1
0
mirror of https://github.com/DanilaFe/abacus synced 2024-12-22 15:30:09 -08:00

Implement a table as a history tracker.

This commit is contained in:
Danila Fedorin 2017-07-26 14:34:19 -07:00
parent 50baf80433
commit e41c25847b
2 changed files with 124 additions and 8 deletions

View File

@ -0,0 +1,97 @@
package org.nwapw.abacus.window;
import org.nwapw.abacus.tree.TreeNode;
import javax.swing.event.TableModelListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;
import java.util.ArrayList;
public class HistoryTableModel extends AbstractTableModel {
public static final String[] COLUMN_NAMES = {
"Input",
"Parsed Input",
"Output"
};
public static final Class[] CLASS_TYPES = {
String.class,
TreeNode.class,
String.class
};
public static class HistoryEntry {
public String input;
public TreeNode parsedInput;
public String output;
public HistoryEntry(String input, TreeNode parsedInput, String output){
this.input = input;
this.parsedInput = parsedInput;
this.output = output;
}
Object nthValue(int n){
if(n == 0) return input;
if(n == 1) return parsedInput;
if(n == 2) return output;
return null;
}
}
ArrayList<HistoryEntry> entries;
public HistoryTableModel() {
entries = new ArrayList<>();
}
public void addEntry(HistoryEntry entry){
entries.add(entry);
}
@Override
public int getRowCount() {
return entries.size();
}
@Override
public int getColumnCount() {
return 3;
}
@Override
public String getColumnName(int columnIndex) {
return COLUMN_NAMES[columnIndex];
}
@Override
public Class<?> getColumnClass(int columnIndex) {
return CLASS_TYPES[columnIndex];
}
@Override
public boolean isCellEditable(int rowIndex, int columnIndex) {
return false;
}
@Override
public Object getValueAt(int rowIndex, int columnIndex) {
return entries.get(rowIndex).nthValue(columnIndex);
}
@Override
public void setValueAt(Object aValue, int rowIndex, int columnIndex) {
return;
}
@Override
public void addTableModelListener(TableModelListener l) {
}
@Override
public void removeTableModelListener(TableModelListener l) {
}
}

View File

@ -45,13 +45,17 @@ public class Window extends JFrame {
*/
private JTextArea lastOutputArea;
/**
* The text area used for all history output.
* The table used for storing history results.
*/
private JTextArea historyArea;
private JTable historyTable;
/**
* The table model used for managing history.
*/
private HistoryTableModel historyModel;
/**
* The scroll pane for the history area.
*/
private JScrollPane historyAreaScroll;
private JScrollPane historyScroll;
/**
* The panel where the input occurs.
@ -109,7 +113,6 @@ public class Window extends JFrame {
private Window() {
super();
history = "";
lastOutput = "";
@ -123,15 +126,15 @@ public class Window extends JFrame {
inputPanel.add(inputField, BorderLayout.CENTER);
inputPanel.add(inputEnterButton, BorderLayout.EAST);
historyArea = new JTextArea(history);
historyAreaScroll = new JScrollPane(historyArea);
historyModel = new HistoryTableModel();
historyTable = new JTable(historyModel);
historyScroll = new JScrollPane(historyTable);
lastOutputArea = new JTextArea(lastOutput);
lastOutputArea.setEditable(false);
lastOutputArea.setText(":)");
outputPanel = new JPanel();
outputPanel.setLayout(new BorderLayout());
outputPanel.add(historyAreaScroll, BorderLayout.CENTER);
outputPanel.add(historyScroll, BorderLayout.CENTER);
outputPanel.add(lastOutputArea, BorderLayout.SOUTH);
numberSystemList = new JComboBox<>();
@ -158,5 +161,21 @@ public class Window extends JFrame {
add(outputPanel, BorderLayout.CENTER);
add(sidePanel, BorderLayout.EAST);
add(inputPanel, BorderLayout.SOUTH);
inputEnterButton.addActionListener((event) -> {
TreeNode parsedExpression = TreeNode.fromString(inputField.getText());
if(parsedExpression == null){
lastOutputArea.setText(SYNTAX_ERR_STRING);
return;
}
lastOutput = parsedExpression.reduce(reducer).toString();
history += (history.length() == 0) ? "" : "\n\n";
history += lastOutput;
historyModel.addEntry(new HistoryTableModel.HistoryEntry(inputField.getText(), parsedExpression, lastOutput));
historyTable.invalidate();
lastOutputArea.setText(lastOutput);
inputField.setText(lastOutput);
});
}
}