ui/view/sdwindow.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 "Window.hxx"
#include <sfx2/dispatch.hxx>
#include <sfx2/request.hxx>

#include <sfx2/viewfrm.hxx>
#include <svx/svxids.hrc>

#include <editeng/outliner.hxx>
#include <editeng/editview.hxx>

#include "app.hrc"
#include "helpids.h"
#include "ViewShell.hxx"
#include "DrawViewShell.hxx"
#include "View.hxx"
#include "FrameView.hxx"
#include "OutlineViewShell.hxx"
#include "drawdoc.hxx"
#include "AccessibleDrawDocumentView.hxx"
#include "WindowUpdater.hxx"

#include <vcl/svapp.hxx>

namespace sd {

#define SCROLL_LINE_FACT   0.05     // Faktor fuer Zeilenscrolling
#define SCROLL_PAGE_FACT   0.5      // Faktor fuer Seitenscrolling
#define SCROLL_SENSITIVE   20       // Sensitiver Bereich (Pixel)
#define ZOOM_MULTIPLICATOR 10000    // Multiplikator um Rundungsfehler zu vermeiden
#define MIN_ZOOM	       5        // Minimaler Zoomfaktor
#define MAX_ZOOM	       3000	    // Maximaler Zoomfaktor


/*************************************************************************
|*
|* Konstruktor
|*
\************************************************************************/

Window::Window(::Window* pParent)
    : ::Window(pParent, WinBits(WB_CLIPCHILDREN | WB_DIALOGCONTROL)),
	  DropTargetHelper( this ),
      mpShareWin(NULL),
      maWinPos(0, 0),			// vorsichtshalber; die Werte sollten aber
      maViewOrigin(0, 0),		// vom Besitzer des Fensters neu gesetzt
      maViewSize(1000, 1000),	// werden
      mnMinZoom(MIN_ZOOM),
      mnMaxZoom(MAX_ZOOM),
	  mbMinZoomAutoCalc(false),
      mbCalcMinZoomByMinSide(true),
      mbCenterAllowed(true),
      mnTicks (0),
      mbDraggedFrom(false),
      mpViewShell(NULL),
      mbUseDropScroll (true)
{
	SetDialogControlFlags( WINDOW_DLGCTRL_RETURN | WINDOW_DLGCTRL_WANTFOCUS );

	MapMode aMap(GetMapMode());
	aMap.SetMapUnit(MAP_100TH_MM);
	SetMapMode(aMap);

	// Damit im Diamodus die ::WindowColor genommen wird
	SetBackground( Wallpaper( GetSettings().GetStyleSettings().GetWindowColor() ) );

	// adjust contrast mode initially
	bool bUseContrast = GetSettings().GetStyleSettings().GetHighContrastMode();
    SetDrawMode( bUseContrast
        ? ViewShell::OUTPUT_DRAWMODE_CONTRAST
        : ViewShell::OUTPUT_DRAWMODE_COLOR );

	// Hilfe-ID setzen
	// SetHelpId(HID_SD_WIN_DOCUMENT);
	SetUniqueId(HID_SD_WIN_DOCUMENT);

	// #i78183# Added after discussed with AF
	EnableRTL(sal_False);
}

/*************************************************************************
|*
|* Destruktor
|*
\************************************************************************/

Window::~Window (void)
{
    if (mpViewShell != NULL)
    {
        WindowUpdater* pWindowUpdater = mpViewShell->GetWindowUpdater();
        if (pWindowUpdater != NULL)
            pWindowUpdater->UnregisterWindow (this);
    }
}


void Window::SetViewShell (ViewShell* pViewSh)
{
    WindowUpdater* pWindowUpdater = NULL;
    // Unregister at device updater of old view shell.
    if (mpViewShell != NULL)
    {
        pWindowUpdater = mpViewShell->GetWindowUpdater();
        if (pWindowUpdater != NULL)
            pWindowUpdater->UnregisterWindow (this);
    }

    mpViewShell = pViewSh;

    // Register at device updater of new view shell
    if (mpViewShell != NULL)
    {
        pWindowUpdater = mpViewShell->GetWindowUpdater();
        if (pWindowUpdater != NULL)
            pWindowUpdater->RegisterWindow (this);
    }
}

void Window::CalcMinZoom()
{
    // Are we entitled to change the minimal zoom factor?
	if ( mbMinZoomAutoCalc )
	{
        // Get current zoom factor.
		long nZoom = GetZoom();

		if ( mpShareWin )
		{
			mpShareWin->CalcMinZoom();
			mnMinZoom = mpShareWin->mnMinZoom;
		}
		else
		{
            // Get the rectangle of the output area in logical coordinates
            // and calculate the scaling factors that would lead to the view
            // area (also called application area) to completely fill the
            // window.
			Size aWinSize = PixelToLogic(GetOutputSizePixel());
			sal_uLong nX = (sal_uLong) ((double) aWinSize.Width()
                * (double) ZOOM_MULTIPLICATOR / (double) maViewSize.Width());
			sal_uLong nY = (sal_uLong) ((double) aWinSize.Height()
                * (double) ZOOM_MULTIPLICATOR / (double) maViewSize.Height());

