neo-blessed/test/widget-pos.js

121 lines
2.5 KiB
JavaScript

var blessed = require('../')
, assert = require('assert')
, screen;
screen = blessed.screen({
dump: __dirname + '/logs/pos.log'
});
// My terminal size at the time of writing these tests:
screen.program.cols = 154;
screen.program.rows = 19;
screen.alloc();
var main = blessed.box({
//width: '75%',
//height: '75%',
width: 115,
height: 14,
bg: 'yellow',
top: 2,
left: 2,
content: 'Welcome to my program'
});
screen.append(main);
var inner = blessed.box({
width: '50%',
height: '50%',
//width: 57,
//height: 7,
bg: 'blue',
top: 2,
left: 2,
content: 'Hello'
});
main.append(inner);
inner.setContent(inner.content + '\n' + JSON.stringify({
left: inner.left,
right: inner.right,
top: inner.top,
bottom: inner.bottom,
width: inner.width,
height: inner.height,
rleft: inner.rleft,
rright: inner.rright,
rtop: inner.rtop,
rbottom: inner.rbottom
}));
assert.equal(inner.width, 57);
assert.equal(inner.height, 7);
assert.equal(inner.left, 4);
assert.equal(inner.right, 93);
assert.equal(inner.top, 4);
assert.equal(inner.bottom, 8);
assert.equal(inner.rleft, 2);
assert.equal(inner.rright, 56);
assert.equal(inner.rtop, 2);
assert.equal(inner.rbottom, 5);
// Change left to half of the parent width.
inner.rleft = '50%';
assert.equal(inner.left, 59);
// Change left to half of the screen width.
inner.left = '50%';
assert.equal(inner.left, screen.width / 2 | 0);
// Test implied height/width.
reset(inner, {
top: 5,
bottom: 5,
left: 5,
right: 5
});
assert.equal(inner.width, 105);
assert.equal(inner.height, 4);
// Demonstrate the difference between `left: 5`, and `.left = 5` (relative vs. absolute):
inner.top = inner.bottom = inner.left = inner.right = 5;
assert.equal(inner.width, 144);
assert.equal(inner.height, 9);
// Test center keyword
reset(inner, {
width: '50%',
height: '50%',
left: 'center',
top: 'center'
});
assert.equal(inner.rleft, 29);
assert.equal(inner.rtop, 4);
// TODO: Start storing position.left, etc. as absolute?
screen.on('keypress', function(ch, key) {
if (key.name === 'escape' || key.name === 'q') {
return process.exit(0);
}
});
screen.render();
function reset(el, pos) {
pos = pos || {};
el.position.width = el.options.width = pos.width;
el.position.height = el.options.height = pos.height;
el.position.left = el.options.left = pos.left;
el.position.right = el.options.right = pos.right;
el.position.top = el.options.top = pos.top;
el.position.bottom = el.options.bottom = pos.bottom;
}