ReaderFont = InputContainer:new{ font_face = nil, font_size = nil, line_space_percent = nil, font_menu_title = "Change font", face_table = nil, -- default gamma from crengine's lvfntman.cpp gamma_index = nil, } function ReaderFont:init() if not Device:hasNoKeyboard() 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 = v, callback = function() self:setFont(v) end }) face_list[k] = {text = v} end self.ui.menu:registerToMainMenu(self) end function ReaderFont:onSetDimensions(dimen) self.dimen = dimen end function ReaderFont:onReadSettings(config) self.font_face = config:readSetting("font_face") if not self.font_face then self.font_face = self.ui.document.default_font end self.ui.document:setFontFace(self.font_face) self.header_font_face = config:readSetting("header_font_face") if not self.header_font_face then self.header_font_face = self.ui.document.header_font end self.ui.document:setHeaderFont(self.header_font_face) self.font_size = config:readSetting("font_size") if not self.font_size then --@TODO change this! 12.01 2013 (houqp) self.font_size = 29 end self.ui.document:setFontSize(self.font_size) self.line_space_percent = config:readSetting("line_space_percent") if not self.line_space_percent then self.line_space_percent = 100 else self.ui.document:setInterlineSpacePercent(self.line_space_percent) end self.gamma_index = config:readSetting("gamma_index") if not self.gamma_index then self.gamma_index = 15 end self.ui.document:setGammaIndex(self.gamma_index) -- Dirty hack: we have to add folloing 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, } function main_menu:onMenuChoice(item) if item.callback then item.callback() end end -- build container local menu_container = CenterContainer:new{ main_menu, dimen = Screen:getSize(), } main_menu.close_callback = function () UIManager:close(menu_container) end -- show menu UIManager:show(menu_container) return true end --[[ UpdatePos event is used to tell ReaderRolling to update pos. --]] function ReaderFont:onChangeSize(direction) local delta = 1 if direction == "decrease" then delta = -1 end self.font_size = self.font_size + delta UIManager:show(Notification:new{ text = direction.." font size to "..self.font_size, timeout = 1, }) self.ui.document:zoomFont(delta) self.ui:handleEvent(Event:new("UpdatePos")) UIManager:close(msg) return true end function ReaderFont:onSetFontSize(new_size) if new_size > 44 then new_size = 44 end if new_size < 18 then new_size = 18 end self.font_size = new_size UIManager:show(Notification:new{ text = "Set font size to "..self.font_size, timeout = 1, }) self.ui.document:setFontSize(new_size) self.ui:handleEvent(Event:new("UpdatePos")) return true end function ReaderFont:onChangeLineSpace(direction) if direction == "decrease" then self.line_space_percent = self.line_space_percent - 10 -- NuPogodi, 15.05.12: reduce lowest space_percent to 80 self.line_space_percent = math.max(self.line_space_percent, 80) else self.line_space_percent = self.line_space_percent + 10 self.line_space_percent = math.min(self.line_space_percent, 200) end UIManager:show(Notification:new{ text = direction.." line space to "..self.line_space_percent.."%", timeout = 1, }) self.ui.document:setInterlineSpacePercent(self.line_space_percent) self.ui:handleEvent(Event:new("UpdatePos")) return true end function ReaderFont:onToggleFontBolder() self.ui.document:toggleFontBolder() self.ui:handleEvent(Event:new("UpdatePos")) return true end function ReaderFont:onChangeFontGamma(direction) if direction == "increase" then cre.setGammaIndex(self.gamma_index+2) elseif direction == "decrease" then cre.setGammaIndex(self.gamma_index-2) end self.gamma_index = cre.getGammaIndex() UIManager:show(Notification:new{ text = direction.." gamma to "..self.gamma_index, timeout = 1 }) self.ui:handleEvent(Event:new("RedrawCurrentView")) return true end function ReaderFont:onCloseDocument() 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("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 = "redrawing with font "..face, timeout = 1, }) self.ui.document:setFontFace(face) -- signal readerrolling to update pos in new height self.ui:handleEvent(Event:new("UpdatePos")) UIManager:close(msg) end end function ReaderFont:addToMainMenu(item_table) -- insert table to main reader menu table.insert(item_table, { text = self.font_menu_title, sub_item_table = self.face_table, }) end