Example usage for android.graphics Canvas drawCircle

Introduction

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

Prototype

public void drawCircle(float cx, float cy, float radius, @NonNull Paint paint) 

Source Link

Document

Draw the specified circle using the specified paint.

Usage

From source file:com.android.datetimepicker.time.CircleView.java

@Override
public void onDraw(Canvas canvas) {
    int viewWidth = getWidth();
    if (viewWidth == 0 || !mIsInitialized) {
        return;//from  w w  w. jav  a 2s . co m
    }

    if (!mDrawValuesReady) {
        mXCenter = getWidth() / 2;
        mYCenter = getHeight() / 2;
        mCircleRadius = (int) (Math.min(mXCenter, mYCenter) * mCircleRadiusMultiplier);

        if (!mIs24HourMode) {
            // We'll need to draw the AM/PM circles, so the main circle will need to have
            // a slightly higher center. To keep the entire view centered vertically, we'll
            // have to push it up by half the radius of the AM/PM circles.
            int amPmCircleRadius = (int) (mCircleRadius * mAmPmCircleRadiusMultiplier);
            mYCenter -= amPmCircleRadius * 0.75;
        }

        mDrawValuesReady = true;
    }

    // Draw the white circle.
    mPaint.setColor(mCircleColor);
    canvas.drawCircle(mXCenter, mYCenter, mCircleRadius, mPaint);

    // Draw a small black circle in the center.
    mPaint.setColor(mDotColor);
    canvas.drawCircle(mXCenter, mYCenter, 8, mPaint);
}

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From source file:com.codetroopers.betterpickers.radialtimepicker.CircleView.java

@Override
public void onDraw(Canvas canvas) {
    int viewWidth = getWidth();
    if (viewWidth == 0 || !mIsInitialized) {
        return;/*from  w w w. j  a v  a 2s.c o  m*/
    }

    if (!mDrawValuesReady) {
        mXCenter = getWidth() / 2;
        mYCenter = getHeight() / 2;
        mCircleRadius = (int) (Math.min(mXCenter, mYCenter) * mCircleRadiusMultiplier);

        if (!mIs24HourMode) {
            // We'll need to draw the AM/PM circles, so the main circle will need to have
            // a slightly higher center. To keep the entire view centered vertically, we'll
            // have to push it up by half the radius of the AM/PM circles.
            int amPmCircleRadius = (int) (mCircleRadius * mAmPmCircleRadiusMultiplier);
            mYCenter -= amPmCircleRadius / 2;
        }

        mDrawValuesReady = true;
    }

    // Draw the white circle.
    mPaint.setColor(mCircleColor);
    canvas.drawCircle(mXCenter, mYCenter, mCircleRadius, mPaint);

    // Draw a small black circle in the center.
    mPaint.setColor(mCentralDotColor);
    canvas.drawCircle(mXCenter, mYCenter, 2, mPaint);
}

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From source file:com.kmagic.solitaire.DrawMaster.java

/**
 * Draw a heart/*from w w  w .j  a  v  a2 s. c o  m*/
 * @param canvas canvas to draw on
 * @param width width of the heart
 * @param height height of the heart
 */
public void drawHeart(final Canvas canvas, final float width, final float height) {
    final Paint paint = getRedPaint();
    final float width_half = width / 2;
    final float width_quarter = width / 4;
    final float height_quarter = height / 4;
    final float height_third = height / 3;
    canvas.drawCircle(width_quarter, height_quarter, width_quarter, paint);
    canvas.drawCircle(width_quarter * 3, height_quarter, width_quarter, paint);
    final Path path = new Path();
    path.moveTo(0, height_third);
    path.lineTo(width_half, height);
    path.lineTo(width, height_third);
    path.lineTo(0, height_third);
    path.close();
    canvas.drawPath(path, paint);
}

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From source file:org.holoeverywhere.widget.datetimepicker.date.SimpleMonthView.java

/**
 * Draws the week and month day numbers for this week. Override this method
 * if you need different placement.//from w w w .jav a  2  s  .co m
 *
 * @param canvas The canvas to draw on
 */
protected void drawMonthNums(Canvas canvas) {
    int y = (((mRowHeight + MINI_DAY_NUMBER_TEXT_SIZE) / 2) - DAY_SEPARATOR_WIDTH) + MONTH_HEADER_SIZE;
    int dayWidthHalf = (mWidth - mPadding * 2) / (mNumDays * 2);
    int j = findDayOffset();
    for (int dayNumber = 1; dayNumber <= mNumCells; dayNumber++) {
        int x = (2 * j + 1) * dayWidthHalf + mPadding;
        if (mSelectedDay == dayNumber) {
            canvas.drawCircle(x, y - (MINI_DAY_NUMBER_TEXT_SIZE / 3), DAY_SELECTED_CIRCLE_SIZE,
                    mSelectedCirclePaint);
        }

        mMonthNumPaint.setColor(mHasToday && mToday == dayNumber ? mTodayNumberColor : mDayTextColor);
        canvas.drawText(String.format("%d", dayNumber), x, y, mMonthNumPaint);
        j++;
        if (j == mNumDays) {
            j = 0;
            y += mRowHeight;
        }
    }
}

