void ReadlineWindow::CompletionDisplay ( char **  matches, int  num, int  max  )

protectedvirtual

Callback function to display the finally compiled list of completion options. Adapts fPromtY for the number of scrolled lines.

Parameters

matches	A list with the matches found. The first element contains what was completed. The length of the list is therefore num+1.
num	Number of possible completion entries in the list.
max	maximum length of the entries

Todo:

Maybe we can use rl_outstream here if we find a way to redirect the stream to us instead of a file.

Reimplemented from Readline.

Definition at line 277 of file ReadlineWindow.cc.

References fPromptY, fWindow, and i.

{
    // Increase maximum size by two to get gaps in between the columns
    max += 2; // Two whitespaces in between the output

    // Get size of window
    int lines, cols;
    getmaxyx(fWindow, lines, cols);

    // Allow an empty space at the end of the lines for a '\n'
    cols--;

    // calculate the final number columns
    const int ncols = cols / max;

    // Compile a proper format string
    ostringstream fmt;
    fmt << "%-" << max << 's';

    // loop over all entries and display them
    int l=0;
    for (int i=0; i<num; i++)
    {
        // Check if we have to put a line-break
        if (i%ncols==0)
        {
            if ((max+0)*ncols < cols)
                wprintw(fWindow, "\n");
            l++;
        }

        // Display an entry
        wprintw(fWindow, fmt.str().c_str(), matches[i+1]);
    }

    // Display an empty line after the list
    if ((num-1)%ncols>0)
        wprintw(fWindow, "\n");
    wprintw(fWindow, "\n");

    // Get new cursor position
    int x, y;
    getyx(fWindow, y, x);

    // Clear everything behind the list
    wclrtobot(fWindow);

    // Adapt fPromptY for the number of scrolled lines if any.
    if (y==lines-1)
        fPromptY = lines-1;

    // Display anything
    wrefresh(fWindow);
}