filebrowser.cpp

来自「KDE下的西门子手机管理程序」· C++ 代码 · 共 132 行

/***************************************************************************
                          filebrowser.cpp  -  description
                             -------------------
    begin                : Sun Feb 11 2001
    copyright            : (C) 2001 by Matthias Welwarsky
    email                : [e-mail]
 ***************************************************************************/

/***************************************************************************
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 ***************************************************************************/

#include <qlayout.h>
#include <qfileinfo.h>
#include <qstringlist.h>

#include <kdebug.h>
#include <kfilereader.h>
#include <kfiledetailview.h>
#include <ktoolbar.h>
#include <kcombobox.h>

#include "filebrowser.h"

FileBrowser::FileBrowser(QWidget *parent, const char *name ) : QWidget(parent,name) {
	init();
}

FileBrowser::~FileBrowser(){
	delete dirLister;
}

/** initialise internals */
void FileBrowser::init(){
	QVBoxLayout* layout = new QVBoxLayout(this);
	
	KToolBar* toolBar = new KToolBar(this, "toolBar");
	
	historyCombo = new KHistoryCombo(toolBar, "historyCombo");
	historyCombo->setDuplicatesEnabled(false);
	
	toolBar->insertButton(QString("up"), UpButton);
	toolBar->insertButton(QString("back"), BackButton);
	toolBar->insertButton(QString("forward"), ForwardButton);
	toolBar->insertWidget(HistoryCombo, -1, historyCombo);
	connect(toolBar, SIGNAL(clicked(int)), this, SLOT(toolBarButtonClicked(int)));
	layout->add(toolBar);
	
	fileView = new KFileDetailView(this, "fileView");
	layout->add(fileView);

	dirLister = new KFileReader();
	dirLister->setNameFilter("*.bmp");
	dirLister->setAutoUpdate(true);
	dirLister->setShowingDotFiles(false);
	
	connect(dirLister, SIGNAL(completed()), this, SLOT(updateView()));
	connect(fileView, SIGNAL(executed(QListViewItem*)), this, SLOT(executed(QListViewItem*)));
}

/** No descriptions */
void FileBrowser::executed(QListViewItem* item){
	KFileListViewItem* flvi = dynamic_cast<KFileListViewItem*>(item);
	if (!flvi) {
		kdDebug() << "FileBrowser::executed(): selected Item is no KFileListViewItem!\n";
		return;
	}
	
	// if it's a directory, dive into it.
	const KFileViewItem* fvi = flvi->fileInfo();
	if (!fvi->isFile()) {
		// strip the "file:" from the url
		setDirectory(fvi->urlString().mid(5));
		return;
	}
	
	// Implement reading the file and displaying the preview
	emit selected(fvi->urlString().mid(5));
}

/** No descriptions */
void FileBrowser::setDirectory(const QString& dir){
	currentDir = dir;
	KURL url = currentDir.path();
	dirLister->openURL(url, false);
}

/** set the directory where the browsing starts */
void FileBrowser::setDirectory(const QDir& dir){
	currentDir = dir;
	KURL url = currentDir.path();
	dirLister->openURL(url, false);
}

/** updates the view, called on directory change. */
void FileBrowser::updateView() {
	// clear the view first
	fileView->KFileView::clear();
	
	// now add the files
	fileView->addItemList(dirLister->items());
	
	// and update the view
	fileView->updateView(true);
	
	// finally, add the directory to the history
	historyCombo->addToHistory(currentDir.path());
}

/** No descriptions */
void FileBrowser::toolBarButtonClicked(int id) {
	kdDebug() << "ToolBarButtonClicked("<<id<<")\n";
	
	switch(id) {
	case UpButton: {
		if (!currentDir.cdUp())
			break;
		kdDebug() << "up to dir " << currentDir.path() << endl;
		KURL url = currentDir.path();
		dirLister->openURL(url, false);
		break;
	}
	default:
		break;
	}
}