Example usage for android.graphics Canvas getSaveCount

Introduction

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

Prototype

public int getSaveCount() 

Source Link

Document

Returns the number of matrix/clip states on the Canvas' private stack.

Usage

From source file:com.lab47billion.appchooser.HorizontalPicker.java

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

    int saveCount = canvas.getSaveCount();
    canvas.save();/*from ww w  .  j  a  va2 s  .  c o  m*/

    int selectedItem = mSelectedItem;

    float itemWithPadding = mItemWidth + mDividerSize;

    // translate horizontal to center
    canvas.translate(itemWithPadding * mSideItems, 0);

    if (mValues != null) {
        for (int i = 0; i < mValues.length; i++) {

            mTextPaint.setColor(getTextColor(i));

            // get text layout
            View layout = mLayouts[i][0];
            //                layout.draw(canvas);
            //NEW
            View layoutSub = mLayouts[i][1];
            int saveCountHeight = canvas.getSaveCount();
            canvas.save();

            float x = 0;
            float lineWidth = 40f;
            if (lineWidth > mItemWidth) {
                if (isRtl(mValues[i])) {
                    x += (lineWidth - mItemWidth) / 2;
                } else {
                    x -= (lineWidth - mItemWidth) / 2;
                }
            }

            /*set select item top padding */
            int yTranslate;
            if (!isScrollingStart && i == selectedItem) {
                mTextPaint.setTextSize(mSelectedTextSize);
            } else {
                mTextPaint.setTextSize(mNormalTextSize);
            }

            // translate vertically to center
            if (layoutSub != null) {
                yTranslate = (canvas.getHeight() - (layout.getHeight() + layoutSub.getHeight())) / 2;
            } else {
                yTranslate = (canvas.getHeight() - layout.getHeight()) / 2;
            }

            if (i == selectedItem && topPadding != -1) {
                yTranslate = topPadding;
            }

            canvas.translate(-x, yTranslate);

            RectF clipBounds;
            if (x == 0) {
                clipBounds = mItemClipBounds;
            } else {
                clipBounds = mItemClipBoundsOffser;
                clipBounds.set(mItemClipBounds);
                clipBounds.offset(x, 0);
            }
            canvas.clipRect(clipBounds);
            layout.draw(canvas);

            if (layoutSub != null) {
                Paint.FontMetrics fontMetrics = mTextPaint.getFontMetrics();
                int heightText = (int) (Math.abs(fontMetrics.ascent) + Math.abs(fontMetrics.descent));
                canvas.translate(-x, (layout.getHeight() + heightText - getTopPadding()) / 2);
                canvas.clipRect(clipBounds);
                layoutSub.draw(canvas);
            }

            // restore vertical translation
            canvas.restoreToCount(saveCountHeight);

            // translate horizontal for 1 item
            canvas.translate(itemWithPadding, 0);
        }
    }

    // restore horizontal translation
    canvas.restoreToCount(saveCount);

    drawEdgeEffect(canvas, mLeftEdgeEffect, 270);
    drawEdgeEffect(canvas, mRightEdgeEffect, 90);
}

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From source file:com.bitflake.counter.HorizontalPicker.java

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

    int saveCount = canvas.getSaveCount();
    canvas.save();/* ww  w  .  ja va  2 s. c  o m*/

    int selectedItem = this.selectedItem;

    float itemWithPadding = itemWidth + dividerSize;

    // translate horizontal to center
    canvas.translate(itemWithPadding * sideItems, 0);

    if (values != null) {
        for (int i = 0; i < values.length; i++) {

            // set text color for item
            textPaint.setColor(getTextColor(i));

            // get text layout
            BoringLayout layout = layouts[i];

            int saveCountHeight = canvas.getSaveCount();
            canvas.save();

            float x = 0;

            float lineWidth = layout.getLineWidth(0);
            if (lineWidth > itemWidth) {
                if (isRtl(values[i])) {
                    x += (lineWidth - itemWidth) / 2;
                } else {
                    x -= (lineWidth - itemWidth) / 2;
                }
            }

            if (marquee != null && i == selectedItem) {
                x += marquee.getScroll();
            }

