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save highlight to pdf document

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This commit is contained in:
chrox
2014-02-02 00:16:51 +08:00
parent 702d656f8e
commit b42b4ed204
4 changed files with 89 additions and 3 deletions
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73
frontend/document/pdfdocument.lua
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@@ -4,6 +4,40 @@ local KoptOptions = require("ui/data/koptoptions")
local Document = require("document/document")
local Configurable = require("ui/reader/configurable")
local DrawContext = require("ffi/drawcontext")
local ffi = require("ffi")
ffi.cdef[[
typedef struct fz_point_s fz_point;
struct fz_point_s {
float x, y;
};
typedef enum {
FZ_ANNOT_TEXT,
FZ_ANNOT_LINK,
FZ_ANNOT_FREETEXT,
FZ_ANNOT_LINE,
FZ_ANNOT_SQUARE,
FZ_ANNOT_CIRCLE,
FZ_ANNOT_POLYGON,
FZ_ANNOT_POLYLINE,
FZ_ANNOT_HIGHLIGHT,
FZ_ANNOT_UNDERLINE,
FZ_ANNOT_SQUIGGLY,
FZ_ANNOT_STRIKEOUT,
FZ_ANNOT_STAMP,
FZ_ANNOT_CARET,
FZ_ANNOT_INK,
FZ_ANNOT_POPUP,
FZ_ANNOT_FILEATTACHMENT,
FZ_ANNOT_SOUND,
FZ_ANNOT_MOVIE,
FZ_ANNOT_WIDGET,
FZ_ANNOT_SCREEN,
FZ_ANNOT_PRINTERMARK,
FZ_ANNOT_TRAPNET,
FZ_ANNOT_WATERMARK,
FZ_ANNOT_3D
} fz_annot_type;
]]
local PdfDocument = Document:new{
_document = false,
@@ -12,6 +46,7 @@ local PdfDocument = Document:new{
dc_null = DrawContext.new(),
options = KoptOptions,
koptinterface = nil,
annot_revision = 0,
}
function PdfDocument:init()
@@ -112,6 +147,44 @@ function PdfDocument:getPageLinks(pageno)
return links
end
function PdfDocument:saveHighlight(pageno, item)
self.annot_revision = self.annot_revision + 1
local n = #item.pboxes
local quadpoints = ffi.new("fz_point[?]", 4*n)
for i=1, n do
quadpoints[4*i-4].x = item.pboxes[i].x + item.pboxes[i].w
quadpoints[4*i-4].y = item.pboxes[i].y + item.pboxes[i].h
quadpoints[4*i-3].x = item.pboxes[i].x
quadpoints[4*i-3].y = item.pboxes[i].y + item.pboxes[i].h
quadpoints[4*i-2].x = item.pboxes[i].x
quadpoints[4*i-2].y = item.pboxes[i].y
quadpoints[4*i-1].x = item.pboxes[i].x + item.pboxes[i].w
quadpoints[4*i-1].y = item.pboxes[i].y
end
local page = self._document:openPage(pageno)
local annot_type = ffi.C.FZ_ANNOT_HIGHLIGHT
if item.drawer == "lighten" then
annot_type = ffi.C.FZ_ANNOT_HIGHLIGHT
elseif item.drawer == "underscore" then
annot_type = ffi.C.FZ_ANNOT_UNDERLINE
elseif item.drawer == "strikeout" then
annot_type = ffi.C.FZ_ANNOT_STRIKEOUT
end
page:addMarkupAnnotation(quadpoints, 4*n, annot_type)
page:close()
end
function PdfDocument:writeDocument()
self._document:writeDocument(self.file)
end
function PdfDocument:close()
if self.annot_revision ~= 0 then
self:writeDocument()
end
Document.close(self)
end
function PdfDocument:getLinkFromPosition(pageno, pos)
return self.koptinterface:getLinkFromPosition(self, pageno, pos)
end