qt-creator/src/plugins/qmldesigner/components/materialbrowser/materialbrowsermodel.cpp

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#include "materialbrowsermodel.h"

#include <bindingproperty.h>
#include <designmodewidget.h>
#include <qmldesignerplugin.h>
#include <qmlobjectnode.h>
#include "variantproperty.h"
#include "utils/qtcassert.h"

namespace QmlDesigner {

MaterialBrowserModel::MaterialBrowserModel(QObject *parent)
    : QAbstractListModel(parent)
{
}

MaterialBrowserModel::~MaterialBrowserModel()
{
}

int MaterialBrowserModel::rowCount(const QModelIndex &) const
{
    return m_materialList.count();
}

QVariant MaterialBrowserModel::data(const QModelIndex &index, int role) const
{
    QTC_ASSERT(index.isValid() && index.row() < m_materialList.count(), return {});
    QTC_ASSERT(roleNames().contains(role), return {});

    QByteArray roleName = roleNames().value(role);
    if (roleName == "materialName") {
        QVariant objName = m_materialList.at(index.row()).variantProperty("objectName").value();
        return objName.isValid() ? objName : "";
    }

    if (roleName == "materialInternalId")
        return m_materialList.at(index.row()).internalId();

    if (roleName == "materialVisible")
        return isMaterialVisible(index.row());

    if (roleName == "materialType")
        return m_materialList.at(index.row()).type();

    return {};
}

bool MaterialBrowserModel::isMaterialVisible(int idx) const
{
    if (!isValidIndex(idx))
        return false;

    return m_searchText.isEmpty() || m_materialList.at(idx).variantProperty("objectName")
            .value().toString().contains(m_searchText, Qt::CaseInsensitive);
}

bool MaterialBrowserModel::isValidIndex(int idx) const
{
    return idx > -1 && idx < rowCount();
}

QHash<int, QByteArray> MaterialBrowserModel::roleNames() const
{
    static const QHash<int, QByteArray> roles {
        {Qt::UserRole + 1, "materialName"},
        {Qt::UserRole + 2, "materialInternalId"},
        {Qt::UserRole + 3, "materialVisible"},
        {Qt::UserRole + 4, "materialType"}
    };
    return roles;
}

bool MaterialBrowserModel::hasQuick3DImport() const
{
    return m_hasQuick3DImport;
}

void MaterialBrowserModel::setHasQuick3DImport(bool b)
{
    if (b == m_hasQuick3DImport)
        return;

    m_hasQuick3DImport = b;
    emit hasQuick3DImportChanged();
}

bool MaterialBrowserModel::hasModelSelection() const
{
    return m_hasModelSelection;
}

void MaterialBrowserModel::setHasModelSelection(bool b)
{
    if (b == m_hasModelSelection)
        return;

    m_hasModelSelection = b;
    emit hasModelSelectionChanged();
}

bool MaterialBrowserModel::hasMaterialRoot() const
{
    return m_hasMaterialRoot;
}

void MaterialBrowserModel::setHasMaterialRoot(bool b)
{
    if (m_hasMaterialRoot == b)
        return;

    m_hasMaterialRoot = b;
    emit hasMaterialRootChanged();
}

TypeName MaterialBrowserModel::copiedMaterialType() const
{
    return m_copiedMaterialType;
}

void MaterialBrowserModel::setCopiedMaterialType(const TypeName &matType)
{
    if (matType == m_copiedMaterialType)
        return;

    m_copiedMaterialType = matType;
    emit copiedMaterialTypeChanged();
}

QList<ModelNode> MaterialBrowserModel::materials() const
{
    return m_materialList;
}

void MaterialBrowserModel::setSearchText(const QString &searchText)
{
    QString lowerSearchText = searchText.toLower();

    if (m_searchText == lowerSearchText)
        return;

    m_searchText = lowerSearchText;

    bool isEmpty = false;

    // if selected material goes invisible, select nearest material
    if (!isMaterialVisible(m_selectedIndex)) {
        int inc = 1;
        int incCap = m_materialList.count();
        while (!isEmpty && inc < incCap) {
            if (isMaterialVisible(m_selectedIndex - inc)) {
                selectMaterial(m_selectedIndex - inc);
                break;
            } else if (isMaterialVisible(m_selectedIndex + inc)) {
                selectMaterial(m_selectedIndex + inc);
                break;
            }
            ++inc;
            isEmpty = !isValidIndex(m_selectedIndex + inc)
                   && !isValidIndex(m_selectedIndex - inc);
        }
    }

    if (isEmpty != m_isEmpty) {
        m_isEmpty = isEmpty;
        emit isEmptyChanged();
    }

    resetModel();
}

void MaterialBrowserModel::setMaterials(const QList<ModelNode> &materials, bool hasQuick3DImport)
{
    m_materialList = materials;
    m_materialIndexHash.clear();
    for (int i = 0; i < materials.size(); ++i)
        m_materialIndexHash.insert(materials.at(i).internalId(), i);

    bool isEmpty = materials.size() == 0;
    if (isEmpty != m_isEmpty) {
        m_isEmpty = isEmpty;
        emit isEmptyChanged();
    }

    setHasQuick3DImport(hasQuick3DImport);
    updateSelectedMaterial();
    resetModel();
}

void MaterialBrowserModel::removeMaterial(const ModelNode &material)
{
    if (!m_materialIndexHash.contains(material.internalId()))
        return;

    m_materialList.removeOne(material);
    int idx = m_materialIndexHash.value(material.internalId());
    m_materialIndexHash.remove(material.internalId());

    // update index hash
    for (int i = idx; i < rowCount(); ++i)
        m_materialIndexHash.insert(m_materialList.at(i).internalId(), i);

    resetModel();

    if (m_materialList.isEmpty()) {
        m_isEmpty = true;
        emit isEmptyChanged();
    }
}

void MaterialBrowserModel::deleteSelectedMaterial()
{
    if (isValidIndex(m_selectedIndex))
        m_materialList[m_selectedIndex].destroy();
}

void MaterialBrowserModel::updateSelectedMaterial()
{
    selectMaterial(m_selectedIndex, true);
}

void MaterialBrowserModel::updateMaterialName(const ModelNode &material)
{
    int idx = materialIndex(material);
    if (idx != -1)
        emit dataChanged(index(idx, 0), index(idx, 0), {roleNames().key("materialName")});
}

int MaterialBrowserModel::materialIndex(const ModelNode &material) const
{
    if (m_materialIndexHash.contains(material.internalId()))
        return m_materialIndexHash.value(material.internalId());

    return -1;
}

ModelNode MaterialBrowserModel::materialAt(int idx) const
{
    if (isValidIndex(idx))
        return m_materialList.at(idx);

    return {};
}

void MaterialBrowserModel::resetModel()
{
    beginResetModel();
    endResetModel();
}

void MaterialBrowserModel::selectMaterial(int idx, bool force)
{
    if (m_materialList.size() == 0) {
        m_selectedIndex = -1;
        emit selectedIndexChanged(m_selectedIndex);
        return;
    }

    idx = std::max(0, std::min(idx, rowCount() - 1));

    if (idx != m_selectedIndex || force) {
        m_selectedIndex = idx;
        emit selectedIndexChanged(idx);
    }
}

void MaterialBrowserModel::duplicateMaterial(int idx)
{
    emit duplicateMaterialTriggered(m_materialList.at(idx));
}

void MaterialBrowserModel::copyMaterialProperties(int idx)
{
    ModelNode mat = m_materialList.at(idx);
    m_copiedMaterialProps = mat.properties();
    setCopiedMaterialType(mat.type());
}

void MaterialBrowserModel::pasteMaterialProperties(int idx)
{
    emit pasteMaterialPropertiesTriggered(m_materialList.at(idx), m_copiedMaterialProps);
}

void MaterialBrowserModel::deleteMaterial(int idx)
{
    m_materialList[idx].destroy();
}

void MaterialBrowserModel::renameMaterial(int idx, const QString &newName)
{
    ModelNode mat = m_materialList.at(idx);
    emit renameMaterialTriggered(mat, newName);
}

void MaterialBrowserModel::addNewMaterial()
{
    emit addNewMaterialTriggered();
}

void MaterialBrowserModel::applyToSelected(qint64 internalId, bool add)
{
    int idx = m_materialIndexHash.value(internalId);
    if (idx != -1) {
        ModelNode mat = m_materialList.at(idx);
        emit applyToSelectedTriggered(mat, add);
    }
}

void MaterialBrowserModel::openMaterialEditor()
{
    QmlDesignerPlugin::instance()->mainWidget()->showDockWidget("MaterialEditor", true);
}

} // namespace QmlDesigner