Example usage for android.graphics Canvas drawPath

Introduction

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

Prototype

public void drawPath(@NonNull Path path, @NonNull Paint paint) 

Source Link

Document

Draw the specified path using the specified paint.

Usage

From source file:com.lovejjfg.demo.TouchCircleView.java

public void drawTriangle(Canvas c, float startAngle, float sweepAngle) {
    if (mArrow == null) {
        mArrow = new Path();
        mArrow.setFillType(Path.FillType.EVEN_ODD);
    } else {/*www .j a  v a2  s .co  m*/
        mArrow.reset();
    }

    // Adjust the position of the triangle so that it is inset as
    // much as the arc, but also centered on the arc.
    //        float inset = (int) mStrokeInset / 2 * mArrowScale;
    float x = (float) (mRingCenterRadius * Math.cos(0) + innerRectf.centerX());
    float y = (float) (mRingCenterRadius * Math.sin(0) + innerRectf.centerY());

    // Update the path each time. This works around an issue in SKIA
    // where concatenating a rotation matrix to a scale matrix
    // ignored a starting negative rotation. This appears to have
    // been fixed as of API 21.
    mArrow.moveTo(0, 0);
    mArrow.lineTo(ARROW_WIDTH * mArrowScale, 0);
    mArrow.lineTo((ARROW_WIDTH * mArrowScale / 2), (ARROW_HEIGHT * mArrowScale));
    mArrow.offset(x, y);
    mArrow.close();
    // draw a triangle
    c.rotate(startAngle + sweepAngle, innerRectf.centerX(), innerRectf.centerY());
    c.drawPath(mArrow, innerPaint);

}

---

From source file:com.android.screenspeak.contextmenu.RadialMenuView.java

private void drawWedge(Canvas canvas, float center, int i, RadialMenu menu, float degrees) {
    final float offset = mSubMenu != null ? mSubMenuOffset : mRootMenuOffset;

    final RadialMenuItem wedge = menu.getItem(i);
    final String title = wedge.getTitle().toString();
    final float rotation = ((degrees * i) + offset);
    final boolean selected = wedge.equals(mFocusedItem);

    // Apply the appropriate color filters.
    if (wedge.hasSubMenu()) {
        mPaint.setColorFilter(mSubMenuFilter);
    } else {// w ww  . j ava  2  s. c o  m
        mPaint.setColorFilter(null);
    }

    wedge.offset = rotation;

    mTempMatrix.reset();
    mTempMatrix.setRotate(rotation, center, center);
    mTempMatrix.postTranslate((mCenter.x - center), (mCenter.y - center));
    canvas.setMatrix(mTempMatrix);

    mPaint.setStyle(Style.FILL);
    mPaint.setColor(selected ? mSelectionColor : mOuterFillColor);
    mPaint.setShadowLayer(mShadowRadius, 0, 0, (selected ? mSelectionShadowColor : mTextShadowColor));
    canvas.drawPath(mCachedOuterPath, mPaint);
    mPaint.setShadowLayer(0, 0, 0, 0);

    mPaint.setStyle(Style.FILL);
    mPaint.setColor(selected ? mSelectionTextFillColor : mTextFillColor);
    mPaint.setTextAlign(Align.CENTER);
    mPaint.setTextSize(mTextSize);
    mPaint.setShadowLayer(mTextShadowRadius, 0, 0, mTextShadowColor);

    final String renderText = getEllipsizedText(mPaint, title, mCachedOuterPathWidth);

    // Orient text differently depending on the angle.
    if ((rotation < 90) || (rotation > 270)) {
        canvas.drawTextOnPath(renderText, mCachedOuterPathReverse, 0, (2 * mTextSize), mPaint);
    } else {
        canvas.drawTextOnPath(renderText, mCachedOuterPath, 0, -mTextSize, mPaint);
    }

    mPaint.setShadowLayer(0, 0, 0, 0);
    mPaint.setColorFilter(null);
}

---

From source file:com.android.settings.widget.DotsPageIndicator.java

private void drawUnselected(Canvas canvas) {
    combinedUnselectedPath.rewind();/*from  ww w.ja  va2s.c  o m*/

    // draw any settled, revealing or joining dots
    for (int page = 0; page < pageCount; page++) {
        int nextXIndex = page == pageCount - 1 ? page : page + 1;
        // todo Path.op should be supported in KitKat but causes the app to hang for Nexus 5.
        // For now disabling for all pre-L devices.
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            Path unselectedPath = getUnselectedPath(page, dotCenterX[page], dotCenterX[nextXIndex],
                    page == pageCount - 1 ? INVALID_FRACTION : joiningFractions[page],
                    dotRevealFractions[page]);
            combinedUnselectedPath.op(unselectedPath, Path.Op.UNION);
        } else {
            canvas.drawCircle(dotCenterX[page], dotCenterY, dotRadius, unselectedPaint);
        }
    }

    // draw any retreating joins
    if (retreatingJoinX1 != INVALID_FRACTION) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {
            combinedUnselectedPath.op(getRetreatingJoinPath(), Path.Op.UNION);
        }
    }
    canvas.drawPath(combinedUnselectedPath, unselectedPaint);
}

---

From source file:com.morninz.ninepinview.widget.NinePINView.java

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

    // draw circles around center points and connection line
    int drawnCount = mDrawnPoints.size();
    for (int j = 0; j < drawnCount; j++) {
        Point p1 = mDrawnPoints.get(j);
        canvas.drawCircle(p1.x, p1.y, mCircleRadius, mCirclePaint);
        if (j + 1 < drawnCount) {
            Point p2 = mDrawnPoints.get(j + 1);
            canvas.drawCircle(p2.x, p2.y, mCircleRadius, mCirclePaint);
            canvas.drawLine(p1.x, p1.y, p2.x, p2.y, mLinePaint);
            if (mWillDrawWrongTriangle) {
                // compute the wrong triangle's direction of this point.
                float angle = 0.f;
                if (p2.y == p1.y) {// x-axis
                    angle = p2.x > p1.x ? 0.f : 180.f;
                } else if (p2.x == p1.x) { // y-axis
                    angle = p2.y > p1.y ? 90.f : -90.f;
                } else {// in quadrants
                    double tanA = ((double) p2.y - (double) p1.y) / ((double) p2.x - (double) p1.x);
                    // in 1 or 4 quadrant
                    angle = (float) (Math.atan(tanA) * 180 / Math.PI);
                    // in 2 or 3 quadrant
                    if (p2.x < p1.x) {
                        angle += 180.f;/*from w  w  w .j a  v a2 s .  c om*/
                    }
                }
                Log.d(TAG, "angle " + angle);
                canvas.save();
                canvas.rotate(angle, p1.x, p1.y);
                canvas.drawPath(mWrongPaths[p1.index], mWrongPaint);
                canvas.restore();
            }
        }
    }

    // draw extra connection line
    if (mLastDrawnPoint != null) {
        canvas.drawLine(mLastDrawnPoint.x, mLastDrawnPoint.y, mCurrX, mCurrY, mLinePaint);
    }

    // draw 9 center points
    for (int i = 0; i < POINT_COUNT; i++) {
        Point p = mCenterPoints[i];
        canvas.drawCircle(p.x, p.y, mPointSize, mPointPaint);
    }
}

---

From source file:com.googlecode.eyesfree.widget.RadialMenuView.java

private void drawWedge(Canvas canvas, int width, int height, float center, int i, RadialMenu menu,
        float degrees) {
    final float offset = mSubMenu != null ? mSubMenuOffset : mRootMenuOffset;

    final RadialMenuItem wedge = menu.getItem(i);
    final String title = wedge.getTitle().toString();
    final float rotation = ((degrees * i) + offset);
    final boolean selected = wedge.equals(mFocusedItem);

