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add usedbbox support

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This commit is contained in:
Qingping Hou
2012-12-02 17:09:32 +08:00
parent 7e04c97b70
commit 7b707ab367
5 changed files with 66 additions and 13 deletions
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30
frontend/document/document.lua
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@@ -124,6 +124,20 @@ function Document:getPageDimensions(pageno, zoom, rotation)
return native_dimen
end
function Document:getUsedBBoxDimensions(pageno, zoom, rotation)
ubbox = self:getUsedBBox(pageno)
ubbox_dimen = Geom:new{
x = ubbox.x0,
y = ubbox.y0,
w = ubbox.x1 - ubbox.x0,
h = ubbox.y1 - ubbox.y0,
}
if zoom ~= 1 then
ubbox_dimen:transformByScale(zoom)
end
return ubbox_dimen
end
function Document:getToc()
return self._document:getToc()
end
@@ -185,6 +199,14 @@ function Document:hintPage(pageno, zoom, rotation)
self:renderPage(pageno, nil, zoom, rotation)
end
--[[
Draw page content to blitbuffer.
1. find tile in cache
2. if not found, call renderPage
@target: target blitbuffer
@rect: visible_area inside document page
--]]
function Document:drawPage(target, x, y, rect, pageno, zoom, rotation, render_mode)
local hash_full_page = "renderpg|"..self.file.."|"..pageno.."|"..zoom.."|"..rotation
local hash_excerpt = "renderpg|"..self.file.."|"..pageno.."|"..zoom.."|"..rotation.."|"..tostring(rect)
@@ -196,8 +218,12 @@ function Document:drawPage(target, x, y, rect, pageno, zoom, rotation, render_mo
tile = self:renderPage(pageno, rect, zoom, rotation, render_mode)
end
end
DEBUG("now painting", tile)
target:blitFrom(tile.bb, x, y, rect.x - tile.excerpt.x, rect.y - tile.excerpt.y, rect.w, rect.h)
DEBUG("now painting", tile, rect)
target:blitFrom(tile.bb,
x, y,
rect.x - tile.excerpt.x,
rect.y - tile.excerpt.y,
rect.w, rect.h)
end
function Document:drawCurrentView(target, x, y, rect, pos)