Example usage for android.graphics Rect sort

Introduction

In this page you can find the example usage for android.graphics Rect sort.

Prototype

public void sort() 

Source Link

Document

Swap top/bottom or left/right if there are flipped (i.e.

Usage

From source file:com.android.switchaccess.SwitchAccessNodeCompat.java

/**
 * Find the largest sub-rectangle that doesn't intersect a specified one.
 *
 * @param rectToModify The rect that may be modified to avoid intersections
 * @param otherRect The rect that should be avoided
 *///from  w w w .  j ava 2 s.co m
private static void adjustRectToAvoidIntersection(Rect rectToModify, Rect otherRect) {
    /*
     * Some rectangles are flipped around (left > right). Make sure we have two Rects free of
     * such pathologies.
     */
    rectToModify.sort();
    otherRect.sort();
    /*
     * Intersect rectToModify with four rects that represent cuts of the entire space along
     * lines defined by the otherRect's edges
     */
    Rect[] cuts = { new Rect(Integer.MIN_VALUE, Integer.MIN_VALUE, otherRect.left, Integer.MAX_VALUE),
            new Rect(Integer.MIN_VALUE, Integer.MIN_VALUE, Integer.MAX_VALUE, otherRect.top),
            new Rect(otherRect.right, Integer.MIN_VALUE, Integer.MAX_VALUE, Integer.MAX_VALUE),
            new Rect(Integer.MIN_VALUE, otherRect.bottom, Integer.MAX_VALUE, Integer.MAX_VALUE) };

    int maxIntersectingRectArea = 0;
    int indexOfLargestIntersection = -1;
    for (int i = 0; i < cuts.length; i++) {
        if (cuts[i].intersect(rectToModify)) {
            /* Reassign this cut to its intersection with rectToModify */
            int visibleRectArea = cuts[i].width() * cuts[i].height();
            if (visibleRectArea > maxIntersectingRectArea) {
                maxIntersectingRectArea = visibleRectArea;
                indexOfLargestIntersection = i;
            }
        }
    }
    if (maxIntersectingRectArea <= 0) {
        // The rectToModify isn't within any of our cuts, so it's entirely occuled by otherRect.
        rectToModify.setEmpty();
        return;
    }
    rectToModify.set(cuts[indexOfLargestIntersection]);
}

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From source file:com.android.switchaccess.SwitchAccessNodeCompat.java

private void updateVisibility() {
    if (!mVisibilityCalculated) {
        mVisibleBoundsInScreen = new Rect();
        getBoundsInScreen(mVisibleBoundsInScreen);
        /* Deal with visibility implications for windows above */
        Rect windowBoundsInScreen = new Rect();
        for (int i = 0; i < mWindowsAbove.size(); ++i) {
            mWindowsAbove.get(i).getBoundsInScreen(windowBoundsInScreen);
            mVisibleBoundsInScreen.sort();
            windowBoundsInScreen.sort();
            if (Rect.intersects(mVisibleBoundsInScreen, windowBoundsInScreen)) {
                adjustRectToAvoidIntersection(mVisibleBoundsInScreen, windowBoundsInScreen);
            }/*from   www .java  2  s .  c  o  m*/
        }
        mVisibilityCalculated = true;
    }
}

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