/// <summary>
/// Add a key point into this polyline link.
/// </summary>
/// <param name="x">X coordinate of the key point.</param>
/// <param name="y">Y coordinate of the key point.</param>
/// <param name="rgObjs">GOM object collection.</param>
public void AddKeyPoint(float x, float y, GOM_Objects rgObjs)
{
if ( m_linkingStyle != GOM_Linking_Style.Polyline )
{
return;
}
System.Drawing.Drawing2D.Matrix matrix;
System.Drawing.PointF[] rgPts, rgAllPts;
System.Drawing.PointF startPt, endPt;
startPt = StartPointInCanvas(rgObjs);
endPt = EndPointInCanvas(rgObjs);
rgPts = new System.Drawing.PointF[2];
rgAllPts = new System.Drawing.PointF[m_keyPts.Count+2];
rgAllPts[0].X = startPt.X;
rgAllPts[0].Y = startPt.Y;
for(int i=0; i<m_keyPts.Count; i++)
{
rgAllPts[1+i].X = m_keyPts[i].x;
rgAllPts[1+i].Y = m_keyPts[i].y;
}
rgAllPts[rgAllPts.Length-1].X = endPt.X;
rgAllPts[rgAllPts.Length-1].Y = endPt.Y;
for(int i=0; i<(rgAllPts.Length-1); i++)
{
rgPts[0].X = rgAllPts[i+1].X;
rgPts[0].Y = rgAllPts[i+1].Y;
rgPts[1].X = x;
rgPts[1].Y = y;
matrix = new System.Drawing.Drawing2D.Matrix();
matrix.Translate(-rgAllPts[i].X, -rgAllPts[i].Y);
matrix.TransformPoints(rgPts);
float angle = (float)(System.Math.Atan2(rgAllPts[i+1].Y - rgAllPts[i].Y, rgAllPts[i+1].X - rgAllPts[i].X) / System.Math.PI) * 180;
matrix.Reset();
matrix.Rotate(-angle);
matrix.TransformPoints(rgPts);
if ((Math.Abs(rgPts[1].Y) < 2) && (-2 < rgPts[1].X) && (rgPts[1].X < rgPts[0].X + 2))
{
GOM_Point point = new GOM_Point();
point.x = x;
point.y = y;
m_keyPts.Insert(i, point);
return;
}
}
}
public static bool IsPointOnLink(GOM_Point pt, GOM_Link link, GOM_Objects rgObjs)
{
return link.IsPointOnLink(pt.x, pt.y, rgObjs);
}
public GOM_ResourceArrays( GOM_Points points, GOM_Drawing_Styles drawingStyles, GOM_Filling_Styles fillingStyles, GOM_Objects objects )
{
m_points = points;
m_drawingStyles = drawingStyles;
m_fillingStyles = fillingStyles;
m_objects = objects;
}
public GOM_ResourceArrays( GOM_Objects objects )
: this(null, null, null, objects)
{
}
public void DecomposeGroupObject(GOM_Objects rgObjs)
{
GOM_Interface_Graphic_Object obj;
System.Drawing.RectangleF rc;
System.Drawing.PointF ptC, ptR;
float[] rgOffsetX, rgOffsetY, rgRotation;
if (rgObjects.Count > 0)
{
rgOffsetX = new float[rgObjects.Count];
rgOffsetY = new float[rgObjects.Count];
rgRotation = new float[rgObjects.Count];
for (int i = 0; i < rgObjects.Count; i++)
{
obj = rgObjects[i];
rc = obj.BoundingBox;
ptC = obj.PointToCanvas(new System.Drawing.PointF((rc.Left + rc.Right) / 2, (rc.Top + rc.Bottom) / 2));
