Add bone attachment edit interface

application/sources/bone_property_widget.cc

@@ -22,6 +22,38 @@ BonePropertyWidget::BonePropertyWidget(Document* document,
     QVBoxLayout* mainLayout = new QVBoxLayout;
 
     if (nullptr != m_bone) {
+        m_parentBoneComboBox = new QComboBox;
+        m_parentBoneComboBox->addItem(tr("None"));
+
+        m_parentJointComboBox = new QComboBox;
+        m_parentJointComboBox->addItem(tr("1"));
+        m_parentJointComboBox->setVisible(false);
+
+        QHBoxLayout* parentBoneAndJointLayout = new QHBoxLayout;
+        parentBoneAndJointLayout->addWidget(m_parentBoneComboBox);
+        parentBoneAndJointLayout->addWidget(m_parentJointComboBox);
+
+        for (size_t i = 0; i < m_document->boneIdList.size(); ++i) {
+            const auto& boneId = m_document->boneIdList[i];
+            if (boneId == m_boneId)
+                continue;
+            const Document::Bone* bone = m_document->findBone(boneId);
+            if (nullptr == bone)
+                continue;
+            m_parentBoneComboBox->addItem(QIcon(bone->previewPixmap), bone->name, QVariant(QString::fromStdString(boneId.toString())));
+            if (m_bone->attachBoneId == boneId)
+                m_parentBoneComboBox->setCurrentIndex(m_parentBoneComboBox->count() - 1);
+        }
+        updateBoneJointComboBox();
+
+        connect(m_parentBoneComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &BonePropertyWidget::updateBoneJointComboBox);
+        connect(m_parentJointComboBox, QOverload<int>::of(&QComboBox::currentIndexChanged), this, &BonePropertyWidget::synchronizeBoneAttachmentFromControls);
+
+        QHBoxLayout* parentLayout = new QHBoxLayout;
+        parentLayout->addWidget(new QLabel(tr("Parent")));
+        parentLayout->addLayout(parentBoneAndJointLayout);
+        parentLayout->addStretch();
+
         m_nameEdit = new QLineEdit;
         Theme::initLineEdit(m_nameEdit);
         m_nameEdit->setFixedWidth(Theme::partPreviewImageSize * 2.7);
@@ -51,20 +83,51 @@ BonePropertyWidget::BonePropertyWidget(Document* document,
         jointsLayout->addStretch();
         jointsLayout->addWidget(nodePicker);
 
+        mainLayout->addLayout(parentLayout);
         mainLayout->addLayout(renameLayout);
         mainLayout->addLayout(jointsLayout);
     }
 
     mainLayout->setSizeConstraint(QLayout::SetFixedSize);
 
     connect(this, &BonePropertyWidget::renameBone, m_document, &Document::renameBone);
+    connect(this, &BonePropertyWidget::setBoneAttachment, m_document, &Document::setBoneAttachment);
     connect(this, &BonePropertyWidget::groupOperationAdded, m_document, &Document::saveSnapshot);
 
     setLayout(mainLayout);
 
     setFixedSize(minimumSizeHint());
 }
 
+dust3d::Uuid BonePropertyWidget::editingParentBoneId()
+{
+    return dust3d::Uuid(m_parentBoneComboBox->currentData().toString().toStdString());
+}
+
+int BonePropertyWidget::editingParentJointIndex()
+{
+    return dust3d::String::toInt(m_parentJointComboBox->currentText().toStdString()) - 1;
+}
+
+void BonePropertyWidget::synchronizeBoneAttachmentFromControls()
+{
+    if (nullptr == m_bone)
+        return;
+
+    auto parentBoneId = editingParentBoneId();
+    int parentJointIndex = editingParentJointIndex();
+
+    if (-1 == parentJointIndex) {
+        // The joint control is initializing, ignore
+        return;
+    }
+
+    if (m_bone->attachBoneId == parentBoneId && parentJointIndex == m_bone->attachBoneJointIndex)
+        return;
+
+    emit setBoneAttachment(m_boneId, parentBoneId, parentJointIndex);
+}
+
 void BonePropertyWidget::prepareBoneIds()
 {
     if (1 == m_boneIds.size()) {
@@ -82,3 +145,29 @@ void BonePropertyWidget::nameEditChanged()
     emit renameBone(m_boneId, m_nameEdit->text());
     emit groupOperationAdded();
 }
+
+void BonePropertyWidget::updateBoneJointComboBox()
+{
+    if (nullptr == m_bone)
+        return;
+
+    auto parentBoneId = editingParentBoneId();
+    const Document::Bone* parentBone = m_document->findBone(parentBoneId);
+    if (nullptr == parentBone || parentBone->joints.size() < 2) {
+        if (1 == m_parentJointComboBox->count())
+            return;
+        m_parentJointComboBox->clear();
+        m_parentJointComboBox->addItem(tr("1"));
+        m_parentJointComboBox->setVisible(false);
+        synchronizeBoneAttachmentFromControls();
+        return;
+    }
+    m_parentJointComboBox->clear();
+    for (size_t i = 0; i < parentBone->joints.size(); ++i) {
+        m_parentJointComboBox->addItem(QString::number(i + 1));
+        if (i == m_bone->attachBoneJointIndex)
+            m_parentJointComboBox->setCurrentIndex(m_parentJointComboBox->count() - 1);
+    }
+    m_parentJointComboBox->setVisible(true);
+    synchronizeBoneAttachmentFromControls();
+}

application/sources/bone_property_widget.h

@@ -7,29 +7,37 @@
 #include <dust3d/base/uuid.h>
 
 class QLineEdit;
+class QComboBox;
 
 class BonePropertyWidget : public QWidget {
     Q_OBJECT
 signals:
     void renameBone(const dust3d::Uuid& boneId, const QString& name);
     void groupOperationAdded();
     void pickBoneJoints(const dust3d::Uuid& boneId, size_t joints);
+    void setBoneAttachment(const dust3d::Uuid& boneId, const dust3d::Uuid& toBoneId, int toBoneJointIndex);
 
 public:
     BonePropertyWidget(Document* document,
         const std::vector<dust3d::Uuid>& boneIds,
         QWidget* parent = nullptr);
 private slots:
     void nameEditChanged();
+    void updateBoneJointComboBox();
+    void synchronizeBoneAttachmentFromControls();
 
 private:
     Document* m_document = nullptr;
     std::vector<dust3d::Uuid> m_boneIds;
     dust3d::Uuid m_boneId;
     const Document::Bone* m_bone = nullptr;
     QLineEdit* m_nameEdit = nullptr;
+    QComboBox* m_parentBoneComboBox = nullptr;
+    QComboBox* m_parentJointComboBox = nullptr;
     IntNumberWidget* m_jointsWidget = nullptr;
     void prepareBoneIds();
+    dust3d::Uuid editingParentBoneId();
+    int editingParentJointIndex();
 };
 
 #endif