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Diffstat (limited to 'src/templates/qquicktextarea.cpp')
| -rw-r--r-- | src/templates/qquicktextarea.cpp | 323 |
1 files changed, 323 insertions, 0 deletions
diff --git a/src/templates/qquicktextarea.cpp b/src/templates/qquicktextarea.cpp new file mode 100644 index 00000000..d46702e2 --- /dev/null +++ b/src/templates/qquicktextarea.cpp @@ -0,0 +1,323 @@ +/**************************************************************************** +** +** Copyright (C) 2015 The Qt Company Ltd. +** Contact: http://www.qt.io/licensing/ +** +** This file is part of the Qt Quick Controls module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL3$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see http://www.qt.io/terms-conditions. For further +** information use the contact form at http://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPLv3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or later 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 2.0 requirements will be +** met: http://www.gnu.org/licenses/gpl-2.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#include "qquicktextarea_p.h" +#include "qquicktextarea_p_p.h" +#include "qquickcontrol_p.h" +#include "qquickcontrol_p_p.h" + +#include <QtGui/qguiapplication.h> +#include <QtQuick/private/qquickitem_p.h> +#include <QtQuick/private/qquicktext_p.h> +#include <QtQuick/private/qquickclipnode_p.h> + +#ifndef QT_NO_ACCESSIBILITY +#include <QtQuick/private/qquickaccessibleattached_p.h> +#endif + +QT_BEGIN_NAMESPACE + +/*! + \qmltype TextArea + \inherits TextEdit + \instantiates QQuickTextArea + \inqmlmodule QtQuick.Controls + \ingroup editors + \brief A multi line text input control. + + TextArea is a multi-line text editor. TextArea extends TextEdit + with a \l placeholder text functionality, and adds decoration. + + \code + TextArea { + placeholder.text: qsTr("Enter description") + } + \endcode + + \sa TextField, {Customizing TextArea} +*/ + +void QQuickTextAreaPrivate::resizeBackground() +{ + Q_Q(QQuickTextArea); + if (background) { + QQuickItemPrivate *p = QQuickItemPrivate::get(background); + if (!p->widthValid && qFuzzyIsNull(background->x())) { + background->setWidth(q->width()); + p->widthValid = false; + } + if (!p->heightValid && qFuzzyIsNull(background->y())) { + background->setHeight(q->height()); + p->heightValid = false; + } + } +} + +QQuickTextArea::QQuickTextArea(QQuickItem *parent) : + QQuickTextEdit(*(new QQuickTextAreaPrivate), parent) +{ + Q_D(QQuickTextArea); + setActiveFocusOnTab(true); + d->pressAndHoldHelper.control = this; + QObjectPrivate::connect(this, &QQuickTextEdit::readOnlyChanged, + d, &QQuickTextAreaPrivate::_q_readOnlyChanged); +} + +QQuickTextArea::~QQuickTextArea() +{ +} + +/*! + \internal + + Determine which font is implicitly imposed on this control by its ancestors + and QGuiApplication::font, resolve this against its own font (attributes from + the implicit font are copied over). Then propagate this font to this + control's children. +*/ +void QQuickTextAreaPrivate::resolveFont() +{ + Q_Q(const QQuickTextArea); + QFont naturalFont = QQuickControlPrivate::naturalControlFont(q); + QFont resolvedFont = sourceFont.resolve(naturalFont); + setFont_helper(resolvedFont); +} + +void QQuickTextAreaPrivate::_q_readOnlyChanged(bool isReadOnly) +{ +#ifndef QT_NO_ACCESSIBILITY + Q_Q(QQuickTextArea); + if (accessibleAttached) + QQuickAccessibleAttached::setProperty(q, "readOnly", isReadOnly); +#else + Q_UNUSED(isReadOnly) +#endif +} + +void QQuickTextAreaPrivate::_q_placeholderTextChanged(const QString &text) +{ +#ifndef QT_NO_ACCESSIBILITY + if (accessibleAttached) + accessibleAttached->setDescription(text); +#else + Q_UNUSED(text) +#endif +} + +QFont QQuickTextArea::font() const +{ + Q_D(const QQuickTextArea); + return d->sourceFont; +} + +void QQuickTextArea::setFont(const QFont &font) +{ + Q_D(QQuickTextArea); + if (d->sourceFont == font) + return; + + // Determine which font is inherited from this control's ancestors and + // QGuiApplication::font, resolve this against \a font (attributes from the + // inherited font are copied over). Then propagate this font to this + // control's children. + QFont naturalFont = QQuickControlPrivate::naturalControlFont(this); + QFont resolvedFont = font.resolve(naturalFont); + d->setFont_helper(resolvedFont); + + QQuickTextEdit::setFont(font); + + emit fontChanged(); +} + +/*! + \qmlproperty Item QtQuickControls2::TextArea::background + + This property holds the background