Dlang UI

GUI for D programming language, written in D.

• Crossplatform (Win32 and Linux are supported in current version)
• Mostly inspired by Android UI API (layouts, styles, two phase layout, ...)
• Supports highly customizable UI themes and styles
• Supports internationalization
• Hardware acceleration using OpenGL (when built with USE_OPENGL)
• Fallback to Win32 API / XCB when OpenGL is not available
• Actually it's a port (with major refactoring) of GUI library for cross platform OpenGL based implementation of Cool Reader app prokeject from C++.
• Almost ready for 2D games development
• Goal: provide set of widgets suitable for building of IDE.

Win32 builds

• Under windows, uses Win32 API as backend.
• Optionally, may use OpenGL acceleration via DerelictGL3/WGL.
• Uses Win32 API for font rendering.
• Optinally can use FreeType for font rendering.

Linux builds

• Uses XCB (X C binding) as backend.
• Uses shared memory images for faster drawing.
• Uses FreeType for font rendering.
• TODO: Use FontConfig to get font list.
• TODO: OpenGL initializes ok, but images not visible on screen. Disabled temporary.

Other platforms

• Other platforms support may be added easy

Third party components used

• DerelictGL3 - for OpenGL support
• DerelictFT + FreeType library support under linux and optionally under Windows.
• DerelictFI + FreeImage library support for decoding of images
• WindowsAPI bindings from http://www.dsource.org/projects/bindings/wiki/WindowsApi (patched)
• XCB and X11 bindings (patched) TODO: provide links

Hello World

// main.d
import dlangui.all;
mixin DLANGUI_ENTRY_POINT;

/// entry point for dlangui based application
extern (C) int UIAppMain(string[] args) {
    // resource directory search paths
    string[] resourceDirs = [
        appendPath(exePath, "../res/"),   // for Visual D and DUB builds
        appendPath(exePath, "../../res/") // for Mono-D builds
    ];

    // setup resource directories - will use only existing directories
    drawableCache.setResourcePaths(resourceDirs);

        // optinally setup internatilnalization (if used)
    // setup i18n - look for i18n directory inside one of passed directories
    i18n.findTranslationsDir(resourceDirs);
    // select translation file - for english language
    i18n.load("en.ini"); //"ru.ini", "en.ini"

    // create window
    Window window = Platform.instance.createWindow("My Window", null);
        // create some widget to show in window
    window.mainWidget = (new Button()).text("Hello world"d);
        // show window
        window.show();
    // run message loop
    return Platform.instance.enterMessageLoop();
}