質問編集履歴
2
削除された内容の復元を行いました
test
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1つのHBoxを左上に、もう一方を右上に設置したい
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test
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### 前提・実現したいこと
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javafxにてCanvasを使った絵を書くプログラムを作っています。
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位置の指定はしているのですが、指定なりなんなりしても重なってしまいます。
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2つの中身の要素をまとめて１つのHBoxに入れたりもしたのですが改善しませんでした。
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載せているプログラムは上記の操作をする前のものです。
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色を変えるボタンのHBoxをCanvasの左上に、線の太さを変えるHBoxをCanvasの右上に配置したいです。
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■■な機能を実装中に以下のエラーメッセージが発生しました。
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### 発生している問題・エラーメッセージ
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```
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2つのHBoxが重なってしまう
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```
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### 該当のソースコード
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```javafx
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import javafx.application.Application;
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import javafx.event.ActionEvent;
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import javafx.event.EventHandler;
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import javafx.geometry.Pos;
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import javafx.scene.Group;
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import javafx.scene.Scene;
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import javafx.scene.canvas.Canvas;
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import javafx.scene.canvas.GraphicsContext;
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import javafx.scene.control.Button;
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import javafx.scene.control.TextField;
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import javafx.scene.input.MouseEvent;
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import javafx.scene.layout.FlowPane;
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import javafx.scene.layout.HBox;
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import javafx.scene.paint.Color;
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import javafx.stage.Stage;
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public class Draw extends Application {
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public static void main(String[] args) {
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launch();
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}
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GraphicsContext Graphic;
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public void start(Stage myStage) {
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myStage.setTitle("お絵かきアプリ");
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myStage.setWidth(500);
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myStage.setHeight(500);
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Canvas cn = new Canvas(1500, 1200);
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cn.setOnMousePressed(event -> mousePressed(event));
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cn.setOnMouseDragged(event -> mouseDragged(event));
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Graphic = cn.getGraphicsContext2D();
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Button Black = new Button("黒"); //色を変えるボタンを設置
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Button Brown = new Button("茶");
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Button Red = new Button("赤");
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Button Blue = new Button("青");
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Button Sky = new Button("水色");
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Button Yellow = new Button("黄");
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Button Green = new Button("緑");
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Button Pink = new Button("ピンク");
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Button Orange = new Button("オレンジ");
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Button clear = new Button("キャンバスをリセット");
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//線の太さを変えるテキストフィールドとボタン
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TextField num = new TextField();
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num.setPrefWidth(100);
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num.setText("変更したい太さ");
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Button cha = new Button("変更");
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cha.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event) {
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if(num != null) {
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int n = Integer.parseInt(num.getText());
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Graphic.setLineWidth(n);
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Graphic.beginPath();
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}
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}
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});
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Black.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event) {
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Graphic.setStroke(Color . BLACK );
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Graphic.beginPath();
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}
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});
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Brown.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event) {
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Graphic.setStroke(Color . BROWN );
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Graphic.beginPath();
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}
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});
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Red.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event1) {
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Graphic.setStroke(Color . RED );
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Graphic.beginPath();
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}
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});
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Blue.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event2) {
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Graphic.setStroke(Color . BLUE );
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Graphic.beginPath();
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}
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});
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Sky.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event2) {
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Graphic.setStroke(Color . SKYBLUE );
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Graphic.beginPath();
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}
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});
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Yellow.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event3) {
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Graphic.setStroke(Color . YELLOW );
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Graphic.beginPath();
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}
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});
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Green.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event4) {
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Graphic.setStroke(Color . GREEN );
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Graphic.beginPath();
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}
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});
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Pink.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event5) {
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Graphic.setStroke(Color . PINK );
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Graphic.beginPath();
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}
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});
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Orange.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event6) {
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Graphic.setStroke(Color . ORANGE );
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Graphic.beginPath();
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}
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});
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clear.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event7) {
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Graphic.clearRect(0 , 0 , cn.getWidth(), cn.getHeight());
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Graphic.beginPath();
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}
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});
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HBox hb = new HBox(cn , Black , Brown ,Red , Blue , Sky , Yellow , Green , Pink , Orange , clear );
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HBox hb2 = new HBox(num , cha);
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hb.setAlignment(Pos.TOP_LEFT);
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hb2.setAlignment(Pos.TOP_RIGHT);
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myStage.setScene(new Scene(new Group(cn , hb , hb2)));
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myStage.show();
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}
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void mousePressed(MouseEvent Event2) {
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Graphic.moveTo(Event2.getX(), Event2.getY());
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}
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void mouseDragged(MouseEvent Event3) {
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Graphic.lineTo(Event3.getX(), Event3.getY());
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Graphic.stroke();
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}
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}
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282
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```
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284
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285
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### 試したこと
|
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286
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+
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|
287
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+
2つのHBoxの中身を1つのHBoxにまとめた
|
|
288
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+
|
|
289
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+
### 補足情報（FW/ツールのバージョンなど）
|
|
290
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+
|
|
291
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+
実行環境はjava8です
|
1
test
CHANGED
|
@@ -1 +1 @@
|
|
|
1
|
-
|
|
1
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+
カラーを設置したいです
|
test
CHANGED
|
@@ -1,561 +1,3 @@
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1
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-
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1
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+
****```
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2
2
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|
3
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-
|
|
4
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-
|
|
5
|
-
|
|
6
|
-
|
|
7
|
-
javafxにてCanvasを使った絵を書くプログラムを作っています。
|
|
8
|
-
|
|
9
|
-
位置の指定はしているのですが、指定なりなんなりしても重なってしまいます。
|
|
10
|
-
|
|
11
|
-
2つの中身の要素をまとめて１つのHBoxに入れたりもしたのですが改善しませんでした。
|
|
12
|
-
|
|
13
|
-
載せているプログラムは上記の操作をする前のものです。
|
|
14
|
-
|
|
15
|
-
|
|
16
|
-
|
|
17
|
-
色を変えるボタンのHBoxをCanvasの左上に、線の太さを変えるHBoxをCanvasの右上に配置したいです。
|
|
18
|
-
|
|
19
|
-
■■な機能を実装中に以下のエラーメッセージが発生しました。
|
|
20
|
-
|
|
21
|
-
|
|
22
|
-
|
|
23
|
-
### 発生している問題・エラーメッセージ
|
|
24
|
-
|
|
25
|
-
|
|
26
|
-
|
|
27
|
-
```
|
|
28
|
-
|
|
29
|
-
2つのHBoxが重なってしまう
|
|
30
|
-
|
|
31
|
-
```
|
|
32
|
-
|
|
33
|
-
|
|
34
|
-
|
|
35
|
-
### 該当のソースコード
|
|
36
|
-
|
|
37
|
-
|
|
38
|
-
|
|
39
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-
```javafx
|
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40
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-
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41
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import javafx.application.Application;
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|
42
|
-
|
|
43
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-
import javafx.event.ActionEvent;
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|
44
|
-
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|
45
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-
import javafx.event.EventHandler;
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|
46
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-
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47
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-
import javafx.geometry.Pos;
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|
48
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-
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49
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import javafx.scene.Group;
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50
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-
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51
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import javafx.scene.Scene;
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52
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-
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53
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import javafx.scene.canvas.Canvas;
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54
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-
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55
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import javafx.scene.canvas.GraphicsContext;
