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393 lines
18 KiB
Lua
393 lines
18 KiB
Lua
local BD = require("ui/bidi")
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local Device = require("device")
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local S = require("ui/data/strings")
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local optionsutil = require("ui/data/optionsutil")
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local _ = require("gettext")
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local Screen = Device.screen
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-- The values used for Font Size are not actually font sizes, but kopt zoom levels.
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local FONT_SCALE_FACTORS = {0.2, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.3, 1.6, 2.0}
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-- Font sizes used for the font size widget only
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local FONT_SCALE_DISPLAY_SIZE = {12, 14, 15, 16, 17, 18, 19, 20, 22, 25, 30, 35}
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-- Get font scale numbers as a table of strings
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local tableOfNumbersToTableOfStrings = function(numbers)
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local t = {}
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for i, v in ipairs(numbers) do
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table.insert(t, string.format("%0.1f", v))
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end
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return t
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end
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local KoptOptions = {
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prefix = 'kopt',
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needs_redraw_on_change = true,
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{
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icon = "resources/icons/appbar.transform.rotate.right.large.png",
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options = {
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{
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name = "screen_mode",
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name_text = S.SCREEN_MODE,
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toggle = {S.PORTRAIT, S.LANDSCAPE},
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alternate = false,
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args = {"portrait", "landscape"},
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default_arg = "portrait",
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current_func = function() return Screen:getScreenMode() end,
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event = "SwapScreenMode",
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name_text_hold_callback = optionsutil.showValues,
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}
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}
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},
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{
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icon = "resources/icons/appbar.crop.large.png",
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options = {
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{
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name = "trim_page",
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name_text = S.PAGE_CROP,
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-- manual=0, auto=1, semi-auto=2, none=3
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-- ordered from least to max cropping done or possible
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toggle = {S.NONE, S.AUTO, S.SEMIAUTO, S.MANUAL},
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alternate = false,
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values = {3, 1, 2, 0},
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default_value = DKOPTREADER_CONFIG_TRIM_PAGE,
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enabled_func = Device.isTouchDevice,
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event = "PageCrop",
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args = {"none", "auto", "semi-auto", "manual"},
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[Allows cropping blank page margins in the original document.
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This might be needed on scanned documents, that may have speckles or fingerprints in the margins, to be able to use zoom to fit content width.
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- 'none' does not cut the original document margins.
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- 'auto' finds content area automatically.
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- 'semi-auto" finds content area automatically, inside some larger area defined manually.
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- 'manual" uses the area defined manually as-is.
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In 'semi-auto' and 'manual' modes, you may need to define areas once on an odd page number, and once on an even page number (these areas will then be used for all odd, or even, page numbers).]]),
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},
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{
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name = "page_margin",
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name_text = S.PAGE_MARGIN,
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toggle = {S.SMALL, S.MEDIUM, S.LARGE},
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values = {0.05, 0.10, 0.25},
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default_value = DKOPTREADER_CONFIG_PAGE_MARGIN,
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event = "MarginUpdate",
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[Set margins to be applied after page-crop and zoom modes are applied.]]),
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},
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}
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},
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{
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icon = "resources/icons/appbar.column.two.large.png",
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options = {
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{
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name = "page_scroll",
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name_text = S.VIEW_MODE,
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toggle = {S.VIEW_PAGE, S.VIEW_SCROLL},
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values = {0, 1},
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default_value = 1,
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event = "SetScrollMode",
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args = {false, true},
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[- 'page' mode shows only one page of the document at a time.
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- 'continuous' mode allows you to scroll the pages like you would in a web browser.]]),
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},
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{
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name = "page_gap_height",
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name_text = S.PAGE_GAP,
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toggle = {S.NONE, S.SMALL, S.MEDIUM, S.LARGE},
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values = {0, 8, 16, 32},
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default_value = 8,
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args = {0, 8, 16, 32},
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event = "PageGapUpdate",
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enabled_func = function (configurable)
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return optionsutil.enableIfEquals(configurable, "page_scroll", 1)
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end,
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[In continuous view mode, sets the thickness of the separator between document pages.]]),
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},
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{
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name = "full_screen",
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name_text = S.PROGRESS_BAR,
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toggle = {S.OFF, S.ON},
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values = {1, 0},
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default_value = 1,
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event = "SetFullScreen",
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args = {true, false},
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show = false, -- toggling bottom status can be done via tap
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name_text_hold_callback = optionsutil.showValues,
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},
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{
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name = "line_spacing",
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name_text = S.LINE_SPACING,
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toggle = {S.SMALL, S.MEDIUM, S.LARGE},
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values = {1.0, 1.2, 1.4},
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default_value = DKOPTREADER_CONFIG_LINE_SPACING,
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advanced = true,
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enabled_func = function(configurable)
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-- seems to only work in reflow mode
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return optionsutil.enableIfEquals(configurable, "text_wrap", 1)
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end,
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[In reflow mode, sets the spacing between lines.]]),
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},
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{
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name = "justification",
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name_text = S.TEXT_ALIGN,
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item_icons = {
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"resources/icons/appbar.align.auto.png",
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"resources/icons/appbar.align.left.png",
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"resources/icons/appbar.align.center.png",
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"resources/icons/appbar.align.right.png",
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"resources/icons/appbar.align.justify.png",
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},
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values = {-1,0,1,2,3},
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default_value = DKOPTREADER_CONFIG_JUSTIFICATION,
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advanced = true,
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enabled_func = function(configurable)
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return optionsutil.enableIfEquals(configurable, "text_wrap", 1)
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end,
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labels = {S.AUTO, S.LEFT, S.CENTER, S.RIGHT, S.JUSTIFY},
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[In reflow mode, sets the text alignment.
