Adds most of the toolsHEADmaster

1 files changed, 278 insertions, 0 deletions

diff --git a/v_windows/v/vlib/gg/gg.c.v b/v_windows/v/vlib/gg/gg.c.v
new file mode 100644
index 0000000..f6956e6
--- /dev/null
+++ b/v_windows/v/vlib/gg/gg.c.v
@@ -0,0 +1,278 @@
+// Copyright (c) 2019-2021 Alexander Medvednikov. All rights reserved.
+// Use of this source code is governed by an MIT license that can be found in the LICENSE file.
+
+module gg
+
+import os
+import gx
+import sokol
+import sokol.sapp
+import sokol.sgl
+import sokol.gfx
+import math
+
+pub struct Event {
+pub mut:
+	frame_count        u64
+	typ                sapp.EventType
+	key_code           KeyCode
+	char_code          u32
+	key_repeat         bool
+	modifiers          u32
+	mouse_button       MouseButton
+	mouse_x            f32
+	mouse_y            f32
+	mouse_dx           f32
+	mouse_dy           f32
+	scroll_x           f32
+	scroll_y           f32
+	num_touches        int
+	touches            [8]C.sapp_touchpoint
+	window_width       int
+	window_height      int
+	framebuffer_width  int
+	framebuffer_height int
+}
+
+[heap]
+pub struct Context {
+mut:
+	render_text bool = true
+	// a cache with all images created by the user. used for sokol image init and to save space
+	// (so that the user can store image ids, not entire Image objects)
+	image_cache   []Image
+	needs_refresh bool = true
+	ticks         int // for ui mode only
+pub:
+	native_rendering bool
+pub mut:
+	scale f32 = 1.0
+	// will get set to 2.0 for retina, will remain 1.0 for normal
+	width       int
+	height      int
+	clear_pass  C.sg_pass_action
+	window      C.sapp_desc
+	timage_pip  C.sgl_pipeline
+	config      Config
+	ft          &FT
+	font_inited bool
+	ui_mode     bool // do not redraw everything 60 times/second, but only when the user requests
+	frame       u64  // the current frame counted from the start of the application; always increasing
+	//
+	mbtn_mask     byte
+	mouse_buttons MouseButtons // typed version of mbtn_mask; easier to use for user programs
+	mouse_pos_x   int
+	mouse_pos_y   int
+	mouse_dx      int
+	mouse_dy      int
+	scroll_x      int
+	scroll_y      int
+	//
+	key_modifiers     Modifier // the current key modifiers
+	key_repeat        bool     // whether the pressed key was an autorepeated one
+	pressed_keys      [key_code_max]bool // an array representing all currently pressed keys
+	pressed_keys_edge [key_code_max]bool // true when the previous state of pressed_keys,
+	// *before* the current event was different
+}
+
+fn gg_init_sokol_window(user_data voidptr) {
+	mut g := unsafe { &Context(user_data) }
+	desc := sapp.create_desc()
+	/*
+	desc := C.sg_desc{
+		mtl_device: sapp.metal_get_device()
+		mtl_renderpass_descriptor_cb: sapp.metal_get_renderpass_descriptor
+		mtl_drawable_cb: sapp.metal_get_drawable
+		d3d11_device: sapp.d3d11_get_device()
+		d3d11_device_context: sapp.d3d11_get_device_context()
+		d3d11_render_target_view_cb: sapp.d3d11_get_render_target_view
+		d3d11_depth_stencil_view_cb: sapp.d3d11_get_depth_stencil_view
+	}
+	*/
+	gfx.setup(&desc)
+	sgl_desc := C.sgl_desc_t{}
+	sgl.setup(&sgl_desc)
+	g.scale = dpi_scale()
+	// is_high_dpi := sapp.high_dpi()
+	// fb_w := sapp.width()
+	// fb_h := sapp.height()
+	// println('g.scale=$g.scale is_high_dpi=$is_high_dpi fb_w=$fb_w fb_h=$fb_h')
+	// if g.config.init_text {
+	// `os.is_file()` won't work on Android if the font file is embedded into the APK
+	exists := $if !android { os.is_file(g.config.font_path) } $else { true }
+	if g.config.font_path != '' && !exists {
+		g.render_text = false
+	} else if g.config.font_path != '' && exists {
+		// t := time.ticks()
+		g.ft = new_ft(
+			font_path: g.config.font_path
+			custom_bold_font_path: g.config.custom_bold_font_path
+			scale: dpi_scale()
+		) or { panic(err) }
+		// println('FT took ${time.ticks()-t} ms')
+		g.font_inited = true
+	} else {
+		if g.config.font_bytes_normal.len > 0 {
+			g.ft = new_ft(
+				bytes_normal: g.config.font_bytes_normal
+				bytes_bold: g.config.font_bytes_bold
+				bytes_mono: g.config.font_bytes_mono
+				bytes_italic: g.config.font_bytes_italic
+				scale: sapp.dpi_scale()
+			) or { panic(err) }
+			g.font_inited = true
+		} else {
+			sfont := system_font_path()
+			if g.config.font_path != '' {
+				eprintln('font file "$g.config.font_path" does not exist, the system font ($sfont) was used instead.')
