@Override
public void draw(Canvas canvas) {
Rect bounds = getBounds();
paint.setColor(COLOR_LIGHT);
int width = bounds.width() - STROKE_WIDTH;
int height = bounds.height() - STROKE_WIDTH;
canvas.drawPath(createLightPath(width, height), paint);
paint.setColor(COLOR_DARK);
canvas.drawPath(createDarkPath(width, height), paint);
}
private void drawBrightnessIndicator(Canvas canvas) {
// get a representation of the height of the indicator within the bar
float brightnessHeight = mNewColor[2] * mWheel.getHeight();
// Log.d(TAG, String.format("Brightness height: %f", brightnessHeight));
// convert the height to an absolute y position based on the bar's position
float absoluteY = mWheelPosition.y + mWheel.getHeight() - brightnessHeight;
// get the y value "above" the x axis for the x coordinate calculation
// note: because of symmetry, the sign doesn't matter so we'll use the positive
float heightAboveXAxis = Math.abs(brightnessHeight - (float) mRadius);
// Log.d(TAG, String.format("Height above X: %f", heightAboveXAxis));
float leftEdgeRadius = (float) (mRadius + SPACE_BETWEEN_WHEEL_AND_BAR);
float rightEdgeRadius = leftEdgeRadius + ARC_WIDTH;
// get the x coordinate relative to the center of the wheel
float leftXInCircle =
(float) Math.sqrt(leftEdgeRadius * leftEdgeRadius - heightAboveXAxis * heightAboveXAxis);
float rightXInCircle =
(float) Math.sqrt(rightEdgeRadius * rightEdgeRadius - heightAboveXAxis * heightAboveXAxis);
// get the absolute x and y coordinates of the left edge of the bar at the bar height
float leftX = mWheelCenter.x + leftXInCircle;
float rightX = mWheelCenter.x + rightXInCircle;
float indicatorHeight = BRIGHTNESS_INDICATOR_SIZE / 2.0f;
float indicatorWidth = BRIGHTNESS_INDICATOR_SIZE;
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setStrokeWidth(1.0f);
Path leftTrianglePath = new Path();
leftTrianglePath.moveTo(leftX, absoluteY - indicatorHeight);
leftTrianglePath.lineTo(leftX + indicatorWidth, absoluteY);
leftTrianglePath.lineTo(leftX, absoluteY + indicatorHeight);
leftTrianglePath.close();
paint.setColor(Color.BLUE);
paint.setStyle(Paint.Style.FILL);
canvas.drawPath(leftTrianglePath, paint);
paint.setColor(Color.WHITE);
paint.setStyle(Paint.Style.STROKE);
canvas.drawPath(leftTrianglePath, paint);
Path rightTrianglePath = new Path();
rightTrianglePath.moveTo(rightX, absoluteY - indicatorHeight);
rightTrianglePath.lineTo(rightX - indicatorWidth, absoluteY);
rightTrianglePath.lineTo(rightX, absoluteY + indicatorHeight);
rightTrianglePath.close();
paint.setColor(Color.BLUE);
paint.setStyle(Paint.Style.FILL);
canvas.drawPath(rightTrianglePath, paint);
paint.setColor(Color.WHITE);
paint.setStyle(Paint.Style.STROKE);
canvas.drawPath(rightTrianglePath, paint);
}
@Override
protected void onDraw(Canvas canvas) {
// draw the background and color wheel
canvas.drawBitmap(mBackground, mBackgroundPosition.x, mBackgroundPosition.y, null);
canvas.drawBitmap(mWheel, mWheelPosition.x, mWheelPosition.y, null);
// setup paint for the gradient filling
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setStyle(Paint.Style.FILL);
paint.setStrokeWidth(2.0f);
// create a shader that will show the range of brightness settings
float[] gradientStartColor = new float[3];
float[] gradientEndColor = new float[3];
System.arraycopy(mNewColor, 0, gradientStartColor, 0, mNewColor.length);
System.arraycopy(mNewColor, 0, gradientEndColor, 0, mNewColor.length);
gradientStartColor[2] = 1.0f;
gradientEndColor[2] = 0.0f;
Shader gradientShader =
new LinearGradient(
(float) (mWheelPosition.x + mRadius),
mWheelPosition.y,
mOuterArcRect.right,
mWheelPosition.y + mWheel.getHeight(),
Color.HSVToColor(gradientStartColor),
Color.HSVToColor(gradientEndColor),
Shader.TileMode.MIRROR);
paint.setShader(gradientShader);
canvas.drawPath(mArcPath, paint);
drawHSCrosshairs(canvas);
drawBrightnessIndicator(canvas);
}
private void touch_up() {
mPath.lineTo(mX, mY);
// commit the path to our offscreen
mCanvas.drawPath(mPath, mPaint);
// kill this so we don't double draw
mPath.reset();
}
// ==============================================================================
public final int[] renderGlyph(
char glyph, Paint paint, android.graphics.Matrix matrix, Rect bounds) {
Path p = new Path();
paint.getTextPath(String.valueOf(glyph), 0, 1, 0.0f, 0.0f, p);
RectF boundsF = new RectF();
p.computeBounds(boundsF, true);
matrix.mapRect(boundsF);
boundsF.roundOut(bounds);
bounds.left--;
bounds.right++;
final int w = bounds.width();
final int h = bounds.height();
Bitmap bm = Bitmap.createBitmap(w, h, Bitmap.Config.ARGB_8888);
Canvas c = new Canvas(bm);
matrix.postTranslate(-bounds.left, -bounds.top);
c.setMatrix(matrix);
c.drawPath(p, paint);
final int sizeNeeded = w * h;
if (cachedRenderArray.length < sizeNeeded) cachedRenderArray = new int[sizeNeeded];
bm.getPixels(cachedRenderArray, 0, w, 0, 0, w, h);
bm.recycle();
return cachedRenderArray;
}
public void onDraw(Canvas canvas) {
// 검정색 배경으로 지운다. 빈 화면이면 지우기만 하고 리턴
canvas.drawColor(Color.BLACK);
if (status == BLANK) {
return;
}
// 도형 목록을 순회하면서 도형 정보대로 출력한다.
