Example usage for android.graphics Canvas save

List of usage examples for android.graphics Canvas save

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Introduction

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

Prototype

public int save()

Source Link

Document

Saves the current matrix and clip onto a private stack.

Usage

From source file:com.peerless2012.twowaynestedscrollview.TwoWayNestedScrollView.java

@Override
public void draw(Canvas canvas) {
    super.draw(canvas);
    if (mEdgeGlowTop != null) {
        final int scrollX = getScrollX();
        final int scrollY = getScrollY();
        if (scrollDirection == DIRECTION_HORIZONTAL) {
            //            if (!mEdgeGlowLeft.isFinished()) {
            //               Log.i("NestedScrollView", "draw  ");
            //               final int restoreCount = canvas.save();
            //               final int height = getHeight() - getPaddingTop()
            //                     - getPaddingBottom();
            //               
            //               canvas.translate(getPaddingLeft(), height);
            //               canvas.rotate(-90);
            //               mEdgeGlowLeft.setSize(getWidth(), height);
            //               if (mEdgeGlowLeft.draw(canvas)) {
            //                  ViewCompat.postInvalidateOnAnimation(this);
            //               }
            //               canvas.restoreToCount(restoreCount);
            //            }
            //            if (!mEdgeGlowRight.isFinished()) {
            //               Log.i("NestedScrollView", "draw  ?");
            //               final int restoreCount = canvas.save();
            //               final int height = getHeight() - getPaddingTop()
            //                     - getPaddingBottom();
            ///*from  ww w  . j a  va  2  s  .com*/
            //               canvas.translate(getPaddingLeft() + getWidth(),height);
            //               canvas.rotate(90);
            //               mEdgeGlowRight.setSize(getWidth(), height);
            //               if (mEdgeGlowRight.draw(canvas)) {
            //                  ViewCompat.postInvalidateOnAnimation(this);
            //               }
            //               canvas.restoreToCount(restoreCount);
            //            }

            if (!mEdgeGlowLeft.isFinished()) {
                final int restoreCount = canvas.save();
                final int height = getHeight() - getPaddingTop() - getPaddingBottom();

                canvas.rotate(270);
                canvas.translate(-height + getPaddingTop() - scrollY, Math.min(0, scrollX));
                mEdgeGlowLeft.setSize(height, getWidth());
                if (mEdgeGlowLeft.draw(canvas)) {
                    invalidate();
                }
                canvas.restoreToCount(restoreCount);
            }
            if (!mEdgeGlowRight.isFinished()) {
                final int restoreCount = canvas.save();
                final int width = getWidth();
                final int height = getHeight() - getPaddingTop() - getPaddingBottom();

                canvas.rotate(90);
                canvas.translate(-getPaddingTop() + scrollY,
                        -(Math.max(getHorizontalScrollRange(), scrollX) + width));
                mEdgeGlowRight.setSize(height, width);
                if (mEdgeGlowRight.draw(canvas)) {
                    invalidate();
                }
                canvas.restoreToCount(restoreCount);
            }
        } else if (scrollDirection == DIRECTION_VERTICAL) {
            if (!mEdgeGlowTop.isFinished()) {
                final int restoreCount = canvas.save();
                final int width = getWidth() - getPaddingLeft() - getPaddingRight();

                canvas.translate(scrollX + getPaddingLeft(), Math.min(0, scrollY));
                mEdgeGlowTop.setSize(width, getHeight());
                if (mEdgeGlowTop.draw(canvas)) {
                    ViewCompat.postInvalidateOnAnimation(this);
                }
                canvas.restoreToCount(restoreCount);
            }
            if (!mEdgeGlowBottom.isFinished()) {
                final int restoreCount = canvas.save();
                final int width = getWidth() - getPaddingLeft() - getPaddingRight();
                final int height = getHeight();

                canvas.translate(scrollX - width + getPaddingLeft(),
                        Math.max(getVerticalScrollRange(), scrollY) + height);
                canvas.rotate(180, width, 0);
                mEdgeGlowBottom.setSize(width, height);
                if (mEdgeGlowBottom.draw(canvas)) {
                    ViewCompat.postInvalidateOnAnimation(this);
                }
                canvas.restoreToCount(restoreCount);
            }
        } else {
            //do nothing
        }

    }
}

From source file:com.brantapps.viewpagerindicator.vertical.VerticalViewPager.java

@Override
public void draw(Canvas canvas) {
    super.draw(canvas);
    boolean needsInvalidate = false;

    final int overScrollMode = ViewCompat.getOverScrollMode(this);
    if (overScrollMode == ViewCompat.OVER_SCROLL_ALWAYS
            || (overScrollMode == ViewCompat.OVER_SCROLL_IF_CONTENT_SCROLLS && mAdapter != null
                    && mAdapter.getCount() > 1)) {
        // BrantApps Change: Various, including the rotation and translation of the edges, padding applied to width not height
        // BrantApps Change: Was:
        /*/*from ww  w  . j  a  v a 2s.  c  o m*/
        if (!mLeftEdge.isFinished()) {
        final int restoreCount = canvas.save();
        final int height = getHeight() - getPaddingTop() - getPaddingBottom();
        final int width = getWidth();
                
        canvas.rotate(270);
        canvas.translate(-height + getPaddingTop(), mFirstOffset * width);
        mLeftEdge.setSize(height, width);
        needsInvalidate |= mLeftEdge.draw(canvas);
        canvas.restoreToCount(restoreCount);
        }
        if (!mRightEdge.isFinished()) {
        final int restoreCount = canvas.save();
        final int width = getWidth();
        final int height = getHeight() - getPaddingTop() - getPaddingBottom();
                
        canvas.rotate(90);
        canvas.translate(-getPaddingTop(), -(mLastOffset + 1) * width);
        mRightEdge.setSize(height, width);
        needsInvalidate |= mRightEdge.draw(canvas);
        canvas.restoreToCount(restoreCount);
        }
         */
        if (!mTopEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth() - getPaddingLeft() - getPaddingRight();
            final int height = getHeight();

            canvas.translate(-getPaddingLeft(), mFirstOffset * height);
            mTopEdge.setSize(width, height);
            needsInvalidate |= mTopEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
        if (!mBottomEdge.isFinished()) {
            final int restoreCount = canvas.save();
            final int width = getWidth() - getPaddingLeft() - getPaddingRight();
            final int height = getHeight();

            canvas.rotate(180);
            canvas.translate(-width + getPaddingLeft(), -(mLastOffset + 1) * height);
            mBottomEdge.setSize(width, height);
            needsInvalidate |= mBottomEdge.draw(canvas);
            canvas.restoreToCount(restoreCount);
        }
    } else {
        mTopEdge.finish();
        mBottomEdge.finish();
    }

    if (needsInvalidate) {
        // Keep animating
        ViewCompat.postInvalidateOnAnimation(this);
    }
}

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

private void drawTickLabels(Canvas c, LongSparseArray<Pair<double[], int[]>> data) {
    final float alphaVariation = MAX_ZOOM_OUT - MIN_ZOOM_OUT;
    final float alpha = MAX_ZOOM_OUT - mCurrentZoom;
    mTickLabelFgPaint.setAlpha((int) ((alpha * 255) / alphaVariation));

    final int size = data.size() - 1;
    final float cx = mGraphArea.left + (mGraphArea.width() / 2);
    for (int i = mItemsOnScreen[1]; i >= mItemsOnScreen[0]; i--) {
        // Update the dynamic layout
        long timestamp = data.keyAt(i);
        final int tickFormat = getTickLabelFormat(timestamp);
        mTickDate.setTime(timestamp);/*from www  .  ja  v a  2  s .  co  m*/
        final String text = mTickFormatter[tickFormat].format(mTickDate).replace(".", "")
                .toUpperCase(Locale.getDefault());
        DynamicSpannableString spannable = mTickTextSpannables[tickFormat].get(text.length());
        if (spannable == null) {
            // If we don't have an spannable for the text length, create a new one
            // that allow to use it now and in the future. Doing this here (on draw)
            // is not the best, but it supposed to only be performed one time per
            // different tick text length
            spannable = createSpannableTick(tickFormat, text);
            mTickTextSpannables[tickFormat].put(text.length(), spannable);
        }
        spannable.update(text);