ptC = this.PointToCanvas(ptC);
ptR = obj.PointToCanvas(new System.Drawing.PointF((rc.Left + rc.Right) / 2, rc.Top - 30));
ptR = this.PointToCanvas(ptR);
rgOffsetX[i] = ptC.X - (rc.Left + rc.Right) / 2;
rgOffsetY[i] = ptC.Y - (rc.Top + rc.Bottom) / 2;
rgRotation[i] = (float)((System.Math.Atan2(ptR.X - ptC.X, ptC.Y - ptR.Y) / System.Math.PI) * 180);
}
for (int i = 0; i < rgObjects.Count; i++)
{
rgObjects[i].xOffset = rgOffsetX[i];
rgObjects[i].yOffset = rgOffsetY[i];
rgObjects[i].rotation = rgRotation[i];
rgObjs.Add(rgObjects[i]);
}
rgObjects.Clear();
}
}
public static GOM_Object_Group CreateGroupObject(GOM_Objects rgObjs)
{
GOM_Object_Group group = null;
System.Drawing.PointF pt;
System.Drawing.RectangleF rc;
if (rgObjs.Count > 0)
{
float minX, minY;
rc = rgObjs[0].BoundingBox;
pt = rgObjs[0].PointToCanvas(new System.Drawing.PointF(rc.Left, rc.Top));
minX = pt.X;
minY = pt.Y;
for (int i = 0; i < rgObjs.Count; i++)
{
rc = rgObjs[i].BoundingBox;
pt = rgObjs[i].PointToCanvas(new System.Drawing.PointF(rc.Left, rc.Top));
minX = System.Math.Min(minX, pt.X);
minY = System.Math.Min(minY, pt.Y);
pt = rgObjs[i].PointToCanvas(new System.Drawing.PointF(rc.Left, rc.Bottom));
minX = System.Math.Min(minX, pt.X);
minY = System.Math.Min(minY, pt.Y);
pt = rgObjs[i].PointToCanvas(new System.Drawing.PointF(rc.Right, rc.Top));
minX = System.Math.Min(minX, pt.X);
minY = System.Math.Min(minY, pt.Y);
pt = rgObjs[i].PointToCanvas(new System.Drawing.PointF(rc.Right, rc.Bottom));
minX = System.Math.Min(minX, pt.X);
minY = System.Math.Min(minY, pt.Y);
}
group = new GOM_Object_Group();
for (int i = 0; i < rgObjs.Count; i++)
{
rgObjs[i].xOffset -= minX;
rgObjs[i].yOffset -= minY;
group.rgObjects.Add(rgObjs[i]);
}
group.xOffset = minX;
group.yOffset = minY;
}
group.CalculateBoundingBox();
return group;
}
public GOM_Object_Group()
{
m_id = Guid.NewGuid().ToString("D");
m_xOffset = 0;
m_yOffset = 0;
m_rotation = 0;
m_boundingBox = new System.Drawing.RectangleF();
rgObjects = new GOM_Objects();
GOM_Constraint_Set constraintSet;
m_Top_Connector = new GOM_Point();
m_Top_Connector.id = GOM_Special_Point_Name.TOP_CONNECTOR;
m_Top_Connector.Connectable = true;
m_Bottom_Connector = new GOM_Point();
m_Bottom_Connector.id = GOM_Special_Point_Name.BOTTOM_CONNECTOR;
m_Bottom_Connector.Connectable = true;
m_Left_Connector = new GOM_Point();
m_Left_Connector.id = GOM_Special_Point_Name.LEFT_CONNECTOR;
m_Left_Connector.Connectable = true;
m_Right_Connector = new GOM_Point();
m_Right_Connector.id = GOM_Special_Point_Name.RIGHT_CONNECTOR;
