AOO410/main/sd/source/ui/view/viewoverlaymanager.cxx

/**************************************************************
 * 
 * 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
 * 
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 * 
 *************************************************************/



// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_sd.hxx"

#include "sddll.hxx"

#include <com/sun/star/frame/XFrame.hpp>
#include <sfx2/imagemgr.hxx>
#include <sfx2/viewfrm.hxx>
#include <sfx2/bindings.hxx>
#include <sfx2/app.hxx>
#include <sfx2/request.hxx>
#include <sfx2/dispatch.hxx>

#include <tools/rcid.h>

#include <vcl/help.hxx>
#include <vcl/imagerepository.hxx>
#include <vcl/lazydelete.hxx>

#include <svx/sdrpagewindow.hxx>
#include <svx/sdrpaintwindow.hxx>
#include <svx/sdr/overlay/overlayanimatedbitmapex.hxx>
#include <svx/sdr/overlay/overlaybitmapex.hxx>
#include <svx/sdr/overlay/overlaymanager.hxx>
#include <svx/svxids.hrc>

#include "view/viewoverlaymanager.hxx"

#include "res_bmp.hrc"
#include "DrawDocShell.hxx"
#include "DrawViewShell.hxx"
#include "DrawController.hxx"
#include "glob.hrc"
#include "strings.hrc"
#include "sdresid.hxx"
#include "EventMultiplexer.hxx"
#include "ViewShellManager.hxx"
#include "helpids.h"
#include "sdpage.hxx"
#include "drawdoc.hxx"
#include "smarttag.hxx"

using ::rtl::OUString;
using namespace ::com::sun::star::uno;
using namespace ::com::sun::star::frame;

namespace sd {

class ImageButtonHdl;

// --------------------------------------------------------------------

static sal_uInt16 gButtonSlots[] = { SID_INSERT_TABLE, SID_INSERT_DIAGRAM, SID_INSERT_GRAPHIC, SID_INSERT_AVMEDIA };
static sal_uInt16 gButtonToolTips[] = { STR_INSERT_TABLE, STR_INSERT_CHART, STR_INSERT_PICTURE, STR_INSERT_MOVIE };

// --------------------------------------------------------------------

static BitmapEx loadImageResource( sal_uInt16 nId )
{
	SdResId aResId( nId );
	aResId.SetRT( RSC_BITMAP );

	return BitmapEx( aResId );
}

// --------------------------------------------------------------------

static BitmapEx* getButtonImage( int index, bool large )
{
	static vcl::DeleteOnDeinit< BitmapEx > gSmallButtonImages[BMP_PLACEHOLDER_SMALL_END - BMP_PLACEHOLDER_SMALL_START] = { 0, 0, 0, 0, 0, 0, 0, 0 };
	static vcl::DeleteOnDeinit< BitmapEx > gLargeButtonImages[BMP_PLACEHOLDER_LARGE_END - BMP_PLACEHOLDER_LARGE_START] = { 0, 0, 0, 0, 0, 0, 0, 0 };

	if( !gSmallButtonImages[0].get() )
	{
		for( sal_uInt16 i = 0; i < (BMP_PLACEHOLDER_SMALL_END-BMP_PLACEHOLDER_SMALL_START); i++ )
		{
			gSmallButtonImages[i].set( new BitmapEx( loadImageResource( BMP_PLACEHOLDER_SMALL_START + i ) ) );
			gLargeButtonImages[i].set( new BitmapEx( loadImageResource( BMP_PLACEHOLDER_LARGE_START + i ) ) );
		}
	}

	if( large )
	{
		return gLargeButtonImages[index].get();
	}
	else
	{
		return gSmallButtonImages[index].get();
	}
}

// --------------------------------------------------------------------

const sal_uInt32 SMART_TAG_HDL_NUM = SAL_MAX_UINT32;

class ChangePlaceholderTag : public SmartTag
{
    friend class ImageButtonHdl;
public:
	ChangePlaceholderTag( ViewOverlayManager& rManager, ::sd::View& rView, SdrObject& rPlaceholderObj );
	virtual ~ChangePlaceholderTag();

