mirror of
https://github.com/koreader/koreader
synced 2024-10-31 21:20:20 +00:00
abbb3ea747
Should allow us to get at the full 12 to 30 range when scaled on a 300dpi device (29 -> 72 or 26 -> 64 w/ a dpi override).
427 lines
15 KiB
Lua
427 lines
15 KiB
Lua
local CenterContainer = require("ui/widget/container/centercontainer")
|
||
local ConfirmBox = require("ui/widget/confirmbox")
|
||
local Device = require("device")
|
||
local Event = require("ui/event")
|
||
local Input = Device.input
|
||
local InputContainer = require("ui/widget/container/inputcontainer")
|
||
local Menu = require("ui/widget/menu")
|
||
local MultiConfirmBox = require("ui/widget/multiconfirmbox")
|
||
local Notification = require("ui/widget/notification")
|
||
local Screen = require("device").screen
|
||
local UIManager = require("ui/uimanager")
|
||
local T = require("ffi/util").template
|
||
local _ = require("gettext")
|
||
|
||
local ReaderFont = InputContainer:new{
|
||
font_face = nil,
|
||
font_size = nil,
|
||
line_space_percent = nil,
|
||
font_menu_title = _("Font"),
|
||
face_table = nil,
|
||
-- default gamma from crengine's lvfntman.cpp
|
||
gamma_index = nil,
|
||
steps = {0,1,1,1,1,1,2,2,2,3,3,3,4,4,5},
|
||
gestureScale = Screen:getWidth() * FRONTLIGHT_SENSITIVITY_DECREASE,
|
||
}
|
||
|
||
function ReaderFont:init()
|
||
if Device:hasKeyboard() then
|
||
-- add shortcut for keyboard
|
||
self.key_events = {
|
||
ShowFontMenu = { {"F"}, doc = "show font menu" },
|
||
IncreaseSize = {
|
||
{ "Shift", Input.group.PgFwd },
|
||
doc = "increase font size",
|
||
event = "ChangeSize", args = "increase" },
|
||
DecreaseSize = {
|
||
{ "Shift", Input.group.PgBack },
|
||
doc = "decrease font size",
|
||
event = "ChangeSize", args = "decrease" },
|
||
IncreaseLineSpace = {
|
||
{ "Alt", Input.group.PgFwd },
|
||
doc = "increase line space",
|
||
event = "ChangeLineSpace", args = "increase" },
|
||
DecreaseLineSpace = {
|
||
{ "Alt", Input.group.PgBack },
|
||
doc = "decrease line space",
|
||
event = "ChangeLineSpace", args = "decrease" },
|
||
}
|
||
end
|
||
-- build face_table for menu
|
||
self.face_table = {}
|
||
local face_list = cre.getFontFaces()
|
||
for k,v in ipairs(face_list) do
|
||
table.insert(self.face_table, {
|
||
text_func = function()
|
||
-- defaults are hardcoded in credocument.lua
|
||
local default_font = G_reader_settings:readSetting("cre_font") or self.ui.document.default_font
|
||
local fallback_font = G_reader_settings:readSetting("fallback_font") or self.ui.document.fallback_font
|
||
local text = v
|
||
if v == default_font then
|
||
text = text .. " ★"
|
||
end
|
||
if v == fallback_font then
|
||
text = text .. " <20>"
|
||
end
|
||
return text
|
||
end,
|
||
callback = function()
|
||
self:setFont(v)
|
||
end,
|
||
hold_callback = function(touchmenu_instance)
|
||
self:makeDefault(v, touchmenu_instance)
|
||
end,
|
||
checked_func = function()
|
||
return v == self.font_face
|
||
end
|
||
})
|
||
face_list[k] = {text = v}
|
||
end
|
||
if self:hasFontsTestSample() then
|
||
self.face_table[#self.face_table].separator = true
|
||
table.insert(self.face_table, {
|
||
text = _("Generate fonts test HTML document"),
|
||
callback = function()
|
||
UIManager:show(ConfirmBox:new{
|
||
text = _("Would you like to generate an HTML document showing some sample text rendered with each available font?");
|
||
ok_callback = function()
|
||
self:buildFontsTestDocument()
|
||
end
|
||
})
|
||
end
|
||
})
|
||
end
|
||
self.ui.menu:registerToMainMenu(self)
|
||
end
|
||
|
||
function ReaderFont:onReaderReady()
|
||
self:setupTouchZones()
|
||
end
|
||
|
||
function ReaderFont:setupTouchZones()
|
||
if Device:isTouchDevice() then
|
||
self.ui:registerTouchZones({
