EmulatorDisplayOverlaypublic class EmulatorDisplayOverlay extends Object
| Fields Summary |
|---|
| private static final String | TAG | | private android.graphics.Point | mScreenSize | | private final android.view.SurfaceControl | mSurfaceControl | | private final android.view.Surface | mSurface | | private int | mLastDW | | private int | mLastDH | | private boolean | mDrawNeeded | | private android.graphics.drawable.Drawable | mOverlay | | private int | mRotation | | private boolean | mVisible |
| Constructors Summary |
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public EmulatorDisplayOverlay(android.content.Context context, android.view.Display display, android.view.SurfaceSession session, int zOrder)
mScreenSize = new Point();
display.getSize(mScreenSize);
SurfaceControl ctrl = null;
try {
if (WindowManagerService.DEBUG_SURFACE_TRACE) {
ctrl = new WindowStateAnimator.SurfaceTrace(session, "EmulatorDisplayOverlay",
mScreenSize.x, mScreenSize.y, PixelFormat.TRANSLUCENT,
SurfaceControl.HIDDEN);
} else {
ctrl = new SurfaceControl(session, "EmulatorDisplayOverlay", mScreenSize.x,
mScreenSize.y, PixelFormat.TRANSLUCENT, SurfaceControl.HIDDEN);
}
ctrl.setLayerStack(display.getLayerStack());
ctrl.setLayer(zOrder);
ctrl.setPosition(0, 0);
ctrl.show();
mSurface.copyFrom(ctrl);
} catch (OutOfResourcesException e) {
}
mSurfaceControl = ctrl;
mDrawNeeded = true;
mOverlay = context.getDrawable(
com.android.internal.R.drawable.emulator_circular_window_overlay);
|
| Methods Summary |
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| private void | drawIfNeeded()
if (!mDrawNeeded || !mVisible) {
return;
}
mDrawNeeded = false;
Rect dirty = new Rect(0, 0, mScreenSize.x, mScreenSize.y);
Canvas c = null;
try {
c = mSurface.lockCanvas(dirty);
} catch (IllegalArgumentException e) {
} catch (OutOfResourcesException e) {
}
if (c == null) {
return;
}
c.drawColor(Color.TRANSPARENT, PorterDuff.Mode.SRC);
mSurfaceControl.setPosition(0, 0);
mOverlay.setBounds(0, 0, mScreenSize.x, mScreenSize.y);
mOverlay.draw(c);
mSurface.unlockCanvasAndPost(c);
| | void | positionSurface(int dw, int dh, int rotation)
if (mLastDW == dw && mLastDH == dh && mRotation == rotation) {
return;
}
mLastDW = dw;
mLastDH = dh;
mDrawNeeded = true;
mRotation = rotation;
drawIfNeeded();
| | public void | setVisibility(boolean on)
if (mSurfaceControl == null) {
return;
}
mVisible = on;
drawIfNeeded();
if (on) {
mSurfaceControl.show();
} else {
mSurfaceControl.hide();
}
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