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:org.androfarsh.widget.DragGridLayout.java

private void drawCellGrid(Canvas canvas) {
    if (mCellDrawable != null) {
        int i = 0;
        for (final Cell cell : mCells) {
            mTmpRect.set(cell.rect);/*from   w  ww.ja  v  a 2  s.com*/

            final int[] stateSet = new int[] { (mEditMode ? 1 : -1) * R.attr.state_editing,
                    (mPressedCell == cell ? 1 : -1) * android.R.attr.state_pressed };

            canvas.save();
            canvas.clipRect(cell.rect);
            mCellDrawable.setState(stateSet);
            mCellDrawable.setBounds(cell.rect);
            mCellDrawable.draw(canvas);

            if (mDebugMode) {
                mPaint.setTextAlign(Align.CENTER);
                mPaint.setTextSize(30);
                mPaint.setTypeface(Typeface.DEFAULT_BOLD);
                mPaint.setColor(Color.GREEN);
                canvas.drawText(Integer.toString(i), cell.rect.centerX(), cell.rect.centerY(), mPaint);
                ++i;
            }

            canvas.restore();
        }
    }

    if (mDebugMode) {
        mPaint.setColor(Color.GREEN);
        mPaint.setStyle(Style.STROKE);
        mPaint.setStrokeWidth(1.5f);
        canvas.drawPath(mCellsRegion.getBoundaryPath(), mPaint);
    }
}

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From source file:rp3.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);//w ww.  j  a  v  a2  s  . c  o m
        mTmpRect.right = Math.min(mTmpRect.right, mSlideableView.getLeft());
        canvas.clipRect(mTmpRect);
    }

    if (Build.VERSION.SDK_INT >= 11) { // HC
        result = super.drawChild(canvas, child, drawingTime);
    } else {
        if (lp.dimWhenOffset && mSlideOffset > 0) {
            if (!child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(true);
            }
            final Bitmap cache = child.getDrawingCache();
            if (cache != null) {
                canvas.drawBitmap(cache, child.getLeft(), child.getTop(), lp.dimPaint);
                result = false;
            } else {
                Log.e(TAG, "drawChild: child view " + child + " returned null drawing cache");
                result = super.drawChild(canvas, child, drawingTime);
            }
        } else {
            if (child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(false);
            }
            result = super.drawChild(canvas, child, drawingTime);
        }
    }

    canvas.restoreToCount(save);

    return result;
}

---

From source file:com.quran.labs.androidquran.widgets.SlidingUpPanelLayout.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);

    boolean drawScrim = false;

    if (mCanSlide && !lp.slideable && mSlideableView != null) {
        // Clip against the slider; no sense drawing what will immediately be covered,
        // Unless the panel is set to overlay content
        if (!mOverlayContent) {
            canvas.getClipBounds(mTmpRect);
            if (mIsSlidingUp) {
                mTmpRect.bottom = Math.min(mTmpRect.bottom, mSlideableView.getTop());
            } else {
                mTmpRect.top = Math.max(mTmpRect.top, mSlideableView.getBottom());
            }/*  w  ww. j a  v a2s  .  c o m*/
            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;
}

---

From source file:com.example.zhaozhu.practisecustomview.customviewgroup.HSlidingPaneLayout.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);

    if (this.mCanSlide && !lp.slideable && (this.mSlideableView != null)) {
        // Clip against the slider; no sense drawing what will immediately
        // be covered.
        canvas.getClipBounds(this.mTmpRect);
        this.mTmpRect.right = Math.min(this.mTmpRect.right, this.mSlideableView.getLeft());
        canvas.clipRect(this.mTmpRect);
    }//from   w  ww .  j  av a2 s  .  c o  m

    if (Build.VERSION.SDK_INT >= 11) { // HC
        result = super.drawChild(canvas, child, drawingTime);
    } else {
        if (lp.dimWhenOffset && (this.mSlideOffset > 0)) {
            if (!child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(true);
            }
            Bitmap cache = child.getDrawingCache();
            if (cache != null && !cache.isRecycled()) {
                canvas.drawBitmap(cache, child.getLeft(), child.getTop(), lp.dimPaint);
                result = false;
            } else {
                Log.e(HSlidingPaneLayout.TAG,
                        "drawChild: child view " + child + " returned null drawing cache");
                result = super.drawChild(canvas, child, drawingTime);
            }
        } else {
            if (child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(false);
            }
            result = super.drawChild(canvas, child, drawingTime);
        }
    }

