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expose translate button and key functions as public

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SlowRiot 2026-09-06 15:56:56 +01:00
parent e69fd222c2
commit 7ba43170f8
2 changed files with 7 additions and 7 deletions
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10
backends/imgui_impl_emscripten.cpp
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@ -4,6 +4,7 @@
//
// CHANGELOG
// (minor and older changes stripped away, please see git history for details)
// 2026-09-06: Inputs: Exposed mouse button and key translation functions as public.
// 2026-09-06: DPI: Added ImGui_ImplEmscripten_GetCssToImGuiScale() getter.
// 2026-09-05: DPI: Use the canvas framebuffer dimensions for display sizing and exact per-axis mouse coordinate scaling.
// 2026-09-04: Replaced TargetDevicePixelRatio global with an Init() parameter and runtime setter.
@ -28,11 +29,6 @@
extern ImGuiID ImHashStr(char const* data, size_t data_size = 0, ImGuiID seed = 0); // Declared in imgui_internal.h.
// W3C UI Events KeyboardEvent.code translation helpers
static ImGuiKey ImGui_ImplEmscripten_TranslateKey(char const* emscripten_key);
static constexpr ImGuiMouseButton ImGui_ImplEmscripten_TranslateMouseButton(unsigned short emscripten_button) __attribute__((__const__));
// Browser cursor helpers, adapted from https://github.com/Armchair-Software/emscripten-browser-cursor
enum ImGui_ImplEmscripten_Cursor
@ -606,7 +602,7 @@ static void ImGui_ImplEmscripten_SetBrowserCursor(char const* new_cursor)
}, new_cursor);
}
static constexpr ImGuiMouseButton ImGui_ImplEmscripten_TranslateMouseButton(unsigned short emscripten_button)
ImGuiMouseButton ImGui_ImplEmscripten_TranslateMouseButton(unsigned short emscripten_button)
{
// Translate an emscripten-provided integer describing a mouse button to an imgui mouse button
if (emscripten_button == 1) return ImGuiMouseButton_Middle; // 1 = middle mouse button
@ -841,7 +837,7 @@ static ImGuiStorage const& ImGui_ImplEmscripten_GetKeyTranslationStorage()
return storage;
}
static ImGuiKey ImGui_ImplEmscripten_TranslateKey(char const* emscripten_key)
ImGuiKey ImGui_ImplEmscripten_TranslateKey(const char* emscripten_key)
{
// Translate a W3C KeyboardEvent.code string into an ImGuiKey.
if (emscripten_key == nullptr || emscripten_key[0] == '\0') return ImGuiKey_None;

4
backends/imgui_impl_emscripten.h
View file

@ -50,6 +50,10 @@ IMGUI_IMPL_API void ImGui_ImplEmscripten_SetTargetDevicePixelRatio(float target_
// Return the scale used to convert browser CSS pixel coordinates to Dear ImGui coordinates. Valid after Init().
IMGUI_IMPL_API ImVec2 ImGui_ImplEmscripten_GetCssToImGuiScale();
// Input translation helpers.
IMGUI_IMPL_API ImGuiMouseButton ImGui_ImplEmscripten_TranslateMouseButton(unsigned short emscripten_button);
IMGUI_IMPL_API ImGuiKey ImGui_ImplEmscripten_TranslateKey(const char* emscripten_key);
// Shut down the Emscripten backend. This unsets all Emscripten input callbacks set by Init.
// Note it'll also unset any Emscripten input callbacks set elsewhere in the program!
// Note also there is no obligation to ever call this, unless you intend to reset the backend (i.e. with ImGui::DestroyContext()).