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save pan position when entering pan_by_page

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Dobrica Pavlinusic
2012-02-29 20:47:02 +01:00
parent 4481fc5178
commit 33829e1815
1 changed files with 19 additions and 8 deletions
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27
pdfreader.lua
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@@ -40,6 +40,8 @@ PDFReader = {
shift_x = 100,
shift_y = 50,
pan_by_page = false, -- using shift_[xy] or width/height
pan_x = 0, -- top-left offset of page when pan activated
pan_y = 0,
-- keep track of input state:
shiftmode = false, -- shift pressed
@@ -366,8 +368,8 @@ function PDFReader:inputloop()
self:setglobalzoom(self.globalzoom+0.1)
else
if self.pan_by_page then
self.offset_x = 0
self.offset_y = 0
self.offset_x = self.pan_x
self.offset_y = self.pan_y
end
self:goto(self.pageno + 1)
end
@@ -378,8 +380,8 @@ function PDFReader:inputloop()
self:setglobalzoom(self.globalzoom-0.1)
else
if self.pan_by_page then
self.offset_x = 0
self.offset_y = 0
self.offset_x = self.pan_x
self.offset_y = self.pan_y
end
self:goto(self.pageno - 1)
end
@@ -462,7 +464,7 @@ function PDFReader:inputloop()
self.offset_x = 0
end
if self.pan_by_page then
self.offset_y = 0
self.offset_y = self.pan_y
end
elseif ev.code == KEY_FW_RIGHT then
self.offset_x = self.offset_x - x
@@ -470,7 +472,7 @@ function PDFReader:inputloop()
self.offset_x = self.min_offset_x
end
if self.pan_by_page then
self.offset_y = 0
self.offset_y = self.pan_y
end
elseif ev.code == KEY_FW_UP then
self.offset_y = self.offset_y + y
@@ -484,10 +486,19 @@ function PDFReader:inputloop()
end
elseif ev.code == KEY_FW_PRESS then
if self.shiftmode then
self.offset_x = 0
self.offset_y = 0
if self.pan_by_page then
self.offset_x = self.pan_x
self.offset_y = self.pan_y
else
self.offset_x = 0
self.offset_y = 0
end
else
self.pan_by_page = not self.pan_by_page
if self.pan_by_page then
self.pan_x = self.offset_x
self.pan_y = self.offset_y
end
end
end
if old_offset_x ~= self.offset_x