internal static Bitmap MakeBitmapFromPicture (Picture pic, int width, int height)
{
using (var bmp = Bitmap.CreateBitmap (width, height, Bitmap.Config.Argb8888)) {
using (var c = new Canvas (bmp)) {
var dst = new RectF (0, 0, width, height);
c.DrawPicture (pic, dst);
}
// Returns an immutable copy
return Bitmap.CreateBitmap (bmp);
}
}
public static Bitmap GetBitmapFromSvgString(string svgString, int width, int height)
{
var svg = SVGParser.ParseSVGFromString (svgString);
var bmp = Bitmap.CreateBitmap (width, height, Bitmap.Config.Argb8888);
using (var c = new Canvas (bmp)) {
var dst = new RectF (0, 0, width, height);
c.DrawPicture (svg.Picture, dst);
}
// Returns an immutable copy
return Bitmap.CreateBitmap (bmp);
}
public static Bitmap GetBitmapFromSvgRes(Android.Content.Res.Resources resources, int resID,
int width, int height)
{
var svg = SVGParser.ParseSVGFromResource (resources,
resID);
var bmp = Bitmap.CreateBitmap (width, height, Bitmap.Config.Argb8888);
using (var c = new Canvas (bmp)) {
var dst = new RectF (0, 0, width, height);
c.DrawPicture (svg.Picture, dst);
}
// Returns an immutable copy
return Bitmap.CreateBitmap (bmp);
}
public Bitmap GetPin(float ratio, int number, int width, int height, float alpha = 1)
{
int key = number + ((int)(ratio * 10000)) << 6;
Bitmap bmp;
if (pinCache.TryGetValue (key, out bmp))
return bmp;
var svg = SVGParser.ParseSVGFromResource (context.Resources,
Resource.Raw.pin,
SvgColorMapperFactory.FromFunc (c => ColorReplacer (c, ratio, alpha)));
bmp = Bitmap.CreateBitmap (width, height, Bitmap.Config.Argb8888);
using (var c = new Canvas (bmp)) {
var dst = new RectF (0, 0, width, height);
c.DrawPicture (svg.Picture, dst);
c.DrawText (number.ToString (), width / 2 - 1, 16.ToPixels (), textPaint);
}
pinCache [key] = bmp;
return bmp;
}
protected override void DispatchDraw(Canvas canvas)
{
base.DispatchDraw (mPicture.BeginRecording (Width, Height));
mPicture.EndRecording ();
int x = Width / 2;
int y = Height / 2;
if (false)
canvas.DrawPicture (mPicture);
else {
DrawPict (canvas, 0, 0, x, y, 1, 1);
DrawPict (canvas, x, 0, x, y, -1, 1);
DrawPict (canvas, 0, y, x, y, 1, -1);
DrawPict (canvas, x, y, x, y, -1, -1);
}
}
private void DrawPict(Canvas canvas, int x, int y, int w, int h, float sx, float sy)
{
canvas.Save ();
canvas.Translate (x, y);
canvas.ClipRect (0, 0, w, h);
canvas.Scale (0.5f, 0.5f);
canvas.Scale (sx, sy, w, h);
canvas.DrawPicture (mPicture);
canvas.Restore ();
}
