VisClient/org/hfbk/vis/visnode/VisButton.java

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/*
 * Created on 27.04.2008
 */
package org.hfbk.vis.visnode;

import java.awt.event.MouseEvent;

import org.dronus.gl.GLBoxRenderer;
import org.dronus.gl.GLTextPanel;
import org.lwjgl.opengl.GL11;
import org.lwjgl.util.vector.Vector3f;

public abstract class VisButton extends VisNodeMousable implements VisUI {

        
        public String help;
        GLTextPanel helpPanel;
        boolean toggled=false;
        
        VisButton(String help, Vector3f position) {
                super(null, position);
                this.help=help;
                w=2; h=1; radius=2;
        }
        
        public abstract void handleClick();
        
        void handleEvent(VisMouseEvent evt) {
                if (evt.getID()==MouseEvent.MOUSE_RELEASED){
                        handleClick();
                }
        }

        void renderHelp(){
                if (helpPanel==null)
                        helpPanel=new GLTextPanel(help,0,0);                    
                GL11.glEnable(GL11.GL_TEXTURE_2D);
                GL11.glPushMatrix();
                GL11.glTranslatef(1f,-.5f,0);
                
                Vector3f scaler=new Vector3f(.5f,1,1);
                scaler.scale(h);
                GL11.glScalef(scaler.x,scaler.y,scaler.z);
                helpPanel.render();
                GL11.glPopMatrix();
                GL11.glDisable(GL11.GL_TEXTURE_2D);
        }
        
        void renderSelf() {
                GL11.glDisable(GL11.GL_TEXTURE_2D);
                //push back the surface in z buffer to allow overrendering by edges
                GL11.glPolygonOffset(1,1);
                if(isHoovered){
                        renderHelp();
                        GL11.glColor4f(1,1,1,.5f);                      
                }else if (toggled)
                        GL11.glColor4f(1f,1f,.5f,.5f);
                else
                        GL11.glColor4f(.5f,.5f,.5f,.3f);
                GLBoxRenderer.renderBox(w,h,w);
                
                //render edges
                GL11.glPolygonOffset(0,0);
                GL11.glColor4f(1,1,1,1);
                GLBoxRenderer.renderFrame(w,h,w);
        }
}

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