1 files changed, 122 insertions, 0 deletions
diff --git a/qbuffers.h b/qbuffers.h
new file mode 100644
index 0000000..88e5f8f
--- /dev/null
+++ b/qbuffers.h
@@ -0,0 +1,122 @@
+#ifndef __QBUFFERS_H
+#define __QBUFFERS_H
+
+#include <bsd/sys/queue.h>
+
+#include <glib.h>
+#include <glib/gprintf.h>
+
+#include <Scintilla.h>
+
+#include "sciteco.h"
+#include "undo.h"
+#include "parser.h"
+
+class Buffer {
+	class UndoTokenClose : public UndoToken {
+		Buffer *buffer;
+
+	public:
+		UndoTokenClose(Buffer *_buffer)
+			      : UndoToken(), buffer(_buffer) {}
+
+		void
+		run(void)
+		{
+			buffer->close();
+			delete buffer;
+		}
+	};
+
+public:
+	LIST_ENTRY(Buffer) buffers;
+
+	gchar *filename;
+	gint dot;
+
+private:
+	typedef void document;
+	document *doc;
+
+public:
+	Buffer() : filename(NULL), dot(0)
+	{
+		doc = (document *)editor_msg(SCI_CREATEDOCUMENT);
+	}
+	~Buffer()
+	{
+		editor_msg(SCI_RELEASEDOCUMENT, 0, (sptr_t)doc);
+		g_free(filename);
+	}
+
+	inline void
+	set_filename(const gchar *filename)
+	{
+		g_free(Buffer::filename);
+		Buffer::filename = filename ? g_strdup(filename) : NULL;
+	}
+
+	inline void
+	edit(void)
+	{
+		editor_msg(SCI_SETDOCPOINTER, 0, (sptr_t)doc);
+		editor_msg(SCI_GOTOPOS, dot);
+	}
+	inline void
+	undo_edit(void)
+	{
+		undo.push_msg(SCI_GOTOPOS, dot);
+		undo.push_msg(SCI_SETDOCPOINTER, 0, (sptr_t)doc);
+	}
+
+	bool load(const gchar *filename);
+
+	void close(void);
+	inline void
+	undo_close(void)
+	{
+		undo.push(new UndoTokenClose(this));
+	}
+};
+
+extern class Ring {
+	LIST_HEAD(Head, Buffer) head;
+	Buffer *current;
+
+public:
+	Ring() : current(NULL)
+	{
+		LIST_INIT(&head);
+	}
+	~Ring();
+
+	Buffer *find(const gchar *filename);
+
+	bool edit(const gchar *filename);
+	inline void
+	undo_edit(void)
+	{
+		current->dot = editor_msg(SCI_GETCURRENTPOS);
+
+		undo.push_var<Buffer*>(current);
+		current->undo_edit();
+	}
+
+	void close(void);
+	inline void
+	undo_close(void)
+	{
+		current->undo_close();
+	}
+} ring;
+
+/*
+ * Command states
+ */
+
+class StateFile : public StateExpectString {
+private:
+	State *done(const gchar *str);
+};
+
+#endif