Re: [9fans] MacOS X drawterm doesn't toggle

["andrey mirtchovski" <mirtchovski@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1533 bytes --]

funny, looking in the archive it was exactly a year ago that i sent a
patch to fix this. the patch doesn't seem to have been applied. it
does two things: does ctrl+F for both full screen and full-screen-less
and fixes a bug when if one is using two unequal displays (larger
secondary) then drawterm won't be able to resize properly on the
bigger screen.

i've attached the screen.c to put in gui-osx. give it a try. other
changes with the current version in cvs (except the bugfixes) are only
cosmetic.

andrey

On Fri, Oct 17, 2008 at 9:47 PM, Michaelian Ennis
<michaelian.ennis@gmail.com> wrote:
> Should I just be using p9p drawterm?
>
> In the drawterm from "cvs.pdos.csail.mit.edu:/cvs co drawterm"
> Command-F doesn't toggle from fullscreen to windowed mode.  I pulled
> the latest from cvs and poked around at it for a little while but I
> can't figure out what the problem is.  I tried to alter the switch
> command on theHICommand.commandID to include this:
>
> case kFullScreenCmd:
>                        if (!amFullScreen)
>                                full_screen();
>                        else
>                                leave_full_screen();
>                        break;
>
> that didn't help. In addition this particular case looked like
> left-over code to me,
>
> switch(kind) {
>        case kEventRawKeyModifiersChanged:
>                if (macKeyModifiers == (controlKey | optionKey)) leave_full_screen();
>
> and Ctl-Opt does appears to work.
>
> Ian
>
>

[-- Attachment #2: screen.c --]
[-- Type: text/plain, Size: 19302 bytes --]

// in this file, _Rect is os x Rect,
// _Point is os x Point
#undef Point
#define Point _Point
#undef Rect
#define Rect _Rect

#include <Carbon/Carbon.h>
#include <QuickTime/QuickTime.h> // for full screen

#undef Rect
#undef Point

#undef nil


#include "u.h"
#include "lib.h"
#include "kern/dat.h"
#include "kern/fns.h"
#include "error.h"
#include "user.h"
#include <draw.h>
#include <memdraw.h>
#include "screen.h"
#include "keyboard.h"
#include "keycodes.h"

#define rWindowResource  128

#define topLeft(r)  (((Point *) &(r))[0])
#define botRight(r) (((Point *) &(r))[1])

extern int mousequeue;
static int depth;
Boolean   gDone;
RgnHandle gCursorRegionHdl;

Memimage	*gscreen;
Screeninfo	screen;

static int readybit;
static Rendez	rend;

///
// menu
//
static MenuRef windMenu;
static MenuRef viewMenu;
static Ptr fullScreenRestore;
static int amFullScreen;
static int fromMenu;
static WindowRef oldWindow = NULL;



enum {
	kQuitCmd = 1,
	kFullScreenCmd = 2,
};

static WindowGroupRef winGroup = NULL;
static WindowRef theWindow = NULL;
static CGContextRef context;
static CGDataProviderRef dataProviderRef;
static CGImageRef fullScreenImage;
static CGRect devRect;
static CGRect bounds;
static PasteboardRef appleclip;
static _Rect winRect;

Boolean altPressed = false;
Boolean button2 = false;
Boolean button3 = false;


static OSStatus MainWindowEventHandler(EventHandlerCallRef nextHandler, EventRef event, void *userData);
static OSStatus MainWindowCommandHandler(EventHandlerCallRef nextHandler, EventRef event, void *userData);
void winproc(void *a);


static int
isready(void*a)
{
	return readybit;
}

CGContextRef QuartzContext;


/* figure out which display is the largest and return its bounds so we can
 * preallocate drawterm's screen to that
 */
Point
get_largest_screen()
{
	CGDirectDisplayID 	*displaylist;
	CGDisplayCount 		displaycount;
	OSErr 				err;
	int i;
	Point max = Pt(0, 0);
	Point curr;
	err = CGGetActiveDisplayList(0, NULL, &displaycount);
	if(err != noErr)
		sysfatal("can not enumerate active displays");

	displaylist = (CGDirectDisplayID *)malloc(displaycount * sizeof(CGDirectDisplayID));
	if(displaylist == NULL)
		sysfatal("can not allocate memory for display list");

	err = CGGetActiveDisplayList(displaycount, displaylist, &displaycount);
	if(err != noErr)
		sysfatal("can not obtain active display list");

	for(i = 0; i < displaycount; i++) {
		curr.x = CGDisplayPixelsWide(displaylist[i]);
		curr.y = CGDisplayPixelsHigh(displaylist[i]);

		if(max.x < curr.x)
			max.x = curr.x;
		if(max.y < curr.y)
			max.y = curr.y;
	}

	free(displaylist);

	return max;

