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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 .
*/
#include <svl/itempool.hxx>
#include <vcl/dialog.hxx>
#include <vcl/wrkwin.hxx>
#include <vcl/settings.hxx>
#include <vcl/builderfactory.hxx>
#include <unotools/syslocale.hxx>
#include <rtl/math.hxx>
#include <unotools/localedatawrapper.hxx>
#include <comphelper/processfactory.hxx>
#include <vcl/svapp.hxx>
#include <osl/mutex.hxx>
#include <svx/graphctl.hxx>
#include "GraphCtlAccessibleContext.hxx"
#include "svx/xoutbmp.hxx"
#include <svx/svxids.hrc>
#include <svx/svdpage.hxx>
#include "svx/sdrpaintwindow.hxx"
void GraphCtrlUserCall::Changed( const SdrObject& rObj, SdrUserCallType eType, const Rectangle& /*rOldBoundRect*/ )
{
switch( eType )
{
case SdrUserCallType::MoveOnly:
case SdrUserCallType::Resize:
rWin.SdrObjChanged( rObj );
break;
case SdrUserCallType::Inserted:
rWin.SdrObjCreated( rObj );
break;
default:
break;
}
rWin.QueueIdleUpdate();
}
GraphCtrl::GraphCtrl( vcl::Window* pParent, WinBits nStyle ) :
Control ( pParent, nStyle ),
aUpdateIdle ( "svx GraphCtrl Update" ),
aMap100 ( MapUnit::Map100thMM ),
nWinStyle ( 0 ),
eObjKind ( OBJ_NONE ),
nPolyEdit ( 0 ),
bEditMode ( false ),
bSdrMode ( false ),
bAnim ( false ),
mbInIdleUpdate ( false ),
pModel ( nullptr ),
pView ( nullptr )
{
pUserCall = new GraphCtrlUserCall( *this );
aUpdateIdle.SetPriority( SchedulerPriority::LOWEST );
aUpdateIdle.SetIdleHdl( LINK( this, GraphCtrl, UpdateHdl ) );
aUpdateIdle.Start();
EnableRTL( false );
}
VCL_BUILDER_FACTORY_CONSTRUCTOR(GraphCtrl, 0)
GraphCtrl::~GraphCtrl()
{
disposeOnce();
}
void GraphCtrl::dispose()
{
aUpdateIdle.Stop();
if( mpAccContext.is() )
{
mpAccContext->disposing();
mpAccContext.clear();
}
delete pView;
pView = nullptr;
delete pModel;
pModel = nullptr;
delete pUserCall;
pUserCall = nullptr;
Control::dispose();
}
void GraphCtrl::SetWinStyle( WinBits nWinBits )
{
nWinStyle = nWinBits;
bAnim = ( nWinStyle & WB_ANIMATION ) == WB_ANIMATION;
bSdrMode = ( nWinStyle & WB_SDRMODE ) == WB_SDRMODE;
const StyleSettings& rStyleSettings = Application::GetSettings().GetStyleSettings();
SetBackground( Wallpaper( rStyleSettings.GetWindowColor() ) );
SetMapMode( aMap100 );
delete pView;
pView = nullptr;
delete pModel;
pModel = nullptr;
if ( bSdrMode )
InitSdrModel();
QueueIdleUpdate();
}
void GraphCtrl::InitSdrModel()
{
SolarMutexGuard aGuard;
SdrPage* pPage;
// destroy old junk
delete pView;
delete pModel;
// Creating a Model
pModel = new SdrModel;
pModel->GetItemPool().FreezeIdRanges();
pModel->SetScaleUnit( aMap100.GetMapUnit() );
pModel->SetScaleFraction( Fraction( 1, 1 ) );
pModel->SetDefaultFontHeight( 500 );
pPage = new SdrPage( *pModel );
pPage->SetSize( aGraphSize );
pPage->SetBorder( 0, 0, 0, 0 );
pModel->InsertPage( pPage );
pModel->SetChanged( false );
// Creating a View
pView = new GraphCtrlView( pModel, this );
pView->SetWorkArea( Rectangle( Point(), aGraphSize ) );
pView->EnableExtendedMouseEventDispatcher( true );
pView->ShowSdrPage(pView->GetModel()->GetPage(0));
pView->SetFrameDragSingles();
pView->SetMarkedPointsSmooth( SdrPathSmoothKind::Symmetric );
pView->SetEditMode();
// #i72889# set needed flags
pView->SetPagePaintingAllowed(false);
pView->SetBufferedOutputAllowed(true);
pView->SetBufferedOverlayAllowed(true);
// Tell the accessibility object about the changes.
if (mpAccContext.is())
mpAccContext->setModelAndView (pModel, pView);
}
void GraphCtrl::SetGraphic( const Graphic& rGraphic, bool bNewModel )
{
// If possible we dither bitmaps for the display
if ( !bAnim && ( rGraphic.GetType() == GraphicType::Bitmap ) )
{
if ( rGraphic.IsTransparent() )
{
Bitmap aBmp( rGraphic.GetBitmap() );
DitherBitmap( aBmp );
aGraphic = Graphic( BitmapEx( aBmp, rGraphic.GetBitmapEx().GetMask() ) );
}
else
{
Bitmap aBmp( rGraphic.GetBitmap() );
DitherBitmap( aBmp );
aGraphic = aBmp;
}
}
else
aGraphic = rGraphic;
if ( aGraphic.GetPrefMapMode().GetMapUnit() == MapUnit::MapPixel )
aGraphSize = Application::GetDefaultDevice()->PixelToLogic( aGraphic.GetPrefSize(), aMap100 );
else
aGraphSize = OutputDevice::LogicToLogic( aGraphic.GetPrefSize(), aGraphic.GetPrefMapMode(), aMap100 );
if ( bSdrMode && bNewModel )
InitSdrModel();
aGraphSizeLink.Call( this );
Resize();
Invalidate();
QueueIdleUpdate();
}
void GraphCtrl::Resize()
{
Control::Resize();
if ( aGraphSize.Width() && aGraphSize.Height() )
{
MapMode aDisplayMap( aMap100 );
Point aNewPos;
Size aNewSize;
const Size aWinSize = PixelToLogic( GetOutputSizePixel(), aDisplayMap );
const long nWidth = aWinSize.Width();
const long nHeight = aWinSize.Height();
double fGrfWH = (double) aGraphSize.Width() / aGraphSize.Height();
double fWinWH = (double) nWidth / nHeight;
// Adapt Bitmap to Thumb size
if ( fGrfWH < fWinWH)
{
aNewSize.Width() = (long) ( (double) nHeight * fGrfWH );
aNewSize.Height()= nHeight;
}
else
{
aNewSize.Width() = nWidth;
aNewSize.Height()= (long) ( (double) nWidth / fGrfWH );
}
aNewPos.X() = ( nWidth - aNewSize.Width() ) >> 1;
aNewPos.Y() = ( nHeight - aNewSize.Height() ) >> 1;
// Implementing MapMode for Engine
aDisplayMap.SetScaleX( Fraction( aNewSize.Width(), aGraphSize.Width() ) );
aDisplayMap.SetScaleY( Fraction( aNewSize.Height(), aGraphSize.Height() ) );
aDisplayMap.SetOrigin( LogicToLogic( aNewPos, aMap100, aDisplayMap ) );
SetMapMode( aDisplayMap );
}
Invalidate();
}
void GraphCtrl::Paint( vcl::RenderContext& rRenderContext, const Rectangle& rRect)
{
// #i72889# used splitted repaint to be able to paint an own background
// even to the buffered view
const bool bGraphicValid(GraphicType::NONE != aGraphic.GetType());
if (bSdrMode)
{
SdrPaintWindow* pPaintWindow = pView->BeginCompleteRedraw(&rRenderContext);
if (bGraphicValid)
{
vcl::RenderContext& rTarget = pPaintWindow->GetTargetOutputDevice();
rTarget.SetBackground(GetBackground());
rTarget.Erase();
aGraphic.Draw(&rTarget, Point(), aGraphSize);
}
const vcl::Region aRepaintRegion(rRect);
pView->DoCompleteRedraw(*pPaintWindow, aRepaintRegion);
pView->EndCompleteRedraw(*pPaintWindow, true);
}
else
{
// #i73381# in non-SdrMode, paint to local directly
if(bGraphicValid)
{
aGraphic.Draw(&rRenderContext, Point(), aGraphSize);
}
}
}
void GraphCtrl::SdrObjChanged( const SdrObject& )
{
QueueIdleUpdate();
}
void GraphCtrl::SdrObjCreated( const SdrObject& )
{
QueueIdleUpdate();
}
void GraphCtrl::MarkListHasChanged()
{
QueueIdleUpdate();
}
void GraphCtrl::KeyInput( const KeyEvent& rKEvt )
{
vcl::KeyCode aCode( rKEvt.GetKeyCode() );
bool bProc = false;
Dialog* pDialog = GetParentDialog();
switch ( aCode.GetCode() )
{
case KEY_DELETE:
case KEY_BACKSPACE:
{
if ( bSdrMode )
{
pView->DeleteMarked();
bProc = true;
if (!pView->AreObjectsMarked() && pDialog)
pDialog->GrabFocusToFirstControl();
}
}
break;
case KEY_ESCAPE:
{
if ( bSdrMode )
{
bool bGrabFocusToFirstControl = true;
if ( pView->IsAction() )
{
pView->BrkAction();
bGrabFocusToFirstControl = false;
}
else if ( pView->AreObjectsMarked() )
{
const SdrHdlList& rHdlList = pView->GetHdlList();
SdrHdl* pHdl = rHdlList.GetFocusHdl();
if(pHdl)
{
((SdrHdlList&)rHdlList).ResetFocusHdl();
bGrabFocusToFirstControl = false;
}
}
if (bGrabFocusToFirstControl && pDialog)
pDialog->GrabFocusToFirstControl();
bProc = true;
}
}
break;
case KEY_F11:
case KEY_TAB:
{
if( bSdrMode )
{
if( !aCode.IsMod1() && !aCode.IsMod2() )
{
bool bForward = !aCode.IsShift();
// select next object
if ( ! pView->MarkNextObj( bForward ))
{
// At first or last object. Cycle to the other end
// of the list.
pView->UnmarkAllObj();
pView->MarkNextObj (bForward);
}
bProc = true;
}
else if(aCode.IsMod1())
{
// select next handle
const SdrHdlList& rHdlList = pView->GetHdlList();
bool bForward(!aCode.IsShift());
((SdrHdlList&)rHdlList).TravelFocusHdl(bForward);
bProc = true;
}
}
}
break;
case KEY_END:
{
if ( aCode.IsMod1() )
{
// mark last object
pView->UnmarkAllObj();
pView->MarkNextObj();
bProc = true;
}
}
break;
case KEY_HOME:
{
if ( aCode.IsMod1() )
{
pView->UnmarkAllObj();
pView->MarkNextObj(true);
bProc = true;
}
}
break;
case KEY_UP:
case KEY_DOWN:
case KEY_LEFT:
case KEY_RIGHT:
{
long nX = 0;
long nY = 0;
if (aCode.GetCode() == KEY_UP)
{
// Scroll up
nX = 0;
nY =-1;
}
else if (aCode.GetCode() == KEY_DOWN)
{
// Scroll down
nX = 0;
nY = 1;
}
else if (aCode.GetCode() == KEY_LEFT)
{
// Scroll left
nX =-1;
nY = 0;
}
else if (aCode.GetCode() == KEY_RIGHT)
{
// Scroll right
nX = 1;
nY = 0;
}
if (pView->AreObjectsMarked() && !aCode.IsMod1() )
{
if(aCode.IsMod2())
{
// move in 1 pixel distance
Size aLogicSizeOnePixel = PixelToLogic(Size(1,1));
nX *= aLogicSizeOnePixel.Width();
nY *= aLogicSizeOnePixel.Height();
}
else
{
// old, fixed move distance
nX *= 100;
nY *= 100;
}
// II
const SdrHdlList& rHdlList = pView->GetHdlList();
SdrHdl* pHdl = rHdlList.GetFocusHdl();
if(nullptr == pHdl)
{
// restrict movement to WorkArea
const Rectangle& rWorkArea = pView->GetWorkArea();
if(!rWorkArea.IsEmpty())
{
Rectangle aMarkRect(pView->GetMarkedObjRect());
aMarkRect.Move(nX, nY);
if(!aMarkRect.IsInside(rWorkArea))
{
if(aMarkRect.Left() < rWorkArea.Left())
{
nX += rWorkArea.Left() - aMarkRect.Left();
}
if(aMarkRect.Right() > rWorkArea.Right())
{
nX -= aMarkRect.Right() - rWorkArea.Right();
}
if(aMarkRect.Top() < rWorkArea.Top())
{
nY += rWorkArea.Top() - aMarkRect.Top();
}
if(aMarkRect.Bottom() > rWorkArea.Bottom())
{
nY -= aMarkRect.Bottom() - rWorkArea.Bottom();
}
}
}
// no handle selected
if(0 != nX || 0 != nY)
{
pView->MoveAllMarked(Size(nX, nY));
}
}
else
{
// move handle with index nHandleIndex
if(pHdl && (nX || nY))
{
// now move the Handle (nX, nY)
Point aStartPoint(pHdl->GetPos());
Point aEndPoint(pHdl->GetPos() + Point(nX, nY));
const SdrDragStat& rDragStat = pView->GetDragStat();
// start dragging
pView->BegDragObj(aStartPoint, nullptr, pHdl, 0);
if(pView->IsDragObj())
{
bool bWasNoSnap = rDragStat.IsNoSnap();
bool bWasSnapEnabled = pView->IsSnapEnabled();
// switch snapping off
if(!bWasNoSnap)
((SdrDragStat&)rDragStat).SetNoSnap();
if(bWasSnapEnabled)
pView->SetSnapEnabled(false);
pView->MovAction(aEndPoint);
pView->EndDragObj();
// restore snap
if(!bWasNoSnap)
((SdrDragStat&)rDragStat).SetNoSnap(bWasNoSnap);
if(bWasSnapEnabled)
pView->SetSnapEnabled(bWasSnapEnabled);
}
}
}
bProc = true;
}
}
break;
case KEY_SPACE:
{
const SdrHdlList& rHdlList = pView->GetHdlList();
SdrHdl* pHdl = rHdlList.GetFocusHdl();
if(pHdl)
{
if(pHdl->GetKind() == SdrHdlKind::Poly)
{
// rescue ID of point with focus
sal_uInt32 nPol(pHdl->GetPolyNum());
sal_uInt32 nPnt(pHdl->GetPointNum());
if(pView->IsPointMarked(*pHdl))
{
if(rKEvt.GetKeyCode().IsShift())
{
pView->UnmarkPoint(*pHdl);
}
}
else
{
if(!rKEvt.GetKeyCode().IsShift())
{
pView->UnmarkAllPoints();
}
pView->MarkPoint(*pHdl);
}
if(nullptr == rHdlList.GetFocusHdl())
{
// restore point with focus
SdrHdl* pNewOne = nullptr;
for(size_t a = 0; !pNewOne && a < rHdlList.GetHdlCount(); ++a)
{
SdrHdl* pAct = rHdlList.GetHdl(a);
if(pAct
&& pAct->GetKind() == SdrHdlKind::Poly
&& pAct->GetPolyNum() == nPol
&& pAct->GetPointNum() == nPnt)
{
pNewOne = pAct;
}
}
if(pNewOne)
{
((SdrHdlList&)rHdlList).SetFocusHdl(pNewOne);
}
}
bProc = true;
}
}
}
break;
default:
break;
}
if ( !bProc )
Control::KeyInput( rKEvt );
else
ReleaseMouse();
QueueIdleUpdate();
}
void GraphCtrl::MouseButtonDown( const MouseEvent& rMEvt )
{
if ( bSdrMode && ( rMEvt.GetClicks() < 2 ) )
{
const Point aLogPt( PixelToLogic( rMEvt.GetPosPixel() ) );
if ( !Rectangle( Point(), aGraphSize ).IsInside( aLogPt ) && !pView->IsEditMode() )
Control::MouseButtonDown( rMEvt );
else
{
// Get Focus for key inputs
GrabFocus();
if ( nPolyEdit )
{
SdrViewEvent aVEvt;
SdrHitKind eHit = pView->PickAnything( rMEvt, SdrMouseEventKind::BUTTONDOWN, aVEvt );
if ( nPolyEdit == SID_BEZIER_INSERT && eHit == SdrHitKind::MarkedObject )
pView->BegInsObjPoint( aLogPt, rMEvt.IsMod1());
else
pView->MouseButtonDown( rMEvt, this );
}
else
pView->MouseButtonDown( rMEvt, this );
}
SdrObject* pCreateObj = pView->GetCreateObj();
// We want to realize the insert
if ( pCreateObj && !pCreateObj->GetUserCall() )
pCreateObj->SetUserCall( pUserCall );
SetPointer( pView->GetPreferredPointer( aLogPt, this ) );
}
else
Control::MouseButtonDown( rMEvt );
QueueIdleUpdate();
}
void GraphCtrl::MouseMove(const MouseEvent& rMEvt)
{
const Point aLogPos( PixelToLogic( rMEvt.GetPosPixel() ) );
if ( bSdrMode )
{
pView->MouseMove( rMEvt, this );
if( ( SID_BEZIER_INSERT == nPolyEdit ) &&
!pView->PickHandle( aLogPos ) &&
!pView->IsInsObjPoint() )
{
SetPointer( PointerStyle::Cross );
}
else
SetPointer( pView->GetPreferredPointer( aLogPos, this ) );
}
else
Control::MouseButtonUp( rMEvt );
if ( aMousePosLink.IsSet() )
{
if ( Rectangle( Point(), aGraphSize ).IsInside( aLogPos ) )
aMousePos = aLogPos;
else
aMousePos = Point();
aMousePosLink.Call( this );
}
QueueIdleUpdate();
}
void GraphCtrl::MouseButtonUp(const MouseEvent& rMEvt)
{
if ( bSdrMode )
{
if ( pView->IsInsObjPoint() )
pView->EndInsObjPoint( SdrCreateCmd::ForceEnd );
else
pView->MouseButtonUp( rMEvt, this );
ReleaseMouse();
SetPointer( pView->GetPreferredPointer( PixelToLogic( rMEvt.GetPosPixel() ), this ) );
}
else
Control::MouseButtonUp( rMEvt );
QueueIdleUpdate();
}
SdrObject* GraphCtrl::GetSelectedSdrObject() const
{
SdrObject* pSdrObj = nullptr;
if ( bSdrMode )
{
const SdrMarkList& rMarkList = pView->GetMarkedObjectList();
if ( rMarkList.GetMarkCount() == 1 )
pSdrObj = rMarkList.GetMark( 0 )->GetMarkedSdrObj();
}
return pSdrObj;
}
void GraphCtrl::SetEditMode( const bool _bEditMode )
{
if ( bSdrMode )
{
bEditMode = _bEditMode;
pView->SetEditMode( bEditMode );
eObjKind = OBJ_NONE;
pView->SetCurrentObj( sal::static_int_cast< sal_uInt16 >( eObjKind ) );
}
else
bEditMode = false;
QueueIdleUpdate();
}
void GraphCtrl::SetPolyEditMode( const sal_uInt16 _nPolyEdit )
{
if ( bSdrMode && ( _nPolyEdit != nPolyEdit ) )
{
nPolyEdit = _nPolyEdit;
pView->SetFrameDragSingles( nPolyEdit == 0 );
}
else
nPolyEdit = 0;
QueueIdleUpdate();
}
void GraphCtrl::SetObjKind( const SdrObjKind _eObjKind )
{
if ( bSdrMode )
{
bEditMode = false;
pView->SetEditMode( bEditMode );
eObjKind = _eObjKind;
pView->SetCurrentObj( sal::static_int_cast< sal_uInt16 >( eObjKind ) );
}
else
eObjKind = OBJ_NONE;
QueueIdleUpdate();
}
IMPL_LINK( GraphCtrl, UpdateHdl, Idle *, , void )
{
mbInIdleUpdate = true;
aUpdateLink.Call( this );
mbInIdleUpdate = false;
}
void GraphCtrl::QueueIdleUpdate()
{
if (!mbInIdleUpdate)
aUpdateIdle.Start();
}
css::uno::Reference< css::accessibility::XAccessible > GraphCtrl::CreateAccessible()
{
if( mpAccContext == nullptr )
{
vcl::Window* pParent = GetParent();
DBG_ASSERT( pParent, "-GraphCtrl::CreateAccessible(): No Parent!" );
if( pParent )
{
css::uno::Reference< css::accessibility::XAccessible > xAccParent( pParent->GetAccessible() );
// Disable accessibility if no model/view data available
if( pView &&
pModel &&
xAccParent.is() )
{
mpAccContext = new SvxGraphCtrlAccessibleContext( xAccParent, *this );
}
}
}
return mpAccContext.get();
}
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