/// <summary>
/// Call this to check/create an xml file of avaliable photos
/// </summary>
/// <param name="datapath">The path were the data should be saved</param>
/// <param name="numberOfPhotos">the number of photos found</param>
/// <param name="database">The Xml database</param>
void ValidateDatabaseFile(ref string datapath, ref PhotoDataSet database)
{
// check that the database exists if not create it
if (!System.IO.File.Exists(datapath))
{
System.IO.File.Create(datapath).Close();
}
try
{
// check the xml document exists
if (database == null)
database = new PhotoDataSet();
// lock it
if (database.Log.Rows.Count == 0)
{
// load into it
database.ReadXml(datapath, XmlReadMode.Auto);
}
this.mNumberOfPictures = database.Photo.Count;
}
catch (Exception er)
{
database = new PhotoDataSet();
this.mNumberOfPictures = -1;
}
}
/// <summary>
/// Attempts to login to Google Accounts
/// </summary>
/// <returns></returns>
/* public bool CheckLogin(out token)
* {
* WebProxy myProxy = CreateProxy();
* PicasaWebReader reader = new PicasaWebReader(this.mUserName, this.mPassword, "WallpaperReader", myProxy);
* string CAPTCHA = string.Empty;
* string temptoken = reader.LoginToGoogle(out CAPTCHA);
* if(temptoken == string.Empty)
* return false;
* else
* token = temptoken;
*
* reader.Dispose();
* reader = null;
* myProxy = null;
* if (token == string.Empty)
* return CAPTCHA;
* else
* return token;
* }*/
/// <summary>
/// Looks for changes in the web album
/// </summary>
/// <param name="database"></param>
/// <param name="tags"></param>
/// <returns></returns>
public int Reindex(ref PhotoDataSet database, bool tags)
{
this.mDatabase = database;
DateTime lastUpdated;
if (tags)
{
lastUpdated = this.GetAllAvailablePhotos();
}
else
{
lastUpdated = this.GetUpdatedPhotos();
}
return(Update(lastUpdated));
}
/// <summary>Password1
///
/// Gets a picture changer info object
/// </summary>
/// <param name="database">The xml document containg the data</param>
/// <param name="datapath">The path to the database</param>
/// <param name="wallpaperSize">The %screen size of the wall paper</param>
/// <returns>A picture change info object that will be used to change the wallpaper</returns>
protected internal PictureChangerInfo ChangePhoto(PhotoDataSet database, string datapath, Decimal wallpaperSize)
{
this.mRandom = new Random();
int next = 0;
if (database.Photo.Count > 0)
{
// get a random number to determine which photo
try
{
next = this.mRandom.Next(0, database.Photo.Count - 1);
if (next == -1)
{
next = 0;
}
}
catch (Exception ex)
{
this.ev_ExceptionThrown(ex, "Changing photo. Getting a random number returned an out of range value");
this.mRandom = null;
return(PictureChangerInfo.nothing);
}
PicasaWebPhotoConverter photo = null;
try
{
// downloads the photo
photo = new PicasaWebPhotoConverter(database.Photo[next].Location, database.Photo[next].Height.ToString(), database.Photo[next].Width.ToString());
try
{
// create the photo as file
photo.CreateImage();
}
catch (Exception ex)
{
this.ev_ExceptionThrown(ex, "Creating photo. Downloading from web. Photo Id " + database.Photo[next].ID);
if (photo != null)
{
photo.Dispose();
}
photo = null;
this.mRandom = null;
return(PictureChangerInfo.nothing);
}
}
catch (Exception ex)
{
this.ev_ExceptionThrown(ex, "Creating photo. Creating converter. Photo Id " + database.Photo[next].ID);
if (photo != null)
{
photo.Dispose();
}
photo = null;
this.mRandom = null;
return(PictureChangerInfo.nothing);
}
try
{
// look for and deletes any bitmaps in the program directory
foreach (string file in Directory.GetFiles(datapath, "*.bmp"))
{
File.Delete(file);
}
}
catch (Exception ex)
{
this.ev_ExceptionThrown(ex, "Deleting old image. Deleting old bitmaps.");
if (photo != null)
{
photo.Dispose();
}
photo = null;
this.mRandom = null;
return(PictureChangerInfo.nothing);
}
try
{
// scales the photo to display on the screen.
photo.Scale(wallpaperSize).Save(datapath + "\\" + database.Photo[next].PhotoID + ".bmp", ImageFormat.Bmp);
}
catch (Exception ex)
{
this.ev_ExceptionThrown(ex, "Creating photo. Saving and scaling. Photo Id " + database.Photo[next].ID);
if (photo != null)
{
photo.Dispose();
}
photo = null;
return(PictureChangerInfo.nothing);
}
if (photo != null)
{
photo.Dispose();
}
photo = null;
}
else
{
return(new PictureChangerInfo(string.Empty, string.Empty, string.Empty));
}
return(new PictureChangerInfo(datapath + "\\" + database.Photo[next].PhotoID + ".bmp", database.Photo[next].Title, database.Photo[next].ID));
}
/// <summary>Password1
///
/// Gets a picture changer info object
/// </summary>
/// <param name="database">The xml document containg the data</param>
/// <param name="datapath">The path to the database</param>
/// <param name="wallpaperSize">The %screen size of the wall paper</param>
/// <returns>A picture change info object that will be used to change the wallpaper</returns>
protected internal PictureChangerInfo ChangePhoto(PhotoDataSet database,string datapath, Decimal wallpaperSize)
{
this.mRandom = new Random();
int next = 0;
if (database.Photo.Count > 0)
{
// get a random number to determine which photo
try
{
next = this.mRandom.Next(0, database.Photo.Count - 1);
if (next == -1)
next = 0;
}
catch (Exception ex)
{
this.ev_ExceptionThrown(ex, "Changing photo. Getting a random number returned an out of range value");
this.mRandom = null;
return PictureChangerInfo.nothing;
}
PicasaWebPhotoConverter photo = null;
try
{
// downloads the photo
photo = new PicasaWebPhotoConverter(database.Photo[next].Location, database.Photo[next].Height.ToString(), database.Photo[next].Width.ToString());
try
{
// create the photo as file
photo.CreateImage();
}
catch (Exception ex)
{
this.ev_ExceptionThrown(ex, "Creating photo. Downloading from web. Photo Id " + database.Photo[next].ID);
if (photo != null)
photo.Dispose();
photo = null;
this.mRandom = null;
return PictureChangerInfo.nothing;
}
}
catch (Exception ex)
{
this.ev_ExceptionThrown(ex, "Creating photo. Creating converter. Photo Id " + database.Photo[next].ID);
if (photo != null)
photo.Dispose();
photo = null;
this.mRandom = null;
return PictureChangerInfo.nothing;
}
try
{
// look for and deletes any bitmaps in the program directory
foreach (string file in Directory.GetFiles(datapath, "*.bmp"))
{
File.Delete(file);
}
}
catch (Exception ex)
{
this.ev_ExceptionThrown(ex, "Deleting old image. Deleting old bitmaps.");
if (photo != null)
photo.Dispose();
photo = null;
this.mRandom = null;
return PictureChangerInfo.nothing;
}
try
{
// scales the photo to display on the screen.
photo.Scale(wallpaperSize).Save(datapath + "\\" + database.Photo[next].PhotoID + ".bmp", ImageFormat.Bmp);
}
catch (Exception ex)
{
this.ev_ExceptionThrown(ex, "Creating photo. Saving and scaling. Photo Id " + database.Photo[next].ID);
if (photo != null)
photo.Dispose();
photo = null;
return PictureChangerInfo.nothing;
}
if (photo != null)
photo.Dispose();
photo = null;
}
else
return new PictureChangerInfo(string.Empty, string.Empty, string.Empty);
return new PictureChangerInfo(datapath + "\\" + database.Photo[next].PhotoID + ".bmp", database.Photo[next].Title, database.Photo[next].ID);
}
/// <summary>
/// Attempts to login to Google Accounts
/// </summary>
/// <returns></returns>
/* public bool CheckLogin(out token)
{
WebProxy myProxy = CreateProxy();
PicasaWebReader reader = new PicasaWebReader(this.mUserName, this.mPassword, "WallpaperReader", myProxy);
string CAPTCHA = string.Empty;
string temptoken = reader.LoginToGoogle(out CAPTCHA);
if(temptoken == string.Empty)
return false;
else
token = temptoken;
reader.Dispose();
reader = null;
myProxy = null;
if (token == string.Empty)
return CAPTCHA;
else
return token;
}*/
/// <summary>
/// Looks for changes in the web album
/// </summary>
/// <param name="database"></param>
/// <param name="tags"></param>
/// <returns></returns>
public int Reindex(ref PhotoDataSet database, bool tags)
{
this.mDatabase = database;
DateTime lastUpdated;
if (tags)
lastUpdated= this.GetAllAvailablePhotos();
else
lastUpdated = this.GetUpdatedPhotos();
return Update(lastUpdated);
}
