Added a method for concatenating AttributedStrings.

modules/juce_graphics/fonts/juce_AttributedString.cpp

@@ -40,6 +40,13 @@ AttributedString::Attribute::Attribute (const Attribute& other)
 {
 }
 
+AttributedString::Attribute::Attribute (const Attribute& other, const int offset)
+    : range (other.range + offset),
+      font (other.font.createCopy()),
+      colour (other.colour.createCopy())
+{
+}
+
 AttributedString::Attribute::~Attribute() {}
 
 //==============================================================================
@@ -149,6 +156,15 @@ void AttributedString::append (const String& textToAppend, const Font& font, con
     setColour (Range<int> (oldLength, oldLength + newLength), colour);
 }
 
+void AttributedString::append (const AttributedString& other)
+{
+    const int originalLength = text.length();
+    text += other.text;
+
+    for (int i = 0; i < other.attributes.size(); ++i)
+        attributes.add (new Attribute (*other.attributes.getUnchecked(i), originalLength));
+}
+
 void AttributedString::clear()
 {
     text = String::empty;

modules/juce_graphics/fonts/juce_AttributedString.h

@@ -75,6 +75,12 @@ public:
     /** Appends some text, with a specified font and colour. */
     void append (const String& textToAppend, const Font& font, const Colour& colour);
 
+    /** Appends another AttributedString to this one.
+        Note that this will only append the text, fonts, and colours - it won't copy any
+        other properties such as justification, line-spacing, etc from the other object.
+    */
+    void append (const AttributedString& other);
+
     /** Resets the string, clearing all text and attributes.
         Note that this won't affect global settings like the justification type,
         word-wrap mode, etc.
@@ -171,6 +177,8 @@ public:
         ScopedPointer<Font> font;
         ScopedPointer<Colour> colour;
 
+        friend class AttributedString;
+        Attribute (const Attribute&, int);
         Attribute& operator= (const Attribute&);
 
         JUCE_LEAK_DETECTOR (Attribute);