            // Decide whether to take the larger or the smaller factor.
			sal_uLong nFact;
			if (mbCalcMinZoomByMinSide)
                nFact = Min(nX, nY);
			else
                nFact = Max(nX, nY);

            // The factor is tansfomed according to the current zoom factor.
			nFact = nFact * nZoom / ZOOM_MULTIPLICATOR;
			mnMinZoom = Max((sal_uInt16) MIN_ZOOM, (sal_uInt16) nFact);
		}
        // If the current zoom factor is smaller than the calculated minimal
        // zoom factor then set the new minimal factor as the current zoom
        // factor.
		if ( nZoom < (long) mnMinZoom )
			SetZoomFactor(mnMinZoom);
	}
}


void Window::SetMinZoom (long int nMin)
{
    mnMinZoom = (sal_uInt16) nMin;
}


long Window::GetMinZoom (void) const
{
    return mnMinZoom;
}


void Window::SetMaxZoom (long int nMax)
{
    mnMaxZoom = (sal_uInt16) nMax;
}


long Window::GetMaxZoom (void) const
{
    return mnMaxZoom;
}


long Window::GetZoom (void) const
{
	if( GetMapMode().GetScaleX().GetDenominator() )
	{
		return GetMapMode().GetScaleX().GetNumerator() * 100L
			/ GetMapMode().GetScaleX().GetDenominator();
	}
	else
	{
		return 0;
	}
}


/*************************************************************************
|*
|* Resize event
|*
\************************************************************************/

void Window::Resize()
{
	::Window::Resize();
	CalcMinZoom();

    if( mpViewShell && mpViewShell->GetViewFrame() )
        mpViewShell->GetViewFrame()->GetBindings().Invalidate( SID_ATTR_ZOOMSLIDER );
}

/*************************************************************************
|*
|* PrePaint event
|*
\************************************************************************/

void Window::PrePaint()
{
	if ( mpViewShell )
		mpViewShell->PrePaint();
}

/*************************************************************************
|*
|* Paint event
|*
\************************************************************************/

void Window::Paint(const Rectangle& rRect)
{
	if ( mpViewShell )
		mpViewShell->Paint(rRect, this);
}

/*************************************************************************
|*
|* Keyboard event
|*
\************************************************************************/

void Window::KeyInput(const KeyEvent& rKEvt)
{
	if (!(mpViewShell && mpViewShell->KeyInput(rKEvt, this)))
	{
		if (mpViewShell && rKEvt.GetKeyCode().GetCode() == KEY_ESCAPE)
		{
            mpViewShell->GetViewShell()->Escape();
		}
		else
		{
			::Window::KeyInput(rKEvt);
		}
	}
}

/*************************************************************************
|*
|* MouseButtonDown event
|*
\************************************************************************/

void Window::MouseButtonDown(const MouseEvent& rMEvt)
{
	if ( mpViewShell )
		mpViewShell->MouseButtonDown(rMEvt, this);
}

/*************************************************************************
|*
|* MouseMove event
|*
\************************************************************************/

void Window::MouseMove(const MouseEvent& rMEvt)
{
	if ( mpViewShell )
		mpViewShell->MouseMove(rMEvt, this);
}

/*************************************************************************
|*
|* MouseButtonUp event
|*
\************************************************************************/

void Window::MouseButtonUp(const MouseEvent& rMEvt)
{
	mnTicks = 0;

	if ( mpViewShell )
		mpViewShell->MouseButtonUp(rMEvt, this);
}

/*************************************************************************
|*
|* Command event
|*
\************************************************************************/

void Window::Command(const CommandEvent& rCEvt)
{
	if ( mpViewShell )
		mpViewShell->Command(rCEvt, this);
}

long Window::Notify( NotifyEvent& rNEvt )
{
    long nResult = sal_False;
    if ( mpViewShell )
    {
        nResult = mpViewShell->Notify(rNEvt, this);
    }
    if( !nResult )
        nResult = ::Window::Notify( rNEvt );

    return nResult;
}


/*************************************************************************
|*
|* RequestHelp event
|*
\************************************************************************/

void Window::RequestHelp(const HelpEvent& rEvt)
{
	if ( mpViewShell )
	{
		if( !mpViewShell->RequestHelp( rEvt, this) )
			::Window::RequestHelp( rEvt );
	}
	else
		::Window::RequestHelp( rEvt );
}


