Fix flowLayout
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parent
9ebd0da3f2
commit
ed8a481b84
379
flowlayout.cpp
379
flowlayout.cpp
@ -1,195 +1,228 @@
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/****************************************************************************
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**
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** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
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** All rights reserved.
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** Contact: Nokia Corporation (qt-info@nokia.com)
|
||||
**
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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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** You may use this file under the terms of the BSD license as follows:
|
||||
**
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||||
** "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 Nokia Corporation and its Subsidiary(-ies) 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."
|
||||
** $QT_END_LICENSE$
|
||||
**
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||||
****************************************************************************/
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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.
|
||||
**
|
||||
** $QT_BEGIN_LICENSE:BSD$
|
||||
** 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.
|
||||
**
|
||||
** BSD License Usage
|
||||
** Alternatively, 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."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include <QtGui>
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//#include <QtWidget>
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#include <QWidget>
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#include "flowlayout.h"
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FlowLayout::FlowLayout(QWidget *parent, int margin, int hSpacing, int vSpacing)
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: QLayout(parent), m_hSpace(hSpacing), m_vSpace(vSpacing)
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{
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setContentsMargins(margin, margin, margin, margin);
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}
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#include "flowlayout.h"
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//! [1]
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FlowLayout::FlowLayout(QWidget *parent, int margin, int hSpacing, int vSpacing)
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: QLayout(parent), m_hSpace(hSpacing), m_vSpace(vSpacing)
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{
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setContentsMargins(margin, margin, margin, margin);
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}
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FlowLayout::FlowLayout(int margin, int hSpacing, int vSpacing)
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: m_hSpace(hSpacing), m_vSpace(vSpacing)
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{
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setContentsMargins(margin, margin, margin, margin);
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}
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FlowLayout::FlowLayout(int margin, int hSpacing, int vSpacing)
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: m_hSpace(hSpacing), m_vSpace(vSpacing)
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{
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setContentsMargins(margin, margin, margin, margin);
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}
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//! [1]
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FlowLayout::~FlowLayout()
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{
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QLayoutItem *item;
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while ((item = takeAt(0)))
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delete item;
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}
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//! [2]
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FlowLayout::~FlowLayout()
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{
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QLayoutItem *item;
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while ((item = takeAt(0)))
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delete item;
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}
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//! [2]
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void FlowLayout::addItem(QLayoutItem *item)
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{
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itemList.append(item);
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}
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void FlowLayout::addWidgetAt(QWidget *w, int pos)
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{
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addWidget(w);
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this->itemList.move(this->itemList.count()-1, 0);
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}
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int FlowLayout::horizontalSpacing() const
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{
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if (m_hSpace >= 0) {
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return m_hSpace;
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} else {
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return smartSpacing(QStyle::PM_LayoutHorizontalSpacing);
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}
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}
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//! [3]
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void FlowLayout::addItem(QLayoutItem *item)
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{
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itemList.append(item);
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}
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//! [3]
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int FlowLayout::verticalSpacing() const
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{
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if (m_vSpace >= 0) {
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return m_vSpace;
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} else {
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return smartSpacing(QStyle::PM_LayoutVerticalSpacing);
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}
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}
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//! [4]
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int FlowLayout::horizontalSpacing() const
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{
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if (m_hSpace >= 0) {
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return m_hSpace;
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} else {
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return smartSpacing(QStyle::PM_LayoutHorizontalSpacing);
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}
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}
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int FlowLayout::count() const
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{
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return itemList.size();
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}
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int FlowLayout::verticalSpacing() const
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{
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if (m_vSpace >= 0) {
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return m_vSpace;
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} else {
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return smartSpacing(QStyle::PM_LayoutVerticalSpacing);
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}
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}
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//! [4]
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QLayoutItem *FlowLayout::itemAt(int index) const
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{
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return itemList.value(index);
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}
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//! [5]
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int FlowLayout::count() const
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{
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return itemList.size();
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}
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QLayoutItem *FlowLayout::takeAt(int index)
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{
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if (index >= 0 && index < itemList.size())
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return itemList.takeAt(index);
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else
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return 0;
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}
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QLayoutItem *FlowLayout::itemAt(int index) const
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{
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return itemList.value(index);
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}
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Qt::Orientations FlowLayout::expandingDirections() const
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{
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return 0;
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}
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QLayoutItem *FlowLayout::takeAt(int index)
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{
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if (index >= 0 && index < itemList.size())
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return itemList.takeAt(index);
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return nullptr;
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}
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//! [5]
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bool FlowLayout::hasHeightForWidth() const
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{
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return true;
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}
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//! [6]
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Qt::Orientations FlowLayout::expandingDirections() const
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{
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return { };
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}
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//! [6]
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int FlowLayout::heightForWidth(int width) const
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{
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int height = doLayout(QRect(0, 0, width, 0), true);
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return height;
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}
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//! [7]
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bool FlowLayout::hasHeightForWidth() const
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{
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return true;