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56
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-
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57
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import javafx.scene.control.Button;
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58
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-
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59
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import javafx.scene.control.TextField;
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60
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-
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61
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import javafx.scene.input.MouseEvent;
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62
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-
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63
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import javafx.scene.layout.FlowPane;
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64
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-
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65
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import javafx.scene.layout.HBox;
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66
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-
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67
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import javafx.scene.paint.Color;
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68
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-
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69
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import javafx.stage.Stage;
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70
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-
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71
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-
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72
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-
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|
73
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-
|
|
74
|
-
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|
75
|
-
public class Draw extends Application {
|
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76
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-
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77
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-
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78
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-
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79
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-
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80
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81
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public static void main(String[] args) {
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82
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-
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83
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-
|
|
84
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-
|
|
85
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-
launch();
|
|
86
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-
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|
87
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-
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88
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-
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89
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-
}
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90
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91
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GraphicsContext Graphic;
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public void start(Stage myStage) {
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myStage.setTitle("お絵かきアプリ");
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myStage.setWidth(500);
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Canvas cn = new Canvas(1500, 1200);
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cn.setOnMousePressed(event -> mousePressed(event));
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cn.setOnMouseDragged(event -> mouseDragged(event));
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Button Black = new Button("黒"); //色を変えるボタンを設置
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Button Sky = new Button("水色");
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Button Yellow = new Button("黄");
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Button Green = new Button("緑");
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Button Pink = new Button("ピンク");
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Button Orange = new Button("オレンジ");
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コ### ~~__**__~~__~~__~~ヘディングのテキスト~~__~~__~~__**__~~
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//線の太さを変えるテキストフィールドとボタン
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TextField num = new TextField();
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Button cha = new Button("変更");
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cha.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event) {
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if(num != null) {
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int n = Integer.parseInt(num.getText());
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Graphic.setLineWidth(n);
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Graphic.beginPath();
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Black.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event) {
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Graphic.setStroke(Color . BLACK );
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Graphic.beginPath();
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}
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});
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Brown.setOnAction(new EventHandler<ActionEvent>() {
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public void handle(ActionEvent Event) {
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249
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Graphic.setStroke(Color . BROWN );
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Graphic.beginPath();
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}
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});
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Red.setOnAction(new EventHandler<ActionEvent>() {
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|
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public void handle(ActionEvent Event1) {
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|
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279
|
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Graphic.setStroke(Color . RED );
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280
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281
|
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Graphic.beginPath();
