public void RegisterIcon(string name, string imageUrl, bool blackBg = false)
{
var si = new ScaledImage(new HTMLImageElement()
{
Src = imageUrl
}, blackBg);
itemImages.Add(name, si);
}
private void DrawImage(ScaledImage img, bool blackWhite)
{
if (img == null)
{
return;
}
ctx.Save();
img.TargetSize = (int)Math.Round(boxScale * iconSize * 2);
ctx.DrawImage(img.ScaledImg, 0, 0, 1.0, 1.0);
ctx.Restore();
}
private void DrawButton(ScaledImage img, string borderColor, double alpha = 1, bool bw = false, bool whitebghide = false)
{
var drawBlack = img != null && img.BlackBackground;
if (drawBlack)
{
DrawButtonFill("black");
}
else
{
if (!whitebghide)
{
ctx.Save();
ctx.GlobalAlpha = (float)0.5;
DrawButtonFill("white");
ctx.GlobalAlpha = (float)1;
ctx.Restore();
}
}
ctx.Save();
ctx.Translate(iconMargin, iconMargin);
ctx.Scale(iconSize, iconSize);
ctx.GlobalAlpha = (float)alpha;
DrawImage(img, bw);
ctx.Restore();
var bc = borderColor;
if (bw && img != null)
{
ctx.Save();
ctx.GlobalAlpha = 1;
ctx.GlobalCompositeOperation = CanvasTypes.CanvasCompositeOperationType.Saturation;
ctx.FillStyle = "white";
ctx.RoundedRectPath(0, 0, 1, 1, 0.2);
ctx.Fill();
//ctx.FillRect(0, 0, 1, 1);
ctx.Restore();
}
DrawButtonBorder(bc);
}