# import <UIKit/UIKit.h>
# import <UIKit/UIScreen.h>
# import <QuartzCore/QuartzCore.h>
+# import <CoreText/CTFont.h>
# define NSView UIView
# define NSRect CGRect
# define NSPoint CGPoint
#import "jwxyz.h"
#import "jwxyz-timers.h"
+#import "yarandom.h"
#undef Assert
-#define Assert(C,S) do { \
- if (!(C)) { \
- NSLog(@"%s",S); \
- abort(); \
- }} while(0)
+#define Assert(C,S) do { if (!(C)) jwxyz_abort ("%s",(S)); } while(0)
# undef MAX
# undef MIN
};
+/* Instead of calling abort(), throw a real exception, so that
+ XScreenSaverView can catch it and display a dialog.
+ */
+void
+jwxyz_abort (const char *fmt, ...)
+{
+ char s[10240];
+ if (!fmt || !*fmt)
+ strcpy (s, "abort");
+ else
+ {
+ va_list args;
+ va_start (args, fmt);
+ vsprintf (s, fmt, args);
+ va_end (args);
+ }
+ [[NSException exceptionWithName: NSInternalInconsistencyException
+ reason: [NSString stringWithCString: s
+ encoding:NSUTF8StringEncoding]
+ userInfo: nil]
+ raise];
+ abort(); // not reached
+}
+
+
Display *
jwxyz_make_display (void *nsview_arg, void *cgc_arg)
{
CGContextRef cgc = (CGContextRef) cgc_arg;
NSView *view = (NSView *) nsview_arg;
- if (!view) abort();
+ Assert (view, "no view");
+ if (!view) return 0;
Display *d = (Display *) calloc (1, sizeof(*d));
d->screen = (Screen *) calloc (1, sizeof(Screen));
case GXxor: CGContextSetBlendMode (cgc, kCGBlendModeDifference); break;
case GXor: CGContextSetBlendMode (cgc, kCGBlendModeLighten); break;
case GXand: CGContextSetBlendMode (cgc, kCGBlendModeDarken); break;
- default: abort(); break;
+ default: Assert(0, "unknown gcv function"); break;
}
if (gc->gcv.clip_mask)
// No cgi means src == dst, and both are Windows.
# ifdef USE_IPHONE
- abort(); // No NSCopyBits on iOS, but shouldn't be reached anyway.
+ Assert (0, "NSCopyBits unimplemented"); // shouldn't be reached anyway
+ return 0;
# else // !USE_IPHONE
NSRect nsfrom;
nsfrom.origin.x = src_rect.origin.x; // NSRect != CGRect on 10.4
set_gcv (GC gc, XGCValues *from, unsigned long mask)
{
if (! mask) return;
- if (! gc) abort();
- if (! from) abort();
+ Assert (gc && from, "no gc");
+ if (!gc || !from) return;
if (mask & GCFunction) gc->gcv.function = from->function;
if (mask & GCForeground) gc->gcv.foreground = from->foreground;
if (mask & GCBackground) validate_pixel (from->background, gc->depth,
gc->gcv.alpha_allowed_p);
- if (mask & GCLineStyle) abort();
- if (mask & GCPlaneMask) abort();
- if (mask & GCFillStyle) abort();
- if (mask & GCTile) abort();
- if (mask & GCStipple) abort();
- if (mask & GCTileStipXOrigin) abort();
- if (mask & GCTileStipYOrigin) abort();
- if (mask & GCGraphicsExposures) abort();
- if (mask & GCDashOffset) abort();
- if (mask & GCDashList) abort();
- if (mask & GCArcMode) abort();
+ Assert ((! (mask & (GCLineStyle |
+ GCPlaneMask |
+ GCFillStyle |
+ GCTile |
+ GCStipple |
+ GCTileStipXOrigin |
+ GCTileStipYOrigin |
+ GCGraphicsExposures |
+ GCDashOffset |
+ GCDashList |
+ GCArcMode))),
+ "unimplemented gcvalues mask");
}
ximage->f.put_pixel = ximage_putpixel_32;
ximage->f.get_pixel = ximage_getpixel_32;
} else {
- abort();
+ Assert (0, "unknown depth");
