com.lushprojects.circuitjs1.client.circuitjs1.java Source code

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Here is the source code for com.lushprojects.circuitjs1.client.circuitjs1.java

Source

/*    
Copyright (C) Paul Falstad and Iain Sharp
    
This file is part of CircuitJS1.
    
CircuitJS1 is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
    
CircuitJS1 is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.
    
You should have received a copy of the GNU General Public License
along with CircuitJS1.  If not, see <http://www.gnu.org/licenses/>.
*/

package com.lushprojects.circuitjs1.client;

import java.util.HashMap;

//CirSim.java (c) 2010 by Paul Falstad
//GWT conversion (c) 2015, 2016 by Iain Sharp

//Version History
//v1.9.1js 16-11-06 Iain Sharp
//Add import of file from CORS compatible link
//v1.9.0js 16-11-06 Iain Sharp
// Add URL-shortener and Dropbox integration
//v1.8.0js 16-10-30 Iain Sharp
// Incorporate latest Falstad updates. Improvements to UI and bug fixes
//v1.0.1 15-06-15
//Convert source code to GPLv2
//Incorporate example files in to project
//v1.0.0 15-06-05
//Import/export to/from text now fixed
//v0.1.3 15-06-03
//Handles appear on components when dragged
//Improved integration of potentiometers and VarRails with sliders - colour changes and support
//for scroll wheel.
//v0.1.2 15-06-01
//Automatic selection of post drag mode when user is near a handle in select mode
//Visual appearance of handles changed
//Accepts "2k2" style engineers short-hand for component values
//Menus prettified
//v0.1.1 
//Bug fix for PNP transistors and past
//v0.1.0 - 
//Initial test release on web

//ToDos
// Scope improvements
//UI improvements
//Potentiometer - improve drawing code
//Coil drawing - find out why my alternative code doesn't work

import com.google.gwt.core.client.EntryPoint;
import com.google.gwt.core.client.GWT;
import com.google.gwt.event.logical.shared.ResizeEvent;
import com.google.gwt.event.logical.shared.ResizeHandler;
import com.google.gwt.http.client.Request;
import com.google.gwt.http.client.RequestBuilder;
import com.google.gwt.http.client.RequestCallback;
import com.google.gwt.http.client.RequestException;
import com.google.gwt.http.client.Response;
import com.google.gwt.user.client.Window;
import com.google.gwt.user.client.Window.ClosingEvent;

public class circuitjs1 implements EntryPoint {

    public static final String versionString = "2.1.5js (pfalstad)";

    // Set to true if the server runs the shortrelay.php file in the same directory as the circuit simulator
    public static final boolean shortRelaySupported = true;

    static CirSim mysim;
    HashMap<String, String> localizationMap;

    public void onModuleLoad() {
        localizationMap = new HashMap<String, String>();

        loadLocale();
    }

    native String language() /*-{
                             return navigator.languages ? navigator.languages[0] : (navigator.language || navigator.userLanguage) ;  
                             }-*/;

    void loadLocale() {
        String url;
        String lang = language();
        GWT.log("got language " + lang);
        if (lang.startsWith("en")) {
            // no need to load locale file for English
            loadSimulator();
            return;
        }
        if (lang.startsWith("de-"))
            lang = "de";
        url = GWT.getModuleBaseURL() + "locale_" + lang + ".txt";
        RequestBuilder requestBuilder = new RequestBuilder(RequestBuilder.GET, url);
        try {
            requestBuilder.sendRequest(null, new RequestCallback() {
                public void onError(Request request, Throwable exception) {
                    GWT.log("File Error Response", exception);
                }

                public void onResponseReceived(Request request, Response response) {
                    // processing goes here
                    if (response.getStatusCode() == Response.SC_OK) {
                        String text = response.getText();
                        processLocale(text);
                        // end or processing
                    } else {
                        GWT.log("Bad file server response:" + response.getStatusText());
                        loadSimulator();
                    }
                }
            });
        } catch (RequestException e) {
            GWT.log("failed file reading", e);
        }

    }

    void processLocale(String data) {
        String lines[] = data.split("\r?\n");
        int i;
        for (i = 0; i != lines.length; i++) {
            String line = lines[i];
            if (line.length() == 0)
                continue;
            if (line.charAt(0) != '"') {
                CirSim.console("ignoring line in string catalog: " + line);
                continue;
            }
            int q2 = line.indexOf('"', 1);
            if (q2 < 0 || line.charAt(q2 + 1) != '=' || line.charAt(q2 + 2) != '"'
                    || line.charAt(line.length() - 1) != '"') {
                CirSim.console("ignoring line in string catalog: " + line);
                continue;
            }
            String str1 = line.substring(1, q2);
            String str2 = line.substring(q2 + 3, line.length() - 1);
            localizationMap.put(str1, str2);
        }
        loadSimulator();
    }

    public void loadSimulator() {
        mysim = new CirSim();
        mysim.localizationMap = localizationMap;
        mysim.init();

        Window.addResizeHandler(new ResizeHandler() {

            public void onResize(ResizeEvent event) {
                mysim.setCanvasSize();
                mysim.setiFrameHeight();

            }
        });

        /*
        Window.addWindowClosingHandler(new Window.ClosingHandler() {
            
            public void onWindowClosing(ClosingEvent event) {
           event.setMessage("Are you sure?");
            }
        });
         */

        mysim.updateCircuit();

    }

}