diff options
| author | Morten Johan Sørvig <morten.sorvig@qt.io> | 2019-04-30 09:17:54 +0200 |
|---|---|---|
| committer | Morten Johan Sørvig <morten.sorvig@qt.io> | 2019-05-13 12:29:21 +0000 |
| commit | 56acf089c7759ce21a5bc3ce32616df5b01e78ef (patch) | |
| tree | 88af13b8656633009884e11a857563ba01365704 /src/plugins/platforms/wasm/qwasmscreen.cpp | |
| parent | ffdcad9e400ff43b7f33621caca672389a03e4e6 (diff) | |
wasm: support setting the font DPI from JS
We have not really been able to determine what the
default DPI should be, so make it configurable with
API on qtloader.js:
qtLoader.setFontDpi(72);
Also lowers the default DPI to the standard value of
96 (down from Qt default 100).
Task-number: QTBUG-75510
Change-Id: Ica1164c8d80bb06519233adebf2c9e400c0991ce
Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@qt.io>
Diffstat (limited to 'src/plugins/platforms/wasm/qwasmscreen.cpp')
| -rw-r--r-- | src/plugins/platforms/wasm/qwasmscreen.cpp | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/plugins/platforms/wasm/qwasmscreen.cpp b/src/plugins/platforms/wasm/qwasmscreen.cpp index a26cafa900..af50ce7440 100644 --- a/src/plugins/platforms/wasm/qwasmscreen.cpp +++ b/src/plugins/platforms/wasm/qwasmscreen.cpp @@ -31,6 +31,7 @@ #include "qwasmwindow.h" #include "qwasmeventtranslator.h" #include "qwasmcompositor.h" +#include "qwasmintegration.h" #include <emscripten/bind.h> #include <emscripten/val.h> @@ -100,6 +101,17 @@ QImage::Format QWasmScreen::format() const return m_format; } +QDpi QWasmScreen::logicalDpi() const +{ + emscripten::val dpi = emscripten::val::module_property("qtFontDpi"); + if (!dpi.isUndefined()) { + qreal dpiValue = dpi.as<qreal>(); + return QDpi(dpiValue, dpiValue); + } + const qreal defaultDpi = 96; + return QDpi(defaultDpi, defaultDpi); +} + qreal QWasmScreen::devicePixelRatio() const { // FIXME: The effective device pixel ratio may be different from the |