Add skin preview

Signed-off-by: Trial97 <alexandru.tripon97@gmail.com>

launcher/ui/dialogs/skins/draw/BoxGeometry.h

@@ -0,0 +1,28 @@
+#pragma once
+
+#include <QMatrix4x4>
+#include <QOpenGLBuffer>
+#include <QOpenGLFunctions>
+#include <QOpenGLShaderProgram>
+#include <QVector3D>
+
+namespace opengl {
+class BoxGeometry : protected QOpenGLFunctions {
+   public:
+    BoxGeometry(QVector3D size, QVector3D position);
+    BoxGeometry(QVector3D size, QVector3D position, QPoint uv, QVector3D textureDim, QSize textureSize = { 64, 64 });
+    virtual ~BoxGeometry();
+
+    void draw(QOpenGLShaderProgram* program);
+
+    void initGeometry(float u, float v, float width, float height, float depth, float textureWidth = 64, float textureHeight = 64);
+    void rotate(float angle, const QVector3D& vector);
+
+   private:
+    QOpenGLBuffer m_vertexBuf;
+    QOpenGLBuffer m_indexBuf;
+    QVector3D m_size;
+    QVector3D m_position;
+    QMatrix4x4 m_matrix;
+};
+}  // namespace opengl