diff options
author | Liang Qi <liang.qi@qt.io> | 2016-08-01 13:14:04 +0200 |
---|---|---|
committer | Liang Qi <liang.qi@qt.io> | 2016-08-01 13:14:04 +0200 |
commit | 6839f03051d2950e4721cbb5ee88fa7b07109588 (patch) | |
tree | d5cdfeeb6e59953f5109ef87a1be08f69fcddf7a /src/quick | |
parent | cc5ead1b3c8ce79c240b70bdfcfb687fe60e50f5 (diff) | |
parent | fe92db0a0eeed502ef851930b3404b38c4a03f4f (diff) |
Merge remote-tracking branch 'origin/5.6' into 5.7
Conflicts:
tests/auto/qml/qqmllanguage/tst_qqmllanguage.cpp
tests/auto/quick/qquickitem/tst_qquickitem.cpp
Change-Id: If261f8eea84dfa5944bb55de999d1f70aba528fd
Diffstat (limited to 'src/quick')
-rw-r--r-- | src/quick/doc/src/concepts/modelviewsdata/cppmodels.qdoc | 105 | ||||
-rw-r--r-- | src/quick/items/qquickitemanimation.cpp | 42 | ||||
-rw-r--r-- | src/quick/items/qquickwindow.cpp | 6 | ||||
-rw-r--r-- | src/quick/scenegraph/qsgdefaultlayer.cpp | 31 | ||||
-rw-r--r-- | src/quick/scenegraph/qsgthreadedrenderloop.cpp | 2 |
5 files changed, 137 insertions, 49 deletions
diff --git a/src/quick/doc/src/concepts/modelviewsdata/cppmodels.qdoc b/src/quick/doc/src/concepts/modelviewsdata/cppmodels.qdoc index cb281a2d4a..a764402c2f 100644 --- a/src/quick/doc/src/concepts/modelviewsdata/cppmodels.qdoc +++ b/src/quick/doc/src/concepts/modelviewsdata/cppmodels.qdoc @@ -156,6 +156,111 @@ with list models of QAbstractItemModel type: \li \l DelegateModel::parentModelIndex() returns a QModelIndex which can be assigned to DelegateModel::rootIndex \endlist +\section2 SQL Models + +Qt provides C++ classes that support SQL data models. These classes work +transparently on the underlying SQL data, reducing the need to run SQL +queries for basic SQL operations such as create, insert, or update. +For more details about these classes, see \l{Using the SQL Model Classes}. + +Although the C++ classes provide complete feature sets to operate on SQL +data, they do not provide data access to QML. So you must implement a +C++ custom data model as a subclass of one of these classes, and expose it +to QML either as a type or context property. + +\section3 Read-only Data Model + +The custom model must reimplement the following methods to enable read-only +access to the data from QML: + +\list +\li \l{QAbstractItemModel::}{roleNames}() to expose the role names to the + QML frontend. For example, the following version returns the selected + table's field names as role names: + \code + QHash<int, QByteArray> SqlQueryModel::roleNames() const + { + QHash<int, QByteArray> roles; + // record() returns an empty QSqlRecord + for (int i = 0; i < this->record().count(); i ++) { + roles.insert(Qt::UserRole + i + 1, record().fieldName(i).toUtf8()); + } + return roles; + } + \endcode +\li \l{QSqlQueryModel::}{data}() to expose SQL data to the QML frontend. + For example, the following implementation returns data for the given + model index: + \code + QVariant SqlQueryModel::data(const QModelIndex &index, int role) const + { + QVariant value; + + if (index.isValid()) { + if (role < Qt::UserRole) { + value = QSqlQueryModel::data(index, role); + } else { + int columnIdx = role - Qt::UserRole - 1; + QModelIndex modelIndex = this->index(index.row(), columnIdx); + value = QSqlQueryModel::data(modelIndex, Qt::DisplayRole); + } + } + return value; + } + \endcode +\endlist + +The QSqlQueryModel class is good enough to implement a custom read-only +model that represents data in an SQL database. The +\l{Qt Quick Controls 2 - Chat Tutorial}{chat tutorial} example +demonstrates this very well by implementing a custom model to fetch the +contact details from an SQLite database. + +\section3 Editable Data Model + +Besides the \c roleNames() and \c