Point Window::GetWinViewPos (void) const
{
    return maWinPos;
}


Point Window::GetViewOrigin (void) const
{
    return maViewOrigin;
}


Size Window::GetViewSize (void) const
{
    return maViewSize;
}


/*************************************************************************
|*
|* Position der linken oberen Ecke des im Fenster sichtbaren Bereichs
|* setzen
|*
\************************************************************************/

void Window::SetWinViewPos(const Point& rPnt)
{
	maWinPos = rPnt;
}

/*************************************************************************
|*
|* Ursprung der Darstellung in Bezug zur gesamten Arbeitsflaeche setzen
|*
\************************************************************************/

void Window::SetViewOrigin(const Point& rPnt)
{
	maViewOrigin = rPnt;
}

/*************************************************************************
|*
|* Groesse der gesamten Arbeitsflaeche, die mit dem Fenster betrachtet
|* werden kann, setzen
|*
\************************************************************************/

void Window::SetViewSize(const Size& rSize)
{
	maViewSize = rSize;
	CalcMinZoom();
}


void Window::SetCenterAllowed (bool bIsAllowed)
{
    mbCenterAllowed = bIsAllowed;
}


long Window::SetZoomFactor(long nZoom)
{
    // Clip the zoom factor to the valid range marked by nMinZoom as
    // calculated by CalcMinZoom() and the constant MAX_ZOOM.
	if ( nZoom > MAX_ZOOM )
        nZoom = MAX_ZOOM;
	if ( nZoom < (long) mnMinZoom )
        nZoom = mnMinZoom;

    // Set the zoom factor at the window's map mode.
	MapMode aMap(GetMapMode());
	aMap.SetScaleX(Fraction(nZoom, 100));
	aMap.SetScaleY(Fraction(nZoom, 100));
	SetMapMode(aMap);

    // Update the map mode's origin (to what effect?).
	UpdateMapOrigin();

    // Update the view's snapping to the the new zoom factor.
	if ( mpViewShell && mpViewShell->ISA(DrawViewShell) )
		((DrawViewShell*) mpViewShell)->GetView()->
										RecalcLogicSnapMagnetic(*this);

    // Return the zoom factor just in case it has been changed above to lie
    // inside the valid range.
	return nZoom;
}

void Window::SetZoomIntegral(long nZoom)
{
    // Clip the zoom factor to the valid range marked by nMinZoom as
    // previously calculated by <member>CalcMinZoom()</member> and the
    // MAX_ZOOM constant.
	if ( nZoom > MAX_ZOOM )
        nZoom = MAX_ZOOM;
	if ( nZoom < (long) mnMinZoom )
        nZoom = mnMinZoom;

    // Calculate the window's new origin.
	Size aSize = PixelToLogic(GetOutputSizePixel());
	long nW = aSize.Width()  * GetZoom() / nZoom;
	long nH = aSize.Height() * GetZoom() / nZoom;
	maWinPos.X() += (aSize.Width()  - nW) / 2;
	maWinPos.Y() += (aSize.Height() - nH) / 2;
	if ( maWinPos.X() < 0 ) maWinPos.X() = 0;
	if ( maWinPos.Y() < 0 ) maWinPos.Y() = 0;

    // Finally update this window's map mode to the given zoom factor that
    // has been clipped to the valid range.
	SetZoomFactor(nZoom);
}

long Window::GetZoomForRect( const Rectangle& rZoomRect )
{
	long nRetZoom = 100;

    if( (rZoomRect.GetWidth() != 0) && (rZoomRect.GetHeight() != 0))
    {
        // Calculate the scale factors which will lead to the given
        // rectangle being fully visible (when translated accordingly) as
        // large as possible in the output area independently in both
        // coordinate directions .
		sal_uLong nX(0L);
		sal_uLong nY(0L);

        const Size aWinSize( PixelToLogic(GetOutputSizePixel()) );
		if(rZoomRect.GetHeight())
		{
			nX = (sal_uLong) ((double) aWinSize.Height()
			   * (double) ZOOM_MULTIPLICATOR / (double) rZoomRect.GetHeight());
		}

		if(rZoomRect.GetWidth())
		{
			nY = (sal_uLong) ((double) aWinSize.Width()
				* (double) ZOOM_MULTIPLICATOR / (double) rZoomRect.GetWidth());
		}

        // Use the smaller one of both so that the zoom rectangle will be
        // fully visible with respect to both coordinate directions.
		sal_uLong nFact = Min(nX, nY);

