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f115032095
This will allow us to properly style the grid and also remove the need to refresh the whole grid on a window resize
104 lines
3.8 KiB
C++
104 lines
3.8 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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**
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** BSD License Usage
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** Alternatively, you may use this file under the terms of the BSD license
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** as follows:
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**
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** "Redistribution and use in source and binary forms, with or without
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** modification, are permitted provided that the following conditions are
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** met:
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** * Redistributions of source code must retain the above copyright
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** notice, this list of conditions and the following disclaimer.
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** * Redistributions in binary form must reproduce the above copyright
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** notice, this list of conditions and the following disclaimer in
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** the documentation and/or other materials provided with the
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** distribution.
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** * Neither the name of The Qt Company Ltd nor the names of its
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** contributors may be used to endorse or promote products derived
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** from this software without specific prior written permission.
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**
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**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#pragma once
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#include <QLayout>
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#include <QRect>
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#include <QStyle>
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class flow_layout : public QLayout
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{
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public:
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struct position
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{
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int row{};
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int col{};
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};
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explicit flow_layout(QWidget* parent, int margin = -1, bool dynamic_spacing = false, int hSpacing = -1, int vSpacing = -1);
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explicit flow_layout(int margin = -1, bool dynamic_spacing = false, int hSpacing = -1, int vSpacing = -1);
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~flow_layout();
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void clear();
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const QList<QLayoutItem*>& item_list() const { return itemList; }
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const QList<position>& positions() const { return m_positions; }
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int rows() const { return m_rows; }
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int cols() const { return m_cols; }
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void addItem(QLayoutItem* item) override;
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Qt::Orientations expandingDirections() const override;
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bool hasHeightForWidth() const override;
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int heightForWidth(int) const override;
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int count() const override;
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QLayoutItem* itemAt(int index) const override;
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QSize minimumSize() const override;
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void setGeometry(const QRect& rect) override;
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QSize sizeHint() const override;
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QLayoutItem* takeAt(int index) override;
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private:
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int horizontalSpacing() const;
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int verticalSpacing() const;
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int doLayout(const QRect& rect, bool testOnly) const;
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int smartSpacing(QStyle::PixelMetric pm) const;
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QList<QLayoutItem*> itemList;
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bool m_dynamic_spacing{};
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int m_hSpaceInitial{-1};
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int m_vSpaceInitial{-1};
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mutable int m_hSpace{-1};
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mutable int m_vSpace{-1};
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mutable QList<position> m_positions;
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mutable int m_rows{};
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mutable int m_cols{};
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};
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