int idx;
for (idx = 0; idx < arShape.size(); idx++) {
Paint Pnt = new Paint();
Pnt.setAntiAlias(true);
Pnt.setColor(arShape.get(idx).color);
Rect rt = arShape.get(idx).rt;
switch (arShape.get(idx).what) {
case Shape.RECT:
canvas.drawRect(rt, Pnt);
break;
case Shape.CIRCLE:
canvas.drawCircle(
rt.left + rt.width() / 2, rt.top + rt.height() / 2, rt.width() / 2, Pnt);
break;
case Shape.TRIANGLE:
Path path = new Path();
path.moveTo(rt.left + rt.width() / 2, rt.top);
path.lineTo(rt.left, rt.bottom);
path.lineTo(rt.right, rt.bottom);
canvas.drawPath(path, Pnt);
break;
}
}
}
@Override
protected void onDraw(Canvas canvas) {
canvas.drawColor(Color.LTGRAY);
canvas.drawBitmap(mBitmap, 0, 0, mBitmapPaint);
canvas.drawPath(mPath, mPaint);
}
private void drawRightUp(Canvas canvas) {
Path path = new Path();
path.moveTo(getWidth(), roundHeight);
path.lineTo(getWidth(), 0);
path.lineTo(getWidth() - roundWidth, 0);
path.arcTo(new RectF(getWidth() - roundWidth * 2, 0, getWidth(), 0 + roundHeight * 2), -90, 90);
path.close();
canvas.drawPath(path, paint);
}
private void drawLiftDown(Canvas canvas) {
Path path = new Path();
path.moveTo(0, getHeight() - roundHeight);
path.lineTo(0, getHeight());
path.lineTo(roundWidth, getHeight());
path.arcTo(new RectF(0, getHeight() - roundHeight * 2, 0 + roundWidth * 2, getWidth()), 90, 90);
path.close();
canvas.drawPath(path, paint);
}
private void drawLiftUp(Canvas canvas) {
Path path = new Path();
path.moveTo(0, roundHeight);
path.lineTo(0, 0);
path.lineTo(roundWidth, 0);
path.arcTo(new RectF(0, 0, roundWidth * 2, roundHeight * 2), -90, -90);
path.close();
canvas.drawPath(path, paint);
}
void myDraw() {
float width, height;
width = getMeasuredWidth();
height = getMeasuredHeight();
canvas = holder.lockCanvas();
canvas.drawColor(Color.GREEN);
canvas.drawPath(path, paint);
holder.unlockCanvasAndPost(canvas);
}
@Override
void doDraw(Canvas canvas, Paint paint) {
if (!mPath.isEmpty()) {
paint.setStyle(Paint.Style.FILL);
int color = blendColors(mStartColor, mEndColor, mCurrentScale);
paint.setColor(color);
canvas.drawPath(mPath, paint);
}
}
@Override
protected void onDraw(Canvas canvas) {
canvas.drawColor(
(props.containsKeyAndNotNull(TiC.PROPERTY_BACKGROUND_COLOR))
? TiConvert.toColor(props, TiC.PROPERTY_BACKGROUND_COLOR)
: TiConvert.toColor("transparent"));
canvas.drawBitmap(tiBitmap, 0, 0, tiBitmapPaint);
canvas.drawPath(tiPath, tiPaint);
}
/**
* 画X，Y轴和边框
*
* @param canvas
*/
private void drawAxesLine(Canvas canvas) {
XYpaint = new Paint();
XYpaint.setColor(axesLineColor);
XYpaint.setAntiAlias(true);
XYpaint.setStyle(Style.FILL_AND_STROKE);
XYpaint.setStrokeWidth(chartFrameLineSize);
// 左侧Y轴
canvas.drawLine(
leftPadding + yTextWidth,
topPadding + topTextHeight,
leftPadding + yTextWidth,
height - bottomPadding - xTextHeight,
XYpaint);
// 三角箭头
Path yTriangle = new Path();
yTriangle.moveTo(leftPadding + yTextWidth - 10, topPadding + topTextHeight);
yTriangle.lineTo(leftPadding + yTextWidth, topPadding + topTextHeight - 20);
yTriangle.lineTo(leftPadding + yTextWidth + 10, topPadding + topTextHeight);
yTriangle.close();
canvas.drawPath(yTriangle, XYpaint);
// 下方X轴
canvas.drawLine(
leftPadding + yTextWidth,
height - bottomPadding - xTextHeight,
width - rightPadding,
height - bottomPadding - xTextHeight,
XYpaint);
// 三角箭头
Path xTriangle = new Path();
xTriangle.moveTo(width - rightPadding, height - bottomPadding - xTextHeight + 10);
xTriangle.lineTo(width - rightPadding + 15, height - bottomPadding - xTextHeight);
xTriangle.lineTo(width - rightPadding, height - bottomPadding - xTextHeight - 10);
xTriangle.close();
canvas.drawPath(xTriangle, XYpaint);
// 上方封顶
// canvas.drawLine(leftPadding + xTextHeight, topPadding + topTextHeight, width - rightPadding,
// topPadding + topTextHeight, XYpaint);
// 右侧封边
// canvas.drawLine(width - rightPadding, topPadding + topTextHeight, width - rightPadding,
// height - bottomPadding - xTextHeight, XYpaint);
}
public void fillPolygon(int[] xps, int yps[], int c) {
path = new Path();
int x;
int y;
for (int n = 0; n < c; n++) {
x = xps[n];
y = yps[n];
if (n == 0) path.moveTo(x, y);
else path.lineTo(x, y);
}
canvas.drawPath(path, paint);
}
/**
* Draw a curvy stem tail. This is only used for single chords, not chord pairs.
*
* @param ytop The y location (in pixels) where the top of the staff starts.
* @param topstaff The note at the top of the staff.
*/
private void DrawCurvyStem(Canvas canvas, Paint paint, int ytop, WhiteNote topstaff) {
Path bezierPath;
paint.setStrokeWidth(2);
int xstart = 0;
if (side == LeftSide) xstart = SheetMusic.LineSpace / 4 + 1;
else xstart = SheetMusic.LineSpace / 4 + SheetMusic.NoteWidth;
if (direction == Up) {
int ystem = ytop + topstaff.Dist(end) * SheetMusic.NoteHeight / 2;
if (duration == NoteDuration.Eighth
|| duration == NoteDuration.DottedEighth
|| duration == NoteDuration.Triplet
|| duration == NoteDuration.Sixteenth
|| duration == NoteDuration.ThirtySecond) {
bezierPath = new Path();
bezierPath.moveTo(xstart, ystem);
bezierPath.cubicTo(
xstart,
ystem + 3 * SheetMusic.LineSpace / 2,
xstart + SheetMusic.LineSpace * 2,
ystem + SheetMusic.NoteHeight * 2,
xstart + SheetMusic.LineSpace / 2,
ystem + SheetMusic.NoteHeight * 3);
canvas.drawPath(bezierPath, paint);
}
ystem += SheetMusic.NoteHeight;
if (duration == NoteDuration.Sixteenth || duration == NoteDuration.ThirtySecond) {
bezierPath = new Path();
bezierPath.moveTo(xstart, ystem);
bezierPath.cubicTo(
xstart,
ystem + 3 * SheetMusic.LineSpace / 2,
xstart + SheetMusic.LineSpace * 2,
ystem + SheetMusic.NoteHeight * 2,
xstart + SheetMusic.LineSpace / 2,
ystem + SheetMusic.NoteHeight * 3);
canvas.drawPath(bezierPath, paint);
}
ystem += SheetMusic.NoteHeight;
if (duration == NoteDuration.ThirtySecond) {
bezierPath = new Path();
