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web: Fix canvas size issues when zooming page

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WerWolv
2026-01-04 11:07:02 +01:00
parent 712a125be7
commit 03dd20c263
3 changed files with 7 additions and 5 deletions
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8
dist/web/source/wasm-config.js vendored
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@@ -271,11 +271,11 @@ window.addEventListener('resize', js_resizeCanvas, false);
function js_resizeCanvas() {
let canvas = document.getElementById('canvas');
canvas.top = document.documentElement.clientTop;
canvas.left = document.documentElement.clientLeft;
canvas.top = canvas.parentElement.clientTop;
canvas.left = canvas.parentElement.clientLeft;
let width = Math.min(document.documentElement.clientWidth, window.innerWidth || 0);
let height = Math.min(document.documentElement.clientHeight, window.innerHeight || 0);
let width = Math.min(canvas.parentElement.clientWidth, window.innerWidth || 0);
let height = Math.min(canvas.parentElement.clientHeight, window.innerHeight || 0);
canvas.style.width = width + "px";
canvas.style.height = height + "px";

1
main/gui/CMakeLists.txt
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@@ -45,6 +45,7 @@ if (EMSCRIPTEN)
target_link_options(main PRIVATE -sEXPORTED_RUNTIME_METHODS=ccall)
target_link_options(main PRIVATE -sFETCH)
target_link_options(main PRIVATE -sASSERTIONS)
target_link_options(main PRIVATE -sNO_DISABLE_EXCEPTION_CATCHING)
target_link_options(main PRIVATE -sWASM_BIGINT)
target_link_options(main PRIVATE -O2)
target_link_options(main PRIVATE -fsanitize=null)

3
main/gui/source/window/platform/web.cpp
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@@ -147,6 +147,7 @@ namespace hex {
prevWidth = width;
prevHeight = height;
this->resize(width, height);
resizeCanvas();
}
}
@@ -167,7 +168,7 @@ namespace hex {
ImHexApi::System::impl::setNativeScale(currScaleFactor);
ThemeManager::reapplyCurrentTheme();
ImGui::GetStyle().ScaleAllSizes(currScaleFactor);
ImGui::GetStyle().ScaleAllSizes(currScaleFactor / prevScaleFactor);
}
prevScaleFactor = currScaleFactor;