From e7d1ba6ae343ae3e3f2d97a1fc853422c5b8c3e5 Mon Sep 17 00:00:00 2001 From: Mikael Magnusson Date: Sun, 7 Nov 2004 13:20:54 +0000 Subject: [PATCH] Pango! yay. Patch mostly by Mohammed Sameer, fixed some memleaks and ifdeffed by me. May still have some bugs. --- Makefile.am | 3 ++ configure.ac | 12 +++++ render/font.c | 140 ++++++++++++++++++++++++++++++++++++++++++++++++++ render/font.h | 6 +++ 4 files changed, 161 insertions(+) diff --git a/Makefile.am b/Makefile.am index 7545278b..030fb655 100644 --- a/Makefile.am +++ b/Makefile.am @@ -42,6 +42,7 @@ render_rendertest_LDADD = \ render/libobrender.la \ $(XFT_LIBS) \ $(GLIB_LIBS) \ + $(PANGO_LIBS) \ $(XML_LIBS) \ $(X_LIBS) render_rendertest_SOURCES = render/test.c @@ -51,6 +52,7 @@ render_libobrender_la_CPPFLAGS = \ $(XFT_CFLAGS) \ $(GLIB_CFLAGS) \ $(XML_CFLAGS) \ + $(PANGO_CFLAGS) \ -DG_LOG_DOMAIN=\"ObRender\" \ -DDEFAULT_THEME=\"$(theme)\" render_libobrender_la_LDFLAGS = \ @@ -113,6 +115,7 @@ openbox_openbox_LDADD = \ $(VIDMODE_LIBS) \ $(XSHAPE_LIBS) \ $(GLIB_LIBS) \ + $(PANGO_LIBS) \ $(X_LIBS) \ $(LIBSN_LIBS) \ $(XML_LIBS) \ diff --git a/configure.ac b/configure.ac index a70e91c6..45db7eb3 100644 --- a/configure.ac +++ b/configure.ac @@ -73,6 +73,18 @@ fi PKG_CHECK_MODULES([GLIB], [glib-2.0]) AC_SUBST(GLIB_CFLAGS) AC_SUBST(GLIB_LIBS) + +AC_ARG_ENABLE(pango, + AC_HELP_STRING([--enable-pango], + [enable the pango library for better display of international fonts. (default=no)]), + [enable_pango=yes], [enable_pango=no]) + +if test "$enable_pango" = yes; then +PKG_CHECK_MODULES([PANGO], [pango pangoxft]) +AC_SUBST(PANGO_CFLAGS) +AC_SUBST(PANGO_LIBS) +DEFS="$DEFS -DUSE_PANGO" +fi PKG_CHECK_MODULES(XFT, [xft]) AC_SUBST(XFT_CFLAGS) diff --git a/render/font.c b/render/font.c index ce74cad1..8ba8a99f 100644 --- a/render/font.c +++ b/render/font.c @@ -50,26 +50,44 @@ static void font_startup(void) g_warning(_("Couldn't initialize Xft.")); exit(EXIT_FAILURE); } + +#ifdef USE_PANGO + g_type_init(); +#endif /* USE_PANGO */ + /* Here we are teaching xft about the shadow, shadowoffset & shadowtint */ FcNameRegisterObjectTypes(objs, (sizeof(objs) / sizeof(objs[0]))); } static void measure_font(RrFont *f) { + /* xOff, yOff is the normal spacing to the next glyph. */ XGlyphInfo info; /* measure an elipses */ +#ifndef USE_PANGO + XftTextExtentsUtf8(RrDisplay(f->inst), f->xftfont, + (FcChar8*)ELIPSES, strlen(ELIPSES), &info); + f->elipses_length = (signed) info.xOff; +#else /* USE_PANGO */ XftTextExtentsUtf8(RrDisplay(f->inst), f->xftfont, (FcChar8*)ELIPSES, strlen(ELIPSES), &info); f->elipses_length = (signed) info.xOff; +#endif /* USE_PANGO */ } static RrFont *openfont(const RrInstance *inst, gchar *fontstring) { + /* This function is called for each font in the theme file. */ + /* It returns a pointer to a RrFont struct after filling it. */ RrFont *out; FcPattern *pat, *match; XftFont *font; FcResult res; gint tint; +#ifdef USE_PANGO + gchar *tmp_string = NULL; + gint tmp_int; +#endif /* USE_PANGO */ if (!(pat = XftNameParse(fontstring))) return NULL; @@ -81,6 +99,33 @@ static RrFont *openfont(const RrInstance *inst, gchar *fontstring) 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, tmp_string); + tmp_string = NULL; + } + if (FcPatternGetString(match, "style", 0, &tmp_string) != FcResultTypeMismatch) { + /* Bold ? */ + if (!strcasecmp("bold", tmp_string)) { + pango_font_description_set_weight(out->pango_font_description, PANGO_WEIGHT_BOLD); + } + /* Italic ? */ + else if (!strcasecmp("italic", tmp_string)) { + 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); + } +#endif /* USE_PANGO */ if (FcPatternGetBool(match, OB_SHADOW, 0, &out->shadow) != FcResultMatch) out->shadow = FALSE; @@ -103,6 +148,9 @@ static RrFont *openfont(const RrInstance *inst, gchar *fontstring) } else out->xftfont = font; +#ifdef USE_PANGO + /* FcPatternDestroy(match); */ +#endif /* USE_PANGO */ measure_font(out); return out; @@ -140,6 +188,22 @@ void RrFontClose(RrFont *f) static void font_measure_full(const RrFont *f, const gchar *str, gint *x, gint *y) { +#ifdef USE_PANGO + PangoContext *context; + PangoLayout *pl; + PangoRectangle rect; + context = pango_xft_get_context (RrDisplay(f->inst), RrScreen(f->inst)); + pl = pango_layout_new (context); + pango_layout_set_text(pl, str, -1); + pango_layout_set_font_description(pl, f->pango_font_description); + pango_layout_set_single_paragraph_mode(pl, TRUE); + pango_layout_get_pixel_extents(pl, NULL, &rect); + *x = rect.width + (f->shadow ? ABS(f->offset) : 0); + *y = rect.height + (f->shadow ? ABS(f->offset) : 0); + g_object_unref(pl); + g_object_unref(context); + +#else XGlyphInfo info; XftTextExtentsUtf8(RrDisplay(f->inst), f->xftfont, @@ -147,6 +211,7 @@ static void font_measure_full(const RrFont *f, const gchar *str, *x = (signed) info.xOff + (f->shadow ? ABS(f->offset) : 0); *y = info.height + (f->shadow ? ABS(f->offset) : 0); +#endif /* USE_PANGO */ } gint RrFontMeasureString(const RrFont *f, const gchar *str) @@ -158,8 +223,27 @@ gint RrFontMeasureString(const RrFont *f, const gchar *str) gint RrFontHeight(const RrFont *f) { +#ifndef USE_PANGO return f->xftfont->ascent + f->xftfont->descent + (f->shadow ? f->offset : 0); +#else /* USE_PANGO */ + /* + PangoContext *context = pango_context_new (); + + PangoFontMetrics *metrics = pango_context_get_metrics(context, f->pango_font, NULL); + + gint result = pango_font_metrics_get_ascent (metrics) + + pango_font_metrics_get_descent(metrics) + + (f->shadow ? f->offset : 0); + + pango_font_metrics_unref(metrics); + g_object_unref(context); + return result; + */ + return f->xftfont->ascent + f->xftfont->descent + + (f->shadow ? f->offset : 0*); + +#endif /* USE_PANGO */ } gint RrFontMaxCharWidth(const RrFont *f) @@ -176,6 +260,16 @@ void RrFontDraw(XftDraw *d, RrTextureText *t, RrRect *area) size_t l; gboolean shortened = FALSE; +#ifdef USE_PANGO + PangoLayout *pl; + PangoLayoutLine *pll; + PangoContext *context; + GSList *p; + + context = pango_xft_get_context (RrDisplay(t->font->inst), RrScreen(t->font->inst)); + pl = pango_layout_new (context); +#endif /* USE_PANGO */ + /* center vertically */ y = area->y + (area->height - RrFontHeight(t->font)) / 2; @@ -216,7 +310,17 @@ void RrFontDraw(XftDraw *d, RrTextureText *t, RrRect *area) l = strlen(text->str); /* number of bytes */ +#ifdef USE_PANGO + pango_layout_set_text(pl, text->str, l); + pango_layout_set_font_description(pl, t->font->pango_font_description); + pango_layout_set_single_paragraph_mode(pl, TRUE); + pll = pango_layout_get_line(pl, 0); +#endif /* USE_PANGO */ + if (t->font->shadow) { +#ifdef USE_PANGO + int x2 = x; +#endif /* USE_PANGO */ if (t->font->tint >= 0) { c.color.red = 0; c.color.green = 0; @@ -231,20 +335,56 @@ void RrFontDraw(XftDraw *d, RrTextureText *t, RrRect *area) c.color.alpha = 0xffff * -t->font->tint / 100; c.pixel = WhitePixel(RrDisplay(t->font->inst), RrScreen(t->font->inst)); +#ifndef USE_PANGO } XftDrawStringUtf8(d, &c, t->font->xftfont, x + t->font->offset, t->font->xftfont->ascent + y + t->font->offset, (FcChar8*)text->str, l); } +#else /* USE_PANGO */ + } + + for (p = pll->runs; p != NULL; p = p->next) + { + PangoLayoutRun *run = p->data; + PangoFont *font = run->item->analysis.font; + PangoGlyphString *glyphs = run->glyphs; + PangoRectangle rect; + + pango_glyph_string_extents (glyphs, font, NULL, &rect); + pango_xft_render (d, &c, font, glyphs, x2 + t->font->offset, + t->font->xftfont->ascent + y + t->font->offset); + x2 += rect.width / PANGO_SCALE; + } + } +#endif /* USE_PANGO */ 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; +#ifndef USE_PANGO XftDrawStringUtf8(d, &c, t->font->xftfont, x, t->font->xftfont->ascent + y, (FcChar8*)text->str, l); +#else /* USE_PANGO */ + for (p = pll->runs; p != NULL; p = p->next) + { + PangoLayoutRun *run = p->data; + PangoFont *font = run->item->analysis.font; + PangoGlyphString *glyphs = run->glyphs; + PangoRectangle rect; + + pango_glyph_string_extents (glyphs, font, NULL, &rect); + pango_xft_render (d, &c, font, glyphs, x, t->font->xftfont->ascent + y); + x += rect.width / PANGO_SCALE; + } + + // pango_layout_line_unref(pll); + g_object_unref(pl); + g_object_unref(context); +#endif /* USE_PANGO */ g_string_free(text, TRUE); return; diff --git a/render/font.h b/render/font.h index 6f8d511c..1ddeb047 100644 --- a/render/font.h +++ b/render/font.h @@ -21,9 +21,15 @@ #define __font_h #include "render.h" #include "geom.h" +#ifdef USE_PANGO +#include +#endif /* USE_PANGO */ struct _RrFont { const RrInstance *inst; +#ifdef USE_PANGO + PangoFontDescription *pango_font_description; +#endif /* USE_PANGO */ XftFont *xftfont; gint elipses_length; gint shadow; -- 2.45.2