Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

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

1 files changed, 466 insertions, 0 deletions

diff --git a/sd/source/ui/presenter/PresenterHelper.cxx b/sd/source/ui/presenter/PresenterHelper.cxx
new file mode 100644
index 000000000..a93113a75
--- /dev/null
+++ b/sd/source/ui/presenter/PresenterHelper.cxx
@@ -0,0 +1,466 @@
+/* -*- 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/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#include <sal/config.h>
+
+#include <cstddef>
+
+#include "PresenterHelper.hxx"
+#include "PresenterCanvas.hxx"
+#include <cppcanvas/vclfactory.hxx>
+#include <com/sun/star/awt/XWindowPeer.hpp>
+#include <com/sun/star/uno/XComponentContext.hpp>
+#include <toolkit/helper/vclunohelper.hxx>
+#include <vcl/window.hxx>
+#include <vcl/wrkwin.hxx>
+
+
+#include <bitmaps.hlst>
+
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+
+namespace sd::presenter {
+
+//===== PresenterHelper =======================================================
+
+PresenterHelper::PresenterHelper (
+    const Reference<XComponentContext>& rxContext)
+    : mxComponentContext(rxContext)
+{
+}
+
+PresenterHelper::~PresenterHelper()
+{
+}
+
+//----- XInitialize -----------------------------------------------------------
+
+void SAL_CALL PresenterHelper::initialize (const Sequence<Any>&) {}
+
+//----- XPaneHelper ----------------------------------------------------
+
+Reference<awt::XWindow> SAL_CALL PresenterHelper::createWindow (
+    const Reference<awt::XWindow>& rxParentWindow,
+    sal_Bool bCreateSystemChildWindow,
+    sal_Bool bInitiallyVisible,
+    sal_Bool bEnableChildTransparentMode,
+    sal_Bool bEnableParentClip)
+{
+    VclPtr<vcl::Window> pParentWindow(VCLUnoHelper::GetWindow(rxParentWindow));
+
+    // Create a new window.
+    VclPtr<vcl::Window> pWindow;
+    if (bCreateSystemChildWindow)
+    {
+        pWindow = VclPtr<WorkWindow>::Create(pParentWindow, WB_SYSTEMCHILDWINDOW);
+    }
+    else
+    {
+        pWindow = VclPtr<vcl::Window>::Create(pParentWindow);
+    }
+    Reference<awt::XWindow> xWindow (pWindow->GetComponentInterface(), UNO_QUERY);
+
+    if (bEnableChildTransparentMode)
+    {
+        // Make the frame window transparent and make the parent able to
+        // draw behind it.
+        if (pParentWindow)
+            pParentWindow->EnableChildTransparentMode();
+    }
+
+    pWindow->Show(bInitiallyVisible);
+
+    pWindow->SetMapMode(MapMode(MapUnit::MapPixel));
+    pWindow->SetBackground();
+    if ( ! bEnableParentClip)
+    {
+        pWindow->SetParentClipMode(ParentClipMode::NoClip);
+        pWindow->SetPaintTransparent(true);
+    }
+    else
+    {
+        pWindow->SetParentClipMode(ParentClipMode::Clip);
+        pWindow->SetPaintTransparent(false);
+    }
+
+    return xWindow;
+}
+
+Reference<rendering::XCanvas> SAL_CALL PresenterHelper::createSharedCanvas (
+    const Reference<rendering::XSpriteCanvas>& rxUpdateCanvas,
+    const Reference<awt::XWindow>& rxUpdateWindow,
+    const Reference<rendering::XCanvas>& rxSharedCanvas,
+    const Reference<awt::XWindow>& rxSharedWindow,
+    const Reference<awt::XWindow>& rxWindow)
+{
+    if ( ! rxSharedCanvas.is()
+        || ! rxSharedWindow.is()
+        || ! rxWindow.is())
+    {
+        throw RuntimeException("illegal argument", static_cast<XWeak*>(this));
+    }
+
+    if (rxWindow == rxSharedWindow)
+        return rxSharedCanvas;
+    else
+        return new PresenterCanvas(
+            rxUpdateCanvas,
+            rxUpdateWindow,
+            rxSharedCanvas,
+            rxSharedWindow,
+            rxWindow);
+}
+
+Reference<rendering::XCanvas> SAL_CALL PresenterHelper::createCanvas (
+    const Reference<awt::XWindow>& rxWindow,
+    sal_Int16,
+    const OUString& rsOptionalCanvasServiceName)
+{
+    // No shared window is given or an explicit canvas service name is
+    // specified.  Create a new canvas.
+    VclPtr<vcl::Window> pWindow = VCLUnoHelper::GetWindow(rxWindow);
+    if (!pWindow)
+        throw RuntimeException();
+
+    Sequence<Any> aArg{ // common: first any is VCL pointer to window (for VCL canvas)
+                        Any(reinterpret_cast<sal_Int64>(pWindow.get())),
+                        Any(css::awt::Rectangle()),
+                        Any(false),
+                        Any(rxWindow)
+    };
+
+    Reference<lang::XMultiServiceFactory> xFactory (
+        mxComponentContext->getServiceManager(), UNO_QUERY_THROW);
+    return Reference<rendering::XCanvas>(
+        xFactory->createInstanceWithArguments(
+            !rsOptionalCanvasServiceName.isEmpty()
+                ? rsOptionalCanvasServiceName
+                : OUString("com.sun.star.rendering.Canvas.VCL"),
+            aArg),
+        UNO_QUERY);
+}
+
+void SAL_CALL PresenterHelper::toTop (
+    const Reference<awt::XWindow>& rxWindow)
+{
+    VclPtr<vcl::Window> pWindow = VCLUnoHelper::GetWindow(rxWindow);
+    if (pWindow)
+    {
+        pWindow->ToTop();
+        pWindow->SetZOrder(nullptr, ZOrderFlags::Last);
+    }
+}
+
+namespace {
+
+struct IdMapEntry {
+    char const * sid;
+    rtl::OUStringConstExpr bmpid;
+};
+
+}
+
+Reference<rendering::XBitmap> SAL_CALL PresenterHelper::loadBitmap (
+    const OUString& id,
+    const Reference<rendering::XCanvas>& rxCanvas)
+{
+    if ( ! rxCanvas.is())
+        return nullptr;
+
+    static IdMapEntry const map[] = {
+        { "bitmaps/Background.png", BMP_PRESENTERSCREEN_BACKGROUND },
+        { "bitmaps/Animation.png",
+          BMP_PRESENTERSCREEN_ANIMATION },
+        { "bitmaps/Transition.png",
+          BMP_PRESENTERSCREEN_TRANSITION },
+        { "bitmaps/BorderActiveBottom.png",
+          BMP_PRESENTERSCREEN_BORDER_ACTIVE_BOTTOM },
+        { "bitmaps/BorderActiveBottomCallout.png",
+          BMP_PRESENTERSCREEN_BORDER_ACTIVE_BOTTOM_CALLOUT },
+        { "bitmaps/BorderActiveBottomLeft.png",
+          BMP_PRESENTERSCREEN_BORDER_ACTIVE_BOTTOM_LEFT },
+        { "bitmaps/BorderActiveBottomRight.png",
+          BMP_PRESENTERSCREEN_BORDER_ACTIVE_BOTTOM_RIGHT },
+        { "bitmaps/BorderActiveLeft.png",
+          BMP_PRESENTERSCREEN_BORDER_ACTIVE_LEFT },
+        { "bitmaps/BorderActiveRight.png",
+          BMP_PRESENTERSCREEN_BORDER_ACTIVE_RIGHT },
+        { "bitmaps/BorderActiveTop.png",
+          BMP_PRESENTERSCREEN_BORDER_ACTIVE_TOP },
+        { "bitmaps/BorderActiveTopLeft.png",
+          BMP_PRESENTERSCREEN_BORDER_ACTIVE_TOP_LEFT },
+        { "bitmaps/BorderActiveTopRight.png",
+          BMP_PRESENTERSCREEN_BORDER_ACTIVE_TOP_RIGHT },
+        { "bitmaps/BorderBottom.png", BMP_PRESENTERSCREEN_BORDER_BOTTOM },
+        { "bitmaps/BorderBottomLeft.png",
+          BMP_PRESENTERSCREEN_BORDER_BOTTOM_LEFT },
+        { "bitmaps/BorderBottomRight.png",
+          BMP_PRESENTERSCREEN_BORDER_BOTTOM_RIGHT },
+        { "bitmaps/BorderCurrentSlideBottom.png",
+          BMP_PRESENTERSCREEN_BORDER_CURRENT_SLIDE_BOTTOM },