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The first option ("auto") tries to automatically align reflowed text as it is in the original document.]]),
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},
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}
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},
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{
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icon = "resources/icons/appbar.text.size.large.png",
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options = {
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{
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name = "font_size",
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item_text = tableOfNumbersToTableOfStrings(FONT_SCALE_FACTORS),
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item_align_center = 1.0,
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spacing = 15,
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height = 60,
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item_font_size = FONT_SCALE_DISPLAY_SIZE,
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args = FONT_SCALE_FACTORS,
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values = FONT_SCALE_FACTORS,
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default_value = DKOPTREADER_CONFIG_FONT_SIZE,
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event = "FontSizeUpdate",
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enabled_func = function(configurable, document)
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if document.is_reflowable then return true end
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return optionsutil.enableIfEquals(configurable, "text_wrap", 1)
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end,
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},
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{
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name = "font_fine_tune",
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name_text = S.FONT_SIZE,
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toggle = Device:isTouchDevice() and {S.DECREASE, S.INCREASE} or nil,
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item_text = not Device:isTouchDevice() and {S.DECREASE, S.INCREASE} or nil,
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values = {-0.05, 0.05},
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default_value = 0.05,
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event = "FineTuningFontSize",
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args = {-0.05, 0.05},
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alternate = false,
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enabled_func = function(configurable, document)
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if document.is_reflowable then return true end
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return optionsutil.enableIfEquals(configurable, "text_wrap", 1)
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end,
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name_text_hold_callback = function(configurable, __, prefix)
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local opt = {
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name = "font_size",
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name_text = _("Font Size"),
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help_text = _([[In reflow mode, sets a font scaling factor that is applied to the original document font sizes.]]),
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}
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optionsutil.showValues(configurable, opt, prefix)
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end,
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},
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{
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name = "word_spacing",
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name_text = S.WORD_GAP,
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toggle = {S.SMALL, S.AUTO, S.LARGE},
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values = DKOPTREADER_CONFIG_WORD_SPACINGS,
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default_value = DKOPTREADER_CONFIG_DEFAULT_WORD_SPACING,
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enabled_func = function(configurable)
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return optionsutil.enableIfEquals(configurable, "text_wrap", 1)
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end,
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[In reflow mode, sets the spacing between words.]]),
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},
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{
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name = "text_wrap",
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name_text = S.REFLOW,
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toggle = {S.OFF, S.ON},
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values = {0, 1},
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default_value = DKOPTREADER_CONFIG_TEXT_WRAP,
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events = {
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{
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event = "RedrawCurrentPage",
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},
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{
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event = "RestoreZoomMode",
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},
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{
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event = "InitScrollPageStates",
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},
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},
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[Reflow mode extracts text and images from the original document, possibly discarding some formatting, and reflows it on the screen for easier reading.
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Some of the other settings are only available when reflow mode is enabled.]]),
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},
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}
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},
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{
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icon = "resources/icons/appbar.grade.b.large.png",
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options = {
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{
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name = "contrast",
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name_text = S.CONTRAST,
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buttonprogress = true,
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-- See https://github.com/koreader/koreader/issues/1299#issuecomment-65183895
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-- For pdf reflowing mode (kopt_contrast):
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values = {1/0.8, 1/1.0, 1/1.5, 1/2.0, 1/4.0, 1/6.0, 1/10.0, 1/50.0},
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default_pos = 2,
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default_value = DKOPTREADER_CONFIG_CONTRAST,
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event = "GammaUpdate",
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-- For pdf non-reflowing mode (mupdf):
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args = {0.8, 1.0, 1.5, 2.0, 4.0, 6.0, 10.0, 50.0},
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labels = {0.8, 1.0, 1.5, 2.0, 4.0, 6.0, 10.0, 50.0},
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name_text_hold_callback = optionsutil.showValues,
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},
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{
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name = "page_opt",
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name_text = S.DEWATERMARK,
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toggle = {S.OFF, S.ON},
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values = {0, 1},
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default_value = 0,
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[Remove watermarks from the rendered document.