|
||
{
|
||
id = "id_spread",
|
||
ges = "spread",
|
||
screen_zone = {
|
||
ratio_x = 0, ratio_y = 0, ratio_w = 1, ratio_h = 1,
|
||
},
|
||
handler = function(ges) return self:onAdjustSpread(ges) end
|
||
},
|
||
{
|
||
id = "id_pinch",
|
||
ges = "pinch",
|
||
screen_zone = {
|
||
ratio_x = 0, ratio_y = 0, ratio_w = 1, ratio_h = 1,
|
||
},
|
||
handler = function(ges) return self:onAdjustPinch(ges) end
|
||
},
|
||
})
|
||
end
|
||
end
|
||
|
||
function ReaderFont:onSetDimensions(dimen)
|
||
self.dimen = dimen
|
||
end
|
||
|
||
function ReaderFont:onReadSettings(config)
|
||
self.font_face = config:readSetting("font_face")
|
||
or G_reader_settings:readSetting("cre_font")
|
||
or self.ui.document.default_font
|
||
self.ui.document:setFontFace(self.font_face)
|
||
|
||
self.header_font_face = config:readSetting("header_font_face")
|
||
or G_reader_settings:readSetting("header_font")
|
||
or self.ui.document.header_font
|
||
self.ui.document:setHeaderFont(self.header_font_face)
|
||
|
||
self.font_size = config:readSetting("font_size")
|
||
or G_reader_settings:readSetting("copt_font_size")
|
||
or DCREREADER_CONFIG_DEFAULT_FONT_SIZE or 22
|
||
self.ui.document:setFontSize(Screen:scaleBySize(self.font_size))
|
||
|
||
self.font_embolden = config:readSetting("font_embolden")
|
||
or G_reader_settings:readSetting("copt_font_weight") or 0
|
||
self.ui.document:toggleFontBolder(self.font_embolden)
|
||
|
||
self.font_hinting = config:readSetting("font_hinting")
|
||
or G_reader_settings:readSetting("copt_font_hinting") or 2 -- auto (default in cre.cpp)
|
||
self.ui.document:setFontHinting(self.font_hinting)
|
||
|
||
self.font_kerning = config:readSetting("font_kerning")
|
||
or G_reader_settings:readSetting("copt_font_kerning") or 1 -- freetype (default in cre.cpp)
|
||
self.ui.document:setFontKerning(self.font_kerning)
|
||
|
||
self.space_condensing = config:readSetting("space_condensing")
|
||
or G_reader_settings:readSetting("copt_space_condensing") or 75
|
||
self.ui.document:setSpaceCondensing(self.space_condensing)
|
||
|
||
self.line_space_percent = config:readSetting("line_space_percent")
|
||
or G_reader_settings:readSetting("copt_line_spacing")
|
||
or DCREREADER_CONFIG_LINE_SPACE_PERCENT_MEDIUM
|
||
self.ui.document:setInterlineSpacePercent(self.line_space_percent)
|
||
|
||
self.gamma_index = config:readSetting("gamma_index")
|
||
or G_reader_settings:readSetting("copt_font_gamma")
|
||
or DCREREADER_CONFIG_DEFAULT_FONT_GAMMA or 15 -- gamma = 1.0
|
||
self.ui.document:setGammaIndex(self.gamma_index)
|
||
|
||
-- Dirty hack: we have to add following call in order to set
|
||
-- m_is_rendered(member of LVDocView) to true. Otherwise position inside
|
||
-- document will be reset to 0 on first view render.
|
||
-- So far, I don't know why this call will alter the value of m_is_rendered.
|
||
table.insert(self.ui.postInitCallback, function()
|
||
self.ui:handleEvent(Event:new("UpdatePos"))
|
||
end)
|
||
end
|
||
|
||
function ReaderFont:onShowFontMenu()
|
||
-- build menu widget
|
||
local main_menu = Menu:new{
|
||
title = self.font_menu_title,
|
||
item_table = self.face_table,
|
||
width = Screen:getWidth() - 100,
|
||
height = Screen:getHeight() / 2,
|
||
single_line = true,
|
||
perpage_custom = 8,
|
||
}
|
||
-- build container
|
||
local menu_container = CenterContainer:new{
|
||
main_menu,
|
||
dimen = Screen:getSize(),
|
||
}
|
||
main_menu.close_callback = function ()
|
||
UIManager:close(menu_container)
|
||
end
|
||
-- show menu
|
||
|
||
main_menu.show_parent = menu_container
|
||
|
||
UIManager:show(menu_container)
|
||
|
||
return true
|
||
end
|
||
|
||
--[[
|
||
UpdatePos event is used to tell ReaderRolling to update pos.
