org.eclipse.swt.graphics.Color.java Source code

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Here is the source code for org.eclipse.swt.graphics.Color.java

Source

package org.eclipse.swt.graphics;

import org.eclipse.swt.*;

public final class Color extends Resource {

    public int handle;

    Color() {
    }

    public Color(Device device, int red, int green, int blue) {
        init(device, red, green, blue);
    }

    public Color(Device device, RGB rgb) {
        if (rgb == null)
            SWT.error(SWT.ERROR_NULL_ARGUMENT);
        init(device, rgb.red, rgb.green, rgb.blue);
    }

    public void dispose() {
        handle = -1;
        device = null;
    }

    public boolean equals(Object object) {
        if (object == this)
            return true;
        if (!(object instanceof Color))
            return false;
        Color color = (Color) object;
        return device == color.device && (handle & 0xFFFFFF) == (color.handle & 0xFFFFFF);
    }

    public int getBlue() {
        return (handle & 0xFF0000) >> 16;
    }

    public int getGreen() {
        return (handle & 0xFF00) >> 8;
    }

    public int getRed() {
        return handle & 0xFF;
    }

    public RGB getRGB() {
        return new RGB(handle & 0xFF, (handle & 0xFF00) >> 8, (handle & 0xFF0000) >> 16);
    }

    public int hashCode() {
        return handle;
    }

    void init(Device device, int red, int green, int blue) {
        if (red > 255 || red < 0 || green > 255 || green < 0 || blue > 255 || blue < 0) {
            SWT.error(SWT.ERROR_INVALID_ARGUMENT);
        }
        this.device = device;
        handle = (red & 0xFF) | ((green & 0xFF) << 8) | ((blue & 0xFF) << 16);
    }

    public boolean isDisposed() {
        return handle == -1;
    }

    public String toString() {
        if (isDisposed())
            return "Color {*DISPOSED*}"; //$NON-NLS-1$
        return "Color {" + getRed() + ", " + getGreen() + ", " + getBlue() + "}"; //$NON-NLS-1$//$NON-NLS-2$ //$NON-NLS-3$ //$NON-NLS-4$
    }

}