Adding upstream version 1:7.0.4.upstream/1%7.0.4upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 75 insertions, 0 deletions

diff --git a/vcl/inc/win/scoped_gdi.hxx b/vcl/inc/win/scoped_gdi.hxx
new file mode 100644
index 000000000..d02ad9545
--- /dev/null
+++ b/vcl/inc/win/scoped_gdi.hxx
@@ -0,0 +1,75 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4; fill-column: 100 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ */
+
+#ifndef INCLUDED_VCL_INC_WIN_SCOPED_GDI_HXX
+#define INCLUDED_VCL_INC_WIN_SCOPED_GDI_HXX
+
+#include <win/svsys.h>
+#include <win/wincomp.hxx>
+#include <win/saldata.hxx>
+
+#include <memory>
+
+template <typename H, auto DeleterFunc> struct GDIDeleter
+{
+    using pointer = H;
+    void operator()(H h) { DeleterFunc(h); }
+};
+
+template <typename H, auto DeleterFunc>
+using ScopedGDI = std::unique_ptr<H, GDIDeleter<H, DeleterFunc>>;
+
+using ScopedHBRUSH = ScopedGDI<HBRUSH, DeleteBrush>;
+using ScopedHRGN = ScopedGDI<HRGN, DeleteRegion>;
+using ScopedHDC = ScopedGDI<HDC, DeleteDC>;
+using ScopedHPEN = ScopedGDI<HPEN, DeletePen>;
+using ScopedHFONT = ScopedGDI<HFONT, DeleteFont>;
+using ScopedHBITMAP = ScopedGDI<HBITMAP, DeleteBitmap>;
+
+template <typename ScopedH, auto SelectorFunc> class ScopedSelectedGDI
+{
+public:
+    ScopedSelectedGDI(HDC hDC, typename ScopedH::pointer h)
+        : m_hDC(hDC)
+        , m_hSelectedH(h)
+        , m_hOrigH(SelectorFunc(hDC, h))
+    {
+    }
+
+    ~ScopedSelectedGDI() { SelectorFunc(m_hDC, m_hOrigH); }
+
+private:
+    HDC m_hDC;
+    ScopedH m_hSelectedH;
+    typename ScopedH::pointer m_hOrigH;
+};
+
+using ScopedSelectedHPEN = ScopedSelectedGDI<ScopedHPEN, SelectPen>;
+using ScopedSelectedHFONT = ScopedSelectedGDI<ScopedHFONT, SelectFont>;
+using ScopedSelectedHBRUSH = ScopedSelectedGDI<ScopedHBRUSH, SelectBrush>;
+
+template <sal_uLong ID> class ScopedCachedHDC
+{
+public:
+    explicit ScopedCachedHDC(HBITMAP hBitmap)
+        : m_hDC(ImplGetCachedDC(ID, hBitmap))
+    {
+    }
+
+    ~ScopedCachedHDC() { ImplReleaseCachedDC(ID); }
+
+    HDC get() const { return m_hDC; }
+
+private:
+    HDC m_hDC;
+};
+
+#endif // INCLUDED_VCL_INC_WIN_SCOPED_GDI_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab cinoptions=b1,g0,N-s cinkeys+=0=break: */