-/* xscreensaver, Copyright (c) 1991-2016 Jamie Zawinski <jwz@jwz.org>
+/* xscreensaver, Copyright (c) 1991-2017 Jamie Zawinski <jwz@jwz.org>
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided that
# define NSMakeSize CGSizeMake
# define NSBezierPath UIBezierPath
# define colorWithDeviceRed colorWithRed
-
-# define NSFontTraitMask UIFontDescriptorSymbolicTraits
-// The values for the flags for NSFontTraitMask and
-// UIFontDescriptorSymbolicTraits match up, not that it really matters here.
-# define NSBoldFontMask UIFontDescriptorTraitBold
-# define NSFixedPitchFontMask UIFontDescriptorTraitMonoSpace
-# define NSItalicFontMask UIFontDescriptorTraitItalic
#else
# import <Cocoa/Cocoa.h>
#endif
#import <CoreText/CTFont.h>
#import <CoreText/CTLine.h>
-#import <CoreText/CTRun.h>
#import "jwxyzI.h"
#import "jwxyz-cocoa.h"
#import "utf8wc.h"
#import "xft.h"
-# undef MAX
-# undef MIN
-# define MAX(a,b) ((a)>(b)?(a):(b))
-# define MIN(a,b) ((a)<(b)?(a):(b))
-
struct jwxyz_Display {
Window main_window;
Screen *screen;
- int screen_count;
struct jwxyz_sources_data *timers_data;
# ifndef USE_IPHONE
CGBitmapInfo bitmap_info;
unsigned long black, white;
Visual *visual;
- int screen_number;
};
struct jwxyz_GC {
CGImageRef clip_mask; // CGImage copy of the Pixmap in gcv.clip_mask
};
-struct jwxyz_Font {
- Display *dpy;
- char *ps_name;
- NSFont *nsfont;
- float size; // points
- char *xa_font;
-
- // In X11, "Font" is just an ID, and "XFontStruct" contains the metrics.
- // But we need the metrics on both of them, so they go here.
- XFontStruct metrics;
-};
-
-struct jwxyz_XFontSet {
- XFontStruct *font;
-};
-
// 24/32bpp -> 32bpp image conversion.
// Any of RGBA, BGRA, ABGR, or ARGB can be represented by a rotate of 0/8/16/24
}
-/* We keep a list of all of the Displays that have been created and not
- yet freed so that they can have sensible display numbers. If three
- displays are created (0, 1, 2) and then #1 is closed, then the fourth
- display will be given the now-unused display number 1. (Everything in
- here assumes a 1:1 Display/Screen mapping.)
-
- The size of this array is the most number of live displays at one time.
- So if it's 20, then we'll blow up if the system has 19 monitors and also
- has System Preferences open (the small preview window).
-
- Note that xlockmore-style savers tend to allocate big structures, so
- setting this to 1000 will waste a few megabytes. Also some of them assume
- that the number of screens never changes, so dynamically expanding this
- array won't work.
- */
-# ifndef USE_IPHONE
-static Display *jwxyz_live_displays[20] = { 0, };
-# endif
-
-
Display *
jwxyz_make_display (Window w)
{
d->screen = (Screen *) calloc (1, sizeof(Screen));
d->screen->dpy = d;
- d->screen_count = 1;
- d->screen->screen_number = 0;
-# ifndef USE_IPHONE
- {
- // Find the first empty slot in live_displays and plug us in.
- int size = sizeof(jwxyz_live_displays) / sizeof(*jwxyz_live_displays);
- int i;
- for (i = 0; i < size; i++) {
- if (! jwxyz_live_displays[i])
- break;
- }
- if (i >= size) abort();
- jwxyz_live_displays[i] = d;
- d->screen_count = size;
- d->screen->screen_number = i;
- }
-# endif // !USE_IPHONE
-
d->screen->bitmap_info = CGBitmapContextGetBitmapInfo (cgc);
d->screen->black = jwxyz_alloc_color (d, 0x0000, 0x0000, 0x0000, 0xFFFF);
d->screen->white = jwxyz_alloc_color (d, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF);
(byte_order == kCGBitmapByteOrder32Little ||
byte_order == kCGBitmapByteOrder32Big),
"invalid bits per channel");
- v->bits_per_rgb = 8;
d->screen->visual = v;
d->timers_data = jwxyz_sources_init (XtDisplayToApplicationContext (d));
{
jwxyz_sources_free (dpy->timers_data);
-# ifndef USE_IPHONE
- {
- // Find us in live_displays and clear that slot.
