/// <summary>
/// Set the provided image as the background
/// </summary>
/// <param name="entry">the image entry</param>
private void SetBackgroundImage(WallpaperEntry entry)
{
try
{
// try to download image to cache
string localFile = this.GetLocalCopyOfImage(entry, false);
if (localFile == null)
{
throw new Exception("Could not get local copy of the image");
}
// set the new file as the desktop wallpaper
BackgroundSetter.SetBackgroundImage(localFile, Settings.Instance.DisplayMode, Settings.Instance.GetBackgroundColor());
}
catch (Exception e)
{
throw new Exception("Setting image did not complete fully", e);
}
Settings.Instance.SelectedImage = entry.FilePath;
this.trayIcon.SetToolText(entry.FilePath);
}
/// <summary>
/// Switch to/from the presentation mode
/// </summary>
/// <param name="enable">whether to enable or disable the presentation mode</param>
/// <exception cref="Exception">Can throw exception</exception>
public void SwitchPresentationMode(bool enable)
{
if (string.IsNullOrEmpty(Settings.Instance.PresentationImage) ||
Settings.Instance.InPresentationMode == enable)
{
// nothing to do if it is already set appropriately
return;
}
try
{
string imageFile = enable ? Settings.Instance.PresentationImage : Settings.Instance.SelectedImage;
if (string.IsNullOrEmpty(imageFile))
{
throw new Exception("No image file found");
}
// download image to cache
string localFile = this.GetLocalCopyOfImage(imageFile, false);
if (localFile == null)
{
throw new Exception("Could not get local copy of the image");
}
//set the new file as the desktop wallpaper
BackgroundSetter.SetBackgroundImage(localFile, Settings.Instance.DisplayMode, Settings.Instance.GetBackgroundColor());
this.trayIcon.SetToolText(imageFile);
// update the UI elements
this.UpdatePresentationMode(enable);
}
catch (Exception e)
{
ErrorLog.Log("Failed to switch presentation mode.", e);
}
}