item. + + \note If the background item has no explicit size specified, it automatically + follows the control's size. In most cases, there is no need to specify + width or height for a background item. + + \sa {Customizing TextArea} +*/ +QQuickItem *QQuickTextArea::background() const +{ + Q_D(const QQuickTextArea); + return d->background; +} + +void QQuickTextArea::setBackground(QQuickItem *background) +{ + Q_D(QQuickTextArea); + if (d->background != background) { + delete d->background; + d->background = background; + if (background) { + background->setParentItem(this); + if (qFuzzyIsNull(background->z())) + background->setZ(-1); + if (isComponentComplete()) + d->resizeBackground(); + } + emit backgroundChanged(); + } +} + +/*! + \qmlproperty Text QtQuickControls2::TextArea::placeholder + + This property holds the placeholder text item. + + \sa {Customizing TextArea} +*/ +QQuickText *QQuickTextArea::placeholder() const +{ + Q_D(const QQuickTextArea); + return d->placeholder; +} + +void QQuickTextArea::setPlaceholder(QQuickText *placeholder) +{ + Q_D(QQuickTextArea); + if (d->placeholder != placeholder) { + if (d->placeholder) { + QObjectPrivate::disconnect(d->placeholder, &QQuickText::textChanged, + d, &QQuickTextAreaPrivate::_q_placeholderTextChanged); + delete d->placeholder; + } + d->placeholder = placeholder; + if (placeholder && !placeholder->parentItem()) { + placeholder->setParentItem(this); + QObjectPrivate::connect(d->placeholder, &QQuickText::textChanged, + d, &QQuickTextAreaPrivate::_q_placeholderTextChanged); + } else { +#ifndef QT_NO_ACCESSIBILITY + if (d->accessibleAttached) + d->accessibleAttached->setDescription(QLatin1Literal("")); +#endif + } + emit placeholderChanged(); + } +} + +void QQuickTextArea::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry) +{ + Q_D(QQuickTextArea); + QQuickTextEdit::geometryChanged(newGeometry, oldGeometry); + d->resizeBackground(); +} + +QSGNode *QQuickTextArea::updatePaintNode(QSGNode *oldNode, UpdatePaintNodeData *data) +{ + QQuickDefaultClipNode *clipNode = static_cast<QQuickDefaultClipNode *>(oldNode); + if (!clipNode) + clipNode = new QQuickDefaultClipNode(QRectF()); + + clipNode->setRect(clipRect().adjusted(leftPadding(), topPadding(), -rightPadding(), -bottomPadding())); + clipNode->update(); + + QSGNode *textNode = QQuickTextEdit::updatePaintNode(clipNode->firstChild(), data); + if (!textNode->parent()) + clipNode->appendChildNode(textNode); + + return clipNode; +} + +void QQuickTextArea::mousePressEvent(QMouseEvent *event) +{ + Q_D(QQuickTextArea); + d->pressAndHoldHelper.mousePressEvent(event); + if (d->pressAndHoldHelper.isActive()) { + if (d->pressAndHoldHelper.delayedMousePressEvent) { + QQuickTextEdit::mousePressEvent(d->pressAndHoldHelper.delayedMousePressEvent); + d->pressAndHoldHelper.clearDelayedMouseEvent(); + } + QQuickTextEdit::mousePressEvent(event); + } +} + +void QQuickTextArea::mouseMoveEvent(QMouseEvent *event) +{ + Q_D(QQuickTextArea); + d->pressAndHoldHelper.mouseMoveEvent(event); + if (d->pressAndHoldHelper.isActive()) { + if (d->pressAndHoldHelper.delayedMousePressEvent) { + QQuickTextEdit::mousePressEvent(d->pressAndHoldHelper.delayedMousePressEvent); + d->pressAndHoldHelper.clearDelayedMouseEvent(); + } + QQuickTextEdit::mouseMoveEvent(event); + } +} + +void QQuickTextArea::mouseReleaseEvent(QMouseEvent *event) +{ + Q_D(QQuickTextArea); + d->pressAndHoldHelper.mouseReleaseEvent(event); + if (d->pressAndHoldHelper.isActive()) { + if (d->pressAndHoldHelper.delayedMousePressEvent) { + QQuickTextEdit::mousePressEvent(d->pressAndHoldHelper.delayedMousePressEvent); + d->pressAndHoldHelper.clearDelayedMouseEvent(); + } + QQuickTextEdit::mouseReleaseEvent(event); + } +} + +void QQuickTextArea::timerEvent(QTimerEvent *event) +{ + Q_D(QQuickTextArea); + if (event->timerId() == d->pressAndHoldHelper.timer.timerId()) { + d->pressAndHoldHelper.timerEvent(event); + } else { + QQuickTextEdit::timerEvent(event); + } +} + +void QQuickTextArea::classBegin() +{ + QQuickTextEdit::classBegin(); +#ifndef QT_NO_ACCESSIBILITY + Q_D(QQuickTextArea); + d->accessibleAttached = qobject_cast<QQuickAccessibleAttached *>(qmlAttachedPropertiesObject<QQuickAccessibleAttached>(this, true)); + if (d->accessibleAttached) { + d->accessibleAttached->setRole((QAccessible::Role)(0x0000002A)); // Accessible.EditableText + QQuickAccessibleAttached::setProperty(this, "multiLine", true); + } else { + qWarning() << "QQuickTextArea: QQuickAccessibleAttached object creation failed!"; + } +#endif +} + +QT_END_NAMESPACE |