Reverted CodeDocument::replaceAllContent, and added an applyChanges() method.

extras/Introjucer/Source/Code Editor/jucer_SourceCodeEditor.cpp

@@ -62,7 +62,7 @@ void SourceCodeDocument::reloadInternal()
 {
     jassert (codeDoc != nullptr);
     modDetector.updateHash();
-    codeDoc->replaceAllContent (modDetector.getFile().loadFileAsString());
+    codeDoc->applyChanges (modDetector.getFile().loadFileAsString());
     codeDoc->setSavePoint();
 }
 

modules/juce_gui_extra/code_editor/juce_CodeDocument.cpp

@@ -574,7 +574,7 @@ void CodeDocument::replaceSection (const int start, const int end, const String&
     deleteSection (start + newTextLen, end + newTextLen);
 }
 
-void CodeDocument::replaceAllContent (const String& newContent)
+void CodeDocument::applyChanges (const String& newContent)
 {
     TextDiff diff (getAllContent(), newContent);
 
@@ -589,6 +589,12 @@ void CodeDocument::replaceAllContent (const String& newContent)
     }
 }
 
+void CodeDocument::replaceAllContent (const String& newContent)
+{
+    remove (0, getNumCharacters(), true);
+    insert (newContent, 0, true);
+}
+
 bool CodeDocument::loadFromStream (InputStream& stream)
 {
     remove (0, getNumCharacters(), false);

modules/juce_gui_extra/code_editor/juce_CodeDocument.h

@@ -234,6 +234,11 @@ public:
     */
     void replaceAllContent (const String& newContent);
 
+    /** Analyses the changes between the current content and some new text, and applies
+        those changes.
+    */
+    void applyChanges (const String& newContent);
+
     /** Replaces the editor's contents with the contents of a stream.
         This will also reset the undo history and save point marker.
     */