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トップに関する質問連続描写の方法

編集履歴

質問編集履歴

3

追加

2017/05/09 00:44

投稿

toutou
toutou

スコア2050

test CHANGED
File without changes
test CHANGED
@@ -399,3 +399,155 @@
399
399
  }
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400
 
401
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  ```
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+
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+
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+
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+ さらに追記
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+
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+
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+
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+ ```ここに言語を入力
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+
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+ class GPanel extends JPanel implements MouseListener, MouseMotionListener{
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+
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+ private int move_x = -100;
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+
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+ private int move_y = -100;
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+
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+ private int start_x = -100;
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+
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+ private int start_y = -100;
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+
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+ private boolean flag = false;
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+
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+
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+
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+ BufferedImage seve_field = new BufferedImage(600,600, BufferedImage.TYPE_4BYTE_ABGR);
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+
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+ public GPanel()
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+
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+ {
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+
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+ addMouseListener(this);
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+
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+ addMouseMotionListener(this);
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+
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+ }
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+
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+ @Override
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+
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+ public void paintComponent(Graphics g)
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+
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+ {
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+
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+ Graphics2D g2= (Graphics2D)g;
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+
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+ BasicStroke BStroke = new BasicStroke(5.0f);
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+
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+ g2.setStroke(BStroke);
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+
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+ g2.setColor(Color.RED);
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+
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+ Graphics seve = seve_field.createGraphics();
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+
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+ Graphics2D seve2= (Graphics2D)seve;
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+
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+ seve2.setStroke(BStroke);
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+
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+ seve2.setColor(Color.RED);
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+
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+
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+
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+ if(start_x==-100||start_y== -100||move_x==-100||move_y==-100)
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+
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+ {
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+
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+ move_x = move_y = start_x = start_y = -100;
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+
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+ }
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+
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+ g2.drawImage(seve_field,0,0,this);
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+
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+ seve2.drawLine(start_x, start_y, move_x, move_y);
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+
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+ g2.drawLine(start_x, start_y, move_x, move_y);
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+
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+ start_x = move_x;
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+
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+ start_y = move_y;
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+
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+ }
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+
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+ @Override
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+
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+ public void mousePressed(MouseEvent e)
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+
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+ {
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+
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+ flag =false;
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+
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+ start_x = move_x = e.getX();
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+
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+ start_y = move_y = e.getY();
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+
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+ }
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+
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+ @Override
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+
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+ public void mouseReleased(MouseEvent e)
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+
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+ {
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+
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+ flag = true;
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+
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+ move_x = move_y = start_x = start_y = -100;
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+
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+ }
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+
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+ @Override
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+
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+ public void mouseDragged(MouseEvent e)
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+
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+ {
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+
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+ move_x = e.getX();
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+
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+ move_y = e.getY();
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+
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+ repaint();
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+
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+ }
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+
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+ @Override
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+
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+ public void mouseClicked(MouseEvent e)
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+
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+ {
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+
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+ }
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+
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+ @Override
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+
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+ public void mouseEntered(MouseEvent e)
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+
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+ {
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+
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+ }
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+
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+ @Override
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+
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+ public void mouseExited(MouseEvent e)
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+
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+ {
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+
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+ }
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+
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+ @Override
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+
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+ public void mouseMoved(MouseEvent e)
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+
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+ {
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+
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+ }
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+
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+ ```

2

修正

2017/05/09 00:44

投稿

toutou
toutou

スコア2050

test CHANGED
File without changes
test CHANGED
@@ -322,19 +322,17 @@
322
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  start_y = move_y = e.getY();
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- System.out.println(e.getY());
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-
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  }
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  @Override
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328
 
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  public void mouseReleased(MouseEvent e)
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330
 
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- { move_x = -100;//初期位置初期化
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+ { move_x = -100;
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  move_y = -100;
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- start_x= -100;//初期位置初期化
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+ start_x= -100;
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  start_y = -100;
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338
 

1

追記

2017/05/08 00:07

投稿

toutou
toutou

スコア2050

test CHANGED
File without changes
test CHANGED
@@ -2,7 +2,7 @@
2
2
 
3
3
 
4
4
 
5
- ```ここに言語を入力
5
+ ```java
6
6
 
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7
  import java.awt.BorderLayout;
8
8
 
@@ -267,3 +267,137 @@
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  }
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269
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  ```
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+
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+
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+
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+ 修正部分
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+
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+ 以下の通りに直しました。
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+
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+ ```java
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+
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+ @Override
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+
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+ public void paintComponent(Graphics g)
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+
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+ {
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+
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+ Graphics2D g2 = (Graphics2D)g;
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+
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+ BasicStroke BStroke = new BasicStroke(5.0f);
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+
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+ g2.setStroke(BStroke);
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+
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+ g.setColor(Color.RED);
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+
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+ if(start_x==-100||start_y== -10||move_x==-100||move_y==-100)
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+
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+ {
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+
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+ move_x = -100;
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+
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+ move_y = -100;
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+
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+ start_x= -100;
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+
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+ start_y = -100;
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+
305
+ }
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+
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+ g.drawLine(start_x, start_y, move_x, move_y);
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+
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+ start_x = move_x;
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+
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+ start_y=move_y;
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+
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+ }
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+
315
+ @Override
316
+
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+ public void mousePressed(MouseEvent e)
318
+
319
+ {
320
+
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+ start_x = move_x = e.getX();
322
+
323
+ start_y = move_y = e.getY();
324
+
325
+ System.out.println(e.getY());
326
+
327
+ }
328
+
329
+ @Override
330
+
331
+ public void mouseReleased(MouseEvent e)
332
+
333
+ { move_x = -100;//初期位置初期化
334
+
335
+ move_y = -100;
336
+
337
+ start_x= -100;//初期位置初期化
338
+
339
+ start_y = -100;
340
+
341
+ }
342
+
343
+ @Override
344
+
345
+ public void mouseDragged(MouseEvent e)
346
+
347
+ {
348
+
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+ move_x = e.getX();
350
+
351
+ move_y = e.getY();
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+
353
+ repaint();
354
+
355
+ }
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+
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+ @Override
358
+
359
+ public void mouseClicked(MouseEvent e)
360
+
361
+ {
362
+
363
+ }
364
+
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+ @Override
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+
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+ public void mouseEntered(MouseEvent e)
368
+
369
+ {
370
+
371
+ start_x = move_x = e.getX();
372
+
373
+ start_y = move_y = e.getY();
374
+
375
+ }
376
+
377
+ @Override
378
+
379
+ public void mouseExited(MouseEvent e)
380
+
381
+ {
382
+
383
+ move_x = -100;
384
+
385
+ move_y = -100;
386
+
387
+ start_x= -100;
388
+
389
+ start_y = -100;
390
+
391
+ }
392
+
393
+ @Override
394
+
395
+ public void mouseMoved(MouseEvent e)
396
+
397
+ {
398
+
399
+ }
400
+
401
+ }
402
+
403
+ ```