private void RegionsTreeView_OnPreviewMouseDoubleClick(object sender, MouseButtonEventArgs e)
{
var vm = (GeographicalViewModel)DataContext;
object selectedItem = RegionsTreeView.SelectedItem;
var region = selectedItem as GeographicalRegionViewModel;
if (region != null)
{
RegionMarker marker = MapControl.Markers.OfType <RegionMarker>().First(rm => rm.Region == region);
if (marker.Shape.IsVisible && (_popup == null || _popup.Tag != marker))
{
ZoomAndCenterRegions(new[] { marker });
vm.SelectedRegion = region;
}
}
else
{
var variety = selectedItem as GeographicalVarietyViewModel;
if (variety != null)
{
ZoomAndCenterRegions(MapControl.Markers.OfType <RegionMarker>().Where(rm => rm.Shape.IsVisible && rm.Region.Variety == variety));
vm.SelectedRegion = null;
}
}
}
private void AddRegions(IEnumerable<GeographicalRegionViewModel> regions)
{
foreach (GeographicalRegionViewModel region in regions)
{
var marker = new RegionMarker(region) {IsSelectable = _currentTool == Tool.Select};
marker.Click += Region_Click;
marker.RegenerateShape(MapControl);
MapControl.Markers.Add(marker);
}
}
private void AddRegions(IEnumerable <GeographicalRegionViewModel> regions)
{
foreach (GeographicalRegionViewModel region in regions)
{
var marker = new RegionMarker(region)
{
IsSelectable = _currentTool == Tool.Select
};
marker.Click += Region_Click;
MapControl.RegenerateShape(marker);
MapControl.Markers.Add(marker);
}
}
private void SelectRegionMarker(RegionMarker rm)
{
ClosePopup();
Point centerPoint = CalculateCenter(rm);
Point p = CalculatePopupPosition(centerPoint);
_popup = new GMapMarker(MapControl.FromLocalToLatLng((int)p.X, (int)p.Y))
{
Tag = rm, Shape = new GeographicalRegionView {
DataContext = rm.Region
}, ZIndex = 100
};
MapControl.Markers.Add(_popup);
int xOffset = 0;
if (p.X - 5 < 0)
{
xOffset = (int)-(p.X - 5);
}
else if (p.X + 205 > MapControl.ActualWidth)
{
xOffset = (int)(MapControl.ActualWidth - (p.X + 205));
}
int yOffset = 0;
if (p.Y - 5 < 0)
{
yOffset = (int)-(p.Y - 5);
}
else if (p.Y + 175 > MapControl.ActualHeight)
{
yOffset = (int)(MapControl.ActualHeight - (p.Y + 175));
}
if (xOffset != 0 || yOffset != 0)
{
MapControl.Offset(xOffset, yOffset);
}
SelectTreeRegion(rm.Region);
}
private Point CalculateCenter(RegionMarker rm)
{
long areaSum = 0;
long xSum = 0;
long ySum = 0;
for (int i = 0; i < rm.Points.Count; i++)
{
GPoint curPoint = MapControl.FromLatLngToLocal(rm.Points[i]);
GPoint nextPoint = MapControl.FromLatLngToLocal(i == rm.Points.Count - 1 ? rm.Points[0] : rm.Points[i + 1]);
long v = (curPoint.X * nextPoint.Y) - (nextPoint.X * curPoint.Y);
areaSum += v;
xSum += (curPoint.X + nextPoint.X) * v;
ySum += (curPoint.Y + nextPoint.Y) * v;
}
double areaTerm = 1.0 / (6.0 * (areaSum / 2.0));
double cx = areaTerm * xSum;
double cy = areaTerm * ySum;
return(new Point(cx, cy));
}
private Point CalculateCenter(RegionMarker rm)
{
long areaSum = 0;
long xSum = 0;
long ySum = 0;
for (int i = 0; i < rm.Points.Count; i++)
{
GPoint curPoint = MapControl.FromLatLngToLocal(rm.Points[i]);
GPoint nextPoint = MapControl.FromLatLngToLocal(i == rm.Points.Count - 1 ? rm.Points[0] : rm.Points[i + 1]);
long v = (curPoint.X * nextPoint.Y) - (nextPoint.X * curPoint.Y);
areaSum += v;
xSum += (curPoint.X + nextPoint.X) * v;
ySum += (curPoint.Y + nextPoint.Y) * v;
}
double areaTerm = 1.0 / (6.0 * (areaSum / 2.0));
double cx = areaTerm * xSum;
double cy = areaTerm * ySum;
return new Point(cx, cy);
}
private void SelectRegionMarker(RegionMarker rm)
{
ClosePopup();
Point centerPoint = CalculateCenter(rm);
Point p = CalculatePopupPosition(centerPoint);
_popup = new GMapMarker(MapControl.FromLocalToLatLng((int) p.X, (int) p.Y)) {Tag = rm, Shape = new GeographicalRegionView {DataContext = rm.Region}, ZIndex = 100};
MapControl.Markers.Add(_popup);
int xOffset = 0;
if (p.X - 5 < 0)
xOffset = (int) -(p.X - 5);
else if (p.X + 205 > MapControl.ActualWidth)
xOffset = (int) (MapControl.ActualWidth - (p.X + 205));
int yOffset = 0;
if (p.Y - 5 < 0)
yOffset = (int) -(p.Y - 5);
else if (p.Y + 175 > MapControl.ActualHeight)
yOffset = (int) (MapControl.ActualHeight - (p.Y + 175));
if (xOffset != 0 || yOffset != 0)
MapControl.Offset(xOffset, yOffset);
SelectTreeRegion(rm.Region);
}
