X-Git-Url: https://git.brokenzipper.com/gitweb?a=blobdiff_plain;f=render%2Ffont.c;h=8ba8a99fc17cef8df373a2b3b4dad0872a420ddb;hb=e7d1ba6ae343ae3e3f2d97a1fc853422c5b8c3e5;hp=27496c1d6955192b5a30ad55cfb561a1a8705e1b;hpb=60204c43484c26338ff290a681e5d4cd5a2d0caf;p=chaz%2Fopenbox

diff --git a/render/font.c b/render/font.c
index 27496c1d..8ba8a99f 100644
--- a/render/font.c
+++ b/render/font.c
@@ -1,140 +1,391 @@
-#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) 2003        Ben 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.
+
+   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.
 
-#include "../kernel/gettext.h"
-#define _(str) gettext(str)
+   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 "gettext.h"
 
 #include <X11/Xft/Xft.h>
 #include <glib.h>
-#include "../kernel/geom.h"
+#include <string.h>
+#include <stdlib.h>
+
+#define ELIPSES "..."
+#define ELIPSES_LENGTH(font) \
+    (font->elipses_length + (font->shadow ? font->offset : 0))
 
-void font_startup(void)
+#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)
 {
-#ifdef DEBUG
-    int version;
-#endif /* DEBUG */
     if (!XftInit(0)) {
-        g_warning(_("Couldn't initialize Xft.\n"));
-        exit(3);
+        g_warning(_("Couldn't initialize Xft."));
+        exit(EXIT_FAILURE);
     }
-#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);
-#endif
+
+#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_height(ObFont *f)
+static void measure_font(RrFont *f)
 {
+    /* xOff, yOff is the normal spacing to the next glyph. */
     XGlyphInfo info;
-    char *str;
 
-    /* XXX add some extended UTF8 characters in here? */
-    str = "12345678900-qwertyuiopasdfghjklzxcvbnm"
-        "!@#$%^&*()_+QWERTYUIOPASDFGHJKLZXCVBNM"
-        "`~[]\\;',./{}|:\"<>?";
+    /* 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;
+
+    match = XftFontMatch(RrDisplay(inst), RrScreen(inst), pat, &res);
+    FcPatternDestroy(pat);
+    if (!match)
+        return NULL;
+
+    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;
+
+    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;
 
-    XftTextExtentsUtf8(ob_display, f->xftfont,
-                       (FcChar8*)str, strlen(str), &info);
-    f->height = (signed) info.height;
+    font = XftFontOpenPattern(RrDisplay(inst), match);
+    if (!font) {
+        FcPatternDestroy(match);
+        g_free(out);
+        return NULL;
+    } else
+        out->xftfont = font;
+
+#ifdef USE_PANGO
+    /*        FcPatternDestroy(match); */
+#endif /* USE_PANGO */
+    measure_font(out);
+
+    return out;
 }
 
-ObFont *font_open(char *fontstring)
+RrFont *RrFontOpen(const RrInstance *inst, gchar *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;
+    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 ((xf = XftFontOpenName(ob_display, ob_screen, "sans"))) {
-        out = g_new(ObFont, 1);
-        out->xftfont = xf;
-        measure_height(out);
+    if ((out = openfont(inst, "sans")))
         return out;
-    }
     g_warning(_("Unable to load font: %s\n"), "sans");
-    g_warning(_("Aborting!.\n"));
 
-    exit(3); /* can't continue without a font */
+    return NULL;
 }
 
-void font_close(ObFont *f)
+void RrFontClose(RrFont *f)
 {
-    XftFontClose(ob_display, f->xftfont);
-    g_free(f);
+    if (f) {
+        XftFontClose(RrDisplay(f->inst), f->xftfont);
+        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)
 {
+#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(ob_display, f->xftfont,
-                       (FcChar8*)str, strlen(str), &info);
+    XftTextExtentsUtf8(RrDisplay(f->inst), f->xftfont,
+                       (const FcChar8*)str, strlen(str), &info);
+
+    *x = (signed) info.xOff + (f->shadow ? ABS(f->offset) : 0);
+    *y = info.height + (f->shadow ? ABS(f->offset) : 0);
+#endif /* USE_PANGO */
+}
 
-    return (signed) info.xOff + (shadow ? offset : 0);
+gint RrFontMeasureString(const RrFont *f, const gchar *str)
+{
+    gint x, y;
+    font_measure_full (f, str, &x, &y);
+    return x + 4;
 }
 
-int font_height(ObFont *f, int shadow, int offset)
+gint RrFontHeight(const RrFont *f)
 {
-    return f->height + (shadow ? offset : 0);
+#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 */
 }
 
-int font_max_char_width(ObFont *f)
+gint RrFontMaxCharWidth(const RrFont *f)
 {
     return (signed) f->xftfont->max_advance_width;
 }
 
-void font_draw(XftDraw *d, TextureText *t, Rect *position)
+void RrFontDraw(XftDraw *d, RrTextureText *t, RrRect *area)
 {
-    int x,y,w,h;
+    gint x,y,w,h;
     XftColor c;
+    GString *text;
+    gint mw, mh;
+    size_t l;
+    gboolean shortened = FALSE;
 
-    x = position->x;
-    y = position->y;
-    w = position->width;
-    h = position->height;
+#ifdef USE_PANGO
+    PangoLayout *pl;
+    PangoLayoutLine *pll;
+    PangoContext *context;
+    GSList *p;
 
-    /* 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) - 1) / 2;
+    context = pango_xft_get_context (RrDisplay(t->font->inst), RrScreen(t->font->inst));
+    pl = pango_layout_new (context);
+#endif /* USE_PANGO */
 
-    x += 3; /* XXX figure out X with justification */
+    /* 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;
 
-    if (t->shadow) {
+    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);
+        /* if the elipses are too large, don't show them at all */
+        if (ELIPSES_LENGTH(t->font) > area->width)
+            shortened = FALSE;
+        font_measure_full(t->font, text->str, &mw, &mh);
+        mw += ELIPSES_LENGTH(t->font);
+    }
+    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;
+    }
 
-        if (t->tint >= 0) {
+    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;
             c.color.blue = 0;
-            c.color.alpha = 0xffff * t->tint / 100; /* transparent shadow */
-            c.pixel = BlackPixel(ob_display, ob_screen);
+            c.color.alpha = 0xffff * t->font->tint / 100;
+            c.pixel = BlackPixel(RrDisplay(t->font->inst),
+                                 RrScreen(t->font->inst));
         } else {
-            c.color.red = 0xffff * -t->tint / 100;
-            c.color.green = 0xffff * -t->tint / 100;
-            c.color.blue = 0xffff * -t->tint / 100;
-            c.color.alpha = 0xffff * -t->tint / 100; /* transparent shadow */
-            c.pixel = WhitePixel(ob_display, ob_screen);
+            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));
+#ifndef USE_PANGO
         }  
-        XftDrawStringUtf8(d, &c, t->font->xftfont, x + t->offset,
-                          t->font->xftfont->ascent + y + t->offset,
-                          (FcChar8*)t->string, strlen(t->string));
+        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*)t->string, strlen(t->string));
+                      (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;
 }