Add Java Fields Display

Author: UltimatePea

src/actions/AddLazyJavaFieldsComponentAction.java

@@ -0,0 +1,44 @@
+package actions;
+
+import actions.menu.ActionsMenuBarTitles;
+import paintcomponents.java.lazy.ClassPaintComponent;
+import paintcomponents.java.lazy.FieldsPaintComponent;
+import ui.PaintPanel;
+
+public class AddLazyJavaFieldsComponentAction extends PaintAction {
+
+public AddLazyJavaFieldsComponentAction(PaintPanel panel) {
+		super(panel);
+	}
+	//TODO
+	//NOTE: I am copying from Constructor and Methods, consider refinement
+	@Override
+	public boolean canPerformAction() {
+		if (panel.getSelectTool().getSelectedComponents().size() != 1) {
+			return false;
+		}
+		if (panel.getSelectTool().getSelectedComponents()
+				.get(0) instanceof ClassPaintComponent) {
+			return true;
+		}
+		return false;
+	}
+	@Override
+	public void performAction() {
+	ClassPaintComponent comp = (ClassPaintComponent) panel.getSelectTool()
+				.getSelectedComponents().get(0);
+
+		FieldsPaintComponent fieldsComp =
+				new FieldsPaintComponent(comp.getDisplayingClass(),
+				panel.getWidth() / 2,
+				panel.getHeight() / 2);
+		panel.addPaintComponent(fieldsComp);
+		panel.repaint();
+	}
+
+	@Override
+	public String locationString() {
+		return ActionsMenuBarTitles.Lazy().Add().Java_Fields().toString();
+	}
+
+}

src/actions/menu/ActionsMenuBar.java

@@ -13,6 +13,7 @@
 import actions.AddDataInputBoxAction;
 import actions.AddLazyJavaClassAction;
 import actions.AddLazyJavaConstructorAction;
+import actions.AddLazyJavaFieldsComponentAction;
 import actions.AddLazyJavaMethodComponentAction;
 import actions.AddTextBoxAction;
 import actions.ConstructDataLineSegmentAction;
@@ -42,6 +43,7 @@ public ActionsMenuBar(PaintPanel panel){
 		addAction(new AddLazyJavaClassAction(panel));
 		addAction(new AddLazyJavaConstructorAction(panel));
 		addAction(new AddLazyJavaMethodComponentAction(panel));
+		addAction(new AddLazyJavaFieldsComponentAction(panel));
 
 	}
 

src/actions/menu/ActionsMenuBarTitles.java

@@ -79,6 +79,11 @@ public ActionsMenuBarTitles Java_Method() {
 		append("Java Method");
 		return this;
 	}
+
+	public ActionsMenuBarTitles Java_Fields() {
+		append("Java Fields");
+		return this;
+	}
 
 
 }

src/paintcomponents/data/DataDisplayPaintComponent.java

@@ -12,11 +12,10 @@
 //TODO THIS class is a copy of DataInputTextfieldPaintComponent class, please consider abstraction
 public class DataDisplayPaintComponent extends DataTextIOPaintComponent {
 
-	private DataToPoint toPoint;
 
 	public DataDisplayPaintComponent(String displayingText, int x, int y) {
 		super(displayingText, x, y);
-		this.toPoint = addToPoint(0);
+		addToPoint(0);
 	}
 
 	/**
@@ -30,7 +29,7 @@ public DataDisplayPaintComponent(String displayingText, int x, int y) {
 	 * @see DataToPoint.fetchData for exception details
 	 */
 	public void updateDisplayText() throws NoSuchElementException, NoConnectingLineSegmentException, DataFromPointNoDataProviderException, DataFromPointProviderCannotProvideDataException{
-		Object data = toPoint.fetchData();
+		Object data = getToPoints().get(0).fetchData();
 		if(data instanceof String){
 			this.setDisplayingText(data.toString());
 		} else {

src/paintcomponents/data/DataTextIOPaintComponent.java

@@ -91,10 +91,9 @@ public void addFromPoint(DataFromPointDataProvider provider, int yShift) {
 	 *            the row number
 	 * @return the added toPoint
 	 */
-	public DataToPoint addToPoint(int yShift) {
+	public void addToPoint(int yShift) {
 		DataToPoint toPoint = new DataToPoint(getX(), getY());
 		toPoints.add(new DataToPointInfo(toPoint, yShift));
-		return toPoint;
 
