sfx2/source/control/thumbnailviewitem.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <sfx2/thumbnailviewitem.hxx>
  21
  22 #include <sfx2/thumbnailview.hxx>
  23 #include "thumbnailviewacc.hxx"
  24
  25 #include <basegfx/matrix/b2dhommatrixtools.hxx>
  26 #include <basegfx/range/b2drectangle.hxx>
  27 #include <basegfx/vector/b2dsize.hxx>
  28 #include <basegfx/polygon/b2dpolygon.hxx>
  29 #include <drawinglayer/attribute/fillgraphicattribute.hxx>
  30 #include <drawinglayer/primitive2d/fillgraphicprimitive2d.hxx>
  31 #include <drawinglayer/primitive2d/polygonprimitive2d.hxx>
  32 #include <drawinglayer/primitive2d/polypolygonprimitive2d.hxx>
  33 #include <drawinglayer/primitive2d/textlayoutdevice.hxx>
  34 #include <drawinglayer/primitive2d/textprimitive2d.hxx>
  35 #include <drawinglayer/processor2d/baseprocessor2d.hxx>
  36 #include <vcl/button.hxx>
  37 #include <vcl/graph.hxx>
  38 #include <vcl/svapp.hxx>
  39 #include <vcl/texteng.hxx>
  40 #include <svtools/optionsdrawinglayer.hxx>
  41
  42 using namespace basegfx;
  43 using namespace basegfx::tools;
  44 using namespace ::com::sun::star;
  45 using namespace drawinglayer::attribute;
  46 using namespace drawinglayer::primitive2d;
  47
  48 class ResizableMultiLineEdit : public VclMultiLineEdit
  49 {
  50     private:
  51         ThumbnailViewItem* mpItem;
  52         bool mbIsInGrabFocus;
  53
  54     public:
  55         ResizableMultiLineEdit (Window* pParent, ThumbnailViewItem* pItem);
  56         ~ResizableMultiLineEdit ();
  57
  58         void SetInGrabFocus(bool bInGrabFocus) { mbIsInGrabFocus = bInGrabFocus; }
  59
  60         virtual long PreNotify(NotifyEvent& rNEvt);
  61         virtual void Modify();
  62 };
  63
  64 ResizableMultiLineEdit::ResizableMultiLineEdit (Window* pParent, ThumbnailViewItem* pItem) :
  65     VclMultiLineEdit (pParent, WB_CENTER | WB_BORDER),
  66     mpItem(pItem),
  67     mbIsInGrabFocus(false)
  68 {
  69 }
  70
  71 ResizableMultiLineEdit::~ResizableMultiLineEdit ()
  72 {
  73 }
  74
  75 long ResizableMultiLineEdit::PreNotify(NotifyEvent& rNEvt)
  76 {
  77     long nDone = 0;
  78     if( rNEvt.GetType() == EVENT_KEYINPUT )
  79     {
  80         const KeyEvent& rKEvt = *rNEvt.GetKeyEvent();
  81         KeyCode aCode = rKEvt.GetKeyCode();
  82         switch (aCode.GetCode())
  83         {
  84             case KEY_RETURN:
  85                 mpItem->setTitle( GetText() );
  86             case KEY_ESCAPE:
  87                 mpItem->setEditTitle(false);
  88                 nDone = 1;
  89                 break;
  90             default:
  91                 break;
  92         }
  93     }
  94     else if ( rNEvt.GetType() == EVENT_LOSEFOCUS && !mbIsInGrabFocus )
  95     {
  96         mpItem->setTitle( GetText() );
  97         mpItem->setEditTitle(false, false);
  98     }
  99     return nDone ? nDone : VclMultiLineEdit::PreNotify(rNEvt);
 100 }
 101
 102 void ResizableMultiLineEdit::Modify()
 103 {
 104     VclMultiLineEdit::Modify();
 105     mpItem->updateTitleEditSize();
 106 }
 107
 108 ThumbnailViewItem::ThumbnailViewItem(ThumbnailView &rView, sal_uInt16 nId)
 109     : mrParent(rView)
 110     , mnId(nId)
 111     , mbVisible(true)
 112     , mbSelected(false)
 113     , mbHover(false)
 114     , mpxAcc(NULL)
 115     , mbEditTitle(false)
 116     , mpTitleED(NULL)
 117     , maTextEditMaxArea()
 118 {