bezierPath.moveTo(xstart, ystem);
bezierPath.cubicTo(
xstart,
ystem + 3 * SheetMusic.LineSpace / 2,
xstart + SheetMusic.LineSpace * 2,
ystem + SheetMusic.NoteHeight * 2,
xstart + SheetMusic.LineSpace / 2,
ystem + SheetMusic.NoteHeight * 3);
canvas.drawPath(bezierPath, paint);
}
} else if (direction == Down) {
int ystem = ytop + topstaff.Dist(end) * SheetMusic.NoteHeight / 2 + SheetMusic.NoteHeight;
if (duration == NoteDuration.Eighth
|| duration == NoteDuration.DottedEighth
|| duration == NoteDuration.Triplet
|| duration == NoteDuration.Sixteenth
|| duration == NoteDuration.ThirtySecond) {
bezierPath = new Path();
bezierPath.moveTo(xstart, ystem);
bezierPath.cubicTo(
xstart,
ystem - SheetMusic.LineSpace,
xstart + SheetMusic.LineSpace * 2,
ystem - SheetMusic.NoteHeight * 2,
xstart + SheetMusic.LineSpace,
ystem - SheetMusic.NoteHeight * 2 - SheetMusic.LineSpace / 2);
canvas.drawPath(bezierPath, paint);
}
ystem -= SheetMusic.NoteHeight;
if (duration == NoteDuration.Sixteenth || duration == NoteDuration.ThirtySecond) {
bezierPath = new Path();
bezierPath.moveTo(xstart, ystem);
bezierPath.cubicTo(
xstart,
ystem - SheetMusic.LineSpace,
xstart + SheetMusic.LineSpace * 2,
ystem - SheetMusic.NoteHeight * 2,
xstart + SheetMusic.LineSpace,
ystem - SheetMusic.NoteHeight * 2 - SheetMusic.LineSpace / 2);
canvas.drawPath(bezierPath, paint);
}
ystem -= SheetMusic.NoteHeight;
if (duration == NoteDuration.ThirtySecond) {
bezierPath = new Path();
bezierPath.moveTo(xstart, ystem);
bezierPath.cubicTo(
xstart,
ystem - SheetMusic.LineSpace,
xstart + SheetMusic.LineSpace * 2,
ystem - SheetMusic.NoteHeight * 2,
xstart + SheetMusic.LineSpace,
ystem - SheetMusic.NoteHeight * 2 - SheetMusic.LineSpace / 2);
canvas.drawPath(bezierPath, paint);
}
}
paint.setStrokeWidth(1);
}
@Override
public void startElement(String namespaceURI, String localName, String qName, Attributes atts)
throws SAXException {
// Reset paint opacity
paint.setAlpha(255);
// Ignore everything but rectangles in bounds mode
if (boundsMode) {
if (localName.equals("rect")) {
Float x = getFloatAttr("x", atts);
if (x == null) {
x = 0f;
}
Float y = getFloatAttr("y", atts);
if (y == null) {
y = 0f;
}
Float width = getFloatAttr("width", atts);
Float height = getFloatAttr("height", atts);
bounds = new RectF(x, y, x + width, y + height);
}
return;
}
if (localName.equals("svg")) {
int width = (int) Math.ceil(getFloatAttr("width", atts));
int height = (int) Math.ceil(getFloatAttr("height", atts));
canvas = picture.beginRecording(width, height);
} else if (localName.equals("defs")) {
// Ignore
} else if (localName.equals("linearGradient")) {
gradient = doGradient(true, atts);
} else if (localName.equals("radialGradient")) {
gradient = doGradient(false, atts);
} else if (localName.equals("stop")) {
if (gradient != null) {
float offset = getFloatAttr("offset", atts);
String styles = getStringAttr("style", atts);
StyleSet styleSet = new StyleSet(styles);
String colorStyle = styleSet.getStyle("stop-color");
int color = Color.BLACK;
if (colorStyle != null) {
if (colorStyle.startsWith("#")) {
color = Integer.parseInt(colorStyle.substring(1), 16);
} else {
color = Integer.parseInt(colorStyle, 16);
}
}
String opacityStyle = styleSet.getStyle("stop-opacity");
if (opacityStyle != null) {
float alpha = Float.parseFloat(opacityStyle);
int alphaInt = Math.round(255 * alpha);
color |= (alphaInt << 24);
} else {
color |= 0xFF000000;
}
gradient.positions.add(offset);
gradient.colors.add(color);
}
} else if (localName.equals("g")) {
// Check to see if this is the "bounds" layer
if ("bounds".equalsIgnoreCase(getStringAttr("id", atts))) {
boundsMode = true;
}
if (hidden) {
hiddenLevel++;
// Util.debug("Hidden up: " + hiddenLevel);
}
// Go in to hidden mode if display is "none"
if ("none".equals(getStringAttr("display", atts))) {
if (!hidden) {
hidden = true;
hiddenLevel = 1;
// Util.debug("Hidden up: " + hiddenLevel);
}
}
pushTransform(atts);
} else if (!hidden && localName.equals("rect")) {
Float x = getFloatAttr("x", atts);
if (x == null) {
x = 0f;
}
Float y = getFloatAttr("y", atts);
if (y == null) {
y = 0f;
}
Float width = getFloatAttr("width", atts);
Float height = getFloatAttr("height", atts);
Float rx = getFloatAttr("rx", atts);
Float ry = getFloatAttr("ry", atts);
if (rx == null) {
if (ry == null) rx = ry = 0f;
else rx = ry;
} else {
if (ry == null) ry = rx;
}
if (rx > width / 2) rx = width * 0.5f;
if (ry > height / 2) ry = height * 0.5f;
pushTransform(atts);
Properties props = new Properties(atts);
if (doFill(props, gradientMap)) {
doLimits(x, y, width, height);
if (rx > 0 && ry > 0)
canvas.drawRoundRect(new RectF(x, y, x + width, y + height), rx, ry, paint);
else canvas.drawRect(x, y, x + width, y + height, paint);
}
if (doStroke(props, gradientMap)) {
if (rx > 0 && ry > 0)
canvas.drawRoundRect(new RectF(x, y, x + width, y + height), rx, ry, paint);
else canvas.drawRect(x, y, x + width, y + height, paint);
}
popTransform();
} else if (!hidden && localName.equals("line")) {
Float x1 = getFloatAttr("x1", atts);
Float x2 = getFloatAttr("x2", atts);
Float y1 = getFloatAttr("y1", atts);
Float y2 = getFloatAttr("y2", atts);
Properties props = new Properties(atts);
if (doStroke(props, gradientMap)) {
pushTransform(atts);
doLimits(x1, y1);
doLimits(x2, y2);
canvas.drawLine(x1, y1, x2, y2, paint);
popTransform();
}
} else if (!hidden && localName.equals("circle")) {
Float centerX = getFloatAttr("cx", atts);
Float centerY = getFloatAttr("cy", atts);
Float radius = getFloatAttr("r", atts);
if (centerX != null && centerY != null && radius != null) {
pushTransform(atts);
Properties props = new Properties(atts);
if (doFill(props, gradientMap)) {
doLimits(centerX - radius, centerY - radius);
doLimits(centerX + radius, centerY + radius);
canvas.drawCircle(centerX, centerY, radius, paint);
}
if (doStroke(props, gradientMap)) {
canvas.drawCircle(centerX, centerY, radius, paint);
}
popTransform();
}
} else if (!hidden && localName.equals("ellipse")) {
Float centerX = getFloatAttr("cx", atts);
Float centerY = getFloatAttr("cy", atts);
Float radiusX = getFloatAttr("rx", atts);
Float radiusY = getFloatAttr("ry", atts);
if (centerX != null && centerY != null && radiusX != null && radiusY != null) {
pushTransform(atts);
Properties props = new Properties(atts);
rect.set(centerX - radiusX, centerY - radiusY, centerX + radiusX, centerY + radiusY);
if (doFill(props, gradientMap)) {
doLimits(centerX - radiusX, centerY - radiusY);
doLimits(centerX + radiusX, centerY + radiusY);
canvas.drawOval(rect, paint);
}
if (doStroke(props, gradientMap)) {
canvas.drawOval(rect, paint);
}
popTransform();
}
} else if (!hidden && (localName.equals("polygon") || localName.equals("polyline"))) {
NumberParse numbers = getNumberParseAttr("points", atts);
if (numbers != null) {
Path p = new Path();
ArrayList<Float> points = numbers.numbers;
if (points.size() > 1) {
pushTransform(atts);
Properties props = new Properties(atts);
p.moveTo(points.get(0), points.get(1));
for (int i = 2; i < points.size(); i += 2) {
float x = points.get(i);
float y = points.get(i + 1);
p.lineTo(x, y);
}
// Don't close a polyline
if (localName.equals("polygon")) {
p.close();
}
if (doFill(props, gradientMap)) {
doLimits(p);
canvas.drawPath(p, paint);
}
if (doStroke(props, gradientMap)) {
canvas.drawPath(p, paint);
}
popTransform();
}
}
} else if (!hidden && localName.equals("path")) {
Path p = doPath(getStringAttr("d", atts));
pushTransform(atts);
Properties props = new Properties(atts);
if (doFill(props, gradientMap)) {
doLimits(p);
canvas.drawPath(p, paint);
}
if (doStroke(props, gradientMap)) {
canvas.drawPath(p, paint);
}
popTransform();
} else if (!hidden) {
// Log.d(TAG, "UNRECOGNIZED SVG COMMAND: " + localName);
}
}
/** 绘画 */
@Override
public void onDraw(Canvas canvas) {
super.onDraw(canvas);
// Log.v(TAG, "onDraw()");
vWidth = getWidth();
vHeight = getHeight();
// Log.v(TAG, vWidth + "--" + vHeight);
// 中心
vLenght = vWidth / 2;
// 弧度
double randian30 = 30 * Math.PI / 180; // Math.PI 圆周长和直径比值
a = (float) (vLenght * Math.sin(randian30));
b = (float) (vLenght * Math.cos(randian30));
c = (vHeight - 2 * b) / 2;
// 画笔初始化
if (paint == null) {
paint = new Paint();
// 去锯齿
paint.setAntiAlias(true);
paint.setStyle(Style.FILL);
paint.setColor(backColor);
paint.setAlpha(100);
} else {
paint.setStyle(Style.FILL);
paint.setColor(backColor);
paint.setAlpha(100);
}
if (paint1 == null) {
paint1 = new Paint();
// 去锯齿
paint1.setAntiAlias(true);
// 重设画笔颜色
paint1.setColor(textColor);
// 根据视图大小自动控制字体大小
if (textSize == -1) {
if (src == null) {
textSize = vWidth >= vHeight ? vHeight - 120 : vWidth - 120;
if (textSize < 5) {
textSize = 20;
}
} else {
textSize = 24;
}
}
paint1.setTextSize(textSize);
// 画笔水平居中
paint1.setTextAlign(Align.CENTER);
}
// 画六边形
Path path = new Path();
path.moveTo(vWidth, vHeight / 2);
path.lineTo(vWidth - a, vHeight - c);
path.lineTo(vWidth - a - vLenght, vHeight - c);
path.lineTo(0, vHeight / 2);
path.lineTo(a, c);
path.lineTo(vWidth - a, c);
path.close();
// 画图形
canvas.drawPath(path, paint);
// 画图片
if (src != null) {
// paint.setAlpha(255);
// 从Drawable中获取Bitmap
BitmapDrawable bitmapD = (BitmapDrawable) src;
Bitmap bitmap = bitmapD.getBitmap();
// 画背景图片,矩阵
// Matrix matrix = new Matrix();
// 转换矩阵，定位xy
// matrix.postTranslate(vWidth / 2 - bitmap.getWidth() / 2, vHeight
// / 2 - bitmap.getHeight() / 2);
// 生成正六边形
mDrawable = new ShapeDrawable(new PathShape(path, vWidth, vHeight));
Shader aShader =
new BitmapShader(
zoomBitmap(bitmap, vWidth, vHeight), Shader.TileMode.REPEAT, Shader.TileMode.REPEAT);
mDrawable.getPaint().setShader(aShader); // 填充位图
mDrawable.setBounds(0, 0, vWidth, vHeight); // 设置边界尺寸
mDrawable.draw(canvas);
// 绘制图片
// canvas.drawBitmap(bitmap, matrix, paint);
}
if (text != null) {
// 计算文字高度,处理垂直居中
FontMetrics fontMetrics = paint1.getFontMetrics();
// 计算文字高度
float fontHeight = fontMetrics.bottom - fontMetrics.top;
// 画字体
if (src != null) { // 如果有图片文字在底部
// Log.v(TAG, "src not null!");
canvas.drawText(text, vWidth / 2, 2 * b + c - 3, paint1);
} else { // 没有图片时文字居于视图中央
float textBaseY = vHeight - (vHeight - fontHeight) / 2 - fontMetrics.bottom;
canvas.drawText(text, vWidth / 2, textBaseY, paint1);
}
}
// 六边形顶点位置
if (list == null) {
list = new ArrayList<PointF>();
} else {
list.clear();
}
PointF pf = new PointF();
pf.set(vWidth, vHeight / 2);
list.add(pf);
PointF pf1 = new PointF();
pf1.set(vWidth - a, vHeight - c);
list.add(pf1);
PointF pf2 = new PointF();
pf2.set(vWidth - a - vLenght, vHeight - c);
list.add(pf2);
PointF pf3 = new PointF();
pf3.set(0, vHeight / 2);
list.add(pf3);
PointF pf4 = new PointF();
pf4.set(a, c);
list.add(pf4);
PointF pf5 = new PointF();
pf5.set(vWidth - a, c);
list.add(pf5);
lasso = LassoUtils.getInstance();
lasso.setLassoList(list);
if (pf != null) {
pf = null;
pf1 = null;
pf2 = null;
pf3 = null;
pf4 = null;
pf5 = null;
}
}
/**
* 画折线图，网格竖线，X坐标值
*
* @param canvas
*/
private void drawChartLine(Canvas canvas) {
Paint paintChart = new Paint();
paintChart.setColor(chartLineColor);
paintChart.setAntiAlias(true);
paintChart.setStyle(Style.STROKE);
paintChart.setStrokeWidth(chartLineSize);
Paint paintGrid = new Paint();
paintGrid.setColor(gridLineColor);
paintGrid.setAntiAlias(true);
paintGrid.setStyle(Style.STROKE);
paintGrid.setStrokeWidth(gridLineSize);
Paint paintTopText = new Paint();
paintTopText.setColor(axesLineColor);
paintTopText.setAntiAlias(true);
paintTopText.setSubpixelText(true);
paintTopText.setTypeface(Typeface.MONOSPACE);
paintTopText.setTextSize(topTextSize);
paintTopText.setTextAlign(Align.CENTER);
