Merge pull request #596 from campagnola/fix-polyline-click

Fix polyline click
This commit is contained in:
Luke Campagnola 2017-10-17 21:30:59 -07:00 committed by GitHub
commit 22b0ddaa21
3 changed files with 24 additions and 143 deletions

View File

@ -113,7 +113,6 @@ class ROI(GraphicsObject):
sigRemoveRequested = QtCore.Signal(object)
def __init__(self, pos, size=Point(1, 1), angle=0.0, invertible=False, maxBounds=None, snapSize=1.0, scaleSnap=False, translateSnap=False, rotateSnap=False, parent=None, pen=None, movable=True, removable=False):
#QObjectWorkaround.__init__(self)
GraphicsObject.__init__(self, parent)
self.setAcceptedMouseButtons(QtCore.Qt.NoButton)
pos = Point(pos)
@ -148,7 +147,6 @@ class ROI(GraphicsObject):
self.translateSnap = translateSnap
self.rotateSnap = rotateSnap
self.scaleSnap = scaleSnap
#self.setFlag(self.ItemIsSelectable, True)
def getState(self):
return self.stateCopy()
@ -268,7 +266,6 @@ class ROI(GraphicsObject):
raise TypeError("update argument must be bool")
self.state['angle'] = angle
tr = QtGui.QTransform()
#tr.rotate(-angle * 180 / np.pi)
tr.rotate(angle)
self.setTransform(tr)
if update:
@ -316,20 +313,14 @@ class ROI(GraphicsObject):
newState = self.stateCopy()
newState['pos'] = newState['pos'] + pt
## snap position
#snap = kargs.get('snap', None)
#if (snap is not False) and not (snap is None and self.translateSnap is False):
snap = kargs.get('snap', None)
if snap is None:
snap = self.translateSnap
if snap is not False:
newState['pos'] = self.getSnapPosition(newState['pos'], snap=snap)
#d = ev.scenePos() - self.mapToScene(self.pressPos)
if self.maxBounds is not None:
r = self.stateRect(newState)
#r0 = self.sceneTransform().mapRect(self.boundingRect())
d = Point(0,0)
if self.maxBounds.left() > r.left():
d[0] = self.maxBounds.left() - r.left()
@ -341,12 +332,9 @@ class ROI(GraphicsObject):
d[1] = self.maxBounds.bottom() - r.bottom()
newState['pos'] += d
#self.state['pos'] = newState['pos']
update = kargs.get('update', True)
finish = kargs.get('finish', True)
self.setPos(newState['pos'], update=update, finish=finish)
#if 'update' not in kargs or kargs['update'] is True:
#self.stateChanged()
def rotate(self, angle, update=True, finish=True):
"""
@ -583,7 +571,6 @@ class ROI(GraphicsObject):
## Note: by default, handles are not user-removable even if this method returns True.
return True
def getLocalHandlePositions(self, index=None):
"""Returns the position of handles in the ROI's coordinate system.
@ -629,7 +616,6 @@ class ROI(GraphicsObject):
for h in self.handles:
h['item'].hide()
def hoverEvent(self, ev):
hover = False
if not ev.isExit():
@ -870,10 +856,8 @@ class ROI(GraphicsObject):
r = self.stateRect(newState)
if not self.maxBounds.contains(r):
return
#self.setTransform(tr)
self.setPos(newState['pos'], update=False)
self.setAngle(ang, update=False)
#self.state = newState
## If this is a free-rotate handle, its distance from the center may change.
@ -898,7 +882,6 @@ class ROI(GraphicsObject):
if ang is None:
return
if self.rotateSnap or (modifiers & QtCore.Qt.ControlModifier):
#ang = round(ang / (np.pi/12.)) * (np.pi/12.)
ang = round(ang / 15.) * 15.
hs = abs(h['pos'][scaleAxis] - c[scaleAxis])
@ -949,9 +932,6 @@ class ROI(GraphicsObject):
if h['item'] in self.childItems():
p = h['pos']
h['item'].setPos(h['pos'] * self.state['size'])
#else:
# trans = self.state['pos']-self.lastState['pos']
# h['item'].setPos(h['pos'] + h['item'].parentItem().mapFromParent(trans))
self.update()
self.sigRegionChanged.emit(self)
@ -971,12 +951,10 @@ class ROI(GraphicsObject):
def stateRect(self, state):
r = QtCore.QRectF(0, 0, state['size'][0], state['size'][1])
tr = QtGui.QTransform()
#tr.rotate(-state['angle'] * 180 / np.pi)
tr.rotate(-state['angle'])
r = tr.mapRect(r)
return r.adjusted(state['pos'][0], state['pos'][1], state['pos'][0], state['pos'][1])
def getSnapPosition(self, pos, snap=None):
## Given that pos has been requested, return the nearest snap-to position
## optionally, snap may be passed in to specify a rectangular snap grid.
@ -996,7 +974,6 @@ class ROI(GraphicsObject):
return QtCore.QRectF(0, 0, self.state['size'][0], self.state['size'][1]).normalized()
def paint(self, p, opt, widget):
# p.save()
# Note: don't use self.boundingRect here, because subclasses may need to redefine it.
r = QtCore.QRectF(0, 0, self.state['size'][0], self.state['size'][1]).normalized()
