899e359cdb
git-svn-id: http://svn.openscenegraph.org/osg/OpenSceneGraph/trunk@14394 16af8721-9629-0410-8352-f15c8da7e697
438 lines
17 KiB
C++
438 lines
17 KiB
C++
/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2014 Robert Osfield
|
|
*
|
|
* This library is open source and may be redistributed and/or modified under
|
|
* the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
|
|
* (at your option) any later version. The full license is in LICENSE file
|
|
* included with this distribution, and on the openscenegraph.org website.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* OpenSceneGraph Public License for more details.
|
|
*/
|
|
|
|
#include <osgUI/Style>
|
|
#include <osg/io_utils>
|
|
#include <osg/Geode>
|
|
#include <osg/ShapeDrawable>
|
|
#include <osg/Depth>
|
|
#include <osg/TexGen>
|
|
#include <osg/AlphaFunc>
|
|
#include <osg/MatrixTransform>
|
|
#include <osg/ComputeBoundsVisitor>
|
|
#include <osgUtil/Optimizer>
|
|
#include <osgText/Text>
|
|
#include <osgDB/ReadFile>
|
|
|
|
using namespace osgUI;
|
|
|
|
osg::ref_ptr<Style>& Style::instance()
|
|
{
|
|
static osg::ref_ptr<Style> s_style = new Style;
|
|
return s_style;
|
|
}
|
|
|
|
OSG_INIT_SINGLETON_PROXY(StyleSingletonProxy, Style::instance())
|
|
|
|
Style::Style()
|
|
{
|
|
osg::ref_ptr<osg::Image> image = new osg::Image;
|
|
image->allocateImage(1,1,1,GL_RGBA, GL_FLOAT);
|
|
*(reinterpret_cast<osg::Vec4f*>(image->data(0,0,0))) = osg::Vec4f(1.0f, 1.0f, 1.0f, 1.0f);
|
|
|
|
_clipTexture = new osg::Texture2D;
|
|
_clipTexture->setImage(image.get());
|
|
_clipTexture->setBorderColor(osg::Vec4f(1.0f,1.0f,1.0f,0.0f));
|
|
_clipTexture->setWrap(osg::Texture::WRAP_S, osg::Texture::CLAMP_TO_BORDER);
|
|
_clipTexture->setWrap(osg::Texture::WRAP_T, osg::Texture::CLAMP_TO_BORDER);
|
|
_clipTexture->setFilter(osg::Texture::MIN_FILTER, osg::Texture::NEAREST);
|
|
_clipTexture->setFilter(osg::Texture::MAG_FILTER, osg::Texture::NEAREST);
|
|
|
|
//image = osgDB::readImageFile("Images/lz.rgb");
|
|
//_clipTexture->setImage(image.get());
|
|
|
|
_disabledDepthWrite = new osg::Depth(osg::Depth::LESS,0.0, 1.0,false);
|
|
_enabledDepthWrite = new osg::Depth(osg::Depth::LESS,0.0, 1.0,true);
|
|
_disableColorWriteMask = new osg::ColorMask(false, false, false, false);
|
|
}
|
|
|
|
Style::Style(const Style& style, const osg::CopyOp& copyop):
|
|
osg::Object(style, copyop),
|
|
_clipTexture(style._clipTexture)
|
|
{
|
|
}
|
|
|
|
osg::Node* Style::createPanel(const osg::BoundingBox& extents, const osg::Vec4& colour)
|
|
{
|
|
// OSG_NOTICE<<"createPanel"<<std::endl;
|
|
|
|
osg::ref_ptr<osg::Geometry> geometry = new osg::Geometry;
|
|
geometry->setName("Panel");
|
|
|
|
osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array;
|
|
geometry->setVertexArray(vertices.get());
|
|
|
|
vertices->push_back( osg::Vec3(extents.xMin(), extents.yMin(), extents.zMin()) );
