mirror of
https://git.lyx.org/repos/lyx.git
synced 2024-09-22 07:57:22 +00:00
209b04eaa9
git-svn-id: svn://svn.lyx.org/lyx/lyx-devel/trunk@23991 a592a061-630c-0410-9148-cb99ea01b6c8
254 lines
7.0 KiB
C++
254 lines
7.0 KiB
C++
/**
|
|
* \file frontend/Application.h
|
|
* This file is part of LyX, the document processor.
|
|
* Licence details can be found in the file COPYING.
|
|
*
|
|
* \author Abdelrazak Younes
|
|
*
|
|
* Full author contact details are available in file CREDITS.
|
|
*/
|
|
|
|
#ifndef APPLICATION_H
|
|
#define APPLICATION_H
|
|
|
|
#include "ColorCode.h"
|
|
|
|
#include "support/strfwd.h"
|
|
#include "support/docstring.h"
|
|
|
|
#include <boost/function.hpp>
|
|
|
|
#include <vector>
|
|
|
|
|
|
namespace lyx {
|
|
|
|
class BufferView;
|
|
class Buffer;
|
|
class FuncRequest;
|
|
class FuncStatus;
|
|
class Inset;
|
|
class Lexer;
|
|
struct RGBColor;
|
|
|
|
namespace frontend {
|
|
|
|
class Clipboard;
|
|
class FontLoader;
|
|
class Gui;
|
|
class LyXView;
|
|
class Selection;
|
|
|
|
/// The main application class
|
|
/**
|
|
There should be only one instance of this class. No Qt object
|
|
initialisation should be done before the instanciation of this class.
|
|
|
|
Model/View/Controller separation at frontend level in LyX-qt4:
|
|
|
|
BufferList (N Buffers)
|
|
|
|
|
Buffer-a
|
|
Buffer-b
|
|
Buffer-c
|
|
Buffer-d
|
|
|
|
Application (this is the frontend really, should probably be renamed).
|
|
|
|
|
LyXView-1 (one or more in case of split-view mode).
|
|
| |
|
|
| <tab-widget-1-1>
|
|
| | |
|
|
| | WorkArea-1-1-1 (M1-1 WorkAreas, M1-1 <= N)
|
|
| | | |
|
|
| | | BufferView <-----------> Buffer-c
|
|
| | | |
|
|
| | | Cursor
|
|
| | |
|
|
| | WorkArea-1-1-2
|
|
| | | |
|
|
| | | BufferView <-----------> Buffer-a
|
|
| | | |
|
|
| | | Cursor
|
|
| |
|
|
| <tab-widget-1-2>
|
|
|
|
|
LyXView-2 (one or more in case of split-view mode).
|
|
| |
|
|
| <tab-widget-2-1>
|
|
| | |
|
|
| | WorkArea-2-1-1 (M2-1 WorkAreas, M2-1 <= N, M2-1 independent of M1-1)
|
|
...
|
|
|
|
|
|
1) The Model: \c Buffer
|
|
|
|
The Buffer is the in-memory representation of a LyX file format. The
|
|
Buffer does not (should not) have any information on what part of it
|
|
is represented on screen. There is one unique Buffer per opened LyX
|
|
file. A Buffer may or may not be represented on screen; typically, a
|
|
child document does not have an associated BufferView unless the user
|
|
choose to visualize it.
|
|
|
|
|
|
2) The Controller: \c BufferView / \c Painter \c Cursor
|
|
|
|
The BufferView is a tool used by the view (\sa WorkArea) that
|
|
translates a part of the Buffer contents into drawing routines. The
|
|
BufferView asks each inset of the Buffer to draw itself onto the
|
|
screen using the Painter. There can be only one Buffer displayed in
|
|
a BufferView and it is set on construction. Ideally, a BufferView
|
|
should not be able to change the contents of its associated Buffer.
|
|
A BufferView is instanciated and destroyed by a \c WorkArea; it is
|
|
automatically destroyed by the parent WorkArea when its Buffer is
|
|
closed.
|
|
|
|
\todo Move all Buffer changing LFUN to LyXFunc or Cursor.
|
|
\todo BufferView::buffer() should only offer const access.
|
|
|
|
The \c Painter is just a virtual interface to formalize each kind of
|
|
drawing routines (text, line, rectangle, etc).
|
|
|
|
The \c BufferView also contains a Cursor which may or may not be
|
|
visible on screen. The cursor is really just a bookmark to remember
|
|
where the next Buffer insertion/deletion is going to take place.
|
|
|
|
|
|
3) The View: \c WorkArea (and it's qt4 specialisation GuiWorkArea)
|
|
|
|
This contains the real screen area where the drawing is done by the
|
|
Painter. One WorkArea holds one unique \c BufferView. While it could
|
|
be possible that multiple WorkArea share one BufferView, this is not
|
|
something desirable because a BufferView is dependent of the WorkArea
|
|
size.
