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public class GraphView extends JPanel implements MouseListener, MouseMotionListener, MouseWheelListener, KeyListener, GraphModelListener
{
private static final long serialVersionUID = 1L;
final static float dash[] = { 5.0f };
final static BasicStroke dashed = new BasicStroke(1.0f, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL, 10.0f, dash, 0.0f);
public final int PANEL_WIDTH = 3960;
public final int PANEL_HEIGHT = 2048;
public int scaledPanelWidth = 3960;
public int scaledPanelHeight = 2048;
private final GraphModel graphModel;
private final GraphPanel parent;
private final Rectangle mouseRect;
private final Point correctedMousePt;
private final Point mousePt;
private int zoomCenterX;
private int zoomCenterY;
private TexturePaint texture;
private final int gap = 5;
private double zoom = 1.0d;
private final double minScale = 0.3;
private final double maxScale = 5.0;
private boolean debug = false;
private boolean waitingNewComponentPosition;
private boolean selecting;
public GraphView(final GraphPanel _parent, final GraphModel _graphModel)
{
super();
parent = _parent;
graphModel = _graphModel;
mouseRect = new Rectangle();
mousePt = new Point();
correctedMousePt = new Point();
selecting = false;
waitingNewComponentPosition = false;
graphModel.addGraphModelListener(this);
initGUI();
requestFocusInWindow();
requestFocus();
}
private void initGUI()
{
setFocusable(true);
setFocusCycleRoot(true);
setBackgroundTexture();
setOpaque(true);
addMouseListener(this);
addMouseMotionListener(this);
addMouseWheelListener(this);
addKeyListener(this);
}
@Override
public Dimension getPreferredSize()
{
return new Dimension(scaledPanelWidth, scaledPanelHeight);
}
@Override
public void paintComponent(final Graphics g)
{
final Graphics2D gDebug = (Graphics2D)g.create();
final Graphics2D g2 = (Graphics2D)g;
// On efface le contenu
// g2.clearRect(0, 0, getWidth(), getHeight());
g2.clearRect(0, 0, scaledPanelWidth, scaledPanelHeight);
final AffineTransform initialTransform = g2.getTransform();
final AffineTransform tx = getCurrentTransform();
tx.concatenate(g2.getTransform());
g2.setTransform(tx);
// Dessin de la grille (après transformation affine pour qu'elle soit à l'échelle)
g2.setPaint(texture);
g2.fillRect(0, 0, scaledPanelWidth, scaledPanelHeight);
g2.setPaint(null);
// Si j'applique la transformée après avoir dessiné la grille celle ci ne se redimensionne pas
// final AffineTransform tx = getCurrentTransform();
// tx.concatenate(g2.getTransform());
// g2.setTransform(tx);
// Dessin des liens
for (final Link link : graphModel.getLinkSet().getLinks())
{
link.draw(g2);
}
// Dessin des formes
for (final GraphicElement shape : graphModel.getNodeSet().getNodes())
{
shape.draw(g2);
}
if (selecting)
{
g2.setColor(Color.DARK_GRAY);
g2.setStroke(dashed);
g2.drawRect(mouseRect.x, mouseRect.y, mouseRect.width, mouseRect.height);
}
if (waitingNewComponentPosition)
{
g2.setColor(Color.DARK_GRAY);
g2.setStroke(dashed);
g2.drawRect(correctedMousePt.x - 10, correctedMousePt.y - 10, 20, 20);
}
if (debug)
{
// On utilise un autre composant de dessin
// indépendant de la transformation affine pour afficher des informations en haut à gauche du panel.
