OrderCommentDialog: comment modifier ordering, keyboard redesign, and related cleanups

CMakeLists.txt

@@ -68,7 +68,7 @@ endif()
 # https://cmake.org/cmake/help/latest/prop_tgt/CXX_STANDARD.html
 string(COMPARE EQUAL "${CMAKE_CXX_STANDARD}" "" no_cmake_cxx_standard_set)
 if(no_cmake_cxx_standard_set)
-    set(CMAKE_CXX_STANDARD 20)
+    set(CMAKE_CXX_STANDARD 23)
     set(CMAKE_CXX_STANDARD_REQUIRED ON)
     set(CMAKE_CXX_EXTENSIONS OFF)
     message(STATUS "Using default C++ standard ${CMAKE_CXX_STANDARD}")
@@ -105,9 +105,12 @@ set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-error")  # Don't treat warnings as
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wsign-compare")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wshadow")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wconversion")
-set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wnull-dereference")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-null-dereference")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-dangling-reference")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wdouble-promotion")
 set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wformat=2")
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-system-headers")  # Suppress warnings from external libraries
+set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wno-maybe-uninitialized")  # Suppress uninitialized variable warnings from external date library
 
 # Performance optimizations
 if("${CMAKE_CXX_COMPILER_ID}" STREQUAL "GNU" OR "${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")

README.md

@@ -4,10 +4,10 @@
 
 **The Original Graphical Touchscreen Restaurant Point of Sale Interface**
 
-[![Build Status](https://img.shields.io/travis/ViewTouch/viewtouch/master.svg?label=Travis)](https://travis-ci.org/ViewTouch/viewtouch/builds)
-[![Discord](https://img.shields.io/discord/YOUR_SERVER_ID?color=7289da&label=Discord&logo=discord&logoColor=white)](https://discord.com/invite/ySmH2U2Mzb)
+[![Linux builds (basic)](https://github.com/ViewTouch/viewtouch/actions/workflows/linux-simple-builds.yml/badge.svg)](https://github.com/ViewTouch/viewtouch/actions/workflows/linux-simple-builds.yml)
 [![Join the chat at https://gitter.im/ViewTouch/viewtouch](https://badges.gitter.im/ViewTouch/viewtouch.svg)](https://gitter.im/ViewTouch/viewtouch?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
 [![License: GPL v3](https://img.shields.io/badge/License-GPLv3-blue.svg)](https://www.gnu.org/licenses/gpl-3.0)
+[![C++](https://img.shields.io/badge/C%2B%2B-23-blue)](https://en.wikipedia.org/wiki/C%2B%2B23)
 
 *ViewTouch is a registered trademark in the USA*
 
@@ -59,6 +59,23 @@ ViewTouch is a powerful, open-source Point of Sale system designed specifically
 
 See the [Wiki](../../wiki) for detailed build instructions and development setup.  Make sure your display is 1920 x 1080.
 
+**Basic Build Instructions:**
+
+```bash
+# Install dependencies (Ubuntu/Debian)
+sudo apt-get update
+sudo apt-get install -y build-essential cmake xorg-dev libmotif-dev libfreetype6-dev libcurl4-gnutls-dev
+
+# Clone and build
+git clone https://github.com/ViewTouch/viewtouch.git
+cd viewtouch
+cmake -S . -B build -DCMAKE_BUILD_TYPE=Release
+cmake --build build -j$(nproc)
+cmake --build build --target install
+```
+
+For more detailed instructions and development setup, see the [Wiki](../../wiki).
+
 ---
 
 ## Hardware
@@ -231,4 +248,4 @@ ViewTouch does not manage electronic payment processing. Please make your own de
 
 Made with ❤️ by the ViewTouch community
 
-</div>
+</div>

SECURITY.md

@@ -6,8 +6,8 @@ The following versions of ViewTouch are currently supported with security update
 
 | Version | Supported          | Notes |
 | ------- | ------------------ | ----- |
-| 25.03.x | :white_check_mark: | Current stable release |
-| < 25.03 | :x:                | End of life |
+| 26.01.x | :white_check_mark: | Current stable release |
+| < 26.01 | :x:                | End of life |
 
 **Note**: Only the latest stable release receives security updates. For the latest version information, please check the project repository.
 

