netradiant-custom/contrib/meshtex/GenericPluginUI.h

277 lines
9.1 KiB
C++

/**
* @file GenericPluginUI.h
* Declares the GenericPluginUI class.
* @ingroup generic-ui
*/
/*
* Copyright 2012 Joel Baxter
*
* This file is part of MeshTex.
*
* MeshTex 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 2 of the License, or
* (at your option) any later version.
*
* MeshTex 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 MeshTex. If not, see <http://www.gnu.org/licenses/>.
*/
#if !defined(INCLUDED_GENERICPLUGINUI_H)
#define INCLUDED_GENERICPLUGINUI_H
#include <vector>
#include <gdk/gdk.h>
#include <glib.h>
#include "GenericMainMenu.h"
#include "GenericDialog.h"
#include "qerplugin.h"
#include "generic/referencecounted.h"
/**
* Framework for a manager of a command menu and dialog windows. It is
* responsible for:
* - holding a reference on those objects for lifecycle management
* - providing lookup facilities for those objects
* - mapping GTK+ event/signal callbacks into method invocations on
* the dialog objects
* - providing automatic handling of widgets that should be active or
* inactive based on the active state of other widgets
* - providing utility functions for generating message popups
*
* A subclass should handle the creation and registration of the UI objects.
*
* @ingroup generic-ui
*/
class GenericPluginUI
{
protected: // protected methods
/// @name Lifecycle
//@{
GenericPluginUI();
virtual ~GenericPluginUI();
//@}
private: // private methods
/// @name Unimplemented to prevent copy/assignment
//@{
GenericPluginUI(const GenericPluginUI&);
const GenericPluginUI& operator=(const GenericPluginUI&);
//@}
public: // public types
/**
* Type for GTK+ event callbacks. The callback takes a GtkWidget* argument
* (widget generating the event), a GdkEvent* argument (the event), and a
* gpointer argument (the callback ID); it returns gint (success as TRUE or
* FALSE).
*/
typedef Callback3<GtkWidget *, GdkEvent *, gpointer, gint> DialogEventCallback;
/**
* Type for GTK+ signal callbacks. The callback takes a GtkWidget* argument
* (widget generating the signal) and a gpointer argument (the callback data);
* it has no return value.
*/
typedef Callback2<GtkWidget *, gpointer, void> DialogSignalCallback;
/**
* An instance of this class can be used as a
* GenericPluginUI::DialogEventCallback, in situations where the callback is
* a method to be invoked on a target object. When invoking this constructor,
* the target object is the constructor argument, and the target object class
* and method are template parameters. The target object's method must have
* an appropriate signature for DialogEventCallback: one GtkWidget* argument,
* one GdkEvent* argument, one gpointer argument, gint return.
*/
template<typename ObjectClass, gint (ObjectClass::*member)(GtkWidget *, GdkEvent*, gpointer)>
class DialogEventCallbackMethod : public BindFirstOpaque3<Member3<ObjectClass, GtkWidget *, GdkEvent*, gpointer, gint, member> >
{
public:
/**
* Constructor.
*
* @param object The object on which to invoke the callback method.
*/
DialogEventCallbackMethod(ObjectClass& object) :
BindFirstOpaque3<Member3<ObjectClass, GtkWidget *, GdkEvent *, gpointer, gint, member> >(object) {}
};
/**
* An instance of this class can be used as a
* GenericPluginUI::DialogSignalCallback, in situations where the callback is
* a method to be invoked on a target object. When invoking this constructor,
* the target object is the constructor argument, and the target object class
* and method are template parameters. The target object's method must have
* an appropriate signature for DialogSignalCallback: one GtkWidget* argument,
* one gpointer argument, void return.
*/
template<typename ObjectClass, void (ObjectClass::*member)(GtkWidget *, gpointer)>
class DialogSignalCallbackMethod : public BindFirstOpaque2<Member2<ObjectClass, GtkWidget *, gpointer, void, member> >
{
public:
/**
* Constructor.
*
* @param object The object on which to invoke the callback method.
