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/*
* Copyright (C) 2012-2014 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 __INTERFACE_H
#define __INTERFACE_H
#include <stdarg.h>
#include <signal.h>
#include <glib.h>
#include <Scintilla.h>
#include "undo.h"
namespace SciTECO {
/* avoid include dependency conflict */
class QRegister;
class Buffer;
extern sig_atomic_t sigint_occurred;
class View {
class UndoTokenMessage : public UndoToken {
View *view;
unsigned int iMessage;
uptr_t wParam;
sptr_t lParam;
public:
UndoTokenMessage(View *_view, unsigned int _iMessage,
uptr_t _wParam = 0, sptr_t _lParam = 0)
: UndoToken(), view(_view),
iMessage(_iMessage),
wParam(_wParam), lParam(_lParam) {}
void
run(void)
{
view->ssm(iMessage, wParam, lParam);
}
};
class UndoTokenSetRepresentations : public UndoToken {
View *view;
public:
UndoTokenSetRepresentations(View *_view)
: view(_view) {}
void
run(void)
{
view->set_representations();
}
};
public:
virtual ~View() {}
virtual sptr_t ssm(unsigned int iMessage,
uptr_t wParam = 0, sptr_t lParam = 0) = 0;
inline void
undo_ssm(unsigned int iMessage,
uptr_t wParam = 0, sptr_t lParam = 0)
{
undo.push(new UndoTokenMessage(this, iMessage, wParam, lParam));
}
void set_representations(void);
inline void
undo_set_representations(void)
{
undo.push(new UndoTokenSetRepresentations(this));
}
protected:
void initialize(void);
};
/*
* Base class for all user interfaces - used mereley as a class interface.
* The actual instance of the interface has the platform-specific type
* (e.g. InterfaceGtk) since we would like to have the benefits of using
* classes but avoid the calling overhead when invoking virtual methods
* on Interface pointers.
* There's only one Interface* instance in the system.
*/
class Interface {
class UndoTokenShowView : public UndoToken {
View *view;
public:
UndoTokenShowView(View *_view)
: view(_view) {}
void run(void);
};
template <class Type>
class UndoTokenInfoUpdate : public UndoToken {
/* FIXME: can be implement this in interface.cpp - avoid saving iface */
Interface *iface;
Type *obj;
public:
UndoTokenInfoUpdate(Interface *_iface, Type *_obj)
: iface(_iface), obj(_obj) {}
void
run(void)
{
iface->info_update(obj);
}
};
public:
virtual GOptionGroup *
get_options(void)
{
return NULL;
}
/* expected to initialize Scintilla */
virtual void main(int &argc, char **&argv) = 0;
enum MessageType {
MSG_USER,
MSG_INFO,
MSG_WARNING,
MSG_ERROR
};
virtual void vmsg(MessageType type, const gchar *fmt, va_list ap) = 0;
inline void
msg(MessageType type, const gchar *fmt, ...) G_GNUC_PRINTF(3, 4)
{
va_list ap;
va_start(ap, fmt);
vmsg(type, fmt, ap);
va_end(ap);
}
virtual void msg_clear(void) {}
virtual void show_view(View *view) = 0;
inline void
undo_show_view(View *view)
{
undo.push(new UndoTokenShowView(view));
}
virtual View *get_current_view(void) = 0;
virtual sptr_t ssm(unsigned int iMessage,
uptr_t wParam = 0, sptr_t lParam = 0) = 0;
virtual void undo_ssm(unsigned int iMessage,
uptr_t wParam = 0, sptr_t lParam = 0) = 0;
virtual void info_update(QRegister *reg) = 0;
virtual void info_update(Buffer *buffer) = 0;
template <class Type>
inline void
undo_info_update(Type *obj)
{
undo.push(new UndoTokenInfoUpdate<Type>(this, obj));
}
/* NULL means to redraw the current cmdline if necessary */
virtual void cmdline_update(const gchar *cmdline = NULL) = 0;
enum PopupEntryType {
POPUP_PLAIN,
POPUP_FILE,
POPUP_DIRECTORY
};
virtual void popup_add(PopupEntryType type,
const gchar *name, bool highlight = false) = 0;
virtual void popup_show(void) = 0;
virtual void popup_clear(void) = 0;
virtual inline bool
is_interrupted(void)
{
return sigint_occurred != FALSE;
}
/* main entry point */
virtual void event_loop(void) = 0;
/*
* Interfacing to the external SciTECO world
* See main.cpp
*/
protected:
void stdio_vmsg(MessageType type, const gchar *fmt, va_list ap);
public:
void process_notify(SCNotification *notify);
};
} /* namespace SciTECO */
#ifdef INTERFACE_GTK
#include "interface-gtk.h"
#elif defined(INTERFACE_NCURSES)
#include "interface-ncurses.h"
#else
#error No interface selected!
#endif
namespace SciTECO {
/* object defined in main.cpp */
extern InterfaceCurrent interface;
}
#endif
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