/**
* Constructs an image edit mode with specified manager.
*
* @param modeManager the mode manager for this mode.
*/
public ImageEditMode(ModeManager modeManager, PixelsView pixels, float vnull, float[][] v) {
super(modeManager);
setName("Edit");
// setIcon(loadIcon(ImageEditMode.class,"resources/ImageEdit16.gif"));
// setIcon(loadIcon(MouseTrackMode.class,"resources/Track24.gif"));
setMnemonicKey(KeyEvent.VK_E);
setAcceleratorKey(KeyStroke.getKeyStroke(KeyEvent.VK_E, 0));
setShortDescription("Edit points");
_tile = pixels.getTile();
_pixels = pixels;
fill(vnull, v);
_vnull = vnull;
_n1 = v[0].length;
_n2 = v.length;
_v = v;
_is2 = new ImageSampler2(_v);
_ns = 0;
_x1 = new float[0][0];
_x2 = new float[0][0];
_vx = new float[0][0];
_points = new PointsView(_x1, _x2);
if (pixels.getOrientation() == PixelsView.Orientation.X1RIGHT_X2UP) {
_points.setOrientation(PointsView.Orientation.X1RIGHT_X2UP);
} else {
_points.setOrientation(PointsView.Orientation.X1DOWN_X2RIGHT);
}
_points.setStyle("w-o");
}
/**
* A mode for editing an image by drawing curves. <em> This class is a hack for testing
* diffusion/interpolation ideas. </em>
*
* @author Dave Hale, Colorado School of Mines
* @version 2007.09.06
*/
public class ImageEditMode extends Mode {
private static final long serialVersionUID = 1L;
/**
* Constructs an image edit mode with specified manager.
*
* @param modeManager the mode manager for this mode.
*/
public ImageEditMode(ModeManager modeManager, PixelsView pixels, float vnull, float[][] v) {
super(modeManager);
setName("Edit");
// setIcon(loadIcon(ImageEditMode.class,"resources/ImageEdit16.gif"));
// setIcon(loadIcon(MouseTrackMode.class,"resources/Track24.gif"));
setMnemonicKey(KeyEvent.VK_E);
setAcceleratorKey(KeyStroke.getKeyStroke(KeyEvent.VK_E, 0));
setShortDescription("Edit points");
_tile = pixels.getTile();
_pixels = pixels;
fill(vnull, v);
_vnull = vnull;
_n1 = v[0].length;
_n2 = v.length;
_v = v;
_is2 = new ImageSampler2(_v);
_ns = 0;
_x1 = new float[0][0];
_x2 = new float[0][0];
_vx = new float[0][0];
_points = new PointsView(_x1, _x2);
if (pixels.getOrientation() == PixelsView.Orientation.X1RIGHT_X2UP) {
_points.setOrientation(PointsView.Orientation.X1RIGHT_X2UP);
} else {
_points.setOrientation(PointsView.Orientation.X1DOWN_X2RIGHT);
}
_points.setStyle("w-o");
}
///////////////////////////////////////////////////////////////////////////
// protected
protected void setActive(Component component, boolean active) {
if (component instanceof Tile) {
Tile tile = (Tile) component;
if (active) {
tile.addTiledView(_points);
tile.addMouseListener(_ml);
tile.addMouseWheelListener(_mwl);
InputMap im = tile.getInputMap();
ActionMap am = tile.getActionMap();
im.put(KS_BACK_SPACE, "backspace");
im.put(KS_UP, "up");
im.put(KS_DOWN, "down");
am.put("backspace", _bsa);
am.put("up", _uaa);
am.put("down", _daa);
} else {
tile.removeTiledView(_points);
tile.removeMouseListener(_ml);
tile.removeMouseWheelListener(_mwl);
InputMap im = tile.getInputMap();
ActionMap am = tile.getActionMap();
im.remove(KS_BACK_SPACE);
im.remove(KS_UP);
im.remove(KS_DOWN);
am.remove("backspace");
am.remove("up");
am.remove("down");
}
}
}
///////////////////////////////////////////////////////////////////////////
// private
private Tile _tile; // tile containing the pixels view
private PixelsView _pixels; // pixels view of image to edit
private PointsView _points; // points view of editing curves
private int _isSelected = -1; // index of selected segment
private int _ipSelected = -1; // index of selected point
private boolean _creating; // true if in process of creating a segment
float _vnull; // the null (unknown) image value
private int _n1; // number of samples in 1st dimension of image
private int _n2; // number of samples in 2nd dimension of image
float[][] _v; // array[n2][n1] of image values to edit
private int _ns; // number of segments
float[][] _x1; // x1 coordinates of points in segments
float[][] _x2; // x2 coordinates of points in segments
float[][] _vx; // values v(x1,x2)
private int _xdown; // x coordinate where mouse down
private int _ydown; // y coordinate where mouse down
private int _xedit; // x coordinate of current edit
private int _yedit; // y coordinate of current edit
private boolean _hasMotionListener; // true if handling mouse drag
private ImageSampler2 _is2; // used to get/set image samples
// Event handlers.
private static KeyStroke KS_BACK_SPACE = KeyStroke.getKeyStroke(KeyEvent.VK_BACK_SPACE, 0);
private static KeyStroke KS_DOWN = KeyStroke.getKeyStroke(KeyEvent.VK_DOWN, 0);
private static KeyStroke KS_UP = KeyStroke.getKeyStroke(KeyEvent.VK_UP, 0);
private Action _bsa =
new AbstractAction() {
public void actionPerformed(ActionEvent e) {
onBackSpace();
}
};
private Action _uaa =
new AbstractAction() {
public void actionPerformed(ActionEvent e) {
onArrow(1.0f);
}
};
private Action _daa =
new AbstractAction() {
public void actionPerformed(ActionEvent e) {
onArrow(-1.0f);
}
};
private MouseListener _ml =
new MouseAdapter() {;
public void mousePressed(MouseEvent e) {
onMouseDown(e);
}
public void mouseReleased(MouseEvent e) {
onMouseUp(e);
}
};
private MouseWheelListener _mwl =
new MouseWheelListener() {;
public void mouseWheelMoved(MouseWheelEvent e) {
onMouseWheel(e);
}
};
private MouseMotionListener _mml =
new MouseMotionAdapter() {
public void mouseDragged(MouseEvent e) {
onMouseDrag(e);
}
};
private void onBackSpace() {
removeSelectedPoint();
updateAll();
}
private void removeSelectedPoint() {
int is = _isSelected;
int ip = _ipSelected;
if (is >= 0 && ip >= 0) {
removePoint(is, ip);
deselect();
}
}
private void onArrow(float dv) {
int is = _isSelected;
int ip = _ipSelected;
if (is >= 0 && ip >= 0) {
_vx[is][ip] += dv;
trace("value=" + _vx[is][ip]);
updateImage();
updatePixelsView();
}
}
private void onMouseDown(MouseEvent e) {
if (_tile != getTile(e)) return;
// Remember mouse down location.
int x = _xdown = e.getX();
int y = _ydown = e.getY();
// What segment and point, if any, was clicked?
int[] i = {0, 0}, p = {0, 0};
int icode = getSegmentAndPoint(x, y, i, p);
int is = i[0], ip = i[1];
int xp = p[0], yp = p[1];
// trace("onMouseDown: is="+is+" ip="+ip);
// If currently in the process of creating a new segment, ...
if (_creating) {
// If mouse is on previous (selected) point in the created segment,
// then end segment creation.
if (icode == 1 && isSelected(is, ip)) {
_creating = false;
}
// Else append a new point to the created segment.
else {
is = _isSelected;
ip = appendPoint(x, y);
selectPoint(is, ip);
addMotionListener();
}
}
// Else if not currently in the process of creating a new segment, ...
else {
// If mouse on existing point, ...
if (icode == 1) {
// If alt key down, delete the point.
if (e.isAltDown()) {
selectPoint(is, ip);
removeSelectedPoint();
}
// Else, select the point
else {
selectPoint(is, ip);
addMotionListener();
}
}
// Else if mouse on existing segment, ...
else if (icode == 2) {
// If shift key down, add a new point to existing segment.
if (e.isShiftDown()) {
insertPoint(is, ip, x, y);
selectPoint(is, ip);
addMotionListener();
}
}
// Else if mouse down away from all segments, ...
else {
// If shift key down, create a new segment.
