ENH: new ortho/lightbox option to adjust location cursor width

fsleyes/displaycontext/canvasopts.py

@@ -71,6 +71,9 @@ class SliceCanvasOpts(props.HasProperties):
     voxel).
     """
 
+    cursorWidth = props.Real(minval=0.1, default=1, maxval=10)
+    """Width in pixels (approx) of the location cursor. """
+
 
     zax = props.Choice((0, 1, 2),
                        alternates=[['x', 'X'], ['y', 'Y'], ['z', 'Z']],

fsleyes/displaycontext/sceneopts.py

@@ -33,6 +33,7 @@ class SceneOpts(props.HasProperties):
 
 
     showCursor      = copy.copy(canvasopts.SliceCanvasOpts.showCursor)
+    cursorWidth     = copy.copy(canvasopts.SliceCanvasOpts.cursorWidth)
     zoom            = copy.copy(canvasopts.SliceCanvasOpts.zoom)
     bgColour        = copy.copy(canvasopts.SliceCanvasOpts.bgColour)
     cursorColour    = copy.copy(canvasopts.SliceCanvasOpts.cursorColour)

fsleyes/gl/lightboxcanvas.py

@@ -740,8 +740,8 @@ class LightBoxCanvas(slicecanvas.SliceCanvas):
         annot = self.getAnnotations()
 
         kwargs = {
-            'colour' : opts.cursorColour,
-            'width'  : 1
+            'colour'     : opts.cursorColour,
+            'lineWidth'  : opts.cursorWidth
         }
 
         annot.line(*xverts[0], *xverts[1], **kwargs)

fsleyes/gl/slicecanvas.py

@@ -156,6 +156,7 @@ class SliceCanvas:
         opts.addListener('displayBounds', self.name, self.Refresh)
         opts.addListener('bgColour',      self.name, self.Refresh)
         opts.addListener('cursorColour',  self.name, self.Refresh)
+        opts.addListener('cursorWidth',   self.name, self.Refresh)
         opts.addListener('showCursor',    self.name, self.Refresh)
         opts.addListener('cursorGap',     self.name, self.Refresh)
         opts.addListener('invertX',       self.name, self.Refresh)
@@ -1160,8 +1161,8 @@ class SliceCanvas:
             lines.append((x,     yhigh, x,    ymax))
 
         kwargs = {
-            'colour' : copts.cursorColour,
-            'width'  : 1
+            'colour'     : copts.cursorColour,
+            'lineWidth'  : copts.cursorWidth
         }
 
         for line in lines:

fsleyes/views/lightboxpanel.py

@@ -104,6 +104,7 @@ class LightBoxPanel(canvaspanel.CanvasPanel):
         lbopts.bindProps('bgColour',        sceneOpts)
         lbopts.bindProps('cursorColour',    sceneOpts)
         lbopts.bindProps('showCursor',      sceneOpts)
+        lbopts.bindProps('cursorWidth',     sceneOpts)
         lbopts.bindProps('showGridLines',   sceneOpts)
         lbopts.bindProps('highlightSlice',  sceneOpts)
         lbopts.bindProps('highDpi',         sceneOpts)

fsleyes/views/orthopanel.py

@@ -258,6 +258,10 @@ class OrthoPanel(canvaspanel.CanvasPanel):
         yopts.bindProps('cursorGap',    sceneOpts)
         zopts.bindProps('cursorGap',    sceneOpts)
 
+        xopts.bindProps('cursorWidth',  sceneOpts)
+        yopts.bindProps('cursorWidth',  sceneOpts)
+        zopts.bindProps('cursorWidth',  sceneOpts)
+
         xopts.bindProps('bgColour',     sceneOpts)
         yopts.bindProps('bgColour',     sceneOpts)
         zopts.bindProps('bgColour',     sceneOpts)