@ -1005,7 +982,6 @@ class ROI(GraphicsObject):
p.translate(r.left(), r.top())
p.scale(r.width(), r.height())
p.drawRect(0, 0, 1, 1)
# p.restore()
def getArraySlice(self, data, img, axes=(0,1), returnSlice=True):
"""Return a tuple of slice objects that can be used to slice the region
@ -1133,11 +1109,8 @@ class ROI(GraphicsObject):
lvx = np.sqrt(vx.x()**2 + vx.y()**2)
lvy = np.sqrt(vy.x()**2 + vy.y()**2)
#pxLen = img.width() / float(data.shape[axes[0]])
##img.width is number of pixels, not width of item.
##need pxWidth and pxHeight instead of pxLen ?
#sx = pxLen / lvx
#sy = pxLen / lvy
sx = 1.0 / lvx
sy = 1.0 / lvy
@ -1167,7 +1140,6 @@ class ROI(GraphicsObject):
if width == 0 or height == 0:
return np.empty((width, height), dtype=float)
# QImage(width, height, format)
im = QtGui.QImage(width, height, QtGui.QImage.Format_ARGB32)
im.fill(0x0)
p = QtGui.QPainter(im)
@ -1198,27 +1170,6 @@ class ROI(GraphicsObject):
t2 = SRTTransform(st)
return t2/t1
#st = self.getState()
### rotation
#ang = (st['angle']-relativeTo['angle']) * 180. / 3.14159265358
#rot = QtGui.QTransform()
#rot.rotate(-ang)
### We need to come up with a universal transformation--one that can be applied to other objects
### such that all maintain alignment.
### More specifically, we need to turn the ROI's position and angle into
### a rotation _around the origin_ and a translation.
#p0 = Point(relativeTo['pos'])
### base position, rotated
#p1 = rot.map(p0)
#trans = Point(st['pos']) - p1
#return trans, ang
def applyGlobalTransform(self, tr):
st = self.getState()
@ -1239,8 +1190,6 @@ class Handle(UIGraphicsItem):
Handles may be dragged to change the position, size, orientation, or other
properties of the ROI they are attached to.
"""
types = { ## defines number of sides, start angle for each handle type
't': (4, np.pi/4),
@ -1255,9 +1204,6 @@ class Handle(UIGraphicsItem):
sigRemoveRequested = QtCore.Signal(object) # self
def __init__(self, radius, typ=None, pen=(200, 200, 220), parent=None, deletable=False):
#print " create item with parent", parent
#self.bounds = QtCore.QRectF(-1e-10, -1e-10, 2e-10, 2e-10)
#self.setFlags(self.ItemIgnoresTransformations | self.ItemSendsScenePositionChanges)
self.rois = []
self.radius = radius
self.typ = typ
@ -1276,7 +1222,6 @@ class Handle(UIGraphicsItem):
self.deletable = deletable
if deletable:
self.setAcceptedMouseButtons(QtCore.Qt.RightButton)
#self.updateShape()
self.setZValue(11)
def connectROI(self, roi):
@ -1285,13 +1230,6 @@ class Handle(UIGraphicsItem):
def disconnectROI(self, roi):
self.rois.remove(roi)
#for i, r in enumerate(self.roi):
#if r[0] == roi:
#self.roi.pop(i)
#def close(self):
#for r in self.roi:
#r.removeHandle(self)
def setDeletable(self, b):
self.deletable = b
@ -1317,21 +1255,12 @@ class Handle(UIGraphicsItem):
else:
self.currentPen = self.pen
self.update()
#if (not ev.isExit()) and ev.acceptDrags(QtCore.Qt.LeftButton):
#self.currentPen = fn.mkPen(255, 255,0)
#else:
#self.currentPen = self.pen
#self.update()
def mouseClickEvent(self, ev):
## right-click cancels drag
if ev.button() == QtCore.Qt.RightButton and self.isMoving:
self.isMoving = False ## prevents any further motion
self.movePoint(self.startPos, finish=True)
#for r in self.roi:
#r[0].cancelMove()
ev.accept()
elif int(ev.button() & self.acceptedMouseButtons()) > 0:
ev.accept()
@ -1341,12 +1270,6 @@ class Handle(UIGraphicsItem):
else:
ev.ignore()
#elif self.deletable:
#ev.accept()
#self.raiseContextMenu(ev)
#else:
#ev.ignore()
def buildMenu(self):
menu = QtGui.QMenu()
menu.setTitle("Handle")
@ -1416,36 +1339,10 @@ class Handle(UIGraphicsItem):
self.path.lineTo(x, y)
def paint(self, p, opt, widget):
### determine rotation of transform
#m = self.sceneTransform()
##mi = m.inverted()[0]
#v = m.map(QtCore.QPointF(1, 0)) - m.map(QtCore.QPointF(0, 0))
#va = np.arctan2(v.y(), v.x())
### Determine length of unit vector in painter's coords
##size = mi.map(Point(self.radius, self.radius)) - mi.map(Point(0, 0))
##size = (size.x()*size.x() + size.y() * size.y()) ** 0.5
#size = self.radius
#bounds = QtCore.QRectF(-size, -size, size*2, size*2)
#if bounds != self.bounds:
#self.bounds = bounds
#self.prepareGeometryChange()
p.setRenderHints(p.Antialiasing, True)
p.setPen(self.currentPen)
