feat: More interactive explorer

editor/explorermodel.cpp

@@ -1,5 +1,6 @@
 #include "explorermodel.h"
 #include "objects/base/instance.h"
+#include "qabstractitemmodel.h"
 #include "qcontainerfwd.h"
 #include "qicon.h"
 #include "qimage.h"
@@ -8,6 +9,8 @@
 #include "qwidget.h"
 #include "common.h"
 #include <algorithm>
+#include <cstdio>
+#include <memory>
 #include <optional>
 #include "objects/base/instance.h"
 
@@ -116,6 +119,14 @@ QVariant ExplorerModel::data(const QModelIndex &index, int role) const {
     return {};
 }
 
+bool ExplorerModel::setData(const QModelIndex &index, const QVariant &value, int role) {
+    if (!index.isValid() || role != Qt::EditRole) return false;
+
+    Instance* inst = static_cast<Instance*>(index.internalPointer());
+    inst->name = value.toString().toStdString();
+    return true;
+}
+
 QVariant ExplorerModel::headerData(int section, Qt::Orientation orientation,
                                int role) const
 {
@@ -124,8 +135,11 @@ QVariant ExplorerModel::headerData(int section, Qt::Orientation orientation,
 
 Qt::ItemFlags ExplorerModel::flags(const QModelIndex &index) const
 {
+    //return index.isValid()
+    //    ? QAbstractItemModel::flags(index) : Qt::ItemFlags(Qt::NoItemFlags);
     return index.isValid()
-        ? QAbstractItemModel::flags(index) : Qt::ItemFlags(Qt::NoItemFlags);
+        ? QAbstractItemModel::flags(index) | Qt::ItemIsEditable | Qt::ItemIsDragEnabled | Qt::ItemIsDropEnabled
+        : Qt::NoItemFlags | Qt::ItemIsDropEnabled;
 }
 
 QImage ExplorerModel::iconOf(InstanceType* type) const {
@@ -137,4 +151,55 @@ QImage ExplorerModel::iconOf(InstanceType* type) const {
     QImage icon("assets/icons/" + QString::fromStdString(currentClass->explorerIcon));
     instanceIconCache[type->className] = icon;
     return icon;
+}
+
+bool ExplorerModel::moveRows(const QModelIndex &sourceParentIdx, int sourceRow, int count, const QModelIndex &destinationParentIdx, int destinationChild) {
+    Instance* sourceParent = sourceParentIdx.isValid() ? static_cast<Instance*>(sourceParentIdx.internalPointer()) : workspace.get();
+    Instance* destinationParent = destinationParentIdx.isValid() ? static_cast<Instance*>(destinationParentIdx.internalPointer()) : workspace.get();
+
+    printf("Moved %d from %s\n", count, sourceParent->name.c_str());
+
+    if ((sourceRow + count) >= sourceParent->GetChildren().size()) {
+        fprintf(stderr, "Attempt to move rows %d-%d from %s (%s) while it only has %d children.\n", sourceRow, sourceRow + count, sourceParent->name.c_str(), sourceParent->GetClass()->className.c_str(), sourceParent->GetChildren().size());
+        return false;
+    }
+
+    for (int i = sourceRow; i < (sourceRow + count); i++) {
+        sourceParent->GetChildren()[i]->SetParent(destinationParent->shared_from_this());
+    }
+
+    return true;
+}
+
+bool ExplorerModel::removeRows(int row, int count, const QModelIndex& parentIdx) {
+    Instance* parent = parentIdx.isValid() ? static_cast<Instance*>(parentIdx.internalPointer()) : workspace.get();
+    
+    for (int i = row; i < (row + count); i++) {
+        //parent->GetChildren()[i]->SetParent(nullptr);
+    }
+
+    return true;
+}
+
+bool ExplorerModel::insertRows(int row, int count, const QModelIndex & parentIdx) {
+    //Instance* parent = parentIdx.isValid() ? static_cast<Instance*>(parentIdx.internalPointer()) : workspace.get();
+    //beginInsertRows(parentIdx, parent->GetChildren().size(), parent->GetChildren().size() + count);
+    //for ()
+    //endInsertRows();
+    //return true;
+    return false;
+}
+
+Qt::DropActions ExplorerModel::supportedDragActions() const {
+    return Qt::DropAction::MoveAction;
+}
+
+Qt::DropActions ExplorerModel::supportedDropActions() const {
+    return Qt::DropAction::MoveAction;
+}
+
+
+InstanceRef ExplorerModel::fromIndex(const QModelIndex index) {
+    if (!index.isValid()) return workspace;
+    return static_cast<Instance*>(index.internalPointer())->shared_from_this();
 }

editor/explorermodel.h

@@ -5,6 +5,7 @@
 #include "objects/part.h"
 #include "qabstractitemmodel.h"
 #include "qevent.h"
+#include "qnamespace.h"
 #include <QOpenGLWidget>
 #include <QWidget>
 #include <memory>
@@ -18,6 +19,7 @@ public:
     ~ExplorerModel() override;
 
