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scanner/ncurses/ncurses.php
Correl Roush d165b90574 Prevented window write overflow, added Save functionality to the displayed action key list Mantis: 2691 
git-svn-id: file:///srv/svn/scanner/trunk@9 a0501263-5b7a-4423-a8ba-1edf086583e7
2008-02-28 16:57:39 +00:00

333 lines
9.7 KiB
PHP
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<?php
class NcApp {
var $screen;
function __construct( $echo = false, $cursor = false ) {
ncurses_init();
$echo ? ncurses_echo() : ncurses_noecho();
ncurses_curs_set( (bool)$cursor );
$this->screen = ncurses_newwin( 0, 0, 0, 0 );
ncurses_refresh();
$this->run();
}
function __destruct() {
ncurses_clear();
ncurses_refresh();
ncurses_end();
}
function run() {
}
}
class NcWindow {
var $frame;
var $window;
var $panels = array();
var $children = array();
var $parent = false;
var $x;
var $y;
var $width;
var $height;
var $title;
function __construct( &$parent, $height, $width, $y, $x, $framed = true ) {
if( $parent instanceof NcWindow ) {
$this->parent = $parent;
//TODO: Find out why this drives php nuts at script termination
$this->parent->add_child( $this );
$x += $parent->x;
$y += $parent->y;
$width += $width <= 0 ? $parent->width : 0;
$height += $height <= 0 ? $parent->height : 0;
}
if( $framed ) {
$this->frame = ncurses_newwin( $height, $width, $y, $x );
ncurses_getmaxyx( $this->frame, $max_y, $max_x );
if( $max_y >= 2 && $max_x >= 2 ) {
$this->window = ncurses_newwin( $max_y - 2, $max_x - 2, $y + 1, $x + 1 );
ncurses_wborder( $this->frame, 0,0, 0,0, 0,0, 0,0 );
ncurses_wrefresh( $this->frame );
$this->panels[] = ncurses_new_panel( $this->frame );
} else {
$this->window = $this->frame;
$this->frame = false;
}
} else {
$this->frame = false;
$this->window = ncurses_newwin( $height, $width, $y, $x );
ncurses_getmaxyx( $this->window, $max_y, $max_x );
}
$this->width = $this->frame ? $max_x - 2 : $max_x;
$this->height = $this->frame ? $max_y - 2 : $max_y;
$this->x = $this->frame ? $x + 1 : $x;
$this->y = $this->frame ? $y + 1 : $y;
ncurses_wrefresh( $this->window );
$this->panels[] = ncurses_new_panel( $this->window );
ncurses_update_panels();
}
function __destruct() {
foreach( $this->panels as $id => $panel ) {
ncurses_del_panel( $this->panels[$id] );
}
ncurses_delwin( $this->window );
if( $this->frame !== false ) {
ncurses_delwin( $this->frame );
}
}
function title( $value = false ) {
if( $value === false ) {
return $this->title;
} elseif( $this->frame !== false ) {
$this->title = $value;
ncurses_wborder( $this->frame, 0,0, 0,0, 0,0, 0,0 );
ncurses_mvwaddstr( $this->frame, 0, 1, $this->title );
ncurses_update_panels();
ncurses_doupdate();
}
}
function attribute_on( $attribute ) {
ncurses_wattron( $this->window, $attribute );
}
function attribute_off( $attribute ) {
ncurses_wattroff( $this->window, $attribute );
}
function write( $y, $x, $text, $update = true ) {
$y = $y < 0 ? $this->height + $y : $y;
$x = $x < 0 ? $this->width + $x : $x;
$lines = preg_split( '/\r?(\n|\r)/', $text );
foreach( $lines as $id => $line ) {
$line = substr( $line, 0, $this->width - $x );
ncurses_mvwaddstr( $this->window, $y + $id, $x, $line );
}
if( $update ) {
ncurses_update_panels();
ncurses_doupdate();
}
}
function write_centered( $y, $text, $update = true ) {
$this->write(
$y,
floor( $this->width / 2 ) - floor( strlen( $text ) / 2 ),
$text,
$update
);
}
function write_fixed( $y, $x, $text, $width = 0, $update = true ) {
$width = $width > 0 ? $width : $this->width - $x;
$this->write( $y, $x, $this->_string_fixed( $text, $width ), $update );
}
function _string_fixed( $text, $width = 0 ) {
$width = $width < 0 ? 0 : $width;
$text = substr( $text, 0, $width );
$text .= str_repeat( ' ', $width - strlen( $text ) );
return $text;
}
function add_child( $child ) {
$this->children[] = $child;
}
function hide( $update = true ) {
foreach( $this->panels as $panel ) {
ncurses_hide_panel( $panel );
}
foreach( $this->children as $child ) {
$child->hide( false );
}
if( $update ) {
ncurses_update_panels();
ncurses_doupdate();
}
}
function show( $update = true ) {
foreach( $this->panels as $panel ) {
ncurses_show_panel( $panel );
}
foreach( $this->children as $child ) {
$child->show( false );
}
ncurses_update_panels();
ncurses_doupdate();
}
function erase() {
ncurses_werase( $this->window );
ncurses_wrefresh( $this->window );
ncurses_doupdate();
}
function get_char( $flush = true ) {
if( $flush ) {
ncurses_flushinp();
}
return ncurses_getch();
//return ncurses_wgetch( $this->window );
}
}
class NcProgressBar extends NcWindow {
var $max;
var $value;
var $show_pct;
function __construct( &$parent, $width, $y, $x, $max = 100, $show_pct = true ) {
parent::__construct( $parent, 1, $width, $y, $x, false );
$this->max = $max;
$this->show_pct = $show_pct;
$this->pos( 0 );
}
function pos( $value = false ) {
if( $value === false ) {
return $this->value;
} else {
$value = $value > $this->max ? $this->max : $value;
$this->value = $value;
$this->write( 0, 0, '[', false );
$width = $this->width - ( $this->show_pct ? 7 : 2 );
$width = $width >= 0 ? $width : 0;
$complete = floor( $width * $value / $this->max );
$this->write( 0, 1, str_repeat( '#', $complete ), false );
$this->write( 0, 1 + $complete, str_repeat( ' ', $width - $complete ), false );
$this->write( 0, $width + 1, ']', false );
if( $this->show_pct ) {
$this->write( 0, $width + 3, sprintf( '%3d%%', floor( $value / $this->max * 100 ) ), false );
}
ncurses_update_panels();
ncurses_doupdate();
}
}
function max( $value = false ) {
if( $value === false ) {
return $this->max;
} else {
$this->max = $value > 0 ? $value : $this->max;
$this->pos( $this->value );
}
}
}
class NcTextInput extends NcWindow {
var $value = '';
var $active = false;
var $filter = false;
function __construct( &$parent, $width, $y, $x, $value = '', $filter = false ) {
parent::__construct( $parent, 1, $width, $y, $x, false );
$this->value = $value;
$this->filter = $filter !== false && @preg_match( $filter, '' ) !== false ? $filter : false;
$this->update();
}
function update() {
$this->attribute_on( NCURSES_A_UNDERLINE );
if( $this->active ) {
$this->attribute_on( NCURSES_A_REVERSE );
}
$this->write_fixed( 0, 0, substr( $this->value, - $this->width ) );
$this->attribute_off( NCURSES_A_UNDERLINE );
$this->attribute_off( NCURSES_A_REVERSE );
}
function value( $value = false ) {
if( $value === false ) {
return $this->value;
} else {
$this->value = $value;
}
}
function get() {
$this->active = true;
$this->update();
while( $this->active ) {
$key = $this->get_char();
switch( $key ) {
case NCURSES_KEY_BACKSPACE:
$this->value = substr( $this->value, 0, strlen( $this->value ) - 1 );
break;
case 13:
$this->active = false;
break;
default:
if( in_array( $key, range( 32, 126 ) ) ) {
$this->value .= chr( $key );
}
}
$this->update();
}
$this->update();
return $this->filter !== false && @preg_match( $this->filter, $this->value ) < 1 ? false : $this->value;
}
}
class NcTableView extends NcWindow {
var $columns;
var $records;
var $selected;
function __construct( &$parent, $height, $width, $y, $x, $params = array() ) {
parent::__construct( $parent, $height, $width, $y, $x );
$params = !is_array( $params ) ? array() : $params;
$this->columns = isset( $params['columns'] ) && is_array( $params['columns'] ) ? $params['columns'] : array();
$this->records = isset( $params['records'] ) && is_array( $params['records'] ) ? array_values( $params['records'] ) : array();
}
function update( $selected = 0 ) {
$selected = $selected >= 0 ? $selected : 0;
$selected = $selected < count( $this->records ) ? $selected : count( $this->records ) - 1;
$this->selected = $selected;
$cols = isset( $this->columns ) && is_array( $this->columns ) ? $this->columns : array();
if( count( $cols ) == 0 ) {
// If there's no columns defined, try and grab 'em from the keys from the first record
$record = $this->records[0];
$record = is_array( $record ) ? $record : array( $record );
foreach( array_keys( $record ) as $col ) {
$cols[$col] = $col;
}
}
$column_ids = array_keys( $cols );
$column_widths = $rows = array();
foreach( $cols as $id => $column ) {
$column_widths[$id] = strlen( $column );
}
foreach( $this->records as $id => $record ) {
$record = is_array( $record ) ? $record : array( $record );
$fields = array();
foreach( $column_ids as $col ) {
$field = isset( $record[$col] ) ? $record[$col] : '';
$field = is_scalar( $field ) ? $field : gettype( $field );
$fields[$col] = $field;
$column_widths[$col] = $column_widths[$col] < strlen( $field ) ? strlen( $field ) : $column_widths[$col];
}
$rows[] = $fields;
}
foreach( $cols as $id => $col ) {
$cols[$id] = $col . str_repeat( ' ', $column_widths[$id] - strlen( $col ) );
}
$this->attribute_on( NCURSES_A_UNDERLINE );
$this->attribute_on( NCURSES_A_BOLD );
$this->write_fixed( 0, 0, implode( ' | ', $cols ) );
$this->attribute_off( NCURSES_A_UNDERLINE );
$this->attribute_off( NCURSES_A_BOLD );
$max_items = ( $this->height - 2 );
$offset = ( $selected > $max_items ) ? $selected - $max_items : 0;
foreach( $rows as $id => $row ) {
if( $id < $offset ) {
continue;
} elseif( $id - $offset > $max_items ) {
// We've reached the maximum row height for this window
break;
}
foreach( $row as $col => $field ) {
$row[$col] = $field . str_repeat( ' ', $column_widths[$col] - strlen( $field ) );
}
if( $selected == $id ) {
$this->attribute_on( NCURSES_A_REVERSE );
}
$this->write_fixed( $id - $offset + 1, 0, implode( ' | ', $row ) );
$this->attribute_off( NCURSES_A_REVERSE );
}
}
function load( $records ) {
if( !is_array( $records ) ) {
return false;
}
$this->records = array_values( $records );
$this->update();
return true;
}
}
?>
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