From 5bed6e4a4c916a97f8fe4d1b07f7eecf4d733b90 Mon Sep 17 00:00:00 2001
From: Michele Calgaro <michele.calgaro@yahoo.it>
Date: Fri, 22 Nov 2024 18:41:30 +0900
Subject: Rename 'digikam' folder to 'src'

Signed-off-by: Michele Calgaro <michele.calgaro@yahoo.it>
(cherry picked from commit ee0d99607c14cb63d3ebdb3a970b508949fa8219)
---
 src/imageplugins/perspective/matrix.h | 106 ++++++++++++++++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 src/imageplugins/perspective/matrix.h

(limited to 'src/imageplugins/perspective/matrix.h')

diff --git a/src/imageplugins/perspective/matrix.h b/src/imageplugins/perspective/matrix.h
new file mode 100644
index 00000000..fbc5a1aa
--- /dev/null
+++ b/src/imageplugins/perspective/matrix.h
@@ -0,0 +1,106 @@
+/* ============================================================
+ *
+ * This file is a part of digiKam project
+ * http://www.digikam.org
+ *
+ * Date        : 2005-02-17
+ * Description : a matrix implementation for image
+ *               perspective adjustment.
+ * 
+ * Copyright (C) 2005-2007 by Gilles Caulier <caulier dot gilles at gmail dot com>
+ * Copyright (C) 2006-2007 by Marcel Wiesweg <marcel dot wiesweg at gmx dot de>
+ * 
+ * This program is free software; you can redistribute it
+ * and/or modify it under the terms of the GNU General
+ * Public License as published by the Free Software Foundation;
+ * either version 2, or (at your option)
+ * any later version.
+ * 
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * 
+ * ============================================================ */
+
+#ifndef IMAGEEFFECT_PERSPECTIVE_MATRIX_H
+#define IMAGEEFFECT_PERSPECTIVE_MATRIX_H
+
+namespace DigikamPerspectiveImagesPlugin
+{
+
+class Matrix
+{
+public:
+
+    /**
+    * Matrix:
+    *
+    * Initializes matrix to the identity matrix.
+    */
+    Matrix();
+
+    /**
+     * translate:
+     * @x: Translation in X direction.
+     * @y: Translation in Y direction.
+     *
+     * Translates the matrix by x and y.
+     */
+    void   translate(double x, double y);
+
+    /**
+    * scale:
+    * @x: X scale factor.
+    * @y: Y scale factor.
+    *
+    * Scales the matrix by x and y
+    */
+    void   scale(double x, double y);
+
+    /**
+    * invert:
+    *
+    * Inverts this matrix.
+    */
+    void   invert();
+
+    /**
+    * multiply:
+    * @matrix: The other input matrix.
+    *
+    * Multiplies this matrix with another matrix
+    */
+    void   multiply(const Matrix &matrix1);
+
+    /**
+    * transformPoint:
+    * @x: The source X coordinate.
+    * @y: The source Y coordinate.
+    * @newx: The transformed X coordinate.
+    * @newy: The transformed Y coordinate.
+    *
+    * Transforms a point in 2D as specified by the transformation matrix.
+    */
+    void   transformPoint(double x, double y, double *newx, double *newy) const;
+
+    /**
+    * determinant:
+    *
+    * Calculates the determinant of this matrix.
+    *
+    * Returns: The determinant.
+    */
+    double determinant() const;
+
+    /**
+    * coeff:
+    *
+    * The 3x3 matrix data
+    */
+    double coeff[3][3];
+};
+
+}  // namespace DigikamPerspectiveImagesPlugin
+
+#endif // IMAGEEFFECT_PERSPECTIVE_MATRIX_H
-- 
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