start of simple font viewer program. Doesn't correctl display the text yet

2002-12-04  James Henstridge  <james@daa.com.au>

    * src/font-view.c (main): start of simple font viewer program.
    Doesn't correctl display the text yet though :(

    * src/ftstream-vfs.c (FT_New_Face_From_URI): rename function to
    match naming scheme used elsewhere.

vfs-methods/fontilus/ChangeLog

@@ -1,3 +1,11 @@
+2002-12-04  James Henstridge  <james@daa.com.au>
+
+	* src/font-view.c (main): start of simple font viewer program.
+	Doesn't correctl display the text yet though :(
+
+	* src/ftstream-vfs.c (FT_New_Face_From_URI): rename function to
+	match naming scheme used elsewhere.
+
 2002-12-02  James Henstridge  <james@daa.com.au>
 
 	* src/thumbnailer.c (draw_char): split code for drawing character

vfs-methods/fontilus/Makefile.am

@@ -1,11 +1,11 @@
 
-INCLUDES = $(FONT_METHOD_CFLAGS) $(THUMBNAILER_CFLAGS) \
-  -DDIRECTORY_DIR=\"$(vfsdirectorydir)\"
+INCLUDES = $(FONT_METHOD_CFLAGS) $(THUMBNAILER_CFLAGS) $(FONT_VIEW_CFLAGS) \
+  -DDIRECTORY_DIR=\"$(vfsdirectorydir)\" 
 
 vfsmoduledir = $(libdir)/gnome-vfs-2.0/modules
 vfsmodule_LTLIBRARIES = libfont-method.la
 
-noinst_PROGRAMS = thumbnailer
+noinst_PROGRAMS = thumbnailer font-view
 
 libfont_method_la_LDFLAGS = -module -avoid-version
 libfont_method_la_LIBADD = $(FONT_METHOD_LIBS)
@@ -20,6 +20,9 @@ vfsdirectory_DATA = font-method.directory
 thumbnailer_LDADD = $(THUMBNAILER_LIBS)
 thumbnailer_SOURCES = ftstream-vfs.c thumbnailer.c
 
+font_view_LDADD = $(FONT_VIEW_LIBS)
+font_view_SOURCES = ftstream-vfs.c font-view.c
+
 EXTRA_DIST = \
   font-method.conf \
   font-method.directory