}

void 
screeninit(void)
{
	Point max;	/* the largest screen, if we have multiple */
	int fmt;

	ProcessSerialNumber psn = { 0, kCurrentProcess };
	TransformProcessType(&psn, kProcessTransformToForegroundApplication);
	SetFrontProcess(&psn);
	memimageinit();
	depth = 32; // That's all this code deals with for now
	screen.depth = 32;
	fmt = XBGR32; //XRGB32;

	max = get_largest_screen();
	devRect = CGDisplayBounds(CGMainDisplayID());

	gscreen = allocmemimage(Rect(0, 0, max.x, max.y), fmt);
	dataProviderRef = CGDataProviderCreateWithData(0, gscreen->data->bdata,
						max.x * max.y * 4, 0);
	fullScreenImage = CGImageCreate(max.x, max.y, 8, 32, max.x * 4,
				CGColorSpaceCreateDeviceRGB(),
				kCGImageAlphaNoneSkipLast,
				dataProviderRef, 0, 0, kCGRenderingIntentDefault);

	kproc("osxscreen", winproc, 0);
	ksleep(&rend, isready, 0);
}

void 
window_resized()
{
	GetWindowBounds(theWindow, kWindowContentRgn, &winRect );

	bounds = CGRectMake(0, 0, winRect.right-winRect.left, winRect.bottom - winRect.top);
}

void winproc(void *a)
{
	winRect.left = 30;
	winRect.top = 60;
	winRect.bottom = (devRect.size.height * 0.75) + winRect.top;
	winRect.right = (devRect.size.width * 0.75) + winRect.left;

	ClearMenuBar();
	InitCursor();

	CreateStandardWindowMenu(0, &windMenu);
	InsertMenu(windMenu, 0);

    MenuItemIndex index;
	CreateNewMenu(1004, 0, &viewMenu);
	SetMenuTitleWithCFString(viewMenu, CFSTR("View"));
	AppendMenuItemTextWithCFString(viewMenu, CFSTR("Enter Full Screen"), 0,
			kFullScreenCmd, &index);
	//SetMenuItemCommandKey(viewMenu, index, FALSE, 'F');
	InsertMenu(viewMenu, GetMenuID(windMenu));

	DrawMenuBar();
	uint32_t windowAttrs = 0
				| kWindowCloseBoxAttribute
				| kWindowCollapseBoxAttribute
				| kWindowResizableAttribute
				| kWindowStandardHandlerAttribute
				| kWindowFullZoomAttribute
		;

	CreateNewWindow(kDocumentWindowClass, windowAttrs, &winRect, &theWindow);
	CreateWindowGroup(0, &winGroup);
	SetWindowGroup(theWindow, winGroup);

	SetWindowTitleWithCFString(theWindow, CFSTR("Drawterm"));

	if(PasteboardCreate(kPasteboardClipboard, &appleclip) != noErr)
		sysfatal("pasteboard create failed");

	const EventTypeSpec commands[] = {
		{ kEventClassWindow, kEventWindowClosed },
		{ kEventClassWindow, kEventWindowBoundsChanged },
		{ kEventClassCommand, kEventCommandProcess }
	};
	const EventTypeSpec events[] = {
		{ kEventClassKeyboard, kEventRawKeyDown },
		{ kEventClassKeyboard, kEventRawKeyModifiersChanged },
		{ kEventClassKeyboard, kEventRawKeyRepeat },
		{ kEventClassMouse, kEventMouseDown },
		{ kEventClassMouse, kEventMouseUp },
		{ kEventClassMouse, kEventMouseMoved },
		{ kEventClassMouse, kEventMouseDragged },
		{ kEventClassMouse, kEventMouseWheelMoved },
	};

 	InstallApplicationEventHandler (
 								NewEventHandlerUPP (MainWindowEventHandler),
								GetEventTypeCount(events),
								events,
								NULL,
								NULL);
	InstallWindowEventHandler (
								theWindow,
								NewEventHandlerUPP (MainWindowCommandHandler),
								GetEventTypeCount(commands),
								commands,
								theWindow,
								NULL);

	ShowWindow(theWindow);
	ShowMenuBar();
	window_resized();
	SelectWindow(theWindow);
	terminit();
	// Run the event loop
	readybit = 1;
	wakeup(&rend);
	RunApplicationEventLoop();
}

static int 
convert_key(UInt32 key)
{
	switch(key) {
		case QZ_IBOOK_ENTER:
		case QZ_RETURN: return '\n';
		case QZ_ESCAPE: return 27;
		case QZ_BACKSPACE: return '\b';
		case QZ_LALT: return Kalt;
		case QZ_LCTRL: return Kctl;
		case QZ_LSHIFT: return Kshift;
		case QZ_F1: return KF+1;
		case QZ_F2: return KF+2;
		case QZ_F3: return KF+3;
		case QZ_F4: return KF+4;
		case QZ_F5: return KF+5;
		case QZ_F6: return KF+6;
		case QZ_F7: return KF+7;
		case QZ_F8: return KF+8;
		case QZ_F9: return KF+9;
		case QZ_F10: return KF+10;
		case QZ_F11: return KF+11;
		case QZ_F12: return KF+12;
		case QZ_INSERT: return Kins;
		case QZ_DELETE: return 0x7F;
		case QZ_HOME: return Khome;
		case QZ_END: return Kend;
		case QZ_KP_PLUS: return '+';
		case QZ_KP_MINUS: return '-';
		case QZ_TAB: return '\t';
		case QZ_PAGEUP: return Kpgup;
		case QZ_PAGEDOWN: return Kpgdown;
		case QZ_UP: return Kup;
		case QZ_DOWN: return Kdown;
		case QZ_LEFT: return Kleft;
		case QZ_RIGHT: return Kright;
		case QZ_KP_MULTIPLY: return '*';
		case QZ_KP_DIVIDE: return '/';
		case QZ_KP_ENTER: return '\n';
		case QZ_KP_PERIOD: return '.';
		case QZ_KP0: return '0';
		case QZ_KP1: return '1';
		case QZ_KP2: return '2';
		case QZ_KP3: return '3';
		case QZ_KP4: return '4';
		case QZ_KP5: return '5';
		case QZ_KP6: return '6';
		case QZ_KP7: return '7';
		case QZ_KP8: return '8';
		case QZ_KP9: return '9';
		default: return -1;
	}
}

void
sendbuttons(int b, int x, int y)
{
	int i;
	lock(&mouse.lk);
	i = mouse.wi;
	if(mousequeue) {
		if(i == mouse.ri || mouse.lastb != b || mouse.trans) {
			mouse.wi = (i+1)%Mousequeue;
			if(mouse.wi == mouse.ri)
				mouse.ri = (mouse.ri+1)%Mousequeue;
			mouse.trans = mouse.lastb != b;
		} else {
			i = (i-1+Mousequeue)%Mousequeue;
		}
	} else {
		mouse.wi = (i+1)%Mousequeue;
		mouse.ri = i;
	}
	mouse.queue[i].xy.x = x;
	mouse.queue[i].xy.y = y;
	mouse.queue[i].buttons = b;
	mouse.queue[i].msec = ticks();
	mouse.lastb = b;
	unlock(&mouse.lk);
	wakeup(&mouse.r);
}

static void
leave_full_screen()
{
	if (amFullScreen) {
		EndFullScreen(fullScreenRestore, 0);
		theWindow = oldWindow;
		ShowWindow(theWindow);
		amFullScreen = 0;
		window_resized();
		Rectangle rect =  { { 0, 0 },
 							{ bounds.size.width,
 							  bounds.size.height} };
		drawqlock();
 		flushmemscreen(rect);
 		drawqunlock();
	}
}

static void
full_screen()
{
	GDHandle device;
	if (!amFullScreen) {
		oldWindow = theWindow;
		HideWindow(theWindow);
		GetWindowGreatestAreaDevice(theWindow, kWindowTitleBarRgn, &device, NULL);
		BeginFullScreen(&fullScreenRestore, device, 0, 0, &theWindow, 0, 0);
		amFullScreen = 1;
		window_resized();
		Rectangle rect =  { { 0, 0 },
 							{ bounds.size.width,
 							  bounds.size.height} };
		drawqlock();
 		flushmemscreen(rect);
 		drawqunlock();
	} else {
		leave_full_screen();
	}
}

static OSStatus MainWindowEventHandler(EventHandlerCallRef nextHandler, EventRef event, void *userData)
{
	OSStatus result = noErr;
	result = CallNextEventHandler(nextHandler, event);
	UInt32 class = GetEventClass (event);
	UInt32 kind = GetEventKind (event);
	static uint32_t mousebuttons = 0; // bitmask of buttons currently down
	static uint32_t mouseX = 0; 
	static uint32_t mouseY = 0; 

	if(class == kEventClassKeyboard) {
		char macCharCodes;
		UInt32 macKeyCode;
		UInt32 macKeyModifiers;

