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authorMatthias Melcher <fltk@matthiasm.com>2016-01-24 20:58:12 +0000
committerMatthias Melcher <fltk@matthiasm.com>2016-01-24 20:58:12 +0000
commit6a12d167508ec8fb8747e480a12813dbef421586 (patch)
treee590d9646d596aaf7efd6a5f2afa7ee068bcffe5 /src/fl_font_mac.cxx
parent60c114ba3bd15fe97745945945d1e6d8329723bb (diff)
Extracting OpenGL text calls. This is a minimum implementation for testing. Don;t worry. I have a cunning plan for rendering perfect antialiased text into OpenGL contexts quickly on all platforms.
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11048 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
Diffstat (limited to 'src/fl_font_mac.cxx')
-rw-r--r--src/fl_font_mac.cxx586
1 files changed, 0 insertions, 586 deletions
diff --git a/src/fl_font_mac.cxx b/src/fl_font_mac.cxx
deleted file mode 100644
index 1ab6f3bf6..000000000
--- a/src/fl_font_mac.cxx
+++ /dev/null
@@ -1,586 +0,0 @@
-//
-// "$Id$"
-//
-// 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 "$Id$".
-//