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package com.ugsbo.matrixcalc;
import javafx.fxml.FXML; import javafx.scene.control.*; import javafx.scene.text.Text; import javafx.scene.text.TextAlignment;
public class MatrixCalcController {
// Hier werden die fx:id Attribute verknuepft.
@FXML private Button multiplyButton, addButton, DetAButton, DetBButton, substractButton, transposeButton; @FXML private Text errorText, outputText; @FXML private TextArea matrixATextArea, matrixBTextArea;
private MatrixCalcMath math = new MatrixCalcMath(); private MatrixCalcIOUtils util = new MatrixCalcIOUtils();
/** * Konstructor is called before initialize() */ public MatrixCalcController() { // Setup of some Fields could be defined here.
}
/** * Initializes the controller class. This method is automatically called after * the fxml file has been loaded. */ @FXML public void initialize() { /** * Convert Strings to matricies, multiply them and output the result. */ multiplyButton.setOnMouseClicked((event) -> { String stringMatrixA = matrixATextArea.getText(); String stringMatrixB = matrixBTextArea.getText(); String[] stringMatrix = { stringMatrixA, stringMatrixB };
checkInputAndDisplayIfInputIsNotValid(stringMatrix, 2);
double[][] matrixA = util.stringToMatrix(stringMatrixA); double[][] matrixB = util.stringToMatrix(stringMatrixB); double[][] result = math.matrixMultiplication(matrixA, matrixB);
String DisplayableString = util.outputMatrixToOutputText(result);
outputText.setText(DisplayableString); outputText.setTextAlignment(TextAlignment.CENTER); // System.out.println(matrixATextArea.getText());
});
transposeButton.setOnMouseClicked((event) -> { String stringMatrixA = matrixATextArea.getText(); String[] stringMatrix = { stringMatrixA, "" };
checkInputAndDisplayIfInputIsNotValid(stringMatrix, 1);
double[][] matrixA = util.stringToMatrix(stringMatrixA); double[][] result = math.matrixTransponation(matrixA);
String DisplayableString = util.outputMatrixToOutputText(result);
outputText.setText(DisplayableString); outputText.setTextAlignment(TextAlignment.CENTER); });
addButton.setOnMouseClicked((event) -> { String stringMatrixA = matrixATextArea.getText(); String stringMatrixB = matrixBTextArea.getText(); String[] stringMatrix = { stringMatrixA, stringMatrixB };
checkInputAndDisplayIfInputIsNotValid(stringMatrix, 2);
double[][] matrixA = util.stringToMatrix(stringMatrixA); double[][] matrixB = util.stringToMatrix(stringMatrixB); double[][] result = math.matrixAddition(matrixA, matrixB);
String DisplayableString = util.outputMatrixToOutputText(result);
outputText.setText(DisplayableString); outputText.setTextAlignment(TextAlignment.CENTER); });
substractButton.setOnMouseClicked((event) -> { String stringMatrixA = matrixATextArea.getText(); String stringMatrixB = matrixBTextArea.getText(); String[] stringMatrix = { stringMatrixA, stringMatrixB }; checkInputAndDisplayIfInputIsNotValid(stringMatrix, 2);
double[][] matrixA = util.stringToMatrix(stringMatrixA); double[][] matrixB = util.stringToMatrix(stringMatrixB);
try { double[][] result = math.matrixSubstraction(matrixA, matrixB);
String DisplayableString = util.outputMatrixToOutputText(result);
outputText.setText(DisplayableString); outputText.setTextAlignment(TextAlignment.CENTER); } catch (Exception e) {
outputText.setText(e.getMessage()); outputText.setTextAlignment(TextAlignment.CENTER); } });
DetAButton.setOnMouseClicked((event) -> { String stringMatrixA = matrixATextArea.getText(); String[] stringMatrix = { stringMatrixA, "" };
checkInputAndDisplayIfInputIsNotValid(stringMatrix, 1);
double[][] matrixA = util.stringToMatrix(stringMatrixA);
try { double result = math.calcDeterminat(matrixA);
String DisplayableString = Double.toString(result);
outputText.setText(DisplayableString); outputText.setTextAlignment(TextAlignment.CENTER);
} catch (IllegalArgumentException e) {
outputText.setText(e.getMessage()); outputText.setTextAlignment(TextAlignment.CENTER); } });
DetBButton.setOnMouseClicked((event) -> { String stringMatrixB = matrixBTextArea.getText(); String[] stringMatrix = { "", stringMatrixB };
checkInputAndDisplayIfInputIsNotValid(stringMatrix, 1);
double[][] matrixB = util.stringToMatrix(stringMatrixB);
try { double result = math.calcDeterminat(matrixB);
String DisplayableString = Double.toString(result);
outputText.setText(DisplayableString); outputText.setTextAlignment(TextAlignment.CENTER);
} catch (IllegalArgumentException e) {
outputText.setText(e.getMessage()); outputText.setTextAlignment(TextAlignment.CENTER); } }); }
// TODO Wirte tests for the extracted Methode.
/** * Checks the Input and Displays it if the Input is Valid. * * @param stringMatrix Contains both input matrices if * numberOfMarriciesToMatch is 2. If the number * is 1 than one of them has to be a empty String * @param numberOfMatricesToMatch If the number is 1 onely one Marix will be * verifyed and the otherone needs to be an empty * String in the stringMatrix */ private void checkInputAndDisplayIfInputIsNotValid(String[] stringMatrix, int numberOfMatricesToMatch) { if (numberOfMatricesToMatch == 1 && !stringMatrix[0].equals("")) { try { util.checkInput(stringMatrix[0]); } catch (Exception e) { outputText.setText(e.getMessage() + "A"); outputText.setTextAlignment(TextAlignment.CENTER); } } else if (numberOfMatricesToMatch == 1 && !stringMatrix[1].equals("")) { try { util.checkInput(stringMatrix[1]); } catch (Exception e) { outputText.setText(e.getMessage() + "B"); outputText.setTextAlignment(TextAlignment.CENTER); } } else if (numberOfMatricesToMatch == 2 && !stringMatrix[0].equals("") && !stringMatrix[1].equals("")) { try { util.checkInput(stringMatrix[0]); } catch (Exception e) { outputText.setText(e.getMessage() + "A"); outputText.setTextAlignment(TextAlignment.CENTER); }
try { util.checkInput(stringMatrix[1]); } catch (Exception e) { outputText.setText(e.getMessage() + "B"); outputText.setTextAlignment(TextAlignment.CENTER); } } else if (stringMatrix[0].equals("")) {
outputText.setText("Pease insert MatrixA"); outputText.setTextAlignment(TextAlignment.CENTER);
} else if (stringMatrix[1].equals("")) {
outputText.setText("Pease insert MatrixB"); outputText.setTextAlignment(TextAlignment.CENTER); }
} }
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