+        { "bitmaps/BorderCurrentSlideBottomLeft.png",
+          BMP_PRESENTERSCREEN_BORDER_CURRENT_SLIDE_BOTTOM_LEFT },
+        { "bitmaps/BorderCurrentSlideBottomRight.png",
+          BMP_PRESENTERSCREEN_BORDER_CURRENT_SLIDE_BOTTOM_RIGHT },
+        { "bitmaps/BorderCurrentSlideLeft.png",
+          BMP_PRESENTERSCREEN_BORDER_CURRENT_SLIDE_LEFT },
+        { "bitmaps/BorderCurrentSlideRight.png",
+          BMP_PRESENTERSCREEN_BORDER_CURRENT_SLIDE_RIGHT },
+        { "bitmaps/BorderCurrentSlideTop.png",
+          BMP_PRESENTERSCREEN_BORDER_CURRENT_SLIDE_TOP },
+        { "bitmaps/BorderCurrentSlideTopLeft.png",
+          BMP_PRESENTERSCREEN_BORDER_CURRENT_SLIDE_TOP_LEFT },
+        { "bitmaps/BorderCurrentSlideTopRight.png",
+          BMP_PRESENTERSCREEN_BORDER_CURRENT_SLIDE_TOP_RIGHT },
+        { "bitmaps/BorderLeft.png", BMP_PRESENTERSCREEN_BORDER_LEFT },
+        { "bitmaps/BorderRight.png", BMP_PRESENTERSCREEN_BORDER_RIGHT },
+        { "bitmaps/BorderToolbarBottom.png",
+          BMP_PRESENTERSCREEN_BORDER_TOOLBAR_BOTTOM },
+        { "bitmaps/BorderToolbarLeft.png",
+          BMP_PRESENTERSCREEN_BORDER_TOOLBAR_LEFT },
+        { "bitmaps/BorderToolbarRight.png",
+          BMP_PRESENTERSCREEN_BORDER_TOOLBAR_RIGHT },
+        { "bitmaps/BorderToolbarTop.png",
+          BMP_PRESENTERSCREEN_BORDER_TOOLBAR_TOP },
+        { "bitmaps/BorderToolbarTopLeft.png",
+          BMP_PRESENTERSCREEN_BORDER_TOOLBAR_TOP_LEFT },
+        { "bitmaps/BorderToolbarTopRight.png",
+          BMP_PRESENTERSCREEN_BORDER_TOOLBAR_TOP_RIGHT },
+        { "bitmaps/BorderTop.png", BMP_PRESENTERSCREEN_BORDER_TOP },
+        { "bitmaps/BorderTopLeft.png", BMP_PRESENTERSCREEN_BORDER_TOP_LEFT },
+        { "bitmaps/BorderTopRight.png", BMP_PRESENTERSCREEN_BORDER_TOP_RIGHT },
+        { "bitmaps/ButtonEffectNextDisabled.png",
+          BMP_PRESENTERSCREEN_BUTTON_EFFECT_NEXT_DISABLED },
+        { "bitmaps/ButtonEffectNextMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_EFFECT_NEXT_MOUSE_OVER },
+        { "bitmaps/ButtonEffectNextNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_EFFECT_NEXT_NORMAL },
+        { "bitmaps/ButtonEffectNextSelected.png",
+          BMP_PRESENTERSCREEN_BUTTON_EFFECT_NEXT_SELECTED },
+        { "bitmaps/ButtonFrameCenterMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_FRAME_CENTER_MOUSE_OVER },
+        { "bitmaps/ButtonFrameCenterNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_FRAME_CENTER_NORMAL },
+        { "bitmaps/ButtonFrameLeftMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_FRAME_LEFT_MOUSE_OVER },
+        { "bitmaps/ButtonFrameLeftNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_FRAME_LEFT_NORMAL },
+        { "bitmaps/ButtonFrameRightMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_FRAME_RIGHT_MOUSE_OVER },
+        { "bitmaps/ButtonFrameRightNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_FRAME_RIGHT_NORMAL },
+        { "bitmaps/ButtonHelpDisabled.png",
