dirview.cpp.bak

这是一个自己开发的键盘驱动代码

/****************************************************************************
** $Id: qt/dirview.cpp   3.3.6   edited Aug 31 2005 $
**
** Copyright (C) 1992-2005 Trolltech AS.  All rights reserved.
**
** This file is part of an example program for Qt.  This example
** program may be used, distributed and modified without limitation.
**
*****************************************************************************/

#include "dirview.h"

#include <qdir.h>
#include <qfile.h>
#include <qfileinfo.h>
#include <qpixmap.h>
#include <qimage.h>
#include <qstringlist.h>
#include <qapplication.h>
#include <qheader.h>
#include <qmessagebox.h>

#include <stdlib.h>

static const char* folder_closed_xpm[]={
    "16 16 9 1",
    "g c #808080",
    "b c #c0c000",
    "e c #c0c0c0",
    "# c #000000",
    "c c #ffff00",
    ". c None",
    "a c #585858",
    "f c #a0a0a4",
    "d c #ffffff",
    "..###...........",
    ".#abc##.........",
    ".#daabc#####....",
    ".#ddeaabbccc#...",
    ".#dedeeabbbba...",
    ".#edeeeeaaaab#..",
    ".#deeeeeeefe#ba.",
    ".#eeeeeeefef#ba.",
    ".#eeeeeefeff#ba.",
    ".#eeeeefefff#ba.",
    ".##geefeffff#ba.",
    "...##gefffff#ba.",
    ".....##fffff#ba.",
    ".......##fff#b##",
    ".........##f#b##",
    "...........####."};

static const char* folder_open_xpm[]={
    "16 16 11 1",
    "# c #000000",
    "g c #c0c0c0",
    "e c #303030",
    "a c #ffa858",
    "b c #808080",
    "d c #a0a0a4",
    "f c #585858",
    "c c #ffdca8",
    "h c #dcdcdc",
    "i c #ffffff",
    ". c None",
    "....###.........",
    "....#ab##.......",
    "....#acab####...",
    "###.#acccccca#..",
    "#ddefaaaccccca#.",
    "#bdddbaaaacccab#",
    ".eddddbbaaaacab#",
    ".#bddggdbbaaaab#",
    "..edgdggggbbaab#",
    "..#bgggghghdaab#",
    "...ebhggghicfab#",
    "....#edhhiiidab#",
    "......#egiiicfb#",
    "........#egiibb#",
    "..........#egib#",
    "............#ee#"};

static const char * folder_locked[]={
    "16 16 10 1",
    "h c #808080",
    "b c #ffa858",
    "f c #c0c0c0",
    "e c #c05800",
    "# c #000000",
    "c c #ffdca8",
    ". c None",
    "a c #585858",
    "g c #a0a0a4",
    "d c #ffffff",
    "..#a#...........",
    ".#abc####.......",
    ".#daa#eee#......",
    ".#ddf#e##b#.....",
    ".#dfd#e#bcb##...",
    ".#fdccc#daaab#..",
    ".#dfbbbccgfg#ba.",
    ".#ffb#ebbfgg#ba.",
    ".#ffbbe#bggg#ba.",
    ".#fffbbebggg#ba.",
    ".##hf#ebbggg#ba.",
    "...###e#gggg#ba.",
    ".....#e#gggg#ba.",
    "......###ggg#b##",
    ".........##g#b##",
    "...........####."};

static const char * pix_file []={
    "16 16 7 1",
    "# c #000000",
    "b c #ffffff",
    "e c #000000",
    "d c #404000",
    "c c #c0c000",
    "a c #ffffc0",
    ". c None",
    "................",
    ".........#......",
    "......#.#a##....",
    ".....#b#bbba##..",
    "....#b#bbbabbb#.",
    "...#b#bba##bb#..",
    "..#b#abb#bb##...",
    ".#a#aab#bbbab##.",
    "#a#aaa#bcbbbbbb#",
    "#ccdc#bcbbcbbb#.",
    ".##c#bcbbcabb#..",
    "...#acbacbbbe...",
    "..#aaaacaba#....",
    "...##aaaaa#.....",
    ".....##aa#......",
    ".......##......."};

QPixmap *folderLocked = 0;
QPixmap *folderClosed = 0;
QPixmap *folderOpen = 0;
QPixmap *fileNormal = 0;

/*****************************************************************************
 *
 * Class Directory
 *
 *****************************************************************************/

Directory::Directory( Directory * parent, const QString& filename )
    : QListViewItem( parent ), f(filename),
      showDirsOnly( parent->showDirsOnly ),
      pix( 0 )
{
    p = parent;
    readable = QDir( fullName() ).isReadable();

    if ( !readable )
	setPixmap( folderLocked );
    else
	setPixmap( folderClosed );
}


