CWE-ou-minkata/Sources/Tools/MaxComponent/plComponentBase.cpp

/*==LICENSE==*

CyanWorlds.com Engine - MMOG client, server and tools
Copyright (C) 2011  Cyan Worlds, Inc.

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
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along with this program.  If not, see <http://www.gnu.org/licenses/>.

Additional permissions under GNU GPL version 3 section 7

If you modify this Program, or any covered work, by linking or
combining it with any of RAD Game Tools Bink SDK, Autodesk 3ds Max SDK,
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(or a modified version of those libraries),
containing parts covered by the terms of the Bink SDK EULA, 3ds Max EULA,
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 or by snail mail at:
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*==LICENSE==*/
#include "HeadSpin.h"
#include "plComponentBase.h"
#include "plComponentReg.h"
#include "MaxMain/plPlasmaRefMsgs.h"
#include "MaxMain/plMaxNodeBase.h"

#include "plAutoUIComp.h"

plComponentBase::plComponentBase() : fClassDesc(nil), fCompPB(nil), fTargsPB(nil)
{
}

plComponentBase::~plComponentBase()
{
    DeleteAllRefsFromMe();
}

CreateMouseCallBack* plComponentBase::GetCreateMouseCallBack()
{
    return NULL;
}

void plComponentBase::BeginEditParams(IObjParam *ip, ULONG flags, Animatable *prev)
{
    fClassDesc->BeginEditParams(ip, this, flags, prev);
}

void plComponentBase::EndEditParams(IObjParam *ip, ULONG flags, Animatable *next)
{
    fClassDesc->EndEditParams(ip, this, flags, next);
}

int plComponentBase::NumParamBlocks()
{
    return 2;
}

IParamBlock2 *plComponentBase::GetParamBlock(int i)
{
    if (i == kRefComp)
        return fCompPB;
    else if (i == kRefTargs)
        return fTargsPB;

    return nil;
}

IParamBlock2 *plComponentBase::GetParamBlockByID(BlockID id)
{
    if (fCompPB && fCompPB->ID() == id)
        return fCompPB;
    else if (fTargsPB && fTargsPB->ID() == id)
        return fTargsPB;

    return nil;
}

// So our animatables will show up in the trackview
int plComponentBase::NumSubs()
{
    return 1;
}

Animatable *plComponentBase::SubAnim(int i)
{
    return fCompPB;
}

TSTR plComponentBase::SubAnimName(int i)
{
    return fClassDesc->ClassName();
}

RefTargetHandle plComponentBase::Clone(RemapDir &remap)
{
    plComponentBase *obj = (plComponentBase*)fClassDesc->Create(false);
    // Do the base clone
    BaseClone(this, obj, remap);
    // Copy our references
    if (fCompPB)
        obj->ReplaceReference(kRefComp, fCompPB->Clone(remap));
    if (fTargsPB)
        obj->ReplaceReference(kRefTargs, fTargsPB->Clone(remap));

    return obj;
}

void plComponentBase::BuildMesh(TimeValue t)
{
}

void plComponentBase::FreeCaches()
{
}

void plComponentBase::GetLocalBoundBox(TimeValue t, INode *node, ViewExp *vpt, Box3 &box)
{
    box.MakeCube(Point3(0,0,0), 0);
}

void plComponentBase::GetWorldBoundBox(TimeValue t, INode *node, ViewExp *vpt, Box3 &box)
{
    box.MakeCube(Point3(0,0,0), 0);
}

int plComponentBase::Display(TimeValue t, INode *node, ViewExp *vpt, int flags)
{
    return 0;
}

int plComponentBase::HitTest(TimeValue t, INode *node, int type, int crossing, int flags, IPoint2 *p, ViewExp *vpt)
{
    return 0;
}

int plComponentBase::NumRefs()
{
    return 2;
}

RefTargetHandle plComponentBase::GetReference(int i)
{
    if (i == kRefComp)
        return fCompPB;
    else if (i == kRefTargs)
        return fTargsPB;

    return nil;
}

void plComponentBase::SetReference(int i, RefTargetHandle rtarg)
{
    if (i == kRefTargs)
        fTargsPB = (IParamBlock2*)rtarg;
    else if (i == kRefComp)
        fCompPB = (IParamBlock2*)rtarg;
}