+          BMP_PRESENTERSCREEN_BUTTON_HELP_DISABLED },
+        { "bitmaps/ButtonHelpMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_HELP_MOUSE_OVER },
+        { "bitmaps/ButtonHelpNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_HELP_NORMAL },
+        { "bitmaps/ButtonHelpSelected.png",
+          BMP_PRESENTERSCREEN_BUTTON_HELP_SELECTED },
+        { "bitmaps/ButtonExitPresenterMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_EXIT_PRESENTER_MOUSE_OVER },
+        { "bitmaps/ButtonExitPresenterNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_EXIT_PRESENTER_NORMAL },
+        { "bitmaps/ButtonMinusDisabled.png",
+          BMP_PRESENTERSCREEN_BUTTON_MINUS_DISABLED },
+        { "bitmaps/ButtonMinusMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_MINUS_MOUSE_OVER },
+        { "bitmaps/ButtonMinusNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_MINUS_NORMAL },
+        { "bitmaps/ButtonMinusSelected.png",
+          BMP_PRESENTERSCREEN_BUTTON_MINUS_SELECTED },
+        { "bitmaps/ButtonNotesDisabled.png",
+          BMP_PRESENTERSCREEN_BUTTON_NOTES_DISABLED },
+        { "bitmaps/ButtonNotesMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_NOTES_MOUSE_OVER },
+        { "bitmaps/ButtonNotesNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_NOTES_NORMAL },
+        { "bitmaps/ButtonNotesSelected.png",
+          BMP_PRESENTERSCREEN_BUTTON_NOTES_SELECTED },
+        { "bitmaps/ButtonPlusDisabled.png",
+          BMP_PRESENTERSCREEN_BUTTON_PLUS_DISABLED },
+        { "bitmaps/ButtonPlusMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_PLUS_MOUSE_OVER },
+        { "bitmaps/ButtonPlusNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_PLUS_NORMAL },
+        { "bitmaps/ButtonPlusSelected.png",
+          BMP_PRESENTERSCREEN_BUTTON_PLUS_SELECTED },
+        { "bitmaps/ButtonSlideNextDisabled.png",
+          BMP_PRESENTERSCREEN_BUTTON_SLIDE_NEXT_DISABLED },
+        { "bitmaps/ButtonSlideNextMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_SLIDE_NEXT_MOUSE_OVER },
+        { "bitmaps/ButtonSlideNextNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_SLIDE_NEXT_NORMAL },
+        { "bitmaps/ButtonSlidePreviousDisabled.png",
+          BMP_PRESENTERSCREEN_BUTTON_SLIDE_PREVIOUS_DISABLED },
+        { "bitmaps/ButtonSlidePreviousMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_SLIDE_PREVIOUS_MOUSE_OVER },
+        { "bitmaps/ButtonSlidePreviousNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_SLIDE_PREVIOUS_NORMAL },
+        { "bitmaps/ButtonSlidePreviousSelected.png",
+          BMP_PRESENTERSCREEN_BUTTON_SLIDE_PREVIOUS_SELECTED },
+        { "bitmaps/ButtonSlideSorterDisabled.png",
+          BMP_PRESENTERSCREEN_BUTTON_SLIDE_SORTER_DISABLED },
+        { "bitmaps/ButtonSlideSorterMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_SLIDE_SORTER_MOUSE_OVER },
+        { "bitmaps/ButtonSlideSorterNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_SLIDE_SORTER_NORMAL },
+        { "bitmaps/ButtonSlideSorterSelected.png",
