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tkMacOSXXStubs.c
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tkMacOSXXStubs.c
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/*
* tkMacOSXXStubs.c --
*
* This file contains most of the X calls called by Tk. Many of
* these calls are just stubs and either don't make sense on the
* Macintosh or thier implamentation just doesn't do anything. Other
* calls will eventually be moved into other files.
*
* Copyright (c) 1995-1997 Sun Microsystems, Inc.
* Copyright 2001, Apple Computer, Inc.
* Copyright (c) 2005-2007 Daniel A. Steffen <das@users.sourceforge.net>
*
* See the file "license.terms" for information on usage and redistribution
* of this file, and for a DISCLAIMER OF ALL WARRANTIES.
*/
#include "tkMacOSXPrivate.h"
#include "tkMacOSXEvent.h"
#if 0
#include <IOKit/IOKitLib.h>
#endif
/*
* Because this file is still under major development Debugger statements are
* used through out this file. The define TCL_DEBUG will decide whether
* the debugger statements actually call the debugger or not.
*/
#ifndef TCL_DEBUG
# define Debugger()
#endif
#define ROOT_ID 10
/*
* Declarations of static variables used in this file.
*/
static TkDisplay *gMacDisplay = NULL; /* Macintosh display. */
static const char *macScreenName = ":0"; /* Default name of macintosh display. */
/*
* Forward declarations of procedures used in this file.
*/
static XID MacXIdAlloc(Display *display);
static int DefaultErrorHandler(Display* display, XErrorEvent* err_evt);
/*
* Other declarations
*/
static int DestroyImage(XImage *image);
static unsigned long ImageGetPixel(XImage *image, int x, int y);
static int PutPixel(XImage *image, int x, int y, unsigned long pixel);
#if 0
static XImage *SubImage(XImage *image, int x, int y,
unsigned int width, unsigned int height);
static int AddPixel(XImage *image, long value);
#endif
/*
*----------------------------------------------------------------------
*
* TkMacOSXDisplayChanged --
*
* Called to set up initial screen info or when an event indicated
* display (screen) change.
*
* Results:
* None.
*
* Side effects:
* May change info regarding the screen.
*
*----------------------------------------------------------------------
*/
void
TkMacOSXDisplayChanged(Display *display)
{
GDHandle graphicsDevice;
Screen *screen;
Rect bounds = {0, 0, 0, 0}, *maxBounds;
if (display == NULL || display->screens == NULL) {
return;
}
screen = display->screens;
graphicsDevice = GetMainDevice();
screen->root_depth = (*(*graphicsDevice)->gdPMap)->cmpSize *
(*(*graphicsDevice)->gdPMap)->cmpCount;
screen->height = (*graphicsDevice)->gdRect.bottom -
(*graphicsDevice)->gdRect.top;
screen->width = (*graphicsDevice)->gdRect.right -
(*graphicsDevice)->gdRect.left;
screen->mwidth = (screen->width * 254 + 360) / 720;
screen->mheight = (screen->height * 254 + 360) / 720;
maxBounds = (Rect*) screen->ext_data;
*maxBounds = bounds;
graphicsDevice = GetDeviceList();
while (graphicsDevice) {
OSStatus err;
err = ChkErr(GetAvailableWindowPositioningBounds, graphicsDevice,
&bounds);
if (err == noErr) {
UnionRect(&bounds, maxBounds, maxBounds);
}
graphicsDevice = GetNextDevice(graphicsDevice);
}
}
/*
*----------------------------------------------------------------------
*
* TkpOpenDisplay --
*
* Create the Display structure and fill it with device
* specific information.
*
* Results:
* Returns a Display structure on success or NULL on failure.
*
* Side effects:
* Allocates a new Display structure.
