Base format writer class implemented

Originally committed to SVN as r185.

core/ass_file.cpp

@@ -146,12 +146,13 @@ void AssFile::Save(wxString _filename,bool setfilename,bool addToRecent,const wx
 	}
 	wxString extension = _filename.substr(i+1);
 	extension.Lower();
+	bool success = false;
 
 	// ASS
 	if (extension == _T("ass")) {
-		SaveASS(_filename,setfilename,encoding);
+		SaveASS(_filename,encoding);
 		if (addToRecent) AddToRecent(_filename);
-		return;
+		success = true;
 	}
 
 	// SSA
@@ -159,7 +160,7 @@ void AssFile::Save(wxString _filename,bool setfilename,bool addToRecent,const wx
 		AssFile SSA(*this);
 		SSA.SaveSSA(_filename,encoding);
 		if (addToRecent) AddToRecent(_filename);
-		return;
+		success = true;
 	}
 
 	// SRT
@@ -167,11 +168,18 @@ void AssFile::Save(wxString _filename,bool setfilename,bool addToRecent,const wx
 		AssFile SRT(*this);
 		SRT.SaveSRT(_filename,encoding);
 		if (addToRecent) AddToRecent(_filename);
-		return;
+		success = true;
+	}
+
+	// Done
+	if (setfilename) {
+		Modified = false;
+		filename = _filename;
+		IsASS = true;
 	}
 
 	// Unknown
-	throw _T("Unknown file type");
+	if (!success) throw _T("Unknown file type");
 }
 
 
@@ -186,7 +194,7 @@ void AssFile::Export(wxString _filename) {
 
 /////////////////////
 // Saves ASS to disk
-void AssFile::SaveASS (wxString _filename,bool setfilename,const wxString encoding) {
+void AssFile::SaveASS (wxString _filename,const wxString encoding) {
 	// Open file
 	TextFileWriter file(_filename,encoding);
 
@@ -195,13 +203,6 @@ void AssFile::SaveASS (wxString _filename,bool setfilename,const wxString encodi
 	for (list<AssEntry*>::iterator cur=Line.begin();cur!=Line.end();cur++) {
 		file.WriteLineToFile((*cur)->GetEntryData());
 	}
-
-	// Done
-	if (setfilename) {
-		Modified = false;
-		filename = _filename;
-		IsASS = true;
-	}
 }
 
 

core/ass_file.h

@@ -68,7 +68,7 @@ private:
 	static void StackClear();
 
 	// I/O operations
-	void SaveASS(const wxString file,bool setfilename,const wxString encoding=_T(""));
+	void SaveASS(const wxString file,const wxString encoding=_T(""));
 	void SaveSSA(const wxString file,const wxString encoding=_T(""));
 	void SaveSRT(const wxString file,const wxString encoding=_T(""));
 

core/subtitle_format_writer.cpp

@@ -0,0 +1,138 @@
+// Copyright (c) 2006, Rodrigo Braz Monteiro
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//   * Redistributions of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//   * Redistributions in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//   * Neither the name of the Aegisub Group nor the names of its contributors
+//     may be used to endorse or promote products derived from this software
+//     without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// -----------------------------------------------------------------------------
+//
+// AEGISUB
+//
+// Website: http://aegisub.cellosoft.com
+// Contact: mailto:zeratul@cellosoft.com
+//
+
+
+///////////
+// Headers
+#include "subtitle_format_writer.h"
+#include "subtitle_format_ass.h"
+#include "subtitle_format_srt.h"
+#include "subtitle_format_txt.h"
+#include "ass_file.h"
+
+
+///////////////
+// Constructor
+SubtitleFormatWriter::SubtitleFormatWriter() {
+	Line = NULL;
+	Register();
+}
+
+
+//////////////
+// Destructor
+SubtitleFormatWriter::~SubtitleFormatWriter() {
+	Remove();
+}
+
+
+//////////////
+// Set target
+void SubtitleFormatWriter::SetTarget(AssFile *file) {
+	if (!file) Line = NULL;
+	else Line = &file->Line;
+	assFile = file;
+}
+
+
+////////
+// List
+std::list<SubtitleFormatWriter*> SubtitleFormatWriter::writers;
+bool SubtitleFormatWriter::loaded = false;
+
+
+/////////////////////////////
+// Get an appropriate writer
+SubtitleFormatWriter *SubtitleFormatWriter::GetWriter(wxString filename) {
+	LoadWriters();
+	std::list<SubtitleFormatWriter*>::iterator cur;
+	SubtitleFormatWriter *writer;
+	for (cur=writers.begin();cur!=writers.end();cur++) {
+		writer = *cur;
+		if (writer->CanWriteFile(filename)) return writer;
+	}
+	return NULL;
+}
+
+
+////////////
+// Register
+void SubtitleFormatWriter::Register() {
+	std::list<SubtitleFormatWriter*>::iterator cur;
+	for (cur=writers.begin();cur!=writers.end();cur++) {
+		if (*cur == this) return;
+	}
+	writers.push_back(this);
+}
+
+
+//////////
+// Remove
+void SubtitleFormatWriter::Remove() {
+	std::list<SubtitleFormatWriter*>::iterator cur;
+	for (cur=writers.begin();cur!=writers.end();cur++) {
+		if (*cur == this) {
+			writers.erase(cur);
+			return;
+		}
+	}
+}
+
+
+///////////////
+// Add loaders
+void SubtitleFormatWriter::LoadWriters () {
+	if (!loaded) {
+		//new ASSSubtitleFormatWriter();
+		//new SRTSubtitleFormatWriter();
+	}
+	loaded = true;
+}
+
+
+///////////////////
+// Destroy loaders
+void SubtitleFormatWriter::DestroyWriters () {
+	SubtitleFormatWriter *writer;
+	std::list<SubtitleFormatWriter*>::iterator cur,next;
+	for (cur=writers.begin();cur!=writers.end();cur = next) {
+		next = cur;
+		next++;
+		writer = *cur;
+		writers.erase(cur);
+		delete writer;
+	}
+	writers.clear();
+}

core/subtitle_format_writer.h

@@ -0,0 +1,77 @@
+// Copyright (c) 2006, Rodrigo Braz Monteiro
+// All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are met:
+//
+//   * Redistributions of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//   * Redistributions in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other materials provided with the distribution.
+//   * Neither the name of the Aegisub Group nor the names of its contributors
+//     may be used to endorse or promote products derived from this software
+//     without specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+// POSSIBILITY OF SUCH DAMAGE.
+//
+// -----------------------------------------------------------------------------
+//
+// AEGISUB
+//
+// Website: http://aegisub.cellosoft.com
+// Contact: mailto:zeratul@cellosoft.com
+//
+
+
+#pragma once
+
+
+///////////
+// Headers
+#include <wx/wxprec.h>
+#include <list>
+
+
+//////////////
+// Prototypes
+class AssFile;
+class AssEntry;
+
+
+///////////////////
+// Subtitle reader
+class SubtitleFormatWriter {
+private:
+	void Register();
+	void Remove();
+	static std::list<SubtitleFormatWriter*> writers;
+	static bool loaded;
+	AssFile *assFile;
+
+protected:
+	std::list<AssEntry*> *Line;
+
+public:
+	SubtitleFormatWriter();
+	virtual ~SubtitleFormatWriter();
+
+	virtual bool CanWriteFile(wxString filename)=0;
+	virtual void WriteFile(wxString filename,wxString encoding)=0;
+
+	void SetTarget(AssFile *file);
+
+	static SubtitleFormatWriter *GetWriter(wxString filename);
+	static void LoadWriters();
+	static void DestroyWriters();
+};