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Diffstat (limited to '')
-rw-r--r-- | sd/source/ui/slidesorter/inc/controller/SlsInsertionIndicatorHandler.hxx | 138 |
1 files changed, 138 insertions, 0 deletions
diff --git a/sd/source/ui/slidesorter/inc/controller/SlsInsertionIndicatorHandler.hxx b/sd/source/ui/slidesorter/inc/controller/SlsInsertionIndicatorHandler.hxx new file mode 100644 index 000000000..43f2d2f6a --- /dev/null +++ b/sd/source/ui/slidesorter/inc/controller/SlsInsertionIndicatorHandler.hxx @@ -0,0 +1,138 @@ +/* -*- 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 <controller/SlsAnimator.hxx> + +#include <view/SlsLayouter.hxx> + +namespace sd::slidesorter { class SlideSorter; } +namespace sd::slidesorter::view { +class InsertAnimator; +class InsertionIndicatorOverlay; +} + +class SdTransferable; + +namespace sd::slidesorter::controller { + +/** Manage the visibility and location of the insertion indicator. Its + actual display is controlled by the InsertionIndicatorOverlay. +*/ +class InsertionIndicatorHandler +{ +public: + InsertionIndicatorHandler (SlideSorter& rSlideSorter); + ~InsertionIndicatorHandler() COVERITY_NOEXCEPT_FALSE; + + enum Mode { CopyMode, MoveMode, UnknownMode }; + static Mode GetModeFromDndAction (const sal_Int8 nDndAction); + + /** Activate the insertion marker at the given coordinates. + */ + void Start (const bool bIsOverSourceView); + + /** Deactivate the insertion marker. + */ + void End (const controller::Animator::AnimationMode eMode); + + /** This context make sure that the insertion indicator is shown + (provided that the clipboard is not empty) while the context is + alive. Typically used while a context menu is displayed. + */ + class ForceShowContext + { + public: + ForceShowContext (const std::shared_ptr<InsertionIndicatorHandler>& rpHandler); + ~ForceShowContext() COVERITY_NOEXCEPT_FALSE; + private: + const std::shared_ptr<InsertionIndicatorHandler> mpHandler; + }; + + /** Update the indicator icon from the current transferable (from the + clipboard or an active drag and drop operation.) + */ + void UpdateIndicatorIcon (const SdTransferable* pTransferable); + + /** Set the position of the insertion marker to the given coordinates. + */ + void UpdatePosition ( + const Point& rMouseModelPosition, + const Mode eMode); + void UpdatePosition ( + const Point& rMouseModelPosition, + const sal_Int8 nDndAction); + + /** Return whether the insertion marker is active. + */ + bool IsActive() const { return mbIsActive;} + + /** Return the insertion index that corresponds with the current + graphical location of the insertion indicator. + */ + sal_Int32 GetInsertionPageIndex() const; + + /** Determine whether moving the current selection to the current + position of the insertion marker would alter the document. This + would be the case when the selection is not consecutive or would be + moved to a position outside and not adjacent to the selection. + */ + bool IsInsertionTrivial ( + const sal_Int32 nInsertionIndex, + const Mode eMode) const; + /** This method is like the other variant. It operates implicitly + on the current insertion index as would be returned by + GetInsertionPageIndex(). + */ + bool IsInsertionTrivial (const sal_Int8 nDndAction); + +private: + SlideSorter& mrSlideSorter; + std::shared_ptr<view::InsertAnimator> mpInsertAnimator; + std::shared_ptr<view::InsertionIndicatorOverlay> mpInsertionIndicatorOverlay; + view::InsertPosition maInsertPosition; + Mode meMode; + bool mbIsInsertionTrivial; + bool mbIsActive; + bool mbIsReadOnly; + bool mbIsOverSourceView; + Size maIconSize; + bool mbIsForcedShow; + + void SetPosition ( + const Point& rPoint, + const Mode eMode); + std::shared_ptr<view::InsertAnimator> const & GetInsertAnimator(); + + /** Make the insertion indicator visible (that is the show part) and + keep it visible, even when the mouse leaves the window (that is the + force part). We need this when a context menu is displayed (mouse + over the popup menu triggers a mouse leave event) while the + insertion indicator remains visible in the background. + + In effect all calls to End() are ignored until ForceEnd() is called. + */ + void ForceShow(); + void ForceEnd(); +}; + +} // end of namespace ::sd::slidesorter::controller + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |