ryzom/client/src/interface_v3/group_in_scene.cpp

   1 // Ryzom - 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  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
  21
  22
  23
  24
  25 #include "stdpch.h"
  26
  27 #include "group_in_scene.h"
  28 #include "interface_manager.h"
  29 #include "nel/gui/view_renderer.h"
  30 #include "nel/misc/xml_auto_ptr.h"
  31
  32 using namespace std;
  33 using namespace NLMISC;
  34
  35 extern CMatrix  MainSceneViewMatrix;
  36 extern CMatrix  InvMainSceneViewMatrix;
  37
  38
  39 // ***************************************************************************
  40 const float CGroupInScene::NearDrawClip= 1.f;
  41
  42
  43 // ***************************************************************************
  44 NLMISC_REGISTER_OBJECT(CViewBase, CGroupInScene, std::string, "in_scene");
  45
  46 REGISTER_UI_CLASS(CGroupInScene)
  47
  48 CGroupInScene::CGroupInScene(const TCtorParam &param)
  49 : CInterfaceGroup(param)
  50 {
  51         // Group in scene must update each frame
  52         _NeedFrameUpdatePos= true;
  53
  54         _OffsetX = 0;
  55         _OffsetY = 0;
  56
  57         Scale= 1;
  58         _UserScale= false;
  59
  60         _ZBias= 0.f;
  61
  62         Position= CVector::Null;
  63
  64         _ProjCenter= CVector::Null;
  65         _IsGroupInScene = true;
  66 }
  67
  68 // ***************************************************************************
  69 CGroupInScene::~CGroupInScene()
  70 {
  71 }
  72
  73 // ***************************************************************************
  74 void CGroupInScene::computeWindowPos(sint32 &newX, sint32 &newY, CVector &newProjCenter)
  75 {
  76         // don't change X/Y by default
  77         newX= _X;
  78         newY= _Y;
  79         newProjCenter.x= float(_X) - _OffsetX;
  80         newProjCenter.y= float(_Y) - _OffsetY;
  81
  82         if(getActive())
  83         {
  84                 CViewRenderer &pVR = *CViewRenderer::getInstance();
  85                 nlassert(isValidDouble(Position.x) && isValidDouble(Position.y) && isValidDouble(Position.z));
  86                 CVector tmp = MainSceneViewMatrix * Position;
  87                 if (tmp.y>=0.001)
  88                 {
  89                         tmp = pVR.getFrustum().projectZ (tmp);
  90
  91                         // Get the width and height
  92                         uint32 width, height;
  93                         CViewRenderer::getInstance()->getScreenSize(width, height);
  94                         tmp.x *= width;
  95                         tmp.y *= height;
  96
  97                         // position without offset, in float
  98                         newProjCenter.x= tmp.x;
  99                         newProjCenter.y= tmp.y;
 100
 101                         // Set the current Z
 102                         newProjCenter.z = -tmp.z;
 103                         _DepthForZSort= newProjCenter.z;
 104                         // Add ZBias (only if won't be clipped)
 105                         if(newProjCenter.z > NearDrawClip)
 106                         {
 107                                 newProjCenter.z+= getZBias();
 108                                 const float     zthreshold= 0.01f;
 109                                 newProjCenter.z= max(newProjCenter.z, pVR.getFrustum().Near+zthreshold);
 110                                 newProjCenter.z= max(newProjCenter.z, NearDrawClip + zthreshold);
 111                         }
 112
 113                         // Set the position
 114                         newX = (sint)floor (tmp.x+0.5f) + _OffsetX;
 115                         newY = (sint)floor (tmp.y+0.5f) + _OffsetY;
 116                 }
 117                 else
 118                 {
 119                         _DepthForZSort= newProjCenter.z = tmp.y;
 120                 }
 121         }
 122         else
 123         {
 124                 _DepthForZSort= newProjCenter.z = -1.f;
 125         }
 126
 127         nlassert (isValidDouble (newProjCenter.z));
 128 }
 129
 130 // ***************************************************************************
 131 void CGroupInScene::updateCoords()
 132 {
 133         // Get the x and the y
 134         computeWindowPos(_X, _Y, _ProjCenter);
 135
 136         CInterfaceGroup::updateCoords();
 137 }
 138
 139 // ***************************************************************************
 140 void CGroupInScene::onFrameUpdateWindowPos (sint dx, sint dy)
 141 {
 142         // I am the root group, so I decide of the new window position.
 143         sint32  newX, newY;
 144         computeWindowPos(newX, newY, _ProjCenter);
 145
 146         dx= newX - _X;
 147         dy= newY - _Y;
 148
 149         // Change the X and Y only here
 150         _X= newX;
 151         _Y= newY;
 152
 153         // CInterfaceGroup::onFrameUpdateWindowPos will apply the delta on XReal / YReal
 154         CInterfaceGroup::onFrameUpdateWindowPos(dx, dy);
 155 }
 156
 157 // ***************************************************************************
 158 void CGroupInScene::draw()
 159 {
 160         H_AUTO( RZ_Interface_CGroupInScene_draw )
 161
 162         if (_ProjCenter.z > NearDrawClip)
 163         {
 164                 CViewRenderer &pVR = *CViewRenderer::getInstance();
 165
 166                 // Set the current Z, and projCenter / scale
 167                 if(_UserScale)
 168                         pVR.setInterfaceDepth (_ProjCenter, Scale);
 169                 else
 170                         pVR.setInterfaceDepth (_ProjCenter, 1);
 171
 172                 CInterfaceGroup::draw();
 173         }
 174 }
 175
 176 // ***************************************************************************
 177
 178 bool CGroupInScene::parse (xmlNodePtr cur,  CInterfaceGroup *parent)
 179 {
 180         if (!CInterfaceGroup::parse (cur,  parent))
 181                 return false;
 182
 183         CXMLAutoPtr ptr;
 184
 185         _OffsetX = 0;
 186         ptr = xmlGetProp (cur, (xmlChar*)"in_scene_offset_x");
 187         if (ptr)
 188                 fromString((const char*)ptr, _OffsetX);
 189         _OffsetY = 0;
 190         ptr = xmlGetProp (cur, (xmlChar*)"in_scene_offset_y");
 191         if (ptr)
 192                 fromString((const char*)ptr, _OffsetY);
 193         _UserScale= false;
 194         ptr = xmlGetProp (cur, (xmlChar*)"user_scale");
 195         if (ptr)
 196                 _UserScale= convertBool(ptr);
 197
 198         return true;
 199 }
 200
 201 // ***************************************************************************
 202 void CGroupInScene::setUserScale(bool swd)
 203 {
 204         _UserScale= swd;
 205 }
 206
 207 // ***************************************************************************
 208 void CGroupInScene::serial(NLMISC::IStream &f)
 209 {
 210         CInterfaceGroup::serial(f);
 211         f.serial(_OffsetX);
 212         f.serial(_OffsetY);
 213         f.serial(_UserScale);
 214 }
 215
 216