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Files
wmaker/WINGs/wfont.c
2001-03-14 02:54:54 +00:00

592 lines
11 KiB
C

#include "WINGsP.h"
#include <wraster.h>
#include <assert.h>
#include <X11/Xlocale.h>
static char *makeFontSetOfSize(char *fontset, int size);
/* XLFD pattern matching */
static char*
xlfd_get_element (const char *xlfd, int index)
{
const char *p = xlfd;
while (*p != 0) {
if (*p == '-' && --index == 0) {
const char *end = strchr(p + 1, '-');
char *buf;
size_t len;
if (end == 0) end = p + strlen(p);
len = end - (p + 1);
buf = wmalloc(len);
memcpy(buf, p + 1, len);
buf[len] = 0;
return buf;
}
p++;
}
return strdup("*");
}
/* XLFD pattern matching */
static char*
generalize_xlfd (const char *xlfd)
{
char *buf;
int len;
char *weight = xlfd_get_element(xlfd, 3);
char *slant = xlfd_get_element(xlfd, 4);
char *pxlsz = xlfd_get_element(xlfd, 7);
#define Xstrlen(A) ((A)?strlen(A):0)
len = Xstrlen(xlfd)+Xstrlen(weight)+Xstrlen(slant)+Xstrlen(pxlsz)*2+50;
#undef Xstrlen
buf = wmalloc(len + 1);
snprintf(buf, len + 1, "%s,-*-*-%s-%s-*-*-%s-*-*-*-*-*-*-*,"
"-*-*-*-*-*-*-%s-*-*-*-*-*-*-*,*",
xlfd, weight, slant, pxlsz, pxlsz);
wfree(pxlsz);
wfree(slant);
wfree(weight);
return buf;
}
/* XLFD pattern matching */
static XFontSet
W_CreateFontSetWithGuess(Display *dpy, char *xlfd, char ***missing,
int *nmissing, char **def_string)
{
XFontSet fs = XCreateFontSet(dpy, xlfd, missing, nmissing, def_string);
if (fs != NULL && *nmissing == 0) return fs;
/* for non-iso8859-1 language and iso8859-1 specification
(this fontset is only for pattern analysis) */
if (fs == NULL) {
char *old_locale = setlocale(LC_CTYPE, NULL);
if (*nmissing != 0) XFreeStringList(*missing);
setlocale(LC_CTYPE, "C");
fs = XCreateFontSet(dpy, xlfd, missing, nmissing, def_string);
setlocale(LC_CTYPE, old_locale);
}
/* make XLFD font name for pattern analysis */
if (fs != NULL) {
XFontStruct **fontstructs;
char **fontnames;
if (XFontsOfFontSet(fs, &fontstructs, &fontnames) > 0)
xlfd = fontnames[0];
}
xlfd = generalize_xlfd (xlfd);
if (*nmissing != 0) XFreeStringList(*missing);
if (fs != 0) XFreeFontSet(dpy, fs);
fs = XCreateFontSet(dpy, xlfd, missing, nmissing, def_string);
wfree(xlfd);
return fs;
}
WMFont*
WMCreateFontSet(WMScreen *scrPtr, char *fontName)
{
WMFont *font;
Display *display = scrPtr->display;
char **missing;
int nmissing = 0;
char *defaultString;
XFontSetExtents *extents;
font = WMHashGet(scrPtr->fontCache, fontName);
if (font) {
WMRetainFont(font);
return font;
}
font = malloc(sizeof(WMFont));
if (!font)
return NULL;
memset(font, 0, sizeof(WMFont));
font->notFontSet = 0;
font->screen = scrPtr;
font->font.set = W_CreateFontSetWithGuess(display, fontName, &missing,
&nmissing, &defaultString);
if (nmissing > 0 && font->font.set) {
int i;
wwarning("the following character sets are missing in %s:",
fontName);
for (i = 0; i < nmissing; i++) {
wwarning(missing[i]);
}
XFreeStringList(missing);
if (defaultString)
wwarning("the string \"%s\" will be used in place of any characters from those sets.",
defaultString);
}
if (!font->font.set) {
wfree(font);
return NULL;
}
extents = XExtentsOfFontSet(font->font.set);
font->height = extents->max_logical_extent.height;
font->y = font->height - (font->height + extents->max_logical_extent.y);
font->refCount = 1;
font->name = wstrdup(fontName);
assert(WMHashInsert(scrPtr->fontCache, font->name, font)==NULL);
return font;
}
WMFont*
WMCreateNormalFont(WMScreen *scrPtr, char *fontName)
