Список объектов заменён на синхронизируемый. Исправлено обновление экрана.
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c30e0a3512
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@ -4,8 +4,10 @@ import java.awt.Color;
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import java.awt.Dimension;
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import java.awt.Graphics;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.List;
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import javax.swing.JPanel;
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import javax.swing.SwingUtilities;
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/**
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* Панель рисования.
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@ -16,7 +18,7 @@ public class PaintPanel extends JPanel {
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private final List<PaintableObject> paintables;
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public PaintPanel(int width, int height) {
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paintables = new ArrayList<>();
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paintables = Collections.synchronizedList(new ArrayList<PaintableObject>());
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setBackground(Color.WHITE);
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setPreferredSize(new Dimension(width, height));
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@ -24,7 +26,13 @@ public class PaintPanel extends JPanel {
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public synchronized void addPaintable(PaintableObject obj) {
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paintables.add(obj);
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invalidate();
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SwingUtilities.invokeLater(new Runnable() {
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@Override
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public void run() {
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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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