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81 lines
2.0 KiB
81 lines
2.0 KiB
<?php
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namespace Sparklib;
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class NcursesProgressDialog {
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private $limit;
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// Middle window resource.
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private $window;
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// Position of the progress bar.
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private $bar_x = 1;
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/**
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* @param int $limit - the number of tasks to be completed, num db rows or whatever
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* @param string $title - the title of the window
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*/
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public function __construct ($limit, $title='New Task')
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{
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// Fallback for if libncurses is missing. Just do nothing.
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if (! function_exists('ncurses_init')) return;
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// How many records will we be processing?
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$this->limit = $limit;
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ncurses_init();
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// Border the screen.
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ncurses_border(0,0, 0,0, 0,0, 0,0);
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// Get the size of the screen.
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ncurses_getmaxyx(STDSCR, $lines, $columns);
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// Make a window in the middle that's half the width of the screen.
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$width = $columns / 2;
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$this->window = ncurses_newwin(15, $width, $lines/4, $width/2);
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ncurses_wborder($this->window, 0,0, 0,0, 0,0, 0,0);
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// Title it.
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ncurses_mvwaddstr($this->window, 0, 5, $title);
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// Show progress bar boundaries.
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ncurses_mvwaddstr($this->window, 12, 1, '|');
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ncurses_mvwaddstr($this->window, 12, $width-2, '|');
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// Figure out what one character is worth based on the above.
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$this->unit = round($limit / ($width - 3));
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ncurses_refresh();
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}
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/**
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* @param int $place - number of the current task
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*/
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public function update ($place)
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{
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if (! function_exists('ncurses_init')) return;
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ncurses_mvwaddstr($this->window, 5, 5, 'Processing record '.$place.' of '.$this->limit);
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$percent = (round($place / $this->limit, 2) * 100) . '%';
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ncurses_mvwaddstr($this->window, 10, 5, $percent);
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if ($place % $this->unit == 0) {
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$this->bar_x += 1;
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ncurses_mvwaddstr($this->window, 12, $this->bar_x, '=>');
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}
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ncurses_wrefresh($this->window);
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if ($place >= $this->limit) ncurses_end();
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}
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public function __destruct ()
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{
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if (! ncurses_isendwin()) {
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ncurses_end();
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}
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}
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}
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