    // Apply the appropriate color filters.
    if (wedge.hasSubMenu()) {
        mPaint.setColorFilter(mSubMenuFilter);
    } else {/*from   w  w w.  j  a va2s  . c om*/
        mPaint.setColorFilter(null);
    }

    wedge.offset = rotation;

    mTempMatrix.reset();
    mTempMatrix.setRotate(rotation, center, center);
    mTempMatrix.postTranslate((mCenter.x - center), (mCenter.y - center));
    canvas.setMatrix(mTempMatrix);

    mPaint.setStyle(Style.FILL);
    mPaint.setColor(selected ? mSelectionColor : mOuterFillColor);
    mPaint.setShadowLayer(mShadowRadius, 0, 0, (selected ? mSelectionShadowColor : mTextShadowColor));
    canvas.drawPath(mCachedOuterPath, mPaint);
    mPaint.setShadowLayer(0, 0, 0, 0);

    mPaint.setStyle(Style.FILL);
    mPaint.setColor(selected ? mSelectionTextFillColor : mTextFillColor);
    mPaint.setTextAlign(Align.CENTER);
    mPaint.setTextSize(mTextSize);
    mPaint.setShadowLayer(mTextShadowRadius, 0, 0, mTextShadowColor);

    final String renderText = getEllipsizedText(mPaint, title, mCachedOuterPathWidth);

    // Orient text differently depending on the angle.
    if ((rotation < 90) || (rotation > 270)) {
        canvas.drawTextOnPath(renderText, mCachedOuterPathReverse, 0, (2 * mTextSize), mPaint);
    } else {
        canvas.drawTextOnPath(renderText, mCachedOuterPath, 0, -mTextSize, mPaint);
    }

    mPaint.setShadowLayer(0, 0, 0, 0);
    mPaint.setColorFilter(null);
}

---

From source file:com.irccloud.android.DrawerArrowDrawable.java

@Override
public void draw(Canvas canvas) {
    Rect bounds = getBounds();/*from  w w w. j a v a2  s  .c o  m*/
    final boolean isRtl = isLayoutRtl();
    // Interpolated widths of arrow bars
    final float arrowSize = lerp(mBarSize, mTopBottomArrowSize, mProgress);
    final float middleBarSize = lerp(mBarSize, mMiddleArrowSize, mProgress);
    // Interpolated size of middle bar
    final float middleBarCut = lerp(0, mBarThickness / 2, mProgress);
    // The rotation of the top and bottom bars (that make the arrow head)
    final float rotation = lerp(0, ARROW_HEAD_ANGLE, mProgress);

    // The whole canvas rotates as the transition happens
    final float canvasRotate = lerp(isRtl ? 0 : -180, isRtl ? 180 : 0, mProgress);
    final float topBottomBarOffset = lerp(mBarGap + mBarThickness, 0, mProgress);
    mPath.rewind();

    final float arrowEdge = -middleBarSize / 2;
    // draw middle bar
    mPath.moveTo(arrowEdge + middleBarCut, 0);
    mPath.rLineTo(middleBarSize - middleBarCut, 0);

    final float arrowWidth = Math.round(arrowSize * Math.cos(rotation));
    final float arrowHeight = Math.round(arrowSize * Math.sin(rotation));

    // top bar
    mPath.moveTo(arrowEdge, topBottomBarOffset);
    mPath.rLineTo(arrowWidth, arrowHeight);

    // bottom bar
    mPath.moveTo(arrowEdge, -topBottomBarOffset);
    mPath.rLineTo(arrowWidth, -arrowHeight);
    mPath.moveTo(0, 0);
    mPath.close();

    canvas.save();
    // Rotate the whole canvas if spinning, if not, rotate it 180 to get
    // the arrow pointing the other way for RTL.
    if (mSpin) {
        canvas.rotate(canvasRotate * ((mVerticalMirror ^ isRtl) ? -1 : 1), bounds.centerX(), bounds.centerY());
    } else if (isRtl) {
        canvas.rotate(180, bounds.centerX(), bounds.centerY());
    }
    canvas.translate(bounds.centerX(), bounds.centerY());
    canvas.drawPath(mPath, mPaint);

    canvas.restore();
}

---

From source file:org.telegram.ui.Cells.SharedLinkCell.java

@Override
protected void onDraw(Canvas canvas) {
    if (titleLayout != null) {
        canvas.save();/*from w  ww  .  jav a2  s  .  co m*/
        canvas.translate(AndroidUtilities.dp(LocaleController.isRTL ? 8 : AndroidUtilities.leftBaseline),
                titleY);
        titleLayout.draw(canvas);
        canvas.restore();
    }

    if (descriptionLayout != null) {
        descriptionTextPaint.setColor(TEXT_COLOR);
        canvas.save();
        canvas.translate(AndroidUtilities.dp(LocaleController.isRTL ? 8 : AndroidUtilities.leftBaseline),
                descriptionY);
        descriptionLayout.draw(canvas);
        canvas.restore();
    }

    if (descriptionLayout2 != null) {
        descriptionTextPaint.setColor(TEXT_COLOR);
        canvas.save();
        canvas.translate(AndroidUtilities.dp(LocaleController.isRTL ? 8 : AndroidUtilities.leftBaseline),
                description2Y);
        descriptionLayout2.draw(canvas);
        canvas.restore();
    }

    if (!linkLayout.isEmpty()) {
        descriptionTextPaint.setColor(Theme.MSG_LINK_TEXT_COLOR);
        int offset = 0;
        for (int a = 0; a < linkLayout.size(); a++) {
            StaticLayout layout = linkLayout.get(a);
            if (layout.getLineCount() > 0) {
                canvas.save();
                canvas.translate(
                        AndroidUtilities.dp(LocaleController.isRTL ? 8 : AndroidUtilities.leftBaseline),
                        linkY + offset);
                if (pressedLink == a) {
                    canvas.drawPath(urlPath, urlPaint);
                }
                layout.draw(canvas);
                canvas.restore();
                offset += layout.getLineBottom(layout.getLineCount() - 1);
            }
        }
    }

    letterDrawable.draw(canvas);
    if (drawLinkImageView) {
        linkImageView.draw(canvas);
    }

    if (needDivider) {
        if (LocaleController.isRTL) {
            canvas.drawLine(0, getMeasuredHeight() - 1,
                    getMeasuredWidth() - AndroidUtilities.dp(AndroidUtilities.leftBaseline),
                    getMeasuredHeight() - 1, paint);
        } else {
            canvas.drawLine(AndroidUtilities.dp(AndroidUtilities.leftBaseline), getMeasuredHeight() - 1,
                    getMeasuredWidth(), getMeasuredHeight() - 1, paint);
        }
    }
}

---

From source file:com.lovejjfg.demo.TouchCircleView.java

private void drawCirclePath(Canvas canvas, float distance) {
    boolean isDrawPath = distance != 0;
    if (isDrawPath) {
        if (distance > 0) {
            p0.y -= changeDy;//from   w  w w.  j  av a2  s  . c om
            p11.y = p1.y = p0.y;//??
            // +
            p5.y += distance;
            p7.y = p6.y = p5.y;
            // +
            p8.x += changeDy / 2;
            p10.x = p9.x = p8.x;

            //? -
            p2.x -= changeDy / 2;
            p3.x = p4.x = p2.x;
        } else {
            //
            p0.y += distance;
            p11.y = p1.y = p0.y;//??
            // +
            p5.y += changeDy;
            p7.y = p6.y = p5.y;
            // +
            p8.x -= changeDy / 2;
            p10.x = p9.x = p8.x;

            //? -
            p2.x += changeDy / 2;
            p3.x = p4.x = p2.x;
        }
    }
    path.reset();
    path.moveTo(p0.x, p0.y);
    path.cubicTo(p1.x, p1.y, p2.x, p2.y, p3.x, p3.y);
    path.cubicTo(p4.x, p4.y, p5.x, p5.y, p6.x, p6.y);
    path.cubicTo(p7.x, p7.y, p8.x, p8.y, p9.x, p9.y);
    path.cubicTo(p10.x, p10.y, p11.x, p11.y, p0.x, p0.y);
    canvas.drawPath(path, mCurrentPaint);
}

