276 lines
9.7 KiB
C++
276 lines
9.7 KiB
C++
/* OpenSceneGraph example, osgtext.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <osg/ArgumentParser>
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#include <osg/Material>
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#include <osg/PositionAttitudeTransform>
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#include <osg/io_utils>
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#include <osgDB/ReadFile>
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#include <osgDB/WriteFile>
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#include <osgGA/StateSetManipulator>
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#include <osgViewer/Viewer>
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#include <osgViewer/ViewerEventHandlers>
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#include <osgText/Text3D>
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#include "TextNode.h"
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class Text3DAttributeHandler : public osgGA::GUIEventHandler
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{
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public:
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Text3DAttributeHandler(osgText::Text3D* aText3D)
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: m_Text3D(aText3D)
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{
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}
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~Text3DAttributeHandler()
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{
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}
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virtual bool handle(const osgGA::GUIEventAdapter& ea, osgGA::GUIActionAdapter&)
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{
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if (ea.getEventType() == osgGA::GUIEventAdapter::KEYUP)
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{
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if (ea.getKey() == osgGA::GUIEventAdapter::KEY_Up)
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{
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m_Text3D->setCharacterSize(m_Text3D->getCharacterHeight() + 0.1);
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OSG_NOTICE<<"m_Text3D->getCharacterHeight() = " << m_Text3D->getCharacterHeight() << std::endl;
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}
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else if (ea.getKey() == osgGA::GUIEventAdapter::KEY_Down)
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{
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m_Text3D->setCharacterDepth(m_Text3D->getCharacterDepth() + 0.1);
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OSG_NOTICE<<"m_Text3D->getCharacterDepth() = " << m_Text3D->getCharacterDepth() << std::endl;
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}
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else if (ea.getKey() == osgGA::GUIEventAdapter::KEY_Left)
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{
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static int counter = 1;
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if (counter%3 == 0)
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m_Text3D->setText("Press arrow keys.", osgText::String::ENCODING_UTF8);
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else if (counter%3 == 1)
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m_Text3D->setText("setText\nworks!", osgText::String::ENCODING_UTF8);
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else if (counter%3 == 2)
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m_Text3D->setText("setText really works?", osgText::String::ENCODING_UTF8);
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else if (counter%3 == 3)
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m_Text3D->setText("setText works, really!", osgText::String::ENCODING_UTF8);
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++counter;
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OSG_NOTICE<<"m_Text3D->getText().size() = " << m_Text3D->getText().size() << std::endl;
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}
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else if (ea.getKey() == osgGA::GUIEventAdapter::KEY_Right)
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{
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m_Text3D->setLineSpacing(m_Text3D->getLineSpacing() + 0.1);
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OSG_NOTICE<<"m_Text3D->getLineSpacing() = " << m_Text3D->getLineSpacing() << std::endl;
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}
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}
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return false;
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}
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private:
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osgText::Text3D* m_Text3D;
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};
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int main(int argc, char** argv)
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{
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osg::ArgumentParser arguments(&argc, argv);
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osgViewer::Viewer viewer(arguments);
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std::string fontFile("arial.ttf");
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while(arguments.read("-f",fontFile)) {}
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osg::ref_ptr<osgText::Font> font = osgText::readRefFontFile(fontFile);
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if (!font) return 1;
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OSG_NOTICE<<"Read font "<<fontFile<<" font="<<font.get()<<std::endl;
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std::string word("Press arrow keys.");
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while (arguments.read("-w",word)) {}
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osg::ref_ptr<osgText::Style> style = new osgText::Style;
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float thickness = 0.1f;
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while(arguments.read("--thickness",thickness)) {}
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style->setThicknessRatio(thickness);
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// set up any bevel if required
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float r;
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osg::ref_ptr<osgText::Bevel> bevel;
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while(arguments.read("--rounded",r)) { bevel = new osgText::Bevel; bevel->roundedBevel2(r); }
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while(arguments.read("--rounded")) { bevel = new osgText::Bevel; bevel->roundedBevel2(0.25); }
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while(arguments.read("--flat",r)) { bevel = new osgText::Bevel; bevel->flatBevel(r); }
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while(arguments.read("--flat")) { bevel = new osgText::Bevel; bevel->flatBevel(0.25); }
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while(arguments.read("--bevel-thickness",r)) { if (bevel.valid()) bevel->setBevelThickness(r); }
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if (bevel.valid())
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{
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while(arguments.read("--smooth-concave-Junctions") || arguments.read("--scj"))
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{
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bevel->setSmoothConcaveJunctions(true);
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}
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}
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style->setBevel(bevel.get());
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// set up outline.
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while(arguments.read("--outline",r)) { style->setOutlineRatio(r); }
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viewer.addEventHandler( new osgGA::StateSetManipulator(viewer.getCamera()->getOrCreateStateSet()) );
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viewer.addEventHandler(new osgViewer::StatsHandler);
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#if 1
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osg::ref_ptr<osg::Group> group = new osg::Group;
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float characterSize = 1.0f;
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while(arguments.read("--size",characterSize)) {}
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if (arguments.read("--2d"))
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{
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osgText::Text* text2D = new osgText::Text;
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text2D->setFont(font.get());
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text2D->setCharacterSize(characterSize);
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text2D->setFontResolution(256,256);
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text2D->setDrawMode(osgText::Text::TEXT | osgText::Text::BOUNDINGBOX);
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text2D->setAxisAlignment(osgText::Text::XZ_PLANE);
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text2D->setText(word);
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osg::Geode* geode = new osg::Geode;
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geode->addDrawable(text2D);
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group->addChild(geode);
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}
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if (arguments.read("--TextNode"))
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{
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// experimental text node
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osgText::TextNode* text = new osgText::TextNode;
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text->setFont(font.get());
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text->setStyle(style.get());
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text->setTextTechnique(new osgText::TextTechnique);
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text->setText(word);
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text->update();
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group->addChild(text);
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}
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else if (!arguments.read("--no-3d"))
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{
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osgText::Text3D* text3D = new osgText::Text3D;
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// Does not help
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text3D->setDataVariance(osg::Object::DYNAMIC);
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text3D->setFont(font.get());
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text3D->setStyle(style.get());
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text3D->setCharacterSize(characterSize);
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text3D->setDrawMode(osgText::Text3D::TEXT | osgText::Text3D::BOUNDINGBOX);
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text3D->setAxisAlignment(osgText::Text3D::XZ_PLANE);
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text3D->setText(word);
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osg::Geode* geode = new osg::Geode;
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geode->addDrawable(text3D);
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group->addChild(geode);
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osg::Vec4 color(1.0f, 1.0f, 1.0f, 1.0f);
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while(arguments.read("--color",color.r(),color.g(),color.b(),color.a()))
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{
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OSG_NOTICE<<"--color "<<color<<std::endl;
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text3D->setColor(color);
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}
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std::string imageFilename;
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while(arguments.read("--image",imageFilename))
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{
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OSG_NOTICE<<"--image "<<imageFilename<<std::endl;
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osg::ref_ptr<osg::Image> image = osgDB::readRefImageFile(imageFilename);
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if (image.valid())
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{
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OSG_NOTICE<<" loaded image "<<imageFilename<<std::endl;
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osg::StateSet* stateset = text3D->getOrCreateStateSet();
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stateset->setTextureAttributeAndModes(0, new osg::Texture2D(image), osg::StateAttribute::ON);
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}
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}
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while(arguments.read("--wall-color",color.r(),color.g(),color.b(),color.a()))
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{
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osg::StateSet* stateset = text3D->getOrCreateWallStateSet();
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osg::Material* material = new osg::Material;
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material->setDiffuse(osg::Material::FRONT_AND_BACK, color);
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stateset->setAttribute(material);
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}
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while(arguments.read("--wall-image",imageFilename))
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{
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osg::ref_ptr<osg::Image> image = osgDB::readRefImageFile(imageFilename);
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if (image.valid())
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{
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osg::StateSet* stateset = text3D->getOrCreateWallStateSet();
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stateset->setTextureAttributeAndModes(0, new osg::Texture2D(image), osg::StateAttribute::ON);
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}
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}
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while(arguments.read("--back-color",color.r(),color.g(),color.b(),color.a()))
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{
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osg::StateSet* stateset = text3D->getOrCreateBackStateSet();
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osg::Material* material = new osg::Material;
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material->setDiffuse(osg::Material::FRONT_AND_BACK, color);
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stateset->setAttribute(material);
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}
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while(arguments.read("--back-image",imageFilename))
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{
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osg::ref_ptr<osg::Image> image = osgDB::readRefImageFile(imageFilename);
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if (image)
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{
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osg::StateSet* stateset = text3D->getOrCreateBackStateSet();
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stateset->setTextureAttributeAndModes(0, new osg::Texture2D(image), osg::StateAttribute::ON);
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}
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}
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if (arguments.read("--size-quad"))
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{
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geode->addDrawable( osg::createTexturedQuadGeometry(osg::Vec3(0.0f,characterSize*thickness,0.0f),osg::Vec3(characterSize,0.0,0.0),osg::Vec3(0.0f,0.0,characterSize), 0.0, 0.0, 1.0, 1.0) );
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}
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if (arguments.read("--add-axes"))
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{
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group->addChild(osgDB::readRefNodeFile("axes.osgt"));
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}
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std::string mode;
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if (arguments.read("--character-size-mode", mode))
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{
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if (mode == "screen_coords")
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{
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text3D->setCharacterSizeMode(osgText::TextBase::SCREEN_COORDS);
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text3D->setCharacterSize(1080/4);
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}
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}
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viewer.addEventHandler(new Text3DAttributeHandler(text3D));
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}
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viewer.setSceneData(group);
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#endif
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return viewer.run();
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}
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