Adds most of the toolsHEADmaster

1 files changed, 825 insertions, 0 deletions

diff --git a/v_windows/v/old/vlib/x/ttf/render_bmp.v b/v_windows/v/old/vlib/x/ttf/render_bmp.v
new file mode 100644
index 0000000..c0cf6dc
--- /dev/null
+++ b/v_windows/v/old/vlib/x/ttf/render_bmp.v
@@ -0,0 +1,825 @@
+module ttf
+
+/**********************************************************************
+*
+* BMP render module utility functions
+*
+* Copyright (c) 2021 Dario Deledda. All rights reserved.
+* Use of this source code is governed by an MIT license
+* that can be found in the LICENSE file.
+*
+* Note:
+*
+* TODO:
+* - manage text directions R to L
+**********************************************************************/
+import encoding.utf8
+import math
+import math.mathutil as mu
+
+pub struct BitMap {
+pub mut:
+	tf       &TTF_File
+	buf      &byte = 0 // pointer to the memory buffer
+	buf_size int   // allocated buf size in bytes
+	width    int = 1 // width of the buffer
+	height   int = 1 // height of the buffer
+	bp       int = 4 // byte per pixel of the buffer
+	bg_color u32 = 0xFFFFFF_00 // background RGBA format
+	color    u32 = 0x000000_FF // RGBA format
+	scale    f32 = 1.0 // internal usage!!
+	scale_x  f32 = 1.0 // X scale of the single glyph
+	scale_y  f32 = 1.0 // Y scale of the single glyph
+	angle    f32 = 0.0 // angle of rotation of the bitmap
+	// spaces
+	space_cw   f32 = 1.0 // width of the space glyph internal usage!!
+	space_mult f32 = f32(0.0) // 1.0/16.0  // space between letter, is a multiplier for a standrd space ax
+	// used only by internal text rendering!!
+	tr_matrix          []f32      = [f32(1), 0, 0, 0, 1, 0, 0, 0, 0] // transformation matrix
+	ch_matrix          []f32      = [f32(1), 0, 0, 0, 1, 0, 0, 0, 0] // character matrix
+	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
+	filler             [][]int    // filler buffer for the renderer
+	// flag to force font embedded metrics
+	use_font_metrics bool
+}
+
+/******************************************************************************
+*
+* Utility
+*
+******************************************************************************/
+// clear clear the bitmap with 0 bytes
+pub fn (mut bmp BitMap) clear() {
+	mut sz := bmp.width * bmp.height * bmp.bp
+	unsafe {
+		C.memset(bmp.buf, 0x00, sz)
+	}
+}
+
+// transform matrix applied to the text
+fn (bmp &BitMap) trf_txt(p &Point) (int, int) {
+	return int(p.x * bmp.tr_matrix[0] + p.y * bmp.tr_matrix[3] + bmp.tr_matrix[6]), int(
+		p.x * bmp.tr_matrix[1] + p.y * bmp.tr_matrix[4] + bmp.tr_matrix[7])
+}
+
+// transform matrix applied to the char
+fn (bmp &BitMap) trf_ch(p &Point) (int, int) {
+	return int(p.x * bmp.ch_matrix[0] + p.y * bmp.ch_matrix[3] + bmp.ch_matrix[6]), int(
+		p.x * bmp.ch_matrix[1] + p.y * bmp.ch_matrix[4] + bmp.ch_matrix[7])
+}
+
+// set draw postion in the buffer
+pub fn (mut bmp BitMap) set_pos(x f32, y f32) {
+	bmp.tr_matrix[6] = x
+	bmp.tr_matrix[7] = y
+}
+
+// set the rotation angle in radiants
+pub fn (mut bmp BitMap) set_rotation(a f32) {
+	bmp.tr_matrix[0] = f32(math.cos(a)) // 1
+	bmp.tr_matrix[1] = f32(-math.sin(a)) // 0
+	bmp.tr_matrix[3] = f32(math.sin(a)) // 0
+	bmp.tr_matrix[4] = f32(math.cos(a)) // 1
+}
+
+/******************************************************************************
+*
+* Filler functions
+*
+******************************************************************************/
+pub fn (mut bmp BitMap) init_filler() {
+	h := bmp.height - bmp.filler.len
+	if h < 1 {
+		return
+	}
+	for _ in 0 .. h {
+		bmp.filler << []int{len: 4}
+	}
+	// dprintln("Init filler: ${bmp.filler.len} rows")
+}
+
+pub fn (mut bmp BitMap) clear_filler() {
+	for i in 0 .. bmp.height {
+		bmp.filler[i].clear()
+	}
+}
+
+pub fn (mut bmp BitMap) exec_filler() {
+	for y in 0 .. bmp.height {
+		if bmp.filler[y].len > 0 {
+			bmp.filler[y].sort()
+			if bmp.filler[y].len & 1 != 0 {
+				// dprintln("even line!! $y => ${bmp.filler[y]}")
+				continue
+			}
+			mut index := 0
+			for index < bmp.filler[y].len {
+				startx := bmp.filler[y][index] + 1
+				endx := bmp.filler[y][index + 1]
+				if startx >= endx {
+					index += 2
+					continue
+				}
+				for x in startx .. endx {
+					bmp.plot(x, y, bmp.color)
+				}
+				index += 2
+			}
+		}
+	}
+}
+
+pub fn (mut bmp BitMap) fline(in_x0 int, in_y0 int, in_x1 int, in_y1 int, c u32) {
+	mut x0 := f32(in_x0)
+	mut x1 := f32(in_x1)
+	mut y0 := f32(in_y0)
+	mut y1 := f32(in_y1)
+	mut tmp := f32(0)
+
+	// check bounds
+	if (in_x0 < 0 && in_x1 < 0) || (in_x0 > bmp.width && in_x1 > bmp.width) {
+		return
+	}
+
+	if y1 < y0 {
+		tmp = x0
+		x0 = x1
+		x1 = tmp
+
+		tmp = y0
+		y0 = y1
+		y1 = tmp
+	}
+
+	mut dx := x1 - x0
+	mut dy := y1 - y0
+
+	if dy == 0 {
+		if in_y0 >= 0 && in_y0 < bmp.filler.len {
+			if in_x0 <= in_x1 {
+				bmp.filler[in_y0] << in_x0
+				bmp.filler[in_y0] << in_x1
+			} else {
+				bmp.filler[in_y0] << in_x1
+				bmp.filler[in_y0] << in_x0
+			}
+		}
+		return
+	}
+	mut n := dx / dy
+	for y in 0 .. int(dy + 0.5) {
+		yd := int(y + y0)
+		x := n * y + x0
+		if x > bmp.width || yd >= bmp.filler.len {
+			break
+		}
+		if yd >= 0 && yd < bmp.filler.len {
+			bmp.filler[yd] << int(x + 0.5)
+			// bmp.plot(int(x+0.5), yd, bmp.color)
+		}
+	}
+}
+
+/******************************************************************************
+*
+* Draw functions
+*
+******************************************************************************/
+[inline]
+pub fn (mut bmp BitMap) plot(x int, y int, c u32) bool {
+	if x < 0 || x >= bmp.width || y < 0 || y >= bmp.height {
+		return false
+	}
+	mut index := (x + y * bmp.width) * bmp.bp
+	unsafe {
+		// bmp.buf[index]=0xFF