data(), the editable models must reimplement +the \l{QSqlTableModel::}{setData} method to save changes to existing SQL data. +The following version of the method checks if the given model index is valid +and the \c role is equal to \l Qt::EditRole, before calling the parent class +version: + +\code +bool SqlEditableModel::setData(const QModelIndex &item, const QVariant &value, int role) +{ + if (item.isValid() && role == Qt::EditRole) { + QSqlTableModel::setData(item, value,role); + emit dataChanged(item, item); + return true; + } + return false; + +} +\endcode + +\note It is important to emit the \l{QAbstractItemModel::}{dataChanged}() +signal after saving the changes. + +Unlike the C++ item views such as QListView or QTableView, the \c setData() +method must be explicitly invoked from QML whenever appropriate. For example, +on the \l[QML]{TextField::}{editingFinished}() or \l[QML]{TextField::}{accepted}() +signal of \l[QtQuickControls]{TextField}. Depending on the +\l{QSqlTableModel::}{EditStrategy} used by the model, the changes are either +queued for submission later or submitted immediately. + +You can also insert new data into the model by calling +\l {QSqlTableModel::insertRecord}(). In the following example snippet, +a QSqlRecord is populated with book details and appended to the +model: + +\code + ... + QSqlRecord newRecord = record(); + newRecord.setValue("author", "John Grisham"); + newRecord.setValue("booktitle", "The Litigators"); + insertRecord(rowCount(), newRecord); + ... +\endcode + \section2 Exposing C++ Data Models to QML The above examples use QQmlContext::setContextProperty() to set diff --git a/src/quick/items/qquickitemanimation.cpp b/src/quick/items/qquickitemanimation.cpp index 962f410095..027c07ec07 100644 --- a/src/quick/items/qquickitemanimation.cpp +++ b/src/quick/items/qquickitemanimation.cpp @@ -200,6 +200,27 @@ QPointF QQuickParentAnimationPrivate::computeTransformOrigin(QQuickItem::Transfo } } +struct QQuickParentAnimationData : public QAbstractAnimationAction +{ + QQuickParentAnimationData() : reverse(false) {} + ~QQuickParentAnimationData() { qDeleteAll(pc); } + + QQuickStateActions actions; + //### reverse should probably apply on a per-action basis + bool reverse; + QList<QQuickParentChange *> pc; + void doAction() Q_DECL_OVERRIDE + { + for (int ii = 0; ii < actions.count(); ++ii) { + const QQuickStateAction &action = actions.at(ii); + if (reverse) + action.event->reverse(); + else + action.event->execute(); + } + } +}; + QAbstractAnimationJob* QQuickParentAnimation::transition(QQuickStateActions &actions, QQmlProperties &modified, TransitionDirection direction, @@ -207,27 +228,6 @@ QAbstractAnimationJob* QQuickParentAnimation::transition(QQuickStateActions &act { Q_D(QQuickParentAnimation); - struct QQuickParentAnimationData : public QAbstractAnimationAction - { - QQuickParentAnimationData() : reverse(false) {} - ~QQuickParentAnimationData() { qDeleteAll(pc); } - - QQuickStateActions actions; - //### reverse should probably apply on a per-action basis - bool reverse; - QList<QQuickParentChange *> pc; - void doAction() Q_DECL_OVERRIDE - { - for (int ii = 0; ii < actions.count(); ++ii) { - const QQuickStateAction &action = actions.at(ii); - if (reverse) - action.event->reverse(); - else - action.event->execute(); - } - } - }; - QQuickParentAnimationData *data = new QQuickParentAnimationData; QQuickParentAnimationData *viaData = new QQuickParentAnimationData; diff --git a/src/quick/items/qquickwindow.cpp b/src/quick/items/qquickwindow.cpp index aedd586a4f..46ae993a18 100644 --- a/src/quick/items/qquickwindow.cpp +++ b/src/quick/items/qquickwindow.cpp @@ -1633,6 +1633,12 @@ bool QQuickWindowPrivate::deliverMouseEvent(QMouseEvent *event) } if (mouseGrabberItem) { + if (event->button() != Qt::NoButton + && mouseGrabberItem->acceptedMouseButtons() + && !