invitation.h File Reference

Go to the source code of this file.

Functions
void	invitation_render (frame_buffer_t *buf, terminal_size_t size, const char *session_string, bool joining, int animation_frame, bool use_colors)
void	invitation_render_logo (frame_buffer_t *buf, int cols, int animation_frame, bool use_colors, bool compact)

Function Documentation

invitation_render()

void invitation_render	(	frame_buffer_t *	buf,
		terminal_size_t	size,
		const char *	session_string,
		bool	joining,
		int	animation_frame,
		bool	use_colors )

Render the discovery invitation into a frame without writing to the terminal. An empty string shows creation progress; joining shows connection progress. Text is plain ASCII, and the Run instruction immediately follows the string.

Definition at line 58 of file invitation.c.

                                    {
  if (!buf || size.cols < 2 || size.rows < 2)
    return;
  int cols = size.cols - 1;
  int rows = size.rows - 1;
  bool ready = session && session[0];
  const char *label =
      ready ? (joining ? "Connecting to session:" : "Share this string to connect:") : "Creating session...";
  char command[SESSION_STRING_BUFFER_SIZE + 32];
  snprintf(command, sizeof(command), "Run: ascii-chat %s", ready ? session : "");
  const char *lines[3] = {label, ready ? session : "", ready && !joining ? command : ""};
  int text_rows = 0;
  for (int i = 0; i < 3; ++i) {
    if (lines[i][0])
      text_rows += ((int)strlen(lines[i]) + cols - 1) / cols;
  }
  bool compact = cols < 52 || rows < text_rows + 7;
  int logo_rows = compact ? 1 : 4;
  bool show_logo = rows >= text_rows + logo_rows + 1;
  int height = text_rows + (show_logo ? logo_rows + 1 : 0);
  int top = rows > height ? (rows - height) / 2 : 0;
  int used = 0;
  for (; used < top; ++used)
    frame_buffer_printf(buf, "\n");
  if (show_logo) {
    invitation_render_logo(buf, cols, frame, colors, compact);
    frame_buffer_printf(buf, "\n");
    used += logo_rows + 1;
  }
  // On exceptionally short terminals prioritize the string and its command.
  int first = height > rows && ready ? 1 : 0;
  for (int i = first; i < 3 && used < rows; ++i) {
    const char *text = lines[i];
    size_t remaining = strlen(text);
    while (remaining && used < rows) {
      int length = remaining > (size_t)cols ? cols : (int)remaining;
      centered_line(buf, text, length, cols, frame, false);
      text += length;
      remaining -= length;
      ++used;
    }
  }
  // Erase stale logs/rows after a layout change without clearing between frames.
  frame_buffer_printf(buf, "\033[J");
}

References colors, frame_buffer_printf(), height, invitation_render_logo(), and SESSION_STRING_BUFFER_SIZE.

Referenced by ui_session_splash_render().

invitation_render_logo()

void invitation_render_logo	(	frame_buffer_t *	buf,
		int	cols,
		int	animation_frame,
		bool	use_colors,
		bool	compact )

Shared rainbow logo used by the startup splash and discovery invitation.

Definition at line 34 of file invitation.c.

                                                                                                 {
  const char *ascii_logo[4] = {
      "  __ _ ___  ___(_|_)       ___| |__   __ _| |_ ", " / _` / __|/ __| | |_____ / __| '_ \\ / _` | __| ",
      "| (_| \\__ \\ (__| | |_____| (__| | | | (_| | |_ ", " \\__,_|___/\\___|_|_|      \\___|_| |_|\\__,_|\\__| "};
  if (compact) {
    const char *title = "ascii-chat";
    int len = (int)strlen(title);
    centered_line(buf, title, len < cols ? len : cols, cols, frame, colors);
    return;
  }
  // Pad every row to the same width so the ASCII glyphs stay aligned.
  int width = 0;
  for (int i = 0; i < 4; ++i) {
    int len = (int)strlen(ascii_logo[i]);
    if (len > width)
      width = len;
  }
  for (int i = 0; i < 4; ++i) {
    char line[TUI_INVITATION_LINE_BUFFER_SIZE];
    snprintf(line, sizeof(line), "%-*s", width, ascii_logo[i]);
    centered_line(buf, line, width < cols ? width : cols, cols, frame, colors);
  }
}

References colors, TUI_INVITATION_LINE_BUFFER_SIZE, and width.

Referenced by invitation_render(), ui_media_panel_render(), ui_session_render(), and ui_session_splash_render().