- int size = ScreenCount(dpy);
- int i;
- for (i = 0; i < size; i++) {
- if (dpy == jwxyz_live_displays[i]) {
- jwxyz_live_displays[i] = 0;
- break;
- }
- }
- if (i >= size) abort();
- }
-# endif // !USE_IPHONE
-
free (dpy->screen->visual);
free (dpy->screen);
free (dpy);
int
XScreenNumberOfScreen (Screen *s)
{
- return s? s->screen_number : 0;
-}
-
-int
-jwxyz_ScreenCount (Display *dpy)
-{
- return dpy ? dpy->screen_count : 0;
+ return 0;
}
unsigned long
XImage *
-XGetImage (Display *dpy, Drawable d, int x, int y,
- unsigned int width, unsigned int height,
- unsigned long plane_mask, int format)
+XGetSubImage (Display *dpy, Drawable d, int x, int y,
+ unsigned int width, unsigned int height,
+ unsigned long plane_mask, int format,
+ XImage *image, int dest_x, int dest_y)
{
const unsigned char *data = 0;
size_t depth, ibpp, ibpl;
data += (y * ibpl) + (x * (ibpp/8));
format = (depth == 1 ? XYPixmap : ZPixmap);
- XImage *image = XCreateImage (dpy, 0, (unsigned int) depth,
- format, 0, 0, width, height, 0, 0);
- image->data = (char *) malloc (height * image->bytes_per_line);
int obpl = image->bytes_per_line;
unsigned char r = *iline2++; // use B or G or G or R
if (ibpp == 32) iline2++; // ignore A or R or B or A
- XPutPixel (image, xx, yy, (r ? 1 : 0));
+ XPutPixel (image, xx + dest_x, yy + dest_y, (r ? 1 : 0));
}
iline += ibpl;
}
} else {
const unsigned char *iline = data;
- unsigned char *oline = (unsigned char *) image->data;
+ unsigned char *oline = (unsigned char *) image->data + dest_y * obpl +
+ dest_x * 4;
mode = convert_mode_merge (mode,
convert_mode_invert (
}
-/* Font metric terminology, as used by X11:
-
- "lbearing" is the distance from the logical origin to the leftmost pixel.
- If a character's ink extends to the left of the origin, it is negative.
-
- "rbearing" is the distance from the logical origin to the rightmost pixel.
-
- "descent" is the distance from the logical origin to the bottommost pixel.
- For characters with descenders, it is positive. For superscripts, it
- is negative.
-
- "ascent" is the distance from the logical origin to the topmost pixel.
- It is the number of pixels above the baseline.
-
- "width" is the distance from the logical origin to the position where
- the logical origin of the next character should be placed.
-
- If "rbearing" is greater than "width", then this character overlaps the
- following character. If smaller, then there is trailing blank space.
- */
-static void
-utf8_metrics (Font fid, NSString *nsstr, XCharStruct *cs)
-{
- // Returns the metrics of the multi-character, single-line UTF8 string.
-
- NSFont *nsfont = fid->nsfont;
- Drawable d = XRootWindow (fid->dpy, 0);
-
- CGContextRef cgc = d->cgc;
- NSDictionary *attr =
- [NSDictionary dictionaryWithObjectsAndKeys:
- nsfont, NSFontAttributeName,
- nil];
- NSAttributedString *astr = [[NSAttributedString alloc]
- initWithString:nsstr
- attributes:attr];
- CTLineRef ctline = CTLineCreateWithAttributedString (
- (__bridge CFAttributedStringRef) astr);
- CGContextSetTextPosition (cgc, 0, 0);
- CGContextSetShouldAntialias (cgc, True); // #### Guess?
-
- memset (cs, 0, sizeof(*cs));
-
- // "CTRun represents set of consecutive glyphs sharing the same
- // attributes and direction".
- //
- // We also get multiple runs any time font subsitution happens:
- // E.g., if the current font is Verdana-Bold, a ← character
- // in the NSString will actually be rendered in LucidaGrande-Bold.
- //
- int count = 0;
- for (id runid in (NSArray *)CTLineGetGlyphRuns(ctline)) {
- CTRunRef run = (CTRunRef) runid;
- CFRange r = { 0, };
- CGRect bbox = CTRunGetImageBounds (run, cgc, r);
- CGFloat ascent, descent, leading;
- CGFloat advancement =
- CTRunGetTypographicBounds (run, r, &ascent, &descent, &leading);
-
-# ifndef USE_IPHONE
- // Only necessary for when LCD smoothing is enabled, which iOS doesn't do.
- bbox.origin.x -= 2.0/3.0;
- bbox.size.width += 4.0/3.0;
- bbox.size.height += 1.0/2.0;
-# endif
-
- // Create the metrics for this run:
- XCharStruct cc;
- cc.ascent = ceil (bbox.origin.y + bbox.size.height);
- cc.descent = ceil (-bbox.origin.y);
- cc.lbearing = floor (bbox.origin.x);
- cc.rbearing = ceil (bbox.origin.x + bbox.size.width);
- cc.width = floor (advancement + 0.5);
-
- // Add those metrics into the cumulative metrics:
- if (count == 0)
- *cs = cc;
- else
- {
- cs->ascent = MAX (cs->ascent, cc.ascent);
- cs->descent = MAX (cs->descent, cc.descent);
- cs->lbearing = MIN (cs->lbearing, cs->width + cc.lbearing);
- cs->rbearing = MAX (cs->rbearing, cs->width + cc.rbearing);
- cs->width = MAX (cs->width, cs->width + cc.width);
- }
-
- // Why no y? What about vertical text?
- // XCharStruct doesn't encapsulate that but XGlyphInfo does.
