private void InitializeTracker()
{
bool isEmpty = _layout == null;
bool willBeEmpty = false;
if (_layoutFile == null || _layoutName == null)
{
willBeEmpty = true;
}
else
{
TrackerLayout l;
if (!_layoutFile.layouts.TryGetValue(_layoutName, out l))
{
willBeEmpty = true;
}
}
if (!isEmpty && willBeEmpty)
{
UninitializeTracker();
}
else if (!willBeEmpty)
{
// ACTUALLY INITIALIZE
FreeLayoutResources();
_layout = _layoutFile.layouts[_layoutName];
if (cachedViews.ContainsKey(_layoutName))
{
_renderer = cachedViews[_layoutName];
_renderer.Update(); // Todo: determine if cached views should update in realtime, or if not, they should at least to allow redundant invalidations
}
else
{
_renderer = new LayoutRenderer(_layoutFile, _layoutName);
if (CacheViews && !cachedViews.ContainsKey(_layoutName))
{
cachedViews.Add(_layoutName, _renderer);
}
}
foreach (var placement in _layout.maps)
{
var mmap = _layoutFile.GetEffectiveMetrics(placement);
Rectangle bounds = new Rectangle(
mmap.x,
mmap.y,
mmap.cellWidth * mmap.gridWidth,
mmap.cellHeight * mmap.gridHeight
);
mapBounds.Add(Tuple.Create(mmap, bounds));
}
SetupPicker();
Invalidate(new Rectangle(0, 0, _renderer.Width, _renderer.Height));
}
}
private void TryLoadContents()
{
bool willBeLoaded = _layoutFile != null && _layoutName != null && _markerSetPlacement != null && _mapPlacement != null;
if (_wasLoaded && !willBeLoaded)
{
this._tileSource = null;
this.Invalidate();
}
if (willBeLoaded)
{
var metrics = _layoutFile.GetEffectiveMetrics(_mapPlacement);
this._tileSource = _layoutFile.Meta.GetImage(_markerSetPlacement.source);
this._tileWidth = metrics.cellWidth; //MapPlacement.cellWidth;
this._tileHeight = metrics.cellHeight; //MapPlacement.cellHeight;
this._tileCount = _tileSource.Width / _tileWidth;
this.Invalidate();
}
_wasLoaded = willBeLoaded;
}
