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| -rw-r--r-- | include/svx/svdsnpv.hxx | 287 |
1 files changed, 287 insertions, 0 deletions
diff --git a/include/svx/svdsnpv.hxx b/include/svx/svdsnpv.hxx new file mode 100644 index 000000000..1fd8fce3b --- /dev/null +++ b/include/svx/svdsnpv.hxx @@ -0,0 +1,287 @@ +/* -*- 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 <svx/svdpntv.hxx> +#include <svx/svdhlpln.hxx> +#include <svx/svxdllapi.h> +#include <tools/degree.hxx> +#include <o3tl/typed_flags_set.hxx> + +/** + * Definition: + * - snap something means e.g. the mouse pointer or some marked objects in drag can be snapped + * - snap on something means you can e.g. snap on the grid or on auxiliary lines + * + * + * Basically, we only catch visible elements (borders, helper lines, connectors), + * with the exception of the grid. Likewise, we can only catch visible elements (i.e. connectors). + * We only catch on the grid, if nothing else is close by (magnetic behaviour). + * + * The cursor which is used during creation of objects, while dragging polygon points + * etc. (i.e. the mouse cursor) is always caught on all enabled catch alternatives (max 6). + * + * This is different, when moving selected objects. Instead of one mouse cursor, there are + * four alternatives, which can be caught at the selected objects: + * 1. the logically enclosing frame of every single object + * 2. the logically enclosing frame of all selected objects + * 3. highlighted points of all selected objects (polygon points, ...) + * 4. the connectors of the selected objects + * + * As the first and second case exclude each other (the second is a refinement of the first one) + * three alternatives remain, which are independent from each other. For 6 possible values for the + * caught ones, we would end up with max. 18 different possible combinations! + * + * Therefore, we introduce the following simplifications: + * 1. Connectors only catch on connectors + * + * Only max. 2*5+1 = 11 combinations remain for MoveDrag: + * 1-3. enclosing frame on grid/border/helper lines + * 4. enclosing frame on highlighted object points + * 5. enclosing frame on enclosing frame + * 6-8. highlighted points on grid/border/helper lines + * 7. highlighted points on highlighted object points + * 8-10. highlighted points on enclosing frame + * 11. connectors on connectors + * + * We test for all of these possible 11 combinations in the MouseMove event in the DragMove + * and those with the least need of correction are carried out. + * + * In the Resize() etc. methods we only catch the logically enclosing frame of the highlighted objects. + */ + +/** Return value for SnapPos() method */ +enum class SdrSnap +{ + NOTSNAPPED = 0x00, + XSNAPPED = 0x01, + YSNAPPED = 0x02 +}; +namespace o3tl +{ + template<> struct typed_flags<SdrSnap> : is_typed_flags<SdrSnap, 3> {}; +} + +// TODO SdrCrookMode::Stretch is not implemented yet! +enum class SdrCrookMode { + Rotate, + Slant, + Stretch +}; + + +// #114409#-1 Migrate PageOrigin +class ImplPageOriginOverlay; + +class SVXCORE_DLLPUBLIC SdrSnapView : public SdrPaintView +{ +protected: + // #114409#-1 Migrate PageOrigin + class ImplPageOriginOverlay* mpPageOriginOverlay; + + // #114409#-2 Migrate HelpLine + class ImplHelpLineOverlay* mpHelpLineOverlay; + + Size aMagnSiz; + Fraction aSnapWdtX; + Fraction aSnapWdtY; + + sal_uInt16 nMagnSizPix; + Degree100 nSnapAngle; + Degree100 nEliminatePolyPointLimitAngle; + + SdrCrookMode eCrookMode; + + bool bSnapEnab : 1; + bool bGridSnap : 1; + bool bBordSnap : 1; + bool bHlplSnap : 1; + bool bOFrmSnap : 1; + bool bOPntSnap : 1; + bool bOConSnap : 1; + bool bMoveSnapOnlyTopLeft : 1; // Special for dialogeditor + bool bOrtho : 1; + bool bBigOrtho : 1; + bool bAngleSnapEnab : 1; + bool bMoveOnlyDragging : 1; // only move objects while Resize/Rotate/... + bool bSlantButShear : 1; // use slant instead of shear + bool