---

From source file:app.android.datetimepicker.date.SimpleMonthView.java

/**
 * Draws the week and month day numbers for this week. Override this method
 * if you need different placement./*from  www .j  a  v  a  2 s  .c  om*/
 *
 * @param canvas The canvas to draw on
 */
protected void drawMonthNums(Canvas canvas) {
    int y = (((mRowHeight + MINI_DAY_NUMBER_TEXT_SIZE) / 2) - DAY_SEPARATOR_WIDTH) + MONTH_HEADER_SIZE;
    int dayWidthHalf = (mWidth - mPadding * 2) / (mNumDays * 2);
    int j = findDayOffset();
    for (int dayNumber = 1; dayNumber <= mNumCells; dayNumber++) {
        int x = (2 * j + 1) * dayWidthHalf + mPadding;
        if (mSelectedDay == dayNumber) {
            canvas.drawCircle(x, y - (MINI_DAY_NUMBER_TEXT_SIZE / 3), DAY_SELECTED_CIRCLE_SIZE,
                    mSelectedCirclePaint);
        }

        if (mHasToday && mToday == dayNumber) {
            mMonthNumPaint.setColor(mTodayNumberColor);
        } else {
            mMonthNumPaint.setColor(mDayTextColor);
        }
        canvas.drawText(String.format("%d", dayNumber), x, y, mMonthNumPaint);
        j++;
        if (j == mNumDays) {
            j = 0;
            y += mRowHeight;
        }
    }
}

---

From source file:android.support.wear.widget.drawer.PageIndicatorView.java

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

    if (mNumberOfPositions > 1) {
        float dotCenterLeft = getPaddingLeft() + (mDotSpacing / 2f);
        float dotCenterTop = getHeight() / 2f;
        canvas.save();/* w ww.j  a v a  2  s  . c  o  m*/
        canvas.translate(dotCenterLeft, dotCenterTop);
        for (int i = 0; i < mNumberOfPositions; i++) {
            if (i == mSelectedPosition) {
                float radius = mDotRadiusSelected + mDotShadowRadius;
                canvas.drawCircle(mDotShadowDx, mDotShadowDy, radius, mDotPaintShadowSelected);
                canvas.drawCircle(0, 0, mDotRadiusSelected, mDotPaintSelected);
            } else {
                float radius = mDotRadius + mDotShadowRadius;
                canvas.drawCircle(mDotShadowDx, mDotShadowDy, radius, mDotPaintShadow);
                canvas.drawCircle(0, 0, mDotRadius, mDotPaint);
            }
            canvas.translate(mDotSpacing, 0);
        }
        canvas.restore();
    }
}

---

From source file:de.dreier.mytargets.features.statistics.StatisticsFragment.java

private void showLineChart() {
    LineData data = getLineChartDataSet();
    if (data == null) {
        return;//w  w  w. j  a  va 2 s .co m
    }
    binding.chartView.getXAxis().setTextSize(10);
    binding.chartView.getXAxis().setTextColor(0xFF848484);
    binding.chartView.getAxisRight().setEnabled(false);
    binding.chartView.getLegend().setEnabled(false);
    binding.chartView.setData(data);
    final Description desc = new Description();
    desc.setText(getString(R.string.average_arrow_score_per_end));
    binding.chartView.setDescription(desc);
    final int maxCeil = (int) Math.ceil(data.getYMax());
    binding.chartView.getAxisLeft().setAxisMaximum(maxCeil);
    binding.chartView.getAxisLeft().setLabelCount(maxCeil);
    binding.chartView.getAxisLeft().setAxisMinimum(0);
    binding.chartView.getXAxis().setDrawGridLines(false);
    binding.chartView.setDoubleTapToZoomEnabled(false);
    if (animate) {
        binding.chartView.animateXY(2000, 2000);
    }
    binding.chartView.setRenderer(new LineChartRenderer(binding.chartView, binding.chartView.getAnimator(),
            binding.chartView.getViewPortHandler()) {
        @Override
        public void drawHighlighted(Canvas canvas, Highlight[] indices) {
            mRenderPaint.setStyle(Paint.Style.FILL);

            List<ILineDataSet> dataSets = mChart.getLineData().getDataSets();

            int colorIndex = 0;
            for (Highlight highlight : indices) {
                int i = highlight.getDataSetIndex();
                ILineDataSet dataSet = dataSets.get(i);

                mRenderPaint.setColor(dataSet.getCircleColor(colorIndex));

                float circleRadius = dataSet.getCircleRadius();

                canvas.drawCircle(highlight.getDrawX(), highlight.getDrawY(), circleRadius, mRenderPaint);
                colorIndex = colorIndex + 1 % dataSet.getCircleColorCount();
            }

            // draws highlight lines (if enabled)
            super.drawHighlighted(canvas, indices);
        }
    });
}

---

From source file:com.android.yijiang.kzx.widget.betterpickers.calendardatepicker.SimpleMonthView.java

/**
 * Draws the week and month day numbers for this week. Override this method if you need different placement.
 *
 * @param canvas The canvas to draw on/*from  ww  w. ja va2  s  . c om*/
 */
protected void drawMonthNums(Canvas canvas) {
    int y = (((mRowHeight + sMiniDayNumberTextSize) / 2) - DAY_SEPARATOR_WIDTH) + sMonthHeaderSize;
    int dayWidthHalf = (mWidth - mPadding * 2) / (mNumDays * 2);
    int j = findDayOffset();
    for (int dayNumber = 1; dayNumber <= mNumCells; dayNumber++) {
        int x = (2 * j + 1) * dayWidthHalf + mPadding;
        if (mSelectedDay == dayNumber) {
            canvas.drawCircle(x, y - (sMiniDayNumberTextSize / 3), sDaySelectedCircleSize,
                    mSelectedCirclePaint);
        }

        if (mHasToday && mToday == dayNumber) {
            mMonthNumPaint.setColor(mTodayNumberColor);
        } else {
            mMonthNumPaint.setColor(mDayTextColor);
        }
        canvas.drawText(String.format("%d", dayNumber), x, y, mMonthNumPaint);
        j++;
        if (j == mNumDays) {
            j = 0;
            y += mRowHeight;
        }
    }
}

---

From source file:io.doist.datetimepicker.date.SimpleMonthView.java

/**
 * Draws the month days.//  w w  w.j  a v  a 2s.c om
 */
private void drawDays(Canvas canvas) {
    int y = (((mRowHeight + mMiniDayNumberTextSize) / 2) - DAY_SEPARATOR_WIDTH) + mMonthHeaderSize;
    int dayWidthHalf = (mWidth - mPadding * 2) / (mNumDays * 2);
    int j = findDayOffset();
    for (int day = 1; day <= mNumCells; day++) {
        int x = (2 * j + 1) * dayWidthHalf + mPadding;
        if (mSelectedDay == day) {
            canvas.drawCircle(x, y - (mMiniDayNumberTextSize / 3), mDaySelectedCircleSize,
                    mDayNumberSelectedPaint);
        }

        if (mHasToday && mToday == day) {
            mDayNumberPaint.setColor(mSelectedDayColor);
        } else {
            mDayNumberPaint.setColor(mNormalTextColor);
        }
        final Paint paint = (day < mEnabledDayStart || day > mEnabledDayEnd) ? mDayNumberDisabledPaint
                : mDayNumberPaint;
        canvas.drawText(String.format("%d", day), x, y, paint);
        j++;
        if (j == mNumDays) {
            j = 0;
            y += mRowHeight;
        }
    }
}

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From source file:com.karthikb351.vitinfo2.customwidget.TimeLineView.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);
    width = getWidth();/*from ww  w  .j a v  a 2 s. c  o m*/
    height = getHeight();
    cx = width / 2;
    cy = PADDING_TOP + CIRCLE_RADIUS;

    switch (widgetState) {
    case STATE_CURRENT:
        rectF.set(cx - BORDER_THICKNESS, cy - BORDER_THICKNESS, cx + BORDER_THICKNESS, cy + BORDER_THICKNESS);
        mPath.reset();
        for (int i = 0; i <= 360; i++) {
            mPath.addArc(rectF, i, 1);
        }
        canvas.drawPath(mPath, paintBorder);
    case STATE_SCHEDULED:
        rectF.set(cx - CIRCLE_RADIUS, cy - CIRCLE_RADIUS, cx + CIRCLE_RADIUS, cy + CIRCLE_RADIUS);
        mPath.reset();
        for (int i = 0; i <= 360; i += 1) {
            mPath.addArc(rectF, i, 1);
        }
        canvas.drawPath(mPath, paintRing);
        break;
    case STATE_FINISHED:
        canvas.drawCircle(cx, cy, CIRCLE_RADIUS, paintDot);
        break;
    }

    switch (widgetType) {
    case TYPE_INITIAL:
        canvas.drawLine(cx, cy + (11 * density), cx, height, paintLine);
        break;
    case TYPE_INNER:
        canvas.drawLine(cx, cy - (11 * density), cx, 0, paintLine);
        canvas.drawLine(cx, cy + (11 * density), cx, height, paintLine);
        break;
    case TYPE_END:
        canvas.drawLine(cx, cy - (11 * density), cx, 0, paintLine);
        break;
    }

}

---

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