 119     mpTitleED = new ResizableMultiLineEdit(&rView, this);
 120 }
 121
 122 ThumbnailViewItem::~ThumbnailViewItem()
 123 {
 124     delete mpTitleED;
 125     if( mpxAcc )
 126     {
 127         static_cast< ThumbnailViewItemAcc* >( mpxAcc->get() )->ParentDestroyed();
 128         delete mpxAcc;
 129     }
 130 }
 131
 132 void ThumbnailViewItem::show (bool bVisible)
 133 {
 134     mbVisible = bVisible;
 135     if (!mbVisible)
 136         mpTitleED->Show(false);
 137 }
 138
 139 void ThumbnailViewItem::setSelection (bool state)
 140 {
 141     mbSelected = state;
 142 }
 143
 144 void ThumbnailViewItem::setHighlight (bool state)
 145 {
 146     mbHover = state;
 147 }
 148
 149 OUString ThumbnailViewItem::getHelpText() const
 150 {
 151     return maTitle;
 152 }
 153
 154 void ThumbnailViewItem::setEditTitle (bool edit, bool bChangeFocus)
 155 {
 156     mbEditTitle = edit;
 157     mpTitleED->Show(edit);
 158     if (edit)
 159     {
 160         mpTitleED->SetText(maTitle);
 161         updateTitleEditSize();
 162         static_cast<ResizableMultiLineEdit*>(mpTitleED)->SetInGrabFocus(true);
 163         mpTitleED->GrabFocus();
 164         static_cast<ResizableMultiLineEdit*>(mpTitleED)->SetInGrabFocus(false);
 165     }
 166     else if (bChangeFocus)
 167     {
 168         mrParent.GrabFocus();
 169     }
 170 }
 171
 172 Rectangle ThumbnailViewItem::getTextArea() const
 173 {
 174     Rectangle aTextArea(maTextEditMaxArea);
 175
 176     TextEngine aTextEngine;
 177     aTextEngine.SetMaxTextWidth(maDrawArea.getWidth());
 178     aTextEngine.SetText(maTitle);
 179
 180     long nTxtHeight = aTextEngine.GetTextHeight() + 6;
 181     if (nTxtHeight < aTextArea.GetHeight())
 182         aTextArea.SetSize(Size(aTextArea.GetWidth(), nTxtHeight));
 183
 184     return aTextArea;
 185 }
 186
 187 void ThumbnailViewItem::updateTitleEditSize()
 188 {
 189     Rectangle aTextArea = getTextArea();
 190     Point aPos = aTextArea.TopLeft();
 191     Size aSize = aTextArea.GetSize();
 192     mpTitleED->SetPosSizePixel(aPos, aSize);
 193 }
 194
 195 void ThumbnailViewItem::setTitle (const OUString& rTitle)
 196 {
 197     if (mrParent.renameItem(this, rTitle))
 198         maTitle = rTitle;
 199 }
 200
 201 uno::Reference< accessibility::XAccessible > ThumbnailViewItem::GetAccessible( bool bIsTransientChildrenDisabled )
 202 {
 203     if( !mpxAcc )
 204         mpxAcc = new uno::Reference< accessibility::XAccessible >( new ThumbnailViewItemAcc( this, bIsTransientChildrenDisabled ) );
 205
 206     return *mpxAcc;
 207 }
 208
 209 void ThumbnailViewItem::setDrawArea (const Rectangle &area)
 210 {
 211     maDrawArea = area;
 212 }
 213
 214 void ThumbnailViewItem::calculateItemsPosition (const long nThumbnailHeight, const long,
 215                                                 const long nPadding, sal_uInt32 nMaxTextLenght,
 216                                                 const ThumbnailItemAttributes *pAttrs)
 217 {
 218     drawinglayer::primitive2d::TextLayouterDevice aTextDev;
 219     aTextDev.setFontAttribute(pAttrs->aFontAttr,
 220                               pAttrs->aFontSize.getX(), pAttrs->aFontSize.getY(),
 221                               com::sun::star::lang::Locale() );
 222
 223     Size aRectSize = maDrawArea.GetSize();
 224     Size aImageSize = maPreview1.GetSizePixel();
 225
 226     // Calculate thumbnail position
