ggiglut.c

mesa-6.5-minigui源码

static void mousemove(void)
{
	GGIGLUTDPRINT_CORE("mousemove() called\n");

	if (mouse_moved) {
		if (__glut_motion && mouse_down) {
			__glut_motion(mousex,mousey);
		}
		
		if (__glut_passive_motion && (!mouse_down)) {
			__glut_passive_motion(mousex,mousey);
		}
		
		if (__glut_menuactive) updatemouse();
		mouse_moved=GL_FALSE;
	}
}

static void button(ggi_event *ev)
{
	int i;
	int btn[4] = {
		0,
		GLUT_LEFT_BUTTON,
		GLUT_RIGHT_BUTTON,
		GLUT_MIDDLE_BUTTON
	};
	
	GGIGLUTDPRINT_CORE("button() called\n");
	
	mousemove();
	
	if (ev->pbutton.button <= 3) { /* GGI can have >3 buttons ! */ 
		char state = ev->any.type == evPtrButtonPress ? GLUT_DOWN : GLUT_UP;
		if (__glut_menuactive) {
			if (state == GLUT_UP && clickmenu()) {
				glutPostRedisplay();
				__glut_menuactive = GL_FALSE;
			}
		} else
		  if (btn[ev->pbutton.button] == __glut_menubutton) {
			  __glut_menuactive = GL_TRUE;
			  activemenu = mainmenu;
			  showmenu();
		  } else 
		  if (__glut_mouse) {
			  __glut_mouse(btn[ev->pbutton.button], state, mousex, mousey);
		  }
		if (state == GLUT_DOWN) {
			mouse_down |= (1 << (ev->pbutton.button - 1));
		}
		else mouse_down &= ~( 1 << (ev->pbutton.button - 1));
	}
}

void glutMainLoop(void)
{
	ggi_event ev;
	ggi_event_mask evmask = (emKeyPress | emKeyRepeat | emPtrMove | emPtrButton);

	GGIGLUTDPRINT_CORE("glutMainLoop() called\n");

	ggiSetEventMask(__glut_vis, evmask);

	glutPostRedisplay();
	
	if (__glut_visibility) 
	  __glut_visibility(GLUT_VISIBLE);
	
	while (1) 
	{
		if (!__glut_menuactive) 
		{
			if (__glut_idle) 
			  __glut_idle();
			if (__glut_redisplay && __glut_display) 
			{
				__glut_redisplay = GL_FALSE;
				__glut_display();
			}
		}
		
		while (1) 
		{
			struct timeval t = {0, 0};
			
			if (ggiEventPoll(__glut_vis, evmask, &t) == 0) 
			  break;
			
			ggiEventRead(__glut_vis, &ev, evmask);
      
			switch (ev.any.type) 
			{
				case evKeyPress:
				case evKeyRepeat:
				keyboard(&ev);
				break;
				case evPtrAbsolute:
				mouseabs(&ev);
				break;
				case evPtrRelative:
				mouse(&ev);
				break;
				case evPtrButtonPress:
				case evPtrButtonRelease:
				button(&ev);
				break;
			}
		}
		mousemove();
	}
}

static void showmenu()
{
	int y,i;
	ggi_color col = { 0xffff, 0xffff, 0xffff };
	
	GGIGLUTDPRINT_CORE("showmenu() called\n");
	
	ggiSetGCForeground(__glut_vis,ggiMapColor(__glut_vis,&col));
	ggiSetOrigin(__glut_vis,0,0);
	
	for (y = i = 0; i < activemenu->num_entries; i++, y += 8) {
		ggiPuts(__glut_vis, 0, y, activemenu->label[i]);
	}
	drawmouse();
}

static int clickmenu(void)
{
	int i;
	int w, h;
  
	GGIGLUTDPRINT_CORE("clickmenu() called\n");
	
	i = mousey / 8;
  
	if (i >= activemenu->num_entries) return GL_TRUE;
	if (mousex >= 8 * strlen(activemenu->label[i])) return GL_TRUE;
  
	if (activemenu->submenu[i]) {
		ggi_color col={0,0,0};
		ggiSetGCForeground(__glut_vis,ggiMapColor(__glut_vis,&col));
		h=activemenu->num_entries*8;
		w=activemenu->max_strlen*8;
		ggiDrawBox(__glut_vis,0,0,w,h);
		activemenu=activemenu->submenu[i];
		showmenu();
		return GL_FALSE;
	}
	curmenu=activemenu;
	activemenu->func(activemenu->value[i]);
	return GL_TRUE;
}

static int oldx=-1;
static int oldy=-1;
static char buffer[16*16*4];

static void updatemouse()
{
	GGIGLUTDPRINT_CORE("updatemouse() called\n");

	ggiPutBox(__glut_vis,oldx,oldy,16,16,buffer);
	drawmouse();
}

static void drawmouse()
{
	int x,y;
	
	GGIGLUTDPRINT_CORE("drawmouse() called\n");
	
	x=mousex-8;
	if (x<0) x=0;
	y=mousey-8;
	if (y<0) y=0;
	ggiGetBox(__glut_vis,x,y,16,16,buffer);
	ggiDrawLine(__glut_vis,mousex-2,mousey,mousex+2,mousey);
	ggiDrawLine(__glut_vis,mousex,mousey-2,mousex,mousey+2);
	oldx=x;
	oldy=y;
}

int glutCreateMenu(void(*func)(int))
{
	menu_t *m;
	
	GGIGLUTDPRINT_CORE("glutCreateMenu() called\n");
	
	m=malloc(sizeof(menu_t));
	memset(m,0,sizeof(menu_t));
	curmenu=m;
	curmenu->func=func;
	return (int)curmenu;
}

static void addEntry(const char *label,int value,menu_t *submenu)
{
	int i=curmenu->num_entries;
	
	GGIGLUTDPRINT_CORE("addEntry() called\n");
	
	/* printf("%i %i %s %p\n",i,value,label,submenu); */
	if (i<MAX_ENTRIES) {
		curmenu->label[i]=strdup(label);
		curmenu->value[i]=value;
		curmenu->submenu[i]=submenu;
    
		if (strlen(label)>curmenu->max_strlen)
		  curmenu->max_strlen=strlen(label);
		curmenu->num_entries++;
	}
}

void glutAddMenuEntry(const char *label,int value)
{
	GGIGLUTDPRINT_CORE("glutAddMenuEntry() called\n");

	addEntry(label,value,NULL);
}

void glutAddSubMenu(const char *label,int submenu)
{
	char text[100];
	
	GGIGLUTDPRINT_CORE("glutAddSubMenu() called\n");
	
	if (!curmenu) return;
	strncpy(text,label,98);
	text[98]=0;
	text[strlen(text)+1]=0;
	text[strlen(text)]='>';
	
	addEntry(text,0,(menu_t *) submenu);
}

void glutAttachMenu(int button)
{
	GGIGLUTDPRINT_CORE("glutAttachMenu() called\n");

	mainmenu=curmenu;
	__glut_menubutton=button;
}

void glutDetachMenu(int button)
{
	GGIGLUTDPRINT_CORE("glutDetachMenu() called\n");
}

void glutVisibilityFunc(void (*func)(int state))
{
	GGIGLUTDPRINT_CORE("glutVisibilityFunc() called\n");

	__glut_visibility=func;
}

void glutMouseFunc(void (*mouse)(int, int, int, int))
{
	GGIGLUTDPRINT_CORE("glutMouseFunc() called\n");
	
	__glut_mouse=mouse;	
}

void glutMotionFunc(void (*motion)(int,int))
{
	GGIGLUTDPRINT_CORE("glutMotionFunc() called\n");
	
	__glut_motion=motion;
}

void glutPassiveMotionFunc(void (*motion)(int,int))
{
	GGIGLUTDPRINT_CORE("glutPassiveMotionFunc() called\n");
	
	__glut_passive_motion=motion;
}

void glutSetWindowTitle(const char *title)
{
	GGIGLUTDPRINT_CORE("glutSetWindowTitle() called\n");
}

void glutSetIconTitle(const char *title)
{
	GGIGLUTDPRINT_CORE("glutSetIconTitle() called\n");
}

void glutChangeToMenuEntry(int item,const char *label,int value)
{
	GGIGLUTDPRINT_CORE("glutChangeToMenuEntry() called\n");

	if (item>0 && item<=curmenu->num_entries) {
		item--;
		free(curmenu->label[item]);
		curmenu->label[item]=strdup(label);
		curmenu->value[item]=value;
		curmenu->submenu[item]=NULL;
	}
}
void glutChangeToSubMenu(int item,const char *label,int submenu)
{
	GGIGLUTDPRINT_CORE("glutChengeToSubMenu() called\n");
	
	if (item>0 && item<=curmenu->num_entries) {
		item--;
		free(curmenu->label[item]);
		curmenu->label[item]=strdup(label);
		curmenu->value[item]=0;
		curmenu->submenu[item]=(menu_t *)submenu;
	}
}

void glutDestroyMenu(int menu)
{
	menu_t *m=(menu_t *)menu;
	int i;
	
