Miscellany

static void
efhd_set_widget_bg (GtkWidget *w, GtkHTML *html)
{
	GtkStyle *style;
	GdkColor color;

	style = gtk_widget_get_style((GtkWidget *)html);
	if (style) {
		int state = GTK_WIDGET_STATE(html);
		gushort r, g, b;

#define SCALE (238)
		/* choose a suitably darker or lighter colour */
		r = style->base[state].red >> 8;
		g = style->base[state].green >> 8;
		b = style->base[state].blue >> 8;

		if (r+b+g > 128*3) {
			r = (r*SCALE) >> 8;
			g = (g*SCALE) >> 8;
			b = (b*SCALE) >> 8;
		} else {
			r = 128 - ((SCALE * r) >> 9);
			g = 128 - ((SCALE * g) >> 9);
			b = 128 - ((SCALE * b) >> 9);
		}
			
		color.red = r;
		color.green = g;
		color.blue = b;

		gtk_widget_modify_bg (w, state, &color);		
//		printf ("code\n");
//		printf ("r: %d g: %d b :%d\n", r, g, b);
//		printf ("shift r: %d g: %d b:%d \n", r<<16, g<<8, b);
//		printf ("code end \n");

#undef SCALE
	}
	
}
static gboolean
efhd_attachment_image(EMFormatHTML *efh, GtkHTMLEmbedded *eb, EMFormatHTMLPObject *pobject)
{
	GtkWidget *box;	
	EMFormatHTMLJob *job;
	struct _attach_puri *info;
	GdkPixbuf *pixbuf;
	GtkTargetEntry drag_types[] = {
		{ NULL, 0, 0 },
		{ "text/uri-list", 0, 1 },
	};
	char *simple_type;

	info = (struct _attach_puri *)em_format_find_puri((EMFormat *)efh, pobject->classid);

	info->image = (GtkImage *)gtk_image_new();
	pixbuf = em_icon_stream_get_image(pobject->classid, info->fit_width, info->fit_height);
	if (pixbuf) {
		gtk_image_set_from_pixbuf(info->image, pixbuf);
		g_object_unref(pixbuf);
	} else {
		job = em_format_html_job_new(efh, efhd_write_icon_job, pobject);	
		job->stream = (CamelStream *)em_icon_stream_new((GtkImage *)info->image, pobject->classid, info->fit_width, info->fit_height, TRUE);
		em_format_html_job_queue(efh, job);
	}

	box = gtk_event_box_new();
	gtk_container_add((GtkContainer *)box, (GtkWidget *)info->image);
	efhd_set_widget_bg (box, efh->html);

	gtk_widget_show_all(box);
	gtk_container_add((GtkContainer *)eb, box);
	g_signal_connect(eb, "size_allocate", G_CALLBACK(efhd_image_resized), info);

	simple_type = camel_content_type_simple(((CamelDataWrapper *)pobject->part)->mime_type);
	camel_strdown(simple_type);
	
	drag_types[0].target = simple_type;
	gtk_drag_source_set(box, GDK_BUTTON1_MASK, drag_types, sizeof(drag_types)/sizeof(drag_types[0]), GDK_ACTION_COPY);
	g_free(simple_type);

	g_signal_connect(box, "drag-data-get", G_CALLBACK(efhd_drag_data_get), pobject);
	g_signal_connect (box, "drag-data-delete", G_CALLBACK(efhd_drag_data_delete), pobject);

	g_signal_connect(box, "button_press_event", G_CALLBACK(efhd_image_popup), info);
	g_signal_connect(box, "enter-notify-event", G_CALLBACK(efhd_change_cursor), info);
	g_signal_connect(box, "popup_menu", G_CALLBACK(efhd_attachment_popup_menu), info);
	g_signal_connect(box, "button-press-event", G_CALLBACK(efhd_image_fit_width), info);	

	return TRUE;
}