desgui.core.draw source code

1 /+
2 The MIT License (MIT)
3 
4     Copyright (c) <2013> <Oleg Butko (deviator), Anton Akzhigitov (Akzwar)>
5 
6     Permission is hereby granted, free of charge, to any person obtaining a copy
7     of this software and associated documentation files (the "Software"), to deal
8     in the Software without restriction, including without limitation the rights
9     to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
10     copies of the Software, and to permit persons to whom the Software is
11     furnished to do so, subject to the following conditions:
12 
13     The above copyright notice and this permission notice shall be included in
14     all copies or substantial portions of the Software.
15 
16     THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17     IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18     FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
19     AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
20     LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21     OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
22     THE SOFTWARE.
23 +/
24 
25 module desgui.core.draw;
26 
27 public import desmath.linear.vector;
28 public import desil.rect;
29 
30 import desil;
31 
32 interface DiViewport
33 {
34     @property irect rect() const;
35     @property vec2 offset() const;
36     @property vec2 scale() const;
37 
38     /++ перевод координат локальные +/
39     final vec2 mapToLocal(T)( in T crd ) const 
40         if( isCompVector!(2,float,T) )
41     { 
42         vec2 r = crd - rect.pos - offset;
43         r.x /= scale.x;
44         r.y /= scale.y;
45         return r;
46     }
47 
48     final vec2 mapToParent(T)( in T crd ) const
49         if( isCompVector!(2,float,T) )
50     {
51         vec2 r = crd;
52         r.x *= scale.x;
53         r.y *= scale.y;
54         return r + offset + rect.pos;
55     }
56 }
57 
58 interface DiDrawStack
59 {
60     irect push( in DiViewport );
61     void pull();
62 }
63 
64 interface DiDrawable { void draw(); }
65 interface DiAnimate { void idle( float dt ); }
66 
67 interface DiShapeDrawable : DiDrawable
68 { void reshape( in irect ); }
69 
70 interface DiNovemShapeDrawable : DiShapeDrawable
71 {
72     @property
73     {
74         DiShapeDrawable[9] elems();
75         ivec2 corner() const;
76     }
77 
78     final void draw() 
79     { foreach( e; elems ) if( e !is null ) e.draw(); }
80 
81     final void reshape( in irect r )
82     {
83         irect rect = r;
84 
85         if( rect.w < corner.x * 2 ) rect.w = corner.x * 2;
86         if( rect.h < corner.y * 2 ) rect.h = corner.y * 2;
87 
88         if( elems[0] !is null ) elems[0].reshape( irect( rect.pos, corner ) );
89         if( elems[1] !is null ) elems[1].reshape( irect( rect.pos.x + corner.x, rect.pos.y, rect.w - corner.x*2, corner.y ) );
90         if( elems[2] !is null ) elems[2].reshape( irect( rect.pos.x + rect.w - corner.x, rect.pos.y, corner ) );
91 
92         if( elems[3] !is null ) elems[3].reshape( irect( rect.pos.x, rect.pos.y + corner.y, corner.x, rect.h - corner.y*2 ) );
93         if( elems[4] !is null ) elems[4].reshape( irect( rect.pos + corner, rect.size - corner*2 ) );
94         if( elems[5] !is null ) elems[5].reshape( irect( rect.pos.x + rect.w - corner.x, rect.pos.y + corner.y, corner.x, rect.h - corner.y*2 ) );
95 
96         if( elems[6] !is null ) elems[6].reshape( irect( rect.pos.x,                 rect.pos.y + rect.h - corner.y, corner ) );
97         if( elems[7] !is null ) elems[7].reshape( irect( rect.pos.x + corner.x,          rect.pos.y + rect.h - corner.y, rect.w - corner.x*2, corner.y ) );
98         if( elems[8] !is null ) elems[8].reshape( irect( rect.pos.x + rect.w - corner.x, rect.pos.y + rect.h - corner.y, corner ) );
99     }
100 }
101 
102 interface DiAnimateShape : DiShapeDrawable, DiAnimate 
103 {
104     /* workaround Issue 11796 */
105     void idle( float );
106     void draw();
107     void reshape( in irect ); 
108 }
109 
110 interface DiDrawRect : DiShapeDrawable
111 {
112     enum UseTexture
113     {
114         NONE = cast(int)0,
115         ALPHA = 1,
116         FULL = 2
117     }
118 
119     @property
120     {
121         ref UseTexture useTexture();
122         ref const(UseTexture) useTexture() const;
123 
124         irect rect() const;
125         final void rect( in irect r ) { reshape( r ); }
126 
127         col4 color() const;
128         void color( in col4 );
129     }
130 
131     /* workaround Issue 11796 */
132     void draw();
133     void reshape( in irect ); 
134 
135     void image( in Image );
136     void image( in ImageReadAccess );
137 }
138 
139 //TODO: path, line, circle, etc
140 
141 interface DiDrawFactory
142 {
143     @property DiDrawRect rect();
144     //TODO: path, line, circle, etc
145 }