protected override void OnMeasure(int widthMeasureSpec, int heightMeasureSpec)
{
base.OnMeasure(widthMeasureSpec, heightMeasureSpec);
int width = MeasureSpec.GetSize(widthMeasureSpec);
int height = MeasureSpec.GetSize(heightMeasureSpec);
//get current settings from MirrorController
mZoomRatio = MirrorController.GetInstance().GetZoomRatio();//from 1 to 4
mMirrorFlip = MirrorController.GetInstance().GetMirrorFlip();//true:flip image, flase:default
if (0 == mRatioWidth || 0 == mRatioHeight)
{
SetMeasuredDimension(width, height);
} else {
int newHeight = width * mRatioHeight / mRatioWidth;
Matrix mat = new Matrix();
if (mMirrorFlip)
{
//flip image
mat.PostTranslate(-(float)(width / 2.0), -(float)(newHeight / 2.0));
mat.PostScale((float)-1.0 * mZoomRatio, (float)1.0 * mZoomRatio);
mat.PostTranslate((float)(width / 2.0), (float)(newHeight / 2.0));
} else {
//normal image
mat.PostTranslate(-(float)(width / 2.0), -(float)(newHeight / 2.0));
mat.PostScale((float)1.0 * mZoomRatio, (float)1.0 * mZoomRatio);
mat.PostTranslate((float)(width / 2.0), (float)(newHeight / 2.0));
}
SetTransform(mat);
mat.Reset();
SetMeasuredDimension(width, newHeight);
}
}
private void ChangeBrightness()
{
var attributes = Activity.Window.Attributes;
attributes.ScreenBrightness = MirrorController.GetInstance().GetBrightness();
Activity.Window.Attributes = attributes;
}
private void StopCapture()
{
bool toStop = MirrorController.GetInstance().ToggleCaptureStop();
if (toStop)
{
Toast.MakeText(Activity, Resource.String.pause, ToastLength.Short).Show();
mPreviewSession.StopRepeating();
}
else
{
UpdatePreview();
}
}
private void FlipImage()
{
bool isFlipped = MirrorController.GetInstance().ToggleMirrorFlip();
if (isFlipped)
{
Toast.MakeText(Activity, Resource.String.frip_mode, ToastLength.Short).Show();
}
else
{
Toast.MakeText(Activity, Resource.String.mirror_mode, ToastLength.Short).Show();
}
mTextureView.RequestLayout();
}
private void Darken()
{
MirrorController.GetInstance().Darken();
ChangeBrightness();
}
private void ZoomOut()
{
MirrorController.GetInstance().ZoomOut();
mTextureView.RequestLayout();
}