sd/source/ui/slidesorter/controller/SlsDragAndDropContext.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include "SlsDragAndDropContext.hxx"
  21
  22 #include "SlideSorter.hxx"
  23 #include "model/SlideSorterModel.hxx"
  24 #include "model/SlsPageEnumerationProvider.hxx"
  25 #include "view/SlideSorterView.hxx"
  26 #include "controller/SlideSorterController.hxx"
  27 #include "controller/SlsInsertionIndicatorHandler.hxx"
  28 #include "controller/SlsScrollBarManager.hxx"
  29 #include "controller/SlsProperties.hxx"
  30 #include "controller/SlsSelectionFunction.hxx"
  31 #include "controller/SlsSelectionManager.hxx"
  32 #include "controller/SlsClipboard.hxx"
  33 #include "controller/SlsTransferableData.hxx"
  34 #include "DrawDocShell.hxx"
  35 #include "drawdoc.hxx"
  36 #include "app.hrc"
  37 #include "sdtreelb.hxx"
  38 #include <sfx2/bindings.hxx>
  39 #include <boost/bind.hpp>
  40
  41 namespace sd { namespace slidesorter { namespace controller {
  42
  43 DragAndDropContext::DragAndDropContext (SlideSorter& rSlideSorter)
  44     : mpTargetSlideSorter(&rSlideSorter),
  45       mnInsertionIndex(-1)
  46 {
  47     // No Drag-and-Drop for master pages.
  48     if (rSlideSorter.GetModel().GetEditMode() != EM_PAGE)
  49         return;
  50
  51     // For poperly handling transferables created by the navigator we
  52     // need additional information.  For this a user data object is
  53     // created that contains the necessary information.
  54     SdTransferable* pTransferable = SD_MOD()->pTransferDrag;
  55     SdPageObjsTLB::SdPageObjsTransferable* pTreeListBoxTransferable
  56         = dynamic_cast<SdPageObjsTLB::SdPageObjsTransferable*>(pTransferable);
  57     if (pTreeListBoxTransferable!=NULL && !TransferableData::GetFromTransferable(pTransferable))
  58     {
  59         pTransferable->AddUserData(
  60             sd::slidesorter::controller::Clipboard::CreateTransferableUserData(pTransferable));
  61     }
  62
  63     rSlideSorter.GetController().GetInsertionIndicatorHandler()->UpdateIndicatorIcon(pTransferable);
  64 }
  65
  66 DragAndDropContext::~DragAndDropContext()
  67 {
  68     SetTargetSlideSorter (NULL, Point(0,0), InsertionIndicatorHandler::UnknownMode, false);
  69 }
  70
  71 void DragAndDropContext::Dispose()
  72 {
  73     mnInsertionIndex = -1;
  74 }
  75
  76 void DragAndDropContext::UpdatePosition (
  77     const Point& rMousePosition,
  78     const InsertionIndicatorHandler::Mode eMode,
  79     const bool bAllowAutoScroll)
  80 {
  81     if (mpTargetSlideSorter == NULL)
  82         return;
  83
  84     if (mpTargetSlideSorter->GetProperties()->IsUIReadOnly())
  85         return;
  86
  87     // Convert window coordinates into model coordinates (we need the
  88     // window coordinates for auto-scrolling because that remains
  89     // constant while scrolling.)
  90     sd::Window *pWindow (mpTargetSlideSorter->GetContentWindow());
  91     const Point aMouseModelPosition (pWindow->PixelToLogic(rMousePosition));
  92     ::boost::shared_ptr<InsertionIndicatorHandler> pInsertionIndicatorHandler (
  93         mpTargetSlideSorter->GetController().GetInsertionIndicatorHandler());
  94
  95     bool bDoAutoScroll = bAllowAutoScroll
  96             && mpTargetSlideSorter->GetController().GetScrollBarManager().AutoScroll(
  97                 rMousePosition,
  98                 ::boost::bind(
  99                     &DragAndDropContext::UpdatePosition, this, rMousePosition, eMode, false));
 100
 101     if (!bDoAutoScroll)
 102     {
 103         pInsertionIndicatorHandler->UpdatePosition(aMouseModelPosition, eMode);
 104
 105         // Remember the new insertion index.
 106         mnInsertionIndex = pInsertionIndicatorHandler->GetInsertionPageIndex();
 107         if (pInsertionIndicatorHandler->IsInsertionTrivial(mnInsertionIndex, eMode))
 108             mnInsertionIndex = -1;
 109     }
 110 }
 111
 112 void DragAndDropContext::SetTargetSlideSorter (
 113     SlideSorter* pSlideSorter,
 114     const Point& rMousePosition,
 115     const InsertionIndicatorHandler::Mode eMode,
 116     const bool bIsOverSourceView)
 117 {
 118     if (mpTargetSlideSorter != NULL)
 119     {
 120         mpTargetSlideSorter->GetController().GetScrollBarManager().StopAutoScroll();
 121         mpTargetSlideSorter->GetController().GetInsertionIndicatorHandler()->End(
 122             Animator::AM_Animated);
 123     }
 124
 125     mpTargetSlideSorter = pSlideSorter;
 126
 127     if (mpTargetSlideSorter != NULL)
 128     {
 129         mpTargetSlideSorter->GetController().GetInsertionIndicatorHandler()->Start(
 130             bIsOverSourceView);
 131         mpTargetSlideSorter->GetController().GetInsertionIndicatorHandler()->UpdatePosition(
 132             rMousePosition,
 133             eMode);
 134
 135     }
 136 }
 137
 138 } } } // end of namespace ::sd::slidesorter::controller
 139
 140 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */