ref: 6e68d605ee9903626b64221607a4577c2c92c6bc
dir: /DoConfig/fltk/src/fl_font_mac.cxx/
//
// "$Id$"
//
// MacOS font selection routines for the Fast Light Tool Kit (FLTK).
//
// Copyright 1998-2015 by Bill Spitzak and others.
//
// This library is free software. Distribution and use rights are outlined in
// the file "COPYING" which should have been included with this file. If this
// file is missing or damaged, see the license at:
//
// http://www.fltk.org/COPYING.php
//
// Please report all bugs and problems on the following page:
//
// http://www.fltk.org/str.php
//
#include <config.h>
#include <math.h>
Fl_Fontdesc* fl_fonts = NULL;
/* from fl_utf.c */
extern unsigned fl_utf8toUtf16(const char* src, unsigned srclen, unsigned short* dst, unsigned dstlen);
static CGAffineTransform font_mx = { 1, 0, 0, -1, 0, 0 };
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
static CFMutableDictionaryRef attributes = NULL;
#endif
const int Fl_X::CoreText_threshold = 100500; // this represents Mac OS 10.5
// condition when the ATSU API is available at compile time
#define HAS_ATSU (!__LP64__) && MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_11
Fl_Font_Descriptor::Fl_Font_Descriptor(const char* name, Fl_Fontsize Size) {
next = 0;
# if HAVE_GL
listbase = 0;
# endif
// knowWidths = 0;
// OpenGL needs those for its font handling
size = Size;
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
if (fl_mac_os_version >= Fl_X::CoreText_threshold) {
CFStringRef str = CFStringCreateWithCString(NULL, name, kCFStringEncodingUTF8);
fontref = CTFontCreateWithName(str, size, NULL);
CGGlyph glyph[2];
const UniChar A[2]={'W','.'};
CTFontGetGlyphsForCharacters(fontref, A, glyph, 2);
CGSize advances[2];
double w;
CTFontGetAdvancesForGlyphs(fontref, kCTFontHorizontalOrientation, glyph, advances, 2);
w = advances[0].width;
if ( fabs(advances[0].width - advances[1].width) < 1E-2 ) {//this is a fixed-width font
// slightly rescale fixed-width fonts so the character width has an integral value
CFRelease(fontref);
CGFloat fsize = size / ( w/floor(w + 0.5) );
fontref = CTFontCreateWithName(str, fsize, NULL);
w = CTFontGetAdvancesForGlyphs(fontref, kCTFontHorizontalOrientation, glyph, NULL, 1);
}
CFRelease(str);
ascent = (short)(CTFontGetAscent(fontref) + 0.5);
descent = (short)(CTFontGetDescent(fontref) + 0.5);
q_width = w + 0.5;
for (unsigned i = 0; i < sizeof(width)/sizeof(float*); i++) width[i] = NULL;
if (!attributes) {
static CFNumberRef zero_ref;
float zero = 0.;
zero_ref = CFNumberCreate(NULL, kCFNumberFloat32Type, &zero);
// deactivate kerning for all fonts, so that string width = sum of character widths
// which allows fast fl_width() implementation.
attributes = CFDictionaryCreateMutable(kCFAllocatorDefault,
3,
&kCFTypeDictionaryKeyCallBacks,
&kCFTypeDictionaryValueCallBacks);
CFDictionarySetValue (attributes, kCTKernAttributeName, zero_ref);
}
if (ascent == 0) { // this may happen with some third party fonts
CFDictionarySetValue (attributes, kCTFontAttributeName, fontref);
CFAttributedStringRef mastr = CFAttributedStringCreate(kCFAllocatorDefault, CFSTR("Wj"), attributes);
CTLineRef ctline = CTLineCreateWithAttributedString(mastr);
CFRelease(mastr);
CGFloat fascent, fdescent;
CTLineGetTypographicBounds(ctline, &fascent, &fdescent, NULL);
CFRelease(ctline);
ascent = (short)(fascent + 0.5);
descent = (short)(fdescent + 0.5);
}
}
else {
#endif
#if HAS_ATSU
OSStatus err;
// fill our structure with a few default values
ascent = Size*3/4.;
descent = Size-ascent;
q_width = Size*2/3.;
// now we allocate everything needed to render text in this font later
// get us the default layout and style
err = ATSUCreateTextLayout(&layout);
UniChar mTxt[2] = { 65, 0 };
err = ATSUSetTextPointerLocation(layout, mTxt, kATSUFromTextBeginning, 1, 1);
err = ATSUCreateStyle(&style);
err = ATSUSetRunStyle(layout, style, kATSUFromTextBeginning, kATSUToTextEnd);
// now set the actual font, size and attributes. We also set the font matrix to
// render our font up-side-down, so when rendered through our inverted CGContext,
// text will appear normal again.
Fixed fsize = IntToFixed(Size);
ATSUFontID fontID;
ATSUFindFontFromName(name, strlen(name), kFontFullName, kFontMacintoshPlatform, kFontNoScriptCode, kFontEnglishLanguage, &fontID);
// draw the font upside-down... Compensate for fltk/OSX origin differences
ATSUAttributeTag sTag[] = { kATSUFontTag, kATSUSizeTag, kATSUFontMatrixTag };
ByteCount sBytes[] = { sizeof(ATSUFontID), sizeof(Fixed), sizeof(CGAffineTransform) };
ATSUAttributeValuePtr sAttr[] = { &fontID, &fsize, &font_mx };
if (fontID != kATSUInvalidFontID) err = ATSUSetAttributes(style, 1, sTag, sBytes, sAttr); // set the font attribute
err = ATSUSetAttributes(style, 2, sTag + 1, sBytes + 1, sAttr + 1); // then the size and matrix attributes
// next, make sure that Quartz will only render at integer coordinates
ATSLineLayoutOptions llo = kATSLineUseDeviceMetrics | kATSLineDisableAllLayoutOperations;
ATSUAttributeTag aTag[] = { kATSULineLayoutOptionsTag };
ByteCount aBytes[] = { sizeof(ATSLineLayoutOptions) };
ATSUAttributeValuePtr aAttr[] = { &llo };
err = ATSUSetLineControls (layout, kATSUFromTextBeginning, 1, aTag, aBytes, aAttr);
// now we are finally ready to measure some letter to get the bounding box
Fixed bBefore, bAfter, bAscent, bDescent;
err = ATSUGetUnjustifiedBounds(layout, kATSUFromTextBeginning, 1, &bBefore, &bAfter, &bAscent, &bDescent);
// Requesting a certain height font on Mac does not guarantee that ascent+descent
// equal the requested height. fl_height will reflect the actual height that we got.
// The font "Apple Chancery" is a pretty extreme example of overlapping letters.
float fa = -FixedToFloat(bAscent), fd = -FixedToFloat(bDescent);
if (fa>0.0f && fd>0.0f) {
//float f = Size/(fa+fd);
ascent = int(fa); //int(fa*f+0.5f);
descent = int(fd); //Size - ascent;
}
int w = FixedToInt(bAfter);
if (w)
q_width = FixedToInt(bAfter);
# define ENABLE_TRANSIENT_FONTS 1
# ifdef ENABLE_TRANSIENT_FONTS
// Now, by way of experiment, try enabling Transient Font Matching, this will
// cause ATSU to find a suitable font to render any chars the current font can't do...
ATSUSetTransientFontMatching (layout, true);
# endif
#endif//HAS_ATSU
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
}
#endif
}
Fl_Font_Descriptor::~Fl_Font_Descriptor() {
/*
#if HAVE_GL
// ++ todo: remove OpenGL font alocations
// Delete list created by gl_draw(). This is not done by this code
// as it will link in GL unnecessarily. There should be some kind
// of "free" routine pointer, or a subclass?
