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, 239 insertions, 0 deletions

diff --git a/sd/source/ui/inc/OutlinerIteratorImpl.hxx b/sd/source/ui/inc/OutlinerIteratorImpl.hxx
new file mode 100644
index 000000000..00be547c0
--- /dev/null
+++ b/sd/source/ui/inc/OutlinerIteratorImpl.hxx
@@ -0,0 +1,239 @@
+/* -*- 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 .
+ */
+
+#pragma once
+
+#include <OutlinerIterator.hxx>
+#include <memory>
+
+class SdDrawDocument;
+class SdPage;
+class SdrObjListIter;
+
+namespace sd {
+
+class ViewShell;
+
+namespace outliner {
+
+/** Base class for the polymorphic implementation class of the
+    <type>Iterator</type> class.  The iterators based on this class are
+    basically uni directional iterators.  Their direction can, however, be
+    reversed at any point of their life time.
+*/
+class IteratorImplBase
+{
+public:
+    /** The constructor stores the given arguments to be used by the derived
+        classes.
+        @param pDocument
+            The document provides the information to be iterated on.
+        @param pViewShellWeak
+            Some information has to be taken from the view shell.
+        @param bDirectionIsForward
+            This flag defines the iteration direction.  When <TRUE/> then
+            the direction is forwards otherwise it is backwards.
+    */
+    IteratorImplBase (SdDrawDocument* pDocument,
+        const std::weak_ptr<ViewShell>& rpViewShellWeak,
+        bool bDirectionIsForward);
+    IteratorImplBase (SdDrawDocument* pDocument,
+        const std::weak_ptr<ViewShell>& rpViewShellWeak,
+        bool bDirectionIsForward, PageKind ePageKind, EditMode eEditMode);
+    virtual ~IteratorImplBase();
+
+    /** Advance to the next text of the current object or to the next object.
+        This takes the iteration direction into
+        account.  The new object pointed to can be retrieved (among other
+        information) by calling the <member>GetPosition</member> method.
+    */
+    virtual void GotoNextText() = 0;
+    /** Return an object that describes the current object.
+        @return
+            The returned object describes the current object pointed to by
+            the iterator.  See the description of
+            <type>IteratorPosition</type> for details on the available
+            information.
+    */
+    virtual const IteratorPosition& GetPosition();
+    /** Create an exact copy of this object.  No argument should be
+        specified when called from the outside.  It then creates an object
+        first and passes that to the inherited <member>Clone()</member>
+        methods to fill in class specific information.
+        @return
+            Returns a copy of this object.  When this method is called with
+            an argument then this value will be returned.
+    */
+    virtual IteratorImplBase* Clone (IteratorImplBase* pObject=nullptr) const;
+    /** Test the equality of the this object and the given iterator.  Two
+        iterators are taken to be equal when they point to the same object.
+        Iteration direction is not taken into account.
+        @param rIterator
+            The iterator to compare to.
+        @return
+            When both iterators are equal <TRUE/> is returned, <FALSE/> otherwise.
+    */
+    virtual bool operator== (const IteratorImplBase& rIterator) const;
+    /** This method is used by the equality operator. It is part of a "multimethod" pattern.
+        @param rIterator
+            The iterator to compare to.
+        @return
+            Returns <TRUE/> when both iterators point to the same object.
+    */
+    virtual bool IsEqualSelection(const IteratorImplBase& rIterator) const;
+    /** Reverse the direction of iteration.  The current object stays the same.
+    */
+    virtual void Reverse();
+
+protected:
+    /// The current position as returned by <member>GetPosition()</member>.
+    IteratorPosition maPosition;
+    /// The document on whose data the iterator operates.
+    SdDrawDocument* mpDocument;
+    /// Necessary secondary source of information.
+    std::weak_ptr<ViewShell> mpViewShellWeak;
+    /// Specifies the search direction.
+    bool mbDirectionIsForward;
+};
+
+/** Iterator all objects that belong to the current mark list
+    a.k.a. selection.  It is assumed that all marked objects belong to the
+    same page.  It is further assumed that the mark list does not change
+    while an iterator is alive.  It is therefore the responsibility of an
+    iterator's owner to handle the case of a changed mark list.
+
+    <p>For documentation of the methods please refer to the base class
+    <type>IteratorImplBase</type>.</p>
+*/
+class SelectionIteratorImpl
+    : public IteratorImplBase
+{
+public:
+    SelectionIteratorImpl (
+        const ::std::vector< ::tools::WeakReference<SdrObject> >& rObjectList,
+        sal_Int32 nObjectIndex,
+        SdDrawDocument* pDocument,
+        const std::weak_ptr<ViewShell>& rpViewShellWeak,
+        bool bDirectionIsForward);
+    SelectionIteratorImpl (const SelectionIteratorImpl& rObject);
+    virtual ~SelectionIteratorImpl() override;
+
+    virtual void GotoNextText() override;
+    virtual const IteratorPosition& GetPosition() override;
+    virtual IteratorImplBase* Clone (IteratorImplBase* pObject = nullptr) const override;
+    virtual bool operator== (const IteratorImplBase& rIterator) const override;
+
+private:
+    const ::std::vector<::tools::WeakReference<SdrObject>>& mrObjectList;
+    sal_Int32 mnObjectIndex;
+
+    /** Compare the given iterator with this object.  This method handles
+        only the case that the given iterator is an instance of this class.
+        @param rIterator
+            The iterator to compare to.
+        @return
+            Returns <TRUE/> when both iterators point to the same object.
+    */
+    virtual bool IsEqualSelection(const IteratorImplBase& rIterator) const override;
+
+    IteratorImplBase& operator= (const IteratorImplBase& rIterator);
+};
+
+/** Iterator for iteration over all objects in a single view.  On reaching
+    the last object on the last page (or the first object on the first page)
+    the view is *not* switched.  Further calls to the
+    <member>GotoNextObject()</member> method will be ignored.
+
+    <p>For documentation of the methods please refer to the base class
+    <type>IteratorImplBase</type>.</p>
+*/
+class ViewIteratorImpl : public IteratorImplBase
+{
+public:
+    ViewIteratorImpl (
+        sal_Int32 nPageIndex,
+        SdDrawDocument* pDocument,
+        const std::weak_ptr<ViewShell>& rpViewShellWeak,
+        bool bDirectionIsForward);
+    ViewIteratorImpl (
+        sal_Int32 nPageIndex,
+        SdDrawDocument* pDocument,
+        const std::weak_ptr<ViewShell>& rpViewShellWeak,
+        bool bDirectionIsForward,
+        PageKind ePageKind,
+        EditMode eEditMode);
+    virtual ~ViewIteratorImpl() override;
+
+    virtual void GotoNextText() override;
+    virtual IteratorImplBase* Clone (IteratorImplBase* pObject = nullptr) const override;
+    virtual void Reverse() override;
+
+protected:
+    /** Set up page pointer and object list iterator for the specified
+        page.
+        @param nPageIndex
+            Index of the new page.  It may lie outside the valid range for
+            page indices.
+    */
+    void SetPage (sal_Int32 nPageIndex);
+
+private:
+    /// Indicates whether a page changed occurred on switching to current page.
+    bool mbPageChangeOccurred;
+    /// Pointer to the page associated with the current page index. May be NULL.
+    SdPage* mpPage;
+    /// Iterator of all objects on the current page.
+    std::unique_ptr<SdrObjListIter> mpObjectIterator;
+
+    // Don't use this operator.
+    ViewIteratorImpl& operator= (const ViewIteratorImpl&) = delete;
+};
+
+/** Iterator for iteration over all objects in all views.  It automatically
+    switches views when reaching the end/beginning of a view.
+
+    <p>For documentation of the methods please refer to the base class
+    <type>IteratorImplBase</type>.</p>
+*/
+class DocumentIteratorImpl : public ViewIteratorImpl
+{
+public:
+    DocumentIteratorImpl (
+        sal_Int32 nPageIndex,
+        PageKind ePageKind,
+        EditMode eEditMode,
+        SdDrawDocument* pDocument,
+        const std::weak_ptr<ViewShell>& rpViewShellWeak,
+        bool bDirectionIsForward);
+    virtual ~DocumentIteratorImpl() override;
+
+    virtual void GotoNextText() override;
+    virtual IteratorImplBase* Clone (IteratorImplBase* pObject = nullptr) const override;
+
+private:
+    /// Number of pages in the view that is specified by <member>maPosition</member>.
+    sal_Int32 mnPageCount;
+
+    // Don't use this operator.
+    DocumentIteratorImpl& operator= (const DocumentIteratorImpl& ) = delete;
+};
+
+} } // end of namespace ::sd::outliner
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */