879f98106d
Introduce nullptr and replace foreach with new C++11 range based for loops. Minor fixups of signals, file dialog usage. Apply the same changes to the ItemViews/puzzle example since it shares parts of the code with DragAndDrop/puzzle. Make some changes to both examples to that the diff of the two becomes small for easier comparison. Task-number: QTBUG-60635 Change-Id: I8af824229ebac24d6ec151eae92176d227695490 Reviewed-by: Venugopal Shivashankar <Venugopal.Shivashankar@qt.io> Reviewed-by: Gatis Paeglis <gatis.paeglis@qt.io>
88 lines
3.1 KiB
C++
88 lines
3.1 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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** $QT_BEGIN_LICENSE:BSD$
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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** $QT_END_LICENSE$
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****************************************************************************/
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#ifndef DROPAREA_H
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#define DROPAREA_H
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#include <QLabel>
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QT_BEGIN_NAMESPACE
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class QMimeData;
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QT_END_NAMESPACE
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//! [DropArea header part1]
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class DropArea : public QLabel
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{
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Q_OBJECT
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public:
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explicit DropArea(QWidget *parent = nullptr);
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public slots:
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void clear();
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signals:
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void changed(const QMimeData *mimeData = nullptr);
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//! [DropArea header part1]
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//! [DropArea header part2]
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protected:
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void dragEnterEvent(QDragEnterEvent *event) override;
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void dragMoveEvent(QDragMoveEvent *event) override;
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void dragLeaveEvent(QDragLeaveEvent *event) override;
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void dropEvent(QDropEvent *event) override;
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private:
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QLabel *label;
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};
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//! [DropArea header part2]
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#endif // DROPAREA_H
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