| 1 | /** @file
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| 2 | *
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| 3 | * VBox frontends: Qt4 GUI ("VirtualBox"):
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| 4 | * VBoxProgressDialog class declaration
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| 5 | */
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| 6 |
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| 7 | /*
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| 8 | * Copyright (C) 2009 Sun Microsystems, Inc.
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| 9 | *
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| 10 | * This file is part of VirtualBox Open Source Edition (OSE), as
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| 11 | * available from http://www.virtualbox.org. This file is free software;
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| 12 | * you can redistribute it and/or modify it under the terms of the GNU
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| 13 | * General Public License (GPL) as published by the Free Software
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| 14 | * Foundation, in version 2 as it comes in the "COPYING" file of the
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| 15 | * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 16 | * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 17 | *
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| 18 | * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
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| 19 | * Clara, CA 95054 USA or visit http://www.sun.com if you need
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| 20 | * additional information or have any questions.
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| 21 | */
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| 22 |
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| 23 | #ifndef __VBoxProgressDialog_h__
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| 24 | #define __VBoxProgressDialog_h__
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| 25 |
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| 26 | /* Qt includes */
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| 27 | #include <QProgressDialog>
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| 28 |
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| 29 | /* VBox forward declarations */
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| 30 | class CProgress;
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| 31 |
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| 32 | /* Qt forward declarations */
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| 33 | class QEventLoop;
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| 34 |
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| 35 | /**
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| 36 | * A QProgressDialog enhancement that allows to:
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| 37 | *
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| 38 | * 1) prevent closing the dialog when it has no cancel button;
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| 39 | * 2) effectively track the IProgress object completion (w/o using
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| 40 | * IProgress::waitForCompletion() and w/o blocking the UI thread in any other
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| 41 | * way for too long).
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| 42 | *
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| 43 | * @note The CProgress instance is passed as a non-const reference to the
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| 44 | * constructor (to memorize COM errors if they happen), and therefore must
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| 45 | * not be destroyed before the created VBoxProgressDialog instance is
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| 46 | * destroyed.
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| 47 | */
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| 48 | class VBoxProgressDialog: protected QProgressDialog
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| 49 | {
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| 50 | Q_OBJECT;
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| 51 |
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| 52 | public:
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| 53 | VBoxProgressDialog (CProgress &aProgress, const QString &aTitle,
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| 54 | int aMinDuration = 2000, QWidget *aParent = NULL);
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| 55 |
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| 56 | int run (int aRefreshInterval);
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| 57 | bool cancelEnabled() const { return mCancelEnabled; }
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| 58 |
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| 59 | protected:
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| 60 | virtual void reject();
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| 61 | virtual void timerEvent (QTimerEvent *aEvent);
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| 62 | virtual void closeEvent (QCloseEvent *aEvent);
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| 63 |
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| 64 | private slots:
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| 65 | void cancelOperation();
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| 66 |
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| 67 | private:
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| 68 | /* Private member vars */
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| 69 | CProgress &mProgress;
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| 70 | QEventLoop *mEventLoop;
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| 71 | bool mCancelEnabled;
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| 72 | const ulong mOpCount;
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| 73 | ulong mCurOp;
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| 74 | bool mEnded;
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| 75 |
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| 76 | static const char *sOpDescTpl;
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| 77 | };
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| 78 |
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| 79 | #endif /* __VBoxProgressDialog_h__ */
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| 80 |
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