-
- count++;
- }
-
- [astr release];
- CFRelease (ctline);
-}
-
-
-
-// This is XQueryFont, but for the XFontStruct embedded in 'Font'
-//
-static void
-query_font (Font fid)
-{
- if (!fid || !fid->nsfont) {
- Assert (0, "no NSFont in fid");
- return;
- }
- if (![fid->nsfont fontName]) {
- Assert(0, "broken NSFont in fid");
- return;
- }
-
- int first = 32;
- int last = 255;
-
- XFontStruct *f = &fid->metrics;
- XCharStruct *min = &f->min_bounds;
- XCharStruct *max = &f->max_bounds;
-
- f->fid = fid;
- f->min_char_or_byte2 = first;
- f->max_char_or_byte2 = last;
- f->default_char = 'M';
- f->ascent = ceil ([fid->nsfont ascender]);
- f->descent = -floor ([fid->nsfont descender]);
-
- min->width = 32767; // set to smaller values in the loop
- min->ascent = 32767;
- min->descent = 32767;
- min->lbearing = 32767;
- min->rbearing = 32767;
-
- f->per_char = (XCharStruct *) calloc (last-first+2, sizeof (XCharStruct));
-
- for (int i = first; i <= last; i++) {
- XCharStruct *cs = &f->per_char[i-first];
-
- char s2[2];
- s2[0] = i;
- s2[1] = 0;
- NSString *nsstr = [NSString stringWithCString:s2
- encoding:NSISOLatin1StringEncoding];
- utf8_metrics (fid, nsstr, cs);
-
- max->width = MAX (max->width, cs->width);
- max->ascent = MAX (max->ascent, cs->ascent);
- max->descent = MAX (max->descent, cs->descent);
- max->lbearing = MAX (max->lbearing, cs->lbearing);
- max->rbearing = MAX (max->rbearing, cs->rbearing);
-
- min->width = MIN (min->width, cs->width);
- min->ascent = MIN (min->ascent, cs->ascent);
- min->descent = MIN (min->descent, cs->descent);
- min->lbearing = MIN (min->lbearing, cs->lbearing);
- min->rbearing = MIN (min->rbearing, cs->rbearing);
-
-# if 0
- fprintf(stderr, " %3d %c: w=%3d lb=%3d rb=%3d as=%3d ds=%3d "
- " bb=%5.1f x %5.1f @ %5.1f %5.1f adv=%5.1f %5.1f\n",
- i, i, cs->width, cs->lbearing, cs->rbearing,
- cs->ascent, cs->descent,
- bbox.size.width, bbox.size.height,
- bbox.origin.x, bbox.origin.y,
- advancement.width, advancement.height);
-# endif // 0
- }
-}
-
-
-// Since 'Font' includes the metrics, this just makes a copy of that.
-//
-XFontStruct *
-XQueryFont (Display *dpy, Font fid)
-{
- // copy XFontStruct
- XFontStruct *f = (XFontStruct *) calloc (1, sizeof(*f));
- *f = fid->metrics;
-
- // build XFontProps
- f->n_properties = 1;
- f->properties = malloc (sizeof(*f->properties) * f->n_properties);
- f->properties[0].name = XA_FONT;
- Assert (sizeof (f->properties[0].card32) >= sizeof (char *),
- "atoms probably needs a real implementation");
- // If XInternAtom is ever implemented, use it here.
- f->properties[0].card32 = (unsigned long)fid->xa_font;
-
- // copy XCharStruct array
- int size = (f->max_char_or_byte2 - f->min_char_or_byte2) + 1;
- f->per_char = (XCharStruct *) calloc (size + 2, sizeof (XCharStruct));
- memcpy (f->per_char, fid->metrics.per_char,
- size * sizeof (XCharStruct));
-
- return f;
-}
-
-
-static Font
-copy_font (Font fid)
-{
- // copy 'Font' struct
- Font fid2 = (Font) malloc (sizeof(*fid2));
- *fid2 = *fid;
-
- // copy XCharStruct array
- int size = fid->metrics.max_char_or_byte2 - fid->metrics.min_char_or_byte2;
- fid2->metrics.per_char = (XCharStruct *)
- malloc ((size + 2) * sizeof (XCharStruct));
- memcpy (fid2->metrics.per_char, fid->metrics.per_char,
- size * sizeof (XCharStruct));
-
- // copy the other pointers
- fid2->ps_name = strdup (fid->ps_name);
- fid2->xa_font = strdup (fid->xa_font);
-// [fid2->nsfont retain];
- fid2->metrics.fid = fid2;
-
- return fid2;
-}
-
-
-static NSArray *
-font_family_members (NSString *family_name)
-{
-# ifndef USE_IPHONE
- return [[NSFontManager sharedFontManager]
- availableMembersOfFontFamily:family_name];
-# else
- return [UIFont fontNamesForFamilyName:family_name];
-# endif
-}
-
-
-static NSString *
-default_font_family (NSFontTraitMask require)
-{
- return require & NSFixedPitchFontMask ? @"Courier" : @"Verdana";
-}
-
-
-static NSFont *
-try_font (NSFontTraitMask traits, NSFontTraitMask mask,
- NSString *family_name, float size,
- char **name_ret)
-{
- Assert (size > 0, "zero font size");
-
- NSArray *family_members = font_family_members (family_name);
- if (!family_members.count)
- family_members = font_family_members (default_font_family (traits));
-
-# ifndef USE_IPHONE
- for (unsigned k = 0; k != family_members.count; ++k) {
-
- NSArray *member = [family_members objectAtIndex:k];
- NSFontTraitMask font_mask =
- [(NSNumber *)[member objectAtIndex:3] unsignedIntValue];
-
- if ((font_mask & mask) == traits) {
-
- NSString *name = [member objectAtIndex:0];
- NSFont *f = [NSFont fontWithName:name size:size];
- if (!f)
- break;
-
- /* Don't use this font if it (probably) doesn't include ASCII characters.
