Files
OpenSceneGraph/examples/osgfxbrowser/Frame.cpp
Robert Osfield 43f0efd6d2 Reorganised the Group::removeChild and Geode::removeDrawable methods so
that removeChild(Node*), removeChild(uint) and equivilant Geode methods are
now inline methods, not designed to be overriden, and seperated out the
multiple remove method to be called removeChildren(uint, uint) which is
now the only virtual method.  There removeChildren is now the method to
override in subclasses.

This reorganisation requires some call code to be rename removeChild usage
to removeChildren.
2006-05-02 09:45:31 +00:00

102 lines
3.1 KiB
C++

#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 &copy, const osg::CopyOp &copyop)
: 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());
geo->setColorBinding(osg::Geometry::BIND_PER_VERTEX);
geo->addPrimitiveSet(new osg::DrawArrays(GL_QUADS, 0, shadow? 12: 4));
return geo.take();
}
}