aboutsummaryrefslogtreecommitdiff
path: root/v_windows/v/examples/ttf_font/example_ttf.v
diff options
context:
space:
mode:
authorIndrajith K L2022-12-03 17:00:20 +0530
committerIndrajith K L2022-12-03 17:00:20 +0530
commitf5c4671bfbad96bf346bd7e9a21fc4317b4959df (patch)
tree2764fc62da58f2ba8da7ed341643fc359873142f /v_windows/v/examples/ttf_font/example_ttf.v
downloadcli-tools-windows-f5c4671bfbad96bf346bd7e9a21fc4317b4959df.tar.gz
cli-tools-windows-f5c4671bfbad96bf346bd7e9a21fc4317b4959df.tar.bz2
cli-tools-windows-f5c4671bfbad96bf346bd7e9a21fc4317b4959df.zip
Adds most of the toolsHEADmaster
Diffstat (limited to 'v_windows/v/examples/ttf_font/example_ttf.v')
-rw-r--r--v_windows/v/examples/ttf_font/example_ttf.v171
1 files changed, 171 insertions, 0 deletions
diff --git a/v_windows/v/examples/ttf_font/example_ttf.v b/v_windows/v/examples/ttf_font/example_ttf.v
new file mode 100644
index 0000000..02e43cd
--- /dev/null
+++ b/v_windows/v/examples/ttf_font/example_ttf.v
@@ -0,0 +1,171 @@
+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()
+}