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Use `request_file_read_only_approved()` for the file (if any) is
specified through a command line argument.
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This allows for typing [8] instead of [8, 8, 8, 8] to specify the same
margin on all edges, for example. The constructors follow CSS' style of
specifying margins. The added constructors are:
- Margins(int all): Sets the same margin on all edges.
- Margins(int vertical, int horizontal): Sets the first argument to top
and bottom margins, and the second argument to left and right margins.
- Margins(int top, int vertical, int bottom): Sets the first argument to
the top margin, the second argument to the left and right margins,
and the third argument to the bottom margin.
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Most of the models were just calling did_update anyway, which is
pointless since it can be unified to the base Model class. Instead, code
calling update() will now call invalidate(), which functions identically
and is more obvious in what it does.
Additionally, a default implementation is provided, which removes the
need to add empty implementations of update() for each model subclass.
Co-Authored-By: Ali Mohammad Pur <ali.mpfard@gmail.com>
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Applications previously had to create a GUI::Menubar object, add menus
to it, and then call GUI::Window::set_menubar().
This patch introduces GUI::Window::add_menu() which creates the menubar
automatically and adds items to it. Application code becomes slightly
simpler as a result. :^)
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Also mark them as [[nodiscard]].
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This adds component declarations so that users can select to not build
certain parts of the OS.
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This time I remembered to actually commit the image files, oops :^)
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Also use set_current_number() instead of set_text(), so we don't have to
create a string from the number ourselves.
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Instead of having both always enabled once a document is loaded, update
them on each page change and disable if appropriate.
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go-up.png and go-down.png don't exist (and would look silly here, with
the buttons being next to each other horizontally). Use go-back.png and
go-forward.png instead.
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The toolbar has an option to toggle the sidebar, a number input to
set the current page, and two buttons to go up and down by one page
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Outlines are in theory implemented (though I'm having trouble finding
a simple PDF with outlines to test it on), and thumbnails are not.
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This matches other applications in the system. :^)
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When holding ctrl and scrolling, the page will be zoomed in an out.
When zoomed in on a page, scrolling with move vertically up and down
the page (or horizontally if shift is being held).
In order to speed up zooming, zoomed bitmaps are cached per-page at
each distinct zoom level. This cache is cleared every 30 seconds to
prevent OOM problems.
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