move around files

src/widgets/notebookpagedroppreview.cpp

@@ -0,0 +1,54 @@
+#include "widgets/notebookpagedroppreview.h"
+#include "colorscheme.h"
+
+#include <QDebug>
+#include <QPainter>
+
+namespace chatterino {
+namespace widgets {
+
+NotebookPageDropPreview::NotebookPageDropPreview(QWidget *parent)
+    : QWidget(parent)
+    , positionAnimation(this, "geometry")
+    , desiredGeometry()
+    , animate(false)
+{
+    this->positionAnimation.setEasingCurve(QEasingCurve(QEasingCurve::InCubic));
+    this->setHidden(true);
+}
+
+void NotebookPageDropPreview::paintEvent(QPaintEvent *)
+{
+    QPainter painter(this);
+
+    painter.fillRect(8, 8, width() - 17, height() - 17,
+                     ColorScheme::getInstance().DropPreviewBackground);
+}
+
+void NotebookPageDropPreview::hideEvent(QHideEvent *)
+{
+    animate = false;
+}
+
+void NotebookPageDropPreview::setBounds(const QRect &rect)
+{
+    if (rect == this->desiredGeometry) {
+        return;
+    }
+
+    if (animate) {
+        this->positionAnimation.stop();
+        this->positionAnimation.setDuration(50);
+        this->positionAnimation.setStartValue(this->geometry());
+        this->positionAnimation.setEndValue(rect);
+        this->positionAnimation.start();
+    } else {
+        this->setGeometry(rect);
+    }
+
+    this->desiredGeometry = rect;
+
+    animate = true;
+}
+}
+}