/*
 * ***** 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 *****
 */

/** \file ghost/intern/GHOST_Window.cpp
 *  \ingroup GHOST
 */


/**
 * Copyright (C) 2001 NaN Technologies B.V.
 * \author	Maarten Gribnau
 * \date	May 10, 2001
 */

#include "GHOST_Window.h"

#include "GHOST_ContextNone.h"

#include <assert.h>

GHOST_Window::GHOST_Window(
        GHOST_TUns32 width, GHOST_TUns32 height,
        GHOST_TWindowState state,
        const bool wantStereoVisual,
        const bool /*exclusive*/,
        const GHOST_TUns16 wantNumOfAASamples)
    : m_drawingContextType(GHOST_kDrawingContextTypeNone),
      m_cursorVisible(true),
      m_cursorGrab(GHOST_kGrabDisable),
      m_cursorShape(GHOST_kStandardCursorDefault),
      m_wantStereoVisual(wantStereoVisual),
      m_wantNumOfAASamples(wantNumOfAASamples),
      m_context(new GHOST_ContextNone(false, 0))
{
	m_isUnsavedChanges = false;
	m_canAcceptDragOperation = false;
	
	m_progressBarVisible = false;
	
	m_cursorGrabAccumPos[0] = 0;
	m_cursorGrabAccumPos[1] = 0;
	
	m_nativePixelSize = 1.0f;

	m_fullScreen = state == GHOST_kWindowStateFullScreen;
	if (m_fullScreen) {
		m_fullScreenWidth = width;
		m_fullScreenHeight = height;
	}
}


GHOST_Window::~GHOST_Window()
{
	delete m_context;
}

void *GHOST_Window::getOSWindow() const
{
	return NULL;
}

GHOST_TSuccess GHOST_Window::setDrawingContextType(GHOST_TDrawingContextType type)
{
	if (type != m_drawingContextType) {
		delete m_context;
		m_context = NULL;

		if (type != GHOST_kDrawingContextTypeNone)
			m_context = newDrawingContext(type);

		if (m_context != NULL) {
			m_drawingContextType = type;
		}
		else {
			m_context = new GHOST_ContextNone(m_wantStereoVisual, m_wantNumOfAASamples);
			m_drawingContextType = GHOST_kDrawingContextTypeNone;
		}

		return (type == m_drawingContextType) ? GHOST_kSuccess : GHOST_kFailure;
	}
	else {
		return GHOST_kSuccess;
	}
}

GHOST_TSuccess GHOST_Window::swapBuffers()
{
	return m_context->swapBuffers();
}

GHOST_TSuccess GHOST_Window::setSwapInterval(int interval)
{
	return m_context->setSwapInterval(interval);
}

GHOST_TSuccess GHOST_Window::getSwapInterval(int& intervalOut)
{
	return m_context->getSwapInterval(intervalOut);
}

GHOST_TUns16 GHOST_Window::getNumOfAASamples()
{
	return m_context->getNumOfAASamples();
}

GHOST_TSuccess GHOST_Window::activateDrawingContext()
{
	return m_context->activateDrawingContext();
}

GHOST_TSuccess GHOST_Window::updateDrawingContext()
{
	return m_context->updateDrawingContext();
}

GHOST_TSuccess GHOST_Window::releaseNativeHandles()
{
	return m_context->releaseNativeHandles();
}

GHOST_TSuccess GHOST_Window::setCursorVisibility(bool visible)
{
	if (setWindowCursorVisibility(visible)) {
		m_cursorVisible = visible;
		return GHOST_kSuccess;
	}
	else {
		return GHOST_kFailure;
	}
}

GHOST_TSuccess GHOST_Window::setCursorGrab(GHOST_TGrabCursorMode mode, GHOST_Rect *bounds, GHOST_TInt32 mouse_ungrab_xy[2])
{
	if (m_cursorGrab == mode)
		return GHOST_kSuccess;

	/* override with new location */
	if (mouse_ungrab_xy) {
		assert(mode == GHOST_kGrabDisable);
		m_cursorGrabInitPos[0] = mouse_ungrab_xy[0];
		m_cursorGrabInitPos[1] = mouse_ungrab_xy[1];
	}

	if (setWindowCursorGrab(mode)) {

		if (mode == GHOST_kGrabDisable)
			m_cursorGrabBounds.m_l = m_cursorGrabBounds.m_r = -1;
		else if (bounds) {
			m_cursorGrabBounds = *bounds;
		}
		else {  /* if bounds not defined, use window */
			getClientBounds(m_cursorGrabBounds);
		}
		m_cursorGrab = mode;
		return GHOST_kSuccess;
	}
	else {
		return GHOST_kFailure;
	}
}

GHOST_TSuccess GHOST_Window::getCursorGrabBounds(GHOST_Rect& bounds)
{
	bounds = m_cursorGrabBounds;
	return (bounds.m_l == -1 && bounds.m_r == -1) ? GHOST_kFailure : GHOST_kSuccess;
}

GHOST_TSuccess GHOST_Window::setCursorShape(GHOST_TStandardCursor cursorShape)
{
	if (setWindowCursorShape(cursorShape)) {
		m_cursorShape = cursorShape;
		return GHOST_kSuccess;
	}
	else {
		return GHOST_kFailure;
	}
}

GHOST_TSuccess GHOST_Window::setCustomCursorShape(GHOST_TUns8 bitmap[16][2], GHOST_TUns8 mask[16][2],
                                                  int hotX, int hotY)
{
	return setCustomCursorShape((GHOST_TUns8 *)bitmap, (GHOST_TUns8 *)mask,
	                            16, 16, hotX, hotY, 0, 1);
}

GHOST_TSuccess GHOST_Window::setCustomCursorShape(GHOST_TUns8 *bitmap, GHOST_TUns8 *mask, 
                                                  int sizex, int sizey, int hotX, int hotY,
                                                  int fg_color, int bg_color)
{
	if (setWindowCustomCursorShape(bitmap, mask, sizex, sizey, hotX, hotY, fg_color, bg_color)) {
		m_cursorShape = GHOST_kStandardCursorCustom;
		return GHOST_kSuccess;
	}
	else {
		return GHOST_kFailure;
	}
}

void GHOST_Window::setAcceptDragOperation(bool canAccept)
{
	m_canAcceptDragOperation = canAccept;
}

bool GHOST_Window::canAcceptDragOperation() const
{
	return m_canAcceptDragOperation;
}

GHOST_TSuccess GHOST_Window::setModifiedState(bool isUnsavedChanges)
{
	m_isUnsavedChanges = isUnsavedChanges;
	
	return GHOST_kSuccess;
}

bool GHOST_Window::getModifiedState()
{
	return m_isUnsavedChanges;
}