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Diffstat (limited to 'sfx2/source/control/thumbnailviewitem.cxx')
| -rw-r--r-- | sfx2/source/control/thumbnailviewitem.cxx | 314 |
1 files changed, 314 insertions, 0 deletions
diff --git a/sfx2/source/control/thumbnailviewitem.cxx b/sfx2/source/control/thumbnailviewitem.cxx new file mode 100644 index 000000000..5562acc1e --- /dev/null +++ b/sfx2/source/control/thumbnailviewitem.cxx @@ -0,0 +1,314 @@ +/* -*- 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: */ |