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feat: add i18n system with 22 languages #10

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35 changes: 35 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,38 @@ endif()

include(${CMAKE_CURRENT_SOURCE_DIR}/resources/cmake/bootstrap_deps.cmake)

# ── Embed locale JSON files as C++ raw string literals ────────────────────────
# Each src/locales/<lang>.json is read at configure time and appended into
# build/generated/locale_data.h as inline const char* kLocaleData_<lang>.
# Re-run cmake automatically when any JSON changes (CMAKE_CONFIGURE_DEPENDS).

set(_LOCALE_LANGS
english russian ukrainian german french spanish italian polish turkish
swedish dutch brazilian hungarian indonesian vietnamese
schinese tchinese japanese koreana latam
bulgarian danish
)
set(_LOCALE_HEADER "${CMAKE_BINARY_DIR}/generated/locale_data.h")

file(MAKE_DIRECTORY "${CMAKE_BINARY_DIR}/generated")

# Use file(WRITE/APPEND) directly — avoids CMake list/semicolon expansion bugs
# that occur when building large strings with string(APPEND) + file(WRITE).
file(WRITE "${_LOCALE_HEADER}" "// Auto-generated by CMake — do not edit. Re-run cmake to refresh.\n#pragma once\n\n")

foreach(_LANG ${_LOCALE_LANGS})
set(_JSON_PATH "${CMAKE_SOURCE_DIR}/src/locales/${_LANG}.json")
# Track for automatic re-configure when any JSON file changes
set_property(DIRECTORY APPEND PROPERTY CMAKE_CONFIGURE_DEPENDS "${_JSON_PATH}")
file(READ "${_JSON_PATH}" _JSON_CONTENT)
# Write open, content, close as separate appends so no CMake string
# processing can swallow the semicolon in )__LD__";
file(APPEND "${_LOCALE_HEADER}" "inline const char* kLocaleData_${_LANG} = R\"__LD__(\n")
file(APPEND "${_LOCALE_HEADER}" "${_JSON_CONTENT}")
file(APPEND "${_LOCALE_HEADER}" "\n)__LD__\";\n\n")
endforeach()
# ──────────────────────────────────────────────────────────────────────────────

add_library(imgui_lib STATIC
${imgui_SOURCE_DIR}/imgui.cpp
${imgui_SOURCE_DIR}/imgui_draw.cpp
Expand All @@ -62,6 +94,7 @@ set(SOURCES
src/window/wndproc.cc
src/window/renderer.cc
src/util/updater.cc
src/util/locale.cc
src/routes/router.cc
src/routes/home.cc
src/routes/install_prompt.cc
Expand Down Expand Up @@ -98,6 +131,7 @@ include_directories(SYSTEM ${zlib_SOURCE_DIR} ${zlib_BINARY_DIR})

target_link_libraries(${PROJECT_NAME} PRIVATE imgui_lib)
target_link_options(${PROJECT_NAME} PRIVATE /FORCE:MULTIPLE)
target_include_directories(${PROJECT_NAME} PRIVATE "${CMAKE_BINARY_DIR}/generated")

if(UNIX AND NOT APPLE)
find_package(PkgConfig REQUIRED)
Expand Down Expand Up @@ -137,3 +171,4 @@ elseif(WIN32)
bcrypt
)
endif()

9 changes: 5 additions & 4 deletions src/components/bottombar.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -33,6 +33,7 @@
#include <dpi.h>
#include <texture.hh>
#include <animate.h>
#include <i18n.h>
#ifdef _WIN32
#endif
#include <util.h>
Expand Down Expand Up @@ -66,10 +67,10 @@ const void RenderBottomNavBar(const char* identifier, float xPos, std::function<
const float cursorPosSave = GetCursorPosX();

SetCursorPosY(GetCursorPosY() - ScaleX(12));
TextColored(ImVec4(0.322f, 0.325f, 0.341f, 1.0f), "Steam Homebrew & Millennium are not affiliated with");
TextColored(ImVec4(0.322f, 0.325f, 0.341f, 1.0f), "%s", Locale::Get("installerDisclaimer1"));

SetCursorPos({ cursorPosSave, GetCursorPosY() - ScaleY(20) });
TextColored(ImVec4(0.322f, 0.325f, 0.341f, 1.0f), "Steam®, Valve, or any of their partners.");
TextColored(ImVec4(0.322f, 0.325f, 0.341f, 1.0f), "%s", Locale::Get("installerDisclaimer2"));

SameLine(0);
SetCursorPosY(GetCursorPosY() - ScaleY(25));
Expand All @@ -95,7 +96,7 @@ const void RenderBottomNavBar(const char* identifier, float xPos, std::function<
PushStyleVar(ImGuiStyleVar_WindowRounding, 6);
PushStyleVar(ImGuiStyleVar_Alpha, discordIconHoverTransparency);
PushStyleColor(ImGuiCol_PopupBg, ImVec4(0.098f, 0.102f, 0.11f, 1.0f));
SetTooltip("Join Discord Server");
SetTooltip("%s", Locale::Get("tooltipDiscord"));

if (IsItemClicked()) {
OpenUrl(discordInviteLink);
Expand Down Expand Up @@ -126,7 +127,7 @@ const void RenderBottomNavBar(const char* identifier, float xPos, std::function<
PushStyleVar(ImGuiStyleVar_WindowRounding, 6);
PushStyleVar(ImGuiStyleVar_Alpha, githubIconHoverTransparency);
PushStyleColor(ImGuiCol_PopupBg, ImVec4(0.098f, 0.102f, 0.11f, 1.0f));
SetTooltip("View Source Code");
SetTooltip("%s", Locale::Get("tooltipGithub"));

if (IsItemClicked()) {
OpenUrl(githubRepositoryUrl);
Expand Down
83 changes: 80 additions & 3 deletions src/components/titlebar.cc
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Original file line number Diff line number Diff line change
Expand Up @@ -33,8 +33,10 @@
#include <dpi.h>
#include <components.h>
#include <animate.h>
#include <i18n.h>
#include <math.h>
#include <worker.h>
#include <renderer.h>

using namespace ImGui;