            // translate vertically to center
            canvas.translate(-x, (canvas.getHeight() - layout.getHeight()) / 2);

            RectF clipBounds;
            if (x == 0) {
                clipBounds = itemClipBounds;
            } else {
                clipBounds = itemClipBoundsOffset;
                clipBounds.set(itemClipBounds);
                clipBounds.offset(x, 0);
            }

            canvas.clipRect(clipBounds);
            layout.draw(canvas);

            if (marquee != null && i == selectedItem && marquee.shouldDrawGhost()) {
                canvas.translate(marquee.getGhostOffset(), 0);
                layout.draw(canvas);
            }

            // restore vertical translation
            canvas.restoreToCount(saveCountHeight);

            // translate horizontal for 1 item
            canvas.translate(itemWithPadding, 0);
        }
    }

    // restore horizontal translation
    canvas.restoreToCount(saveCount);

    drawEdgeEffect(canvas, leftEdgeEffect, 270);
    drawEdgeEffect(canvas, rightEdgeEffect, 90);
}

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From source file:kr.selfcontrol.selflocklauncher.picker.HorizontalPicker.java

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

    int saveCount = canvas.getSaveCount();
    canvas.save();//from w w w. ja  va 2 s. com

    int selectedItem = mSelectedItem;

    float itemWithPadding = mItemWidth + mDividerSize;

    // translate horizontal to center
    canvas.translate(itemWithPadding * mSideItems, 0);

    if (mValues != null) {
        for (int i = 0; i < mValues.length; i++) {

            // set text color for item
            mTextPaint.setColor(getTextColor(i));

            // get text layout
            BoringLayout layout = mLayouts[i];

            int saveCountHeight = canvas.getSaveCount();
            canvas.save();

            float x = 0;

            float lineWidth = layout.getLineWidth(0);
            if (lineWidth > mItemWidth) {
                if (isRtl(mValues[i])) {
                    x += (lineWidth - mItemWidth) / 2;
                } else {
                    x -= (lineWidth - mItemWidth) / 2;
                }
            }

            if (mMarquee != null && i == selectedItem) {
                x += mMarquee.getScroll();
            }

            // translate vertically to center
            canvas.translate(-x, (canvas.getHeight() - layout.getHeight()) / 2);

            RectF clipBounds;
            if (x == 0) {
                clipBounds = mItemClipBounds;
            } else {
                clipBounds = mItemClipBoundsOffser;
                clipBounds.set(mItemClipBounds);
                clipBounds.offset(x, 0);
            }

            canvas.clipRect(clipBounds);
            layout.draw(canvas);

            if (mMarquee != null && i == selectedItem && mMarquee.shouldDrawGhost()) {
                canvas.translate(mMarquee.getGhostOffset(), 0);
                layout.draw(canvas);
            }

            // restore vertical translation
            canvas.restoreToCount(saveCountHeight);

            // translate horizontal for 1 item
            canvas.translate(itemWithPadding, 0);
        }
    }

    // restore horizontal translation
    canvas.restoreToCount(saveCount);

    drawEdgeEffect(canvas, mLeftEdgeEffect, 270);
    drawEdgeEffect(canvas, mRightEdgeEffect, 90);
}

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From source file:de.tud.nhd.petimo.libs.HorizontalPicker.java

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

    int saveCount = canvas.getSaveCount();
    canvas.save();//from w ww  . j av  a2s  .  c  om

    int selectedItem = this.selectedItem;

    float itemWithPadding = itemWidth + dividerSize;

    // translate horizontal to center
    canvas.translate(itemWithPadding * sideItems, 0);

    if (values != null) {
        for (int i = 0; i < values.length; i++) {

            if (i == selectedItem) {
                textPaint.setColor(getResources().getColor(R.color.colorAccent));
                //textPaint.setTextSize(40);
                textPaint.setFakeBoldText(true);
            } else {
                textPaint.setColor(getTextColor(i));
                //textPaint.setTextSize(textSize);
                textPaint.setFakeBoldText(false);
            }

            // get text layout
            BoringLayout layout = layouts[i];

            int saveCountHeight = canvas.getSaveCount();
            canvas.save();

            float x = 0;

            float lineWidth = layout.getLineWidth(0);
            if (lineWidth > itemWidth) {
                if (isRtl(values[i])) {
                    x += (lineWidth - itemWidth) / 2;
                } else {
                    x -= (lineWidth - itemWidth) / 2;
                }
            }

            if (marquee != null && i == selectedItem) {
                x += marquee.getScroll();
            }

            // translate vertically to center
            canvas.translate(-x, (canvas.getHeight() - layout.getHeight()) / 2);

            RectF clipBounds;
            if (x == 0) {
                clipBounds = itemClipBounds;
            } else {
                clipBounds = itemClipBoundsOffset;
                clipBounds.set(itemClipBounds);
                clipBounds.offset(x, 0);
            }

            canvas.clipRect(clipBounds);
            layout.draw(canvas);

            if (marquee != null && i == selectedItem && marquee.shouldDrawGhost()) {
                canvas.translate(marquee.getGhostOffset(), 0);
                layout.draw(canvas);
            }

            // restore vertical translation
            canvas.restoreToCount(saveCountHeight);

            // translate horizontal for 1 item
            canvas.translate(itemWithPadding, 0);
        }
    }

    // restore horizontal translation
    canvas.restoreToCount(saveCount);

    drawEdgeEffect(canvas, leftEdgeEffect, 270);
    drawEdgeEffect(canvas, rightEdgeEffect, 90);
}

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From source file:com.ionesmile.variousdemo.view.HorizontalPicker.java

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

    int saveCount = canvas.getSaveCount();
    canvas.save();/* w w w.  ja  v  a 2s. c  o  m*/

    int selectedItem = this.selectedItem;

    float itemWithPadding = itemWidth + dividerSize;

    // translate horizontal to center
    canvas.translate(itemWithPadding * sideItems, 0);

    if (values != null) {
        for (int i = 0; i < values.length; i++) {

            // set text color for item
            textPaint.setColor(getTextColor(i));
            textPaint.setTextSize(getTextSize(i));
            // get text layout
            BoringLayout layout = layouts[i];

            int saveCountHeight = canvas.getSaveCount();
            canvas.save();

            float x = 0;

            float lineWidth = layout.getLineWidth(0);
            if (lineWidth > itemWidth) {
                if (isRtl(values[i])) {
                    x += (lineWidth - itemWidth) / 2;
                } else {
                    x -= (lineWidth - itemWidth) / 2;
                }
            }

            if (marquee != null && i == selectedItem) {
                x += marquee.getScroll();
            }

            // translate vertically to center
            canvas.translate(-x, (canvas.getHeight() - layout.getHeight()) / 2);

            RectF clipBounds;
            if (x == 0) {
                clipBounds = itemClipBounds;
            } else {
                clipBounds = itemClipBoundsOffset;
                clipBounds.set(itemClipBounds);
                clipBounds.offset(x, 0);
            }

            canvas.clipRect(clipBounds);
            layout.draw(canvas);

            if (marquee != null && i == selectedItem && marquee.shouldDrawGhost()) {
                canvas.translate(marquee.getGhostOffset(), 0);
                layout.draw(canvas);
            }

            // restore vertical translation
            canvas.restoreToCount(saveCountHeight);

            // translate horizontal for 1 item
            canvas.translate(itemWithPadding, 0);
        }
    }

