Add functionality to export plots to clipboard.

Fix #2701

2 files changed, 61 insertions, 15 deletions

diff --git a/calculate.py b/calculate.py
index 79f362f..196974f 100644
--- a/calculate.py
+++ b/calculate.py
@@ -416,7 +416,6 @@ class Calculate(ShareableActivity):
             tree: the parsed tree, this will be used to set the label variable
             so that the equation can be used symbolicaly.
             """
-
         if eq.equation is not None and len(eq.equation) > 0:
             if prepend:
                 self.old_eqs.insert(0, eq)
@@ -733,12 +732,17 @@ class Calculate(ShareableActivity):
         self.select_reason = self.SELECT_SELECT
 
     def text_copy(self):
-        str = self.text_entry.get_text()
-        sel = self.text_entry.get_selection_bounds()
+        if self.layout.graph_selected != False:
+            print "\n\nGraph Copy!\n\n"
+            self.clipboard.set_image(self.layout.graph_selected.child.get_pixbuf())
+            self.layout.toggle_select_graph(self.layout.graph_selected)
+        else:
+            str = self.text_entry.get_text()
+            sel = self.text_entry.get_selection_bounds()
  #       _logger.info('text_copy, sel: %r, str: %s', sel, str)
-        if len(sel) == 2:
-            (start, end) = sel
-            self.clipboard.set_text(str[start:end])
+            if len(sel) == 2:
+                (start, end) = sel
+                self.clipboard.set_text(str[start:end])
 
     def get_clipboard_text(self):
         text = self.clipboard.wait_for_text()
diff --git a/layout.py b/layout.py
index 5a77357..c6377fb 100644
--- a/layout.py
+++ b/layout.py
@@ -37,6 +37,7 @@ class CalcLayout:
         self._showing_history = True
         self._showing_all_history = True
         self._var_textviews = {}
+        self.graph_selected = False
 
         self.create_dialog()
 
@@ -295,34 +296,75 @@ class CalcLayout:
         self.variable_vbox.hide()
         self.history_vbox.show()
 
+    def toggle_select_graph(self, widget, host=None):
+        if not self.graph_selected:
+            widget.set_visible_window(True)
+            widget.set_above_child(True)
+            self.graph_selected = widget
+            white = gtk.gdk.color_parse('white')
+            widget.modify_bg(gtk.STATE_NORMAL, white)
+        else:
+            widget.set_visible_window(False)
+            self.graph_selected = False
+
     def add_equation(self, textview, own, prepend=False):
         """Add a gtk.TextView of an equation to the history_vbox."""
 
+        GraphEventBox = None
+        if isinstance(textview, gtk.Image):
+            # Add the image inside the eventBox
+            GraphEventBox = gtk.EventBox()
+            GraphEventBox.add(textview)
+            GraphEventBox.set_visible_window(False)
+            GraphEventBox.connect('button_press_event', self.toggle_select_graph)
+            GraphEventBox.show()
+
         if prepend:
-            self.history_vbox.pack_start(textview, False, True)
-            self.history_vbox.reorder_child(textview, 0)
+            if GraphEventBox:
+                self.history_vbox.pack_start(GraphEventBox, False, True)
+                self.history_vbox.reorder_child(GraphEventBox, 0)
+            else:
+                self.history_vbox.pack_start(textview, False, True)
+                self.history_vbox.reorder_child(textview, 0)
         else:
-            self.history_vbox.pack_end(textview, False, True)
+            if GraphEventBox:
+                self.history_vbox.pack_end(GraphEventBox, False, True)
+            else:
+                self.history_vbox.pack_end(textview, False, True)
 
         if own:
-            self._own_equations.append(textview)
-            textview.show()
+            if GraphEventBox:
+                self._own_equations.append(GraphEventBox)
+                GraphEventBox.child.show()
+            else:
+                self._own_equations.append(textview)
+                textview.show()
         else:
-            self._other_equations.append(textview)
             if self._showing_all_history:
-                textview.show()
+                if GraphEventBox:
+                    self._other_equations.append(GraphEventBox)
+                    GraphEventBox.child.show()
+                else:
+                    self._other_equations.append(textview)
+                    textview.show()
 
     def show_all_history(self):
         """Show both owned and other equations."""
         self._showing_all_history = True
         for key in self._other_equations:
-            key.show()
+            if isinstance(key, gtk.EventBox):
+                key.child.show()
+            else:
+                key.show()
 
     def show_own_history(self):
         """Show only owned equations."""
         self._showing_all_history = False
         for key in self._other_equations:
-            key.hide()
+            if isinstance(key, gtk.EventBox):
+                key.child.hide()
+            else:
+                key.hide()
 
     def add_variable(self, varname, textview):
         """Add a gtk.TextView of a variable to the variable_vbox."""