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add text highlight for credocument

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Three highlight drawers "lighten", "underscore" and "invert" are
available in reader menu.
This should implement #176.
This commit is contained in:
chrox
2014-01-18 03:05:17 +08:00
parent 81f526cd43
commit 637904a711
6 changed files with 191 additions and 54 deletions
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35
frontend/document/credocument.lua
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@@ -2,6 +2,7 @@ local Geom = require("ui/geometry")
local CreOptions = require("ui/data/creoptions")
local Document = require("document/document")
local Configurable = require("ui/reader/configurable")
local Geom = require("ui/geometry")
local Font = require("ui/font")
local Device = require("ui/device")
local Screen = require("ui/screen")
@@ -133,12 +134,12 @@ function CreDocument:getPageCount()
end
function CreDocument:getWordFromPosition(pos)
local word_box = self._document:getWordFromPos(pos.x, pos.y)
local word_box = self._document:getWordFromPosition(pos.x, pos.y)
if word_box.word then
return {
word = word_box.word,
page = self._document:getCurrentPage(),
sbox = {
sbox = Geom:new{
x = word_box.x0, y = word_box.y0,
w = word_box.x1 - word_box.x0,
h = word_box.y1 - word_box.y0,
@@ -147,8 +148,34 @@ function CreDocument:getWordFromPosition(pos)
end
end
function CreDocument:getTextFromPositions(doc, pos0, pos1)
DEBUG("getTextFromPositions not finished yet")
function CreDocument:getTextFromPositions(pos0, pos1)
local text_range = self._document:getTextFromPositions(pos0.x, pos0.y, pos1.x, pos1.y)
DEBUG("CreDocument: get text range", text_range)
local line_boxes = self:getScreenBoxesFromPositions(text_range.pos0, text_range.pos1)
return {
text = text_range.text,
pos0 = text_range.pos0,
pos1 = text_range.pos1,
sboxes = line_boxes, -- boxes on screen
}
end
function CreDocument:getScreenBoxesFromPositions(pos0, pos1)
local line_boxes = {}
if pos0 and pos1 then
local word_boxes = self._document:getWordBoxesFromPositions(pos0, pos1)
--DEBUG("word boxes", word_boxes)
for i = 1, #word_boxes do
local line_box = word_boxes[i]
table.insert(line_boxes, Geom:new{
x = line_box.x0, y = line_box.y0,
w = line_box.x1 - line_box.x0,
h = line_box.y1 - line_box.y0,
})
end
--DEBUG("line boxes", line_boxes)
end
return line_boxes
end
function CreDocument:drawCurrentView(target, x, y, rect, pos)