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Wednesday the 23rd of May 2012 @ 09:23am

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LibN2L N2L Home Older News Downloads Documentation (n2l5) Class Hierarchy Compound List File List n2l:: Members Functions Whole n2l:: Ref Documentation (libN2L-4) Class Hierarchy Compound List File List n2l:: Members Functions Whole n2l:: Ref Bugtracker Project Page Report a Bug Bug List Related Things Life 2130 Devel Game Journal

LibN2L-4 Library Code Reference Classes Compounds Files Members Method Index Full Reference cGuiApp.cpp Go to the documentation of this file. /************************************************************************ Nova-2 Library (libN2L, or simply n2l) Game development C++ Library Copyright (C) 2003 Aaron Cameron This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. 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 GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA A copy of the GNU Lesser General Public License has been provided with this library in the file 'COPYING'. Contact information for the author of this library has been provided with this library in the file 'AUTHOR'. ************************************************************************/ #include "gui/cGuiApp.h" #include "n2l/timing.h" #include "n2l/gui.h" #include "n2l/video.h" #include "n2l/renderTools.h" #include "GL/gl.h" namespace n2l { /**************************************************************************/ cGuiApp::cGuiApp( const cAutoPtr<cGuiCanvas> &ioCanvas ) { if (!ioCanvas.isSet()) throw cBadDataUseException( "cGuiApp::cGuiApp", "Provided canvas is null" ); mCanvas = ioCanvas; mKeepRunning = new tBool; } /**************************************************************************/ cGuiApp::~cGuiApp() { } /**************************************************************************/ const cAutoPtr<cGuiACSetVar<tBool> > cGuiApp::newQuitAction() { return new cGuiACSetVar<tBool>( mKeepRunning, false, true ); } /**************************************************************************/ void cGuiApp::run() { mUsingMouseMap = cEventManager::getMouseMapCoordinates( mOldTopLeft, mOldBottomRight ); // Set the mapping to the size of the canvas cEventManager::mouseMapCoordinates( tMousePos(0,0), mCanvas->size() ); if (mCanvas->size().x()<0.0001f || mCanvas->size().y()<0.0001f) throw cBadDataUseException( "cGuiApp::run", "Base canvas provided has no size from which to derive " "running paramters." ); // Configure the projection. cROrthoProjection ortho( 0.0, tDouble(mCanvas->size().x()), tDouble(mCanvas->size().y()), 0.0, 0.0, 1.0 ); glMatrixMode( GL_PROJECTION ); glPushMatrix(); glMatrixMode( GL_MODELVIEW ); glPushMatrix(); *mKeepRunning = true; mSystemQuitEvent = false; tUint now,lastPass = n2lGetTicks(); while (*mKeepRunning) { now = n2lGetTicks(); // Update the canvas in time. const tUint MSecondsPassed = now-lastPass; mCanvas->update( MSecondsPassed ); // Update other methods that might want them. for (tUpdateList::const_iterator i = mUpdateList.begin(); i!=mUpdateList.end(); ++i ) { (*i)(MSecondsPassed); } // Handle any outstanding events cAutoPtr<const cEventInterface> event; while (cEventManager::popEvent(event)) { switch ( event->type() ) { case EventType_Quit: *mKeepRunning = false; mSystemQuitEvent = true; break; default: break; } // switch // Send the event to the canvas mCanvas->systemEvent( event ); // Forward events to other methods that might want them. for (tSysFuncList::const_iterator i = mSysFuncList.begin(); i!=mSysFuncList.end(); ++i ) { (*i)(event); } } // while popping events. glMatrixMode( GL_PROJECTION ); glLoadIdentity(); ortho.render(); glMatrixMode( GL_MODELVIEW ); glLoadIdentity(); glClearDepth( 0.0f ); if (mClearBuffer.isSet()) { glClear( GL_DEPTH_BUFFER_BIT ); glDrawBuffer( GL_BACK ); mClearBuffer->drawPixels(); } else { glClearColor( 0.0f, 0.0f, 0.0f, 0.0f ); glClear( GL_DEPTH_BUFFER_BIT | GL_COLOR_BUFFER_BIT ); } for (tDrawList::const_iterator i = mPreDrawList.begin(); i!=mPreDrawList.end(); ++i ) { (*i)(); } mCanvas->draw(); for (tDrawList::const_iterator i = mPostDrawList.begin(); i!=mPostDrawList.end(); ++i ) { (*i)(); } GLenum error; while ( (error=glGetError()) != GL_NO_ERROR ) throw cOpenGLException( "cGuiApp::run","",error ); cOpenGLDisplay::currentDisplay()->flip(); lastPass = now; n2lDelay(5); } glMatrixMode( GL_PROJECTION ); glPopMatrix(); glMatrixMode( GL_MODELVIEW ); glPopMatrix(); if (mUsingMouseMap) cEventManager::mouseMapCoordinates( mOldTopLeft, mOldBottomRight ); } /**************************************************************************/ void cGuiApp::addSystemEventFunction( void (*iFunc)(const cAutoPtr<const cEventInterface>&) ) { mSysFuncList.push_back( iFunc ); } /**************************************************************************/ void cGuiApp::addUpdateLoopFunction( void (*iFunc)(const tUint) ) { mUpdateList.push_back( iFunc ); } /**************************************************************************/ void cGuiApp::addPreDrawFunction( void (*iFunc)(void) ) { mPreDrawList.push_back( iFunc ); } /**************************************************************************/ void cGuiApp::addPostDrawFunction( void (*iFunc)(void) ) { mPostDrawList.push_back( iFunc ); } }

©2012 Aaron Cameron