private void kochPanelMouseDragged(MouseEvent event) {
zoomTranslateX = zoomTranslateX + event.getX() - lastDragX;
zoomTranslateY = zoomTranslateY + event.getY() - lastDragY;
lastDragX = event.getX();
lastDragY = event.getY();
kochManager.drawEdges();
}
private void decreaseLevelButtonActionPerformed(ActionEvent event) {
if (currentLevel > 1) {
// resetZoom();
currentLevel--;
labelLevel.setText("Level: " + currentLevel);
kochManager.ChangeLevel(currentLevel);
}
}
private void increaseLevelButtonActionPerformed(ActionEvent event) {
if (currentLevel < 12) {
// resetZoom();
currentLevel++;
labelLevel.setText("Level: " + currentLevel);
kochManager.changeLevel(currentLevel);
}
}
private void kochPanelMouseClicked(MouseEvent event) {
if (Math.abs(event.getX() - startPressedX) < 1.0
&& Math.abs(event.getY() - startPressedY) < 1.0) {
double originalPointClickedX = (event.getX() - zoomTranslateX) / zoom;
double originalPointClickedY = (event.getY() - zoomTranslateY) / zoom;
if (event.getButton() == MouseButton.PRIMARY) {
zoom *= 2.0;
} else if (event.getButton() == MouseButton.SECONDARY) {
zoom /= 2.0;
}
zoomTranslateX = (int) (event.getX() - originalPointClickedX * zoom);
zoomTranslateY = (int) (event.getY() - originalPointClickedY * zoom);
kochManager.drawEdges();
}
}
@Override
public void start(Stage primaryStage) {
// Define grid pane
GridPane grid;
grid = new GridPane();
grid.setHgap(10);
grid.setVgap(10);
grid.setPadding(new Insets(25, 25, 25, 25));
// For debug purposes
// Make de grid lines visible
// grid.setGridLinesVisible(true);
// Drawing panel for Koch fractal
kochPanel = new Canvas(kpWidth, kpHeight);
grid.add(kochPanel, 0, 4, 25, 1);
// Labels to present number of edges for Koch fractal
labelNrEdges = new Label("Nr edges:");
labelNrEdgesText = new Label();
grid.add(labelNrEdges, 0, 0, 4, 1);
grid.add(labelNrEdgesText, 3, 0, 22, 1);
// Labels to present time of calculation for Koch fractal
labelCalc = new Label("Calculating:");
labelCalcText = new Label();
grid.add(labelCalc, 0, 1, 4, 1);
grid.add(labelCalcText, 3, 1, 22, 1);
// Labels to present time of drawing for Koch fractal
labelDraw = new Label("Drawing:");
labelDrawText = new Label();
grid.add(labelDraw, 0, 2, 4, 1);
grid.add(labelDrawText, 3, 2, 22, 1);
// Label to present current level of Koch fractal
labelLevel = new Label("Level: " + currentLevel);
grid.add(labelLevel, 0, 6);
// Button to increase level of Koch fractal
Button buttonIncreaseLevel = new Button();
buttonIncreaseLevel.setText("Increase Level");
buttonIncreaseLevel.setOnAction(
new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
increaseLevelButtonActionPerformed(event);
}
});
grid.add(buttonIncreaseLevel, 3, 6);
// Button to decrease level of Koch fractal
Button buttonDecreaseLevel = new Button();
buttonDecreaseLevel.setText("Decrease Level");
buttonDecreaseLevel.setOnAction(
new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
decreaseLevelButtonActionPerformed(event);
}
});
grid.add(buttonDecreaseLevel, 5, 6);
// Button to fit Koch fractal in Koch panel
Button buttonFitFractal = new Button();
buttonFitFractal.setText("Fit Fractal");
buttonFitFractal.setOnAction(
new EventHandler<ActionEvent>() {
@Override
public void handle(ActionEvent event) {
fitFractalButtonActionPerformed(event);
}
});
grid.add(buttonFitFractal, 14, 6);
// Add mouse clicked event to Koch panel
kochPanel.addEventHandler(
MouseEvent.MOUSE_CLICKED,
new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
kochPanelMouseClicked(event);
}
});
// Add mouse pressed event to Koch panel
kochPanel.addEventHandler(
MouseEvent.MOUSE_PRESSED,
new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
kochPanelMousePressed(event);
}
});
// Add mouse dragged event to Koch panel
kochPanel.setOnMouseDragged(
new EventHandler<MouseEvent>() {
@Override
public void handle(MouseEvent event) {
kochPanelMouseDragged(event);
}
});
// Adding progress bars and their info
Label LeftLabel = new Label("Left Progress");
lblLeftCalc = new Label(". . . . .");
grid.add(lblLeftCalc, 7, 10);
grid.add(LeftLabel, 1, 5);
grid.add(progressBarLeft, 2, 5);
Label RightLabel = new Label("Right Progress");
lblRightCalc = new Label(". . . . .");
grid.add(lblRightCalc, 7, 11);
grid.add(RightLabel, 1, 6);
grid.add(progressBarRight, 2, 6);
Label BottomLabel = new Label("Bottom Progress");
lblBottomCalc = new Label(". . . . .");
grid.add(lblBottomCalc, 7, 12);
grid.add(BottomLabel, 1, 7);
grid.add(progressBarBottom, 2, 7);
// Create Koch manager and set initial level
resetZoom();
kochManager = new KochManager(this);
kochManager.ChangeLevel(currentLevel);
// Create the scene and add the grid pane
Group root = new Group();
Scene scene = new Scene(root, kpWidth + 50, kpHeight + 170);
root.getChildren().add(grid);
// Define title and assign the scene for main window
primaryStage.setTitle("Koch Fractal");
primaryStage.setScene(scene);
primaryStage.show();
}
private void fitFractalButtonActionPerformed(ActionEvent event) {
resetZoom();
kochManager.drawEdges();
}