        DynamicLayout layout = mTickTextLayouts[tickFormat].get(text.length());
        if (layout == null) {
            // Update the layout as well
            layout = new DynamicLayout(spannable, mTickLabelFgPaint, (int) mBarItemWidth,
                    Layout.Alignment.ALIGN_CENTER, 1.0f, 1.0f, false);
            mTickTextLayouts[tickFormat].put(text.length(), layout);
        }

        // Calculate the x position and draw the layout
        final float x = cx + mCurrentOffset - (mBarWidth * (size - i)) - (layout.getWidth() / 2);
        final int restoreCount = c.save();
        c.translate(x, mFooterArea.top + (mFooterArea.height() / 2 - mTickLabelMinHeight / 2));
        layout.draw(c);
        c.restoreToCount(restoreCount);
    }
}

From source file:com.codemx.launcher3.CellLayout.java

@Override
protected void onDraw(Canvas canvas) {
    if (!mIsDragTarget) {
        return;//  w  w  w  .  j  av  a 2s  .  co m
    }

    // When we're large, we are either drawn in a "hover" state (ie when dragging an item to
    // a neighboring page) or with just a normal background (if backgroundAlpha > 0.0f)
    // When we're small, we are either drawn normally or in the "accepts drops" state (during
    // a drag). However, we also drag the mini hover background *over* one of those two
    // backgrounds
    if (mBackgroundAlpha > 0.0f) {
        mBackground.draw(canvas);
    }

    final Paint paint = mDragOutlinePaint;
    for (int i = 0; i < mDragOutlines.length; i++) {
        final float alpha = mDragOutlineAlphas[i];
        if (alpha > 0) {
            final Rect r = mDragOutlines[i];
            mTempRect.set(r);
            Utilities.scaleRectAboutCenter(mTempRect, getChildrenScale());
            final Bitmap b = (Bitmap) mDragOutlineAnims[i].getTag();
            paint.setAlpha((int) (alpha + .5f));
            canvas.drawBitmap(b, null, mTempRect, paint);
        }
    }

    if (DEBUG_VISUALIZE_OCCUPIED) {
        int[] pt = new int[2];
        ColorDrawable cd = new ColorDrawable(Color.RED);
        cd.setBounds(0, 0, mCellWidth, mCellHeight);
        for (int i = 0; i < mCountX; i++) {
            for (int j = 0; j < mCountY; j++) {
                if (mOccupied[i][j]) {
                    cellToPoint(i, j, pt);
                    canvas.save();
                    canvas.translate(pt[0], pt[1]);
                    cd.draw(canvas);
                    canvas.restore();
                }
            }
        }
    }

    int previewOffset = FolderIcon.FolderRingAnimator.sPreviewSize;

    // The folder outer / inner ring image(s)
    DeviceProfile grid = mLauncher.getDeviceProfile();
    for (int i = 0; i < mFolderOuterRings.size(); i++) {
        FolderIcon.FolderRingAnimator fra = mFolderOuterRings.get(i);

        Drawable d;
        int width, height;
        cellToPoint(fra.mCellX, fra.mCellY, mTempLocation);
        View child = getChildAt(fra.mCellX, fra.mCellY);

        if (child != null) {
            int centerX = mTempLocation[0] + mCellWidth / 2;
            int centerY = mTempLocation[1] + previewOffset / 2 + child.getPaddingTop()
                    + grid.folderBackgroundOffset;

            // Draw outer ring, if it exists
            if (FolderIcon.HAS_OUTER_RING) {
                d = FolderIcon.FolderRingAnimator.sSharedOuterRingDrawable;
                width = (int) (fra.getOuterRingSize() * getChildrenScale());
                height = width;
                canvas.save();
                canvas.translate(centerX - width / 2, centerY - height / 2);
                d.setBounds(0, 0, width, height);
                d.draw(canvas);
                canvas.restore();
            }

            // Draw inner ring
            d = FolderIcon.FolderRingAnimator.sSharedInnerRingDrawable;
            width = (int) (fra.getInnerRingSize() * getChildrenScale());
            height = width;
            canvas.save();
            canvas.translate(centerX - width / 2, centerY - width / 2);
            d.setBounds(0, 0, width, height);
            d.draw(canvas);
            canvas.restore();
        }
    }

    if (mFolderLeaveBehindCell[0] >= 0 && mFolderLeaveBehindCell[1] >= 0) {
        Drawable d = FolderIcon.sSharedFolderLeaveBehind;
        int width = d.getIntrinsicWidth();
        int height = d.getIntrinsicHeight();

        cellToPoint(mFolderLeaveBehindCell[0], mFolderLeaveBehindCell[1], mTempLocation);
        View child = getChildAt(mFolderLeaveBehindCell[0], mFolderLeaveBehindCell[1]);
        if (child != null) {
            int centerX = mTempLocation[0] + mCellWidth / 2;
            int centerY = mTempLocation[1] + previewOffset / 2 + child.getPaddingTop()
                    + grid.folderBackgroundOffset;

            canvas.save();
            canvas.translate(centerX - width / 2, centerY - width / 2);
            d.setBounds(0, 0, width, height);
            d.draw(canvas);
            canvas.restore();
        }
    }
}

From source file:com.lite.android.launcher3.CellLayout.java

@Override
protected void onDraw(Canvas canvas) {
    if (!mIsDragTarget) {
        return;// w  w w  . ja  v a 2 s.  c o  m
    }

    // When we're large, we are either drawn in a "hover" state (ie when dragging an item to
    // a neighboring page) or with just a normal background (if backgroundAlpha > 0.0f)
    // When we're small, we are either drawn normally or in the "accepts drops" state (during
    // a drag). However, we also drag the mini hover background *over* one of those two
    // backgrounds
    if (mBackgroundAlpha > 0.0f) {
        mBackground.draw(canvas);
    }

    final Paint paint = mDragOutlinePaint;
    for (int i = 0; i < mDragOutlines.length; i++) {
        final float alpha = mDragOutlineAlphas[i];
        if (alpha > 0) {
            final Rect r = mDragOutlines[i];
            mTempRect.set(r);
            Utilities.scaleRectAboutCenter(mTempRect, getChildrenScale());
            final Bitmap b = (Bitmap) mDragOutlineAnims[i].getTag();
            paint.setAlpha((int) (alpha + .5f));
            canvas.drawBitmap(b, null, mTempRect, paint);
        }
    }

    if (DEBUG_VISUALIZE_OCCUPIED) {
        int[] pt = new int[2];
        ColorDrawable cd = new ColorDrawable(Color.RED);
        cd.setBounds(0, 0, mCellWidth, mCellHeight);
        for (int i = 0; i < mCountX; i++) {
            for (int j = 0; j < mCountY; j++) {
                if (mOccupied[i][j]) {
                    cellToPoint(i, j, pt);
                    canvas.save();
                    canvas.translate(pt[0], pt[1]);
                    cd.draw(canvas);
                    canvas.restore();
                }
            }
        }
    }

    int previewOffset = FolderRingAnimator.sPreviewSize;

    // The folder outer / inner ring image(s)
    DeviceProfile grid = mLauncher.getDeviceProfile();
    for (int i = 0; i < mFolderOuterRings.size(); i++) {
        FolderRingAnimator fra = mFolderOuterRings.get(i);

        Drawable d;
        int width, height;
        cellToPoint(fra.mCellX, fra.mCellY, mTempLocation);
        View child = getChildAt(fra.mCellX, fra.mCellY);

        if (child != null) {
            int centerX = mTempLocation[0] + mCellWidth / 2;
            int centerY = mTempLocation[1] + previewOffset / 2 + child.getPaddingTop()
                    + grid.folderBackgroundOffset;

            // Draw outer ring, if it exists
            if (FolderIcon.HAS_OUTER_RING) {
                d = FolderRingAnimator.sSharedOuterRingDrawable;
                width = (int) (fra.getOuterRingSize() * getChildrenScale());
                height = width;
                canvas.save();
                canvas.translate(centerX - width / 2, centerY - height / 2);
                d.setBounds(0, 0, width, height);
                d.draw(canvas);
                canvas.restore();
            }