	/** returns true if the SmartTag handled the event. */
	virtual bool MouseButtonDown( const MouseEvent&, SmartHdl& );

	/** returns true if the SmartTag consumes this event. */
	virtual bool KeyInput( const KeyEvent& rKEvt );

	BitmapEx createOverlayImage( int nHighlight = -1 );

protected:
	virtual void addCustomHandles( SdrHdlList& rHandlerList );
	virtual void disposing();
	virtual void select();
	virtual void deselect();

private:
	ViewOverlayManager& mrManager;
	SdrObjectWeakRef    mxPlaceholderObj;
};

class ImageButtonHdl : public SmartHdl
{
public:
	ImageButtonHdl( const SmartTagReference& xTag, /* sal_uInt16 nSID, const Image& rImage, const Image& rImageMO, */ const Point& rPnt );
	virtual ~ImageButtonHdl();
	virtual void CreateB2dIAObject();
	virtual sal_Bool IsFocusHdl() const;
	virtual Pointer GetPointer() const;
	virtual bool isMarkable() const;

	virtual void onMouseEnter(const MouseEvent& rMEvt);
	virtual void onMouseLeave();

	int getHighlightId() const { return mnHighlightId; }

	void HideTip();

private:
	rtl::Reference< ChangePlaceholderTag > mxTag;

	int mnHighlightId;
	Size maImageSize;
	sal_uLong mnTip;
};

// --------------------------------------------------------------------

ImageButtonHdl::ImageButtonHdl( const SmartTagReference& xTag /*, sal_uInt16 nSID, const Image& rImage, const Image& rImageMO*/, const Point& rPnt )
: SmartHdl( xTag, rPnt )
, mxTag( dynamic_cast< ChangePlaceholderTag* >( xTag.get() ) )
, mnHighlightId( -1 )
, maImageSize( 42, 42 )
, mnTip( 0 )
{
}

// --------------------------------------------------------------------

ImageButtonHdl::~ImageButtonHdl()
{
	HideTip();
}

// --------------------------------------------------------------------

void ImageButtonHdl::HideTip()
{
	if( mnTip )
	{
		Help::HideTip( mnTip );
		mnTip = 0;
	}
}

// --------------------------------------------------------------------

extern ::rtl::OUString ImplRetrieveLabelFromCommand( const Reference< XFrame >& xFrame, const OUString& aCmdURL );

void ImageButtonHdl::onMouseEnter(const MouseEvent& rMEvt)
{
	int nHighlightId = 0;

	if( pHdlList && pHdlList->GetView())
	{
		OutputDevice* pDev = pHdlList->GetView()->GetFirstOutputDevice();
		if( pDev == 0 )
			pDev = Application::GetDefaultDevice();

		Point aMDPos( rMEvt.GetPosPixel() );
		aMDPos -= pDev->LogicToPixel( GetPos() );

		nHighlightId += aMDPos.X() > maImageSize.Width() ? 1 : 0;
		nHighlightId += aMDPos.Y() > maImageSize.Height() ? 2 : 0;

		if( mnHighlightId != nHighlightId )
		{
			HideTip();

			mnHighlightId = nHighlightId;

			if( pHdlList )
			{
				SdResId aResId( gButtonToolTips[mnHighlightId] );
				aResId.SetRT( RSC_STRING );

				String aHelpText( aResId );
				Rectangle aScreenRect( pDev->LogicToPixel( GetPos() ), maImageSize );
				mnTip = Help::ShowTip( static_cast< ::Window* >( pHdlList->GetView()->GetFirstOutputDevice() ), aScreenRect, aHelpText, 0 ) ;
			}
			Touch();
		}
	}
}

// --------------------------------------------------------------------

void ImageButtonHdl::onMouseLeave()
{
	mnHighlightId = -1;
	HideTip();
	Touch();
}

// --------------------------------------------------------------------

void ImageButtonHdl::CreateB2dIAObject()
{
	// first throw away old one
	GetRidOfIAObject();

	const Point aTagPos( GetPos() );
	basegfx::B2DPoint aPosition( aTagPos.X(), aTagPos.Y() );