bCrookNoContortion : 1; // no contorsion while Crook + bool bEliminatePolyPoints : 1; + +protected: + // #i71538# make constructors of SdrView sub-components protected to avoid incomplete incarnations which may get casted to SdrView + SdrSnapView( + SdrModel& rSdrModel, + OutputDevice* pOut); + + virtual ~SdrSnapView() 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; // break actions for derived classes e.g. interrupt dragging. + virtual void TakeActionRect(tools::Rectangle& rRect) const override; + + void SetSnapGridWidth(const Fraction& rX, const Fraction& rY) { aSnapWdtX=rX; aSnapWdtY=rY; } + const Fraction& GetSnapGridWidthX() const { return aSnapWdtX; } + const Fraction& GetSnapGridWidthY() const { return aSnapWdtY; } + + void SetSnapMagnetic(const Size& rSiz) { if (rSiz!=aMagnSiz) { aMagnSiz=rSiz; } } + void SetSnapMagneticPixel(sal_uInt16 nPix) { nMagnSizPix=nPix; } + sal_uInt16 GetSnapMagneticPixel() const { return nMagnSizPix; } + + // RecalcLogicSnapMagnetic has to be called for every change of OutputDevices and every change of the MapMode! + void RecalcLogicSnapMagnetic(const OutputDevice& rOut) { SetSnapMagnetic(rOut.PixelToLogic(Size(nMagnSizPix,nMagnSizPix))); } + void SetActualWin(const OutputDevice* pWin) { SdrPaintView::SetActualWin(pWin); if (pWin!=nullptr) RecalcLogicSnapMagnetic(*pWin); } + + // Coordinates referred to the view! + // Returnvalues are SdrSnap::NOTSNAPPED,SdrSnap::XSNAPPED, + // SdrSnap::YSNAPPED or SdrSnap::XYSNAPPED + SdrSnap SnapPos(Point& rPnt, const SdrPageView* pPV) const; + Point GetSnapPos(const Point& rPnt, const SdrPageView* pPV) const; + void CheckSnap(const Point& rPt, tools::Long& nBestXSnap, tools::Long& nBestYSnap, bool& bXSnapped, bool& bYSnapped) const; + + // All attitudes to snap are persistent. + bool IsSnapEnabled() const { return bSnapEnab; } + bool IsGridSnap() const { return bGridSnap; } // Snap to grid + bool IsBordSnap() const { return bBordSnap; } // Snap to border + bool IsHlplSnap() const { return bHlplSnap; } // Snap to auxiliary line + bool IsOFrmSnap() const { return bOFrmSnap; } // Snap to LogFram from surrounding drawing objects + bool IsOPntSnap() const { return bOPntSnap; } // Snap to distinct points from surrounding drawing objects + bool IsOConSnap() const { return bOConSnap; } // Snap to connectors of the drawing objects + void SetSnapEnabled(bool bOn) { bSnapEnab=bOn; } + void SetGridSnap(bool bOn) { bGridSnap=bOn; } + void SetBordSnap(bool bOn) { bBordSnap=bOn; } + void SetHlplSnap(bool bOn) { bHlplSnap=bOn; } + void SetOFrmSnap(bool bOn) { bOFrmSnap=bOn; } + void SetOPntSnap(bool bOn) { bOPntSnap=bOn; } + void SetOConSnap(bool bOn) { bOConSnap=bOn; } + + // Usually every 4 corners of Object-SnapRects are snapped for Move-Dragging. + // The following attitudes e.g. if you only want to snap the left corner on the top (e.g. DialogEditor) + // persistent, Default=FALSE. + void SetMoveSnapOnlyTopLeft(bool bOn) { bMoveSnapOnlyTopLeft=bOn; } + bool IsMoveSnapOnlyTopLeft() const { return bMoveSnapOnlyTopLeft; } + + // #114409#-1 Migrate PageOrigin + void BegSetPageOrg(const Point& rPnt); + void MovSetPageOrg(const Point& rPnt); + void EndSetPageOrg(); + void BrkSetPageOrg(); + bool IsSetPageOrg() const { return (nullptr != mpPageOriginOverlay); } + + // HitTest. If sal_True, in rnHelpLineNum is the number of the auxiliary line and in rpPv + // the appended PageView. + bool PickHelpLine(const Point& rPnt, short nTol, const OutputDevice& rOut, sal_uInt16& rnHelpLineNum, SdrPageView*& rpPV) const; + + // Move of an available auxiliary line. Use nHelpLineNum and pPV from PickHelpLine. + bool BegDragHelpLine(sal_uInt16 nHelpLineNum, SdrPageView* pPV); + // interactive insertion of a new auxiliary line + void BegDragHelpLine(const Point& rPnt, SdrHelpLineKind eNewKind); + PointerStyle GetDraggedHelpLinePointer() const; + + // change the type of auxiliary line while dragging + // void SetDraggedHelpLineKind(SdrHelpLineKind eNewKind); + void MovDragHelpLine(const Point& rPnt); + bool EndDragHelpLine(); + void BrkDragHelpLine(); + bool IsDragHelpLine() const { return (nullptr != mpHelpLineOverlay); } + + // SnapAngle is for angles in circle, RotateDragging, ... + // The snapping of an angle is beared down, if it is switched off + // with SetAngleSnapEnabled(sal_False) + // The snapping angles is independent of snapping coordinates + // and so independent of the attitude IsSnapEnabled() + // Only values should be specified for them is applied: + // 36000 modulo nAngle = 0 + // Implemented for: + // - Rotate (Dragging) + // - Shear (Dragging) + // - circular arc/-sector/-section angle (Create and Dragging) + // persistent. + void SetAngleSnapEnabled(bool bOn) { bAngleSnapEnab=bOn; } + bool IsAngleSnapEnabled() const { return bAngleSnapEnab; } + void SetSnapAngle(Degree100 nAngle) { nSnapAngle=nAngle; } + Degree100 GetSnapAngle() const { return nSnapAngle; } + + // different effects from Ortho (depending on the context): + // - Create + // - only lines in 45deg grid + // - instead of rectangles squares are created + // - instead of ellipse circles are created + // - Dragging + // - general Dragging + // - Move only horizontal, vertical or 45deg + // - Resize proportional + // - Mirror: nothing + // - Shear without Resize + // - Crook without Resize + // - move handles + // - mirror axis only 45deg grid + // - object-specific Dragging + // - rectangle corner radius: nothing + // - circle object angle: nothing + // - line keeps while Dragging the angle and is only stretched/ contracted + // Default value for Ortho is off. persistent. + void SetOrtho(bool bOn) { bOrtho=bOn; } // incomplete + bool IsOrtho() const { return bOrtho; } + + // BigOrtho is only relevant if Ortho is switched on. + // Example: rectangle is created and ortho is switched on (--> square) + // and the Mouse was dragged from zero to the coordinates + // (80,30). Now there are 2 alternatives to determine the edge length + // of the square: 30 and 80. + // The standard Ortho-Function took 30 (every time the smaller length) + // If BigOrtho is switched on, you get a square with edge length of 80. + // The same also applies to Resize. + // Default value for BigOrtho is on. persistent. + void SetBigOrtho(bool bOn) { bBigOrtho=bOn; } + bool IsBigOrtho() const { return bBigOrtho; } + + // If MoveOnlyDragging=sal_True only the center of the marked objects is + // transformed when Resize/Rotate/Shear/Mirror/Crook is executed. + // Size, form and rotation angle of the objects are conserved only their positions + // are changed. persistent. Default=FALSE. (ni) + void SetMoveOnlyDragging(bool bOn) { bMoveOnlyDragging=bOn; } + bool IsMoveOnlyDragging() const { return bMoveOnlyDragging; } + + // Use Slant instead of Shear. persistent. Default=FALSE. + void SetSlantButShear(bool bOn) { bSlantButShear=bOn; } + bool IsSlantButShear() const { return bSlantButShear; } + + // Don't contort objecte while Crook. persistent. Default=FALSE. (ni) + void SetCrookNoContortion(bool bOn) { bCrookNoContortion=bOn; } + bool IsCrookNoContortion() const { return bCrookNoContortion; } + + // Crook-Mode. persistent. Default=SdrCrookMode::Rotate. (ni) + void SetCrookMode(SdrCrookMode eMode) { eCrookMode=eMode; } + SdrCrookMode GetCrookMode() const { return eCrookMode; } + + // Special for IBM: While Dragging of a traverse station, it is deleted + // if its adjacent lines are almost a solid line. + void SetEliminatePolyPoints(bool bOn) { bEliminatePolyPoints=bOn; } + bool IsEliminatePolyPoints() const { return bEliminatePolyPoints; } + void SetEliminatePolyPointLimitAngle(Degree100 nAngle) { nEliminatePolyPointLimitAngle=nAngle; } + Degree100 GetEliminatePolyPointLimitAngle() const { return nEliminatePolyPointLimitAngle; } +}; + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |