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OSG+CEGUI+lua 程序框架OpenSceneGraph-2.8.2+CEGUI-0.6.2-vc9

http://blog.csdn.net/pizi0475

痞子龙3D编程

CEGuiDrawable.h

#pragma once

#include <osg/Drawable>

class CEGuiDrawable :

 public osg::Drawable

{

public:

 CEGuiDrawable();

 CEGuiDrawable(const CEGuiDrawable& drawable,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY):

 Drawable(drawable,copyop) {}

 META_Object(osg,CEGuiDrawable);

 //初始话CEGUI，添加所需要的资源以及设定相关的属性

 void InitCEGUI();

 //Drawable纯虚函数，实现OpenGL渲染时必须重写

 void drawImplementation(osg::RenderInfo& renderInfo) const;

protected:

 //析构函数。在结束时释放资源

 virtual ~CEGuiDrawable();

 unsigned int m_activeContextID;

};

CEGuiDrawable.cpp

#include "StdAfx.h"

#include "CEGuiDrawable.h"

#include "CEGuiEventCallback.h"

#include <ScriptingModules/CEGUILua/LuaScriptModule/include/CEGUILua.h>

CEGuiDrawable::CEGuiDrawable()

{

 setSupportsDisplayList(false);

 setEventCallback(new CEGuiEventCallback());

    new CEGUI::System( new CEGUI::OpenGLRenderer(0));

 m_activeContextID = 0;

}

void CEGuiDrawable::drawImplementation(osg::RenderInfo& renderInfo) const

{

 osg::State& state = *renderInfo.getState();

 if (state.getContextID()!=m_activeContextID) return;

 glPushAttrib(GL_ALL_ATTRIB_BITS);

 state.disableAllVertexArrays();

 //在每帧渲染后调用

 CEGUI::System::getSingleton().renderGUI();

 glPopAttrib();

 state.checkGLErrors("CEGuiDrawable::drawImplementation");

}

void CEGuiDrawable::InitCEGUI()

{

 using namespace CEGUI;

 // 初始化资源目录

 DefaultResourceProvider* rp = static_cast<DefaultResourceProvider*>

  (System::getSingleton().getResourceProvider());

 rp->setResourceGroupDirectory("schemes", "ceguiDataFiles/schemes/");

 rp->setResourceGroupDirectory("imagesets", "ceguiDataFiles/imagesets/");

 rp->setResourceGroupDirectory("fonts", "ceguiDataFiles/fonts/");

 rp->setResourceGroupDirectory("layouts", "ceguiDataFiles/layouts/");

 rp->setResourceGroupDirectory("looknfeels", "ceguiDataFiles/looknfeel/");

 rp->setResourceGroupDirectory("lua_scripts", "ceguiDataFiles/lua_scripts/");

 // 设置资源组

 Imageset::setDefaultResourceGroup("imagesets");

 Font::setDefaultResourceGroup("fonts");

 Scheme::setDefaultResourceGroup("schemes");

 WidgetLookManager::setDefaultResourceGroup("looknfeels");

 WindowManager::setDefaultResourceGroup("layouts");

 ScriptModule::setDefaultResourceGroup("lua_scripts");

 // 加载Lua脚本

 LuaScriptModule* script = new LuaScriptModule();

 System::getSingleton().setScriptingModule(script);

 System::getSingleton().executeScriptFile("GuiScript.lua");

}

CEGuiDrawable::~CEGuiDrawable()

{

 delete CEGUI::System::getSingleton().getScriptingModule();

}

CEGuiEventCallback.h

#pragma once

class CEGuiEventCallback :

 public osgGA::GUIEventHandler

{

public:

 CEGuiEventCallback(void);

 ~CEGuiEventCallback(void);

 virtual bool handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa, osg::Object* obj, osg::NodeVisitor* nv);

};

CEGuiEventCallback.cpp

#include "StdAfx.h"

#include "CEGuiEventCallback.h"

#include "CEGuiDrawable.h"

CEGuiEventCallback::CEGuiEventCallback(void)

{

}

CEGuiEventCallback::~CEGuiEventCallback(void)

{

}

bool CEGuiEventCallback::handle(const osgGA::GUIEventAdapter& ea,osgGA::GUIActionAdapter& aa, osg::Object* obj, osg::NodeVisitor* nv)

{

 osgGA::EventVisitor* ev = dynamic_cast<osgGA::EventVisitor*>(nv);

 CEGuiDrawable* cd = dynamic_cast<CEGuiDrawable*>(obj);

 if (!ev || !cd) return false;

 switch(ea.getEventType())

