Created
November 27, 2020 17:59
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norns boxed text with alignment & placement options
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| local function txtbox(txt, x, y, x2, y2, xalign, yalign, font, size, lvl, border, fill, padding, font_headroom, font_leftroom) | |
| font_headroom = font_headroom or 3/8 | |
| font_leftroom = font_leftroom or 1/16 | |
| screen.font_face(font) | |
| screen.font_size(size) | |
| local fixed = (x2 ~= nil) and (y2 ~= nil) | |
| local width = screen.text_extents(txt) | |
| local height = size * (1 - font_headroom) | |
| local w, h, bx, by, tx, ty, tmode | |
| if fixed then | |
| w = x2 - x - 1 | |
| h = y2 - y - 1 | |
| bx = x | |
| by = y | |
| tx = bx + w/2 - 1 | |
| ty = by + (h + height)/2 - 1 | |
| tmode = 'center' | |
| else | |
| local px = (type(padding) == 'table' and padding[1] or padding) * 2 | |
| local py = (type(padding) == 'table' and padding[2] or padding) * 2 | |
| w = width + px - 1 | |
| h = height + py - 1 | |
| local bxalign = (xalign == 'center') and (((width + px) / 2) + 1) or (xalign == 'right') and (width + px) or 0 | |
| local byalign = (yalign == 'center') and h/2 - 1 or (yalign == 'bottom') and h or 0 | |
| local txalign = (xalign == 'center') and 0 or (xalign == 'right') and -1 or 1 | |
| local tyalign = (yalign == 'center') and (height/2) or (yalign == 'bottom') and - (py/2) or height + (py/2) - 1 | |
| bx = x - bxalign | |
| by = y - byalign | |
| tx = x - 1 + ((px / 2) * txalign) - (font == 1 and (size * font_leftroom) or 0) | |
| ty = y + tyalign | |
| tmode = xalign | |
| end | |
| if fill > 0 then | |
| screen.level(fill) | |
| screen.rect(bx - 1, by - 1, w + 1, h + 1) | |
| screen.fill() | |
| end | |
| if border > 0 then | |
| screen.level(border) | |
| screen.rect(bx, by, w, h) | |
| screen.stroke() | |
| end | |
| screen.level(lvl) | |
| screen.move(tx, ty) | |
| if tmode == 'right' then | |
| screen.text_right(txt) | |
| elseif tmode == 'center' then | |
| screen.text_center(txt) | |
| else | |
| screen.text(txt) | |
| end | |
| end | |
| function init() | |
| screen.aa(0) | |
| redraw() | |
| end | |
| function redraw() | |
| screen.clear() | |
| --top left aligned, solid border | |
| txtbox('left', 4, 4, nil, nil, 'left', 'top', 1, 8, 15, 15, 0, 3) | |
| --center aligned, solid fill | |
| txtbox('in the center', 64, 32, nil, nil, 'center', 'center', 1, 8, 0, 0, 15, 3) | |
| --fixed width | |
| txtbox('fix', 100, 50, 124, 60, '', '', 1, 8, 12, 15, 1) | |
| screen.update() | |
| end |
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a lil pic !