gDebug.setColor(Color.RED);
showDebugInfo(gDebug);
}
g2.dispose();
}
@Override
public void mouseDragged(final MouseEvent e)
{
if (!waitingNewComponentPosition || debug)
{
final Point2D correctedOldPoint = getTranslatedPoint(mousePt.x, mousePt.y);
final Point2D correctedNewPoint = getTranslatedPoint(e.getX(), e.getY());
if (selecting)
{
mouseRect.setBounds((int)Math.min(correctedOldPoint.getX(), correctedNewPoint.getX()), (int)Math.min(correctedOldPoint.getY(), correctedNewPoint.getY()), (int)Math.abs(correctedOldPoint.getX() - correctedNewPoint.getX()), (int)Math.abs(correctedOldPoint.getY() - correctedNewPoint.getY()));
GraphicElement.selectRect(graphModel.getNodeSet(), mouseRect);
}
else
{
// On calcule la distance entre le clic et le déplacement de la souris
final Point delta = new Point();
delta.setLocation((correctedNewPoint.getX() - correctedOldPoint.getX()), correctedNewPoint.getY() - correctedOldPoint.getY());
GraphicElement.updatePosition(graphModel.getNodeSet(), delta);
mousePt.setLocation(e.getPoint());
}
repaint();
}
}
@Override
public void mouseMoved(final MouseEvent e)
{
final Point2D correctedCoordonates = getTranslatedPoint(e.getPoint().x, e.getPoint().y);
correctedMousePt.setLocation(correctedCoordonates.getX(), correctedCoordonates.getY());
if (waitingNewComponentPosition || debug)
{
mousePt.setLocation(e.getPoint());
repaint();
}
}
@Override
public void mouseClicked(final MouseEvent e)
{
if (waitingNewComponentPosition)
{
final Point2D correctedCoordonates = getTranslatedPoint(e.getPoint().x, e.getPoint().y);
final NewShapeAction action = parent.getCurrentAction();
action.setLocation(correctedCoordonates);
action.startAction(new ActionEvent(this, ActionEvent.ACTION_PERFORMED, null));
waitingNewComponentPosition = false;
}
}
@Override
public void mousePressed(final MouseEvent e)
{
if (!waitingNewComponentPosition)
{
mousePt.setLocation(e.getPoint());
final Point2D correctedCoordonates = getTranslatedPoint(mousePt.x, mousePt.y);
correctedMousePt.setLocation(correctedCoordonates.getX(), correctedCoordonates.getY());
// Shift + Clic Gauche
if (e.isShiftDown())
{
GraphicElement.selectToggle(graphModel.getNodeSet(), correctedMousePt);
}
// Clic droit
else if (e.isPopupTrigger())
{
GraphicElement.selectOne(graphModel.getNodeSet(), correctedMousePt);
showPopup(e);
}
// Clic sur un objet
else if (GraphicElement.selectOne(graphModel.getNodeSet(), correctedMousePt))
{
selecting = false;
}
else
{
GraphicElement.selectNone(graphModel.getNodeSet());
selecting = true;
}
}
repaint();
}
@Override
public void mouseReleased(final MouseEvent e)
{
selecting = false;
mouseRect.setBounds(0, 0, 0, 0);
if (e.isPopupTrigger())
{
showPopup(e);
}
repaint();
}
@Override
public void mouseWheelMoved(final MouseWheelEvent e)
{
if (e.isControlDown())
{
// final Point2D correctedCoordonates = getTranslatedPoint(e.getPoint().x, e.getPoint().y);
mousePt.setLocation(e.getPoint());
// System.out.println("1: ( " + zoomCenterX + "; " + zoomCenterY + " )");
// zoomCenterX = (int)(correctedCoordonates.getX());
// zoomCenterY = (int)(correctedCoordonates.getY());
zoomCenterX = 0;
zoomCenterY = 0;
// System.out.println("2 : ( " + zoomCenterX + "; " + zoomCenterY + " ) \n");
// Zoom
if (e.getWheelRotation() < 0)
{
zoom += .2 * -e.getWheelRotation();
zoom = Math.min(maxScale, zoom);
scaledPanelWidth = (int)(PANEL_WIDTH * zoom) > 0 ? (int)(PANEL_WIDTH * zoom) : PANEL_WIDTH;
scaledPanelHeight = (int)(PANEL_HEIGHT * zoom) > 0 ? (int)(PANEL_HEIGHT * zoom) : PANEL_HEIGHT;
}
// Dezoom
else
{
zoom += .2 * -e.getWheelRotation();
zoom = Math.max(minScale, zoom);