		GetEventParameter(event, kEventParamKeyMacCharCodes, typeChar,
							NULL, sizeof(macCharCodes), NULL, &macCharCodes);
		GetEventParameter(event, kEventParamKeyCode, typeUInt32, NULL,
							sizeof(macKeyCode), NULL, &macKeyCode);
		GetEventParameter(event, kEventParamKeyModifiers, typeUInt32, NULL,
							sizeof(macKeyModifiers), NULL, &macKeyModifiers);
        switch(kind) {
		case kEventRawKeyModifiersChanged:
			switch(macKeyModifiers & (optionKey | cmdKey)) {
			case (optionKey | cmdKey):
				/* due to chording we need to handle the case when both
				 * modifier keys are pressed at the same time. 
				 * currently it's only 2-3 snarf and the 3-2 noop
				 */
				altPressed = true;
				if(mousebuttons & 1 || mousebuttons & 2 || mousebuttons & 4) {
					mousebuttons |= 2;	/* set button 2 */
					mousebuttons |= 4;	/* set button 3 */
					button2 = true;
					button3 = true;
					sendbuttons(mousebuttons, mouseX, mouseY);
				} 
				break;
			case optionKey:
				altPressed = true;
				if(mousebuttons & 1 || mousebuttons & 4) {
					mousebuttons |= 2;	/* set button 2 */
					button2 = true;
					sendbuttons(mousebuttons, mouseX, mouseY);
				} 
				break;
			case cmdKey:
				if(mousebuttons & 1 || mousebuttons & 2) {
					mousebuttons |= 4;	/* set button 3 */
					button3 = true;
					sendbuttons(mousebuttons, mouseX, mouseY);
				}
				break;
			case 0:
			default:
				if(button2 || button3) {
					if(button2) {
						mousebuttons &= ~2;	/* clear button 2 */
						button2 = false;
						altPressed = false;
					} 
					if(button3) {
						mousebuttons &= ~4;	/* clear button 3 */
						button3 = false;
					}
					sendbuttons(mousebuttons, mouseX, mouseY);
				}
				if(altPressed) {
					kbdputc(kbdq, Kalt);
					altPressed = false;
				} 
				break;
			}
			break;
		case kEventRawKeyDown:
		case kEventRawKeyRepeat:
			if(macKeyModifiers != cmdKey) {
				UniChar uc;
				int key = convert_key(macKeyCode);
				GetEventParameter(event, kEventParamKeyUnicodes, typeUnicodeText, NULL, sizeof(uc), NULL, &uc);

				if(key != -1)
					kbdputc(kbdq, key);
				else
					kbdputc(kbdq, uc);
			} else {
				if(macCharCodes == 'f' || macCharCodes == 'F') {
					full_screen();
				} else if(macCharCodes == 'q' || macCharCodes == 'Q') {
					exit(0);
				} 
			}
			break;

		default:
			break;
		}
	} else if(class == kEventClassMouse) {
		_Point mousePos;

		GetEventParameter(event, kEventParamMouseLocation, typeQDPoint,
							0, sizeof mousePos, 0, &mousePos);
		
		switch (kind) {
			case kEventMouseWheelMoved:
			{
			    int32_t wheeldelta;
				GetEventParameter(event,kEventParamMouseWheelDelta,typeSInt32,
									0,sizeof(wheeldelta), 0, &wheeldelta);
				mouseX = mousePos.h - winRect.left;
				mouseY = mousePos.v - winRect.top;
				sendbuttons(wheeldelta>0 ? 8 : 16, mouseX, mouseY);
				break;
			}
			case kEventMouseUp:
			case kEventMouseDown:
			{
				uint32_t buttons;
				uint32_t modifiers;
				GetEventParameter(event, kEventParamKeyModifiers, typeUInt32, 
									0, sizeof(modifiers), 0, &modifiers);
				GetEventParameter(event, kEventParamMouseChord, typeUInt32, 
									0, sizeof buttons, 0, &buttons);
				/* simulate other buttons via alt/apple key. like x11 */
				if(modifiers & optionKey) {
					mousebuttons = ((buttons & 1) ? 2 : 0);
					altPressed = false;
				} else if(modifiers & cmdKey)
					mousebuttons = ((buttons & 1) ? 4 : 0);
				else
					mousebuttons = (buttons & 1);

				mousebuttons |= ((buttons & 2)<<1);
				mousebuttons |= ((buttons & 4)>>1);