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282
|
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285
|
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}
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|
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});
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295
|
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Blue.setOnAction(new EventHandler<ActionEvent>() {
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297
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298
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299
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300
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301
|
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public void handle(ActionEvent Event2) {
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302
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303
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304
|
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|
305
|
-
Graphic.setStroke(Color . BLUE );
|
|
306
|
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|
307
|
-
Graphic.beginPath();
|
|
308
|
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309
|
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310
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311
|
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}
|
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312
|
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313
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314
|
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315
|
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});
|
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316
|
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317
|
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318
|
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|
319
|
-
Sky.setOnAction(new EventHandler<ActionEvent>() {
|
|
320
|
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321
|
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322
|
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323
|
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324
|
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|
|
325
|
-
public void handle(ActionEvent Event2) {
|
|
326
|
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|
327
|
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|
|
328
|
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|
|
329
|
-
Graphic.setStroke(Color . SKYBLUE );
|
|
330
|
-
|
|
331
|
-
Graphic.beginPath();
|
|
332
|
-
|
|
333
|
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|
|
334
|
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|
|
335
|
-
}
|
|
336
|
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|
337
|
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|
338
|
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|
|
339
|
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});
|
|
340
|
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|
341
|
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|
342
|
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|
343
|
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|
|
344
|
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|
|
345
|
-
Yellow.setOnAction(new EventHandler<ActionEvent>() {
|
|
346
|
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|
|
347
|
-
|
|
348
|
-
|
|
349
|
-
|
|
350
|
-
|
|
351
|
-
public void handle(ActionEvent Event3) {
|
|
352
|
-
|
|
353
|
-
|
|
354
|
-
|
|
355
|
-
Graphic.setStroke(Color . YELLOW );
|
|
356
|
-
|
|
357
|
-
Graphic.beginPath();
|
|
358
|
-
|
|
359
|
-
|
|
360
|
-
|
|
361
|
-
}
|
|
362
|
-
|
|
363
|
-
|
|
364
|
-
|
|
365
|
-
});
|
|
366
|
-
|
|
367
|
-
|
|
368
|
-
|
|
369
|
-
|
|
370
|
-
|
|
371
|
-
|
|
372
|
-
|
|
373
|
-
Green.setOnAction(new EventHandler<ActionEvent>() {
|
|
374
|
-
|
|
375
|
-
|
|
376
|
-
|
|
377
|
-
|
|
378
|
-
|
|
379
|
-
public void handle(ActionEvent Event4) {
|
|
380
|
-
|
|
381
|
-
|
|
382
|
-
|
|
383
|
-
Graphic.setStroke(Color . GREEN );
|
|
384
|
-
|
|
385
|
-
Graphic.beginPath();
|
|
386
|
-
|
|
387
|
-
|
|
388
|
-
|
|
389
|
-
}
|
|
390
|
-
|
|
391
|
-
|
|
392
|
-
|
|
393
|
-
});
|
|
394
|
-
|
|
395
|
-
|
|
396
|
-
|
|
397
|
-
|
|
398
|
-
|
|
399
|
-
|
|
400
|
-
|
|
401
|
-
|
|
402
|
-
|
|
403
|
-
Pink.setOnAction(new EventHandler<ActionEvent>() {
|
|
404
|
-
|
|
405
|
-
|
|
406
|
-
|
|
407
|
-
|
|
408
|
-
|
|
409
|
-
public void handle(ActionEvent Event5) {
|
|
410
|
-
|
|
411
|
-
|
|
412
|
-
|
|
413
|
-
Graphic.setStroke(Color . PINK );
|
|
414
|
-
|
|
415
|
-
Graphic.beginPath();
|
|
416
|
-
|
|
417
|
-
|
|
418
|
-
|
|
419
|
-
}
|
|
420
|
-
|
|
421
|
-
|
|
422
|
-
|
|
423
|
-
});
|
|
424
|
-
|
|
425
|
-
|
|
426
|
-
|
|
427
|
-
|
|
428
|
-
|
|
429
|
-
|
|
430
|
-
|
|
431
|
-
Orange.setOnAction(new EventHandler<ActionEvent>() {
|
|
432
|
-
|
|
433
|
-
|
|
434
|
-
|
|
435
|
-
|
|
436
|
-
|
|
437
|
-
public void handle(ActionEvent Event6) {
|
|
438
|
-
|
|
439
|
-
|
|
440
|
-
|
|
441
|
-
Graphic.setStroke(Color . ORANGE );
|
|
442
|
-
|
|
443
|
-
Graphic.beginPath();
|
|
444
|
-
|
|
445
|
-
|
|
446
|
-
|
|
447
|
-
}
|
|
448
|
-
|
|
449
|
-
|
|
450
|
-
|
|
451
|
-
});
|
|
452
|
-
|
|
453
|
-
|
|
454
|
-
|
|
455
|
-
|
|
456
|
-
|
|
457
|
-
|
|
458
|
-
|
|
459
|
-
|
|
460
|
-
|
|
461
|
-
clear.setOnAction(new EventHandler<ActionEvent>() {
|
|
462
|
-
|
|
463
|
-
|
|
464
|
-
|
|
465
|
-
|
|
466
|
-
|
|
467
|
-
public void handle(ActionEvent Event7) {
|
|
468
|
-
|
|
469
|
-
|
|
470
|
-
|
|
471
|
-
|
|
472
|
-
|
|
473
|
-
Graphic.clearRect(0 , 0 , cn.getWidth(), cn.getHeight());
|
|
474
|
-
|
|
475
|
-
Graphic.beginPath();
|
|
476
|
-
|
|
477
|
-
|
|
478
|
-
|
|
479
|
-
|
|
480
|
-
|
|
481
|
-
|
|
482
|
-
|
|
483
|
-
}
|
|
484
|
-
|
|
485
|
-
|
|
486
|
-
|
|
487
|
-
});
|
|
488
|
-
|
|
489
|
-
|
|
490
|
-
|
|
491
|
-
|
|
492
|
-
|
|
493
|
-
|
|
494
|
-
|
|
495
|
-
|
|
496
|
-
|
|
497
|
-
HBox hb = new HBox(cn , Black , Brown ,Red , Blue , Sky , Yellow , Green , Pink , Orange , clear );
|
|
498
|
-
|
|
499
|
-
HBox hb2 = new HBox(num , cha);
|
|
500
|
-
|
|
501
|
-
hb.setAlignment(Pos.TOP_LEFT);
|
|
502
|
-
|
|
503
|
-
hb2.setAlignment(Pos.TOP_RIGHT);
|
|
504
|
-
|
|
505
|
-
myStage.setScene(new Scene(new Group(cn , hb , hb2)));
|
|
506
|
-
|
|
507
|
-
|
|
508
|
-
|
|
509
|
-
|
|
510
|
-
|
|
511
|
-
myStage.show();
|
|
512
|
-
|
|
513
|
-
|
|
514
|
-
|
|
515
|
-
}
|
|
516
|
-
|
|
517
|
-
|
|
518
|
-
|
|
519
|
-
void mousePressed(MouseEvent Event2) {
|
|
520
|
-
|
|
521
|
-
Graphic.moveTo(Event2.getX(), Event2.getY());
|
|
522
|
-
|
|
523
|
-
|
|
524
|
-
|
|
525
|
-
}
|
|
526
|
-
|
|
527
|
-
|
|
528
|
-
|
|
529
|
-
void mouseDragged(MouseEvent Event3) {
|
|
530
|
-
|
|
531
|
-
Graphic.lineTo(Event3.getX(), Event3.getY());
|
|
532
|
-
|
|
533
|
-
Graphic.stroke();
|
|
534
|
-
|
|
535
|
-
|
|
536
|
-
|
|
537
|
-
}
|
|
538
|
-
|
|
539
|
-
|
|
540
|
-
|
|
541
|
-
|
|
542
|
-
|
|
543
|
-
}
|
|
544
|
-
|
|
545
|
-
|
|
546
|
-
|
|
547
|
-
```
|
|
548
|
-
|
|
549
|
-
|
|
550
|
-
|
|
551
|
-
### 試したこと
|
|
552
|
-
|
|
553
|
-
|
|
554
|
-
|
|
555
|
-
2つのHBoxの中身を1つのHBoxにまとめた
|
|
556
|
-
|
|
557
|
-
|
|
558
|
-
|
|
559
|
-
### 補足情報（FW/ツールのバージョンなど）
|
|
560
|
-
|
|
561
|
-
実行環境はjava8です
|