*
*----------------------------------------------------------------------
*/
TkDisplay *
TkpOpenDisplay(
CONST char *display_name)
{
Display *display;
Screen *screen;
int fd = 0;
static Rect maxBounds = {0, 0, 0, 0};
if (gMacDisplay != NULL) {
if (strcmp(gMacDisplay->display->display_name, display_name) == 0) {
return gMacDisplay;
} else {
return NULL;
}
}
display = (Display *) ckalloc(sizeof(Display));
screen = (Screen *) ckalloc(sizeof(Screen));
bzero(display, sizeof(Display));
bzero(screen, sizeof(Screen));
display->resource_alloc = MacXIdAlloc;
display->request = 0;
display->qlen = 0;
display->fd = fd;
display->screens = screen;
display->nscreens = 1;
display->default_screen = 0;
display->display_name = (char*)macScreenName;
Gestalt(gestaltQuickdrawVersion, (long*)&display->proto_minor_version);
display->proto_major_version = 10;
display->proto_minor_version -= gestaltMacOSXQD;
display->vendor = "Apple";
Gestalt(gestaltSystemVersion, (long*)&display->release);
/*
* These screen bits never change
*/
screen->root = ROOT_ID;
screen->display = display;
screen->black_pixel = 0x00000000 | PIXEL_MAGIC << 24;
screen->white_pixel = 0x00FFFFFF | PIXEL_MAGIC << 24;
screen->ext_data = (XExtData*) &maxBounds;
screen->root_visual = (Visual *) ckalloc(sizeof(Visual));
screen->root_visual->visualid = 0;
screen->root_visual->class = TrueColor;
screen->root_visual->red_mask = 0x00FF0000;
screen->root_visual->green_mask = 0x0000FF00;
screen->root_visual->blue_mask = 0x000000FF;
screen->root_visual->bits_per_rgb = 24;
screen->root_visual->map_entries = 256;
/*
* Initialize screen bits that may change
*/
TkMacOSXDisplayChanged(display);
gMacDisplay = (TkDisplay *) ckalloc(sizeof(TkDisplay));
/*
* This is the quickest way to make sure that all the *Init
* flags get properly initialized
*/
bzero(gMacDisplay, sizeof(TkDisplay));
gMacDisplay->display = display;
return gMacDisplay;
}
/*
*----------------------------------------------------------------------
*
* TkpCloseDisplay --
*
* Deallocates a display structure created by TkpOpenDisplay.
*
* Results:
* None.
*
* Side effects:
* Frees memory.
*
*----------------------------------------------------------------------
*/
void
TkpCloseDisplay(
TkDisplay *displayPtr)
{
Display *display = displayPtr->display;
if (gMacDisplay != displayPtr) {
Tcl_Panic("TkpCloseDisplay: tried to call TkpCloseDisplay on bad display");
}
gMacDisplay = NULL;
if (display->screens != (Screen *) NULL) {
if (display->screens->root_visual != (Visual *) NULL) {
ckfree((char *) display->screens->root_visual);
}
ckfree((char *) display->screens);
}
ckfree((char *) display);
}
/*
*----------------------------------------------------------------------
*
* TkClipCleanup --
*
* This procedure is called to cleanup resources associated with
* claiming clipboard ownership and for receiving selection get
* results. This function is called in tkWindow.c. This has to be
* called by the display cleanup function because we still need the
* access display elements.
*
* Results:
* None.
*
* Side effects:
* Resources are freed - the clipboard may no longer be used.
*
*----------------------------------------------------------------------
*/
void
TkClipCleanup(dispPtr)
TkDisplay *dispPtr; /* display associated with clipboard */
{
/*
* Make sure that the local scrap is transfered to the global
* scrap if needed.
*/
TkSuspendClipboard();
if (dispPtr->clipWindow != NULL) {
Tk_DeleteSelHandler(dispPtr->clipWindow, dispPtr->clipboardAtom,
dispPtr->applicationAtom);
Tk_DeleteSelHandler(dispPtr->clipWindow, dispPtr->clipboardAtom,
dispPtr->windowAtom);
Tk_DestroyWindow(dispPtr->clipWindow);
Tcl_Release((ClientData) dispPtr->clipWindow);
dispPtr->clipWindow = NULL;
}
}
/*
*----------------------------------------------------------------------
*
* MacXIdAlloc --
*
* This procedure is invoked by Xlib as the resource allocator
* for a display.
*
* Results:
* The return value is an X resource identifier that isn't currently
* in use.
*
* Side effects:
* The identifier is removed from the stack of free identifiers,
* if it was previously on the stack.
*
*----------------------------------------------------------------------
*/
static XID
MacXIdAlloc(
Display *display) /* Display for which to allocate. */
{
static long int cur_id = 100;
/*
* Some special XIds are reserved
* - this is why we start at 100
*/
return ++cur_id;
}
/*
*----------------------------------------------------------------------
*
* TkpWindowWasRecentlyDeleted --
*
* Tries to determine whether the given window was recently deleted.
* Called from the generic code error handler to attempt to deal with
* async BadWindow errors under some circumstances.