Directory::Directory( QListView * parent, const QString& filename )
    : QListViewItem( parent ), f(filename),
      showDirsOnly( ( (DirectoryView*)parent )->showDirsOnly() ),
      pix( 0 )
{
    p = 0;
    readable = QDir( fullName() ).isReadable();
}


void Directory::setPixmap( QPixmap *px )
{
    pix = px;
    setup();
    widthChanged( 0 );
    invalidateHeight();
    repaint();
}


const QPixmap *Directory::pixmap( int i ) const
{
    if ( i )
	return 0;
    return pix;
}

void Directory::setOpen( bool o )
{
    if ( o ) setPixmap( folderOpen );
    else setPixmap( folderClosed );

    if ( o && !childCount() ) {
			QString s( fullName() );
			QDir thisDir( s );
			if ( !thisDir.isReadable() ) {
	    	readable = FALSE;
	    	setExpandable( FALSE );
	    	return;
			}

			listView()->setUpdatesEnabled( FALSE );
			const QFileInfoList * files = thisDir.entryInfoList();
			if ( files ) {
	    	QFileInfoListIterator it( *files );
	    	QFileInfo * fi;
	    	while( (fi=it.current()) != 0 ) {
					++it;
					if ( fi->fileName() == "." || fi->fileName() == ".." )
		    		; // nothing
					else if ( fi->isSymLink() && !showDirsOnly ) {
		    		FileItem *item = new FileItem( this, fi->fileName(),
						     "Symbolic Link" );
		    		item->setPixmap( fileNormal );
					}
					else if ( fi->isDir() ) (void)new Directory( this, fi->fileName() );
					else if ( !showDirsOnly ) {
							for ( QStringList::Iterator its = ( (DirectoryView*)listView() )->format.begin(); its != ( (DirectoryView*)listView() )->format.end(); its++ ) {
								if ( *its == "JPEG") *its = "JPG";
								if ( ( fi->extension( false ) ).upper() == *its ) {
		    					FileItem *item = new FileItem( this, fi->fileName(),
					  				fi->isFile()?"File":"Special" );
		    					item->setPixmap( fileNormal );
		    					break;
		    				}
		    			}
					}
	    	}
			}
			listView()->setUpdatesEnabled( TRUE );
    }
    QListViewItem::setOpen( o );
}

void Directory::setup()
{
    setExpandable( TRUE );
    QListViewItem::setup();
}


QString Directory::fullName()
{
    QString s;
    if ( p ) {
	s = p->fullName();
	s.append( f.name() );
	s.append( "/" );
    } else {
	s = f.name();
    }
    return s;
}


QString Directory::text( int column ) const
{
    if ( column == 0 )
	return f.name();
    else if ( readable )
	return "Directory";
    else
	return "Unreadable Directory";
}

/*****************************************************************************
 *
 * Class DirectoryView
 *
 *****************************************************************************/

DirectoryView::DirectoryView( QWidget *parent, const char *name, bool sdo, const QStringList fmt )
    : QListView( parent, name ), format( fmt ), dirsOnly( sdo )
{
    if ( !folderLocked ) {
			folderLocked = new QPixmap( folder_locked );
			folderClosed = new QPixmap( folder_closed_xpm );
			folderOpen = new QPixmap( folder_open_xpm );
			fileNormal = new QPixmap( pix_file );
    }

    connect( this, SIGNAL( doubleClicked( QListViewItem * ) ),
	     this, SLOT( slotFolderSelected( QListViewItem * ) ) );
    connect( this, SIGNAL( returnPressed( QListViewItem * ) ),
	     this, SLOT( slotFolderSelected( QListViewItem * ) ) );
    
    header()->hide();
}

void DirectoryView::slotFolderSelected( QListViewItem *i )
{
    if ( !i )
			return;
		
		Directory *dir = (Directory*)i;
		QString fp = ( (DirectoryView*)i->listView() )->fullPath( i );
		QString fn = i->text( 0 );
		
		if ( dir->text(1) == "Directory" ) emit folderSelected( dir->fullName() );
    else emit fileSelected( fp );
}

QString DirectoryView::fullPath(QListViewItem* item)
{
    QString fullpath = item->text(0);
    while ( (item=item->parent()) ) {
	if ( item->parent() )
	    fullpath = item->text(0) + "/" + fullpath;
	else
	    fullpath = item->text(0) + fullpath;
    }
#ifdef Q_WS_WIN
	if (fullpath.length() > 2 && fullpath[1] != ':') {
		QDir dir(fullpath);
		fullpath = dir.currentDirPath().left(2) + fullpath;
	}
#endif
	
    return fullpath;
}

void DirectoryView::setDir( const QString &s )
{
    QListViewItemIterator it( this );
    ++it;
    for ( ; it.current(); ++it ) {
	it.current()->setOpen( false );
    }

    QStringList lst( QStringList::split( "/", s ) );
    QListViewItem *item = firstChild();
    QStringList::Iterator it2 = lst.begin();
    for ( ; it2 != lst.end(); ++it2 ) {
			while ( item ) {
	  		if ( item->text( 0 ) == *it2 ) {
					item->setOpen( true );
					break;
	  		}
	  	item = item->itemBelow();
			}
    }

    if ( item )
	setCurrentItem( item );
	if ( item->firstChild() )
		ensureItemVisible( item->firstChild() );
	else ensureItemVisible( item );
}

void FileItem::setPixmap( QPixmap *p )
{
    pix = p;
    setup();
    widthChanged( 0 );
    invalidateHeight();
    repaint();
}


const QPixmap *FileItem::pixmap( int i ) const
{
    if ( i )
	return 0;
    return pix;
}