1 files changed, 43 insertions, 0 deletions
diff --git a/libqpdf/qpdf/QPDFMatrix.hh b/libqpdf/qpdf/QPDFMatrix.hh
new file mode 100644
index 00000000..dcf8b195
--- /dev/null
+++ b/libqpdf/qpdf/QPDFMatrix.hh
@@ -0,0 +1,43 @@
+#ifndef QPDFMATRIX_HH
+#define QPDFMATRIX_HH
+
+#include <qpdf/DLL.h>
+#include <string>
+
+class QPDFMatrix
+{
+  public:
+    QPDF_DLL
+    QPDFMatrix();
+    QPDF_DLL
+    QPDFMatrix(double a, double b, double c,
+               double d, double e, double f);
+
+    QPDF_DLL
+    std::string unparse() const;
+
+    // This is not part of the public API. Just provide the methods we
+    // need as we need them.
+    QPDF_DLL
+    void concat(QPDFMatrix const& other);
+    QPDF_DLL
+    void scale(double sx, double sy);
+    QPDF_DLL
+    void translate(double tx, double ty);
+    // Any value other than 90, 180, or 270 is ignored
+    QPDF_DLL
+    void rotatex90(int angle);
+
+    QPDF_DLL
+    void transform(double x, double y, double& xp, double& yp);
+
+  private:
+    double a;
+    double b;
+    double c;
+    double d;
+    double e;
+    double f;
+};
+
+#endif // QPDFMATRIX_HH