76 lines
1.5 KiB
V
76 lines
1.5 KiB
V
module ft
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import sokol.sfons
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import gx
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import os
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const (
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default_font_size = 24
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)
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// TODO remove globals
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/*
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__global g_fons &C.FONScontext
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__global g_font_normal int
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__global g_font_path string
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*/
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pub struct FT {
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pub:
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fons &C.FONScontext
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font_normal int
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}
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pub struct Config {
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font_path string
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}
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pub fn new(c Config) ?&FT{
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if c.font_path == '' || !os.exists(c.font_path) {
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println('failed to load font "$c.font_path"')
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return none
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}
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bytes := os.read_bytes(c.font_path) or {
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println('failed to load font "$c.font_path"')
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return none
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}
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fons := sfons.create(512, 512, 1)
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return &FT{
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fons : fons
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font_normal: C.fonsAddFontMem(fons, 'sans', bytes.data, bytes.len, false)
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}
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}
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pub fn (ft &FT) draw_text(x, y int, text string, cfg gx.TextCfg) {
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ft.fons.set_font(ft.font_normal)
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ft.fons.set_size(2*f32(cfg.size)) // TODO: is this 2* needed?
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C.fonsSetAlign(ft.fons, C.FONS_ALIGN_LEFT | C.FONS_ALIGN_TOP)
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color := C.sfons_rgba(cfg.color.r, cfg.color.g, cfg.color.b, 255)
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C.fonsSetColor(ft.fons, color)
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ascender := f32(0.0)
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descender := f32(0.0)
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lh := f32(0.0)
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ft.fons.vert_metrics(&ascender, &descender, &lh)
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C.fonsDrawText(ft.fons, x, y, text.str, 0) // TODO: check offsets/alignment
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}
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pub fn (ft &FT) draw_text_def(x, y int, text string) {
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cfg := gx.TextCfg {
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color: gx.black
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size: default_font_size
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align: gx.align_left
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}
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ft.draw_text(x, y, text, cfg)
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}
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pub fn (mut gg FT) init_font() {
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// TODO
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////gg.fons =g_fons
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//gg.font_normal=g_font_normal
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}
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pub fn (ft &FT) flush(){
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sfons.flush(ft.fons)
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}
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