lyx_mirror/src/frontends/xforms/FormBase.h

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// -*- C++ -*-
/**
* \file FormBase.h
* Copyright 2000-2002 the LyX Team
* Read the file COPYING
*
* \author Angus Leeming, a.leeming@ic.ac.uk
*/
/* A base class for the MCV-ed xforms dialogs.
*/
#ifndef FORMBASE_H
#define FORMBASE_H
#ifdef __GNUG__
#pragma interface
#endif
#include "ViewBase.h"
#include "LString.h"
#include "ButtonPolicies.h"
#include "FeedbackController.h"
#include <boost/scoped_ptr.hpp>
#include FORMS_H_LOCATION // Can't forward-declare FL_FORM
class xformsBC;
class Tooltips;
/** This class is an XForms GUI base class.
*/
class FormBase : public ViewBC<xformsBC>, public FeedbackController
{
public:
///
FormBase(ControlButtons &, string const &, bool allowResize);
///
virtual ~FormBase();
/** input callback function. invoked only by the xforms callback
* interface
*/
void InputCB(FL_OBJECT *, long);
Tooltips & tooltips();
protected:
/// Build the dialog
virtual void build() = 0;
/// Hide the dialog.
void hide();
/// Create the dialog if necessary, update it and display it.
void show();
/** Prepare the way to:
* 1. display feedback as the mouse moves over ob. This feedback will
* typically be rather more verbose than just a tooltip.
* 2. activate the button controller after a paste with the middle
* mouse button.
*/
static void setPrehandler(FL_OBJECT * ob);
private:
/// Pointer to the actual instantiation of xform's form
virtual FL_FORM * form() const = 0;
/// Filter the inputs on callback from xforms
virtual ButtonPolicy::SMInput input(FL_OBJECT *, long);
/** Redraw the form (on receipt of a Signal indicating, for example,
* that the xform colors have been re-mapped).
*/
virtual void redraw();
/// The dialog's minimum allowable dimensions.
int minw_;
///
int minh_;
/// Can the dialog be resized after it has been created?
bool allow_resize_;
/// dialog title, displayed by WM.
string title_;
///
Tooltips * tooltips_;
};
template <class Dialog>
class FormDB: public FormBase
{
protected:
///
FormDB(ControlButtons &, string const &, bool allowResize=true);
/// Pointer to the actual instantiation of xform's form
virtual FL_FORM * form() const;
/// Real GUI implementation.
boost::scoped_ptr<Dialog> dialog_;
};
template <class Dialog>
FormDB<Dialog>::FormDB(ControlButtons & c, string const & t, bool allowResize)
: FormBase(c, t, allowResize)
{}
template <class Dialog>
FL_FORM * FormDB<Dialog>::form() const
{
if (dialog_.get()) return dialog_->form;
return 0;
}
template <class Controller, class Base>
class FormCB: public Base
{
protected:
///
FormCB(Controller &, string const &, bool allowResize=true);
/// The parent controller
Controller & controller() const;
};
template <class Controller, class Base>
FormCB<Controller, Base>::FormCB(Controller & c, string const & t,
bool allowResize)
: Base(c, t, allowResize)
{}
template <class Controller, class Base>
Controller & FormCB<Controller, Base>::controller() const
{
return static_cast<Controller &>(controller_);
//return dynamic_cast<Controller &>(controller_);
}
#endif // FORMBASE_H