scaledPanelWidth = (int)(PANEL_WIDTH * zoom) > 0 ? (int)(PANEL_WIDTH * zoom) : PANEL_WIDTH;
scaledPanelHeight = (int)(PANEL_HEIGHT * zoom) > 0 ? (int)(PANEL_HEIGHT * zoom) : PANEL_HEIGHT;
}
setPreferredSize(new Dimension(scaledPanelWidth, scaledPanelHeight));
repaint();
}
}
@Override
public void mouseEntered(final MouseEvent e)
{
}
@Override
public void mouseExited(final MouseEvent e)
{
}
@Override
public void graphChanged()
{
repaint();
}
@Override
public void keyTyped(final KeyEvent e)
{
}
@Override
public void keyPressed(final KeyEvent e)
{
}
@Override
public void keyReleased(final KeyEvent _e)
{
// Si on a appuyé sur la touche échap
if (_e.getKeyCode() == KeyEvent.VK_ESCAPE)
{
// Juste après avoir cliqué sur new on annule la création
if (waitingNewComponentPosition)
{
waitingNewComponentPosition = false;
}
// Ou on annule la sélection
else
{
GraphicElement.selectNone(graphModel.getNodeSet());
}
repaint();
}
if (_e.getKeyCode() == KeyEvent.VK_ENTER)
{
zoom = 1.0d;
scaledPanelWidth = (int)(PANEL_WIDTH * zoom) > 0 ? (int)(PANEL_WIDTH * zoom) : PANEL_WIDTH;
scaledPanelHeight = (int)(PANEL_HEIGHT * zoom) > 0 ? (int)(PANEL_HEIGHT * zoom) : PANEL_HEIGHT;
repaint();
}
}
private void showPopup(final MouseEvent e)
{
parent.showPopup(e);
}
/**
* @return the waitingClicPosition
*/
public boolean isWaitingNewComponentPosition()
{
return waitingNewComponentPosition;
}
/**
* @param waitingClicPosition
* the waitingClicPosition to set
*/
public void setWaitingNewComponentPosition(final boolean _waitingComponentPosition)
{
// On met le focus sur la grille
requestFocus();
waitingNewComponentPosition = _waitingComponentPosition;
}
/**
* @param debug
* the debug to set
*/
public void enableDebugInfo(final boolean _debug)
{
debug = _debug;
}
private void setBackgroundTexture()
{
// Création de la texture pour le background
final BufferedImage bi = new BufferedImage(gap, gap, BufferedImage.TYPE_INT_RGB);
final Graphics2D big = bi.createGraphics();
big.setColor(Color.white);
big.fillRect(0, 0, gap, gap);
big.setColor(Color.blue);
big.drawLine(0, 0, 0, 0);
final Rectangle2D r = new Rectangle(0, 0, gap, gap);
texture = new TexturePaint(bi, r);
big.dispose();
}
private AffineTransform getCurrentTransform()
{
final AffineTransform tx = new AffineTransform();
tx.translate(zoomCenterX, zoomCenterY);
tx.scale(zoom, zoom);
tx.translate(-zoomCenterX, -zoomCenterY);
return tx;
}
private void incrementZoom(final double amount)
{
zoom += amount;
zoom = Math.max(minScale, zoom);
repaint();
}
/**
* Convert pixel coordonate to drawing coordonate according to affine transform
*
* @param _panelX
* @param _panelY
* @return
*/
private Point2D getTranslatedPoint(final int _panelX, final int _panelY)
{
final AffineTransform tx = getCurrentTransform();
final Point2D point2d = new Point2D.Double(_panelX, _panelY);
try
{
return tx.inverseTransform(point2d, null);
}
catch (final NoninvertibleTransformException ex)
{
ex.printStackTrace();
return null;
}
}
private void showDebugInfo(final Graphics2D _g2)
{
_g2.setColor(Color.RED);
final int x = 10;
int y = 20;
_g2.drawString("Panel size: " + scaledPanelWidth + ", " + scaledPanelHeight, x, y);
y += 15;
_g2.drawString("Mouse Coord in panel: " + correctedMousePt, x, y);
y += 15;
_g2.drawString("Mouse Coord pixel: " + mousePt, x, y);
y += 15;
int i = 0;
for (final GraphicElement n : graphModel.getNodeSet().getNodes())
{
if (n.isSelected())
{
_g2.drawString("Shape" + i + " coord: " + n.getLocation(), x, y + (i * 15));
i++;
}
}
_g2.drawString("test", x, y + (i * 15));
}
} |
Problème de transformée affine + zoom
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