qtSDLTreeModel.cpp

#include "qtSDLTreeModel.h"
#include "SDL/plStateDataRecord.h"
#include "SDL/plStateVariable.h"
#include <Stream/hsRAMStream.h>
#include <QStringList>

const char* TypeNames[] = {
    "INT", "FLOAT", "BOOL", "STRING", "KEY", "STATEDESC", "CREATABLE",
    "DOUBLE", "TIME", "BYTE", "SHORT", "AGETIMEOFDAY",
    "", "", "", "", "", "", "", "", "", "",
    "", "", "", "", "", "", "", "", "", "",
    "", "", "", "", "", "", "", "", "", "",
    "", "", "", "", "", "", "", "",
    "VECTOR3", "POINT3", "RGB", "RGBA", "QUATERNION", "RGB8", "RGBA8",
    "UINT", "CHAR", "MATRIX44", "BUFFER", "AGETIMEELAPSED", "GAMETIMEELAPSED"
};

enum { kDataRow, kTypeRow };

qtSDLTreeModel::qtSDLTreeModel(plStateDataRecord* sdl) :
    QAbstractItemModel(0), sdl(sdl)
{
}

qtSDLTreeModel::~qtSDLTreeModel() {}

QModelIndex qtSDLTreeModel::ICreateIndex(int row, int column, const QModelIndex& parent, void *ptr, ItemType type) const {
    SDLModelIndex index;
    index.ptr.raw = ptr;
    index.type = type;
    index.parent = parent;
    index.row = row;
    index.column = column;
    if(indices.contains(index)) {
        return createIndex(row, column, indices.indexOf(index));
    }else{
        indices.append(index);
        return createIndex(row, column, indices.count() - 1);
    }
}

QModelIndex qtSDLTreeModel::parent(const QModelIndex &child) const {
    return indices[child.internalId()].parent;
}

QModelIndex qtSDLTreeModel::index(int row, int column, const QModelIndex& parent) const {
    if(parent.isValid()) {
        SDLModelIndex myParent = indices[parent.internalId()];
        switch(myParent.type) {
        case kSDR:
            return ICreateIndex(row, column, parent, myParent.ptr.sdr->get(row), kVar);
        case kVar:
            if(myParent.ptr.sv->getDescriptor()->getType() == plVarDescriptor::kStateDescriptor)
                return ICreateIndex(row, column, parent, ((plSDStateVariable*)myParent.ptr.sv)->Record(row), kSDR);
            else
                return ICreateIndex(row, column, parent, myParent.ptr.sv, kVal);
        case kVal:
            return QModelIndex(); // this is not valid, values have no children
        default:
            return QModelIndex(); // satisfy the compiler
        }
    }else{
        return ICreateIndex(row, column, parent, sdl, kSDR);
    }
}

int qtSDLTreeModel::rowCount(const QModelIndex& parent) const {
    if(parent.isValid()) {
        SDLModelIndex myParent = indices[parent.internalId()];
        switch(myParent.type) {
        case kSDR:
            return myParent.ptr.sdr->getNumVars();
        case kVar:
            return myParent.ptr.sv->getCount();
        case kVal:
            return 0;
        default:
            return 0;
        }
    }else{
        return 1; // only one root
    }
}

