X-Git-Url: https://git.dogcows.com/gitweb?a=blobdiff_plain;f=render%2Ffont.c;h=d2a4acaeed31e0b8177d4903489d136a3b913581;hb=35418ca0fcd3fd28ef579f4435b8bad3b7c87f04;hp=eb72feb17c63ab7e8ab05761742e720b59b45d6f;hpb=f8a47de5ec444c452093371e3db16857eb39a490;p=chaz%2Fopenbox

diff --git a/render/font.c b/render/font.c
index eb72feb1..d2a4acae 100644
--- a/render/font.c
+++ b/render/font.c
@@ -1,75 +1,229 @@
 #include "font.h"
+#include "color.h"
+#include "mask.h"
+#include "theme.h"
+#include "gettext.h"
 
-#include "../src/gettext.h"
-#define _(str) gettext(str)
+#include <X11/Xft/Xft.h>
+#include <glib.h>
+#include <string.h>
 
-font_open(const std::string &fontstring,
-             bool shadow, unsigned char offset, unsigned char tint)
+#define ELIPSES "..."
+#define ELIPSES_LENGTH(font) \
+    (font->elipses_length + (font->shadow ? font->offset : 0))
+
+#define OB_SHADOW "shadow"
+#define OB_SHADOW_OFFSET "shadowoffset"
+#define OB_SHADOW_ALPHA "shadowtint"
+
+FcObjectType objs[] = {
+    { OB_SHADOW,        FcTypeBool    },
+    { OB_SHADOW_OFFSET, FcTypeInteger },
+    { OB_SHADOW_ALPHA,  FcTypeInteger  }
+};
+
+static gboolean started = FALSE;
+
+static void font_startup(void)
 {
-  assert(screen_num >= 0);
-  assert(tint <= CHAR_MAX);
-  
-  if (!_xft_init) {
     if (!XftInit(0)) {
-      printf(_("Couldn't initialize Xft.\n\n"));
-      ::exit(3);
+        g_warning(_("Couldn't initialize Xft.\n"));
+        exit(EXIT_FAILURE);
     }
-#ifdef DEBUG
-    int version = XftGetVersion();
-    printf("Using Xft %d.%d.%d (Built against %d.%d.%d).\n",
-           version / 10000 % 100, version / 100 % 100, version % 100,
-           XFT_MAJOR, XFT_MINOR, XFT_REVISION);
-#endif
-    _xft_init = true;
-  }
-
-  if ((_xftfont = XftFontOpenName(ob_display, _screen_num,
-                                  fontstring)))
-    return;
-
-  printf(_("Unable to load font: %s\n"), _fontstring.c_str());
-  printf(_("Trying fallback font: %s\n"), "fixed");
-
-  if ((_xftfont = XftFontOpenName(ob_display, _screen_num,
-                                  "fixed")))
-    return;
+    FcNameRegisterObjectTypes(objs, (sizeof(objs) / sizeof(objs[0])));
+}
 
-  printf(_("Unable to load font: %s\n"), "fixed");
-  printf(_("Aborting!.\n"));
+static void measure_font(RrFont *f)
+{
+    XGlyphInfo info;
 
-  exit(3); // can't continue without a font
+    /* measure an elipses */
+    XftTextExtentsUtf8(RrDisplay(f->inst), f->xftfont,
+                       (FcChar8*)ELIPSES, strlen(ELIPSES), &info);
+    f->elipses_length = (signed) info.xOff;
 }
 
+static RrFont *openfont(const RrInstance *inst, char *fontstring)
+{
+    RrFont *out;
+    FcPattern *pat, *match;
+    XftFont *font;
+    FcResult res;
+    gint tint;
+
+    if (!(pat = XftNameParse(fontstring)))
+        return NULL;
+
+    match = XftFontMatch(RrDisplay(inst), RrScreen(inst), pat, &res);
+    if (!match)
+        return NULL;
+
+    out = g_new(RrFont, 1);
+    out->inst = inst;
+
+    if (FcPatternGetBool(match, OB_SHADOW, 0, &out->shadow) != FcResultMatch)
+        out->shadow = FALSE;
+
+    if (FcPatternGetInteger(match, OB_SHADOW_OFFSET, 0, &out->offset) !=
+        FcResultMatch)
+        out->offset = 1;
+
+    if (FcPatternGetInteger(match, OB_SHADOW_ALPHA, 0, &tint) != FcResultMatch)
+        tint = 25;
+    if (tint > 100) tint = 100;
+    else if (tint < -100) tint = -100;
+    out->tint = tint;
+
+    font = XftFontOpenPattern(RrDisplay(inst), match);
+    if (!font) {
+        FcPatternDestroy(match);
+        g_free(out);
+        return NULL;
+    } else
+        out->xftfont = font;
+
+    measure_font(out);
+
+    return out;
+}
 
-destroy_fonts(void)
+RrFont *RrFontOpen(const RrInstance *inst, char *fontstring)
 {
-  if (_xftfont)
-    XftFontClose(ob_display, _xftfont);
+    RrFont *out;
+
+    if (!started) {
+        font_startup();
+        started = TRUE;
+    }
+
+    if ((out = openfont(inst, fontstring)))
+        return out;
+    g_warning(_("Unable to load font: %s\n"), fontstring);
+    g_warning(_("Trying fallback font: %s\n"), "sans");
+
+    if ((out = openfont(inst, "sans")))
+        return out;
+    g_warning(_("Unable to load font: %s\n"), "sans");
+
+    return NULL;
 }
 