 {

 case(osgGA::GUIEventAdapter::DRAG):

 case(osgGA::GUIEventAdapter::MOVE):

  CEGUI::System::getSingleton().injectMousePosition(ea.getX(),ea.getWindowHeight()- ea.getY());

  return true;

 case(osgGA::GUIEventAdapter::PUSH):

  {

   CEGUI::System::getSingleton().injectMousePosition(ea.getX(), ea.getWindowHeight()- ea.getY());

   if (ea.getButton() == osgGA::GUIEventAdapter::LEFT_MOUSE_BUTTON)  // left

    CEGUI::System::getSingleton().injectMouseButtonDown(CEGUI::LeftButton);

   else if (ea.getButton() == osgGA::GUIEventAdapter::MIDDLE_MOUSE_BUTTON)  // middle

    CEGUI::System::getSingleton().injectMouseButtonDown(CEGUI::MiddleButton);

   else if (ea.getButton() == osgGA::GUIEventAdapter::RIGHT_MOUSE_BUTTON)  // right

    CEGUI::System::getSingleton().injectMouseButtonDown(CEGUI::RightButton);

   return true;

  }

 case(osgGA::GUIEventAdapter::RELEASE):

  {

   CEGUI::System::getSingleton().injectMousePosition(ea.getX(), ea.getWindowHeight()- ea.getY());

   if (ea.getButton() == osgGA::GUIEventAdapter::LEFT_MOUSE_BUTTON)  // left

    CEGUI::System::getSingleton().injectMouseButtonUp(CEGUI::LeftButton);

   else if (ea.getButton() == osgGA::GUIEventAdapter::MIDDLE_MOUSE_BUTTON)  // middle

    CEGUI::System::getSingleton().injectMouseButtonUp(CEGUI::MiddleButton);

   else if (ea.getButton() == osgGA::GUIEventAdapter::RIGHT_MOUSE_BUTTON)  // right

    CEGUI::System::getSingleton().injectMouseButtonUp(CEGUI::RightButton);

   return true;

  }

 case(osgGA::GUIEventAdapter::DOUBLECLICK):

  {

   CEGUI::System::getSingleton().injectMousePosition(ea.getX(), ea.getWindowHeight()- ea.getY());

   if (ea.getButton() == osgGA::GUIEventAdapter::LEFT_MOUSE_BUTTON)  // left

    CEGUI::System::getSingleton().injectMouseButtonDown(CEGUI::LeftButton);

   else if (ea.getButton() == osgGA::GUIEventAdapter::MIDDLE_MOUSE_BUTTON)  // middle

    CEGUI::System::getSingleton().injectMouseButtonDown(CEGUI::MiddleButton);

   else if (ea.getButton() == osgGA::GUIEventAdapter::RIGHT_MOUSE_BUTTON)  // right

    CEGUI::System::getSingleton().injectMouseButtonDown(CEGUI::RightButton);

   return true;

  }

 case(osgGA::GUIEventAdapter::KEYDOWN):

  CEGUI::System::getSingleton().injectKeyDown( static_cast<CEGUI::uint>(ea.getKey()) );

  CEGUI::System::getSingleton().injectChar( static_cast<CEGUI::utf32>( ea.getKey() ) );

  return true;

 case(osgGA::GUIEventAdapter::KEYUP):

  CEGUI::System::getSingleton().injectKeyUp( static_cast<CEGUI::uint>(ea.getKey()) );

  return true;

 default:

  break;

 }

 return false;

}

main.cpp

#include <osgDB/ReadFile>

#include <osgUtil/Optimizer>

#include <osgViewer/Viewer>

#include <osg/CoordinateSystemNode>

#include <osgGA/GUIEventAdapter>

#include <CEGUI.h>

#include <CEGUISystem.h>

#include <RendererModules/OpenGLGUIRenderer/openglrenderer.h>

#include <CEGUIScriptModule.h>

#include <CEGUIFontManager.h>

#include <CEGUISchemeManager.h>

#include <CEGUIWindowManager.h>

#include <CEGUIExceptions.h>

#include <CEGUIImagesetManager.h>

#include <CEGUIFontManager.h>

#include <CEGUIDefaultResourceProvider.h>

// OsgCeguiFirst.cpp : 定义控制台应用程序的入口点。

//

#include "stdafx.h"

#include "CEGuiDrawable.h"

using namespace osg;

using namespace osgDB;

using namespace osgViewer;

int _tmain(int argc, _TCHAR* argv[])

{

 // 创建OSG场景的根结点

 osg::ref_ptr<osg::Group> rootNode = new osg::Group;

 osgViewer::Viewer viewer;

