GHOST_WindowManager.cpp

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/*
 * ***** BEGIN GPL LICENSE BLOCK *****
 *
 * 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 2
 * 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, write to the Free Software Foundation,
 * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 * The Original Code is Copyright (C) 2001-2002 by NaN Holding BV.
 * All rights reserved.
 *
 * The Original Code is: all of this file.
 *
 * Contributor(s): none yet.
 *
 * ***** END GPL LICENSE BLOCK *****
 */

#include "GHOST_WindowManager.h"
#include <algorithm>
#include "GHOST_Debug.h"
#include "GHOST_Window.h"


GHOST_WindowManager::GHOST_WindowManager() : 
    m_fullScreenWindow(0),
    m_activeWindow(0),
    m_activeWindowBeforeFullScreen(0)
{
}


GHOST_WindowManager::~GHOST_WindowManager()
{
    /* m_windows is freed by GHOST_System::disposeWindow */
}


GHOST_TSuccess GHOST_WindowManager::addWindow(GHOST_IWindow* window)
{
    GHOST_TSuccess success = GHOST_kFailure;
    if (window) {
        if (!getWindowFound(window)) {
            // Store the pointer to the window 
            m_windows.push_back(window);
            success = GHOST_kSuccess;
        }
    }
    return success;
}


GHOST_TSuccess GHOST_WindowManager::removeWindow(const GHOST_IWindow* window)
{
    GHOST_TSuccess success = GHOST_kFailure;
    if (window) {
        if (window == m_fullScreenWindow) {
            endFullScreen();
        }
        else {
            vector<GHOST_IWindow*>::iterator result = find(m_windows.begin(), m_windows.end(), window);
            if (result != m_windows.end()) {
                setWindowInactive(window);
                m_windows.erase(result);
                success = GHOST_kSuccess;
            }
        }
    }
    return success;
}


bool GHOST_WindowManager::getWindowFound(const GHOST_IWindow* window) const
{
    bool found = false;
    if (window) {
        if (getFullScreen() && (window == m_fullScreenWindow)) {
            found = true;
        }
        else {
            vector<GHOST_IWindow*>::const_iterator result = find(m_windows.begin(), m_windows.end(), window);
            if (result != m_windows.end()) {
                found = true;
            }
        }
    }
    return found;
}


bool GHOST_WindowManager::getFullScreen(void) const
{
    return m_fullScreenWindow != 0;
}


GHOST_IWindow* GHOST_WindowManager::getFullScreenWindow(void) const
{
    return m_fullScreenWindow;
}


GHOST_TSuccess GHOST_WindowManager::beginFullScreen(GHOST_IWindow* window,
        bool stereoVisual)
{
    GHOST_TSuccess success = GHOST_kFailure;
    GHOST_ASSERT(window, "GHOST_WindowManager::beginFullScreen(): invalid window");
    GHOST_ASSERT(window->getValid(), "GHOST_WindowManager::beginFullScreen(): invalid window");
    if (!getFullScreen()) {
        m_fullScreenWindow = window;
        m_activeWindowBeforeFullScreen = getActiveWindow();
        setActiveWindow(m_fullScreenWindow);
        success = GHOST_kSuccess;
    }
    return success;
}


GHOST_TSuccess GHOST_WindowManager::endFullScreen(void)
{
    GHOST_TSuccess success = GHOST_kFailure;
    if (getFullScreen()) {
        if (m_fullScreenWindow != 0) {
            //GHOST_PRINT("GHOST_WindowManager::endFullScreen(): deleting full-screen window\n");
            setWindowInactive(m_fullScreenWindow);
            delete m_fullScreenWindow;
            //GHOST_PRINT("GHOST_WindowManager::endFullScreen(): done\n");
            m_fullScreenWindow = 0;
            if (m_activeWindowBeforeFullScreen) {
                setActiveWindow(m_activeWindowBeforeFullScreen);
            }
        }
        success = GHOST_kSuccess;
    }
    return success;
}


GHOST_TSuccess GHOST_WindowManager::setActiveWindow(GHOST_IWindow* window)
{
    GHOST_TSuccess success = GHOST_kSuccess;
    if (window != m_activeWindow) {
        if (getWindowFound(window)) {
            m_activeWindow = window;
        }
        else {
            success = GHOST_kFailure;
        }
    }
    return success;
}
    

GHOST_IWindow* GHOST_WindowManager::getActiveWindow(void) const
{
    return m_activeWindow;
}


void GHOST_WindowManager::setWindowInactive(const GHOST_IWindow* window)
{
    if (window == m_activeWindow) {
        m_activeWindow = 0;
    }
}


std::vector<GHOST_IWindow *> &GHOST_WindowManager::getWindows()
{
    return m_windows;
}


GHOST_IWindow* GHOST_WindowManager::getWindowAssociatedWithOSWindow(void* osWindow)
{
    std::vector<GHOST_IWindow*>::iterator iter;

    for (iter = m_windows.begin(); iter != m_windows.end(); iter++) {
        if ((*iter)->getOSWindow() == osWindow)
            return *iter;
    }
    
    return NULL;
}

bool GHOST_WindowManager::getAnyModifiedState()
{
    bool isAnyModified = false;
    std::vector<GHOST_IWindow*>::iterator iter;
    
    for (iter = m_windows.begin(); iter != m_windows.end(); iter++) {
        if ((*iter)->getModifiedState())
            isAnyModified = true;
    }

    return isAnyModified;
}