All Classes Functions Properties
abstractdashview.h
/*
* Copyright (C) 2013, 2014 Canonical, Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 3.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef ABSTRACTDASHVIEW_H
#define ABSTRACTDASHVIEW_H
#include <QQuickItem>
class QAbstractItemModel;
class QQmlComponent;
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-pedantic"
#if (QT_VERSION < QT_VERSION_CHECK(5, 1, 0))
#include <private/qquickvisualdatamodel_p.h>
#else
#include <private/qqmldelegatemodel_p.h>
#include <qqmlinfo.h>
#endif
#pragma GCC diagnostic pop
class AbstractDashView : public QQuickItem
{
Q_OBJECT
Q_PROPERTY(QAbstractItemModel *model READ model WRITE setModel NOTIFY modelChanged)
Q_PROPERTY(QQmlComponent *delegate READ delegate WRITE setDelegate NOTIFY delegateChanged)
Q_PROPERTY(qreal columnSpacing READ columnSpacing WRITE setColumnSpacing NOTIFY columnSpacingChanged)
Q_PROPERTY(qreal rowSpacing READ rowSpacing WRITE setRowSpacing NOTIFY rowSpacingChanged)
Q_PROPERTY(qreal delegateCreationBegin READ delegateCreationBegin
WRITE setDelegateCreationBegin
NOTIFY delegateCreationBeginChanged
RESET resetDelegateCreationBegin)
Q_PROPERTY(qreal delegateCreationEnd READ delegateCreationEnd
WRITE setDelegateCreationEnd
NOTIFY delegateCreationEndChanged
RESET resetDelegateCreationEnd)
friend class VerticalJournalTest;
friend class HorizontalJournalTest;
friend class OrganicGridTest;
public:
AbstractDashView();
QAbstractItemModel *model() const;
void setModel(QAbstractItemModel *model);
QQmlComponent *delegate() const;
void setDelegate(QQmlComponent *delegate);
qreal columnSpacing() const;
void setColumnSpacing(qreal columnSpacing);
qreal rowSpacing() const;
void setRowSpacing(qreal rowSpacing);
qreal delegateCreationBegin() const;
void setDelegateCreationBegin(qreal);
void resetDelegateCreationBegin();
qreal delegateCreationEnd() const;
void setDelegateCreationEnd(qreal);
void resetDelegateCreationEnd();
Q_SIGNALS:
void modelChanged();
void delegateChanged();
void columnSpacingChanged();
void rowSpacingChanged();
void delegateCreationBeginChanged();
void delegateCreationEndChanged();
protected Q_SLOTS:
void relayout();
protected:
void updatePolish() override;
void componentComplete() override;
void releaseItem(QQuickItem *item);
void setImplicitHeightDirty();
private Q_SLOTS:
#if (QT_VERSION < QT_VERSION_CHECK(5, 1, 0))
void itemCreated(int modelIndex, QQuickItem *item);
void onModelUpdated(const QQuickChangeSet &changeSet, bool reset);
#else
void itemCreated(int modelIndex, QObject *object);
void onModelUpdated(const QQmlChangeSet &changeSet, bool reset);
#endif
void onHeightChanged();
private:
void createDelegateModel();
void refill();
bool addVisibleItems(qreal fillFromY, qreal fillToY, bool asynchronous);
QQuickItem *createItem(int modelIndex, bool asynchronous);
virtual void findBottomModelIndexToAdd(int *modelIndex, qreal *yPos) = 0;
virtual void findTopModelIndexToAdd(int *modelIndex, qreal *yPos) = 0;
virtual void addItemToView(int modelIndex, QQuickItem *item) = 0;
virtual bool removeNonVisibleItems(qreal bufferFromY, qreal bufferToY) = 0;
virtual void cleanupExistingItems() = 0;
virtual void doRelayout() = 0;
virtual void updateItemCulling(qreal visibleFromY, qreal visibleToY) = 0;
virtual void calculateImplicitHeight() = 0;
#if (QT_VERSION < QT_VERSION_CHECK(5, 1, 0))
virtual void processModelRemoves(const QVector<QQuickChangeSet::Remove> &removes) = 0;
#else
virtual void processModelRemoves(const QVector<QQmlChangeSet::Remove> &removes) = 0;
#endif
#if (QT_VERSION < QT_VERSION_CHECK(5, 1, 0))
QQuickVisualDataModel *m_delegateModel;
#else
QQmlDelegateModel *m_delegateModel;
#endif
// Index we are waiting because we requested it asynchronously
int m_asyncRequestedIndex;
int m_columnSpacing;
int m_rowSpacing;
qreal m_delegateCreationBegin;
qreal m_delegateCreationEnd;
bool m_delegateCreationBeginValid;
bool m_delegateCreationEndValid;
bool m_needsRelayout;
bool m_delegateValidated;
bool m_implicitHeightDirty;
};
#endif