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authorYuval Adam <yuv.adm@gmail.com>2014-08-08 14:42:07 +0300
committerYuval Adam <yuv.adm@gmail.com>2014-08-08 14:42:07 +0300
commita6163888f3c56123b1db313743c6147ba498732c (patch)
treeff7d15d991d1d09ba6cbc0cec80924f57445bfdd /third_party/windows/fltk-1.1.10/src/fl_font_x.cxx
parentc3e4c9a25c2910d2d66d52215b3406b13d5b23d5 (diff)
Add third_party libs
Diffstat (limited to 'third_party/windows/fltk-1.1.10/src/fl_font_x.cxx')
-rw-r--r--third_party/windows/fltk-1.1.10/src/fl_font_x.cxx269
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diff --git a/third_party/windows/fltk-1.1.10/src/fl_font_x.cxx b/third_party/windows/fltk-1.1.10/src/fl_font_x.cxx
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+++ b/third_party/windows/fltk-1.1.10/src/fl_font_x.cxx
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+//
+// "$Id: fl_font_x.cxx 5421 2006-09-05 11:26:41Z matt $"
+//
+// Standard X11 font selection code for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2005 by Bill Spitzak and others.
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+// USA.
+//
+// Please report all bugs and problems on the following page:
+//
+// http://www.fltk.org/str.php
+//
+
+Fl_FontSize::Fl_FontSize(const char* name) {
+ font = XLoadQueryFont(fl_display, name);
+ if (!font) {
+ Fl::warning("bad font: %s", name);
+ font = XLoadQueryFont(fl_display, "fixed"); // if fixed fails we crash
+ }
+# if HAVE_GL
+ listbase = 0;
+# endif
+}
+
+Fl_FontSize* fl_fontsize;
+
+Fl_FontSize::~Fl_FontSize() {
+# if HAVE_GL
+// 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_fontsize) fl_fontsize = 0;
+ XFreeFont(fl_display, font);
+}
+
+////////////////////////////////////////////////////////////////
+
+// WARNING: if you add to this table, you must redefine FL_FREE_FONT
+// in Enumerations.H & recompile!!
+static Fl_Fontdesc built_in_table[] = {
+{"-*-helvetica-medium-r-normal--*"},
+{"-*-helvetica-bold-r-normal--*"},
+{"-*-helvetica-medium-o-normal--*"},
+{"-*-helvetica-bold-o-normal--*"},
+{"-*-courier-medium-r-normal--*"},
+{"-*-courier-bold-r-normal--*"},
+{"-*-courier-medium-o-normal--*"},
+{"-*-courier-bold-o-normal--*"},
+{"-*-times-medium-r-normal--*"},
+{"-*-times-bold-r-normal--*"},
+{"-*-times-medium-i-normal--*"},
+{"-*-times-bold-i-normal--*"},
+{"-*-symbol-*"},
+{"-*-lucidatypewriter-medium-r-normal-sans-*"},
+{"-*-lucidatypewriter-bold-r-normal-sans-*"},
+{"-*-*zapf dingbats-*"}
+};
+
+Fl_Fontdesc* fl_fonts = built_in_table;
+
+#define MAXSIZE 32767
+
+// return dash number N, or pointer to ending null if none:
+const char* fl_font_word(const char* p, int n) {
+ while (*p) {if (*p=='-') {if (!--n) break;} p++;}
+ return p;
+}
+
+// return a pointer to a number we think is "point size":
+char* fl_find_fontsize(char* name) {
+ char* c = name;
+ // for standard x font names, try after 7th dash:
+ if (*c == '-') {
+ c = (char*)fl_font_word(c,7);
+ if (*c++ && isdigit(*c)) return c;
+ return 0; // malformed x font name?
+ }
+ char* r = 0;
+ // find last set of digits:
+ for (c++;* c; c++)
+ if (isdigit(*c) && !isdigit(*(c-1))) r = c;
+ return r;
+}
+
+const char* fl_encoding = "iso8859-1";
+
+// return true if this matches fl_encoding:
+int fl_correct_encoding(const char* name) {
+ if (*name != '-') return 0;
+ const char* c = fl_font_word(name,13);
+ return (*c++ && !strcmp(c,fl_encoding));
+}
+
+// locate or create an Fl_FontSize for a given Fl_Fontdesc and size:
+static Fl_FontSize* find(int fnum, int size) {
+ Fl_Fontdesc* s = fl_fonts+fnum;
+ if (!s->name) s = fl_fonts; // use font 0 if still undefined
+ Fl_FontSize* f;
+ for (f = s->first; f; f = f->next)
+ if (f->minsize <= size && f->maxsize >= size) return f;
+ fl_open_display();
+ if (!s->xlist) {
+ s->xlist = XListFonts(fl_display, s->name, 100, &(s->n));
+ if (!s->xlist) { // use fixed if no matching font...
+ s->first = new Fl_FontSize("fixed");
+ s->first->minsize = 0;
+ s->first->maxsize = 32767;
+ return s->first;
+ }
+ }
+ // search for largest <= font size:
+ char* name = s->xlist[0]; int ptsize = 0; // best one found so far
+ int matchedlength = 32767;
+ char namebuffer[1024]; // holds scalable font name
+ int found_encoding = 0;
+ int m = s->n; if (m<0) m = -m;
+ for (int n=0; n < m; n++) {
+
+ char* thisname = s->xlist[n];
+ if (fl_correct_encoding(thisname)) {
+ if (!found_encoding) ptsize = 0; // force it to choose this
+ found_encoding = 1;
+ } else {
+ if (found_encoding) continue;
+ }
+ char* c = fl_find_fontsize(thisname);
+ int thissize = c ? atoi(c) : MAXSIZE;
+ int thislength = strlen(thisname);
+ if (thissize == size && thislength < matchedlength) {
+ // exact match, use it:
+ name = thisname;
+ ptsize = size;
+ matchedlength = thislength;
+ } else if (!thissize && ptsize!=size) {
+ // whoa! A scalable font! Use unless exact match found:
+ int l = c-thisname;
+ memcpy(namebuffer,thisname,l);
+ l += sprintf(namebuffer+l,"%d",size);
+ while (*c == '0') c++;
+ strcpy(namebuffer+l,c);
+ name = namebuffer;
+ ptsize = size;
+ } else if (!ptsize || // no fonts yet
+ thissize < ptsize && ptsize > size || // current font too big
+ thissize > ptsize && thissize <= size // current too small
+ ) {
+ name = thisname; ptsize = thissize;
+ matchedlength = thislength;
+ }
+ }
+
+ if (ptsize != size) { // see if we already found this unscalable font:
+ for (f = s->first; f; f = f->next) {
+ if (f->minsize <= ptsize && f->maxsize >= ptsize) {
+ if (f->minsize > size) f->minsize = size;
+ if (f->maxsize < size) f->maxsize = size;
+ return f;
+ }
+ }
+ }
+
+ // okay, we definately have some name, make the font:
+ f = new Fl_FontSize(name);
+ if (ptsize < size) {f->minsize = ptsize; f->maxsize = size;}
+ else {f->minsize = size; f->maxsize = ptsize;}
+ f->next = s->first;
+ s->first = f;
+ return f;
+
+}
+
+////////////////////////////////////////////////////////////////
+// Public interface:
+
+int fl_font_ = 0;
+int fl_size_ = 0;
+XFontStruct* fl_xfont = 0;
+void *fl_xftfont = 0;
+static GC font_gc;
+
+void fl_font(int fnum, int size) {
+ if (fnum==-1) {
+ fl_font_ = 0; fl_size_ = 0;
+ return;
+ }
+ if (fnum == fl_font_ && size == fl_size_) return;
+ fl_font_ = fnum; fl_size_ = size;
+ Fl_FontSize* f = find(fnum, size);
+ if (f != fl_fontsize) {
+ fl_fontsize = f;
+ fl_xfont = f->font;
+ font_gc = 0;
+ }
+}
+
+int fl_height() {
+ if (fl_xfont) return (fl_xfont->ascent + fl_xfont->descent);
+ else return -1;
+}
+
+int fl_descent() {
+ if (fl_xfont) return fl_xfont->descent;
+ else return -1;
+}
+
+double fl_width(const char* c, int n) {
+ if (!fl_xfont) return -1.0;
+ XCharStruct* p = fl_xfont->per_char;
+ if (!p) return n*fl_xfont->min_bounds.width;
+ int a = fl_xfont->min_char_or_byte2;
+ int b = fl_xfont->max_char_or_byte2 - a;
+ int w = 0;
+ while (n--) {
+ int x = *(uchar*)c++ - a;
+ if (x >= 0 && x <= b) w += p[x].width;
+ else w += fl_xfont->min_bounds.width;
+ }
+ return w;
+}
+
+double fl_width(uchar c) {
+ if (!fl_xfont) return -1;
+ XCharStruct* p = fl_xfont->per_char;
+ if (p) {
+ int a = fl_xfont->min_char_or_byte2;
+ int b = fl_xfont->max_char_or_byte2 - a;
+ int x = c-a;
+ if (x >= 0 && x <= b) return p[x].width;
+ }
+ return fl_xfont->min_bounds.width;
+}
+
+void fl_draw(const char* str, int n, int x, int y) {
+ if (font_gc != fl_gc) {
+ if (!fl_xfont) fl_font(FL_HELVETICA, 14);
+ font_gc = fl_gc;
+ XSetFont(fl_display, fl_gc, fl_xfont->fid);
+ }
+ XDrawString(fl_display, fl_window, fl_gc, x, y, str, n);
+}
+
+void fl_draw(const char* str, int n, float x, float y) {
+ fl_draw(str, n, (int)x, (int)y);
+}
+
+//
+// End of "$Id: fl_font_x.cxx 5421 2006-09-05 11:26:41Z matt $".
+//