DecodeTrace: Add FlowLayout and integrate it

[pulseview.git] / pv / widgets / flowlayout.hpp

diff --git a/pv/widgets/flowlayout.hpp b/pv/widgets/flowlayout.hpp
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+++ b/pv/widgets/flowlayout.hpp
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+/****************************************************************************
+ **
+ ** Copyright (C) 2015 The Qt Company Ltd.
+ ** Contact: http://www.qt.io/licensing/
+ **
+ ** This file is part of the examples of the Qt Toolkit.
+ **
+ ** $QT_BEGIN_LICENSE:BSD$
+ ** You may use this file under the terms of the BSD license as follows:
+ **
+ ** "Redistribution and use in source and binary forms, with or without
+ ** modification, are permitted provided that the following conditions are
+ ** met:
+ **   * Redistributions of source code must retain the above copyright
+ **     notice, this list of conditions and the following disclaimer.
+ **   * Redistributions in binary form must reproduce the above copyright
+ **     notice, this list of conditions and the following disclaimer in
+ **     the documentation and/or other materials provided with the
+ **     distribution.
+ **   * Neither the name of The Qt Company Ltd nor the names of its
+ **     contributors may be used to endorse or promote products derived
+ **     from this software without specific prior written permission.
+ **
+ **
+ ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+ **
+ ** $QT_END_LICENSE$
+ **
+ ****************************************************************************/
+
+#ifndef FLOWLAYOUT_H
+#define FLOWLAYOUT_H
+
+#include <QLayout>
+#include <QRect>
+#include <QStyle>
+#include <QWidgetItem>
+
+class FlowLayout : public QLayout
+{
+public:
+       FlowLayout(QWidget *parent, int margin = -1, int hSpacing = -1, int vSpacing = -1);
+       FlowLayout(int margin = -1, int hSpacing = -1, int vSpacing = -1);
+       ~FlowLayout();
+
+       void addItem(QLayoutItem *item);
+       int horizontalSpacing() const;
+       int verticalSpacing() const;
+       Qt::Orientations expandingDirections() const;
+       bool hasHeightForWidth() const;
+       int heightForWidth(int) const;
+       int count() const;
+       QLayoutItem *itemAt(int index) const;
+       QSize minimumSize() const;
+       void setGeometry(const QRect &rect);
+       QSize sizeHint() const;
+       QLayoutItem *takeAt(int index);
+
+private:
+       int doLayout(const QRect &rect, bool testOnly) const;
+       int smartSpacing(QStyle::PixelMetric pm) const;
+
+       QWidget* m_parent;
+       QList<QLayoutItem*> itemList;
+       int m_hSpace, m_vSpace;
+};
+
+#endif