|
|
The WorkArea also provide a scrollbar which position is translated
|
|
into scrolling command to the inner \c BufferView.
|
|
|
|
The WorkArea use the BufferView to translate each keyboard or mouse
|
|
events into terms that the Buffer can understand:
|
|
- insert/delete char
|
|
- select char
|
|
- etc.
|
|
|
|
|
|
4) The Window: \c LyXView (and its qt4 specialisation \c GuiView)
|
|
|
|
This is a full window containing a menubar, toolbars and a central
|
|
widget. A LyXView is in charge of creating and closing a View for a
|
|
given Buffer.
|
|
In the qt4 specialisation, \c GuiView, the central widget is a tab
|
|
widget. Each tab is reverved to the visualisation of one Buffer and
|
|
contains one WorkArea. In the qt4 frontend, one LyXView thus contains
|
|
multiple WorkAreas but this number can limited to one for another
|
|
frontend. The idea is that the kernel should not know how a Buffer
|
|
is displayed on screen; it's the frontend business.
|
|
In the future, we may also have multiple Workareas showing
|
|
simultaneously in the same GuiView (ex: with split window).
|
|
|
|
\todo Implement split-window
|
|
|
|
In any case, there would be only one WorkArea that gets the focus
|
|
at a time.
|
|
|
|
With our current implementation using a QTabWidget, each Tab own its
|
|
own \c WorkArea. Clicking on a tab switch a WorkArea and not really
|
|
a Buffer. LFUN_BUFFER_SWITCH will tell the frontend to search the
|
|
WorkArea associated to this Buffer. The WorkArea is automatically
|
|
created if not already present.
|
|
|
|
A WorkArea is connected to the Buffer::closing signal and is thus
|
|
automatically destroyed when its Buffer is closed.
|
|
|
|
*/
|
|
class Application
|
|
{
|
|
public:
|
|
///
|
|
Application() {}
|
|
///
|
|
virtual ~Application() {}
|
|
|
|
///
|
|
virtual FuncStatus getStatus(FuncRequest const & cmd) = 0;
|
|
/// dispatch command.
|
|
/// \return true if the \c FuncRequest has been dispatched.
|
|
virtual bool dispatch(FuncRequest const & cmd) = 0;
|
|
|
|
///
|
|
virtual void resetGui() = 0;
|
|
|
|
/// Load files and restore GUI Session.
|
|
virtual void restoreGuiSession() = 0;
|
|
|
|
///
|
|
virtual void hideDialogs(std::string const & name, Inset * inset) const = 0;
|
|
///
|
|
virtual Buffer const * updateInset(Inset const * inset) const = 0;
|
|
|
|
/// Start the main event loop.
|
|
/// The batch command is programmed to be execute once
|
|
/// the event loop is started.
|
|
virtual int exec() = 0;
|
|
|
|
/// Quit running LyX.
|
|
/**
|
|
* This may either quit directly or record the exit status
|
|
* and only stop the event loop.
|
|
*/
|
|
virtual void exit(int status) = 0;
|
|
|
|
/**
|
|
* Given col, fills r, g, b in the range 0-255.
|
|
* The function returns true if successful.
|
|
* It returns false on failure and sets r, g, b to 0.
|
|
*/
|
|
virtual bool getRgbColor(ColorCode col, RGBColor & rgbcol) = 0;
|
|
|
|
/** Eg, passing Color_black returns "000000",
|
|
* passing Color_white returns "ffffff".
|
|
*/
|
|
virtual std::string const hexName(ColorCode col) = 0;
|
|
|
|
/**
|
|
* update an altered GUI color
|
|
*/
|
|
virtual void updateColor(ColorCode col) = 0;
|
|
|
|
/**
|
|
* read and create the menu structure
|
|
*/
|
|
virtual void readMenus(Lexer & lex) = 0;
|
|
|
|
/**
|
|
* initialize the global menubar on Mac
|
|
*/
|
|
virtual void initGlobalMenu() = 0;
|
|
|
|
/**
|
|
* add a callback for socket read notification
|
|
* @param fd socket descriptor (file/socket/etc)
|
|
*/
|
|
typedef boost::function<void()> SocketCallback;
|
|
virtual void registerSocketCallback(int fd, SocketCallback func) = 0;
|
|
|
|
/**
|
|
* remove a I/O read callback
|
|
* @param fd socket descriptor (file/socket/etc)
|
|
*/
|
|
virtual void unregisterSocketCallback(int fd) = 0;
|
|
|
|
virtual bool searchMenu(FuncRequest const & func,
|
|
std::vector<docstring> & names) const = 0;
|
|
};
|
|
|
|
} // namespace frontend
|
|
|
|
frontend::Application * theApp();
|
|
frontend::Application * createApplication(int & argc, char * argv[]);
|
|
void hideDialogs(std::string const & name, Inset * inset);
|
|
|
|
} // namespace lyx
|
|
|
|
|
|
#endif // APPLICATION_H
|