/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
font.c for the Openbox window manager
+ Copyright (c) 2006 Mikael Magnusson
Copyright (c) 2003 Ben Jansens
Copyright (c) 2003 Derek Foreman
#include <glib.h>
#include <string.h>
#include <stdlib.h>
+#ifdef USE_PANGO
+#include <locale.h>
+#endif
#define ELIPSES "..."
#define ELIPSES_LENGTH(font) \
{ OB_SHADOW_ALPHA, FcTypeInteger }
};
-PangoFontMap *pfm;
-PangoContext *context;
-
+#ifdef USE_PANGO
+static PangoContext *context;
+#endif
static gboolean started = FALSE;
static void font_startup(void)
#ifdef USE_PANGO
g_type_init();
- /* these will never be freed, but we will need them until we shut down anyway */
- pfm = pango_xft_get_font_map(RrDisplay(NULL), RrScreen(NULL));
+ /* these will never be freed, but we will need
+ * them until we shut down anyway */
context = pango_xft_get_context(RrDisplay(NULL), RrScreen(NULL));
#endif /* USE_PANGO */
/* Here we are teaching xft about the shadow, shadowoffset & shadowtint */
out = g_new(RrFont, 1);
out->inst = inst;
#ifdef USE_PANGO
- /* printf("\n\n%s\n\n",fontstring);
- FcPatternPrint(match); */
-
out->pango_font_description = pango_font_description_new();
- if (FcPatternGetString(match, "family", 0, &tmp_string) != FcResultTypeMismatch) {
- pango_font_description_set_family(out->pango_font_description, (gchar *)tmp_string);
+ if (FcPatternGetString(match, "family", 0, &tmp_string) !=
+ FcResultTypeMismatch) {
+ pango_font_description_set_family(out->pango_font_description,
+ (gchar *)tmp_string);
tmp_string = NULL;
}
- if (FcPatternGetString(match, "style", 0, &tmp_string) != FcResultTypeMismatch) {
+ if (FcPatternGetString(match, "style", 0, &tmp_string) !=
+ FcResultTypeMismatch) {
/* Bold ? */
if (!strcasecmp("bold", (gchar *)tmp_string)) {
- pango_font_description_set_weight(out->pango_font_description, PANGO_WEIGHT_BOLD);
+ pango_font_description_set_weight(out->pango_font_description,
+ PANGO_WEIGHT_BOLD);
}
/* Italic ? */
else if (!strcasecmp("italic", (gchar *)tmp_string)) {
- pango_font_description_set_style(out->pango_font_description, PANGO_STYLE_ITALIC);
+ pango_font_description_set_style(out->pango_font_description,
+ PANGO_STYLE_ITALIC);
}
tmp_string = NULL;
}
- if (FcPatternGetInteger(match, "pixelsize", 0, &tmp_int) != FcResultTypeMismatch) {
- /* TODO: is PANGO_SCALE correct ?? */
- pango_font_description_set_size(out->pango_font_description, tmp_int*PANGO_SCALE);
+ if (FcPatternGetInteger(match, "pixelsize", 0, &tmp_int) !=
+ FcResultTypeMismatch) {
+ pango_font_description_set_absolute_size(out->pango_font_description,
+ tmp_int*PANGO_SCALE);
}
- PangoFontset *pfs = pango_font_map_load_fontset(pfm, context, out->pango_font_description, NULL);
- out->pango_font_metrics = pango_fontset_get_metrics(pfs);
+ /* based on gtkmain.c gtk_get_default_language() */
+ gchar *locale, *p;
+ locale = g_strdup(setlocale(LC_CTYPE, NULL));
+ if ((p = strchr(locale, '.')))
+ *p = '\0';
+ if ((p = strchr(locale, '@')))
+ *p = '\0';
+ PangoFontMetrics *metrics =
+ pango_context_get_metrics(context, out->pango_font_description,
+ pango_language_from_string(locale));
+ out->pango_ascent = pango_font_metrics_get_ascent(metrics);
+ out->pango_descent = pango_font_metrics_get_descent(metrics);
+ g_free(locale);
+ pango_font_metrics_unref(metrics);
#endif /* USE_PANGO */
if (FcPatternGetBool(match, OB_SHADOW, 0, &out->shadow) != FcResultMatch)
void RrFontClose(RrFont *f)
{
if (f) {
+#ifdef USE_PANGO
+ pango_font_description_free(f->pango_font_description);
+#endif
XftFontClose(RrDisplay(f->inst), f->xftfont);
g_free(f);
}
-#ifdef USE_PANGO
- pango_font_metrics_unref(f->pango_font_metrics);
- pango_font_description_free(f->pango_font_description);
-#endif
}
static void font_measure_full(const RrFont *f, const gchar *str,
gint RrFontHeight(const RrFont *f)
{
#ifdef USE_PANGO
- int ascent, descent;
- ascent = pango_font_metrics_get_ascent(f->pango_font_metrics);
- descent = pango_font_metrics_get_descent(f->pango_font_metrics);
- return (ascent + descent) / PANGO_SCALE;
+ return (f->pango_ascent
+ + f->pango_descent
+ ) / PANGO_SCALE +
+ (f->shadow ? f->offset : 0);
#else
return f->xftfont->ascent + f->xftfont->descent +
- (f->shadow ? f->offset : 0);
+ (f->shadow ? f->offset : 0);
#endif
}
return (signed) f->xftfont->max_advance_width;
}
+#ifdef USE_PANGO
+static inline int font_calculate_baseline(RrFont *f, gint height)
+{
+/* For my own reference:
+ * _________
+ * ^space/2 ^height ^baseline
+ * v_________|_ |
+ * | ^ascent | _ _
+ * | | | | |_ _____ _| |_ _ _
+ * | | | | _/ -_) \ / _| || |
+ * | v_________v \__\___/_\_\\__|\_, |
+ * | ^descent |__/
+ * __________|_v
+ * ^space/2 |
+ * V_________v
+ */
+ int asc = f->pango_ascent;
+ int ascdesc = asc + f->pango_descent;
+ int space = height * PANGO_SCALE - ascdesc;
+ int baseline = space / 2 + asc;
+ return baseline / PANGO_SCALE;
+}
+#endif
+
void RrFontDraw(XftDraw *d, RrTextureText *t, RrRect *area)
{
gint x,y,w,h;
XftColor c;
GString *text;
- gint mw, mh;
+ gint mw;
#ifndef USE_PANGO
+ gint mh;
size_t l;
gboolean shortened = FALSE;
#else
pl = pango_layout_new (context);
#endif /* USE_PANGO */
- /* center vertically */
-#ifndef USE_PANGO /* We have to wait for the text string with pango */
+ /* center vertically
+ * for xft we pass the top edge of the text for positioning... */
+#ifndef USE_PANGO
y = area->y +
(area->height - RrFontHeight(t->font)) / 2;
+#else
+ /* but for pango we pass the baseline, since different fonts have
+ * different top edges. It looks stupid when the baseline of "normal"
+ * text jumps up and down when a "strange" character is just added
+ * to the end of the text */
+ y = area->y +
+ font_calculate_baseline(t->font, area->height);
#endif
/* the +2 and -4 leave a small blank edge on the sides */
x = area->x + 2;
}
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 */
#else
pango_layout_set_single_paragraph_mode(pl, TRUE);
pango_layout_set_width(pl, w * PANGO_SCALE);
pango_layout_set_ellipsize(pl, PANGO_ELLIPSIZE_MIDDLE);
- pango_layout_set_alignment(pl, (PangoAlignment)(t->justify));
+ /* This doesn't work with layout_line() of course */
+/* pango_layout_set_alignment(pl, (PangoAlignment)(t->justify)); */
pango_layout_get_pixel_extents(pl, NULL, &rect);
- y = area->y +
- (area->height - rect.height) / 2;
+ mw = rect.width;
#endif /* USE_PANGO */
+ 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;
+ }
+
if (t->font->shadow) {
if (t->font->tint >= 0) {
c.color.red = 0;
t->font->xftfont->ascent + y + t->font->offset,
(FcChar8*)text->str, l);
#else /* USE_PANGO */
- pango_xft_render_layout(d, &c, pl, (x + t->font->offset) * PANGO_SCALE,
- (y + t->font->offset) * PANGO_SCALE);
+ /* see below... */
+ pango_xft_render_layout_line(d, &c, pango_layout_get_line(pl, 0),
+ (x + t->font->offset) * PANGO_SCALE,
+ (y + t->font->offset) * PANGO_SCALE);
#endif /* USE_PANGO */
}
c.color.red = t->color->r | t->color->r << 8;
t->font->xftfont->ascent + y,
(FcChar8*)text->str, l);
#else /* USE_PANGO */
- pango_xft_render_layout(d, &c, pl, x * PANGO_SCALE, y * PANGO_SCALE);
+ /* layout_line() bases y on the baseline, while layout() bases y on the
+ * top of the ink layout. We want the baseline to always be in the same
+ * place, thusly, we use layout_line()
+ * The actual line doesn't need to be freed (per the pango docs) */
+ pango_xft_render_layout_line(d, &c, pango_layout_get_line(pl, 0),
+ x * PANGO_SCALE, y * PANGO_SCALE);
g_object_unref(pl);
#endif
projects / chaz / openbox / blobdiff