Source code of MARS Assembler
First commit of the 4.5 version (latest version available)
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adolphenom
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package mars.venus;
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import mars.*;
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import java.io.*;
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/*
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Copyright (c) 2003-2006, Pete Sanderson and Kenneth Vollmar
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Developed by Pete Sanderson (psanderson@otterbein.edu)
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and Kenneth Vollmar (kenvollmar@missouristate.edu)
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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"Software"), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject
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to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR
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ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF
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CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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(MIT license, http://www.opensource.org/licenses/mit-license.html)
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*/
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/**
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* Used to store and return information on the status of the current ASM file that
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* is being edited in the program.
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* @author Team JSpim
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**/
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public class FileStatus{
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/** initial state or after close */
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public static final int NO_FILE = 0;
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/** New edit window with no edits */
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public static final int NEW_NOT_EDITED = 1;
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/** New edit window with unsaved edits */
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public static final int NEW_EDITED = 2;
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/** open/saved edit window with no edits */
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public static final int NOT_EDITED = 3;
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/** open/saved edit window with unsaved edits */
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public static final int EDITED = 4;
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/** successful assembly */
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public static final int RUNNABLE = 5;
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/** execution is under way */
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public static final int RUNNING = 6;
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/** execution terminated */
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public static final int TERMINATED = 7;
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/** file is being opened. DPS 9-Aug-2011 */
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public static final int OPENING = 8;
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///////////////////////////////////////////////////////////////////
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// //
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// The static part. Legacy code from original student team's //
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// 2003 Practicum project through MARS 3.8, when the editor //
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// was limited to one file. The status of that file became //
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// the de facto status of the system. Should have used a //
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// singleton class but in 2003 did not know what that was! //
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// My plan is to phase out all statics but the constants //
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// in MARS 4.0 but will keep it in place while at the same time //
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// defining non-static members for use by individual files //
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// currently opened in the editor. DPS, 9 April 2010. //
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// //
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///////////////////////////////////////////////////////////////////
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private static int systemStatus; // set to one of the above
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private static boolean systemAssembled;
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private static boolean systemSaved;
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private static boolean systemEdited;
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private static String systemName;
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private static File systemFile;
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/**
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* Set file status. Also updates menu state accordingly.
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*
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* @param newStatus New status: EDITED, RUNNABLE, etc, see list above.
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*/
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public static void set(int newStatus) {
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systemStatus = newStatus;
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Globals.getGui().setMenuState(systemStatus);
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}
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/**
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* Get file status
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*
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* @return file status EDITED, RUNNABLE, etc, see list above
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*/
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public static int get() {
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return systemStatus;
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}
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/**
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* Changes the value of assenbked to the parameter given.
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* @param b boolean variable that tells what to set assembled to.
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*/
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public static void setAssembled(boolean b){
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systemAssembled= b;
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}
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/**
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* Changes the value of saved to the parameter given.
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* @param b boolean variable that tells what to set saved to .
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*/
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public static void setSaved(boolean b){
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systemSaved= b;
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}
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/**
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* Changes the value of edited to the parameter given.
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* @param b boolean variable that tells what to set edited to.
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*/
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public static void setEdited(boolean b){
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systemEdited= b;
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}
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/**
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* Changes the value of name to the parameter given.
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* @param s string variable tells what to set the name of the file to .
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*/
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public static void setName(String s){
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systemName = s;
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}
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/**
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* Sets the file to the ASM file passed.
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* @param f file object variable that stores the ASM file.
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*/
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public static void setFile(File f){
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systemFile = f;
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}
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/**
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* Returns the ASM file.
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* @return The ASM file.
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*/
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public static File getFile(){
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return systemFile;
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}
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/**
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* Returns the name of the file.
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* @return The name of the ASM file.
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*/
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public static String getName(){
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return systemName;
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}
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/**
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* Tells whether the file has been assembled.
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* @return Boolean value that is true if the ASM file has been assembled.
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*/
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public static boolean isAssembled(){
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return systemAssembled;
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}
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/**
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* Tells whether the file has been saved.
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* @return Boolean variable that is true if the ASM file has been saved
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*/
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public static boolean isSaved(){
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return systemSaved;
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}
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/**
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* Tells whether the file has been edited since it has been saved.
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* @return Boolean value that returns true if the ASM file has been edited.
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*/
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public static boolean isEdited(){
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return systemEdited;
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}
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/**
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* Resets all the values in FileStatus
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*/
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public static void reset(){
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systemStatus = NO_FILE;
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systemName= "";
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systemAssembled= false;
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systemSaved= false;
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systemEdited= false;
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systemFile= null;
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}
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///////////////////// END OF STATIC PART ///////////////////////
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///////////////////////////////////////////////////////////////////
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// Remaining members are of instantiable class that can be used by
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// every file that is currently open in the editor.
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private int status;
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private File file;
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/**
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* Create a FileStatus object with FileStatis.NO_FILE for status and null for file getters.
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*/
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public FileStatus() {
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this(FileStatus.NO_FILE,null);
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}
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/**
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* Create a FileStatus object with given status and file pathname.
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*
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* @param status Initial file status. See FileStatus static constants.
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* @param pathname Full file pathname. See setPathname(String newPath) below.
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*/
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public FileStatus(int status, String pathname) {
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this.status = status;
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if (pathname==null) {
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this.file = null;
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}
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else {
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setPathname(pathname);
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}
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}
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/**
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* Set editing status of this file. See FileStatus static constants.
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*
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* @param newStatus the new status
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*/
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public void setFileStatus(int newStatus) {
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this.status = newStatus;
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}
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/**
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* Get editing status of this file.
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*
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* @return current editing status. See FileStatus static constants.
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*/
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public int getFileStatus() {
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return this.status;
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}
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/**
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* Determine if file is "new", which means created using New but not yet saved.
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* If created using Open, it is not new.
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*
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* @return true if file was created using New and has not yet been saved, false otherwise.
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*/
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public boolean isNew() {
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return status == FileStatus.NEW_NOT_EDITED || status == FileStatus.NEW_EDITED;
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}
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/**
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* Determine if file has been modified since last save or, if not yet saved, since
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* being created using New or Open.
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*
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* @return true if file has been modified since save or creation, false otherwise.
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*/
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public boolean hasUnsavedEdits() {
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return status == FileStatus.NEW_EDITED || status == FileStatus.EDITED;
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}
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/**
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* Set full file pathname. See java.io.File(String pathname) for parameter specs.
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*
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* @param newPath the new pathname. If no directory path, getParent() will return null.
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*/
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public void setPathname(String newPath) {
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this.file = new File(newPath);
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}
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/**
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* Set full file pathname. See java.io.File(String parent, String child) for parameter specs.
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*
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* @param parent the parent directory of the file. If null, getParent() will return null.
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* @param name the name of the file (no directory path)
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*/
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public void setPathname(String parent, String name) {
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this.file = new File(parent,name);
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}
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/**
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* Get full file pathname. See java.io.File.getPath()
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*
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* @return full pathname as a String. Null if
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*/
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public String getPathname() {
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return (this.file==null) ? null : this.file.getPath();
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}
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/**
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* Get file name with no path information. See java.io.File.getName()
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*
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* @return filename as a String
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*/
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public String getFilename() {
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return (this.file==null) ? null : this.file.getName();
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}
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/**
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* Get file parent pathname. See java.io.File.getParent()
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*
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* @return parent full pathname as a String
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*/
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public String getParent() {
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return (this.file==null) ? null : this.file.getParent();
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}
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/**
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* Update static FileStatus fields with values from this FileStatus object
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* To support legacy code that depends on the static.
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*/
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public void updateStaticFileStatus() {
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systemStatus = this.status;
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systemName= this.file.getPath();
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systemAssembled= false;
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systemSaved= (status==NOT_EDITED || status==RUNNABLE || status==RUNNING || status==TERMINATED);
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systemEdited= (status==NEW_EDITED || status==EDITED);
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systemFile= this.file;
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}
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}
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