}
return 1;
}
query_font (Font fid)
{
if (!fid || !fid->nsfont) {
- NSLog(@"no NSFont in fid");
- abort();
+ Assert (0, "no NSFont in fid");
+ return;
}
if (![fid->nsfont fontName]) {
- NSLog(@"broken NSFont in fid");
- abort();
+ Assert(0, @"broken NSFont in fid");
+ return;
}
int first = 32;
# ifndef USE_IPHONE
NSBezierPath *bpath = [NSBezierPath bezierPath];
-# endif
+# else // USE_IPHONE
+ CTFontRef ctfont =
+ CTFontCreateWithName ((CFStringRef) [fid->nsfont fontName],
+ [fid->nsfont pointSize],
+ NULL);
+ Assert (ctfont, @"no CTFontRef for UIFont");
+# endif // USE_IPHONE
for (i = first; i <= last; i++) {
unsigned char str[2];
NSString *nsstr = [NSString stringWithCString:(char *) str
encoding:NSISOLatin1StringEncoding];
- NSPoint advancement;
- NSRect bbox;
+ NSPoint advancement = { 0, };
+ NSRect bbox = {{ 0, }, };
# ifndef USE_IPHONE
# else // USE_IPHONE
- UIFont *ff = fid->nsfont;
- CGSize size = [nsstr sizeWithFont:ff];
-
- /* sizeWithFont gives us a character's "width" and "height".
- There is no way to get a character's "lbearing", "rbearing",
- or "descent". We do have the font's overall "descent", though.
-
- drawAtPoint (to an offscreen CGContext) returns "width" and the
- "ascent" of the font (not of the glyph, I think) so that doesn't
- help.
+ /* There is no way to get "lbearing", "rbearing" or "descent" out of
+ NSFont. 'sizeWithFont' gives us "width" and "height" only.
+ Likewise, 'drawAtPoint' (to an offscreen CGContext) gives us the
+ width of the character and the ascent of the font.
- CGFontGetGlyphBBoxes might help (if it actually returns a bounding
- box and not just the ascent/width again, which I don't know) but
- we can't use it anyway because there is no way to map a unichar to
- a CGGlyph.
-
- Fuck you sideways, Apple.
+ Maybe we could use CGFontGetGlyphBBoxes() and avoid linking in
+ the CoreText library, but there's no non-CoreText way to turn a
+ unichar into a CGGlyph.
*/
-
- bbox.origin.x = 0;
- bbox.origin.y = [ff descender];
- bbox.size.width = size.width;
- bbox.size.height = size.height;
-
- advancement.x = size.width;
- advancement.y = 0;
-
+ UniChar uchar = [nsstr characterAtIndex: 0];
+ CGGlyph cgglyph = 0;
+
+ if (CTFontGetGlyphsForCharacters (ctfont, &uchar, &cgglyph, 1))
+ {
+ bbox = CTFontGetBoundingRectsForGlyphs (ctfont,
+ kCTFontDefaultOrientation,
+ &cgglyph, NULL, 1);
+ CGSize adv = { 0, };
+ CTFontGetAdvancesForGlyphs (ctfont, kCTFontDefaultOrientation,
+ &cgglyph, &adv, 1);
+ advancement.x = adv.width;
+ advancement.y = adv.height;
+
+ // Seems to be clipping by a pixel or two. Add a margin to be safe.
+ bbox.origin.x -= 2;
+ bbox.origin.y -= 2;
+ bbox.size.width += 4;
+ bbox.size.height += 4;
+ }
# endif // USE_IPHONE
/* Now that we know the advancement and bounding box, we can compute
(int) advancement.x, (int) advancement.y);
#endif
}
+
+# ifdef USE_IPHONE
+ CFRelease (ctfont);
+# endif
}
// We should never return NULL for XLFD fonts.
if (!fid->nsfont) {
- abort();
+ Assert (0, "no font");
+ return 0;
}
CFRetain (fid->nsfont); // needed for garbage collection?
projects / xscreensaver / blobdiff