122 lines
3.8 KiB
C++
122 lines
3.8 KiB
C++
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/*
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Copyright (C) 2010 by BetterInbox <contact@betterinbox.com>
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Original author: Gregory Schlomoff <greg@betterinbox.com>
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include "DeclarativeMimeData.h"
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/*!
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\qmlclass MimeData DeclarativeMimeData
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This is a wrapper class around QMimeData, with a few extensions to provide better support for in-qml drag & drops.
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*/
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/*!
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\internal
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\class DeclarativeMimeData
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Creates a new DeclarativeMimeData by cloning the QMimeData passed as parameter.
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This is useful for two reasons :
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- In DragArea, we want to clone our "working copy" of the DeclarativeMimeData instance, as Qt will automatically
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delete it after the drag and drop operation.
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- In the drop events, the QMimeData is const, and we have troubles passing const to QML. So we clone it to
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remove the "constness"
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This method will try to cast the QMimeData to DeclarativeMimeData, and will clone our extensions to QMimeData as well
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*/
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DeclarativeMimeData::DeclarativeMimeData(const QMimeData* copy)
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: QMimeData(),
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m_source(0)
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{
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// Copy the standard MIME data
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foreach(QString format, copy->formats()) {
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this->setData(format, copy->data(format));
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}
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// If the object we are copying actually is a DeclarativeMimeData, copy our extended properties as well
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const DeclarativeMimeData* declarativeMimeData = qobject_cast<const DeclarativeMimeData*>(copy);
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if (declarativeMimeData) {
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this->setSource(declarativeMimeData->source());
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}
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}
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/*!
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\qmlproperty url MimeData::url
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Returns the first URL from the urls property of QMimeData
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TODO: We should use QDeclarativeListProperty<QUrls> to return the whole list instead of only the first element.
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*/
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QUrl DeclarativeMimeData::url() const
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{
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if ( this->hasUrls() && !this->urls().isEmpty()) {
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return urls().first();
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}
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return QUrl();
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}
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void DeclarativeMimeData::setUrl(const QUrl &url)
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{
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if (this->url() == url)
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return;
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QList<QUrl> urlList;
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urlList.append(url);
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setUrls(urlList);
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emit urlChanged();
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}
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// color
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QColor DeclarativeMimeData::color() const
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{
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if ( this->hasColor()) {
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return qvariant_cast<QColor>(this->colorData());
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}
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return QColor();
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}
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void DeclarativeMimeData::setColor(const QColor &color)
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{
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if (this->color() != color) {
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this->setColorData(color);
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emit colorChanged();
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}
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}
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/*!
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\qmlproperty item MimeData::source
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Setting source to any existing qml item will enable the receiver of the drag and drop operation to know in which item
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the operation originated.
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In the case of inter-application drag and drop operations, the source will not be available, and will be 0.
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Be sure to test it in your QML code, before using it, or it will generate errors in the console.
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*/
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QDeclarativeItem* DeclarativeMimeData::source() const
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{
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return m_source;
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}
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void DeclarativeMimeData::setSource(QDeclarativeItem* source)
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{
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if (m_source != source) {
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m_source = source;
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emit sourceChanged();
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}
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}
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