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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 <sfx2/thumbnailviewitem.hxx>
#include <sfx2/thumbnailview.hxx>
#include "thumbnailviewacc.hxx"
#include <basegfx/matrix/b2dhommatrixtools.hxx>
#include <basegfx/polygon/b2dpolygon.hxx>
#include <drawinglayer/attribute/fillgraphicattribute.hxx>
#include <drawinglayer/attribute/fontattribute.hxx>
#include <drawinglayer/attribute/lineattribute.hxx>
#include <drawinglayer/primitive2d/fillgraphicprimitive2d.hxx>
#include <drawinglayer/primitive2d/PolygonHairlinePrimitive2D.hxx>
#include <drawinglayer/primitive2d/PolyPolygonSelectionPrimitive2D.hxx>
#include <drawinglayer/primitive2d/PolygonStrokePrimitive2D.hxx>
#include <drawinglayer/primitive2d/textlayoutdevice.hxx>
#include <drawinglayer/primitive2d/textprimitive2d.hxx>
#include <drawinglayer/processor2d/baseprocessor2d.hxx>
#include <vcl/graph.hxx>
#include <vcl/outdev.hxx>
#include <vcl/texteng.hxx>
using namespace basegfx;
using namespace basegfx::utils;
using namespace ::com::sun::star;
using namespace drawinglayer::attribute;
using namespace drawinglayer::primitive2d;
ThumbnailViewItem::ThumbnailViewItem(ThumbnailView& rView, sal_uInt16 nId)
: mrParent(rView)
, mnId(nId)
, mbVisible(true)
, mbBorder(true)
, mbSelected(false)
, mbHover(false)
{
}
ThumbnailViewItem::~ThumbnailViewItem()
{
if( mxAcc.is() )
{
static_cast< ThumbnailViewItemAcc* >( mxAcc.get() )->ParentDestroyed();
}
}
void ThumbnailViewItem::show (bool bVisible)
{
mbVisible = bVisible;
}
void ThumbnailViewItem::setSelection (bool state)
{
mbSelected = state;
}
void ThumbnailViewItem::setHighlight (bool state)
{
mbHover = state;
}
::tools::Rectangle ThumbnailViewItem::updateHighlight(bool bVisible, const Point& rPoint)
{
bool bNeedsPaint = false;
if (bVisible && getDrawArea().Contains(rPoint))
{
if (!isHighlighted())
bNeedsPaint = true;
setHighlight(true);
}
else
{
if (isHighlighted())
bNeedsPaint = true;
setHighlight(false);
}
if (bNeedsPaint)
return getDrawArea();
return ::tools::Rectangle();
}
void ThumbnailViewItem::setTitle (const OUString& rTitle)
{
if (mrParent.renameItem(this, rTitle))
maTitle = rTitle;
}
uno::Reference< accessibility::XAccessible > const & ThumbnailViewItem::GetAccessible( bool bIsTransientChildrenDisabled )
{
if( !mxAcc.is() )
mxAcc = new ThumbnailViewItemAcc( this, bIsTransientChildrenDisabled );
return mxAcc;
}
void ThumbnailViewItem::setDrawArea (const ::tools::Rectangle &area)
{
maDrawArea = area;
}
void ThumbnailViewItem::calculateItemsPosition (const tools::Long nThumbnailHeight,
const tools::Long nPadding, sal_uInt32 nMaxTextLength,
const ThumbnailItemAttributes *pAttrs)
{
drawinglayer::primitive2d::TextLayouterDevice aTextDev;
aTextDev.setFontAttribute(pAttrs->aFontAttr,
pAttrs->aFontSize.getX(), pAttrs->aFontSize.getY(),
css::lang::Locale() );
Size aImageSize = maPreview1.GetSizePixel();
// Calculate thumbnail position
const Point aPos = maDrawArea.TopCenter();
maPrev1Pos = aPos + Point(-aImageSize.Width() / 2, nPadding + (nThumbnailHeight - aImageSize.Height()) / 2);
// Calculate text position
maTextPos = aPos + Point(-aTextDev.getTextWidth(maTitle, 0, nMaxTextLength) / 2, nThumbnailHeight + nPadding * 2);
}
void ThumbnailViewItem::Paint (drawinglayer::processor2d::BaseProcessor2D *pProcessor,
const ThumbnailItemAttributes *pAttrs)
{
BColor aFillColor = pAttrs->aFillColor;
drawinglayer::primitive2d::Primitive2DContainer aSeq(4);
double fTransparence = 0.0;
// Draw background
if( mbSelected && mbHover)
aFillColor = pAttrs->aSelectHighlightColor;
else if (mbSelected || mbHover)
{
aFillColor = pAttrs->aHighlightColor;
if (mbHover)
fTransparence = pAttrs->fHighlightTransparence;
}
sal_uInt32 nPrimitive = 0;
aSeq[nPrimitive++] = drawinglayer::primitive2d::Primitive2DReference(
new PolyPolygonSelectionPrimitive2D( B2DPolyPolygon(::tools::Polygon(maDrawArea, THUMBNAILVIEW_ITEM_CORNER, THUMBNAILVIEW_ITEM_CORNER).getB2DPolygon()),
aFillColor,
fTransparence,
0.0,
true));
// Draw thumbnail
Point aPos = maPrev1Pos;
Size aImageSize = maPreview1.GetSizePixel();
aSeq[nPrimitive++] = drawinglayer::primitive2d::Primitive2DReference( new FillGraphicPrimitive2D(
createTranslateB2DHomMatrix(aPos.X(),aPos.Y()),
FillGraphicAttribute(Graphic(maPreview1),
B2DRange(
B2DPoint(0,0),
B2DPoint(aImageSize.Width(),aImageSize.Height())),
false)
));
if (mbBorder)
{
// draw thumbnail borders
float fWidth = aImageSize.Width() - 1;
float fHeight = aImageSize.Height() - 1;
float fPosX = maPrev1Pos.getX();
float fPosY = maPrev1Pos.getY();
B2DPolygon aBounds;
aBounds.append(B2DPoint(fPosX,fPosY));
aBounds.append(B2DPoint(fPosX+fWidth,fPosY));
aBounds.append(B2DPoint(fPosX+fWidth,fPosY+fHeight));
aBounds.append(B2DPoint(fPosX,fPosY+fHeight));
aBounds.setClosed(true);
aSeq[nPrimitive++] = drawinglayer::primitive2d::Primitive2DReference(createBorderLine(aBounds));
}
// Draw text below thumbnail
addTextPrimitives(maTitle, pAttrs, maTextPos, aSeq);
pProcessor->process(aSeq);
}
void ThumbnailViewItem::addTextPrimitives (const OUString& rText, const ThumbnailItemAttributes *pAttrs, Point aPos, drawinglayer::primitive2d::Primitive2DContainer& rSeq)
{
// adjust text drawing position according to text font
drawinglayer::primitive2d::TextLayouterDevice aTextDev;
aTextDev.setFontAttribute(
pAttrs->aFontAttr,
pAttrs->aFontSize.getX(),
pAttrs->aFontSize.getY(),
css::lang::Locale());
aPos.setY(aPos.getY() + aTextDev.getTextHeight());
sal_Int32 nMnemonicPos = -1;
OUString aOrigText(mrParent.isDrawMnemonic() ? OutputDevice::GetNonMnemonicString(rText, nMnemonicPos) : rText);
TextEngine aTextEngine;
aTextEngine.SetFont(getVclFontFromFontAttribute(pAttrs->aFontAttr,
pAttrs->aFontSize.getX(), pAttrs->aFontSize.getY(), 0,
css::lang::Locale()));
aTextEngine.SetMaxTextWidth(maDrawArea.getWidth());
aTextEngine.SetText(aOrigText);
sal_Int32 nPrimitives = rSeq.size();
sal_Int32 nFinalPrimCount = nPrimitives + aTextEngine.GetLineCount(0);
rSeq.resize(nFinalPrimCount);
// Create the text primitives
sal_uInt16 nLineStart = 0;
OUString aText(aOrigText);
for (sal_uInt16 i=0; i < aTextEngine.GetLineCount(0); ++i)
{
sal_Int32 nLineLength = aTextEngine.GetLineLen(0, i);
double nLineWidth = aTextDev.getTextWidth (aText, nLineStart, nLineLength);
bool bTooLong = (aPos.getY() + aTextEngine.GetCharHeight()) > maDrawArea.Bottom();
if (bTooLong && (nLineLength + nLineStart) < aOrigText.getLength())
{
// Add the '...' to the last line to show, even though it may require to shorten the line
double nDotsWidth = aTextDev.getTextWidth("...",0,3);
sal_Int32 nLength = nLineLength - 1;
while ( nDotsWidth + aTextDev.getTextWidth(aText, nLineStart, nLength) > maDrawArea.getWidth() && nLength > 0)
{
--nLength;
}
aText = OUString::Concat(aText.subView(0, nLineStart+nLength)) + "...";
nLineLength = nLength + 3;
}
double nLineX = maDrawArea.Left() + (maDrawArea.getWidth() - nLineWidth) / 2.0;
basegfx::B2DHomMatrix aTextMatrix( createScaleTranslateB2DHomMatrix(
pAttrs->aFontSize.getX(), pAttrs->aFontSize.getY(),
nLineX, double( aPos.Y() ) ) );
// setup color
BColor aTextColor = pAttrs->aTextColor;
if(mbSelected)
{
if (mbHover)
aTextColor = pAttrs->aSelectHighlightTextColor;
else
aTextColor = pAttrs->aHighlightTextColor;
}
rSeq[nPrimitives++] = drawinglayer::primitive2d::Primitive2DReference(
new TextSimplePortionPrimitive2D(aTextMatrix,
aText, nLineStart, nLineLength,
std::vector<double>(),
pAttrs->aFontAttr,
css::lang::Locale(),
aTextColor));
if (nMnemonicPos != -1 && nMnemonicPos >= nLineStart && nMnemonicPos < nLineStart + nLineLength)
{
rSeq.resize(nFinalPrimCount + 1);
auto aCaretPositions = aTextDev.getCaretPositions(aText, nLineStart, nLineLength);
auto lc_x1 = aCaretPositions[2*(nMnemonicPos - nLineStart)];
auto lc_x2 = aCaretPositions[2*(nMnemonicPos - nLineStart)+1];
auto fMnemonicWidth = std::abs(lc_x1 - lc_x2);
auto fMnemonicHeight = aTextDev.getUnderlineHeight();
auto fPosX = nLineX + std::min(lc_x1, lc_x2);
auto fPosY = aPos.Y() + aTextDev.getUnderlineOffset();
B2DPolygon aLine;
aLine.append(B2DPoint(fPosX, fPosY));
aLine.append(B2DPoint(fPosX + fMnemonicWidth, fPosY));
drawinglayer::attribute::LineAttribute aLineAttribute(Color(aTextColor).getBColor(), fMnemonicHeight);
rSeq[nPrimitives++] = drawinglayer::primitive2d::Primitive2DReference(
new PolygonStrokePrimitive2D(aLine, aLineAttribute));
}
nLineStart += nLineLength;
aPos.setY(aPos.getY() + aTextEngine.GetCharHeight());
if (bTooLong)
break;
}
}
rtl::Reference<drawinglayer::primitive2d::PolygonHairlinePrimitive2D>
ThumbnailViewItem::createBorderLine (const basegfx::B2DPolygon& rPolygon)
{
return new PolygonHairlinePrimitive2D(rPolygon, Color(128, 128, 128).getBColor());
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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