/**************************************************************
 * 
 * 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 <com/sun/star/awt/Key.hpp>

#include "showwindow.hxx"

#include <unotools/syslocale.hxx>
#include <sfx2/viewfrm.hxx>


#include "res_bmp.hrc"
#include "slideshow.hxx"
#include "ViewShellBase.hxx"
#include "slideshow.hxx"
#include "sdresid.hxx"
#include "helpids.h"
#include "strings.hrc"
#include <vcl/virdev.hxx>

using namespace ::com::sun::star;

namespace sd {

static const sal_uLong HIDE_MOUSE_TIMEOUT = 10000;
static const sal_uLong SHOW_MOUSE_TIMEOUT = 1000;

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

ShowWindow::ShowWindow( const ::rtl::Reference< SlideshowImpl >& xController, ::Window* pParent )
: ::sd::Window( pParent )
, mnPauseTimeout( SLIDE_NO_TIMEOUT )
, mnRestartPageIndex( PAGE_NO_END )
, meShowWindowMode(SHOWWINDOWMODE_NORMAL)
, mbShowNavigatorAfterSpecialMode( sal_False )
, mbMouseAutoHide(true)
, mbMouseCursorHidden(false)
, mnFirstMouseMove(0)
, mxController( xController )
{
	SetOutDevViewType( OUTDEV_VIEWTYPE_SLIDESHOW );

    // Do never mirror the preview window.  This explicitly includes right
    // to left writing environments.
    EnableRTL (sal_False);

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

	// HelpId setzen
	SetHelpId( HID_SD_WIN_PRESENTATION );
	SetUniqueId( HID_SD_WIN_PRESENTATION );

	maPauseTimer.SetTimeoutHdl( LINK( this, ShowWindow, PauseTimeoutHdl ) );
	maPauseTimer.SetTimeout( 1000 );
	maMouseTimer.SetTimeoutHdl( LINK( this, ShowWindow, MouseTimeoutHdl ) );
	maMouseTimer.SetTimeout( HIDE_MOUSE_TIMEOUT );

	maShowBackground = Wallpaper( Color( COL_BLACK ) );
//	SetBackground( Wallpaper( Color( COL_BLACK ) ) );
    SetBackground(); // avoids that VCL paints any background!
	GetParent()->Show();
	AddEventListener( LINK( this, ShowWindow, EventHdl ) );
}

ShowWindow::~ShowWindow(void)
{
	maPauseTimer.Stop();
	maMouseTimer.Stop();
}

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

void ShowWindow::KeyInput(const KeyEvent& rKEvt)
{
	sal_Bool bReturn = sal_False;

	if( SHOWWINDOWMODE_PREVIEW == meShowWindowMode )
	{
		TerminateShow();
		bReturn = true;
	}
	else if( SHOWWINDOWMODE_END == meShowWindowMode )
	{
		const int nKeyCode = rKEvt.GetKeyCode().GetCode();
		switch( nKeyCode )
		{
		case KEY_PAGEUP:
		case KEY_LEFT:
		case KEY_UP:
		case KEY_P:
		case KEY_HOME:
		case KEY_END:
		case awt::Key::CONTEXTMENU:
			// these keys will be handled by the slide show even
			// while in end mode
			break;
		default:
			TerminateShow();
			bReturn = true;
		}
	}
	else if( SHOWWINDOWMODE_BLANK == meShowWindowMode )
	{
		RestartShow();
		bReturn = true;
	}
	else if( SHOWWINDOWMODE_PAUSE == meShowWindowMode )
	{
		const int nKeyCode = rKEvt.GetKeyCode().GetCode();
		switch( nKeyCode )
		{
		case KEY_ESCAPE:
			TerminateShow();
			bReturn = true;
			break;
		case KEY_PAGEUP:
		case KEY_RIGHT:
		case KEY_UP:
		case KEY_P:
		case KEY_HOME:
		case KEY_END:
		case awt::Key::CONTEXTMENU:
			// these keys will be handled by the slide show even
			// while in end mode
			break;
		default:
			RestartShow();
			bReturn = true;
			break;
		}
	}

	if( !bReturn )
	{
		if( mxController.is() )
			bReturn = mxController->keyInput(rKEvt);

		if( !bReturn )
		{
			if( mpViewShell )
			{
				mpViewShell->KeyInput(rKEvt,this);
			}
			else
			{
				Window::KeyInput(rKEvt);
			}
		}
	}

	if( mpViewShell )
		mpViewShell->SetActiveWindow( this );
}

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

void ShowWindow::MouseButtonDown(const MouseEvent& /*rMEvt*/)
{
	if( SHOWWINDOWMODE_PREVIEW == meShowWindowMode )
	{
		TerminateShow();
	}
	else if( mpViewShell )
	{
		mpViewShell->SetActiveWindow( this );
	}
}