vfs-methods/fontilus/font-view.c

@@ -0,0 +1,111 @@
+/* -*- mode: C; c-basic-offset: 4 -*- */
+#include <ft2build.h>
+#include FT_FREETYPE_H
+#include <X11/Xft/Xft.h>
+#include <gtk/gtk.h>
+#include <gdk/gdkx.h>
+
+static XftFont *font;
+static XftDraw *draw = NULL;
+static XftColor colour;
+
+FT_Error FT_New_Face_From_URI(FT_Library library,
+			      const gchar *uri,
+			      FT_Long face_index,
+			      FT_Face *aface);
+
+static void
+realize(GtkWidget *widget)
+{
+    Display *xdisplay;
+    Drawable xdrawable;
+    Visual *xvisual;
+    Colormap xcolormap;
+
+    xdisplay = GDK_WINDOW_XDISPLAY(widget->window);
+    xdrawable = GDK_DRAWABLE_XID(widget->window);
+    xvisual = GDK_VISUAL_XVISUAL(gdk_drawable_get_visual(widget->window));
+    xcolormap = GDK_COLORMAP_XCOLORMAP(gdk_drawable_get_colormap(widget->window));
+
+    draw = XftDrawCreate(xdisplay, xdrawable, xvisual, xcolormap);
+    if (!draw) {
+	g_warning("could not create Xft drawable");
+	return;
+    }
+    XftColorAllocName(xdisplay, xvisual, xcolormap, "black", &colour);
+}
+
+static gboolean
+expose_event(GtkWidget *widget, GdkEventExpose *event)
+{
+    XftDrawString8(draw, &colour, font, 50, 50, "Foo bar", 7);
+}
+
+int
+main(int argc, char **argv)
+{
+    FT_Error error;
+    FT_Library library;
+    FT_Face face;
+    FcPattern *pattern;
+    GtkWidget *window;
+    GtkWidget *drawing_area;
+    GdkColor white = { 0, 0xffff, 0xffff, 0xffff };
+
+    gtk_init(&argc, &argv);
+
+    if (argc != 2) {
+	g_printerr("usage: foo fontfile\n");
+	return 1;
+    }
+
+    if (!gnome_vfs_init()) {
+	g_printerr("could not initialise gnome-vfs\n");
+	return 1;
+    }
+
+    error = FT_Init_FreeType(&library);
+    if (error) {
+	g_printerr("could not initialise freetype\n");
+	return 1;
+    }
+
+    error = FT_New_Face_From_URI(library, argv[1], 0, &face);
+    if (error) {
+	g_printerr("could not load face '%s'\n", argv[1]);
+	return 1;
+    }
+
+    pattern = FcPatternBuild(NULL,
+			     FC_FT_FACE, FcTypeFTFace, face,
+			     FC_PIXEL_SIZE, FcTypeDouble, 48.0,
+			     NULL);
+    font = XftFontOpenPattern(GDK_DISPLAY(), pattern);
+    if (!font) {
+	g_printerr("could not load face\n");
+	return 1;
+    }
+
+    g_message("ascent=%d, descent=%d, height=%d",
+	      font->ascent, font->descent, font->height);
+
+    window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+    gtk_window_set_title(GTK_WINDOW(window), "Foo");
+
+    drawing_area = gtk_drawing_area_new();
+    gtk_widget_modify_bg(drawing_area, GTK_STATE_NORMAL, &white);
+    gtk_widget_set_double_buffered(drawing_area, FALSE);
+    gtk_widget_set_size_request(drawing_area, 300, 300);
+    gtk_container_add(GTK_CONTAINER(window), drawing_area);
+
+    g_signal_connect_after(drawing_area, "realize",
+			   G_CALLBACK(realize), NULL);
+    g_signal_connect(drawing_area, "expose_event",
+		     G_CALLBACK(expose_event), NULL);
+    g_signal_connect(window, "destroy", G_CALLBACK(gtk_main_quit), NULL);
+
+    gtk_widget_show_all(window);
+
+    gtk_main();
+    return 0;
+}

vfs-methods/fontilus/ftstream-vfs.c

@@ -81,10 +81,10 @@ vfs_stream_open(FT_Stream stream,
 
 /* load a typeface from a URI */
 FT_Error
-FT_New_URI_Face(FT_Library           library,
-		const gchar*         uri,
-		FT_Long              face_index,
-		FT_Face             *aface)
+FT_New_Face_From_URI(FT_Library           library,
+		     const gchar*         uri,
+		     FT_Long              face_index,
+		     FT_Face             *aface)
 {
     FT_Open_Args args;
     FT_Stream stream;

vfs-methods/fontilus/thumbnailer.c

@@ -11,10 +11,10 @@
 #define FONT_SIZE 64
 #define PAD_PIXELS 4
 
-FT_Error FT_New_URI_Face(FT_Library library,
-			 const gchar *uri,
-			 FT_Long face_index,
-			 FT_Face *aface);
+FT_Error FT_New_Face_From_URI(FT_Library library,
+			      const gchar *uri,
+			      FT_Long face_index,
+			      FT_Face *aface);
 
 static void
 draw_bitmap(GdkPixbuf *pixbuf, FT_Bitmap *bitmap, gint off_x, gint off_y)
@@ -196,7 +196,7 @@ main(int argc, char **argv)
 	return 1;
     }
 
-    error = FT_New_URI_Face(library, argv[1], 0, &face);
+    error = FT_New_Face_From_URI(library, argv[1], 0, &face);
     if (error) {
 	g_printerr("could not load face '%s'\n", argv[1]);
 	return 1;