control->naturalTextWidth()) + 1 + minRB; if (d->autoScroll) { if ((minLB + widthUsed) <= br.width()) { // text fits in br; use hscroll for alignment switch (d->hAlign & ~(Qt::AlignAbsolute|Qt::AlignVertical_Mask)) { case Qt::AlignRight: d->hscroll = widthUsed - br.width() + 1; break; case Qt::AlignHCenter: d->hscroll = (widthUsed - br.width()) / 2; break; default: // Left d->hscroll = 0; break; } d->hscroll -= minLB; } else if (cix - d->hscroll >= br.width()) { // text doesn't fit, cursor is to the right of br (scroll right) d->hscroll = cix - br.width() + 1; } else if (cix - d->hscroll < 0 && d->hscroll < widthUsed) { // text doesn't fit, cursor is to the left of br (scroll left) d->hscroll = cix; } else if (widthUsed - d->hscroll < br.width()) { // text doesn't fit, text document is to the left of br; align // right d->hscroll = widthUsed - br.width() + 1; } // the y offset is there to keep the baseline constant in case we have script changes in the text. offset = br.topLeft() - QPoint(d->hscroll, d->control->ascent() - fm.ascent()); } else { if(d->hAlign == AlignRight){ d->hscroll = width() - widthUsed; }else if(d->hAlign == AlignHCenter){ d->hscroll = (width() - widthUsed) / 2; } d->hscroll -= minLB; offset = QPoint(d->hscroll, 0); } d->control->draw(p, offset, r, flags); p->restore(); } /*! \overload Returns the value of the given \a property. */ QVariant QDeclarativeTextInput::inputMethodQuery(Qt::InputMethodQuery property) const { Q_D(const QDeclarativeTextInput); switch(property) { case Qt::ImMicroFocus: return d->control->cursorRect(); case Qt::ImFont: return font(); case Qt::ImCursorPosition: return QVariant(d->control->cursor()); case Qt::ImSurroundingText: return QVariant(text()); case Qt::ImCurrentSelection: return QVariant(selectedText()); case Qt::ImMaximumTextLength: return QVariant(maxLength()); case Qt::ImAnchorPosition: if (d->control->selectionStart() == d->control->selectionEnd()) return QVariant(d->control->cursor()); else if (d->control->selectionStart() == d->control->cursor()) return QVariant(d->control->selectionEnd()); else return QVariant(d->control->selectionStart()); default: return QVariant(); } } void QDeclarativeTextInput::selectAll() { Q_D(QDeclarativeTextInput); d->control->setSelection(0, d->control->text().length()); } /*! \qmlproperty bool TextInput::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 string TextInput::passwordCharacter This is the character displayed when echoMode is set to Password or PasswordEchoOnEdit. By default it is an asterisk. If this property is set to a string with more than one character, the first character is used. If the string is empty, the value is ignored and the property is not set. */ QString QDeclarativeTextInput::passwordCharacter() const { Q_D(const QDeclarativeTextInput); return QString(d->control->passwordCharacter()); } void QDeclarativeTextInput::setPasswordCharacter(const QString &str) { Q_D(QDeclarativeTextInput); if(str.length() < 1) return; emit passwordCharacterChanged(); d->control->setPasswordCharacter(str.constData()[0]); } /*! \qmlproperty string TextInput::displayText This is the text displayed in the TextInput. If \l echoMode is set to TextInput::Normal, this holds the same value as the TextInput::text property. Otherwise, this property holds the text visible to the user, while the \l text property holds the actual entered text. */ QString QDeclarativeTextInput::displayText() const { Q_D(const QDeclarativeTextInput); return d->control->displayText(); } /*! \qmlproperty bool TextInput::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 QDeclarativeTextInput::selectByMouse() const { Q_D(const QDeclarativeTextInput); return d->selectByMouse; } void QDeclarativeTextInput::setSelectByMouse(bool on) { Q_D(QDeclarativeTextInput); if (d->selectByMouse != on) { d->selectByMouse = on; emit selectByMouseChanged(on); } } /*! \qmlmethod void TextInput::moveCursorSelection(int position) Moves the cursor to \a position and updates the selection accordingly. (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. For example, take this sequence of calls: \code cursorPosition = 5 moveCursorSelection(9) moveCursorSelection(7) \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). */ void QDeclarativeTextInput::moveCursorSelection(int position) { Q_D(QDeclarativeTextInput); d->control->moveCursor(position, true); } /*! \qmlmethod void TextInput::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 input panels are shown when TextInput element gains focus and hidden when the focus is lost. You can disable the automatic behavior by setting the property showInputPanelOnFocus to false and use functions openSoftwareInputPanel() and closeSoftwareInputPanel() to implement the behavior you want. Only relevant on platforms, which provide virtual keyboards. \code import Qt 4.7 TextInput { id: textInput text: "Hello world!" showInputPanelOnFocus: false MouseArea { anchors.fill: parent onClicked: textInput.openSoftwareInputPanel() } onFocusChanged: if (!focus) closeSoftwareInputPanel() } \endcode */ void QDeclarativeTextInput::openSoftwareInputPanel() { QEvent event(QEvent::RequestSoftwareInputPanel); if (qApp) { if (QGraphicsView * view = qobject_cast(qApp->focusWidget())) { if (view->scene() && view->scene() == scene()) { QApplication::sendEvent(view, &event); } } } } /*! \qmlmethod