- */
- NSStringEncoding enc = [f mostCompatibleStringEncoding];
- if (! (enc == NSUTF8StringEncoding ||
- enc == NSISOLatin1StringEncoding ||
- enc == NSNonLossyASCIIStringEncoding ||
- enc == NSISOLatin2StringEncoding ||
- enc == NSUnicodeStringEncoding ||
- enc == NSWindowsCP1250StringEncoding ||
- enc == NSWindowsCP1252StringEncoding ||
- enc == NSMacOSRomanStringEncoding)) {
- // NSLog(@"skipping \"%@\": encoding = %d", name, enc);
- break;
- }
- // NSLog(@"using \"%@\": %d", name, enc);
-
- // *name_ret = strdup ([name cStringUsingEncoding:NSUTF8StringEncoding]);
- *name_ret = strdup (name.UTF8String);
- return f;
- }
- }
-# else // USE_IPHONE
-
- // This trick needs iOS 3.1, see "Using SDK-Based Development".
- Class has_font_descriptor = [UIFontDescriptor class];
-
- for (NSString *fn in family_members) {
-# define MATCH(X) \
- ([fn rangeOfString:X options:NSCaseInsensitiveSearch].location \
- != NSNotFound)
-
- NSFontTraitMask font_mask;
- if (has_font_descriptor) {
- // This only works on iOS 7 and later.
- font_mask = [[UIFontDescriptor
- fontDescriptorWithFontAttributes:
- @{UIFontDescriptorNameAttribute:fn}]
- symbolicTraits];
- } else {
- font_mask = 0;
- if (MATCH(@"Bold"))
- font_mask |= NSBoldFontMask;
- if (MATCH(@"Italic") || MATCH(@"Oblique"))
- font_mask |= NSItalicFontMask;
- if (MATCH(@"Courier"))
- font_mask |= NSFixedPitchFontMask;
- }
-
- if ((font_mask & mask) == traits) {
-
- /* Check if it can do ASCII. No good way to accomplish this!
- These are fonts present in iPhone Simulator as of June 2012
- that don't include ASCII.
- */
- if (MATCH(@"AppleGothic") || // Korean
- MATCH(@"Dingbats") || // Dingbats
- MATCH(@"Emoji") || // Emoticons
- MATCH(@"Geeza") || // Arabic
- MATCH(@"Hebrew") || // Hebrew
- MATCH(@"HiraKaku") || // Japanese
- MATCH(@"HiraMin") || // Japanese
- MATCH(@"Kailasa") || // Tibetan
- MATCH(@"Ornaments") || // Dingbats
- MATCH(@"STHeiti") // Chinese
- )
- break;
-
- *name_ret = strdup (fn.UTF8String);
- return [UIFont fontWithName:fn size:size];
- }
-# undef MATCH
- }
-
-# endif
-
- return NULL;
-}
-
-
-/* On Cocoa and iOS, fonts may be specified as "Georgia Bold 24" instead
- of XLFD strings; also they can be comma-separated strings with multiple
- font names. First one that exists wins.
- */
-static NSFont *
-try_native_font (const char *name, float scale,
- char **name_ret, float *size_ret, char **xa_font)
-{
- if (!name) return 0;
- const char *spc = strrchr (name, ' ');
- if (!spc) return 0;
-
- NSFont *f = 0;
- char *token = strdup (name);
- char *otoken = token;
- char *name2;
- char *lasts;
-
- while ((name2 = strtok_r (token, ",", &lasts))) {
- token = 0;
-
- while (*name2 == ' ' || *name2 == '\t' || *name2 == '\n')
- name2++;
-
- spc = strrchr (name2, ' ');
- if (!spc) continue;
-
- int dsize = 0;
- if (1 != sscanf (spc, " %d ", &dsize))
- continue;
- float size = dsize;
-
- if (size < 4) continue;
-
- size *= scale;
-
- name2[strlen(name2) - strlen(spc)] = 0;
-
- NSString *nsname = [NSString stringWithCString:name2
- encoding:NSUTF8StringEncoding];
- f = [NSFont fontWithName:nsname size:size];
- if (f) {
- *name_ret = strdup (name2);
- *size_ret = size;
- *xa_font = strdup (name); // Maybe this should be an XLFD?
- break;
- } else {
- NSLog(@"No native font: \"%@\" %.0f", nsname, size);
-# if 0
- for (NSString *fam in [UIFont familyNames]) {
- NSLog(@"Family: %@", fam);
- for (NSString *f in [UIFont fontNamesForFamilyName:fam]) {
- NSLog(@" Font: %@", f);
- }
- }
-# endif
- }
- }
-
- free (otoken);
- return f;
-}
-
-
-/* Returns a random font in the given size and face.
- */
-static NSFont *
-random_font (NSFontTraitMask traits, NSFontTraitMask mask,
- float size, NSString **family_ret, char **name_ret)
-{
-
-# ifndef USE_IPHONE
- // Providing Unbold or Unitalic in the mask for availableFontNamesWithTraits
- // returns an empty list, at least on a system with default fonts only.
- NSArray *families = [[NSFontManager sharedFontManager]
- availableFontFamilies];
- if (!families) return 0;
-# else
- NSArray *families = [UIFont familyNames];
-
- // There are many dups in the families array -- uniquify it.
