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MainWindow.cs
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MainWindow.cs
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//
// Copyright (C) 2009 Mark Fenton
//
// 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 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
using System;
using Gtk;
using System.IO;
using System.Xml;
using System.Xml.Linq;
using BookReader;
using System.Collections;
using System.Linq;
public partial class MainWindow: Gtk.Window
{
FileStream bookFile;
StreamReader bookReader;
Int32 bookStreamPosition = 0; //stream position the top of the current page is at
public MainWindow (): base (Gtk.WindowType.Toplevel)
{
Build ();
}
protected void OnDeleteEvent (object sender, DeleteEventArgs a)
{
CleanupFileStreams();
Application.Quit ();
a.RetVal = true;
}
protected void PopulateTextArea()
{
String textline = bookReader.ReadToEnd();
booktextview.Buffer.Text = textline;
}
protected void CleanupFileStreams()
{
try
{
bookReader.Close();
bookFile.Close();
}
catch
{
//to be frank I care little if these fail, this just hides the errors if they aren't open ;)
}
}
/* Open a new text file */
protected virtual void OnOpenFileActionActivated (object sender, System.EventArgs e)
{
//close any existing files
CleanupFileStreams();
FileChooserDialog fileDialog = new FileChooserDialog("Select Book",this,FileChooserAction.Open,
"Cancel",ResponseType.Cancel,
"Open",ResponseType.Accept);
if (fileDialog.Run() != (int)ResponseType.Accept)
{
return; //nothing to do now!
}
try
{
bookFile = new FileStream(fileDialog.Filename, FileMode.Open, FileAccess.Read);
bookReader = new StreamReader(bookFile);
}
catch
{
//error loading the file - display message and handle
}
//load the bookmark list and check if we have a match
String bookmarkFileLocation = "bookmarks.xml";
try
{
XDocument xdoc = XDocument.Load(bookmarkFileLocation);
XElement root = xdoc.Element("bookreader");
//since i am no good at linq for now we only get the file position
var bookmarkList = from bkmark in //dislike this implied type thing
root.Elements("bookmark")
where (string) bkmark.Element("fileTitle") == fileDialog.Filename
select (string) bkmark.Element("filePosition");
}
catch
{
//couldn't open - maybe check exception and create new file would
//be a good idea here
}
//get rid of file window
fileDialog.Destroy();
//now populate the text display
PopulateTextArea();
}
/* Set the bookmark position for this file */
protected virtual void OnBookmarkPositionActionActivated (object sender, System.EventArgs e)
{
Int32 hashcode = bookFile.GetHashCode();
bookmark currentBookmark = new bookmark();
currentBookmark.fileHash = hashcode;
currentBookmark.fileTitle = "Not implemented";
currentBookmark.filePosition = bookStreamPosition;
//add new bookmark to list
//write bookmark to file
}
}