1 files changed, 327 insertions, 0 deletions
diff --git a/sd/source/ui/slidesorter/controller/SlsInsertionIndicatorHandler.cxx b/sd/source/ui/slidesorter/controller/SlsInsertionIndicatorHandler.cxx
new file mode 100644
index 000000000000..882adab932a8
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+++ b/sd/source/ui/slidesorter/controller/SlsInsertionIndicatorHandler.cxx
@@ -0,0 +1,327 @@
+/*************************************************************************
+ *
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * Copyright 2000, 2010 Oracle and/or its affiliates.
+ *
+ * OpenOffice.org - a multi-platform office productivity suite
+ *
+ * This file is part of OpenOffice.org.
+ *
+ * OpenOffice.org is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 3
+ * only, as published by the Free Software Foundation.
+ *
+ * OpenOffice.org 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 Lesser General Public License version 3 for more details
+ * (a copy is included in the LICENSE file that accompanied this code).
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * version 3 along with OpenOffice.org.  If not, see
+ * <http://www.openoffice.org/license.html>
+ * for a copy of the LGPLv3 License.
+ *
+ ************************************************************************/
+
+#include "precompiled_sd.hxx"
+
+#include "controller/SlsInsertionIndicatorHandler.hxx"
+#include "controller/SlsProperties.hxx"
+#include "view/SlideSorterView.hxx"
+#include "view/SlsLayouter.hxx"
+#include "view/SlsInsertionIndicatorOverlay.hxx"
+#include "model/SlideSorterModel.hxx"
+#include "model/SlsPageEnumerationProvider.hxx"
+#include <com/sun/star/datatransfer/dnd/DNDConstants.hpp>
+
+#include "SlideSorter.hxx"
+
+using namespace ::com::sun::star::datatransfer::dnd::DNDConstants;
+
+namespace sd { namespace slidesorter { namespace controller {
+
+
+InsertionIndicatorHandler::InsertionIndicatorHandler (SlideSorter& rSlideSorter)
+    : mrSlideSorter(rSlideSorter),
+      mpInsertAnimator(),
+      mpInsertionIndicatorOverlay(new view::InsertionIndicatorOverlay(rSlideSorter)),
+      maInsertPosition(),
+      meMode(MoveMode),
+      mbIsActive(false),
+      mbIsReadOnly(mrSlideSorter.GetModel().IsReadOnly()),
+      mbIsOverSourceView(true),
+      maIconSize(0,0),
+      mbIsForcedShow(false)
+{
+}
+
+
+
+
+InsertionIndicatorHandler::~InsertionIndicatorHandler (void)
+{
+}
+
+
+
+
+void InsertionIndicatorHandler::Start (const bool bIsOverSourceView)
+{
+    if (mbIsActive)
+    {
+        OSL_ASSERT(!mbIsActive);
+    }
+
+    mbIsReadOnly = mrSlideSorter.GetModel().IsReadOnly();
+    if (mbIsReadOnly)
+        return;
+
+    mbIsActive = true;
+    mbIsOverSourceView = bIsOverSourceView;
+}
+
+
+
+
+void InsertionIndicatorHandler::End (const controller::Animator::AnimationMode eMode)
+{
+    if (mbIsForcedShow ||  ! mbIsActive || mbIsReadOnly)
+        return;
+
+    GetInsertAnimator()->Reset(eMode);
+
+    mbIsActive = false;
+    //    maInsertPosition = view::InsertPosition();
+    meMode = UnknownMode;
+
+    mpInsertionIndicatorOverlay->Hide();
+    mpInsertionIndicatorOverlay.reset(new view::InsertionIndicatorOverlay(mrSlideSorter));
+}
+
+
+
+
+void InsertionIndicatorHandler::ForceShow (void)
+{
+    mbIsForcedShow = true;
+}
+
+
+
+
+void InsertionIndicatorHandler::ForceEnd (void)
+{
+    mbIsForcedShow = false;
+    End(Animator::AM_Immediate);
+}
+
+
+
+
+void InsertionIndicatorHandler::UpdateIndicatorIcon (const Transferable* pTransferable)
+{
+    mpInsertionIndicatorOverlay->Create(pTransferable);
+    maIconSize = mpInsertionIndicatorOverlay->GetSize();
+}
+
+
+
+
+InsertionIndicatorHandler::Mode InsertionIndicatorHandler::GetModeFromDndAction (
+    const sal_Int8 nDndAction)
+{
+    if ((nDndAction & ACTION_MOVE) != 0)
+        return MoveMode;
+    else if ((nDndAction & ACTION_COPY) != 0)
+        return CopyMode;
+    else
+        return UnknownMode;
+}
+
+
+
+
+void InsertionIndicatorHandler::UpdatePosition (
+    const Point& rMouseModelPosition,
+    const Mode eMode)
+{
+    if ( ! mbIsActive)
+        return;
+
+    if (mbIsReadOnly)
+        return;
+
+    SetPosition(rMouseModelPosition, eMode);
+}
+
+
+
+
+void InsertionIndicatorHandler::UpdatePosition (
+    const Point& rMouseModelPosition,
+    const sal_Int8 nDndAction)
+{
+    UpdatePosition(rMouseModelPosition, GetModeFromDndAction(nDndAction));
+}
+
+
+
+