- {
- NSArray *sorted_families =
- [families sortedArrayUsingSelector:@selector(compare:)];
- NSMutableArray *new_families =
- [NSMutableArray arrayWithCapacity:sorted_families.count];
-
- NSString *prev_family = @"";
- for (NSString *family in sorted_families) {
- if ([family compare:prev_family])
- [new_families addObject:family];
- prev_family = family;
- }
-
- families = new_families;
- }
-# endif // USE_IPHONE
-
- long n = [families count];
- if (n <= 0) return 0;
-
- int j;
- for (j = 0; j < n; j++) {
- int i = random() % n;
- NSString *family_name = [families objectAtIndex:i];
-
- NSFont *result = try_font (traits, mask, family_name, size, name_ret);
- if (result) {
- [*family_ret release];
- *family_ret = family_name;
- [*family_ret retain];
- return result;
- }
- }
-
- // None of the fonts support ASCII?
- return 0;
-}
-
-
-static const char *
-xlfd_field_end (const char *s)
-{
- const char *s2 = strchr(s, '-');
- if (!s2)
- s2 = s + strlen(s);
- return s2;
-}
-
-
-static size_t
-xlfd_next (const char **s, const char **s2)
-{
- if (!**s2) {
- *s = *s2;
- } else {
- Assert (**s2 == '-', "xlfd parse error");
- *s = *s2 + 1;
- *s2 = xlfd_field_end (*s);
- }
-
- return *s2 - *s;
-}
-
-
-static NSFont *
-try_xlfd_font (Display *dpy, const char *name, float scale,
- char **name_ret, float *size_ret, char **xa_font)
-{
- NSFont *nsfont = 0;
- NSString *family_name = nil;
- NSFontTraitMask require = 0,
- // Default mask is for the built-in X11 font aliases.
- mask = NSFixedPitchFontMask | NSBoldFontMask | NSItalicFontMask;
- BOOL rand = NO;
- float size = 12; /* In points (1/72 in.) */
- char *ps_name = 0;
-
- const char *s = (name ? name : "");
-
- size_t L = strlen (s);
-# define CMP(STR) (L == strlen(STR) && !strncasecmp (s, (STR), L))
-# define UNSPEC (L == 0 || L == 1 && *s == '*')
- if (CMP ("6x10")) size = 8, require |= NSFixedPitchFontMask;
- else if (CMP ("6x10bold")) size = 8, require |= NSFixedPitchFontMask | NSBoldFontMask;
- else if (CMP ("fixed")) size = 12, require |= NSFixedPitchFontMask;
- else if (CMP ("9x15")) size = 12, require |= NSFixedPitchFontMask;
- else if (CMP ("9x15bold")) size = 12, require |= NSFixedPitchFontMask | NSBoldFontMask;
- else if (CMP ("vga")) size = 12, require |= NSFixedPitchFontMask;
- else if (CMP ("console")) size = 12, require |= NSFixedPitchFontMask;
- else if (CMP ("gallant")) size = 12, require |= NSFixedPitchFontMask;
- else {
-
- NSFontTraitMask forbid = 0;
-
- // Incorrect fields are ignored.
-
- if (*s == '-')
- ++s;
- const char *s2 = xlfd_field_end(s);
-
- // Foundry (ignore)
-
- L = xlfd_next (&s, &s2); // Family name
- // This used to substitute Georgia for Times. Now it doesn't.
- if (CMP ("random")) {
- rand = YES;
- } else if (CMP ("fixed")) {
- require |= NSFixedPitchFontMask;
- family_name = @"Courier";
- } else if (!UNSPEC) {
- family_name = [[[NSString alloc] initWithBytes:s
- length:L
- encoding:NSUTF8StringEncoding]
- autorelease];
- }
-
- L = xlfd_next (&s, &s2); // Weight name
- if (CMP ("bold") || CMP ("demibold"))
- require |= NSBoldFontMask;
- else if (CMP ("medium") || CMP ("regular"))
- forbid |= NSBoldFontMask;
-
- L = xlfd_next (&s, &s2); // Slant
- if (CMP ("i") || CMP ("o"))
- require |= NSItalicFontMask;
- else if (CMP ("r"))
- forbid |= NSItalicFontMask;
-
- xlfd_next (&s, &s2); // Set width name (ignore)
- xlfd_next (&s, &s2); // Add style name (ignore)
-
- L = xlfd_next (&s, &s2); // Pixel size (ignore)
- char *s3;
- uintmax_t pxsize = strtoumax(s, &s3, 10);
- if (UNSPEC || s2 != s3)
- pxsize = UINTMAX_MAX; // i.e. it's invalid.
-
- L = xlfd_next (&s, &s2); // Point size
- uintmax_t ptsize = strtoumax(s, &s3, 10);
- if (UNSPEC || s2 != s3)
- ptsize = UINTMAX_MAX;
-
- xlfd_next (&s, &s2); // Resolution X (ignore)
- xlfd_next (&s, &s2); // Resolution Y (ignore)
-
- L = xlfd_next (&s, &s2); // Spacing
- if (CMP ("p"))
- forbid |= NSFixedPitchFontMask;
- else if (CMP ("m") || CMP ("c"))
- require |= NSFixedPitchFontMask;
-
- xlfd_next (&s, &s2); // Average width (ignore)
-
- // -*-courier-bold-r-*-*-14-*-*-*-*-*-*-* 14 px
- // -*-courier-bold-r-*-*-*-140-*-*-m-*-*-* 14 pt
- // -*-courier-bold-r-*-*-140-* 14 pt, via wildcard
- // -*-courier-bold-r-*-140-* 14 pt, not handled
- // -*-courier-bold-r-*-*-14-180-*-*-*-*-*-* error
-
- L = xlfd_next (&s, &s2); // Charset registry
- if (ptsize != UINTMAX_MAX) {
- // It was in the ptsize field, so that's definitely what it is.
