office-gobmx/include/svx/svddrgmt.hxx
Sahil Gautam 86cd603627 tdf#159543 - Proper feedback needed when resizing a frame...
When autosize (a frame property) is enabled, then the (text) frame
manages it's height/width based on the content such that all the text
is visible. The user cannot decrease the height/width to be less than
the content height/width, but the resize  handles show up, and clicking and
dragging is enabled, which shows a blue virtual resize frame.

This patch adds UI feedback mechanism such that if the drag leads
to some change in any dimention of the original frame, then the
frame color will remain blue, otherwise it turns red.

Change-Id: Id4b3e3ae2c9864154e6028ca03008261bbc3e1b8
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/165817
Tested-by: Jenkins
Reviewed-by: Heiko Tietze <heiko.tietze@documentfoundation.org>
2024-06-19 15:38:27 +02:00

304 lines
12 KiB
C++

/* -*- 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_SVDDRGMT_HXX
#define INCLUDED_SVX_SVDDRGMT_HXX
#include <svx/svddrgv.hxx>
#include <svx/svxdllapi.h>
#include <svx/sdr/contact/objectcontact.hxx>
#include <memory>
class SdrDragView;
class SdrDragStat;
class SAL_DLLPUBLIC_RTTI SdrDragEntry
{
private:
bool mbAddToTransparent : 1;
protected:
// access for derived classes
void setAddToTransparent(bool bNew) { mbAddToTransparent = bNew; }
public:
SdrDragEntry();
virtual ~SdrDragEntry();
virtual drawinglayer::primitive2d::Primitive2DContainer createPrimitive2DSequenceInCurrentState(SdrDragMethod& rDragMethod, bool IsDragSizeValid=true) = 0;
// data read access
bool getAddToTransparent() const { return mbAddToTransparent; }
};
class SVXCORE_DLLPUBLIC SdrDragEntryPolyPolygon final : public SdrDragEntry
{
private:
basegfx::B2DPolyPolygon maOriginalPolyPolygon;
public:
SdrDragEntryPolyPolygon(basegfx::B2DPolyPolygon aOriginalPolyPolygon);
virtual ~SdrDragEntryPolyPolygon() override;
virtual drawinglayer::primitive2d::Primitive2DContainer createPrimitive2DSequenceInCurrentState(SdrDragMethod& rDragMethod, bool IsDragSizeValid=true) override;
};
class SdrDragEntrySdrObject final : public SdrDragEntry
{
private:
const SdrObject& maOriginal;
rtl::Reference<SdrObject> mxClone;
bool mbModify;
public:
SdrDragEntrySdrObject(
const SdrObject& rOriginal,
bool bModify);
virtual ~SdrDragEntrySdrObject() override;
// #i54102# Split createPrimitive2DSequenceInCurrentState in prepareCurrentState and processing,
// added accessors to original and clone
void prepareCurrentState(SdrDragMethod& rDragMethod);
const SdrObject& getOriginal() const { return maOriginal; }
SdrObject* getClone() { return mxClone.get(); }
virtual drawinglayer::primitive2d::Primitive2DContainer createPrimitive2DSequenceInCurrentState(SdrDragMethod& rDragMethod, bool IsDragSizeValid=true) override;
};
class SdrDragEntryPrimitive2DSequence final : public SdrDragEntry
{
private:
drawinglayer::primitive2d::Primitive2DContainer maPrimitive2DSequence;
public:
SdrDragEntryPrimitive2DSequence(drawinglayer::primitive2d::Primitive2DContainer&& rSequence);
virtual ~SdrDragEntryPrimitive2DSequence() override;
virtual drawinglayer::primitive2d::Primitive2DContainer createPrimitive2DSequenceInCurrentState(SdrDragMethod& rDragMethod, bool IsDragSizeValid=true) override;
};
class SdrDragEntryPointGlueDrag final : public SdrDragEntry
{
private:
std::vector< basegfx::B2DPoint > maPositions;
bool mbIsPointDrag;
public:
SdrDragEntryPointGlueDrag(std::vector< basegfx::B2DPoint >&& rPositions, bool bIsPointDrag);
virtual ~SdrDragEntryPointGlueDrag() override;
virtual drawinglayer::primitive2d::Primitive2DContainer createPrimitive2DSequenceInCurrentState(SdrDragMethod& rDragMethod, bool IsDragSizeValid=true) override;
};
class SVXCORE_DLLPUBLIC SdrDragMethod
{
private:
std::vector< std::unique_ptr<SdrDragEntry> > maSdrDragEntries;
sdr::overlay::OverlayObjectList maOverlayObjectList;
SdrDragView& mrSdrDragView;
bool mbMoveOnly : 1;
bool mbSolidDraggingActive : 1;
bool mbShiftPressed : 1;
protected:
// access for derivated classes to maSdrDragEntries
SAL_DLLPRIVATE void clearSdrDragEntries();
void addSdrDragEntry(std::unique_ptr<SdrDragEntry> pNew);
virtual void createSdrDragEntries();
virtual void createSdrDragEntryForSdrObject(const SdrObject& rOriginal);
// Helper to support inserting a new OverlayObject. It will do all
// necessary stuff involved with that:
// - add GridOffset for non-linear ViewToDevice transformation (calc)
// - add to OverlayManager
// - add to local OverlayObjectList - ownership change (!)
// It is centralized here (and protected) to avoid that new usages/
// implementations forget one of these needed steps.
void insertNewlyCreatedOverlayObjectForSdrDragMethod(
std::unique_ptr<sdr::overlay::OverlayObject> pOverlayObject,
const sdr::contact::ObjectContact& rObjectContact,
sdr::overlay::OverlayManager& rOverlayManager);
// access for derivated classes to mrSdrDragView
SdrDragView& getSdrDragView() { return mrSdrDragView; }
const SdrDragView& getSdrDragView() const { return mrSdrDragView; }
// access for derivated classes for bools
void setMoveOnly(bool bNew) { mbMoveOnly = bNew; }
void setSolidDraggingActive(bool bNew) { mbSolidDraggingActive = bNew; }
// internal helpers for creation of standard drag entries
SAL_DLLPRIVATE void createSdrDragEntries_SolidDrag();
SAL_DLLPRIVATE void createSdrDragEntries_PolygonDrag();
SAL_DLLPRIVATE void createSdrDragEntries_PointDrag();
SAL_DLLPRIVATE void createSdrDragEntries_GlueDrag();
// old call forwarders to the SdrDragView
SAL_DLLPRIVATE OUString ImpGetDescriptionStr(TranslateId pStrCacheID) const;
SdrHdl* GetDragHdl() const { return getSdrDragView().mpDragHdl; }
SdrHdlKind GetDragHdlKind() const { return getSdrDragView().meDragHdl; }
SdrDragStat& DragStat() { return getSdrDragView().maDragStat; }
const SdrDragStat& DragStat() const { return getSdrDragView().maDragStat; }
Point& Ref1() const { return mrSdrDragView.maRef1; }
Point& Ref2() const { return mrSdrDragView.maRef2; }
const SdrHdlList& GetHdlList() const { return getSdrDragView().GetHdlList(); }
void AddUndo(std::unique_ptr<SdrUndoAction> pUndo) { getSdrDragView().AddUndo(std::move(pUndo)); }
bool IsDragLimit() { return getSdrDragView().mbDragLimit; }
const tools::Rectangle& GetDragLimitRect() { return getSdrDragView().maDragLimit; }
const SdrMarkList& GetMarkedObjectList() { return getSdrDragView().GetMarkedObjectList(); }
Point GetSnapPos(const Point& rPt) const { return getSdrDragView().GetSnapPos(rPt,getSdrDragView().mpMarkedPV); }
SdrSnap SnapPos(Point& rPt) const { return getSdrDragView().SnapPos(rPt,getSdrDragView().mpMarkedPV); }
inline const tools::Rectangle& GetMarkedRect() const;
SAL_DLLPRIVATE SdrPageView* GetDragPV() const;
SdrObject* GetDragObj() const;
bool IsDraggingPoints() const { return getSdrDragView().IsDraggingPoints(); }
bool IsDraggingGluePoints() const { return getSdrDragView().IsDraggingGluePoints(); }
SAL_DLLPRIVATE bool DoAddConnectorOverlays();
SAL_DLLPRIVATE drawinglayer::primitive2d::Primitive2DContainer AddConnectorOverlays();
public:
SAL_DLLPRIVATE void resetSdrDragEntries();
SAL_DLLPRIVATE basegfx::B2DRange getCurrentRange() const;
// #i58950# also moved constructor implementation to cxx
SdrDragMethod(SdrDragView& rNewView);
// #i58950# virtual destructor was missing
virtual ~SdrDragMethod();
void Show(bool IsValidSize=true);
void Hide();
bool IsShiftPressed() const { return mbShiftPressed; }
void SetShiftPressed(bool bShiftPressed) { mbShiftPressed = bShiftPressed; }
virtual OUString GetSdrDragComment() const=0;
virtual bool BeginSdrDrag()=0;
virtual void MoveSdrDrag(const Point& rPnt)=0;
virtual bool EndSdrDrag(bool bCopy)=0;
virtual void CancelSdrDrag();
virtual PointerStyle GetSdrDragPointer() const=0;
virtual void CreateOverlayGeometry(
sdr::overlay::OverlayManager& rOverlayManager,
const sdr::contact::ObjectContact& rObjectContact, bool bIsGeometrySizeValid=true);
SAL_DLLPRIVATE void destroyOverlayGeometry();
virtual basegfx::B2DHomMatrix getCurrentTransformation() const;
virtual void applyCurrentTransformationToSdrObject(SdrObject& rTarget);
virtual void applyCurrentTransformationToPolyPolygon(basegfx::B2DPolyPolygon& rTarget);
// data read access
bool getMoveOnly() const { return mbMoveOnly; }
bool getSolidDraggingActive() const { return mbSolidDraggingActive; }
};
inline const tools::Rectangle& SdrDragMethod::GetMarkedRect() const
{
return getSdrDragView().meDragHdl==SdrHdlKind::Poly ? getSdrDragView().GetMarkedPointsRect() :
getSdrDragView().meDragHdl==SdrHdlKind::Glue ? getSdrDragView().GetMarkedGluePointsRect() :
getSdrDragView().GetMarkedObjRect();
}
// SdrDragMove
class SVXCORE_DLLPUBLIC SdrDragMove : public SdrDragMethod
{
private:
tools::Long nBestXSnap;
tools::Long nBestYSnap;
bool bXSnapped;
bool bYSnapped;
void ImpCheckSnap(const Point& rPt);
protected:
virtual void createSdrDragEntryForSdrObject(const SdrObject& rOriginal) override;
public:
SdrDragMove(SdrDragView& rNewView);
virtual OUString GetSdrDragComment() const override;
virtual bool BeginSdrDrag() override;
virtual void MoveSdrDrag(const Point& rPnt) override;
virtual bool EndSdrDrag(bool bCopy) override;
virtual PointerStyle GetSdrDragPointer() const override;
virtual basegfx::B2DHomMatrix getCurrentTransformation() const override;
virtual void applyCurrentTransformationToSdrObject(SdrObject& rTarget) override;
};
// SdrDragResize
class SVXCORE_DLLPUBLIC SdrDragResize : public SdrDragMethod
{
protected:
Fraction aXFact;
Fraction aYFact;
public:
SdrDragResize(SdrDragView& rNewView);
virtual OUString GetSdrDragComment() const override;
virtual bool BeginSdrDrag() override;
virtual void MoveSdrDrag(const Point& rPnt) override;
virtual bool EndSdrDrag(bool bCopy) override;
virtual PointerStyle GetSdrDragPointer() const override;
virtual basegfx::B2DHomMatrix getCurrentTransformation() const override;
virtual void applyCurrentTransformationToSdrObject(SdrObject& rTarget) override;
};
// SdrDragObjOwn
class SVXCORE_DLLPUBLIC SdrDragObjOwn : public SdrDragMethod
{
private:
// SdrDragObjOwn always works on a clone since it has no transformation
// mechanism to modify wireframe visualisations, but uses the
// SdrObject::applySpecialDrag() method to change a clone of the
// SdrObject
rtl::Reference<SdrObject> mxClone;
protected:
virtual void createSdrDragEntries() override;
public:
SdrDragObjOwn(SdrDragView& rNewView);
virtual ~SdrDragObjOwn() override;
virtual OUString GetSdrDragComment() const override;
virtual bool BeginSdrDrag() override;
virtual void MoveSdrDrag(const Point& rPnt) override;
virtual bool EndSdrDrag(bool bCopy) override;
virtual PointerStyle GetSdrDragPointer() const override;
};
#endif // INCLUDED_SVX_SVDDRGMT_HXX
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */