x.ttf: vfmt the examples in the README.md

vlib/x/ttf/README.md

@@ -22,10 +22,10 @@ At this point the font "arial" is loaded and parsed and if it is a valid TTF fon
 ready for the rendering.
 We can get some quick info on the font as string using the `get_info_string` function:
 
-```v ignore
+```v oksyntax
 println(ttf_font.get_info_string())
 ```
-that give an outpul like this:
+produces an output like this:
 ```
 ----- Font Info -----
 font_family     : Arial
@@ -56,10 +56,11 @@ Let's start with a simple snippet of code:
 ```v oksyntax
 import os
 import x.ttf
+
 [console]
 fn main() {
 	mut ttf_font := ttf.TTF_File{}
-	ttf_font.buf = os.read_bytes("arial.ttf") or { panic(err) }
+	ttf_font.buf = os.read_bytes('arial.ttf') or { panic(err) }
 	ttf_font.init()
 	// print font info
 	println(ttf_font.get_info_string())
@@ -77,7 +78,7 @@ import x.ttf
 [console]
 fn main() {
 	mut ttf_font := ttf.TTF_File{}
-	ttf_font.buf = os.read_bytes("arial.ttf") or { panic(err) }
+	ttf_font.buf = os.read_bytes('arial.ttf') or { panic(err) }
 	ttf_font.init()
 	// print font info
 	println(ttf_font.get_info_string())
@@ -110,8 +111,8 @@ fn main(){
 	bmp.init_filler()
 	bmp.clear()
 	bmp.set_pos(10, y_base)
-	bmp.draw_text("Test Text!")
-	bmp.save_as_ppm("test.ppm")
+	bmp.draw_text('Test Text!')
+	bmp.save_as_ppm('test.ppm')
 }
 ```
 This is the low level render that draw ther text on a bitmap and save the bitmap on a disk as
@@ -141,7 +142,7 @@ import x.ttf
 [console]
 fn main() {
 	mut ttf_font := ttf.TTF_File{}
-	ttf_font.buf = os.read_bytes("arial.ttf") or { panic(err) }
+	ttf_font.buf = os.read_bytes('arial.ttf') or { panic(err) }
 	ttf_font.init()
 	// print font info
 	println(ttf_font.get_info_string())
@@ -180,8 +181,8 @@ But Vwill prevail for sure, V is the way!!
 	bmp.clear()
 	bmp.justify = true
 	bmp.align = .left
-	bmp.draw_text_block(text, {x: 0, y:0, w: bmp_width-20, h: bmp_heigth})
-	bmp.save_as_ppm("test.ppm")
+	bmp.draw_text_block(text, x: 0, y: 0, w: bmp_width - 20, h: bmp_heigth)
+	bmp.save_as_ppm('test.ppm')
 }
 ```
 This is the low level render that draw text block on the bitmap.
@@ -196,11 +197,12 @@ struct Text_block {
 }
 ```
 and use the following bitmap fields:
-```v oksyntax
+```v ignore
 	style              Style      = .filled // default syle
 	align              Text_align = .left   // default text align
 	justify            bool				    // justify text flag, default deactivated
-	justify_fill_ratio f32        = 0.5     // justify fill ratio, if the ratio of the filled row is >= of this then justify the text
+	justify_fill_ratio f32        = 0.5     // justify fill ratio, if the ratio of the filled
+	                                        // row is >= of this then justify the text
 ```
 
 It is possible to modify these parameters to obtain the desired effect on the text rendering.
@@ -216,7 +218,6 @@ import gg
 import gx
 import sokol.sapp
 import sokol.sgl
-
 import x.ttf
 import os
 
@@ -225,7 +226,7 @@ const (
 	win_height = 700
 	bg_color   = gx.white
 	font_paths = [
-		"arial.ttf"
+		'arial.ttf',
 	]
 )
 
@@ -244,8 +245,8 @@ 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()
 
@@ -272,7 +273,7 @@ fn main(){
 		gg: 0
 	}
 
-	app.gg = gg.new_context({
+	app.gg = gg.new_context(
 		width: win_width
 		height: win_height
 		create_window: true
@@ -281,13 +282,13 @@ fn main(){
 		bg_color: bg_color
 		frame_fn: draw_frame
 		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(tf.get_info_string())
 		app.tf << tf
@@ -297,7 +298,7 @@ fn main(){
 	app.ttf_render << &ttf.TTF_render_Sokol{
 		bmp: &ttf.BitMap{
 			tf: &(app.tf[0])
-			buf: malloc(32000000)
+			buf: unsafe { malloc(32000000) }
 			buf_size: (32000000)
 			color: 0xFF0000FF
 			// style: .raw