			} /* Fallthrough */
			case kEventMouseMoved:
			case kEventMouseDragged:
				mouseX = mousePos.h - winRect.left;
				mouseY = mousePos.v - winRect.top;
				sendbuttons(mousebuttons, mouseX, mouseY);
				break;
			default:
				result = eventNotHandledErr;
				break;
		}
	} 
	return result;
}


//default window command handler (from menus)
static OSStatus MainWindowCommandHandler(EventHandlerCallRef nextHandler,
					EventRef event, void *userData)
{
	OSStatus result = noErr;
	UInt32 class = GetEventClass (event);
	UInt32 kind = GetEventKind (event);

	result = CallNextEventHandler(nextHandler, event);

	if(class == kEventClassCommand)
	{
		HICommand theHICommand;
		GetEventParameter( event, kEventParamDirectObject, typeHICommand,
							NULL, sizeof( HICommand ), NULL, &theHICommand );

		switch ( theHICommand.commandID ) {
			case kHICommandQuit:
				exit(0);
				break;

			case kFullScreenCmd:
				/* since we won't see this event in full-screen mode we need
				 * to intercept keyboard clicks too (apple-F). 
				 */
				full_screen();
				break;

			default:
				result = eventNotHandledErr;
				break;
		}
	} else if(class == kEventClassWindow) {
		WindowRef		window;
		_Rect			rectPort = {0,0,0,0};

		GetEventParameter(event, kEventParamDirectObject, typeWindowRef,
							NULL, sizeof(WindowRef), NULL, &window);

		if(window)
			GetPortBounds(GetWindowPort(window), &rectPort);

		switch (kind) {
			case kEventWindowClosed:
				theWindow = NULL;
				exit(0);
				break;

			//resize window
			case kEventWindowBoundsChanged:
				window_resized();
				Rectangle rect =  { { 0, 0 },
 									{ bounds.size.width,
 									  bounds.size.height} };
				drawqlock();
 				flushmemscreen(rect);
 				drawqunlock();
				break;

			default:
				result = eventNotHandledErr;
				break;
		}
	}

	return result;
}

void
flushmemscreen(Rectangle r)
{
	// sanity check.  Trips from the initial "terminal"
    if (r.max.x < r.min.x || r.max.y < r.min.y) return;
    
	screenload(r, gscreen->depth, byteaddr(gscreen, ZP), ZP,
		gscreen->width*sizeof(ulong));
}

uchar*
attachscreen(Rectangle *r, ulong *chan, int *depth, int *width, int *softscreen, void **X)
{
	*r = gscreen->r;
	*chan = gscreen->chan;
	*depth = gscreen->depth;
	*width = gscreen->width;
	*softscreen = 1;

	return gscreen->data->bdata;
}

// PAL - no palette handling.  Don't intend to either.
void
getcolor(ulong i, ulong *r, ulong *g, ulong *b)
{

// PAL: Certainly wrong to return a grayscale.
	 *r = i;
	 *g = i;
	 *b = i;
}

void
setcolor(ulong index, ulong red, ulong green, ulong blue)
{
	assert(0);
}


static char snarf[3*SnarfSize+1];
static Rune rsnarf[SnarfSize+1];

char*
clipread(void)
{
	CFDataRef cfdata;
	OSStatus err = noErr;
	ItemCount nItems;

	// Wow.  This is ridiculously complicated.
	PasteboardSynchronize(appleclip);
	if((err = PasteboardGetItemCount(appleclip, &nItems)) != noErr) {
		fprintf(stderr, "apple pasteboard GetItemCount failed - Error %d\n", (int)err);
		return 0;
	}

	uint32_t i;
	// Yes, based at 1.  Silly API.
	for(i = 1; i <= nItems; ++i) {
		PasteboardItemID itemID;
		CFArrayRef flavorTypeArray;
		CFIndex flavorCount;

		if((err = PasteboardGetItemIdentifier(appleclip, i, &itemID)) != noErr){
			fprintf(stderr, "Can't get pasteboard item identifier: %d\n", (int)err);
			return 0;
		}