+		bmp.buf[index] = byte(c & 0xFF) // write only the alpha
+	}
+	/*
+	for count in 0..(bmp.bp) {
+		unsafe{
+			bmp.buf[index + count] = byte((c >> (bmp.bp - count - 1) * 8) & 0x0000_00FF)
+		}
+	}
+	*/
+	return true
+}
+
+/******************************************************************************
+*
+* smooth draw functions
+*
+******************************************************************************/
+// aline draw an aliased line on the bitmap
+pub fn (mut bmp BitMap) aline(in_x0 int, in_y0 int, in_x1 int, in_y1 int, c u32) {
+	// mut c1 := c
+	mut x0 := f32(in_x0)
+	mut x1 := f32(in_x1)
+	mut y0 := f32(in_y0)
+	mut y1 := f32(in_y1)
+	mut tmp := f32(0)
+
+	mut dx := x1 - x0
+	mut dy := y1 - y0
+
+	dist := f32(0.4)
+
+	if mu.abs(dx) > mu.abs(dy) {
+		if x1 < x0 {
+			tmp = x0
+			x0 = x1
+			x1 = tmp
+
+			tmp = y0
+			y0 = y1
+			y1 = tmp
+		}
+		dx = x1 - x0
+		dy = y1 - y0
+
+		x0 += 0.5
+		y0 += 0.5
+
+		m := dy / dx
+		mut x := x0
+		for x <= x1 + 0.5 {
+			y := m * (x - x0) + y0
+			e := 1 - mu.abs(y - 0.5 - int(y))
+			bmp.plot(int(x), int(y), color_multiply_alpha(c, e * 0.75))
+
+			ys1 := y + dist
+			if int(ys1) != int(y) {
+				v1 := mu.abs(ys1 - y) / dist * (1 - e)
+				bmp.plot(int(x), int(ys1), color_multiply_alpha(c, v1))
+			}
+
+			ys2 := y - dist
+			if int(ys2) != int(y) {
+				v2 := mu.abs(y - ys2) / dist * (1 - e)
+				bmp.plot(int(x), int(ys2), color_multiply_alpha(c, v2))
+			}
+
+			x += 1.0
+		}
+	} else {
+		if y1 < y0 {
+			tmp = x0
+			x0 = x1
+			x1 = tmp
+
+			tmp = y0
+			y0 = y1
+			y1 = tmp
+		}
+		dx = x1 - x0
+		dy = y1 - y0
+
+		x0 += 0.5
+		y0 += 0.5
+
+		n := dx / dy
+		mut y := y0
+		for y <= y1 + 0.5 {
+			x := n * (y - y0) + x0
+			e := f32(1 - mu.abs(x - 0.5 - int(x)))
+			bmp.plot(int(x), int(y), color_multiply_alpha(c, f32(e * 0.75)))
+
+			xs1 := x + dist
+			if int(xs1) != int(x) {
+				v1 := mu.abs(xs1 - x) / dist * (1 - e)
+				bmp.plot(int(xs1), int(y), color_multiply_alpha(c, f32(v1)))
+			}
+
+			xs2 := x - dist
+			if int(xs2) != int(x) {
+				v2 := mu.abs(x - xs1) / dist * (1 - e)
+				bmp.plot(int(xs2), int(y), color_multiply_alpha(c, f32(v2)))
+			}
+			y += 1.0
+		}
+	}
+}
+
+/******************************************************************************
+*
+* draw functions
+*
+******************************************************************************/
+pub fn (mut bmp BitMap) line(in_x0 int, in_y0 int, in_x1 int, in_y1 int, c u32) {
+	// outline with aliased borders
+	if bmp.style == .outline_aliased {
+		bmp.aline(in_x0, in_y0, in_x1, in_y1, c)
+		return
+	}
+	// filled with aliased borders
+	else if bmp.style == .filled {
+		bmp.aline(in_x0, in_y0, in_x1, in_y1, c)
+		bmp.fline(in_x0, in_y0, in_x1, in_y1, c)
+		return
+	}
+	// only the filler is drawn
+	else if bmp.style == .raw {
+		bmp.fline(in_x0, in_y0, in_x1, in_y1, c)
+		return
+	}
+	// if we are here we are drawing an outlined border
+
+	x0 := int(in_x0)
+	x1 := int(in_x1)
+	y0 := int(in_y0)
+	y1 := int(in_y1)
+	// dprintln("line[$x0,$y0,$x1,$y1]")
+
+	mut x := x0
+	mut y := y0
+
+	dx := mu.abs(x1 - x0)
+	sx := if x0 < x1 { 1 } else { -1 }
+	dy := -mu.abs(y1 - y0)
+	sy := if y0 < y1 { 1 } else { -1 }
+
+	// verical line
+	if dx == 0 {
+		if y0 < y1 {
+			for yt in y0 .. y1 + 1 {
+				bmp.plot(x0, yt, c)
+			}
+			return
+		}
+		for yt in y1 .. y0 + 1 {
+			bmp.plot(x0, yt, c)
+		}
+		// horizontal line
+		return
+	} else if dy == 0 {
+		if x0 < x1 {
+			for xt in x0 .. x1 + 1 {
+				bmp.plot(xt, y0, c)
+			}
+			return
+		}
+		for xt in x1 .. x0 + 1 {
+			bmp.plot(xt, y0, c)
+		}
+		return
+	}
+
+	mut err := dx + dy // error value e_xy
+	for {
+		// bmp.plot(x, y, u32(0xFF00))
+		bmp.plot(x, y, c)
+
+		// dprintln("$x $y [$x0,$y0,$x1,$y1]")
+		if x == x1 && y == y1 {
+			break
+		}
+		e2 := 2 * err
+		if e2 >= dy { // e_xy+e_x > 0
+			err += dy
+			x += sx
+		}
+		if e2 <= dx { // e_xy+e_y < 0
+			err += dx
+			y += sy
+		}
+	}
+}
+
+pub fn (mut bmp BitMap) box(in_x0 int, in_y0 int, in_x1 int, in_y1 int, c u32) {
+	bmp.line(in_x0, in_y0, in_x1, in_y0, c)
+	bmp.line(in_x1, in_y0, in_x1, in_y1, c)
+	bmp.line(in_x0, in_y1, in_x1, in_y1, c)
+	bmp.line(in_x0, in_y0, in_x0, in_y1, c)
+}
+
+pub fn (mut bmp BitMap) quadratic(in_x0 int, in_y0 int, in_x1 int, in_y1 int, in_cx int, in_cy int, c u32) {
+	/*
+	x0 := int(in_x0 * bmp.scale)
+	x1 := int(in_x1 * bmp.scale)
+	y0 := int(in_y0 * bmp.scale)
+	y1 := int(in_y1 * bmp.scale)
+	cx := int(in_cx * bmp.scale)
+	cy := int(in_cy * bmp.scale)
+	*/
+	x0 := int(in_x0)
+	x1 := int(in_x1)
+	y0 := int(in_y0)
+	y1 := int(in_y1)
+	cx := int(in_cx)
+	cy := int(in_cy)
+
+	mut division := f64(1.0)
+	dx := mu.abs(x0 - x1)
+	dy := mu.abs(y0 - y1)
+
+	// if few pixel draw a simple line
+	// if dx == 0 && dy == 0 {
+	if dx <= 2 || dy <= 2 {
+		// bmp.plot(x0, y0, c)
+		bmp.line(x0, y0, x1, y1, c)
+		return
+	}
+
+	division = 1.0 / (f64(if dx > dy { dx } else { dy }))
+
+	// division = 0.1   // 10 division
+	// division = 0.25  // 4 division
+
+	// dprintln("div: $division")
+
+	/*
+	----- Bezier quadratic form -----
+	t = 0.5; // given example value, half length of the curve
+	x = (1 - t) * (1 - t) * p[0].x + 2 * (1 - t) * t * p[1].x + t * t * p[2].x;
+	y = (1 - t) * (1 - t) * p[0].y + 2 * (1 - t) * t * p[1].y + t * t * p[2].y;
+	---------------------------------
+	*/
+
+	mut x_old := x0
+	mut y_old := y0
+	mut t := 0.0
+
+	for t <= (1.0 + division / 2.0) {
+		s := 1.0 - t
+		x := s * s * x0 + 2.0 * s * t * cx + t * t * x1
+		y := s * s * y0 + 2.0 * s * t * cy + t * t * y1
+		xi := int(x + 0.5)
+		yi := int(y + 0.5)
+		// bmp.plot(xi, yi, c)
+		bmp.line(x_old, y_old, xi, yi, c)
+		x_old = xi
+		y_old = yi
+		t += division
+	}
+}
+
