/**************************************************************
 * 
 * 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_vcl.hxx"

#include <tools/ref.hxx>
#include <tools/rc.h>

#include <vcl/svapp.hxx>
#include <vcl/event.hxx>
#include <vcl/tabpage.hxx>
#include <vcl/tabctrl.hxx>
#include <vcl/bitmapex.hxx>

#include <svdata.hxx>

#include <com/sun/star/accessibility/XAccessible.hpp>

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

void TabPage::ImplInit( Window* pParent, WinBits nStyle )
{
    if ( !(nStyle & WB_NODIALOGCONTROL) )
        nStyle |= WB_DIALOGCONTROL;

    Window::ImplInit( pParent, nStyle, NULL );

    ImplInitSettings();

    // if the tabpage is drawn (ie filled) by a native widget, make sure all contols will have transparent background
    // otherwise they will paint with a wrong background
    if( IsNativeControlSupported(CTRL_TAB_BODY, PART_ENTIRE_CONTROL) && GetParent() && (GetParent()->GetType() == WINDOW_TABCONTROL) )
        EnableChildTransparentMode( sal_True );
}

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

void TabPage::ImplInitSettings()
{
    Window* pParent = GetParent();
    if ( pParent->IsChildTransparentModeEnabled() && !IsControlBackground() )
    {
        EnableChildTransparentMode( sal_True );
        SetParentClipMode( PARENTCLIPMODE_NOCLIP );
        SetPaintTransparent( sal_True );
        SetBackground();
    }
    else
    {
        EnableChildTransparentMode( sal_False );
        SetParentClipMode( 0 );
        SetPaintTransparent( sal_False );

        if ( IsControlBackground() )
            SetBackground( GetControlBackground() );
        else
            SetBackground( pParent->GetBackground() );
    }
}

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

TabPage::TabPage( Window* pParent, WinBits nStyle ) :
    Window( WINDOW_TABPAGE )
{
    ImplInit( pParent, nStyle );
}

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

TabPage::TabPage( Window* pParent, const ResId& rResId ) :
    Window( WINDOW_TABPAGE )
{
    rResId.SetRT( RSC_TABPAGE );
    WinBits nStyle = ImplInitRes( rResId );
    ImplInit( pParent, nStyle );
    ImplLoadRes( rResId );

    if ( !(nStyle & WB_HIDE) )
        Show();
}

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

void TabPage::StateChanged( StateChangedType nType )
{
    Window::StateChanged( nType );

    if ( nType == STATE_CHANGE_INITSHOW )
    {
        if ( GetSettings().GetStyleSettings().GetAutoMnemonic() )
            ImplWindowAutoMnemonic( this );
        // FIXME: no layouting, workaround some clipping issues
        ImplAdjustNWFSizes();
    }
    else if ( nType == STATE_CHANGE_CONTROLBACKGROUND )
    {
        ImplInitSettings();
        Invalidate();
    }
}

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

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

    if ( (rDCEvt.GetType() == DATACHANGED_SETTINGS) &&
         (rDCEvt.GetFlags() & SETTINGS_STYLE) )
    {
        ImplInitSettings();
        Invalidate();
    }
}

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

void TabPage::Paint( const Rectangle& )
{
    // draw native tabpage only inside tabcontrols, standalone tabpages look ugly (due to bad dialog design)
    if( IsNativeControlSupported(CTRL_TAB_BODY, PART_ENTIRE_CONTROL) && GetParent() && (GetParent()->GetType() == WINDOW_TABCONTROL) )
    {
        const ImplControlValue aControlValue;

        ControlState nState = CTRL_STATE_ENABLED;
        int part = PART_ENTIRE_CONTROL;
        if ( !IsEnabled() )
            nState &= ~CTRL_STATE_ENABLED;
        if ( HasFocus() )
            nState |= CTRL_STATE_FOCUSED;
        Point aPoint;
        // pass the whole window region to NWF as the tab body might be a gradient or bitmap
        // that has to be scaled properly, clipping makes sure that we do not paint too much
        Rectangle aCtrlRegion( aPoint, GetOutputSizePixel() );
        DrawNativeControl( CTRL_TAB_BODY, part, aCtrlRegion, nState,
                aControlValue, rtl::OUString() );
    }
}

// -----------------------------------------------------------------------
void TabPage::Draw( OutputDevice* pDev, const Point& rPos, const Size& rSize, sal_uLong )
{
    Point aPos = pDev->LogicToPixel( rPos );
    Size aSize = pDev->LogicToPixel( rSize );

    Wallpaper aWallpaper = GetBackground();
    if ( !aWallpaper.IsBitmap() )
        ImplInitSettings();
    
    pDev->Push();
    pDev->SetMapMode();
    pDev->SetLineColor();

    if ( aWallpaper.IsBitmap() )
        pDev->DrawBitmapEx( aPos, aSize, aWallpaper.GetBitmap() );
    else
    {
        if( aWallpaper.GetColor() == COL_AUTO )
            pDev->SetFillColor( GetSettings().GetStyleSettings().GetDialogColor() );
        else
            pDev->SetFillColor( aWallpaper.GetColor() );
        pDev->DrawRect( Rectangle( aPos, aSize ) );
    }

    pDev->Pop();
}

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

void TabPage::ActivatePage()
{
}

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

void TabPage::DeactivatePage()
{
}

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

::com::sun::star::uno::Reference< ::com::sun::star::accessibility::XAccessible > TabPage::CreateAccessible()
{
    // TODO: remove this method (incompatible)

    return Window::CreateAccessible();
}