Example usage for android.graphics Canvas drawLine

List of usage examples for android.graphics Canvas drawLine

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Introduction

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

Prototype

public void drawLine(float startX, float startY, float stopX, float stopY, @NonNull Paint paint)

Source Link

Document

Draw a line segment with the specified start and stop x,y coordinates, using the specified paint.

Usage

From source file:org.bottiger.podcast.views.SlidingTab.SlidingTabStrip.java

@Override
protected void onDraw(Canvas canvas) {
    final int height = getHeight();
    final int childCount = getChildCount();
    final int dividerHeightPx = (int) (Math.min(Math.max(0f, mDividerHeight), 1f) * height);
    final SlidingTabLayout.TabColorizer tabColorizer = mCustomTabColorizer != null ? mCustomTabColorizer
            : mDefaultTabColorizer;/*from  w  ww  .j  a  v a 2s .c  o  m*/

    // Thick colored underline below the current selection
    if (childCount > 0) {
        View selectedTitle = getChildAt(mSelectedPosition);
        int left = selectedTitle.getLeft();
        int right = selectedTitle.getRight();
        int color = tabColorizer.getIndicatorColor(mSelectedPosition);

        if (mSelectionOffset > 0f && mSelectedPosition < (getChildCount() - 1)) {
            int nextColor = tabColorizer.getIndicatorColor(mSelectedPosition + 1);
            if (color != nextColor) {
                color = blendColors(nextColor, color, mSelectionOffset);
            }

            // Draw the selection partway between the tabs
            View nextTitle = getChildAt(mSelectedPosition + 1);
            left = (int) (mSelectionOffset * nextTitle.getLeft() + (1.0f - mSelectionOffset) * left);
            right = (int) (mSelectionOffset * nextTitle.getRight() + (1.0f - mSelectionOffset) * right);
        }

        mSelectedIndicatorPaint.setColor(color);

        canvas.drawRect(left, height - mSelectedIndicatorThickness, right, height, mSelectedIndicatorPaint);
    }

    // Thin underline along the entire bottom edge
    canvas.drawRect(0, height - mBottomBorderThickness, getWidth(), height, mBottomBorderPaint);

    // Vertical separators between the titles
    int separatorTop = (height - dividerHeightPx) / 2;
    for (int i = 0; i < childCount - 1; i++) {
        View child = getChildAt(i);
        mDividerPaint.setColor(tabColorizer.getDividerColor(i));
        canvas.drawLine(child.getRight(), separatorTop, child.getRight(), separatorTop + dividerHeightPx,
                mDividerPaint);
    }
}

From source file:com.collcloud.frame.viewpager.PagerSlidingTabStrip.java

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

    if (isInEditMode() || tabCount == 0) {
        return;/*from   w ww  .  j av a 2 s .  com*/
    }

    final int height = getHeight();

    // draw underline

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

    // 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 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:info.bartowski.easteregg.MLand.java

@Override
public void onDraw(Canvas c) {
    super.onDraw(c);

    if (SHOW_TOUCHES) {
        for (Player p : mPlayers) {
            if (p.mTouchX > 0) {
                mTouchPaint.setColor(0x80FFFFFF & p.color);
                mPlayerTracePaint.setColor(0x80FFFFFF & p.color);
                float x1 = p.mTouchX;
                float y1 = p.mTouchY;
                c.drawCircle(x1, y1, 100, mTouchPaint);
                float x2 = p.getX() + p.getPivotX();
                float y2 = p.getY() + p.getPivotY();
                float angle = PI_2 - (float) Math.atan2(x2 - x1, y2 - y1);
                x1 += 100 * Math.cos(angle);
                y1 += 100 * Math.sin(angle);
                c.drawLine(x1, y1, x2, y2, mPlayerTracePaint);
            }/*from  ww  w. j a  va2s  . co  m*/
        }
    }

    if (!DEBUG_DRAW)
        return;

    final Paint pt = new Paint();
    pt.setColor(0xFFFFFFFF);
    for (Player p : mPlayers) {
        final int L = p.corners.length;
        final int N = L / 2;
        for (int i = 0; i < N; i++) {
            final int x = (int) p.corners[i * 2];
            final int y = (int) p.corners[i * 2 + 1];
            c.drawCircle(x, y, 4, pt);
            c.drawLine(x, y, p.corners[(i * 2 + 2) % L], p.corners[(i * 2 + 3) % L], pt);
        }
    }

    pt.setStyle(Paint.Style.STROKE);
    pt.setStrokeWidth(getResources().getDisplayMetrics().density);

    final int M = getChildCount();
    pt.setColor(0x8000FF00);
    for (int i = 0; i < M; i++) {
        final View v = getChildAt(i);
        if (v instanceof Player)
            continue;
        if (!(v instanceof GameView))
            continue;
        if (v instanceof Pop) {
            final Pop pop = (Pop) v;
            c.drawCircle(pop.cx, pop.cy, pop.r, pt);
        } else {
            final Rect r = new Rect();
            v.getHitRect(r);
            c.drawRect(r, pt);
        }
    }

    pt.setColor(Color.BLACK);
    final StringBuilder sb = new StringBuilder("obstacles: ");
    for (Obstacle ob : mObstaclesInPlay) {
        sb.append(ob.hitRect.toShortString());
        sb.append(" ");
    }
    pt.setTextSize(20f);
    c.drawText(sb.toString(), 20, 100, pt);
}

From source file:com.danielhan.neteasenews.customview.PagerSlidingTabStrip.java

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

    if (isInEditMode() || tabCount == 0) {
        return;//from  www  . j ava  2s  .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 + indicatorPaddingLeftRight, height - indicatorHeight,
            lineRight - indicatorPaddingLeftRight, 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);
    }
}

From source file:net.droidsolutions.droidcharts.core.renderer.xy.AbstractXYItemRenderer.java

/**
 * Draws a line perpendicular to the range axis.
 *
 * @param g2  the graphics device.//from  ww  w .ja  va2  s . co  m
 * @param plot  the plot.
 * @param axis  the value axis.
 * @param dataArea  the area for plotting data (not yet adjusted for any 3D
 *                  effect).
 * @param value  the value at which the grid line should be drawn.
 * @param paint  the paint.
 * @param stroke  the stroke.
 */
public void drawRangeLine(Canvas g2, XYPlot plot, ValueAxis axis, Rectangle2D dataArea, double value,
        Paint paint, Float stroke) {

    Range range = axis.getRange();
    if (!range.contains(value)) {
        return;
    }

    PlotOrientation orientation = plot.getOrientation();
    Line2D line = null;
    double v = axis.valueToJava2D(value, dataArea, plot.getRangeAxisEdge());
    if (orientation == PlotOrientation.HORIZONTAL) {
        line = new Line2D.Double(v, dataArea.getMinY(), v, dataArea.getMaxY());
    } else if (orientation == PlotOrientation.VERTICAL) {
        line = new Line2D.Double(dataArea.getMinX(), v, dataArea.getMaxX(), v);
    }

    paint.setStyle(Paint.Style.STROKE);
    paint.setStrokeWidth(stroke);

    g2.drawLine((float) line.getX1(), (float) line.getY1(), (float) line.getX2(), (float) line.getY2(), paint);

}

From source file:net.droidsolutions.droidcharts.core.renderer.xy.AbstractXYItemRenderer.java

/**
 * Draws a line perpendicular to the domain axis.
 *
 * @param g2  the graphics device./*from w  ww  .  ja  v a 2  s.c o m*/
 * @param plot  the plot.
 * @param axis  the value axis.
 * @param dataArea  the area for plotting data (not yet adjusted for any 3D
 *                  effect).
 * @param value  the value at which the grid line should be drawn.
 * @param paint  the paint (<code>null</code> not permitted).
 * @param stroke  the stroke (<code>null</code> not permitted).
 *
 * @since 1.0.5
 */
public void drawDomainLine(Canvas g2, XYPlot plot, ValueAxis axis, Rectangle2D dataArea, double value,
        Paint paint, Float stroke) {

    Range range = axis.getRange();
    if (!range.contains(value)) {
        return;
    }

    PlotOrientation orientation = plot.getOrientation();
    Line2D line = null;
    double v = axis.valueToJava2D(value, dataArea, plot.getDomainAxisEdge());
    if (orientation == PlotOrientation.HORIZONTAL) {
        line = new Line2D.Double(dataArea.getMinX(), v, dataArea.getMaxX(), v);
    } else if (orientation == PlotOrientation.VERTICAL) {
        line = new Line2D.Double(v, dataArea.getMinY(), v, dataArea.getMaxY());
    }

    paint.setStyle(Paint.Style.STROKE);
    paint.setStrokeWidth(stroke);

    g2.drawLine((float) line.getX1(), (float) line.getY1(), (float) line.getX2(), (float) line.getY2(), paint);

}

From source file:com.common.view.tab.PagerSlidingTabStrip.java

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

    if (isInEditMode() || tabCount == 0) {
        return;//from   ww  w  .j  av 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 underline

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

    // draw divider

    dividerPaint.setColor(dividerColor);
    if (dividerWidth != 0)
        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:com.ymt.demo1.customViews.widget.PagerSlidingTabStrip.java

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

    if (isInEditMode() || tabCount == 0) {
        return;/*from ww w  .ja  v a 2s .  co 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);
    }

    //
    RectF rectF = new RectF(lineLeft + 28, 28, lineRight - 28, height - 28);
    canvas.drawRoundRect(rectF, 45, 45, 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);
    }
}

From source file:com.sunrun.sunrunframwork.view.PagerSlidingTabStrip.java

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

    if (isInEditMode() || tabCount == 0) {
        return;/*from  ww w.j av a  2 s  .  c om*/
    }

    final int height = getHeight();

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

    // 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 + getIndicatorPaddingLeft(), height - indicatorHeight,
            lineRight - getIndicatorPaddingRight(), 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:org.pimatic.app.PagerSlidingTabStrip.java

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

    if (isInEditMode() || tabCount == 0) {
        return;/* w  w w .j ava2s.  c  o  m*/
    }

    final int height = getHeight();

    // draw indicator line

    rectPaint.setColor(indicatorColor);

    // default: line below current tab
    View currentTab = tabsContainer.getChildAt(currentPosition);
    if (currentTab == null) {
        return;
    }

    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 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);
    }
}