manoharsamvel24/javacolorpicker

Purpose and runtime

JavaColorPicker is a standalone Java desktop color-selection utility inspired by PowerToys. It provides RGB/A adjustment, preview, screen sampling, standard color conversions, chooser integration, and clipboard copying. The shipped runtime is a JAR: dist/ColorPicker.jar, with FlatLaf packaged as dist/lib/flatlaf-3.6.jar.

Application entry point

The application is concentrated in src/colorpicker/ColorPicker.java, which is the primary UI, event-handling, and color-processing entry point. Build metadata and launch packaging are defined by build.xml and manifest.mf; NetBeans project configuration is under nbproject/project.properties.

UI composition and state model

ColorPicker.java owns the Swing desktop interface and its mutable selected-color state. RGB and alpha controls are the main input path; changes propagate to the preview surface and formatted-value displays. FlatLaf provides the modern look and feel via lib/flatlaf-3.6.jar.

Color representation and conversion

The selected color is maintained as Java color state and rendered into multiple output representations: HEX, HSL, HSV, and CMYK. This conversion/display boundary is internal to src/colorpicker/ColorPicker.java; format values are user-facing outputs rather than persisted domain data.

Color acquisition paths

Users can establish a color through three UI-driven routes:

• direct RGBA slider adjustment;

• a standard color chooser dialog;

• screen sampling through a press-and-drag dropper interaction.

The screen-picking route crosses from application UI into desktop screen capture/input behavior, then feeds the sampled value back into the same color-state update pipeline in src/colorpicker/ColorPicker.java.

External desktop integrations

Clipboard copy actions bridge formatted color strings to the host operating system clipboard. Screen picking depends on local desktop capabilities and is therefore environment-sensitive, unlike conversion and preview logic. The application has no indicated backend, persistence layer, network service, or web runtime.

Distribution and assets

The distributable artifact is dist/ColorPicker.jar; its accompanying runtime library directory is dist/lib. Source-side resources are expected under src/resources, while compiled resource output is under build/classes/resources. Visual documentation is kept in output/.