java.lang.Object

com.arbergashi.charts.render.BaseRenderer

com.arbergashi.charts.render.specialized.BulletChartRenderer

All Implemented Interfaces:: ChartRenderer

public final class BulletChartRenderer extends BaseRenderer

BulletChartRenderer - Compact KPI Visualization

Enterprise-grade bullet chart renderer for comparing actual performance against targets with qualitative performance ranges.

Features:

Actual vs Target: Visual comparison of performance
Qualitative Ranges: 3-tier background (poor/good/excellent)
Compact Design: Space-efficient KPI dashboard layout
Clear Target Marker: Red line for goal visualization
Professional Styling: Grayscale ranges, black bar, red marker

Data Mapping (ChartPoint):

Point 0 (required)  → Actual performance value
Point 1 (optional)  → Target/goal value
Additional points   → Ignored

Performance Characteristics:

Render Time: < 1ms (constant)
Complexity: O(1) - fixed number of elements
Memory: Zero allocations (shape pooling)

Since:

2026-01-01

Version:

1.0.0

Author:

Arber Gashi

See Also:

Field Summary

Fields inherited from class BaseRenderer
PIXEL_BUF, PIXEL_BUF4
Constructor Summary

Constructors

Constructor

Description

BulletChartRenderer()
Method Summary

Modifier and Type

Method

Description

protected void

drawData(Graphics2D g2, ChartModel model, PlotContext context)

Implementation-specific drawing logic.

Methods inherited from class BaseRenderer
drawHighlightPoint, drawI18nLabel, drawLabel, getArc, getCachedFont, getCachedGradient, getCachedStroke, getCachedStroke, getCachedStroke, getCubicCurve, getEllipse, getId, getLayerIndex, getLegendColor, getLine, getName, getPathCache, getPointAt, getRect, getRoundRectangle, getSeriesColor, getSeriesStroke, getTheme, getTooltipText, isLegendRequired, isMultiColor, pBuffer, pBuffer4, render, resolveTheme, seriesOrBase, setLayerIndex, setMultiColor, setTheme, setupQualityHints, themeAccent, themeAxisLabel, themeBackground, themeBearish, themeBullish, themeForeground, themeGrid, themeSeries

Methods inherited from class Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface ChartRenderer
clearHover, createContext, getFocusValues, getPreferredYRange, renderEmptyState, supportsEmptyState

Constructor Details
- BulletChartRenderer
  
  public BulletChartRenderer()
Method Details
- drawData
  
  protected void drawData(Graphics2D g2, ChartModel model, PlotContext context)
  
  Description copied from class: BaseRenderer
  
  Implementation-specific drawing logic. Must follow Zero-Allocation rules.
  
  Specified by:
  
  drawData in class BaseRenderer