RefResult plComponentBase::NotifyRefChanged(Interval changeInt, RefTargetHandle hTarget, PartID& partID, RefMessage message)
{
    return REF_SUCCEED;
}

IOResult plComponentBase::Save(ISave* isave)
{
    return IO_OK;
}

IOResult plComponentBase::Load(ILoad* iload)
{
    return IO_OK;
}

void plComponentBase::AddTargetsToList(INodeTab& list)
{
    int i;
    for( i = 0; i < NumTargets(); i++ )
    {
        INode* targ = GetTarget(i);
        if( targ )
            list.Append(1, &targ);
    }
}

UInt32 plComponentBase::NumTargets()
{
    if (fTargsPB)
        return fTargsPB->Count(kTargs);

    return 0;
}

plMaxNodeBase *plComponentBase::GetTarget(UInt32 i)
{
    if (fTargsPB && i < NumTargets())
        return (plMaxNodeBase*)fTargsPB->GetINode(kTargs, 0, i);

    return nil;
}

void plComponentBase::AddTarget(plMaxNodeBase *target)
{
    if (!target)
        return;

    // Make sure we don't already ref this
    UInt32 count = fTargsPB->Count(kTargs);
    for (UInt32 i = 0; i < count; i++)
    {
        if (fTargsPB->GetINode(kTargs, 0, i) == target)
            return;
    }

    // Add it to our list
    fTargsPB->Append(kTargs, 1, (INode**)&target);
    
    NotifyDependents(FOREVER, (PartID)target, REFMSG_USER_TARGET_ADD);
}

void plComponentBase::DeleteTarget(plMaxNodeBase *target)
{
    if (!target)
        return;

    UInt32 count = fTargsPB->Count(kTargs);
    for (UInt32 i = 0; i < count; i++)
    {
        if (fTargsPB->GetINode(kTargs, 0, i) == target)
        {
            fTargsPB->Delete(kTargs, i, 1);
            NotifyDependents(FOREVER, (PartID)target, REFMSG_USER_TARGET_DELETE);
            return;
        }
    }
}

void plComponentBase::DeleteAllTargets()
{
    while (fTargsPB->Count(kTargs) > 0)
    {
        INode *node = fTargsPB->GetINode(kTargs);
        if (node)
            NotifyDependents(FOREVER, (PartID)node, REFMSG_USER_TARGET_DELETE);

        fTargsPB->Delete(kTargs, 0, 1);
    }
}

bool plComponentBase::IsTarget(plMaxNodeBase *node)
{
    if (!node)
        return false;

    for (int i = 0; i < fTargsPB->Count(kTargs); i++)
        if (fTargsPB->GetINode(kTargs, 0, i) == node)
            return true;

    return false;
}

const char* plComponentBase::IGetUniqueName(plMaxNodeBase* target)
{
    static char nameBuf[256];

    // Make sure we've actually got multiple *used* targets.  (Some could be nil)
    int numUsedTargs = 0;
    int thisTargIdx = -1;
    for (int i = 0; i < fTargsPB->Count(kTargs); i++)
    {
        plMaxNodeBase* thisTarg = (plMaxNodeBase*)fTargsPB->GetINode(kTargs, 0, i);

        if (thisTarg)
            numUsedTargs++;

        if (thisTarg == target)
            thisTargIdx = i;

        // If we've figured out whether or not we have multiple targets, and we
        // found which target this one is, we can break out early
        if (numUsedTargs > 1 && thisTargIdx != -1)
            break;
    }

    hsAssert(thisTargIdx != -1, "Bad target for IGetUniqueName");

    if (numUsedTargs > 1)
        _snprintf(nameBuf, sizeof(nameBuf), "%s_%d", GetINode()->GetName(), thisTargIdx);
    else
        strncpy(nameBuf, GetINode()->GetName(), sizeof(nameBuf));