    canvas.restoreToCount(save);

    return result;
}

---

From source file:com.example.zhaozhu.practisecustomview.customviewgroup.HSlidingPaneLayout2.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);

    if (this.mCanSlide && !lp.slideable && (this.mSlideableView != null)) {
        // Clip against the slider; no sense drawing what will immediately
        // be covered.
        canvas.getClipBounds(this.mTmpRect);
        this.mTmpRect.right = Math.min(this.mTmpRect.right, this.mSlideableView.getLeft());
        canvas.clipRect(this.mTmpRect);
    }// w ww .  j  a  v a  2 s.c  o  m

    if (Build.VERSION.SDK_INT >= 11) { // HC
        result = super.drawChild(canvas, child, drawingTime);
    } else {
        if (lp.dimWhenOffset && (this.mSlideOffset > 0)) {
            if (!child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(true);
            }
            Bitmap cache = child.getDrawingCache();
            if (cache != null && !cache.isRecycled()) {
                canvas.drawBitmap(cache, child.getLeft(), child.getTop(), lp.dimPaint);
                result = false;
            } else {
                Log.e(HSlidingPaneLayout2.TAG,
                        "drawChild: child view " + child + " returned null drawing cache");
                result = super.drawChild(canvas, child, drawingTime);
            }
        } else {
            if (child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(false);
            }
            result = super.drawChild(canvas, child, drawingTime);
        }
    }

    canvas.restoreToCount(save);

    return result;
}

---

From source file:co.codecrunch.musicplayerlite.slidinguppanelhelper.SlidingUpPanelLayout.java

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

    if (mSlideableView != child) { // if main view
        // Clip against the slider; no sense drawing what will immediately
        // be covered,
        // Unless the panel is set to overlay content
        canvas.getClipBounds(mTmpRect);/*from   ww  w  .j a v a 2 s .c o  m*/
        if (!mOverlayContent) {
            if (mIsSlidingUp) {
                mTmpRect.bottom = Math.min(mTmpRect.bottom, mSlideableView.getTop());
            } else {
                mTmpRect.top = Math.max(mTmpRect.top, mSlideableView.getBottom());
            }
        }
        if (mClipPanel) {
            canvas.clipRect(mTmpRect);
        }

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

        if (mCoveredFadeColor != 0 && mSlideOffset > 0) {
            final int baseAlpha = (mCoveredFadeColor & 0xff000000) >>> 24;
            final int imag = (int) (baseAlpha * mSlideOffset);
            final int color = imag << 24 | (mCoveredFadeColor & 0xffffff);
            mCoveredFadePaint.setColor(color);
            canvas.drawRect(mTmpRect, mCoveredFadePaint);
        }
    } else {
        result = super.drawChild(canvas, child, drawingTime);
    }

    canvas.restoreToCount(save);

    return result;
}

---

From source file:com.waz.zclient.pages.main.conversationpager.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 (canSlide && !lp.slideable && slideableView != null) {
        // Clip against the slider; no sense drawing what will immediately be covered.
        canvas.getClipBounds(tmpRect);/*from  w w w.j  av  a2s .c o  m*/
        if (isLayoutRtlSupport()) {
            tmpRect.left = Math.max(tmpRect.left, slideableView.getRight());
        } else {
            tmpRect.right = Math.min(tmpRect.right, slideableView.getLeft());
        }
        canvas.clipRect(tmpRect);
    }

    if (Build.VERSION.SDK_INT >= 11) { // HC
        result = super.drawChild(canvas, child, drawingTime);
    } else {
        if (lp.dimWhenOffset && slideOffset > 0) {
            if (!child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(true);
            }
            final Bitmap cache = child.getDrawingCache();
            if (cache != null) {
                canvas.drawBitmap(cache, child.getLeft(), child.getTop(), lp.dimPaint);
                result = false;
            } else {
                Timber.e("drawChild: child view %s returned null drawing cache", child);
                result = super.drawChild(canvas, child, drawingTime);
            }
        } else {
            if (child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(false);
            }
            result = super.drawChild(canvas, child, drawingTime);
        }
    }

