forked from len0rd/rockbox
lua use lcd_drawline to draw lines inside rliimages
rewrite draw_text to use new viewport buffer set_viewport now accepts rliimage to allowe interfacing with rb. functions fix long standing 2-bit bug with text drawing in lua fix 2-bit img saving bug (i'm guessing just a one off, just enabled clipping) fix font_getstringsize bug fix shape of numbers draw_num.lua also add auto centering add page scrolling to printtable add a new demo script 'stars' Change-Id: I866905cee82ee89ebc0eb020a56a7ecdb101bf5e
This commit is contained in:
William Wilgus
William Wilgus
parent
7f1b49693c
commit
a6570b7d37
7 changed files with 432 additions and 107 deletions
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@ -20,17 +20,13 @@
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*
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****************************************************************************/
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]]
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--[[ Exposed Functions
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_draw_nums.print; binary (base = 2) , octal (base = 8), hexadecimal (base = 16)
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_draw_nums.nums; table of number characters
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]]
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if not rb.lcd_framebuffer then rb.splash(rb.HZ, "No Support!") return nil end
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local _draw_nums = {} do
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local _poly = require "draw_poly"
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-- every 2 elements is an x, y coord pair
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-- n[?] = {x,y,x,y,x,y}
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local nums = {
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@ -43,11 +39,11 @@ local _draw_nums = {} do
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[2] = {1,1,3,1,4,2,4,3,3,4,1,5,1,7,4,7},
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[3] = {1,1,3,1,4,2,4,3,3,4,2,4,3,4,4,5,4,6,3,7,1,7},
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[4] = {1,1,1,3,2,4,4,4,4,1,4,7},
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[5] = {1,1,4,1,1,1,1,4,3,4,4,5,4,7,1,7},
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[6] = {1,2,1,4,1,6,2,7,3,7,4,6,4,4,1,4,1,2,2,1,4,1},
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[5] = {1,1,4,1,1,1,1,4,3,4,4,5,4,6,3,7,1,7},
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[6] = {1,2,1,4,1,6,2,7,3,7,4,6,4,5,3,4,1,4,1,2,2,1,3,1,4,2},
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[7] = {1,1,4,1,4,2,1,7},
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[8] = {1,2,1,6,2,7,3,7,4,6,4,4,1,4,4,4,4,2,3,1,2,1,1,2},
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[9] = {4,6,4,4,4,2,3,1,2,1,1,2,1,4,4,4,4,6,3,7,1,7},
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[8] = {1,2,4,5,4,6,3,7,2,7,1,6,1,5,4,2,3,1,2,1,1,2},
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[9] = {4,6,4,4,4,2,3,1,2,1,1,2,1,3,2,4,4,4,4,6,3,7,2,7,1,6},
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[10] = {1,7,1,4,4,4,4,7,4,2,3,1,2,1,1,2,1,4},
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[11] = {1,1,1,7,3,7,4,6,4,5,3,4,1,4,3,4,4,3,4,2,3,1,1,1},
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[12] = {4,2,3,1,2,1,1,2,1,6,2,7,3,7,4,6},
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@ -56,8 +52,6 @@ local _draw_nums = {} do
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[15] = {4,1,1,1,1,4,3,4,1,4,1,7},
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}
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_draw_nums.nums = nums
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_draw_nums.print = function(img, num, x, y, chrw, color, base, prefix, bClip, scale_x, scale_y, t_nums)
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scale_x = scale_x or 1
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scale_y = scale_y or 1
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@ -65,7 +59,6 @@ local _draw_nums = {} do
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prefix = (prefix == nil or prefix == true) and true or false
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t_nums = t_nums or nums
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local max_x, max_y, digits = 0, 0, {}
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if num <= 0 then
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if num < 0 then
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digits[-3] = -1
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@ -74,7 +67,6 @@ local _draw_nums = {} do
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digits[0] = 0
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end
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end
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if not prefix and (base == 2 or base == 8 or base == 16) then
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-- no prefix
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elseif base == 2 then
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@ -92,23 +84,20 @@ local _draw_nums = {} do
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error("unknown number base: " .. base)
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return nil
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end
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while num > 0 do -- get each digit (LeastSignificant)
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digits[#digits + 1] = num % base;
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num=num/base;
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end
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digits[#digits + 1] = digits[0] -- zero
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digits[#digits + 1] = digits[-1] -- base prefix
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digits[#digits + 1] = digits[-2] -- base prefix (hex)
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digits[#digits + 1] = digits[-3] -- neg sign
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for i = #digits, 1, -1 do
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max_x, max_y = _poly.polyline(img, x, y, t_nums[digits[i]],
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color, false, bClip, scale_x, scale_y)
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if chrw == 0 then chrw = max_x end
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x = x + chrw
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end
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return x, y + max_y, chrw
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end
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end
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@ -23,7 +23,6 @@
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-- draw text onto image if width/height are supplied text is centered
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if not rb.lcd_framebuffer then rb.splash(rb.HZ, "No Support!") return nil end
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do
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-- Internal Constants
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local rocklib_image = getmetatable(rb.lcd_framebuffer())
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@ -40,81 +39,35 @@ do
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return function(img, x, y, width, height, font, color, text)
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font = font or rb.FONT_UI
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local opts = {x = 0, y = 0, width = LCD_W - 1, height = LCD_H - 1,
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font = font, drawmode = 3, fg_pattern = 0x1, bg_pattern = 0}
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if rb.LCD_DEPTH == 2 then -- invert 2-bit screens
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--vp.drawmode = bit.bxor(vp.drawmode, 4)
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opts.fg_pattern = 3 - opts.fg_pattern
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opts.bg_pattern = 3 - opts.bg_pattern
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end
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rb.set_viewport(opts)
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local res, w, h = rb.font_getstringsize(text, font)
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if not width then
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width = 0
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if rb.lcd_rgbpack ~= _NIL then -- Color target
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rb.set_viewport(img, {fg_pattern = color, font = font, drawmode = 2})--DRMODE_FG
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else
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width = (width - w) / 2
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if color ~= 0 then color = 3 end--DRMODE_SOLID
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rb.set_viewport(img, {font = font, drawmode = color})
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end
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if not height then
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height = 0
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else
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height = (height - h) / 2
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end
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if width or height then
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local res, w, h = rb.font_getstringsize(text, font)
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-- make a copy of the current screen for later
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--local screen_img = _newimg(LCD_W, LCD_H)
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local screen_img = _newimg(LCD_W, h * 2)
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_copy(screen_img, _LCD)
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-- check if the screen buffer is supplied image if so set img to the copy
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if img == _LCD then
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img = screen_img
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end
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-- we will be printing the text to the screen then blitting into img
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--rb.lcd_clear_display()
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_clear(_LCD, opts.bg_pattern or 0, 1, 1, LCD_W, h * 2)
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if w > LCD_W then -- text is too long for the screen do it in chunks
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local l = 1
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local resp, wp, hp
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local lenr = text:len()
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while lenr > 1 do
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l = lenr
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resp, wp, hp = rb.font_getstringsize(text:sub(1, l), font)
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while wp >= LCD_W and l > 1 do
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l = l - 1
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resp, wp, hp = rb.font_getstringsize(text:sub( 1, l), font)
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end
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rb.lcd_putsxy(0, 0, text:sub(1, l))
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text = text:sub(l)
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if x + width > img:width() or y + height > img:height() then
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break
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end
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-- using the mask we made blit color into img
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_copy(img, _LCD, x + width, y + height, _NIL, _NIL, _NIL, _NIL, false, BSAND, color)
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x = x + wp
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--rb.lcd_clear_display()
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_clear(_LCD, opts.bg_pattern or 0, 1, 1, LCD_W, h * 2)
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lenr = text:len()
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if not width then
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width = 0
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else
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width = (width - w) / 2
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end
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else --w <= LCD_W
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rb.lcd_putsxy(0, 0, text)
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-- using the mask we made blit color into img
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_copy(img, _LCD, x + width, y + height, _NIL, _NIL, _NIL, _NIL, false, BSAND, color)
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if not height then
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height = 0
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else
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height = (height - h) / 2
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end
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x = width + x
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y = height + y
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end
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_copy(_LCD, screen_img) -- restore screen
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rb.lcd_putsxy(x, y, text)
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rb.set_viewport() -- set viewport default
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return res, w, h
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end
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@ -198,7 +198,7 @@ do
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end
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-- Bitmap lines start at bottom unless biHeight is negative
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for point in _points(img, 1, h, w + bytesleft, 1) do
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for point in _points(img, 1, h, w + bytesleft, 1, 1, 1, true) do
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imgdata[#imgdata + 1] = fs_bytes_E(bpp, point or 0)
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if #fbuffer >= 31 then -- buffered write, increase # for performance
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@ -145,13 +145,14 @@ function print_table(t, t_count, settings)
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local wrap, justify, start, curpos, co_routine, hasheader, m_sel
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local header_fgc, header_bgc, item_fgc, item_bgc, item_selc
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local table_linedesc, drawsep, overflow, dpad_fn
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local table_linedesc, drawsep, overflow, dpad_fn, pagescroll
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do
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local s = settings or _print.get_settings()
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wrap, justify = s.wrap, s.justify
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start, curpos = s.start, s.curpos
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co_routine = s.co_routine
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hasheader = s.hasheader
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pagescroll = s.pagescroll
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drawsep = s.drawsep
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sb_width = s.sb_width or sb_width
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m_sel = false
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@ -234,8 +235,13 @@ function print_table(t, t_count, settings)
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dpad_fn(t_p.col, -1, -t_p.col_scrl, t_p.row, -1, -t_p.row_scrl,
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nil, overflow, (t_p.row + t_p.vcursor - 1))
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if pagescroll == true then
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t_p.row = t_p.row + y_chg * maxline - 1
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end
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t_p.vcursor = t_p.vcursor + y_chg
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if t_p.vcursor > maxline or t_p.vcursor < t_p.vcursor_min then
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t_p.row = yi
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end
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@ -268,6 +274,7 @@ function print_table(t, t_count, settings)
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elseif y_chg ~= 0 then
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--t_p.col = 0 -- reset column to the beginning
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_print.clear()
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_print.opt.sel_line(t_p.vcursor)
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t_p.row_scrl = set_accel(timeb, t_p.row_scrl, t_p)
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