internal Context(object backend, Toolkit toolkit, ContextBackendHandler handler, bool getGlobalStyles = true) : base(backend, toolkit, handler)
{
this.handler = handler;
if (getGlobalStyles)
{
styles = globalStyles;
if (styles != StyleSet.Empty)
{
handler.SetStyles(Backend, styles);
}
}
}
internal Context(object backend, Toolkit toolkit, ContextBackendHandler handler) : base(backend, toolkit, handler)
{
this.handler = handler;
}
internal void Draw(DrawingPathBackendHandler targetHandler, object ctx, VectorImageData cm)
{
int di = 0;
int ci = 0;
int ii = 0;
int ri = 0;
int oi = 0;
int imi = 0;
int ti = 0;
ContextBackendHandler handler = targetHandler as ContextBackendHandler;
DrawingPathBackendHandler pathHandler = targetHandler;
for (int n = 0; n < cm.Commands.Length; n++)
{
switch (cm.Commands [n])
{
case DrawingCommand.AppendPath:
var p = cm.Objects [oi++];
if (p is VectorImageData)
{
Draw(targetHandler, ctx, (VectorImageData)p);
}
else
{
pathHandler.AppendPath(ctx, p);
}
break;
case DrawingCommand.Arc:
pathHandler.Arc(ctx, cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.ArcNegative:
pathHandler.ArcNegative(ctx, cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.Clip:
handler.Clip(ctx);
break;
case DrawingCommand.ClipPreserve:
handler.ClipPreserve(ctx);
break;
case DrawingCommand.ClosePath:
pathHandler.ClosePath(ctx);
break;
case DrawingCommand.CurveTo:
pathHandler.CurveTo(ctx, cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.DrawImage2:
handler.DrawImage(ctx, cm.Images [imi++], cm.Rectangles [ri++], cm.Rectangles [ri++]);
break;
case DrawingCommand.DrawImage:
handler.DrawImage(ctx, cm.Images [imi++], cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.DrawTextLayout:
var lad = (TextLayoutData)cm.TextLayouts [ti++];
var la = new TextLayout(toolkit);
lad.InitLayout(la);
handler.DrawTextLayout(ctx, la, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.Fill:
handler.Fill(ctx);
break;
case DrawingCommand.FillPreserve:
handler.FillPreserve(ctx);
break;
case DrawingCommand.LineTo:
pathHandler.LineTo(ctx, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.MoveTo:
pathHandler.MoveTo(ctx, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.NewPath:
handler.NewPath(ctx);
break;
case DrawingCommand.Rectangle:
pathHandler.Rectangle(ctx, cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.RelCurveTo:
pathHandler.RelCurveTo(ctx, cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.RelLineTo:
pathHandler.RelLineTo(ctx, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.RelMoveTo:
pathHandler.RelMoveTo(ctx, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.Restore:
handler.Restore(ctx);
break;
case DrawingCommand.Rotate:
handler.Rotate(ctx, cm.Doubles [di++]);
break;
case DrawingCommand.Save:
handler.Save(ctx);
break;
case DrawingCommand.Scale:
handler.Scale(ctx, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.SetColor:
handler.SetColor(ctx, cm.Colors [ci++]);
break;
case DrawingCommand.SetGlobalAlpha:
handler.SetGlobalAlpha(ctx, cm.Doubles [di++]);
break;
case DrawingCommand.SetLineDash:
var off = cm.Doubles [di++];
var ds = new double [cm.Ints [ii++]];
for (int i = 0; i < ds.Length; i++)
{
ds [i] = cm.Doubles [di++];
}
handler.SetLineDash(ctx, off, ds);
break;
case DrawingCommand.SetLineWidth:
handler.SetLineWidth(ctx, cm.Doubles [di++]);
break;
case DrawingCommand.SetPattern:
handler.SetPattern(ctx, cm.Objects [oi++]);
break;
case DrawingCommand.Stroke:
handler.Stroke(ctx);
break;
case DrawingCommand.StrokePreserve:
handler.StrokePreserve(ctx);
break;
case DrawingCommand.Translate:
handler.Translate(ctx, cm.Doubles [di++], cm.Doubles [di++]);
break;
case DrawingCommand.SetStyles:
handler.SetStyles(ctx, (StyleSet)cm.Objects [oi++]);
break;
}
}
}