    return nameBuf;
}

plMaxNodeBase *plComponentBase::GetINode()
{
    // Go through the reflist looking for RefMakers with a ref to this component.
    // There should only be one INode in this list.
    DependentIterator di(this);
    ReferenceMaker* rm = di.Next();
    while (rm != nil) 
    {
        if (rm->SuperClassID() == BASENODE_CLASS_ID)
            return (plMaxNodeBase*)rm;

        rm = di.Next();
    }

    return nil;
}

hsBool plComponentBase::IsExternal()
{
    return CanConvertToType(EXT_COMPONENT_CLASSID);
}

bool plComponentBase::IsCurMsgLocal()
{
    // Was the last notification a message propagated up from a target?
    // Ignore it if so.
    if (fTargsPB->LastNotifyParamID() != -1)
        return false;

    // Was the last notification from a ref in the component PB?  If so, assume
    // it was a propagated message from the ref.  Real changes to that ref
    // parameter will be signalled with a user ref message.
    if (fCompPB->LastNotifyParamID() != -1)
    {
        ParamID id = fCompPB->LastNotifyParamID();
        if (is_ref(fCompPB->GetParamDef(id)))
            return false;
    }

    return true;
}

bool plComponentBase::IsObsolete()
{
    return ((plComponentClassDesc*)fClassDesc)->IsObsolete();
}

bool DoesPBReferenceNode(IParamBlock2* pb, INode* node);

static bool CheckRef(ReferenceTarget* targ, INode* node)
{
    if (!targ)
        return false;
    if (targ->SuperClassID() == BASENODE_CLASS_ID)
    {
        if ((INode*)targ == node)
            return true;
    }
    else if (targ->SuperClassID() == PARAMETER_BLOCK2_CLASS_ID)
    {
        return DoesPBReferenceNode((IParamBlock2*)targ, node);
    }
    return false;
}

static bool DoesPBReferenceNode(IParamBlock2* pb, INode* node)
{
    for (int i = 0; i < pb->NumParams(); i++)
    {
        ParamID id = pb->IndextoID(i);
        ParamType2 type = pb->GetParameterType(id);
        if (type == TYPE_INODE)
        {
            if (pb->GetINode(id) == node)
                return true;
        }
        if (type == TYPE_INODE_TAB)
        {
            for (int iNode = 0; iNode < pb->Count(id); iNode++)
            {
                if (pb->GetINode(id, 0, iNode) == node)
                    return true;
            }
        }
        if (type == TYPE_REFTARG)
        {
            ReferenceTarget* targ = pb->GetReferenceTarget(id);
            bool ret = CheckRef(targ, node);
            if (ret)
                return true;
        }
        if (type == TYPE_REFTARG_TAB)
        {
            for (int iRef = 0; iRef < pb->Count(id); iRef++)
            {
                ReferenceTarget* targ = pb->GetReferenceTarget(id, 0, iRef);
                bool ret = CheckRef(targ, node);
                if (ret)
                    return true;
            }
        }
    }

    return false;
}

bool plComponentBase::DoReferenceNode(INode* node)
{
    if (!fCompPB)
        return false;

    return DoesPBReferenceNode(fCompPB, node);
}

void plComponentBase::CreateRollups()
{
    if (!fCompPB)
        return;

    ParamBlockDesc2 *pd = fCompPB->GetDesc();
    plComponentClassDesc *cd = (plComponentClassDesc*)pd->cd;

    // This is a plAutoUIComp, we need to treat it differently
    if (cd->IsAutoUI())
    {
        plAutoUIClassDesc *cd = (plAutoUIClassDesc*)pd->cd;
        cd->CreateAutoRollup(fCompPB);
    }
    // We're using a normal param block with auto UI
    else if (pd->flags & P_AUTO_UI)
    {
        if (pd->flags & P_MULTIMAP)
        {
            int nMaps = pd->map_specs.Count();
            for (int i = 0; i < nMaps; i++)
            {
                ParamBlockDesc2::map_spec spec = pd->map_specs[i];

