add EventMove command, fix extra signal call in map border resize

include/ui/draggablepixmapitem.h

@@ -0,0 +1,78 @@
+#ifndef DRAGGABLEPIXMAPITEM_H
+#define DRAGGABLEPIXMAPITEM_H
+
+#include <QString>
+#include <QGraphicsItemGroup>
+#include <QGraphicsPixmapItem>
+#include <QGraphicsItemAnimation>
+
+#include <QtWidgets>
+
+#include "event.h"
+
+class Editor;
+
+class DraggablePixmapItem : public QObject, public QGraphicsPixmapItem {
+    Q_OBJECT
+public:
+    DraggablePixmapItem(QPixmap pixmap): QGraphicsPixmapItem(pixmap) {}
+    
+    DraggablePixmapItem(Event *event_, Editor *editor_) : QGraphicsPixmapItem(event_->pixmap) {
+        event = event_;
+        event->setPixmapItem(this);
+        editor = editor_;
+        updatePosition();
+    }
+
+    Editor *editor = nullptr;
+    Event *event = nullptr;
+    QGraphicsItemAnimation *pos_anim = nullptr;
+
+    bool active;
+    int last_x;
+    int last_y;
+
+    void updatePosition();
+    void move(int x, int y);
+    void emitPositionChanged();
+    void updatePixmap();
+    void bind(QComboBox *combo, QString key);
+    void bindToUserData(QComboBox *combo, QString key);
+
+signals:
+    void positionChanged(Event *event);
+    void xChanged(int);
+    void yChanged(int);
+    void elevationChanged(int);
+    void spriteChanged(QPixmap pixmap);
+    void onPropertyChanged(QString key, QString value);
+
+public slots:
+    void set_x(const QString &text) {
+        event->put("x", text);
+        updatePosition();
+    }
+    void set_y(const QString &text) {
+        event->put("y", text);
+        updatePosition();
+    }
+    void set_elevation(const QString &text) {
+        event->put("elevation", text);
+        updatePosition();
+    }
+    void set_sprite(const QString &text) {
+        event->put("sprite", text);
+        updatePixmap();
+    }
+    void set_script(const QString &text) {
+        event->put("script_label", text);
+    }
+
+protected:
+    void mousePressEvent(QGraphicsSceneMouseEvent*);
+    void mouseMoveEvent(QGraphicsSceneMouseEvent*);
+    void mouseReleaseEvent(QGraphicsSceneMouseEvent*);
+    void mouseDoubleClickEvent(QGraphicsSceneMouseEvent*);
+};
+
+#endif // DRAGGABLEPIXMAPITEM_H