Paint paintBottomText = new Paint();
paintBottomText.setColor(axesLineColor);
paintBottomText.setAntiAlias(true);
paintBottomText.setSubpixelText(true);
paintBottomText.setTypeface(Typeface.MONOSPACE);
paintBottomText.setTextSize(bottomTextSize);
paintBottomText.setTextAlign(Align.CENTER);
Paint paintPoint = new Paint();
paintPoint.setColor(pointColor);
paintPoint.setAntiAlias(true);
paintPoint.setStyle(Style.FILL);
pressedPaint = new Paint();
pressedPaint.setColor(pressedColor);
pressedPaint.setAntiAlias(true);
pressedPaint.setStyle(Style.FILL);
Paint paintShape = new Paint();
paintShape.setStyle(Style.FILL);
paintShape.setColor(shapeColor);
paintShape.setAlpha(shapeAlpha);
if (axesData.size() > 0) {
for (int i = 0; i < axesData.size(); i++) {
if (i < axesData.size() - 1) {
// 画折线
canvas.drawLine(
axesData.get(i).X,
axesData.get(i).Y,
axesData.get(i + 1).X,
axesData.get(i + 1).Y,
paintChart);
if (isShapeShow) {
// 画阴影
Path path = new Path();
path.moveTo(axesData.get(i).X, height - bottomPadding - xTextHeight);
path.lineTo(axesData.get(i).X, axesData.get(i).Y + chartLineSize / 2);
path.lineTo(axesData.get(i + 1).X, axesData.get(i + 1).Y + chartLineSize / 2);
path.lineTo(axesData.get(i + 1).X, height - bottomPadding - xTextHeight);
canvas.drawPath(path, paintShape);
}
}
// 画网格竖线
// canvas.drawLine(axesData.get(i).X, height - bottomPadding - xTextHeight,
// axesData.get(i).X, topPadding + topTextHeight, paintGrid);
// 写X轴坐标的刻度值
if (!TextUtils.isEmpty(axesData.get(i).getxText())) {
setTextSizeForWidth(
paintBottomText, spaceXLength - 10, axesData.get(i).getxText()); // 10为相邻日期文字间隔
canvas.drawText(
axesData.get(i).getxText(),
axesData.get(i).X,
height - bottomPadding - xTextHeight / 2,
paintBottomText);
}
// 写顶部的刻度值
if (!TextUtils.isEmpty(axesData.get(i).getTopText())) {
// 取消了顶部隔年显示的数据
// canvas.drawText(axesData.get(i).getTopText(), axesData.get(i).X, topPadding,
// paintTopText);
}
// 画数据点
if (pointBitmap == null) {
canvas.drawCircle(axesData.get(i).X, axesData.get(i).Y, pointSize + 1, paintChart);
canvas.drawCircle(axesData.get(i).X, axesData.get(i).Y, pointSize, paintPoint);
} else {
Matrix matrix = new Matrix();
canvas.drawBitmap(pointBitmap, matrix, paintPoint);
}
}
// 画最后一个数据的网格竖线
// canvas.drawLine(axesData.get(axesData.size() - 1).X, height - bottomPadding - xTextHeight,
// axesData.get(axesData.size() - 1).X,
// topPadding + topTextHeight, paintGrid);
// 写X轴坐标的最后一个值的刻度值
/*
* canvas.drawText(axesData.get(axesData.size() - 1).X + "",
* axesData.get(axesData.size() - 1).X, height - bottomPadding -
* xTextHeight / 2, paintBottomText);
*/
// 写顶部的最后一个刻度值
// canvas.drawText("2014", axesData.get(axesData.size() - 1).X,
// topPadding, paintTopText);
// 画数最后一个据点
if (pointBitmap == null) {
// canvas.drawCircle(axesData.get(axesData.size() - 1).X,
// axesData.get(axesData.size() - 1).Y, pointSize + 1,
// paintChart);
// canvas.drawCircle(axesData.get(axesData.size() - 1).X,
// axesData.get(axesData.size() - 1).Y, pointSize, paintPoint);
} else {
Matrix matrix = new Matrix();
canvas.drawBitmap(pointBitmap, matrix, paintPoint);
}
}
if (currentPressedPoint != null) {
// canvas.drawCircle(currentPressedPoint.X, currentPressedPoint.Y, pointSize, pressedPaint);
}
}
private void touch_up() {
tiPath.lineTo(tiX, tiY);
tiCanvas.drawPath(tiPath, tiPaint);
tiPath.reset();
}
private void stroke(Seria s, Canvas canvas) {
mPlotPaint.setStyle(Paint.Style.STROKE);
// draw line
if (s.mWidth > 0) {
// create the path
mPath.reset();
mPath.moveTo(calcX(s.x[0]), calcY(s.y[0]));
for (int i = 1; i < s.sz(); i++) {
mPath.lineTo(calcX(s.x[i]), calcY(s.y[i]));
}
// draw the path
mPlotPaint.setColor(s.mColor);
mPlotPaint.setStrokeWidth(s.mWidth);
mPlotPaint.setPathEffect(s.mEffect);
canvas.drawPath(mPath, mPlotPaint);
}
// draw images seria
if (s.bms != null) {
for (int i = 0; i < s.sz(); i++) {
Bitmap bm;
if (s.bms.length > 1) {
bm = s.bms[i];
} else {
bm = s.bms[0];
}
float left = calcX(s.x[i]);
float top = calcY(s.y[i]);
if (s.hAlign == HALIGN.CENTER) {
left -= bm.getWidth() / 2;
} else if (s.hAlign == HALIGN.RIGHT) {
left -= bm.getWidth();
}
if (s.vAlign == VALIGN.CENTER) {
top -= bm.getHeight() / 2;
} else if (s.vAlign == VALIGN.BOTTOM) {
top -= bm.getHeight();
}
canvas.drawBitmap(s.bms[i], left, top, mPlotPaint);
}
}
if (s.texts != null) {
Align align = Align.CENTER;
switch (s.hAlign) {
case LEFT:
align = Align.RIGHT;
case RIGHT:
align = Align.LEFT;
}
mPlotPaint.setTextAlign(align);
mPlotPaint.setStrokeWidth(0);
mPlotPaint.setColor(s.mColor);
for (int i = 0; i < s.sz(); i++) {
float x = calcX(s.x[i]);
float y = calcY(s.y[i]);
switch (s.vAlign) {
case TOP:
y -= mPlotPaint.getTextSize();
case CENTER:
y -= 0.5 * mPlotPaint.getTextSize();
}
if (s.deg != 0) {
canvas.save();
canvas.rotate(s.deg, x, y);
}
canvas.drawText(s.texts[i], x, y, mPlotPaint);
if (s.deg != 0) {
canvas.restore();
}
}
}
}
public void onDraw(Canvas canvas) {
canvas.drawColor(Color.TRANSPARENT);
paint.reset();
paint.setAntiAlias(true);
float midX, midY, radius, innerRadius;
path.reset();
float currentAngle = 270;
float currentSweep;
int totalValue = 0;
float padding = 2;
midX = getWidth() / 2;
midY = getHeight() / 2;
if (midX < midY) {
radius = midX;
} else {
radius = midY;
}
radius -= padding;
innerRadius = radius - thickness;
for (PieSlice slice : slices) {
totalValue += slice.getValue();
}
int count = 0;
for (PieSlice slice : slices) {
Path p = new Path();
paint.setColor(slice.getColor());
currentSweep = (slice.getValue() / totalValue) * (360);
p.arcTo(
new RectF(midX - radius, midY - radius, midX + radius, midY + radius),
currentAngle + padding,
currentSweep - padding);
p.arcTo(
new RectF(midX - innerRadius, midY - innerRadius, midX + innerRadius, midY + innerRadius),
(currentAngle + padding) + (currentSweep - padding),
