1 files changed, 111 insertions, 0 deletions
diff --git a/src/ui/DropShadow.h b/src/ui/DropShadow.h
new file mode 100644
index 00000000..b7ba1985
--- /dev/null
+++ b/src/ui/DropShadow.h
@@ -0,0 +1,111 @@
+#pragma once
+
+#include <QColor>
+#include <QLinearGradient>
+#include <QPainter>
+
+class DropShadow
+{
+public:
+        static void draw(QPainter &painter,
+                         qint16 margin,
+                         qreal radius,
+                         QColor start,
+                         QColor end,
+                         qreal startPosition,
+                         qreal endPosition0,
+                         qreal endPosition1,
+                         qreal width,
+                         qreal height)
+        {
+                painter.setPen(Qt::NoPen);
+
+                QLinearGradient gradient;
+                gradient.setColorAt(startPosition, start);
+                gradient.setColorAt(endPosition0, end);
+
+                // Right
+                QPointF right0(width - margin, height / 2);
+                QPointF right1(width, height / 2);
+                gradient.setStart(right0);
+                gradient.setFinalStop(right1);
+                painter.setBrush(QBrush(gradient));
+                painter.drawRoundRect(
+                  QRectF(QPointF(width - margin * radius, margin), QPointF(width, height - margin)),
+                  0.0,
+                  0.0);
+
+                // Left
+                QPointF left0(margin, height / 2);
+                QPointF left1(0, height / 2);
+                gradient.setStart(left0);
+                gradient.setFinalStop(left1);
+                painter.setBrush(QBrush(gradient));
+                painter.drawRoundRect(
+                  QRectF(QPointF(margin * radius, margin), QPointF(0, height - margin)), 0.0, 0.0);
+
+                // Top
+                QPointF top0(width / 2, margin);
+                QPointF top1(width / 2, 0);
+                gradient.setStart(top0);
+                gradient.setFinalStop(top1);
+                painter.setBrush(QBrush(gradient));
+                painter.drawRoundRect(
+                  QRectF(QPointF(width - margin, 0), QPointF(margin, margin)), 0.0, 0.0);
+
+                // Bottom
+                QPointF bottom0(width / 2, height - margin);
+                QPointF bottom1(width / 2, height);
+                gradient.setStart(bottom0);
+                gradient.setFinalStop(bottom1);
+                painter.setBrush(QBrush(gradient));
+                painter.drawRoundRect(
+                  QRectF(QPointF(margin, height - margin), QPointF(width - margin, height)),
+                  0.0,
+                  0.0);
+
+                // BottomRight
+                QPointF bottomright0(width - margin, height - margin);
+                QPointF bottomright1(width, height);
+                gradient.setStart(bottomright0);
+                gradient.setFinalStop(bottomright1);
+                gradient.setColorAt(endPosition1, end);
+                painter.setBrush(QBrush(gradient));
+                painter.drawRoundRect(QRectF(bottomright0, bottomright1), 0.0, 0.0);
+
+                // BottomLeft
+                QPointF bottomleft0(margin, height - margin);
+                QPointF bottomleft1(0, height);
+                gradient.setStart(bottomleft0);
+                gradient.setFinalStop(bottomleft1);
+                gradient.setColorAt(endPosition1, end);
+                painter.setBrush(QBrush(gradient));
+                painter.drawRoundRect(QRectF(bottomleft0, bottomleft1), 0.0, 0.0);
+
+                // TopLeft
+                QPointF topleft0(margin, margin);
+                QPointF topleft1(0, 0);
+                gradient.setStart(topleft0);
+                gradient.setFinalStop(topleft1);
+                gradient.setColorAt(endPosition1, end);
+                painter.setBrush(QBrush(gradient));
+                painter.drawRoundRect(QRectF(topleft0, topleft1), 0.0, 0.0);
+
+                // TopRight
+                QPointF topright0(width - margin, margin);
+                QPointF topright1(width, 0);
+                gradient.setStart(topright0);
+                gradient.setFinalStop(topright1);
+                gradient.setColorAt(endPosition1, end);
+                painter.setBrush(QBrush(gradient));
+                painter.drawRoundRect(QRectF(topright0, topright1), 0.0, 0.0);
+
+                // Widget
+                painter.setBrush(QBrush("#FFFFFF"));
+                painter.setRenderHint(QPainter::Antialiasing);
+                painter.drawRoundRect(
+                  QRectF(QPointF(margin, margin), QPointF(width - margin, height - margin)),
+                  radius,
+                  radius);
+        }
+};