if (e.isShiftDown()) {
is = appendSegment(x, y);
ip = 0;
selectPoint(is, ip);
addMotionListener();
_creating = true;
}
// Else deselect all points.
else {
deselect();
}
}
}
updateAll();
}
private void onMouseDrag(MouseEvent e) {
changeSelectedPoint(e.getX(), e.getY());
updateAll();
}
private void onMouseUp(MouseEvent e) {
if (hasMotionListener()) {
changeSelectedPoint(e.getX(), e.getY());
removeMotionListener();
}
updateAll();
}
private void onMouseWheel(MouseWheelEvent e) {
float dv = (float) (-e.getWheelRotation());
// trace("dv="+dv);
onArrow(dv);
}
private void addMotionListener() {
_tile.addMouseMotionListener(_mml);
_hasMotionListener = true;
}
private void removeMotionListener() {
_tile.removeMouseMotionListener(_mml);
_hasMotionListener = false;
}
private boolean hasMotionListener() {
return _hasMotionListener;
}
private Tile getTile(MouseEvent e) {
return (Tile) e.getSource();
}
private void updateAll() {
updateImage();
updatePixelsView();
updatePointsView();
}
private void updateImage() {
fill(_vnull, _v);
for (int is = 0; is < _ns; ++is) {
float[] x1 = _x1[is];
float[] x2 = _x2[is];
float[] vx = _vx[is];
int np = _x1[is].length;
if (np == 1) {
_is2.set(x1[0], x2[0], vx[0]);
} else if (np > 1) {
for (int ip = 1; ip < np; ++ip) {
float x1a = x1[ip - 1];
float x2a = x2[ip - 1];
float vxa = vx[ip - 1];
float x1b = x1[ip];
float x2b = x2[ip];
float vxb = vx[ip];
ImageSampler2.Line line = _is2.sampleLine(x1a, x2a, x1b, x2b);
int nr = line.nr();
float ra = line.ra();
float rb = line.rb();
float dvx = (nr > 1) ? (vxb - vxa) / (float) (nr - 1) : vxa;
for (int ir = 0; ir < nr; ++ir) {
float vxi = vxa + (float) ir * dvx;
line.set(ir, vxi);
}
}
}
}
}
private void updatePixelsView() {
_pixels.set(_v);
}
private void updatePointsView() {
_points.set(_x1, _x2);
}
private int x(float x1, float x2) {
Transcaler ts = _tile.getTranscaler();
PointsView.Orientation pvo = _points.getOrientation();
if (pvo == PointsView.Orientation.X1RIGHT_X2UP) {
Projector p = _tile.getHorizontalProjector();
return ts.x(p.u(x1));
} else {
Projector p = _tile.getVerticalProjector();
return ts.x(p.u(x2));
}
}
private int y(float x1, float x2) {
Transcaler ts = _tile.getTranscaler();
PointsView.Orientation pvo = _points.getOrientation();
if (pvo == PointsView.Orientation.X1RIGHT_X2UP) {
Projector p = _tile.getHorizontalProjector();
return ts.y(p.u(x2));
} else {
Projector p = _tile.getVerticalProjector();
return ts.y(p.u(x1));
}
}
private float x1(int x, int y) {
Transcaler ts = _tile.getTranscaler();
PointsView.Orientation pvo = _points.getOrientation();
if (pvo == PointsView.Orientation.X1RIGHT_X2UP) {
Projector p = _tile.getHorizontalProjector();
return (float) p.v(ts.x(x));
} else {
Projector p = _tile.getVerticalProjector();
return (float) p.v(ts.y(y));
}
}
private float x2(int x, int y) {
Transcaler ts = _tile.getTranscaler();
PointsView.Orientation pvo = _points.getOrientation();
if (pvo == PointsView.Orientation.X1RIGHT_X2UP) {
Projector p = _tile.getHorizontalProjector();
return (float) p.v(ts.y(y));
} else {
Projector p = _tile.getVerticalProjector();
return (float) p.v(ts.x(x));
}
}
private static double pointToPointSquared(double xp, double yp, double xa, double ya) {
double xq = xp - xa;
double yq = yp - ya;
return xq * xq + yq * yq;
}
private static double pointToSegmentSquared(
double xp, double yp, double xa, double ya, double xb, double yb, double[] q) {
double xq = xp - xa;
double yq = yp - ya;
double xr = xb - xa;