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

void ShowWindow::MouseMove(const MouseEvent& /*rMEvt*/)
{
	if( mbMouseAutoHide )
	{
		if( mbMouseCursorHidden )
		{
			if( mnFirstMouseMove )
			{
				// if this is not the first mouse move while hidden, see if
				// enough time has pasted to show mouse pointer again
				sal_uLong nTime = Time::GetSystemTicks();
				if( (nTime - mnFirstMouseMove) >= SHOW_MOUSE_TIMEOUT )
				{
					ShowPointer( sal_True );
					mnFirstMouseMove = 0;
					mbMouseCursorHidden = false;
					maMouseTimer.SetTimeout( HIDE_MOUSE_TIMEOUT );
					maMouseTimer.Start();
				}
			}
			else
			{
				// if this is the first mouse move, note current
				// time and start idle timer to cancel show mouse pointer
				// again if not enough mouse movement is measured
				mnFirstMouseMove = Time::GetSystemTicks();
				maMouseTimer.SetTimeout( 2*SHOW_MOUSE_TIMEOUT );
				maMouseTimer.Start();
			}
		}
		else
		{
			// current mousemove restarts the idle timer to hide the mouse
			maMouseTimer.Start();
		}
	}

	if( mpViewShell )
		mpViewShell->SetActiveWindow( this );
}

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

void ShowWindow::MouseButtonUp(const MouseEvent& rMEvt)
{
	if( SHOWWINDOWMODE_PREVIEW == meShowWindowMode )
	{
		TerminateShow();
	}
	else if( (SHOWWINDOWMODE_END == meShowWindowMode) && !rMEvt.IsRight() )
	{
		TerminateShow();
	}
	else if( (( SHOWWINDOWMODE_BLANK == meShowWindowMode ) || ( SHOWWINDOWMODE_PAUSE == meShowWindowMode ))
			 && !rMEvt.IsRight() )
	{
        RestartShow();
	}
	else
	{
		if( mxController.is() )
			mxController->mouseButtonUp( rMEvt );
	}
}

/*************************************************************************
|*
|* Paint-Event: wenn FuSlideShow noch erreichbar ist, weiterleiten
|*
\************************************************************************/

void ShowWindow::Paint(const Rectangle& rRect)
{
	if( (meShowWindowMode == SHOWWINDOWMODE_NORMAL) || (meShowWindowMode == SHOWWINDOWMODE_PREVIEW) )
	{
/*
		Region aOldClipRegion( GetClipRegion() );
			
		Region aClipRegion( rRect );
		aClipRegion.Exclude( maPresArea );
		SetClipRegion( aClipRegion );

		DrawWallpaper( rRect, maShowBackground );

		SetClipRegion( aOldClipRegion );
*/
		if( mxController.is() )
		{
			mxController->paint(rRect);
		}
		else if(mpViewShell )
		{
			mpViewShell->Paint(rRect, this);
		}
	}
	else
	{
		DrawWallpaper( rRect, maShowBackground );

		if( SHOWWINDOWMODE_END == meShowWindowMode )
		{
			DrawEndScene();
		}
		else if( SHOWWINDOWMODE_PAUSE == meShowWindowMode )
		{
			DrawPauseScene( sal_False );
		}
		else if( SHOWWINDOWMODE_BLANK == meShowWindowMode )
		{
			DrawBlankScene();
		}
	}
}

/*************************************************************************
|*
|* Notify
|*
\************************************************************************/

long ShowWindow::Notify(NotifyEvent& rNEvt)
{
	long nOK = sal_False;
/*
	if( mpViewShell && rNEvt.GetType() == EVENT_GETFOCUS )
	{
		NotifyEvent aNEvt(EVENT_GETFOCUS, this);
		nOK = mpViewShell->GetViewFrame()->GetWindow().Notify(aNEvt);
	}
*/
	if (!nOK)
		nOK = Window::Notify(rNEvt);

	return nOK;
}


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

void ShowWindow::GetFocus()
{
	// Basisklasse
	Window::GetFocus();
/*
	if( mpViewShell )
	{
		NotifyEvent aNEvt(EVENT_GETFOCUS, this);
		mpViewShell->GetViewFrame()->GetWindow().Notify(aNEvt);
	}
*/
}

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

void ShowWindow::LoseFocus()
{
	Window::LoseFocus();

	if( SHOWWINDOWMODE_PREVIEW == meShowWindowMode)
		TerminateShow();
}

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

void ShowWindow::Resize()
{
	::sd::Window::Resize();
}

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

void ShowWindow::Move()
{
	::sd::Window::Move();
}

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

sal_Bool ShowWindow::SetEndMode()
{
	if( ( SHOWWINDOWMODE_NORMAL == meShowWindowMode ) && mpViewShell && mpViewShell->GetView() )
	{
		DeleteWindowFromPaintView();
		meShowWindowMode = SHOWWINDOWMODE_END;
//		maShowBackground = GetBackground();
//		SetBackground( Wallpaper( Color( COL_BLACK ) ) );
		maShowBackground = Wallpaper( Color( COL_BLACK ) );

		// hide navigator if it is visible
		if( mpViewShell->GetViewFrame()->GetChildWindow( SID_NAVIGATOR ) )
		{
			mpViewShell->GetViewFrame()->ShowChildWindow( SID_NAVIGATOR, sal_False );
			mbShowNavigatorAfterSpecialMode = sal_True;
		}

		Invalidate();
	}

	return( SHOWWINDOWMODE_END == meShowWindowMode );
}

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

sal_Bool ShowWindow::SetPauseMode( sal_Int32 nPageIndexToRestart, sal_Int32 nTimeout, Graphic* pLogo )
{
	rtl::Reference< SlideShow > xSlideShow;

	if( mpViewShell )
		xSlideShow = SlideShow::GetSlideShow( mpViewShell->GetViewShellBase() );

	if( xSlideShow.is() && !nTimeout )
	{
		xSlideShow->jumpToPageIndex( nPageIndexToRestart );
	}
	else if( ( SHOWWINDOWMODE_NORMAL == meShowWindowMode ) && mpViewShell && mpViewShell->GetView() )
	{
		DeleteWindowFromPaintView();
		mnPauseTimeout = nTimeout;
		mnRestartPageIndex = nPageIndexToRestart;
		meShowWindowMode = SHOWWINDOWMODE_PAUSE;
//		maShowBackground = GetBackground();
//		SetBackground( Wallpaper( Color( COL_BLACK ) ) );
		maShowBackground = Wallpaper( Color( COL_BLACK ) );

		// hide navigator if it is visible
		if( mpViewShell->GetViewFrame()->GetChildWindow( SID_NAVIGATOR ) )
		{
			mpViewShell->GetViewFrame()->ShowChildWindow( SID_NAVIGATOR, sal_False );
			mbShowNavigatorAfterSpecialMode = sal_True;
		}

		if( pLogo )
			maLogo = *pLogo;

		Invalidate();

		if( SLIDE_NO_TIMEOUT != mnPauseTimeout )
			maPauseTimer.Start();
	}

	return( SHOWWINDOWMODE_PAUSE == meShowWindowMode );
}

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

sal_Bool ShowWindow::SetBlankMode( sal_Int32 nPageIndexToRestart, const Color& rBlankColor )
{
    if( ( SHOWWINDOWMODE_NORMAL == meShowWindowMode ) && mpViewShell && mpViewShell->GetView() )
	{
		DeleteWindowFromPaintView();
		mnRestartPageIndex = nPageIndexToRestart;
		meShowWindowMode = SHOWWINDOWMODE_BLANK;
//		maShowBackground = GetBackground();
//		SetBackground( Wallpaper( rBlankColor ) );
		maShowBackground = Wallpaper( rBlankColor );

		// hide navigator if it is visible
		if( mpViewShell->GetViewFrame()->GetChildWindow( SID_NAVIGATOR ) )
		{
			mpViewShell->GetViewFrame()->ShowChildWindow( SID_NAVIGATOR, sal_False );
			mbShowNavigatorAfterSpecialMode = sal_True;
		}

		Invalidate();
	}

	return( SHOWWINDOWMODE_BLANK == meShowWindowMode );
}

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

void ShowWindow::SetPreviewMode()
{
	meShowWindowMode = SHOWWINDOWMODE_PREVIEW;
}

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

void ShowWindow::TerminateShow()
{
	maLogo.Clear();
	maPauseTimer.Stop();
	maMouseTimer.Stop();
	Erase();
//	SetBackground( maShowBackground );
	maShowBackground = Wallpaper( Color( COL_BLACK ) );
    meShowWindowMode = SHOWWINDOWMODE_NORMAL;
	mnPauseTimeout = SLIDE_NO_TIMEOUT;

	if( mpViewShell )
	{
		// show navigator?
		if( mbShowNavigatorAfterSpecialMode )
		{
			mpViewShell->GetViewFrame()->ShowChildWindow( SID_NAVIGATOR, sal_True );
			mbShowNavigatorAfterSpecialMode = sal_False;
		}
	}

	if( mxController.is() )
		mxController->endPresentation();

	mnRestartPageIndex = PAGE_NO_END;
}

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

void ShowWindow::RestartShow()
{
	RestartShow( mnRestartPageIndex );
}

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

void ShowWindow::RestartShow( sal_Int32 nPageIndexToRestart )

{
    ShowWindowMode eOldShowWindowMode = meShowWindowMode;

	maLogo.Clear();
	maPauseTimer.Stop();
	Erase();
//	SetBackground( maShowBackground );
	maShowBackground = Wallpaper( Color( COL_BLACK ) );
	meShowWindowMode = SHOWWINDOWMODE_NORMAL;
	mnPauseTimeout = SLIDE_NO_TIMEOUT;

	if( mpViewShell )
	{
		rtl::Reference< SlideShow > xSlideShow( SlideShow::GetSlideShow( mpViewShell->GetViewShellBase() ) );
  
 		if( xSlideShow.is() )
		{
			AddWindowToPaintView();
	
		    if( SHOWWINDOWMODE_BLANK == eOldShowWindowMode )
			{
				xSlideShow->pause(false);
				Invalidate();
			}
		    else
			{
				xSlideShow->jumpToPageIndex( nPageIndexToRestart );
			}
		}
	}

	mnRestartPageIndex = PAGE_NO_END;

	// show navigator?
	if( mbShowNavigatorAfterSpecialMode )
	{
		mpViewShell->GetViewFrame()->ShowChildWindow( SID_NAVIGATOR, sal_True );
		mbShowNavigatorAfterSpecialMode = sal_False;
	}
}

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

void ShowWindow::DrawPauseScene( sal_Bool bTimeoutOnly )
{
	const MapMode&	rMap = GetMapMode();
	const Point		aOutOrg( PixelToLogic( Point() ) );
	const Size		aOutSize( GetOutputSize() );
	const Size		aTextSize( LogicToLogic( Size( 0, 14 ), MAP_POINT, rMap ) );
	const Size		aOffset( LogicToLogic( Size( 1000, 1000 ), MAP_100TH_MM, rMap ) );
	String			aText( SdResId( STR_PRES_PAUSE ) );
	sal_Bool			bDrawn = sal_False;

	Font 			aFont( GetSettings().GetStyleSettings().GetMenuFont() );
	const Font 		aOldFont( GetFont() );

	aFont.SetSize( aTextSize );
	aFont.SetColor( COL_WHITE );
	aFont.SetCharSet( aOldFont.GetCharSet() );
	aFont.SetLanguage( aOldFont.GetLanguage() );

	if( !bTimeoutOnly && ( maLogo.GetType() != GRAPHIC_NONE ) )
	{
		Size aGrfSize;

		if( maLogo.GetPrefMapMode() == MAP_PIXEL )
			aGrfSize = PixelToLogic( maLogo.GetPrefSize() );
		else
			aGrfSize = LogicToLogic( maLogo.GetPrefSize(), maLogo.GetPrefMapMode(), rMap );

		const Point	aGrfPos( Max( aOutOrg.X() + aOutSize.Width() - aGrfSize.Width() - aOffset.Width(), aOutOrg.X() ),
							 Max( aOutOrg.Y() + aOutSize.Height() - aGrfSize.Height() - aOffset.Height(), aOutOrg.Y() ) );

		if( maLogo.IsAnimated() )
			maLogo.StartAnimation( this, aGrfPos, aGrfSize, (long) this );
		else
			maLogo.Draw( this, aGrfPos, aGrfSize );
	}

	if( SLIDE_NO_TIMEOUT != mnPauseTimeout )
	{
		MapMode			aVMap( rMap );
		VirtualDevice	aVDev( *this );

		aVMap.SetOrigin( Point() );
		aVDev.SetMapMode( aVMap );
		aVDev.SetBackground( Wallpaper( Color( COL_BLACK ) ) );
		
		// set font first, to determine real output height
		aVDev.SetFont( aFont );
			
		const Size aVDevSize( aOutSize.Width(), aVDev.GetTextHeight() );

		if( aVDev.SetOutputSize( aVDevSize ) )
		{
			// Note: if performance gets an issue here, we can use NumberFormatter directly
			SvtSysLocale				aSysLocale;
			const LocaleDataWrapper&    aLocaleData = aSysLocale.GetLocaleData();
			
			aText.AppendAscii( RTL_CONSTASCII_STRINGPARAM( " ( " ));
			aText += aLocaleData.getDuration( Time( 0, 0, mnPauseTimeout ) );
			aText.AppendAscii( RTL_CONSTASCII_STRINGPARAM( " )" ));
			aVDev.DrawText( Point( aOffset.Width(), 0 ), aText );
			DrawOutDev( Point( aOutOrg.X(), aOffset.Height() ), aVDevSize, Point(), aVDevSize, aVDev );
			bDrawn = sal_True;
		}
	}

	if( !bDrawn )
	{
		SetFont( aFont );
		DrawText( Point( aOutOrg.X() + aOffset.Width(), aOutOrg.Y() + aOffset.Height() ), aText );
		SetFont( aOldFont );
	}
}

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

void ShowWindow::DrawEndScene()
{
	const Font		aOldFont( GetFont() );
	Font			aFont( GetSettings().GetStyleSettings().GetMenuFont() );

	const Point		aOutOrg( PixelToLogic( Point() ) );
	const Size		aTextSize( LogicToLogic( Size( 0, 14 ), MAP_POINT, GetMapMode() ) );
	const String	aText( SdResId( STR_PRES_SOFTEND ) );

	aFont.SetSize( aTextSize );
	aFont.SetColor( COL_WHITE );
	aFont.SetCharSet( aOldFont.GetCharSet() );
	aFont.SetLanguage( aOldFont.GetLanguage() );
	SetFont( aFont );
	DrawText( Point( aOutOrg.X() + aTextSize.Height(), aOutOrg.Y() + aTextSize.Height() ), aText );
	SetFont( aOldFont );
}

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

void ShowWindow::DrawBlankScene()
{
    // just blank through background color => nothing to be done here
}

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

IMPL_LINK( ShowWindow, PauseTimeoutHdl, Timer*, pTimer )
{
	if( !( --mnPauseTimeout ) )
		RestartShow();
	else
	{
		DrawPauseScene( sal_True );
		pTimer->Start();
	}

	return 0L;
}

IMPL_LINK( ShowWindow, MouseTimeoutHdl, Timer*, EMPTYARG )
{
	if( mbMouseCursorHidden )
	{
		// not enough mouse movements since first recording so
		// cancle show mouse pointer for now
		mnFirstMouseMove = 0;
	}
	else
	{
		// mouse has been idle to long, hide pointer
		ShowPointer( sal_False );
		mbMouseCursorHidden = true;
	}
	return 0L;
}

IMPL_LINK( ShowWindow, EventHdl, VclWindowEvent*, pEvent )
{
	if( mbMouseAutoHide )
	{
		if (pEvent->GetId() == VCLEVENT_WINDOW_SHOW)
		{
			maMouseTimer.SetTimeout( HIDE_MOUSE_TIMEOUT );
			maMouseTimer.Start();
		}
	}
	return 0L;
}

void ShowWindow::SetPresentationArea( const Rectangle& rPresArea )
{
	maPresArea = rPresArea;
}

void ShowWindow::DeleteWindowFromPaintView()
{
	if( mpViewShell->GetView() )
		mpViewShell->GetView()->DeleteWindowFromPaintView( this );

    sal_uInt16 nChild = GetChildCount();
	while( nChild-- )
		GetChild( nChild )->Show( sal_False );
}

void ShowWindow::AddWindowToPaintView()
{
	if( mpViewShell->GetView() )
		mpViewShell->GetView()->AddWindowToPaintView( this );

    sal_uInt16 nChild = GetChildCount();
	while( nChild-- )
		GetChild( nChild )->Show( sal_True );
}

} // end of namespace sd