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This can also be used to remove some gray background or to convert a grayscale or color document to black & white and get more contrast for easier reading.]]),
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},
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{
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name = "hw_dithering",
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name_text = S.HW_DITHERING,
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toggle = {S.OFF, S.ON},
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values = {0, 1},
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default_value = 0,
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advanced = true,
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show = Device:hasEinkScreen() and Device:canHWDither(),
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[Enable Hardware dithering.]]),
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},
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{
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name = "quality",
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name_text = S.RENDER_QUALITY,
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toggle = {S.LOW, S.DEFAULT, S.HIGH},
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values={0.5, 1.0, 1.5},
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default_value = DKOPTREADER_CONFIG_RENDER_QUALITY,
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advanced = true,
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enabled_func = function(configurable)
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return optionsutil.enableIfEquals(configurable, "text_wrap", 1)
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end,
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[In reflow mode, sets the quality of the text and image extraction processing and output.]]),
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},
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}
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},
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{
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icon = "resources/icons/appbar.settings.large.png",
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options = {
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{
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name="doc_language",
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name_text = S.DOC_LANG,
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toggle = DKOPTREADER_CONFIG_DOC_LANGS_TEXT,
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values = DKOPTREADER_CONFIG_DOC_LANGS_CODE,
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default_value = DKOPTREADER_CONFIG_DOC_DEFAULT_LANG_CODE,
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event = "DocLangUpdate",
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args = DKOPTREADER_CONFIG_DOC_LANGS_CODE,
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[Set the language to be used by the OCR engine.]]),
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},
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{
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name = "forced_ocr",
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name_text = S.FORCED_OCR,
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toggle = {S.OFF, S.ON},
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values = {0, 1},
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default_value = 0,
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advanced = true,
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[Force the use of OCR for text selection, even if the document has a text layer.]]),
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},
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{
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name = "writing_direction",
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name_text = S.WRITING_DIR,
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toggle = {S.LTR, S.RTL, S.TBRTL},
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values = {0, 1, 2},
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default_value = 0,
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enabled_func = function(configurable)
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return optionsutil.enableIfEquals(configurable, "text_wrap", 1)
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end,
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[In reflow mode, sets the original text direction. This needs to be set to RTL to correctly extract and reflow RTL languages like Arabic or Hebrew.]]),
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},
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{
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name = "defect_size",
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name_text = S.DEFECT_SIZE,
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toggle = {S.SMALL, S.MEDIUM, S.LARGE},
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values = {1.0, 3.0, 5.0},
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default_value = DKOPTREADER_CONFIG_DEFECT_SIZE,
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event = "DefectSizeUpdate",
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show = false, -- might work somehow, but larger values than 1.0 might easily eat content
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enabled_func = function(configurable)
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return optionsutil.enableIfEquals(configurable, "text_wrap", 1)
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end,
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name_text_hold_callback = optionsutil.showValues,
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},
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{
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name = "auto_straighten",
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name_text = S.AUTO_STRAIGHTEN,
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toggle = {S.ZERO_DEG, S.FIVE_DEG, S.TEN_DEG},
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values = {0, 5, 10},
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default_value = DKOPTREADER_CONFIG_AUTO_STRAIGHTEN,
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show = false, -- does not work (and slows rendering)
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enabled_func = function(configurable)
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return optionsutil.enableIfEquals(configurable, "text_wrap", 1)
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end,
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name_text_hold_callback = optionsutil.showValues,
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},
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{
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name = "detect_indent",
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name_text = S.INDENTATION,
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toggle = {S.OFF, S.ON},
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values = {0, 1},
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default_value = DKOPTREADER_CONFIG_DETECT_INDENT,
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show = false, -- does not work
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enabled_func = function(configurable)
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return optionsutil.enableIfEquals(configurable, "text_wrap", 1)
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end,
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name_text_hold_callback = optionsutil.showValues,
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},
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{
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name = "max_columns",
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name_text = S.DOCUMENT_COLUMNS,
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item_icons = {
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"resources/icons/appbar.column.one.png",
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"resources/icons/appbar.column.two.png",
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"resources/icons/appbar.column.three.png",
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},
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values = {1,2,3},
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default_value = DKOPTREADER_CONFIG_MAX_COLUMNS,
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enabled_func = function(configurable)
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return optionsutil.enableIfEquals(configurable, "text_wrap", 1)
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end,
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[In reflow mode, sets the max number of columns to try to detect in the original document.
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You might need to set it to 1 column if, in a full width document, text is incorrectly detected as multiple columns because of unlucky word spacing.]]),
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},
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}
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},
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}
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if BD.mirroredUILayout() then
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-- The justification items {AUTO, LEFT, CENTER, RIGHT, JUSTIFY} will
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-- be mirrored - but that's not enough: we need to swap LEFT and RIGHT,
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-- so they appear in a more expected and balanced order to RTL users:
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-- {JUSTIFY, LEFT, CENTER, RIGHT, AUTO}
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local j = KoptOptions[3].options[5]
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assert(j.name == "justification")
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j.item_icons[2], j.item_icons[4] = j.item_icons[4], j.item_icons[2]
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j.values[2], j.values[4] = j.values[4], j.values[2]
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j.labels[2], j.labels[4] = j.labels[4], j.labels[2]
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end
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return KoptOptions
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