void TextInput::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 input panels are shown when TextInput element gains focus and hidden when the focus is lost. You can disable the automatic behavior by setting the property showInputPanelOnFocus to false and use functions openSoftwareInputPanel() and closeSoftwareInputPanel() to implement the behavior you want. Only relevant on platforms, which provide virtual keyboards. \code import Qt 4.7 TextInput { id: textInput text: "Hello world!" showInputPanelOnFocus: false MouseArea { anchors.fill: parent onClicked: textInput.openSoftwareInputPanel() } onFocusChanged: if (!focus) closeSoftwareInputPanel() } \endcode */ void QDeclarativeTextInput::closeSoftwareInputPanel() { QEvent event(QEvent::CloseSoftwareInputPanel); if (qApp) { QEvent event(QEvent::CloseSoftwareInputPanel); if (QGraphicsView * view = qobject_cast(qApp->focusWidget())) { if (view->scene() && view->scene() == scene()) { QApplication::sendEvent(view, &event); } } } } /*! \qmlproperty bool TextInput::showInputPanelOnFocus Whether input panels are automatically shown when TextInput element gains focus and hidden when focus is lost. By default this is set to true. Only relevant on platforms, which provide virtual keyboards. */ bool QDeclarativeTextInput::showInputPanelOnFocus() const { Q_D(const QDeclarativeTextInput); return d->showInputPanelOnFocus; } void QDeclarativeTextInput::setShowInputPanelOnFocus(bool showOnFocus) { Q_D(QDeclarativeTextInput); if (d->showInputPanelOnFocus == showOnFocus) return; d->showInputPanelOnFocus = showOnFocus; emit showInputPanelOnFocusChanged(d->showInputPanelOnFocus); } void QDeclarativeTextInput::focusInEvent(QFocusEvent *event) { Q_D(const QDeclarativeTextInput); if (d->showInputPanelOnFocus && !isReadOnly()) { openSoftwareInputPanel(); } QDeclarativePaintedItem::focusInEvent(event); } void QDeclarativeTextInput::focusOutEvent(QFocusEvent *event) { Q_D(const QDeclarativeTextInput); if (d->showInputPanelOnFocus && !isReadOnly()) { closeSoftwareInputPanel(); } QDeclarativePaintedItem::focusOutEvent(event); } void QDeclarativeTextInputPrivate::init() { Q_Q(QDeclarativeTextInput); control->setCursorWidth(1); control->setPasswordCharacter(QLatin1Char('*')); control->setLayoutDirection(Qt::LeftToRight); q->setSmooth(smooth); q->setAcceptedMouseButtons(Qt::LeftButton); q->setFlag(QGraphicsItem::ItemHasNoContents, false); q->setFlag(QGraphicsItem::ItemAcceptsInputMethod); q->connect(control, SIGNAL(cursorPositionChanged(int,int)), q, SLOT(cursorPosChanged())); q->connect(control, SIGNAL(selectionChanged()), q, SLOT(selectionChanged())); q->connect(control, SIGNAL(textChanged(const QString &)), q, SIGNAL(displayTextChanged(const QString &))); q->connect(control, SIGNAL(textChanged(const QString &)), q, SLOT(q_textChanged())); q->connect(control, SIGNAL(accepted()), q, SIGNAL(accepted())); q->connect(control, SIGNAL(updateNeeded(QRect)), q, SLOT(updateRect(QRect))); q->connect(control, SIGNAL(cursorPositionChanged(int,int)), q, SLOT(updateRect()));//TODO: Only update rect between pos's q->connect(control, SIGNAL(selectionChanged()), q, SLOT(updateRect()));//TODO: Only update rect in selection //Note that above TODOs probably aren't that big a savings q->updateSize(); oldValidity = control->hasAcceptableInput(); lastSelectionStart = 0; lastSelectionEnd = 0; QPalette p = control->palette(); selectedTextColor = p.color(QPalette::HighlightedText); selectionColor = p.color(QPalette::Highlight); } void QDeclarativeTextInput::cursorPosChanged() { Q_D(QDeclarativeTextInput); emit cursorPositionChanged(); if(!d->control->hasSelectedText()){ if(d->lastSelectionStart != d->control->cursor()){ d->lastSelectionStart = d->control->cursor(); emit selectionStartChanged(); } if(d->lastSelectionEnd != d->control->cursor()){ d->lastSelectionEnd = d->control->cursor(); emit selectionEndChanged(); } } } void QDeclarativeTextInput::selectionChanged() { Q_D(QDeclarativeTextInput); emit selectedTextChanged(); if(d->lastSelectionStart != d->control->selectionStart()){ d->lastSelectionStart = d->control->selectionStart(); if(d->lastSelectionStart == -1) d->lastSelectionStart = d->control->cursor(); emit selectionStartChanged(); } if(d->lastSelectionEnd != d->control->selectionEnd()){ d->lastSelectionEnd = d->control->selectionEnd(); if(d->lastSelectionEnd == -1) d->lastSelectionEnd = d->control->cursor(); emit selectionEndChanged(); } } void QDeclarativeTextInput::q_textChanged() { Q_D(QDeclarativeTextInput); updateSize(); emit textChanged(); if(hasAcceptableInput() != d->oldValidity){ d->oldValidity = hasAcceptableInput(); emit acceptableInputChanged(); } } void QDeclarativeTextInput::updateRect(const QRect &r) { Q_D(QDeclarativeTextInput); if(r == QRect()) clearCache(); else dirtyCache(QRect(r.x() - d->hscroll, r.y(), r.width(), r.height())); update(); } void QDeclarativeTextInput::updateSize(bool needsRedraw) { Q_D(QDeclarativeTextInput); int w = width(); int h = height(); setImplicitHeight(d->control->height()); int cursorWidth = d->control->cursorWidth(); if(d->cursorItem) cursorWidth = d->cursorItem->width(); setImplicitWidth(d->control->naturalTextWidth() + cursorWidth); setContentsSize(QSize(width(), height()));//Repaints if changed if(w==width() && h==height() && needsRedraw){ clearCache(); update(); } } QT_END_NAMESPACE