nanogui.common source code

1 ///
2 module nanogui.common;
3 
4 import gfm.math : vec2i, vec2f, vec3f, vec4f, vec4i;
5 public import arsd.nanovega : NVGContext, NVGColor;
6 public import arsd.nanovega;
7 
8 alias Vector2i = vec2i;
9 alias Vector2f = vec2f;
10 alias Vector3f = vec3f;
11 alias Vector4i = vec4i;
12 alias Color = vec4f;
13 
14 enum MouseButton : int
15 {
16 	None      =  0,
17 	Left      =  1,
18 	Right     =  2,
19 	Middle    =  4,
20 	WheelUp   =  8,
21 	WheelDown = 16, 
22 }
23 
24 enum MouseAction : int
25 {
26 	Press   = 0,
27 	Release = 1,
28 	Motion  = 2,
29 }
30 
31 enum KeyAction : int
32 {
33 	Press   = 0,
34 	Release = 1,
35 	Repeat  = 2,
36 }
37 
38 enum KeyMod : int
39 {
40 	Shift = 1,
41 	Alt,
42 	Ctrl,
43 }
44 
45 enum Key : int
46 {
47 	Left,
48 	Right,
49 	Up,
50 	Down,
51 	Home,
52 	End,
53 	Backspace,
54 	Delete,
55 	Enter,
56 	Shift,
57 	System,
58 	A,
59 	X,
60 	C,
61 	V,
62 }
63 
64 /// Cursor shapes available to use in nanogui.  Shape of actual cursor determined by Operating System.
65 enum Cursor {
66 	Arrow = 0,  /// The arrow cursor.
67 	IBeam,      /// The I-beam cursor.
68 	Crosshair,  /// The crosshair cursor.
69 	Hand,       /// The hand cursor.
70 	HResize,    /// The horizontal resize cursor.
71 	VResize,    /// The vertical resize cursor.
72 }
73 
74 /// Sets current fill style to a solid color.
75 /// Group: render_styles
76 public void fillColor (NVGContext ctx, Color color) nothrow @trusted @nogc {
77   NVGColor clr = void;
78   clr.rgba = color[];
79   clr.rgba[] /= 255f;
80   arsd.nanovega.fillColor(ctx, clr);
81 }
82 
83 /** Creates and returns a box gradient. Box gradient is a feathered rounded rectangle, it is useful for rendering
84  * drop shadows or highlights for boxes. Parameters (x, y) define the top-left corner of the rectangle,
85  * (w, h) define the size of the rectangle, r defines the corner radius, and f feather. Feather defines how blurry
86  * the border of the rectangle is. Parameter icol specifies the inner color and ocol the outer color of the gradient.
87  * The gradient is transformed by the current transform when it is passed to [fillPaint] or [strokePaint].
88  *
89  * Group: paints
90  */
91 public NVGPaint boxGradient (NVGContext ctx, in float x, in float y, in float w, in float h, in float r, in float f, Color icol, Color ocol) nothrow @trusted @nogc
92 {
93 	NVGColor clr1 = void, clr2 = void;
94 	clr1.rgba = icol[];
95 	clr1.rgba[] /= 255f;
96 	clr2.rgba = ocol[];
97 	clr2.rgba[] /= 255f;
98 	return arsd.nanovega.boxGradient(ctx, x, y, w, h, r, f, clr1, clr2);
99 }
100 
101 /** Creates and returns a linear gradient. Parameters `(sx, sy) (ex, ey)` specify the start and end coordinates
102  * of the linear gradient, icol specifies the start color and ocol the end color.
103  * The gradient is transformed by the current transform when it is passed to [fillPaint] or [strokePaint].
104  *
105  * Group: paints
106  */
107 public NVGPaint linearGradient (NVGContext ctx, in float sx, in float sy, in float ex, in float ey, Color icol, Color ocol) nothrow @trusted @nogc
108 {
109 	NVGColor clr1 = void, clr2 = void;
110 	clr1.rgba = icol[];
111 	clr1.rgba[] /= 255f;
112 	clr2.rgba = ocol[];
113 	clr2.rgba[] /= 255f;
114 	return arsd.nanovega.linearGradient(ctx, sx, sy, ex, ey, clr1, clr2);
115 }
116 
117 /** Creates and returns a radial gradient. Parameters (cx, cy) specify the center, inr and outr specify
118  * the inner and outer radius of the gradient, icol specifies the start color and ocol the end color.
119  * The gradient is transformed by the current transform when it is passed to [fillPaint] or [strokePaint].
120  *
121  * Group: paints
122  */
123 public NVGPaint radialGradient (NVGContext ctx, in float cx, in float cy, in float inr, in float outr, Color icol, Color ocol) nothrow @trusted @nogc {
124 	NVGColor clr1 = void, clr2 = void;
125 	clr1.rgba = icol[];
126 	clr1.rgba[] /= 255f;
127 	clr2.rgba = ocol[];
128 	clr2.rgba[] /= 255f;
129 	return arsd.nanovega.radialGradient(ctx, cx, cy, inr, outr, clr1, clr2);
130 }
131 
132 /// Sets current stroke style to a solid color.
133 /// Group: render_styles
134 public void strokeColor (NVGContext ctx, Color color) nothrow @trusted @nogc
135 {
136 	NVGColor clr = void;
137 	clr.rgba = color[];
138 	clr.rgba[] /= 255f;
139 	arsd.nanovega.strokeColor(ctx, clr);
140 }