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docs/developers/Development_with_Qt_Creator.md

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+# Introduction to Qt Creator
+
+Qt Creator is the recommended IDE for VCMI development on Linux
+distributions, but it may be used on other operating systems as well. It
+has the following advantages compared to other IDEs:
+
+-   Fast parser/indexer, stable.
+-   Almost no manual configuration when used with CMake. Project
+    configuration is read from CMake text files,
+-   Easy to setup and use with multiple different compiler toolchains:
+    GCC, Visual Studio, Clang
+
+You can install Qt Creator from repository, but better to stick to
+latest version from Qt website:
+<https://www.qt.io/download-open-source/>
+
+## Configuration
+
+To open the project you have to click File -\> Open file or project...
+-\> Select /path/to/vcmi/src/CMakeLists.txt.
+
+For the first time and for every CMake project configuration change you
+have to execute CMake. This step can be done when opening the project
+for the first time or alternatively via the left bar -\> Projects -\>
+Build Settings -\> Execute CMake. You have to specify CMake arguments
+and the build dir. CMake arguments can be the following:
+
+    -DCMAKE_BUILD_TYPE=Debug
+
+The build dir should be set to something like /trunk/build for the debug
+build and /trunk/buildrel for the release build. For cleaning the build
+dir a command like "make clean" may be not enough. Better way is to
+delete the build dir, re-create it and re-execute CMake. Steps for
+cleaning can be configured in the Projects tab as well.
+
+## Debugging
+
+There is a problem with QtCreator when debugging both vcmiclient and
+vcmiserver. If you debug the vcmiclient, start a game, attach the
+vcmiserver process to the gdb debugger(Debug \> Start Debugging \>
+Attach to Running External Application...) then breakpoints which are
+set for vcmiserver will be ignored. This looks like a bug, in any case
+it's not intuitively. Two workarounds are available luckily:
+
+1\) Run vcmiclient (no debug mode), then attach server process to the
+debugger
+
+2\) Open two instances of QtCreator and debug vcmiserver and vcmiclient
+separately(it works!)