{
WMFont *font;
Display *display = scrPtr->display;
char *fname, *ptr;
if ((ptr = strchr(fontName, ','))) {
fname = wmalloc(ptr - fontName + 1);
strncpy(fname, fontName, ptr - fontName);
fname[ptr - fontName] = 0;
} else {
fname = wstrdup(fontName);
}
font = WMHashGet(scrPtr->fontCache, fname);
if (font) {
WMRetainFont(font);
wfree(fname);
return font;
}
font = malloc(sizeof(WMFont));
if (!font) {
wfree(fname);
return NULL;
}
memset(font, 0, sizeof(WMFont));
font->notFontSet = 1;
font->screen = scrPtr;
font->font.normal = XLoadQueryFont(display, fname);
if (!font->font.normal) {
wfree(font);
return NULL;
}
font->height = font->font.normal->ascent+font->font.normal->descent;
font->y = font->font.normal->ascent;
font->refCount = 1;
font->name = fname;
assert(WMHashInsert(scrPtr->fontCache, font->name, font)==NULL);
return font;
}
WMFont*
WMCreateFont(WMScreen *scrPtr, char *fontName)
{
if (scrPtr->useMultiByte)
return WMCreateFontSet(scrPtr, fontName);
else
return WMCreateNormalFont(scrPtr, fontName);
}
WMFont*
WMRetainFont(WMFont *font)
{
wassertrv(font!=NULL, NULL);
font->refCount++;
return font;
}
void
WMReleaseFont(WMFont *font)
{
wassertr(font!=NULL);
font->refCount--;
if (font->refCount < 1) {
if (font->notFontSet)
XFreeFont(font->screen->display, font->font.normal);
else {
XFreeFontSet(font->screen->display, font->font.set);
}
if (font->name) {
WMHashRemove(font->screen->fontCache, font->name);
wfree(font->name);
}
wfree(font);
}
}
unsigned int
WMFontHeight(WMFont *font)
{
wassertrv(font!=NULL, 0);
return font->height;
}
WMFont*
WMSystemFontOfSize(WMScreen *scrPtr, int size)
{
WMFont *font;
char *fontSpec;
fontSpec = makeFontSetOfSize(WINGsConfiguration.systemFont, size);
if (scrPtr->useMultiByte)
font = WMCreateFontSet(scrPtr, fontSpec);
else
font = WMCreateNormalFont(scrPtr, fontSpec);
if (!font) {
if (scrPtr->useMultiByte) {
wwarning("could not load font set %s. Trying fixed.", fontSpec);
font = WMCreateFontSet(scrPtr, "fixed");
if (!font) {
font = WMCreateFontSet(scrPtr, "-*-fixed-medium-r-normal-*-14-*-*-*-*-*-*-*");
}
} else {
wwarning("could not load font %s. Trying fixed.", fontSpec);
font = WMCreateNormalFont(scrPtr, "fixed");
}
if (!font) {
wwarning("could not load fixed font!");
wfree(fontSpec);
return NULL;
}
}
wfree(fontSpec);
return font;
}
WMFont*
WMBoldSystemFontOfSize(WMScreen *scrPtr, int size)
{
WMFont *font;
char *fontSpec;
fontSpec = makeFontSetOfSize(WINGsConfiguration.boldSystemFont, size);
if (scrPtr->useMultiByte)
font = WMCreateFontSet(scrPtr, fontSpec);
else
font = WMCreateNormalFont(scrPtr, fontSpec);
if (!font) {
if (scrPtr->useMultiByte) {
wwarning("could not load font set %s. Trying fixed.", fontSpec);
font = WMCreateFontSet(scrPtr, "fixed");
if (!font) {
font = WMCreateFontSet(scrPtr, "-*-fixed-medium-r-normal-*-14-*-*-*-*-*-*-*");
}
} else {
wwarning("could not load font %s. Trying fixed.", fontSpec);
font = WMCreateNormalFont(scrPtr, "fixed");
}
if (!font) {
wwarning("could not load fixed font!");
wfree(fontSpec);
return NULL;
}
}
wfree(fontSpec);
return font;
}
XFontSet
WMGetFontFontSet(WMFont *font)
{
wassertrv(font!=NULL, NULL);
if (font->notFontSet)
return NULL;
else
return font->font.set;
}
int
WMWidthOfString(WMFont *font, char *text, int length)
{
wassertrv(font!=NULL, 0);
wassertrv(text!=NULL, 0);
if (font->notFontSet)
return XTextWidth(font->font.normal, text, length);
else {
XRectangle rect;
XRectangle AIXsucks;
XmbTextExtents(font->font.set, text, length, &AIXsucks, &rect);
return rect.width;
}
}
void
WMDrawString(WMScreen *scr, Drawable d, GC gc, WMFont *font, int x, int y,
char *text, int length)
{
wassertr(font!=NULL);
if (font->notFontSet) {
XSetFont(scr->display, gc, font->font.normal->fid);
XDrawString(scr->display, d, gc, x, y + font->y, text, length);
} else {
XmbDrawString(scr->display, d, font->font.set, gc, x, y + font->y,
text, length);
}
}
void
WMDrawImageString(WMScreen *scr, Drawable d, GC gc, WMFont *font, int x, int y,
char *text, int length)
{
wassertr(font != NULL);
if (font->notFontSet) {
XSetFont(scr->display, gc, font->font.normal->fid);
XDrawImageString(scr->display, d, gc, x, y + font->y, text, length);
} else {
XmbDrawImageString(scr->display, d, font->font.set, gc, x, y + font->y,
text, length);
}
}
static char*
makeFontSetOfSize(char *fontset, int size)
{
char font[300], *f;
char *newfs = NULL;
char *ptr;
do {
char *tmp;
int end;
f = fontset;
ptr = strchr(fontset, ',');
if (ptr) {
int count = ptr-fontset;
if (count > 255) {
wwarning("font description %s is too large.", fontset);
} else {
memcpy(font, fontset, count);
font[count] = 0;
f = (char*)font;
}
}
if (newfs)
end = strlen(newfs);
else
end = 0;
tmp = wmalloc(end + strlen(f) + 8);
if (end != 0) {
sprintf(tmp, "%s,", newfs);
sprintf(tmp + end + 1, f, size);
} else {
sprintf(tmp + end, f, size);
}
if (newfs)
wfree(newfs);
newfs = tmp;
fontset = ptr+1;
} while (ptr!=NULL);
return newfs;
}
static void
changeFontProp(char *fname, char *newprop, int which)
{
char before[128], prop[128], after[128];
char *ptr, *bptr;
int part=0;
if(!fname || !prop)
return;
ptr = fname;
bptr = before;
while (*ptr) {
if(*ptr == '-') {
*bptr = 0;
if(part==which) bptr = prop;
else if(part==which+1) bptr = after;
*bptr++ = *ptr;
part++;
} else {
*bptr++ = *ptr;
} ptr++;
}*bptr = 0;
snprintf(fname, 255, "%s-%s%s", before, newprop, after);
}
WMFont *
WMNormalizeFont(WMScreen *scr, WMFont *font)
{
WMFont *newfont=NULL;
char fname[256];
if(!scr || !font)
return NULL;
snprintf(fname, 255, font->name);
changeFontProp(fname, "medium", 2);
changeFontProp(fname, "r", 3);
newfont = WMCreateNormalFont(scr, fname);
if(!newfont)
return NULL;
return newfont;
}
WMFont *
WMStrengthenFont(WMScreen *scr, WMFont *font)
{
WMFont *newfont=NULL;
char fname[256];
if(!scr || !font)
return NULL;
snprintf(fname, 255, font->name);
changeFontProp(fname, "bold", 2);
newfont = WMCreateNormalFont(scr, fname);
if(!newfont)
return NULL;
return newfont;
}
WMFont *
WMUnstrengthenFont(WMScreen *scr, WMFont *font)
{
WMFont *newfont=NULL;
char fname[256];
if(!scr || !font)
return NULL;
snprintf(fname, 255, font->name);
changeFontProp(fname, "medium", 2);
newfont = WMCreateNormalFont(scr, fname);
if(!newfont)
return NULL;
return newfont;
}
WMFont *
WMEmphasizeFont(WMScreen *scr, WMFont *font)
{
WMFont *newfont=NULL;
char fname[256];
if(!scr || !font)
return NULL;
snprintf(fname, 255, font->name);
changeFontProp(fname, "o", 3);
newfont = WMCreateNormalFont(scr, fname);
if(!newfont)
return NULL;
return newfont;
}
WMFont *
WMUnemphasizeFont(WMScreen *scr, WMFont *font)
{
WMFont *newfont=NULL;
char fname[256];
if(!scr || !font)
return NULL;
snprintf(fname, 255, font->name);
changeFontProp(fname, "r", 3);
newfont = WMCreateNormalFont(scr, fname);
if(!newfont)
return NULL;
return newfont;
}
WMFont *
WMGetFontOfSize(WMScreen *scr, WMFont *font, int size)
{
if(!scr || !font || size<1)
return NULL;
return font;
}