    // restore horizontal translation
    canvas.restoreToCount(saveCount);

    drawEdgeEffect(canvas, leftEdgeEffect, 270);
    drawEdgeEffect(canvas, rightEdgeEffect, 90);
}

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From source file:com.bitflake.counter.HorizontalPicker.java

private void drawEdgeEffect(Canvas canvas, EdgeEffect edgeEffect, int degrees) {

    if (canvas == null || edgeEffect == null || (degrees != 90 && degrees != 270)) {
        return;// w w  w  .j  a  v  a 2s.  com
    }

    if (!edgeEffect.isFinished()) {
        final int restoreCount = canvas.getSaveCount();
        final int width = getWidth();
        final int height = getHeight();

        canvas.rotate(degrees);

        if (degrees == 270) {
            canvas.translate(-height, Math.max(0, getScrollX()));
        } else { // 90
            canvas.translate(0, -(Math.max(getScrollRange(), getScaleX()) + width));
        }

        edgeEffect.setSize(height, width);
        if (edgeEffect.draw(canvas)) {
            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.JELLY_BEAN) {
                postInvalidateOnAnimation();
            } else {
                postInvalidate();
            }
        }

        canvas.restoreToCount(restoreCount);
    }

}

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From source file:pl.motyczko.scrollheader.PagerSlidingTabStrip.java

private void drawBackground(Canvas canvas) {
    if (mViewBackground == null)
        return;// www .ja  va2s .  co  m

    if (mViewBackground instanceof KenBurnsDrawable && !((KenBurnsDrawable) mViewBackground).isAnimating()) {
        mViewBackground.setBounds(0, 0, getWidth(), getHeight());
        ((KenBurnsDrawable) mViewBackground).animate();
        mKenBurnsInitialized = true;
    }
    if (mDrawMatrix == null && !(mViewBackground instanceof KenBurnsDrawable)) {
        calculateBackgroundBounds();
    }
    int saveCount = canvas.getSaveCount();
    canvas.save();
    float translation = mParallaxForBackground ? getTranslationY() / 2 : 0;
    canvas.translate(getScrollX(), getScrollY() - translation);
    if (mDrawMatrix != null)
        canvas.concat(mDrawMatrix);

    float fraction = Math.abs(getTranslationY() / getAllowedVerticalScrollLength());
    int color = (Integer) mColorEvaluator.evaluate(fraction, mOverlayColorExpanded, mOverlayColorCollapsed);
    mViewBackground.setColorFilter(color, PorterDuff.Mode.SRC_ATOP);
    mViewBackground.draw(canvas);
    canvas.restoreToCount(saveCount);
}

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From source file:cl.monsoon.s1next.widget.PhotoView.java

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

    // draw the photo
    if (mDrawable != null) {
        int saveCount = canvas.getSaveCount();
        canvas.save();/*from www.j  av a 2  s.c  o  m*/

        if (mDrawMatrix != null) {
            canvas.concat(mDrawMatrix);
        }
        mDrawable.draw(canvas);

        canvas.restoreToCount(saveCount);

        if (mVideoBlob != null) {
            final Bitmap videoImage = (mVideoReady ? sVideoImage : sVideoNotReadyImage);
            final int drawLeft = (getWidth() - videoImage.getWidth()) / 2;
            final int drawTop = (getHeight() - videoImage.getHeight()) / 2;
            canvas.drawBitmap(videoImage, drawLeft, drawTop, null);
        }

        // Extract the drawable's bounds (in our own copy, to not alter the image)
        mTranslateRect.set(mDrawable.getBounds());
        if (mDrawMatrix != null) {
            mDrawMatrix.mapRect(mTranslateRect);
        }

        if (mAllowCrop) {
            int previousSaveCount = canvas.getSaveCount();
            canvas.drawRect(0, 0, getWidth(), getHeight(), sCropDimPaint);
            canvas.save();
            canvas.clipRect(mCropRect);

            if (mDrawMatrix != null) {
                canvas.concat(mDrawMatrix);
            }

            mDrawable.draw(canvas);
            canvas.restoreToCount(previousSaveCount);
            canvas.drawRect(mCropRect, sCropPaint);
        }
    }
}

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From source file:martin.app.bitunion.widget.PhotoView.java

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

    // draw the photo
    if (mDrawable != null) {
        int saveCount = canvas.getSaveCount();
        canvas.save();// w  w  w.  ja  va 2  s . co m

        if (mDrawMatrix != null) {
            canvas.concat(mDrawMatrix);
        }
        mDrawable.draw(canvas);

        canvas.restoreToCount(saveCount);

        if (mVideoBlob != null) {
            final Bitmap videoImage = (mVideoReady ? sVideoImage : sVideoNotReadyImage);
            final int drawLeft = (getWidth() - videoImage.getWidth()) / 2;
            final int drawTop = (getHeight() - videoImage.getHeight()) / 2;
            canvas.drawBitmap(videoImage, drawLeft, drawTop, null);
        }

        // Extract the drawable's bounds (in our own copy, to not alter the image)
        mTranslateRect.set(mDrawable.getBounds());
        if (mDrawMatrix != null) {
            mDrawMatrix.mapRect(mTranslateRect);
        }

        if (mAllowCrop) {
            int previousSaveCount = canvas.getSaveCount();
            canvas.drawRect(0, 0, getWidth(), getHeight(), sCropDimPaint);
            canvas.save();
            canvas.clipRect(mCropRect);

            if (mDrawMatrix != null) {
                canvas.concat(mDrawMatrix);
            }

            mDrawable.draw(canvas);
            canvas.restoreToCount(previousSaveCount);
            canvas.drawRect(mCropRect, sCropPaint);
        }
    }
}

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From source file:com.guodong.sun.guodong.widget.ZoomImageView.java

@Override
protected void onDraw(Canvas canvas) {
    if (getDrawable() == null) {
        return; // couldn't resolve the URI
    }/*from w  ww .j a v  a  2s  . com*/

    if (mState == STATE_TRANSFORM_IN || mState == STATE_TRANSFORM_OUT) {
        if (mTransformStart) {
            initTransform();
        }
        if (mTransfrom == null) {
            super.onDraw(canvas);
            return;
        }

        if (mTransformStart) {
            if (mState == STATE_TRANSFORM_IN) {
                mTransfrom.initStartIn();
            } else {
                mTransfrom.initStartOut();
            }
        }

        if (mTransformStart) {
            Log.d("Dean", "mTransfrom.startScale:" + mTransfrom.startScale);
            Log.d("Dean", "mTransfrom.startScale:" + mTransfrom.endScale);
            Log.d("Dean", "mTransfrom.scale:" + mTransfrom.scale);
            Log.d("Dean", "mTransfrom.startRect:" + mTransfrom.startRect.toString());
            Log.d("Dean", "mTransfrom.endRect:" + mTransfrom.endRect.toString());
            Log.d("Dean", "mTransfrom.rect:" + mTransfrom.rect.toString());
        }

        mPaint.setAlpha(mBgAlpha);
        canvas.drawPaint(mPaint);

        int saveCount = canvas.getSaveCount();
        canvas.save();
        // ?Matrix
        getBmpMatrix();
        canvas.translate(mTransfrom.rect.left, mTransfrom.rect.top);
        canvas.clipRect(0, 0, mTransfrom.rect.width, mTransfrom.rect.height);
        canvas.concat(mSmoothMatrix);
        getDrawable().draw(canvas);
        canvas.restoreToCount(saveCount);
        if (mTransformStart) {
            mTransformStart = false;
            startTransform(mState);
        }
    } else {
        //Transform In???Activity??
        mPaint.setAlpha(255);
        canvas.drawPaint(mPaint);
        super.onDraw(canvas);
    }
}

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