m_Right_Connector.Connectable = true;
m_SE_Resize_Point = new GOM_Point();
m_SE_Resize_Point.id = GOM_Special_Point_Name.SE_RESIZING_POINT;
constraintSet = new GOM_Constraint_Set();
constraintSet.EditingMode = "default";
constraintSet.Add(new GOM_Resizing_SE_Constraint(this, m_SE_Resize_Point));
m_SE_Resize_Point.Constraints.Add(constraintSet);
m_NW_Resize_Point = new GOM_Point();
m_NW_Resize_Point.id = GOM_Special_Point_Name.NW_RESIZING_POINT;
constraintSet = new GOM_Constraint_Set();
constraintSet.EditingMode = "default";
constraintSet.Add(new GOM_Resizing_NW_Constraint(this, m_NW_Resize_Point));
m_NW_Resize_Point.Constraints.Add(constraintSet);
m_SW_Resize_Point = new GOM_Point();
m_SW_Resize_Point.id = GOM_Special_Point_Name.SW_RESIZING_POINT;
constraintSet = new GOM_Constraint_Set();
constraintSet.EditingMode = "default";
constraintSet.Add(new GOM_Resizing_SW_Constraint(this, m_SW_Resize_Point));
m_SW_Resize_Point.Constraints.Add(constraintSet);
m_NE_Resize_Point = new GOM_Point();
m_NE_Resize_Point.id = GOM_Special_Point_Name.NE_RESIZING_POINT;
constraintSet = new GOM_Constraint_Set();
constraintSet.EditingMode = "default";
constraintSet.Add(new GOM_Resizing_NE_Constraint(this, m_NE_Resize_Point));
m_NE_Resize_Point.Constraints.Add(constraintSet);
m_Rotation_Point = new GOM_Point();
m_Rotation_Point.id = GOM_Special_Point_Name.ROTATION_POINT;
constraintSet = new GOM_Constraint_Set();
constraintSet.EditingMode = "default";
constraintSet.Add(new GOM_Rotation_Constraint(this, m_Rotation_Point));
m_Rotation_Point.Constraints.Add(constraintSet);
}
private bool CalculatePointLocation(ref System.Drawing.PointF pt, GOM_Interface_Graphic_Object obj, GOM_Objects rgObjs)
{
bool bTranslated = false;
for (int i = 0; i < rgObjs.Count; i++)
{
if (rgObjs[i].Equals(obj))
{
bTranslated = true;
}
else if (rgObjs[i] is GOM_Object_Group)
{
bTranslated |= CalculatePointLocation(ref pt, obj, ((GOM_Object_Group)rgObjs[i]).rgObjects);
}
if (bTranslated)
{
pt = rgObjs[i].PointToCanvas(pt);
break;
}
}
return bTranslated;
}
/// <summary>
/// Gets the start point in canvas coordinate.
/// </summary>
/// <param name="rgObjs">GOM object collection.</param>
/// <returns>Start point in canvas coordinate.</returns>
public System.Drawing.PointF StartPointInCanvas(GOM_Objects rgObjs)
{
System.Drawing.PointF pt = new System.Drawing.PointF(m_startPt.x, m_startPt.y);
if (!CalculatePointLocation(ref pt, this.m_startObj, rgObjs))
{
pt.X = -1;
pt.Y = -1;
}
return pt;
}
/// <summary>
/// Indicates whether a given point is on this link.