Expand All @@ -44,8 +46,7 @@ using namespace ImGui;
*/
bool RenderTitleBarComponent(std::shared_ptr<RouterNav> router)
{
ImGuiIO& io = GetIO();
const std::string strTitleText = std::format("Steam Homebrew", io.Framerate);
const std::string strTitleText = Locale::Get("titlebarTitle");

ImGuiViewport* viewport = GetMainViewport();
PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(ScaleX(15), ScaleY(15)));
Expand Down Expand Up @@ -88,13 +89,14 @@ bool RenderTitleBarComponent(std::shared_ptr<RouterNav> router)
Text("%s", strTitleText.c_str());
SameLine();

ImVec2 closeButtonDimensions = { ceil(ScaleX(70)), ceil(ScaleY(43)) };

static bool isCloseButtonHovered = false;

if (isCloseButtonHovered) {
PushStyleColor(ImGuiCol_ChildBg, ImVec4(0.769f, 0.169f, 0.11f, 1.0f));
}

ImVec2 closeButtonDimensions = { ceil(ScaleX(70)), ceil(ScaleY(43)) };
SetCursorPos({ viewport->Size.x - closeButtonDimensions.x, 0 });

PushStyleVar(ImGuiStyleVar_ChildRounding, 0);
Expand Down Expand Up @@ -122,3 +124,78 @@ bool RenderTitleBarComponent(std::shared_ptr<RouterNav> router)

return IsItemHovered() || (IsItemHovered(ImGuiHoveredFlags_AllowWhenBlockedByActiveItem) && IsMouseDown(ImGuiMouseButton_Left));
}

/**
* Render the language selector dropdown in the main window scope (below the
* WndProc drag zone, top-right of the content area). Must be called from
* the root Begin/End block, NOT from inside a BeginChild.
*/
void RenderLanguageSelector(float xPos)
{
ImGuiViewport* viewport = GetMainViewport();

const auto& langs = Locale::GetAvailableLanguages();
const std::string& currentLangId = Locale::GetCurrentLanguageId();

std::string previewValue;
for (const auto& lang : langs) {
if (lang.id == currentLangId) { previewValue = lang.displayName; break; }
}
if (previewValue.empty()) previewValue = currentLangId;

const float langSelectorWidth = ScaleX(170);
// ScaleY(105): safely below the WndProc drag zone (ScaleY(100)), top-right of content
// Right edge aligned with bottom nav bar button edge (WindowPadding = ScaleX(30))
SetCursorPos({ xPos + viewport->Size.x - langSelectorWidth - ScaleX(30), ScaleY(105) });

PushStyleColor(ImGuiCol_FrameBg, ImVec4(0.13f, 0.14f, 0.15f, 1.0f));
PushStyleColor(ImGuiCol_FrameBgHovered, ImVec4(0.19f, 0.20f, 0.21f, 1.0f));
PushStyleColor(ImGuiCol_FrameBgActive, ImVec4(0.16f, 0.17f, 0.18f, 1.0f));
PushStyleColor(ImGuiCol_PopupBg, ImVec4(0.10f, 0.10f, 0.11f, 1.0f));
PushStyleColor(ImGuiCol_Header, ImVec4(0.20f, 0.21f, 0.22f, 1.0f));
PushStyleColor(ImGuiCol_HeaderHovered, ImVec4(0.26f, 0.27f, 0.28f, 1.0f));
PushStyleColor(ImGuiCol_Border, ImVec4(0.22f, 0.23f, 0.25f, 1.0f));
PushStyleVar(ImGuiStyleVar_FrameRounding, ScaleX(4));
PushStyleVar(ImGuiStyleVar_FramePadding, ImVec2(ScaleX(8), ScaleY(7)));
PushStyleVar(ImGuiStyleVar_WindowPadding, ImVec2(ScaleX(8), 0));

// Fonts[2] = VietName_Standalone: pushed for the Vietnamese item only.
// Fonts[3] = Geist+CJK+VietPreview: present only when Vietnamese is active;
// pushed around the entire combo so it looks the same as English mode.
ImGuiIO& io = GetIO();
ImFont* vietItemFont = (io.Fonts->Fonts.Size > 2) ? io.Fonts->Fonts[2] : nullptr;
ImFont* dropdownFont = (io.Fonts->Fonts.Size > 3) ? io.Fonts->Fonts[3] : nullptr;

if (dropdownFont) PushFont(dropdownFont);

SetNextItemWidth(langSelectorWidth);
if (BeginCombo("##LangSelector", previewValue.c_str())) {
for (const auto& lang : langs) {
bool isSelected = (lang.id == currentLangId);
bool useVietFont = (lang.id == "vietnamese") && (vietItemFont != nullptr);
if (useVietFont) {
if (dropdownFont) PopFont();
PushFont(vietItemFont);
}
if (Selectable(lang.displayName.c_str(), isSelected)) {
Locale::SetLanguage(lang.id);
RequestFontRebuild();
}
if (isSelected)
SetItemDefaultFocus();
if (useVietFont) {
PopFont();
if (dropdownFont) PushFont(dropdownFont);
}
}
EndCombo();
}

if (dropdownFont) PopFont();

if (IsItemHovered())
SetMouseCursor(ImGuiMouseCursor_Hand);

PopStyleVar(3);
PopStyleColor(7);
}
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