private void drag(WebPlotView pv, ScreenPt spt) {
WebPlot plot = pv.getPrimaryPlot();
_mouseInfo.setEnableAllPersistent(true);
_mouseInfo.setEnableAllExclusive(false);
_currentPt = plot.getImageWorkSpaceCoords(spt);
_dataConnect.setData(makeSelectedObj(plot));
_drawMan.redraw();
}
@Override
public void onSuccess(WebPlotResult result) {
if (result.isSuccess()) {
plot.setPlotState((PlotState) result.getResult(WebPlotResult.PLOT_STATE));
plot.refreshWidget((PlotImages) result.getResult(WebPlotResult.PLOT_IMAGES));
plot.getPlotView().getMiniPlotWidget().forcePlotPrefUpdate();
} else {
PopupUtil.showError("Server Error", "Could not change color: " + result.getUserFailReason());
}
}
private void begin(WebPlotView pv, ScreenPt spt) {
WebPlot plot = pv.getPrimaryPlot();
pv.fixScrollPosition();
_mouseInfo.setEnableAllPersistent(true);
_mouseInfo.setEnableAllExclusive(false);
switch (_mode) {
case SELECT:
_firstPt = plot.getImageWorkSpaceCoords(spt);
_currentPt = _firstPt;
break;
case EDIT:
LineSelection sel = (LineSelection) pv.getAttribute(WebPlot.ACTIVE_DISTANCE);
if (sel == null) {
WebAssert.tst(false, "no RecSelection found in plot");
}
ImageWorkSpacePt ptAry[] = new ImageWorkSpacePt[] {sel.getPt1(), sel.getPt2()};
int idx = findClosestPtIdx(plot, ptAry, spt);
if (idx < 0) return;
ScreenPt testPt = plot.getScreenCoords(ptAry[idx]);
double dist = distance(testPt, spt);
if (dist < EDIT_DISTANCE && dist > -1) {
int oppoIdx = idx == 0 ? 1 : 0;
_firstPt = ptAry[oppoIdx];
_currentPt = ptAry[idx];
} else {
_firstPt = plot.getImageWorkSpaceCoords(spt);
_currentPt = _firstPt;
}
break;
case OFF:
releaseMouse();
break;
default:
WebAssert.argTst(false, "only support for SelectType of SELECT EDIT, OFF");
break;
}
}
private int findClosestPtIdx(WebPlot plot, Pt inPtAry[], ScreenPt spt) {
int idx = -1;
ScreenPt ptAry[] = new ScreenPt[inPtAry.length];
for (int i = 0; (i < ptAry.length); i++) {
ptAry[i] = plot.getScreenCoords(inPtAry[i]);
}
double dist = Double.MAX_VALUE;
double testDist;
for (int i = 0; (i < ptAry.length); i++) {
if (ptAry[i] != null) {
testDist = distance(ptAry[i], spt);
if (testDist < dist && testDist > -1) {
dist = testDist;
idx = i;
}
}
}
return idx;
}
@Override
public void doTask(AsyncCallback<WebPlotResult> passAlong) {
PlotServiceAsync pserv = PlotService.App.getInstance();
pserv.changeColor(plot.getPlotState(), colorIdx, passAlong);
}
public ColorTaskRPC(WebPlot plot, int colorIdx) {
super(plot.getPlotView().getMaskWidget(), "changing color...", true);
super.setMaskingDelaySec(1);
this.plot = plot;
this.colorIdx = colorIdx;
}
private List<DrawObj> makeSelectedObj(WebPlot plot) {
List<DrawObj> retval;
_ptAry[0] = _firstPt;
_ptAry[1] = _currentPt;
Projection proj = plot.getProjection();
Pt anyPt1;
Pt anyPt2;
double dist;
boolean world;
if (proj.isSpecified()) {
anyPt1 = plot.getWorldCoords(_ptAry[0]);
anyPt2 = plot.getWorldCoords(_ptAry[1]);
dist = VisUtil.computeDistance((WorldPt) anyPt1, (WorldPt) anyPt2);
world = true;
} else {
anyPt1 = _ptAry[0];
anyPt2 = _ptAry[1];
dist = VisUtil.computeDistance(anyPt1, anyPt2);
world = false;
}
if (anyPt1 == null || anyPt2 == null) return null;
ShapeDataObj obj = ShapeDataObj.makeLine(anyPt1, anyPt2);
obj.setStyle(ShapeDataObj.Style.HANDLED);
setDistOnShape(obj, dist, ShapeDataObj.TextLocation.LINE_MID_POINT, world);
obj.setTextOffset(new OffsetScreenPt(-15, 0));
OffsetScreenPt angleOffPt;
if (_posAngle) {
Pt eastPt;
Pt westPt;
if (anyPt1.getX() > anyPt2.getX()) {
eastPt = anyPt1;
westPt = anyPt2;
} else {
eastPt = anyPt2;
westPt = anyPt1;
}
ShapeDataObj adj;
ShapeDataObj op;
double adjDist;
double opDist;
Pt lonDelta1TextPt;
if (world) {
WorldPt lonDelta1 = new WorldPt(eastPt.getX(), eastPt.getY());
WorldPt lonDelta2 = new WorldPt(westPt.getX(), eastPt.getY());
adjDist = VisUtil.computeDistance(lonDelta1, lonDelta2);
WorldPt latDelta1 = new WorldPt(westPt.getX(), eastPt.getY());
WorldPt latDelta2 = new WorldPt(westPt.getX(), westPt.getY());
opDist = VisUtil.computeDistance(latDelta1, latDelta2);
adj = ShapeDataObj.makeLine(lonDelta1, lonDelta2);
op = ShapeDataObj.makeLine(latDelta1, latDelta2);
lonDelta1TextPt = lonDelta1;
} else {
ImageWorkSpacePt lonDelta1 = new ImageWorkSpacePt(eastPt.getX(), eastPt.getY());
ImageWorkSpacePt lonDelta2 = new ImageWorkSpacePt(westPt.getX(), eastPt.getY());
adjDist = VisUtil.computeDistance(lonDelta1, lonDelta2);
ImageWorkSpacePt latDelta1 = new ImageWorkSpacePt(westPt.getX(), eastPt.getY());
ImageWorkSpacePt latDelta2 = new ImageWorkSpacePt(westPt.getX(), westPt.getY());
opDist = VisUtil.computeDistance(latDelta1, latDelta2);
adj = ShapeDataObj.makeLine(lonDelta1, lonDelta2);
op = ShapeDataObj.makeLine(latDelta1, latDelta2);
lonDelta1TextPt = lonDelta1;
}
setDistOnShape(adj, adjDist, ShapeDataObj.TextLocation.LINE_MID_POINT_OR_BOTTOM, world);
setDistOnShape(op, opDist, ShapeDataObj.TextLocation.LINE_MID_POINT_OR_TOP, world);
op.setTextOffset(new OffsetScreenPt(0, 15));
double sinX = opDist / dist;
double angle = Math.toDegrees(Math.asin(sinX));
String aStr = _nf.format(angle) + HTML_DEG;
ShapeDataObj angleShape =
ShapeDataObj.makeText(new OffsetScreenPt(8, -8), lonDelta1TextPt, aStr);
retval = Arrays.asList((DrawObj) obj, adj, op, angleShape);
} else {
retval = Arrays.asList((DrawObj) obj);
}
return retval;
}
