mirror of
https://github.com/koreader/koreader
synced 2024-11-16 06:12:56 +00:00
700 lines
33 KiB
Lua
700 lines
33 KiB
Lua
local Device = require("device")
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local Screen = Device.screen
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local optionsutil = require("ui/data/optionsutil")
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local _ = require("gettext")
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local C_ = _.pgettext
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local T = require("ffi/util").template
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-- Get font size 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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-- We turn 17.5 into 17<sup>5</sup>
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table.insert(t, tostring(v%1==0 and v or (v-v%1).."⁵"))
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end
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return t
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end
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-- OS/2 weight classes map
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-- c.f., https://docs.microsoft.com/en-us/typography/opentype/spec/os2#usweightclass
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local usWeightClass = {
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[100] = C_("Font weight class", "Thin"),
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[200] = C_("Font weight class", "Extra-light"),
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[300] = C_("Font weight class", "Light"),
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[400] = C_("Font weight class", "Regular"),
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[500] = C_("Font weight class", "Medium"),
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[600] = C_("Font weight class", "Semi-bold"),
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[700] = C_("Font weight class", "Bold"),
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[800] = C_("Font weight class", "Extra-bold"),
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[900] = C_("Font weight class", "Black"),
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}
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local function weightClassToString(weight)
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if usWeightClass[weight] then
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return T(_("%1 (%2)"), usWeightClass[weight], weight)
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else
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return tostring(weight)
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end
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end
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local function prettifyCreWeights(t)
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local p = {}
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for __, v in ipairs(t) do
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table.insert(p, weightClassToString(v))
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end
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return p
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end
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local CreOptions = {
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prefix = "copt",
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{
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icon = "appbar.rotation",
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options = {
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{
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name = "rotation_mode",
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name_text = _("Rotation"),
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item_icons_func = function()
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if Screen:getRotationMode() == Screen.ORIENTATION_PORTRAIT then
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-- P, 0UR
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return {
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"rotation.P.90CCW",
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"rotation.P.0UR",
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"rotation.P.90CW",
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"rotation.P.180UD",
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}
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elseif Screen:getRotationMode() == Screen.ORIENTATION_PORTRAIT_ROTATED then
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-- P, 180UD
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return {
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"rotation.P.90CW",
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"rotation.P.180UD",
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"rotation.P.90CCW",
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"rotation.P.0UR",
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}
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elseif Screen:getRotationMode() == Screen.ORIENTATION_LANDSCAPE then
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-- L, 90CW
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return {
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"rotation.L.90CCW",
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"rotation.L.0UR",
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"rotation.L.90CW",
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"rotation.L.180UD",
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}
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else
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-- L, 90CCW
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return {
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"rotation.L.90CW",
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"rotation.L.180UD",
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"rotation.L.90CCW",
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"rotation.L.0UR",
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}
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end
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end,
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-- For Dispatcher & onMakeDefault's sake
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labels = {C_("Rotation", "⤹ 90°"), C_("Rotation", "↑ 0°"), C_("Rotation", "⤸ 90°"), C_("Rotation", "↓ 180°")},
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alternate = false,
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values = {Screen.ORIENTATION_LANDSCAPE_ROTATED, Screen.ORIENTATION_PORTRAIT, Screen.ORIENTATION_LANDSCAPE, Screen.ORIENTATION_PORTRAIT_ROTATED},
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args = {Screen.ORIENTATION_LANDSCAPE_ROTATED, Screen.ORIENTATION_PORTRAIT, Screen.ORIENTATION_LANDSCAPE, Screen.ORIENTATION_PORTRAIT_ROTATED},
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default_arg = 0,
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current_func = function() return Screen:getRotationMode() end,
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event = "SetRotationMode",
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name_text_hold_callback = optionsutil.showValues,
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},
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{
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name = "visible_pages",
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name_text = _("Two Columns"),
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toggle = {_("off"), _("on")},
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values = {1, 2},
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default_value = 1,
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args = {1, 2},
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default_arg = 1,
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event = "SetVisiblePages",
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--[[ Commented out, to have it also available in portrait mode
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current_func = function()
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-- If not in landscape mode, shows "1" as selected
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if Screen:getScreenMode() ~= "landscape" then
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return 1
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end
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-- if we return nil, ConfigDialog will pick the one from the
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-- configurable as if we hadn't provided this 'current_func'
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end,
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]]--
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enabled_func = function(configurable)
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return optionsutil.enableIfEquals(configurable, "view_mode", 0) -- "page" mode
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-- and Screen:getScreenMode() == "landscape"
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end,
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[Render the document on half the screen width and display two pages at once with a single page number. This makes it look like two columns.
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This is disabled in scroll mode. Switching from page mode with two columns to scroll mode will cause the document to be re-rendered.]]),
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},
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}
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},
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{
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icon = "appbar.crop",
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options = {
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{
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name = "h_page_margins",
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name_text = _("L/R Margins"),
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buttonprogress = true,
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values = {
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DCREREADER_CONFIG_H_MARGIN_SIZES_SMALL,
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DCREREADER_CONFIG_H_MARGIN_SIZES_MEDIUM,
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DCREREADER_CONFIG_H_MARGIN_SIZES_LARGE,
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DCREREADER_CONFIG_H_MARGIN_SIZES_X_LARGE,
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DCREREADER_CONFIG_H_MARGIN_SIZES_XX_LARGE,
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DCREREADER_CONFIG_H_MARGIN_SIZES_XXX_LARGE,
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DCREREADER_CONFIG_H_MARGIN_SIZES_HUGE,
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DCREREADER_CONFIG_H_MARGIN_SIZES_X_HUGE,
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DCREREADER_CONFIG_H_MARGIN_SIZES_XX_HUGE,
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},
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default_pos = 2,
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default_value = DCREREADER_CONFIG_H_MARGIN_SIZES_MEDIUM,
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event = "SetPageHorizMargins",
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args = {
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DCREREADER_CONFIG_H_MARGIN_SIZES_SMALL,
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DCREREADER_CONFIG_H_MARGIN_SIZES_MEDIUM,
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DCREREADER_CONFIG_H_MARGIN_SIZES_LARGE,
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DCREREADER_CONFIG_H_MARGIN_SIZES_X_LARGE,
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DCREREADER_CONFIG_H_MARGIN_SIZES_XX_LARGE,
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DCREREADER_CONFIG_H_MARGIN_SIZES_XXX_LARGE,
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DCREREADER_CONFIG_H_MARGIN_SIZES_HUGE,
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DCREREADER_CONFIG_H_MARGIN_SIZES_X_HUGE,
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DCREREADER_CONFIG_H_MARGIN_SIZES_XX_HUGE,
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},
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hide_on_apply = true,
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name_text_hold_callback = optionsutil.showValuesHMargins,
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more_options = true,
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more_options_param = {
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name_text = _("Left/Right Margins"),
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widget_width_factor = 0.6,
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left_min = 0,
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left_max = 140,
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left_step = 1,
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left_hold_step = 5,
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right_min = 0,
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right_max = 140,
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right_step = 1,
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right_hold_step = 5,
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},
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},
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{
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name = "sync_t_b_page_margins",
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name_text = _("Sync T/B Margins"),
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toggle = {_("off"), _("on")},
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values = {0, 1},
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default_value = 0,
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event = "SyncPageTopBottomMargins",
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args = {false, true},
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default_arg = false,
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hide_on_apply = true,
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[Keep top and bottom margins synchronized.
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- 'off' allows different top and bottom margins.
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- 'on' keeps top and bottom margins locked, ensuring text is vertically centered in the page.
