/**
 * $Id: MultiTest.c,v 1.5 2003/05/01 19:52:17 sirdude Exp $
 * ***** BEGIN GPL/BL DUAL 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. The Blender
 * Foundation also sells licenses for use in proprietary software under
 * the Blender License.  See http://www.blender.org/BL/ for information
 * about this.
 *
 * 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., 59 Temple Place - Suite 330, Boston, MA  02111-1307, 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/BL DUAL LICENSE BLOCK *****
 */
#define FALSE 0

#ifdef WIN32

#pragma warning(disable: 4244 4305)
#endif

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <math.h>

#include "GL.h"

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include "MEM_guardedalloc.h"

#include "GHOST_C-api.h"
#include "BMF_Api.h"

#include "Util.h"
#include "Basic.h"
#include "ScrollBar.h"
#include "EventToBuf.h"

#include "WindowData.h"

/***/

typedef struct _MultiTestApp MultiTestApp;
typedef struct _LoggerWindow LoggerWindow;

void loggerwindow_log(LoggerWindow *lw, char *line);

void multitestapp_toggle_extra_window(MultiTestApp *app);
void multitestapp_free_extrawindow(MultiTestApp *app);
LoggerWindow *multitestapp_get_logger(MultiTestApp *app);
GHOST_SystemHandle multitestapp_get_system(MultiTestApp *app);
void multitestapp_exit(MultiTestApp *app);

/**/

void rect_bevel_side(int rect[2][2], int side, float *lt, float *dk, float *col, int width) {
	int ltidx= (side/2)%4;
	int dkidx= (ltidx + 1 + (side&1))%4;
	int i, corner;
	
	glBegin(GL_LINES);
	for (i=0; i<width; i++) {
		float ltf= pow(lt[i], 1.0/2.2), dkf= pow(dk[i], 1.0/2.2);
		float stf= (dkidx>ltidx)?dkf:ltf;
		int lx= rect[1][0]-i-1;
		int ly= rect[0][1]+i;
		
		glColor3f(col[0]*stf, col[1]*stf, col[2]*stf);
		for (corner=0; corner<4; corner++) {
			int x= (corner==0 || corner==1)?(rect[0][0]+i):(rect[1][0]-i-1);
			int y= (corner==0 || corner==3)?(rect[0][1]+i):(rect[1][1]-i-1);

			if (ltidx==corner)
				glColor3f(col[0]*ltf, col[1]*ltf, col[2]*ltf);
			if (dkidx==corner)
				glColor3f(col[0]*dkf, col[1]*dkf, col[2]*dkf);

			glVertex2i(lx, ly);
			glVertex2i(lx= x, ly= y);
		}
	}
	glEnd();
	
	glColor3fv(col);
	glRecti(rect[0][0]+width, rect[0][1]+width, rect[1][0]-width, rect[1][1]-width);
}

void rect_bevel_smooth(int rect[2][2], int width) {
	float *lt= malloc(sizeof(*lt)*width);
	float *dk= malloc(sizeof(*dk)*width);
	float col[4];
	int i;
	
	for (i=0; i<width; i++) {
		float v= width-1?((float) i/(width-1)):0;
		lt[i]= 1.2 + (1.0-1.2)*v;
		dk[i]= 0.2 + (1.0-0.2)*v;
	}
	
	glGetFloatv(GL_CURRENT_COLOR, col);
	
	rect_bevel_side(rect, 3, lt, dk, col, width);
	
	free(lt);
	free(dk);
}

	/*
	 * MainWindow
	 */

typedef struct {
	MultiTestApp		*app;

	GHOST_WindowHandle	win;
	
	int		size[2];
	
	int		lmouse[2], lmbut[3];
	
	int		tmouse[2];
} MainWindow;

static void mainwindow_log(MainWindow *mw, char *str) {
	loggerwindow_log(multitestapp_get_logger(mw->app), str);
}

static void mainwindow_do_draw(MainWindow *mw) {
	GHOST_ActivateWindowDrawingContext(mw->win);
	
	if (mw->lmbut[0]) {
		glClearColor(0.5, 0.5, 0.5, 1);
	} else {
		glClearColor(1, 1, 1, 1);
	}		
	glClear(GL_COLOR_BUFFER_BIT);
	
	glColor3f(0.5, 0.6, 0.8);
	glRecti(mw->tmouse[0]-5, mw->tmouse[1]-5, mw->tmouse[0]+5, mw->tmouse[1]+5);
	
	GHOST_SwapWindowBuffers(mw->win);
}

static void mainwindow_do_reshape(MainWindow *mw) {
	GHOST_RectangleHandle bounds= GHOST_GetClientBounds(mw->win);

	GHOST_ActivateWindowDrawingContext(mw->win);

	mw->size[0]= GHOST_GetWidthRectangle(bounds);
	mw->size[1]= GHOST_GetHeightRectangle(bounds);
	
	glViewport(0, 0, mw->size[0], mw->size[1]);

	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(0, mw->size[0], 0, mw->size[1], -1, 1);
	glTranslatef(0.375, 0.375, 0.0);

	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();
}

static void mainwindow_do_key(MainWindow *mw, GHOST_TKey key, int press) {
	switch(key) {
	case GHOST_kKeyC:
		if (press)
			GHOST_SetCursorShape(mw->win, (GHOST_TStandardCursor) (rand()%(GHOST_kStandardCursorNumCursors)));
		break;
	case GHOST_kKeyLeftBracket:
		if (press)
			GHOST_SetCursorVisibility(mw->win, 0);
		break;
	case GHOST_kKeyRightBracket:
		if (press)
			GHOST_SetCursorVisibility(mw->win, 1);
		break;
	case GHOST_kKeyE:
		if (press)
			multitestapp_toggle_extra_window(mw->app);
		break;
	case GHOST_kKeyQ:
		if (press)
			multitestapp_exit(mw->app);
		break;
	case GHOST_kKeyT:
		if (press)
			mainwindow_log(mw, "TextTest~|`hello`\"world\",<>/");
		break;
	case GHOST_kKeyR:
		if (press) {
			int i;
			
			mainwindow_log(mw, "Invalidating window 10 times");
			for (i=0; i<10; i++)
				GHOST_InvalidateWindow(mw->win);
		}
		break;
	case GHOST_kKeyF11:
		if (press) {
			GHOST_SetWindowOrder(mw->win, GHOST_kWindowOrderBottom);
		}
		break;
	}
}

static void mainwindow_do_move(MainWindow *mw, int x, int y) {
	mw->lmouse[0]= x, mw->lmouse[1]= y;
	
	if (mw->lmbut[0]) {
		mw->tmouse[0]= x, mw->tmouse[1]= y;
		GHOST_InvalidateWindow(mw->win);
	}
}

static void mainwindow_do_button(MainWindow *mw, int which, int press) {
	if (which==GHOST_kButtonMaskLeft) {
		mw->lmbut[0]= press;
		mw->tmouse[0]= mw->lmouse[0], mw->tmouse[1]= mw->lmouse[1];
		GHOST_InvalidateWindow(mw->win);
	} else if (which==GHOST_kButtonMaskLeft) {
		mw->lmbut[1]= press;
	} else if (which==GHOST_kButtonMaskLeft) {
		mw->lmbut[2]= press;
	}
}

static void mainwindow_handle(void *priv, GHOST_EventHandle evt) {
	MainWindow *mw= priv;
	GHOST_TEventType type= GHOST_GetEventType(evt);
	char buf[256];
	
	event_to_buf(evt, buf);
	mainwindow_log(mw, buf);
	
	switch (type) {
	case GHOST_kEventCursorMove: {
		GHOST_TEventCursorData *cd= GHOST_GetEventData(evt);
		int x, y;
		GHOST_ScreenToClient(mw->win, cd->x, cd->y, &x, &y);
		mainwindow_do_move(mw, x, mw->size[1]-y-1);
		break;
	}
	case GHOST_kEventButtonDown:
	case GHOST_kEventButtonUp: {
		GHOST_TEventButtonData *bd= GHOST_GetEventData(evt);
		mainwindow_do_button(mw, bd->button, (type == GHOST_kEventButtonDown));
		break;
	}
	case GHOST_kEventKeyDown:
	case GHOST_kEventKeyUp: {
		GHOST_TEventKeyData *kd= GHOST_GetEventData(evt);
		mainwindow_do_key(mw, kd->key, (type == GHOST_kEventKeyDown));
		break;
	}

	case GHOST_kEventWindowUpdate:
		mainwindow_do_draw(mw);
		break;
	case GHOST_kEventWindowSize:
		mainwindow_do_reshape(mw);
		break;
	}
}

