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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 <vcl/toolkit/imgctrl.hxx>
#include <com/sun/star/awt/ImageScaleMode.hpp>
#include <osl/diagnose.h>
namespace ImageScaleMode = css::awt::ImageScaleMode;
ImageControl::ImageControl( vcl::Window* pParent, WinBits nStyle )
:FixedImage( pParent, nStyle )
,mnScaleMode( ImageScaleMode::ANISOTROPIC )
{
}
void ImageControl::SetScaleMode( const ::sal_Int16 _nMode )
{
if ( _nMode != mnScaleMode )
{
mnScaleMode = _nMode;
Invalidate();
}
}
void ImageControl::Resize()
{
Invalidate();
}
namespace
{
Size lcl_calcPaintSize( const tools::Rectangle& _rPaintRect, const Size& _rBitmapSize )
{
const Size aPaintSize = _rPaintRect.GetSize();
const double nRatioX = 1.0 * aPaintSize.Width() / _rBitmapSize.Width();
const double nRatioY = 1.0 * aPaintSize.Height() / _rBitmapSize.Height();
const double nRatioMin = ::std::min( nRatioX, nRatioY );
return Size( long( _rBitmapSize.Width() * nRatioMin ), long( _rBitmapSize.Height() * nRatioMin ) );
}
Point lcl_centerWithin( const tools::Rectangle& _rArea, const Size& _rObjectSize )
{
Point aPos( _rArea.TopLeft() );
aPos.AdjustX(( _rArea.GetWidth() - _rObjectSize.Width() ) / 2 );
aPos.AdjustY(( _rArea.GetHeight() - _rObjectSize.Height() ) / 2 );
return aPos;
}
}
void ImageControl::ImplDraw(OutputDevice& rDev, const Point& rPos, const Size& rSize) const
{
DrawImageFlags nStyle = DrawImageFlags::NONE;
if ( !IsEnabled() )
nStyle |= DrawImageFlags::Disable;
const Image& rImage( GetModeImage() );
const tools::Rectangle aDrawRect( rPos, rSize );
if (!rImage)
{
OUString sText( GetText() );
if ( sText.isEmpty() )
return;
WinBits nWinStyle = GetStyle();
DrawTextFlags nTextStyle = FixedText::ImplGetTextStyle( nWinStyle );
if ( !IsEnabled() )
nTextStyle |= DrawTextFlags::Disable;
rDev.DrawText( aDrawRect, sText, nTextStyle );
return;
}
const Size& rBitmapSize = rImage.GetSizePixel();
switch ( mnScaleMode )
{
case ImageScaleMode::NONE:
{
rDev.DrawImage(lcl_centerWithin( aDrawRect, rBitmapSize ), rImage, nStyle);
}
break;
case ImageScaleMode::ISOTROPIC:
{
const Size aPaintSize = lcl_calcPaintSize( aDrawRect, rBitmapSize );
rDev.DrawImage(lcl_centerWithin(aDrawRect, aPaintSize), aPaintSize, rImage, nStyle);
}
break;
case ImageScaleMode::ANISOTROPIC:
{
rDev.DrawImage(
aDrawRect.TopLeft(),
aDrawRect.GetSize(),
rImage, nStyle );
}
break;
default:
OSL_ENSURE( false, "ImageControl::ImplDraw: unhandled scale mode!" );
break;
} // switch ( mnScaleMode )
}
void ImageControl::Paint(vcl::RenderContext& rRenderContext, const tools::Rectangle& /*rRect*/)
{
ImplDraw(rRenderContext, Point(), GetOutputSizePixel());
if (!HasFocus())
return;
vcl::Window* pBorderWindow = GetWindow(GetWindowType::Border);
bool bFlat = (GetBorderStyle() == WindowBorderStyle::MONO);
tools::Rectangle aRect(Point(0,0), pBorderWindow->GetOutputSizePixel());
Color oldLineCol = pBorderWindow->GetLineColor();
Color oldFillCol = pBorderWindow->GetFillColor();
pBorderWindow->SetFillColor();
pBorderWindow->SetLineColor(bFlat ? COL_WHITE : COL_BLACK);
pBorderWindow->DrawRect(aRect);
aRect.AdjustLeft( 1 );
aRect.AdjustRight( -1 );
aRect.AdjustTop( 1 );
aRect.AdjustBottom( -1 );
pBorderWindow->SetLineColor(bFlat ? COL_BLACK : COL_WHITE);
pBorderWindow->DrawRect(aRect);
pBorderWindow->SetLineColor(oldLineCol);
pBorderWindow->SetFillColor(oldFillCol);
}
void ImageControl::Draw( OutputDevice* pDev, const Point& rPos, DrawFlags )
{
const Point aPos = pDev->LogicToPixel( rPos );
const Size aSize = GetSizePixel();
tools::Rectangle aRect( aPos, aSize );
pDev->Push();
pDev->SetMapMode();
// Border
if ( GetStyle() & WB_BORDER )
{
ImplDrawFrame( pDev, aRect );
}
pDev->IntersectClipRegion( aRect );
ImplDraw( *pDev, aRect.TopLeft(), aRect.GetSize() );
pDev->Pop();
}
void ImageControl::GetFocus()
{
FixedImage::GetFocus();
GetWindow( GetWindowType::Border )->Invalidate();
}
void ImageControl::LoseFocus()
{
FixedImage::GetFocus();
GetWindow( GetWindowType::Border )->Invalidate();
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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