studio/src/plugins/core/Nel3DWidget/nel3d_widget.cpp

   1 // Ryzom Core MMORPG framework <http://dev.ryzom.com/projects/ryzom/>
   2 // Copyright (C) 2010  Winch Gate Property Limited
   3 //
   4 // This source file has been modified by the following contributors:
   5 // Copyright (C) 2013-2014  Laszlo KIS-ADAM (dfighter) <dfighter1985@gmail.com>
   6 //
   7 // This program is free software: you can redistribute it and/or modify
   8 // it under the terms of the GNU Affero General Public License as
   9 // published by the Free Software Foundation, either version 3 of the
  10 // License, or (at your option) any later version.
  11 //
  12 // This program is distributed in the hope that it will be useful,
  13 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 // GNU Affero General Public License for more details.
  16 //
  17 // You should have received a copy of the GNU Affero General Public License
  18 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  19
  20 #include "nel3d_widget.h"
  21 #include "nel/3d/u_driver.h"
  22 #include "nel/3d/text_context.h"
  23 #include "nel/3d/driver_user.h"
  24 #include "nel/misc/rgba.h"
  25 #include "nel/misc/path.h"
  26
  27 #ifdef NL_OS_WINDOWS
  28 #include <Windows.h>
  29 #endif
  30
  31 #include <QResizeEvent>
  32
  33 Nel3DWidget::Nel3DWidget( QWidget *parent ) :
  34 NEL3DWIDGET( parent )
  35 {
  36         driver = NULL;
  37         textContext = NULL;
  38
  39         // Need to set this attribute with a NULL paintengine returned to Qt
  40         // so that we can render the widget normally ourselves, without the image
  41         // disappearing when a widget is resized or shown on top of us
  42         setAttribute( Qt::WA_PaintOnScreen, true );
  43         setAttribute( Qt::WA_OpaquePaintEvent, true );
  44         setAttribute( Qt::WA_NoSystemBackground, true );
  45 }
  46
  47 Nel3DWidget::~Nel3DWidget()
  48 {
  49         if( driver != NULL )
  50         {
  51                 if( textContext != NULL )
  52                 {
  53                         driver->deleteTextContext( textContext );
  54                         textContext = NULL;
  55                 }
  56
  57                 driver->release();
  58                 delete driver;
  59                 driver = NULL;
  60         }
  61 }
  62
  63 void Nel3DWidget::init()
  64 {
  65         nlassert( driver == NULL );
  66
  67         driver = NL3D::UDriver::createDriver( 0, false, 0 );
  68         driver->setDisplay( winId(), NL3D::UDriver::CMode( width(), height(), 32, true ) );
  69 }
  70
  71 void Nel3DWidget::createTextContext( std::string fontFile )
  72 {
  73         if( driver == NULL )
  74                 return;
  75
  76         std::string font;
  77
  78         try
  79         {
  80                 font = NLMISC::CPath::lookup( fontFile );
  81         }
  82         catch( ... )
  83         {
  84                 nlinfo( "Font %s cannot be found, cannot create textcontext!", fontFile.c_str() );
  85                 exit( EXIT_FAILURE );
  86         }
  87
  88         if( textContext != NULL )
  89         {
  90                 driver->deleteTextContext( textContext );
  91                 textContext = NULL;
  92         }
  93
  94         textContext = driver->createTextContext( font );
  95 }
  96
  97 void Nel3DWidget::clear()
  98 {
  99         if( driver == NULL )
 100                 return;
 101         driver->clearBuffers( NLMISC::CRGBA::Black );
 102         driver->swapBuffers();
 103 }
 104
 105 void Nel3DWidget::showEvent( QShowEvent *evnt )
 106 {
 107         QWidget::showEvent( evnt );
 108
 109         if( driver != NULL )
 110                 driver->activate();
 111 }
 112
 113 void Nel3DWidget::resizeEvent( QResizeEvent *evnt )
 114 {
 115         QWidget::resizeEvent( evnt );
 116
 117         Q_EMIT( evnt->size().width(), evnt->size().height() );
 118 }
 119
 120 #if defined ( NL_OS_WINDOWS )
 121
 122 typedef bool ( *winProc )( NL3D::IDriver *driver, HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam );
 123
 124 bool Nel3DWidget::winEvent( MSG *message, long *result )
 125 {
 126         if( driver != NULL )
 127         {
 128                 NL3D::IDriver *iDriver = dynamic_cast< NL3D::CDriverUser* >( driver )->getDriver();
 129                 if( iDriver != NULL )
 130                 {
 131                         winProc proc = (winProc)iDriver->getWindowProc();
 132                         return proc( iDriver, message->hwnd, message->message, message->wParam, message->lParam );
 133                 }
 134         }
 135
 136         return false;
 137 }
 138
 139 #elif defined( NL_OS_MAC )
 140
 141 typedef bool ( *cocoaProc )( NL3D::IDriver *, const void *e );
 142
 143 bool Nel3DWidget::macEvent( EventHandlerCallRef caller, EventRef event )
 144 {
 145         if( caller )
 146                 nlerror( "You are using QtCarbon! Only QtCocoa supported, please upgrade Qt" );
 147
 148         if( driver != NULL )
 149         {
 150                 NL3D::IDriver *iDriver = dynamic_cast< NL3D::CDriverUser* >( driver )->getDriver();
 151                 if( iDriver != NULL )
 152                 {
 153                         cocoaProc proc = ( cocoaProc )iDriver->getWindowProc();
 154                         return proc( iDriver, event );
 155                 }
 156         }
 157
 158         return false;
 159 }
 160
 161 #elif defined( NL_OS_UNIX )
 162
 163 typedef bool ( *x11Proc )( NL3D::IDriver *drv, XEvent *e );
 164
 165 bool Nel3DWidget::x11Event( XEvent *event )
 166 {
 167         if( driver != NULL )
 168         {
 169                 NL3D::IDriver *iDriver = dynamic_cast< NL3D::CDriverUser* >( driver )->getDriver();
 170                 if( driver != NULL )
 171                 {
 172                         x11Proc proc = ( x11Proc )iDriver->getWindowProc();
 173                         return proc( iDriver, event );
 174                 }
 175         }
 176
 177         return false;
 178 }
 179 #endif
 180