fluid source code

1 /// Fluid is a somewhat minimalistic and declarative high-level UI library for D.
2 ///
3 /// Fluid aims to be as simple in usage as it can be making as much possible with no excess of code. It's built
4 /// empirically, making each component suitable for all the most common needs out of the box.
5 ///
6 /// ---
7 /// auto node = label("Hello, World!");
8 /// node.draw();
9 /// ---
10 module fluid;
11 
12 // Unsupported build flag; ignores checks. Do not file issue tickets if you run into problems when building with it.
13 debug (Fluid_Force) version = Fluid_Force;
14 version (Fluid_Force) { }
15 else {
16 
17     // OSX builds are not supported with DMD. LDC is required.
18     version (DigitalMars)
19     version (OSX) {
20 
21         static assert(false,
22             "Fluid: DMD is not supported under macOS because of compiler bugs. Refusing to build.\n"
23             ~ "    Please use LDC instead. When using dub, pass flag `--compiler=ldc2`.\n"
24             ~ "    To ignore this check, you can build with UNSUPPORTED version or debug version Fluid_Force.");
25 
26     }
27 }
28 
29 public import
30     fluid.backend,
31     fluid.actions,
32     fluid.button,
33     fluid.children,
34     fluid.default_theme,
35     fluid.file_input,
36     fluid.frame,
37     fluid.grid,
38     fluid.hover_button,
39     fluid.image_view,
40     fluid.input,
41     fluid.label,
42     fluid.map_space,
43     fluid.node,
44     fluid.onion_frame,
45     fluid.popup_button,
46     fluid.popup_frame,
47     fluid.scroll,
48     fluid.scroll_input,
49     fluid.size_lock,
50     fluid.slot,
51     fluid.space,
52     fluid.structs,
53     fluid.style,
54     fluid.text_input,
55     fluid.utils;
56 
57 unittest {
58 
59     auto root = onionFrame(
60         .layout!"fill",
61 
62         vframe(
63             label("Hello, World!"),
64             button("Some input", delegate { }),
65         ),
66 
67         hframe(
68             imageView("logo.png"),
69             textInput("Input text here"),
70         ),
71 
72         popupButton(
73             "Click me!",
74             vspace(
75                 hspace(.layout!"fill", vscrollInput()),
76                 hscrollFrame(label("Hello, World!")),
77             ),
78         ),
79     );
80 
81 }
82 
83 unittest {
84 
85     import std.math;
86 
87     auto io = new HeadlessBackend;
88     auto root = vspace(
89         .layout!"center",
90         label(.layout!"center", "Hello World from"),
91         imageView("./logo.png", Vector2(499, 240)),
92     );
93 
94     root.io = io;
95     root.draw();
96 
97     // This should render two textures
98     auto textTexture = io.textures.front;
99     io.textures.popFront;
100     auto imageView = io.textures.front;
101 
102     // Both textures should have the same bottom line
103     assert(textTexture.rectangle.end.y.isClose(imageView.rectangle.end.y));
104 
105 }