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In the top menu → Settings → Status bar, you can choose whether the bottom margin applies from the bottom of the screen, or from above the status bar.]]),
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},
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{
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name = "t_page_margin",
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name_text = _("Top Margin"),
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buttonprogress = true,
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values = {
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DCREREADER_CONFIG_T_MARGIN_SIZES_SMALL,
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DCREREADER_CONFIG_T_MARGIN_SIZES_MEDIUM,
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DCREREADER_CONFIG_T_MARGIN_SIZES_LARGE,
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DCREREADER_CONFIG_T_MARGIN_SIZES_X_LARGE,
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DCREREADER_CONFIG_T_MARGIN_SIZES_XX_LARGE,
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DCREREADER_CONFIG_T_MARGIN_SIZES_XXX_LARGE,
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DCREREADER_CONFIG_T_MARGIN_SIZES_HUGE,
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DCREREADER_CONFIG_T_MARGIN_SIZES_X_HUGE,
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DCREREADER_CONFIG_T_MARGIN_SIZES_XX_HUGE,
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},
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default_pos = 3,
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default_value = DCREREADER_CONFIG_T_MARGIN_SIZES_LARGE,
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event = "SetPageTopMargin",
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args = {
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DCREREADER_CONFIG_T_MARGIN_SIZES_SMALL,
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DCREREADER_CONFIG_T_MARGIN_SIZES_MEDIUM,
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DCREREADER_CONFIG_T_MARGIN_SIZES_LARGE,
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DCREREADER_CONFIG_T_MARGIN_SIZES_X_LARGE,
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DCREREADER_CONFIG_T_MARGIN_SIZES_XX_LARGE,
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DCREREADER_CONFIG_T_MARGIN_SIZES_XXX_LARGE,
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DCREREADER_CONFIG_T_MARGIN_SIZES_HUGE,
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DCREREADER_CONFIG_T_MARGIN_SIZES_X_HUGE,
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DCREREADER_CONFIG_T_MARGIN_SIZES_XX_HUGE,
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},
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hide_on_apply = true,
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name_text_hold_callback = optionsutil.showValues,
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more_options = true,
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more_options_param = {
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-- Allow this to tune both top and bottom margins, handling
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-- 2 setting names (we'll get the exact same DoubleSpinWidget
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-- in the b_page_margin setting just below)
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name_text = _("Top/Bottom Margins"),
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names = { "t_page_margin", "b_page_margin" },
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event = "SetPageTopAndBottomMargin",
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widget_width_factor = 0.6,
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left_text = _("Top"),
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left_min = 0,
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left_max = 140,
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left_step = 1,
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left_hold_step = 5,
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right_text = _("Bottom"),
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right_min = 0,
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right_max = 140,
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right_step = 1,
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right_hold_step = 5,
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},
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},
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{
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name = "b_page_margin",
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name_text = _("Bottom Margin"),
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buttonprogress = true,
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values = {
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DCREREADER_CONFIG_B_MARGIN_SIZES_SMALL,
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DCREREADER_CONFIG_B_MARGIN_SIZES_MEDIUM,
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DCREREADER_CONFIG_B_MARGIN_SIZES_LARGE,
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DCREREADER_CONFIG_B_MARGIN_SIZES_X_LARGE,
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DCREREADER_CONFIG_B_MARGIN_SIZES_XX_LARGE,
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DCREREADER_CONFIG_B_MARGIN_SIZES_XXX_LARGE,
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DCREREADER_CONFIG_B_MARGIN_SIZES_HUGE,
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DCREREADER_CONFIG_B_MARGIN_SIZES_X_HUGE,
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DCREREADER_CONFIG_B_MARGIN_SIZES_XX_HUGE,
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},
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default_pos = 3,
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default_value = DCREREADER_CONFIG_B_MARGIN_SIZES_LARGE,
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event = "SetPageBottomMargin",
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args = {
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DCREREADER_CONFIG_B_MARGIN_SIZES_SMALL,
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DCREREADER_CONFIG_B_MARGIN_SIZES_MEDIUM,
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DCREREADER_CONFIG_B_MARGIN_SIZES_LARGE,
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DCREREADER_CONFIG_B_MARGIN_SIZES_X_LARGE,
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DCREREADER_CONFIG_B_MARGIN_SIZES_XX_LARGE,
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DCREREADER_CONFIG_B_MARGIN_SIZES_XXX_LARGE,
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DCREREADER_CONFIG_B_MARGIN_SIZES_HUGE,
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DCREREADER_CONFIG_B_MARGIN_SIZES_X_HUGE,
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DCREREADER_CONFIG_B_MARGIN_SIZES_XX_HUGE,
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},
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hide_on_apply = true,
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[In the top menu → Settings → Status bar, you can choose whether the bottom margin applies from the bottom of the screen, or from above the status bar.]]),
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more_options = true,
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more_options_param = {
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-- Similar as for t_page_margin above
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name_text = _("Top/Bottom Margins"),
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names = { "t_page_margin", "b_page_margin" },
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event = "SetPageTopAndBottomMargin",
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widget_width_factor = 0.6,
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left_text = _("Top"),
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left_min = 0,
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left_max = 140,
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left_step = 1,
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left_hold_step = 5,
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right_text = _("Bottom"),
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right_min = 0,
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right_max = 140,
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right_step = 1,
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right_hold_step = 5,
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},
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},
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}
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},
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{
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icon = "appbar.pageview",
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options = {
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{
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name = "view_mode",
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name_text = _("View Mode"),
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toggle = {_("page"), _("continuous")},
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values = {0, 1},
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default_value = 0,
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args = {"page", "scroll"},
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default_arg = "page",
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event = "SetViewMode",
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[- 'page' mode splits the text into pages, at the most acceptable places (page numbers and the number of pages may change when you change fonts, margins, styles, etc.).
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- 'continuous' mode allows you to scroll the text like you would in a web browser (the 'Page Overlap' setting is only available in this mode).]]),
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},
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{
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name = "block_rendering_mode",
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name_text = _("Render Mode"),
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toggle = {_("legacy"), _("flat"), _("book"), _("web")},
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values = {0, 1, 2, 3},
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default_value = 2,
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args = {0, 1, 2, 3},
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default_arg = 2,
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event = "SetBlockRenderingMode",
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[
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- 'legacy' uses original CR3 block rendering code.
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- 'flat' ensures flat rendering with collapsing margins and accurate page breaks.
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- 'book' additionally allows floats, but limits style support to avoid blank spaces and overflows.
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- 'web' renders as web browsers do, allowing negative margins and possible page overflow.]]),
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},
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{
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name = "render_dpi",
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name_text = _("Zoom (dpi)"),
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more_options = true,
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more_options_param = {
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value_hold_step = 20,
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},
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toggle = {_("off"), "48", "96¹’¹", "167", "212", "300"},
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values = {0, 48, 96, 167, 212, 300},
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default_value = 96,
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args = {0, 48, 96, 167, 212, 300},
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event = "SetRenderDPI",
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name_text_hold_callback = optionsutil.showValues,
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help_text = _([[Sets the DPI used to scale absolute CSS units and images:
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- off: ignore absolute units (old engine behavior).
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- 96¹’¹: at 96 DPI, 1 CSS pixel = 1 screen pixel and images are rendered at their original dimensions.
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- other values scale CSS absolute units and images by a factor (300 DPI = x3, 48 DPI = x0.5)
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Using your device's actual DPI will ensure 1 cm in CSS actually translates to 1 cm on screen.
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Note that your selected font size is not affected by this setting.]]),
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},
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{
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name = "line_spacing",
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name_text = _("Line Spacing"),
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buttonprogress = true,
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values = {
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_TINY,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_TINY,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_XX_SMALL,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_SMALL,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_SMALL,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_L_SMALL,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_MEDIUM,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_L_MEDIUM,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_XL_MEDIUM,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_XXL_MEDIUM,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_LARGE,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_LARGE,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_XX_LARGE,
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},
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default_pos = 7,
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default_value = DCREREADER_CONFIG_LINE_SPACE_PERCENT_MEDIUM,
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more_options = true,
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more_options_param = {
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value_min = 50,
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value_max = 300,
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value_step = 1,
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value_hold_step = 5,
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},
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event = "SetLineSpace",
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args = {
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_TINY,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_TINY,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_XX_SMALL,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_SMALL,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_SMALL,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_L_SMALL,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_MEDIUM,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_L_MEDIUM,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_XL_MEDIUM,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_XXL_MEDIUM,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_LARGE,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_X_LARGE,
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DCREREADER_CONFIG_LINE_SPACE_PERCENT_XX_LARGE,
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},
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name_text_hold_callback = optionsutil.showValues,
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-- used by showValues
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name_text_true_values = true,
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show_true_value_func = function(val) -- add "%"
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return string.format("%d%%", val)
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end,
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},
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}
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},
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{
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icon = "appbar.textsize",
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options = {
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{
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name = "font_size",
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alt_name_text = _("Font Size"),
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item_text = tableOfNumbersToTableOfStrings(DCREREADER_CONFIG_FONT_SIZES),
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item_align_center = 1.0,
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spacing = 15,
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item_font_size = DCREREADER_CONFIG_FONT_SIZES,
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values = DCREREADER_CONFIG_FONT_SIZES,
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default_value = DCREREADER_CONFIG_DEFAULT_FONT_SIZE,
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args = DCREREADER_CONFIG_FONT_SIZES,
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event = "SetFontSize",
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},
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{
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name = "font_fine_tune",
|
||
name_text = _("Font Size"),
|
||
toggle = Device:isTouchDevice() and {_("decrease"), _("increase")} or nil,
|
||
item_text = not Device:isTouchDevice() and {_("decrease"), _("increase")} or nil,
|
||
more_options = true,
|
||
more_options_param = {
|
||
value_min = 12,
|
||
value_max = 255,
|
||
value_step = 0.5,
|
||
precision = "%.1f",
|
||
value_hold_step = 4,
|
||
name = "font_size",
|
||
name_text = _("Font Size"),
|
||
event = "SetFontSize",
|
||
},
|
||
values = {},
|
||
event = "ChangeSize",
|
||
args = { -0.5, 0.5 },
|
||
alternate = false,
|
||
name_text_hold_callback = function(configurable, __, prefix)
|
||
local opt = {
|
||
name = "font_size",
|
||
name_text = _("Font Size"),
|
||
}
|
||
optionsutil.showValues(configurable, opt, prefix)
|
||
end,
|
||
},
|
||
{
|
||
name = "word_spacing",
|
||
name_text = _("Word Spacing"),
|
||
more_options = true,
|
||
more_options_param = {
|
||
name = "word_spacing",
|
||
name_text = _("Word spacing"),
|
||
info_text = _([[Set word spacing percentages:
|
||
- how much to scale the width of each space character from its regular width,
|
||
- by how much some of them can then be reduced to make more words fit on a line.]]),
|
||
left_text = _("Scaling %"),
|
||
left_min = 10,
|
||
left_max = 500,
|
||
left_step = 1,
|
||
left_hold_step = 10,
|
||
right_text = _("Reduction %"),
|
||
right_min = 25,
|
||
right_max = 100,
|
||
right_step = 1,
|
||
right_hold_step = 10,
|
||
event = "SetWordSpacing",
|
||
},
|
||
toggle = {C_("Word spacing", "small"), C_("Word spacing", "medium"), C_("Word spacing", "large")},
|
||
values = {
|
||
DCREREADER_CONFIG_WORD_SPACING_SMALL,
|
||
DCREREADER_CONFIG_WORD_SPACING_MEDIUM,
|
||
DCREREADER_CONFIG_WORD_SPACING_LARGE,
|
||
},
|
||
default_value = DCREREADER_CONFIG_WORD_SPACING_MEDIUM,
|
||
args = {
|
||
DCREREADER_CONFIG_WORD_SPACING_SMALL,
|
||
DCREREADER_CONFIG_WORD_SPACING_MEDIUM,
|
||
DCREREADER_CONFIG_WORD_SPACING_LARGE,
|
||
},
|
||
event = "SetWordSpacing",
|
||
help_text = _([[Tells the rendering engine by how much to scale the width of each 'space' character in the text from its regular width, and by how much it can additionally reduce them to make more words fit on a line (100% means no reduction).]]),
|
||
name_text_hold_callback = optionsutil.showValues,
|
||
name_text_true_values = true,
|
||
show_true_value_func = function(val)
|
||
return string.format("%d%%, %d%%", val[1], val[2])
|
||
end,
|
||
},
|
||
{
|
||
name = "word_expansion",
|
||
name_text = _("Word Expansion"),
|
||
more_options = true,
|
||
more_options_param = {
|
||
value_min = 0,
|
||
value_max = 20,
|
||
value_step = 1,
|
||
value_hold_step = 4,
|
||
name = "word_expansion",
|
||
name_text = _("Max word expansion"),
|
||
info_text = _([[Set max word expansion as a % of the font size.]]),
|
||
event = "SetWordExpansion",
|
||
},
|
||
toggle = {C_("Word expansion", "none"), C_("Word expansion", "some"), C_("Word expansion", "more")},
|
||
values = {
|
||
DCREREADER_CONFIG_WORD_EXPANSION_NONE,
|
||
DCREREADER_CONFIG_WORD_EXPANSION_SOME,
|
||
DCREREADER_CONFIG_WORD_EXPANSION_MORE,
|
||
},
|
||
default_value = DCREREADER_CONFIG_WORD_EXPANSION_NONE,
|
||
args = {
|
||
DCREREADER_CONFIG_WORD_EXPANSION_NONE,
|
||
DCREREADER_CONFIG_WORD_EXPANSION_SOME,
|
||
DCREREADER_CONFIG_WORD_EXPANSION_MORE,
|
||
},
|
||
event = "SetWordExpansion",
|
||
help_text = _([[On justified lines having too wide spaces, allow distributing the excessive space into words by expanding them with letter spacing. This sets the max allowed letter spacing as a % of the font size.]]),
|
||
name_text_hold_callback = optionsutil.showValues,
|
||
name_text_true_values = true,
|
||
show_true_value_func = function(val)
|
||
return string.format("%d%%", val)
|
||
end,
|
||
},
|
||
}
|
||
},
|
||
{
|
||
icon = "appbar.contrast",
|
||
options = {
|
||
{
|
||
name = "font_gamma",
|
||
name_text = _("Contrast"),
|
||
buttonprogress = true,
|
||
default_value = 15, -- gamma = 1.0
|
||
default_pos = 2,
|
||
values = {10, 15, 25, 30, 36, 43, 49, 56},
|
||
event = "SetFontGamma",
|
||
args = {10, 15, 25, 30, 36, 43, 49, 56},
|
||
-- gamma values for these indexes are:
|
||
labels = {0.8, 1.0, 1.45, 1.90, 2.50, 4.0, 8.0, 15.0},
|
||
name_text_hold_callback = optionsutil.showValues,
|
||
more_options = true,
|
||
more_options_param = {
|
||
-- values table taken from crengine/crengine/Tools/GammaGen/gammagen.cpp
|
||
value_table = { 0.3, 0.35, 0.4, 0.45, 0.5, 0.55, 0.6, 0.65, 0.7, 0.75, 0.8, 0.85, 0.9,
|
||
0.95, 0.98, 1, 1.02, 1.05, 1.1, 1.15, 1.2, 1.25, 1.3, 1.35, 1.4, 1.45,
|
||
1.5, 1.6, 1.7, 1.8, 1.9, 2, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9,
|
||
3, 3.5, 4, 4.5, 5, 5.5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
|
||
args_table = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12,
|
||
13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25,
|
||
26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 29, 40,
|
||
41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56 };
|
||
value_step = 1,
|
||
},
|
||
},
|
||
{
|
||
name = "font_base_weight",
|
||
name_text = _("Font Weight"),
|
||
toggle = { "-1", "-½", "0", "+½", "+1", "+1½", "+3" },
|
||
values = { -1, -0.5, 0, 0.5, 1, 1.5, 3 },
|
||
args = { -1, -0.5, 0, 0.5, 1, 1.5, 3 },
|
||
default_value = 0,
|
||
event = "SetFontBaseWeight",
|
||
more_options = true,
|
||
more_options_param = {
|
||
value_min = -3,
|
||
value_max = 5.5,
|
||
value_step = 0.25,
|
||
precision = "%+.2f",
|
||
value_hold_step = 1,
|
||
},
|
||
help_text = _([[Set the font weight delta from "regular" to apply to all fonts.
|
||
|
||
- 0 will use the "Regular (400)" variation of a font.
|
||
- +1 will use the "Medium (500)" variation of a font if available.
|
||
- +3 will use the "Bold (700)" variation of a font if available.
|
||
If a font variation is not available, as well as for fractional adjustments, it will be synthesized from the nearest available weight.]]),
|
||
help_text_func = function(configurable, document)
|
||
local font_face = document:getFontFace()
|
||
local available_weights = prettifyCreWeights(cre.getFontFaceAvailableWeights(font_face))
|
||
return T(_("The default font '%1' provides the following weight classes: %2."), font_face, table.concat(available_weights, C_("List separator", ", ")))
|
||
end,
|
||
name_text_hold_callback = optionsutil.showValues,
|
||
name_text_true_values = true,
|
||
show_true_value_func = function(val)
|
||
return weightClassToString(400+val*100)
|
||
end,
|
||
},
|
||
{
|
||
name = "font_hinting",
|
||
name_text = _("Font Hinting"),
|
||
toggle = {C_("Font hinting", "off"), C_("Font hinting", "native"), C_("Font hinting", "auto")},
|
||
values = {0, 1, 2},
|
||
default_value = 2,
|
||
args = {0, 1, 2},
|
||
event = "SetFontHinting",
|
||
name_text_hold_callback = optionsutil.showValues,
|
||
help_text = _([[Font hinting is the process by which fonts are adjusted for maximum readability on the screen's pixel grid.
|
||
|
||
- off: no hinting.
|
||
- native: use the font internal hinting instructions.
|
||
- auto: use FreeType's hinting algorithm, ignoring font instructions.]]),
|
||
},
|
||
{
|
||
name = "font_kerning",
|
||
name_text = _("Font Kerning"),
|
||
toggle = {_("off"), _("fast"), _("good"), _("best")},
|
||
values = {0, 1, 2, 3},
|
||
default_value = 3,
|
||
args = {0, 1, 2, 3},
|
||
event = "SetFontKerning",
|
||
name_text_hold_callback = optionsutil.showValues,
|
||
help_text = _([[Font kerning is the process of adjusting the spacing between individual letter forms, to achieve a visually pleasing result.
|
||
|
||
- off: no kerning.
|
||
- fast: use FreeType's kerning implementation (no ligatures).
|
||
- good: use HarfBuzz's light kerning implementation (faster than best but no ligatures and limited support for non-western scripts)
|
||
- best: use HarfBuzz's full kerning implementation (slower, but may support ligatures with some fonts; also needed to properly display joined arabic glyphs and some other scripts).
|
||
|
||
(Font Hinting may need to be adjusted for the best result with either kerning implementation.)]]),
|
||
},
|
||
}
|
||
},
|
||
{
|
||
icon = "appbar.settings",
|
||
options = {
|
||
{
|
||
name = "status_line",
|
||
name_text = _("Alt Status Bar"),
|
||
toggle = {_("off"), _("on")},
|
||
values = {1, 0}, -- Note that 0 means crengine header status line enabled, and 1 means disabled
|
||
default_value = 1,
|
||
args = {1, 0},
|
||
default_arg = 1,
|
||
event = "SetStatusLine",
|
||
name_text_hold_callback = optionsutil.showValues,
|
||
help_text = _([[Enable or disable the rendering engine alternative status bar at the top of the screen. The items displayed can be customized via the main menu.
|
||
|
||
Whether enabled or disabled, KOReader's own status bar at the bottom of the screen can be toggled by tapping.]]),
|
||
},
|
||
{
|
||
name = "embedded_css",
|
||
name_text = _("Embedded Style"),
|
||
toggle = {_("off"), _("on")},
|
||
values = {0, 1},
|
||
default_value = 1,
|
||
args = {false, true},
|
||
default_arg = nil,
|
||
event = "ToggleEmbeddedStyleSheet",
|
||
name_text_hold_callback = optionsutil.showValues,
|
||
help_text = _([[Enable or disable publisher stylesheets embedded in the book.
|
||
(Note that less radical changes can be achieved via Style Tweaks in the main menu.)]]),
|
||
},
|
||
{
|
||
name = "embedded_fonts",
|
||
name_text = _("Embedded Fonts"),
|
||
toggle = {_("off"), _("on")},
|
||
values = {0, 1},
|
||
default_value = 1,
|
||
args = {false, true},
|
||
default_arg = nil,
|
||
event = "ToggleEmbeddedFonts",
|
||
enabled_func = function(configurable)
|
||
return optionsutil.enableIfEquals(configurable, "embedded_css", 1)
|
||
end,
|
||
name_text_hold_callback = optionsutil.showValues,
|
||
help_text = _([[Enable or disable the use of the fonts embedded in the book.
|
||
(Disabling the fonts specified in the publisher stylesheets can also be achieved via Style Tweaks in the main menu.)]]),
|
||
},
|
||
{
|
||
name = "smooth_scaling",
|
||
name_text = _("Image Scaling"),
|
||
toggle = {_("fast"), _("best")},
|
||
values = {0, 1},
|
||
default_value = 0,
|
||
args = {false, true},
|
||
default_arg = nil,
|
||
event = "ToggleImageScaling",
|
||
name_text_hold_callback = optionsutil.showValues,
|
||
help_text = _([[- 'fast' uses a fast but inaccurate scaling algorithm when scaling images.
|
||
- 'best' switches to a more costly but vastly more pleasing and accurate algorithm.]]),
|
||
},
|
||
{
|
||
name = "nightmode_images",
|
||
name_text = _("Invert Images"),
|
||
toggle = {_("on"), _("off")},
|
||
values = {1, 0},
|
||
default_value = 1,
|
||
args = {true, false},
|
||
default_arg = nil,
|
||
event = "ToggleNightmodeImages",
|
||
show_func = function() return Screen.night_mode end,
|
||
name_text_hold_callback = optionsutil.showValues,
|
||
help_text = _([[Disable the automagic inversion of images when nightmode is enabled. Useful if your book contains mainly inlined mathematical content or scene break art.]]),
|
||
},
|
||
},
|
||
},
|
||
}
|
||
|
||
return CreOptions
|