+bool InsertionIndicatorHandler::IsActive (void) const
+{
+    return mbIsActive;
+}
+
+
+
+
+sal_Int32 InsertionIndicatorHandler::GetInsertionPageIndex (void) const
+{
+    if (mbIsReadOnly)
+        return -1;
+    else
+        return maInsertPosition.GetIndex();
+}
+
+
+
+
+void InsertionIndicatorHandler::SetPosition (
+    const Point& rPoint,
+    const Mode eMode)
+{
+    view::Layouter& rLayouter (mrSlideSorter.GetView().GetLayouter());
+
+    const view::InsertPosition aInsertPosition (rLayouter.GetInsertPosition(
+        rPoint,
+        maIconSize,
+        mrSlideSorter.GetModel()));
+
+    static sal_Int32 TargetIndex (1);
+    if (aInsertPosition.GetIndex() == TargetIndex)
+    {
+        const view::InsertPosition aPosition (rLayouter.GetInsertPosition(
+            rPoint,
+            maIconSize,
+            mrSlideSorter.GetModel()));
+        const view::InsertPosition aPosition2 (rLayouter.GetInsertPosition(
+            rPoint,
+            maIconSize,
+            mrSlideSorter.GetModel()));
+    }
+
+    if (maInsertPosition != aInsertPosition
+        || meMode != eMode
+        //        || ! mpInsertionIndicatorOverlay->IsVisible()
+        )
+    {
+        maInsertPosition = aInsertPosition;
+        meMode = eMode;
+        mbIsInsertionTrivial = IsInsertionTrivial(maInsertPosition.GetIndex(), eMode);
+        if (maInsertPosition.GetIndex()>=0 && ! mbIsInsertionTrivial)
+        {
+            mpInsertionIndicatorOverlay->SetLocation(maInsertPosition.GetLocation());
+
+            GetInsertAnimator()->SetInsertPosition(maInsertPosition);
+            mpInsertionIndicatorOverlay->Show();
+        }
+        else
+        {
+            GetInsertAnimator()->Reset(Animator::AM_Animated);
+            mpInsertionIndicatorOverlay->Hide();
+        }
+    }
+}
+
+
+
+
+::boost::shared_ptr<view::InsertAnimator> InsertionIndicatorHandler::GetInsertAnimator (void)
+{
+    if ( ! mpInsertAnimator)
+        mpInsertAnimator.reset(new view::InsertAnimator(mrSlideSorter));
+    return mpInsertAnimator;
+}
+
+
+
+
+bool InsertionIndicatorHandler::IsInsertionTrivial (
+    const sal_Int32 nInsertionIndex,
+    const Mode eMode) const
+{
+    if (eMode == CopyMode)
+        return false;
+    else if (eMode == UnknownMode)
+        return true;
+
+    if ( ! mbIsOverSourceView)
+        return false;
+
+    // Iterate over all selected pages and check whether there are
+    // holes.  While we do this we remember the indices of the first and
+    // last selected page as preparation for the next step.
+    sal_Int32 nCurrentIndex = -1;
+    sal_Int32 nFirstIndex = -1;
+    sal_Int32 nLastIndex = -1;
+    model::PageEnumeration aSelectedPages (
+        model::PageEnumerationProvider::CreateSelectedPagesEnumeration(
+            mrSlideSorter.GetModel()));
+    while (aSelectedPages.HasMoreElements())
+    {
+        model::SharedPageDescriptor pDescriptor (aSelectedPages.GetNextElement());
+
+        // Get the page number and compare it to the last one.
+        const sal_Int32 nPageNumber (pDescriptor->GetPageIndex());
+        if (nCurrentIndex>=0 && nPageNumber>(nCurrentIndex+1))
+            return false;
+        else
+            nCurrentIndex = nPageNumber;
+
+        // Remember indices of the first and last page of the selection.
+        if (nFirstIndex == -1)
+            nFirstIndex = nPageNumber;
+        nLastIndex = nPageNumber;
+    }
+
+    // When we come here then the selection has no holes.  We still have
+    // to check that the insertion position is not directly in front or
+    // directly behind the selection and thus moving the selection there
+    // would not change the model.
+    if (nInsertionIndex<nFirstIndex || nInsertionIndex>(nLastIndex+1))
+        return false;
+
+    return true;
+}
+
+
+
+
+bool InsertionIndicatorHandler::IsInsertionTrivial (const sal_Int8 nDndAction)
+{
+    return IsInsertionTrivial(GetInsertionPageIndex(), GetModeFromDndAction(nDndAction));
+}
+
+
+
+
+//===== InsertionIndicatorHandler::ForceShowContext ===========================
+
+InsertionIndicatorHandler::ForceShowContext::ForceShowContext (
+    const ::boost::shared_ptr<InsertionIndicatorHandler>& rpHandler)
+    : mpHandler(rpHandler)
+{
+    mpHandler->ForceShow();
+}
+
+
+
+
+InsertionIndicatorHandler::ForceShowContext::~ForceShowContext (void)
+{
+    mpHandler->ForceEnd();
+}
+
+} } } // end of namespace ::sd::slidesorter::controller