std::unique_ptr<Expression> PostfixOperatorParser::parse(ElsaParser* parser, std::unique_ptr<Expression> left)
{
auto exp = std::make_unique<PostfixOperatorExpression>();
exp->set_expression(std::move(left));
exp->set_operator(parser->current_token()->get_type());
// Consume the operator token
parser->consume();
exp->set_type(parser->type_checker().get_expression_type(exp->get_expression()));
if(parser->current_token()->get_type() == TokenType::Semicolon)
parser->consume(TokenType::Semicolon);
return std::move(exp);
}
void cairo_context::add_text(glyph_positions const& pos,
cairo_face_manager & manager,
composite_mode_e comp_op,
composite_mode_e halo_comp_op,
double scale_factor)
{
pixel_position const& base_point = pos.get_base_point();
const double sx = base_point.x;
const double sy = base_point.y;
for (auto const& glyph_pos : pos)
{
glyph_info const& glyph = glyph_pos.glyph;
glyph.face->set_character_sizes(glyph.format->text_size * scale_factor);
}
//render halo
double halo_radius = 0;
set_operator(halo_comp_op);
for (auto const& glyph_pos : pos)
{
glyph_info const& glyph = glyph_pos.glyph;
halo_radius = glyph.format->halo_radius * scale_factor;
// make sure we've got reasonable values.
if (halo_radius <= 0.0 || halo_radius > 1024.0) continue;
double text_size = glyph.format->text_size * scale_factor;
cairo_matrix_t matrix;
matrix.xx = text_size * glyph_pos.rot.cos;
matrix.xy = text_size * glyph_pos.rot.sin;
matrix.yx = text_size * -glyph_pos.rot.sin;
matrix.yy = text_size * glyph_pos.rot.cos;
matrix.x0 = 0;
matrix.y0 = 0;
set_font_matrix(matrix);
set_font_face(manager, glyph.face);
pixel_position new_pos = glyph_pos.pos + glyph.offset.rotate(glyph_pos.rot);
glyph_path(glyph.glyph_index, pixel_position(sx + new_pos.x, sy - new_pos.y));
set_line_width(2.0 * halo_radius);
set_line_join(ROUND_JOIN);
set_color(glyph.format->halo_fill, glyph.format->halo_opacity);
stroke();
}
set_operator(comp_op);
for (auto const& glyph_pos : pos)
{
glyph_info const& glyph = glyph_pos.glyph;
double text_size = glyph.format->text_size * scale_factor;
cairo_matrix_t matrix;
matrix.xx = text_size * glyph_pos.rot.cos;
matrix.xy = text_size * glyph_pos.rot.sin;
matrix.yx = text_size * -glyph_pos.rot.sin;
matrix.yy = text_size * glyph_pos.rot.cos;
matrix.x0 = 0;
matrix.y0 = 0;
set_font_matrix(matrix);
set_font_face(manager, glyph.face);
pixel_position new_pos = glyph_pos.pos + glyph.offset.rotate(glyph_pos.rot);
set_color(glyph.format->fill, glyph.format->text_opacity);
show_glyph(glyph.glyph_index, pixel_position(sx + new_pos.x, sy - new_pos.y));
}
}
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);
}