|
||
--]]
|
||
function ReaderFont:onChangeSize(direction, font_delta)
|
||
local delta = direction == "decrease" and -0.5 or 0.5
|
||
if font_delta then
|
||
self.font_size = self.font_size + font_delta * delta
|
||
else
|
||
self.font_size = self.font_size + delta
|
||
end
|
||
self.ui:handleEvent(Event:new("SetFontSize", self.font_size))
|
||
return true
|
||
end
|
||
|
||
function ReaderFont:onSetFontSize(new_size)
|
||
if new_size > 255 then new_size = 255 end
|
||
if new_size < 12 then new_size = 12 end
|
||
|
||
self.font_size = new_size
|
||
self.ui.document:setFontSize(Screen:scaleBySize(new_size))
|
||
self.ui:handleEvent(Event:new("UpdatePos"))
|
||
UIManager:show(Notification:new{
|
||
text = T( _("Font size set to %1."), self.font_size),
|
||
timeout = 2,
|
||
})
|
||
|
||
return true
|
||
end
|
||
|
||
function ReaderFont:onSetLineSpace(space)
|
||
self.line_space_percent = math.min(200, math.max(50, space))
|
||
UIManager:show(Notification:new{
|
||
text = T( _("Line spacing set to %1%."), self.line_space_percent),
|
||
timeout = 2,
|
||
})
|
||
self.ui.document:setInterlineSpacePercent(self.line_space_percent)
|
||
self.ui:handleEvent(Event:new("UpdatePos"))
|
||
return true
|
||
end
|
||
|
||
function ReaderFont:onToggleFontBolder(toggle)
|
||
self.font_embolden = toggle
|
||
self.ui.document:toggleFontBolder(toggle)
|
||
self.ui:handleEvent(Event:new("UpdatePos"))
|
||
return true
|
||
end
|
||
|
||
function ReaderFont:onSetFontHinting(mode)
|
||
self.font_hinting = mode
|
||
self.ui.document:setFontHinting(mode)
|
||
self.ui:handleEvent(Event:new("UpdatePos"))
|
||
return true
|
||
end
|
||
|
||
function ReaderFont:onSetFontKerning(mode)
|
||
self.font_kerning = mode
|
||
self.ui.document:setFontKerning(mode)
|
||
self.ui:handleEvent(Event:new("UpdatePos"))
|
||
return true
|
||
end
|
||
|
||
function ReaderFont:onSetSpaceCondensing(space)
|
||
self.space_condensing = space
|
||
self.ui.document:setSpaceCondensing(space)
|
||
self.ui:handleEvent(Event:new("UpdatePos"))
|
||
return true
|
||
end
|
||
|
||
function ReaderFont:onSetFontGamma(gamma)
|
||
self.gamma_index = gamma
|
||
self.ui.document:setGammaIndex(self.gamma_index)
|
||
local gamma_level = self.ui.document:getGammaLevel()
|
||
UIManager:show(Notification:new{
|
||
text = T( _("Font gamma set to %1."), gamma_level),
|
||
timeout = 2,
|
||
})
|
||
self.ui:handleEvent(Event:new("RedrawCurrentView"))
|
||
return true
|
||
end
|
||
|
||
function ReaderFont:onSaveSettings()
|
||
self.ui.doc_settings:saveSetting("font_face", self.font_face)
|
||
self.ui.doc_settings:saveSetting("header_font_face", self.header_font_face)
|
||
self.ui.doc_settings:saveSetting("font_size", self.font_size)
|
||
self.ui.doc_settings:saveSetting("font_embolden", self.font_embolden)
|
||
self.ui.doc_settings:saveSetting("font_hinting", self.font_hinting)
|
||
self.ui.doc_settings:saveSetting("font_kerning", self.font_kerning)
|
||
self.ui.doc_settings:saveSetting("space_condensing", self.space_condensing)
|
||
self.ui.doc_settings:saveSetting("line_space_percent", self.line_space_percent)
|
||
self.ui.doc_settings:saveSetting("gamma_index", self.gamma_index)
|
||
end
|
||
|
||
function ReaderFont:setFont(face)
|
||
if face and self.font_face ~= face then
|
||
self.font_face = face
|
||
UIManager:show(Notification:new{
|
||
text = T( _("Redrawing with font %1."), face),
|
||
timeout = 2,
|
||
})
|
||
|
||
self.ui.document:setFontFace(face)
|
||
-- signal readerrolling to update pos in new height
|
||
self.ui:handleEvent(Event:new("UpdatePos"))
|
||
end
|
||
end
|
||
|
||
function ReaderFont:makeDefault(face, touchmenu_instance)
|
||
if face then
|
||
UIManager:show(MultiConfirmBox:new{
|
||
text = T( _("Would you like %1 to be used as the default font (★), or the fallback font (<28>)?\n\nCharacters not found in the active font are shown in the fallback font instead."), face),
|
||
choice1_text = _("Default"),
|
||
choice1_callback = function()
