1 files changed, 91 insertions, 0 deletions
diff --git a/vcl/qt5/QtSvpSurface.cxx b/vcl/qt5/QtSvpSurface.cxx
new file mode 100644
index 0000000000..760419bd7f
--- /dev/null
+++ b/vcl/qt5/QtSvpSurface.cxx
@@ -0,0 +1,91 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * 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/.
+ */
+
+#include <utility>
+
+#include <QtSvpSurface.hxx>
+
+#include <QtSvpGraphics.hxx>
+
+#include <vcl/sysdata.hxx>
+#include <vcl/bitmap.hxx>
+#include <vcl/virdev.hxx>
+#include <vcl/window.hxx>
+#include <basegfx/vector/b2isize.hxx>
+
+namespace
+{
+Size get_surface_size(cairo_surface_t* surface)
+{
+    cairo_t* cr = cairo_create(surface);
+    double x1, x2, y1, y2;
+    cairo_clip_extents(cr, &x1, &y1, &x2, &y2);
+    cairo_destroy(cr);
+    return Size(x2 - x1, y2 - y1);
+}
+}
+
+namespace cairo
+{
+QtSvpSurface::QtSvpSurface(CairoSurfaceSharedPtr pSurface)
+    : m_pGraphics(nullptr)
+    , m_pCairoContext(nullptr)
+    , m_pSurface(std::move(pSurface))
+{
+}
+
+QtSvpSurface::QtSvpSurface(const QtSvpGraphics* pGraphics, int x, int y, int width, int height)
+    : m_pGraphics(pGraphics)
+    , m_pCairoContext(pGraphics->getCairoContext())
+{
+    cairo_surface_t* surface = cairo_get_target(m_pCairoContext);
+    m_pSurface.reset(cairo_surface_create_for_rectangle(surface, x, y, width, height),
+                     &cairo_surface_destroy);
+}
+
+QtSvpSurface::~QtSvpSurface()
+{
+    if (m_pCairoContext)
+        cairo_destroy(m_pCairoContext);
+}
+
+CairoSharedPtr QtSvpSurface::getCairo() const
+{
+    return CairoSharedPtr(cairo_create(m_pSurface.get()), &cairo_destroy);
+}
+
+SurfaceSharedPtr QtSvpSurface::getSimilar(int cairo_content_type, int width, int height) const
+{
+    return std::make_shared<QtSvpSurface>(CairoSurfaceSharedPtr(
+        cairo_surface_create_similar(
+            m_pSurface.get(), static_cast<cairo_content_t>(cairo_content_type), width, height),
+        &cairo_surface_destroy));
+}
+
+void QtSvpSurface::flush() const
+{
+    cairo_surface_flush(m_pSurface.get());
+    if (m_pGraphics)
+        m_pGraphics->updateQWidget();
+}
+
+VclPtr<VirtualDevice> QtSvpSurface::createVirtualDevice() const
+{
+    SystemGraphicsData aSystemGraphicsData;
+
+    aSystemGraphicsData.nSize = sizeof(SystemGraphicsData);
+    aSystemGraphicsData.pSurface = m_pSurface.get();
+
+    return VclPtr<VirtualDevice>::Create(aSystemGraphicsData, get_surface_size(m_pSurface.get()),
+                                         DeviceFormat::WITHOUT_ALPHA);
+}
+
+} // namespace cairo
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */