/// Image's dimensions used for drawing. X = left, Y = bottom, Z = right, W = top.
private Vector4 GetDrawingDimensions(bool shouldPreserveAspect)
{
var padding = activeSprite == null ? Vector4.zero : SpriteUtility.GetPadding(activeSprite);
var size = activeSprite == null ? Vector2.zero : new Vector2(activeSprite.rect.width, activeSprite.rect.height);
Rect r = GetPixelAdjustedRect();
// Debug.Log(string.Format("r:{2}, size:{0}, padding:{1}", size, padding, r));
int spriteW = Mathf.RoundToInt(size.x);
int spriteH = Mathf.RoundToInt(size.y);
var v = new Vector4(
padding.x / spriteW,
padding.y / spriteH,
(spriteW - padding.z) / spriteW,
(spriteH - padding.w) / spriteH);
if (shouldPreserveAspect && size.sqrMagnitude > 0.0f)
{
var spriteRatio = size.x / size.y;
var rectRatio = r.width / r.height;
if (spriteRatio > rectRatio)
{
var oldHeight = r.height;
r.height = r.width * (1.0f / spriteRatio);
r.y += (oldHeight - r.height) * rectTransform.pivot.y;
}
else
{
var oldWidth = r.width;
r.width = r.height * spriteRatio;
r.x += (oldWidth - r.width) * rectTransform.pivot.x;
}
}
v = new Vector4(
r.x + r.width * v.x,
r.y + r.height * v.y,
r.x + r.width * v.z,
r.y + r.height * v.w
);
return(v);
}
private void GenerateSlicedSprite(VertexHelper toFill)
{
if (!hasBorder)
{
GenerateSimpleSprite(toFill, false);
return;
}
Vector4 outer, inner, padding, border;
if (activeSprite != null)
{
outer = SpriteUtility.GetOuterUV(activeSprite);
inner = SpriteUtility.GetInnerUV(activeSprite);
padding = SpriteUtility.GetPadding(activeSprite);
border = activeSprite.border;
}
else
{
outer = Vector4.zero;
inner = Vector4.zero;
padding = Vector4.zero;
border = Vector4.zero;
}
Rect rect = GetPixelAdjustedRect();
Vector4 adjustedBorders = GetAdjustedBorders(border / pixelsPerUnit, rect);
padding = padding / pixelsPerUnit;
s_VertScratch[0] = new Vector2(padding.x, padding.y);
s_VertScratch[3] = new Vector2(rect.width - padding.z, rect.height - padding.w);
s_VertScratch[1].x = adjustedBorders.x;
s_VertScratch[1].y = adjustedBorders.y;
s_VertScratch[2].x = rect.width - adjustedBorders.z;
s_VertScratch[2].y = rect.height - adjustedBorders.w;
for (int i = 0; i < 4; ++i)
{
s_VertScratch[i].x += rect.x;
s_VertScratch[i].y += rect.y;
}
s_UVScratch[0] = new Vector2(outer.x, outer.y);
s_UVScratch[1] = new Vector2(inner.x, inner.y);
s_UVScratch[2] = new Vector2(inner.z, inner.w);
s_UVScratch[3] = new Vector2(outer.z, outer.w);
toFill.Clear();
for (int x = 0; x < 3; ++x)
{
int x2 = x + 1;
for (int y = 0; y < 3; ++y)
{
if (!m_FillCenter && x == 1 && y == 1)
{
continue;
}
int y2 = y + 1;
AddQuad(toFill,
new Vector2(s_VertScratch[x].x, s_VertScratch[y].y),
new Vector2(s_VertScratch[x2].x, s_VertScratch[y2].y),
color,
new Vector2(s_UVScratch[x].x, s_UVScratch[y].y),
new Vector2(s_UVScratch[x2].x, s_UVScratch[y2].y));
}
}
}