+			}
+
+			g.ft = new_ft(
+				font_path: sfont
+				custom_bold_font_path: g.config.custom_bold_font_path
+				scale: sapp.dpi_scale()
+			) or { panic(err) }
+			g.font_inited = true
+		}
+	}
+	//
+	mut pipdesc := C.sg_pipeline_desc{
+		label: c'alpha_image'
+	}
+	unsafe { vmemset(&pipdesc, 0, int(sizeof(pipdesc))) }
+
+	color_state := C.sg_color_state{
+		blend: C.sg_blend_state{
+			enabled: true
+			src_factor_rgb: gfx.BlendFactor(C.SG_BLENDFACTOR_SRC_ALPHA)
+			dst_factor_rgb: gfx.BlendFactor(C.SG_BLENDFACTOR_ONE_MINUS_SRC_ALPHA)
+		}
+	}
+	pipdesc.colors[0] = color_state
+
+	g.timage_pip = sgl.make_pipeline(&pipdesc)
+	//
+	if g.config.init_fn != voidptr(0) {
+		g.config.init_fn(g.config.user_data)
+	}
+	// Create images now that we can do that after sg is inited
+	if g.native_rendering {
+		return
+	}
+
+	for i in 0 .. g.image_cache.len {
+		if g.image_cache[i].simg.id == 0 {
+			g.image_cache[i].init_sokol_image()
+		}
+	}
+}
+
+//
+pub fn new_context(cfg Config) &Context {
+	mut g := &Context{
+		width: cfg.width
+		height: cfg.height
+		config: cfg
+		ft: 0
+		ui_mode: cfg.ui_mode
+		native_rendering: cfg.native_rendering
+	}
+	g.set_bg_color(cfg.bg_color)
+	// C.printf('new_context() %p\n', cfg.user_data)
+	window := C.sapp_desc{
+		user_data: g
+		init_userdata_cb: gg_init_sokol_window
+		frame_userdata_cb: gg_frame_fn
+		event_userdata_cb: gg_event_fn
+		fail_userdata_cb: gg_fail_fn
+		cleanup_userdata_cb: gg_cleanup_fn
+		window_title: &char(cfg.window_title.str)
+		html5_canvas_name: &char(cfg.window_title.str)
+		width: cfg.width
+		height: cfg.height
+		sample_count: cfg.sample_count
+		high_dpi: true
+		fullscreen: cfg.fullscreen
+		__v_native_render: cfg.native_rendering
+	}
+	g.window = window
+	return g
+}
+
+pub fn (ctx &Context) draw_circle_line(x f32, y f32, r int, segments int, c gx.Color) {
+	$if macos {
+		if ctx.native_rendering {
+			C.darwin_draw_circle(x - r + 1, ctx.height - (y + r + 3), r, c)
+			return
+		}
+	}
+	if c.a != 255 {
+		sgl.load_pipeline(ctx.timage_pip)
+	}
+	sgl.c4b(c.r, c.g, c.b, c.a)
+	nx := x * ctx.scale
+	ny := y * ctx.scale
+	nr := r * ctx.scale
+	mut theta := f32(0)
+	mut xx := f32(0)
+	mut yy := f32(0)
+	sgl.begin_line_strip()
+	for i := 0; i < segments + 1; i++ {
+		theta = 2.0 * f32(math.pi) * f32(i) / f32(segments)
+		xx = nr * math.cosf(theta)
+		yy = nr * math.sinf(theta)
+		sgl.v2f(xx + nx, yy + ny)
+	}
+	sgl.end()
+}
+
+pub fn high_dpi() bool {
+	return C.sapp_high_dpi()
+}
+
+pub fn screen_size() Size {
+	$if macos {
+		return C.gg_get_screen_size()
+	}
+	// TODO windows, linux, etc
+	return Size{}
+}
+
+fn C.WaitMessage()
+
+/*
+pub fn wait_events() {
+	unsafe {
+		$if macos {
+			#NSEvent *event = [NSApp nextEventMatchingMask:NSEventMaskAny
+			#untilDate:[NSDate distantFuture]
+			#inMode:NSDefaultRunLoopMode
+			#dequeue:YES];
+			#[NSApp sendEvent:event];
+		}
+		$if windows {
+			C.WaitMessage()
+		}
+	}
+}
+*/
+
+// TODO: Fix alpha
+pub fn (ctx &Context) draw_rect(x f32, y f32, w f32, h f32, c gx.Color) {
+	$if macos {
+		if ctx.native_rendering {
+			C.darwin_draw_rect(x, ctx.height - (y + h), w, h, c)
+			return
+		}
+	}
+	if c.a != 255 {
+		sgl.load_pipeline(ctx.timage_pip)
+	}
+	sgl.c4b(c.r, c.g, c.b, c.a)
+	sgl.begin_quads()
+	sgl.v2f(x * ctx.scale, y * ctx.scale)
+	sgl.v2f((x + w) * ctx.scale, y * ctx.scale)
+	sgl.v2f((x + w) * ctx.scale, (y + h) * ctx.scale)
+	sgl.v2f(x * ctx.scale, (y + h) * ctx.scale)
+	sgl.end()
+}