double yr = yb - ya;
double rn = xq * xr + yq * yr;
if (rn <= 0.0) {
xq = xa;
yq = ya;
} else {
double rd = xr * xr + yr * yr;
if (rd <= rn) {
xq = xb;
yq = yb;
} else {
double r = rn / rd;
xq = xa + r * xr;
yq = ya + r * yr;
}
}
if (q != null) {
q[0] = xq;
q[1] = yq;
}
xq -= xp;
yq -= yp;
return xq * xq + yq * yq;
}
private void changeSelectedPoint(int x, int y) {
changePoint(_isSelected, _ipSelected, x, y);
}
private void changePoint(int is, int ip, int x, int y) {
// trace("changePoint: is="+is+" ip="+ip);
_x1[is][ip] = x1(x, y);
_x2[is][ip] = x2(x, y);
}
private int appendPoint(int is, int x, int y) {
int ip = _x1[is].length;
insertPoint(is, ip, x, y);
return ip;
}
private int appendPoint(int x, int y) {
return appendPoint(_ns - 1, _xdown, _ydown);
}
private int appendSegment(int x, int y) {
insertPoint(_ns, 0, x, y);
return _ns - 1;
}
private void insertPoint(int is, int ip, int x, int y) {
Check.argument(is <= _ns, "is in bounds");
Check.argument(is == _ns && ip == 0 || is < _ns && ip <= _x1[is].length, "is in bounds");
if (is == _ns) {
int ns = is + 1;
float[][] x1 = new float[ns][0];
float[][] x2 = new float[ns][0];
float[][] vx = new float[ns][0];
for (int js = 0; js < _ns; ++js) {
x1[js] = _x1[js];
x2[js] = _x2[js];
vx[js] = _vx[js];
}
_x1 = x1;
_x2 = x2;
_vx = vx;
_ns = ns;
}
int np = _x1[is].length;
float[] x1p = _x1[is];
float[] x2p = _x2[is];
float[] vxp = _vx[is];
float[] x1t = new float[np + 1];
float[] x2t = new float[np + 1];
float[] vxt = new float[np + 1];
for (int jp = 0; jp < ip; ++jp) {
x1t[jp] = x1p[jp];
x2t[jp] = x2p[jp];
vxt[jp] = vxp[jp];
}
x1t[ip] = x1(x, y);
x2t[ip] = x2(x, y);
vxt[ip] = _is2.get(x1t[ip], x2t[ip]);
for (int jp = ip; jp < np; ++jp) {
x1t[jp + 1] = x1p[jp];
x2t[jp + 1] = x2p[jp];
vxt[jp + 1] = vxp[jp];
}
_x1[is] = x1t;
_x2[is] = x2t;
_vx[is] = vxt;
}
private void removePoint(int is, int ip) {
int np = _x1[is].length;
if (np == 1) {
float[][] x1t = new float[_ns - 1][];
float[][] x2t = new float[_ns - 1][];
float[][] vxt = new float[_ns - 1][];
for (int js = 0; js < is; ++js) {
x1t[js] = _x1[js];
x2t[js] = _x2[js];
vxt[js] = _vx[js];
}
for (int js = is + 1; js < _ns; ++js) {
x1t[js - 1] = _x1[js];
x2t[js - 1] = _x2[js];
vxt[js - 1] = _vx[js];
}
--_ns;
_x1 = x1t;
_x2 = x2t;
_vx = vxt;
} else {
float[] x1p = _x1[is];
float[] x2p = _x2[is];
float[] vxp = _vx[is];
float[] x1t = new float[np - 1];
float[] x2t = new float[np - 1];
float[] vxt = new float[np - 1];
for (int jp = 0; jp < ip; ++jp) {
x1t[jp] = x1p[jp];
x2t[jp] = x2p[jp];
vxt[jp] = vxp[jp];
}
for (int jp = ip + 1; jp < np; ++jp) {
x1t[jp - 1] = x1p[jp];
x2t[jp - 1] = x2p[jp];
vxt[jp - 1] = vxp[jp];
}
_x1[is] = x1t;
_x2[is] = x2t;
_vx[is] = vxt;
}
}
private boolean isSelected(int is, int ip) {
return _isSelected == is && _ipSelected == ip;
}
private void selectPoint(int is, int ip) {
_isSelected = is;
_ipSelected = ip;
}
private void deselect() {
_isSelected = -1;
_ipSelected = -1;
}
/**
* Gets indices of a nearby segment and point, if close enough. If an existing segment is close
* enough, both segment and point indices {is,ip} are returned. If an existing point on the
* segment is close enough, then ip is the index of that existing point. Otherwise, if a line
* between two existing points is close enough, then ip is the larger index of those two existing
* points. In both cases, the pixel coordinates {x,y} of the closest point are returned. If no
* existing segment is close enough, then {is,ip} = {-1,-1}.
