forked from External/mage
[refactoring][minor] Replaced all tabs with four spaces.
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North
parent
e646e4768d
commit
239a4fb100
2891 changed files with 79411 additions and 79411 deletions
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@ -16,126 +16,126 @@ import javax.swing.JFrame;
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import javax.swing.JPanel;
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public class Arrow extends JPanel {
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private static final long serialVersionUID = -4631054277822828303L;
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private int startX;
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private int startY;
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private int endX;
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private int endY;
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private int bodyWidth = 10;
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private float headSize = 17;
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private Composite composite;
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private Color color = Color.red;
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private static final long serialVersionUID = -4631054277822828303L;
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public Arrow () {
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setOpaque(false);
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setOpacity(0.6f);
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}
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private int startX;
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private int startY;
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private int endX;
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private int endY;
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private int bodyWidth = 10;
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private float headSize = 17;
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private Composite composite;
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private Color color = Color.red;
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protected void paintComponent (Graphics g) {
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super.paintComponent(g);
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float ex = endX - startX;
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float ey = endY - startY;
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if (ex == 0 && ey == 0) return;
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float length = (float)Math.sqrt(ex * ex + ey * ey);
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float bendPercent = (float)Math.asin(ey / length);
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if (endX > startX) bendPercent = -bendPercent;
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Area arrow = getArrow(length, bendPercent);
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Graphics2D g2d = (Graphics2D)g;
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g2d.translate(startX, startY);
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g2d.rotate(Math.atan2(ey, ex));
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g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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g2d.setComposite(composite);
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g2d.setColor(this.color);
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g2d.fill(arrow);
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g2d.setColor(Color.BLACK);
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g2d.draw(arrow);
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}
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public Arrow () {
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setOpaque(false);
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setOpacity(0.6f);
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}
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private Area getArrow (float length, float bendPercent) {
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float p1x = 0, p1y = 0;
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float p2x = length, p2y = 0;
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float cx = length / 2, cy = length / 8f * bendPercent;
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protected void paintComponent (Graphics g) {
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super.paintComponent(g);
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float ex = endX - startX;
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float ey = endY - startY;
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if (ex == 0 && ey == 0) return;
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float length = (float)Math.sqrt(ex * ex + ey * ey);
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float bendPercent = (float)Math.asin(ey / length);
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if (endX > startX) bendPercent = -bendPercent;
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Area arrow = getArrow(length, bendPercent);
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Graphics2D g2d = (Graphics2D)g;
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g2d.translate(startX, startY);
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g2d.rotate(Math.atan2(ey, ex));
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g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
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g2d.setComposite(composite);
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g2d.setColor(this.color);
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g2d.fill(arrow);
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g2d.setColor(Color.BLACK);
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g2d.draw(arrow);
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}
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float adjSize, ex, ey, abs_e;
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adjSize = (float)(bodyWidth / 2 / Math.sqrt(2));
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ex = p2x - cx;
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ey = p2y - cy;
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abs_e = (float)Math.sqrt(ex * ex + ey * ey);
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ex /= abs_e;
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ey /= abs_e;
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GeneralPath bodyPath = new GeneralPath();
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bodyPath.moveTo(p2x + (ey - ex) * adjSize, p2y - (ex + ey) * adjSize);
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bodyPath.quadTo(cx, cy, p1x, p1y - bodyWidth / 2);
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bodyPath.lineTo(p1x, p1y + bodyWidth / 2);
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bodyPath.quadTo(cx, cy, p2x - (ey + ex) * adjSize, p2y + (ex - ey) * adjSize);
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bodyPath.closePath();
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private Area getArrow (float length, float bendPercent) {
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float p1x = 0, p1y = 0;
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float p2x = length, p2y = 0;
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float cx = length / 2, cy = length / 8f * bendPercent;
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adjSize = (float)(headSize / Math.sqrt(2));
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ex = p2x - cx;
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ey = p2y - cy;
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abs_e = (float)Math.sqrt(ex * ex + ey * ey);
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ex /= abs_e;
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ey /= abs_e;
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GeneralPath headPath = new GeneralPath();
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headPath.moveTo(p2x - (ey + ex) * adjSize, p2y + (ex - ey) * adjSize);
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headPath.lineTo(p2x, p2y);
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headPath.lineTo(p2x + (ey - ex) * adjSize, p2y - (ex + ey) * adjSize);
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headPath.closePath();
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float adjSize, ex, ey, abs_e;
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adjSize = (float)(bodyWidth / 2 / Math.sqrt(2));
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ex = p2x - cx;