|
|
vertices->push_back( osg::Vec3(extents.xMin(), extents.yMax(), extents.zMin()) );
|
|
vertices->push_back( osg::Vec3(extents.xMax(), extents.yMin(), extents.zMin()) );
|
|
vertices->push_back( osg::Vec3(extents.xMax(), extents.yMax(), extents.zMin()) );
|
|
|
|
osg::ref_ptr<osg::Vec4Array> colours = new osg::Vec4Array;
|
|
geometry->setColorArray(colours, osg::Array::BIND_OVERALL);
|
|
|
|
colours->push_back( colour );
|
|
|
|
geometry->addPrimitiveSet( new osg::DrawArrays(GL_TRIANGLE_STRIP, 0, 4) );
|
|
|
|
return geometry.release();
|
|
}
|
|
|
|
osg::Node* Style::createDepthSetPanel(const osg::BoundingBox& extents)
|
|
{
|
|
// OSG_NOTICE<<"createDepthSetPanel"<<std::endl;
|
|
|
|
osg::ref_ptr<osg::Geometry> geometry = new osg::Geometry;
|
|
geometry->setName("DepthSetPanel");
|
|
|
|
osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array;
|
|
geometry->setVertexArray(vertices.get());
|
|
|
|
vertices->push_back( osg::Vec3(extents.xMin(), extents.yMin(), extents.zMin()) );
|
|
vertices->push_back( osg::Vec3(extents.xMin(), extents.yMax(), extents.zMin()) );
|
|
vertices->push_back( osg::Vec3(extents.xMax(), extents.yMin(), extents.zMin()) );
|
|
vertices->push_back( osg::Vec3(extents.xMax(), extents.yMax(), extents.zMin()) );
|
|
|
|
geometry->addPrimitiveSet( new osg::DrawArrays(GL_TRIANGLE_STRIP, 0, 4) );
|
|
|
|
osg::ref_ptr<osg::StateSet> stateset = geometry->getOrCreateStateSet();
|
|
stateset->setAttributeAndModes( _enabledDepthWrite.get(), osg::StateAttribute::ON);
|
|
stateset->setAttributeAndModes( _disableColorWriteMask.get() );
|
|
|
|
return geometry.release();
|
|
}
|
|
|
|
osg::Node* Style::createFrame(const osg::BoundingBox& extents, const FrameSettings* frameSettings, const osg::Vec4& color)
|
|
{
|
|
// OSG_NOTICE<<"createFrame"<<std::endl;
|
|
|
|
osg::ref_ptr<osg::Geometry> geometry = new osg::Geometry;
|
|
geometry->setName("Frame");
|
|
|
|
float topScale = 1.0f;
|
|
float bottomScale = 1.0f;
|
|
float leftScale = 1.0f;
|
|
float rightScale = 1.0f;
|
|
|
|
if (frameSettings)
|
|
{
|
|
switch(frameSettings->getShadow())
|
|
{
|
|
case(FrameSettings::PLAIN):
|
|
// default settings are appropriate for PLAIN
|
|
break;
|
|
case(FrameSettings::SUNKEN):
|
|
topScale = 0.6f;
|
|
bottomScale = 1.2f;
|
|
leftScale = 0.8f;
|
|
rightScale = 0.8f;
|
|
break;
|
|
case(FrameSettings::RAISED):
|
|
topScale = 1.2f;
|
|
bottomScale = 0.6f;
|
|
leftScale = 0.8f;
|
|
rightScale = 0.8f;
|
|
break;
|
|
}
|
|
}
|
|
|
|
osg::Vec4 topColor(osg::minimum(color.r()*topScale,1.0f), osg::minimum(color.g()*topScale,1.0f), osg::minimum(color.b()*topScale,1.0f), color.a());
|
|
osg::Vec4 bottomColor(osg::minimum(color.r()*bottomScale,1.0f), osg::minimum(color.g()*bottomScale,1.0f), osg::minimum(color.b()*bottomScale,1.0f), color.a());
|
|
osg::Vec4 leftColor(osg::minimum(color.r()*leftScale,1.0f), osg::minimum(color.g()*leftScale,1.0f), osg::minimum(color.b()*leftScale,1.0f), color.a());
