private void selectNextPolygonPoint()
{
if (LastSelectedShapePolygonPoints == null && LastSelectedShape != null)
{
LastSelectedShapePolygonPoints = LastSelectedShape.GetPolygonPointsObserver();
UpdateLastSelectedPolygonPoints();
}
if (LastSelectedShapePolygonPoints != null)
{
PolyPointDescriptor point;
if (LastSelectedShapePolygonPoints.HasPoints())
{
if (!LastSelectedShapePolygonPoints.HasNext())
{
LastSelectedShapePolygonPoints.ResetIterator();
}
point = LastSelectedShapePolygonPoints.Next();
}
else
{
point = new PolyPointDescriptor();
}
SpeakPolygonPoint(LastSelectedShapePolygonPoints);
fire_PolygonPointSelected(LastSelectedShapePolygonPoints, point);
}
else
{
fire_PolygonPointSelected_Reset();
}
}
private void selectPreviousePolygonPoint()
{
if (LastSelectedShapePolygonPoints != null)
{
PolyPointDescriptor point;
if (LastSelectedShapePolygonPoints.HasPoints())
{
if (LastSelectedShapePolygonPoints.HasPrevious())
{
point = LastSelectedShapePolygonPoints.Previous();
}
else
{
point = LastSelectedShapePolygonPoints.Last();
}
}
else
{
point = new PolyPointDescriptor();
}
SpeakPolygonPoint(LastSelectedShapePolygonPoints);
fire_PolygonPointSelected(LastSelectedShapePolygonPoints, point);
}
else
{
fire_PolygonPointSelected_Reset();
}
}
public Point TransformPointCoordinatesIntoScreenCoordinates(PolyPointDescriptor polyPointDescriptor)
{
return TransformPointCoordinatesIntoScreenCoordinates(polyPointDescriptor.X, polyPointDescriptor.Y);
}
/// <summary>
/// Adds or updates a poly point descriptor. Point will be updated if it already exist; otherwise it will be added.
/// </summary>
/// <param name="ppd">The descriptor for a poly polygon point.</param>
/// <param name="index">The one-dimensional index of the poly point to add to. A index <= 0 will add the point as fist; an index >= the length of the list will add it as last. Default is <c>Int32.MaxValue</c></param>
/// <param name="updateDirectly">if set to <c>true</c> the point lists will be updated in the shape properties directly;
/// otherwise you have to call <see cref="WritePointsToPolygon" /> manually.
/// NOTICE: disable this if you manipulate a whole bunch of points. Updating all changed point at once is much faster!
/// ATTENTION: your changes could bee overwritten by calling the <see cref="Update" />function.
/// Default is <c>true</c></param>
/// <param name="geometry">if set to <c>true</c> the 'Geometry' property is used (these are the untransformed coordinates of the polygon). Default is <c>false</c></param>
/// <returns>
/// <c>true</c> if the point could be added
/// </returns>
public bool AddOrUpdatePolyPointDescriptor(PolyPointDescriptor ppd, int index = Int32.MaxValue, bool updateDirectly = true, bool geometry = false)
{
int i, pi;
Transform1DindexTo2DpolyPolygonIndex(index, out i, out pi);
return AddOrUpdatePolyPointDescriptor(ppd, i, pi, updateDirectly, geometry);
}
/// <summary>
/// Adds or updates a poly point descriptor. Point will be updated if it already exist; otherwise it will be added.
/// </summary>
/// <param name="ppd">The descriptor for a poly polygon point.</param>
/// <param name="index">The index of the poly point to add to. A index <= 0 will add the point as fist; an index >= the length of the list will add it as last. Default is <c>Int32.MaxValue</c></param>
/// <param name="polygonIndex">Index of the polygon if this is a poly polygon. Default is 0</param>
/// <param name="updateDirectly">if set to <c>true</c> the point lists will be updated in the shape properties directly;
/// otherwise you have to call <see cref="WritePointsToPolygon" /> manually.
/// NOTICE: disable this if you manipulate a whole bunch of points. Updating all changed point at once is much faster!
/// ATTENTION: your changes could bee overwritten by calling the <see cref="Update" />function.