            // Draw inner ring
            d = FolderRingAnimator.sSharedInnerRingDrawable;
            if (d != null) {
                width = (int) (fra.getInnerRingSize() * getChildrenScale());
                height = width;
                canvas.save();
                canvas.translate(centerX - width / 2, centerY - width / 2);
                d.setBounds(0, 0, width, height);
                d.draw(canvas);
                canvas.restore();
            }
        }
    }

    if (mFolderLeaveBehindCell[0] >= 0 && mFolderLeaveBehindCell[1] >= 0) {
        Drawable d = FolderIcon.sSharedFolderLeaveBehind;
        int width = d.getIntrinsicWidth();
        int height = d.getIntrinsicHeight();

        cellToPoint(mFolderLeaveBehindCell[0], mFolderLeaveBehindCell[1], mTempLocation);
        View child = getChildAt(mFolderLeaveBehindCell[0], mFolderLeaveBehindCell[1]);
        if (child != null) {
            int centerX = mTempLocation[0] + mCellWidth / 2;
            int centerY = mTempLocation[1] + previewOffset / 2 + child.getPaddingTop()
                    + grid.folderBackgroundOffset;

            canvas.save();
            canvas.translate(centerX - width / 2, centerY - width / 2);
            d.setBounds(0, 0, width, height);
            d.draw(canvas);
            canvas.restore();
        }
    }
}

From source file:com.android.launcher3.CellLayout.java

@Override
protected void onDraw(Canvas canvas) {
    if (!mIsDragTarget) {
        return;/*from  w  ww .  j  a  v  a 2  s .co m*/
    }

    // When we're large, we are either drawn in a "hover" state (ie when dragging an item to
    // a neighboring page) or with just a normal background (if backgroundAlpha > 0.0f)
    // When we're small, we are either drawn normally or in the "accepts drops" state (during
    // a drag). However, we also drag the mini hover background *over* one of those two
    // backgrounds
    if (mBackgroundAlpha > 0.0f) {
        mBackground.draw(canvas);
    }

    final Paint paint = mDragOutlinePaint;
    for (int i = 0; i < mDragOutlines.length; i++) {
        final float alpha = mDragOutlineAlphas[i];
        if (alpha > 0) {
            final Rect r = mDragOutlines[i];
            mTempRect.set(r);
            Utilities.scaleRectAboutCenter(mTempRect, getChildrenScale());
            final Bitmap b = (Bitmap) mDragOutlineAnims[i].getTag();
            paint.setAlpha((int) (alpha + .5f));
            canvas.drawBitmap(b, null, mTempRect, paint);
        }
    }

    if (DEBUG_VISUALIZE_OCCUPIED) {
        int[] pt = new int[2];
        ColorDrawable cd = new ColorDrawable(Color.RED);
        cd.setBounds(0, 0, mCellWidth, mCellHeight);
        for (int i = 0; i < mCountX; i++) {
            for (int j = 0; j < mCountY; j++) {
                if (mOccupied[i][j]) {
                    cellToPoint(i, j, pt);
                    canvas.save();
                    canvas.translate(pt[0], pt[1]);
                    cd.draw(canvas);
                    canvas.restore();
                }
            }
        }
    }

    int previewOffset = FolderRingAnimator.sPreviewSize;

    // The folder outer / inner ring image(s)
    DeviceProfile grid = mLauncher.getDeviceProfile();
    for (int i = 0; i < mFolderOuterRings.size(); i++) {
        FolderRingAnimator fra = mFolderOuterRings.get(i);

        Drawable d;
        int width, height;
        cellToPoint(fra.mCellX, fra.mCellY, mTempLocation);
        View child = getChildAt(fra.mCellX, fra.mCellY);

        if (child != null) {
            int centerX = mTempLocation[0] + mCellWidth / 2;
            int centerY = mTempLocation[1] + previewOffset / 2 + child.getPaddingTop()
                    + grid.folderBackgroundOffset;