*
* Results:
* Always 0, we do not keep this information on the Mac, so we do not
* know whether the window was destroyed.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
int
TkpWindowWasRecentlyDeleted(
Window win,
TkDisplay *dispPtr)
{
return 0;
}
/*
*----------------------------------------------------------------------
*
* DefaultErrorHandler --
*
* This procedure is the default X error handler. Tk uses it's
* own error handler so this call should never be called.
*
* Results:
* None.
*
* Side effects:
* This function will call panic and exit.
*
*----------------------------------------------------------------------
*/
static int
DefaultErrorHandler(
Display* display,
XErrorEvent* err_evt)
{
/*
* This call should never be called. Tk replaces
* it with its own error handler.
*/
Tcl_Panic("Warning hit bogus error handler!");
return 0;
}
char *
XGetAtomName(
Display * display,
Atom atom)
{
display->request++;
return NULL;
}
int
_XInitImageFuncPtrs(XImage *image)
{
return 0;
}
XErrorHandler
XSetErrorHandler(
XErrorHandler handler)
{
return DefaultErrorHandler;
}
Window
XRootWindow(Display *display, int screen_number)
{
display->request++;
return ROOT_ID;
}
int
XGetGeometry(display, d, root_return, x_return, y_return, width_return,
height_return, border_width_return, depth_return)
Display* display;
Drawable d;
Window* root_return;
int* x_return;
int* y_return;
unsigned int* width_return;
unsigned int* height_return;
unsigned int* border_width_return;
unsigned int* depth_return;
{
TkWindow *winPtr = ((MacDrawable *) d)->winPtr;
display->request++;
*root_return = ROOT_ID;
if (winPtr) {
*x_return = Tk_X(winPtr);
*y_return = Tk_Y(winPtr);
*width_return = Tk_Width(winPtr);
*height_return = Tk_Height(winPtr);
*border_width_return = winPtr->changes.border_width;
*depth_return = Tk_Depth(winPtr);
} else {
Rect boundsRect;
CGrafPtr destPort = TkMacOSXGetDrawablePort(d);
GetPortBounds(destPort, &boundsRect);
*x_return = boundsRect.left;
*y_return = boundsRect.top;
*width_return = boundsRect.right - boundsRect.left;
*height_return = boundsRect.bottom - boundsRect.top;
*border_width_return = 0;
*depth_return = 32;
}
return 1;
}
void
XChangeProperty(
Display* display,
Window w,
Atom property,
Atom type,
int format,
int mode,
_Xconst unsigned char* data,
int nelements)
{
Debugger();
}
void
XSelectInput(
Display* display,
Window w,
long event_mask)
{
Debugger();
}
int
XBell(
Display* display,
int percent)
{
SysBeep(percent);
return Success;
}
#if 0
void
XSetWMNormalHints(
Display* display,
Window w,
XSizeHints* hints)
{
/*
* Do nothing. Shouldn't even be called.
*/
}
XSizeHints *
XAllocSizeHints(void)
{
/*
* Always return NULL. Tk code checks to see if NULL
* is returned & does nothing if it is.
*/
return NULL;
}
#endif
GContext
XGContextFromGC(
GC gc)
{
/*
* TODO: currently a no-op
*/
return 0;
}
Status
XSendEvent(
Display* display,
Window w,
Bool propagate,
long event_mask,
XEvent* event_send)
{
Debugger();
return 0;
}
void
XClearWindow(
Display* display,
Window w)
{
}
/*
void
XDrawPoint(
Display* display,
Drawable d,
GC gc,
int x,
int y)
{
}
void
XDrawPoints(
Display* display,
Drawable d,
GC gc,
XPoint* points,
int npoints,
int mode)
{
}
*/
int
XWarpPointer(
Display* display,
Window src_w,
Window dest_w,
int src_x,
int src_y,
unsigned int src_width,
unsigned int src_height,
int dest_x,
int dest_y)
{
return Success;
}
void
XQueryColor(
Display* display,
Colormap colormap,
XColor* def_in_out)