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ey = p2y - cy;
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abs_e = (float)Math.sqrt(ex * ex + ey * ey);
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ex /= abs_e;
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ey /= abs_e;
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GeneralPath bodyPath = new GeneralPath();
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bodyPath.moveTo(p2x + (ey - ex) * adjSize, p2y - (ex + ey) * adjSize);
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bodyPath.quadTo(cx, cy, p1x, p1y - bodyWidth / 2);
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bodyPath.lineTo(p1x, p1y + bodyWidth / 2);
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bodyPath.quadTo(cx, cy, p2x - (ey + ex) * adjSize, p2y + (ex - ey) * adjSize);
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bodyPath.closePath();
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Area area = new Area(headPath);
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area.add(new Area(bodyPath));
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return area;
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}
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adjSize = (float)(headSize / Math.sqrt(2));
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ex = p2x - cx;
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ey = p2y - cy;
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abs_e = (float)Math.sqrt(ex * ex + ey * ey);
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ex /= abs_e;
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ey /= abs_e;
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GeneralPath headPath = new GeneralPath();
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headPath.moveTo(p2x - (ey + ex) * adjSize, p2y + (ex - ey) * adjSize);
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headPath.lineTo(p2x, p2y);
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headPath.lineTo(p2x + (ey - ex) * adjSize, p2y - (ex + ey) * adjSize);
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headPath.closePath();
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public int getBodyWidth () {
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return bodyWidth;
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}
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Area area = new Area(headPath);
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area.add(new Area(bodyPath));
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return area;
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}
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public void setBodyWidth (int bodyWidth) {
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this.bodyWidth = bodyWidth;
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}
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public int getBodyWidth () {
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return bodyWidth;
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}
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public float getHeadSize () {
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return headSize;
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}
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public void setBodyWidth (int bodyWidth) {
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this.bodyWidth = bodyWidth;
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}
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public void setHeadSize (float headSize) {
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this.headSize = headSize;
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}
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public float getHeadSize () {
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return headSize;
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}
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public void setArrowLocation (int startX, int startY, int endX, int endY) {
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this.startX = startX;
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this.startY = startY;
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this.endX = endX;
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this.endY = endY;
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repaint();
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}
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public void setHeadSize (float headSize) {
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this.headSize = headSize;
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}
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public void setOpacity (float opacity) {
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composite = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, opacity);
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}
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public void setColor(Color color) {
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this.color = color;
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}
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public void setArrowLocation (int startX, int startY, int endX, int endY) {
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this.startX = startX;
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this.startY = startY;
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this.endX = endX;
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this.endY = endY;
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repaint();
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}
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public static void main (String[] args) {
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final JFrame frame = new JFrame();
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frame.setLayout(new BorderLayout());
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frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
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final Arrow arrow = new Arrow();
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frame.add(arrow, BorderLayout.CENTER);
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frame.setSize(640, 480);
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frame.setResizable(false);
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frame.setVisible(true);
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frame.getContentPane().addMouseMotionListener(new MouseMotionListener() {
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public void mouseMoved (MouseEvent e) {
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arrow.setArrowLocation(320, 240, e.getX(), e.getY());
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}
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public void setOpacity (float opacity) {
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composite = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, opacity);
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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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public void setColor(Color color) {
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this.color = color;
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}
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public static void main (String[] args) {
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final JFrame frame = new JFrame();
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frame.setLayout(new BorderLayout());
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frame.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
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final Arrow arrow = new Arrow();
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frame.add(arrow, BorderLayout.CENTER);
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frame.setSize(640, 480);
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frame.setResizable(false);
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frame.setVisible(true);
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frame.getContentPane().addMouseMotionListener(new MouseMotionListener() {
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public void mouseMoved (MouseEvent e) {
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arrow.setArrowLocation(320, 240, e.getX(), e.getY());
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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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}
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