            // Draw outer ring, if it exists
            if (FolderIcon.HAS_OUTER_RING) {
                d = FolderRingAnimator.sSharedOuterRingDrawable;
                width = (int) (fra.getOuterRingSize() * getChildrenScale());
                height = width;
                canvas.save();
                canvas.translate(centerX - width / 2, centerY - height / 2);
                d.setBounds(0, 0, width, height);
                d.draw(canvas);
                canvas.restore();
            }

            // Draw inner ring
            d = FolderRingAnimator.sSharedInnerRingDrawable;
            width = (int) (fra.getInnerRingSize() * getChildrenScale());
            height = width;
            canvas.save();
            canvas.translate(centerX - width / 2, centerY - width / 2);
            d.setBounds(0, 0, width, height);
            d.draw(canvas);
            canvas.restore();
        }
    }

    if (mFolderLeaveBehindCell[0] >= 0 && mFolderLeaveBehindCell[1] >= 0) {
        Drawable d = FolderIcon.sSharedFolderLeaveBehind;
        int width = d.getIntrinsicWidth();
        int height = d.getIntrinsicHeight();

        cellToPoint(mFolderLeaveBehindCell[0], mFolderLeaveBehindCell[1], mTempLocation);
        View child = getChildAt(mFolderLeaveBehindCell[0], mFolderLeaveBehindCell[1]);
        if (child != null) {
            int centerX = mTempLocation[0] + mCellWidth / 2;
            int centerY = mTempLocation[1] + previewOffset / 2 + child.getPaddingTop()
                    + grid.folderBackgroundOffset;

            canvas.save();
            canvas.translate(centerX - width / 2, centerY - width / 2);
            d.setBounds(0, 0, width, height);
            d.draw(canvas);
            canvas.restore();
        }
    }
}

From source file:cc.flydev.launcher.Workspace.java

/**
 * Draw the View v into the given Canvas.
 *
 * @param v the view to draw//from   ww  w.  j  a  v  a 2  s.  c  o m
 * @param destCanvas the canvas to draw on
 * @param padding the horizontal and vertical padding to use when drawing
 */
private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) {
    final Rect clipRect = mTempRect;
    v.getDrawingRect(clipRect);

    boolean textVisible = false;

    destCanvas.save();
    if (v instanceof TextView && pruneToDrawable) {
        Drawable d = ((TextView) v).getCompoundDrawables()[1];
        clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding);
        destCanvas.translate(padding / 2, padding / 2);
        d.draw(destCanvas);
    } else {
        if (v instanceof FolderIcon) {
            // For FolderIcons the text can bleed into the icon area, and so we need to
            // hide the text completely (which can't be achieved by clipping).
            if (((FolderIcon) v).getTextVisible()) {
                ((FolderIcon) v).setTextVisible(false);
                textVisible = true;
            }
        } else if (v instanceof BubbleTextView) {
            final BubbleTextView tv = (BubbleTextView) v;
            clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V
                    + tv.getLayout().getLineTop(0);
        } else if (v instanceof TextView) {
            final TextView tv = (TextView) v;
            clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding()
                    + tv.getLayout().getLineTop(0);
        }
        destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2);
        destCanvas.clipRect(clipRect, Op.REPLACE);
        v.draw(destCanvas);

        // Restore text visibility of FolderIcon if necessary
        if (textVisible) {
            ((FolderIcon) v).setTextVisible(true);
        }
    }
    destCanvas.restore();
}

From source file:com.jjoe64.graphview.GridLabelRenderer.java

/**
 * draws the horizontal steps/*from   ww w  .j  a va2  s .c om*/
 * vertical lines and horizontal labels
 *
 * @param canvas canvas
 */
protected void drawHorizontalSteps(Canvas canvas) {
    // draw horizontal steps (vertical lines and horizontal labels)
    mPaintLabel.setColor(getHorizontalLabelsColor());
    int i = 0;
    for (Map.Entry<Integer, Double> e : mStepsHorizontal.entrySet()) {
        // draw line
        if (mStyles.highlightZeroLines) {
            if (e.getValue() == 0d) {
                mPaintLine.setStrokeWidth(5);
            } else {
                mPaintLine.setStrokeWidth(0);
            }
        }
        if (mStyles.gridStyle.drawVertical()) {
            canvas.drawLine(mGraphView.getGraphContentLeft() + e.getKey(), mGraphView.getGraphContentTop(),
                    mGraphView.getGraphContentLeft() + e.getKey(),
                    mGraphView.getGraphContentTop() + mGraphView.getGraphContentHeight(), mPaintLine);
        }

        // draw label
        if (isHorizontalLabelsVisible()) {
            if (mStyles.horizontalLabelsAngle > 0f && mStyles.horizontalLabelsAngle <= 180f) {
                if (mStyles.horizontalLabelsAngle < 90f) {
                    mPaintLabel.setTextAlign((Paint.Align.RIGHT));
                } else if (mStyles.horizontalLabelsAngle <= 180f) {
                    mPaintLabel.setTextAlign((Paint.Align.LEFT));
                }
            } else {
                mPaintLabel.setTextAlign(Paint.Align.CENTER);
                if (i == mStepsHorizontal.size() - 1)
                    mPaintLabel.setTextAlign(Paint.Align.RIGHT);
                if (i == 0)
                    mPaintLabel.setTextAlign(Paint.Align.LEFT);
            }

            // multiline labels
            String label = mLabelFormatter.formatLabel(e.getValue(), true);
            if (label == null) {
                label = "";
            }
            String[] lines = label.split("\n");

            // If labels are angled, calculate adjustment to line them up with the grid
            int labelWidthAdj = 0;
            if (mStyles.horizontalLabelsAngle > 0f && mStyles.horizontalLabelsAngle <= 180f) {
                Rect textBounds = new Rect();
                mPaintLabel.getTextBounds(lines[0], 0, lines[0].length(), textBounds);
                labelWidthAdj = (int) Math
                        .abs(textBounds.width() * Math.cos(Math.toRadians(mStyles.horizontalLabelsAngle)));
            }
            for (int li = 0; li < lines.length; li++) {
                // for the last line y = height
                float y = (canvas.getHeight() - mStyles.padding - getHorizontalAxisTitleHeight())
                        - (lines.length - li - 1) * getTextSize() * 1.1f + mStyles.labelsSpace;
                float x = mGraphView.getGraphContentLeft() + e.getKey();
                if (mStyles.horizontalLabelsAngle > 0 && mStyles.horizontalLabelsAngle < 90f) {
                    canvas.save();
                    canvas.rotate(mStyles.horizontalLabelsAngle, x + labelWidthAdj, y);
                    canvas.drawText(lines[li], x + labelWidthAdj, y, mPaintLabel);
                    canvas.restore();
                } else if (mStyles.horizontalLabelsAngle > 0 && mStyles.horizontalLabelsAngle <= 180f) {
                    canvas.save();
                    canvas.rotate(mStyles.horizontalLabelsAngle - 180f, x - labelWidthAdj, y);
                    canvas.drawText(lines[li], x - labelWidthAdj, y, mPaintLabel);
                    canvas.restore();
                } else {
                    canvas.drawText(lines[li], x, y, mPaintLabel);
                }
            }
        }
        i++;
    }
}

From source file:com.aidy.launcher3.ui.workspace.Workspace.java

/**
 * Draw the View v into the given Canvas.
 * //  www  . j a v a2s  .  co  m
 * @param v
 *            the view to draw
 * @param destCanvas
 *            the canvas to draw on
 * @param padding
 *            the horizontal and vertical padding to use when drawing
 */
private void drawDragView(View v, Canvas destCanvas, int padding, boolean pruneToDrawable) {
    final Rect clipRect = mTempRect;
    v.getDrawingRect(clipRect);

    boolean textVisible = false;

