diff options
Diffstat (limited to 'src/imports/layouts/qquicklinearlayout_p.h')
| -rw-r--r-- | src/imports/layouts/qquicklinearlayout_p.h | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/src/imports/layouts/qquicklinearlayout_p.h b/src/imports/layouts/qquicklinearlayout_p.h new file mode 100644 index 0000000000..86404f8d79 --- /dev/null +++ b/src/imports/layouts/qquicklinearlayout_p.h @@ -0,0 +1,250 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the Qt Quick Layouts module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** 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 https://www.qt.io/terms-conditions. For further +** information use the contact form at https://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.LGPL3 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-3.0.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 (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QQUICKLINEARLAYOUT_P_H +#define QQUICKLINEARLAYOUT_P_H + +#include "qquicklayout_p.h" +#include "qquickgridlayoutengine_p.h" + +QT_BEGIN_NAMESPACE + +/********************************** + ** + ** QQuickGridLayoutBase + ** + **/ +class QQuickGridLayoutBasePrivate; + +class QQuickGridLayoutBase : public QQuickLayout +{ + Q_OBJECT + + Q_PROPERTY(Qt::LayoutDirection layoutDirection READ layoutDirection WRITE setLayoutDirection NOTIFY layoutDirectionChanged REVISION 1) + +public: + + QQuickGridLayoutBase(); + + explicit QQuickGridLayoutBase(QQuickGridLayoutBasePrivate &dd, + Qt::Orientation orientation, + QQuickItem *parent = 0); + + ~QQuickGridLayoutBase(); + void componentComplete() Q_DECL_OVERRIDE; + void invalidate(QQuickItem *childItem = 0) Q_DECL_OVERRIDE; + Qt::Orientation orientation() const; + void setOrientation(Qt::Orientation orientation); + QSizeF sizeHint(Qt::SizeHint whichSizeHint) const Q_DECL_OVERRIDE; + Qt::LayoutDirection layoutDirection() const; + void setLayoutDirection(Qt::LayoutDirection dir); + Qt::LayoutDirection effectiveLayoutDirection() const; + void setAlignment(QQuickItem *item, Qt::Alignment align) Q_DECL_OVERRIDE; + +protected: + void updateLayoutItems() Q_DECL_OVERRIDE; + QQuickItem *itemAt(int index) const Q_DECL_OVERRIDE; + int itemCount() const Q_DECL_OVERRIDE; + + void rearrange(const QSizeF &size) Q_DECL_OVERRIDE; + virtual void insertLayoutItems() {} + void itemChange(ItemChange change, const ItemChangeData &data) Q_DECL_OVERRIDE; + +signals: + Q_REVISION(1) void layoutDirectionChanged(); + +protected slots: + void onItemVisibleChanged(); + void onItemDestroyed(); + +private: + void removeGridItem(QGridLayoutItem *gridItem); + Q_DECLARE_PRIVATE(QQuickGridLayoutBase) +}; + +class QQuickLayoutStyleInfo; + +class QQuickGridLayoutBasePrivate : public QQuickLayoutPrivate +{ + Q_DECLARE_PUBLIC(QQuickGridLayoutBase) + +public: + QQuickGridLayoutBasePrivate() : m_rearranging(false) + , m_updateAfterRearrange(false) + , m_layoutDirection(Qt::LeftToRight) + {} + + void mirrorChange() Q_DECL_OVERRIDE + { + Q_Q(QQuickGridLayoutBase); + q->invalidate(); + } + + QQuickGridLayoutEngine engine; + Qt::Orientation orientation; + unsigned m_rearranging : 1; + unsigned m_updateAfterRearrange : 1; + QVector<QQuickItem *> m_invalidateAfterRearrange; + Qt::LayoutDirection m_layoutDirection : 2; + + QQuickLayoutStyleInfo *styleInfo; +}; + +/********************************** + ** + ** QQuickGridLayout + ** + **/ +class QQuickGridLayoutPrivate; +class QQuickGridLayout : public QQuickGridLayoutBase +{ + Q_OBJECT + + Q_PROPERTY(qreal columnSpacing READ columnSpacing WRITE setColumnSpacing NOTIFY columnSpacingChanged) + Q_PROPERTY(qreal rowSpacing READ rowSpacing WRITE setRowSpacing NOTIFY rowSpacingChanged) + Q_PROPERTY(int columns READ columns WRITE setColumns NOTIFY columnsChanged) + Q_PROPERTY(int rows READ rows WRITE setRows NOTIFY rowsChanged) + Q_PROPERTY(Flow flow READ flow WRITE setFlow NOTIFY flowChanged) +public: + explicit QQuickGridLayout(QQuickItem *parent = 0); + qreal columnSpacing() const; + void setColumnSpacing(qreal spacing); + qreal rowSpacing() const; + void setRowSpacing(qreal spacing); + + int columns() const; + void setColumns(int columns); + int rows() const; + void setRows(int rows); + + Q_ENUMS(Flow) + enum Flow { LeftToRight, TopToBottom }; + Flow flow() const; + void setFlow(Flow flow); + + void insertLayoutItems(); + +signals: + void columnSpacingChanged(); + void rowSpacingChanged(); + + void columnsChanged(); + void rowsChanged(); + + void flowChanged(); +private: + Q_DECLARE_PRIVATE(QQuickGridLayout) +}; + +class QQuickGridLayoutPrivate : public QQuickGridLayoutBasePrivate +{ + Q_DECLARE_PUBLIC(QQuickGridLayout) +public: + QQuickGridLayoutPrivate(): columns(-1), rows(-1), flow(QQuickGridLayout::LeftToRight) {} + int columns; + int rows; + QQuickGridLayout::Flow flow; +}; + + +/********************************** + ** + ** QQuickLinearLayout + ** + **/ +class QQuickLinearLayoutPrivate; +class QQuickLinearLayout : public QQuickGridLayoutBase +{ + Q_OBJECT + Q_PROPERTY(qreal spacing READ spacing WRITE setSpacing NOTIFY spacingChanged) +public: + explicit QQuickLinearLayout(Qt::Orientation orientation, + QQuickItem *parent = 0); + void insertLayoutItem(QQuickItem *item); + qreal spacing() const; + void setSpacing(qreal spacing); + + void insertLayoutItems(); + +signals: + void spacingChanged(); +private: + Q_DECLARE_PRIVATE(QQuickLinearLayout) +}; + +class QQuickLinearLayoutPrivate : public QQuickGridLayoutBasePrivate +{ + Q_DECLARE_PUBLIC(QQuickLinearLayout) +public: + QQuickLinearLayoutPrivate() {} +}; + + +/********************************** + ** + ** QQuickRowLayout + ** + **/ +class QQuickRowLayout : public QQuickLinearLayout +{ + Q_OBJECT + +public: + explicit QQuickRowLayout(QQuickItem *parent = 0) + : QQuickLinearLayout(Qt::Horizontal, parent) {} +}; + + +/********************************** + ** + ** QQuickColumnLayout + ** + **/ +class QQuickColumnLayout : public QQuickLinearLayout +{ + Q_OBJECT + +public: + explicit QQuickColumnLayout(QQuickItem *parent = 0) + : QQuickLinearLayout(Qt::Vertical, parent) {} +}; + +QT_END_NAMESPACE + +#endif // QQUICKLINEARLAYOUT_P_H |