1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/os/graphics/windowing/windowserver/nga/SERVER/ROOTWIN.CPP Fri Jun 15 03:10:57 2012 +0200
1.3 @@ -0,0 +1,288 @@
1.4 +// Copyright (c) 1995-2009 Nokia Corporation and/or its subsidiary(-ies).
1.5 +// All rights reserved.
1.6 +// This component and the accompanying materials are made available
1.7 +// under the terms of "Eclipse Public License v1.0"
1.8 +// which accompanies this distribution, and is available
1.9 +// at the URL "http://www.eclipse.org/legal/epl-v10.html".
1.10 +//
1.11 +// Initial Contributors:
1.12 +// Nokia Corporation - initial contribution.
1.13 +//
1.14 +// Contributors:
1.15 +//
1.16 +// Description:
1.17 +// Root window sub-class of CWsWindow
1.18 +//
1.19 +//
1.20 +
1.21 +#include "rootwin.h"
1.22 +#include <e32std.h>
1.23 +#include <graphics/wsscreendevice.h>
1.24 +#include "server.h"
1.25 +#include "windowgroup.h"
1.26 +#include "walkwindowtree.h"
1.27 +#include "wstop.h"
1.28 +#include "ScrDev.H"
1.29 +#include "panics.h"
1.30 +#include "inifile.h"
1.31 +#include "EVENT.H"
1.32 +
1.33 +_LIT(KNoBlank,"NOBLANKSCREEN");
1.34 +_LIT(KDefaultBackgroundColor,"BACKGROUNDCOLOR");
1.35 +_LIT(KDefaultBackgroundAlpha,"BACKGROUNDALPHA");
1.36 +_LIT(KRootWinDefaultBackgroundColor,"ROOTBACKGROUNDCOLOR");
1.37 +
1.38 +CWsRootWindow::CWsRootWindow(CWsClient* aOwner, CScreen* aScreen) : CWsWindow(aOwner,WS_HANDLE_ROOT_WINDOW,aScreen)
1.39 + {
1.40 + iWinType=EWinTypeRoot;
1.41 + }
1.42 +
1.43 +CWsRootWindow::~CWsRootWindow()
1.44 + {
1.45 + if (Screen() && (iBaseWinFlags&EBaseWinNodeCreated))
1.46 + {
1.47 + MWsWindowTreeObserver* const windowTreeObserver = Screen()->WindowTreeObserver();
1.48 + if (windowTreeObserver)
1.49 + {
1.50 + windowTreeObserver->NodeReleased(*this);
1.51 + iBaseWinFlags &= ~EBaseWinNodeCreated;
1.52 + }
1.53 + }
1.54 + Shutdown();
1.55 + }
1.56 +
1.57 +void CWsRootWindow::ConstructL()
1.58 + {
1.59 + CWsWindow::Construct();
1.60 + iParent=NULL;
1.61 + iSibling=NULL;
1.62 + iChild=NULL;
1.63 + iClientHandle=NULL;
1.64 + iAbs.Resize(iScreen->SizeInPixels());
1.65 + iRel=iAbs;
1.66 + iFlags=EFlagPointerCaptured;
1.67 + iPointerFilter=EPointerFilterEnterExit|EPointerFilterMove|EPointerFilterDrag;
1.68 + iArea.AddRect(iAbs);
1.69 + iRedraw=new(ELeave) CWsBlankWindow(this);
1.70 + iRedraw->ConstructL();
1.71 + TInt backgroundcolor;
1.72 + if(!WsIniFile->FindVar(KDefaultBackgroundColor,backgroundcolor))
1.73 + backgroundcolor = KRgbWhite.Value();
1.74 + TInt backgroundalpha;
1.75 + if(!WsIniFile->FindVar(KDefaultBackgroundAlpha,backgroundalpha))
1.76 + backgroundalpha = 0xFF;
1.77 + iDefaultBackgroundColor = TRgb(backgroundcolor,backgroundalpha);
1.78 +
1.79 + if (WsIniFile->FindVar(KNoBlank))
1.80 + BlankRedraw()->SetBackgroundClear();
1.81 + else
1.82 + {
1.83 + if (WsIniFile->FindVar(KRootWinDefaultBackgroundColor,backgroundcolor))
1.84 + SetColor(TRgb(backgroundcolor,backgroundalpha));
1.85 + else
1.86 + SetColor(iDefaultBackgroundColor);
1.87 + }
1.88 +
1.89 + MWsWindowTreeObserver* const windowTreeObserver = Screen()->WindowTreeObserver();
1.90 + if (windowTreeObserver)
1.91 + {
1.92 + windowTreeObserver->NodeCreated(*this, NULL);
1.93 + iBaseWinFlags |= EBaseWinNodeCreated;
1.94 + }
1.95 + }
1.96 +
1.97 +void CWsRootWindow::SetColor(TRgb aColor)
1.98 + {
1.99 + BlankRedraw()->SetColor(aColor);
1.100 + }
1.101 +
1.102 +void CWsRootWindow::SetColorIfClear()
1.103 + {
1.104 + if (!BlankRedraw()->IsBackgroundColor())
1.105 + SetColor(iDefaultBackgroundColor);
1.106 + }
1.107 +
1.108 +const CWsWindow *CWsRootWindow::PointerWindow(const TPoint &aInPos,TPoint *aOutPos, TPoint *aParentPos,
1.109 + const CWsWindow *aGrabWin, const CWsWindow *&aOriginalWinItIsIn, const CWsWindowGroup *aForceInGroup)
1.110 +//
1.111 +// For aInPos (a global point on screen) find which window it is in, starting the search from 'this'.
