nyx::point text_extents(F const& fnt, std::string const& x, size_t maxx, size_t maxy) { if (!maxx || !maxy) { return text_extents(fnt, x); } return nyx::point(maxx * average_char_width(fnt), maxy * line_length(fnt)); }
static void sushi_font_widget_size_request (GtkWidget *drawing_area, gint *width, gint *height, gint *min_height) { SushiFontWidget *self = SUSHI_FONT_WIDGET (drawing_area); SushiFontWidgetPrivate *priv = self->priv; gint i, pixmap_width, pixmap_height; cairo_text_extents_t extents; cairo_font_extents_t font_extents; cairo_font_face_t *font; gint *sizes = NULL, n_sizes, alpha_size, title_size; cairo_t *cr; cairo_surface_t *surface; FT_Face face = priv->face; GtkStyleContext *context; GtkStateFlags state; GtkBorder padding; if (face == NULL) { if (width != NULL) *width = 1; if (height != NULL) *height = 1; if (min_height != NULL) *min_height = 1; return; } if (min_height != NULL) *min_height = -1; surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, SURFACE_SIZE, SURFACE_SIZE); cr = cairo_create (surface); context = gtk_widget_get_style_context (drawing_area); state = gtk_style_context_get_state (context); gtk_style_context_get_padding (context, state, &padding); sizes = build_sizes_table (face, &n_sizes, &alpha_size, &title_size); /* calculate size of pixmap to use */ pixmap_width = padding.left + padding.right; pixmap_height = padding.top + padding.bottom; font = cairo_ft_font_face_create_for_ft_face (face, 0); cairo_set_font_face (cr, font); cairo_font_face_destroy (font); if (self->priv->font_name != NULL) { cairo_set_font_size (cr, title_size); cairo_font_extents (cr, &font_extents); text_extents (cr, self->priv->font_name, &extents); pixmap_height += font_extents.ascent + font_extents.descent + extents.y_advance + LINE_SPACING; pixmap_width = MAX (pixmap_width, extents.width + padding.left + padding.right); } pixmap_height += SECTION_SPACING / 2; cairo_set_font_size (cr, alpha_size); cairo_font_extents (cr, &font_extents); if (self->priv->lowercase_text != NULL) { text_extents (cr, self->priv->lowercase_text, &extents); pixmap_height += font_extents.ascent + font_extents.descent + extents.y_advance + LINE_SPACING; pixmap_width = MAX (pixmap_width, extents.width + padding.left + padding.right); } if (self->priv->uppercase_text != NULL) { text_extents (cr, self->priv->uppercase_text, &extents); pixmap_height += font_extents.ascent + font_extents.descent + extents.y_advance + LINE_SPACING; pixmap_width = MAX (pixmap_width, extents.width + padding.left + padding.right); } if (self->priv->punctuation_text != NULL) { text_extents (cr, self->priv->punctuation_text, &extents); pixmap_height += font_extents.ascent + font_extents.descent + extents.y_advance + LINE_SPACING; pixmap_width = MAX (pixmap_width, extents.width + padding.left + padding.right); } if (self->priv->sample_string != NULL) { pixmap_height += SECTION_SPACING; for (i = 0; i < n_sizes; i++) { cairo_set_font_size (cr, sizes[i]); cairo_font_extents (cr, &font_extents); text_extents (cr, self->priv->sample_string, &extents); pixmap_height += font_extents.ascent + font_extents.descent + extents.y_advance + LINE_SPACING; pixmap_width = MAX (pixmap_width, extents.width + padding.left + padding.right); if ((i == 7) && (min_height != NULL)) *min_height = pixmap_height; } } pixmap_height += padding.bottom + SECTION_SPACING; if (min_height != NULL && *min_height == -1) *min_height = pixmap_height; if (width != NULL) *width = pixmap_width; if (height != NULL) *height = pixmap_height; cairo_destroy (cr); cairo_surface_destroy (surface); g_free (sizes); }