int qtSDLTreeModel::columnCount(const QModelIndex&) const {
    return 2;
}

// gets a prc string for any pointer
// to an object with a prcWrite method
template <class T>
QString getPrc(T v) {
    // make a prc object and write to it
    hsRAMStream s(PlasmaVer::pvMoul);
    pfPrcHelper prc(&s);
    v->prcWrite(&prc);
    // extract the contents of the stream
    char* str = new char[s.size() + 1];
    str[s.size()] = 0;
    s.copyTo(str, s.size());
    QString out(str);
    delete[] str;
    // strip off the xml header
    QStringList lst = out.split('\n');
    out = QString();
    for(int i = 2; i < lst.count(); i++)
        out.append(lst[i]);
    return out;
}
#include <QIcon>
QVariant qtSDLTreeModel::data(const QModelIndex& index, int role) const {
    if(role == Qt::DecorationRole)
        return QIcon(":ResourceFilename");
    if(role != Qt::DisplayRole)
        return QVariant();
    if(index.isValid()) {
        SDLModelIndex myIndex = indices[index.internalId()];
        switch(index.column()) {
        case kDataRow:
            switch(myIndex.type) {
            case kSDR:
                return myIndex.ptr.sdr->getDescriptor()->getName().cstr();
            case kVar:
                return myIndex.ptr.sv->getDescriptor()->getName().cstr();
            case kVal:
                {
                    plSimpleStateVariable* var = (plSimpleStateVariable*)myIndex.ptr.sv;
                    switch(var->getDescriptor()->getType()) {
                    case plVarDescriptor::kBool:
                        return var->Bool(index.row()) ? "True" : "False";
                    case plVarDescriptor::kInt:
                        return plString::Format("%d", var->Int(index.row()));
                    case plVarDescriptor::kByte:
                        return plString::Format("%d", var->Byte(index.row()));
                    case plVarDescriptor::kFloat:
                        return plString::Format("%f", var->Float(index.row()));
                    case plVarDescriptor::kDouble:
                        return plString::Format("%f", var->Double(index.row()));
                    case plVarDescriptor::kString:
                        return var->String(index.row()).cstr();
                    case plVarDescriptor::kChar:
                        return QString(var->Char(index.row()));
                    case plVarDescriptor::kKey:
                        return getPrc<plUoid*>(&var->Uoid(index.row()));
                    case plVarDescriptor::kCreatable:
                        return getPrc<plCreatable*>(var->Creatable(index.row()));
                    case plVarDescriptor::kRGB8:
                    case plVarDescriptor::kRGBA8:
                        return getPrc<hsColor32*>(&var->Color32(index.row()));
                    case plVarDescriptor::kRGB:
                    case plVarDescriptor::kRGBA:
                        return getPrc<hsColorRGBA*>(&var->ColorRGBA(index.row()));
                    case plVarDescriptor::kPoint3:
                    case plVarDescriptor::kVector3:
                        return getPrc<hsVector3*>(&var->Vector(index.row()));
                    case plVarDescriptor::kQuaternion:
                        return getPrc<hsQuat*>(&var->Quat(index.row()));
                    default:
                        return plString::Format("Unhandled SDL Var Type (%d)", var->getDescriptor()->getType());
                    }
                }
            }
        case kTypeRow:
            switch(myIndex.type) {
            case kSDR:
                return "STATEDESC";
            case kVar:
                if(myIndex.ptr.sv->getDescriptor()->isVariableLength())
                    return plString::Format("%s[]", TypeNames[myIndex.ptr.sv->getDescriptor()->getType()]);
                else
                    return plString::Format("%s[%d]", TypeNames[myIndex.ptr.sv->getDescriptor()->getType()], myIndex.ptr.sv->getCount());
            case kVal:
                return TypeNames[myIndex.ptr.sv->getDescriptor()->getType()];
            }
        }
    }
    return QVariant("Requested invalid index");
}

QVariant qtSDLTreeModel::headerData(int section, Qt::Orientation orientation, int role) const {
    if(orientation != Qt::Horizontal || role != Qt::DisplayRole)
        return QVariant();
    switch(section) {
    case kDataRow:
        return QVariant("Data");
    case kTypeRow:
        return QVariant("Type");
    default:
        return QVariant();
    }
}

Qt::ItemFlags qtSDLTreeModel::flags(const QModelIndex &index) const {
    Qt::ItemFlags flags = Qt::ItemIsSelectable | Qt::ItemIsEnabled;
    if(indices[index.internalId()].type == kVal && index.column() == 0)
        return flags |= Qt::ItemIsEditable;
    return flags;
}

bool qtSDLTreeModel::setData(const QModelIndex &index, const QVariant &value, int role) {
    if(role != Qt::EditRole || value.type() != QVariant::String || index.column() != 0)
        return false;
    QString* strVal = (QString*)value.data();
    SDLModelIndex myIndex = indices[index.internalId()];
    if(myIndex.type != kVal)
        return false;
    plSimpleStateVariable* var = (plSimpleStateVariable*)myIndex.ptr.sv;
    switch(var->getDescriptor()->getType()) {
    case plVarDescriptor::kBool:
        if(*strVal == "True")
            var->Bool(index.row()) = true;
        else if(*strVal == "False")
            var->Bool(index.row()) = false;
        else
            return false;
        break;
    case plVarDescriptor::kInt:
    {
        bool result;
        int value = strVal->toInt(&result);
        if(result)
            var->Int(index.row()) = value;
        else
            return false;
        break;
    }
    case plVarDescriptor::kByte:
    {
        bool result;
        int value = strVal->toInt(&result);
        if(result && value >= 0 && value < 256)
            var->Byte(index.row()) = (unsigned char)value;
        else
            return false;
        break;
    }
    case plVarDescriptor::kChar:
    {
        char* str = strVal->toLocal8Bit().data();
        if(strlen(str) == 1)
            var->Char(index.row()) = str[0];
        else
            return false;
        break;
     }
    case plVarDescriptor::kFloat:
    {
        bool result;
        float value = strVal->toFloat(&result);
        if(result)
            var->Float(index.row()) = value;
        else
            return false;
        break;
    }
    case plVarDescriptor::kDouble:
    {
        bool result;
        double value = strVal->toDouble(&result);
        if(result)
            var->Double(index.row()) = value;
        else
            return false;
        break;
    }
    case plVarDescriptor::kString:
        var->String(index.row()) = plString(strVal->toLocal8Bit().data());
        break;
    default:
        return false;
    }
    emit sdlChanged(sdl);
    return true;
}