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| -rw-r--r-- | include/svx/svddrgv.hxx | 230 |
1 files changed, 230 insertions, 0 deletions
diff --git a/include/svx/svddrgv.hxx b/include/svx/svddrgv.hxx new file mode 100644 index 000000000..c88cf0b30 --- /dev/null +++ b/include/svx/svddrgv.hxx @@ -0,0 +1,230 @@ +/* -*- 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; + + 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 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: */ |