+          BMP_PRESENTERSCREEN_BUTTON_SLIDE_SORTER_SELECTED },
+        { "bitmaps/ButtonSwitchMonitorMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_SWITCH_MONITOR_MOUSE_OVER },
+        { "bitmaps/ButtonSwitchMonitorNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_SWITCH_MONITOR_NORMAL },
+        { "bitmaps/ButtonRestartTimerMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_RESTART_TIMER_MOUSE_OVER },
+        { "bitmaps/ButtonRestartTimerNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_RESTART_TIMER_NORMAL },
+        { "bitmaps/ButtonPauseTimerMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_PAUSE_TIMER_MOUSE_OVER },
+        { "bitmaps/ButtonPauseTimerNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_PAUSE_TIMER_NORMAL },
+        { "bitmaps/ButtonResumeTimerMouseOver.png",
+          BMP_PRESENTERSCREEN_BUTTON_RESUME_TIMER_MOUSE_OVER },
+        { "bitmaps/ButtonResumeTimerNormal.png",
+          BMP_PRESENTERSCREEN_BUTTON_RESUME_TIMER_NORMAL },
+        { "bitmaps/LabelMouseOverCenter.png",
+          BMP_PRESENTERSCREEN_LABEL_MOUSE_OVER_CENTER },
+        { "bitmaps/LabelMouseOverLeft.png",
+          BMP_PRESENTERSCREEN_LABEL_MOUSE_OVER_LEFT },
+        { "bitmaps/LabelMouseOverRight.png",
+          BMP_PRESENTERSCREEN_LABEL_MOUSE_OVER_RIGHT },
+        { "bitmaps/ScrollbarArrowDownDisabled.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_ARROW_DOWN_DISABLED },
+        { "bitmaps/ScrollbarArrowDownMouseOver.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_ARROW_DOWN_MOUSE_OVER },
+        { "bitmaps/ScrollbarArrowDownNormal.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_ARROW_DOWN_NORMAL },
+        { "bitmaps/ScrollbarArrowDownSelected.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_ARROW_DOWN_SELECTED },
+        { "bitmaps/ScrollbarArrowUpDisabled.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_ARROW_UP_DISABLED },
+        { "bitmaps/ScrollbarArrowUpMouseOver.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_ARROW_UP_MOUSE_OVER },
+        { "bitmaps/ScrollbarArrowUpNormal.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_ARROW_UP_NORMAL },
+        { "bitmaps/ScrollbarArrowUpSelected.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_ARROW_UP_SELECTED },
+        { "bitmaps/ScrollbarPagerMiddleMouseOver.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_PAGER_MIDDLE_MOUSE_OVER },
+        { "bitmaps/ScrollbarPagerMiddleNormal.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_PAGER_MIDDLE_NORMAL },
+        { "bitmaps/ScrollbarThumbBottomMouseOver.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_THUMB_BOTTOM_MOUSE_OVER },
+        { "bitmaps/ScrollbarThumbBottomNormal.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_THUMB_BOTTOM_NORMAL },
+        { "bitmaps/ScrollbarThumbMiddleMouseOver.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_THUMB_MIDDLE_MOUSE_OVER },
+        { "bitmaps/ScrollbarThumbMiddleNormal.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_THUMB_MIDDLE_NORMAL },
