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Merge pull request #736 from chrox/man-crop

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adjust four corners of page bbox
This commit is contained in:
{Qingping,Dave} Hou
2013-02-05 19:41:06 -08:00
parent 85b4d60efc 72d806fbfc
commit 72eecac5e1
1 changed files with 13 additions and 3 deletions
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16
frontend/ui/bbox.lua
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@@ -85,7 +85,7 @@ function BBoxWidget:init()
},
CancelCrop = {
GestureRange:new{
ges = "hold_release",
ges = "hold",
range = Geom:new{
x = 0, y = 0,
w = Screen:getWidth(),
@@ -113,13 +113,23 @@ function BBoxWidget:onAdjustCrop(pos)
DEBUG("adjusting crop bbox with pos", pos)
local bbox = self.screen_bbox
local upper_left = Geom:new{ x = bbox.x0, y = bbox.y0}
local upper_right = Geom:new{ x = bbox.x1, y = bbox.y0}
local bottom_left = Geom:new{ x = bbox.x0, y = bbox.y1}
local bottom_right = Geom:new{ x = bbox.x1, y = bbox.y1}
if upper_left:distance(pos) < bottom_right:distance(pos) then
local corners = {upper_left, upper_right, bottom_left, bottom_right}
table.sort(corners, function(a,b) return a:distance(pos) < b:distance(pos) end)
if corners[1] == upper_left then
upper_left.x = pos.x
upper_left.y = pos.y
else
elseif corners[1] == bottom_right then
bottom_right.x = pos.x
bottom_right.y = pos.y
elseif corners[1] == upper_right then
bottom_right.x = pos.x
upper_left.y = pos.y
elseif corners[1] == bottom_left then
upper_left.x = pos.x
bottom_right.y = pos.y
end
self.screen_bbox = {
x0 = upper_left.x,