SQRC (show QR code) is simple utility that takes data from the clipboard and shows you QR code. It is very helpfull for transfering text data into you smartphone via QR code recognition.

C++ version

You have to build it manually or take a look at Issues tab it could be that executable for your OS has already been built.

Build guide

Used Qt SDK version 5.12.1.

Aquire source code with submodules:

$ git clone --recurse-submodules https://github.com/koutoftimer/sqrc.git

Build with dynamicaly linked Qt libraries

Use QtCreator or any other way to build c++/sqrc-qt/sqrc-qt.pro project.

Linux users can use build-app-image.sh to create AppImage bundle. It behaves much like staticaly linked executable from user's perspective but take about 25% more space. On the other hand it is much faster then compiling static Qt library.

Build with staticaly linked Qt libraries

Build static Qt

1. Download Qt sources v5.12.1. It can be fine to work with any 5.* but I was using 5.12.1, no other version were tested.
2. Extract it and configure with

$ ./configure -opensource -confirm-license -release -static \
    -c++std c++14 -nomake examples -nomake tests -nomake tools \
    -prefix ./build

Windows users should use configure.bat instead. 3. Run make -j$(nproc) && make -j$(nproc) install. This will take a while.

Build sqrc

1. Go to sqrc's root directory.
2. Make build directory and go into it.

$ cd c++
$ mkdir build
$ cd build

3. Launch qmake built with Qt

$ /path/to/Qt/build/bin/qmake ../src/sqrc.pro

4. Build sqrc with make. You can specify release option, otherwise both release and debug versions will be in correcponding directories.

$ make -j$(nproc) release

Cross build for Windows with MXE

1. Clone it or download archive for this commit https://github.com/mxe/mxe/tree/ecca1162cba6017c3b73348312cbebc83e3e47f3. You can use any, but I was lucky with this particular one.
2. Check your system requirements for MXE
3. Go to MXE's root directory and install Qt5 with following command

$ make -j$(nproc) qt5

This will take a while. 4. To build sqrc with MXE's Qt5 static library do

$ PATH="/path/to/mxe/usr/bin:$PATH" /path/to/mxe/i686-w64-mingw32.static/qt5/bin/qmake ../src/sqrc-qt.pro
$ PATH="/path/to/mxe/usr/bin:$PATH" make -j$(nproc)

You can specify release option, otherwise both release and debug versions will be in correcponding directories.

Python version

If you already have python on your working machine, you can download pythonic version from pip in single command and start using it.

Installation

Using pip: pip install sqrc

Usage

You have to execute command line

$ sqrc

or use any other way to launch sqrc executable.

Security notes

Utility consists from 3 external libraries:

1. pyperclip to access clipboard.
2. qrcode to qenerate QR code for data in the clipboard.
3. Pillow to display generated image.

You should dive deaper to discover weak points but none of them is single man project. All dependencies have 20+ contributors. It is very unlikely to push some maleware into source code.