One thing that we should do is to load everything if the file size is smaller than some value as those are okay. This will probably smooth scrolling.
Shuhao On 11/22/2013 09:08 PM, D M German wrote: > > > Shuhao> For the problem with file loading, I have that issue. I try to keep > my > Shuhao> notes in under 14 pages per file because of this. > > Shuhao> Can't we not have multiple files inside the tar file? This means that > Shuhao> each page (or two pages, whatever the optimal number is) gets its own > Shuhao> xml file. We would only load pages as they are necessary, and even > Shuhao> freeing (on save, as an example). > > The problem is that xournal instantiates every single widget needed for > the entire document, eating a lot of memory. > > One solution is that, in single page mode, only the current page (and > perhaps the next and previous) are loaded. This will slow scrolling, but > if properly done it might work. > > But this requires a lot of work. > > --dmg > > > > Shuhao> Shuhao > > Shuhao> On 11/20/2013 10:24 PM, D M German wrote: > >> > >> > >> > Wilson> I'm interested to hear the resolution of this resize lag! Because of > the > Wilson> limitations of my netbook the memory usage and lag were probably the > two > Wilson> issues that impacted my experience the most. > >> > >> After the exercise to port to goocanvas, I can say that this problem is > >> not trivial to solve. > >> > >> The main problem is that xournal instantiates every single canvas item > >> when they are created/loaded from the file. This means that if you are > >> low in memory, and your document is large, your computer might start > >> trashing. > >> > >> The resize problem is not as difficult to solve (specially for one page > >> viewing). This might be done by resizing the current page interactively > >> and the rest of the pages in the background (something that is done > >> already for PDF backgrounds). Of course, the programming is not > >> trivial, but doable. > >> > >> > >> --dmg > >> > >> > >> -- > >> Daniel M. German > >> http://turingmachine.org/ > >> http://silvernegative.com/ > >> dmg (at) uvic (dot) ca > >> replace (at) with @ and (dot) with . > >> > >> > >> > >> > ------------------------------------------------------------------------------ > >> Shape the Mobile Experience: Free Subscription > >> Software experts and developers: Be at the forefront of tech innovation. > >> Intel(R) Software Adrenaline delivers strategic insight and game-changing > >> conversations that shape the rapidly evolving mobile landscape. Sign up > now. > >> > http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk > >> _______________________________________________ > >> Xournal-devel mailing list > >> Xournal-devel@lists.sourceforge.net > >> https://lists.sourceforge.net/lists/listinfo/xournal-devel > >> > > Shuhao> > ------------------------------------------------------------------------------ > Shuhao> Shape the Mobile Experience: Free Subscription > Shuhao> Software experts and developers: Be at the forefront of tech > innovation. > Shuhao> Intel(R) Software Adrenaline delivers strategic insight and > game-changing > Shuhao> conversations that shape the rapidly evolving mobile landscape. Sign > up now. > Shuhao> > http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk > Shuhao> _______________________________________________ > Shuhao> Xournal-devel mailing list > Shuhao> Xournal-devel@lists.sourceforge.net > Shuhao> https://lists.sourceforge.net/lists/listinfo/xournal-devel > > > -- > Daniel M. German "One person will bear with > dissent in matters of church government, > John Stuart Mill -> but not of dogma" > http://turingmachine.org/ > http://silvernegative.com/ > dmg (at) uvic (dot) ca > replace (at) with @ and (dot) with . > > > ------------------------------------------------------------------------------ Rapidly troubleshoot problems before they affect your business. Most IT organizations don't have a clear picture of how application performance affects their revenue. With AppDynamics, you get 100% visibility into your Java,.NET, & PHP application. Start your 15-day FREE TRIAL of AppDynamics Pro! http://pubads.g.doubleclick.net/gampad/clk?id=84349351&iu=/4140/ostg.clktrk _______________________________________________ Xournal-devel mailing list Xournal-devel@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/xournal-devel