/**/

static void mainwindow_timer_proc(GHOST_TimerTaskHandle task, GHOST_TUns64 time) {
	MainWindow *mw= GHOST_GetTimerTaskUserData(task);
	char buf[64];
	
	sprintf(buf, "timer: %6.2f", (double) ((GHOST_TInt64) time)/1000);
	mainwindow_log(mw, buf);
}

MainWindow *mainwindow_new(MultiTestApp *app) {
	GHOST_SystemHandle sys= multitestapp_get_system(app);
	GHOST_WindowHandle win;
	
	win= GHOST_CreateWindow(sys, "MultiTest:Main", 40, 40, 400, 400, 
		GHOST_kWindowStateNormal, GHOST_kDrawingContextTypeOpenGL, 
		FALSE);
	
	if (win) {
		MainWindow *mw= MEM_callocN(sizeof(*mw), "mainwindow_new");
		mw->app= app;
		mw->win= win;
		
		GHOST_SetWindowUserData(mw->win, windowdata_new(mw, mainwindow_handle));
		
		GHOST_InstallTimer(sys, 1000, 10000, mainwindow_timer_proc, mw);
		
		return mw;
	} else {
		return NULL;
	}
}

void mainwindow_free(MainWindow *mw) {
	GHOST_SystemHandle sys= multitestapp_get_system(mw->app);

	windowdata_free(GHOST_GetWindowUserData(mw->win));
	GHOST_DisposeWindow(sys, mw->win);
	MEM_freeN(mw);
}

	/*
	 * LoggerWindow
	 */

struct _LoggerWindow {
	MultiTestApp		*app;

	GHOST_WindowHandle	win;
	
	BMF_Font	*font;
	int			fonttexid;
	int			fontheight;
	
	int			size[2];
	
	int			ndisplines;
	int			textarea[2][2];
	ScrollBar	*scroll;
	
	char		**loglines;
	int			nloglines, logsize;
	
	int			lmbut[3];
	int			lmouse[2];
};

#define SCROLLBAR_PAD 2
#define SCROLLBAR_WIDTH 14
#define TEXTAREA_PAD 2
static void loggerwindow_recalc_regions(LoggerWindow *lw) {
	int nscroll[2][2];
	
	nscroll[0][0]= SCROLLBAR_PAD;
	nscroll[0][1]= SCROLLBAR_PAD;
	nscroll[1][0]= nscroll[0][0] + SCROLLBAR_WIDTH;
	nscroll[1][1]= lw->size[1] - SCROLLBAR_PAD - 1;

	lw->textarea[0][0]= nscroll[1][0] + TEXTAREA_PAD;
	lw->textarea[0][1]= TEXTAREA_PAD;
	lw->textarea[1][0]= lw->size[0] - TEXTAREA_PAD - 1;
	lw->textarea[1][1]= lw->size[1] - TEXTAREA_PAD - 1;

	lw->ndisplines= (lw->textarea[1][1]-lw->textarea[0][1])/lw->fontheight;

	scrollbar_set_thumbpct(lw->scroll, (float) lw->ndisplines/lw->nloglines);
	scrollbar_set_rect(lw->scroll, nscroll);
}

static void loggerwindow_setup_window_gl(LoggerWindow *lw) {
	glViewport(0, 0, lw->size[0], lw->size[1]);

	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(0, lw->size[0], 0, lw->size[1], -1, 1);
	glTranslatef(0.375, 0.375, 0.0);

