public void drawWhiteEdge(Edge e) {
// Graphics
GraphicsContext gc = kochPanel.getGraphicsContext2D();
// Adjust edge for zoom and drag
Edge e1 = edgeAfterZoomAndDrag(e);
// Set line color
gc.setStroke(Color.WHITE);
// Set line width depending on level
if (currentLevel <= 3) {
gc.setLineWidth(2.0);
} else if (currentLevel <= 5) {
gc.setLineWidth(1.5);
} else {
gc.setLineWidth(1.0);
}
// Draw line
gc.strokeLine(e1.X1, e1.Y1, e1.X2, e1.Y2);
}
@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();
}
public void clearKochPanel() {
GraphicsContext gc = kochPanel.getGraphicsContext2D();
gc.clearRect(0.0, 0.0, kpWidth, kpHeight);
gc.setFill(Color.BLACK);
gc.fillRect(0.0, 0.0, kpWidth, kpHeight);
}