Exemplo n.º 1
0
/**
 * gnome_print_pango_glyph_string:
 * @gpc: a #GnomePrintContext
 * @font: the #PangoFont that the glyphs in @glyphs are from
 * @glyphs: a #PangoGlyphString
 * 
 * Draws the glyphs in @glyphs into the specified #GnomePrintContext.
 * Positioning information in @glyphs is transformed by the current
 * transformation matrix, the glyphs are drawn in the current color,
 * and the glyphs are positioned so that the left edge of the baseline
 * is at the current point.
 **/
void
gnome_print_pango_glyph_string (GnomePrintContext *gpc, PangoFont *font, PangoGlyphString  *glyphs)
{
	GnomeGlyphList *glyph_list;
	GnomeFont *gnome_font;
	gint x_off = 0;
	gint i;

	g_return_if_fail (GNOME_IS_PRINT_CONTEXT (gpc));
	g_return_if_fail (PANGO_IS_FONT (font));
	g_return_if_fail (glyphs != NULL);
	
	gnome_font = font_from_pango_font (font);
	if (!gnome_font)
		return;

	glyph_list = gnome_glyphlist_new ();

	gnome_glyphlist_font (glyph_list, gnome_font);
	g_object_unref (gnome_font);
	
	gnome_glyphlist_color (glyph_list, gp_gc_get_rgba (gpc->gc));
	
	for (i = 0; i < glyphs->num_glyphs; i++) {
		PangoGlyphInfo *gi = &glyphs->glyphs[i];

		if (gi->glyph != PANGO_GLYPH_EMPTY) {
			int x = x_off + gi->geometry.x_offset;
			int y = gi->geometry.y_offset;
			
			gnome_glyphlist_moveto (glyph_list,
						(gdouble) x / PANGO_SCALE, (gdouble) -y / PANGO_SCALE);
			gnome_glyphlist_glyph (glyph_list, gi->glyph);
		}
			
		x_off += glyphs->glyphs[i].geometry.width;
	}

	gnome_print_glyphlist (gpc, glyph_list);
	gnome_glyphlist_unref (glyph_list);
}
Exemplo n.º 2
0
static GnomePrintJob *create_job(GnomePrintConfig *gpc)
{
    GnomeFontFace *font_face;
    PangoFontDescription *font_desc;
    GtkTextIter start, end;
    gchar *text, *p;

    /* Get contents of TextBuffer */
    GtkTextBuffer *buffer = pub->mw->buffer;
    gtk_text_buffer_get_bounds(buffer, &start, &end);
    text = g_strchomp(gtk_text_buffer_get_text(buffer, &start, &end, FALSE));

    /* Initialize job */
    job = gnome_print_job_new(gpc);
    gnome_print_job_get_page_size_from_config(gpc, &page_width, &page_height);
    gnome_print_config_get_length(gpc,
                                  (guchar *)GNOME_PRINT_KEY_PAGE_MARGIN_LEFT, &margin_left, NULL);
    gnome_print_config_get_length(gpc,
                                  (guchar *)GNOME_PRINT_KEY_PAGE_MARGIN_RIGHT, &margin_right, NULL);
    gnome_print_config_get_length(gpc,
                                  (guchar *)GNOME_PRINT_KEY_PAGE_MARGIN_TOP, &margin_top, NULL);
    gnome_print_config_get_length(gpc,
                                  (guchar *)GNOME_PRINT_KEY_PAGE_MARGIN_BOTTOM, &margin_bottom, NULL);
    /*
    g_print("margin_left   = %f\n", margin_left);
    g_print("margin_right  = %f\n", margin_right);
    g_print("margin_top    = %f\n", margin_top);
    g_print("margin_bottom = %f\n", margin_bottom);
    	margin_top = margin_left;
    	margin_bottom = margin_left;
    */
    /* Initialize font */
    font_desc = gtk_widget_get_style(pub->mw->view)->font_desc;
    font_face = gnome_font_face_find_closest_from_pango_description(font_desc);
    font = gnome_font_face_get_font_default(font_face, FONT_SIZE);
//		pango_font_description_get_size(font_desc) / PANGO_SCALE);
//	g_print("PANGO_SCALE = %d\n", PANGO_SCALE);
//	g_print("font_size = %d\n", pango_font_description_get_size(font_desc));
    line_height = gnome_font_get_size(font);
    tab_width = gnome_font_face_get_glyph_width(font_face,
                gnome_font_face_lookup_default(font_face, g_utf8_get_char(" ")))
                / 1000 * FONT_SIZE * get_current_tab_width();
    DV(	g_print("tab_width = %f\n", tab_width));

    /* Draw texts to canvas */
    gpx = gnome_print_job_get_context(job);
    gnome_print_beginpage(gpx, NULL);
    gnome_print_setfont(gpx, font);

    page_x = margin_left;	// TODO RTL
    page_y = page_height - margin_top - line_height;
    gnome_print_moveto(gpx, page_x, page_y);

    gl = gnome_glyphlist_from_text_dumb(font, 0x000000ff, 0, 0, (guchar *)"");
    gl_width = 0;

    p = text;

    while (*p != '\0') {
        gunichar ch = g_utf8_get_char(p);
        gint glyph = gnome_font_lookup_default(font, ch);
        if (!glyph) {
            if (ch == '\n') {
                print_glyph_list(page_x + gl_width > page_width - margin_right);
                move_pen_to_newline();
                DV(				g_print("LF\n"));
            } else if (ch == '\t') {
                print_glyph_list(page_x + gl_width > page_width - margin_right);
                /*				page_x = page_x + tab_width
                					- ((page_x - margin_left) % tab_width); */
                gdouble tmp_x = margin_left;
                do {
                    tmp_x += tab_width;
                } while (tmp_x < page_x + 0.000001); // FIXME
                DV(				g_print("HT "));
                DV(				g_print("%f -> %f\n", page_x, tmp_x));
                page_x = tmp_x;
                gnome_print_moveto(gpx, page_x, page_y);
                /*			} else if (ch == '\f') {
                DV(				g_print("FF\n"));
                				print_glyph_list(page_x + gl_width > page_width - margin_right);
                				move_pen_to_nextpage();
                */
            }
            else {
                GnomeFont *tmp_font = find_proper_font(ch);
                GnomeFontFace *tmp_face = gnome_font_get_face(tmp_font);
                gdouble g_width;

                glyph = gnome_font_lookup_default(tmp_font, ch);
                g_width = gnome_font_face_get_glyph_width(tmp_face, glyph)
                          / 1000 * FONT_SIZE;
                if (page_x + gl_width + g_width > page_width - margin_right) {
                    if (g_unichar_iswide(ch)) {
                        print_glyph_list(FALSE);
                        move_pen_to_newline();
                    } else
                        print_glyph_list(TRUE);
                }
                gnome_glyphlist_font(gl, tmp_font);
                gnome_glyphlist_glyph(gl, glyph);
                gnome_glyphlist_font(gl, font);
                gl_width += g_width;
                DV(				g_print("** "));
            }
        } else {
//			if (ch == ' ') {
            if (g_unichar_isspace(ch)) {
                DV(				g_print("SP "));
                DV(				g_print("\n"));
                print_glyph_list(page_x + gl_width > page_width - margin_right);
                page_x +=
                    gnome_font_face_get_glyph_width(font_face, glyph) / 1000 * FONT_SIZE;
                gnome_print_moveto(gpx, page_x, page_y);
            } else {
                gdouble g_width
                    = gnome_font_face_get_glyph_width(font_face, glyph)
                      / 1000 * FONT_SIZE;
                if (page_x + gl_width + g_width > page_width - margin_right) {
                    if (g_unichar_iswide(ch)) {
                        print_glyph_list(FALSE);
                        move_pen_to_newline();
                    } else
                        print_glyph_list(TRUE);
                }
                gnome_glyphlist_glyph(gl, glyph);
                gl_width += g_width;
                DV(				g_print("%02X ", glyph));
                DV(				g_print("%f (%f)\n", gl_width, gnome_font_get_glyph_width(font, glyph)));
            }
        }
        p = g_utf8_next_char(p);
    }
    print_glyph_list(page_x + gl_width > page_width - margin_right);
    DV(	g_print("\n[EOT]\n"));

    gnome_print_showpage(gpx);
    gnome_print_context_close(gpx);
    g_object_unref(gpx);

    gnome_glyphlist_unref(gl);
    gnome_font_unref(font);
    gnome_font_face_unref(font_face);
    gnome_print_job_close(job);

    return job;
}