	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();
}

static void loggerwindow_do_reshape(LoggerWindow *lw) {
	GHOST_RectangleHandle bounds= GHOST_GetClientBounds(lw->win);

	GHOST_ActivateWindowDrawingContext(lw->win);
	
	lw->size[0]= GHOST_GetWidthRectangle(bounds);
	lw->size[1]= GHOST_GetHeightRectangle(bounds);
	
	loggerwindow_recalc_regions(lw);
	loggerwindow_setup_window_gl(lw);
}

static void loggerwindow_do_draw(LoggerWindow *lw) {
	int i, ndisplines, startline;
	int sb_rect[2][2], sb_thumb[2][2];
		
	GHOST_ActivateWindowDrawingContext(lw->win);
	
	glClearColor(1, 1, 1, 1);
	glClear(GL_COLOR_BUFFER_BIT);

	glColor3f(0.8, 0.8, 0.8);
	rect_bevel_smooth(lw->textarea, 4);
	
	scrollbar_get_rect(lw->scroll, sb_rect);
	scrollbar_get_thumb(lw->scroll, sb_thumb);
	
	glColor3f(0.6, 0.6, 0.6);
	rect_bevel_smooth(sb_rect, 1);
	
	if (scrollbar_is_scrolling(lw->scroll)) {
		glColor3f(0.6, 0.7, 0.5);
	} else {
		glColor3f(0.9, 0.9, 0.92);
	}
	rect_bevel_smooth(sb_thumb, 1);
	
	startline= scrollbar_get_thumbpos(lw->scroll)*(lw->nloglines-1);
	ndisplines= min_i(lw->ndisplines, lw->nloglines-startline);

	if (lw->fonttexid!=-1) {
		glBindTexture(GL_TEXTURE_2D, lw->fonttexid);
		
		glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
		glEnable(GL_BLEND);
		glEnable(GL_TEXTURE_2D);		
	}
	glColor3f(0, 0, 0);
	for (i=0; i<ndisplines; i++) {
			/* stored in reverse order */
		char *line= lw->loglines[(lw->nloglines-1)-(i+startline)];
		int x_pos= lw->textarea[0][0] + 4;
		int y_pos= lw->textarea[0][1] + 4 + i*lw->fontheight;
		
		if (lw->fonttexid==-1) {
			glRasterPos2i(x_pos, y_pos);
			BMF_DrawString(lw->font, line);
		} else {
			BMF_DrawStringTexture(lw->font, line, x_pos, y_pos, 0.0);
		}
	}
	if (lw->fonttexid!=-1) {
		glDisable(GL_TEXTURE_2D);		
		glDisable(GL_BLEND);
	}

	GHOST_SwapWindowBuffers(lw->win);
}

static void loggerwindow_do_move(LoggerWindow *lw, int x, int y) {
	lw->lmouse[0]= x, lw->lmouse[1]= y;
	
	if (scrollbar_is_scrolling(lw->scroll)) {
		scrollbar_keep_scrolling(lw->scroll, y);
		GHOST_InvalidateWindow(lw->win);
	}
}

static void loggerwindow_do_button(LoggerWindow *lw, int which, int press) {
	if (which==GHOST_kButtonMaskLeft) {
		lw->lmbut[0]= press;
		
		if (press) {
			if (scrollbar_contains_pt(lw->scroll, lw->lmouse)) {
				scrollbar_start_scrolling(lw->scroll, lw->lmouse[1]);				
				GHOST_SetCursorShape(lw->win, GHOST_kStandardCursorUpDown);
				GHOST_InvalidateWindow(lw->win);
			}
		} else {
			if (scrollbar_is_scrolling(lw->scroll)) {
				scrollbar_stop_scrolling(lw->scroll);
				GHOST_SetCursorShape(lw->win, GHOST_kStandardCursorDefault);
				GHOST_InvalidateWindow(lw->win);
			}
		}
	} else if (which==GHOST_kButtonMaskMiddle) {
		lw->lmbut[1]= press;
	} else if (which==GHOST_kButtonMaskRight) {
		lw->lmbut[2]= press;
	}
}

