//マウス移動時、終端のアンカーポイント移動とその他の制御点の位置調整
private void MyCanvas_MouseMove(object sender, MouseEventArgs e)
{
PointCollection ps = MySegment.Points;
Point mouseP = e.GetPosition(MyCanvas);//マウスカーソル位置
if (ps.Count > 5)
{
//終端のアンカーの座標は今のカーソル座標
ps[ps.Count - 1] = mouseP;
Point preAP = ps[ps.Count - 4]; //一個前のアンカーポイント
Point prepreAP; //二個前のアンカーポイント
if (ps.Count < 7)
{
var pg = (PathGeometry)MyPath.Data;
var pathFigureCollection = pg.Figures;
prepreAP = pathFigureCollection[0].StartPoint;
}
else
{
prepreAP = ps[ps.Count - 7];
}
//終端アンカーと二個前のアンカーとの距離の1 / 4
double xDiff = (mouseP.X - prepreAP.X) / 4.0;
double yDiff = (mouseP.Y - prepreAP.Y) / 4.0;
//一個前のアンカーポイントの制御点座標
ps[ps.Count - 5] = new Point(preAP.X - xDiff, preAP.Y - yDiff); //終端から遠いほう
ps[ps.Count - 3] = new Point(preAP.X + xDiff, preAP.Y + yDiff); //終端から近いほう
//矢印の回転角度
//角度はマウスカーソル座標と一個前のアンカーの手前側の制御点との直線の角度
double angle = Math.Atan2(mouseP.Y - ps[ps.Count - 3].Y, mouseP.X - ps[ps.Count - 3].X);
angle = angle / Math.PI * 180; //ラジアンから度数へ変換
angle += 90; //調整、元の矢印は上向きだけど0度は右向きだから
//矢印回転
ArrowHead.RenderTransform = new RotateTransform(angle);
MyLabel.Content = "Angle = " + angle.ToString();
//矢印の位置、先端をマウスカーソルに合わせる
mouseP.Offset(-OffsetFinePoint.X, -OffsetFinePoint.Y);
Canvas.SetLeft(ArrowHead, mouseP.X);
Canvas.SetTop(ArrowHead, mouseP.Y);
//終端座標決定
//矢印の後ろ(接続座標)をベジェ曲線の終端にする
//接続座標はTransformToVisualで計算
GeneralTransform gt = ArrowHead.TransformToVisual(MyCanvas);
Point lastAnc = gt.Transform(ContactPoint);
ps[ps.Count - 1] = lastAnc;
//終端(アンカー)と一個前のアンカーの距離の1/4
xDiff = (lastAnc.X - ps[ps.Count - 3].X) / 4.0;
yDiff = (lastAnc.Y - ps[ps.Count - 3].Y) / 4.0;
//終端の制御点座標
Point lastControlP = new Point(lastAnc.X - xDiff, lastAnc.Y - yDiff);
ps[ps.Count - 2] = lastControlP;
}
else if (ps.Count > 0)
{
//終端はカーソル位置
ps[ps.Count - 1] = e.GetPosition(MyCanvas);//カーソル位置に
//矢印の位置調整
mouseP.Offset(-OffsetFinePoint.X, -OffsetFinePoint.Y);
Canvas.SetLeft(ArrowHead, mouseP.X);
Canvas.SetTop(ArrowHead, mouseP.Y);
}
}
public virtual void loadFrom(BinaryReader reader, PersistContext ctx)
{
backColor = ctx.loadColor();
behavior = (BehaviorType)reader.ReadInt32();
arrowHead = (ArrowHead)reader.ReadInt32();
arrowBase = (ArrowHead)reader.ReadInt32();
arrowInterm = (ArrowHead)reader.ReadInt32();
arrowHeadSize = (float)reader.ReadDouble();
arrowBaseSize = (float)reader.ReadDouble();
arrowIntermSize = (float)reader.ReadDouble();
shadowsStyle = (ShadowsStyle)reader.ReadInt32();
boxFillColor = ctx.loadColor();
arrowFillColor = ctx.loadColor();
boxFrameColor = ctx.loadColor();
arrowColor = ctx.loadColor();
alignToGrid = reader.ReadBoolean();
showGrid = reader.ReadBoolean();
gridColor = ctx.loadColor();
gridSize = (float)reader.ReadDouble();
boxStyle = (BoxStyle)reader.ReadInt32();
shadowColor = ctx.loadColor();
imagePos = (ImageAlign)reader.ReadInt32();