*
* @param x the x coordinate in pixels.
* @param y the y coordinate in pixels.
* @param i array {is,ip} of indices of segment and point; {-1,-1} if none.
* @param p array {xp,yp} coordinates of close point. This point could be an existing point or a
* point on a line between two existing points.
* @return 0, if no existing segment (or point) is close enough; 1, if the closest point already
* exists in a segment; 2, if the closest point lies on a segment between two existing points
* in that segment.
*/
private int getSegmentAndPoint(int x, int y, int[] i, int[] p) {
double[] pt = {0.0, 0.0};
double dpmin = 25.0; // distance must be less than 5 pixels
double dsmin = 25.0; // 25 is this distance squared
int icode = 0; // initially assume no segment is close enough
int ipmin = -1;
int ismin = -1;
int xtmin = -1;
int ytmin = -1;
for (int is = 0; is < _ns; ++is) {
double xa = 0.0;
double ya = 0.0;
double xb = 0.0;
double yb = 0.0;
int np = _x1[is].length;
for (int ip = 0; ip < np; ++ip) {
xb = xa;
yb = ya;
xa = x(_x1[is][ip], _x2[is][ip]);
ya = y(_x1[is][ip], _x2[is][ip]);
double dp = pointToPointSquared(x, y, xa, ya);
if (dp < dpmin) {
ipmin = ip;
ismin = is;
dpmin = dp;
xtmin = (int) (xa + 0.5);
ytmin = (int) (ya + 0.5);
icode = 1;
} else if (ip > 0 && icode != 1) {
double ds = pointToSegmentSquared(x, y, xa, ya, xb, yb, pt);
if (ds < dsmin) {
ipmin = ip;
ismin = is;
dsmin = ds;
xtmin = (int) (pt[0] + 0.5);
ytmin = (int) (pt[1] + 0.5);
icode = 2;
}
}
}
}
i[0] = ismin;
i[1] = ipmin;
p[0] = xtmin;
p[1] = ytmin;
return icode;
}
private void drawLine(JComponent c, int x, int y) {
_xedit = x;
_yedit = y;
Graphics g = c.getGraphics();
g.setColor(Color.BLACK);
g.setXORMode(c.getBackground());
g.drawLine(_xdown, _ydown, _xedit, _yedit);
g.dispose();
}
public static void main(String[] args) {
SwingUtilities.invokeLater(
new Runnable() {
public void run() {
go();
}
});
}
private static void go() {
int n1 = 101;
int n2 = 101;
// float[][] f = sin(rampfloat(0.0f,0.1f,0.1f,n1,n2));
float[][] f = zerofloat(n1, n2);
PlotPanel.Orientation orientation = PlotPanel.Orientation.X1DOWN_X2RIGHT;
PlotPanel panel = new PlotPanel(orientation);
PixelsView pv = panel.addPixels(f);
pv.setInterpolation(PixelsView.Interpolation.NEAREST);
pv.setColorModel(ColorMap.JET);
panel.addColorBar("time");
panel.setVLabel("depth (km)");
panel.setHLabel("distance (km)");
PlotFrame frame = new PlotFrame(panel);
frame.setDefaultCloseOperation(PlotFrame.EXIT_ON_CLOSE);
frame.setSize(800, 700);
frame.setFontSize(24);
frame.setVisible(true);
ModeManager mm = frame.getModeManager();
ImageEditMode iem = new ImageEditMode(mm, pv, 0.0f, f);
iem.setActive(true);
}
private void trace(String s) {
System.out.println(s);
}
}