public static int GetPressIndex(TextInfo info, EventCallBack callBack, UserAction action, ref int dock)
{
dock = 0;
if (info == null)
{
return(0);
}
if (info.text == "" | info.text == null)
{
return(0);
}
IList <UILineInfo> lines = info.lines;
if (lines == null)
{
return(0);
}
IList <UIVertex> verts = info.vertex;
float lx = verts[0].position.x;
float ty = verts[0].position.y;
float dy = verts[verts.Count - 1].position.y;
var pos = callBack.GlobalPosition;
var scale = callBack.GlobalScale;
float mx = action.CanPosition.x - pos.x;
mx *= scale.x;
float my = action.CanPosition.y - pos.y;
my *= scale.y;
int r = 0;//行
if (my < ty)
{
if (my < dy)
{
r = lines.Count - 1;
}
else
{
for (int i = lines.Count - 1; i >= 0; i--)
{
if (my < lines[i].topY)
{
r = i;
break;
}
}
}
}
if (mx > lx)
{
int s = lines[r].startCharIdx;
int index = s * 4;
int end = verts.Count - index;
float ox = verts[index].position.x;
for (int i = 0; i < end; i += 4)
{
float tx = verts[index].position.x;
if (tx <ox | tx> mx)
{
index -= 4;
goto lable;
}
ox = tx;
index += 4;
}
return(info.visibleCount);
lable :;
float ax = verts[index].position.x;
float bx = verts[index + 2].position.x;
float cx = ax + (bx - ax) * 0.5f;
index /= 4;
if (mx > cx)//靠右
{
index++;
dock = 1;
}
return(index);
}
else
{
return(lines[r].startCharIdx);
}
}
static void GetChoiceArea(TextInfo info)
{
if (info == null)
{
return;
}
IList <UILineInfo> lines = info.lines;
if (lines == null)
{
return;
}
IList <UIVertex> vertex = info.vertex;
if (vertex == null)
{
return;
}
float top = 0;
float down = 0;
int end = info.characterCount;
int max = lines.Count;
int se = max - 1;
var vert = info.selectVertex;
var color = info.areaColor;
var tri = info.selectTri;
int s = info.startSelect;
int e = info.endSelect;
if (e < s)
{
int t = s;
s = e;
e = t;
}
for (int i = 0; i < lines.Count; i++)
{
int start = lines[i].startCharIdx;
if (i < se)
{
end = lines[i + 1].startCharIdx - 1;
}
else
{
end = info.visibleCount;
}
int state = CommonArea(s, e, ref start, ref end);
if (state == 2)
{
break;
}
else
if (state == 1)
{
top = lines[i].topY;
down = top - lines[i].height;
bool warp = end < e ? true : false;
var w = GetLineRect(vertex, start, end, warp);
int st = vert.Count;
var v = new UIVertex();
v.position.x = w.x;
v.position.y = down;
v.color = color;
vert.Add(v);
v.position.x = w.x;
v.position.y = top;
v.color = color;
vert.Add(v);
v.position.x = w.y;
v.position.y = down;
v.color = color;
vert.Add(v);
v.position.x = w.y;
v.position.y = top;
v.color = color;
vert.Add(v);
tri.Add(st);
tri.Add(st + 1);
tri.Add(st + 2);
tri.Add(st + 2);
tri.Add(st + 1);
tri.Add(st + 3);
}
}
}
static void ChangePoint(TextInfo info)
{
int index = info.startSelect;
if (index < 0)
{
index = 0;
}
var text = info.buffer.FilterString;
if (text == null | text == "")
{
index = 0;
}
else if (index > text.Length)
{
index = text.Length;
}
Vector3 Point = Vector3.zero;
var o = GetIndexPoint(info, index, ref Point);
var vert = info.selectVertex;
var tri = info.selectTri;
vert.Clear();
tri.Clear();
if (o)
{
float left = Point.x - 0.5f;
float right = Point.x + 0.5f;
float h = Point.z;
h *= 0.4f;
float top = Point.y + h;
float down = Point.y - h;
var v = new UIVertex();
v.position.x = left;
v.position.y = down;
v.color = info.caretColor;
vert.Add(v);
v.position.x = left;
v.position.y = top;
v.color = info.caretColor;
vert.Add(v);
v.position.x = right;
v.position.y = down;
v.color = info.caretColor;
vert.Add(v);
v.position.x = right;
v.position.y = top;
v.color = info.caretColor;
vert.Add(v);
}
else
{
var v = new UIVertex();
vert.Add(v);
vert.Add(v);
vert.Add(v);
vert.Add(v);
}
tri.Add(0);
tri.Add(1);
tri.Add(2);
tri.Add(2);
tri.Add(1);
tri.Add(3);
}
