[project @ 2004-02-15 22:19:43 by jmb]

Font support in draw export.

svn path=/import/netsurf/; revision=549

render/font.h

@@ -12,6 +12,7 @@
 #include "netsurf/css/css.h"
 
 struct font_data {
+        int id;
 	int handle;
 	unsigned int size;
 	unsigned int space_width;
@@ -26,5 +27,6 @@ void font_position_in_string(const char* text, struct font_data *font,
 		unsigned int length, unsigned long x, int* char_offset, int* pixel_offset);
 char * font_split(struct font_data *data, const char * text, unsigned int length,
 		unsigned int width, unsigned int *used_width);
+const char *enumerate_fonts(struct font_set *set, int *handle);
 
 #endif

riscos/font.c

@@ -118,6 +118,36 @@ struct font_set *font_new_set()
 	return set;
 }
 
+/**
+ * Font enumerator
+ *
+ * Call this multiple times to enumerate all available font names.
+ * *handle should be zero (0) on first call.
+ *
+ * Returns a NULL pointer and a handle of -1 if there are no more fonts.
+ */
+const char *enumerate_fonts(struct font_set* set, int *handle)
+{
+        int i;
+
+        assert(set);
+
+        if (*handle < 0 || handle == 0) { /* a bit of sanity checking */
+                *handle = -1;
+                return NULL;
+        }
+
+        for (i = *handle; i!=FONT_FAMILIES*FONT_FACES && set->font[i]==0;
+             i++) ; /* find next font in use */
+
+        if (i == FONT_FAMILIES*FONT_FACES) { /* no more fonts */
+                *handle = -1;
+                return NULL;
+        }
+
+        *handle = i+1; /* update handle for next call */
+        return font_table[i];
+}
 
 /**
  * Open a font for use based on a css_style.
@@ -217,6 +247,7 @@ struct font_data *font_open(struct font_set *set, struct css_style *style)
 	        }
 	}
 
+        data->id = f;
 	data->handle = handle;
 	data->size = size;
 	data->space_width = font_width(data, " ", 1);

riscos/save_draw.c

@@ -23,8 +23,7 @@
 #include "netsurf/utils/utils.h"
 
 /**
- * \todo fix fonts (see below)
- *       fix jpegs
+ * \todo fix jpegs
  *       GUI
  */
 
@@ -36,7 +35,7 @@
 static unsigned long length;
 static drawfile_diagram *d;
 
-static void add_font_table(void);
+static void add_font_table(struct content *content);
 static void add_options(void);
 static void add_objects(struct content *content, struct box *box,
                         unsigned long cbc, long x, long y);
@@ -75,7 +74,7 @@ void save_as_draw(struct content *c) {
 	d->bbox.x1 = A4PAGEWIDTH*512;
 	d->bbox.y1 = A4PAGEHEIGHT*512;
 
-	add_font_table();
+	add_font_table(c);
 
 	add_options();
 
@@ -99,29 +98,52 @@ void save_as_draw(struct content *c) {
  * add font table
  * \todo add all fonts required. for now we just use Homerton Medium
  */
-void add_font_table() {
+void add_font_table(struct content *content) {
 
-        drawfile_object *dro = xcalloc(8+28, sizeof(char));
-        drawfile_font_table *ft = xcalloc(28, sizeof(char));
-        drawfile_FONT_DEF(40) fd[] = {
-              { 1, "Homerton.Medium\\ELatin1" },
-              /*{ 2, "Homerton.Medium.Oblique\\ELatin1" },
-              { 3, "Homerton.Bold\\ELatin1" },
-              { 4, "Homerton.Bold.Oblique\\ELatin1" },*/
-        };
+        drawfile_object *dro;
+        drawfile_font_table *ft = xcalloc(0, sizeof(char));
+        drawfile_font_def *fd = xcalloc(0, sizeof(char));
+        int handle = 0, ftlen=0;
+        const char *name;
 
-        memcpy(ft->font_def, (char*)&fd, 28);
+        do {
+          name = enumerate_fonts(content->data.html.fonts, &handle);
+
+          if (handle == -1 && name == 0)
+                  break;
+
+          /* at this point, handle is always (font_table entry + 1) */
+          fd = xrealloc(fd, 1+strlen(name)+1);
+          memset(fd, 0, 1+strlen(name)+1);
+          fd->font_index = handle;
+          memcpy((char*)&fd->font_name, name, strlen(name));
+
+          ft = xrealloc(ft, ftlen+1+strlen(name)+1);
+          memcpy((char*)ft+ftlen, fd, 1+strlen(name)+1);
+
+          ftlen += 1+strlen(name)+1;
+
+        } while (handle != -1);
+
+        /* word align end of list */
+        if (((ftlen+3)/4*4) != 0) {
+          ft = xrealloc(ft, (unsigned)(ftlen+3)/4*4);
+          ftlen = (ftlen+3)/4*4;
+        }
+
+        dro = xcalloc((unsigned)8+ftlen, sizeof(char));
 
 	dro->type = drawfile_TYPE_FONT_TABLE;
-	dro->size = 8+28;
-	memcpy((char*)&dro->data.font_table, ft, 28);
+	dro->size = 8+ftlen;
+	memcpy((char*)&dro->data.font_table, ft, (unsigned)ftlen);
 
         d = xrealloc(d, (unsigned)length+dro->size);
 
         memcpy((char*)&d->objects, dro, (unsigned)dro->size);
 
-	length += 8+28;
+	length += 8+ftlen;
 
+        xfree(fd);
 	xfree(ft);
 	xfree(dro);
 }
@@ -242,7 +264,7 @@ void add_objects(struct content *content, struct box *box,
 			dt->bbox.y1 = y;
 			dt->fill = box->style->color<<8;
 			dt->bg_hint = cbc<<8;
-			dt->style.font_index = 1;
+			dt->style.font_index = box->font->id+1;
 			dt->xsize = box->font->size*40;
 			dt->ysize = box->font->size*40;
 			dt->base.x = x;

riscos/save_draw.h

@@ -2,13 +2,13 @@
  * This file is part of NetSurf, http://netsurf.sourceforge.net/
  * Licensed under the GNU General Public License,
  *                http://www.opensource.org/licenses/gpl-license
- * Copyright 2003 John M Bell <jmb202@ecs.soton.ac.uk>
+ * Copyright 2004 John M Bell <jmb202@ecs.soton.ac.uk>
  */
 
 #ifndef _NETSURF_RISCOS_SAVE_DRAW_H_
 #define _NETSURF_RISCOS_SAVE_DRAW_H_
 
-#include "netsurf/content/content.h"
+struct content;
 
 void save_as_draw(struct content *c);