//------------------------------------------------------------------------------
void HudTextureElement::init()
{
Texture * tex_object = s_texturemanager.getResource(texture_name_);
if (!tex_object) return;
osg::ref_ptr<osg::Texture2D> tex = tex_object->getOsgTexture();
osg::ref_ptr<osg::Image> image = tex->getImage();
aspect_ratio_ = (float)image->s() / image->t();
tex->setFilter(osg::Texture2D::MIN_FILTER,osg::Texture2D::LINEAR);
tex->setFilter(osg::Texture2D::MAG_FILTER,osg::Texture2D::LINEAR);
tex->setBorderColor(osg::Vec4(0,0,0,0));
tex->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_BORDER);
tex->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_BORDER);
getOrCreateStateSet()->setTextureAttributeAndModes(0,tex.get(),osg::StateAttribute::ON);
setUseDisplayList(false);
setUseVertexBufferObjects(true);
addPrimitiveSet(new osg::DrawArrays(GL_QUADS,0,4));
Color color = s_params.get<Color> ("hud." + section_ + ".color");
osg::Vec2Array* texcoord = new osg::Vec2Array(4);
setTexCoordArray(0,texcoord);
osg::Vec4Array * osg_color = new osg::Vec4Array(1);
(*osg_color)[0].set(color.r_, color.g_, color.b_, color.a_);
setColorArray(osg_color);
setColorBinding(osg::Geometry::BIND_OVERALL);
(*texcoord)[0].set(0,0);
(*texcoord)[1].set(1,0);
(*texcoord)[2].set(1,1);
(*texcoord)[3].set(0,1);
s_scene_manager.addObserver(ObserverCallbackFun0(this, &HudTextureElement::onResolutionChanged),
SOE_RESOLUTION_CHANGED,
&fp_group_);
onResolutionChanged();
}
Widget::Widget(const std::string& name, point_type w, point_type h):
_parent (0),
_index (0),
_layer (LAYER_LOW),
_padLeft (0.0f),
_padRight (0.0f),
_padTop (0.0f),
_padBottom (0.0f),
_valign (VA_CENTER),
_halign (HA_CENTER),
_coordMode (CM_ABSOLUTE),
_canFill (false),
_canClone (true),
_isManaged (false),
_isStyled (false),
_minWidth (0.0f),
_minHeight (0.0f) {
_name = name.size() ? name : generateRandomName("Widget");
if(!_norms.valid()) {
_norms = new PointArray(1);
(*_norms)[0].set(0.0f, 0.0f, 1.0f);
(*_norms)[0].normalize();
}
TexCoordArray* texs = new TexCoordArray(4);
// Fill our texture coordinates with null stuff for now, since we aren't using them
// until an Image is set at some later point.
std::fill(texs->begin(), texs->end(), osg::Vec2(0.0f, 0.0f));
setUseDisplayList(false);
setDataVariance(osg::Object::DYNAMIC);
setVertexArray(new PointArray(4));
setColorArray(new ColorArray(4));
setNormalArray(_norms.get());
setTexCoordArray(0, texs);
setNormalBinding(osg::Geometry::BIND_OVERALL);
setColorBinding(osg::Geometry::BIND_PER_VERTEX);
addPrimitiveSet(new osg::DrawArrays(osg::PrimitiveSet::QUADS, 0, 4));
setDimensions(0.0f, 0.0f, w, h);
setColor(1.0f, 1.0f, 1.0f, 1.0f);
}
//------------------------------------------------------------------------------
void HudBar::updateVb()
{
// Recreate buffers to reflect new size
osg::Vec3Array * vertex = new osg::Vec3Array(4); // vec3 or computeBounds will complain
setVertexArray(vertex);
osg::Vec2Array* texcoord = new osg::Vec2Array(4);
setTexCoordArray(0,texcoord);
Vector2d pos;
float size;
getPositionAndSize(pos, size);
switch (fill_direction_)
{
case HBFD_LEFT_RIGHT:
(*vertex)[0].set(pos.x_, pos.y_, 0.0f);
(*vertex)[1].set(pos.x_+size*aspect_ratio_*value_, pos.y_, 0.0f);
(*vertex)[2].set(pos.x_+size*aspect_ratio_*value_, pos.y_+size, 0.0f);
(*vertex)[3].set(pos.x_, pos.y_+size, 0.0f);
(*texcoord)[0].set(0,0);
(*texcoord)[1].set(value_,0);
(*texcoord)[2].set(value_,1);
(*texcoord)[3].set(0,1);
break;
case HBFD_RIGHT_LEFT:
(*vertex)[0].set(pos.x_+size*aspect_ratio_*(1.0f-value_), pos.y_, 0.0f);
(*vertex)[1].set(pos.x_+size*aspect_ratio_, pos.y_, 0.0f);
(*vertex)[2].set(pos.x_+size*aspect_ratio_, pos.y_+size, 0.0f);
(*vertex)[3].set(pos.x_+size*aspect_ratio_*(1.0f-value_), pos.y_+size, 0.0f);
(*texcoord)[0].set(1-value_, 0);
(*texcoord)[1].set(1, 0);
(*texcoord)[2].set(1, 1);
(*texcoord)[3].set(1-value_, 1);
break;
case HBFD_TOP_DOWN:
(*vertex)[0].set(pos.x_, pos.y_+size*(1.0f-value_), 0.0f);
(*vertex)[1].set(pos.x_+size*aspect_ratio_, pos.y_+size*(1.0f-value_), 0.0f);
(*vertex)[2].set(pos.x_+size*aspect_ratio_, pos.y_+size, 0.0f);
(*vertex)[3].set(pos.x_, pos.y_+size, 0.0f);
(*texcoord)[0].set(0,1-value_);
(*texcoord)[1].set(1,1-value_);
(*texcoord)[2].set(1,1);
(*texcoord)[3].set(0,1);
break;
case HBFD_BOTTOM_UP:
(*vertex)[0].set(pos.x_, pos.y_, 0.0f);
(*vertex)[1].set(pos.x_+size*aspect_ratio_, pos.y_, 0.0f);
(*vertex)[2].set(pos.x_+size*aspect_ratio_, pos.y_+size*value_, 0.0f);
(*vertex)[3].set(pos.x_, pos.y_+size*value_, 0.0f);
(*texcoord)[0].set(0,0);
(*texcoord)[1].set(1,0);
(*texcoord)[2].set(1,value_);
(*texcoord)[3].set(0,value_);
break;
}
}
