protected void drawValues(GraphicsContext g, int width, int height) {
ChartContentProvider content = getContentProvider();
ChartColorProvider colors = getColorProvider();
int itemOffset = getItemWindow().getOffset();
int itemCount = getItemWindow().getCount();
int seriesOffset = 0;
int layerOffset = 0;
float itemWidth = getItemWidth();
double minValue = getMinValue();
float base = (float) -minValue * getValueScale();
Range itemSelection = getItemSelection();
ColorRGBA seriesColor = colors.getSeriesColor(layerOffset, seriesOffset);
for (int i = 0; i < itemCount; i++) {
// FIXME: 0.25f and 0.5f should be variables/constants
float x0 = (float) i * itemWidth + 0.25f * itemWidth;
float x1 = x0 + 0.5f * itemWidth;
float y0 = base;
float y1 = base;
double value = content.getValue(layerOffset, seriesOffset, i + itemOffset);
if (!Double.isNaN(value)) {
float scaledValue;
scaledValue = (float) value * getValueScale();
y1 = y0 + scaledValue;
if (itemSelection.contains(itemOffset + i)) {
g.setForeground(seriesColor);
} else {
g.setForeground(deselectedColor);
}
g.fillRectangle2D(x0, y0, x1, y1);
y0 = y1;
} else {
// Loss could be marked in this else clause,
// if desired in the future
}
}
}
protected void drawAxesTicks(GraphicsContext g, int width, int height) {
int itemTickStep = getItemTickStep();
int itemOffset = getItemWindow().getOffset();
int itemCount = getItemWindow().getCount();
float itemWidth = getItemWidth();
float xOffset = 0.5f * itemWidth + (itemTickStep - 1 - itemOffset % itemTickStep) * itemWidth;
float xStep = itemWidth * (float) itemTickStep;
float xLimit = itemWidth * itemCount;
float yOffset = (float) -getMinValue() * getValueScale();
float tickLength = 6.0f;
g.drawTicksX(xOffset, xStep, xLimit, 6.0f / getInnerScale(height), yOffset);
double maxValue = getMaxValue();
double minValue = getMinValue();
float base = (float) -minValue * getValueScale();
float yStep;
final String boundsTestString = "0";
double threshold = g.getTextBounds2D(GraphicsContext.FONT_LABEL, boundsTestString).getHeight();
if (maxValue >= Math.abs(minValue)) {
yStep = (float) (getAdaptiveStepSize(maxValue, height, threshold) * getValueScale());
} else {
yStep =
(float) (getAdaptiveStepSize(Math.abs(minValue), height, threshold) * getValueScale());
}
if (getMaxValue() > 0) {
// Draw positive Y ticks
g.drawTicksY(base, yStep, 1.01f, tickLength, 0.0f);
}
if (getMinValue() < 0) {
// Draw negative Y ticks
g.drawTicksY(base, -yStep, -0.01f, tickLength, 0.0f);
}
}
public void drawWhiteEdge(Edge e) {
// Graphics
GraphicsContext gc = kochPanel.getGraphicsContext2D();
// Adjust edge for zoom and drag
Edge e1 = edgeAfterZoomAndDrag(e);
// Set line color
gc.setStroke(Color.WHITE);
// Set line width depending on level
if (currentLevel <= 3) {
gc.setLineWidth(2.0);
} else if (currentLevel <= 5) {
gc.setLineWidth(1.5);
} else {
gc.setLineWidth(1.0);
}
// Draw line
gc.strokeLine(e1.X1, e1.Y1, e1.X2, e1.Y2);
}
public void clearKochPanel() {
GraphicsContext gc = kochPanel.getGraphicsContext2D();
gc.clearRect(0.0, 0.0, kpWidth, kpHeight);
gc.setFill(Color.BLACK);
gc.fillRect(0.0, 0.0, kpWidth, kpHeight);
}