 // CEGUI只支持单线程

 viewer.setThreadingModel(osgViewer::Viewer::SingleThreaded);

 // 初始化OpenGL环境

 viewer.realize();

 viewer.getCamera()->getGraphicsContext()->makeCurrent();

 // 初始化CEGUI

 osg::ref_ptr<osg::Geode> ceguiGeode = new osg::Geode;

 osg::ref_ptr<CEGuiDrawable> ceguiDraw = new CEGuiDrawable();

 ceguiDraw->InitCEGUI();

 ceguiGeode->addDrawable(ceguiDraw);

 // 加载模型

 osg::ref_ptr<osg::Node> model = osgDB::readNodeFile("osgDataFiles//cow.osg");

 rootNode->addChild(model);

 rootNode->addChild(ceguiGeode);

 // 设置数据并渲染

 viewer.setSceneData(rootNode.get());

 viewer.run();

}

GuiScript.lua

-----------------------------------------

-- Start of handler functions

-----------------------------------------

function luabtnOK_clicked(e)  

local we = CEGUI.toWindowEventArgs(e)  

we.window:setText("OK clicked");  

end

function luabtnCancel_clicked(e)  

local we = CEGUI.toWindowEventArgs(e)  

we.window:setText("Cancel clicked");  

end

-----------------------------------------

-- Script Entry Point

-----------------------------------------

local guiSystem = CEGUI.System:getSingleton()

local schemeMgr = CEGUI.SchemeManager:getSingleton()

local winMgr = CEGUI.WindowManager:getSingleton()

-- load our demo8 scheme

schemeMgr:loadScheme("TaharezLook.scheme");

-- load our demo8 window layout

local root = winMgr:loadWindowLayout("Cegui.layout")

-- set the layout as the root

guiSystem:setGUISheet(root)

-- set default mouse cursor

guiSystem:setDefaultMouseCursor("TaharezLook", "MouseArrow")

-- set the Tooltip type

guiSystem:setDefaultTooltip("TaharezLook/Tooltip")

Cegui.layout

<?xml version="1.0" encoding="UTF-8"?>

<GUILayout >

    <Window Type="DefaultWindow" Name="Root" >

        <Property Name="InheritsAlpha" Value="False" />

        <Property Name="UnifiedMaxSize" Value="{{1,0},{1,0}}" />

        <Property Name="UnifiedAreaRect" Value="{{0,0},{0,0},{1,0},{1,0}}" />

        <Window Type="TaharezLook/FrameWindow" Name="Hello" >

            <Property Name="Text" Value="Hello World!" />

            <Property Name="Alpha" Value="0.75" />

            <Property Name="TitlebarFont" Value="Commonwealth-10" />

            <Property Name="UnifiedMaxSize" Value="{{1,0},{1,0}}" />

            <Property Name="TitlebarEnabled" Value="True" />

            <Property Name="UnifiedAreaRect" Value="{{0.279703,0},{0.275744,0},{0.656124,0},{0.608014,0}}" />

            <Window Type="TaharezLook/StaticText" Name="Hello/StaticText" >

                <Property Name="Font" Value="Commonwealth-10" />

                <Property Name="Text" Value="Welcome to OSG + CEGUI" />

                <Property Name="HorzFormatting" Value="WordWrapLeftAligned" />

                <Property Name="UnifiedMaxSize" Value="{{1,0},{1,0}}" />

                <Property Name="VertFormatting" Value="TopAligned" />

                <Property Name="UnifiedAreaRect" Value="{{0.043543,0},{0.217033,0},{0.967456,0},{0.679647,0}}" />

            </Window>

            <Window Type="TaharezLook/Button" Name="Hello/Ok" >

                <Property Name="Text" Value="OK" />

                <Property Name="UnifiedMaxSize" Value="{{1,0},{1,0}}" />

                <Property Name="UnifiedAreaRect" Value="{{0.19414,0},{0.750594,0},{0.432419,0},{0.897941,0}}" />

                <Event Name="Clicked" Function="luabtnOK_clicked" />

            </Window>

            <Window Type="TaharezLook/Button" Name="Hello/Cancel" >

                <Property Name="Font" Value="Commonwealth-10" />

                <Property Name="Text" Value="Cancel" />

                <Property Name="UnifiedMaxSize" Value="{{1,0},{1,0}}" />

                <Property Name="UnifiedAreaRect" Value="{{0.52738,0},{0.753934,0},{0.76566,0},{0.901281,0}}" />

                <Event Name="Clicked" Function="luabtnCancel_clicked" />

            </Window>

        </Window>

    </Window>

</GUILayout>

osg CEGUI lua 框架 system button fonts object
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