int main(int argc, char *argv[]) { int fd; /* fd to Erlang node */ unsigned char buf[BUFSIZE]; /* Buffer for incoming message */ ErlMessage emsg; /* Incoming message */ int c_node; /* C-Node number */ char cookie[EI_MAX_COOKIE_SIZE+1]; /* Shared cookie */ short creation; /* ?? */ char *erlang_node; /* Erlang node to connect to */ char *cookie_opt; /* Where to source our cookie */ char *cookie_data; /* Either the filename or literal cookie */ ETERM *fromp, *msgp, *fnp, *argp, *resp; int received, loop = 1; if (argc < 5) { quit_with_error("invalid_args"); } c_node = atoi(argv[1]); cookie_opt = argv[2]; cookie_data = argv[3]; creation = 0; erlang_node = argv[4]; erl_init(NULL, 0); get_cookie(cookie_opt, cookie_data, cookie); if (!erl_connect_init(c_node, cookie, creation)) { quit_with_error("erl_connect_init"); } if ((fd = erl_connect(erlang_node)) < 0) { quit_with_error("erl_connect"); } while (loop) { received = erl_receive_msg(fd, buf, BUFSIZE, &emsg); if (received == ERL_TICK) { /* ignore */ } else if (received == ERL_ERROR) { loop = 0; } else { if (emsg.type == ERL_REG_SEND) { fromp = erl_element(2, emsg.msg); msgp = erl_element(3, emsg.msg); fnp = erl_element(1, msgp); argp = erl_element(2, msgp); if (is_function(fnp, "stop")) { loop = 0; resp = erl_format("{c_node, ~i, ok}", c_node); } else if (is_function(fnp, "new_image_blank")) { resp = new_image_blank(argp, c_node); } else if (is_function(fnp, "write_to_png")) { resp = write_to_png(argp, c_node); } else if (is_function(fnp, "close_image")) { resp = close_image(argp, c_node); } else if (is_function(fnp, "save")) { resp = save(argp, c_node); } else if (is_function(fnp, "restore")) { resp = restore(argp, c_node); } else if (is_function(fnp, "set_line_width")) { resp = set_line_width(argp, c_node); } else if (is_function(fnp, "set_source_rgba")) { resp = set_source_rgba(argp, c_node); } else if (is_function(fnp, "set_operator")) { resp = set_operator(argp, c_node); } else if (is_function(fnp, "move_to")) { resp = move_to(argp, c_node); } else if (is_function(fnp, "line_to")) { resp = line_to(argp, c_node); } else if (is_function(fnp, "curve_to")) { resp = curve_to(argp, c_node); } else if (is_function(fnp, "rel_move_to")) { resp = rel_move_to(argp, c_node); } else if (is_function(fnp, "rel_line_to")) { resp = rel_line_to(argp, c_node); } else if (is_function(fnp, "rel_curve_to")) { resp = rel_curve_to(argp, c_node); } else if (is_function(fnp, "rectangle")) { resp = rectangle(argp, c_node); } else if (is_function(fnp, "arc")) { resp = arc(argp, c_node); } else if (is_function(fnp, "arc_negative")) { resp = arc_negative(argp, c_node); } else if (is_function(fnp, "close_path")) { resp = close_path(argp, c_node); } else if (is_function(fnp, "paint")) { resp = paint(argp, c_node); } else if (is_function(fnp, "fill")) { resp = fill(argp, c_node); } else if (is_function(fnp, "fill_preserve")) { resp = fill_preserve(argp, c_node); } else if (is_function(fnp, "stroke")) { resp = stroke(argp, c_node); } else if (is_function(fnp, "stroke_preserve")) { resp = stroke_preserve(argp, c_node); } else if (is_function(fnp, "translate")) { resp = translate(argp, c_node); } else if (is_function(fnp, "scale")) { resp = scale(argp, c_node); } else if (is_function(fnp, "rotate")) { resp = rotate(argp, c_node); } else if (is_function(fnp, "select_font")) { resp = select_font_face(argp, c_node); } else if (is_function(fnp, "set_font_size")) { resp = set_font_size(argp, c_node); } else if (is_function(fnp, "show_text")) { resp = show_text(argp, c_node); } else if (is_function(fnp, "text_extents")) { resp = text_extents(argp, c_node); } else if (is_function(fnp, "surface_create_from_png")) { resp = surface_create_from_png(argp, c_node); } else if (is_function(fnp, "surface_create_from_png_stream")) { resp = surface_create_from_png_stream(argp, c_node); } else if (is_function(fnp, "surface_get_width")) { resp = surface_get_width(argp, c_node); } else if (is_function(fnp, "surface_get_height")) { resp = surface_get_height(argp, c_node); } else if (is_function(fnp, "surface_destroy")) { resp = surface_destroy(argp, c_node); } else if (is_function(fnp, "set_source_surface")) { resp = set_source_surface(argp, c_node); } else if (is_function(fnp, "write_to_png_stream")) { resp = write_to_png_stream(argp, c_node); } else { resp = erl_format("{c_node, ~i, {error, '~s'}}", c_node, "unknown command"); } erl_send(fd, fromp, resp); erl_free_term(emsg.from); erl_free_term(emsg.msg); erl_free_term(fromp); erl_free_term(msgp); erl_free_term(fnp); erl_free_term(argp); erl_free_term(resp); } } } exit(EXIT_SUCCESS); }