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/*
* Copyright (C) 2012-2013 Robin Haberkorn
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef __RING_H
#define __RING_H
#include <string.h>
#include <bsd/sys/queue.h>
#include <glib.h>
#include <glib/gprintf.h>
#include <glib/gstdio.h>
#include <Scintilla.h>
#include "sciteco.h"
#include "interface.h"
#include "undo.h"
#include "document.h"
#include "qregisters.h"
#include "parser.h"
/*
* Auxiliary functions
*/
static inline bool
is_glob_pattern(const gchar *str)
{
return strchr(str, '*') || strchr(str, '?');
}
/*
* Get absolute/full version of a possibly relative path.
* Works with existing and non-existing paths (in the latter case,
* heuristics may be applied.)
*/
gchar *get_absolute_path(const gchar *path);
/*
* Classes
*/
class Buffer : public TECODocument {
class UndoTokenClose : public UndoToken {
Buffer *buffer;
public:
UndoTokenClose(Buffer *_buffer)
: UndoToken(), buffer(_buffer) {}
void run(void);
};
public:
TAILQ_ENTRY(Buffer) buffers;
gchar *filename;
gint savepoint_id;
bool dirty;
Buffer() : TECODocument(),
filename(NULL), savepoint_id(0), dirty(false) {}
~Buffer()
{
g_free(filename);
}
inline Buffer *&
next(void)
{
return TAILQ_NEXT(this, buffers);
}
inline Buffer *&
prev(void)
{
TAILQ_HEAD(Head, Buffer);
return TAILQ_PREV(this, Head, buffers);
}
inline void
set_filename(const gchar *filename)
{
gchar *resolved = get_absolute_path(filename);
g_free(Buffer::filename);
Buffer::filename = resolved;
interface.info_update(this);
}
inline void
edit(void)
{
TECODocument::edit();
interface.info_update(this);
}
inline void
undo_edit(void)
{
interface.undo_info_update(this);
TECODocument::undo_edit();
}
void load(const gchar *filename);
inline void
undo_close(void)
{
undo.push(new UndoTokenClose(this));
}
};
/* object declared in main.cpp */
extern class Ring {
/*
* Emitted after a buffer close
* The pointer is the only remaining reference to the buffer!
*/
class UndoTokenEdit : public UndoToken {
Ring *ring;
Buffer *buffer;
public:
UndoTokenEdit(Ring *_ring, Buffer *_buffer)
: UndoToken(), ring(_ring), buffer(_buffer) {}
~UndoTokenEdit()
{
if (buffer)
delete buffer;
}
void run(void);
};
class UndoTokenRemoveFile : public UndoToken {
gchar *filename;
public:
UndoTokenRemoveFile(const gchar *_filename)
: filename(g_strdup(_filename)) {}
~UndoTokenRemoveFile()
{
g_free(filename);
}
void
run(void)
{
g_unlink(filename);
}
};
TAILQ_HEAD(Head, Buffer) head;
public:
Buffer *current;
Ring() : current(NULL)
{
TAILQ_INIT(&head);
}
~Ring();
inline Buffer *
first(void)
{
return TAILQ_FIRST(&head);
}
inline Buffer *
last(void)
{
return TAILQ_LAST(&head, Head);
}
Buffer *find(const gchar *filename);
Buffer *find(tecoInt id);
void dirtify(void);
bool is_any_dirty(void);
bool edit(tecoInt id);
void edit(const gchar *filename);
inline void
undo_edit(void)
{
current->update();
undo.push_var(QRegisters::current);
undo.push_var(current)->undo_edit();
}
bool save(const gchar *filename);
void close(Buffer *buffer);
void close(void);
inline void
undo_close(void)
{
current->undo_close();
}
} ring;
/*
* Command states
*/
class StateEditFile : public StateExpectFile {
private:
bool allowFilename;
void do_edit(const gchar *filename);
void do_edit(tecoInt id);
void initial(void);
State *done(const gchar *str);
};
class StateSaveFile : public StateExpectFile {
private:
State *done(const gchar *str);
};
namespace States {
extern StateEditFile editfile;
extern StateSaveFile savefile;
}
/* FIXME: clean up current_doc_update() usage */
static inline void
current_doc_update(void)
{
if (ring.current)
ring.current->update();
else if (QRegisters::current)
QRegisters::current->update_string();
}
#endif
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