/// </summary>
/// <param name="x">X coordinate of the given point.</param>
/// <param name="y">Y coordinate of the given point.</param>
/// <param name="rgObjs">GOM object collection.</param>
/// <returns>Whether a given point is on this link.</returns>
public bool IsPointOnLink(float x, float y, GOM_Objects rgObjs)
{
switch (m_linkingStyle)
{
case GOM_Linking_Style.Line:
{
System.Drawing.Drawing2D.Matrix matrix;
System.Drawing.PointF[] rgPts;
System.Drawing.PointF startPt, endPt;
startPt = StartPointInCanvas(rgObjs);
endPt = EndPointInCanvas(rgObjs);
rgPts = new System.Drawing.PointF[2];
rgPts[0].X = endPt.X;
rgPts[0].Y = endPt.Y;
rgPts[1].X = x;
rgPts[1].Y = y;
matrix = new System.Drawing.Drawing2D.Matrix();
matrix.Translate(-startPt.X, -startPt.Y);
matrix.TransformPoints(rgPts);
float angle = (float)(System.Math.Atan2(endPt.Y - startPt.Y, endPt.X - startPt.X) / System.Math.PI) * 180;
matrix.Reset();
matrix.Rotate(-angle);
matrix.TransformPoints(rgPts);
if ((Math.Abs(rgPts[1].Y) < 2) && (-2 < rgPts[1].X) && (rgPts[1].X < rgPts[0].X + 2))
{
return true;
}
break;
}
case GOM_Linking_Style.Polyline:
{
System.Drawing.Drawing2D.Matrix matrix;
System.Drawing.PointF[] rgPts, rgAllPts;
System.Drawing.PointF startPt, endPt;
startPt = StartPointInCanvas(rgObjs);
endPt = EndPointInCanvas(rgObjs);
rgPts = new System.Drawing.PointF[2];
rgAllPts = new System.Drawing.PointF[m_keyPts.Count+2];
rgAllPts[0].X = startPt.X;
rgAllPts[0].Y = startPt.Y;
for(int i=0; i<m_keyPts.Count; i++)
{
rgAllPts[1+i].X = m_keyPts[i].x;
rgAllPts[1+i].Y = m_keyPts[i].y;
}
rgAllPts[rgAllPts.Length-1].X = endPt.X;
rgAllPts[rgAllPts.Length-1].Y = endPt.Y;
for(int i=0; i<(rgAllPts.Length-1); i++)
{
rgPts[0].X = rgAllPts[i+1].X;
rgPts[0].Y = rgAllPts[i+1].Y;
rgPts[1].X = x;
rgPts[1].Y = y;
matrix = new System.Drawing.Drawing2D.Matrix();
matrix.Translate(-rgAllPts[i].X, -rgAllPts[i].Y);
matrix.TransformPoints(rgPts);
float angle = (float)(System.Math.Atan2(rgAllPts[i+1].Y - rgAllPts[i].Y, rgAllPts[i+1].X - rgAllPts[i].X) / System.Math.PI) * 180;
matrix.Reset();
matrix.Rotate(-angle);
matrix.TransformPoints(rgPts);
if ((Math.Abs(rgPts[1].Y) < 2) && (-2 < rgPts[1].X) && (rgPts[1].X < rgPts[0].X + 2))
{
return true;
}
}
break;
}
case GOM_Linking_Style.Curve:
{
break;
}
default:
System.Diagnostics.Debug.Assert(false, "Unknown link style.");
break;
}
return false;
}
/// <summary>
/// Draw selected link.
/// </summary>
/// <param name="canvas">Canvas which link is drawn on.</param>
/// <param name="rgObjs">GOM object collections.</param>
public void DrawSelected(System.Drawing.Graphics canvas, GOM_Objects rgObjs)
{
System.Drawing.Pen pen = new System.Drawing.Pen(System.Drawing.Color.BlueViolet, 2);
pen.DashStyle = m_drawingStyle.drawingStyle.DashStyle;
switch (m_linkingStyle)
{
case GOM_Linking_Style.Line:
{
System.Drawing.PointF pt1 = StartPointInCanvas(rgObjs);
System.Drawing.PointF pt2 = EndPointInCanvas(rgObjs);