{
unsigned long p;
unsigned char r, g, b;
XColor *d = def_in_out;
p = d->pixel;
r = (p & 0x00FF0000) >> 16;
g = (p & 0x0000FF00) >> 8;
b = (p & 0x000000FF);
d->red = (r << 8) | r;
d->green = (g << 8) | g;
d->blue = (b << 8) | b;
d->flags = DoRed|DoGreen|DoBlue;
d->pad = 0;
}
void
XQueryColors(
Display* display,
Colormap colormap,
XColor* defs_in_out,
int ncolors)
{
int i;
unsigned long p;
unsigned char r, g, b;
XColor *d = defs_in_out;
for (i = 0; i < ncolors; i++, d++) {
p = d->pixel;
r = (p & 0x00FF0000) >> 16;
g = (p & 0x0000FF00) >> 8;
b = (p & 0x000000FF);
d->red = (r << 8) | r;
d->green = (g << 8) | g;
d->blue = (b << 8) | b;
d->flags = DoRed|DoGreen|DoBlue;
d->pad = 0;
}
}
int
XQueryTree(display, w, root_return, parent_return, children_return,
nchildren_return)
Display* display;
Window w;
Window* root_return;
Window* parent_return;
Window** children_return;
unsigned int* nchildren_return;
{
return 0;
}
int
XGetWindowProperty(
Display *display,
Window w,
Atom property,
long long_offset,
long long_length,
Bool delete,
Atom req_type,
Atom *actual_type_return,
int *actual_format_return,
unsigned long *nitems_return,
unsigned long *bytes_after_return,
unsigned char ** prop_return)
{
display->request++;
*actual_type_return = None;
*actual_format_return = *bytes_after_return = 0;
*nitems_return = 0;
return 0;
}
void
XRefreshKeyboardMapping( XMappingEvent* x)
{
/* used by tkXEvent.c */
Debugger();
}
void
XSetIconName(
Display* display,
Window w,
const char *icon_name)
{
/*
* This is a no-op, no icon name for Macs.
*/
display->request++;
}
void
XForceScreenSaver(
Display* display,
int mode)
{
/*
* This function is just a no-op. It is defined to
* reset the screen saver. However, there is no real
* way to do this on a Mac. Let me know if there is!
*/
display->request++;
}
void
Tk_FreeXId(
Display *display,
XID xid)
{
/* no-op function needed for stubs implementation. */
}
int
XSync(
Display *display,
Bool flag)
{
TkMacOSXFlushWindows();
display->request++;
return 0;
}
#if 0
int
XSetClipRectangles(
Display *d,
GC gc,
int clip_x_origin,
int clip_y_origin,
XRectangle* rectangles,
int n,
int ordering)
{
TkRegion clipRgn = TkCreateRegion();
while (n--) {
XRectangle rect = *rectangles;
rect.x += clip_x_origin;
rect.y += clip_y_origin;
TkUnionRectWithRegion(&rect, clipRgn, clipRgn);
rectangles++;
}
TkSetRegion(d, gc, clipRgn);
TkDestroyRegion(clipRgn);
return 1;
}
#endif
/*
*----------------------------------------------------------------------
*
* TkGetServerInfo --
*
* Given a window, this procedure returns information about
* the window server for that window. This procedure provides
* the guts of the "winfo server" command.
*
* Results:
* None.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
void
TkGetServerInfo(
Tcl_Interp *interp, /* The server information is returned in
* this interpreter's result. */
Tk_Window tkwin) /* Token for window; this selects a
* particular display and server. */
{
char buffer[8 + TCL_INTEGER_SPACE * 2];
char buffer2[TCL_INTEGER_SPACE];
sprintf(buffer, "QD%dR%x ", ProtocolVersion(Tk_Display(tkwin)),
ProtocolRevision(Tk_Display(tkwin)));
sprintf(buffer2, " %x", VendorRelease(Tk_Display(tkwin)));
Tcl_AppendResult(interp, buffer, ServerVendor(Tk_Display(tkwin)),
buffer2, NULL);
}
#pragma mark XImage handling
/*
*----------------------------------------------------------------------
*
* XCreateImage --
*
* Allocates storage for a new XImage.