+void RrFontClose(RrFont *f)
+{
+    if (f) {
+        XftFontClose(RrDisplay(f->inst), f->xftfont);
+        g_free(f);
+    }
+}
 
-int font_measure_string(const char *)
+static void font_measure_full(const RrFont *f, const gchar *str,
+                              gint *x, gint *y)
 {
-  XGlyphInfo info;
+    XGlyphInfo info;
 
-  if (string.utf8())
-    XftTextExtentsUtf8(**display, _xftfont,
-                       (FcChar8*)string.c_str(), string.bytes(), &info);
-  else
-    XftTextExtents8(ob_display, _xftfont,
-                    (FcChar8*)string.c_str(), string.bytes(), &info);
+    XftTextExtentsUtf8(RrDisplay(f->inst), f->xftfont,
+                       (const FcChar8*)str, strlen(str), &info);
 
-  return (signed) info.xOff + (_shadow ? _offset : 0);
+    *x = (signed) info.xOff + (f->shadow ? ABS(f->offset) : 0);
+    *y = info.height + (f->shadow ? ABS(f->offset) : 0);
 }
 
+int RrFontMeasureString(const RrFont *f, const gchar *str)
+{
+    gint x, y;
+    font_measure_full (f, str, &x, &y);
+    return x;
+}
 
-int font_height(void)
+int RrFontHeight(const RrFont *f)
 {
-  return (signed) _xftfont->height + (_shadow ? _offset : 0);
+    return f->xftfont->ascent + f->xftfont->descent +
+        (f->shadow ? f->offset : 0);
 }
 
+int RrFontMaxCharWidth(const RrFont *f)
+{
+    return (signed) f->xftfont->max_advance_width;
+}
 
-int font_max_char_width(void)
+void RrFontDraw(XftDraw *d, RrTextureText *t, RrRect *area)
 {
-  return (signed) _xftfont->max_advance_width;
+    gint x,y,w,h;
+    XftColor c;
+    GString *text;
+    gint mw, em, mh;
+    size_t l;
+    gboolean shortened = FALSE;
+
+    /* center vertically */
+    y = area->y +
+        (area->height - RrFontHeight(t->font)) / 2;
+    /* the +2 and -4 leave a small blank edge on the sides */
+    x = area->x + 2;
+    w = area->width - 4;
+    h = area->height;
+
+    text = g_string_new(t->string);
+    l = g_utf8_strlen(text->str, -1);
+    font_measure_full(t->font, text->str, &mw, &mh);
+    while (l && mw > area->width) {
+        shortened = TRUE;
+        /* remove a character from the middle */
+        text = g_string_erase(text, l-- / 2, 1);
+        em = ELIPSES_LENGTH(t->font);
+        /* if the elipses are too large, don't show them at all */
+        if (em > area->width)
+            shortened = FALSE;
+        font_measure_full(t->font, text->str, &mw, &mh);
+        mw += em;
+    }
+    if (shortened) {
+        text = g_string_insert(text, (l + 1) / 2, ELIPSES);
+        l += 3;
+    }
+    if (!l) return;
+
+    switch (t->justify) {
+    case RR_JUSTIFY_LEFT:
+        break;
+    case RR_JUSTIFY_RIGHT:
+        x += (w - mw);
+        break;
+    case RR_JUSTIFY_CENTER:
+        x += (w - mw) / 2;
+        break;
+    }
+
+    l = strlen(text->str); /* number of bytes */
+
+    if (t->font->shadow) {
+        if (t->font->tint >= 0) {
+            c.color.red = 0;
+            c.color.green = 0;
+            c.color.blue = 0;
+            c.color.alpha = 0xffff * t->font->tint / 100;
+            c.pixel = BlackPixel(RrDisplay(t->font->inst),
+                                 RrScreen(t->font->inst));
+        } else {
+            c.color.red = 0xffff;
+            c.color.green = 0xffff;
+            c.color.blue = 0xffff;
+            c.color.alpha = 0xffff * -t->font->tint / 100;
+            c.pixel = WhitePixel(RrDisplay(t->font->inst),
+                                 RrScreen(t->font->inst));
+        }  
+        XftDrawStringUtf8(d, &c, t->font->xftfont, x + t->font->offset,
+                          t->font->xftfont->ascent + y + t->font->offset,
+                          (FcChar8*)text->str, l);
+    }  
+    c.color.red = t->color->r | t->color->r << 8;
+    c.color.green = t->color->g | t->color->g << 8;
+    c.color.blue = t->color->b | t->color->b << 8;
+    c.color.alpha = 0xff | 0xff << 8; /* fully opaque text */
+    c.pixel = t->color->pixel;
+
+    XftDrawStringUtf8(d, &c, t->font->xftfont, x,
+                      t->font->xftfont->ascent + y,
+                      (FcChar8*)text->str, l);
+    return;
 }