package org.rosuda.JGR.toolkit;

//
//JavaGD.java
//JRGui
//
//Created by Simon Urbanek on Wed Apr 28 2004.
//Copyright (c) 2004 Simon Urbanek. All rights reserved.
//
//$Id$



import java.awt.event.ActionListener;
import java.awt.event.ActionEvent;
import java.awt.event.WindowListener;
import java.awt.event.WindowEvent;
import java.awt.FileDialog;

import org.rosuda.javaGD.GDInterface;

/** Implementation of {@see JavaGD} which uses iFrame instead of Frame */
public class JavaGD extends GDInterface implements ActionListener, WindowListener {
    iFrame jfr;
    
    static int count = 0;

    /**
     * Open JavaGD device.
     */
    public void     gdOpen(double w, double h) {
        open=true;
        if (jfr!=null) gdClose();

        jfr=new iFrame("JavaGD", iFrame.clsJavaGD) {
        	public void dispose() {
                if (c!=null) executeDevOff();
				super.dispose();
        	}
        };        
        jfr.addWindowListener(this);

        String[] Menu = { "+","File","Save as PDF...","savePDF","Save as EPS...","saveEPS","+","Edit","@CCopy (as image)","copyImg","~Window", "0" };
        iMenu.getMenu(jfr, this, Menu);

        jfr.setDefaultCloseOperation(javax.swing.JFrame.DISPOSE_ON_CLOSE);
        c=new org.rosuda.javaGD.JGDBufferedPanel(w, h);
        jfr.getContentPane().add((org.rosuda.javaGD.JGDPanel)c);
        jfr.setSize((int)w,(int)h);
        jfr.pack();
        jfr.setVisible(true);
    }
    
    /**
     * Create new page.
     */
    public void     gdNewPage(int devNr) {
        super.gdNewPage(devNr);
        jfr.setTitle("JavaGD ("+(getDeviceNumber()+1)+")"+(active?" *active*":""));
    }

    /**
     * Activate device.
     */
    public void     gdActivate() {
        super.gdActivate();
        jfr.toFront();
        jfr.setTitle("JavaGD "+((getDeviceNumber()>0)?("("+(getDeviceNumber()+1)+")"):"")+" *active*");
    }

    /**
     * Deactivate device.
     */
    public void     gdDeactivate() {
        super.gdDeactivate();
        jfr.setTitle("JavaGD ("+(getDeviceNumber()+1)+")");
    }
    
    /**
     * Close device.
     */
    public void     gdClose() {
        super.gdClose();
        if (jfr!=null) {
            c=null;
            jfr.getContentPane().removeAll();
            jfr.dispose();
            jfr=null;
        }
    }

	String getFileDlg(boolean newFile,String suffix) {
		FileSelector fd = new FileSelector(jfr, (!newFile)?"Select a file":"Select a new file", (!newFile)?FileSelector.LOAD:FileSelector.SAVE,org.rosuda.JGR.JGR.directory);
		fd.setVisible(true);
		String res=null;
		if (fd.getDirectory()!=null && fd.getFile() != null) res=fd.getDirectory();
		if (fd.getFile()!=null) res=(res==null)?fd.getFile():(res+fd.getFile());
		return res;}
	
	String escapeStr(String s) {
		int i=0;
		StringBuffer r=new StringBuffer(s.length()+16);
		while (i<s.length()) {
			char c=s.charAt(i);
			if (c=='"' || c=='\\') r.append("\\");
			r.append(c);
			i++;
		}
		return r.toString();
	}

	/**
	 * actionPerformed: handle action event: menus.
	 */
    public void actionPerformed(ActionEvent e) {
        String cmd = e.getActionCommand();
        if (cmd.equals("copyImg"))
            org.rosuda.util.ImageSelection.copyComponent((java.awt.Component)c,false,true);
		if (cmd.equals("savePDF")) {
			String fn = getFileDlg(true,"pdf");
			if (fn!=null) {
				fn=escapeStr(fn);
				org.rosuda.JRI.Rengine.getMainEngine().eval(".jgr.save.JavaGD.as(useDevice=pdf, source="+(getDeviceNumber()+1)+", file=\""+fn+"\",onefile=TRUE, paper=\"special\")");
			}
		}
		if (cmd.equals("saveEPS")) {
			String fn = getFileDlg(true,"eps");
			if (fn!=null) {
				fn=escapeStr(fn);
				org.rosuda.JRI.Rengine.getMainEngine().eval(".jgr.save.JavaGD.as(useDevice=postscript, "+(getDeviceNumber()+1)+", file=\""+fn+"\",onefile=TRUE, paper=\"special\")");
			}
		}
    }

    public void windowClosing(WindowEvent e) {
        if (c!=null) executeDevOff();
    }
    public void windowClosed(WindowEvent e) {}
    public void windowOpened(WindowEvent e) {}
    public void windowIconified(WindowEvent e) {}
    public void windowDeiconified(WindowEvent e) {}
    public void windowActivated(WindowEvent e) {}
    public void windowDeactivated(WindowEvent e) {}    
}