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[HTML5] Detect screen scale and DPI.

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`OS.get_screen_scale` will now return the `window.devicePixelRatio`
value, `OS.get_screen_dpi` uses CSS media queries to find approximate
DPI value for the current display.
`OS.get_screen_size` also return the actual screen size (not the CSS
pixel size).
This commit is contained in:
Fabio Alessandrelli 2021-02-12 10:50:02 +01:00
parent e9a25b8552
commit 6cff589b5b
4 changed files with 35 additions and 2 deletions
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1
platform/javascript/display_server_javascript.h
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@ -136,6 +136,7 @@ public:
Size2i screen_get_size(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
Rect2i screen_get_usable_rect(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
int screen_get_dpi(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
float screen_get_scale(int p_screen = SCREEN_OF_MAIN_WINDOW) const override;
// windows
Vector<DisplayServer::WindowID> get_window_list() const override;