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Code Issues Releases Wiki Activity

Link up the evaluation and the UI buttons.

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This commit is contained in:
Danila Fedorin 2017-07-31 17:17:56 -07:00
parent 41395f09f9
commit 8c935983b2
2 changed files with 39 additions and 3 deletions
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34
src/main/java/org/nwapw/abacus/fx/AbacusController.java
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@ -1,10 +1,25 @@
package org.nwapw.abacus.fx;
import javafx.fxml.FXML;
import javafx.scene.control.Button;
import javafx.scene.control.TextField;
import javafx.scene.text.Text;
import org.nwapw.abacus.Abacus;
import org.nwapw.abacus.number.NumberInterface;
import org.nwapw.abacus.tree.TreeNode;
public class AbacusController {
private static final String ERR_SYNTAX = "Syntax Error";
private static final String ERR_EVAL = "Evaluation Error";
@FXML
private Text outputText;
@FXML
private TextField inputField;
@FXML
private Button inputButton;
private Abacus abacus;
@FXML
@ -12,4 +27,23 @@ public class AbacusController {
abacus = new Abacus();
}
@FXML
private void performCalculation(){
inputButton.setDisable(true);
TreeNode constructedTree = abacus.parseString(inputField.getText());
if(constructedTree == null){
outputText.setText(ERR_SYNTAX);
inputButton.setDisable(false);
return;
}
NumberInterface evaluatedNumber = abacus.evaluateTree(constructedTree);
if(constructedTree == null){
outputText.setText(ERR_EVAL);
inputButton.setDisable(false);
return;
}
inputButton.setDisable(false);
outputText.setText(evaluatedNumber.toString());
}
}

8
src/main/resources/abacus.fxml
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@ -4,6 +4,7 @@
<?import javafx.scene.layout.*?>
<?import javafx.geometry.Insets?>
<?import javafx.scene.text.Text?>
<BorderPane xmlns="http://javafx.com/javafx"
xmlns:fx="http://javafx.com/fxml"
fx:controller="org.nwapw.abacus.fx.AbacusController">
@ -15,9 +16,10 @@
<VBox>
<ScrollPane prefHeight="50" vbarPolicy="NEVER">
<padding><Insets top="10" bottom="10" left="10" right="10"/></padding>
<Text fx:id="outputText"/>
</ScrollPane>
<TextField text="Input"/>
<Button text="Calculate" maxWidth="Infinity"/>
<TextField fx:id="inputField" onAction="#performCalculation"/>
<Button fx:id="inputButton" text="Calculate" maxWidth="Infinity" onAction="#performCalculation"/>
</VBox>
</bottom>
</BorderPane>
@ -25,5 +27,5 @@
<Tab text="Settings" closable="false"/>
</TabPane>
</center>
</BorderPane>