|
|
osg::Vec4 rightColor(osg::minimum(color.r()*rightScale,1.0f), osg::minimum(color.g()*rightScale,1.0f), osg::minimum(color.b()*rightScale,1.0f), color.a());
|
|
|
|
float lineWidth = frameSettings ? frameSettings->getLineWidth() : 1.0f;
|
|
|
|
osg::Vec3 outerBottomLeft(extents.xMin(), extents.yMin(), extents.zMin());
|
|
osg::Vec3 outerBottomRight(extents.xMax(), extents.yMin(), extents.zMin());
|
|
osg::Vec3 outerTopLeft(extents.xMin(), extents.yMax(), extents.zMin());
|
|
osg::Vec3 outerTopRight(extents.xMax(), extents.yMax(), extents.zMin());
|
|
|
|
osg::Vec3 innerBottomLeft(extents.xMin()+lineWidth, extents.yMin()+lineWidth, extents.zMin());
|
|
osg::Vec3 innerBottomRight(extents.xMax()-lineWidth, extents.yMin()+lineWidth, extents.zMin());
|
|
osg::Vec3 innerTopLeft(extents.xMin()+lineWidth, extents.yMax()-lineWidth, extents.zMin());
|
|
osg::Vec3 innerTopRight(extents.xMax()-lineWidth, extents.yMax()-lineWidth, extents.zMin());
|
|
|
|
osg::ref_ptr<osg::Vec3Array> vertices = new osg::Vec3Array;
|
|
geometry->setVertexArray(vertices.get());
|
|
|
|
vertices->push_back( outerBottomLeft ); // 0
|
|
vertices->push_back( outerBottomRight ); // 1
|
|
vertices->push_back( outerTopLeft ); // 2
|
|
vertices->push_back( outerTopRight ); // 3
|
|
|
|
vertices->push_back( innerBottomLeft ); // 4
|
|
vertices->push_back( innerBottomRight ); // 5
|
|
vertices->push_back( innerTopLeft ); // 6
|
|
vertices->push_back( innerTopRight ); // 7
|
|
|
|
osg::ref_ptr<osg::Vec4Array> colours = new osg::Vec4Array;
|
|
geometry->setColorArray(colours.get(), osg::Array::BIND_PER_PRIMITIVE_SET);
|
|
|
|
// bottom
|
|
{
|
|
colours->push_back(bottomColor);
|
|
|
|
osg::ref_ptr<osg::DrawElementsUShort> primitives = new osg::DrawElementsUShort(GL_TRIANGLE_STRIP);
|
|
geometry->addPrimitiveSet(primitives.get());
|
|
primitives->push_back(4);
|
|
primitives->push_back(0);
|
|
primitives->push_back(5);
|
|
primitives->push_back(1);
|
|
}
|
|
|
|
// top
|
|
{
|
|
colours->push_back(topColor);
|
|
|
|
osg::ref_ptr<osg::DrawElementsUShort> primitives = new osg::DrawElementsUShort(GL_TRIANGLE_STRIP);
|
|
geometry->addPrimitiveSet(primitives.get());
|
|
primitives->push_back(2);
|
|
primitives->push_back(6);
|
|
primitives->push_back(3);
|
|
primitives->push_back(7);
|
|
}
|
|
|
|
// left
|
|
{
|
|
colours->push_back(leftColor);
|
|
|
|
osg::ref_ptr<osg::DrawElementsUShort> primitives = new osg::DrawElementsUShort(GL_TRIANGLE_STRIP);
|
|
geometry->addPrimitiveSet(primitives.get());
|
|
primitives->push_back(2);
|
|
primitives->push_back(0);
|
|
primitives->push_back(6);
|
|
primitives->push_back(4);
|
|
}
|
|
|
|
// right
|
|
{
|
|
colours->push_back(rightColor);
|
|
|
|
osg::ref_ptr<osg::DrawElementsUShort> primitives = new osg::DrawElementsUShort(GL_TRIANGLE_STRIP);
|
|
geometry->addPrimitiveSet(primitives.get());
|
|
primitives->push_back(7);
|
|
primitives->push_back(5);
|
|
primitives->push_back(3);
|
|
primitives->push_back(1);
|
|
}
|
|
|
|
return geometry.release();
|
|
}
|
|
|
|
osg::Node* Style::createText(const osg::BoundingBox& extents, const AlignmentSettings* as, const TextSettings* ts, const std::string& text)
|
|
{
|
|
// OSG_NOTICE<<"createText"<<std::endl;
|
|
|
|
osg::Vec4 textColor(0.0f,0.0,0.0f,1.0);
|
|
|
|
osg::ref_ptr<osgText::Text> textDrawable = new osgText::Text;
|
|
textDrawable->setName("Text");
|
|
|
|
textDrawable->setText(text);
|
|
textDrawable->setEnableDepthWrites(false);
|
|
textDrawable->setColor(textColor);
|
|
|
|
if (ts)
|
|
{
|
|
textDrawable->setFont(ts->getFont());
|
|
textDrawable->setCharacterSize(ts->getCharacterSize());
|
|
}
|
|
|
|
AlignmentSettings::Alignment alignment = as ? as->getAlignment() : AlignmentSettings::CENTER_CENTER;
|
|
textDrawable->setAlignment(static_cast<osgText::TextBase::AlignmentType>(alignment));
|
|
|
|
switch(alignment)
|
|
{
|
|
case(AlignmentSettings::LEFT_TOP):
|
|
textDrawable->setPosition( osg::Vec3(extents.xMin(), extents.yMax(), extents.zMin()) );
|
|
break;
|
|
case(AlignmentSettings::LEFT_CENTER):
|
|
textDrawable->setPosition( osg::Vec3(extents.xMin(), (extents.yMin()+extents.yMax())*0.5f, extents.zMin()) );
|
|
break;
|
|
case(AlignmentSettings::LEFT_BOTTOM):
|
|
textDrawable->setPosition( osg::Vec3(extents.xMin(), extents.yMin(), extents.zMin()) );
|
|
break;
|
|
|
|
case(AlignmentSettings::CENTER_TOP):
|
|
textDrawable->setPosition( osg::Vec3((extents.xMin()+extents.xMax())*0.5f, extents.yMax(), extents.zMin()) );
|
|
break;
|
|
case(AlignmentSettings::CENTER_CENTER):
|
|
textDrawable->setPosition( osg::Vec3((extents.xMin()+extents.xMax())*0.5f, (extents.yMin()+extents.yMax())*0.5f, extents.zMin()) );
|
|
break;
|
|
case(AlignmentSettings::CENTER_BOTTOM):
|
|
textDrawable->setPosition( osg::Vec3((extents.xMin()+extents.xMax())*0.5f, extents.yMin(), extents.zMin()) );
|
|
break;
|
|
|
|
case(AlignmentSettings::RIGHT_TOP):
|
|
textDrawable->setPosition( osg::Vec3(extents.xMax(), extents.yMax(), extents.zMin()) );
|
|
break;
|
|
case(AlignmentSettings::RIGHT_CENTER):
|
|
textDrawable->setPosition( osg::Vec3(extents.xMax(), (extents.yMin()+extents.yMax())*0.5f, extents.zMin()) );
|
|
break;
|
|
case(AlignmentSettings::RIGHT_BOTTOM):
|
|
textDrawable->setPosition( osg::Vec3(extents.xMax(), extents.yMin(), extents.zMin()) );
|
|
break;
|
|
|
|
case(AlignmentSettings::LEFT_BASE_LINE):
|
|
OSG_NOTICE<<"Text : LEFT_BASE_LINE"<<std::endl;
|
|
textDrawable->setPosition( osg::Vec3(extents.xMin(), (extents.yMin()+extents.yMax())*0.5f-textDrawable->getCharacterHeight()*0.5f, extents.zMin()) );
|
|
break;
|
|
case(AlignmentSettings::CENTER_BASE_LINE):
|
|
textDrawable->setPosition( osg::Vec3((extents.xMin()+extents.xMax())*0.5f, (extents.yMin()+extents.yMax())*0.5f-textDrawable->getCharacterHeight()*0.5, extents.zMin()) );
|
|
break;
|
|
case(AlignmentSettings::RIGHT_BASE_LINE):
|
|
textDrawable->setPosition( osg::Vec3(extents.xMax(), (extents.yMin()+extents.yMax())*0.5f-textDrawable->getCharacterHeight()*0.5, extents.zMin()) );
|
|
break;
|
|
|
|
case(AlignmentSettings::LEFT_BOTTOM_BASE_LINE):
|
|
case(AlignmentSettings::CENTER_BOTTOM_BASE_LINE):
|
|
case(AlignmentSettings::RIGHT_BOTTOM_BASE_LINE):
|
|
|
|
default:
|
|
textDrawable->setPosition( osg::Vec3(extents.xMin(), extents.yMin(), extents.zMin()) );
|
|
break;
|
|
}
|
|
|
|
return textDrawable.release();
|
|
}
|
|
|
|
osg::Node* Style::createIcon(const osg::BoundingBox& extents, const std::string& filename, const osg::Vec4& color)
|
|
{
|
|
osg::ref_ptr<osg::Object> object = osgDB::readObjectFile(filename);
|
|
if (!object)
|
|
{
|
|
//OSG_NOTICE<<"Warning: Style::createIcon(.., "<<filename<<") could not find icon file."<<std::endl;
|
|
//return 0;
|
|
}
|
|
|
|
osg::ref_ptr<osg::Image> image = dynamic_cast<osg::Image*>(object.get());
|
|
if (image.valid())
|
|
{
|
|
osg::Vec3 center(extents.center());
|
|
float width = extents.xMax()-extents.xMin();
|
|
float height = extents.yMax()-extents.yMin();
|
|
float extentsAspectRatio = height/width;
|
|
|
|
float imageAspectRatio = static_cast<float>(image->t())/static_cast<float>(image->s());
|
|
if (imageAspectRatio>extentsAspectRatio) width *= (extentsAspectRatio/imageAspectRatio);
|
|
else height *= (imageAspectRatio/extentsAspectRatio);
|
|
|
|
osg::ref_ptr<osg::Geometry> geometry = osg::createTexturedQuadGeometry(osg::Vec3(center.x()-width*0.5f,center.y()-height*0.5f,center.z()),
|
|
osg::Vec3(width, 0.0f, 0.0f),
|
|
osg::Vec3(0.0f, height, 0.0f));
|
|
|
|
osg::ref_ptr<osg::Vec4Array> colors = new osg::Vec4Array;
|
|
colors->push_back(color);
|
|
geometry->setColorArray(colors.get(), osg::Array::BIND_OVERALL);
|
|
|
|
osg::ref_ptr<osg::Texture2D> texture = new osg::Texture2D(image.get());
|
|
|
|
osg::ref_ptr<osg::StateSet> stateset = geometry->getOrCreateStateSet();
|
|
stateset->setTextureAttributeAndModes(0, texture.get(), osg::StateAttribute::ON);
|
|
|
|
if (image->isImageTranslucent())
|
|
{
|
|
stateset->setMode(GL_BLEND, osg::StateAttribute::ON);
|
|
}
|
|
|
|
return geometry.release();
|
|
}
|
|
|
|
osg::ref_ptr<osg::Node> node = dynamic_cast<osg::Node*>(object.get());
|
|
if (!node)
|
|
{
|
|
OSG_NOTICE<<"Warning: Style::createIcon(.., "<<filename<<") could not find icon file."<<std::endl;
|
|
|
|
osg::ref_ptr<osg::ShapeDrawable> ds = new osg::ShapeDrawable(new osg::Sphere(osg::Vec3(0.0,0.0,0.0),1.0));
|
|
|
|
node = ds.get();
|
|
|
|
//return 0;
|
|
}
|
|
|
|
osg::ComputeBoundsVisitor cbv;
|
|
node->accept(cbv);
|
|
osg::BoundingBox bb = cbv.getBoundingBox();
|
|
osg::Vec3 bb_size(bb.xMax()-bb.xMin(), bb.zMax()-bb.zMin(), bb.zMax()-bb.zMin());
|
|
|
|
osg::Vec3 scale( (bb_size.x()>0) ? (extents.xMax()-extents.xMin())/bb_size.x() : 1.0f,
|
|
(bb_size.y()>0) ? (extents.yMax()-extents.yMin())/bb_size.y() : 1.0f,
|
|
(bb_size.z()>0) ? (extents.zMax()-extents.zMin())/bb_size.z() : 1.0f);
|
|
|
|
float minNonZeroScale = scale.x();
|
|
if (scale.y()!=0.0 && scale.y()<minNonZeroScale) minNonZeroScale = scale.y();
|
|
if (scale.z()!=0.0 && scale.z()<minNonZeroScale) minNonZeroScale = scale.z();
|
|
|
|
scale.set(minNonZeroScale, minNonZeroScale, minNonZeroScale);
|
|
|
|
// create Transform to rescale subgraph
|
|
osg::ref_ptr<osg::MatrixTransform> transform = new osg::MatrixTransform;
|
|
transform->setMatrix(osg::Matrix::translate(-bb.center()) *
|
|
osg::Matrix::scale(scale) *
|
|
osg::Matrix::translate(extents.center()));
|
|
|
|
|
|
transform->setDataVariance(osg::Transform::STATIC);
|
|
transform->addChild(node.get());
|
|
|
|
osg::ref_ptr<osg::Group> group = new osg::Group;
|
|
group->addChild(transform.get());
|
|
|
|
{
|
|
osgUtil::Optimizer::FlattenStaticTransformsVisitor fstv;
|
|
group->accept(fstv);
|
|
fstv.removeTransforms(group.get());
|
|
}
|
|
|
|
if (group->getNumChildren()==1)
|
|
{
|
|
node = group->getChild(0);
|
|
|
|
// remove references to avoid node from node being unreferenced afer the node ref_ptr<> is released().
|
|
group = 0;
|
|
transform = 0;
|
|
|
|
return node.release();
|
|
}
|
|
else
|
|
{
|
|
OSG_NOTICE<<"Warning: Style::createIcon(.., "<<filename<<"), error in creation of icon."<<std::endl;
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
void Style::setupDialogStateSet(osg::StateSet* stateset, int binNum)
|
|
{
|
|
stateset->setRenderBinDetails(binNum, "TraversalOrderBin", osg::StateSet::OVERRIDE_PROTECTED_RENDERBIN_DETAILS);
|
|
stateset->setMode( GL_LIGHTING, osg::StateAttribute::OFF );
|
|
stateset->setAttributeAndModes( _disabledDepthWrite.get(), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE );
|
|
stateset->setNestRenderBins(false);
|
|
}
|
|
|
|
void Style::setupClipStateSet(const osg::BoundingBox& extents, osg::StateSet* stateset)
|
|
{
|
|
unsigned int clipTextureUnit = 1;
|
|
|
|
stateset->setAttributeAndModes( new osg::AlphaFunc(osg::AlphaFunc::GREATER, 0.0f), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
|
|
|
|
stateset->setTextureAttributeAndModes( clipTextureUnit, _clipTexture.get(), osg::StateAttribute::ON | osg::StateAttribute::OVERRIDE);
|
|
|
|
osg::Matrixd matrix = osg::Matrixd::translate(osg::Vec3(-extents.xMin(), -extents.yMin(), -extents.zMin()))*
|
|
osg::Matrixd::scale(osg::Vec3(1.0f/(extents.xMax()-extents.xMin()), 1.0f/(extents.yMax()-extents.yMin()), 1.0f));
|
|
|
|
osg::ref_ptr<osg::TexGen> texgen = new osg::TexGen;
|
|
texgen->setPlanesFromMatrix(matrix);
|
|
texgen->setMode(osg::TexGen::OBJECT_LINEAR);
|
|
stateset->setTextureAttributeAndModes( clipTextureUnit, texgen.get(), osg::StateAttribute::ON);
|
|
}
|