+/******************************************************************************
+*
+* TTF Query functions
+*
+******************************************************************************/
+pub fn (mut bmp BitMap) get_chars_bbox(in_string string) []int {
+	mut res := []int{}
+	mut w := 0
+
+	mut space_cw, _ := bmp.tf.get_horizontal_metrics(u16(` `))
+	div_space_cw := int((f32(space_cw) * bmp.space_mult) * bmp.scale)
+	space_cw = int(space_cw * bmp.scale)
+
+	bmp.tf.reset_kern()
+
+	mut i := 0
+	for i < in_string.len {
+		mut char := u16(in_string[i])
+
+		// draw the space
+		if int(char) == 32 {
+			w += int(space_cw * bmp.space_cw)
+			i++
+			continue
+		}
+		// manage unicode chars like latin greek etc
+		c_len := ((0xe5000000 >> ((char >> 3) & 0x1e)) & 3) + 1
+		if c_len > 1 {
+			tmp_char := utf8.get_uchar(in_string, i)
+			// dprintln("tmp_char: ${tmp_char.hex()}")
+			char = u16(tmp_char)
+		}
+
+		c_index := bmp.tf.map_code(int(char))
+		// Glyph not found
+		if c_index == 0 {
+			w += int(space_cw * bmp.space_cw)
+			i += c_len
+			continue
+		}
+
+		ax, ay := bmp.tf.next_kern(c_index)
+		// dprintln("char_index: $c_index ax: $ax ay: $ay")
+
+		// cw, lsb := bmp.tf.get_horizontal_metrics(u16(char))
+		// dprintln("metrics: [${u16(char):c}] cw:$cw lsb:$lsb")
+
+		//----- Calc Glyph transformations -----
+		mut x0 := w + int(ax * bmp.scale)
+		mut y0 := 0 + int(ay * bmp.scale)
+
+		p := Point{x0, y0, false}
+		x1, y1 := bmp.trf_txt(p)
+		// init ch_matrix
+		bmp.ch_matrix[0] = bmp.tr_matrix[0] * bmp.scale * bmp.scale_x
+		bmp.ch_matrix[1] = bmp.tr_matrix[1] * bmp.scale * bmp.scale_x
+		bmp.ch_matrix[3] = bmp.tr_matrix[3] * -bmp.scale * bmp.scale_y
+		bmp.ch_matrix[4] = bmp.tr_matrix[4] * -bmp.scale * bmp.scale_y
+		bmp.ch_matrix[6] = int(x1)
+		bmp.ch_matrix[7] = int(y1)
+
+		// x_min, x_max, y_min, y_max := bmp.tf.read_glyph_dim(c_index)
+		x_min, x_max, _, _ := bmp.tf.read_glyph_dim(c_index)
+		//-----------------
+
+		width := int((mu.abs(x_max + x_min) + ax) * bmp.scale)
+		// width := int((cw+ax) * bmp.scale)
+		w += width + div_space_cw
+		h := int(mu.abs(int(bmp.tf.y_max - bmp.tf.y_min)) * bmp.scale)
+		res << w
+		res << h
+
+		i += c_len
+	}
+	return res
+}
+
+pub fn (mut bmp BitMap) get_bbox(in_string string) (int, int) {
+	mut w := 0
+
+	mut space_cw, _ := bmp.tf.get_horizontal_metrics(u16(` `))
+	div_space_cw := int((f32(space_cw) * bmp.space_mult) * bmp.scale)
+	space_cw = int(space_cw * bmp.scale)
+
+	bmp.tf.reset_kern()
+
+	mut i := 0
+	for i < in_string.len {
+		mut char := u16(in_string[i])
+
+		// draw the space
+		if int(char) == 32 {
+			w += int(space_cw * bmp.space_cw)
+			i++
+			continue
+		}
+		// manage unicode chars like latin greek etc
+		c_len := ((0xe5000000 >> ((char >> 3) & 0x1e)) & 3) + 1
+		if c_len > 1 {
+			tmp_char := utf8.get_uchar(in_string, i)
