/// <summary>
///
/// </summary>
/// <param name="x"></param>
/// <param name="y"></param>
internal bool ValueChange(float x, float y)
{
if (CurrentIndex.IsValid())
{
var m_path = Paths[CurrentIndex.BlockIndex];
var item = m_path[CurrentIndex.ItemIndex];
item.ValueChange(CurrentIndex.PartIndex, x, y);
if (item.IsC() && CurrentIndex.PartIndex == 2)
{
int nextindex = CurrentIndex.ItemIndex + 1;
if (nextindex >= m_path.Count)
{
nextindex = 0;
}
SvgPathItem next = m_path[nextindex];
if (next.IsZ())
{
next = m_path[0];
if (next.IsM())
{
next.ValueChange(0, x, y);
nextindex = 1;
next = m_path[nextindex];
}
}
if (next.IsC())
{
next.ValueChange(0, x, y);
}
}
return(true);
}
return(false);
}
internal static void SetPreviusPoint(List <SvgPathItem> path, int index, Vector2 p1)
{
SvgPathItem pre = null;
Vector2? pm = null;
index--;
if (index < 0)
{
index = path.Count - 1;
}
pre = path[index];
if (pre.IsM())
{
pm = pre.GetPoint();
pre.SetPoint(p1);
}
if (pre.IsZ())
{
index--;
pre = path[index];
}
if (pm == null)
{
pre.SetPoint(p1);
}
else
{
var p = pre.GetPoint();
if (p == pm)
{
pre.SetPoint(p1);
}
}
}
/// <summary>
/// item の線対称の値をセット
/// </summary>
/// <param name="item"></param>
/// <param name="partIndex"></param>
/// <param name="start"></param>
/// <param name="end"></param>
internal void ApplyOtherValue(SvgPathItem item, int partIndex, Vector2 start, Vector2 end)
{
if (item.IsC() || IsC())
{
switch (Command)
{
case 'L':
case 'l':
case 'M':
case 'm':
{
if (item.IsC())
{
// 自分の次はCで無いとつじつまが合わない
var next = this.Next;
if (next == null || !next.IsC())
{
return;
}
if (partIndex == 2)
{
points[0] = CalcSymmetricPoint(item.GetPoint(partIndex), start, end);
}
if (partIndex == 2 || partIndex == 1)
{
var v = CalcSymmetricPoint(item.GetPoint(1), start, end);
next.SetPoint(v, 0);
}
if (partIndex == 0)
{
var v = CalcSymmetricPoint(item.GetPoint(1), start, end);
next.SetPoint(v, 1);
}
}
break;
}
case 'c':
case 'C':
// 自分が C
if (item.IsC())
{
if (partIndex == 2) //終点 この場合は全体を移動
{
{
var v = CalcSymmetricPoint(item.GetPoint(), start, end);
SetPoint(v, 2);
}
// 制御点をitemの制御点にあわせる
{
// item の終点の制御点を next の始点の制御点に
var next = this.Next;
if (next != null && next.IsC())
{
var v = CalcSymmetricPoint(item.GetPoint(1), start, end);
next.SetPoint(v, 0);
}
}
{
// item の 次の始点の制御点を this の終点の制御点に
var next = item.Next;
if (next != null && next.IsC())
{
var v = CalcSymmetricPoint(next.GetPoint(0), start, end);
SetPoint(v, 1);
}
}
}
else if (partIndex == 0)
{
// 相手側の始点制御点の変更 なので、相手側の対象点を自分の次のアイテムの終点制御点へ
var next = this.Next;
if (next != null && next.IsC())
{
var v = CalcSymmetricPoint(item.GetPoint(0), start, end);
next.SetPoint(v, 1);
}
}
}
else if (item.IsL() || item.IsM())
{
// itemの次はCで無いとつじつまが合わない
var next = item.Next;
if (next == null || !next.IsC())
{
return;
}
{
var v = CalcSymmetricPoint(item.GetPoint(), start, end);
SetPoint(v, 2);
}
{
var v = CalcSymmetricPoint(next.GetPoint(0), start, end);
SetPoint(v, 1);
}
}
break;
}
}
else if (item.IsL() || item.IsM())
{
switch (Command)
{
case 'L':
case 'l':
case 'M':
case 'm':
{
points[0] = CalcSymmetricPoint(item.GetPoint(), start, end);
}
break;
}
}
}
