/*
 * SceneView.cpp
 *
 * Copyright (C) 1999 Stephen F. White
 * 
 * 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 (see the file "COPYING" for details); if 
 * not, write to the Free Software Foundation, Inc., 675 Mass Ave, 
 * Cambridge, MA 02139, USA.
 */

#include <stdlib.h>

#include "stdafx.h"

#include "swt.h"
#include "SceneView.h"
#include "Scene.h"
#include "resource.h"

static void	resizeCB(void *data, int width, int height);
static void	exposeCB(void *data, int x, int y, int width, int height);
static void	keyCB(void *data, int key, int value, int x, int y,
			    int modifiers);
static void	mouseCB(void *data, int x, int y, int modifiers);
static void	enterCB(void *data, int value);
static void	commandCB(void *data, int id);
static void	highlightCB(void *data, int id);
static void	closeCB(void *data);
static int	dropCB(void *data, int type, int x, int y, int modifiers);

SceneView::SceneView(Scene *scene, SWND wnd)
{
    _scene = scene;
    _scene->AddView(this);
    _wnd = wnd;

    swSetCommandCallback(wnd, commandCB);
    swSetHighlightCallback(wnd, highlightCB);
    swSetResizeCallback(wnd, resizeCB);
    swSetEnterCallback(wnd, enterCB);
    swSetExposeCallback(wnd, exposeCB);
    swSetKeyCallback(wnd, keyCB);
    swSetMouseCallback(wnd, mouseCB);
    swSetCloseCallback(wnd, closeCB);
    swSetClientData(wnd, this);
}

SceneView::~SceneView()
{
    if (destroySelf())
       swDestroyWindow(_wnd);
}

void
SceneView::RegisterDropTarget()
{
    swRegisterDropTarget(_wnd, dropCB);
}

void
SceneView::UnregisterDropTarget()
{
    swUnregisterDropTarget(_wnd);
}

static void
resizeCB(void *data, int width, int height)
{
    ((SceneView *) data)->OnSize(width, height);
}

static void
exposeCB(void *data, int x, int y, int width, int height)
{
    ((SceneView *) data)->OnDraw(x, y, width, height);
}

static void
keyCB(void *data, int key, int value,
	    int x, int y, int modifiers)
{
    if (key == SW_MOUSE1) {
	if (value) {
	    ((SceneView *) data)->OnLButtonDown(x, y, modifiers);
	} else {
	    ((SceneView *) data)->OnLButtonUp(x, y, modifiers);
	}
    } else if (key == SW_MOUSE2) {
	if (value) {
	    ((SceneView *) data)->OnMButtonDown(x, y, modifiers);
	} else {
	    ((SceneView *) data)->OnMButtonUp(x, y, modifiers);
	}
    } else if (key == SW_MOUSE3) {
	if (value) {
	    ((SceneView *) data)->OnRButtonDown(x, y, modifiers);
	} else {
	    ((SceneView *) data)->OnRButtonUp(x, y, modifiers);
	}
    } else if (value) {
	((SceneView *) data)->OnKeyDown(key, x, y, modifiers);
    } else {
	((SceneView *) data)->OnKeyUp(key, x, y, modifiers);
    }
}

static void
mouseCB(void *data, int x, int y, int modifiers)
{
    ((SceneView *) data)->OnMouseMove(x, y, modifiers);
}

static void
commandCB(void *data, int id)
{
    ((SceneView *) data)->OnCommand(id);
}

static void
highlightCB(void *data, int id)
{
    ((SceneView *) data)->OnHighlight(id);
}

static void
closeCB(void *data)
{
    ((SceneView *) data)->OnCommand(ID_FILE_CLOSE);
}

#include <stdio.h>

static void
enterCB(void *data, int value)
{
    if (value) {
	((SceneView *) data)->OnMouseEnter();
    } else {
	((SceneView *) data)->OnMouseLeave();
    }
}

static int
dropCB(void *data, int type, int x, int y, int modifiers)
{
    int		rc;

    switch (type) {
      case SW_DRAG_ENTER:
	rc = ((SceneView *) data)->OnDragEnter(x, y, modifiers);
	break;
      case SW_DRAG_OVER:
	rc = ((SceneView *) data)->OnDragOver(x, y, modifiers);
	break;
      case SW_DRAG_LEAVE:
	((SceneView *) data)->OnDragLeave();
	rc = 0;
	break;
      case SW_DROP:
	rc = ((SceneView *) data)->OnDrop(x, y, modifiers);
	break;
      default:
	rc = 0;
	break;
    }
    return rc;
}