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Code Issues Releases Wiki Activity

Add stop function by ignoring result of calculations

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This commit is contained in:
rileyJones 2017-08-01 12:06:58 -07:00
parent dd915136c6
commit f464bcff6f
1 changed files with 83 additions and 33 deletions
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116
src/main/java/org/nwapw/abacus/window/Window.java
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@ -24,7 +24,7 @@ public class Window extends JFrame {
private static final String NUMBER_SYSTEM_LABEL = "Number Type:";
private static final String FUNCTION_LABEL = "Functions:";
private static final String STOP_STRING = "Stop";
private static final String STOPPED_TEXT = "Stop";
private static final String STOPPED_TEXT = "Stopped";
/**
* Array of Strings to which the "calculate" button's text
* changes. For instance, in the graph tab, the name will
@ -119,43 +119,85 @@ public class Window extends JFrame {
* The list of functions available to the user.
*/
private JComboBox<String> functionList;
/**
* Thread used for calculations
*/
private Thread calculateThread;
/**
* Check if currently calculating
*/
private boolean calculating;
private int count;
//private Object monitor;
/**
* Action listener that causes the input to be evaluated.
*/
//*
private ActionListener stopListener = (event) -> {
contComputation=false;
};
private ActionListener evaluateListener = (event) -> {
contComputation = true;
TreeNode parsedExpression = abacus.parseString(inputField.getText());
if(contComputation) {
if (parsedExpression == null) {
lastOutputArea.setText(SYNTAX_ERR_STRING);
return;
//contComputation=false;
//Long pause = Long.MAX_VALUE;
//System.out.println(Thread.currentThread().getName());
//System.out.println(calculateThread.getName());
//calculateThread.suspend();
System.out.println(count++);
calculating = false;
/*
synchronized(calculateThread) {
try {
calculateThread.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
NumberInterface numberInterface = null;
if(contComputation)
numberInterface = abacus.evaluateTree(parsedExpression);
if(contComputation) {
if (numberInterface == null) {
lastOutputArea.setText(EVAL_ERR_STRING);
return;
}}
if(contComputation)
lastOutput = numberInterface.toString();
if(contComputation)
historyModel.addEntry(new HistoryTableModel.HistoryEntry(inputField.getText(), parsedExpression, lastOutput));
if(contComputation)
historyTable.invalidate();
if(contComputation)
lastOutputArea.setText(lastOutput);
else
lastOutputArea.setText(STOPPED_TEXT);
inputField.setText("");
//*/
};//*/
private ActionListener evaluateListener = (event) -> {
//contComputation = true;
Runnable calculate = new Runnable() {
public void run() {
boolean skip = false;
calculating = true;
TreeNode parsedExpression = null;
parsedExpression = abacus.parseString(inputField.getText());
if (parsedExpression == null) {
lastOutputArea.setText(SYNTAX_ERR_STRING);
skip = true;
}
/*
try {
Thread.currentThread().sleep(9999);
} catch (InterruptedException e) {
e.printStackTrace();
} catch (IllegalMonitorStateException e){
e.printStackTrace();
}
//*/
//NumberInterface numberInterface = null;
if(!skip){
NumberInterface numberInterface = abacus.evaluateTree(parsedExpression);
if (numberInterface == null) {
lastOutputArea.setText(EVAL_ERR_STRING);
return;
}
if(calculateThread.equals(Thread.currentThread())) {
lastOutput = numberInterface.toString();
historyModel.addEntry(new HistoryTableModel.HistoryEntry(inputField.getText(), parsedExpression, lastOutput));
historyTable.invalidate();
lastOutputArea.setText(lastOutput);
inputField.setText("");
calculating = false;
}
}
}
};
if(!calculating) {
calculateThread = new Thread(calculate);
calculateThread.setName("a-"+System.currentTimeMillis());
calculateThread.start();
}
};
/**
@ -182,7 +224,9 @@ public class Window extends JFrame {
*/
private Window() {
super();
contComputation = true;
lastOutput = "";
setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
@ -194,8 +238,9 @@ public class Window extends JFrame {
inputPanel = new JPanel();
inputPanel.setLayout(new BorderLayout());
inputPanel.add(inputField, BorderLayout.CENTER);
inputPanel.add(inputEnterButton, BorderLayout.SOUTH);
inputPanel.add(inputStopButton, BorderLayout.SOUTH);
inputPanel.add(inputField, BorderLayout.NORTH);
inputPanel.add(inputEnterButton, BorderLayout.CENTER);
historyModel = new HistoryTableModel();
historyTable = new JTable(historyModel);
@ -232,6 +277,8 @@ public class Window extends JFrame {
settingsPanel.add(numberSystemPanel);
settingsPanel.add(functionSelectPanel);
calculating = false;
pane = new JTabbedPane();
pane.add("Calculator", calculationPanel);
pane.add("Settings", settingsPanel);
@ -246,10 +293,12 @@ public class Window extends JFrame {
for (ActionListener removingListener : inputEnterButton.getActionListeners()) {
inputEnterButton.removeActionListener(removingListener);
inputField.removeActionListener(removingListener);
inputStopButton.removeActionListener(removingListener);
}
if (listener != null) {
inputEnterButton.addActionListener(listener);
inputField.addActionListener(listener);
inputStopButton.addActionListener(listener);
}
});
add(pane, BorderLayout.CENTER);
@ -257,6 +306,7 @@ public class Window extends JFrame {
inputEnterButton.addActionListener(evaluateListener);
inputField.addActionListener(evaluateListener);
inputStopButton.addActionListener(stopListener);
historyTable.addMouseListener(new MouseAdapter() {
@Override
public void mouseClicked(MouseEvent e) {