	BitmapEx aBitmapEx( mxTag->createOverlayImage( mnHighlightId ) ); // maImageMO.GetBitmapEx() : maImage.GetBitmapEx() );
	maImageSize = aBitmapEx.GetSizePixel();
	maImageSize.Width() >>= 1;
	maImageSize.Height() >>= 1;

	if(pHdlList)
	{
		SdrMarkView* pView = pHdlList->GetView();

		if(pView && !pView->areMarkHandlesHidden())
		{
			SdrPageView* pPageView = pView->GetSdrPageView();

			if(pPageView)
			{
				for(sal_uInt32 b = 0; b < pPageView->PageWindowCount(); b++)
				{
					const SdrPageWindow& rPageWindow = *pPageView->GetPageWindow(b);

					SdrPaintWindow& rPaintWindow = rPageWindow.GetPaintWindow();
					if(rPaintWindow.OutputToWindow() && rPageWindow.GetOverlayManager() )
					{
						::sdr::overlay::OverlayObject* pOverlayObject = 0;

                        pOverlayObject = new ::sdr::overlay::OverlayBitmapEx( aPosition, aBitmapEx, 0, 0 );
						rPageWindow.GetOverlayManager()->add(*pOverlayObject);
						maOverlayGroup.append(*pOverlayObject);
					}
				}
			}
		}
	}
}

// --------------------------------------------------------------------

sal_Bool ImageButtonHdl::IsFocusHdl() const
{
	return false;
}

// --------------------------------------------------------------------

bool ImageButtonHdl::isMarkable() const
{
	return false;
}

// --------------------------------------------------------------------

Pointer ImageButtonHdl::GetPointer() const
{
	return Pointer( POINTER_ARROW );
}

// ====================================================================

ChangePlaceholderTag::ChangePlaceholderTag( ViewOverlayManager& rManager, ::sd::View& rView, SdrObject& rPlaceholderObj )
: SmartTag( rView )
, mrManager( rManager )
, mxPlaceholderObj( &rPlaceholderObj )
{
}

// --------------------------------------------------------------------

ChangePlaceholderTag::~ChangePlaceholderTag()
{
}

// --------------------------------------------------------------------

/** returns true if the ChangePlaceholderTag handled the event. */
bool ChangePlaceholderTag::MouseButtonDown( const MouseEvent& /*rMEvt*/, SmartHdl& rHdl )
{
	int nHighlightId = static_cast< ImageButtonHdl& >(rHdl).getHighlightId();
	if( nHighlightId >= 0 )
	{
		sal_uInt16 nSID = gButtonSlots[nHighlightId];

		if( mxPlaceholderObj.get() )
		{
			// mark placeholder if it is not currently marked (or if also others are marked)
			if( !mrView.IsObjMarked( mxPlaceholderObj.get() ) || (mrView.GetMarkedObjectList().GetMarkCount() != 1) )
			{
				SdrPageView* pPV = mrView.GetSdrPageView();
				mrView.UnmarkAllObj(pPV );
				mrView.MarkObj(mxPlaceholderObj.get(), pPV, sal_False);
			}
		}

		mrView.GetViewShell()->GetViewFrame()->GetDispatcher()->Execute( nSID, SFX_CALLMODE_ASYNCHRON);
	}
	return false;
}

// --------------------------------------------------------------------

/** returns true if the SmartTag consumes this event. */
bool ChangePlaceholderTag::KeyInput( const KeyEvent& rKEvt )
{
	sal_uInt16 nCode = rKEvt.GetKeyCode().GetCode();
	switch( nCode )
	{
	case KEY_DOWN:
	case KEY_UP:
	case KEY_LEFT:
	case KEY_RIGHT:
	case KEY_ESCAPE:
	case KEY_TAB:
    case KEY_RETURN:
   	case KEY_SPACE:
	default:
		return false;
	}
}

// --------------------------------------------------------------------

BitmapEx ChangePlaceholderTag::createOverlayImage( int nHighlight )
{
	BitmapEx aRet;
    if( mxPlaceholderObj.is() )
    {
        SdrObject* pPlaceholder = mxPlaceholderObj.get();
	    SmartTagReference xThis( this );
		const Rectangle& rSnapRect = pPlaceholder->GetSnapRect();
	    const Point aPoint;

		OutputDevice* pDev = mrView.GetFirstOutputDevice();
		if( pDev == 0 )
			pDev = Application::GetDefaultDevice();

        Size aShapeSizePix = pDev->LogicToPixel(rSnapRect.GetSize());
        long nShapeSizePix = std::min(aShapeSizePix.Width(),aShapeSizePix.Height());

		bool bLarge = nShapeSizePix > 250;

		Size aSize( getButtonImage( 0, bLarge )->GetSizePixel() );

		aRet.SetSizePixel( Size( aSize.Width() << 1, aSize.Height() << 1 ) );

		const Rectangle aRectSrc( Point( 0, 0 ), aSize );

		aRet = *(getButtonImage((nHighlight == 0) ? 4 : 0, bLarge));
		aRet.Expand( aSize.Width(), aSize.Height(), NULL, sal_True );

		aRet.CopyPixel( Rectangle( Point( aSize.Width(), 0				), aSize ), aRectSrc, getButtonImage((nHighlight == 1) ? 5 : 1, bLarge) );
		aRet.CopyPixel( Rectangle( Point( 0,			 aSize.Height() ), aSize ), aRectSrc, getButtonImage((nHighlight == 2) ? 6 : 2, bLarge) );
		aRet.CopyPixel( Rectangle( Point( aSize.Width(), aSize.Height() ), aSize ), aRectSrc, getButtonImage((nHighlight == 3) ? 7 : 3, bLarge) );
	}

	return aRet;
}

void ChangePlaceholderTag::addCustomHandles( SdrHdlList& rHandlerList )
{
    if( mxPlaceholderObj.is() )
    {
        SdrObject* pPlaceholder = mxPlaceholderObj.get();
	    SmartTagReference xThis( this );
		const Rectangle& rSnapRect = pPlaceholder->GetSnapRect();
	    const Point aPoint;

		OutputDevice* pDev = mrView.GetFirstOutputDevice();
		if( pDev == 0 )
			pDev = Application::GetDefaultDevice();

        Size aShapeSizePix = pDev->LogicToPixel(rSnapRect.GetSize());
        long nShapeSizePix = std::min(aShapeSizePix.Width(),aShapeSizePix.Height());
        if( 50 > nShapeSizePix )
            return;
        
        bool bLarge = nShapeSizePix > 250;

		Size aButtonSize( pDev->PixelToLogic( getButtonImage(0, bLarge )->GetSizePixel()) );

		const int nColumns = 2;
		const int nRows = 2;

		long all_width = nColumns * aButtonSize.Width();
		long all_height = nRows * aButtonSize.Height();

		Point aPos( rSnapRect.Center() );
		aPos.X() -= all_width >> 1;
		aPos.Y() -= all_height >> 1;

		ImageButtonHdl* pHdl = new ImageButtonHdl( xThis, aPoint );
		pHdl->SetObjHdlNum( SMART_TAG_HDL_NUM );
		pHdl->SetPageView( mrView.GetSdrPageView() );
    
		pHdl->SetPos( aPos );

		rHandlerList.AddHdl( pHdl );
    }
}

// --------------------------------------------------------------------

void ChangePlaceholderTag::disposing()
{
	SmartTag::disposing();
}

// --------------------------------------------------------------------

void ChangePlaceholderTag::select()
{
	SmartTag::select();
}

// --------------------------------------------------------------------

void ChangePlaceholderTag::deselect()
{
	SmartTag::deselect();
}

// --------------------------------------------------------------------

ViewOverlayManager::ViewOverlayManager( ViewShellBase& rViewShellBase )
: mrBase( rViewShellBase )
, mnUpdateTagsEvent( 0 )
{
	Link aLink( LINK(this,ViewOverlayManager,EventMultiplexerListener) );
    mrBase.GetEventMultiplexer()->AddEventListener(aLink, tools::EventMultiplexerEvent::EID_CURRENT_PAGE
		| tools::EventMultiplexerEvent::EID_MAIN_VIEW_ADDED
		| tools::EventMultiplexerEvent::EID_VIEW_ADDED
		| tools::EventMultiplexerEvent::EID_BEGIN_TEXT_EDIT
		| tools::EventMultiplexerEvent::EID_END_TEXT_EDIT );

    StartListening( *mrBase.GetDocShell() );    
}

// --------------------------------------------------------------------

ViewOverlayManager::~ViewOverlayManager()
{
    Link aLink( LINK(this,ViewOverlayManager,EventMultiplexerListener) );
    mrBase.GetEventMultiplexer()->RemoveEventListener( aLink );

    if( mnUpdateTagsEvent )
    {
        Application::RemoveUserEvent( mnUpdateTagsEvent );
        mnUpdateTagsEvent = 0;
    }

	DisposeTags();
}

// --------------------------------------------------------------------

void ViewOverlayManager::Notify(SfxBroadcaster&, const SfxHint& rHint)
{
    const SfxSimpleHint* pSimpleHint = dynamic_cast<const SfxSimpleHint*>(&rHint);
    if (pSimpleHint != NULL)
    {
        if (pSimpleHint->GetId() == SFX_HINT_DOCCHANGED)
        {
            UpdateTags();
        }
    }
}

void ViewOverlayManager::onZoomChanged()
{
    if( !maTagVector.empty() )
    {
        UpdateTags();
    }
}

void ViewOverlayManager::UpdateTags()
{
    if( !mnUpdateTagsEvent )
        mnUpdateTagsEvent = Application::PostUserEvent( LINK( this, ViewOverlayManager, UpdateTagsHdl ) );
}

IMPL_LINK(ViewOverlayManager,UpdateTagsHdl, void *, EMPTYARG)
{
	OSL_TRACE("ViewOverlayManager::UpdateTagsHdl");

    mnUpdateTagsEvent  = 0;
    bool bChanges = DisposeTags();
    bChanges |= CreateTags();
        
    if( bChanges && mrBase.GetDrawView() )
        static_cast< ::sd::View* >( mrBase.GetDrawView() )->updateHandles();        
    return 0;
}

bool ViewOverlayManager::CreateTags()
{
    bool bChanges = false;
    
    SdPage* pPage = mrBase.GetMainViewShell()->getCurrentPage();
    
    if( pPage && !pPage->IsMasterPage() && (pPage->GetPageKind() == PK_STANDARD) )    
    {
		const std::list< SdrObject* >& rShapes = pPage->GetPresentationShapeList().getList();
    	
    	for( std::list< SdrObject* >::const_iterator iter( rShapes.begin() ); iter != rShapes.end(); iter++ )
    	{
    	    if( (*iter)->IsEmptyPresObj() && ((*iter)->GetObjIdentifier() == OBJ_OUTLINETEXT) && (mrBase.GetDrawView()->GetTextEditObject() != (*iter)) )
    	    {
    	        rtl::Reference< SmartTag > xTag( new ChangePlaceholderTag( *this, *mrBase.GetMainViewShell()->GetView(), *(*iter) ) );
    	        maTagVector.push_back(xTag);
				bChanges = true;
    	    }
    	}
    }
    
    return bChanges;
}

// --------------------------------------------------------------------

bool ViewOverlayManager::DisposeTags()
{
	if( !maTagVector.empty() )
	{
	    ViewTagVector vec;
	    vec.swap( maTagVector );
	    
		ViewTagVector::iterator iter = vec.begin();
		do
		{
			(*iter++)->Dispose();
		}
		while( iter != vec.end() );
		return true;
	}
	
	return false;
}

// --------------------------------------------------------------------

IMPL_LINK(ViewOverlayManager,EventMultiplexerListener,
    tools::EventMultiplexerEvent*,pEvent)
{
    switch (pEvent->meEventId)
    {
		case tools::EventMultiplexerEvent::EID_MAIN_VIEW_ADDED:
		case tools::EventMultiplexerEvent::EID_VIEW_ADDED:
		case tools::EventMultiplexerEvent::EID_BEGIN_TEXT_EDIT:
		case tools::EventMultiplexerEvent::EID_END_TEXT_EDIT:
        case tools::EventMultiplexerEvent::EID_CURRENT_PAGE:
            UpdateTags();
            break;
    }
    return 0;
}

}