- size = ptsize / 10.0;
- } else if (pxsize != UINTMAX_MAX) {
- size = pxsize;
- // If it's a fully qualified XLFD, then this really is the pxsize.
- // Otherwise, this is probably point size with a multi-field wildcard.
- if (L == 0)
- size /= 10.0;
- }
-
- mask = require | forbid;
- }
-# undef CMP
-# undef UNSPEC
-
- if (!family_name && !rand)
- family_name = default_font_family (require);
-
- if (size < 6 || size > 1000)
- size = 12;
-
- size *= scale;
-
- if (rand) {
- nsfont = random_font (require, mask, size, &family_name, &ps_name);
- [family_name autorelease];
- }
-
- if (!nsfont)
- nsfont = try_font (require, mask, family_name, size, &ps_name);
-
- // if that didn't work, turn off attibutes until it does
- // (e.g., there is no "Monaco-Bold".)
- //
- if (!nsfont && (mask & NSItalicFontMask)) {
- require &= ~NSItalicFontMask;
- mask &= ~NSItalicFontMask;
- nsfont = try_font (require, mask, family_name, size, &ps_name);
- }
- if (!nsfont && (mask & NSBoldFontMask)) {
- require &= ~NSBoldFontMask;
- mask &= ~NSBoldFontMask;
- nsfont = try_font (require, mask, family_name, size, &ps_name);
- }
- if (!nsfont && (mask & NSFixedPitchFontMask)) {
- require &= ~NSFixedPitchFontMask;
- mask &= ~NSFixedPitchFontMask;
- nsfont = try_font (require, mask, family_name, size, &ps_name);
- }
-
- if (nsfont) {
- unsigned dpi_d = XDisplayHeightMM (dpy,0) * 10 / 2;
- unsigned dpi = (254 * XDisplayHeight (dpy,0) + dpi_d) / (2 * dpi_d);
- *name_ret = ps_name;
- *size_ret = size;
- float actual_size = size / scale;
- asprintf(xa_font, "-*-%s-%s-%c-*-*-%u-%u-%u-%u-%c-0-iso10646-1",
- family_name.UTF8String,
- (require & NSBoldFontMask) ? "bold" : "medium",
- (require & NSItalicFontMask) ? 'o' : 'r',
- (unsigned)(dpi * actual_size / 72.27 + 0.5),
- (unsigned)(actual_size * 10 + 0.5), dpi, dpi,
- (require & NSFixedPitchFontMask) ? 'm' : 'p');
- return nsfont;
- } else {
- if (ps_name) free (ps_name);
- return 0;
- }
-}
-
-
-Font
-XLoadFont (Display *dpy, const char *name)
-{
- Font fid = (Font) calloc (1, sizeof(*fid));
-
- float scale = 1;
-
-# ifdef USE_IPHONE
- /* Since iOS screens are physically smaller than desktop screens, scale up
- the fonts to make them more readable.
-
- Note that X11 apps on iOS also have the backbuffer sized in points
- instead of pixels, resulting in an effective X11 screen size of 768x1024
- or so, even if the display has significantly higher resolution. That is
- unrelated to this hack, which is really about DPI.
- */
- scale = dpy->main_window->window.view.hackedContentScaleFactor;
- if (scale < 1) // iPad Pro magnifies the backbuffer by 3x, which makes text
- scale = 1; // excessively blurry in BSOD.
-# endif
-
- fid->dpy = dpy;
- fid->nsfont = try_native_font (name, scale, &fid->ps_name, &fid->size,
- &fid->xa_font);
-
- if (!fid->nsfont && name &&
- strchr (name, ' ') &&
- !strchr (name, '*')) {
- // If name contains a space but no stars, it is a native font spec --
- // return NULL so that we know it really didn't exist. Else, it is an
- // XLFD font, so keep trying.
- XUnloadFont (dpy, fid);
- return 0;
- }
-
- if (! fid->nsfont)
- fid->nsfont = try_xlfd_font (dpy, name, scale, &fid->ps_name, &fid->size,
- &fid->xa_font);
-
- // We should never return NULL for XLFD fonts.
- if (!fid->nsfont) {
- Assert (0, "no font");
- return 0;
- }
- CFRetain (fid->nsfont); // needed for garbage collection?
-
- //NSLog(@"parsed \"%s\" to %s %.1f", name, fid->ps_name, fid->size);
-
- query_font (fid);
-
- return fid;
-}
-
-
-XFontStruct *
-XLoadQueryFont (Display *dpy, const char *name)
-{
- Font fid = XLoadFont (dpy, name);
- if (!fid) return 0;
- return XQueryFont (dpy, fid);
-}
-
-int
-XUnloadFont (Display *dpy, Font fid)
-{
- if (fid->ps_name)
- free (fid->ps_name);
- if (fid->metrics.per_char)
- free (fid->metrics.per_char);
-
- // #### DAMMIT! I can't tell what's going wrong here, but I keep getting
- // crashes in [NSFont ascender] <- query_font, and it seems to go away
- // if I never release the nsfont. So, fuck it, we'll just leak fonts.
- // They're probably not very big...