1.112 +// aOutPos is set to be aInPos adjusted relative to the top left of the result window.
1.113 +// If the pointer is not in any of the searched windows the result is returned as though it was in 'this'
1.114 +// even though it may actually be oustside the bounds of this.
1.115 +//
1.116 +// If aForceInGroup==NULL search all groups otherwise only search it only
1.117 +//
1.118 + {
1.119 + aOriginalWinItIsIn=this;
1.120 + const CWsWindowGroup *group;
1.121 + const CWsWindowGroup *winItIsInGroup=aForceInGroup;
1.122 +//
1.123 +// First determine owner of the window the event is in regardless of any capture
1.124 +// This is so we can decide whether the capture affects this case or not
1.125 +//
1.126 + for(group=(aForceInGroup ? aForceInGroup:Child());group!=NULL;group=group->NextSibling())
1.127 + {
1.128 + CWsClientWindow *win=group->Child();
1.129 + while(win!=NULL)
1.130 + {
1.131 + const TRegion *baseArea=win->BaseArea();
1.132 + if (win->IsVisible() && baseArea->Contains(aInPos))
1.133 + {
1.134 + aOriginalWinItIsIn=win;
1.135 + winItIsInGroup=group;
1.136 + win=win->Child();
1.137 + }
1.138 + else
1.139 + win=win->NextSibling();
1.140 + }
1.141 + if (aOriginalWinItIsIn!=this || aForceInGroup!=NULL)
1.142 + break;
1.143 + }
1.144 +//
1.145 +// Then try again taking note of any pointer capture or grab
1.146 +//
1.147 + const CWsWindow *winItIsIn;
1.148 + if (aGrabWin!=NULL)
1.149 + winItIsIn=aGrabWin;
1.150 + else
1.151 + {
1.152 + winItIsIn=this;
1.153 + for(group=(aForceInGroup ? aForceInGroup:Child());group!=NULL;group=group->NextSibling())
1.154 + {
1.155 + CWsClientWindow *win=group->Child();
1.156 + while(win!=NULL)
1.157 + {
1.158 + const TRegion *baseArea=win->BaseArea();
1.159 + const TBool underTheSameGroup=winItIsInGroup==group;
1.160 + if (win->IsVisible() &&
1.161 + ((win->iFlags&EFlagPointerCaptured &&
1.162 + ((!underTheSameGroup && win->iFlags&EFlagPointerCaptureAllGroups) ||
1.163 + (winItIsInGroup==NULL && group==CWsTop::FocusWindowGroup()) ||
1.164 + (underTheSameGroup && win->iPointerCapturePriority>=aOriginalWinItIsIn->iPointerCapturePriority)))
1.165 + || baseArea->Contains(aInPos)))
1.166 + {
1.167 + winItIsIn=win;
1.168 + win=win->Child();
1.169 + }
1.170 + else
1.171 + win=win->NextSibling();
1.172 + }
1.173 + if (winItIsIn!=this || aForceInGroup!=NULL)
1.174 + break;
1.175 + }
1.176 + }
1.177 + if (aOutPos!=NULL)
1.178 + {
1.179 + *aOutPos=aInPos-winItIsIn->iOrigin;
1.180 + }
1.181 + if (aParentPos!=NULL)
1.182 + {
1.183 + const CWsWindowBase *win=winItIsIn->BaseParent();
1.184 + if (win==NULL)
1.185 + win=winItIsIn;
1.186 + *aParentPos=aInPos-win->Origin();
1.187 + }
1.188 + return(winItIsIn);
1.189 + }
1.190 +
1.191 +void CWsRootWindow::GenerateWindowRegion(RWsRegion &aRegion) const
1.192 + {
1.193 + aRegion.Clear();
1.194 + aRegion.AddRect(iAbs);
1.195 + if (iChild)
1.196 + {
1.197 + for(CWsTopClientWindow *win=FirstTopClientWindow();aRegion.Count()>0 && win!=NULL;win=win->NextSiblingMultiParent())