*
* Results:
* Returns a newly allocated XImage.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
XImage *
XCreateImage(
Display* display,
Visual* visual,
unsigned int depth,
int format,
int offset,
char* data,
unsigned int width,
unsigned int height,
int bitmap_pad,
int bytes_per_line)
{
XImage *ximage;
display->request++;
ximage = (XImage *) ckalloc(sizeof(XImage));
ximage->height = height;
ximage->width = width;
ximage->depth = depth;
ximage->xoffset = offset;
ximage->format = format;
ximage->data = data;
if (format == ZPixmap) {
ximage->bits_per_pixel = 32;
ximage->bitmap_unit = 32;
} else {
ximage->bits_per_pixel = 1;
ximage->bitmap_unit = 8;
}
if (bitmap_pad) {
ximage->bitmap_pad = bitmap_pad;
} else {
/* Use 16 byte alignment for best Quartz perfomance */
ximage->bitmap_pad = 128;
}
if (bytes_per_line) {
ximage->bytes_per_line = bytes_per_line;
} else {
ximage->bytes_per_line = ((width * ximage->bits_per_pixel +
(ximage->bitmap_pad - 1)) >> 3) &
~((ximage->bitmap_pad >> 3) - 1);
}
#ifdef WORDS_BIGENDIAN
ximage->byte_order = MSBFirst;
ximage->bitmap_bit_order = MSBFirst;
#else
ximage->byte_order = LSBFirst;
ximage->bitmap_bit_order = LSBFirst;
#endif
ximage->red_mask = 0x00FF0000;
ximage->green_mask = 0x0000FF00;
ximage->blue_mask = 0x000000FF;
ximage->obdata = NULL;
ximage->f.create_image = NULL;
ximage->f.destroy_image = DestroyImage;
ximage->f.get_pixel = ImageGetPixel;
ximage->f.put_pixel = PutPixel;
ximage->f.sub_image = NULL;
ximage->f.add_pixel = NULL;
return ximage;
}
/*
*----------------------------------------------------------------------
*
* XGetImage --
*
* This function copies data from a pixmap or window into an XImage.
*
* Results:
* Returns a newly allocated image containing the data from the given
* rectangle of the given drawable.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
XImage *
XGetImage(
Display *display,
Drawable d,
int x,
int y,
unsigned int width,
unsigned int height,
unsigned long plane_mask,
int format)
{
XImage * imagePtr = NULL;
Pixmap pixmap = (Pixmap) NULL;
Tk_Window win = (Tk_Window) ((MacDrawable *) d)->winPtr;
GC gc;
int depth = 32;
int offset = 0;
int bitmap_pad = 32;
int bytes_per_line = 0;
if (TkMacOSXGetDrawablePort(d)) {
if (format == ZPixmap) {
if (width > 0 && height > 0) {
/* Tk_GetPixmap fails for zero width or height */
pixmap = Tk_GetPixmap(display, d, width, height, depth);
}
if (win) {
XGCValues values;
gc = Tk_GetGC(win, 0, &values);
} else {
gc = XCreateGC(display, pixmap, 0, NULL);
}
if (pixmap) {
XCopyArea(display, d, pixmap, gc, x, y, width, height, 0, 0);
}
imagePtr = XCreateImage(display, NULL, depth, format, offset,
(char*)TkMacOSXGetDrawablePort(pixmap),
width, height, bitmap_pad, bytes_per_line);
/* Track Pixmap underlying the XImage in the unused obdata field *
* so that we can treat XImages coming from XGetImage specially. */
imagePtr->obdata = (XPointer) pixmap;
if (!win) {
XFreeGC(display, gc);
}
} else {
TkpDisplayWarning(
"XGetImage: only ZPixmap types are implemented",
"XGetImage Failure");
}
}
return imagePtr;
}
/*
*----------------------------------------------------------------------
*
* DestroyImage --
*
* Destroys storage associated with an image.
*
* Results:
* None.
*
* Side effects:
* Deallocates the image.
*
*----------------------------------------------------------------------
*/
static int
DestroyImage(
XImage *image)
{
if (image) {
if (image->obdata) {
Tk_FreePixmap((Display*) gMacDisplay, (Pixmap) image->obdata);
} else if (image->data) {
ckfree(image->data);
}
ckfree((char*) image);
}
return 0;
}
/*
*----------------------------------------------------------------------
*
* ImageGetPixel --
*
* Get a single pixel from an image.
*
* Results:
* Returns the 32 bit pixel value.
*
* Side effects:
* None.
*
*----------------------------------------------------------------------
*/
static unsigned long
ImageGetPixel(
XImage *image,
int x,
int y)
{
CGrafPtr destPort, savePort;
Boolean portChanged;
RGBColor cPix;
unsigned long r, g, b, c;
destPort = (CGrafPtr)image->data;
portChanged = QDSwapPort(destPort, &savePort);
GetCPixel(x, y, &cPix);
if (image->obdata) {
/* Image from XGetImage, 16 bit color values */
r = (cPix . red) >> 8;
g = (cPix . green) >> 8;
b = (cPix . blue) >> 8;
} else {
r = cPix . red;
g = cPix . green;
b = cPix . blue;
}
c = (r<<16)|(g<<8)|(b);
if (portChanged) {
QDSwapPort(savePort, NULL);
}
return c;
}
/*
*----------------------------------------------------------------------
*
* PutPixel --
*
* Set a single pixel in an image.
*
* Results: