-#include "../kernel/openbox.h"
-#include "font.h"
+/* -*- 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) 2003-2007 Dana Jansens
+ Copyright (c) 2003 Derek Foreman
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
-#include "../kernel/gettext.h"
-#define _(str) gettext(str)
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ See the COPYING file for a copy of the GNU General Public License.
+*/
+
+#include "font.h"
+#include "color.h"
+#include "mask.h"
+#include "theme.h"
+#include "geom.h"
+#include "instance.h"
+#include "gettext.h"
-#include <X11/Xft/Xft.h>
#include <glib.h>
+#include <string.h>
+#include <stdlib.h>
+#include <locale.h>
-void font_startup(void)
+static void measure_font(const RrInstance *inst, RrFont *f)
{
-#ifdef DEBUG
- int version;
-#endif /* DEBUG */
- if (!XftInit(0)) {
- g_warning(_("Couldn't initialize Xft.\n"));
- exit(3);
- }
-#ifdef DEBUG
- version = XftGetVersion();
- g_message("Using Xft %d.%d.%d (Built against %d.%d.%d).",
- version / 10000 % 100, version / 100 % 100, version % 100,
- XFT_MAJOR, XFT_MINOR, XFT_REVISION);
+ PangoFontMetrics *metrics;
+ static PangoLanguage *lang = NULL;
+
+ if (lang == NULL) {
+#if PANGO_VERSION_MAJOR > 1 || \
+ (PANGO_VERSION_MAJOR == 1 && PANGO_VERSION_MINOR >= 16)
+ lang = pango_language_get_default();
+#else
+ gchar *locale, *p;
+ /* get the default language from the locale
+ (based on gtk_get_default_language in gtkmain.c) */
+ locale = g_strdup(setlocale(LC_CTYPE, NULL));
+ if ((p = strchr(locale, '.'))) *p = '\0'; /* strip off the . */
+ if ((p = strchr(locale, '@'))) *p = '\0'; /* strip off the @ */
+ lang = pango_language_from_string(locale);
+ g_free(locale);
#endif
+ }
+
+ /* measure the ascent and descent */
+ metrics = pango_context_get_metrics(inst->pango, f->font_desc, lang);
+ f->ascent = pango_font_metrics_get_ascent(metrics);
+ f->descent = pango_font_metrics_get_descent(metrics);
+ pango_font_metrics_unref(metrics);
+
}
-static void measure_height(ObFont *f)
+RrFont *RrFontOpen(const RrInstance *inst, const gchar *name, gint size,
+ RrFontWeight weight, RrFontSlant slant)
{
- XGlyphInfo info;
- char *str;
+ RrFont *out;
+ PangoWeight pweight;
+ PangoStyle pstyle;
+ PangoAttrList *attrlist;
- /* XXX add some extended UTF8 characters in here? */
- str = "12345678900-qwertyuiopasdfghjklzxcvbnm"
- "!@#$%^&*()_+QWERTYUIOPASDFGHJKLZXCVBNM"
- "`~[]\\;',./{}|:\"<>?";
+ out = g_new(RrFont, 1);
+ out->inst = inst;
+ out->ref = 1;
+ out->font_desc = pango_font_description_new();
+ out->layout = pango_layout_new(inst->pango);
+ out->shortcut_underline = pango_attr_underline_new(PANGO_UNDERLINE_LOW);
+ out->shortcut_underline->start_index = 0;
+ out->shortcut_underline->end_index = 0;
- XftTextExtentsUtf8(ob_display, f->xftfont,
- (FcChar8*)str, strlen(str), &info);
- f->height = (signed) info.height;
-}
+ attrlist = pango_attr_list_new();
+ /* shortcut_underline is owned by the attrlist */
+ pango_attr_list_insert(attrlist, out->shortcut_underline);
+ /* the attributes are owned by the layout */
+ pango_layout_set_attributes(out->layout, attrlist);
+ pango_attr_list_unref(attrlist);
-ObFont *font_open(char *fontstring)
-{
- ObFont *out;
- XftFont *xf;
-
- if ((xf = XftFontOpenName(ob_display, ob_screen, fontstring))) {
- out = g_new(ObFont, 1);
- out->xftfont = xf;
- measure_height(out);
- return out;
+ switch (weight) {
+ case RR_FONTWEIGHT_LIGHT: pweight = PANGO_WEIGHT_LIGHT; break;
+ case RR_FONTWEIGHT_NORMAL: pweight = PANGO_WEIGHT_NORMAL; break;
+ case RR_FONTWEIGHT_SEMIBOLD: pweight = PANGO_WEIGHT_SEMIBOLD; break;
+ case RR_FONTWEIGHT_BOLD: pweight = PANGO_WEIGHT_BOLD; break;
+ case RR_FONTWEIGHT_ULTRABOLD: pweight = PANGO_WEIGHT_ULTRABOLD; break;
+ default: g_assert_not_reached();
}
- g_warning(_("Unable to load font: %s\n"), fontstring);
- g_warning(_("Trying fallback font: %s\n"), "fixed");
