void AddLine(UnitPoint point, DrawTools.Line line)
{
if (m_originalLines.ContainsKey(line) == false)
{
line.Highlighted = true;
LinePoints lp = new LinePoints();
lp.SetLine(line);
lp.MousePoint = point;
m_originalLines.Add(line, lp);
}
}
void AddLine(UnitPoint point, DrawTools.LineTool line)
{
try
{
if (m_originalLines.ContainsKey(line) == false)
{
line.Highlighted = true;
LinePoints lp = new LinePoints();
lp.SetLine(line);
lp.MousePoint = point;
m_originalLines.Add(line, lp);
}
}
catch (Exception ex)
{ throw ex; }
}
/// <summary>
///
/// </summary>
/// <param name="canvas"></param>
/// <param name="point"></param>
/// <param name="snappoint"></param>
/// <returns></returns>
public eDrawObjectMouseDown OnMouseDown(ICanvas canvas, UnitPoint point, ISnapPoint snappoint)
{
List <IDrawObject> drawitems = canvas.DataModel.GetHitObjects(canvas, point);
List <DrawTools.Line> lines = GetLines(drawitems);
// add to source lines
if (m_originalLines.Count == 0 || Control.ModifierKeys == Keys.Shift)
{
foreach (DrawTools.Line line in lines)
{
AddLine(point, line);
}
SetSelectHint();
return(eDrawObjectMouseDown.Continue);
}
if (m_originalLines.Count == 0 || Control.ModifierKeys == Keys.Control)
{
foreach (DrawTools.Line line in lines)
{
if (m_originalLines.ContainsKey(line))
{
RemoveLine(line);
}
else
{
AddLine(point, line);
}
}
SetSelectHint();
return(eDrawObjectMouseDown.Continue);
}
if (drawitems.Count == 0)
{
return(eDrawObjectMouseDown.Continue);
}
// all lines have been added, now find edge to where to extend
if (drawitems[0] is DrawTools.Line)
{
DrawTools.Line edge = (DrawTools.Line)drawitems[0];
bool modified = false;
foreach (LinePoints originalLp in m_originalLines.Values)
{
UnitPoint intersectpoint = HitUtil.LinesIntersectPoint(edge.P1, edge.P2, originalLp.Line.P1, originalLp.Line.P2);
// lines intersect so shrink line
if (intersectpoint != UnitPoint.Empty)
{
LinePoints lp = new LinePoints();
lp.SetLine(originalLp.Line);
lp.MousePoint = originalLp.MousePoint;
m_modifiedLines.Add(lp.Line, lp);
lp.SetNewPoints(lp.Line, lp.MousePoint, intersectpoint);
modified = true;
continue;
}
// lines do not intersect, find apparent intersect point on existing edge line
if (intersectpoint == UnitPoint.Empty)
{
UnitPoint apprarentISPoint = HitUtil.FindApparentIntersectPoint(
edge.P1,
edge.P2,
originalLp.Line.P1,
originalLp.Line.P2,
false,
true);
if (apprarentISPoint == UnitPoint.Empty)
{
continue;
}
modified = true;
originalLp.Line.ExtendLineToPoint(apprarentISPoint);
LinePoints lp = new LinePoints();
lp.SetLine(originalLp.Line);
lp.MousePoint = point;
m_modifiedLines.Add(lp.Line, lp);
}
}
if (modified)
{
canvas.DataModel.AfterEditObjects(this);
}
return(eDrawObjectMouseDown.Done);
}
if (drawitems[0] is DrawTools.Arc)
{
DrawTools.Arc edge = (DrawTools.Arc)drawitems[0];
foreach (LinePoints originalLp in m_originalLines.Values)
{
}
bool modified = false;
}
return(eDrawObjectMouseDown.Done);
}
public eDrawObjectMouseDown OnMouseDown(ICanvas canvas, UnitPoint point, ISnapPoint snappoint)
{
List<IDrawObject> drawitems = canvas.DataModel.GetHitObjects(canvas, point);
List<DrawTools.Line> lines = GetLines(drawitems);
// add to source lines
if (m_originalLines.Count == 0 || Control.ModifierKeys == Keys.Shift)
{
foreach (DrawTools.Line line in lines)
AddLine(point, line);
SetSelectHint();
return eDrawObjectMouseDown.Continue;
}
if (m_originalLines.Count == 0 || Control.ModifierKeys == Keys.Control)
{
foreach (DrawTools.Line line in lines)
{
if (m_originalLines.ContainsKey(line))
RemoveLine(line);
else
AddLine(point, line);
}
SetSelectHint();
return eDrawObjectMouseDown.Continue;
}
if (drawitems.Count == 0)
return eDrawObjectMouseDown.Continue;