(mouseGrabberItem->acceptedMouseButtons() & event->button())) { + event->ignore(); + return false; + } QPointF localPos = mouseGrabberItem->mapFromScene(event->windowPos()); QScopedPointer<QMouseEvent> me(cloneMouseEvent(event, &localPos)); me->accept(); diff --git a/src/quick/scenegraph/qsgdefaultlayer.cpp b/src/quick/scenegraph/qsgdefaultlayer.cpp index ceab64478b..2f1c1d454c 100644 --- a/src/quick/scenegraph/qsgdefaultlayer.cpp +++ b/src/quick/scenegraph/qsgdefaultlayer.cpp @@ -48,29 +48,6 @@ DEFINE_BOOL_CONFIG_OPTION(qmlFboOverlay, QML_FBO_OVERLAY) #endif DEFINE_BOOL_CONFIG_OPTION(qmlFboFlushBeforeDetach, QML_FBO_FLUSH_BEFORE_DETACH) - - -static QOpenGLFramebufferObject *createFramebuffer(const QSize &size, - QOpenGLFramebufferObjectFormat format) -{ -#ifdef Q_OS_MACOS - QOpenGLContext *context = QOpenGLContext::currentContext(); - if (context->hasExtension("GL_ARB_framebuffer_sRGB") - && context->hasExtension("GL_EXT_texture_sRGB") - && context->hasExtension("GL_EXT_texture_sRGB_decode")) - format.setInternalTextureFormat(GL_SRGB8_ALPHA8_EXT); -#endif - QOpenGLFramebufferObject *fbo = new QOpenGLFramebufferObject(size, format); -#ifdef Q_OS_MACOS - if (format.internalTextureFormat() == GL_SRGB8_ALPHA8_EXT) { - QOpenGLFunctions *funcs = context->functions(); - funcs->glBindTexture(GL_TEXTURE_2D, fbo->texture()); - funcs->glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_SRGB_DECODE_EXT, GL_SKIP_DECODE_EXT); - } -#endif - return fbo; -} - namespace { class BindableFbo : public QSGBindable @@ -353,7 +330,7 @@ void QSGDefaultLayer::grab() format.setInternalTextureFormat(m_format); format.setSamples(m_context->openglContext()->format().samples()); - m_secondaryFbo = createFramebuffer(m_size, format); + m_secondaryFbo = new QOpenGLFramebufferObject(m_size, format); m_depthStencilBuffer = m_context->depthStencilBufferForFbo(m_secondaryFbo); } else { QOpenGLFramebufferObjectFormat format; @@ -362,14 +339,14 @@ void QSGDefaultLayer::grab() if (m_recursive) { deleteFboLater = true; delete m_secondaryFbo; - m_secondaryFbo = createFramebuffer(m_size, format); + m_secondaryFbo = new QOpenGLFramebufferObject(m_size, format); funcs->glBindTexture(GL_TEXTURE_2D, m_secondaryFbo->texture()); updateBindOptions(true); m_depthStencilBuffer = m_context->depthStencilBufferForFbo(m_secondaryFbo); } else { delete m_fbo; delete m_secondaryFbo; - m_fbo = createFramebuffer(m_size, format); + m_fbo = new QOpenGLFramebufferObject(m_size, format); m_secondaryFbo = 0; funcs->glBindTexture(GL_TEXTURE_2D, m_fbo->texture()); updateBindOptions(true); @@ -383,7 +360,7 @@ void QSGDefaultLayer::grab() Q_ASSERT(m_fbo); Q_ASSERT(!m_multisampling); - m_secondaryFbo = createFramebuffer(m_size, m_fbo->format()); + m_secondaryFbo = new QOpenGLFramebufferObject(m_size, m_fbo->format()); funcs->glBindTexture(GL_TEXTURE_2D, m_secondaryFbo->texture()); updateBindOptions(true); } diff --git a/src/quick/scenegraph/qsgthreadedrenderloop.cpp b/src/quick/scenegraph/qsgthreadedrenderloop.cpp index 7c3405b715..96abd4267b 100644 --- a/src/quick/scenegraph/qsgthreadedrenderloop.cpp +++ b/src/quick/scenegraph/qsgthreadedrenderloop.cpp @@ -599,7 +599,7 @@ void QSGRenderThread::syncAndRender() #endif Q_QUICK_SG_PROFILE_RECORD(QQuickProfiler::SceneGraphRenderLoopFrame); - if (!syncResultedInChanges && !repaintRequested) { + if (!syncResultedInChanges && !repaintRequested && sgrc->isValid()) { qCDebug(QSG_LOG_RENDERLOOP) << QSG_RT_PAD << "- no changes, render aborted"; int waitTime = vsyncDelta - (int) waitTimer.elapsed(); if (waitTime > 0) |