*/
DialogSignalCallbackMethod(ObjectClass& object) :
BindFirstOpaque2<Member2<ObjectClass, GtkWidget *, gpointer, void, member> >(object) {}
};
public: // public methods
/// @name Setup
//@{
void RegisterMainMenu(SmartPointer<GenericMainMenu>& mainMenu);
void RegisterDialog(SmartPointer<GenericDialog>& dialog);
void SetWindow(GtkWidget *window);
//@}
/// @name Lookup
//@{
GenericMainMenu *MainMenu();
GenericDialog *Dialog(const std::string& key);
//@}
/// @name Event/signal dispatch
//@{
static gint DialogEventCallbackDispatch(GtkWidget *widget,
GdkEvent* event,
gpointer data);
static void DialogSignalCallbackDispatch(GtkWidget *widget,
gpointer data);
gpointer RegisterDialogEventCallback(GtkWidget *widget,
const gchar *name,
const DialogEventCallback& callback);
gpointer RegisterDialogSignalCallback(GtkWidget *widget,
const gchar *name,
const DialogSignalCallback& callback);
//@}
/// @name Widget dependence
//@{
void RegisterWidgetDependence(GtkWidget *controller,
GtkWidget *controllee);
void RegisterWidgetAntiDependence(GtkWidget *controller,
GtkWidget *controllee);
void WidgetControlCallback(GtkWidget *widget,
gpointer callbackID);
//@}
/// @name Message popups
//@{
static void ErrorReportDialog(const char *title,
const char *message);
static void WarningReportDialog(const char *title,
const char *message);
static void InfoReportDialog(const char *title,
const char *message);
//@}
private: // private types
/**
* Type for a map between string and reference-counted dialog window.
*/
typedef std::map<std::string, SmartPointer<GenericDialog> > DialogMap;
/**
* Type for a map between gpointer (for callback ID) and event callback.
*/
typedef std::map<gpointer, DialogEventCallback> DialogEventCallbackMap;
/**
* Type for a map between gpointer (for callback ID) and signal callback.
*/
typedef std::map<gpointer, DialogSignalCallback> DialogSignalCallbackMap;
/**
* Type for a map between a widget and a vector of widgets.
*/
typedef std::map<GtkWidget *, std::vector<GtkWidget *> > WidgetDependenceMap;
private: // private member vars
/**
* The parent window.
*/
GtkWidget *_window;
/**
* Pointer to a reference-counted handle on the main menu object.
*/
SmartPointer<GenericMainMenu> *_mainMenu;
/**
* Next ID to use when registering an event or signal callback. Starts at 1;
* 0 is reserved to mean invalid.
*/
unsigned _callbackID;
/**
* Callback to implement widget-active dependences.
*/
const DialogSignalCallbackMethod<GenericPluginUI, &GenericPluginUI::WidgetControlCallback>
_widgetControlCallback;
/**
* Associations between keys and dialog windows.
*/
DialogMap _dialogMap;
/**
* Associations between callback IDs and event callbacks.
*/
DialogEventCallbackMap _dialogEventCallbackMap;
/**
* Associations between callback IDs and signal callbacks.
*/
DialogSignalCallbackMap _dialogSignalCallbackMap;
/**
* Associations between controller and controllee widgets for all dependences
* and anti-dependences.
*/
WidgetDependenceMap _widgetControlMap;
/**
* Associations between controller and controllee widgets for dependences
* only.
*/
WidgetDependenceMap _widgetControlledByMap;
/**
* Associations between controller and controllee widgets for anti-
* dependences only.
*/
WidgetDependenceMap _widgetAntiControlledByMap;
};
/**
* Get the singleton instance of the UI manager.
*
* @internal
* This function is not implemented in the GenericPluginUI.cpp file. It must
* be implemented somewhere, because it is invoked from various places even
* within the generic UI code. The implementation of this function should
* return a reference to the singleton instance of a GenericPluginUI subclass.
* @endinternal
*
* @return Reference to a singleton that implements GenericPluginUI.
*
* @relates GenericPluginUI
*/
GenericPluginUI& UIInstance();
#endif // #if !defined(INCLUDED_GENERICPLUGINUI_H)