// if (listbase) {
// int base = font->min_char_or_byte2;
// int size = font->max_char_or_byte2-base+1;
// int base = 0; int size = 256;
// glDeleteLists(listbase+base,size);
// }
#endif
*/
if (this == fl_graphics_driver->font_descriptor()) fl_graphics_driver->font_descriptor(NULL);
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
if (fl_mac_os_version >= Fl_X::CoreText_threshold) {
CFRelease(fontref);
for (unsigned i = 0; i < sizeof(width)/sizeof(float*); i++) {
if (width[i]) free(width[i]);
}
}
#endif
}
////////////////////////////////////////////////////////////////
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
static Fl_Fontdesc built_in_table_PS[] = { // PostScript font names preferred when Mac OS ≥ 10.5
{"ArialMT"},
{"Arial-BoldMT"},
{"Arial-ItalicMT"},
{"Arial-BoldItalicMT"},
{"Courier"},
{"Courier-Bold"},
{"Courier-Oblique"},
{"Courier-BoldOblique"},
{"TimesNewRomanPSMT"},
{"TimesNewRomanPS-BoldMT"},
{"TimesNewRomanPS-ItalicMT"},
{"TimesNewRomanPS-BoldItalicMT"},
{"Symbol"},
{"Monaco"},
{"AndaleMono"}, // there is no bold Monaco font on standard Mac
{"ZapfDingbatsITC"}
};
#endif
static Fl_Fontdesc built_in_table_full[] = { // full font names used before 10.5
{"Arial"},
{"Arial Bold"},
{"Arial Italic"},
{"Arial Bold Italic"},
{"Courier"},
{"Courier Bold"},
{"Courier New Italic"},
{"Courier New Bold Italic"},
{"Times New Roman"},
{"Times New Roman Bold"},
{"Times New Roman Italic"},
{"Times New Roman Bold Italic"},
{"Symbol"},
{"Monaco"},
{"Andale Mono"}, // there is no bold Monaco font on standard Mac
{"Webdings"}
};
static UniChar *utfWbuf = 0;
static unsigned utfWlen = 0;
static UniChar *mac_Utf8_to_Utf16(const char *txt, int len, int *new_len)
{
unsigned wlen = fl_utf8toUtf16(txt, len, (unsigned short*)utfWbuf, utfWlen);
if (wlen >= utfWlen)
{
utfWlen = wlen + 100;
if (utfWbuf) free(utfWbuf);
utfWbuf = (UniChar*)malloc((utfWlen)*sizeof(UniChar));
wlen = fl_utf8toUtf16(txt, len, (unsigned short*)utfWbuf, utfWlen);
}
*new_len = wlen;
return utfWbuf;
} // mac_Utf8_to_Utf16
Fl_Fontdesc* Fl_X::calc_fl_fonts(void)
{
if (!fl_mac_os_version) fl_mac_os_version = calc_mac_os_version();
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
return (fl_mac_os_version >= Fl_X::CoreText_threshold ? built_in_table_PS : built_in_table_full);
#else
return built_in_table_full;
#endif
}
static Fl_Font_Descriptor* find(Fl_Font fnum, Fl_Fontsize size) {
if (!fl_fonts) fl_fonts = Fl_X::calc_fl_fonts();
Fl_Fontdesc* s = fl_fonts+fnum;
if (!s->name) s = fl_fonts; // use 0 if fnum undefined
Fl_Font_Descriptor* f;
for (f = s->first; f; f = f->next)
if (f->size == size) return f;
f = new Fl_Font_Descriptor(s->name, size);
f->next = s->first;
s->first = f;
return f;
}
////////////////////////////////////////////////////////////////
// Public interface:
void Fl_Quartz_Graphics_Driver::font(Fl_Font fnum, Fl_Fontsize size) {
if (fnum==-1) {
Fl_Graphics_Driver::font(0, 0);
return;
}
Fl_Graphics_Driver::font(fnum, size);
this->font_descriptor( find(fnum, size) );
}
int Fl_Quartz_Graphics_Driver::height() {
if (!font_descriptor()) font(FL_HELVETICA, FL_NORMAL_SIZE);
Fl_Font_Descriptor *fl_fontsize = font_descriptor();
return fl_fontsize->ascent + fl_fontsize->descent;
}
int Fl_Quartz_Graphics_Driver::descent() {
if (!font_descriptor()) font(FL_HELVETICA, FL_NORMAL_SIZE);
Fl_Font_Descriptor *fl_fontsize = font_descriptor();
return fl_fontsize->descent+1;
}
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
// returns width of a pair of UniChar's in the surrogate range
static CGFloat surrogate_width(const UniChar *txt, Fl_Font_Descriptor *fl_fontsize)
{
CTFontRef font2 = fl_fontsize->fontref;
bool must_release = false;
CGGlyph glyphs[2];
bool b = CTFontGetGlyphsForCharacters(font2, txt, glyphs, 2);
CGSize a;
if(!b) { // the current font doesn't contain this char
CFStringRef str = CFStringCreateWithCharactersNoCopy(NULL, txt, 2, kCFAllocatorNull);
// find a font that contains it
font2 = CTFontCreateForString(font2, str, CFRangeMake(0,2));
must_release = true;
CFRelease(str);
b = CTFontGetGlyphsForCharacters(font2, txt, glyphs, 2);
}
if (b) CTFontGetAdvancesForGlyphs(font2, kCTFontHorizontalOrientation, glyphs, &a, 1);
else a.width = fl_fontsize->q_width;
if(must_release) CFRelease(font2);
return a.width;
}
static CGFloat variation_selector_width(CFStringRef str16, Fl_Font_Descriptor *fl_fontsize)
{
CGFloat retval;
CFDictionarySetValue(attributes, kCTFontAttributeName, fl_fontsize->fontref);
CFAttributedStringRef mastr = CFAttributedStringCreate(kCFAllocatorDefault, str16, attributes);
CTLineRef ctline = CTLineCreateWithAttributedString(mastr);
CFRelease(mastr);
retval = CTLineGetOffsetForStringIndex(ctline, 2, NULL);
CFRelease(ctline);
return retval;
}
#endif
static double fl_mac_width(const UniChar* txt, int n, Fl_Font_Descriptor *fl_fontsize) {
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
if (fl_mac_os_version >= Fl_X::CoreText_threshold) {
double retval = 0;
UniChar uni;
int i;
for (i = 0; i < n; i++) { // loop over txt
uni = txt[i];
if (uni >= 0xD800 && uni <= 0xDBFF) { // handles the surrogate range
retval += surrogate_width(&txt[i], fl_fontsize);
i++; // because a pair of UniChar's represent a single character
continue;
}
if (i+1 < n && txt[i+1] >= 0xFE00 && txt[i+1] <= 0xFE0F) { // handles variation selectors
CFStringRef substr = CFStringCreateWithCharacters(NULL, txt + i, 2);
retval += variation_selector_width(substr, fl_fontsize);
CFRelease(substr);
i++;
continue;
}
const int block = 0x10000 / (sizeof(fl_fontsize->width)/sizeof(float*)); // block size
// r: index of the character block containing uni
unsigned int r = uni >> 7; // change 7 if sizeof(width) is changed
if (!fl_fontsize->width[r]) { // this character block has not been hit yet
//fprintf(stderr,"r=%d size=%d name=%s\n",r,fl_fontsize->size,fl_fonts[fl_font()].name);
// allocate memory to hold width of each character in the block
fl_fontsize->width[r] = (float*) malloc(sizeof(float) * block);
UniChar ii = r * block;
CGSize advance_size;
CGGlyph glyph;
for (int j = 0; j < block; j++) { // loop over the block
// ii spans all characters of this block
bool b = CTFontGetGlyphsForCharacters(fl_fontsize->fontref, &ii, &glyph, 1);
if (b)
CTFontGetAdvancesForGlyphs(fl_fontsize->fontref, kCTFontHorizontalOrientation, &glyph, &advance_size, 1);
else
advance_size.width = -1e9; // calculate this later
// the width of one character of this block of characters
fl_fontsize->width[r][j] = advance_size.width;
ii++;
}
}
// sum the widths of all characters of txt
double wdt = fl_fontsize->width[r][uni & (block-1)];
if (wdt == -1e9) {
CGSize advance_size;
CGGlyph glyph;
CTFontRef font2 = fl_fontsize->fontref;
bool must_release = false;
bool b = CTFontGetGlyphsForCharacters(font2, &uni, &glyph, 1);
if (!b) { // the current font doesn't contain this char
CFStringRef str = CFStringCreateWithCharactersNoCopy(NULL, &uni, 1, kCFAllocatorNull);
// find a font that contains it
font2 = CTFontCreateForString(font2, str, CFRangeMake(0,1));
must_release = true;
CFRelease(str);
b = CTFontGetGlyphsForCharacters(font2, &uni, &glyph, 1);
}
if (b) CTFontGetAdvancesForGlyphs(font2, kCTFontHorizontalOrientation, &glyph, &advance_size, 1);
else advance_size.width = 0.;
// the width of the 'uni' character
wdt = fl_fontsize->width[r][uni & (block-1)] = advance_size.width;
if (must_release) CFRelease(font2);
}
retval += wdt;
}
return retval;
} else {
#endif
#if HAS_ATSU
OSStatus err;
Fixed bBefore, bAfter, bAscent, bDescent;
ATSUTextLayout layout;
ByteCount iSize;
ATSUAttributeTag iTag;
ATSUAttributeValuePtr iValuePtr;
// Here's my ATSU text measuring attempt... This seems to do the Right Thing
// now collect our ATSU resources and measure our text string
layout = fl_fontsize->layout;
// activate the current GC
iSize = sizeof(CGContextRef);
iTag = kATSUCGContextTag;
iValuePtr = &fl_gc;
ATSUSetLayoutControls(layout, 1, &iTag, &iSize, &iValuePtr);
// now measure the bounding box
err = ATSUSetTextPointerLocation(layout, txt, kATSUFromTextBeginning, n, n);
err = ATSUGetUnjustifiedBounds(layout, kATSUFromTextBeginning, n, &bBefore, &bAfter, &bAscent, &bDescent);
// If err is OK then return length, else return 0. Or something...