#p.rotate(va * 180. / 3.1415926)
#p.drawPath(self.path)
p.drawPath(self.shape())
#ang = self.startAng + va
#dt = 2*np.pi / self.sides
#for i in range(0, self.sides):
#x1 = size * cos(ang)
#y1 = size * sin(ang)
#x2 = size * cos(ang+dt)
#y2 = size * sin(ang+dt)
#ang += dt
#p.drawLine(Point(x1, y1), Point(x2, y2))
def shape(self):
if self._shape is None:
@ -1457,18 +1354,10 @@ class Handle(UIGraphicsItem):
return self._shape
def boundingRect(self):
#print 'roi:', self.roi
s1 = self.shape()
#print " s1:", s1
#s2 = self.shape()
#print " s2:", s2
return self.shape().boundingRect()
def generateShape(self):
## determine rotation of transform
#m = self.sceneTransform() ## Qt bug: do not access sceneTransform() until we know this object has a scene.
#mi = m.inverted()[0]
dt = self.deviceTransform()
if dt is None:
@ -1486,22 +1375,15 @@ class Handle(UIGraphicsItem):
return dti.map(tr.map(self.path))
def viewTransformChanged(self):
GraphicsObject.viewTransformChanged(self)
self._shape = None ## invalidate shape, recompute later if requested.
self.update()
#def itemChange(self, change, value):
#if change == self.ItemScenePositionHasChanged:
#self.updateShape()
class TestROI(ROI):
def __init__(self, pos, size, **args):
#QtGui.QGraphicsRectItem.__init__(self, pos[0], pos[1], size[0], size[1])
ROI.__init__(self, pos, size, **args)
#self.addTranslateHandle([0, 0])
self.addTranslateHandle([0.5, 0.5])
self.addScaleHandle([1, 1], [0, 0])
self.addScaleHandle([0, 0], [1, 1])
@ -1511,7 +1393,6 @@ class TestROI(ROI):
self.addRotateHandle([0, 1], [1, 1])
class RectROI(ROI):
"""
Rectangular ROI subclass with a single scale handle at the top-right corner.
@ -1530,14 +1411,12 @@ class RectROI(ROI):
"""
def __init__(self, pos, size, centered=False, sideScalers=False, **args):
#QtGui.QGraphicsRectItem.__init__(self, 0, 0, size[0], size[1])
ROI.__init__(self, pos, size, **args)
if centered:
center = [0.5, 0.5]
else:
center = [0, 0]
#self.addTranslateHandle(center)
self.addScaleHandle([1, 1], center)
if sideScalers:
self.addScaleHandle([1, 0.5], [center[0], 0.5])
@ -1646,7 +1525,6 @@ class MultiRectROI(QtGui.QGraphicsObject):
rgn = l.getArrayRegion(arr, img, axes=axes, **kwds)
if rgn is None:
continue
#return None
rgns.append(rgn)
#print l.state['size']
@ -1731,7 +1609,6 @@ class EllipseROI(ROI):
"""
def __init__(self, pos, size, **args):
#QtGui.QGraphicsRectItem.__init__(self, 0, 0, size[0], size[1])
self.path = None
ROI.__init__(self, pos, size, **args)
self.sigRegionChanged.connect(self._clearPath)
@ -1835,22 +1712,14 @@ class PolygonROI(ROI):
if pos is None:
pos = [0,0]
ROI.__init__(self, pos, [1,1], **args)
#ROI.__init__(self, positions[0])
for p in positions:
self.addFreeHandle(p)
self.setZValue(1000)
print("Warning: PolygonROI is deprecated. Use PolyLineROI instead.")
def listPoints(self):
return [p['item'].pos() for p in self.handles]
#def movePoint(self, *args, **kargs):
#ROI.movePoint(self, *args, **kargs)
#self.prepareGeometryChange()
#for h in self.handles:
#h['pos'] = h['item'].pos()
def paint(self, p, *args):
p.setRenderHint(QtGui.QPainter.Antialiasing)
p.setPen(self.currentPen)
@ -1877,7 +1746,6 @@ class PolygonROI(ROI):
sc['pos'] = Point(self.state['pos'])
sc['size'] = Point(self.state['size'])
sc['angle'] = self.state['angle']
#sc['handles'] = self.handles
return sc
@ -2097,13 +1965,16 @@ class LineSegmentROI(ROI):
pos = [0,0]
ROI.__init__(self, pos, [1,1], **args)
#ROI.__init__(self, positions[0])
if len(positions) > 2:
raise Exception("LineSegmentROI must be defined by exactly 2 positions. For more points, use PolyLineROI.")
self.endpoints = []
for i, p in enumerate(positions):
self.endpoints.append(self.addFreeHandle(p, item=handles[i]))
self.addFreeHandle(p, item=handles[i])
@property
def endpoints(self):
# must not be cached because self.handles may change.
return [h['item'] for h in self.handles]
def listPoints(self):
return [p['item'].pos() for p in self.handles]
@ -2150,7 +2021,6 @@ class LineSegmentROI(ROI):
See ROI.getArrayRegion() for a description of the arguments.
"""
imgPts = [self.mapToItem(img, h.pos()) for h in self.endpoints]
rgns = []
coords = []
@ -2193,7 +2063,6 @@ class CrosshairROI(ROI):
def __init__(self, pos=None, size=None, **kargs):
if size == None:
#size = [100e-6,100e-6]
size=[1,1]
if pos == None:
pos = [0,0]

