Fix GLib::GObject::CRITICAL on out-of-range zoom factor (Gtk3::ImageV… #775
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…iew) The zoom factor have a minimum value 0.001 by default. To fit high-resolution display (4K/8K), a minimum value 0.0001 is perferred. Or boring CRITICAL messages are frequently printed. This commit gets the minimum value tuned for ImageView used by screenshot tabs. Fix shutter-project#774
| 'zoom', #name | ||
| 'zoom', #nick | ||
| 'zoom level', #blurb | ||
| 0.0001, #minium, tuned to fit 4K/8K modern display |
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Why not to fix it in Gtk3::ImageView itself?
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Another PR to Gtk3::ImageView?
If no change to upstream, derived class is the most convenient way to override GObject Property, AFAIK.
Alternative way: if extending with package Gtk3::ImageView; ... , some low-level C functions (e.g. g_object_class_install_property) may help. (see https://docs.gtk.org/gobject/class_method.Object.install_property.html). But this is not recommended and more complex.
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It's at https://github.com/carygravel/gtk3-imageview
Or you think only shutter can benefit from 8k display?
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What we're trying to say is that it would be more beneficial to try a fix upstream in addition to the one here, so we get a fix right away plus other projects can be benefit long term as well :)
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Got it. PR for upstream on the way.
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After more investigation, it turns out the RCA is the lazy allocation of Gtk widgets:
New ImageView widgets created during invisible state would keep 1x1 dummy size allocation till first show. When this size applied in set_fitting(), pixbuf with height or width over 1000px would have zoom factor beyond the range.
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…iew)
The zoom factor have a minimum value 0.001 by default. To fit high-resolution display (4K/8K), a minimum value 0.0001 is perferred. Or boring CRITICAL messages are frequently printed.
This commit gets the minimum value tuned for ImageView used by screenshot tabs.
Fix #774