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/* -*- 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 .
*/
#ifndef INCLUDED_SVX_SVDDRGV_HXX
#define INCLUDED_SVX_SVDDRGV_HXX
#include <svx/svxdllapi.h>
#include <svx/svdxcgv.hxx>
#include <memory>
class SdrUndoGeoObj;
class SVXCORE_DLLPUBLIC SdrDragView : public SdrExchangeView
{
friend class SdrPageView;
friend class SdrDragMethod;
// See GetDragXorPolyLimit/GetDragXorPointLimit
enum : size_t {
eDragXorPolyLimit = 100,
eDragXorPointLimit = 500
};
protected:
SdrHdl* mpDragHdl;
std::unique_ptr<SdrDragMethod> mpCurrentSdrDragMethod;
SdrUndoGeoObj* mpInsPointUndo;
tools::Rectangle maDragLimit;
OUString maInsPointUndoStr;
SdrHdlKind meDragHdl;
sal_Int32 mnDragThresholdPixels;
bool mbFramDrag : 1; // currently frame dragging
bool mbMarkedHitMovesAlways : 1; // Persistent
bool mbDragLimit : 1; // Limit on SnapRect instead of BoundRect
bool mbDragHdl : 1; // TRUE: RefPt is slid
bool mbDragStripes : 1; // Persistent
bool mbSolidDragging : 1; // allow solid create/drag of objects
bool mbResizeAtCenter : 1;
bool mbCrookAtCenter : 1;
bool mbDragWithCopy : 1;
bool mbInsGluePoint : 1;
bool mbInsObjPointMode : 1;
bool mbInsGluePointMode : 1;
bool mbNoDragXorPolys : 1;
protected:
virtual void SetMarkHandles(SfxViewShell* pOtherShell) override;
void ShowDragObj();
void HideDragObj();
bool ImpBegInsObjPoint(bool bIdxZwang, const Point& rPnt, bool bNewObj, OutputDevice* pOut);
protected:
// #i71538# make constructors of SdrView sub-components protected to avoid incomplete incarnations which may get casted to SdrView
SdrDragView(
SdrModel& rSdrModel,
OutputDevice* pOut);
virtual ~SdrDragView() override;
public:
virtual bool IsAction() const override;
virtual void MovAction(const Point& rPnt) override;
virtual void EndAction() override;
virtual void BckAction() override;
virtual void BrkAction() override;
virtual void TakeActionRect(tools::Rectangle& rRect) const override;
// special implementation for Writer:
// TakeDragObjAnchorPos() returns the position at which an object
// approximately ends up during dragging when it is "released"
// (EndDrag).
// As a general rule, this is the left upper corner of the expected
// new SnapRect. Exception: CaptionObj. There, it is the position
// of the "tail end".
// In case of return value 'false', the position could not be
// determined (e.g. point shift, multiple selection, shift of the
// mirror axis,...)
bool TakeDragObjAnchorPos(Point& rPos, bool bTopRight ) const;
// If pForcedMeth is passed, then pHdl, ... is not evaluated, but this Drag
// method is used. In this, the ownership of the instance passes
// to the View and is destroyed at the end of the dragging.
virtual bool BegDragObj(const Point& rPnt, OutputDevice* pOut, SdrHdl* pHdl, short nMinMov=-3, SdrDragMethod* pForcedMeth=nullptr);
void MovDragObj(const Point& rPnt);
bool EndDragObj(bool bCopy=false);
void BrkDragObj();
bool IsDragObj() const { return mpCurrentSdrDragMethod && !mbInsPolyPoint && !mbInsGluePoint; }
SdrHdl* GetDragHdl() const { return mpDragHdl; }
SdrDragMethod* GetDragMethod() const { return mpCurrentSdrDragMethod.get(); }
bool IsDraggingPoints() const { return meDragHdl==SdrHdlKind::Poly; }
bool IsDraggingGluePoints() const { return meDragHdl==SdrHdlKind::Glue; }
// If you want to define that already during BegDrag
// or in the middle.
// (Is reset to 'false' on each BegDrag, so set it after BegDrag.)
void SetDragWithCopy(bool bOn) { mbDragWithCopy = bOn; }
bool IsDragWithCopy() const { return mbDragWithCopy; }
void SetDragThresholdPixels(sal_Int32 nDragThresholdPixels) { mnDragThresholdPixels = nDragThresholdPixels; }
sal_Int32 GetDragThresholdPixels() const { return mnDragThresholdPixels; }
void SetInsertGluePoint(bool bOn) { mbInsGluePoint = bOn; }
bool IsInsertGluePoint() const { return mbInsGluePoint; }
// Interactive insertion of a new point. nIdx=0 => in front of the first point
bool IsInsObjPointPossible() const;
bool BegInsObjPoint(const Point& rPnt, bool bNewObj) { return ImpBegInsObjPoint(false, rPnt, bNewObj, nullptr); }
void MovInsObjPoint(const Point& rPnt) { MovDragObj(rPnt); }
bool EndInsObjPoint(SdrCreateCmd eCmd);
bool IsInsObjPoint() const { return mpCurrentSdrDragMethod && mbInsPolyPoint; }
// For the app to manage the status. GetPreferredPointer() is
// possibly going to deliver a matching pointer for it.
void SetInsObjPointMode(bool bOn) { mbInsObjPointMode = bOn; }
bool IsInsObjPointMode() const { return mbInsObjPointMode; }
bool IsInsGluePointPossible() const;
bool BegInsGluePoint(const Point& rPnt);
bool IsInsGluePoint() const { return mpCurrentSdrDragMethod && mbInsGluePoint; }
// For the app to manage the status. GetPreferredPointer() is
// possibly going to deliver a matching pointer for it.
void SetInsGluePointMode(bool bOn) { mbInsGluePointMode = bOn; }
bool IsInsGluePointMode() const { return mbInsGluePointMode; }
// border lines over the whole win persistent during the
// whole dragging. Default=FALSE.
void SetDragStripes(bool bOn);
bool IsDragStripes() const { return mbDragStripes; }
// As a general rule, the contours of the selected objects
// are displayed as Xor-polygons. If this flag is set, only one
// Xor-Frame is drawn (e.g. in case of multiple selection).
// In case of object-specific dragging (polygon points, corner radius,...),
// this setting has no influence.
// Also changeable during the dragging.
// Default=Off
void SetNoDragXorPolys(bool bOn);
bool IsNoDragXorPolys() const { return mbNoDragXorPolys; }
// If the number of selected objects exceeds the value set here,
// NoDragPolys is (temporarily) activated implicitly.
// PolyPolygons etc. are regarded as multiple objects respectively.
static size_t GetDragXorPolyLimit() { return eDragXorPolyLimit; }
// Like DragXorPolyLimit, but in respect to the total number of
// all polygons.
// NoDragPolys is (temporarily) activated, if one of the limits
// is exceeded.
static size_t GetDragXorPointLimit() { return eDragXorPointLimit; }
void SetSolidDragging(bool bOn);
bool IsSolidDragging() const;
// Connector handling is thus as follows (when using default settings):
// - If at most 10 Connectors are affected, they are recalculated
// on each MouseMove.
// - If 11 to 100 Connectors are affected, the connections
// are shown as straight lines while dragging.
// - In case of more than 100 affected Connectors, nothing that refers
// to the Connectors is drawn while dragging.
// If a special drag mode like Rotate, Mirror or Crook is enabled,
// then a Hit on the selected object triggers exactly this dragging.
// If MarkedHitMovesAlways is set to 'true', a Hit on the selected
// object always triggers a Move, independent of the DragMode that is
// set. This flag is persistent and should be configurable in the app
// by the user!
void SetMarkedHitMovesAlways(bool bOn) { mbMarkedHitMovesAlways = bOn; }
bool IsMarkedHitMovesAlways() const { return mbMarkedHitMovesAlways; }
bool IsOrthoDesired() const;
// center as reference on Resize
// Default=FALSE.
bool IsResizeAtCenter() const { return mbResizeAtCenter; }
void SetResizeAtCenter(bool bOn) { mbResizeAtCenter = bOn; }
// symmetric Crook
// Default=FALSE.
bool IsCrookAtCenter() const { return mbCrookAtCenter; }
void SetCrookAtCenter(bool bOn) { mbCrookAtCenter = bOn; }
// Limitation of the working area. The limitation refers to the View,
// not to the single PageViews. This limitation is only evaluated by
// the View on interactions like Dragging and Create.
// In case of actions controlled by the app through algorithms or
// UI-controlled actions (SetGeoAttr, MoveMarkedObj, ...), the
// app must honor this limit itself.
// Furthermore, this limit is to be seen as a rough limit. In certain
// cases (e.g. while rotating), objects cannot be dragged exactly
// up to this limit, objects can overlap a bit because of rounding
// errors,...
// Default=EmptyRect=no limitation
// only partially implemented
void SetWorkArea(const tools::Rectangle& rRect) { maMaxWorkArea=rRect; }
const tools::Rectangle& GetWorkArea() const { return maMaxWorkArea; }
// The DragLimit refers to the Page of the object.
// (TODO or to the View?? - must be researched...)
// 'false' = no limit
// The return Rect must contain absolute coordinates. The maximum
// drag area is then selected by the View in a way that the object's
// SnapRect is moved or resized at most up to the corner of the
// LimitRect. For objects like Bezier curves, rotated rectangles,
// it must be taken into account that because of subsequent
// recalculation of the SnapRect (on Resize), rounding errors can
// occur, because of which the LimitRect might be exceeded by a
// very small extent...
// Implemented for Move and Resize
virtual bool TakeDragLimit(SdrDragMode eMode, tools::Rectangle& rRect) const;
};
#endif // INCLUDED_SVX_SVDDRGV_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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