static void loggerwindow_do_key(LoggerWindow *lw, GHOST_TKey key, int press) {
	switch (key) {
	case GHOST_kKeyQ:
		if (press)
			multitestapp_exit(lw->app);
		break;
	}
}

static void loggerwindow_handle(void *priv, GHOST_EventHandle evt) {
	LoggerWindow *lw= priv;
	GHOST_TEventType type= GHOST_GetEventType(evt);
	
	switch(type) {
	case GHOST_kEventCursorMove: {
		GHOST_TEventCursorData *cd= GHOST_GetEventData(evt);
		int x, y;
		GHOST_ScreenToClient(lw->win, cd->x, cd->y, &x, &y);
		loggerwindow_do_move(lw, x, lw->size[1]-y-1);
		break;
	}
	case GHOST_kEventButtonDown:
	case GHOST_kEventButtonUp: {
		GHOST_TEventButtonData *bd= GHOST_GetEventData(evt);
		loggerwindow_do_button(lw, bd->button, (type == GHOST_kEventButtonDown));
		break;
	}
	case GHOST_kEventKeyDown:
	case GHOST_kEventKeyUp: {
		GHOST_TEventKeyData *kd= GHOST_GetEventData(evt);
		loggerwindow_do_key(lw, kd->key, (type == GHOST_kEventKeyDown));
		break;
	}
		
	case GHOST_kEventWindowUpdate:
		loggerwindow_do_draw(lw);
		break;
	case GHOST_kEventWindowSize:
		loggerwindow_do_reshape(lw);
		break;
	}
}

/**/

LoggerWindow *loggerwindow_new(MultiTestApp *app) {
	GHOST_SystemHandle sys= multitestapp_get_system(app);
	GHOST_TUns32 screensize[2];
	GHOST_WindowHandle win;
	
	GHOST_GetMainDisplayDimensions(sys, &screensize[0], &screensize[1]);
	win= GHOST_CreateWindow(sys, "MultiTest:Logger", 40, screensize[1]-432,
		800, 300, GHOST_kWindowStateNormal, 
		GHOST_kDrawingContextTypeOpenGL, FALSE);
	
	if (win) {
		LoggerWindow *lw= MEM_callocN(sizeof(*lw), "loggerwindow_new");
		int bbox[2][2];
		lw->app= app;
		lw->win= win;
		
		lw->font= BMF_GetFont(BMF_kScreen12);
		lw->fonttexid= BMF_GetFontTexture(lw->font);

		BMF_GetBoundingBox(lw->font, &bbox[0][0], &bbox[0][1], &bbox[1][0], &bbox[1][1]);
		lw->fontheight= rect_height(bbox);
		
		lw->nloglines= lw->logsize= 0;
		lw->loglines= MEM_mallocN(sizeof(*lw->loglines)*lw->nloglines, "loglines");
		
		lw->scroll= scrollbar_new(2, 40);
		
		GHOST_SetWindowUserData(lw->win, windowdata_new(lw, loggerwindow_handle));

		loggerwindow_do_reshape(lw);

		return lw;
	} else {
		return NULL;
	}
}

void loggerwindow_log(LoggerWindow *lw, char *line) {
	if (lw->nloglines==lw->logsize) {
		lw->loglines= memdbl(lw->loglines, &lw->logsize, sizeof(*lw->loglines));
	}
	
	lw->loglines[lw->nloglines++]= string_dup(line);
	scrollbar_set_thumbpct(lw->scroll, (float) lw->ndisplines/lw->nloglines);
	
	GHOST_InvalidateWindow(lw->win);
}

void loggerwindow_free(LoggerWindow *lw) {
	GHOST_SystemHandle sys= multitestapp_get_system(lw->app);
	int i;

	for (i=0; i<lw->nloglines; i++) {
		MEM_freeN(lw->loglines[i]);
	}
	MEM_freeN(lw->loglines);
	
	windowdata_free(GHOST_GetWindowUserData(lw->win));
	GHOST_DisposeWindow(sys, lw->win);
	MEM_freeN(lw);
}

	/*
	 * ExtraWindow
	 */


typedef struct {
	MultiTestApp		*app;

	GHOST_WindowHandle	win;
	
	int		size[2];
} ExtraWindow;

static void extrawindow_do_draw(ExtraWindow *ew) {
	GHOST_ActivateWindowDrawingContext(ew->win);

	glClearColor(1, 1, 1, 1);
	glClear(GL_COLOR_BUFFER_BIT);
	
	glColor3f(0.8, 0.8, 0.8);
	glRecti(10, 10, ew->size[0]-10, ew->size[1]-10);
	
	GHOST_SwapWindowBuffers(ew->win);
}

static void extrawindow_do_reshape(ExtraWindow *ew) {
	GHOST_RectangleHandle bounds= GHOST_GetClientBounds(ew->win);

	GHOST_ActivateWindowDrawingContext(ew->win);

	ew->size[0]= GHOST_GetWidthRectangle(bounds);
	ew->size[1]= GHOST_GetHeightRectangle(bounds);
	
	glViewport(0, 0, ew->size[0], ew->size[1]);

	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(0, ew->size[0], 0, ew->size[1], -1, 1);
	glTranslatef(0.375, 0.375, 0.0);

	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();
}

static void extrawindow_do_key(ExtraWindow *ew, GHOST_TKey key, int press) {
	switch (key) {
	case GHOST_kKeyE:
		if (press)
			multitestapp_toggle_extra_window(ew->app);
		break;
	}
}

static void extrawindow_spin_cursor(ExtraWindow *ew, GHOST_TUns64 time) {
	GHOST_TUns8 bitmap[16][2];
	GHOST_TUns8 mask[16][2];
	double ftime= (double) ((GHOST_TInt64) time)/1000;
	float angle= fmod(ftime, 1.0) * 3.1415*2;
	int i;
	
	memset(&bitmap, 0, sizeof(bitmap));
	memset(&mask, 0, sizeof(mask));
	
	bitmap[0][0] |= mask[0][0] |= 0xF;
	bitmap[1][0] |= mask[1][0] |= 0xF;
	bitmap[2][0] |= mask[2][0] |= 0xF;
	bitmap[3][0] |= mask[3][0] |= 0xF;
	
	for (i=0; i<7; i++) {
		int x = 7 + cos(angle)*i;
		int y = 7 + sin(angle)*i;
		
		mask[y][x/8] |= (1 << (x%8));
	}
	for (i=0; i<64; i++) {
		float v= (i/63.0) * 3.1415*2;
		int x = 7 + cos(v)*7;
		int y = 7 + sin(v)*7;
		
		mask[y][x/8] |= (1 << (x%8));
	}
	
	GHOST_SetCustomCursorShape(ew->win, bitmap, mask, 0, 0);
}

static void extrawindow_handle(void *priv, GHOST_EventHandle evt) {
	ExtraWindow *ew= priv;
	GHOST_TEventType type= GHOST_GetEventType(evt);
	char buf[256];
	
	event_to_buf(evt, buf);
	loggerwindow_log(multitestapp_get_logger(ew->app), buf);
	
	switch (type) {
	case GHOST_kEventKeyDown:
	case GHOST_kEventKeyUp: {
		GHOST_TEventKeyData *kd= GHOST_GetEventData(evt);
		extrawindow_do_key(ew, kd->key, (type == GHOST_kEventKeyDown));
		break;
	}

	case GHOST_kEventCursorMove: {
		extrawindow_spin_cursor(ew, GHOST_GetEventTime(evt));
		break;
	}
	
	case GHOST_kEventWindowClose:
		multitestapp_free_extrawindow(ew->app);
		break;
	case GHOST_kEventWindowUpdate:
		extrawindow_do_draw(ew);
		break;
	case GHOST_kEventWindowSize:
		extrawindow_do_reshape(ew);
		break;
	}
}