View File

@ -209,14 +209,22 @@ def test_PolyLineROI():
mouseClick(plt, pt, QtCore.Qt.LeftButton)
assertImageApproved(plt, 'roi/polylineroi/'+name+'_click_segment', 'Click mouse over segment.')
# drag new handle
mouseMove(plt, pt+pg.Point(10, -10)) # pg bug: have to move the mouse off/on again to register hover
mouseDrag(plt, pt, pt + pg.Point(10, -10), QtCore.Qt.LeftButton)
assertImageApproved(plt, 'roi/polylineroi/'+name+'_drag_new_handle', 'Drag mouse over created handle.')
# clear all points
r.clearPoints()
assertImageApproved(plt, 'roi/polylineroi/'+name+'_clear', 'All points cleared.')
assert len(r.getState()['points']) == 0
# call setPoints
r.setPoints(initState['points'])
assertImageApproved(plt, 'roi/polylineroi/'+name+'_setpoints', 'Reset points to initial state.')
assert len(r.getState()['points']) == 3
# call setState
r.setState(initState)
assertImageApproved(plt, 'roi/polylineroi/'+name+'_setstate', 'Reset ROI to initial state.')
assert len(r.getState()['points']) == 3

View File

@ -10,11 +10,13 @@ Procedure for unit-testing with images:
$ PYQTGRAPH_AUDIT=1 python pyqtgraph/graphicsItems/tests/test_PlotCurveItem.py
Any failing tests will
display the test results, standard image, and the differences between the
two. If the test result is bad, then press (f)ail. If the test result is
good, then press (p)ass and the new image will be saved to the test-data
directory.
Any failing tests will display the test results, standard image, and the
differences between the two. If the test result is bad, then press (f)ail.
If the test result is good, then press (p)ass and the new image will be
saved to the test-data directory.
To check all test results regardless of whether the test failed, set the
environment variable PYQTGRAPH_AUDIT_ALL=1.
3. After adding or changing test images, create a new commit:
@ -42,7 +44,7 @@ Procedure for unit-testing with images:
# pyqtgraph should be tested against. When adding or changing test images,
# create and push a new tag and update this variable. To test locally, begin
# by creating the tag in your ~/.pyqtgraph/test-data repository.
testDataTag = 'test-data-6'
testDataTag = 'test-data-7'
import time
@ -162,6 +164,8 @@ def assertImageApproved(image, standardFile, message=None, **kwargs):
# If the test image does not match, then we go to audit if requested.
try:
if stdImage is None:
raise Exception("No reference image saved for this test.")
if image.shape[2] != stdImage.shape[2]:
raise Exception("Test result has different channel count than standard image"
"(%d vs %d)" % (image.shape[2], stdImage.shape[2]))