1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/* OpenSceneGraph example, osgfxbrowser.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "Frame.h"
#include <osgText/Text>
namespace osgfxbrowser {
Frame::Frame()
: osg::Geode(),
bgcolor_(0.5f, 0.5f, 0.5f, 1.0f),
rect_(0, 0, 100, 100),
caption_("Frame")
{
}
Frame::Frame(const Frame ©, const osg::CopyOp ©op)
: osg::Geode(copy, copyop),
bgcolor_(copy.bgcolor_),
rect_(copy.rect_),
caption_(copy.caption_)
{
}
void Frame::rebuild()
{
float zPos = -0.1f;
removeDrawables(0, getNumDrawables());
addDrawable(build_quad(rect_, bgcolor_));
addDrawable(build_quad(Rect(rect_.x0 + 4, rect_.y1 - 24, rect_.x1 - 4, rect_.y1 - 4), osg::Vec4(0, 0, 0, bgcolor_.w()), false, zPos));
osg::ref_ptr<osgText::Text> caption_text = new osgText::Text;
caption_text->setText(caption_);
caption_text->setColor(osg::Vec4(1, 1, 1, 1));
caption_text->setAlignment(osgText::Text::CENTER_CENTER);
caption_text->setFont("fonts/arial.ttf");
caption_text->setCharacterSize(16);
caption_text->setFontResolution(16, 16);
caption_text->setPosition(osg::Vec3((rect_.x0 + rect_.x1) / 2, rect_.y1 - 15, zPos*2.0f));
addDrawable(caption_text.get());
rebuild_client_area(Rect(rect_.x0 + 4, rect_.y0 + 4, rect_.x1 - 4, rect_.y1 - 28));
}
osg::Geometry *Frame::build_quad(const Rect &rect, const osg::Vec4 &color, bool shadow, float z)
{
const float shadow_space = 8;
const float shadow_size = 10;
osg::ref_ptr<osg::Geometry> geo = new osg::Geometry;
osg::ref_ptr<osg::Vec3Array> vx = new osg::Vec3Array;
vx->push_back(osg::Vec3(rect.x0, rect.y0, z));
vx->push_back(osg::Vec3(rect.x1, rect.y0, z));
vx->push_back(osg::Vec3(rect.x1, rect.y1, z));
vx->push_back(osg::Vec3(rect.x0, rect.y1, z));
if (shadow) {
vx->push_back(osg::Vec3(rect.x0+shadow_space, rect.y0-shadow_size, z));
vx->push_back(osg::Vec3(rect.x1+shadow_size, rect.y0-shadow_size, z));
vx->push_back(osg::Vec3(rect.x1, rect.y0, z));
vx->push_back(osg::Vec3(rect.x0+shadow_space, rect.y0, z));
vx->push_back(osg::Vec3(rect.x1, rect.y1-shadow_space, z));
vx->push_back(osg::Vec3(rect.x1, rect.y0, z));
vx->push_back(osg::Vec3(rect.x1+shadow_size, rect.y0-shadow_size, z));
vx->push_back(osg::Vec3(rect.x1+shadow_size, rect.y1-shadow_space, z));
}
geo->setVertexArray(vx.get());
osg::ref_ptr<osg::Vec4Array> clr = new osg::Vec4Array;
clr->push_back(color);
clr->push_back(color);
clr->push_back(color);
clr->push_back(color);
if (shadow) {
float alpha = color.w() * 0.5f;
const osg::Vec3 black(0, 0, 0);
clr->push_back(osg::Vec4(black, 0));
clr->push_back(osg::Vec4(black, 0));
clr->push_back(osg::Vec4(black, alpha));
clr->push_back(osg::Vec4(black, alpha));
clr->push_back(osg::Vec4(black, alpha));
clr->push_back(osg::Vec4(black, alpha));
clr->push_back(osg::Vec4(black, 0));
clr->push_back(osg::Vec4(black, 0));
}
geo->setColorArray(clr.get(), osg::Array::BIND_PER_VERTEX);
geo->addPrimitiveSet(new osg::DrawArrays(GL_QUADS, 0, shadow? 12: 4));
return geo.release();
}
}
|