	GGIGLUTDPRINT_CORE("glutDestroyMenu() called\n");
	
	for (i=0;i<m->num_entries;i++) {
		free(m->label[i]);
	}
	free(m);
}

int glutCreateSubWindow(int win,int x,int y,int w,int h)
{
	GGIGLUTDPRINT_CORE("glutCreateSubWindow() called\n");

	return 0;
}

void glutDestroyWindow(int win)
{
	GGIGLUTDPRINT_CORE("glutDestroyWindow() called\n");
}

int glutGetWindow(void)
{
	GGIGLUTDPRINT_CORE("glutGetWindow() called\n");
	
	return 0;
}

void glutSetWindow(int win)
{
	GGIGLUTDPRINT_CORE("glutSetWindow() called\n");
}

void glutPositionWindow(int x,int y)
{
	GGIGLUTDPRINT_CORE("glutPositionWindow() called\n");
}

void glutReshapeWindow(int x,int y)
{
	GGIGLUTDPRINT_CORE("glutReshapeWindow() called\n");
}

void glutPushWindow(void)
{
	GGIGLUTDPRINT_CORE("glutPushWindow() called\n");
}

void glutPopWindow(void)
{
	GGIGLUTDPRINT_CORE("glutPopWindow() called\n");
}

void glutIconifyWindow(void)
{
	GGIGLUTDPRINT_CORE("glutIconifyWindow() called\n");
}

void glutShowWindow()
{
	GGIGLUTDPRINT_CORE("glutShowWindow() called\n");
}

void glutHideWindow()
{
	GGIGLUTDPRINT_CORE("glutHideWindow() called\n");
}

void glutSetCursor(int cursor)
{
	GGIGLUTDPRINT_CORE("glutSetCursor() called\n");
}

void glutWarpPointer(int x,int y)
{
	GGIGLUTDPRINT_CORE("glutWarpPointer() called\n");
}

void glutEstablishOverlay(void)
{
	GGIGLUTDPRINT_CORE("glutEstablishOverlay() called\n");
}

void glutRemoveOverlay(void)
{
	GGIGLUTDPRINT_CORE("glutRemoveOverlay() called\n");
}

void glutUseLayer(GLenum layer)
{
	GGIGLUTDPRINT_CORE("glutUseLayer() called\n");
}

int glutLayerGet(GLenum type)
{
	GGIGLUTDPRINT_CORE("glutLayerGet() called\n");
	return 0;
}

void glutPostOverlayRedisplay(void)
{
	GGIGLUTDPRINT_CORE("glutPostOverlayRedisplay() called\n");
}

void glutPostWindowOverlayRedisplay(int w)
{
	GGIGLUTDPRINT_CORE("glutPostWindowOverlayRedisplay() called\n");
}

void glutShowOverlay(void)
{
	GGIGLUTDPRINT_CORE("glutShowOverlay() called\n");
}

void glutHideOverlay(void)
{
	GGIGLUTDPRINT_CORE("glutHideOverlay() called\n");
}

int glutGetMenu(void)
{
	GGIGLUTDPRINT_CORE("glutGetMenu() called\n");
	return 0;
}

void glutSetMenu(int menu)
{
	GGIGLUTDPRINT_CORE("glutSetMenu() called\n");
}

void glutRemoveMenuItem(int item)
{
	GGIGLUTDPRINT_CORE("glutRemoveMenuItem() called\n");
}

void glutSpaceBallMotionFunc(void (*func)(int key,int x,int y))
{
	GGIGLUTDPRINT_CORE("glutSpaceBallMotionFunc() called\n");
}

void glutSpaceBallRotateFunc(void (*func)(int x,int y,int z))
{
	GGIGLUTDPRINT_CORE("glutSpaceBallRotateFunc() called\n");
}

void glutSpaceBallButtonFunc(void (*func)(int button,int state))
{
	GGIGLUTDPRINT_CORE("glutSpaceBallButtonFunc() called\n");
}

void glutCopyColormap(int win)
{
	GGIGLUTDPRINT_CORE("glutCopyColormap() called\n");
}

int glutDeviceGet(GLenum param)
{
	GGIGLUTDPRINT_CORE("glutDeviceGet() called\n");
	
	return 0;
}