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WindowServer: In HighDPI mode, load high-res window buttons and high-res cursors
Bitmap::load_from_file("foo.png", 2) will now look for "foo-2x.png" and try load that as a bitmap with scale factor 2 if it exists. If it doesn't, it falls back to the 1x bitmap as normal. Only places that know that they'll draw the bitmap to a 2x painter should pass "2" for the second argument. Use this new API in WindowServer for loading window buttons and cursors. As a testing aid, ctrl-shift-super-i can force HighDPI icons off in HighDPI mode. Toggling between low-res and high-res icons makes it easy to see if the high-res version of an icon looks right: It should look like the low-res version, just less jaggy. We'll likely have to grow a better API for loading scaled resources, but for now this suffices. Things to check: - `chres 640 480` followed by `chres 640 480 2` followed by `chres 640 480` - window buttons in window context menu (in task bar and on title bar) still have low-res icons - ctrl-shift-super-i in high-res mode toggles sharpness of window buttons and of arrow cursorf - arrow cursor hotspot is still where you'd expect
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@ -713,7 +713,10 @@ bool Compositor::set_resolution(int desired_width, int desired_height, int scale
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return false;
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}
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int old_scale_factor = Screen::the().scale_factor();
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bool success = Screen::the().set_resolution(desired_width, desired_height, scale_factor);
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if (success && old_scale_factor != scale_factor)
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WindowManager::the().reload_icon_bitmaps_after_scale_change();
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init_bitmaps();
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invalidate_occlusions();
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compose();
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