Example #1
0
        public ImGuiHelper(Game game)
        {
            this.game                = game;
            game.Keyboard.KeyDown   += Keyboard_KeyDown;
            game.Keyboard.KeyUp     += Keyboard_KeyUp;
            game.Keyboard.TextInput += Keyboard_TextInput;
            SetKeyMappings();
            var io = ImGui.GetIO();

            unsafe
            {
                io.GetNativePointer()->IniFilename = IntPtr.Zero;
            }
            Default = io.FontAtlas.AddDefaultFont();
            using (var stream = typeof(ImGuiHelper).Assembly.GetManifestResourceStream("LancerEdit.UILib.Roboto-Medium.ttf"))
            {
                var ttf = new byte[stream.Length];
                stream.Read(ttf, 0, ttf.Length);
                ttfPtr = Marshal.AllocHGlobal(ttf.Length);
                Marshal.Copy(ttf, 0, ttfPtr, ttf.Length);
                Noto = io.FontAtlas.AddFontFromMemoryTTF(ttfPtr, ttf.Length, 15);
            }
            using (var stream = typeof(ImGuiHelper).Assembly.GetManifestResourceStream("LancerEdit.UILib.checkerboard.png"))
            {
                checkerboard   = LibreLancer.ImageLib.Generic.FromStream(stream);
                CheckerboardId = RegisterTexture(checkerboard);
            }
            using (var stream = typeof(ImGuiHelper).Assembly.GetManifestResourceStream("LancerEdit.UILib.circle.png"))
            {
                circle   = LibreLancer.ImageLib.Generic.FromStream(stream);
                CircleId = RegisterTexture(circle);
            }
            unsafe
            {
                ImGuiExt.BuildFontAtlas((IntPtr)ImGuiNative.igGetIO()->FontAtlas);
            }
            FontTextureData texData = io.FontAtlas.GetTexDataAsAlpha8();

            fontTexture = new Texture2D(texData.Width, texData.Height, false, SurfaceFormat.R8);
            var bytes = new byte[texData.Width * texData.Height * texData.BytesPerPixel];

            unsafe
            {
                Marshal.Copy((IntPtr)texData.Pixels, bytes, 0, texData.Width * texData.Height * texData.BytesPerPixel);
            }
            fontTexture.SetData(bytes);
            fontTexture.SetFiltering(TextureFiltering.Linear);
            io.FontAtlas.SetTexID(FONT_TEXTURE_ID);
            io.FontAtlas.ClearTexData();
            textShader  = new Shader(vertex_source, text_fragment_source);
            colorShader = new Shader(vertex_source, color_fragment_source);
            dot         = new Texture2D(1, 1, false, SurfaceFormat.Color);
            var c = new Color4b[] { Color4b.White };

            dot.SetData(c);
            Theme.Apply();
        }