                // Create the rollout
                IParamMap2 *map = CreateCPParamMap2(spec.map_id,
                                                    fCompPB,
                                                    GetCOREInterface(),
                                                    hInstance,
                                                    MAKEINTRESOURCE(spec.dlg_template),
                                                    GetString(spec.title),
                                                    spec.rollup_flags,
                                                    spec.dlgProc,
                                                    NULL,
                                                    ROLLUP_CAT_STANDARD);

                // Save the rollout in the paramblock
                fCompPB->SetMap(map, spec.map_id);
            }
        }
        else
        {
            // Create the rollout
            IParamMap2 *map = CreateCPParamMap2(0,
                                                fCompPB,
                                                GetCOREInterface(),
                                                hInstance,
                                                MAKEINTRESOURCE(pd->dlg_template),
                                                GetString(pd->title),
                                                pd->flags,
                                                pd->dlgProc,
                                                NULL,
                                                ROLLUP_CAT_STANDARD);

            // Save the rollout in the paramblock
            fCompPB->SetMap(map);
        }
    }

    fCompPB->ReleaseDesc();
}

void plComponentBase::DestroyRollups()
{
    if (!fCompPB)
        return;

    ParamBlockDesc2 *pd = fCompPB->GetDesc();
    plComponentClassDesc *cd = (plComponentClassDesc*)pd->cd;

    // This is a plAutoUIComp, we need to treat it differently
    if (cd->IsAutoUI())
    {
        plAutoUIClassDesc *autoCD = (plAutoUIClassDesc*)pd->cd;
        autoCD->DestroyAutoRollup();
    }
    // We're using a normal param block with auto UI
    else if (pd->flags & P_AUTO_UI)
    {
        if (pd->flags & P_MULTIMAP)
        {
            int nMaps = pd->map_specs.Count();
            for (int i = 0; i < nMaps; i++)
            {
                MapID id = pd->map_specs[i].map_id;
                // Destroy any parammap saved in the rollup
                IParamMap2 *map = fCompPB->GetMap(id);
                fCompPB->SetMap(nil, id);
                if (map)
                    DestroyCPParamMap2(map);
            }
        }
        else
        {
            // Destroy any parammap saved in the rollup
            IParamMap2 *map = fCompPB->GetMap();
            fCompPB->SetMap(nil);
            if (map)
                DestroyCPParamMap2(map);
        }
    }

    fCompPB->ReleaseDesc();
}

////////////////////////////////////////////////////////////////////////////////

static bool INodeHasComponent(plMaxNodeBase *node, plMaxNodeBase *compNode)
{
    UInt32 count = node->NumAttachedComponents();
    for (UInt32 i = 0; i < count; i++)
    {
        if (node->GetAttachedComponent(i)->GetINode() == compNode)
            return true;
    }

    return false;
}

int plSharedComponents(INodeTab& nodes, INodeTab& components)
{
    components.ZeroCount();

    if (nodes.Count() == 0)
        return 0;

    plMaxNodeBase *firstNode = (plMaxNodeBase*)nodes[0];
    int num = firstNode->NumAttachedComponents();
    
    // Resize the list to it's max size to be more efficient
    components.SetCount(num);

    int i;

    // Put all the components on the first node into a list
    for (i = 0; i < num; i++)
        components[i] = firstNode->GetAttachedComponent(i)->GetINode();

    // Delete any components that aren't on all the other nodes
    for (i = 1; i < nodes.Count(); i++)
    {
        plMaxNodeBase *node = (plMaxNodeBase*)nodes[i];
        UInt32 count = node->NumAttachedComponents();

        for (int j = components.Count()-1; j >= 0; j--)
        {
            if (!INodeHasComponent(node, (plMaxNodeBase*)components[j]))
                components.Delete(j, 1);
        }
    }

    return components.Count();
}


///////////////////////////////////////////////////////////////////////////////////////////