    destCanvas.save();
    if (v instanceof TextView && pruneToDrawable) {
        Drawable d = ((TextView) v).getCompoundDrawables()[1];
        clipRect.set(0, 0, d.getIntrinsicWidth() + padding, d.getIntrinsicHeight() + padding);
        destCanvas.translate(padding / 2, padding / 2);
        d.draw(destCanvas);
    } else {
        if (v instanceof FolderIcon) {
            // For FolderIcons the text can bleed into the icon area, and so
            // we need to
            // hide the text completely (which can't be achieved by
            // clipping).
            if (((FolderIcon) v).getTextVisible()) {
                ((FolderIcon) v).setTextVisible(false);
                textVisible = true;
            }
        } else if (v instanceof BubbleTextView) {
            final BubbleTextView tv = (BubbleTextView) v;
            clipRect.bottom = tv.getExtendedPaddingTop() - (int) BubbleTextView.PADDING_V
                    + tv.getLayout().getLineTop(0);
        } else if (v instanceof TextView) {
            final TextView tv = (TextView) v;
            clipRect.bottom = tv.getExtendedPaddingTop() - tv.getCompoundDrawablePadding()
                    + tv.getLayout().getLineTop(0);
        }
        destCanvas.translate(-v.getScrollX() + padding / 2, -v.getScrollY() + padding / 2);
        destCanvas.clipRect(clipRect, Op.REPLACE);
        v.draw(destCanvas);

        // Restore text visibility of FolderIcon if necessary
        if (textVisible) {
            ((FolderIcon) v).setTextVisible(true);
        }
    }
    destCanvas.restore();
}

From source file:com.lovely3x.eavlibrary.EasyAdapterView.java

/**
 * overscroll/* w w w  .j a v a  2  s  . co  m*/
 *
 * @param canvas
 */
protected void drawOverScrollEffect(Canvas canvas) {
    final int scrollY = getScrollY();
    final int scrollX = getScrollX();

    final int width;
    final int height;
    final int translateX;
    final int translateY;

    width = getWidth();
    height = getHeight();

    translateX = 0;
    translateY = 0;

    if (mTopEdgeEffect != null) {//
        if (!mTopEdgeEffect.isFinished()) {
            final int restoreCount = canvas.save();
            canvas.clipRect(translateX, translateY, translateX + width,
                    translateY + mTopEdgeEffect.getMaxHeight());
            final int edgeY = Math.min(0, scrollY) + translateY;
            canvas.translate(translateX, edgeY);
            mTopEdgeEffect.setSize(width, height);
            if (mTopEdgeEffect.draw(canvas)) {
                invalidateTopGlow();
            }
            canvas.restoreToCount(restoreCount);
        }
    }

    if (mBottomEdgeEffect != null) {//
        if (!mBottomEdgeEffect.isFinished()) {
            final int restoreCount = canvas.save();
            canvas.clipRect(translateX, translateY + height - mBottomEdgeEffect.getMaxHeight(),
                    translateX + width, translateY + height);
            final int edgeX = -width + translateX;
            final int edgeY = Math.max(getHeight(), scrollY);
            canvas.translate(edgeX, edgeY);
            canvas.rotate(180, width, 0);
            mBottomEdgeEffect.setSize(width, height);
            if (mBottomEdgeEffect.draw(canvas)) {
                invalidateBottomGlow();
            }
            canvas.restoreToCount(restoreCount);
        }
    }

    if (mLeftEdgeEffect != null) {//
        if (!mLeftEdgeEffect.isFinished()) {
            canvas.clipRect(translateX, translateY, translateX + mLeftEdgeEffect.getMaxHeight(),
                    translateY + height);
            final int restoreCount = canvas.save();
            canvas.translate(-width, getHeight() - getWidth());//?
            canvas.rotate(270, width, 0);//
            mLeftEdgeEffect.setSize(height, width);//?
            if (mLeftEdgeEffect.draw(canvas)) {
                invalidateLeftGlow();
            }
            canvas.restoreToCount(restoreCount);
        }
    }

    if (mRightEdgeEffect != null) {//?
        if (!mRightEdgeEffect.isFinished()) {
            //     canvas.clipRect(translateX, width - mRightEdgeEffect.getMaxHeight(), width, translateY + height);
            final int restoreCount = canvas.save();
            canvas.translate(0, getWidth());//?
            canvas.rotate(-270, width, 0);//
            mRightEdgeEffect.setSize(height, width);//?
            if (mRightEdgeEffect.draw(canvas)) {
                invalidateRightGlow();
            }
            canvas.restoreToCount(restoreCount);
        }
    }
}