svx/source/styles/CommonStylePreviewRenderer.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  */
  10
  11 #include <memory>
  12 #include <CommonStylePreviewRenderer.hxx>
  13
  14 #include <sfx2/objsh.hxx>
  15 #include <svl/style.hxx>
  16 #include <svl/itemset.hxx>
  17 #include <vcl/outdev.hxx>
  18
  19 #include <com/sun/star/drawing/FillStyle.hpp>
  20 #include <svx/xdef.hxx>
  21 #include <svx/xfillit0.hxx>
  22 #include <svx/xflclit.hxx>
  23 #include <editeng/brushitem.hxx>
  24 #include <editeng/fontitem.hxx>
  25 #include <editeng/fhgtitem.hxx>
  26 #include <editeng/charreliefitem.hxx>
  27 #include <editeng/contouritem.hxx>
  28 #include <editeng/colritem.hxx>
  29 #include <editeng/crossedoutitem.hxx>
  30 #include <editeng/emphasismarkitem.hxx>
  31 #include <editeng/postitem.hxx>
  32 #include <editeng/shdditem.hxx>
  33 #include <editeng/udlnitem.hxx>
  34 #include <editeng/wghtitem.hxx>
  35 #include <editeng/svxfont.hxx>
  36 #include <editeng/cmapitem.hxx>
  37
  38 #include <editeng/editids.hrc>
  39
  40 using namespace css;
  41
  42 namespace svx
  43 {
  44
  45 CommonStylePreviewRenderer::CommonStylePreviewRenderer(
  46                                 const SfxObjectShell& rShell, OutputDevice& rOutputDev,
  47                                 SfxStyleSheetBase* pStyle, tools::Long nMaxHeight)
  48     : StylePreviewRenderer(rShell, rOutputDev, pStyle, nMaxHeight)
  49     , m_pFont()
  50     , maFontColor(COL_AUTO)
  51     , maHighlightColor(COL_AUTO)
  52     , maBackgroundColor(COL_AUTO)
  53     , maPixelSize()
  54     , maStyleName(mpStyle->GetName())
  55 {
  56 }
  57
  58 CommonStylePreviewRenderer::~CommonStylePreviewRenderer()
  59 {}
  60
  61 bool CommonStylePreviewRenderer::recalculate()
  62 {
  63     m_pFont.reset();
  64
  65     std::unique_ptr<SfxItemSet> pItemSet(mpStyle->GetItemSetForPreview());
  66
  67     if (!pItemSet) return false;
  68
  69     std::unique_ptr<SvxFont> pFont(new SvxFont);
  70
  71     const SfxPoolItem* pItem;
  72
  73     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_WEIGHT)) != nullptr)
  74     {
  75         pFont->SetWeight(static_cast<const SvxWeightItem*>(pItem)->GetWeight());
  76     }
  77     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_POSTURE)) != nullptr)
  78     {
  79         pFont->SetItalic(static_cast<const SvxPostureItem*>(pItem)->GetPosture());
  80     }
  81     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_CONTOUR)) != nullptr)
  82     {
  83         pFont->SetOutline(static_cast< const SvxContourItem*>(pItem)->GetValue());
  84     }
  85     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_SHADOWED)) != nullptr)
  86     {
  87         pFont->SetShadow(static_cast<const SvxShadowedItem*>(pItem)->GetValue());
  88     }
  89     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_RELIEF)) != nullptr)
  90     {
  91         pFont->SetRelief(static_cast<const SvxCharReliefItem*>(pItem)->GetValue());
  92     }
  93     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_UNDERLINE)) != nullptr)
  94     {
  95         pFont->SetUnderline(static_cast< const SvxUnderlineItem*>(pItem)->GetLineStyle());
  96     }
  97     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_OVERLINE)) != nullptr)
  98     {
  99         pFont->SetOverline(static_cast<const SvxOverlineItem*>(pItem)->GetValue());
 100     }
 101     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_STRIKEOUT)) != nullptr)
 102     {
 103         pFont->SetStrikeout(static_cast<const SvxCrossedOutItem*>(pItem)->GetStrikeout());
 104     }
 105     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_CASEMAP)) != nullptr)
 106     {
 107         pFont->SetCaseMap(static_cast<const SvxCaseMapItem*>(pItem)->GetCaseMap());
 108     }
 109     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_EMPHASISMARK)) != nullptr)
 110     {
 111         pFont->SetEmphasisMark(static_cast<const SvxEmphasisMarkItem*>(pItem)->GetEmphasisMark());
 112     }
 113     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_COLOR)) != nullptr)
 114     {
 115         maFontColor = static_cast<const SvxColorItem*>(pItem)->GetValue();
 116     }
 117     if ((pItem = pItemSet->GetItem(SID_ATTR_BRUSH_CHAR)) != nullptr)
 118     {
 119         maHighlightColor = static_cast<const SvxBrushItem*>(pItem)->GetColor();
 120     }
 121
 122     if (mpStyle->GetFamily() == SfxStyleFamily::Para)
 123     {
 124         if ((pItem = pItemSet->GetItem(XATTR_FILLSTYLE)) != nullptr)
 125         {
 126             css::drawing::FillStyle aFillStyle = static_cast<const XFillStyleItem*>(pItem)->GetValue();
 127             if (aFillStyle == drawing::FillStyle_SOLID)
 128             {
 129                 if ((pItem = pItemSet->GetItem(XATTR_FILLCOLOR)) != nullptr)
 130                 {
 131                     maBackgroundColor = static_cast<const XFillColorItem*>(pItem)->GetColorValue();
 132                 }
 133             }
 134         }
 135     }
 136
 137     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_FONT)) != nullptr)
 138     {
 139         const SvxFontItem* pFontItem = static_cast<const SvxFontItem*>(pItem);
 140         if (IsStarSymbol(pFontItem->GetFamilyName()))
 141             return false;
 142         pFont->SetFamilyName(pFontItem->GetFamilyName());
 143         pFont->SetStyleName(pFontItem->GetStyleName());
 144     }
 145     else
 146     {
 147         return false;
 148     }
 149
 150     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_FONTHEIGHT)) != nullptr)
 151     {
 152         const SvxFontHeightItem* pFontHeightItem = static_cast<const SvxFontHeightItem*>(pItem);
 153         Size aFontSize(0, pFontHeightItem->GetHeight());
 154         maPixelSize = mrOutputDev.LogicToPixel(aFontSize, MapMode(mrShell.GetMapUnit()));
 155         pFont->SetFontSize(maPixelSize);
 156
 157         vcl::Font aOldFont(mrOutputDev.GetFont());
 158
 159         mrOutputDev.SetFont(*pFont);
 160         tools::Rectangle aTextRect;
 161         mrOutputDev.GetTextBoundRect(aTextRect, mpStyle->GetName());
 162         if (aTextRect.Bottom() > mnMaxHeight)
 163         {
 164             double ratio = double(mnMaxHeight) / aTextRect.Bottom();
 165             maPixelSize.setWidth( maPixelSize.Width() * ratio );
 166             maPixelSize.setHeight( maPixelSize.Height() * ratio );
 167             pFont->SetFontSize(maPixelSize);
 168         }
 169         mrOutputDev.SetFont(aOldFont);
 170     }
 171     else
 172     {
 173         return false;
 174     }
 175
 176     m_pFont = std::move(pFont);
 177     maPixelSize = getRenderSize();
 178     return true;
 179 }
 180
 181 Size CommonStylePreviewRenderer::getRenderSize() const
 182 {
 183     assert(m_pFont);
 184     Size aPixelSize = m_pFont->GetTextSize(mrOutputDev, maStyleName);
 185
 186     if (aPixelSize.Height() > mnMaxHeight)
 187         aPixelSize.setHeight( mnMaxHeight );
 188
 189     return aPixelSize;
 190 }
 191
 192 bool CommonStylePreviewRenderer::render(const tools::Rectangle& aRectangle, RenderAlign eRenderAlign)
 193 {
 194     const OUString& rText = maStyleName;
 195
 196     // setup the device & draw
 197     mrOutputDev.Push(PushFlags::FONT | PushFlags::TEXTCOLOR | PushFlags::FILLCOLOR | PushFlags::TEXTFILLCOLOR);
 198
 199     if (maBackgroundColor != COL_AUTO)
 200     {
 201         mrOutputDev.SetFillColor(maBackgroundColor);
 202         mrOutputDev.DrawRect(aRectangle);
 203     }
 204
 205     if (m_pFont)
 206         mrOutputDev.SetFont(*m_pFont);
 207
 208     if (maFontColor != COL_AUTO)
 209         mrOutputDev.SetTextColor(maFontColor);
 210
 211     if (maHighlightColor != COL_AUTO)
 212         mrOutputDev.SetTextFillColor(maHighlightColor);
 213
 214     Size aPixelSize(m_pFont ? maPixelSize : mrOutputDev.GetFont().GetFontSize());
 215
 216     Point aFontDrawPosition = aRectangle.TopLeft();
 217     if (eRenderAlign == RenderAlign::CENTER)
 218     {
 219         if (aRectangle.GetHeight() > aPixelSize.Height())
 220             aFontDrawPosition.AdjustY((aRectangle.GetHeight() - aPixelSize.Height()) / 2 );
 221     }
 222
 223     mrOutputDev.DrawText(aFontDrawPosition, rText);
 224
 225     mrOutputDev.Pop();
 226
 227     return true;
 228 }
 229
 230 } // end svx namespace
 231
 232 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */