Example usage for android.graphics Canvas clipRect

Introduction

In this page you can find the example usage for android.graphics Canvas clipRect.

Prototype

public boolean clipRect(@NonNull Rect rect) 

Source Link

Document

Intersect the current clip with the specified rectangle, which is expressed in local coordinates.

Usage

From source file:com.blestep.sportsbracelet.view.TimelineChartViewSleep.java

/**
 * {@inheritDoc}/*from w w  w  . j  av  a2  s  .  co m*/
 */
@Override
protected void onDraw(Canvas c) {
    // 
    c.clipRect(mViewArea);
    mViewAreaBgShader = new LinearGradient(0, 0, 0, mViewArea.height(),
            ContextCompat.getColor(getContext(), R.color.tlcSleepGraphBgColorStart),
            ContextCompat.getColor(getContext(), R.color.tlcSleepGraphBgColorEnd), Shader.TileMode.CLAMP);
    mViewAreaBgPaint.setShader(mViewAreaBgShader);
    // 
    c.drawRect(mViewArea, mViewAreaBgPaint);
    c.drawRect(mGraphArea, mGraphAreaBgPaint);
    c.drawRect(mFooterArea, mFooterAreaBgPaint);
    // 
    c.drawLine(0, mGraphArea.height(), mGraphArea.width(), mGraphArea.height(), mGraphBottomLinePaint);

    final SparseArray<Object[]> data;
    final double maxValue;
    synchronized (mLock) {
        data = mData;
        maxValue = mMaxValue;
    }
    boolean hasData = data.size() > 0;
    if (hasData) {

        // ???
        computeItemsOnScreen(data.size());
        // 
        drawBarItems(c, data, maxValue);
        // 
        drawTickLabels(c, data);

    }
}

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From source file:com.blestep.sportsbracelet.view.TimelineChartView.java

/**
 * {@inheritDoc}/*w  w  w  .j ava 2s  . co m*/
 */
@Override
protected void onDraw(Canvas c) {
    // 
    c.clipRect(mViewArea);
    mViewAreaBgShader = new LinearGradient(0, 0, 0, mViewArea.height(),
            ContextCompat.getColor(getContext(), R.color.tlcStepsGraphBgColorStart),
            ContextCompat.getColor(getContext(), R.color.tlcStepsGraphBgColorEnd), Shader.TileMode.CLAMP);
    mViewAreaBgPaint.setShader(mViewAreaBgShader);
    // 
    c.drawRect(mViewArea, mViewAreaBgPaint);
    c.drawRect(mGraphArea, mGraphAreaBgPaint);
    c.drawRect(mFooterArea, mFooterAreaBgPaint);
    // 
    c.drawLine(0, mGraphArea.height(), mGraphArea.width(), mGraphArea.height(), mGraphBottomLinePaint);

    final SparseArray<Object[]> data;
    final double maxValue;
    synchronized (mLock) {
        data = mData;
        if (mIsShowTargetDashedLine && mTargetValue > mMaxValue) {
            maxValue = mTargetValue;
        } else {
            maxValue = mMaxValue;
        }
    }
    boolean hasData = data.size() > 0;
    if (hasData) {

        // ???
        computeItemsOnScreen(data.size());
        // 
        drawTargetLine(c);
        // 
        drawBarItems(c, data, maxValue);
        // 
        drawTickLabels(c, data);

    }
}

---

From source file:com.acbelter.scheduleview.ScheduleView.java

private void changeClipRect(Canvas canvas) {
    canvas.getClipBounds(mClipRect);//from   www  . j  a v a2s . co  m
    mClipRect.left += getPaddingLeft();
    mClipRect.top += getPaddingTop();
    mClipRect.right -= getPaddingRight();
    mClipRect.bottom -= getPaddingBottom();
    canvas.clipRect(mClipRect);
}

---

From source file:com.appunite.scroll.ScaleImageView.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    // Clips the next few drawing operations to the content area
    int clipRestoreCount = canvas.save();
    canvas.clipRect(mContentRect);

    if (mSrc != null) {
        getRealTranslation(mTranslation, mRealTranslation);
        canvas.translate(mRealTranslation.x, mRealTranslation.y);
        canvas.scale(mScale, mScale);/*  w w  w. ja  va  2s  .c  o  m*/
        Log.v(TAG, "scale=" + mScale + " translation=" + mTranslation.toString() + " realTranslation="
                + mRealTranslation.toString());
        mSrc.draw(canvas);
    }

    // Removes clipping rectangle
    canvas.restoreToCount(clipRestoreCount);

    drawEdgeEffectsUnclipped(canvas);

}

---

From source file:com.facebook.react.views.scroll.ReactScrollView.java

@Override
public void draw(Canvas canvas) {
    if (mEndFillColor != Color.TRANSPARENT) {
        final View content = getChildAt(0);
        if (mEndBackground != null && content != null && content.getBottom() < getHeight()) {
            mEndBackground.setBounds(0, content.getBottom(), getWidth(), getHeight());
            mEndBackground.draw(canvas);
        }//from  www.j a v a  2  s .  com
    }
    getDrawingRect(mRect);

    switch (mOverflow) {
    case ViewProps.VISIBLE:
        break;
    default:
        canvas.clipRect(mRect);
        break;
    }

    super.draw(canvas);
}

---

From source file:cn.androidy.androiddevelopmentpatterns.interactivechart.InteractiveLineGraphView.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    // Draws axes and text labels
    drawAxes(canvas);//from w  ww  .  j a  va2s  .  co m

    // Clips the next few drawing operations to the content area
    int clipRestoreCount = canvas.save();
    canvas.clipRect(mContentRect);

    drawDataSeriesUnclipped(canvas);
    drawEdgeEffectsUnclipped(canvas);

    // Removes clipping rectangle
    canvas.restoreToCount(clipRestoreCount);

    // Draws chart container
    canvas.drawRect(mContentRect, mAxisPaint);
}

---

From source file:com.mylikes.likes.etchasketch.Slate.java

private void drawStrokeDebugInfo(Canvas c) {
    final int ROW_HEIGHT = 24;
    final int ROW_MARGIN = 6;
    final int COLUMN_WIDTH = 55;

    final float FIRM_PRESSURE_LOW = 0.85f;
    final float FIRM_PRESSURE_HIGH = 1.25f;

    if (mStrokeDebugGraph == null) {
        final int width = c.getWidth() - 128;
        final int height = ROW_HEIGHT * mStrokes.length + 2 * ROW_MARGIN;
        mStrokeDebugGraph = Bitmap.createBitmap(width, height, Bitmap.Config.ARGB_8888);
        if (mStrokeDebugGraph == null) {
            throw new RuntimeException(
                    "drawStrokeDebugInfo: couldn't create debug bitmap (" + width + "x" + height + ")");
        }/*from  w  w w.  j a v  a  2 s  .co m*/
        mGraphPaint1 = new Paint(Paint.ANTI_ALIAS_FLAG);
    }

    Canvas graph = new Canvas(mStrokeDebugGraph);
    graph.save();
    graph.clipRect(new Rect(0, 0, COLUMN_WIDTH, graph.getHeight()));
    graph.drawColor(0, PorterDuff.Mode.CLEAR);
    graph.restore();

    int left = 4;
    int bottom = graph.getHeight() - ROW_MARGIN;
    final int STEP = 4;
    for (MarkersPlotter st : mStrokes) {
        float r = st.getLastPressure();

        if (r >= FIRM_PRESSURE_LOW && r <= FIRM_PRESSURE_HIGH)
            mGraphPaint1.setColor(0xFF33FF33);
        else if (r < FIRM_PRESSURE_LOW)
            mGraphPaint1.setColor(0xFF808080);
        else
            mGraphPaint1.setColor(0xFFFF8000);

        String s = (r < 0) ? "--"
                : String.format("%s %.4f", ((st.getLastTool() == MotionEvent.TOOL_TYPE_STYLUS) ? "S" : "F"), r);

        graph.drawText(s, left, bottom - 2, mGraphPaint1);

        if (mGraphX + COLUMN_WIDTH > graph.getWidth()) {
            mGraphX = 0;
            graph.save();
            graph.clipRect(new Rect(30, 0, graph.getWidth(), graph.getHeight()));
            graph.drawColor(0, PorterDuff.Mode.CLEAR);
            graph.restore();
        }

        if (r >= 0) {
            int barsize = (int) (r * ROW_HEIGHT);
            graph.drawRect(mGraphX + COLUMN_WIDTH, bottom - barsize, mGraphX + COLUMN_WIDTH + STEP, bottom,
                    mGraphPaint1);
        } else {
            graph.drawPoint(mGraphX + COLUMN_WIDTH + STEP, bottom, mGraphPaint1);
        }
        bottom -= (ROW_HEIGHT + ROW_MARGIN);
    }

    mGraphX += STEP;

    final int x = 96;
    final int y = 64;

    c.drawBitmap(mStrokeDebugGraph, x, y, null);
    invalidate(new Rect(x, y, x + c.getWidth(), y + c.getHeight()));
}

---

From source file:com.android.gallery3d.filtershow.imageshow.ImageShow.java

private void drawHighresImage(Canvas canvas, Bitmap fullHighres) {
    Matrix originalToScreen = MasterImage.getImage().originalImageToScreen();
    if (fullHighres != null && originalToScreen != null) {
        Matrix screenToOriginal = new Matrix();
        originalToScreen.invert(screenToOriginal);
        Rect rBounds = new Rect();
        rBounds.set(MasterImage.getImage().getPartialBounds());
        if (fullHighres != null) {
            originalToScreen.preTranslate(rBounds.left, rBounds.top);
            canvas.clipRect(mImageBounds);
            canvas.drawBitmap(fullHighres, originalToScreen, mPaint);
        }/*from  w  w  w .j a  va  2 s  . c  o  m*/
    }
}

---

From source file:com.android.widget.SlidingPaneLayout.java

@Override
protected boolean drawChild(Canvas canvas, View child, long drawingTime) {
    final LayoutParams lp = (LayoutParams) child.getLayoutParams();
    boolean result;
    final int save = canvas.save(Canvas.CLIP_SAVE_FLAG);

    if (mCanSlide && !lp.slideable && mSlideableView != null) {
        // Clip against the slider; no sense drawing what will immediately be covered.
        canvas.getClipBounds(mTmpRect);/*from w  w w.  j  a  v a2 s  .co  m*/
        mTmpRect.bottom = Math.min(mTmpRect.bottom, mSlideableView.getTop());
        canvas.clipRect(mTmpRect);
    }

    result = super.drawChild(canvas, child, drawingTime);

    canvas.restoreToCount(save);

    return result;
}

---

From source file:uk.ac.kent.jb509.shopper.utils.SlidingUpPanelLayout.java

@Override
protected boolean drawChild(final Canvas canvas, final View child, final long drawingTime) {
    final LayoutParams lp = (LayoutParams) child.getLayoutParams();
    boolean result;
    final int save = canvas.save(Canvas.CLIP_SAVE_FLAG);

    boolean drawScrim = false;

    if (mCanSlide && !lp.slideable && mSlideableView != null) {
        // Clip against the slider; no sense drawing what will immediately
        // be covered.
        canvas.getClipBounds(mTmpRect);/* w ww.java2s.  co  m*/
        mTmpRect.bottom = Math.min(mTmpRect.bottom, mSlideableView.getTop());

        if (!mIsTransparent) {
            canvas.clipRect(mTmpRect);
        }

        if (mSlideOffset < 1) {
            drawScrim = true;
        }
    }

    result = super.drawChild(canvas, child, drawingTime);
    canvas.restoreToCount(save);

    if (drawScrim) {
        final int baseAlpha = (mCoveredFadeColor & 0xff000000) >>> 24;
        final int imag = (int) (baseAlpha * (1 - mSlideOffset));
        final int color = imag << 24 | mCoveredFadeColor & 0xffffff;
        mCoveredFadePaint.setColor(color);
        canvas.drawRect(mTmpRect, mCoveredFadePaint);
    }

    return result;
}

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