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}
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void FlowLayout::setGeometry(const QRect &rect)
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{
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QLayout::setGeometry(rect);
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doLayout(rect, false);
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}
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int FlowLayout::heightForWidth(int width) const
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{
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int height = doLayout(QRect(0, 0, width, 0), true);
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return height;
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}
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//! [7]
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QSize FlowLayout::sizeHint() const
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{
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return minimumSize();
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}
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//! [8]
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void FlowLayout::setGeometry(const QRect &rect)
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{
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QLayout::setGeometry(rect);
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doLayout(rect, false);
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}
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QSize FlowLayout::minimumSize() const
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{
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QSize size;
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QLayoutItem *item;
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foreach (item, itemList)
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size = size.expandedTo(item->minimumSize());
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QSize FlowLayout::sizeHint() const
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{
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return minimumSize();
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}
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size += QSize(2*margin(), 2*margin());
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return size;
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}
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QSize FlowLayout::minimumSize() const
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{
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QSize size;
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for (const QLayoutItem *item : itemList)
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size = size.expandedTo(item->minimumSize());
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int FlowLayout::doLayout(const QRect &rect, bool testOnly) const
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{
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int left, top, right, bottom;
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getContentsMargins(&left, &top, &right, &bottom);
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QRect effectiveRect = rect.adjusted(+left, +top, -right, -bottom);
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int x = effectiveRect.x();
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int y = effectiveRect.y();
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int lineHeight = 0;
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const QMargins margins = contentsMargins();
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size += QSize(margins.left() + margins.right(), margins.top() + margins.bottom());
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return size;
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}
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//! [8]
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QLayoutItem *item;
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foreach (item, itemList) {
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QWidget *wid = item->widget();
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int spaceX = horizontalSpacing();
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if (spaceX == -1)
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spaceX = wid->style()->layoutSpacing(
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QSizePolicy::PushButton, QSizePolicy::PushButton, Qt::Horizontal);
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int spaceY = verticalSpacing();
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if (spaceY == -1)
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spaceY = wid->style()->layoutSpacing(
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QSizePolicy::PushButton, QSizePolicy::PushButton, Qt::Vertical);
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int nextX = x + item->sizeHint().width() + spaceX;
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if (nextX - spaceX > effectiveRect.right() && lineHeight > 0) {
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x = effectiveRect.x();
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y = y + lineHeight + spaceY;
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nextX = x + item->sizeHint().width() + spaceX;
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lineHeight = 0;
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}
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//! [9]
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int FlowLayout::doLayout(const QRect &rect, bool testOnly) const
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{
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int left, top, right, bottom;
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getContentsMargins(&left, &top, &right, &bottom);
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QRect effectiveRect = rect.adjusted(+left, +top, -right, -bottom);
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int x = effectiveRect.x();
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int y = effectiveRect.y();
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int lineHeight = 0;
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//! [9]
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if (!testOnly)
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item->setGeometry(QRect(QPoint(x, y), item->sizeHint()));
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//! [10]
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for (QLayoutItem *item : itemList) {
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const QWidget *wid = item->widget();
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int spaceX = horizontalSpacing();
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if (spaceX == -1)
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spaceX = wid->style()->layoutSpacing(
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QSizePolicy::PushButton, QSizePolicy::PushButton, Qt::Horizontal);
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int spaceY = verticalSpacing();
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if (spaceY == -1)
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spaceY = wid->style()->layoutSpacing(
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QSizePolicy::PushButton, QSizePolicy::PushButton, Qt::Vertical);
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//! [10]
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//! [11]
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int nextX = x + item->sizeHint().width() + spaceX;
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if (nextX - spaceX > effectiveRect.right() && lineHeight > 0) {
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x = effectiveRect.x();
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y = y + lineHeight + spaceY;
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nextX = x + item->sizeHint().width() + spaceX;
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lineHeight = 0;
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}
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x = nextX;
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lineHeight = qMax(lineHeight, item->sizeHint().height());
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}
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return y + lineHeight - rect.y() + bottom;
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}
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int FlowLayout::smartSpacing(QStyle::PixelMetric pm) const
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{
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QObject *parent = this->parent();
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if (!parent) {
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return -1;
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} else if (parent->isWidgetType()) {
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QWidget *pw = static_cast<QWidget *>(parent);
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return pw->style()->pixelMetric(pm, 0, pw);
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} else {
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return static_cast<QLayout *>(parent)->spacing();
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}
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}
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void FlowLayout::insertWidgetAt(QWidget *widget, int index)
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{
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addWidget(widget);
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this->itemList.move(this->itemList.count()-1, 0);
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//this->itemList.insert(index, new QWidgetItem(widget));
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}
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if (!testOnly)
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item->setGeometry(QRect(QPoint(x, y), item->sizeHint()));
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x = nextX;
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lineHeight = qMax(lineHeight, item->sizeHint().height());
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}
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return y + lineHeight - rect.y() + bottom;
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}
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//! [11]
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//! [12]
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int FlowLayout::smartSpacing(QStyle::PixelMetric pm) const
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{
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QObject *parent = this->parent();
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if (!parent) {
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return -1;
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} else if (parent->isWidgetType()) {
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QWidget *pw = static_cast<QWidget *>(parent);
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return pw->style()->pixelMetric(pm, nullptr, pw);
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} else {
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return static_cast<QLayout *>(parent)->spacing();
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}
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}
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//! [12]
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152
flowlayout.h
152
flowlayout.h
@ -1,77 +1,89 @@
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/****************************************************************************