-
- if ((xf = XftFontOpenName(ob_display, ob_screen, "fixed"))) {
- out = g_new(ObFont, 1);
- out->xftfont = xf;
- measure_height(out);
- return out;
+
+ switch (slant) {
+ case RR_FONTSLANT_NORMAL: pstyle = PANGO_STYLE_NORMAL; break;
+ case RR_FONTSLANT_ITALIC: pstyle = PANGO_STYLE_ITALIC; break;
+ case RR_FONTSLANT_OBLIQUE: pstyle = PANGO_STYLE_OBLIQUE; break;
+ default: g_assert_not_reached();
}
- g_warning(_("Unable to load font: %s\n"), "fixed");
- g_warning(_("Aborting!.\n"));
- exit(3); /* can't continue without a font */
+ /* setup the font */
+ pango_font_description_set_family(out->font_desc, name);
+ pango_font_description_set_weight(out->font_desc, pweight);
+ pango_font_description_set_style(out->font_desc, pstyle);
+ pango_font_description_set_size(out->font_desc, size * PANGO_SCALE);
+
+ /* setup the layout */
+ pango_layout_set_font_description(out->layout, out->font_desc);
+ pango_layout_set_single_paragraph_mode(out->layout, TRUE);
+
+ /* get the ascent and descent */
+ measure_font(inst, out);
+
+ return out;
+}
+
+RrFont *RrFontOpenDefault(const RrInstance *inst)
+{
+ return RrFontOpen(inst, RrDefaultFontFamily, RrDefaultFontSize,
+ RrDefaultFontWeight, RrDefaultFontSlant);
+}
+
+void RrFontRef(RrFont *f)
+{
+ ++f->ref;
}
-void font_close(ObFont *f)
+void RrFontClose(RrFont *f)
{
- XftFontClose(ob_display, f->xftfont);
- g_free(f);
+ if (f) {
+ if (--f->ref < 1) {
+ g_object_unref(f->layout);
+ pango_font_description_free(f->font_desc);
+ g_free(f);
+ }
+ }
}
-int font_measure_string(ObFont *f, char *str, int shadow, int offset)
+static void font_measure_full(const RrFont *f, const gchar *str,
+ gint *x, gint *y, gint shadow_x, gint shadow_y)
{
- XGlyphInfo info;
+ PangoRectangle rect;
- XftTextExtentsUtf8(ob_display, f->xftfont,
- (FcChar8*)str, strlen(str), &info);
+ pango_layout_set_text(f->layout, str, -1);
+ pango_layout_set_width(f->layout, -1);
- return (signed) info.xOff + (shadow ? offset : 0);
+ /* pango_layout_get_pixel_extents lies! this is the right way to get the
+ size of the text's area */
+ pango_layout_get_extents(f->layout, NULL, &rect);
+#if PANGO_VERSION_MAJOR > 1 || \
+ (PANGO_VERSION_MAJOR == 1 && PANGO_VERSION_MINOR >= 16)
+ /* pass the logical rect as the ink rect, this is on purpose so we get the
+ full area for the text */
+ pango_extents_to_pixels(&rect, NULL);
+#else
+ rect.width = (rect.width + PANGO_SCALE - 1) / PANGO_SCALE;
+ rect.height = (rect.height + PANGO_SCALE - 1) / PANGO_SCALE;
+#endif
+ *x = rect.width + ABS(shadow_x) + 4 /* we put a 2 px edge on each side */;
+ *y = rect.height + ABS(shadow_y);
+}
+
+RrSize *RrFontMeasureString(const RrFont *f, const gchar *str,
+ gint shadow_x, gint shadow_y)
+{
+ RrSize *size;
+ size = g_new(RrSize, 1);
+ font_measure_full(f, str, &size->width, &size->height, shadow_x, shadow_y);
+ return size;
}
-int font_height(ObFont *f, int shadow, int offset)
+gint RrFontHeight(const RrFont *f, gint shadow_y)
{
- return f->height + (shadow ? offset : 0);
+ return (f->ascent + f->descent) / PANGO_SCALE + ABS(shadow_y);
}
-int font_max_char_width(ObFont *f)
+static inline int font_calculate_baseline(RrFont *f, gint height)
{
- return (signed) f->xftfont->max_advance_width;
+/* For my own reference:
+ * _________
+ * ^space/2 ^height ^baseline
+ * v_________|_ |
+ * | ^ascent | _ _
+ * | | | | |_ _____ _| |_ _ _
+ * | | | | _/ -_) \ / _| || |
+ * | v_________v \__\___/_\_\\__|\_, |
+ * | ^descent |__/
+ * __________|_v
+ * ^space/2 |
+ * V_________v
+ */
+ return (((height * PANGO_SCALE) /* height of the space in pango units */
+ - (f->ascent + f->descent)) /* minus space taken up by text */
+ / 2 /* divided by two -> half of the empty space (this is the top
+ of the text) */
+ + f->ascent) /* now move down to the baseline */
+ / PANGO_SCALE; /* back to pixels */
}
-void font_draw(XftDraw *d, TextureText *t, int x, int y, int w, int h)
+void RrFontDraw(XftDraw *d, RrTextureText *t, RrRect *area)
{
+ gint x,y,w,h;
XftColor c;
+ gint mw;
+ PangoRectangle rect;
+ PangoAttrList *attrlist;
+ PangoEllipsizeMode ell;
+
+ /* center the text vertically
+ We do this centering based on the 'baseline' since different fonts have
+ different top edges. It looks bad when the whole string is moved when 1
+ character from a non-default language is included in the string */
+ y = area->y +
+ font_calculate_baseline(t->font, area->height);
+
+ /* the +2 and -4 leave a small blank edge on the sides */
+ x = area->x + 2;
+ w = area->width - 4;
+ h = area->height;
+
+ switch (t->ellipsize) {
+ case RR_ELLIPSIZE_NONE:
+ ell = PANGO_ELLIPSIZE_NONE;
+ break;
+ case RR_ELLIPSIZE_START:
+ ell = PANGO_ELLIPSIZE_START;
+ break;
+ case RR_ELLIPSIZE_MIDDLE:
+ ell = PANGO_ELLIPSIZE_MIDDLE;
+ break;
+ case RR_ELLIPSIZE_END:
+ ell = PANGO_ELLIPSIZE_END;
+ break;
+ }
+
+ pango_layout_set_text(t->font->layout, t->string, -1);
+ pango_layout_set_width(t->font->layout, w * PANGO_SCALE);
+ pango_layout_set_ellipsize(t->font->layout, ell);
+
+ /* * * end of setting up the layout * * */
+
+ pango_layout_get_pixel_extents(t->font->layout, NULL, &rect);
+ mw = rect.width;
+
+ /* pango_layout_set_alignment doesn't work with
+ pango_xft_render_layout_line */
+ 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->shadow_offset_x || t->shadow_offset_y) {
+ c.color.red = t->shadow_color->r | t->shadow_color->r << 8;
+ c.color.green = t->shadow_color->g | t->shadow_color->g << 8;
+ c.color.blue = t->shadow_color->b | t->shadow_color->b << 8;
+ c.color.alpha = 0xffff * t->shadow_alpha / 255;
+ c.pixel = t->shadow_color->pixel;
+
+ /* see below... */
+ pango_xft_render_layout_line
+ (d, &c, pango_layout_get_line(t->font->layout, 0),
+ (x + t->shadow_offset_x) * PANGO_SCALE,
+ (y + t->shadow_offset_y) * PANGO_SCALE);
+ }
- /* accomidate for areas bigger/smaller than Xft thinks the font is tall */
- y -= (2 * (t->font->xftfont->ascent + t->font->xftfont->descent) -
- (t->font->height + h)) / 2;
-
- x += 3; /* XXX figure out X with justification */
-
- if (t->shadow) {
- c.color.red = 0;
- c.color.green = 0;
- c.color.blue = 0;
- c.color.alpha = t->tint | t->tint << 8; /* transparent shadow */
- c.pixel = BlackPixel(ob_display, ob_screen);
-
- XftDrawStringUtf8(d, &c, t->font->xftfont, x + t->offset,
- t->font->xftfont->ascent + y + t->offset,
- (FcChar8*)t->string, strlen(t->string));
- }
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*)t->string, strlen(t->string));
- return;
+
+ if (t->shortcut) {
+ const gchar *s = t->string + t->shortcut_pos;
+
+ t->font->shortcut_underline->start_index = t->shortcut_pos;
+ t->font->shortcut_underline->end_index = t->shortcut_pos +
+ (g_utf8_next_char(s) - s);
+
+ /* the attributes are owned by the layout.
+ re-add the attributes to the layout after changing the
+ start and end index */
+ attrlist = pango_layout_get_attributes(t->font->layout);
+ pango_attr_list_ref(attrlist);
+ pango_layout_set_attributes(t->font->layout, attrlist);
+ pango_attr_list_unref(attrlist);
+ }
+
+ /* layout_line() uses y to specify the baseline
+ The line doesn't need to be freed, it's a part of the layout */
+ pango_xft_render_layout_line
+ (d, &c, pango_layout_get_line(t->font->layout, 0),
+ x * PANGO_SCALE, y * PANGO_SCALE);
+
+ if (t->shortcut) {
+ t->font->shortcut_underline->start_index = 0;
+ t->font->shortcut_underline->end_index = 0;
+ /* the attributes are owned by the layout.
+ re-add the attributes to the layout after changing the
+ start and end index */
+ attrlist = pango_layout_get_attributes(t->font->layout);
+ pango_attr_list_ref(attrlist);
+ pango_layout_set_attributes(t->font->layout, attrlist);
+ pango_attr_list_unref(attrlist);
+ }
}
projects / mikachu / openbox.git / blobdiff