1.198 + {
1.199 + if (win->IsVisible())
1.200 + aRegion.SubRegion(*win->BaseArea());
1.201 + }
1.202 + }
1.203 + }
1.204 +
1.205 +void CWsRootWindow::CommandL(TInt , const TAny *)
1.206 + {
1.207 + WS_PANIC_ALWAYS(EWsPanicRootCommand);
1.208 + }
1.209 +
1.210 +void CWsRootWindow::InvalidateWholeScreen()
1.211 + {
1.212 + RWsRegion screen(iAbs);
1.213 + Invalidate(&screen);
1.214 + screen.Close();
1.215 + }
1.216 +
1.217 +void CWsRootWindow::Invalidate(RWsRegion* aRegion)
1.218 + {
1.219 + iScreen->AddRedrawRegion(*aRegion);
1.220 + }
1.221 +
1.222 +void CWsRootWindow::AdjustCoordsDueToRotation()
1.223 + {
1.224 + iArea.Clear();
1.225 + iAbs=iScreen->DrawableArea();
1.226 + iRel=iAbs;
1.227 + iArea.AddRect(iAbs);
1.228 + iOrigin=iAbs.iTl;
1.229 + for(CWsTopClientWindow *win=FirstTopClientWindow();win!=NULL;win=win->NextSiblingMultiParent())
1.230 + {
1.231 + win->RecalcChildAbs(NULL);
1.232 + }
1.233 + }
1.234 +
1.235 +void CWsRootWindow::ClearDisplay()
1.236 + {
1.237 + MWsScreenDevice *sd=static_cast<MWsScreenDevice*>(iScreen->ResolveObjectInterface(KMWsScreenDevice));
1.238 + WS_ASSERT_ALWAYS(sd, EWsPanicScreenDeviceMissing);
1.239 + sd->ClearDisplay(BackColor());
1.240 + }
1.241 +
1.242 +void CWsRootWindow::SetSystemFaded(TBool aFaded, TUint8 aBlackMap, TUint8 aWhiteMap)
1.243 + {
1.244 + WS_ASSERT_DEBUG(Screen(),EWsPanicNoScreen);
1.245 +
1.246 + TBool stateChanged = EFalse; //will be set to true if one or more windows change fade state.
1.247 + for(CWsWindowGroup* win=Child();win!=NULL;win=win->NextSibling())
1.248 + {
1.249 + TWalkWindowTreeSetSystemFaded wwt(aFaded, win, aBlackMap, aWhiteMap, stateChanged);
1.250 + win->WalkWindowTree(wwt,EWalkChildren);
1.251 + }
1.252 +
1.253 + MWsWindowTreeObserver* windowTreeObserver = Screen()->WindowTreeObserver();
1.254 + if(windowTreeObserver && stateChanged)
1.255 + {
1.256 + windowTreeObserver->FadeAllChildren(*this, aFaded);
1.257 + }
1.258 + }
1.259 +
1.260 +CWsWindowGroup* CWsRootWindow::WindowGroup(TInt aWindowGroup)
1.261 + {
1.262 + CWsWindowBase* group=iChild;
1.263 + while (aWindowGroup-->0 && group)
1.264 + group=group->NextSibling();
1.265 + return static_cast<CWsWindowGroup*>(group);
1.266 + }
1.267 +
1.268 +CWsTopClientWindow *CWsRootWindow::FirstTopClientWindow() const
1.269 + {
1.270 + CWsWindowGroup* group;
1.271 + for(group=Child();group && group->Child()==NULL;group=group->NextSibling())
1.272 + {}
1.273 + return(group?group->Child():NULL);
1.274 + }
1.275 +
1.276 +const TRegion& CWsRootWindow::WindowArea() const
1.277 + {
1.278 + return iArea;
1.279 + }
1.280 +
1.281 +void CWsRootWindow::SendState(MWsWindowTreeObserver& aWindowTreeObserver) const
1.282 + {
1.283 + aWindowTreeObserver.NodeCreated(*this, NULL);
1.284 + }
1.285 +
1.286 +/** @see MWsWindowTreeNode */
1.287 +const MWsWindow* CWsRootWindow::Window() const
1.288 + {
1.289 + return NULL;
1.290 + }
1.291 +