- //
- // [fid->nsfont release];
- // CFRelease (fid->nsfont);
-
- free (fid);
- return 0;
-}
-
-int
-XFreeFontInfo (char **names, XFontStruct *info, int n)
-{
- int i;
- if (names) {
- for (i = 0; i < n; i++)
- if (names[i]) free (names[i]);
- free (names);
- }
- if (info) {
- for (i = 0; i < n; i++)
- if (info[i].per_char) {
- free (info[i].per_char);
- free (info[i].properties);
- }
- free (info);
- }
- return 0;
-}
-
-int
-XFreeFont (Display *dpy, XFontStruct *f)
-{
- Font fid = f->fid;
- XFreeFontInfo (0, f, 1);
- XUnloadFont (dpy, fid);
- return 0;
-}
-
-
-int
-XSetFont (Display *dpy, GC gc, Font fid)
-{
- if (gc->gcv.font)
- XUnloadFont (dpy, gc->gcv.font);
- gc->gcv.font = copy_font (fid);
- [gc->gcv.font->nsfont retain];
- CFRetain (gc->gcv.font->nsfont); // needed for garbage collection?
- return 0;
-}
-
-
-XFontSet
-XCreateFontSet (Display *dpy, char *name,
- char ***missing_charset_list_return,
- int *missing_charset_count_return,
- char **def_string_return)
-{
- char *name2 = strdup (name);
- char *s = strchr (name, ',');
- if (s) *s = 0;
- XFontSet set = 0;
- XFontStruct *f = XLoadQueryFont (dpy, name2);
- if (f)
- {
- set = (XFontSet) calloc (1, sizeof(*set));
- set->font = f;
- }
- free (name2);
- if (missing_charset_list_return) *missing_charset_list_return = 0;
- if (missing_charset_count_return) *missing_charset_count_return = 0;
- if (def_string_return) *def_string_return = 0;
- return set;
-}
-
-
-void
-XFreeFontSet (Display *dpy, XFontSet set)
-{
- XFreeFont (dpy, set->font);
- free (set);
-}
-
-
-const char *
-jwxyz_nativeFontName (Font f, float *size)
-{
- if (size) *size = f->size;
- return f->ps_name;
-}
-
-
-void
-XFreeStringList (char **list)
-{
- int i;
- if (!list) return;
- for (i = 0; list[i]; i++)
- XFree (list[i]);
- XFree (list);
-}
-
-
// Returns the verbose Unicode name of this character, like "agrave" or
// "daggerdouble". Used by fontglide debugMetrics.
//
jwxyz_unicode_character_name (Display *dpy, Font fid, unsigned long uc)
{
char *ret = 0;
+ NSFont *nsfont = (NSFont *) jwxyz_native_font (fid);
CTFontRef ctfont =
- CTFontCreateWithName ((CFStringRef) [fid->nsfont fontName],
- [fid->nsfont pointSize],
+ CTFontCreateWithName ((CFStringRef) [nsfont fontName],
+ [nsfont pointSize],
NULL);
Assert (ctfont, "no CTFontRef for UIFont");
}
-// Given a UTF8 string, return an NSString. Bogus UTF8 characters are ignored.
-// We have to do this because stringWithCString returns NULL if there are
-// any invalid characters at all.
-//
-static NSString *
-sanitize_utf8 (const char *in, int in_len, Bool *latin1_pP)
-{
- int out_len = in_len * 4; // length of string might increase
- char *s2 = (char *) malloc (out_len);
- char *out = s2;
- const char *in_end = in + in_len;
- const char *out_end = out + out_len;
- Bool latin1_p = True;
-
- while (in < in_end)
- {
- unsigned long uc;
- long L1 = utf8_decode ((const unsigned char *) in, in_end - in, &uc);
- long L2 = utf8_encode (uc, out, out_end - out);
- in += L1;
- out += L2;
- if (uc > 255) latin1_p = False;
- }
- *out = 0;
- NSString *nsstr =
- [NSString stringWithCString:s2 encoding:NSUTF8StringEncoding];
- free (s2);
- if (latin1_pP) *latin1_pP = latin1_p;
- return (nsstr ? nsstr : @"");
-}
-
-
int
-XTextExtents (XFontStruct *f, const char *s, int length,
- int *dir_ret, int *ascent_ret, int *descent_ret,
- XCharStruct *cs)
+jwxyz_draw_string (Display *dpy, Drawable d, GC gc, int x, int y,
+ const char *str, size_t len, int utf8_p)
{
- // Unfortunately, adding XCharStructs together to get the extents for a
- // string doesn't work: Cocoa uses non-integral character advancements, but
- // XCharStruct.width is an integer. Plus that doesn't take into account
- // kerning pairs, alternate glyphs, and fun stuff like the word "Zapfino" in
- // Zapfino.