-(currentSweep - padding));
p.close();
slice.setPath(p);
slice.setRegion(
new Region(
(int) (midX - radius),
(int) (midY - radius),
(int) (midX + radius),
(int) (midY + radius)));
canvas.drawPath(p, paint);
if (indexSelected == count && listener != null) {
path.reset();
paint.setColor(slice.getColor());
paint.setColor(Color.parseColor("#33B5E5"));
paint.setAlpha(100);
if (slices.size() > 1) {
path.arcTo(
new RectF(
midX - radius - (padding * 2),
midY - radius - (padding * 2),
midX + radius + (padding * 2),
midY + radius + (padding * 2)),
currentAngle,
currentSweep + padding);
path.arcTo(
new RectF(
midX - innerRadius + (padding * 2),
midY - innerRadius + (padding * 2),
midX + innerRadius - (padding * 2),
midY + innerRadius - (padding * 2)),
currentAngle + currentSweep + padding,
-(currentSweep + padding));
path.close();
} else {
path.addCircle(midX, midY, radius + padding, Direction.CW);
}
canvas.drawPath(path, paint);
paint.setAlpha(255);
}
currentAngle = currentAngle + currentSweep;
count++;
}
}
/**
* 自定义的方法,简单绘制一些基本图形
*
* @param mCanvas 把图形画在mCanvas上
*/
public void canvasMethod(Canvas mCanvas) {
// 创建对应坐标的矩形区域
RectF mArc = new RectF(mX, mY - 70, mX + 50, mY - 20);
// 画填充弧,在矩形区域内,从弧的最右边开始,画270度,然后再通过连接圆心来填充
mCanvas.drawArc(mArc, 0, 270, true, mPaint);
// 获得icon的Bitmap对象
Bitmap mBitmap = Bitmap.createBitmap(100, 100, Bitmap.Config.ARGB_8888);
// 画图片
mCanvas.drawBitmap(mBitmap, mX, mY, mPaint);
// 画圆,(x轴,y轴,半径,画笔)
mCanvas.drawCircle(mX + 10, mY + 60, 10, mPaint);
// 画一条线,(起点横坐标,起点纵坐标,终点横坐标,终点纵坐标,画笔)
mCanvas.drawLine(mX, mY + 75, mX + 20, mY + 75, mPaint);
// 画多条线,(坐标数组,画笔)坐标数组里每四个值构成一条线
mCanvas.drawLines(
new float[] {mX + 50, mY + 45, mX + 50, mY + 75, mX + 60, mY + 45, mX + 60, mY + 75},
mPaint);
// 创建对应矩形区域
RectF mOval = new RectF(mX, mY + 80, mX + 60, mY + 110);
// 画椭圆
mCanvas.drawOval(mOval, mPaint);
/*
* Paint qPaint = new Paint(); qPaint.setColor(Color.RED);
* mCanvas.drawPaint(qPaint);
*/
// 重置Path里的所有路径
mPath.reset();
// 设置Path的起点
mPath.moveTo(mX, mY + 120);
// 第二个点
mPath.lineTo(screenW - 10, mY + 120);
// 第三个点
mPath.lineTo(screenW - 10, mY + 150);
// 画出路径,这里画的是三角形
mCanvas.drawPath(mPath, mPaint);
// 重置Path里的所有路径
qPath.reset();
// 设置Path的起点
qPath.moveTo(qStartX, qStartY);
// 设置贝塞尔曲线的控制点坐标和终点坐标
qPath.quadTo(qControlX, qCOntrolY, qEndX, qEndY);
// 画出贝塞尔曲线
mCanvas.drawPath(qPath, qPaint);
// 画点
mCanvas.drawPoint(mX, mY + 155, qPaint);
// 画多个点,坐标数组每两个值代表一个点的坐标
mCanvas.drawPoints(new float[] {mX, mY + 160, mX + 5, mY + 160, mX + 5, mY + 160}, qPaint);
// 画矩形
mCanvas.drawRect(mX, mY + 170, mX + 100, mY + 220, mPaint);
// 设置矩形区域
RectF mRect = new RectF(mX, mY + 230, mX + 100, mY + 260);
// 画圆角矩形,这个方法的第二第三个参数在后面有图讲解
mCanvas.drawRoundRect(mRect, 10, 10, mPaint);
// 画文本
mCanvas.drawText("drawText", mX, mY + 290, mPaint);
// 画文本,数组里每两个值代表文本的一个字符的坐标，数组的坐标可以比字符串里的字符多，但不可以少
mCanvas.drawPosText(
"哈哈你好",
new float[] {mX, mY + 310, mX + 20, mY + 310, mX + 40, mY + 310, mX + 60, mY + 310},
mPaint);
// 重置Path
tPath.reset();
// 添加一个圆形路径,坐标,半径,方向(顺时针还是逆时针)
tPath.addCircle(mX + 10, mY + 340, 10, Path.Direction.CW);
// 画出路径
mCanvas.drawPath(tPath, qPaint);
// 把文本画在路径上,但不会画出路径
mCanvas.drawTextOnPath("draw", tPath, 30, 0, mPaint);
}
private void drawHSCrosshairs(Canvas canvas) {
float crosshairsRadius = CROSSHAIRS_SIZE / 2.0f;
float[] HSCrosshairsCenter = findCrosshairsCenter();
// Log.d(TAG, String.format("Reference point: (%f, %f)", HSCrosshairsCenter[0],
// HSCrosshairsCenter[1]));
// find the actual coordinates of the center of the crosshairs wrt the whole screen
float absoluteCenterX = (float) mWheelCenter.x + HSCrosshairsCenter[0];
// note: the (-) is intentional due to the inversion of the y coordinate system (wrt cartesian)
float absoluteCenterY = (float) mWheelCenter.y - HSCrosshairsCenter[1];
// make convenience variables for size
float topBottomWidth = 0.35f * CROSSHAIRS_SIZE;
float topBottomHeight = 0.3f * CROSSHAIRS_SIZE;
float leftRightWidth = 0.3f * CROSSHAIRS_SIZE;
float leftRightHeight = 0.35f * CROSSHAIRS_SIZE;
// make convenience variables for bounds
float left = absoluteCenterX - crosshairsRadius;
float right = absoluteCenterX + crosshairsRadius;
float top = absoluteCenterY - crosshairsRadius;
float bottom = absoluteCenterY + crosshairsRadius;
Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG);
paint.setStrokeWidth(1.0f);
// draw the top triangle
Path topTrianglePath = new Path();
topTrianglePath.moveTo(absoluteCenterX - topBottomWidth, top);
topTrianglePath.lineTo(absoluteCenterX + topBottomWidth, top);
topTrianglePath.lineTo(absoluteCenterX, top + topBottomHeight);
topTrianglePath.close();
paint.setColor(Color.BLUE);
paint.setStyle(Paint.Style.FILL);
canvas.drawPath(topTrianglePath, paint);
paint.setColor(Color.WHITE);
paint.setStyle(Paint.Style.STROKE);
canvas.drawPath(topTrianglePath, paint);
// draw the bottom triangle
Path bottomTrianglePath = new Path();
bottomTrianglePath.moveTo(absoluteCenterX + topBottomWidth, bottom);
bottomTrianglePath.lineTo(absoluteCenterX - topBottomWidth, bottom);
bottomTrianglePath.lineTo(absoluteCenterX, bottom - topBottomHeight);
bottomTrianglePath.close();
paint.setColor(Color.BLUE);
paint.setStyle(Paint.Style.FILL);
canvas.drawPath(bottomTrianglePath, paint);
paint.setColor(Color.WHITE);
paint.setStyle(Paint.Style.STROKE);
canvas.drawPath(bottomTrianglePath, paint);
// draw the left triangle
Path leftTrianglePath = new Path();
leftTrianglePath.moveTo(left, absoluteCenterY + leftRightHeight);
leftTrianglePath.lineTo(left, absoluteCenterY - leftRightHeight);
leftTrianglePath.lineTo(left + leftRightWidth, absoluteCenterY);
leftTrianglePath.close();
paint.setColor(Color.BLUE);
paint.setStyle(Paint.Style.FILL);
canvas.drawPath(leftTrianglePath, paint);
paint.setColor(Color.WHITE);
paint.setStyle(Paint.Style.STROKE);
canvas.drawPath(leftTrianglePath, paint);
// draw the right triangle
Path rightTrianglePath = new Path();
rightTrianglePath.moveTo(right, absoluteCenterY - leftRightHeight);
rightTrianglePath.lineTo(right, absoluteCenterY + leftRightHeight);
rightTrianglePath.lineTo(right - leftRightWidth, absoluteCenterY);
rightTrianglePath.close();
paint.setColor(Color.BLUE);
paint.setStyle(Paint.Style.FILL);
canvas.drawPath(rightTrianglePath, paint);
paint.setColor(Color.WHITE);
paint.setStyle(Paint.Style.STROKE);
canvas.drawPath(rightTrianglePath, paint);
}
protected void draw(Canvas canvas) {
if (mHidden) {
return;
}
Path path = new Path();
if (!hasFocus()) {
mOutlinePaint.setColor(0xFF000000);
canvas.drawRect(mDrawRect, mOutlinePaint);
} else {
Rect viewDrawingRect = new Rect();
mContext.getDrawingRect(viewDrawingRect);
if (mCircle) {
canvas.save();
float width = mDrawRect.width();
float height = mDrawRect.height();
path.addCircle(
mDrawRect.left + (width / 2),
mDrawRect.top + (height / 2),
width / 2,
Path.Direction.CW);
mOutlinePaint.setColor(0xFFEF04D6);
mOutlinePaint.setColor(0x0a83fe);
canvas.clipPath(path, Region.Op.DIFFERENCE);
canvas.drawRect(viewDrawingRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
canvas.restore();
} else {
Rect topRect =
new Rect(
viewDrawingRect.left, viewDrawingRect.top, viewDrawingRect.right, mDrawRect.top);
if (topRect.width() > 0 && topRect.height() > 0) {
canvas.drawRect(topRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
}
Rect bottomRect =
new Rect(
viewDrawingRect.left,
mDrawRect.bottom,
viewDrawingRect.right,
viewDrawingRect.bottom);
if (bottomRect.width() > 0 && bottomRect.height() > 0) {
canvas.drawRect(bottomRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
}
Rect leftRect =
new Rect(viewDrawingRect.left, topRect.bottom, mDrawRect.left, bottomRect.top);
if (leftRect.width() > 0 && leftRect.height() > 0) {
canvas.drawRect(leftRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
}
Rect rightRect =
new Rect(mDrawRect.right, topRect.bottom, viewDrawingRect.right, bottomRect.top);
if (rightRect.width() > 0 && rightRect.height() > 0) {
canvas.drawRect(rightRect, hasFocus() ? mFocusPaint : mNoFocusPaint);
}
path.addRect(new RectF(mDrawRect), Path.Direction.CW);
mOutlinePaint.setColor(Color.parseColor("#0a83fe"));
}
canvas.drawPath(path, mOutlinePaint);
if (mMode == ModifyMode.Grow) {
if (mCircle) {
int width = mResizeDrawableDiagonal.getIntrinsicWidth();
int height = mResizeDrawableDiagonal.getIntrinsicHeight();
int d = (int) Math.round(Math.cos(/* 45deg */ Math.PI / 4D) * (mDrawRect.width() / 2D));
int x = mDrawRect.left + (mDrawRect.width() / 2) + d - width / 2;
int y = mDrawRect.top + (mDrawRect.height() / 2) - d - height / 2;
mResizeDrawableDiagonal.setBounds(
x,
y,
x + mResizeDrawableDiagonal.getIntrinsicWidth(),
y + mResizeDrawableDiagonal.getIntrinsicHeight());
mResizeDrawableDiagonal.draw(canvas);
} else {
int left = mDrawRect.left + 1;
int right = mDrawRect.right + 1;
int top = mDrawRect.top + 4;
int bottom = mDrawRect.bottom + 3;
int widthWidth = mResizeDrawableWidth.getIntrinsicWidth() / 2;
int widthHeight = mResizeDrawableWidth.getIntrinsicHeight() / 2;
int heightHeight = mResizeDrawableHeight.getIntrinsicHeight() / 2;
int heightWidth = mResizeDrawableHeight.getIntrinsicWidth() / 2;
int xMiddle = mDrawRect.left + ((mDrawRect.right - mDrawRect.left) / 2);
int yMiddle = mDrawRect.top + ((mDrawRect.bottom - mDrawRect.top) / 2);
mResizeDrawableWidth.setBounds(
left - widthWidth, yMiddle - widthHeight, left + widthWidth, yMiddle + widthHeight);
mResizeDrawableWidth.draw(canvas);
mResizeDrawableWidth.setBounds(
right - widthWidth, yMiddle - widthHeight, right + widthWidth, yMiddle + widthHeight);
mResizeDrawableWidth.draw(canvas);
mResizeDrawableHeight.setBounds(
xMiddle - heightWidth, top - heightHeight, xMiddle + heightWidth, top + heightHeight);
mResizeDrawableHeight.draw(canvas);
mResizeDrawableHeight.setBounds(
xMiddle - heightWidth,
bottom - heightHeight,
xMiddle + heightWidth,
bottom + heightHeight);
mResizeDrawableHeight.draw(canvas);
}
}
}
}
@Override
public void onDraw(Canvas canvas) {
canvas.drawPath(path, paint);
}
@Override
protected void onDraw(Canvas canvas) {
float ringWidth = textHeight + 4;
int height = getMeasuredHeight();
int width = getMeasuredWidth();
int px = width / 2;
int py = height / 2;
Point center = new Point(px, py);
int radius = Math.min(px, py) - 2;
RectF boundingBox =
new RectF(center.x - radius, center.y - radius, center.x + radius, center.y + radius);
RectF innerBoundingBox =
new RectF(
center.x - radius + ringWidth,
center.y - radius + ringWidth,
center.x + radius - ringWidth,
center.y + radius - ringWidth);
float innerRadius = innerBoundingBox.height() / 2;
RadialGradient borderGradient =
new RadialGradient(
px, py, radius, borderGradientColors, borderGradientPositions, TileMode.CLAMP);
Paint pgb = new Paint();
pgb.setShader(borderGradient);
Path outerRingPath = new Path();
outerRingPath.addOval(boundingBox, Direction.CW);
canvas.drawPath(outerRingPath, pgb);
LinearGradient skyShader =
new LinearGradient(
center.x,
innerBoundingBox.top,
center.x,
innerBoundingBox.bottom,
skyHorizonColorFrom,
skyHorizonColorTo,
TileMode.CLAMP);
Paint skyPaint = new Paint();
skyPaint.setShader(skyShader);
LinearGradient groundShader =
new LinearGradient(
center.x,
innerBoundingBox.top,
center.x,
innerBoundingBox.bottom,
groundHorizonColorFrom,
groundHorizonColorTo,
TileMode.CLAMP);
Paint groundPaint = new Paint();
groundPaint.setShader(groundShader);
float tiltDegree = pitch;
while (tiltDegree > 90 || tiltDegree < -90) {
if (tiltDegree > 90) tiltDegree = -90 + (tiltDegree - 90);
if (tiltDegree < -90) tiltDegree = 90 - (tiltDegree + 90);
}
