]> git.lyx.org Git - lyx.git/blobdiff - src/font.C
fix typo that put too many include paths for most people
[lyx.git] / src / font.C
index 1590c72b551baede827d1d1305e2ba64df88966c..f9bcb0ec805d438820f6b013f51266ac3675dbea 100644 (file)
@@ -1,15 +1,32 @@
+/* This file is part of
+ * ======================================================
+ *
+ *           LyX, The Document Processor
+ *
+ *           Copyright 1995 Matthias Ettrich
+ *           Copyright 1995-2001 The LyX Team.
+ *
+ * ====================================================== */
+
 #include <config.h>
 
-#include <cctype>
+#ifdef __GNUG__
+#pragma implementation
+#endif
 
+#include "support/lstrings.h"
 #include "font.h"
 #include "FontLoader.h"
 #include "lyxrc.h"
+#include "encoding.h"
+#include "language.h"
+
+#include <boost/smart_ptr.hpp>
 
-extern LyXRC lyxrc;
 
-// namespace {
-static inline
+namespace {
+
+inline
 XFontStruct * getXFontstruct(LyXFont const & f)
 {
        return fontloader.load(f.family(), f.series(),
@@ -17,12 +34,13 @@ XFontStruct * getXFontstruct(LyXFont const & f)
 }
 
 
-static inline
+inline
 XID getFontID(LyXFont const & f)
 {
        return getXFontstruct(f)->fid;
 }
-// } // end of anon namespace
+
+} // namespace anon
 
 int lyxfont::maxAscent(LyXFont const & f)
 {
@@ -42,7 +60,7 @@ int lyxfont::ascent(char c, LyXFont const & f)
        unsigned int uc = static_cast<unsigned char>(c);
        if (finfo->per_char
            && uc >= finfo->min_char_or_byte2
-           && uc <= finfo->max_char_or_byte2
+           && uc <= finfo->max_char_or_byte2+256*finfo->max_byte1)
                return finfo->per_char[uc - finfo->min_char_or_byte2].ascent;
        else
                return finfo->ascent;
@@ -55,7 +73,7 @@ int lyxfont::descent(char c, LyXFont const & f)
        unsigned int uc = static_cast<unsigned char>(c);
        if (finfo->per_char
            && uc >= finfo->min_char_or_byte2
-           && uc <= finfo->max_char_or_byte2
+           && uc <= finfo->max_char_or_byte2+256*finfo->max_byte1)
                return finfo->per_char[uc - finfo->min_char_or_byte2].descent;
        else
                return finfo->descent;
@@ -68,7 +86,7 @@ int lyxfont::lbearing(char c, LyXFont const & f)
        unsigned int uc = static_cast<unsigned char>(c);
        if (finfo->per_char
            && uc >= finfo->min_char_or_byte2
-           && uc <= finfo->max_char_or_byte2
+           && uc <= finfo->max_char_or_byte2+256*finfo->max_byte1)
                return finfo->per_char[uc - finfo->min_char_or_byte2].lbearing;
        else
                return 0;
@@ -81,79 +99,139 @@ int lyxfont::rbearing(char c, LyXFont const & f)
        unsigned int uc = static_cast<unsigned char>(c);
        if (finfo->per_char
            && uc >= finfo->min_char_or_byte2
-           && uc <= finfo->max_char_or_byte2
+           && uc <= finfo->max_char_or_byte2+256*finfo->max_byte1)
                return finfo->per_char[uc - finfo->min_char_or_byte2].rbearing;
        else
                return width(c, f);
 }
 
 
-int lyxfont::width(char c, LyXFont const & f)
+int lyxfont::width(char const * s, size_t n, LyXFont const & f)
 {
+       if (!lyxrc.use_gui)
+               return n;
+
+       if (lyxrc.font_norm_type == LyXRC::ISO_10646_1) {
+               boost::scoped_array<XChar2b> xs(new XChar2b[n]);
+               Encoding const * encoding = f.language()->encoding();
+               LyXFont font(f);
+               if (f.isSymbolFont()) {
+#ifdef USE_UNICODE_FOR_SYMBOLS
+                       font.setFamily(LyXFont::ROMAN_FAMILY);
+                       font.setShape(LyXFont::UP_SHAPE);
+#endif
+                       encoding = encodings.symbol_encoding();
+               }
+               for (size_t i = 0; i < n; ++i) {
+                       Uchar c = encoding->ucs(s[i]);
+                       xs[i].byte1 = c >> 8;
+                       xs[i].byte2 = c & 0xff;
+               }
+               int result = width(xs.get(), n, font);
+               return result;
+       }
+
        if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
-               return lyxrc.use_gui ? ::XTextWidth(getXFontstruct(f), &c, 1)
-                       : 1;
+               return ::XTextWidth(getXFontstruct(f), s, n);
        } else {
+               // emulate smallcaps since X doesn't support this
+               unsigned int result = 0;
                LyXFont smallfont(f);
                smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
-               if (islower(static_cast<unsigned char>(c))) {
-                       c = toupper(c);
-                       return ::XTextWidth(getXFontstruct(smallfont), &c, 1);
-               } else {
-                       return ::XTextWidth(getXFontstruct(f), &c, 1);
+               for (size_t i = 0; i < n; ++i) {
+                       char const c = uppercase(s[i]);
+                       if (c != s[i]) {
+                               result += ::XTextWidth(getXFontstruct(smallfont), &c, 1);
+                       } else {
+                               result += ::XTextWidth(getXFontstruct(f), &c, 1);
+                       }
                }
+               return result;
        }
 }
 