 227     Point aPos = maDrawArea.TopLeft();
 228     aPos.X() = maDrawArea.getX() + (aRectSize.Width()-aImageSize.Width())/2;
 229     aPos.Y() = maDrawArea.getY() + nPadding + (nThumbnailHeight-aImageSize.Height())/2;
 230     maPrev1Pos = aPos;
 231
 232     // Calculate text position
 233     aPos.Y() = maDrawArea.getY() + nThumbnailHeight + nPadding * 2;
 234     aPos.X() = maDrawArea.Left() + (aRectSize.Width() - aTextDev.getTextWidth(maTitle,0,nMaxTextLenght))/2;
 235     maTextPos = aPos;
 236
 237     // Calculate the text edit max area
 238     aPos = Point(maDrawArea.getX() + nPadding, maTextPos.getY());
 239     Size aEditSize(maDrawArea.GetWidth() - nPadding * 2,
 240                    maDrawArea.Bottom() - maTextPos.Y());
 241     maTextEditMaxArea = Rectangle( aPos, aEditSize );
 242 }
 243
 244 void ThumbnailViewItem::setSelectClickHdl (const Link &link)
 245 {
 246     maClickHdl = link;
 247 }
 248
 249 void ThumbnailViewItem::Paint (drawinglayer::processor2d::BaseProcessor2D *pProcessor,
 250                                const ThumbnailItemAttributes *pAttrs)
 251 {
 252     BColor aFillColor = pAttrs->aFillColor;
 253     drawinglayer::primitive2d::Primitive2DSequence aSeq(4);
 254     double fTransparence = 0.0;
 255
 256     // Draw background
 257     if (mbSelected || mbHover)
 258         aFillColor = pAttrs->aHighlightColor;
 259
 260     if (mbHover)
 261     {
 262         const SvtOptionsDrawinglayer aSvtOptionsDrawinglayer;
 263         fTransparence = aSvtOptionsDrawinglayer.GetTransparentSelectionPercent() * 0.01;
 264     }
 265
 266     sal_uInt32 nPrimitive = 0;
 267     aSeq[nPrimitive++] = drawinglayer::primitive2d::Primitive2DReference( new PolyPolygonSelectionPrimitive2D(
 268                                                B2DPolyPolygon(Polygon(maDrawArea,5,5).getB2DPolygon()),
 269                                                aFillColor,
 270                                                fTransparence,
 271                                                0.0,
 272                                                true));
 273
 274     // Draw thumbnail
 275     Point aPos = maPrev1Pos;
 276     Size aImageSize = maPreview1.GetSizePixel();
 277
 278     aSeq[nPrimitive++] = drawinglayer::primitive2d::Primitive2DReference( new FillGraphicPrimitive2D(
 279                                         createTranslateB2DHomMatrix(aPos.X(),aPos.Y()),
 280                                         FillGraphicAttribute(Graphic(maPreview1),
 281                                                             B2DRange(
 282                                                                 B2DPoint(0,0),
 283                                                                 B2DPoint(aImageSize.Width(),aImageSize.Height())),
 284                                                             false)
 285                                         ));
 286
 287     // draw thumbnail borders
 288     float fWidth = aImageSize.Width();
 289     float fHeight = aImageSize.Height();
 290     float fPosX = maPrev1Pos.getX();
 291     float fPosY = maPrev1Pos.getY();
 292
 293     B2DPolygon aBounds;
 294     aBounds.append(B2DPoint(fPosX,fPosY));
 295     aBounds.append(B2DPoint(fPosX+fWidth,fPosY));
 296     aBounds.append(B2DPoint(fPosX+fWidth,fPosY+fHeight));
 297     aBounds.append(B2DPoint(fPosX,fPosY+fHeight));
 298     aBounds.setClosed(true);
 299
 300     aSeq[nPrimitive++] = drawinglayer::primitive2d::Primitive2DReference(createBorderLine(aBounds));
 301
 302     // Draw text below thumbnail
 303     aPos = maTextPos;
 304     addTextPrimitives( maTitle, pAttrs, aPos, aSeq );
 305
 306     pProcessor->process(aSeq);
 307 }
 308
 309 void ThumbnailViewItem::addTextPrimitives (const OUString& rText, const ThumbnailItemAttributes *pAttrs, Point aPos, drawinglayer::primitive2d::Primitive2DSequence& rSeq)
 310 {
 311     drawinglayer::primitive2d::TextLayouterDevice aTextDev;
 312
 313     aPos.setY(aPos.getY() + aTextDev.getTextHeight());
 314
 315     OUString aText (rText);
 316
 317     TextEngine aTextEngine;
 318     aTextEngine.SetMaxTextWidth(maDrawArea.getWidth());
 319     aTextEngine.SetText(rText);
 320
 321     sal_Int32 nPrimitives = rSeq.getLength();
 322     rSeq.realloc(nPrimitives + aTextEngine.GetLineCount(0));
 323
 324     // Create the text primitives
 325     sal_uInt16 nLineStart = 0;
 326     for (sal_uInt16 i=0; i<aTextEngine.GetLineCount(0); ++i)
 327     {
 328         sal_uInt16 nLineLength = aTextEngine.GetLineLen(0, i);
 329         double nLineWidth = aTextDev.getTextWidth (aText, nLineStart, nLineLength);
 330
 331         bool bTooLong = (aPos.getY() + aTextEngine.GetCharHeight()) > maDrawArea.Bottom();
 332         if (bTooLong && (nLineLength + nLineStart) < rText.getLength())
 333         {
 334             // Add the '...' to the last line to show, even though it may require to shorten the line
 335             double nDotsWidth = aTextDev.getTextWidth(OUString("..."),0,3);
 336
 337             sal_uInt16 nLength = nLineLength - 1;
 338             while ( nDotsWidth + aTextDev.getTextWidth(aText, nLineStart, nLength) > maDrawArea.getWidth() && nLength > 0)
 339             {
 340                 --nLength;
 341             }
 342
 343             aText = aText.copy(0, nLineStart+nLength);
 344             aText += "...";
 345             nLineLength = nLength + 3;
 346         }
 347
 348         double nLineX = maDrawArea.Left() + (maDrawArea.getWidth() - nLineWidth) / 2.0;
 349
 350         basegfx::B2DHomMatrix aTextMatrix( createScaleTranslateB2DHomMatrix(
 351                     pAttrs->aFontSize.getX(), pAttrs->aFontSize.getY(),
 352                     nLineX, double( aPos.Y() ) ) );
 353
 354         rSeq[nPrimitives++] = drawinglayer::primitive2d::Primitive2DReference(
 355                     new TextSimplePortionPrimitive2D(aTextMatrix,
 356                                                      aText,nLineStart,nLineLength,
 357                                                      std::vector< double >( ),
 358                                                      pAttrs->aFontAttr,
 359                                                      com::sun::star::lang::Locale(),
 360                                                      Color(COL_BLACK).getBColor() ) );
 361         nLineStart += nLineLength;
 362         aPos.setY(aPos.getY() + aTextEngine.GetCharHeight());
 363
 364         if (bTooLong)
 365             break;
 366     }
 367 }
 368
 369 drawinglayer::primitive2d::PolygonHairlinePrimitive2D*
 370 ThumbnailViewItem::createBorderLine (const basegfx::B2DPolygon& rPolygon)
 371 {
 372     return new PolygonHairlinePrimitive2D(rPolygon, Color(186,186,186).getBColor());
 373 }
 374
 375 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
 376
 377