Examples with ScaleGestureDetector android.view.ScaleGestureDetector used on opensource projects

Example 21 with ScaleGestureDetector

use of android.view.ScaleGestureDetector in project wire-android by wireapp.

the class TouchImageView method sharedConstructing.

private void sharedConstructing(Context context) {
    super.setClickable(true);
    this.context = context;
    scaleDetector = new ScaleGestureDetector(context, new ScaleListener());
    gestureDetector = new GestureDetector(context, new GestureListener());
    matrix = new Matrix();
    prevMatrix = new Matrix();
    m = new float[9];
    normalizedScale = 1;
    if (scaleType == null) {
        scaleType = ScaleType.FIT_CENTER;
    }
    minScale = 1;
    maxScale = 3;
    superMinScale = SUPER_MIN_MULTIPLIER * minScale;
    superMaxScale = SUPER_MAX_MULTIPLIER * maxScale;
    setImageMatrix(matrix);
    setScaleType(ScaleType.MATRIX);
    setState(State.NONE);
    onDrawReady = false;
    super.setOnTouchListener(new PrivateOnTouchListener());
}

Example 22 with ScaleGestureDetector

use of android.view.ScaleGestureDetector in project android_frameworks_base by crdroidandroid.

the class ExpandHelper method cancel.

/**
     * Use this to abort any pending expansions in progress.
     */
public void cancel() {
    finishExpanding(true, /* forceAbort */
    0f);
    clearView();
    // reset the gesture detector
    mSGD = new ScaleGestureDetector(mContext, mScaleGestureListener);
}

Example 23 with ScaleGestureDetector

use of android.view.ScaleGestureDetector in project android_frameworks_base by crdroidandroid.

the class OverlayDisplayWindow method createWindow.

private void createWindow() {
    LayoutInflater inflater = LayoutInflater.from(mContext);
    mWindowContent = inflater.inflate(com.android.internal.R.layout.overlay_display_window, null);
    mWindowContent.setOnTouchListener(mOnTouchListener);
    mTextureView = (TextureView) mWindowContent.findViewById(com.android.internal.R.id.overlay_display_window_texture);
    mTextureView.setPivotX(0);
    mTextureView.setPivotY(0);
    mTextureView.getLayoutParams().width = mWidth;
    mTextureView.getLayoutParams().height = mHeight;
    mTextureView.setOpaque(false);
    mTextureView.setSurfaceTextureListener(mSurfaceTextureListener);
    mTitleTextView = (TextView) mWindowContent.findViewById(com.android.internal.R.id.overlay_display_window_title);
    mTitleTextView.setText(mTitle);
    mWindowParams = new WindowManager.LayoutParams(WindowManager.LayoutParams.TYPE_DISPLAY_OVERLAY);
    mWindowParams.flags |= WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN | WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS | WindowManager.LayoutParams.FLAG_NOT_FOCUSABLE | WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_HARDWARE_ACCELERATED;
    if (mSecure) {
        mWindowParams.flags |= WindowManager.LayoutParams.FLAG_SECURE;
    }
    if (DISABLE_MOVE_AND_RESIZE) {
        mWindowParams.flags |= WindowManager.LayoutParams.FLAG_NOT_TOUCHABLE;
    }
    mWindowParams.privateFlags |= WindowManager.LayoutParams.PRIVATE_FLAG_FORCE_HARDWARE_ACCELERATED;
    mWindowParams.alpha = WINDOW_ALPHA;
    mWindowParams.gravity = Gravity.TOP | Gravity.LEFT;
    mWindowParams.setTitle(mTitle);
    mGestureDetector = new GestureDetector(mContext, mOnGestureListener);
    mScaleGestureDetector = new ScaleGestureDetector(mContext, mOnScaleGestureListener);
    // Set the initial position and scale.
    // The position and scale will be clamped when the display is first shown.
    mWindowX = (mGravity & Gravity.LEFT) == Gravity.LEFT ? 0 : mDefaultDisplayInfo.logicalWidth;
    mWindowY = (mGravity & Gravity.TOP) == Gravity.TOP ? 0 : mDefaultDisplayInfo.logicalHeight;
    mWindowScale = INITIAL_SCALE;
}

Example 24 with ScaleGestureDetector

use of android.view.ScaleGestureDetector in project android_frameworks_base by ResurrectionRemix.

the class ExpandHelper method cancel.

/**
     * Use this to abort any pending expansions in progress.
     */
public void cancel() {
    finishExpanding(true, /* forceAbort */
    0f);
    clearView();
    // reset the gesture detector
    mSGD = new ScaleGestureDetector(mContext, mScaleGestureListener);
}

Example 25 with ScaleGestureDetector

use of android.view.ScaleGestureDetector in project Klyph by jonathangerbaud.

the class TouchImageView method sharedConstructing.

private void sharedConstructing(Context context) {
    super.setClickable(true);
    this.context = context;
    mScaleDetector = new ScaleGestureDetector(context, new ScaleListener());
    matrix.setTranslate(1f, 1f);
    m = new float[9];
    setImageMatrix(matrix);
    setScaleType(ScaleType.MATRIX);
    setOnTouchListener(new OnTouchListener() {

        @Override
        public boolean onTouch(View v, MotionEvent event) {
            mScaleDetector.onTouchEvent(event);
            matrix.getValues(m);
            float x = m[Matrix.MTRANS_X];
            float y = m[Matrix.MTRANS_Y];
            PointF curr = new PointF(event.getX(), event.getY());
            switch(event.getAction()) {
                case MotionEvent.ACTION_DOWN:
                    last.set(event.getX(), event.getY());
                    start.set(last);
                    mode = DRAG;
                    break;
                case MotionEvent.ACTION_MOVE:
                    if (mode == DRAG) {
                        float deltaX = curr.x - last.x;
                        float deltaY = curr.y - last.y;
                        float scaleWidth = Math.round(origWidth * saveScale);
                        float scaleHeight = Math.round(origHeight * saveScale);
                        if (scaleWidth < width) {
                            deltaX = 0;
                            if (y + deltaY > 0)
                                deltaY = -y;
                            else if (y + deltaY < -bottom)
                                deltaY = -(y + bottom);
                        } else if (scaleHeight < height) {
                            deltaY = 0;
                            if (x + deltaX > 0)
                                deltaX = -x;
                            else if (x + deltaX < -right)
                                deltaX = -(x + right);
                        } else {
                            if (x + deltaX > 0)
                                deltaX = -x;
                            else if (x + deltaX < -right)
                                deltaX = -(x + right);
                            if (y + deltaY > 0)
                                deltaY = -y;
                            else if (y + deltaY < -bottom)
                                deltaY = -(y + bottom);
                        }
                        matrix.postTranslate(deltaX, deltaY);
                        last.set(curr.x, curr.y);
                    }
                    break;
                case MotionEvent.ACTION_UP:
                    mode = NONE;
                    int xDiff = (int) Math.abs(curr.x - start.x);
                    int yDiff = (int) Math.abs(curr.y - start.y);
                    if (xDiff < CLICK && yDiff < CLICK)
                        performClick();
                    break;
                case MotionEvent.ACTION_POINTER_UP:
                    mode = NONE;
                    break;
            }
            setImageMatrix(matrix);
            invalidate();
            // indicate event was handled
            return true;
        }
    });
}