Make data dictionary follow cursor

When user moves cursor on a new word, and this work is a variable,
select it in the data dictionary, to allow easy retrieval of the
corresponding type

opengeode/TextInteraction.py

@@ -7,7 +7,7 @@
         - Syntax highlighing
         - Automatic placement
 
-    Copyright (c) 2012-2014 European Space Agency
+    Copyright (c) 2012-2019 European Space Agency
 
     Designed and implemented by Maxime Perrotin for the TASTE project
 
@@ -17,7 +17,7 @@
 import string
 import logging
 
-from PySide.QtCore import Qt, QRegExp, Slot
+from PySide.QtCore import Qt, QRegExp, Slot, Signal
 
 from PySide.QtGui import(QGraphicsTextItem, QGraphicsProxyWidget, QListWidget,
                          QStringListModel, QCompleter, QListWidgetItem, QFont,
@@ -139,6 +139,7 @@ class EditableText(QGraphicsTextItem, object):
     '''
     default_cursor = Qt.IBeamCursor
     hasParent = False
+    word_under_cursor = Signal(str)
 
     def __init__(self, parent, text='...', hyperlink=None):
         super(EditableText, self).__init__(parent)
@@ -162,6 +163,7 @@ class EditableText(QGraphicsTextItem, object):
         self.highlighter = Highlighter(
                 self.document(), parent.blackbold, parent.redbold)
         self.completion_prefix = ''
+        self.old_word = ''  # needed to detect change of word under cursor
         #self.set_textbox_position()
         self.set_text_alignment()
         # Increase the Z value of the text area so that the autocompleter
@@ -294,6 +296,11 @@ class EditableText(QGraphicsTextItem, object):
         text_cursor.select(QTextCursor.WordUnderCursor)
         self.completion_prefix = text_cursor.selectedText()
 
+        # "self.completion_prefix" is the complete word under the cursor
+        if self.completion_prefix != self.old_word:
+            self.word_under_cursor.emit(self.completion_prefix)
+            self.old_word = self.completion_prefix
+
         self.context_completion_list(force=(event.key()==Qt.Key_F8))
 
         completion_count = self.completer.set_completion_prefix(

opengeode/genericSymbols.py

@@ -41,7 +41,7 @@
     For a complete example, look at the "sdlSymbols.py" module, that
     provide symbol definitions that correspond to an SDL editor.
 
-    Copyright (c) 2012-2013 European Space Agency
+    Copyright (c) 2012-2019 European Space Agency
 
     Designed and implemented by Maxime Perrotin for the TASTE project
 
@@ -82,6 +82,7 @@ class Symbol(QObject, QGraphicsPathItem, object):
     # Emit a signal when the symbol moved - can be caught by connectors to
     # adjust connection points if the symbol is not the connection parent
     moved = Signal(float, float)
+    # when editing text, signal is emitted when the word under cursor changes
     # Symbols of a given type share a text-autocompletion list:
     completion_list = set()
     # Flexible lists of symbol types that can be set as child of this symbol

opengeode/opengeode.py

@@ -376,6 +376,7 @@ class SDL_Scene(QtGui.QGraphicsScene, object):
     # Signal to be emitted when the scene is left (e.g. UP button)
     scene_left = QtCore.Signal()
     context_change = QtCore.Signal()
+    word_under_cursor = QtCore.Signal(str)
 
     def __init__(self, context='process', readonly=False):
         ''' Create a Scene for a given context:
@@ -724,6 +725,8 @@ class SDL_Scene(QtGui.QGraphicsScene, object):
             #symbol.set_textbox_position()
             symbol.try_resize()
             symbol.set_text_alignment()
+            # connect the signal that is emitted when text edit changes word
+            symbol.word_under_cursor.connect(self.word_under_cursor.emit)
         for symbol in self.visible_symb:
             symbol.update_connections()
 
@@ -1211,6 +1214,7 @@ class SDL_Scene(QtGui.QGraphicsScene, object):
         subscene.messages_window = self.messages_window
         subscene.parent_scene = parent
         subscene.context_change.connect(self.context_change.emit)
+        subscene.word_under_cursor.connect(self.word_under_cursor.emit)
         return subscene
 
 
@@ -2487,6 +2491,7 @@ class OG_MainWindow(QtGui.QMainWindow, object):
             scene.undo_stack.indexChanged.connect(lambda idx :
                     self.view.change_cleanliness(idx))
             scene.context_change.connect(self.update_datadict_window)
+            scene.word_under_cursor.connect(self.select_in_datadict_window)
 
     def start(self, options):
         ''' Initializes all objects to start the application '''
@@ -2732,6 +2737,20 @@ class OG_MainWindow(QtGui.QMainWindow, object):
         item_constants.setExpanded(True)
         self.datadict.resizeColumnToContents(0)
 
+    def select_in_datadict_window(self, str):
+        ''' This function is called upon reception of a signal emitted by
+        text boxes when the current word under the cursor has changed. This
+        function then looks in the data dictionary and if the text is found,
+        the relevant row is selected. This allows user to easily retrieve
+        the type of a variable for instance '''
+        (in_sig, out_sig, states, labels,
+         dcl, timers) = [self.datadict.topLevelItem(i) for i in range(2, 8)]
+        for idx in xrange(dcl.childCount()):
+            child = dcl.child(idx)
+            if child.text(0).lower() == str.lower():
+                child.treeWidget().setCurrentItem(child)
+                child.treeWidget().scrollToItem(child)
+
 
     def update_datadict_window(self):
         ''' Update the tree in the data dictionary based on the AST '''