renun/koreader
1
0
Fork 0
mirror of https://github.com/koreader/koreader.git synced 2025-08-10 00:52:38 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

PDF free zoom mode revisit

Browse Source 
this should implement feature request of zoom mode for multi-columns
page in #501
This PR depends on koreader/koreader-base#435

How to use?
1. Tap the top left corner of a PDF/Djvu page to get into the flipping
mode
2. Double-tap on text block will zoom in to that column
3. Double-tap on any area will zoom out to an overview of the page
4. repeat step 2 to focus to another page block

How does it work?
1. We first find the mask of text blocks in the page. (Pic 1)
2. Then we intersect page boxes with user tap to form a page block. (Pic 2)
3. Finally we zoom the page to the page block and center current view to
that block. (Pic 3)
This commit is contained in:
chrox
2016-06-15 01:50:59 +08:00
parent 22d0dbfb4f
commit 5983050d79
9 changed files with 47 additions and 45 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
frontend/apps/reader/modules/readerpaging.lua
View File

@@ -267,30 +267,24 @@ function ReaderPaging:onToggleBookmarkFlipping()
end
function ReaderPaging:enterFlippingMode()
self.ui:handleEvent(Event:new("EnterFlippingMode"))
self.orig_reflow_mode = self.view.document.configurable.text_wrap
self.orig_scroll_mode = self.view.page_scroll
self.orig_zoom_mode = self.view.zoom_mode
DEBUG("store zoom mode", self.orig_zoom_mode)
self.DGESDETECT_DISABLE_DOUBLE_TAP = DGESDETECT_DISABLE_DOUBLE_TAP
self.view.document.configurable.text_wrap = 0
self.view.page_scroll = self.flipping_scroll_mode
Input.disable_double_tap = false
DGESDETECT_DISABLE_DOUBLE_TAP = false
self.ui:handleEvent(Event:new("SetZoomMode", self.flipping_zoom_mode))
self.ui:handleEvent(Event:new("EnterFlippingMode", self.flipping_zoom_mode))
end
function ReaderPaging:exitFlippingMode()
self.ui:handleEvent(Event:new("ExitFlippingMode"))
self.view.document.configurable.text_wrap = self.orig_reflow_mode
self.view.page_scroll = self.orig_scroll_mode
DGESDETECT_DISABLE_DOUBLE_TAP = self.DGESDETECT_DISABLE_DOUBLE_TAP
Input.disable_double_tap = DGESDETECT_DISABLE_DOUBLE_TAP
Input.disable_double_tap = true
self.flipping_zoom_mode = self.view.zoom_mode
self.flipping_scroll_mode = self.view.page_scroll
DEBUG("restore zoom mode", self.orig_zoom_mode)
self.ui:handleEvent(Event:new("SetZoomMode", self.orig_zoom_mode))
self.ui:handleEvent(Event:new("ExitFlippingMode", self.orig_zoom_mode))
end
function ReaderPaging:updateOriginalPage(page)