- Visualize whitespace in editors.

git-svn-id: https://openmodelica.org/svn/OpenModelica/trunk@25575 f25d12d1-65f4-0310-ae8a-bbce733d8d8e

OMEdit/OMEditGUI/Editors/BaseEditor.cpp

@@ -476,6 +476,11 @@ void BaseEditor::createActions()
   mpGotoLineNumberAction->setStatusTip(tr("Shows the Go to Line Number window"));
   mpGotoLineNumberAction->setShortcut(QKeySequence("Ctrl+l"));
   connect(mpGotoLineNumberAction, SIGNAL(triggered()), SLOT(showGotoLineNumberDialog()));
+  // ShowTabsAndSpaces action
+  mpShowTabsAndSpacesAction = new QAction(tr("Show Tabs and Spaces"), this);
+  mpShowTabsAndSpacesAction->setStatusTip(tr("Shows the Tabs and Spaces"));
+  mpShowTabsAndSpacesAction->setCheckable(true);
+  connect(mpShowTabsAndSpacesAction, SIGNAL(triggered(bool)), SLOT(showTabsAndSpaces(bool)));
   /* Toggle breakpoint action */
   mpToggleBreakpointAction = new QAction(tr("Toggle Breakpoint"), this);
   connect(mpToggleBreakpointAction, SIGNAL(triggered()), SLOT(toggleBreakpoint()));
@@ -497,6 +502,8 @@ QMenu* BaseEditor::createStandardContextMenu()
   pMenu->addAction(mpFindReplaceAction);
   pMenu->addAction(mpClearFindReplaceTextsAction);
   pMenu->addAction(mpGotoLineNumberAction);
+  pMenu->addSeparator();
+  pMenu->addAction(mpShowTabsAndSpacesAction);
   return pMenu;
 }
 
@@ -575,6 +582,22 @@ void BaseEditor::showGotoLineNumberDialog()
   pGotoLineWidget->exec();
 }
 
+/*!
+ * \brief BaseEditor::showTabsAndSpaces
+ * Shows/hide tabs and spaces for the editor.
+ * \param On
+ */
+void BaseEditor::showTabsAndSpaces(bool On)
+{
+  QTextOption textOption = mpPlainTextEdit->document()->defaultTextOption();
+  if (On) {
+    textOption.setFlags(textOption.flags() | QTextOption::ShowTabsAndSpaces);
+  } else {
+    textOption.setFlags(textOption.flags() & ~QTextOption::ShowTabsAndSpaces);
+  }
+  mpPlainTextEdit->document()->setDefaultTextOption(textOption);
+}
+
 /**
  * Slot activated when set breakpoint is seleteted from line number area context menu.
  */

OMEdit/OMEditGUI/Editors/BaseEditor.h

@@ -97,6 +97,7 @@ class BaseEditor : public QWidget
   QAction *mpFindReplaceAction;
   QAction *mpClearFindReplaceTextsAction;
   QAction *mpGotoLineNumberAction;
+  QAction *mpShowTabsAndSpacesAction;
   QAction *mpToggleBreakpointAction;
   QAction *mpToggleCommentSelectionAction;
   DocumentMarker *mpDocumentMarker;
@@ -114,6 +115,7 @@ public slots:
   void showFindReplaceWidget();
   void clearFindReplaceTexts();
   void showGotoLineNumberDialog();
+  void showTabsAndSpaces(bool On);
   void toggleBreakpoint();
   virtual void toggleCommentSelection() = 0;
   void indentOrUnindent(bool doIndent);