diff options
Diffstat (limited to 'src/gui/to_be_moved/qdnd.cpp')
| -rw-r--r-- | src/gui/to_be_moved/qdnd.cpp | 491 |
1 files changed, 0 insertions, 491 deletions
diff --git a/src/gui/to_be_moved/qdnd.cpp b/src/gui/to_be_moved/qdnd.cpp deleted file mode 100644 index db79b9042d..0000000000 --- a/src/gui/to_be_moved/qdnd.cpp +++ /dev/null @@ -1,491 +0,0 @@ -/**************************************************************************** -** -** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). -** All rights reserved. -** Contact: Nokia Corporation (qt-info@nokia.com) -** -** This file is part of the QtGui 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 "qplatformdefs.h" - -#include "qbitmap.h" -#include "qdrag.h" -#include "qpixmap.h" -#include "qevent.h" -#include "qfile.h" -#include "qtextcodec.h" -#include "qguiapplication.h" -#include "qpoint.h" -#include "qwidget.h" -#include "qbuffer.h" -#include "qimage.h" -#include "qregexp.h" -#include "qdir.h" -#include "qdnd_p.h" -#include "qimagereader.h" -#include "qimagewriter.h" -#include "qdebug.h" -#include <ctype.h> - -#include <private/qguiapplication_p.h> - -#ifndef QT_NO_DRAGANDDROP - -QT_BEGIN_NAMESPACE - -#ifndef QT_NO_DRAGANDDROP - -//#define QDND_DEBUG - -#ifdef QDND_DEBUG -QString dragActionsToString(Qt::DropActions actions) -{ - QString str; - if (actions == Qt::IgnoreAction) { - if (!str.isEmpty()) - str += " | "; - str += "IgnoreAction"; - } - if (actions & Qt::LinkAction) { - if (!str.isEmpty()) - str += " | "; - str += "LinkAction"; - } - if (actions & Qt::CopyAction) { - if (!str.isEmpty()) - str += " | "; - str += "CopyAction"; - } - if (actions & Qt::MoveAction) { - if (!str.isEmpty()) - str += " | "; - str += "MoveAction"; - } - if ((actions & Qt::TargetMoveAction) == Qt::TargetMoveAction ) { - if (!str.isEmpty()) - str += " | "; - str += "TargetMoveAction"; - } - return str; -} - -QString KeyboardModifiersToString(Qt::KeyboardModifiers moderfies) -{ - QString str; - if (moderfies & Qt::ControlModifier) { - if (!str.isEmpty()) - str += " | "; - str += Qt::ControlModifier; - } - if (moderfies & Qt::AltModifier) { - if (!str.isEmpty()) - str += " | "; - str += Qt::AltModifier; - } - if (moderfies & Qt::ShiftModifier) { - if (!str.isEmpty()) - str += " | "; - str += Qt::ShiftModifier; - } - return str; -} -#endif - - -// the universe's only drag manager -QDragManager *QDragManager::instance = 0; - - -QDragManager::QDragManager() - : QObject(qApp) -{ - Q_ASSERT(!instance); - -#ifdef Q_WS_QWS - currentActionForOverrideCursor = Qt::IgnoreAction; -#endif - object = 0; - beingCancelled = false; - restoreCursor = false; - willDrop = false; - eventLoop = 0; - dropData = new QDropData(); - currentDropTarget = 0; -#ifdef Q_WS_X11 - xdndMimeTransferedPixmapIndex = 0; -#endif -} - - -QDragManager::~QDragManager() -{ -#ifndef QT_NO_CURSOR - if (restoreCursor) - QGuiApplication::restoreOverrideCursor(); -#endif - instance = 0; - delete dropData; -} - -QDragManager *QDragManager::self() -{ - if (!instance && !QApplication::closingDown()) - instance = new QDragManager; - return instance; -} - -QPixmap QDragManager::dragCursor(Qt::DropAction action) const -{ - QDragPrivate * d = dragPrivate(); - if (d && d->customCursors.contains(action)) - return d->customCursors[action]; - else if (action == Qt::MoveAction) - return QGuiApplicationPrivate::instance()->getPixmapCursor(Qt::DragMoveCursor); - else if (action == Qt::CopyAction) - return QGuiApplicationPrivate::instance()->getPixmapCursor(Qt::DragCopyCursor); - else if (action == Qt::LinkAction) - return QGuiApplicationPrivate::instance()->getPixmapCursor(Qt::DragLinkCursor); -#ifdef Q_WS_WIN - else if (action == Qt::IgnoreAction) - return QGuiApplicationPrivate::instance()->getPixmapCursor(Qt::ForbiddenCursor); -#endif - return QPixmap(); -} - -bool QDragManager::hasCustomDragCursors() const -{ - QDragPrivate * d = dragPrivate(); - return d && !d->customCursors.isEmpty(); -} - -Qt::DropAction QDragManager::defaultAction(Qt::DropActions possibleActions, - Qt::KeyboardModifiers modifiers) const -{ -#ifdef QDND_DEBUG - qDebug("QDragManager::defaultAction(Qt::DropActions possibleActions)"); - qDebug("keyboard modifiers : %s", KeyboardModifiersToString(modifiers).latin1()); -#endif - - QDragPrivate *d = dragPrivate(); - Qt::DropAction