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||||
**
|
||||
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
|
||||
** All rights reserved.
|
||||
** Contact: Nokia Corporation (qt-info@nokia.com)
|
||||
**
|
||||
** 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 Nokia Corporation and its Subsidiary(-ies) 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."
|
||||
** $QT_END_LICENSE$
|
||||
**
|
||||
****************************************************************************/
|
||||
**
|
||||
** Copyright (C) 2016 The Qt Company Ltd.
|
||||
** Contact: https://www.qt.io/licensing/
|
||||
**
|
||||
** This file is part of the examples of the Qt Toolkit.
|
||||
**
|
||||
** $QT_BEGIN_LICENSE:BSD$
|
||||
** 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.
|
||||
**
|
||||
** BSD License Usage
|
||||
** Alternatively, 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
|
||||
#ifndef FLOWLAYOUT_H
|
||||
#define FLOWLAYOUT_H
|
||||
|
||||
#include <QLayout>
|
||||
#include <QRect>
|
||||
#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();
|
||||
#include <QLayout>
|
||||
#include <QRect>
|
||||
#include <QStyle>
|
||||
//! [0]
|
||||
class FlowLayout : public QLayout
|
||||
{
|
||||
public:
|
||||
explicit FlowLayout(QWidget *parent, int margin = -1, int hSpacing = -1, int vSpacing = -1);
|
||||
explicit 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);
|
||||
void insertWidgetAt(QWidget *widget, int index);
|
||||
void addWidgetAt(QWidget *w, int pos);
|
||||
void addItem(QLayoutItem *item) override;
|
||||
int horizontalSpacing() const;
|
||||
int verticalSpacing() const;
|
||||
Qt::Orientations expandingDirections() const override;
|
||||
bool hasHeightForWidth() const override;
|
||||
int heightForWidth(int) const override;
|
||||
int count() const override;
|
||||
QLayoutItem *itemAt(int index) const override;
|
||||
QSize minimumSize() const override;
|
||||
void setGeometry(const QRect &rect) override;
|
||||
QSize sizeHint() const override;
|
||||
QLayoutItem *takeAt(int index) override;
|
||||
|
||||
private:
|
||||
int doLayout(const QRect &rect, bool testOnly) const;
|
||||
int smartSpacing(QStyle::PixelMetric pm) const;
|
||||
private:
|
||||
int doLayout(const QRect &rect, bool testOnly) const;
|
||||
int smartSpacing(QStyle::PixelMetric pm) const;
|
||||
|
||||
QList<QLayoutItem *> itemList;
|
||||
int m_hSpace;
|
||||
int m_vSpace;
|
||||
};
|
||||
QList<QLayoutItem *> itemList;
|
||||
int m_hSpace;
|
||||
int m_vSpace;
|
||||
};
|
||||
//! [0]
|
||||
|
||||
#endif
|
||||
#endif // FLOWLAYOUT_H
|
||||
|
||||
@ -173,7 +173,7 @@ void MainWindow::searchFinished(KonaSearch *ks) {
|
||||
KonaPreviewImageView *temp = new KonaPreviewImageView();
|
||||
temp->setObjectName(QString::number(ki->getId()));
|
||||
if (insertAtBeginning) {
|
||||
flowLayout->insertWidgetAt(temp, 0); // Add @ beginning
|
||||
flowLayout->addWidgetAt(temp, 0); // Add @ beginning
|
||||
}
|
||||
else {
|
||||
flowLayout->addWidget(temp); // Add @ end
|
||||
|
||||
Loading…
Reference in New Issue
Block a user