b10d0058d7
When WITH_INPUT_NDOF is disabled, 3D mouse handling code is removed from: - GHOST (was mostly done, finished the job) - window manager - various editors - RNA - keymaps The input tab of user prefs does not show 3D mouse settings. Key map editor does not show NDOF mappings. DNA does not change. On my Mac the compiled binary is 42KB smaller after this change. It runs fine WITH_INPUT_NDOF on or off.
445 lines
15 KiB
C++
445 lines
15 KiB
C++
/*
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* ***** BEGIN GPL LICENSE BLOCK *****
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
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* All rights reserved.
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*
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* The Original Code is: all of this file.
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*
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* Contributor(s): none yet.
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*
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* ***** END GPL LICENSE BLOCK *****
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*/
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/** \file ghost/GHOST_ISystem.h
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* \ingroup GHOST
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* %Main interface file for C++ Api with declaration of GHOST_ISystem interface
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* class.
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* Contains the doxygen documentation main page.
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*/
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#ifndef __GHOST_ISYSTEM_H__
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#define __GHOST_ISYSTEM_H__
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#include "GHOST_Types.h"
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#include "GHOST_ITimerTask.h"
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#include "GHOST_IWindow.h"
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class GHOST_IEventConsumer;
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/**
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* \page GHOSTPage GHOST
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*
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* \section intro Introduction
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*
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* GHOST is yet another acronym. It stands for "Generic Handy Operating System
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* Toolkit". It has been created to replace the OpenGL utility tool kit
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* <a href="http://www.opengl.org/resources/libraries/glut/">GLUT</a>.
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* GLUT was used in <a href="http://www.blender3d.com">Blender</a> until the
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* point that Blender needed to be ported to Apple's Mac OSX. Blender needed a
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* number of modifications in GLUT to work but the GLUT sources for OSX were
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* unavailable at the time. The decision was made to build our own replacement
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* for GLUT. In those days, NaN Technologies BV was the company that developed
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* Blender.
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* <br><br>
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* Enough history. What does GHOST have to offer?<br>
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* In short: everything that Blender needed from GLUT to run on all it's supported
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* operating systems and some extra's.
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* This includes :
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*
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* - Time(r) management.
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* - Display/window management (windows are only created on the main display).
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* - Event management.
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* - Cursor shape management (no custom cursors for now).
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* - Access to the state of the mouse buttons and the keyboard.
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* - Menus for windows with events generated when they are accessed (this is
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* work in progress).
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* - Video mode switching.
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* - Copy/Paste buffers.
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* - System paths.
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*
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* Font management has been moved to a separate library.
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*
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* \section platforms Platforms
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*
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* GHOST supports the following platforms:
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*
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* - OSX Cocoa.
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* - Windows.
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* - X11.
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* - SDL2 (experimental).
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* - NULL (headless mode).
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*
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* \section Building GHOST
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*
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* GHOST is not build standalone however there are tests in intern/ghost/test
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*
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* \section interface Interface
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* GHOST has two programming interfaces:
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*
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* - The C-API. For programs written in C.
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* - The C++-API. For programs written in C++.
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*
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* GHOST itself is written in C++ and the C-API is a wrapper around the C++
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* API.
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*
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* \subsection cplusplus_api The C++ API consists of the following files:
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*
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* - GHOST_IEvent.h
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* - GHOST_IEventConsumer.h
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* - GHOST_ISystem.h
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* - GHOST_ITimerTask.h
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* - GHOST_IWindow.h
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* - GHOST_Rect.h
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* - GHOST_Types.h
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*
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* For an example of using the C++-API, have a look at the GHOST_C-Test.cpp
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* program in the ?/ghost/test/gears/ directory.
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*
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* \subsection c_api The C-API
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* To use GHOST in programs written in C, include the file GHOST_C-API.h in
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* your program. This file includes the GHOST_Types.h file for all GHOST types
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* and defines functions that give you access to the same functionality present
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* in the C++ API.<br>
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* For an example of using the C-API, have a look at the GHOST_C-Test.c program
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* in the ?/ghost/test/gears/ directory.
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*
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* \section work Work in progress
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* \todo write WIP section
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*/
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/** \interface GHOST_ISystem
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* Interface for classes that provide access to the operating system.
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* There should be only one system class in an application.
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* Therefore, the routines to create and dispose the system are static.
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* Provides:
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* -# Time(r) management.
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* -# Display/window management (windows are only created on the main display).
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* -# Event management.
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* -# Cursor shape management (no custom cursors for now).
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* -# Access to the state of the mouse buttons and the keyboard.
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* -# Menus for windows with events generated when they are accessed (this is
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* work in progress).
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* \author Maarten Gribnau
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* \date May 30, 2001
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*/
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class GHOST_ISystem
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{
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public:
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/**
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* Creates the one and only system.
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* \return An indication of success.
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*/
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static GHOST_TSuccess createSystem();
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/**
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* Disposes the one and only system.
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* \return An indication of success.
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*/
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static GHOST_TSuccess disposeSystem();
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/**
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* Returns a pointer to the one and only system (nil if it hasn't been created).
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* \return A pointer to the system.
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*/
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static GHOST_ISystem *getSystem();
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protected:
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/**
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* Constructor.
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* Protected default constructor to force use of static createSystem member.
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*/
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GHOST_ISystem() {
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}
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/**
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* Destructor.
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* Protected default constructor to force use of static dispose member.
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*/
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virtual ~GHOST_ISystem() {
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}
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public:
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/***************************************************************************************
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* Time(r) functionality
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***************************************************************************************/
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/**
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* Returns the system time.
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* Returns the number of milliseconds since the start of the system process.
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* Based on ANSI clock() routine.
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* \return The number of milliseconds.
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*/
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virtual GHOST_TUns64 getMilliSeconds() const = 0;
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/**
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* Installs a timer.
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* Note that, on most operating systems, messages need to be processed in order
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* for the timer callbacks to be invoked.
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* \param delay The time to wait for the first call to the timerProc (in milliseconds)
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* \param interval The interval between calls to the timerProc (in milliseconds)
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* \param timerProc The callback invoked when the interval expires,
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* \param userData Placeholder for user data.
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* \return A timer task (0 if timer task installation failed).
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*/
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virtual GHOST_ITimerTask *installTimer(GHOST_TUns64 delay,
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GHOST_TUns64 interval,
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GHOST_TimerProcPtr timerProc,
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GHOST_TUserDataPtr userData = NULL) = 0;
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/**
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* Removes a timer.
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* \param timerTask Timer task to be removed.
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess removeTimer(GHOST_ITimerTask *timerTask) = 0;
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/***************************************************************************************
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* Display/window management functionality
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***************************************************************************************/
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/**
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* Returns the number of displays on this system.
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* \return The number of displays.
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*/
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virtual GHOST_TUns8 getNumDisplays() const = 0;
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/**
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* Returns the dimensions of the main display on this system.
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* \return The dimension of the main display.
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*/
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virtual void getMainDisplayDimensions(GHOST_TUns32& width, GHOST_TUns32& height) const = 0;
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/**
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* Returns the combine dimensions of all monitors.
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* \return The dimension of the workspace.
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*/
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virtual void getAllDisplayDimensions(GHOST_TUns32& width, GHOST_TUns32& height) const = 0;
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/**
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* Create a new window.
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* The new window is added to the list of windows managed.
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* Never explicitly delete the window, use disposeWindow() instead.
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* \param title The name of the window (displayed in the title bar of the window if the OS supports it).
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* \param left The coordinate of the left edge of the window.
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* \param top The coordinate of the top edge of the window.
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* \param width The width the window.
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* \param height The height the window.
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* \param state The state of the window when opened.
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* \param type The type of drawing context installed in this window.
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* \param glSettings: Misc OpenGL settings.
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* \param exclusive: Use to show the window ontop and ignore others (used fullscreen).
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* \param parentWindow Parent (embedder) window
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* \return The new window (or 0 if creation failed).
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*/
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virtual GHOST_IWindow *createWindow(
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const STR_String& title,
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GHOST_TInt32 left, GHOST_TInt32 top, GHOST_TUns32 width, GHOST_TUns32 height,
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GHOST_TWindowState state, GHOST_TDrawingContextType type,
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GHOST_GLSettings glSettings,
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const bool exclusive = false,
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const GHOST_TEmbedderWindowID parentWindow = 0) = 0;
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/**
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* Dispose a window.
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* \param window Pointer to the window to be disposed.
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess disposeWindow(GHOST_IWindow *window) = 0;
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/**
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* Returns whether a window is valid.
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* \param window Pointer to the window to be checked.
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* \return Indication of validity.
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*/
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virtual bool validWindow(GHOST_IWindow *window) = 0;
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/**
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* Begins full screen mode.
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* \param setting The new setting of the display.
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* \param window Window displayed in full screen.
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* This window is invalid after full screen has been ended.
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess beginFullScreen(
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const GHOST_DisplaySetting& setting, GHOST_IWindow **window,
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const bool stereoVisual, const bool alphaBackground = 0, const GHOST_TUns16 numOfAASamples = 0) = 0;
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/**
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* Updates the resolution while in fullscreen mode.
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* \param setting The new setting of the display.
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* \param window Window displayed in full screen.
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*
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess updateFullScreen(
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const GHOST_DisplaySetting& setting, GHOST_IWindow **window) = 0;
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/**
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* Ends full screen mode.
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess endFullScreen(void) = 0;
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/**
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* Returns current full screen mode status.
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* \return The current status.
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*/
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virtual bool getFullScreen(void) = 0;
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/**
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* Native pixel size support (MacBook 'retina').
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*/
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virtual bool useNativePixel(void) = 0;
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/***************************************************************************************
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* Event management functionality
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***************************************************************************************/
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/**
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* Retrieves events from the system and stores them in the queue.
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* \param waitForEvent Flag to wait for an event (or return immediately).
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* \return Indication of the presence of events.
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*/
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virtual bool processEvents(bool waitForEvent) = 0;
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/**
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* Retrieves events from the queue and send them to the event consumers.
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*/
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virtual void dispatchEvents() = 0;
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/**
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* Adds the given event consumer to our list.
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* \param consumer The event consumer to add.
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess addEventConsumer(GHOST_IEventConsumer *consumer) = 0;
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/**
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* Removes the given event consumer to our list.
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* \param consumer The event consumer to remove.
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess removeEventConsumer(GHOST_IEventConsumer *consumer) = 0;
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/***************************************************************************************
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* Cursor management functionality
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***************************************************************************************/
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/**
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* Returns the current location of the cursor (location in screen coordinates)
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* \param x The x-coordinate of the cursor.
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* \param y The y-coordinate of the cursor.
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess getCursorPosition(GHOST_TInt32& x, GHOST_TInt32& y) const = 0;
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/**
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* Updates the location of the cursor (location in screen coordinates).
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* Not all operating systems allow the cursor to be moved (without the input device being moved).
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* \param x The x-coordinate of the cursor.
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* \param y The y-coordinate of the cursor.
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess setCursorPosition(GHOST_TInt32 x, GHOST_TInt32 y) = 0;
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/***************************************************************************************
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* Access to mouse button and keyboard states.
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***************************************************************************************/
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/**
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* Returns the state of a modifier key (ouside the message queue).
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* \param mask The modifier key state to retrieve.
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* \param isDown The state of a modifier key (true == pressed).
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess getModifierKeyState(GHOST_TModifierKeyMask mask, bool& isDown) const = 0;
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/**
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* Returns the state of a mouse button (ouside the message queue).
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* \param mask The button state to retrieve.
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* \param isDown Button state.
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess getButtonState(GHOST_TButtonMask mask, bool& isDown) const = 0;
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#ifdef WITH_INPUT_NDOF
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/**
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* Sets 3D mouse deadzone
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* \param deadzone: Deadzone of the 3D mouse (both for rotation and pan) relative to full range
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*/
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virtual void setNDOFDeadZone(float deadzone) = 0;
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#endif
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/**
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* Toggles console
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* \param action
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* - 0: Hides
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* - 1: Shows
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* - 2: Toggles
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* - 3: Hides if it runs not from command line
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* - *: Does nothing
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* \return current status (1 -visible, 0 - hidden)
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*/
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virtual int toggleConsole(int action) = 0;
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/***************************************************************************************
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* Access to clipboard.
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***************************************************************************************/
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/**
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* Returns the selection buffer
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* \return "unsigned char" from X11 XA_CUT_BUFFER0 buffer
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*
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*/
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virtual GHOST_TUns8 *getClipboard(bool selection) const = 0;
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/**
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* Put data to the Clipboard
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*/
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virtual void putClipboard(GHOST_TInt8 *buffer, bool selection) const = 0;
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/**
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* Confirms quitting he program when there is just one window left open
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* in the application
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*/
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virtual int confirmQuit(GHOST_IWindow *window) const = 0;
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protected:
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/**
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* Initialize the system.
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess init() = 0;
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/**
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* Shut the system down.
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* \return Indication of success.
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*/
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virtual GHOST_TSuccess exit() = 0;
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/** The one and only system */
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static GHOST_ISystem *m_system;
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#ifdef WITH_CXX_GUARDEDALLOC
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MEM_CXX_CLASS_ALLOC_FUNCS("GHOST:GHOST_ISystem")
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#endif
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};
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#endif // __GHOST_ISYSTEM_H__
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