textColor = ctx.loadColor();
activeMnpColor = ctx.loadColor();
selMnpColor = ctx.loadColor();
disabledMnpColor = ctx.loadColor();
arrowStyle = (ArrowStyle)reader.ReadInt32();
arrowSegments = reader.ReadInt16();
scrollX = (float)reader.ReadDouble();
scrollY = (float)reader.ReadDouble();
// zoomFactor was a short, now it is a float
if (ctx.FileVersion < 19)
zoomFactor = reader.ReadInt16();
else
zoomFactor = reader.ReadSingle();
penDashStyle = (DashStyle)reader.ReadInt32();
penWidth = (float)reader.ReadDouble();
int c = reader.ReadInt32();
defPolyShape = reader.ReadBytes(c);
docExtents = ctx.loadRectF();
shadowOffsetX = (float)reader.ReadDouble();
shadowOffsetY = (float)reader.ReadDouble();
tableFillColor = ctx.loadColor();
tableFrameColor = ctx.loadColor();
tableRowsCount = reader.ReadInt32();
tableColumnsCount = reader.ReadInt32();
tableColWidth = (float)reader.ReadDouble();
tableRowHeight = (float)reader.ReadDouble();
tableCaptionHeight = (float)reader.ReadDouble();
tableCaption = reader.ReadString();
arrowCascadeOrientation = (Orientation)reader.ReadInt32();
tableCellBorders = (CellFrameStyle)reader.ReadInt32();
boxIncmAnchor = (ArrowAnchor)reader.ReadInt32();
boxOutgAnchor = (ArrowAnchor)reader.ReadInt32();
boxesExpandable = reader.ReadBoolean();
tablesScrollable = reader.ReadBoolean();
}
/// <summary>
/// Returns Visio VDX arrow type derived from FlowChart.NET EArrowHead enum
/// </summary>
/// <param name="eaType">EArrowHead enum value</param>
/// <returns>String Visio arrow type</returns>
private string ArrowType2String(ArrowHead eaType)
{
string sTemp = "0";
try
{
switch ( eaType)
{
#if _POST_FIX_3
case ArrowHead.Arrow:
sTemp = "1";
break;
case ArrowHead.BowArrow:
sTemp = "6";
break;
case ArrowHead.PointerArrow:
sTemp = "6";
break;
case ArrowHead.DoubleArrow:
sTemp = "39";
break;
case ArrowHead.Pentagon:
sTemp = "4";
break;
case ArrowHead.Reversed:
sTemp = "27";
break;
case ArrowHead.RevWithLine:
sTemp = "28";
break;
case ArrowHead.RevWithCirc:
sTemp = "29";
break;
case ArrowHead.RevTriangle:
sTemp = "27";
break;
case ArrowHead.Circle:
sTemp="42";
break;
case ArrowHead.BackSlash:
sTemp = "9";
break;
case ArrowHead.Slash:
sTemp = "23";
break;
case ArrowHead.Quill:
sTemp = "2";
break;
#else
case ArrowHead.BackSlash:
sTemp = "23";
break;
case ArrowHead.ahCircle:
sTemp="20";
break;
case ArrowHead.hDoubleArrow:
sTemp = "43";
break;
case ArrowHead.Slash:
sTemp = "9";
break;
#endif
case ArrowHead.None:
sTemp = "0";
break;
case ArrowHead.Triangle:
sTemp="2";
break;
case ArrowHead.Tetragon:
sTemp = "11";
break;
case ArrowHead.Rhombus:
sTemp = "22";
break;
default:
sTemp = "0";
break;
}
}
catch (Exception ex)
{
Trace.WriteLine(String.Format("{0} error {1}\n","ArrowType2String",ex.Message));
sTemp = "0";
}
return sTemp;
}