int len = FixedToInt(bAfter);
return len;
#endif
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
}
#endif
return 0;
}
double Fl_Quartz_Graphics_Driver::width(const char* txt, int n) {
int wc_len = n;
UniChar *uniStr = mac_Utf8_to_Utf16(txt, n, &wc_len);
if (!font_descriptor()) font(FL_HELVETICA, FL_NORMAL_SIZE);
return fl_mac_width(uniStr, wc_len, font_descriptor());
}
double Fl_Quartz_Graphics_Driver::width(unsigned int wc) {
if (!font_descriptor()) font(FL_HELVETICA, FL_NORMAL_SIZE);
UniChar utf16[3];
int l = 1;
if (wc <= 0xFFFF) {
*utf16 = wc;
}
else {
// char buf[4];
// l = fl_utf8encode(wc, buf);
// l = (int)fl_utf8toUtf16(buf, l, utf16, 3);
l = (int)fl_ucs_to_Utf16(wc, utf16, 3);
}
return fl_mac_width(utf16, l, font_descriptor());
}
// text extent calculation
void Fl_Quartz_Graphics_Driver::text_extents(const char *str8, int n, int &dx, int &dy, int &w, int &h) {
if (!font_descriptor()) font(FL_HELVETICA, FL_NORMAL_SIZE);
Fl_Font_Descriptor *fl_fontsize = font_descriptor();
UniChar *txt = mac_Utf8_to_Utf16(str8, n, &n);
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
if (fl_mac_os_version >= Fl_X::CoreText_threshold) {
CFStringRef str16 = CFStringCreateWithCharactersNoCopy(NULL, txt, n, kCFAllocatorNull);
CFDictionarySetValue (attributes, kCTFontAttributeName, fl_fontsize->fontref);
CFAttributedStringRef mastr = CFAttributedStringCreate(kCFAllocatorDefault, str16, attributes);
CFRelease(str16);
CTLineRef ctline = CTLineCreateWithAttributedString(mastr);
CFRelease(mastr);
CGContextSetTextPosition(fl_gc, 0, 0);
CGContextSetShouldAntialias(fl_gc, true);
CGRect rect = CTLineGetImageBounds(ctline, fl_gc);
CGContextSetShouldAntialias(fl_gc, false);
CFRelease(ctline);
dx = floor(rect.origin.x + 0.5);
dy = floor(- rect.origin.y - rect.size.height + 0.5);
w = rect.size.width + 0.5;
h = rect.size.height + 0.5;
}
else {
#endif
#if HAS_ATSU
OSStatus err;
ATSUTextLayout layout;
ByteCount iSize;
ATSUAttributeTag iTag;
ATSUAttributeValuePtr iValuePtr;
// Here's my ATSU text measuring attempt... This seems to do the Right Thing
// now collect our ATSU resources and measure our text string
layout = fl_fontsize->layout;
// activate the current GC
iSize = sizeof(CGContextRef);
iTag = kATSUCGContextTag;
iValuePtr = &fl_gc;
ATSUSetLayoutControls(layout, 1, &iTag, &iSize, &iValuePtr);
// now measure the bounding box
err = ATSUSetTextPointerLocation(layout, txt, kATSUFromTextBeginning, n, n);
Rect bbox;
err = ATSUMeasureTextImage(layout, kATSUFromTextBeginning, n, 0, 0, &bbox);
w = bbox.right - bbox.left;
h = bbox.bottom - bbox.top;
dx = bbox.left;
dy = -bbox.bottom;
//printf("r: %d l: %d t: %d b: %d w: %d h: %d\n", bbox.right, bbox.left, bbox.top, bbox.bottom, w, h);
#endif
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
}
#endif
return;
} // fl_text_extents
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
static CGColorRef flcolortocgcolor(Fl_Color i)
{
uchar r, g, b;