/// Default is <c>true</c></param>
/// <param name="geometry">if set to <c>true</c> the 'Geometry' property is used (these are the untransformed coordinates of the polygon). Default is <c>false</c></param>
/// <returns>
/// <c>true</c> if the point could be added
/// </returns>
public bool AddOrUpdatePolyPointDescriptor(PolyPointDescriptor ppd, int index, int polygonIndex, bool updateDirectly = true, bool geometry = false)
{
if (IsValid())
{
try
{
_updating = true;
if (CachedPolyPointList != null && CachedPolyPointList.Count > polygonIndex)
{
if (CachedPolyPointList[polygonIndex] != null && CachedPolyPointList[polygonIndex].Count > index)
{
return UpdatePolyPointDescriptor(ppd, index, polygonIndex, updateDirectly, geometry);
}
else
{
return AddPolyPointDescriptor(ppd, index, polygonIndex, updateDirectly, geometry);
}
}
}
finally { _updating = false; }
}
return false;
}
/// <summary>
/// Adds a poly point descriptor.
/// </summary>
/// <param name="ppd">The descriptor for a poly polygon point.</param>
/// <param name="index">The index of the poly point to add to. A index <= 0 will add the point as fist; an index > the length of the list will add it as last. Default is <c>Int32.MaxValue</c></param>
/// <param name="polygonIndex">Index of the polygon if this is a poly polygon. Default is 0</param>
/// <param name="updateDirectly">if set to <c>true</c> the point lists will be updated in the shape properties directly;
/// otherwise you have to call <see cref="WritePointsToPolygon" /> manually.
/// NOTICE: disable this if you manipulate a whole bunch of points. Updating all changed point at once is much faster!
/// ATTENTION: your changes could bee overwritten by calling the <see cref="Update" />function.
/// Default is <c>true</c></param>
/// <param name="geometry">if set to <c>true</c> the 'Geometry' property is used (these are the untransformed coordinates of the polygon). Default is <c>false</c></param>
/// <returns>
/// <c>true</c> if the point could be added
/// </returns>
public bool AddPolyPointDescriptor(PolyPointDescriptor ppd, int index = Int32.MaxValue, int polygonIndex = 0, bool updateDirectly = true, bool geometry = false)
{
if (IsValid())
{
if (CachedPolyPointList != null)
{
try
{
_updating = true;
if (CachedPolyPointList.Count > polygonIndex)
{
if (CachedPolyPointList[polygonIndex] == null) CachedPolyPointList[polygonIndex] = new List<PolyPointDescriptor>();
if (index < CachedPolyPointList[polygonIndex].Count) { CachedPolyPointList[polygonIndex].Insert(Math.Max(index, 0), ppd); }
else { CachedPolyPointList[polygonIndex].Add(ppd); }
}
else
{
CachedPolyPointList.Add(
new List<PolyPointDescriptor>(){
ppd
}
);
}
if (updateDirectly) { return WritePointsToPolygon(geometry); }
else { return true; }
}
finally { _updating = false; }
}
}
return false;
}
/// <summary>
/// Updates a poly point descriptor.
/// </summary>
/// <param name="ppd">The descriptor for a poly polygon point.</param>
/// <param name="index">The index of the poly point to update.</param>
/// <param name="polygonIndex">Index of the polygon if this is a poly polygon. Default is 0</param>
/// <param name="updateDirectly">if set to <c>true</c> the point lists will be updated in the shape properties directly;
/// otherwise you have to call <see cref="WritePointsToPolygon"/> manually.
/// NOTICE: disable this if you manipulate a whole bunch of points. Updating all changed point at once is much faster!
/// ATTENTION: your changes could bee overwritten by calling the <see cref="Update"/>function.
/// Default is <c>true</c></param>
/// <param name="geometry">if set to <c>true</c> the 'Geometry' property is used (these are the untransformed coordinates of the polygon). Default is <c>false</c></param>
/// <returns><c>true</c> if the point could be updated</returns>
public bool UpdatePolyPointDescriptor(PolyPointDescriptor ppd, int index, int polygonIndex, bool updateDirectly = true, bool geometry = false)
{
if (IsValid())
{
try
{
_updating = true;
if (CachedPolyPointList != null && CachedPolyPointList.Count > polygonIndex)
{
if (CachedPolyPointList[polygonIndex] == null) CachedPolyPointList[polygonIndex] = new List<PolyPointDescriptor>();
if (CachedPolyPointList[polygonIndex].Count > index)
{
CachedPolyPointList[polygonIndex][index] = ppd;
if (updateDirectly) { return WritePointsToPolygon(geometry); }
else { return true; }
}
}
}
finally { _updating = false; }
}
return false;
}