    canvas.restoreToCount(save);

    return result;
}

---

From source file:cn.zmdx.kaka.locker.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);/* w  w  w.ja va 2s  .c  o m*/
        if (isLayoutRtlSupport()) {
            mTmpRect.left = Math.max(mTmpRect.left, mSlideableView.getRight());
        } else {
            mTmpRect.right = Math.min(mTmpRect.right, mSlideableView.getLeft());
        }
        canvas.clipRect(mTmpRect);
    }

    if (Build.VERSION.SDK_INT >= 11) { // HC
        result = super.drawChild(canvas, child, drawingTime);
    } else {
        if (lp.dimWhenOffset && mSlideOffset > 0) {
            if (!child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(true);
            }
            final Bitmap cache = child.getDrawingCache();
            if (cache != null) {
                canvas.drawBitmap(cache, child.getLeft(), child.getTop(), lp.dimPaint);
                result = false;
            } else {
                Log.e(TAG, "drawChild: child view " + child + " returned null drawing cache");
                result = super.drawChild(canvas, child, drawingTime);
            }
        } else {
            if (child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(false);
            }
            result = super.drawChild(canvas, child, drawingTime);
        }
    }

    canvas.restoreToCount(save);

    return result;
}

---

From source file:com.ruesga.timelinechart.TimelineChartView.java

/** {@inheritDoc} */
@Override/*from w  ww  . j  ava2  s  .c  o  m*/
protected void onDraw(Canvas c) {
    // 1.- Clip to padding
    c.clipRect(mViewArea);

    // 2.- Draw the backgrounds areas
    c.drawRect(mGraphArea, mGraphAreaBgPaint);
    if (mShowFooter) {
        c.drawRect(mFooterArea, mFooterAreaBgPaint);
    }

    final LongSparseArray<Pair<double[], int[]>> data;
    final double maxValue;
    synchronized (mLock) {
        data = mData;
        maxValue = mMaxValue;
    }
    boolean hasData = data.size() > 0;
    if (hasData && mIsDataComputed) {
        // 3.- Compute viewport and draw the data
        computeItemsOnScreen(data);
        drawBarItems(c, data, maxValue);

        // 4.- Draw tick labels and current position
        if (mShowFooter) {
            drawTickLabels(c, data);
            c.drawPath(mCurrentPositionPath, mFooterAreaBgPaint);
        }
    }

    // Draw the edge scrolling effects
    drawEdgeEffects(c);
}

---

From source file:com.mark.quick.ui.view.swipebacklayout.SwipeBackLayout.java

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

    if (mCanSlide && !lp.slideable && mSlideableView != null) {
        // Clip against the slider; no sense drawing what will immediately be covered.
        canvas.getClipBounds(mTmpRect);//from   ww  w.  j  a  va  2 s .com
        if (isLayoutRtlSupport()) {
            mTmpRect.left = Math.max(mTmpRect.left, mSlideableView.getRight());
        } else {
            mTmpRect.right = Math.min(mTmpRect.right, mSlideableView.getLeft());
        }
        canvas.clipRect(mTmpRect);
    }

    if (Build.VERSION.SDK_INT >= 11) { // HC
        result = super.drawChild(canvas, child, drawingTime);
    } else {
        if (lp.dimWhenOffset && mSlideOffset > 0) {
            if (!child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(true);
            }
            final Bitmap cache = child.getDrawingCache();
            if (cache != null) {
                canvas.drawBitmap(cache, child.getLeft(), child.getTop(), lp.dimPaint);
                result = false;
            } else {
                Log.e(TAG, "drawChild: child view " + child + " returned null drawing cache");
                result = super.drawChild(canvas, child, drawingTime);
            }
        } else {
            if (child.isDrawingCacheEnabled()) {
                child.setDrawingCacheEnabled(false);
            }
            result = super.drawChild(canvas, child, drawingTime);
        }
    }

    canvas.restoreToCount(save);

    return result;
}

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