Fl::get_color(i, r, g, b);
CGFloat components[4] = {r/255.0f, g/255.0f, b/255.0f, 1.};
static CGColorSpaceRef cspace = NULL;
if (cspace == NULL) {
cspace = CGColorSpaceCreateWithName(kCGColorSpaceGenericRGB);
}
return CGColorCreate(cspace, components);
}
#endif
static void fl_mac_draw(const char *str, int n, float x, float y, Fl_Graphics_Driver *driver) {
// convert to UTF-16 first
UniChar *uniStr = mac_Utf8_to_Utf16(str, n, &n);
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
if (fl_mac_os_version >= Fl_X::CoreText_threshold) {
CFMutableStringRef str16 = CFStringCreateMutableWithExternalCharactersNoCopy(NULL, uniStr, n, n, kCFAllocatorNull);
if (str16 == NULL) return; // shd not happen
CGColorRef color = flcolortocgcolor(driver->color());
CFDictionarySetValue (attributes, kCTFontAttributeName, driver->font_descriptor()->fontref);
CFDictionarySetValue (attributes, kCTForegroundColorAttributeName, color);
CFAttributedStringRef mastr = CFAttributedStringCreate(kCFAllocatorDefault, str16, attributes);
CFRelease(str16);
CFRelease(color);
CTLineRef ctline = CTLineCreateWithAttributedString(mastr);
CFRelease(mastr);
CGContextSetTextMatrix(fl_gc, font_mx);
CGContextSetTextPosition(fl_gc, x, y);
CGContextSetShouldAntialias(fl_gc, true);
CTLineDraw(ctline, fl_gc);
CGContextSetShouldAntialias(fl_gc, false);
CFRelease(ctline);
} else {
#endif
#if HAS_ATSU
OSStatus err;
// now collect our ATSU resources
ATSUTextLayout layout = driver->font_descriptor()->layout;
ByteCount iSize = sizeof(CGContextRef);
ATSUAttributeTag iTag = kATSUCGContextTag;
ATSUAttributeValuePtr iValuePtr=&fl_gc;
ATSUSetLayoutControls(layout, 1, &iTag, &iSize, &iValuePtr);
err = ATSUSetTextPointerLocation(layout, uniStr, kATSUFromTextBeginning, n, n);
CGContextSetShouldAntialias(fl_gc, true);
err = ATSUDrawText(layout, kATSUFromTextBeginning, n, FloatToFixed(x), FloatToFixed(y));
CGContextSetShouldAntialias(fl_gc, false);
#endif
#if MAC_OS_X_VERSION_MAX_ALLOWED >= MAC_OS_X_VERSION_10_5
}
#endif
}
void Fl_Quartz_Graphics_Driver::draw(const char *str, int n, float x, float y) {
// avoid a crash if no font has been selected by user yet !
if (!font_descriptor()) font(FL_HELVETICA, FL_NORMAL_SIZE);
fl_mac_draw(str, n, x, y, this);
}
void Fl_Quartz_Graphics_Driver::draw(const char* str, int n, int x, int y) {
// avoid a crash if no font has been selected by user yet !
if (!font_descriptor()) font(FL_HELVETICA, FL_NORMAL_SIZE);
fl_mac_draw(str, n, (float)x-0.0f, (float)y+0.5f, this);
}
void Fl_Quartz_Graphics_Driver::draw(int angle, const char *str, int n, int x, int y) {
CGContextSaveGState(fl_gc);
CGContextTranslateCTM(fl_gc, x, y);
CGContextRotateCTM(fl_gc, - angle*(M_PI/180) );
draw(str, n, 0, 0);
CGContextRestoreGState(fl_gc);
}
void Fl_Quartz_Graphics_Driver::rtl_draw(const char* c, int n, int x, int y) {
int dx, dy, w, h;
text_extents(c, n, dx, dy, w, h);
draw(c, n, x - w - dx, y);
}
//
// End of "$Id$".
//