|
||
G_reader_settings:saveSetting("cre_font", face)
|
||
if touchmenu_instance then touchmenu_instance:updateItems() end
|
||
end,
|
||
choice2_text = _("Fallback"),
|
||
choice2_callback = function()
|
||
if self.ui.document:setFallbackFontFace(face) then
|
||
G_reader_settings:saveSetting("fallback_font", face)
|
||
self.ui:handleEvent(Event:new("UpdatePos"))
|
||
end
|
||
if touchmenu_instance then touchmenu_instance:updateItems() end
|
||
end,
|
||
})
|
||
end
|
||
end
|
||
|
||
function ReaderFont:addToMainMenu(menu_items)
|
||
-- insert table to main reader menu
|
||
menu_items.change_font = {
|
||
text = self.font_menu_title,
|
||
sub_item_table = self.face_table,
|
||
}
|
||
end
|
||
|
||
function ReaderFont:onAdjustSpread(ges)
|
||
local step = math.ceil(2 * #self.steps * ges.distance / self.gestureScale)
|
||
local delta_int = self.steps[step] or self.steps[#self.steps]
|
||
local info = Notification:new{text = _("Increasing font size…")}
|
||
UIManager:show(info)
|
||
UIManager:forceRePaint()
|
||
self:onChangeSize("increase", delta_int)
|
||
UIManager:close(info)
|
||
return true
|
||
end
|
||
|
||
function ReaderFont:onAdjustPinch(ges)
|
||
local step = math.ceil(2 * #self.steps * ges.distance / self.gestureScale)
|
||
local delta_int = self.steps[step] or self.steps[#self.steps]
|
||
local info = Notification:new{text = _("Decreasing font size…")}
|
||
UIManager:show(info)
|
||
UIManager:forceRePaint()
|
||
self:onChangeSize("decrease", delta_int)
|
||
UIManager:close(info)
|
||
return true
|
||
end
|
||
|
||
function ReaderFont:hasFontsTestSample()
|
||
local font_test_sample = require("datastorage"):getSettingsDir() .. "/fonts-test-sample.html"
|
||
local lfs = require("libs/libkoreader-lfs")
|
||
return lfs.attributes(font_test_sample, "mode") == "file"
|
||
end
|
||
|
||
function ReaderFont:buildFontsTestDocument()
|
||
local font_test_sample = require("datastorage"):getSettingsDir() .. "/fonts-test-sample.html"
|
||
local f = io.open(font_test_sample, "r")
|
||
if not f then return nil end
|
||
local html_sample = f:read("*all")
|
||
f:close()
|
||
local dir = G_reader_settings:readSetting("home_dir")
|
||
if not dir then dir = require("apps/filemanager/filemanagerutil").getDefaultDir() end
|
||
if not dir then dir = "." end
|
||
local fonts_test_path = dir .. "/fonts-test-all.html"
|
||
f = io.open(fonts_test_path, "w")
|
||
-- Using <section><title>...</title></section> allows for a TOC to be built
|
||
f:write(string.format([[
|
||
<?xml version="1.0" encoding="UTF-8"?>
|
||
<html>
|
||
<head>
|
||
<title>%s</title>
|
||
<style>
|
||
section > title {
|
||
font-size: large;
|
||
font-weight: bold;
|
||
text-align: center;
|
||
page-break-before: always;
|
||
margin-bottom: 0.5em;
|
||
}
|
||
a { color: black; }
|
||
</style>
|
||
</head>
|
||
<body>
|
||
<section id="list"><title>%s</title></section>
|
||
]], _("Available fonts test document"), _("AVAILABLE FONTS")))
|
||
local face_list = cre.getFontFaces()
|
||
f:write("<div style='margin: 2em'>\n")
|
||
for _, font_name in ipairs(face_list) do
|
||
local font_id = font_name:gsub(" ", "_"):gsub("'", "_")
|
||
f:write(string.format(" <div><a href='#%s'>%s</a></div>\n", font_id, font_name))
|
||
end
|
||
f:write("</div>\n\n")
|
||
for _, font_name in ipairs(face_list) do
|
||
local font_id = font_name:gsub(" ", "_"):gsub("'", "_")
|
||
f:write(string.format("<section id='%s'><title>%s</title></section>\n", font_id, font_name))
|
||
f:write(string.format("<div style='font-family: %s'>\n", font_name))
|
||
f:write(html_sample)
|
||
f:write("\n</div>\n\n")
|
||
end
|
||
f:write("</body></html>\n")
|
||
f:close()
|
||
UIManager:show(ConfirmBox:new{
|
||
text = T(_("Document created as:\n%1\n\nWould you like to read it now?"), fonts_test_path),
|
||
ok_callback = function()
|
||
UIManager:scheduleIn(1.0, function()
|
||
self.ui:switchDocument(fonts_test_path)
|
||
end)
|
||
end,
|
||
})
|
||
end
|
||
|
||
return ReaderFont
|