     QVariant data(const QModelIndex &index, int role) const override;
+    bool setData(const QModelIndex &index, const QVariant &value, int role) override;
     Qt::ItemFlags flags(const QModelIndex &index) const override;
     QVariant headerData(int section, Qt::Orientation orientation,
                         int role = Qt::DisplayRole) const override;
@@ -26,7 +28,12 @@ public:
     QModelIndex parent(const QModelIndex &index) const override;
     int rowCount(const QModelIndex &parent = {}) const override;
     int columnCount(const QModelIndex &parent = {}) const override;
-
+    bool moveRows(const QModelIndex &sourceParent, int sourceRow, int count, const QModelIndex &destinationParent, int destinationChild) override;
+    bool removeRows(int row, int count, const QModelIndex & parent = QModelIndex()) override;
+    bool insertRows(int row, int count, const QModelIndex & parent = QModelIndex()) override;
+    Qt::DropActions supportedDragActions() const override;
+    Qt::DropActions supportedDropActions() const override;
+    InstanceRef fromIndex(const QModelIndex index);
 private:
     InstanceRef rootItem;
     QModelIndex toIndex(InstanceRef item);

editor/mainwindow.cpp

@@ -11,24 +11,63 @@
 #include <QTreeView>
 #include <QAbstractItemView>
 #include <memory>
+#include <optional>
 
 #include "common.h"
 #include "physics/simulation.h"
 #include "objects/part.h"
 #include "explorermodel.h"
 
-#include "wayland-pointer-constraints-unstable-v1-client-protocol.h"
+#include "qabstractitemview.h"
+#include "qevent.h"
+#include "qnamespace.h"
+#include "qobject.h"
+
+class ExplorerEventFilter : public QObject {
+
+private:
+    QTreeView* explorerView;
+    ExplorerModel* model;
+
+    bool keyPress(QObject* object, QKeyEvent *event) {
+        switch (event->key()) {
+        case Qt::Key_Delete:
+            QModelIndexList selectedIndexes = explorerView->selectionModel()->selectedIndexes();
+            for (QModelIndex index : selectedIndexes) {
+                model->fromIndex(index)->SetParent(std::nullopt);
+            }
+            break;
+        }
+
+        return QObject::eventFilter(object, event);
+    }
+
+    bool eventFilter(QObject *object, QEvent *event) {
+        if (event->type() == QEvent::KeyPress)
+            return keyPress(object, dynamic_cast<QKeyEvent*>(event));
+        return QObject::eventFilter(object, event);
+    }
+public:
+    ExplorerEventFilter(QTreeView* explorerView, ExplorerModel* model): explorerView(explorerView), model(model) {}
+};
 
 MainWindow::MainWindow(QWidget *parent)
     : QMainWindow(parent)
     , ui(new Ui::MainWindow)
+    , explorerModel(ExplorerModel(std::dynamic_pointer_cast<Instance>(workspace)))
 {
     ui->setupUi(this);
     timer.start(33, this);
     setMouseTracking(true);
 
-    ui->explorerView->setModel(new ExplorerModel(std::dynamic_pointer_cast<Instance>(workspace)));
+    ui->explorerView->setModel(&explorerModel);
     ui->explorerView->setRootIsDecorated(false);
+    ui->explorerView->setDragDropMode(QAbstractItemView::InternalMove);
+    ui->explorerView->setSelectionMode(QAbstractItemView::ExtendedSelection);
+    ui->explorerView->setDragEnabled(true);
+    ui->explorerView->setAcceptDrops(true);
+    ui->explorerView->setDropIndicatorShown(true);
+    ui->explorerView->installEventFilter(new ExplorerEventFilter(ui->explorerView, &explorerModel));
 
     simulationInit();
 
@@ -44,6 +83,7 @@ MainWindow::MainWindow(QWidget *parent)
         },
         .anchored = true,
     }));
+    ui->mainWidget->lastPart->name = "Baseplate";
     syncPartPhysics(ui->mainWidget->lastPart);
 
     workspace->AddChild(ui->mainWidget->lastPart = Part::New({

editor/mainwindow.h

@@ -1,6 +1,7 @@
 #ifndef MAINWINDOW_H
 #define MAINWINDOW_H
 
+#include "explorermodel.h"
 #include "qbasictimer.h"
 #include "qcoreevent.h"
 #include <QMainWindow>
@@ -21,6 +22,7 @@ public:
     ~MainWindow();
     
 private:
+    ExplorerModel explorerModel;
     Ui::MainWindow *ui;
     QBasicTimer timer;
 

run.sh

@@ -1 +1,7 @@
-cmake . && cmake --build . && ./bin/$1
+[ "$2" = "-debug" ] && CMAKE_OPTS=-DCMAKE_BUILD_TYPE=Debug
+[ "$2" = "-release" ] && CMAKE_OPTS=-DCMAKE_BUILD_TYPE=Release
+[ "$2" = "-reldbg" ] && CMAKE_OPTS=-DCMAKE_BUILD_TYPE=RelWithDebInfo
+
+[ "$3" = "-gdb" ] && PRE_COMMAND="gdb -ex run "
+
+cmake $CMAKE_OPTS . && cmake --build . && $PRE_COMMAND ./bin/$1