---

From source file:com.knightweng.android.takemehome.presentation.view.PagerSlidingTabStrip.java

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

    if (isInEditMode() || tabCount == 0) {
        return;//from w ww .  j  a  v  a  2  s  . c  o  m
    }

    final int height = getHeight();

    // draw indicator line

    rectPaint.setColor(indicatorColor);

    // default: line below current tab
    View currentTab = tabsContainer.getChildAt(currentPosition);
    float lineLeft = currentTab.getLeft();
    float lineRight = currentTab.getRight();

    // if there is an offset, start interpolating left and right coordinates
    // between current and next tab
    if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {

        View nextTab = tabsContainer.getChildAt(currentPosition + 1);
        final float nextTabLeft = nextTab.getLeft();
        final float nextTabRight = nextTab.getRight();

        lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
        lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);
    }

    canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);

    // Draw the triangle in middle
    path.reset();
    path.moveTo(lineLeft + (lineRight - lineLeft) / 2, height - indicatorHeight - 12);
    path.lineTo(lineLeft + (lineRight - lineLeft) / 2 - 10, height - indicatorHeight);
    path.lineTo(lineLeft + (lineRight - lineLeft) / 2 + 10, height - indicatorHeight);
    path.lineTo(lineLeft + (lineRight - lineLeft) / 2, height - indicatorHeight - 12);
    path.close();
    canvas.drawPath(path, rectPaint);

    rectPaint.setColor(underlineColor);
    canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);

    // draw divider

    // dividerPaint.setColor(dividerColor);
    // for (int i = 0; i < tabCount - 1; i++) {
    // View tab = tabsContainer.getChildAt(i);
    // canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(),
    // height - dividerPadding, dividerPaint);
    // }
}

---

From source file:ingbank.com.tr.happybanking.common.ui.controls.PagerSlidingTabStrip.java

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

    if (isInEditMode() || tabCount == 0) {
        return;/*  ww  w .j a v a2 s.  c om*/
    }

    final int height = getHeight();

    // draw indicator line

    rectPaint.setColor(indicatorColor);

    // default: line below current tab
    View currentTab = tabsContainer.getChildAt(currentPosition);
    float lineLeft = currentTab.getLeft();
    float lineRight = currentTab.getRight();

    // if there is an offset, start interpolating left and right coordinates between current and next tab
    if (currentPositionOffset > 0f && currentPosition < tabCount - 1) {

        View nextTab = tabsContainer.getChildAt(currentPosition + 1);
        final float nextTabLeft = nextTab.getLeft();
        final float nextTabRight = nextTab.getRight();

        lineLeft = (currentPositionOffset * nextTabLeft + (1f - currentPositionOffset) * lineLeft);
        lineRight = (currentPositionOffset * nextTabRight + (1f - currentPositionOffset) * lineRight);
    }

    //canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);

    if (triangleIndicator) {
        Rect r = new Rect();
        int left = (int) lineLeft + (int) (((lineRight - lineLeft) / 2) - (indicatorHeight / 2)) - 20;
        int top = height - indicatorHeight;
        int right = (int) left + indicatorHeight + 30;
        int bottom = height;
        r.set(left, top, right, bottom);
        Path path = getEquilateralTriangle(r);
        canvas.drawPath(path, rectPaint);
    } else {
        canvas.drawRect(lineLeft, height - indicatorHeight, lineRight, height, rectPaint);
    }

    // draw underline

    rectPaint.setColor(underlineColor);
    canvas.drawRect(0, height - underlineHeight, tabsContainer.getWidth(), height, rectPaint);

    // draw divider

    dividerPaint.setColor(dividerColor);
    for (int i = 0; i < tabCount - 1; i++) {
        View tab = tabsContainer.getChildAt(i);
        canvas.drawLine(tab.getRight(), dividerPadding, tab.getRight(), height - dividerPadding, dividerPaint);
    }
}

---

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