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examples: use os.resource_abs_path, so `v run examples/ttf_font/example_ttf.v` works

pull/8016/head
Delyan Angelov 2021-01-10 20:36:50 +02:00
parent c067cc0357
commit 692a718428
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GPG Key ID: 66886C0F12D595ED
2 changed files with 46 additions and 76 deletions
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112
examples/ttf_font/example_ttf.v
View File

@ -2,83 +2,68 @@ import gg
import gx
import sokol.sapp
import sokol.sgl
import x.ttf
import os
//import math
// import math
const (
win_width = 600
win_height = 700
bg_color = gx.white
font_paths = [
"Imprima-Regular.ttf"
"Graduate-Regular.ttf"
os.resource_abs_path('Imprima-Regular.ttf'),
os.resource_abs_path('Graduate-Regular.ttf'),
]
)
/******************************************************************************
*
* UI
*
*****************************************************************************/
// UI
struct App_data {
pub mut:
gg &gg.Context
sg_img C.sg_image
init_flag bool
frame_c int
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
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"
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 := &app.ttf_render[0]
if app.frame_c % 2 == 0 {
txt1.destroy_texture()
txt1.create_text(cframe_txt ,43)
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.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 :(
@ -88,50 +73,42 @@ But Vwill prevail for sure, V is the way!!
"
txt1 = &app.ttf_render[1]
if app.frame_c % 2 == 0 {
txt1.bmp.justify = false
if (app.frame_c>>6) % 2 == 0 {
//txt1.align = .left
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 {
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)
// 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)
// 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 = &app.ttf_render[2]
txt1.destroy_texture()
txt1.create_text("$app.mouse_x,$app.mouse_y",25)
txt1.create_text('$app.mouse_x,$app.mouse_y', 25)
txt1.create_texture()
r := app.mouse_x % 255
g := app.mouse_y % 255
color := u32(r << 24) | u32(g << 16) | 0xFF
txt1.bmp.color = color
txt1.draw_text_bmp(app.gg, app.mouse_x , app.mouse_y)
txt1.draw_text_bmp(app.gg, app.mouse_x, app.mouse_y)
}
app.frame_c ++
app.frame_c++
}
app.gg.end()
}
fn my_event_manager(mut ev sapp.Event, mut app &App_data) {
fn my_event_manager(mut ev sapp.Event, mut app App_data) {
if ev.typ == .mouse_move {
app.mouse_x = int(ev.mouse_x)
app.mouse_y = int(ev.mouse_y)
@ -139,13 +116,11 @@ fn my_event_manager(mut ev sapp.Event, mut app &App_data) {
}
[console]
fn main(){
fn main() {
mut app := &App_data{
gg: 0
}
app.gg = gg.new_context({
app.gg = gg.new_context(
width: win_width
height: win_height
use_ortho: true // This is needed for 2D drawing
@ -156,47 +131,42 @@ fn main(){
frame_fn: draw_frame
event_fn: my_event_manager
init_fn: my_init
})
)
// load TTF fonts
for font_path in font_paths {
mut tf := ttf.TTF_File{}
tf.buf = os.read_bytes(font_path) or { panic(err) }
println("TrueTypeFont file [$font_path] len: ${tf.buf.len}")
println('TrueTypeFont file [$font_path] len: $tf.buf.len')
tf.init()
println("Unit per EM: $tf.units_per_em")
println('Unit per EM: $tf.units_per_em')
app.tf << tf
}
// TTF render 0 Frame counter
app.ttf_render << &ttf.TTF_render_Sokol {
app.ttf_render << &ttf.TTF_render_Sokol{
bmp: &ttf.BitMap{
tf: &(app.tf[0])
buf: malloc(32000000)
buf_size: (32000000)
color : 0xFF0000FF
//style: .raw
//use_font_metrics: true
color: 0xFF0000FF
// style: .raw
// use_font_metrics: true
}
}
// TTF render 1 Text Block
app.ttf_render << &ttf.TTF_render_Sokol {
app.ttf_render << &ttf.TTF_render_Sokol{
bmp: &ttf.BitMap{
tf: &(app.tf[1])
//color : 0xFF0000_10
//style: .raw
//use_font_metrics: true
// color : 0xFF0000_10
// style: .raw
// use_font_metrics: true
}
}
// TTF mouse position render
app.ttf_render << &ttf.TTF_render_Sokol {
app.ttf_render << &ttf.TTF_render_Sokol{
bmp: &ttf.BitMap{
tf: &(app.tf[0])
}
}
/* setup sokol_gfx */
// setup sokol_gfx
app.gg.run()
}

10
vlib/x/ttf/ttf_test.v
View File

@ -7,6 +7,7 @@
* that can be found in the LICENSE file.
*
* Note:
* use `v -d create_data vlib/x/ttf/ttf_test.v` to generate binary data for this test file
*
* TODO:
* - manage text directions R to L
@ -16,8 +17,7 @@ import os
import strings
const (
font_path = "Qarmic_sans_Abridged.ttf"
create_data = false // use true to generate binary data for this test file
font_path = 'Qarmic_sans_Abridged.ttf'
)
fn save_raw_data_as_array(buf_bin []byte, file_name string) {
@ -30,11 +30,11 @@ fn save_raw_data_as_array(buf_bin []byte, file_name string) {
fn test_main() {
mut tf := ttf.TTF_File{}
if create_data == true {
$if create_data ? {
tf.buf = os.read_bytes(font_path) or { panic(err) }
println("TrueTypeFont file [$font_path] len: ${tf.buf.len}")
save_raw_data_as_array(tf.buf, "test_ttf_Font_arr.bin")
} else {
} $else {
tf.buf = font_bytes
}
tf.init()
@ -65,7 +65,7 @@ fn test_main() {
bmp.draw_text("Test Text")
mut test_buf := get_raw_data(test_data)
if create_data == true {
$if create_data ? {
bmp.save_as_ppm("test_ttf.ppm")
bmp.save_raw_data("test_ttf.bin")
test_buf = os.read_bytes("test_ttf.bin") or { panic(err) }