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Author: CodeHead (posted 2013-12-10 22:53:11, viewed 92 times)

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package com.deathofanalog.isohio.gui.controls;

import java.awt.Point;
import java.awt.Rectangle;
import org.newdawn.slick.Color;
import org.newdawn.slick.Graphics;
import org.newdawn.slick.Input;

/**
 *
 * @author codehead
 */
public class HSlider extends AbstractControl {
    private Rectangle Handle = new Rectangle(0,0,1,1);
    private int TrackThickness = 1;
    private Color TrackColor = m_Foreground;
    private Color HandleColor = TrackColor;
    private float Percent = 0.0f;
    private boolean DrawTrack = true;

    public HSlider() {
        this.addInputListener(new ExtendedInputListener() {
            @Override
            public void mouseWheelMoved(int change) {
                int dir = change>0?1:-1;
                setPercent(Percent + (0.1f * dir));
            }

            @Override
            public void mouseClicked(int button, int x, int y, int clickCount) {
                mouseDragged(x, y, x, y);
            }

            @Override
            public void mouseDragged(int oldx, int oldy, int newx, int newy) {
                int mx_relative = newx - (computeRenderingOffset().x + m_BorderSize + (Handle.width>>1));
                int linewidth = (m_Dimension.width - (m_BorderSize<<1) - Handle.width);
                setPercent(((float)mx_relative / (float)linewidth));
            }
            
            @Override
            public void keyPressed(int key, char c) {
                int dir = 0;
                float amt = 0;
                switch(key) {
                    case Input.KEY_UP:
                        dir = 1;
                        amt = 0.1f;
                        break;
                    case Input.KEY_RIGHT:
                        dir = 1;
                        amt = 0.01f;
                        break;
                    case Input.KEY_DOWN:
                        dir = -1;
                        amt = 0.1f;
                        break;                        
                    case Input.KEY_LEFT:
                        dir = -1;
                        amt = 0.01f;
                        break;                                
                    default:
                        break;
                }
                setPercent(Percent + (amt * dir));
            }
            
        });
    }
    
    /**
     * @return the TrackThickness
     */
    public int getTrackThickness() {
        return TrackThickness;
    }

    /**
     * @param TrackThickness the TrackThickness to set
     */
    public void setTrackThickness(int TrackThickness) {
        this.TrackThickness = TrackThickness;
    }

    /**
     * @return the TrackColor
     */
    public Color getTrackColor() {
        return TrackColor;
    }

    /**
     * @param TrackColor the TrackColor to set
     */
    public void setTrackColor(Color TrackColor) {
        this.TrackColor = TrackColor;
    }

    /**
     * @return the Percent
     */
    public float getPercent() {
        return Percent;
    }

    /**
     * @param Percent the Percent to set
     */
    public void setPercent(float Percent) {
        this.Percent = Math.min(1.0f,Math.max(0.0f,Percent));
    }

    /**
     * @return the DrawTrack
     */
    public boolean isDrawTrack() {
        return DrawTrack;
    }

    /**
     * @param DrawTrack the DrawTrack to set
     */
    public void setDrawTrack(boolean DrawTrack) {
        this.DrawTrack = DrawTrack;
    }
    
    @Override
    public void render(Graphics g) {
        Point fnlrpoint = computeRenderingOffset();
        super.render(g);
        Handle.width = ((m_Dimension.height - (m_BorderSize<<1))>>1);
        Handle.height = Handle.width + (Handle.width>>1);
        int trackwidth = m_Dimension.width - (m_BorderSize<<1) - Handle.width;
        int trackposx = fnlrpoint.x + m_BorderSize + (Handle.width>>1);
        int trackposy = fnlrpoint.y + (m_Dimension.height>>1)-(TrackThickness>>1);
        Handle.x = trackposx + Math.round(Percent*trackwidth) - (Handle.width>>1);
        Handle.y = fnlrpoint.y + ((m_Dimension.height - Handle.height)>>1);
        if(m_IsOpaque) {
            g.setColor(m_Background);
            g.fillRect(fnlrpoint.x + m_BorderSize, fnlrpoint.y + m_BorderSize, 
                    m_Dimension.width - (m_BorderSize<<1), 
                    m_Dimension.height - (m_BorderSize<<1)
            );
        }
        g.setColor(TrackColor);
        g.fillRect(trackposx, trackposy, trackwidth, TrackThickness);
        g.setColor(HandleColor);
        g.fillRect(Handle.x, Handle.y, Handle.width, Handle.height);
    }

    /**
     * @return the HandleColor
     */
    public Color getHandleColor() {
        return HandleColor;
    }

    /**
     * @param HandleColor the HandleColor to set
     */
    public void setHandleColor(Color HandleColor) {
        this.HandleColor = HandleColor;
    }
}





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