mirror of
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81 lines
2.8 KiB
Markdown
81 lines
2.8 KiB
Markdown
# Getting Started
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Once Slint is built, you can use it in your CMake application or library target in two steps:
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1. Associate the `.slint` files that you'd like to use by calling the `slint_target_sources` cmake command. The first parameter is
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your application (or library) CMake target, and the parameters following are the names of the `.slint` files. This will result in the
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`.slint` files to be compiled into C++ source code.
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2. The generated C++ source code also needs the Slint run-time library. This dependency is satisfied by linking `Slint::Slint`
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into your target with the `target_link_libraries` command.
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A typical example looks like this:
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```cmake
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cmake_minimum_required(VERSION 3.19)
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project(my_application LANGUAGES CXX)
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# Note: Use find_package(Slint) instead of the following three commands,
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# if you prefer the package approach.
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include(FetchContent)
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FetchContent_Declare(
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Slint
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GIT_REPOSITORY https://github.com/slint-ui/slint.git
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GIT_TAG release/0.2
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SOURCE_SUBDIR api/cpp
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)
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FetchContent_MakeAvailable(Slint)
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add_executable(my_application main.cpp)
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slint_target_sources(my_application my_application_ui.slint)
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target_link_libraries(my_application PRIVATE Slint::Slint)
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```
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Suppose `my_application_ui.slint` was a "Hello World" like this:
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```slint,ignore
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HelloWorld := Window {
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width: 400px;
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height: 400px;
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// Declare an alias that exposes the label's text property to C++
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property my_label <=> label.text;
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label := Text {
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y: parent.width / 2;
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x: parent.x + 200px;
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text: "Hello, world";
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color: blue;
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}
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}
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```
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then you can use the following code in you `main` function to show the [`Window`](markdown/builtin_elements.md#window)
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and change the text:
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```cpp
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#include "my_application_ui.h"
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int main(int argc, char **argv)
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{
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auto hello_world = HelloWorld::create();
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hello_world->set_my_label("Hello from C++");
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// Show the window and spin the event loop until the window is closed.
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hello_world->run();
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return 0;
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}
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```
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This works because the Slint compiler translated `my_application_ui.slint` to C++ code, in the `my_application_ui.h`
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header file. That generated code has a C++ class that corresponds to the `HelloWorld` element and has API to create
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the ui, read or write properties or set callbacks. You can learn more about how this API looks like in general in the
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[](generated_code.md) section.
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## Tutorial
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For an in-depth walk-through, you may be interested in reading our walk-through <a href="../tutorial/cpp">Slint Memory Game Tutorial Tutorial</a>.
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It will guide you through the `.slint` mark-up language and the C++ API by building a little memory game.
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## Template
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You can clone the [Template Repository](https://github.com/slint-ui/slint-cpp-template) repository with
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the code of a minimal C++ application using Slint that can be used as a starting point to your program.
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