+        { "bitmaps/ScrollbarThumbTopMouseOver.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_THUMB_TOP_MOUSE_OVER },
+        { "bitmaps/ScrollbarThumbTopNormal.png",
+          BMP_PRESENTERSCREEN_SCROLLBAR_THUMB_TOP_NORMAL },
+        { "bitmaps/ViewBackground.png", BMP_PRESENTERSCREEN_VIEW_BACKGROUND },
+        { "bitmaps/Separator.png",
+          BMP_PRESENTERSCREEN_SEPARATOR }
+    };
+    OUString bmpid;
+    for (std::size_t i = 0; i != SAL_N_ELEMENTS(map); ++i) {
+        if (id.equalsAscii(map[i].sid)) {
+            bmpid = map[i].bmpid;
+            break;
+        }
+    }
+    if (bmpid.isEmpty()) {
+        return nullptr;
+    }
+
+    ::osl::MutexGuard aGuard (::osl::Mutex::getGlobalMutex());
+
+    const cppcanvas::CanvasSharedPtr pCanvas (
+        cppcanvas::VCLFactory::createCanvas(rxCanvas));
+
+    if (pCanvas)
+    {
+        BitmapEx aBitmapEx(bmpid);
+        cppcanvas::BitmapSharedPtr xBitmap(
+            cppcanvas::VCLFactory::createBitmap(pCanvas,
+                aBitmapEx));
+        if (!xBitmap)
+            return nullptr;
+        return xBitmap->getUNOBitmap();
+    }
+
+    return nullptr;
+}
+
+void SAL_CALL PresenterHelper::captureMouse (
+    const Reference<awt::XWindow>& rxWindow)
+{
+    ::osl::MutexGuard aGuard (::osl::Mutex::getGlobalMutex());
+
+    // Capture the mouse (if not already done.)
+    VclPtr<vcl::Window> pWindow = VCLUnoHelper::GetWindow(rxWindow);
+    if (pWindow && ! pWindow->IsMouseCaptured())
+    {
+        pWindow->CaptureMouse();
+    }
+}
+
+void SAL_CALL PresenterHelper::releaseMouse (const Reference<awt::XWindow>& rxWindow)
+{
+    ::osl::MutexGuard aGuard (::osl::Mutex::getGlobalMutex());
+
+    // Release the mouse (if not already done.)
+    VclPtr<vcl::Window> pWindow = VCLUnoHelper::GetWindow(rxWindow);
+    if (pWindow && pWindow->IsMouseCaptured())
+    {
+        pWindow->ReleaseMouse();
+    }
+}
+
+awt::Rectangle PresenterHelper::getWindowExtentsRelative (
+    const Reference<awt::XWindow>& rxChildWindow,
+    const Reference<awt::XWindow>& rxParentWindow)
+{
+    VclPtr<vcl::Window> pChildWindow = VCLUnoHelper::GetWindow(rxChildWindow);
+    VclPtr<vcl::Window> pParentWindow = VCLUnoHelper::GetWindow(rxParentWindow);
+    if (pChildWindow && pParentWindow)
+    {
+        ::tools::Rectangle aBox (pChildWindow->GetWindowExtentsRelative(pParentWindow));
+        return awt::Rectangle(aBox.Left(),aBox.Top(),aBox.GetWidth(),aBox.GetHeight());
+    }
+    else
+        return awt::Rectangle();
+}
+
+} // end of namespace ::sd::presenter
+
+
+extern "C" SAL_DLLPUBLIC_EXPORT css::uno::XInterface*
+com_sun_star_comp_Draw_PresenterHelper_get_implementation(css::uno::XComponentContext* context,
+                                                          css::uno::Sequence<css::uno::Any> const &)
+{
+    return cppu::acquire(new sd::presenter::PresenterHelper(context));
+}
+
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */