w4d.widget.mdi.client source code

1 // Written in the D programming language.
2 /++
3  + Authors: KanzakiKino
4  + Copyright: KanzakiKino 2018
5  + License: LGPL-3.0
6 ++/
7 module w4d.widget.mdi.client;
8 import w4d.layout.gravity,
9        w4d.layout.lineup,
10        w4d.layout.split,
11        w4d.parser.colorset,
12        w4d.style.rect,
13        w4d.style.scalar,
14        w4d.task.window,
15        w4d.widget.mdi.host,
16        w4d.widget.mdi.titlebar,
17        w4d.widget.mdi.window,
18        w4d.widget.base,
19        w4d.widget.button,
20        w4d.widget.panel,
21        w4d.widget.text,
22        w4d.exception;
23 import g4d.ft.font,
24        g4d.glfw.cursor;
25 import gl3n.linalg;
26 import std.algorithm;
27 
28 /// A client widget for MDI.
29 class MdiClientWidget : PanelWidget, MdiClient
30 {
31     mixin TitleBar;
32 
33     protected MdiHostWidget _host;
34 
35     protected TitleBarWidget _titlebar;
36 
37     protected PanelWidget _contents;
38     /// Contents widget.
39     @property contents () { return _contents; }
40 
41     ///
42     this ()
43     {
44         super();
45 
46         _host = null;
47 
48         _titlebar = new TitleBarWidget;
49         addChild( _titlebar );
50 
51         _contents = new PanelWidget;
52         _contents.style.box.size.width  = Scalar.Auto;
53         _contents.style.box.size.height = Scalar.Auto;
54         addChild( _contents );
55 
56         _maxSize = vec2(int.max,int.max);
57         _minSize = vec2(0,0);
58 
59         _pos  = vec2(0,0);
60         _size = vec2(320,240);
61 
62         parseColorSetsFromFile!"colorset/mdiclient.yaml"( style );
63         style.box.paddings    = Rect(1.mm);
64         style.box.borderWidth = Rect(1.pixel);
65         setLayout!VerticalSplitLayout;
66     }
67 
68     mixin WindowOperations;
69 
70     ///
71     @property Widget widget ()
72     {
73         return cast(Widget) this;
74     }
75     ///
76     void setHost ( MdiHostWidget host )
77     {
78         _host = host;
79     }
80 
81     /// Changes title text.
82     void loadText ( dstring v, FontFace face = null )
83     {
84         _titlebar._title.loadText( v, face );
85     }
86 
87     ///
88     override void requestLayout ()
89     {
90         super.requestLayout();
91         requestRedraw();
92     }
93     ///
94     override vec2 layout ( vec2 basept, vec2 size )
95     {
96         _size.x = _size.x.clamp( minSize.x, min( maxSize.x, size.x ) );
97         _size.y = _size.y.clamp( minSize.y, min( maxSize.y, size.y ) );
98 
99         _pos.x = _pos.x.clamp( 0, size.x-_size.x );
100         _pos.y = _pos.y.clamp( 0, size.y-_size.y );
101 
102         return super.layout( basept+_pos, _size );
103     }
104 
105     ///
106     override @property bool trackable () { return true; }
107 }