defaultAction = d ? d->defaultDropAction : Qt::IgnoreAction; - - if (defaultAction == Qt::IgnoreAction) { - //This means that the drag was initiated by QDrag::start and we need to - //preserve the old behavior -#ifdef Q_WS_MAC - defaultAction = Qt::MoveAction; -#else - defaultAction = Qt::CopyAction; -#endif - } - -#ifdef Q_WS_MAC - if (modifiers & Qt::ControlModifier && modifiers & Qt::AltModifier) - defaultAction = Qt::LinkAction; - else if (modifiers & Qt::AltModifier) - defaultAction = Qt::CopyAction; - else if (modifiers & Qt::ControlModifier) - defaultAction = Qt::MoveAction; -#else - if (modifiers & Qt::ControlModifier && modifiers & Qt::ShiftModifier) - defaultAction = Qt::LinkAction; - else if (modifiers & Qt::ControlModifier) - defaultAction = Qt::CopyAction; - else if (modifiers & Qt::ShiftModifier) - defaultAction = Qt::MoveAction; - else if (modifiers & Qt::AltModifier) - defaultAction = Qt::LinkAction; -#endif - - // if the object is set take the list of possibles from it - if (object) - possibleActions = object->d_func()->possible_actions; - -#ifdef QDND_DEBUG - qDebug("possible actions : %s", dragActionsToString(possibleActions).latin1()); -#endif - - // Check if the action determined is allowed - if (!(possibleActions & defaultAction)) { - if (possibleActions & Qt::CopyAction) - defaultAction = Qt::CopyAction; - else if (possibleActions & Qt::MoveAction) - defaultAction = Qt::MoveAction; - else if (possibleActions & Qt::LinkAction) - defaultAction = Qt::LinkAction; - else - defaultAction = Qt::IgnoreAction; - } - -#ifdef QDND_DEBUG - qDebug("default action : %s", dragActionsToString(defaultAction).latin1()); -#endif - - return defaultAction; -} - -void QDragManager::setCurrentTarget(QWidget *target, bool dropped) -{ - if (currentDropTarget == target) - return; - - currentDropTarget = target; - if (!dropped && object) { - object->d_func()->target = target; - emit object->targetChanged(target); - } - -} - -QWidget *QDragManager::currentTarget() -{ - return currentDropTarget; -} - -#endif - -QDropData::QDropData() - : QInternalMimeData() -{ -} - -QDropData::~QDropData() -{ -} -#endif // QT_NO_DRAGANDDROP - -#if !(defined(QT_NO_DRAGANDDROP) && defined(QT_NO_CLIPBOARD)) - -static QStringList imageReadMimeFormats() -{ - QStringList formats; - QList<QByteArray> imageFormats = QImageReader::supportedImageFormats(); - for (int i = 0; i < imageFormats.size(); ++i) { - QString format = QLatin1String("image/"); - format += QString::fromLatin1(imageFormats.at(i).toLower()); - formats.append(format); - } - - //put png at the front because it is best - int pngIndex = formats.indexOf(QLatin1String("image/png")); - if (pngIndex != -1 && pngIndex != 0) - formats.move(pngIndex, 0); - - return formats; -} - - -static QStringList imageWriteMimeFormats() -{ - QStringList formats; - QList<QByteArray> imageFormats = QImageWriter::supportedImageFormats(); - for (int i = 0; i < imageFormats.size(); ++i) { - QString format = QLatin1String("image/"); - format += QString::fromLatin1(imageFormats.at(i).toLower()); - formats.append(format); - } - - //put png at the front because it is best - int pngIndex = formats.indexOf(QLatin1String("image/png")); - if (pngIndex != -1 && pngIndex != 0) - formats.move(pngIndex, 0); - - return formats; -} - -QInternalMimeData::QInternalMimeData() - : QMimeData() -{ -} - -QInternalMimeData::~QInternalMimeData() -{ -} - -bool QInternalMimeData::hasFormat(const QString &mimeType) const -{ - bool foundFormat = hasFormat_sys(mimeType); - if (!foundFormat && mimeType == QLatin1String("application/x-qt-image")) { - QStringList imageFormats = imageReadMimeFormats(); - for (int i = 0; i < imageFormats.size(); ++i) { - if ((foundFormat = hasFormat_sys(imageFormats.at(i)))) - break; - } - } - return foundFormat; -} - -QStringList QInternalMimeData::formats() const -{ - QStringList realFormats = formats_sys(); - if (!realFormats.contains(QLatin1String("application/x-qt-image"))) { - QStringList imageFormats = imageReadMimeFormats(); - for (int i = 0; i < imageFormats.size(); ++i) { - if (realFormats.contains(imageFormats.at(i))) { - realFormats += QLatin1String("application/x-qt-image"); - break; - } - } - } - return realFormats; -} - -QVariant QInternalMimeData::retrieveData(const QString &mimeType, QVariant::Type type) const -{ - QVariant data = retrieveData_sys(mimeType, type); - if (mimeType == QLatin1String("application/x-qt-image")) { - if (data.isNull() || (data.type() == QVariant::ByteArray && data.toByteArray().isEmpty())) { - // try to find an image - QStringList imageFormats = imageReadMimeFormats(); - for (int i = 0; i < imageFormats.size(); ++i) { - data = retrieveData_sys(imageFormats.at(i), type); - if (data.isNull() || (data.type() == QVariant::ByteArray && data.toByteArray().isEmpty())) - continue; - break; - } - } - // we wanted some image type, but all we got was a byte array. Convert it to an image. - if (data.type() == QVariant::ByteArray - && (type == QVariant::Image || type == QVariant::Pixmap || type == QVariant::Bitmap)) - data = QImage::fromData(data.toByteArray()); - - } else if (mimeType == QLatin1String("application/x-color") && data.type() == QVariant::ByteArray) { - QColor c; - QByteArray ba = data.toByteArray(); - if (ba.size() == 8) { - ushort * colBuf = (ushort *)ba.data(); - c.setRgbF(qreal(colBuf[0]) / qreal(0xFFFF), - qreal(colBuf[1]) / qreal(0xFFFF), - qreal(colBuf[2]) / qreal(0xFFFF), - qreal(colBuf[3]) / qreal(0xFFFF)); - data = c; - } else { - qWarning("Qt: Invalid color format"); - } - } else if (data.type() != type && data.type() == QVariant::ByteArray) { - // try to use mime data's internal conversion stuf. - QInternalMimeData *that = const_cast<QInternalMimeData *>(this); - that->setData(mimeType, data.toByteArray()); - data = QMimeData::retrieveData(mimeType, type); - that->clear(); - } - return data; -} - -bool QInternalMimeData::canReadData(const QString &mimeType) -{ - return imageReadMimeFormats().contains(mimeType); -} - -// helper functions for rendering mimedata to the system, this is needed because QMimeData is in core. -QStringList QInternalMimeData::formatsHelper(const QMimeData *data) -{ - QStringList realFormats = data->formats(); - if (realFormats.contains(QLatin1String("application/x-qt-image"))) { - // add all supported image formats - QStringList imageFormats = imageWriteMimeFormats(); - for (int i = 0; i < imageFormats.size(); ++i) { - if (!realFormats.contains(imageFormats.at(i))) - realFormats.append(imageFormats.at(i)); - } - } - return realFormats; -} - -bool QInternalMimeData::hasFormatHelper(const QString &mimeType, const QMimeData *data) -{ - - bool foundFormat = data->hasFormat(mimeType); - if (!foundFormat) { - if (mimeType == QLatin1String("application/x-qt-image")) { - // check all supported image formats - QStringList imageFormats = imageWriteMimeFormats(); - for (int i = 0; i < imageFormats.size(); ++i) { - if ((foundFormat = data->hasFormat(imageFormats.at(i)))) - break; - } - } else if (mimeType.startsWith(QLatin1String("image/"))) { - return data->hasImage() && imageWriteMimeFormats().contains(mimeType); - } - } - return foundFormat; -} - -QByteArray QInternalMimeData::renderDataHelper(const QString &mimeType, const QMimeData *data) -{ - QByteArray ba; - if (mimeType == QLatin1String("application/x-color")) { - /* QMimeData can only provide colors as QColor or the name - of a color as a QByteArray or a QString. So we need to do - the conversion to application/x-color here. - The application/x-color format is : - type: application/x-color - format: 16 - data[0]: red - data[1]: green - data[2]: blue - data[3]: opacity - */ - ba.resize(8); - ushort * colBuf = (ushort *)ba.data(); - QColor c = qvariant_cast<QColor>(data->colorData()); - colBuf[0] = ushort(c.redF() * 0xFFFF); - colBuf[1] = ushort(c.greenF() * 0xFFFF); - colBuf[2] = ushort(c.blueF() * 0xFFFF); - colBuf[3] = ushort(c.alphaF() * 0xFFFF); - } else { - ba = data->data(mimeType); - if (ba.isEmpty()) { - if (mimeType == QLatin1String("application/x-qt-image") && data->hasImage()) { - QImage image = qvariant_cast<QImage>(data->imageData()); - QBuffer buf(&ba); - buf.open(QBuffer::WriteOnly); - // would there not be PNG ?? - image.save(&buf, "PNG"); - } else if (mimeType.startsWith(QLatin1String("image/")) && data->hasImage()) { - QImage image = qvariant_cast<QImage>(data->imageData()); - QBuffer buf(&ba); - buf.open(QBuffer::WriteOnly); - image.save(&buf, mimeType.mid(mimeType.indexOf(QLatin1Char('/')) + 1).toLatin1().toUpper()); - } - } - } - return ba; -} - -#endif // QT_NO_DRAGANDDROP && QT_NO_CLIPBOARD - -QT_END_NAMESPACE |