        // Transform the current zoom factor so that it leads to the desired
        // scaling.
		nRetZoom = nFact * GetZoom() / ZOOM_MULTIPLICATOR;

        // Calculate the new origin.
		if ( nFact == 0 )
		{
            // Don't change anything if the scale factor is degenrate.
			nRetZoom = GetZoom();
		}
		else
		{
            // Clip the zoom factor to the valid range marked by nMinZoom as
            // previously calculated by <member>CalcMinZoom()</member> and the
            // MAX_ZOOM constant.
	        if ( nRetZoom > MAX_ZOOM )
                nRetZoom = MAX_ZOOM;
	        if ( nRetZoom < (long) mnMinZoom )
                nRetZoom = mnMinZoom;
       }
    }

    return nRetZoom;
}

/** Recalculate the zoom factor and translation so that the given rectangle
    is displayed centered and as large as possible while still being fully
    visible in the window.
*/
long Window::SetZoomRect (const Rectangle& rZoomRect)
{
	long nNewZoom = 100;

	if (rZoomRect.GetWidth() == 0 || rZoomRect.GetHeight() == 0)
	{
        // The given rectangle is degenerate.  Use the default zoom factor
        // (above) of 100%.
		SetZoomIntegral(nNewZoom);
	}
	else
	{
		Point aPos = rZoomRect.TopLeft();
        // Transform the output area from pixel coordinates into logical
        // coordinates.
		Size aWinSize = PixelToLogic(GetOutputSizePixel());
        // Paranoia!  The degenerate case of zero width or height has been
        // taken care of above.
		DBG_ASSERT(rZoomRect.GetWidth(), "ZoomRect-Breite = 0!");
		DBG_ASSERT(rZoomRect.GetHeight(), "ZoomRect-Hoehe = 0!");

        // Calculate the scale factors which will lead to the given
        // rectangle being fully visible (when translated accordingly) as
        // large as possible in the output area independently in both
        // coordinate directions .
		sal_uLong nX(0L);
		sal_uLong nY(0L);

		if(rZoomRect.GetHeight())
		{
			nX = (sal_uLong) ((double) aWinSize.Height()
			   * (double) ZOOM_MULTIPLICATOR / (double) rZoomRect.GetHeight());
		}

		if(rZoomRect.GetWidth())
		{
			nY = (sal_uLong) ((double) aWinSize.Width()
				* (double) ZOOM_MULTIPLICATOR / (double) rZoomRect.GetWidth());
		}

        // Use the smaller one of both so that the zoom rectangle will be
        // fully visible with respect to both coordinate directions.
		sal_uLong nFact = Min(nX, nY);

        // Transform the current zoom factor so that it leads to the desired
        // scaling.
		long nZoom = nFact * GetZoom() / ZOOM_MULTIPLICATOR;

        // Calculate the new origin.
		if ( nFact == 0 )
		{
            // Don't change anything if the scale factor is degenrate.
			nNewZoom = GetZoom();
		}
		else
		{
            // Calculate the new window position that centers the given
            // rectangle on the screen.
			if ( nZoom > MAX_ZOOM )
				nFact = nFact * MAX_ZOOM / nZoom;

			maWinPos = maViewOrigin + aPos;

			aWinSize.Width() = (long) ((double) aWinSize.Width() * (double) ZOOM_MULTIPLICATOR / (double) nFact);
			maWinPos.X() += (rZoomRect.GetWidth() - aWinSize.Width()) / 2;
			aWinSize.Height() = (long) ((double) aWinSize.Height() * (double) ZOOM_MULTIPLICATOR / (double) nFact);
			maWinPos.Y() += (rZoomRect.GetHeight() - aWinSize.Height()) / 2;

			if ( maWinPos.X() < 0 )	maWinPos.X() = 0;
			if ( maWinPos.Y() < 0 )	maWinPos.Y() = 0;

            // Adapt the window's map mode to the new zoom factor.
			nNewZoom = SetZoomFactor(nZoom);
		}
	}

	return(nNewZoom);
}


void Window::SetMinZoomAutoCalc (bool bAuto)
{
    mbMinZoomAutoCalc = bAuto;
}


/*************************************************************************
|*
|* Neuen MapMode-Origin berechnen und setzen; wenn aWinPos.X()/Y()
|* gleich -1 ist, wird die entsprechende Position zentriert
|* (z.B. fuer Initialisierung)
|*
\************************************************************************/

void Window::UpdateMapOrigin(sal_Bool bInvalidate)
{
	sal_Bool	bChanged = sal_False;
	Size	aWinSize = PixelToLogic(GetOutputSizePixel());

	if ( mbCenterAllowed )
	{
		if ( maWinPos.X() > maViewSize.Width() - aWinSize.Width() )
		{
			maWinPos.X() = maViewSize.Width() - aWinSize.Width();
			bChanged = sal_True;
		}
		if ( maWinPos.Y() > maViewSize.Height() - aWinSize.Height() )
		{
			maWinPos.Y() = maViewSize.Height() - aWinSize.Height();
			bChanged = sal_True;
		}
		if ( aWinSize.Width() > maViewSize.Width() || maWinPos.X() < 0 )
		{
			maWinPos.X() = maViewSize.Width()  / 2 - aWinSize.Width()  / 2;
			bChanged = sal_True;
		}
		if ( aWinSize.Height() > maViewSize.Height() || maWinPos.Y() < 0 )
		{
			maWinPos.Y() = maViewSize.Height() / 2 - aWinSize.Height() / 2;
			bChanged = sal_True;
		}
    }

    UpdateMapMode ();

    if (bChanged && bInvalidate)
        Invalidate();
}


void Window::UpdateMapMode (void)
{
	Size aWinSize = PixelToLogic(GetOutputSizePixel());
    maWinPos -= maViewOrigin;
    Size aPix(maWinPos.X(), maWinPos.Y());
    aPix = LogicToPixel(aPix);
    // Groesse muss vielfaches von BRUSH_SIZE sein, damit Muster
    // richtig dargestellt werden
    // #i2237#
    // removed old stuff here which still forced zoom to be
    // %BRUSH_SIZE which is outdated now

    if (mpViewShell && mpViewShell->ISA(DrawViewShell))
    {
        Size aViewSizePixel = LogicToPixel(maViewSize);
        Size aWinSizePixel = LogicToPixel(aWinSize);

        // Seite soll nicht am Fensterrand "kleben"
        if (aPix.Width() == 0)
        {
            // #i2237#
            // Since BRUSH_SIZE alignment is outdated now, i use the
            // former constant here directly
            aPix.Width() -= 8;
        }
        if (aPix.Height() == 0)
        {
            // #i2237#
            // Since BRUSH_SIZE alignment is outdated now, i use the
            // former constant here directly
            aPix.Height() -= 8;
        }
    }

    aPix = PixelToLogic(aPix);
    maWinPos.X() = aPix.Width();
    maWinPos.Y() = aPix.Height();
	Point aNewOrigin (-maWinPos.X(), -maWinPos.Y());
    maWinPos += maViewOrigin;

	MapMode aMap(GetMapMode());
    aMap.SetOrigin(aNewOrigin);
    SetMapMode(aMap);
}


/*************************************************************************
|*
|* X-Position des sichtbaren Bereichs als Bruchteil (< 1)
|* der gesamten Arbeitsbereichbreite zuruegeben
|*
\************************************************************************/

double Window::GetVisibleX()
{
	return ((double) maWinPos.X() / maViewSize.Width());
}

/*************************************************************************
|*
|* Y-Position des sichtbaren Bereichs als Bruchteil (< 1)
|* der gesamten Arbeitsbereichhoehe zuruegeben
|*
\************************************************************************/

double Window::GetVisibleY()
{
	return ((double) maWinPos.Y() / maViewSize.Height());
}

/*************************************************************************
|*
|* X- und Y-Position des sichtbaren Bereichs als Bruchteile (< 1)
|* der gesamten Arbeitsbereichgroesse setzen
|* negative Werte werden ignoriert
|*
\************************************************************************/

void Window::SetVisibleXY(double fX, double fY)
{
	long nOldX = maWinPos.X();
	long nOldY = maWinPos.Y();

	if ( fX >= 0 )
		maWinPos.X() = (long) (fX * maViewSize.Width());
	if ( fY >= 0 )
		maWinPos.Y() = (long) (fY * maViewSize.Height());
	UpdateMapOrigin(sal_False);
    //	Size sz(nOldX - aWinPos.X(), nOldY - aWinPos.Y());
    //	sz = LogicToPixel(sz);
	Scroll(nOldX - maWinPos.X(), nOldY - maWinPos.Y(), SCROLL_CHILDREN);
	Update();
}

/*************************************************************************
|*
|* Breite des sichtbaren Bereichs im Verhaeltnis zur
|* gesamten Arbeitsbereichbreite zuruegeben
|*
\************************************************************************/

double Window::GetVisibleWidth()
{
	Size aWinSize = PixelToLogic(GetOutputSizePixel());
	if ( aWinSize.Width() > maViewSize.Width() )
		aWinSize.Width() = maViewSize.Width();
	return ((double) aWinSize.Width() / maViewSize.Width());
}

/*************************************************************************
|*
|* Hoehe des sichtbaren Bereichs im Verhaeltnis zur
|* gesamten Arbeitsbereichhoehe zuruegeben
|*
\************************************************************************/

double Window::GetVisibleHeight()
{
	Size aWinSize = PixelToLogic(GetOutputSizePixel());
	if ( aWinSize.Height() > maViewSize.Height() )
		aWinSize.Height() = maViewSize.Height();
	return ((double) aWinSize.Height() / maViewSize.Height());
}

/*************************************************************************
|*
|* Breite einer Scrollspalte im Verhaeltnis zur gesamten
|* Arbeitsbereichbreite zuruegeben
|*
\************************************************************************/

double Window::GetScrlLineWidth()
{
	return (GetVisibleWidth() * SCROLL_LINE_FACT);
}

/*************************************************************************
|*
|* Breite einer Scrollspalte im Verhaeltnis zur gesamten
|* Arbeitsbereichhoehe zuruegeben
|*
\************************************************************************/

double Window::GetScrlLineHeight()
{
	return (GetVisibleHeight() * SCROLL_LINE_FACT);
}

/*************************************************************************
|*
|* Breite einer Scrollpage im Verhaeltnis zur gesamten
|* Arbeitsbereichbreite zuruegeben
|*
\************************************************************************/

double Window::GetScrlPageWidth()
{
	return (GetVisibleWidth() * SCROLL_PAGE_FACT);
}

/*************************************************************************
|*
|* Breite einer Scrollpage im Verhaeltnis zur gesamten
|* Arbeitsbereichhoehe zuruegeben
|*
\************************************************************************/

double Window::GetScrlPageHeight()
{
	return (GetVisibleHeight() * SCROLL_PAGE_FACT);
}

/*************************************************************************
|*
|* Fenster deaktivieren
|*
\************************************************************************/

void Window::LoseFocus()
{
	mnTicks = 0;
    ::Window::LoseFocus ();
}

/*************************************************************************
|*
|* Fenster aktivieren
|*
\************************************************************************/

void Window::GrabFocus()
{
	mnTicks		 = 0;
    ::Window::GrabFocus ();
}


/*************************************************************************
|*
|* DataChanged
|*
\************************************************************************/

void Window::DataChanged( const DataChangedEvent& rDCEvt )
{
	::Window::DataChanged( rDCEvt );

	// PRINTER bei allen Dokumenten weglassen, die keinen Printer benutzen.
	// FONTS und FONTSUBSTITUTION weglassen, wenn keine Textausgaben
	// vorhanden sind, bzw. wenn das Dokument keinen Text zulaesst.

	if ( (rDCEvt.GetType() == DATACHANGED_PRINTER) ||
		 (rDCEvt.GetType() == DATACHANGED_DISPLAY) ||
		 (rDCEvt.GetType() == DATACHANGED_FONTS) ||
		 (rDCEvt.GetType() == DATACHANGED_FONTSUBSTITUTION) ||
		 ((rDCEvt.GetType() == DATACHANGED_SETTINGS) &&
		  (rDCEvt.GetFlags() & SETTINGS_STYLE)) )
	{
		if ( (rDCEvt.GetType() == DATACHANGED_SETTINGS) &&
			 (rDCEvt.GetFlags() & SETTINGS_STYLE) )
		{
            // When the screen zoom factor has changed then reset the zoom
            // factor of the frame to allways display the whole page.
            const AllSettings* pOldSettings = rDCEvt.GetOldSettings ();
            const AllSettings& rNewSettings = GetSettings ();
            if (pOldSettings)
                if (pOldSettings->GetStyleSettings().GetScreenZoom()
                    != rNewSettings.GetStyleSettings().GetScreenZoom())
                    mpViewShell->GetViewFrame()->GetDispatcher()->
                        Execute(SID_SIZE_PAGE, SFX_CALLMODE_ASYNCHRON | SFX_CALLMODE_RECORD);

			// ScrollBars neu anordnen bzw. Resize ausloesen, da sich
			// ScrollBar-Groesse geaendert haben kann. Dazu muss dann im
			// Resize-Handler aber auch die Groesse der ScrollBars aus
			// den Settings abgefragt werden.
			Resize();

			// Daten neu Setzen, die aus den Systemeinstellungen bzw. aus
			// den Settings uebernommen werden. Evtl. weitere Daten neu
			// berechnen, da sich auch die Aufloesung hierdurch geaendert
			// haben kann.
            if( mpViewShell )
            {
				const StyleSettings&    rStyleSettings = GetSettings().GetStyleSettings();
				SvtAccessibilityOptions aAccOptions;
		        sal_uLong                   nOutputMode;
			    sal_uInt16                  nPreviewSlot;

				if( rStyleSettings.GetHighContrastMode() )
					nOutputMode = ViewShell::OUTPUT_DRAWMODE_CONTRAST;
				else
					nOutputMode = ViewShell::OUTPUT_DRAWMODE_COLOR;

				if( rStyleSettings.GetHighContrastMode() && aAccOptions.GetIsForPagePreviews() )
					nPreviewSlot = SID_PREVIEW_QUALITY_CONTRAST;
				else
					nPreviewSlot = SID_PREVIEW_QUALITY_COLOR;

                if( mpViewShell->ISA( DrawViewShell ) )
                {
			        SetDrawMode( nOutputMode );
                    mpViewShell->GetFrameView()->SetDrawMode( nOutputMode );
// #110094#-7
//			        mpViewShell->GetView()->ReleaseMasterPagePaintCache();
			        Invalidate();
                }

                // #103100# Overwrite window color for OutlineView
                if( mpViewShell->ISA(OutlineViewShell ) )
                {
                    svtools::ColorConfig aColorConfig;
                    const Color aDocColor( aColorConfig.GetColorValue( svtools::DOCCOLOR ).nColor );
					SetBackground( Wallpaper( aDocColor ) );
                }

                SfxRequest aReq( nPreviewSlot, 0, mpViewShell->GetDocSh()->GetDoc()->GetItemPool() );
                mpViewShell->ExecReq( aReq );
				mpViewShell->Invalidate();
                mpViewShell->ArrangeGUIElements();

				// #101928# re-create handles to show new outfit
				if(mpViewShell->ISA(DrawViewShell))
				{
					mpViewShell->GetView()->AdjustMarkHdl();
				}
            }
        }

		if ( (rDCEvt.GetType() == DATACHANGED_DISPLAY) ||
			 ((rDCEvt.GetType() == DATACHANGED_SETTINGS) &&
			  (rDCEvt.GetFlags() & SETTINGS_STYLE)) )
		{
			// Virtuelle Device die auch von der Aufloesung oder von
			// Systemeinstellungen abhaengen, sollten geupdatet werden.
			// Ansonsten sollte zumindest bei DATACHANGED_DISPLAY
			// die virtuellen Devices geupdatet werden, da es einige
			// Systeme erlauben die Aufloesung und Farbtiefe waehrend
			// der Laufzeit zu aendern oder eben bei Palettenaenderungen
			// die virtuellen Device geupdatet werden muessen, da bei
			// Ausgaben ein anderes Farbmatching stattfinden kann.
		}

		if ( rDCEvt.GetType() == DATACHANGED_FONTS )
		{
			// Wenn das Dokument Font-AuswahlBoxen anbietet, muessen
			// diese geupdatet werden. Wie dies genau aussehen muss,
			// weiss ich leider auch nicht. Aber evtl. kann man das
			// ja global handeln. Dies muessten wir evtl. mal
			// mit PB absprechen, aber der ist derzeit leider Krank.
			// Also bevor dies hier gehandelt wird, vorher mit
			// PB und mir absprechen.
		}

		if ( (rDCEvt.GetType() == DATACHANGED_FONTS) ||
			 (rDCEvt.GetType() == DATACHANGED_FONTSUBSTITUTION) )
		{
			// Formatierung neu durchfuehren, da Fonts die im Dokument
			// vorkommen, nicht mehr vorhanden sein muessen oder
			// jetzt vorhanden sind oder durch andere ersetzt wurden
			// sind.
			if( mpViewShell )
			{
				DrawDocShell* pDocSh = mpViewShell->GetDocSh();
				if( pDocSh )
					pDocSh->SetPrinter( pDocSh->GetPrinter( sal_True ) );
			}
		}

		if ( rDCEvt.GetType() == DATACHANGED_PRINTER )
		{
			// Wie hier die Behandlung aussehen soll, weiss ich leider
			// selbst noch nicht. Evtl. mal einen Printer loeschen und
			// schauen was gemacht werden muss. Evtl. muesste ich in
			// VCL dafuer noch etwas einbauen, wenn der benutze Printer
			// geloescht wird. Ansonsten wuerde ich hier evtl. die
			// Formatierung neu berechnen, wenn der aktuelle Drucker
			// zerstoert wurde.
			if( mpViewShell )
			{
				DrawDocShell* pDocSh = mpViewShell->GetDocSh();
				if( pDocSh )
					pDocSh->SetPrinter( pDocSh->GetPrinter( sal_True ) );
			}
		}

		// Alles neu ausgeben
		Invalidate();
	}
}


/*************************************************************************
|*
|* DropTargetHelper::AcceptDrop
|*
\************************************************************************/

sal_Int8 Window::AcceptDrop( const AcceptDropEvent& rEvt )
{
	sal_Int8 nRet = DND_ACTION_NONE;

	if( mpViewShell && !mpViewShell->GetDocSh()->IsReadOnly() )
	{
		if( mpViewShell )
			nRet = mpViewShell->AcceptDrop( rEvt, *this, this, SDRPAGE_NOTFOUND, SDRLAYER_NOTFOUND );

		if (mbUseDropScroll && ! mpViewShell->ISA(OutlineViewShell))
			DropScroll( rEvt.maPosPixel );
	}

	return nRet;
}

/*************************************************************************
|*
|* DropTargetHelper::ExecuteDrop
|*
\************************************************************************/

sal_Int8 Window::ExecuteDrop( const ExecuteDropEvent& rEvt )
{
	sal_Int8 nRet = DND_ACTION_NONE;

	if( mpViewShell )
	{
		nRet = mpViewShell->ExecuteDrop( rEvt, *this, this, SDRPAGE_NOTFOUND, SDRLAYER_NOTFOUND );
	}

	return nRet;
}


void Window::SetUseDropScroll (bool bUseDropScroll)
{
    mbUseDropScroll = bUseDropScroll;
}


/*************************************************************************
|*
|* Scrolling bei AcceptDrop-Events
|*
\************************************************************************/

void Window::DropScroll(const Point& rMousePos)
{
	short nDx = 0;
	short nDy = 0;

	Size aSize = GetOutputSizePixel();

	if (aSize.Width() > SCROLL_SENSITIVE * 3)
	{
		if ( rMousePos.X() < SCROLL_SENSITIVE )
		{
			nDx = -1;
		}

		if ( rMousePos.X() >= aSize.Width() - SCROLL_SENSITIVE )
		{
			nDx = 1;
		}
	}

	if (aSize.Height() > SCROLL_SENSITIVE * 3)
	{
		if ( rMousePos.Y() < SCROLL_SENSITIVE )
		{
			nDy = -1;
		}

		if ( rMousePos.Y() >= aSize.Height() - SCROLL_SENSITIVE )
		{
			nDy = 1;
		}
	}

	if ( (nDx || nDy) && (rMousePos.X()!=0 || rMousePos.Y()!=0 ) )
	{
        if (mnTicks > 20)
            mpViewShell->ScrollLines(nDx, nDy);
		else
            mnTicks ++;
	}
}


::com::sun::star::uno::Reference<
    ::com::sun::star::accessibility::XAccessible>
    Window::CreateAccessible (void)
{
	// If current viewshell is PresentationViewShell, just return empty because the correct ShowWin will be created later.
	if (mpViewShell && mpViewShell->ISA(PresentationViewShell))
	{
		return ::Window::CreateAccessible ();
	}
	::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > xAcc = GetAccessible(sal_False);
	if (xAcc.get())
	{
		return xAcc;
	}
    if (mpViewShell != NULL)
	{
		xAcc = mpViewShell->CreateAccessibleDocumentView (this);
		SetAccessible(xAcc);
		return xAcc;
	}
    else
    {
        OSL_TRACE ("::sd::Window::CreateAccessible: no view shell");
        return ::Window::CreateAccessible ();
    }
}

// MT: Removed Windows::SwitchView() introduced with IA2 CWS.
// There are other notifications for this when the active view has chnaged, so please update the code to use that event mechanism
void Window::SwitchView()
{
	if (!Application::IsAccessibilityEnabled())
	{
		return ;
	}
	if (mpViewShell)
	{
		mpViewShell->SwitchViewFireFocus(GetAccessible(sal_False));
	}
}

XubString Window::GetSurroundingText() const
{
    if ( mpViewShell->GetShellType() == ViewShell::ST_OUTLINE )
    {
    	return XubString();
    }
    else if ( mpViewShell->GetView()->IsTextEdit() )
    {
	    OutlinerView *pOLV = mpViewShell->GetView()->GetTextEditOutlinerView();
	    return pOLV->GetEditView().GetSurroundingText();
    }
    else
    {
    	return XubString();
    }
}

Selection Window::GetSurroundingTextSelection() const
{
    if ( mpViewShell->GetShellType() == ViewShell::ST_OUTLINE )
    {
	    return Selection( 0, 0 );
    }
    else if ( mpViewShell->GetView()->IsTextEdit() )
    {
	    OutlinerView *pOLV = mpViewShell->GetView()->GetTextEditOutlinerView();
	    return pOLV->GetEditView().GetSurroundingTextSelection();
    }
    else
    {
        return Selection( 0, 0 );
    }
}

} // end of namespace sd