Example usage for android.graphics Rect intersect

List of usage examples for android.graphics Rect intersect

Introduction

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

Prototype

@CheckResult
public boolean intersect(Rect r) 

Source Link

Document

If the specified rectangle intersects this rectangle, return true and set this rectangle to that intersection, otherwise return false and do not change this rectangle.

Usage

From source file:com.android.utils.ExploreByTouchHelper.java

/**
 * Computes whether the specified {@link Rect} intersects with the visible
 * portion of its parent {@link View}. Modifies {@code localRect} to contain
 * only the visible portion./*  w  w  w.j  ava 2  s.c  o  m*/
 *
 * @param localRect A rectangle in local (parent) coordinates.
 * @return Whether the specified {@link Rect} is visible on the screen.
 */
private boolean intersectVisibleToUser(Rect localRect) {
    // Missing or empty bounds mean this view is not visible.
    if ((localRect == null) || localRect.isEmpty()) {
        return false;
    }

    // Attached to invisible window means this view is not visible.
    if (mHost.getWindowVisibility() != View.VISIBLE) {
        return false;
    }

    // An invisible predecessor or one with alpha zero means
    // that this view is not visible to the user.
    Object current = this;
    while (current instanceof View) {
        final View view = (View) current;
        // We have attach info so this view is attached and there is no
        // need to check whether we reach to ViewRootImpl on the way up.
        if ((view.getAlpha() <= 0) || (view.getVisibility() != View.VISIBLE)) {
            return false;
        }
        current = view.getParent();
    }

    // If no portion of the parent is visible, this view is not visible.
    if (!mHost.getLocalVisibleRect(mTempVisibleRect)) {
        return false;
    }

    // Check if the view intersects the visible portion of the parent.
    return localRect.intersect(mTempVisibleRect);
}

From source file:org.mozilla.gecko.gfx.GeckoSoftwareLayerClient.java

public Rect beginDrawing(int width, int height, int tileWidth, int tileHeight, String metadata,
        boolean hasDirectTexture) {
    setHasDirectTexture(hasDirectTexture);

    // Make sure the tile-size matches. If it doesn't, we could crash trying
    // to access invalid memory.
    if (mHasDirectTexture) {
        if (tileWidth != 0 || tileHeight != 0) {
            Log.e(LOGTAG, "Aborting draw, incorrect tile size of " + tileWidth + "x" + tileHeight);
            return null;
        }/*from  w  w  w  .j a v  a2s  . co  m*/
    } else {
        if (tileWidth != TILE_SIZE.width || tileHeight != TILE_SIZE.height) {
            Log.e(LOGTAG, "Aborting draw, incorrect tile size of " + tileWidth + "x" + tileHeight);
            return null;
        }
    }

    LayerController controller = getLayerController();

    try {
        JSONObject viewportObject = new JSONObject(metadata);
        mNewGeckoViewport = new ViewportMetrics(viewportObject);

        // Update the background color, if it's present.
        String backgroundColorString = viewportObject.optString("backgroundColor");
        if (backgroundColorString != null) {
            controller.setCheckerboardColor(parseColorFromGecko(backgroundColorString));
        }
    } catch (JSONException e) {
        Log.e(LOGTAG, "Aborting draw, bad viewport description: " + metadata);
        return null;
    }

    // Make sure we don't spend time painting areas we aren't interested in.
    // Only do this if the Gecko viewport isn't going to override our viewport.
    Rect bufferRect = new Rect(0, 0, width, height);

    if (!mUpdateViewportOnEndDraw) {
        // First, find out our ideal displayport. We do this by taking the
        // clamped viewport origin and taking away the optimum viewport offset.
        // This would be what we would send to Gecko if adjustViewport were
        // called now.
        ViewportMetrics currentMetrics = controller.getViewportMetrics();
        PointF currentBestOrigin = RectUtils.getOrigin(currentMetrics.getClampedViewport());
        PointF viewportOffset = currentMetrics.getOptimumViewportOffset(new IntSize(width, height));
        currentBestOrigin.offset(-viewportOffset.x, -viewportOffset.y);

        Rect currentRect = RectUtils.round(new RectF(currentBestOrigin.x, currentBestOrigin.y,
                currentBestOrigin.x + width, currentBestOrigin.y + height));

        // Second, store Gecko's displayport.
        PointF currentOrigin = mNewGeckoViewport.getDisplayportOrigin();
        bufferRect = RectUtils.round(
                new RectF(currentOrigin.x, currentOrigin.y, currentOrigin.x + width, currentOrigin.y + height));

        // Take the intersection of the two as the area we're interested in rendering.
        if (!bufferRect.intersect(currentRect)) {
            // If there's no intersection, we have no need to render anything,
            // but make sure to update the viewport size.
            beginTransaction(mTileLayer);
            try {
                updateViewport(true);
            } finally {
                endTransaction(mTileLayer);
            }
            return null;
        }
        bufferRect.offset(Math.round(-currentOrigin.x), Math.round(-currentOrigin.y));
    }

    beginTransaction(mTileLayer);

    // Synchronise the buffer size with Gecko.
    if (mBufferSize.width != width || mBufferSize.height != height) {
        mBufferSize = new IntSize(width, height);

        // Reallocate the buffer if necessary
        if (mTileLayer instanceof MultiTileLayer) {
            int bpp = CairoUtils.bitsPerPixelForCairoFormat(mFormat) / 8;
            int size = mBufferSize.getArea() * bpp;
            if (mBuffer == null || mBuffer.capacity() != size) {
                // Free the old buffer
                if (mBuffer != null) {
                    GeckoAppShell.freeDirectBuffer(mBuffer);
                    mBuffer = null;
                }

                mBuffer = GeckoAppShell.allocateDirectBuffer(size);
            }
        }
    }

    return bufferRect;
}

From source file:com.google.android.apps.santatracker.rocketsleigh.RocketSleighActivity.java

private void processFrame() {
    long newTime = System.currentTimeMillis();
    long time = newTime - mLastTime;

    boolean end = false;

    if (time > 60) {
        Log.e("LONG", "Frame time took too long! Time: " + time + " Last process frame: " + mLastFrameTime
                + " Count: " + mBackgroundCount + " Level: " + mLevel);
    }//from www  .ja  v a  2  s .  c o m

    // We don't want to jump too far so, if real time is > 60 treat it as 33.  On screen will seem to slow
    // down instaead of "jump"
    if (time > 60) {
        time = 33;
    }

    // Score is based on time + presents.  Right now 100 point per second played.  No presents yet
    if (mLevel < 6) {
        mScore += time;
    }

    if (mIsTv) {
        mScoreText.setText(mScoreLabel + ": " + NumberFormat.getNumberInstance().format((mScore / 10)));
    } else {
        mScoreText.setText(NumberFormat.getNumberInstance().format((mScore / 10)));
    }

    float scroll = mElfVelX * time;

    // Do collision detection first...
    // The elf can't collide if it is within 2 seconds of colliding previously.
    if (mElfIsHit) {
        if ((newTime - mElfHitTime) > 2000) {
            // Move to next state.
            if (mElfState < 4) {
                mElfState++;
                AnalyticsManager.sendEvent(getString(R.string.analytics_screen_rocket),
                        getString(R.string.analytics_action_rocket_hit), null, mElfState);
                if (mElfState == 4) {
                    mSoundPool.play(mGameOverSound, 1.0f, 1.0f, 2, 0, 1.0f);
                    // No more control...
                    mControlView.setOnTouchListener(null);
                    mElfAccelY = 0.0f;
                    if (mJetThrustStream != 0) {
                        mSoundPool.stop(mJetThrustStream);
                    }
                }
            }
            updateElf(false);
            mElfIsHit = false;
        }
    } else if (mElfState == 4) {
        // Don't do any collision detection for parachute elf.  Just let him fall...
    } else {
        // Find the obstacle(s) we might be colliding with.  It can only be one of the first 3 obstacles.
        for (int i = 0; i < 3; i++) {
            View view = mObstacleLayout.getChildAt(i);
            if (view == null) {
                // No more obstacles...
                break;
            }

            int[] tmp = new int[2];
            view.getLocationOnScreen(tmp);

            // If the start of this view is past the center of the elf, we are done
            if (tmp[0] > mElfPosX) {
                break;
            }

            if (RelativeLayout.class.isInstance(view)) {
                // this is an obstacle layout.
                View topView = view.findViewById(R.id.top_view);
                View bottomView = view.findViewById(R.id.bottom_view);
                if ((topView != null) && topView.getVisibility() == View.VISIBLE) {
                    topView.getLocationOnScreen(tmp);
                    Rect obsRect = new Rect(tmp[0], tmp[1], tmp[0] + topView.getWidth(),
                            tmp[1] + topView.getHeight());
                    if (obsRect.contains((int) mElfPosX, (int) mElfPosY + mElfBitmap.getHeight() / 2)) {
                        handleCollision();
                    }
                }
                if (!mElfIsHit) {
                    if ((bottomView != null) && bottomView.getVisibility() == View.VISIBLE) {
                        bottomView.getLocationOnScreen(tmp);
                        Rect obsRect = new Rect(tmp[0], tmp[1], tmp[0] + bottomView.getWidth(),
                                tmp[1] + bottomView.getHeight());
                        if (obsRect.contains((int) mElfPosX, (int) mElfPosY + mElfBitmap.getHeight() / 2)) {
                            // Special case for the mammoth obstacle...
                            if (bottomView.getTag() != null) {
                                if (((mElfPosX - tmp[0]) / (float) bottomView.getWidth()) > 0.25f) {
                                    // We are over the mammoth not the spike.  lower the top of the rect and test again.
                                    obsRect.top = (int) (tmp[1] + ((float) bottomView.getHeight() * 0.18f));
                                    if (obsRect.contains((int) mElfPosX,
                                            (int) mElfPosY + mElfBitmap.getHeight() / 2)) {
                                        handleCollision();
                                    }
                                }
                            } else {
                                handleCollision();
                            }
                        }
                    }
                }
            } else if (FrameLayout.class.isInstance(view)) {
                // Present view
                FrameLayout frame = (FrameLayout) view;
                if (frame.getChildCount() > 0) {
                    ImageView presentView = (ImageView) frame.getChildAt(0);
                    presentView.getLocationOnScreen(tmp);
                    Rect presentRect = new Rect(tmp[0], tmp[1], tmp[0] + presentView.getWidth(),
                            tmp[1] + presentView.getHeight());
                    mElfLayout.getLocationOnScreen(tmp);
                    Rect elfRect = new Rect(tmp[0], tmp[1], tmp[0] + mElfLayout.getWidth(),
                            tmp[1] + mElfLayout.getHeight());
                    if (elfRect.intersect(presentRect)) {
                        // We got a present!
                        mPresentCount++;
                        if (mPresentCount < 4) {
                            mSoundPool.play(mScoreSmallSound, 1.0f, 1.0f, 2, 0, 1.0f);
                            mScore += 1000; // 100 points.  Score is 10x displayed score.
                            mPlus100.setVisibility(View.VISIBLE);
                            if (mElfPosY > (mScreenHeight / 2)) {
                                mPlus100.setY(mElfPosY - (mElfLayout.getHeight() + mPlus100.getHeight()));
                            } else {
                                mPlus100.setY(mElfPosY + mElfLayout.getHeight());
                            }
                            mPlus100.setX(mElfPosX);
                            if (m100Anim.hasStarted()) {
                                m100Anim.reset();
                            }
                            mPlus100.startAnimation(m100Anim);
                        } else {
                            mSoundPool.play(mScoreBigSound, 1.0f, 1.0f, 2, 0, 1.0f);
                            mScore += 5000; // 500 points.  Score is 10x displayed score.
                            if (!mRainingPresents) {
                                mPresentCount = 0;
                            }
                            mPlus500.setVisibility(View.VISIBLE);
                            if (mElfPosY > (mScreenHeight / 2)) {
                                mPlus500.setY(mElfPosY - (mElfLayout.getHeight() + mPlus100.getHeight()));
                            } else {
                                mPlus500.setY(mElfPosY + mElfLayout.getHeight());
                            }
                            mPlus500.setX(mElfPosX);
                            if (m500Anim.hasStarted()) {
                                m500Anim.reset();
                            }
                            mPlus500.startAnimation(m500Anim);
                            mPresentBonus = true;
                        }
                        frame.removeView(presentView);
                    } else if (elfRect.left > presentRect.right) {
                        mPresentCount = 0;
                    }
                }
            }
        }
    }

    if (mForegroundLayout.getChildCount() > 0) {
        int currentX = mForegroundScroll.getScrollX();
        View view = mForegroundLayout.getChildAt(0);
        int newX = currentX + (int) scroll;
        if (newX > view.getWidth()) {
            newX -= view.getWidth();
            mForegroundLayout.removeViewAt(0);
        }
        mForegroundScroll.setScrollX(newX);
    }

    // Scroll obstacle views
    if (mObstacleLayout.getChildCount() > 0) {
        int currentX = mObstacleScroll.getScrollX();
        View view = mObstacleLayout.getChildAt(0);
        int newX = currentX + (int) scroll;
        if (newX > view.getWidth()) {
            newX -= view.getWidth();
            mObstacleLayout.removeViewAt(0);
        }
        mObstacleScroll.setScrollX(newX);
    }

    // Scroll the background and foreground
    if (mBackgroundLayout.getChildCount() > 0) {
        int currentX = mBackgroundScroll.getScrollX();
        View view = mBackgroundLayout.getChildAt(0);
        int newX = currentX + (int) scroll;
        if (newX > view.getWidth()) {
            newX -= view.getWidth();
            mBackgroundLayout.removeViewAt(0);
            if (view.getTag() != null) {
                Pair<Integer, Integer> pair = (Pair<Integer, Integer>) view.getTag();
                int type = pair.first;
                int level = pair.second;
                if (type == 0) {
                    if (mBackgrounds[level] != null) {
                        mBackgrounds[level].recycle();
                        mBackgrounds[level] = null;
                    } else if (mBackgrounds2[level] != null) {
                        mBackgrounds2[level].recycle();
                        mBackgrounds2[level] = null;
                    }
                } else if (type == 1) {
                    if (mExitTransitions[level] != null) {
                        mExitTransitions[level].recycle();
                        mExitTransitions[level] = null;
                    }
                } else if (type == 2) {
                    if (mEntryTransitions[level] != null) {
                        mEntryTransitions[level].recycle();
                        mEntryTransitions[level] = null;
                    }
                }
            }
            if (mBackgroundCount == 5) {
                if (mLevel < 6) {
                    // Pre-fetch next levels backgrounds
                    // end level uses the index 1 background...
                    int level = (mLevel == 5) ? 1 : (mLevel + 1);
                    BackgroundLoadTask task = new BackgroundLoadTask(getResources(), mLevel + 1,
                            BACKGROUNDS[level], EXIT_TRANSITIONS[mLevel],
                            // Exit transitions are for the current level...
                            ENTRY_TRANSITIONS[level], mScaleX, mScaleY, mBackgrounds, mBackgrounds2,
                            mExitTransitions, mEntryTransitions, mScreenWidth, mScreenHeight);
                    task.execute();
                    addNextImages(mLevel, true);
                    addNextObstacles(mLevel, 2);
                }
                // Fetch first set of obstacles if the next level changes from woods to cave or cave to factory
                if (mLevel == 1) {
                    // Next level will be caves.  Get bitmaps for the first 20 obstacles.
                    ObstacleLoadTask task = new ObstacleLoadTask(getResources(), CAVE_OBSTACLES, mCaveObstacles,
                            mCaveObstacleList, 0, 2, mScaleX, mScaleY);
                    task.execute();
                } else if (mLevel == 3) {
                    // Next level will be factory.  Get bitmaps for the first 20 obstacles.
                    ObstacleLoadTask task = new ObstacleLoadTask(getResources(), FACTORY_OBSTACLES,
                            mFactoryObstacles, mFactoryObstacleList, 0, 2, mScaleX, mScaleY);
                    task.execute();
                }
                mBackgroundCount++;
            } else if (mBackgroundCount == 7) {
                // Add transitions and/or next level
                if (mLevel < 5) {
                    addNextTransitionImages(mLevel + 1);
                    if (mTransitionImagesCount > 0) {
                        addNextObstacleSpacer(mTransitionImagesCount);
                    }
                    addNextImages(mLevel + 1);
                    // First screen of each new level has no obstacles
                    if ((mLevel % 2) == 1) {
                        addNextObstacleSpacer(1);
                        addNextObstacles(mLevel + 1, 1);
                    } else {
                        addNextObstacles(mLevel + 1, 2);
                    }
                } else if (mLevel == 5) {
                    addNextTransitionImages(mLevel + 1);
                    if (mTransitionImagesCount > 0) {
                        addNextObstacleSpacer(mTransitionImagesCount);
                    }
                    addFinalImages();
                }
                mBackgroundCount++;
            } else if (mBackgroundCount == 9) {
                // Either the transition or the next level is showing
                if (this.mTransitionImagesCount > 0) {
                    mTransitionImagesCount--;
                } else {
                    if (mLevel == 1) {
                        // Destroy the wood obstacle bitmaps
                        Thread thread = new Thread(new Runnable() {
                            @Override
                            public void run() {
                                synchronized (mWoodObstacles) {
                                    for (Bitmap bmp : mWoodObstacles.values()) {
                                        bmp.recycle();
                                    }
                                    mWoodObstacles.clear();
                                }
                            }
                        });
                        thread.start();
                    } else if (mLevel == 3) {
                        // Destroy the cave obstacle bitmaps
                        Thread thread = new Thread(new Runnable() {
                            @Override
                            public void run() {
                                synchronized (mCaveObstacles) {
                                    for (Bitmap bmp : mCaveObstacles.values()) {
                                        bmp.recycle();
                                    }
                                    mCaveObstacles.clear();
                                }
                            }
                        });
                        thread.start();
                    } else if (mLevel == 5) {
                        // Destroy the factory obstacle bitmaps
                        Thread thread = new Thread(new Runnable() {
                            @Override
                            public void run() {
                                synchronized (mFactoryObstacles) {
                                    for (Bitmap bmp : mFactoryObstacles.values()) {
                                        bmp.recycle();
                                    }
                                    mFactoryObstacles.clear();
                                }
                            }
                        });
                        thread.start();
                    }
                    mLevel++;