canvas.DrawLine(pen, pt1, pt2);
DrawTerminal(canvas, m_startStyle, pt1, pt2);
DrawTerminal(canvas, m_endStyle, pt2, pt1);
break;
}
case GOM_Linking_Style.Polyline:
{
System.Drawing.PointF pt1 = StartPointInCanvas(rgObjs);
System.Drawing.PointF pt2 = EndPointInCanvas(rgObjs);
if ( m_keyPts.Count > 0 )
{
System.Drawing.PointF firstKeyPt = new System.Drawing.PointF(m_keyPts[0].x, m_keyPts[0].y);
System.Drawing.PointF lastKeyPt = new System.Drawing.PointF(m_keyPts[m_keyPts.Count-1].x, m_keyPts[m_keyPts.Count-1].y);
canvas.DrawLine(pen, pt1, firstKeyPt);
if ( m_keyPts.Count >= 2 )
{
for( int i=0; i<(m_keyPts.Count-1); i++ )
{
canvas.DrawLine(pen, m_keyPts[i].x, m_keyPts[i].y, m_keyPts[i+1].x, m_keyPts[i+1].y);
}
}
canvas.DrawLine(pen, lastKeyPt, pt2);
// Draw key points
for( int i=0; i<m_keyPts.Count; i++ )
{
canvas.FillEllipse(System.Drawing.Brushes.YellowGreen, m_keyPts[i].x-3, m_keyPts[i].y-3, 7, 7);
}
DrawTerminal(canvas, m_startStyle, pt1, firstKeyPt);
DrawTerminal(canvas, m_endStyle, pt2, lastKeyPt);
}
else
{
canvas.DrawLine(pen, pt1, pt2);
DrawTerminal(canvas, m_startStyle, pt1, pt2);
DrawTerminal(canvas, m_endStyle, pt2, pt1);
}
break;
}
case GOM_Linking_Style.Curve:
{
break;
}
default:
System.Diagnostics.Debug.Assert(false, "Unknown link style.");
return;
}
}
/// <summary>
/// Draw unselected link.
/// </summary>
/// <param name="canvas">Canvas which link is drawn on.</param>
/// <param name="rgObjs">GOM object collection.</param>
public void Draw(System.Drawing.Graphics canvas, GOM_Objects rgObjs)
{
switch (m_linkingStyle)
{
case GOM_Linking_Style.Line:
{
System.Drawing.PointF pt1 = StartPointInCanvas(rgObjs);
System.Drawing.PointF pt2 = EndPointInCanvas(rgObjs);
canvas.DrawLine(m_drawingStyle.drawingStyle, pt1, pt2);
DrawTerminal(canvas, m_startStyle, pt1, pt2);
DrawTerminal(canvas, m_endStyle, pt2, pt1);
break;
}
case GOM_Linking_Style.Polyline:
{
System.Drawing.PointF pt1 = StartPointInCanvas(rgObjs);
System.Drawing.PointF pt2 = EndPointInCanvas(rgObjs);
if ( m_keyPts.Count > 0 )
{
System.Drawing.PointF firstKeyPt = new System.Drawing.PointF(m_keyPts[0].x, m_keyPts[0].y);
System.Drawing.PointF lastKeyPt = new System.Drawing.PointF(m_keyPts[m_keyPts.Count-1].x, m_keyPts[m_keyPts.Count-1].y);
canvas.DrawLine(m_drawingStyle.drawingStyle, pt1, firstKeyPt);
if ( m_keyPts.Count >= 2 )
{
for( int i=0; i<(m_keyPts.Count-1); i++ )
{
canvas.DrawLine(m_drawingStyle.drawingStyle, m_keyPts[i].x, m_keyPts[i].y, m_keyPts[i+1].x, m_keyPts[i+1].y);
}
}
canvas.DrawLine(m_drawingStyle.drawingStyle, lastKeyPt, pt2);
DrawTerminal(canvas, m_startStyle, pt1, firstKeyPt);
DrawTerminal(canvas, m_endStyle, pt2, lastKeyPt);
}
else
{
canvas.DrawLine(m_drawingStyle.drawingStyle, pt1, pt2);
DrawTerminal(canvas, m_startStyle, pt1, pt2);
DrawTerminal(canvas, m_endStyle, pt2, pt1);
}
break;
}
case GOM_Linking_Style.Curve:
{
break;
}
default:
System.Diagnostics.Debug.Assert(false, "Unknown link style.");
return;
}
}