-
- NSString *nsstr = [[[NSString alloc] initWithBytes:s
- length:length
- encoding:NSISOLatin1StringEncoding]
- autorelease];
- utf8_metrics (f->fid, nsstr, cs);
- *dir_ret = 0;
- *ascent_ret = f->ascent;
- *descent_ret = f->descent;
- return 0;
-}
-
-int
-XTextWidth (XFontStruct *f, const char *s, int length)
-{
- int ascent, descent, dir;
- XCharStruct cs;
- XTextExtents (f, s, length, &dir, &ascent, &descent, &cs);
- return cs.width;
-}
+ NSString *nsstr = nsstring_from (str, len, utf8_p);
-
-int
-XTextExtents16 (XFontStruct *f, const XChar2b *s, int length,
- int *dir_ret, int *ascent_ret, int *descent_ret,
- XCharStruct *cs)
-{
- // Bool latin1_p = True;
- int i, utf8_len = 0;
- char *utf8 = XChar2b_to_utf8 (s, &utf8_len); // already sanitized
-
- for (i = 0; i < length; i++)
- if (s[i].byte1 > 0) {
- // latin1_p = False;
- break;
- }
-
- {
- NSString *nsstr = [NSString stringWithCString:utf8
- encoding:NSUTF8StringEncoding];
- utf8_metrics (f->fid, nsstr, cs);
- }
-
- *dir_ret = 0;
- *ascent_ret = f->ascent;
- *descent_ret = f->descent;
- free (utf8);
- return 0;
-}
-
-
-/* "Returns the distance in pixels in the primary draw direction from
- the drawing origin to the origin of the next character to be drawn."
-
- "overall_ink_return is set to the bbox of the string's character ink."
-
- "The overall_ink_return for a nondescending, horizontally drawn Latin
- character is conventionally entirely above the baseline; that is,
- overall_ink_return.height <= -overall_ink_return.y."
-
- [So this means that y is the top of the ink, and height grows down:
- For above-the-baseline characters, y is negative.]
-
- "The overall_ink_return for a nonkerned character is entirely at, and to
- the right of, the origin; that is, overall_ink_return.x >= 0."
-
- [So this means that x is the left of the ink, and width grows right.
- For left-of-the-origin characters, x is negative.]
-
- "A character consisting of a single pixel at the origin would set
- overall_ink_return fields y = 0, x = 0, width = 1, and height = 1."
- */
-int
-Xutf8TextExtents (XFontSet set, const char *str, int len,
- XRectangle *overall_ink_return,
- XRectangle *overall_logical_return)
-{
- Bool latin1_p;
- NSString *nsstr = sanitize_utf8 (str, len, &latin1_p);
- XCharStruct cs;
-
- utf8_metrics (set->font->fid, nsstr, &cs);
-
- /* "The overall_logical_return is the bounding box that provides minimum
- spacing to other graphical features for the string. Other graphical
- features, for example, a border surrounding the text, should not
- intersect this rectangle."
-
- So I think that means they're the same? Or maybe "ink" is the bounding
- box, and "logical" is the advancement? But then why is the return value
- the advancement?
- */
- if (overall_ink_return)
- XCharStruct_to_XmbRectangle (cs, *overall_ink_return);
- if (overall_logical_return)
- XCharStruct_to_XmbRectangle (cs, *overall_logical_return);
-
- return cs.width;
-}
-
-
-static int
-draw_string (Display *dpy, Drawable d, GC gc, int x, int y,
- NSString *nsstr)
-{
if (! nsstr) return 1;
XRectangle wr = d->frame;
NSDictionary *attr =
[NSDictionary dictionaryWithObjectsAndKeys:
- gc->gcv.font->nsfont, NSFontAttributeName,
+ (NSFont *) jwxyz_native_font (gc->gcv.font), NSFontAttributeName,
fg, NSForegroundColorAttributeName,
nil];
}
-int
-XDrawString (Display *dpy, Drawable d, GC gc, int x, int y,
- const char *str, int len)
-{
- char *s2 = (char *) malloc (len + 1);
- strncpy (s2, str, len);
- s2[len] = 0;
- NSString *nsstr = [NSString stringWithCString:s2
- encoding:NSISOLatin1StringEncoding];
- int ret = draw_string (dpy, d, gc, x, y, nsstr);
- free (s2);
- return ret;
-}
-
-
-int
-XDrawString16 (Display *dpy, Drawable d, GC gc, int x, int y,
- const XChar2b *str, int len)
-{
- char *s2 = XChar2b_to_utf8 (str, 0); // already sanitized
- NSString *nsstr =
- [NSString stringWithCString:s2 encoding:NSUTF8StringEncoding];
- int ret = draw_string (dpy, d, gc, x, y, nsstr);
- free (s2);
- return ret;
-}
-
-
-void
-Xutf8DrawString (Display *dpy, Drawable d, XFontSet set, GC gc,
- int x, int y, const char *str, int len)
-{
- char *s2 = (char *) malloc (len + 1);
- strncpy (s2, str, len);
- s2[len] = 0;
- NSString *nsstr = sanitize_utf8 (str, len, 0);
- draw_string (dpy, d, gc, x, y, nsstr);
- free (s2);
-}
-
-
-int
-XDrawImageString (Display *dpy, Drawable d, GC gc, int x, int y,
- const char *str, int len)
-{
- int ascent, descent, dir;
- XCharStruct cs;
- XTextExtents (&gc->gcv.font->metrics, str, len,
- &dir, &ascent, &descent, &cs);
- jwxyz_fill_rect (dpy, d, gc,
- x + MIN (0, cs.lbearing),
- y - MAX (0, ascent),
- MAX (MAX (0, cs.rbearing) -
- MIN (0, cs.lbearing),
- cs.width),
- MAX (0, ascent) + MAX (0, descent),
- gc->gcv.background);
- return XDrawString (dpy, d, gc, x, y, str, len);
-}
-
-
int
XSetClipMask (Display *dpy, GC gc, Pixmap m)
{
projects / xscreensaver / blobdiff