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feat: zoom possible, doit fix le scrollpane pour qu'il update ses scrollbars

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This commit is contained in:
Emi Boucly 2025-03-17 14:36:49 +01:00
parent c47b49a616
commit b325204d7d
2 changed files with 59 additions and 2 deletions
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27
graphical-app/src/main/java/fr/emiko/graphicalapp/HelloController.java
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@ -9,10 +9,14 @@ import javafx.scene.canvas.Canvas;
import javafx.scene.control.Label;
import javafx.scene.canvas.GraphicsContext;
import javafx.scene.control.MenuItem;
import javafx.scene.control.ScrollPane;
import javafx.scene.control.Slider;
import javafx.scene.image.PixelReader;
import javafx.scene.image.PixelWriter;
import javafx.scene.image.WritableImage;
import javafx.scene.input.MouseEvent;
import javafx.scene.input.ScrollEvent;
import javafx.scene.input.ZoomEvent;
import javafx.scene.paint.Color;
import javafx.scene.paint.Paint;
import fr.emiko.graphicsElement.Stroke;
@ -27,6 +31,9 @@ public class HelloController implements Initializable {
public MenuItem saveButton;
public MenuItem loadButton;
public MenuItem newCanvasButton;
public Slider brushSizeSlider;
public Slider zoomSlider;
public ScrollPane scrollPane;
private double posX = 0;
private double posY = 0;
private Vector<Stroke> strokes = new Vector<>();
@ -39,8 +46,28 @@ public class HelloController implements Initializable {
saveButton.setOnAction(this::onActionSave);
loadButton.setOnAction(this::onActionLoad);
newCanvasButton.setOnAction(this::onActionCreateCanvas);
scrollPane.setOnScroll(this::onScrollZoom);
}
private void onScrollZoom(ScrollEvent event) {
event.consume();
double SCALE_DELTA = 1.1;
if (event.getDeltaY() == 0) {
return;
}
if (event.isControlDown()) {
double scaleFactor =
(event.getDeltaY() > 0) ? SCALE_DELTA : 1 / SCALE_DELTA;
drawingCanvas.setScaleX(drawingCanvas.getScaleX() * scaleFactor);
drawingCanvas.setScaleY(drawingCanvas.getScaleY() * scaleFactor);
scrollPane.setFitToHeight(true);
scrollPane.setFitToWidth(true);
}
}
private void onActionCreateCanvas(ActionEvent actionEvent) {
}