 
-int lyxfont::width(char const * s, int n, LyXFont const & f)
+int lyxfont::signedWidth(string const & s, LyXFont const & f)
+{
+       if (s.empty())
+               return 0;
+       if (s[0] == '-')
+               return -width(s.substr(1, s.length() - 1), f);
+       else
+               return width(s, f);
+}
+
+
+//int lyxfont::width(wstring const & s, int n, LyXFont const & f)
+int lyxfont::width(XChar2b const * s, int n, LyXFont const & f)
 {
        if (!lyxrc.use_gui)
                return n;
-       
+
        if (f.realShape() != LyXFont::SMALLCAPS_SHAPE) {
-               return ::XTextWidth(getXFontstruct(f), s, n);
+               return ::XTextWidth16(getXFontstruct(f), s, n);
        } else {
                // emulate smallcaps since X doesn't support this
                unsigned int result = 0;
-               char c;
+               static XChar2b c;
                LyXFont smallfont(f);
                smallfont.decSize().decSize().setShape(LyXFont::UP_SHAPE);
                for (int i = 0; i < n; ++i) {
-                       c = s[i];
-                       // when islower is a macro, the cast is needed (JMarc)
-                       if (islower(static_cast<unsigned char>(c))) {
-                               c = toupper(c);
-                               result += ::XTextWidth(getXFontstruct(smallfont), &c, 1);
-                       } else {
-                               result += ::XTextWidth(getXFontstruct(f), &c, 1);
+                       if (s[i].byte1)
+                               c = s[i];
+                       else {
+                               c.byte1 = s[i].byte1;
+                               c.byte2 = uppercase(s[i].byte2);
                        }
+                       if (c.byte2 != s[i].byte2) {
+                               result += ::XTextWidth16(getXFontstruct(smallfont), &c, 1);
+                       } else {
+                               result += ::XTextWidth16(getXFontstruct(f), &s[i], 1);
+               }
                }
                return result;
        }
 }
 
-
-int lyxfont::signedWidth(string const & s, LyXFont const & f)
+int lyxfont::XTextWidth(LyXFont const & f, char const * str, int count)
 {
-       if (s.empty()) return 0;
-       if (s.c_str()[0] == '-')
-               return -width(s.c_str() + 1, s.length() - 1, f);
-       else
-               return width(s.c_str(), s.length(), f);
+       return ::XTextWidth(getXFontstruct(f), str, count);
 }
 
 
-int lyxfont::XTextWidth(LyXFont const & f, char * str, int count)
+int lyxfont::XTextWidth16(LyXFont const & f, XChar2b const * str, int count)
 {
-       return ::XTextWidth(getXFontstruct(f), str, count);
+       return ::XTextWidth16(getXFontstruct(f), str, count);
 }
 
 
-void lyxfont::XSetFont(Display * display, GC gc, LyXFont const & f) 
+void lyxfont::XSetFont(Display * display, GC gc, LyXFont const & f)
 {
        ::XSetFont(display, gc, getFontID(f));
 }
 
+
+void lyxfont::rectText(string const & str, LyXFont const & font,
+             int & width, int & ascent, int & descent)
+{
+       static int const d = 2;
+       width = lyxfont::width(str, font) + d * 2 + 2;
+       ascent = lyxfont::maxAscent(font) + d;
+       descent = lyxfont::maxDescent(font) + d;
+}
+
+
+
+void lyxfont::buttonText(string const & str, LyXFont const & font,
+               int & width, int & ascent, int & descent)
+{
+       static int const d = 3;
+
+       width = lyxfont::width(str, font) + d * 2 + 2;
+       ascent = lyxfont::maxAscent(font) + d;
+       descent = lyxfont::maxDescent(font) + d;
+}
+
+
 //} // end of namespace font
 //} // end of namespace lyx