private Item createItem(String label, float percent, int sliceColor, int itemColor) {
Item it = new Item();
it.mLabel = label;
it.mItemColor = itemColor;
it.cSliceColor = sliceColor;
it.cPercent = percent;
// Log.d(TAG, "Percent for "+it.mLabel+": "+it.cPercent);
// Calculate the highlight color. Saturate at 0xff to make sure that high values
// don't result in aliasing.
it.mItemHighlight =
Color.argb(
0xff,
Math.min((int) (mHighlightStrength * (float) Color.red(itemColor)), 0xff),
Math.min((int) (mHighlightStrength * (float) Color.green(itemColor)), 0xff),
Math.min((int) (mHighlightStrength * (float) Color.blue(itemColor)), 0xff));
it.cSliceHighlight =
Color.argb(
0xff,
Math.min((int) (mHighlightStrength * (float) Color.red(sliceColor)), 0xff),
Math.min((int) (mHighlightStrength * (float) Color.green(sliceColor)), 0xff),
Math.min((int) (mHighlightStrength * (float) Color.blue(sliceColor)), 0xff));
float centerX = mPieBounds.width() / 2;
float centerY = mPieBounds.height() / 2;
float itemW = (mPieBounds.width() / 2) * it.cPercent;
float itemH = (mPieBounds.height() / 2) * it.cPercent;
it.cSliceBounds = new RectF(centerX - itemW, centerY - itemH, centerX + itemW, centerY + itemH);
return it;
}
/** Do all of the recalculations needed when the data array changes. */
private void onDataChanged() {
int angle = 360 / mData.size();
// This is the extra degrees that cannot be equally divided by the number of sides
int extra = 360 % mData.size();
// When the data changes, we have to recalculate
// all of the angles.
int currentAngle = 0;
for (Item it : mData) {
// Adds the extra degrees to the last slice to ensue no gaps
if (mData.get(mData.size() - 1).mLabel.equals(it.mLabel)) {
it.mEndAngle = currentAngle + angle + extra;
} else {
it.mEndAngle = currentAngle + angle;
}
it.mStartAngle = currentAngle;
currentAngle = it.mEndAngle;
// Recalculate the gradient shaders. There are
// three values in this gradient, even though only
// two are necessary, in order to work around
// a bug in certain versions of the graphics engine
// that expects at least three values if the
// positions array is non-null.
//
it.mItemShader =
new SweepGradient(
mPieBounds.width() / 2.0f,
mPieBounds.height() / 2.0f,
new int[] {
it.mItemHighlight, it.mItemHighlight, it.mItemColor, it.mItemColor,
},
new float[] {
0,
(float) (360 - it.mEndAngle) / 360.0f,
(float) (360 - it.mStartAngle) / 360.0f,
1.0f
});
it.cSliceShader =
new SweepGradient(
mPieBounds.width() / 2.0f,
mPieBounds.height() / 2.0f,
new int[] {
it.cSliceHighlight, it.cSliceHighlight, it.cSliceColor, it.cSliceColor,
},
new float[] {
0,
(float) (360 - it.mEndAngle) / 360.0f,
(float) (360 - it.mStartAngle) / 360.0f,
1.0f
});
}
calcCurrentItem();
onScrollFinished();
}
// Grows the cropping rectange by (dx, dy) in image space.
void growBy(float dx, float dy) {
if (mMaintainAspectRatio) {
if (dx != 0) {
dy = dx / mInitialAspectRatio;
} else if (dy != 0) {
dx = dy * mInitialAspectRatio;
}
}
// Don't let the cropping rectangle grow too fast.
// Grow at most half of the difference between the image rectangle and
// the cropping rectangle.
RectF r = new RectF(mCropRect);
if (dx > 0F && r.width() + 2 * dx > mImageRect.width()) {
float adjustment = (mImageRect.width() - r.width()) / 2F;
dx = adjustment;
if (mMaintainAspectRatio) {
dy = dx / mInitialAspectRatio;
}
}
if (dy > 0F && r.height() + 2 * dy > mImageRect.height()) {
float adjustment = (mImageRect.height() - r.height()) / 2F;
dy = adjustment;
if (mMaintainAspectRatio) {
dx = dy * mInitialAspectRatio;
}
}
r.inset(-dx, -dy);
// Don't let the cropping rectangle shrink too fast.
final float widthCap = 25F;
if (r.width() < widthCap) {
r.inset(-(widthCap - r.width()) / 2F, 0F);
}
float heightCap = mMaintainAspectRatio ? (widthCap / mInitialAspectRatio) : widthCap;
if (r.height() < heightCap) {
r.inset(0F, -(heightCap - r.height()) / 2F);
}
// Put the cropping rectangle inside the image rectangle.
if (r.left < mImageRect.left) {
r.offset(mImageRect.left - r.left, 0F);
} else if (r.right > mImageRect.right) {
r.offset(-(r.right - mImageRect.right), 0);
}
if (r.top < mImageRect.top) {
r.offset(0F, mImageRect.top - r.top);
} else if (r.bottom > mImageRect.bottom) {
r.offset(0F, -(r.bottom - mImageRect.bottom));
}
mCropRect.set(r);
mDrawRect = computeLayout();
mContext.invalidate();
}
public SVGTileProvider(File file, float dpi) throws IOException {
mScale = Math.round(dpi + .3f); // Make it look nice on N7 (1.3 dpi)
mDimension = BASE_TILE_SIZE * mScale;
mPool = new TileGeneratorPool(POOL_MAX_SIZE);
SVG svg = new SVGBuilder().readFromInputStream(new FileInputStream(file)).build();
mSvgPicture = svg.getPicture();
RectF limits = svg.getLimits();
// These values map the SVG file to world coordinates.
// See: http://stackoverflow.com/questions/21167584/google-io-2013-app-mystery-values
mBaseMatrix = new Matrix();
mBaseMatrix.setPolyToPoly(
new float[] {
0,
0, // North-West
limits.width(),
0, // North-East
limits.width(),
limits.height() // South-East
},
0,
BuildConfig.MAP_FLOORPLAN_MAPPING,
0,
3);
}
public PointF getElementCoordinates(
float height, float width, RectF viewRect, PositionMetrics metrics) {
float x = metrics.getXPositionMetric().getPixelValue(viewRect.width()) + viewRect.left;
float y = metrics.getYPositionMetric().getPixelValue(viewRect.height()) + viewRect.top;
PointF point = new PointF(x, y);
return PixelUtils.sub(point, getAnchorOffset(width, height, metrics.getAnchor()));
}
public SVGTileProvider(File file, float dpi) throws IOException {
mScale = Math.round(dpi + .3f); // Make it look nice on N7 (1.3 dpi)
mDimension = BASE_TILE_SIZE * mScale;
mPool = new TileGeneratorPool(POOL_MAX_SIZE);
SVG svg = new SVGBuilder().readFromInputStream(new FileInputStream(file)).build();
mSvgPicture = svg.getPicture();
RectF limits = svg.getLimits();
mBaseMatrix = new Matrix();
mBaseMatrix.setPolyToPoly(
new float[] {0, 0, limits.width(), 0, limits.width(), limits.height()},
0,
new float[] {
40.95635986328125f, 98.94217824936158f,
40.95730018615723f, 98.94123077396628f,
40.95791244506836f, 98.94186019897214f
},
0,
3);
}
@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();
}
private int calcY(float y) {
RectF r = mPlotBounds;
return Math.round(r.top + r.height() * (1 - (y - getYMin()) / (getYMax() - getYMin())));
}
public static PointF getAnchorCoordinates(RectF widgetRect, Anchor anchor) {
return PixelUtils.add(
new PointF(widgetRect.left, widgetRect.top),
getAnchorOffset(widgetRect.width(), widgetRect.height(), anchor));
}
@Override
protected void onSizeChanged(int w, int h, int oldw, int oldh) {
super.onSizeChanged(w, h, oldw, oldh);
Log.d(TAG, "Slice Count: " + mData.size());
if (mData.size() > 0) {
//
// Set dimensions for text, pie chart, etc
//
// Account for padding
float xpad = (float) (getPaddingLeft() + getPaddingRight());
float ypad = (float) (getPaddingTop() + getPaddingBottom());
// Account for the label
if (mShowText) xpad += mTextWidth;
float ww = (float) w - xpad;
float hh = (float) h - ypad;
// Figure out how big we can make the pie.
float diameter = Math.min(ww, hh);
mPieBounds = new RectF(0.0f, 0.0f, diameter, diameter);
mPieBounds.offsetTo(getPaddingLeft(), getPaddingTop());
// Log.d(TAG, "mPieBounds>> "+mPieBounds);
mPointerY = mTextY - (mTextHeight / 2.0f);
float pointerOffset = mPieBounds.centerY() - mPointerY;
// Make adjustments based on text position
if (mTextPos == TEXTPOS_LEFT) {
mTextPaint.setTextAlign(Paint.Align.RIGHT);
if (mShowText) mPieBounds.offset(mTextWidth, 0.0f);
mTextX = mPieBounds.left;
if (pointerOffset < 0) {
pointerOffset = -pointerOffset;
mCurrentItemAngle = 225;
} else {
mCurrentItemAngle = 135;
}
mPointerX = mPieBounds.centerX() - pointerOffset;
} else {
mTextPaint.setTextAlign(Paint.Align.LEFT);
mTextX = mPieBounds.right;
if (pointerOffset < 0) {
pointerOffset = -pointerOffset;
mCurrentItemAngle = 315;
} else {
mCurrentItemAngle = 45;
}
mPointerX = mPieBounds.centerX() + pointerOffset;
}
mShadowBounds =
new RectF(
mPieBounds.left + 10,
mPieBounds.bottom + 10,
mPieBounds.right - 10,
mPieBounds.bottom + 20);
// Lay out the child view that actually draws the pie.
mPieView.layout(
(int) mPieBounds.left,
(int) mPieBounds.top,
(int) mPieBounds.right,
(int) mPieBounds.bottom);
mPieView.setPivot(mPieBounds.width() / 2, mPieBounds.height() / 2);
mPointerView.layout(0, 0, w, h);
onDataChanged();
}
}