#include "notify.h"

static void UpdateComponentVisibility(plMaxNodeBase *node)
{
    plComponentBase *comp = node->ConvertToComponent();
    if (comp)
    {
        node->Freeze(TRUE);
        node->Hide(!comp->AllowUnhide());
    }

    for (int i = 0; i < node->NumberOfChildren(); i++)
    {
        plMaxNodeBase *childNode = (plMaxNodeBase*)node->GetChildNode(i);
        UpdateComponentVisibility(childNode);
    }
}

static void UnlinkComponents(plMaxNodeBase *node)
{
    plComponentBase *comp = node->ConvertToComponent();
    if (comp)
        comp->DeleteAllTargets();
    
    for (int i = 0; i < node->NumberOfChildren(); i++)
    {
        plMaxNodeBase *child = (plMaxNodeBase*)node->GetChildNode(i);
        UnlinkComponents(child);
    }
}

static void FindObsoleteComponents(plMaxNodeBase *node, std::vector<plComponentBase*>& obsoleteComps)
{
    plComponentBase *comp = node->ConvertToComponent();
    if (comp && comp->IsObsolete())
        obsoleteComps.push_back(comp);

    for (int i = 0; i < node->NumberOfChildren(); i++)
    {
        plMaxNodeBase *childNode = (plMaxNodeBase*)node->GetChildNode(i);
        FindObsoleteComponents(childNode, obsoleteComps);
    }
}

static bool gUpdatingComponents = false;

#include <set>
#include "hsUtils.h"

static void ComponentNotify(void *param, NotifyInfo *info)
{
    if (info->intcode == NOTIFY_NODE_UNHIDE)
    {
        if (!gUpdatingComponents)
        {
            plMaxNodeBase *node = (plMaxNodeBase*)info->callParam;
            plComponentBase *comp = node ? node->ConvertToComponent() : nil;
            if (comp)
            {
                node->Hide(!comp->AllowUnhide());
                node->Freeze(TRUE);
            }
        }
    }
    else if (info->intcode == NOTIFY_FILE_POST_OPEN)
    {
        plComponentShow::Update();
        GetCOREInterface()->ForceCompleteRedraw();
                                            // Also checking bitmap silent mode, since the export script uses that
        if (!hsMessageBox_SuppressPrompts && !TheManager->SilentMode())
        {
            // Get all the obsolete components in the scene
            std::vector<plComponentBase*> obsoleteComps;
            FindObsoleteComponents((plMaxNodeBase*)GetCOREInterface()->GetRootNode(), obsoleteComps);

            // For now, just get the categories (could get the component names)
            std::set<const char *> names;
            for (int i = 0; i < obsoleteComps.size(); i++)
            {
                const char *name = obsoleteComps[i]->GetObjectName();
                names.insert(name);
            }

            if (obsoleteComps.size() > 0)
            {
                char buf[1024];
                strcpy(buf, "Components of the following obsolete types\nwere found in this scene.  Please delete them.\n\n");
                std::set<const char *>::iterator it = names.begin();
                for (; it != names.end(); it++)
                {
                    strcat(buf, (*it));
                    strcat(buf, "\n");
                }

                hsMessageBox(buf, "Obsolete Components", hsMBoxOk);
            }
        }
    }
    // WEIRD HACK - If lots of components are linked to objects when a scene is closed
    // the closing goes really slow.  I assume it is just repeatedly calling some
    // unoptimized section of code (it would probably happen for any large number of
    // references).  So, at this point if the scene was changed the user would have already
    // been prompted to save it, so we can modify the scene by deleting all the component
    // references. -Colin
    else if (info->intcode == NOTIFY_SYSTEM_SHUTDOWN ||
            info->intcode == NOTIFY_FILE_PRE_OPEN)
    {
        UnlinkComponents((plMaxNodeBase*)GetCOREInterface()->GetRootNode());
    }
}

void plComponentShow::Init()
{
    RegisterNotification(ComponentNotify, 0, NOTIFY_FILE_POST_OPEN);
    RegisterNotification(ComponentNotify, 0, NOTIFY_NODE_UNHIDE);
    RegisterNotification(ComponentNotify, 0, NOTIFY_SYSTEM_SHUTDOWN);
    RegisterNotification(ComponentNotify, 0, NOTIFY_FILE_PRE_OPEN);
}

void plComponentShow::Update()
{
    gUpdatingComponents = true;
    UpdateComponentVisibility((plMaxNodeBase*)GetCOREInterface()->GetRootNode());
    gUpdatingComponents = false;
}