 	}
 

src/paintcomponents/java/lazy/FieldsPaintComponent.java

@@ -0,0 +1,90 @@
+package paintcomponents.java.lazy;
+
+import java.lang.reflect.Field;
+import java.util.ArrayList;
+import java.util.NoSuchElementException;
+
+import paintcomponents.NoConnectingLineSegmentException;
+import paintcomponents.data.DataFromPoint;
+import paintcomponents.data.DataFromPointDataProvider;
+import paintcomponents.data.DataFromPointNoDataProviderException;
+import paintcomponents.data.DataFromPointProviderCannotProvideDataException;
+import paintcomponents.data.DataTextIOPaintComponent;
+
+public class FieldsPaintComponent extends DataTextIOPaintComponent implements DataFromPointDataProvider{
+	
+	private Class displayingClass;
+
+	public FieldsPaintComponent(Class displayingClass, int x, int y) {
+		super(displayingClass.getName(), x, y);
+		this.displayingClass = displayingClass;
+		
+		init();
+	}
+
+	private void init() {
+		/*
+		 * Line 1 class name
+		 * line 2 in instance
+		 * line 3 .. the fields
+		 */
+		Field[] fields = displayingClass.getFields();
+		
+		//the left receiving instance
+		addToPoint(1);
+		
+		for (int i = 0; i < fields.length; i++) {
+			addFromPoint(this, i + 2);
+		}
+		
+		
+		// prepare String
+		StringBuilder s = new StringBuilder();
+		s.append(this.displayingClass.toString() + "\n");
+		s.append(">>> Operating Instance  :: " 
+				+ "\n");
+		for (int i = 0; i < fields.length; i++) {
+			s.append("arg" + i + " :: " + fields[i].getName() + "\n");
+		}
+
+		setDisplayingText(s.toString());
+
+	}
+
+	@Override
+	public Object provideInformationToDataFromPoint(
+			DataFromPoint dataFromPoint) {
+		int index = getFromPoints().indexOf(dataFromPoint);
+		Field[] fields = displayingClass.getFields();
+		Field field = fields[index];
+		
+		Object operatingInstance = null;
+		try {
+			operatingInstance = getToPoints().get(0).fetchData();
+		} catch (NoSuchElementException | NoConnectingLineSegmentException
+				| DataFromPointNoDataProviderException
+				| DataFromPointProviderCannotProvideDataException e1) {
+			e1.printStackTrace();
+			// TODO Handle Exception
+			// Note: a static method may not contain an valid instance
+			// throw new IllegalStateException();
+		}
+		
+		try {
+			return field.get(operatingInstance);
+		} catch (IllegalArgumentException | IllegalAccessException e) {
+			// TODO Auto-generated catch block
+			e.printStackTrace();
+			// TODO Handle Exception
+			throw new IllegalStateException();
+		}
+	}
+
+	@Override
+	public boolean canProvideInformationToDataFromPoint(
+			DataFromPoint dataFromPoint) {
+		//TODO IMPORTANT Implement this method
+		return true;
+	}
+
+}

src/paintcomponents/java/lazy/MethodPaintComponent.java

@@ -62,7 +62,7 @@ private void init() {
 		// prepare String
 		StringBuilder s = new StringBuilder();
 		s.append(this.displayingMethod.toString() + "\n");
-		s.append(">>> Operating Instance  :: " + this.displayingMethod.toString()
+		s.append(">>> Operating Instance  :: " 
 				+ "\n");
 		for (int i = 0; i < paramTypes.length; i++) {
 			s.append("arg" + i + " :: " + paramTypes[i].getName() + "\n");