float rollDegree = roll;
while (rollDegree > 180 || rollDegree < -180) {
if (rollDegree > 180) rollDegree = -180 + (rollDegree - 180);
if (rollDegree < -180) rollDegree = 180 - (rollDegree + 180);
}
Path skyPath = new Path();
skyPath.addArc(innerBoundingBox, -rollDegree, (180 + (2 * rollDegree)));
canvas.rotate(-tiltDegree, px, py);
canvas.drawOval(innerBoundingBox, groundPaint);
canvas.drawPath(skyPath, skyPaint);
canvas.drawPath(skyPath, markerPaint);
int markWidth = radius / 3;
int startX = center.x - markWidth;
int endX = center.x + markWidth;
Log.d("PAARV ", "Roll " + String.valueOf(rollDegree));
Log.d("PAARV ", "Pitch " + String.valueOf(tiltDegree));
double h = innerRadius * Math.cos(Math.toRadians(90 - tiltDegree));
double justTiltX = center.x - h;
float pxPerDegree = (innerBoundingBox.height() / 2) / 45f;
for (int i = 90; i >= -90; i -= 10) {
double ypos = justTiltX + i * pxPerDegree;
if ((ypos < (innerBoundingBox.top + textHeight))
|| (ypos > innerBoundingBox.bottom - textHeight)) continue;
canvas.drawLine(startX, (float) ypos, endX, (float) ypos, markerPaint);
int displayPos = (int) (tiltDegree - i);
String displayString = String.valueOf(displayPos);
float stringSizeWidth = textPaint.measureText(displayString);
canvas.drawText(
displayString, (int) (center.x - stringSizeWidth / 2), (int) (ypos) + 1, textPaint);
}
markerPaint.setStrokeWidth(2);
canvas.drawLine(
center.x - radius / 2,
(float) justTiltX,
center.x + radius / 2,
(float) justTiltX,
markerPaint);
markerPaint.setStrokeWidth(1);
Path rollArrow = new Path();
rollArrow.moveTo(center.x - 3, (int) innerBoundingBox.top + 14);
rollArrow.lineTo(center.x, (int) innerBoundingBox.top + 10);
rollArrow.moveTo(center.x + 3, innerBoundingBox.top + 14);
rollArrow.lineTo(center.x, innerBoundingBox.top + 10);
canvas.drawPath(rollArrow, markerPaint);
String rollText = String.valueOf(rollDegree);
double rollTextWidth = textPaint.measureText(rollText);
canvas.drawText(
rollText,
(float) (center.x - rollTextWidth / 2),
innerBoundingBox.top + textHeight + 2,
textPaint);
canvas.restore();
canvas.save();
canvas.rotate(180, center.x, center.y);
for (int i = -180; i < 180; i += 10) {
if (i % 30 == 0) {
String rollString = String.valueOf(i * -1);
float rollStringWidth = textPaint.measureText(rollString);
PointF rollStringCenter =
new PointF(center.x - rollStringWidth / 2, innerBoundingBox.top + 1 + textHeight);
canvas.drawText(rollString, rollStringCenter.x, rollStringCenter.y, textPaint);
} else {
canvas.drawLine(
center.x,
(int) innerBoundingBox.top,
center.x,
(int) innerBoundingBox.top + 5,
markerPaint);
}
canvas.rotate(10, center.x, center.y);
}
canvas.restore();
canvas.save();
canvas.rotate(-1 * (bearing), px, py);
double increment = 22.5;
for (double i = 0; i < 360; i += increment) {
CompassDirection cd = CompassDirection.values()[(int) (i / 22.5)];
String headString = cd.toString();
float headStringWidth = textPaint.measureText(headString);
PointF headStringCenter =
new PointF(center.x - headStringWidth / 2, boundingBox.top + 1 + textHeight);
if (i % increment == 0)
canvas.drawText(headString, headStringCenter.x, headStringCenter.y, textPaint);
else
canvas.drawLine(
center.x, (int) boundingBox.top, center.x, (int) boundingBox.top + 3, markerPaint);
canvas.rotate((int) increment, center.x, center.y);
}
canvas.restore();
RadialGradient glassShader =
new RadialGradient(
px, py, (int) innerRadius, glassGradientColors, glassGradientPositions, TileMode.CLAMP);
Paint glassPaint = new Paint();
glassPaint.setShader(glassShader);
canvas.drawOval(innerBoundingBox, glassPaint);
canvas.drawOval(boundingBox, circlePaint);
circlePaint.setStrokeWidth(2);
canvas.drawOval(innerBoundingBox, circlePaint);
canvas.restore();
}
@Override
protected void onDraw(Canvas canvas) {
canvas.drawPath(path, paint);
}
@Override
protected void onDraw(Canvas canvas) {
super.onDraw(canvas);
canvas.drawColor(Color.TRANSPARENT);
int startCircleX = 0, startCircleY = 0;
if (isTouched) { // 触摸状态
startCircleX = startPoint.x + curRadius;
startCircleY = startPoint.y - curRadius;
// 绘制原来的圆形（触摸移动的时候半径会不断变化）
canvas.drawCircle(startCircleX, startCircleY, curRadius, paint);
// 绘制手指跟踪的圆形
int endCircleX = endPoint.x;
int endCircleY = endPoint.y;
canvas.drawCircle(endCircleX, endCircleY, originRadius, paint);
if (!isArrivedMaxMoved) { // 没有达到拉伸最大值
path.reset();
double sin = triangle.deltaY / triangle.hypotenuse;
double cos = triangle.deltaX / triangle.hypotenuse;
// A点
path.moveTo(
(float) (startCircleX - curRadius * sin), (float) (startCircleY - curRadius * cos));
// B点
path.lineTo(
(float) (startCircleX + curRadius * sin), (float) (startCircleY + curRadius * cos));
// C点
path.quadTo(
(startCircleX + endCircleX) / 2,
(startCircleY + endCircleY) / 2,
(float) (endCircleX + originRadius * sin),
(float) (endCircleY + originRadius * cos));
// D点
path.lineTo(
(float) (endCircleX - originRadius * sin), (float) (endCircleY - originRadius * cos));
// A点
path.quadTo(
(startCircleX + endCircleX) / 2,
(startCircleY + endCircleY) / 2,
(float) (startCircleX - curRadius * sin),
(float) (startCircleY - curRadius * cos));
canvas.drawPath(path, paint);
}
// 绘制文字
float textH = -textFontMetrics.ascent - textFontMetrics.descent;
canvas.drawText(text, endCircleX, endCircleY + textH / 2, textPaint);
} else { // 非触摸状态
if (curRadius > 0) {
startCircleX = curRadius;
startCircleY = originHeight - curRadius;
canvas.drawCircle(startCircleX, startCircleY, curRadius, paint);
if (curRadius == originRadius) { // 只有在恢复正常的情况下才显示文字
// 绘制文字
float textH = -textFontMetrics.ascent - textFontMetrics.descent;
canvas.drawText(text, startCircleX, startCircleY + textH / 2, textPaint);
}
}
}
// Logger.d(TAG, "circleX: " + startCircleX + ", circleY: " + startCircleY + ",
// curRadius: " + curRadius);
}
