/// <summary>
/// fetches the persisted microwave presests
/// </summary>
private void LoadSavedPresets()
{
XmlTextReader file = null;
try
{
if (!File.Exists(FrequencyPresetsFilename))
{
throw new FileNotFoundException("Presets file \"" + FrequencyPresetsFilename + "\" does not exist!");
}
XmlSerializer xmlSerializer = new XmlSerializer(typeof(UserPresetStore));
file = new XmlTextReader(FrequencyPresetsFilename);
frequencyPresets = (UserPresetStore)xmlSerializer.Deserialize(file);
}
catch (Exception exc)
{
AppLogger.Dump(exc);
frequencyPresets = new UserPresetStore();
}
finally
{
if (file != null)
{
file.Close();
}
}
}
public void LoadSavedPositions()
{
XmlTextReader reader = null;
try
{
if (!File.Exists(SavedPositionsFileName))
{
throw new FileNotFoundException("The file \"" + SavedPositionsFileName + "\" does not exist.");
}
XmlSerializer xmlSerializer = new XmlSerializer(typeof(UserPresetStore));
reader = new XmlTextReader(SavedPositionsFileName);
PresetItems = (UserPresetStore)xmlSerializer.Deserialize(reader);
}
catch (Exception exc)
{
AppLogger.Dump(exc);
PresetItems = new UserPresetStore();
}
finally
{
if (reader != null)
{
reader.Close();
}
}
}
/// <summary>
/// Removes any items that are not in the given UserPresetStore, and updates items that do exist, retaining any images
/// </summary>
/// <param name="userPresetStore">the presets to update from -- note: this object is altered!</param>
public void UpdateItems(UserPresetStore userPresetStore)
{
Debug.WriteLine("UserPresetsControl.UpdateItems");
if (userPresetStore == null)
{
return;
}
//Step 1: Remove items that no longer exist
List <int> indexesToDelete = new List <int>();
for (int i = 0; i < this.Items.Count; i++)
{
if (!userPresetStore.Contains(this.Items[i].Preset.ID))
{
indexesToDelete.Add(i);
}
}
//iterate these backwards so the list shrinks predictably, instead of accidently deleteing the wrong items
for (int i = indexesToDelete.Count - 1; i >= 0; i--)
{
this.Delete(indexesToDelete[i]);
}
//Step 2: Update items that we still have
foreach (UserPresetItemView i in this.Items)
{
if (userPresetStore.Contains(i.Preset.ID))
{
i.Preset = userPresetStore[i.Preset.ID];
//remove items we already have, so we don't get duplicates
userPresetStore.Remove(i.Preset.ID);
}
}
//Step 3: Add new items
foreach (UserPresetItem i in userPresetStore)
{
UserPresetItemView view = new UserPresetItemView();
view.Preset = i;
this.Add(view);
}
}
public void SavedPositionsChanged(UserPresetStore savedCameraPositions)
{
_ccc.PresetItems = savedCameraPositions;
}
public void SavedPresetsChanged(UserPresetStore presets)
{
parent.FrequencyPresets = presets;
}