protected void DrawBackground(Cairo.Context cr)
{
var totalRect = GetTotalBounds();
cr.SetSourceColor(BackgroundColor);
cr.Rectangle(totalRect.X, totalRect.Y, totalRect.Width, totalRect.Height);
cr.Fill();
cr.Save();
cr.Translate(XOffset, YOffset);
cr.Scale(Scale, Scale);
if (Surface != null)
{
cr.SetSource(Surface, 0, 0);
using (SurfacePattern pattern = (SurfacePattern)cr.GetSource()) {
pattern.Filter = Filter.Nearest;
}
cr.Paint();
}
else if (Image != null)
{
using (Surface source = new BitmapSurface(Image)) {
cr.SetSource(source, 0, 0);
using (SurfacePattern pattern = (SurfacePattern)cr.GetSource()) {
pattern.Filter = Filter.Nearest;
}
cr.Paint();
}
}
else
{
Cairo.Rectangle extents = cr.ClipExtents();
for (int i = 0; i < Width * Height; i++)
{
int tileX = i % Width;
int tileY = i / Width;
Cairo.Rectangle rect = GetTileRectWithPadding(tileX, tileY, scale: false, offset: false);
if (!CairoHelper.RectsOverlap(extents, rect))
{
continue;
}
cr.Save();
cr.Translate(rect.X + TilePaddingX, rect.Y + TilePaddingY);
cr.Rectangle(0, 0, TileWidth, TileHeight);
cr.Clip();
TileDrawer(i, cr);
cr.Restore();
}
}
cr.Restore(); // Undo scale, offset
}
public override void RealRenderCairo(Cairo.Context context)
{
//if (Camera.IsRendererOutOfScreen (this))
// return;
context.MoveTo(Camera.WorldToScreenPosition(gameObject.transform.LocalToWorldPoint(points[len - 1])).ToPointD());
for (int i = 0; i < len; i++)
{
context.LineTo(Camera.WorldToScreenPosition(gameObject.transform.LocalToWorldPoint(points [i])).ToPointD());
}
context.ClosePath();
if (surf == null)
{
context.SetSourceRGBA(ColorR, ColorG, ColorB, ColorA);
context.Fill();
}
else
{
int w = surf.Width;
int h = surf.Height;
Vector2 screenMinBound = Camera.WorldToScreenPosition(gameObject.transform.LocalToWorldPoint(minBound));
Vector2 screenMaxBound = Camera.WorldToScreenPosition(gameObject.transform.LocalToWorldPoint(maxBound));
int myH = (int)(screenMinBound.y - screenMaxBound.y);
int posY = (int)screenMaxBound.y;
while (myH > 0)
{
int posX = (int)screenMinBound.x;
int myW = (int)(screenMaxBound.x - screenMinBound.x);
while (myW > 0)
{
if (Camera.IsPointOutOfScreen(new Vector2(posX, posY)) &&
Camera.IsPointOutOfScreen(new Vector2(posX, posY + h)) &&
Camera.IsPointOutOfScreen(new Vector2(posX + w, posY)) &&
Camera.IsPointOutOfScreen(new Vector2(posX + w, posY + h)))
{
myW -= w;
posX += w;
continue;
}
context.SetSourceSurface(surf, posX, posY);
context.FillPreserve();
myW -= w;
posX += w;
}
myH -= h;
posY += h;
}
context.SetSourceRGBA(ColorR, ColorG, ColorB, ColorA);
context.Stroke();
//context.NewPath();
context.GetSource().Dispose();
}
}
public override void RealRenderCairo(Cairo.Context context)
{
if (Camera.IsRendererOutOfScreen(this))
{
return;
}
Vector2 screenPos = Camera.WorldToScreenPosition(gameObject.transform.position);
float realRad = gameObject.transform.LocalToWorldLength(radius);
double screenRad = (double)realRad * Camera.instance.zoom;
context.Arc((double)screenPos.x,
(double)screenPos.y,
screenRad,
0, 2 * Math.PI);
if (surf == null)
{
if (useShadow)
{
LinearGradient g = new LinearGradient(screenPos.x - screenRad, screenPos.y + screenRad, screenPos.x + screenRad, screenPos.y - screenRad);
//g.AddColorStopRgb (0.75, new Cairo.Color (ColorR, ColorG, ColorB, ColorA));
g.AddColorStop(0, new Cairo.Color(ColorR * 0.5, ColorG * 0.5, ColorB * 0.5, ColorA * 0.5));
g.AddColorStop(1, new Cairo.Color(ColorR, ColorG, ColorB, ColorA));
context.SetSource(g);
context.Fill();
g.Dispose();
}
else
{
context.SetSourceRGBA(ColorR, ColorG, ColorB, ColorA);
context.Fill();
}
}
else
{
context.SetSourceSurface(surf, (int)(screenPos.x - screenRad), (int)(screenPos.y - screenRad));
context.Fill();
context.GetSource().Dispose();
//surf.Dispose ();
}
/*context.SetSourceRGBA (1,1,1,1);
* context.Arc ((double)screenPos.x,
* (double)screenPos.y,
* (double)realRad * Camera.instance.zoom,
* MyMath.FixAngleRad(-Math.PI/4 - gameObject.transform.rotation), MyMath.FixAngleRad(Math.PI /4 - gameObject.transform.rotation));
*
* context.Fill ();*/
}
private void RenderBarSegments (Context cr, int w, int h, int r)
{
LinearGradient grad = new LinearGradient (0, 0, w, 0);
double last = 0.0;
foreach (Segment segment in segments) {
if (segment.Percent > 0) {
grad.AddColorStop (last, segment.Color);
grad.AddColorStop (last += segment.Percent, segment.Color);
}
}
CairoExtensions.RoundedRectangle (cr, 0, 0, w, h, r);
cr.SetSource (grad);
cr.FillPreserve ();
cr.GetSource ().Dispose ();
grad = new LinearGradient (0, 0, 0, h);
grad.AddColorStop (0.0, new Color (1, 1, 1, 0.125));
grad.AddColorStop (0.35, new Color (1, 1, 1, 0.255));
grad.AddColorStop (1, new Color (0, 0, 0, 0.4));
cr.SetSource (grad);
cr.Fill ();
cr.GetSource ().Dispose ();
}