+			// dprintln("tmp_char: ${tmp_char.hex()}")
+			char = u16(tmp_char)
+		}
+
+		c_index := bmp.tf.map_code(int(char))
+		// Glyph not found
+		if c_index == 0 {
+			w += int(space_cw * bmp.space_cw)
+			i += c_len
+			continue
+		}
+		ax, ay := bmp.tf.next_kern(c_index)
+		// dprintln("char_index: $c_index ax: $ax ay: $ay")
+
+		// cw, lsb := bmp.tf.get_horizontal_metrics(u16(char))
+		// dprintln("metrics: [${u16(char):c}] cw:$cw lsb:$lsb")
+
+		//----- Calc Glyph transformations -----
+		mut x0 := w + int(ax * bmp.scale)
+		mut y0 := 0 + int(ay * bmp.scale)
+
+		p := Point{x0, y0, false}
+		x1, y1 := bmp.trf_txt(p)
+		// init ch_matrix
+		bmp.ch_matrix[0] = bmp.tr_matrix[0] * bmp.scale * bmp.scale_x
+		bmp.ch_matrix[1] = bmp.tr_matrix[1] * bmp.scale * bmp.scale_x
+		bmp.ch_matrix[3] = bmp.tr_matrix[3] * -bmp.scale * bmp.scale_y
+		bmp.ch_matrix[4] = bmp.tr_matrix[4] * -bmp.scale * bmp.scale_y
+		bmp.ch_matrix[6] = int(x1)
+		bmp.ch_matrix[7] = int(y1)
+
+		x_min, x_max, _, _ := bmp.tf.read_glyph_dim(c_index)
+		// x_min := 1
+		// x_max := 2
+		//-----------------
+
+		width := int((mu.abs(x_max + x_min) + ax) * bmp.scale)
+		// width := int((cw+ax) * bmp.scale)
+		w += width + div_space_cw
+
+		i += c_len
+	}
+
+	// dprintln("y_min: $bmp.tf.y_min y_max: $bmp.tf.y_max res: ${int((bmp.tf.y_max - bmp.tf.y_min)*buf.scale)} width: ${int( (cw) * buf.scale)}")
+	// buf.box(0,y_base - int((bmp.tf.y_min)*buf.scale), int( (x_max) * buf.scale), y_base-int((bmp.tf.y_max)*buf.scale), u32(0xFF00_0000) )
+	return w, int(mu.abs(int(bmp.tf.y_max - bmp.tf.y_min)) * bmp.scale)
+}
+
+/******************************************************************************
+*
+* TTF draw glyph
+*
+******************************************************************************/
+fn (mut bmp BitMap) draw_notdef_glyph(in_x int, in_w int) {
+	mut p := Point{in_x, 0, false}
+	x1, y1 := bmp.trf_txt(p)
+	// init ch_matrix
+	bmp.ch_matrix[0] = bmp.tr_matrix[0] * bmp.scale * bmp.scale_x
+	bmp.ch_matrix[1] = bmp.tr_matrix[1] * bmp.scale * bmp.scale_x
+	bmp.ch_matrix[3] = bmp.tr_matrix[3] * -bmp.scale * bmp.scale_y
+	bmp.ch_matrix[4] = bmp.tr_matrix[4] * -bmp.scale * bmp.scale_y
+	bmp.ch_matrix[6] = int(x1)
+	bmp.ch_matrix[7] = int(y1)
+	x, y := bmp.trf_ch(p)
+
+	y_h := mu.abs(bmp.tf.y_max - bmp.tf.y_min) * bmp.scale * 0.5
+
+	bmp.box(int(x), int(y), int(x - in_w), int(y - y_h), bmp.color)
+	bmp.line(int(x), int(y), int(x - in_w), int(y - y_h), bmp.color)
+	bmp.line(int(x - in_w), int(y), int(x), int(y - y_h), bmp.color)
+}
+
+pub fn (mut bmp BitMap) draw_text(in_string string) (int, int) {
+	mut w := 0
+
+	mut space_cw, _ := bmp.tf.get_horizontal_metrics(u16(` `))
+	div_space_cw := int((f32(space_cw) * bmp.space_mult) * bmp.scale)
+	space_cw = int(space_cw * bmp.scale)
+
+	bmp.tf.reset_kern()
+
+	mut i := 0
+	for i < in_string.len {
+		mut char := u16(in_string[i])
+
+		// draw the space
+		if int(char) == 32 {
+			w += int(space_cw * bmp.space_cw)
+			i++
+			continue
+		}
+		// manage unicode chars like latin greek etc
+		c_len := ((0xe5000000 >> ((char >> 3) & 0x1e)) & 3) + 1
+		if c_len > 1 {
+			tmp_char := utf8.get_uchar(in_string, i)
+			// dprintln("tmp_char: ${tmp_char.hex()}")
+			char = u16(tmp_char)
+		}
+
+		c_index := bmp.tf.map_code(int(char))
+		// Glyph not found
+		if c_index == 0 {
+			bmp.draw_notdef_glyph(w, int(space_cw * bmp.space_cw))
+			w += int(space_cw * bmp.space_cw)
+			i += c_len
+			continue
+		}
+
+		ax, ay := bmp.tf.next_kern(c_index)
+		// dprintln("char_index: $c_index ax: $ax ay: $ay")
+
+		cw, _ := bmp.tf.get_horizontal_metrics(u16(char))
+		// cw, lsb := bmp.tf.get_horizontal_metrics(u16(char))
+		// dprintln("metrics: [${u16(char):c}] cw:$cw lsb:$lsb")
+
+		//----- Draw_Glyph transformations -----
+		mut x0 := w + int(ax * bmp.scale)
+		mut y0 := 0 + int(ay * bmp.scale)
+
+		p := Point{x0, y0, false}
+		x1, y1 := bmp.trf_txt(p)
+		// init ch_matrix
+		bmp.ch_matrix[0] = bmp.tr_matrix[0] * bmp.scale * bmp.scale_x
+		bmp.ch_matrix[1] = bmp.tr_matrix[1] * bmp.scale * bmp.scale_x
+		bmp.ch_matrix[3] = bmp.tr_matrix[3] * -bmp.scale * bmp.scale_y
+		bmp.ch_matrix[4] = bmp.tr_matrix[4] * -bmp.scale * bmp.scale_y
+		bmp.ch_matrix[6] = int(x1)
+		bmp.ch_matrix[7] = int(y1)
+
+		x_min, x_max := bmp.draw_glyph(c_index)
+		// x_min := 1
+		// x_max := 2
+		//-----------------
+
+		mut width := int((mu.abs(x_max + x_min) + ax) * bmp.scale)
+		if bmp.use_font_metrics {
+			width = int((cw + ax) * bmp.scale)
+		}
+		w += width + div_space_cw
+		i += c_len
+	}
+
+	// dprintln("y_min: $bmp.tf.y_min y_max: $bmp.tf.y_max res: ${int((bmp.tf.y_max - bmp.tf.y_min)*buf.scale)} width: ${int( (cw) * buf.scale)}")
+	// buf.box(0,y_base - int((bmp.tf.y_min)*buf.scale), int( (x_max) * buf.scale), y_base-int((bmp.tf.y_max)*buf.scale), u32(0xFF00_0000) )
+	return w, int(mu.abs(int(bmp.tf.y_max - bmp.tf.y_min)) * bmp.scale)
+}
+
+pub fn (mut bmp BitMap) draw_glyph(index u16) (int, int) {
+	glyph := bmp.tf.read_glyph(index)
+
+	if !glyph.valid_glyph {
+		return 0, 0
+	}
+
+	if bmp.style == .filled || bmp.style == .raw {
+		bmp.clear_filler()
+	}
+
+	mut s := 0 // status
+	mut c := 0 // contours count
+	mut contour_start := 0
+	mut x0 := 0
+	mut y0 := 0
+	color := bmp.color // u32(0xFFFF_FF00) // RGBA white
+	// color1            := u32(0xFF00_0000) // RGBA red
+	// color2            := u32(0x00FF_0000) // RGBA green
+
+	mut sp_x := 0
+	mut sp_y := 0
+	mut point := Point{}
+
+	for count, point_raw in glyph.points {
+		// dprintln("count: $count, state: $s pl:$glyph.points.len")
+		point.x = point_raw.x
+		point.y = point_raw.y
+
+		point.x, point.y = bmp.trf_ch(point)
+		point.on_curve = point_raw.on_curve
+
+		if s == 0 {
+			x0 = point.x
+			y0 = point.y
+			sp_x = x0
+			sp_y = y0
+			s = 1 // next state
+			continue
+		} else if s == 1 {
+			if point.on_curve {
+				bmp.line(x0, y0, point.x, point.y, color)
+				// bmp.aline(x0, y0, point.x, point.y, u32(0xFFFF0000))
+				x0 = point.x
+				y0 = point.y
+			} else {
+				s = 2
+			}
+		} else {
+			// dprintln("s==2")
+			mut prev := glyph.points[count - 1]
+			prev.x, prev.y = bmp.trf_ch(prev)
+			if point.on_curve {
+				// dprintln("HERE1")
+				// ctx.quadraticCurveTo(prev.x + x, prev.y + y,point.x + x, point.y + y);
+				// bmp.line(x0, y0, point.x + in_x, point.y + in_y, color1)
+				// bmp.quadratic(x0, y0, point.x + in_x, point.y + in_y, prev.x + in_x, prev.y + in_y, u32(0xa0a00000))
+				bmp.quadratic(x0, y0, point.x, point.y, prev.x, prev.y, color)
+				x0 = point.x
+				y0 = point.y
+				s = 1
+			} else {
+				// dprintln("HERE2")
+				// ctx.quadraticCurveTo(prev.x + x, prev.y + y,
+				//            (prev.x + point.x) / 2 + x,
+				//            (prev.y + point.y) / 2 + y);
+
+				// bmp.line(x0, y0, (prev.x + point.x)/2, (prev.y + point.y)/2, color2)
+				// bmp.quadratic(x0, y0, (prev.x + point.x)/2, (prev.y + point.y)/2, prev.x, prev.y, color2)
+				bmp.quadratic(x0, y0, (prev.x + point.x) / 2, (prev.y + point.y) / 2,
+					prev.x, prev.y, color)
+				x0 = (prev.x + point.x) / 2
+				y0 = (prev.y + point.y) / 2
+			}
+		}
+
+		if count == glyph.contour_ends[c] {
+			// dprintln("count == glyph.contour_ends[count]")
+			if s == 2 { // final point was off-curve. connect to start
+
+				mut start_point := glyph.points[contour_start]
+				start_point.x, start_point.y = bmp.trf_ch(start_point)
+				if point.on_curve {
+					// ctx.quadraticCurveTo(prev.x + x, prev.y + y,
+					// point.x + x, point.y + y);
+					// bmp.line(x0, y0, start_point.x + in_x, start_point.y + in_y, u32(0x00FF0000))
+
+					//	start_point.x + in_x, start_point.y + in_y, u32(0xFF00FF00))
+					bmp.quadratic(x0, y0, start_point.x, start_point.y, start_point.x,
+						start_point.y, color)
+				} else {
+					// ctx.quadraticCurveTo(prev.x + x, prev.y + y,
+					//        (prev.x + point.x) / 2 + x,
+					//        (prev.y + point.y) / 2 + y);
+
+					// bmp.line(x0, y0, start_point.x, start_point.y, u32(0x00FF0000)
+					// u32(0xFF000000))
+					bmp.quadratic(x0, y0, start_point.x, start_point.y, (point.x + start_point.x) / 2,
+						(point.y + start_point.y) / 2, color)
+				}
+			} else {
+				// last point not in a curve
+				// bmp.line(point.x, point.y, sp_x, sp_y, u32(0x00FF0000))
+				bmp.line(point.x, point.y, sp_x, sp_y, color)
+			}
+			contour_start = count + 1
+			s = 0
+			c++
+		}
+	}
+
+	if bmp.style == .filled || bmp.style == .raw {
+		bmp.exec_filler()
+	}
+	x_min := glyph.x_min
+	x_max := glyph.x_max
+	return x_min, x_max
+
+	// return glyph.x_min, glyph.x_max
+}