Re: [zathura] Calibrate zoom to physical monitor size?
On 2015-10-10 19:04:31, Caleb Maclennan wrote: > Huh. I hate to ask what an ETA looks like, but is this immanent or a someday > thing? I wasn't even aware there was a GTK port in the works. zathura was always using GTK+. But the current design made it necessary to redo some parts from scratch. Now we have libzathura (managing all the plugins and providing the document interface) and libzathura-gtk (widgets to render pages in a GTK+ based application). We are currently in the process of finishing up some parts in libzathura and libzathura-gtk and then we will port zathura to the new libraries. > In the mean time I'm wondering if there isn't a way to hack this in. Since > this is machine specific anyway I'm totally okay with compiling my own copy > from source and running that. I looked around earlier today in the source > repo but wasn't able to locate any since place where the code could be > easily hacked with a multiplier, but I have to imagine this exists somewhere > and that a simple source code change could hard code the relative scale on > the canvas. > > Know where that might be? You can take a look at libzathura-gtk/page/callbacks.c [1] and look for the code protected by #ifdef HAVE_HIDPI_SUPPORT. This should get you started. Code like this may be needed in other places too. Cheers [1] https://git.pwmt.org/?p=libzathura-gtk.git;a=summary -- Sebastian Ramacher ___ zathura mailing list zathura@lists.pwmt.org https://lists.pwmt.org/mailman/listinfo/zathura
Re: [zathura] Calibrate zoom to physical monitor size?
On 2015-10-10 10:15:11, Caleb Maclennan wrote: > I'm using Zathura (using the MuPDF plugin) to review various layouts for > printing. It's important to me that I'm looking at things approximately the > same size as they will come out on paper. I realize the difference between > screen pixels and how things look in print will still affect perception, but > to save test prints while I rough out margins and trim sizes I want to be > able to hold up a paper to the screen and have it match the on-screen > canvas. > > Zathura's default zoom level (100%) is anything but actual size for my > particular hardware configuration. In fact it's off by almost ⅓. If I set > the zoom to 133% I get something very close to actual size. How do I make > this the default zoom level? I would like everything else to scale against > that so that 50% is actually half size, etc. Is there a way to calibrate > the settings to my monitors—some sort of scale factor setting perhaps? > > Interestingly, Evince seems to know something about my monitor size because > it scales things exactly right out of the box. 100% turns up on my monitor > as exactly the right paper size (actually it's off by a smidgen, 100.5% is > more like it but it would be close enough). On the other hand Acroread is > off by a mile, but in the opposite direction as Zathura. There, a value of > 87% works out about right—actual-size is actually jumbo scale. > > How does Zathura decide what size to show at all? Is there a way to fix this > so 100% is actually actual-size? Is there a system DPI value that can be set > that will calibrate this? At the moment zathura isn't considering the DPI value at all and this is causing the symptoms you see. However, libzathura-gtk already considers the DPI value. So once we switch zathura to libzathura-gtk, this should work as expected. Cheers -- Sebastian Ramacher ___ zathura mailing list zathura@lists.pwmt.org https://lists.pwmt.org/mailman/listinfo/zathura
Re: [zathura] Calibrate zoom to physical monitor size?
Huh. I hate to ask what an ETA looks like, but is this immanent or a someday thing? I wasn't even aware there was a GTK port in the works. In the mean time I'm wondering if there isn't a way to hack this in. Since this is machine specific anyway I'm totally okay with compiling my own copy from source and running that. I looked around earlier today in the source repo but wasn't able to locate any since place where the code could be easily hacked with a multiplier, but I have to imagine this exists somewhere and that a simple source code change could hard code the relative scale on the canvas. Know where that might be? Sebastian Ramacher wrote: On 2015-10-10 10:15:11, Caleb Maclennan wrote: I'm using Zathura (using the MuPDF plugin) to review various layouts for printing. It's important to me that I'm looking at things approximately the same size as they will come out on paper. I realize the difference between screen pixels and how things look in print will still affect perception, but to save test prints while I rough out margins and trim sizes I want to be able to hold up a paper to the screen and have it match the on-screen canvas. Zathura's default zoom level (100%) is anything but actual size for my particular hardware configuration. In fact it's off by almost ⅓. If I set the zoom to 133% I get something very close to actual size. How do I make this the default zoom level? I would like everything else to scale against that so that 50% is actually half size, etc. Is there a way to calibrate the settings to my monitors—some sort of scale factor setting perhaps? Interestingly, Evince seems to know something about my monitor size because it scales things exactly right out of the box. 100% turns up on my monitor as exactly the right paper size (actually it's off by a smidgen, 100.5% is more like it but it would be close enough). On the other hand Acroread is off by a mile, but in the opposite direction as Zathura. There, a value of 87% works out about right—actual-size is actually jumbo scale. How does Zathura decide what size to show at all? Is there a way to fix this so 100% is actually actual-size? Is there a system DPI value that can be set that will calibrate this? At the moment zathura isn't considering the DPI value at all and this is causing the symptoms you see. However, libzathura-gtk already considers the DPI value. So once we switch zathura to libzathura-gtk, this should work as expected. Cheers -- Sebastian Ramacher ___ zathura mailing list zathura@lists.pwmt.org https://lists.pwmt.org/mailman/listinfo/zathura signature.asc Description: PGP signature ___ zathura mailing list zathura@lists.pwmt.org https://lists.pwmt.org/mailman/listinfo/zathura
