/// <summary>
/// Raises the draw event.
/// </summary>
/// <param name="canvas">Canvas.</param>
protected override void OnDraw(global::Android.Graphics.Canvas canvas)
{
try
{
base.OnDraw(canvas);
if (_renderingSuspended)
{ // do nothing when rendering is suspended.
return;
}
// set the height/width.
if (_surfaceHeight != canvas.Height ||
_surfaceWidth != canvas.Width)
{
_surfaceHeight = canvas.Height;
_surfaceWidth = canvas.Width;
// make sure markers are in the correct position too.
_mapView.NotifyMapChange(this.SurfaceWidth, this.SurfaceHeight, this.CreateView(), this.Map.Projection);
// trigger rendering.
this.TriggerRendering();
// raise map initialized.
_mapView.RaiseMapInitialized();
}
if (_onScreenBuffer != null)
{ // there is a buffer.
// render only the cached scene.
canvas.DrawColor(new global::Android.Graphics.Color(_backgroundColor));
View2D view = this.CreateView();
float zoomFactor = (float)this.Map.Projection.ToZoomFactor(this.MapZoom);
_renderer.SceneRenderer.Render(
canvas,
view,
zoomFactor,
new Primitive2D[] { _onScreenBuffer });
}
}
catch (Exception ex)
{
OsmSharp.Logging.Log.TraceEvent("MapViewSurface", TraceEventType.Critical,
string.Format("An unhandled exception occured:{0}", ex.ToString()));
}
}
/// <summary>
/// Raises the draw event.
/// </summary>
/// <param name="canvas">Canvas.</param>
protected override void OnDraw(global::Android.Graphics.Canvas canvas)
{
base.OnDraw(canvas);
// set the height/width.
if (_surfaceHeight != canvas.Height ||
_surfaceWidth != canvas.Width)
{
_surfaceHeight = canvas.Height;
_surfaceWidth = canvas.Width;
// trigger rendering.
this.TriggerRendering();
}
// render only the cached scene.
canvas.DrawColor(new global::Android.Graphics.Color(_backgroundColor));
View2D view = this.CreateView();
float zoomFactor = (float)this.Map.Projection.ToZoomFactor(this.MapZoom);
_renderer.SceneRenderer.Render(
canvas,
view,
zoomFactor,
new Primitive2D[] { _onScreenBuffer });
}
/// <summary>
/// Raises the draw event.
/// </summary>
/// <param name="canvas">Canvas.</param>
protected override void OnDraw(global::Android.Graphics.Canvas canvas)
{
base.OnDraw (canvas);
// render only the cached scene.
lock(_scene)
{
canvas.DrawColor (new global::Android.Graphics.Color(_scene.BackColor));
_renderer.SceneRenderer.Render (
canvas,
_scene,
this.CreateView());
}
}
/// <summary>
/// Raises the draw event.
/// </summary>
/// <param name="canvas">Canvas.</param>
protected override void OnDraw(global::Android.Graphics.Canvas canvas)
{
base.OnDraw (canvas);
// set the height/width.
if (_surfaceHeight != canvas.Height ||
_surfaceWidth != canvas.Width)
{
_surfaceHeight = canvas.Height;
_surfaceWidth = canvas.Width;
// notify change.
this.Change();
}
// render only the cached scene.
lock(_scene)
{
canvas.DrawColor (new global::Android.Graphics.Color(_scene.BackColor));
_renderer.SceneRenderer.Render (
canvas,
_scene,
this.CreateView());
}
}