From 95b05ba13012fc6fd6da4756dd1b6e2d866d1029 Mon Sep 17 00:00:00 2001 From: Lamposhka Date: Sun, 24 Dec 2023 19:01:20 +0300 Subject: [PATCH 1/2] i am alive --- lab-03/by/lamposhka/paint/Paint.java | 22 +++ .../by/lamposhka/paint/PaintController.java | 157 ++++++++++++++++++ lab-03/by/lamposhka/paint/paint.fxml | 41 +++++ 3 files changed, 220 insertions(+) create mode 100644 lab-03/by/lamposhka/paint/Paint.java create mode 100644 lab-03/by/lamposhka/paint/PaintController.java create mode 100644 lab-03/by/lamposhka/paint/paint.fxml diff --git a/lab-03/by/lamposhka/paint/Paint.java b/lab-03/by/lamposhka/paint/Paint.java new file mode 100644 index 0000000..02dc6b3 --- /dev/null +++ b/lab-03/by/lamposhka/paint/Paint.java @@ -0,0 +1,22 @@ +package by.lamposhka.paint; + +import javafx.application.Application; +import javafx.fxml.FXMLLoader; +import javafx.scene.Scene; +import javafx.stage.Stage; + +import java.util.Objects; + +public class Paint extends Application { + @Override + public void start(Stage stage) throws Exception { + stage.setScene(new Scene(FXMLLoader.load(getClass().getResource("paint.fxml")))); + stage.setTitle("Lamposhka paint"); + stage.setResizable(false); + stage.show(); + } + + public static void main(String[] args) { + launch(args); + } +} \ No newline at end of file diff --git a/lab-03/by/lamposhka/paint/PaintController.java b/lab-03/by/lamposhka/paint/PaintController.java new file mode 100644 index 0000000..12cd30d --- /dev/null +++ b/lab-03/by/lamposhka/paint/PaintController.java @@ -0,0 +1,157 @@ +package by.lamposhka.paint; + +import com.sun.javafx.sg.prism.NGRectangle; +import javafx.application.Platform; +import javafx.collections.FXCollections; +import javafx.embed.swing.SwingFXUtils; +import javafx.event.ActionEvent; +import javafx.fxml.FXML; +import javafx.scene.SnapshotParameters; +import javafx.scene.canvas.Canvas; +import javafx.scene.canvas.GraphicsContext; +import javafx.scene.control.ColorPicker; +import javafx.scene.control.ComboBox; +import javafx.scene.control.TextField; +import javafx.scene.image.Image; +import javafx.scene.image.WritableImage; +import javafx.scene.input.MouseDragEvent; +import javafx.scene.input.MouseEvent; +import javafx.scene.paint.Color; +import javafx.scene.shape.StrokeLineCap; +import javafx.scene.shape.StrokeLineJoin; +import javafx.stage.FileChooser; +import javafx.stage.Stage; + +import javax.imageio.ImageIO; +import java.io.File; +import java.io.IOException; + +public class PaintController { + + private enum BrushMode { + PEN, CIRCLE, RECTANGLE, ERASER + } + + @FXML + private Canvas canvas; + + @FXML + private ColorPicker colorPicker; + + @FXML + private TextField brushSize; + + @FXML + private ComboBox brushChoiceBox; + private GraphicsContext graphicsContext; + private double prevX, prevY; + WritableImage snapshot; + + public void initialize() { + graphicsContext = canvas.getGraphicsContext2D(); + graphicsContext.setFill(Color.WHITE); + graphicsContext.fillRect(0, 0, canvas.getWidth(), canvas.getHeight()); + brushSize.setText("20"); + brushChoiceBox.setItems(FXCollections.observableArrayList(BrushMode.values())); + brushChoiceBox.setValue(BrushMode.PEN); + colorPicker.setValue(Color.BLACK); + prevX = 0; + prevY = 0; + SnapshotParameters parameters = new SnapshotParameters(); + parameters.setFill(Color.WHITE); + snapshot = canvas.snapshot(parameters, null); + } + + public void onOpen(ActionEvent actionEvent) { + FileChooser fileChooser = new FileChooser(); + fileChooser.getExtensionFilters().add( + new FileChooser.ExtensionFilter("Image Files", "*.png", "*.jpg", "*.jpeg", "*.gif") + ); + Stage stage = new Stage(); + File selectedFile = fileChooser.showOpenDialog(stage); + + if (selectedFile != null) { + // Load the selected image file + Image image = new Image(selectedFile.toURI().toString()); + + // Clear the canvas + canvas.getGraphicsContext2D().clearRect(0, 0, canvas.getWidth(), canvas.getHeight()); + + // Draw the image on the canvas + canvas.getGraphicsContext2D().drawImage(image, 0, 0, canvas.getWidth(), canvas.getHeight()); + } + } + + public void canvasMousePressed(MouseEvent e) { + prevX = e.getX(); + prevY = e.getY(); + graphicsContext.beginPath(); + SnapshotParameters parameters = new SnapshotParameters(); + parameters.setFill(Color.WHITE); + snapshot = canvas.snapshot(parameters, null); + } + + public void canvasMouseDragged(MouseEvent mouseEvent) { + double size = Double.parseDouble(brushSize.getText()); + double x = mouseEvent.getX(); + double y = mouseEvent.getY(); + + graphicsContext.setLineWidth(size); + graphicsContext.setLineCap(StrokeLineCap.ROUND); + graphicsContext.setLineJoin(StrokeLineJoin.ROUND); + + switch (brushChoiceBox.getValue()) { + case ERASER: + graphicsContext.setStroke(Color.WHITE); + graphicsContext.lineTo(mouseEvent.getX(), mouseEvent.getY()); + graphicsContext.stroke(); + break; + case PEN: + graphicsContext.setStroke(colorPicker.getValue()); + graphicsContext.lineTo(mouseEvent.getX(), mouseEvent.getY()); + graphicsContext.stroke(); + break; + case RECTANGLE: + graphicsContext.drawImage(snapshot, 0, 0, canvas.getHeight(), canvas.getWidth()); + graphicsContext.setStroke(colorPicker.getValue()); + graphicsContext.strokeRect(Math.min(prevX, x), Math.min(prevY, y), Math.abs(x - prevX), Math.abs(y - prevY)); + break; + case CIRCLE: + graphicsContext.drawImage(snapshot, 0, 0, canvas.getHeight(), canvas.getWidth()); + graphicsContext.setStroke(colorPicker.getValue()); + double radius = Math.sqrt((x - prevX) * (x - prevX) + (y - prevY) * (y - prevY)); + graphicsContext.strokeOval(prevX - radius, prevY - radius, 2*radius, 2*radius); + break; + } + + } + + public void canvasMouseReleased(MouseDragEvent mouseEvent) { + SnapshotParameters parameters = new SnapshotParameters(); + parameters.setFill(Color.WHITE); + snapshot = canvas.snapshot(parameters, null); + } + + public void onExit() { + Platform.exit(); + } + + public void onSave(ActionEvent actionEvent) { + SnapshotParameters parameters = new SnapshotParameters(); + parameters.setFill(Color.WHITE); + WritableImage writableImage = canvas.snapshot(parameters, null); + + FileChooser fileChooser = new FileChooser(); + fileChooser.setTitle("Save Canvas"); + fileChooser.getExtensionFilters().add(new FileChooser.ExtensionFilter("PNG Image", "*.png")); + File file = fileChooser.showSaveDialog(canvas.getScene().getWindow()); + + if (file != null) { + try { + ImageIO.write(SwingFXUtils.fromFXImage(writableImage, null), "png", file); + } catch (IOException e) { + e.printStackTrace(); + } + } + } +} diff --git a/lab-03/by/lamposhka/paint/paint.fxml b/lab-03/by/lamposhka/paint/paint.fxml new file mode 100644 index 0000000..7a3fffe --- /dev/null +++ b/lab-03/by/lamposhka/paint/paint.fxml @@ -0,0 +1,41 @@ + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + + +
+ +
+ + From 7573f69f5bddce745e9db2381e6ed0f728af7455 Mon Sep 17 00:00:00 2001 From: Lamposhka Date: Sun, 24 Dec 2023 19:16:43 +0300 Subject: [PATCH 2/2] quality change fixed(kinda) --- lab-03/by/lamposhka/paint/PaintController.java | 17 +++++++++++------ 1 file changed, 11 insertions(+), 6 deletions(-) diff --git a/lab-03/by/lamposhka/paint/PaintController.java b/lab-03/by/lamposhka/paint/PaintController.java index 12cd30d..2002b73 100644 --- a/lab-03/by/lamposhka/paint/PaintController.java +++ b/lab-03/by/lamposhka/paint/PaintController.java @@ -19,6 +19,7 @@ import javafx.scene.paint.Color; import javafx.scene.shape.StrokeLineCap; import javafx.scene.shape.StrokeLineJoin; +import javafx.scene.transform.Transform; import javafx.stage.FileChooser; import javafx.stage.Stage; @@ -47,6 +48,8 @@ private enum BrushMode { private double prevX, prevY; WritableImage snapshot; + private final int pixelScaleFactor = 2; + public void initialize() { graphicsContext = canvas.getGraphicsContext2D(); graphicsContext.setFill(Color.WHITE); @@ -64,9 +67,7 @@ public void initialize() { public void onOpen(ActionEvent actionEvent) { FileChooser fileChooser = new FileChooser(); - fileChooser.getExtensionFilters().add( - new FileChooser.ExtensionFilter("Image Files", "*.png", "*.jpg", "*.jpeg", "*.gif") - ); + fileChooser.getExtensionFilters().add(new FileChooser.ExtensionFilter("Image Files", "*.png", "*.jpg", "*.jpeg", "*.gif")); Stage stage = new Stage(); File selectedFile = fileChooser.showOpenDialog(stage); @@ -86,9 +87,11 @@ public void canvasMousePressed(MouseEvent e) { prevX = e.getX(); prevY = e.getY(); graphicsContext.beginPath(); + WritableImage writableImage = new WritableImage((int) Math.rint(pixelScaleFactor * canvas.getWidth()), (int) Math.rint(pixelScaleFactor * canvas.getHeight())); SnapshotParameters parameters = new SnapshotParameters(); + parameters.setTransform(Transform.scale(pixelScaleFactor, pixelScaleFactor)); parameters.setFill(Color.WHITE); - snapshot = canvas.snapshot(parameters, null); + snapshot = canvas.snapshot(parameters, writableImage); } public void canvasMouseDragged(MouseEvent mouseEvent) { @@ -120,16 +123,18 @@ public void canvasMouseDragged(MouseEvent mouseEvent) { graphicsContext.drawImage(snapshot, 0, 0, canvas.getHeight(), canvas.getWidth()); graphicsContext.setStroke(colorPicker.getValue()); double radius = Math.sqrt((x - prevX) * (x - prevX) + (y - prevY) * (y - prevY)); - graphicsContext.strokeOval(prevX - radius, prevY - radius, 2*radius, 2*radius); + graphicsContext.strokeOval(prevX - radius, prevY - radius, 2 * radius, 2 * radius); break; } } public void canvasMouseReleased(MouseDragEvent mouseEvent) { + WritableImage writableImage = new WritableImage((int) Math.rint(pixelScaleFactor * canvas.getWidth()), (int) Math.rint(pixelScaleFactor * canvas.getHeight())); SnapshotParameters parameters = new SnapshotParameters(); + parameters.setTransform(Transform.scale(pixelScaleFactor, pixelScaleFactor)); parameters.setFill(Color.WHITE); - snapshot = canvas.snapshot(parameters, null); + snapshot = canvas.snapshot(parameters, writableImage); } public void onExit() {