Added clone function for better copying of AssEntry and derived classes

Originally committed to SVN as r184.

core/ass_dialogue.cpp

@@ -727,6 +727,35 @@ bool AssDialogue::CollidesWith(AssDialogue *target) {
 }
 
 
+/////////
+// Clone
+AssEntry *AssDialogue::Clone() {
+	// Create clone
+	AssDialogue *final = new AssDialogue();
+
+	// Copy data
+	final->group = group;
+	final->StartMS = StartMS;
+	final->Valid = Valid;
+	final->Actor = Actor;
+	final->Comment = Comment;
+	final->Effect = Effect;
+	final->End = End;
+	final->Layer = Layer;
+	final->MarginL = MarginL;
+	final->MarginR = MarginR;
+	final->MarginV = MarginV;
+	final->Start = Start;
+	final->StartMS = final->StartMS;
+	final->Style = Style;
+	final->Text = Text;
+	final->SetEntryData(GetEntryData());
+
+	// Return
+	return final;
+}
+
+
 ////////////////////// AssDialogueBlock //////////////////////
 ///////////////
 // Constructor

core/ass_dialogue.h

@@ -200,6 +200,8 @@ public:
 	bool CollidesWith(AssDialogue *target);					// Checks if two lines collide
 	void ClearBlocks();
 
+	AssEntry *Clone();
+
 	AssDialogue();
 	AssDialogue(wxString data,bool IsSSA=false);
 	~AssDialogue();

core/ass_entry.cpp

@@ -100,3 +100,20 @@ wxString AssEntry::GetSSAText() {
 	}
 	return data;
 }
+
+
+/////////
+// Clone
+AssEntry *AssEntry::Clone() {
+	// Create clone
+	AssEntry *final = new AssEntry();
+
+	// Copy data
+	final->data = data;
+	final->group = group;
+	final->StartMS = StartMS;
+	final->Valid = Valid;
+
+	// Return
+	return final;
+}

core/ass_entry.h

@@ -72,6 +72,8 @@ public:
 	AssEntry(wxString data);
 	virtual ~AssEntry();
 
+	virtual AssEntry *Clone();
+
 	virtual ASS_EntryType GetType() { return ENTRY_BASE; }
 	virtual const wxString GetEntryData() { return data; }
 	virtual void SetEntryData(wxString newData) { if (newData.IsEmpty()) data.Clear(); else data = newData; }

core/ass_file.cpp

@@ -473,7 +473,7 @@ AssFile::AssFile (AssFile &from) {
 	// Copy lines
 	int lasttime = -1;
 	for (list<AssEntry*>::iterator cur=from.Line.begin();cur!=from.Line.end();cur++) {
-		lasttime = AddLine((*cur)->GetEntryData(),(*cur)->group,lasttime,IsSSA);
+		Line.push_back((*cur)->Clone());
 	}
 
 	// Add comments

core/ass_style.cpp

@@ -524,3 +524,42 @@ wxString AssStyle::GetSSAText() {
 
 	return output;
 }
+
+
+/////////
+// Clone
+AssEntry *AssStyle::Clone() {
+	// Create clone
+	AssStyle *final = new AssStyle();
+
+	// Copy data
+	final->group = group;
+	final->StartMS = StartMS;
+	final->Valid = Valid;
+	final->alignment = alignment;
+	final->angle = angle;
+	final->bold = bold;
+	final->borderstyle = borderstyle;
+	final->encoding = encoding;
+	final->font = font;
+	final->fontsize = fontsize;
+	final->italic = italic;
+	final->MarginL = MarginL;
+	final->MarginR = MarginR;
+	final->MarginV = MarginV;
+	final->name = name;
+	final->outline = outline;
+	final->outline_w = outline_w;
+	final->primary = primary;
+	final->scalex = scalex;
+	final->scaley = scaley;
+	final->secondary = secondary;
+	final->shadow = shadow;
+	final->spacing = spacing;
+	final->strikeout = strikeout;
+	final->underline = underline;
+	final->SetEntryData(GetEntryData());
+
+	// Return
+	return final;
+}

core/ass_style.h

@@ -102,6 +102,8 @@ public:
 	wxString GetMarginString(int which);					// Returns the margin value as a string (1 = left, 2 = right, 3 = vertical)
 	void SetMarginString(const wxString value,int which);	// Sets margin value from a string (1 = left, 2 = right, 3 = vertical)
 
+	AssEntry *Clone();
+
 	AssStyle();
 	AssStyle(wxString data,bool IsSSA=false);
 	~AssStyle();