public ButtonInfo(ISwfDefinitionTag tag, ISystemServices services, FlashDocument document)
{
if (tag is DefineButtonTag)
tag = new DefineButton2Tag(tag as DefineButtonTag);
var b = tag as DefineButton2Tag;
CxForm = null;
TrackAsMenu = b.TrackAsMenu;
Actions = b.Actions;
ID = tag.CharacterID;
Parts = b.Parts
.Where(r => r.Up || r.Down || r.Over)
.OrderBy(r => r.CharacterDepth)
.Select(r => new ButtonPart(r, document))
.Where(p => p.Character != null)
.ToArray();
GenerateHits(b, services, document);
}
private void GenerateHits(DefineButton2Tag tag, ISystemServices services, FlashDocument document)
{
var hit = tag.Parts.Where(r => r.HitTest).Select(r => new ButtonPart(r, document));
foreach (var h in hit)
{
if (h.Character == null) continue;
if (!h.Character.Bounds.HasValue) continue;
_hitBounds = Rectangle.Union(_hitBounds, TransformBounds(h.Character.Bounds.Value, h.Matrix));
}
if (_hitBounds == Rectangle.Empty)
return;
// Make Hit (using Color surface since Alpha8 is not supported everywhere)
using (var surface = services.VectorDevice.CreateSurface(HitTestSize, HitTestSize, SurfaceFormat.Color))
{
var state = services.VectorDevice.CreateState();
state.SetAntialiasing(VGAntialiasing.None);
state.NonScalingStroke = true;
state.FillRule = VGFillRule.EvenOdd;
state.ColorTransformationEnabled = true;
state.SetProjection(_hitBounds.Width, _hitBounds.Height);
state.PathToSurface.Push(VGMatrix.Translate(-_hitBounds.Left, -_hitBounds.Top));
using (var context = services.VectorDevice.BeginRendering(surface, state, new DisplayState(), true))
{
foreach (var h in hit.OrderBy(c => c.Depth))
{
if (!(h.Character is Movie.IDrawable)) continue;
if (!h.Character.Bounds.HasValue) continue;
state.PathToSurface.PushCombineLeft(h.Matrix);
(h.Character as Movie.IDrawable).Draw(context);
state.PathToSurface.Pop();
}
}
Func<Color, byte> isCovered = (c) => (byte)((c.A != 0) ? 1 : 0);
Color[] data = new Color[surface.Width * surface.Height];
surface.Target.GetData(data);
for (int y = 0; y < surface.Height; y++)
{
for (int x = 0; x < surface.Width; )
{
var b = isCovered(data[x++]);
b <<= 1;
b |= isCovered(data[x++]);
b <<= 1;
b |= isCovered(data[x++]);
b <<= 1;
b |= isCovered(data[x++]);
b <<= 1;
b |= isCovered(data[x++]);
b <<= 1;
b |= isCovered(data[x++]);
b <<= 1;
b |= isCovered(data[x++]);
b <<= 1;
b |= isCovered(data[x++]);
_hitTestBitmap[(x / 8) - 1, y] = b;
}
}
}
}
