4 files changed, 264 insertions, 0 deletions
diff --git a/v_windows/v/examples/ttf_font/Graduate-Regular.ttf b/v_windows/v/examples/ttf_font/Graduate-Regular.ttf
new file mode 100644
index 0000000..0ce68b7
--- /dev/null
+++ b/v_windows/v/examples/ttf_font/Graduate-Regular.ttf
diff --git a/v_windows/v/examples/ttf_font/Imprima-Regular.ttf b/v_windows/v/examples/ttf_font/Imprima-Regular.ttf
new file mode 100644
index 0000000..9c701e1
--- /dev/null
+++ b/v_windows/v/examples/ttf_font/Imprima-Regular.ttf
diff --git a/v_windows/v/examples/ttf_font/OFL.txt b/v_windows/v/examples/ttf_font/OFL.txt
new file mode 100644
index 0000000..3a5f6c1
--- /dev/null
+++ b/v_windows/v/examples/ttf_font/OFL.txt
@@ -0,0 +1,93 @@
+Copyright (c) 2012, Eduardo Tunni (http://www.tipo.net.ar), with Reserved Font Name "Imprima"
+
+This Font Software is licensed under the SIL Open Font License, Version 1.1.
+This license is copied below, and is also available with a FAQ at:
+http://scripts.sil.org/OFL
+
+
+-----------------------------------------------------------
+SIL OPEN FONT LICENSE Version 1.1 - 26 February 2007
+-----------------------------------------------------------
+
+PREAMBLE
+The goals of the Open Font License (OFL) are to stimulate worldwide
+development of collaborative font projects, to support the font creation
+efforts of academic and linguistic communities, and to provide a free and
+open framework in which fonts may be shared and improved in partnership
+with others.
+
+The OFL allows the licensed fonts to be used, studied, modified and
+redistributed freely as long as they are not sold by themselves. The
+fonts, including any derivative works, can be bundled, embedded, 
+redistributed and/or sold with any software provided that any reserved
+names are not used by derivative works. The fonts and derivatives,
+however, cannot be released under any other type of license. The
+requirement for fonts to remain under this license does not apply
+to any document created using the fonts or their derivatives.
+
+DEFINITIONS
+"Font Software" refers to the set of files released by the Copyright
+Holder(s) under this license and clearly marked as such. This may
+include source files, build scripts and documentation.
+
+"Reserved Font Name" refers to any names specified as such after the
+copyright statement(s).
+
+"Original Version" refers to the collection of Font Software components as
+distributed by the Copyright Holder(s).
+
+"Modified Version" refers to any derivative made by adding to, deleting,
+or substituting -- in part or in whole -- any of the components of the
+Original Version, by changing formats or by porting the Font Software to a
+new environment.
+
+"Author" refers to any designer, engineer, programmer, technical
+writer or other person who contributed to the Font Software.
+
+PERMISSION & CONDITIONS
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Font Software, to use, study, copy, merge, embed, modify,
+redistribute, and sell modified and unmodified copies of the Font
+Software, subject to the following conditions:
+
+1) Neither the Font Software nor any of its individual components,
+in Original or Modified Versions, may be sold by itself.
+
+2) Original or Modified Versions of the Font Software may be bundled,
+redistributed and/or sold with any software, provided that each copy
+contains the above copyright notice and this license. These can be
+included either as stand-alone text files, human-readable headers or
+in the appropriate machine-readable metadata fields within text or
+binary files as long as those fields can be easily viewed by the user.
+
+3) No Modified Version of the Font Software may use the Reserved Font
+Name(s) unless explicit written permission is granted by the corresponding
+Copyright Holder. This restriction only applies to the primary font name as
+presented to the users.
+
+4) The name(s) of the Copyright Holder(s) or the Author(s) of the Font
+Software shall not be used to promote, endorse or advertise any
+Modified Version, except to acknowledge the contribution(s) of the
+Copyright Holder(s) and the Author(s) or with their explicit written
+permission.
+
+5) The Font Software, modified or unmodified, in part or in whole,
+must be distributed entirely under this license, and must not be
+distributed under any other license. The requirement for fonts to
+remain under this license does not apply to any document created
+using the Font Software.
+
+TERMINATION
+This license becomes null and void if any of the above conditions are
+not met.
+
+DISCLAIMER
+THE FONT SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT
+OF COPYRIGHT, PATENT, TRADEMARK, OR OTHER RIGHT. IN NO EVENT SHALL THE
+COPYRIGHT HOLDER BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+INCLUDING ANY GENERAL, SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL
+DAMAGES, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF THE USE OR INABILITY TO USE THE FONT SOFTWARE OR FROM
+OTHER DEALINGS IN THE FONT SOFTWARE.
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()
+}