// all lines have been added, now find edge to where to extend
if (drawitems[0] is DrawTools.Line)
{
DrawTools.Line edge = (DrawTools.Line)drawitems[0];
bool modified = false;
foreach (LinePoints originalLp in m_originalLines.Values)
{
UnitPoint intersectpoint = HitUtil.LinesIntersectPoint(edge.P1, edge.P2, originalLp.Line.P1, originalLp.Line.P2);
// lines intersect so shrink line
if (intersectpoint != UnitPoint.Empty)
{
LinePoints lp = new LinePoints();
lp.SetLine(originalLp.Line);
lp.MousePoint = originalLp.MousePoint;
m_modifiedLines.Add(lp.Line, lp);
lp.SetNewPoints(lp.Line, lp.MousePoint, intersectpoint);
modified = true;
continue;
}
// lines do not intersect, find apparent intersect point on existing edge line
if (intersectpoint == UnitPoint.Empty)
{
UnitPoint apprarentISPoint = HitUtil.FindApparentIntersectPoint(
edge.P1,
edge.P2,
originalLp.Line.P1,
originalLp.Line.P2,
false,
true);
if (apprarentISPoint == UnitPoint.Empty)
continue;
modified = true;
originalLp.Line.ExtendLineToPoint(apprarentISPoint);
LinePoints lp = new LinePoints();
lp.SetLine(originalLp.Line);
lp.MousePoint = point;
m_modifiedLines.Add(lp.Line, lp);
}
}
if (modified)
canvas.DataModel.AfterEditObjects(this);
return eDrawObjectMouseDown.Done;
}
if (drawitems[0] is DrawTools.Arc)
{
DrawTools.Arc edge = (DrawTools.Arc)drawitems[0];
foreach (LinePoints originalLp in m_originalLines.Values)
{
}
bool modified = false;
}
return eDrawObjectMouseDown.Done;
}
void AddLine(UnitPoint point, DrawTools.Line line)
{
if (m_originalLines.ContainsKey(line) == false)
{
line.Highlighted = true;
LinePoints lp = new LinePoints();
lp.SetLine(line);
lp.MousePoint = point;
m_originalLines.Add(line, lp);
}
}
public eDrawObjectMouseDownEnum OnMouseDown(ICanvas canvas, UnitPoint point, ISnapPoint snappoint)
{
try
{
List <IDrawObject> drawitems = canvas.DataModel.GetHitObjects(canvas, point);
List <DrawTools.LineTool> lines = GetLines(drawitems);
if (m_originalLines.Count == 0 || Control.ModifierKeys == Keys.Shift)
{
foreach (DrawTools.LineTool line in lines)
{
AddLine(point, line);
}
SetSelectHint();
return(eDrawObjectMouseDownEnum.Continue);
}
if (m_originalLines.Count == 0 || Control.ModifierKeys == Keys.Control)
{
foreach (DrawTools.LineTool line in lines)
{
if (m_originalLines.ContainsKey(line))
{
RemoveLine(line);
}
else
{
AddLine(point, line);
}
}
SetSelectHint();
return(eDrawObjectMouseDownEnum.Continue);
}
if (drawitems.Count == 0)
{
return(eDrawObjectMouseDownEnum.Continue);
}
if (drawitems[0] is DrawTools.LineTool)
{
DrawTools.LineTool edge = (DrawTools.LineTool)drawitems[0];
if (edge.Type == DrawTools.LineType.PointLine)
{
return(eDrawObjectMouseDownEnum.Done);
}
bool modified = false;
foreach (LinePoints originalLp in m_originalLines.Values)
{
UnitPoint intersectpoint = HitUtil.LinesIntersectPoint(edge.P1, edge.P2, originalLp.Line.P1, originalLp.Line.P2);
if (intersectpoint != UnitPoint.Empty)
{
LinePoints lp = new LinePoints();
lp.SetLine(originalLp.Line);
lp.MousePoint = originalLp.MousePoint;
m_modifiedLines.Add(lp.Line, lp);
lp.SetNewPoints(lp.Line, lp.MousePoint, intersectpoint);
modified = true;
continue;
}
if (intersectpoint == UnitPoint.Empty)
{
UnitPoint apprarentISPoint = HitUtil.FindApparentIntersectPoint(
edge.P1,
edge.P2,
originalLp.Line.P1,
originalLp.Line.P2,
false,
true);
if (apprarentISPoint == UnitPoint.Empty)
{
continue;
}
modified = true;
originalLp.Line.ExtendLineToPoint(apprarentISPoint);
LinePoints lp = new LinePoints();
lp.SetLine(originalLp.Line);
lp.MousePoint = point;
m_modifiedLines.Add(lp.Line, lp);
}
}
if (modified)
{
canvas.DataModel.AfterEditObjects(this);
}
return(eDrawObjectMouseDownEnum.Done);
}
return(eDrawObjectMouseDownEnum.Done);
}
catch (Exception ex)
{ throw ex; }
}
