add app_utils for motion_assert, contextMenu og GraphItem, further fixes

pyqtUsrObj.py

@@ -20,6 +20,8 @@ from pyqtgraph.Qt import QtCore, QtGui
 import numpy as np
 from PyQt5.QtGui import QPolygon,QPolygonF
 from PyQt5.QtCore import Qt,QPointF,QLineF
+from PyQt5.QtWidgets import QMenu
+
 
 def itr2str(itr):
   return '('+', '.join(tuple(map(lambda x:f'{x:.6g}', itr)))+')'
@@ -145,10 +147,28 @@ class Marker(pg.ROI):
     p.setTransform(tr)
     return ofx,ofy
 
-
-class Fiducial(pg.ROI):
-  def __init__(self, pos, size, z:float, **kargs):
+class UsrROI(pg.ROI):
+  def __init__(self, pos, size, **kargs):
     pg.ROI.__init__(self, pos, size, **kargs)
+
+  def cb_toggle_movable(self):
+    self.translatable=not self.translatable
+
+  def contextMenuEvent(self, event):
+    #pg.ROI.contextMenuEvent(self,event)
+    _log.debug('ContextMenu')
+    menu = QMenu("ctx")
+    act=menu.addAction('locked')
+    act.setCheckable(True)
+    act.setChecked(not self.translatable)
+    act.triggered.connect(self.cb_toggle_movable)
+    #menu.addAction('center in view')
+    #menu.addAction('delete')
+    menu.exec(event.screenPos())
+
+class Fiducial(UsrROI):
+  def __init__(self, pos, size, z:float, **kargs):
+    UsrROI.__init__(self, pos, size, **kargs)
     self._z=z
 
   def paint(self, p, *args):
@@ -195,7 +215,7 @@ class Fiducial(pg.ROI):
     return jsn
 
 
-class Grid(pg.ROI):
+class Grid(UsrROI):
   '''a grid'''
 
   def __init__( self, pos=(0,0), size=(30,20), cnt=(6,4), fiducialSize=.2, **kargs):
@@ -271,7 +291,7 @@ class Grid(pg.ROI):
     return pts
 
 
-class Path(pg.ROI):
+class Path(UsrROI):
   '''
   a path object with fiducials
   path=np.array(n,2) of path points
@@ -347,7 +367,7 @@ class Path(pg.ROI):
     }
     return jsn
 
-class FixTargetFrame(pg.ROI):
+class FixTargetFrame(UsrROI):
   '''fixed target frame'''
   tpl={
     'test':{
@@ -664,7 +684,7 @@ if __name__=='__main__':
       pass
     else:
       obj_info(o)
-      print(o.state)
+      #print(o.state)
 
 
   ## Create image to display
@@ -689,7 +709,7 @@ if __name__=='__main__':
   w=pg.GraphicsLayoutWidget(show=True, size=(1000, 800), border=True)
   w.setWindowTitle('pyqtgraph example: ROI Examples')
 
-  vb=w.addViewBox(row=1, col=0, lockAspect=True,invertY=False)
+  vb=w.addViewBox(row=1, col=0, lockAspect=True,invertY=False,enableMenu=False)
   vb.enableAutoRange(enable=False)
   try:
     g=pg.GridItem(pen=(0, 255, 0), textPen=(0, 255, 0))  # green grid and labels
@@ -748,9 +768,13 @@ if __name__=='__main__':
   vi=FixTargetFrame((400,-200),(400,400),tpl='12.5x12.5')
   vb.addItem(vi)
 
-  vi=Fiducial((0,200),(40,40),3)
+  vi=Fiducial((0,200),(40,40),3,movable=False,removable=True)
   vb.addItem(vi)
 
+  vi=pg.PolyLineROI([(22, -19), (40, -30), (23, -10), (22, -19)], closed=True)
+  vb.addItem(vi)
+
+
   viRoi=pg.ROI([-200, -200], [100, 80],movable=True, rotatable=True, resizable=True)
 
   viRoi.addFreeHandle(pos=[.7, .5], axes=None, item=None, name=None, index=None) # rechteck , frei beweglich ??? verschwinden anch bewegung