/**/

ExtraWindow *extrawindow_new(MultiTestApp *app) {
	GHOST_SystemHandle sys= multitestapp_get_system(app);
	GHOST_WindowHandle win;
	
	win= GHOST_CreateWindow(sys, "MultiTest:Extra", 500, 40, 400, 400, 
		GHOST_kWindowStateNormal, GHOST_kDrawingContextTypeOpenGL,
		FALSE);
	
	if (win) {
		ExtraWindow *ew= MEM_callocN(sizeof(*ew), "mainwindow_new");
		ew->app= app;
		ew->win= win;
		
		GHOST_SetWindowUserData(ew->win, windowdata_new(ew, extrawindow_handle));
		
		return ew;
	} else {
		return NULL;
	}
}

void extrawindow_free(ExtraWindow *ew) {
	GHOST_SystemHandle sys= multitestapp_get_system(ew->app);

	windowdata_free(GHOST_GetWindowUserData(ew->win));
	GHOST_DisposeWindow(sys, ew->win);
	MEM_freeN(ew);
}

	/*
	 * MultiTestApp
	 */
	
struct _MultiTestApp {
	GHOST_SystemHandle	sys;
	MainWindow			*main;
	LoggerWindow		*logger;
	ExtraWindow			*extra;
	
	int					exit;
};

static int multitest_event_handler(GHOST_EventHandle evt, GHOST_TUserDataPtr data) {
	MultiTestApp *app= data;
	GHOST_WindowHandle win;
	
	win= GHOST_GetEventWindow(evt);
	if (win && !GHOST_ValidWindow(app->sys, win)) {
		loggerwindow_log(app->logger, "WARNING: bad event, non-valid window\n");
		return 1;
	}
		
	if (win) {
		WindowData *wb= GHOST_GetWindowUserData(win);
		
		windowdata_handle(wb, evt);
	} else {
		GHOST_TEventType type= GHOST_GetEventType(evt);
		
			/* GHOST_kEventQuit are the only 'system' events,
			 * that is, events without a window.
			 */
		switch(type) {
		case GHOST_kEventQuit:
			app->exit= 1;
			break;
			
		default:
			fatal("Unhandled system event: %d (%s)\n", type, eventtype_to_string(type));
			break;
		}
	}
	
	return 1;
}

/**/

MultiTestApp *multitestapp_new(void) {
	MultiTestApp *app= MEM_mallocN(sizeof(*app), "multitestapp_new");
	GHOST_EventConsumerHandle consumer= GHOST_CreateEventConsumer(multitest_event_handler, app);
	
	app->sys= GHOST_CreateSystem();
	if (!app->sys)
		fatal("Unable to create ghost system");

	if (!GHOST_AddEventConsumer(app->sys, consumer))	
		fatal("Unable to add multitest event consumer ");
		
	app->main= mainwindow_new(app);
	if (!app->main) 
		fatal("Unable to create main window");
		
	app->logger= loggerwindow_new(app);
	if (!app->logger)
		fatal("Unable to create logger window");

	app->extra= NULL;		
	app->exit= 0;
	
	return app;
}

LoggerWindow *multitestapp_get_logger(MultiTestApp *app) {
	return app->logger;	
}

GHOST_SystemHandle multitestapp_get_system(MultiTestApp *app) {
	return app->sys;
}

void multitestapp_free_extrawindow(MultiTestApp *app) {
	extrawindow_free(app->extra);
	app->extra= NULL;
}

void multitestapp_toggle_extra_window(MultiTestApp *app) {
	if (app->extra) {
		multitestapp_free_extrawindow(app);
	} else {
		app->extra= extrawindow_new(app);
	}
}

void multitestapp_exit(MultiTestApp *app) {
	app->exit= 1;
}

void multitestapp_run(MultiTestApp *app) {
	while (!app->exit) {
		GHOST_ProcessEvents(app->sys, 1);
		GHOST_DispatchEvents(app->sys);
	}
}

void multitestapp_free(MultiTestApp *app) {
	mainwindow_free(app->main);
	loggerwindow_free(app->logger);
	GHOST_DisposeSystem(app->sys);
	MEM_freeN(app);
}

	/***/
	
int main(int argc, char **argv) {
	MultiTestApp *app= multitestapp_new();
	
	multitestapp_run(app);
	multitestapp_free(app);
	
	return 0;
}
