mirror of https://github.com/koreader/koreader
add text highlight in both reflow and non-reflow mode
chrox
11 years ago
parent
7f53ddacbe
commit
936dfc6fd1
@ -0,0 +1,24 @@
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require "ui/device"
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ReaderDictionary = EventListener:new{}
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function ReaderDictionary:init()
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local dev_mod = Device:getModel()
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if dev_mod == "KindlePaperWhite" or dev_mod == "KindleTouch" then
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require "liblipclua"
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self.lipc_handle = lipc.init("com.github.koreader.dictionary")
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end
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end
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function ReaderDictionary:onLookupWord(word)
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DEBUG("lookup word:", word)
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if self.lipc_handle then
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-- start indicator depends on pillow being enabled
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self.lipc_handle:set_string_property(
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"com.lab126.booklet.kpvbooklet.dict", "lookup", word)
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local definitions = self.lipc_handle:get_string_property(
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"com.lab126.booklet.kpvbooklet.word", word)
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DEBUG("definitions of word:", word, definitions)
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end
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return true
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end
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@ -0,0 +1,125 @@
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ReaderHighlight = InputContainer:new{}
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function ReaderHighlight:init()
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if Device:hasKeyboard() then
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self.key_events = {
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ShowToc = {
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{ "." },
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doc = _("highlight text") },
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}
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end
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end
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function ReaderHighlight:initGesListener()
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self.ges_events = {
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Tap = {
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GestureRange:new{
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ges = "tap",
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range = Geom:new{
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x = 0, y = 0,
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w = Screen:getWidth(),
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h = Screen:getHeight()
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}
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}
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},
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Hold = {
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GestureRange:new{
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ges = "hold",
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range = Geom:new{
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x = 0, y = 0,
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w = Screen:getWidth(),
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h = Screen:getHeight()
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}
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}
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},
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}
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end
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function ReaderHighlight:onSetDimensions(dimen)
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-- update listening according to new screen dimen
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if Device:isTouchDevice() then
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self:initGesListener()
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end
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end
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function ReaderHighlight:onTap(arg, ges)
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if self.view.highlight.rect then
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self.view.highlight.rect = nil
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UIManager:setDirty(self.dialog, "partial")
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return true
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end
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end
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function ReaderHighlight:onHold(arg, ges)
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self.pos = self.view:screenToPageTransform(ges.pos)
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DEBUG("hold position in page", self.pos)
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local text = self.ui.document:getPageText(self.pos.page)
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--DEBUG("page text", text)
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if not text or #text == 0 then
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DEBUG("no text extracted")
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return true
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end
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self.word_info = self:getWordFromText(text, self.pos)
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DEBUG("hold word info in page", self.word_info)
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if self.word_info then
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local screen_rect = self.view:pageToScreenTransform(self.pos.page, self.word_info.box)
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DEBUG("highlight word rect", screen_rect)
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if screen_rect then
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self.view.highlight.rect = screen_rect
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UIManager:setDirty(self.dialog, "partial")
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-- if we extracted text directly
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if self.word_info.word then
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self.ui:handleEvent(Event:new("LookupWord", self.word_info.word))
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-- or we will do OCR
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else
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UIManager:scheduleIn(0.1, function()
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local word_box = self.word_info.box
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word_box.x = word_box.x - math.floor(word_box.h * 0.02)
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word_box.y = word_box.y - math.floor(word_box.h * 0.02)
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word_box.w = word_box.w + math.floor(word_box.h * 0.04)
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word_box.h = word_box.h + math.floor(word_box.h * 0.04)
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local word = self.ui.document:getOCRWord(self.pos.page, word_box)
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DEBUG("OCRed word:", word)
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self.ui:handleEvent(Event:new("LookupWord", word))
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end)
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end
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end
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end
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return true
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end
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function ReaderHighlight:getWordFromText(text, pos)
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local function ges_inside(x0, y0, x1, y1)
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local x, y = pos.x, pos.y
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if x0 ~= nil and y0 ~= nil and x1 ~= nil and y1 ~= nil then
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if x0 <= x and y0 <= y and x1 >= x and y1 >= y then
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return true
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end
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end
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return false
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end
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for i = 1, #text do
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local l = text[i]
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if ges_inside(l.x0, l.y0, l.x1, l.y1) then
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--DEBUG("line box", l.x0, l.y0, l.x1, l.y1)
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for j = 1, #text[i] do
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local w = text[i][j]
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if ges_inside(w.x0, w.y0, w.x1, w.y1) then
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local box = Geom:new{
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x = w.x0, y = w.y0,
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w = w.x1 - w.x0,
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h = w.y1 - w.y0,
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}
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return {
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word = w.word,
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box = box,
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}
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end -- end if inside word box
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end -- end for each word
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end -- end if inside line box
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end -- end for each line
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end
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