		if((err = PasteboardCopyItemFlavors(appleclip, itemID, &flavorTypeArray))!=noErr){
			fprintf(stderr, "Can't copy pasteboard item flavors: %d\n", (int)err);
			return 0;
		}

		flavorCount = CFArrayGetCount(flavorTypeArray);
		CFIndex flavorIndex;
		for(flavorIndex = 0; flavorIndex < flavorCount; ++flavorIndex){
			CFStringRef flavorType;
			flavorType = (CFStringRef)CFArrayGetValueAtIndex(flavorTypeArray, flavorIndex);
			if (UTTypeConformsTo(flavorType, CFSTR("public.utf16-plain-text"))){
				if((err = PasteboardCopyItemFlavorData(appleclip, itemID,
					CFSTR("public.utf16-plain-text"), &cfdata)) != noErr){
					fprintf(stderr, "apple pasteboard CopyItem failed - Error %d\n", (int)err);
					return 0;
				}
				CFIndex length = CFDataGetLength(cfdata);
				if (length > sizeof rsnarf) length = sizeof rsnarf;
				CFDataGetBytes(cfdata, CFRangeMake(0, length), (uint8_t *)rsnarf);
				snprint(snarf, sizeof snarf, "%.*S", length/sizeof(Rune), rsnarf);
				char *s = snarf;
				while (*s) {
					if (*s == '\r') *s = '\n';
					s++;
				}
				CFRelease(cfdata);
				return strdup(snarf);
			}
		}
	}
	return 0;
}

int
clipwrite(char *snarf)
{
	CFDataRef cfdata;
	PasteboardSyncFlags flags;

	runesnprint(rsnarf, nelem(rsnarf), "%s", snarf);
	if(PasteboardClear(appleclip) != noErr){
		fprintf(stderr, "apple pasteboard clear failed\n");
		return 0;
	}
	flags = PasteboardSynchronize(appleclip);
	if((flags&kPasteboardModified) || !(flags&kPasteboardClientIsOwner)){
		fprintf(stderr, "apple pasteboard cannot assert ownership\n");
		return 0;
	}
	cfdata = CFDataCreate(kCFAllocatorDefault, 
		(uchar*)rsnarf, runestrlen(rsnarf)*2);
	if(cfdata == nil){
		fprintf(stderr, "apple pasteboard cfdatacreate failed\n");
		return 0;
	}
	if(PasteboardPutItemFlavor(appleclip, (PasteboardItemID)1,
		CFSTR("public.utf16-plain-text"), cfdata, 0) != noErr){
		fprintf(stderr, "apple pasteboard putitem failed\n");
		CFRelease(cfdata);
		return 0;
	}
	CFRelease(cfdata);
	return 1;
}


void
mouseset(Point xy)
{
	CGPoint pnt;
	pnt.x = xy.x + winRect.left;
	pnt.y = xy.y + winRect.top;
	CGWarpMouseCursorPosition(pnt);
}

void
screenload(Rectangle r, int depth, uchar *p, Point pt, int step)
{
	CGRect rbounds;
	rbounds.size.width = r.max.x - r.min.x;
	rbounds.size.height = r.max.y - r.min.y;
	rbounds.origin.x = r.min.x;
	rbounds.origin.y = r.min.y;
		
	if(depth != gscreen->depth)
		panic("screenload: bad ldepth");
		
	QDBeginCGContext( GetWindowPort(theWindow), &context);
	
	// The sub-image is relative to our whole screen image.
	CGImageRef subimg = CGImageCreateWithImageInRect(fullScreenImage, rbounds);
	
	// Drawing the sub-image is relative to the window.
	rbounds.origin.y = winRect.bottom - winRect.top - r.min.y - rbounds.size.height;
	CGContextDrawImage(context, rbounds, subimg);
	CGContextFlush(context);
	CGImageRelease(subimg);
	QDEndCGContext( GetWindowPort(theWindow), &context);

}

void
setcursor(void)
{
    Cursor crsr;
    int i;
    
	for(i=0; i<16; i++){
		crsr.data[i] = ((ushort*)cursor.set)[i];
		crsr.mask[i] = crsr.data[i] | ((ushort*)cursor.clr)[i];
	}
	crsr.hotSpot.h = -cursor.offset.x;
	crsr.hotSpot.v = -cursor.offset.y;
	SetCursor(&crsr);
}

void
cursorarrow(void)
{
	InitCursor();
}