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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 <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/primitive2d/fillgraphicprimitive2d.hxx>
+#include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
+#include <drawinglayer/primitive2d/PolyPolygonSelectionPrimitive2D.hxx>
+#include <drawinglayer/primitive2d/textlayoutdevice.hxx>
+#include <drawinglayer/primitive2d/textprimitive2d.hxx>
+#include <drawinglayer/processor2d/baseprocessor2d.hxx>
+#include <vcl/graph.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(ThumbnailViewBase &rView, sal_uInt16 nId)
+ : mrParent(rView)
+ , mnId(nId)
+ , mbVisible(true)
+ , mbSelected(false)
+ , mbHover(false)
+ , mxAcc()
+{
+}
+
+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().IsInside(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 long nThumbnailHeight,
+ const 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 aRectSize = maDrawArea.GetSize();
+ Size aImageSize = maPreview1.GetSizePixel();
+
+ // Calculate thumbnail position
+ Point aPos = maDrawArea.TopLeft();
+ aPos.setX( maDrawArea.getX() + (aRectSize.Width()-aImageSize.Width())/2 );
+ aPos.setY( maDrawArea.getY() + nPadding + (nThumbnailHeight-aImageSize.Height())/2 );
+ maPrev1Pos = aPos;
+
+ // Calculate text position
+ aPos.setY( maDrawArea.getY() + nThumbnailHeight + nPadding * 2 );
+ aPos.setX( maDrawArea.Left() + (aRectSize.Width() - aTextDev.getTextWidth(maTitle,0,nMaxTextLength))/2 );
+ maTextPos = aPos;
+}
+
+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)
+ ));
+
+ // 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());
+
+ OUString aText (rText);
+
+ TextEngine aTextEngine;
+ aTextEngine.SetMaxTextWidth(maDrawArea.getWidth());
+ aTextEngine.SetText(rText);
+
+ sal_Int32 nPrimitives = rSeq.size();
+ rSeq.resize(nPrimitives + aTextEngine.GetLineCount(0));
+
+ // Create the text primitives
+ sal_uInt16 nLineStart = 0;
+ 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) < rText.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 = aText.copy(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 && mbHover)
+ aTextColor = pAttrs->aSelectHighlightTextColor;
+ else if (mbSelected || mbHover)
+ aTextColor = pAttrs->aHighlightTextColor;
+
+ rSeq[nPrimitives++] = drawinglayer::primitive2d::Primitive2DReference(
+ new TextSimplePortionPrimitive2D(aTextMatrix,
+ aText, nLineStart, nLineLength,
+ std::vector<double>(),
+ pAttrs->aFontAttr,
+ css::lang::Locale(),
+ aTextColor));
+ nLineStart += nLineLength;
+ aPos.setY(aPos.getY() + aTextEngine.GetCharHeight());
+
+ if (bTooLong)
+ break;
+ }
+}
+
+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: */
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-01 07:42:23 +0000