mirror of
https://github.com/xiaoyifang/goldendict-ng.git
synced 2024-11-30 13:24:05 +00:00
51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
/* This file is (c) 2008-2012 Konstantin Isakov <ikm@goldendict.org>
|
|
* Part of GoldenDict. Licensed under GPLv3 or later, see the LICENSE file */
|
|
|
|
#ifndef __EXTERNALVIEWER_HH_INCLUDED__
|
|
#define __EXTERNALVIEWER_HH_INCLUDED__
|
|
|
|
#include <QObject>
|
|
#include <QTemporaryFile>
|
|
#include <QProcess>
|
|
#include "ex.hh"
|
|
|
|
/// An external viewer, opens resources in other programs
|
|
class ExternalViewer: public QObject
|
|
{
|
|
Q_OBJECT
|
|
|
|
QTemporaryFile tempFile;
|
|
QProcess viewer;
|
|
QString viewerCmdLine;
|
|
QString tempFileName;
|
|
|
|
public:
|
|
|
|
DEF_EX( Ex, "External viewer exception", std::exception )
|
|
DEF_EX( exCantCreateTempFile, "Couldn't create temporary file.", Ex )
|
|
DEF_EX_STR( exCantRunViewer, "Couldn't run external viewer:", Ex )
|
|
|
|
ExternalViewer( const char * data, int size,
|
|
QString const & extension, QString const & viewerCmdLine,
|
|
QObject * parent = 0 )
|
|
;
|
|
|
|
// Once this is called, the object will be deleted when it's done, even if
|
|
// the function throws.
|
|
void start() ;
|
|
|
|
/// If the external process is running, requests its termination and returns
|
|
/// false - expect the QObject::destroyed() signal to be emitted soon.
|
|
/// If the external process is not running, returns true, the object
|
|
/// destruction is not necessarily scheduled in this case.
|
|
bool stop();
|
|
/// Kills the process if it is running and waits for it to finish.
|
|
void stopSynchronously();
|
|
};
|
|
|
|
/// Call this function instead of simply deleting viewer to prevent the
|
|
/// "QProcess: Destroyed while process X is still running." warning in log.
|
|
void stopAndDestroySynchronously( ExternalViewer * viewer );
|
|
|
|
#endif
|