cdu/cdu_main.cc

@@ -1,5 +1,5 @@
 /*
- * Copyright ViewTouch, Inc., 1995, 1996, 1997, 1998, 2025
+ * Copyright ViewTouch, Inc., 1995, 1996, 1997, 1998, 2025, 2026
 
  *   This program is free software: you can redistribute it and/or modify 
  *   it under the terms of the GNU General Public License as published by 
@@ -34,6 +34,7 @@
 #include "cdu_att.hh"
 #include "socket.hh"
 #include "utility.hh"
+#include "src/utils/cpp23_utils.hh"
 
 #ifdef DMALLOC
 #include <dmalloc.h>
@@ -219,7 +220,7 @@ int main(int argc, const char* argv[])
             else
             {
                 std::array<char, STRLENGTH> error_message{};
-                std::snprintf(error_message.data(), error_message.size(), "Could not write %s", g_deviceName.c_str());
+                vt::cpp23::format_to_buffer(error_message.data(), error_message.size(), "Could not write {}", g_deviceName.c_str());
                 perror(error_message.data());
             }
         }

config/version.cmake

@@ -7,8 +7,8 @@ include(${CMAKE_CURRENT_SOURCE_DIR}/cmake/gen_compiler_tag.cmake)
 set(PROJECT_IDENTIFIER ${TOP_PROJECT_UPPER})
 
 # The version number.
-set (ViewTouch_VERSION_MAJOR 25)
-set (ViewTouch_VERSION_MINOR 03)
+set (ViewTouch_VERSION_MAJOR 26)
+set (ViewTouch_VERSION_MINOR 0)
 set (ViewTouch_VERSION_PATCH  1)
 
 # generate short version string <MAJOR>.<MINOR>.<PATCH>

docs/BUILD_OPTIMIZATIONS.md

@@ -0,0 +1,43 @@
+# Build Optimizations Guide
+
+This page documents the new CMake options and recommended workflows for build-time optimizations.
+
+Options added to the top-level `CMakeLists.txt`:
+
+- `VT_ENABLE_LTO` (ON/OFF): enable interprocedural optimization support.
+- `VT_LTO_MODE` (off|thin|full): choose ThinLTO (default `thin`) or full LTO.
+- `VT_USE_CCACHE` (ON/OFF): enable use of `ccache` if present on PATH.
+- `VT_ENABLE_PGO` (ON/OFF): enable PGO scaffolding.
+- `VT_PGO_PHASE` (off|generate|use): set the PGO phase.
+
+Quick examples
+
+1) Configure a Release build with ThinLTO and ccache (recommended):
+
+```bash
+cmake -S . -B build -DCMAKE_BUILD_TYPE=Release -DVT_USE_CCACHE=ON -DVT_ENABLE_LTO=ON -DVT_LTO_MODE=thin
+cmake --build build -j$(nproc)
+```
+
+2) PGO workflow (generate -> run -> use):
+
+# Generate profile
+```bash
+cmake -S . -B build/pgo-generate -DCMAKE_BUILD_TYPE=Release -DVT_ENABLE_PGO=ON -DVT_PGO_PHASE=generate
+cmake --build build/pgo-generate -j$(nproc)
+# Run the instrumented binaries to produce profile data (exercise hotspots)
+./build/pgo-generate/vt_main [args...]
+
+# Use profile
+cmake -S . -B build/pgo-use -DCMAKE_BUILD_TYPE=Release -DVT_ENABLE_PGO=ON -DVT_PGO_PHASE=use
+cmake --build build/pgo-use -j$(nproc)
+```
+
+Notes and recommendations
+
+- ThinLTO is the best tradeoff between link time and optimization for incremental builds.
+- `ccache` greatly speeds up iterative development builds — ensure it is installed if enabled.
+- PGO requires two phases: `generate` (build instrumented binaries, run them) and `use` (rebuild using gathered profile data).
+- Performance compiler flags are applied only to `Release` and `RelWithDebInfo` builds by default.
+
+If you want CI integration, add a job that runs a Release build with `-DVT_ENABLE_LTO=ON -DVT_LTO_MODE=thin` and records binary size and a small smoke test. For PGO, consider a two-stage CI job or manual profiling step.