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import gg
import gx
import sokol.sapp
import sokol.sgl
import x.ttf
import os
// import math
const (
win_width = 600
win_height = 700
bg_color = gx.white
font_paths = [
os.resource_abs_path('Imprima-Regular.ttf'),
os.resource_abs_path('Graduate-Regular.ttf'),
]
)
// UI
struct App_data {
pub mut:
gg &gg.Context
sg_img C.sg_image
init_flag bool
frame_c int
tf []ttf.TTF_File
ttf_render []ttf.TTF_render_Sokol
text_ready_flag bool
mouse_x int = -1
mouse_y int = -1
}
fn my_init(mut app App_data) {
app.init_flag = true
}
fn draw_frame(mut app App_data) {
cframe_txt := 'Current Frame: $app.frame_c'
app.gg.begin()
sgl.defaults()
sgl.matrix_mode_projection()
sgl.ortho(0.0, f32(sapp.width()), f32(sapp.height()), 0.0, -1.0, 1.0)
sgl.c4b(0, 0, 0, 255) // black
// draw a line as background
sgl.begin_line_strip()
sgl.v2f(10, 10)
sgl.v2f(100, 100)
sgl.end()
// draw text only if the app is already initialized
if app.init_flag == true {
sgl.begin_line_strip()
sgl.v2f(410, 400)
sgl.v2f(510, 400)
sgl.end()
// update the text
mut txt1 := unsafe { &app.ttf_render[0] }
if app.frame_c % 2 == 0 {
txt1.destroy_texture()
txt1.create_text(cframe_txt, 43)
txt1.create_texture()
}
// ----- decomment if you want text rotation ----
// txt1.bmp.angle = 3.141592 / 180 * f32(app.frame_c % 360)
// txt1.draw_text_bmp(app.gg, 300, 350)
// txt1.bmp.angle = 0
txt1.draw_text_bmp(app.gg, 30, 60)
// block test
block_txt := "Today it is a good day!
Tommorow I'm not so sure :(
Frame: $app.frame_c
But Vwill prevail for sure, V is the way!!
òàèì@ò!£$%&
"
txt1 = unsafe { &app.ttf_render[1] }
if app.frame_c % 2 == 0 {
txt1.bmp.justify = false
if (app.frame_c >> 6) % 2 == 0 {
// txt1.align = .left
txt1.bmp.justify = true
}
txt1.bmp.align = .left
if (app.frame_c >> 6) % 3 == 0 {
txt1.bmp.align = .right
}
txt1.destroy_texture()
txt1.create_text_block(block_txt, 500, 500, 32)
txt1.create_texture()
}
// decomment if want block color change
// txt1.bmp.color = ttf.color_multiply(0xFF00FFFF, f32(app.frame_c % 255)/255.0)
// decomment if want block rotation wanted
// txt1.bmp.angle = 3.141592/180 * f32(app.frame_c % 45)
txt1.draw_text_bmp(app.gg, 30 + (app.frame_c >> 1) & 0xFF, 200)
// draw mouse position
if app.mouse_x >= 0 {
txt1 = unsafe { &app.ttf_render[2] }
txt1.destroy_texture()
txt1.create_text('$app.mouse_x,$app.mouse_y', 25)
txt1.create_texture()
r := app.mouse_x % 255
g := app.mouse_y % 255
color := u32(r << 24) | u32(g << 16) | 0xFF
txt1.bmp.color = color
txt1.draw_text_bmp(app.gg, app.mouse_x, app.mouse_y)
}
app.frame_c++
}
app.gg.end()
}
fn my_event_manager(mut ev gg.Event, mut app App_data) {
if ev.typ == .mouse_move {
app.mouse_x = int(ev.mouse_x)
app.mouse_y = int(ev.mouse_y)
}
}
[console]
fn main() {
mut app := &App_data{
gg: 0
}
app.gg = gg.new_context(
width: win_width
height: win_height
create_window: true
window_title: 'Test TTF module'
user_data: app
bg_color: bg_color
frame_fn: draw_frame
event_fn: my_event_manager
init_fn: my_init
)
// load TTF fonts
for font_path in font_paths {
mut tf := ttf.TTF_File{}
tf.buf = os.read_bytes(font_path) or { panic(err) }
println('TrueTypeFont file [$font_path] len: $tf.buf.len')
tf.init()
println('Unit per EM: $tf.units_per_em')
app.tf << tf
}
// TTF render 0 Frame counter
app.ttf_render << &ttf.TTF_render_Sokol{
bmp: &ttf.BitMap{
tf: &(app.tf[0])
buf: unsafe { malloc_noscan(32000000) }
buf_size: (32000000)
color: 0xFF0000FF
// style: .raw
// use_font_metrics: true
}
}
// TTF render 1 Text Block
app.ttf_render << &ttf.TTF_render_Sokol{
bmp: &ttf.BitMap{
tf: &(app.tf[1])
// color : 0xFF0000_10
// style: .raw
// use_font_metrics: true
}
}
// TTF mouse position render
app.ttf_render << &ttf.TTF_render_Sokol{
bmp: &ttf.BitMap{
tf: &(app.tf[0])
}
}
// setup sokol_gfx
app.gg.run()
}
|
