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/***************************************************************************
*
* Copyright (C) 2005 Elad Lahav (elad_lahav@users.sourceforge.net)
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*
***************************************************************************/
#include <tqapplication.h>
#include "dirscanner.h"
/**
* Class constructor.
* @param nFiles The number of files scanned since the previous event
* @param bFinished true if all files were scanned, false otherwise
*/
DirScanEvent::DirScanEvent(int nFiles, bool bFinished)
: TQCustomEvent(EventId),
m_nFiles(nFiles),
m_bFinished(bFinished)
{
}
/**
* Class constructor.
* @param pEventReceiver Pointer to an object to receive DirScanEvent
* updates
* @param pDicFiles Pointer to a map of current project files (to
avoid duplication)
*/
DirScanner::DirScanner(TQObject* pEventReceiver,
TQDict<TQListViewItem>* pDicFiles) : TQThread(),
m_pEventReceiver(pEventReceiver),
m_pDicFiles(pDicFiles)
{
}
/**
* Class destructor.
*/
DirScanner::~DirScanner()
{
}
/**
* Begins a new search for source files.
* Invokes the search thread on a given directory. The search may be either
* recursive (i.e., the search will descend to each sub-directory) or flat
* (will search the given directory only.)
* @param sDir The name of the directory to search
* @param sNameFilter Defines the search pattern
* @param bRecursive true to descend into sub-dorectories, false otherwise
*/
void DirScanner::start(const TQString& sDir, const TQString& sNameFilter,
bool bRecursive)
{
// Initialise the search parameters
m_dir = TQDir(sDir);
m_sNameFilter = sNameFilter;
m_bCancel = false;
m_bRecursive = bRecursive;
m_slFiles.clear();
// Invoke the thread
TQThread::start();
}
/**
* Begins a scan of files on the directory associated with this object.
* Note that this function is synchronous: it returns when the scan ends.
*/
void DirScanner::run()
{
int nFiles;
nFiles = scanDir(m_dir);
TQApplication::postEvent(m_pEventReceiver,
new DirScanEvent(nFiles, true));
m_setScanned.clear();
}
/**
* Recursively scans a directory for a files matching the current filter.
* @param dir A directory object set to the folder from which files are
* added
* @return The total number of files added
*/
int DirScanner::scanDir(TQDir& dir)
{
TQString sCanon;
TQStringList slDirFiles, slDirs;
TQStringList::const_iterator itr;
TQString sFile;
int nFiles = 0;
if (m_bCancel)
return -1;
// Make sure this directory has not been previously visited (e.g., through a
// symbolic link)
sCanon = dir.canonicalPath();
if (m_setScanned.exists(sCanon))
return 0;
m_setScanned.insert(sCanon);
// Add all files in this directory
slDirFiles = dir.entryList(m_sNameFilter, TQDir::Files);
for (itr = slDirFiles.begin(); itr != slDirFiles.end(); ++itr) {
sFile = dir.absPath() + "/" + *itr;
// Make sure an entry for this file does not exist
if (m_pDicFiles->find(sFile) == NULL) {
m_slFiles.append(sFile);
nFiles++;
}
}
TQApplication::postEvent(m_pEventReceiver,
new DirScanEvent(nFiles, false));
// Recurse into sub-directories, if requested
if (!m_bRecursive)
return nFiles;
slDirs = dir.entryList(TQDir::Dirs);
// Iterate the list of sub-directories
for (itr = slDirs.begin(); itr != slDirs.end(); ++itr) {
if (m_bCancel)
return -1;
// Skip the "." and ".." directories
if (*itr == "." || *itr == "..")
continue;
// Add the files in each sub-directory
TQDir dirSub(dir);
if (dirSub.cd(*itr))
nFiles += scanDir(dirSub);
}
return nFiles;
}
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