                    // Add an event for clearing this level - note we don't increment mLevel as
                    // it's 0-based and we're tracking the previous level.
                    AnalyticsManager.sendEvent(getString(R.string.analytics_screen_rocket),
                            getString(R.string.analytics_action_rocket_level), null, mLevel);

                    // Achievements
                    if (!mHitLevel) {
                        mCleanLevel = true;
                    }
                    mHitLevel = false;
                    if (mLevel == 5) {
                        mPlus100.setSelected(true);
                        mPlus500.setSelected(true);
                    } else if (mLevel == 6) {
                        mPlus100.setSelected(false);
                        mPlus500.setSelected(false);
                    }
                    if (mLevel < 6) {
                        mSoundPool.play(mLevelUpSound, 1.0f, 1.0f, 2, 0, 1.0f);
                        addNextImages(mLevel);
                        addNextObstacles(mLevel, 2);
                    }
                    mBackgroundCount = 0;
                }
            } else {
                if ((mBackgroundCount % 2) == 1) {
                    if (mLevel < 6) {
                        addNextImages(mLevel);
                        addNextObstacles(mLevel, 2);
                    }
                }
                mBackgroundCount++;
            }
        }
        int current = mBackgroundScroll.getScrollX();
        mBackgroundScroll.setScrollX(newX);
        if ((mLevel == 6) && (mBackgroundScroll.getScrollX() == current)) {
            end = true;
        }
    }

    // Check on the elf
    boolean hitBottom = false;
    boolean hitTop = false;

    float deltaY = mElfVelY * time;
    mElfPosY = mElfLayout.getY() + deltaY;
    if (mElfPosY < 0.0f) {
        mElfPosY = 0.0f;
        mElfVelY = 0.0f;
        hitTop = true;
    } else if (mElfPosY > (mScreenHeight - mElfLayout.getHeight())) {
        mElfPosY = mScreenHeight - mElfLayout.getHeight();
        mElfVelY = 0.0f;
        hitBottom = true;
    } else {
        // Remember -Y is up!
        mElfVelY += (mGravityAccelY * time - mElfAccelY * time);
    }
    mElfLayout.setY(mElfPosY);

    // Rotate the elf to indicate thrust, dive.
    float rot = (float) (Math.atan(mElfVelY / mElfVelX) * 120.0 / Math.PI);
    mElfLayout.setRotation(rot);

    mElf.invalidate();

    // Update the time and spawn the next call to processFrame.
    mLastTime = newTime;
    mLastFrameTime = System.currentTimeMillis() - newTime;
    if (!end) {
        if ((mElfState < 4) || !hitBottom) {
            if (mLastFrameTime < 16) {
                mHandler.postDelayed(mGameLoop, 16 - mLastFrameTime);
            } else {
                mHandler.post(mGameLoop);
            }
        } else {
            endGame();
        }
    } else {
        // Whatever the final stuff is, do it here.
        mPlayPauseButton.setEnabled(false);
        mPlayPauseButton.setVisibility(View.INVISIBLE);
        endGame();
    }
}