Show function values as tooltip when holding Ctrl

gui/pipeline_view.py: - QGraphicsModuleItem.__init__: call setAcceptHoverEvents New attribute function_overview - QGraphicsModuleItem.updateFunctionPorts: Create a html tooltip showing function values - QGraphicsModuleItem.hoverEnterEvent: *new Show function_overview as tooltip Note that this overwrites errorTrace tooltips
VisTrails · Oct 1, 2014 · 0171f96 · 0171f96
1 parent 756f8e1
commit 0171f96
Showing 1 changed file with 27 additions and 0 deletions.
diff --git a/vistrails/gui/pipeline_view.py b/vistrails/gui/pipeline_view.py
@@ -1037,6 +1037,7 @@ def __init__(self, parent=None, scene=None):
         else:
             self.setFlags(QtGui.QGraphicsItem.ItemIsSelectable |
                           QtGui.QGraphicsItem.ItemIsMovable)
+        self.setAcceptHoverEvents(True)
         self.setZValue(0)
         self.labelFont = CurrentTheme.MODULE_FONT
         self.labelFontMetric = CurrentTheme.MODULE_FONT_METRIC
@@ -1069,6 +1070,7 @@ def __init__(self, parent=None, scene=None):
         self.progressBrush = CurrentTheme.SUCCESS_MODULE_BRUSH
         self.connectionItems = {}
         self._cur_function_names = set()
+        self.function_overview = 'No functions set'
         self.handlePositionChanges = True
 
     def moduleHasChanged(self, core_module):
@@ -1165,6 +1167,24 @@ def update_function_ports(self, core_module=None):
                 if item is not None:
                     item.connect()
 
+        if core_module.functions:
+            function_overview = []
+            for f in core_module.functions:
+                if len(f.params)>1:
+                    params = ', '.join([p.strValue for p in f.params])
+                elif len(f.params)>0:
+                    params = f.params[0].strValue
+                else:
+                    params = ''
+                if len(params)>100:
+                    params = params[:97] + '...'
+                function_template = "<b>%s(</b>%s<b>)</b>"
+                function_overview.append(function_template % (f.name, params))
+                template = '<html>%s</html>'
+            self.function_overview = template % '<br/>'.join(function_overview)
+        else:
+            self.function_overview = 'No functions set'
+
         self.module = core_module
 
     def setProgress(self, progress):
@@ -1762,6 +1782,13 @@ def mouseReleaseEvent(self, event):
         if not self.controller.changed and self.controller.has_move_actions():
             self.controller.set_changed(True)
 
+    def hoverEnterEvent(self, event):
+        if QtGui.QApplication.keyboardModifiers() == QtCore.Qt.ControlModifier:
+            QtGui.QToolTip.hideText()
+            QtGui.QToolTip.showText(event.screenPos(), self.function_overview)
+            self.setToolTip(self.function_overview)
+        return QtGui.QGraphicsItem.hoverEnterEvent(self, event)
+
     def itemChange(self, change, value):
         """ itemChange(change: GraphicsItemChange, value: value) -> value
         Capture move event to also move the connections.  Also unselect any