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 <svx/CommonStylePreviewRenderer.hxx>
  12
  13 #include <sfx2/objsh.hxx>
  14 #include <svl/style.hxx>
  15 #include <svl/itemset.hxx>
  16
  17 #include <com/sun/star/drawing/FillStyle.hpp>
  18 #include <svx/xdef.hxx>
  19 #include <svx/xfillit0.hxx>
  20 #include <svx/xflclit.hxx>
  21 #include <svx/xcolit.hxx>
  22 #include <editeng/fontitem.hxx>
  23 #include <editeng/fhgtitem.hxx>
  24 #include <editeng/boxitem.hxx>
  25 #include <editeng/charreliefitem.hxx>
  26 #include <editeng/contouritem.hxx>
  27 #include <editeng/colritem.hxx>
  28 #include <editeng/crossedoutitem.hxx>
  29 #include <editeng/emphasismarkitem.hxx>
  30 #include <editeng/flstitem.hxx>
  31 #include <editeng/lineitem.hxx>
  32 #include <editeng/postitem.hxx>
  33 #include <editeng/shdditem.hxx>
  34 #include <editeng/udlnitem.hxx>
  35 #include <editeng/wghtitem.hxx>
  36 #include <editeng/svxfont.hxx>
  37 #include <editeng/cmapitem.hxx>
  38
  39 #include <editeng/editids.hrc>
  40
  41 using namespace css;
  42
  43 namespace svx
  44 {
  45
  46 CommonStylePreviewRenderer::CommonStylePreviewRenderer(
  47                                 const SfxObjectShell& rShell, OutputDevice& rOutputDev,
  48                                 SfxStyleSheetBase* pStyle, long nMaxHeight)
  49     : StylePreviewRenderer(rShell, rOutputDev, pStyle, nMaxHeight)
  50     , m_pFont()
  51     , maFontColor(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<FontRelief>(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<FontUnderline>(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 = Color(static_cast<const SvxColorItem*>(pItem)->GetValue());
 116     }
 117
 118     if (mpStyle->GetFamily() == SFX_STYLE_FAMILY_PARA)
 119     {
 120         if ((pItem = pItemSet->GetItem(XATTR_FILLSTYLE)) != nullptr)
 121         {
 122             sal_uInt16 aFillStyle = static_cast<const XFillStyleItem*>(pItem)->GetValue();
 123             if (aFillStyle == drawing::FillStyle_SOLID)
 124             {
 125                 if ((pItem = pItemSet->GetItem(XATTR_FILLCOLOR)) != nullptr)
 126                 {
 127                     maBackgroundColor = Color(static_cast<const XFillColorItem*>(pItem)->GetColorValue());
 128                 }
 129             }
 130         }
 131     }
 132
 133     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_FONT)) != nullptr)
 134     {
 135         const SvxFontItem* pFontItem = static_cast<const SvxFontItem*>(pItem);
 136         pFont->SetName(pFontItem->GetFamilyName());
 137         pFont->SetStyleName(pFontItem->GetStyleName());
 138     }
 139     else
 140     {
 141         return false;
 142     }
 143
 144     if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_FONTHEIGHT)) != nullptr)
 145     {
 146         const SvxFontHeightItem* pFontHeightItem = static_cast<const SvxFontHeightItem*>(pItem);
 147         Size aFontSize(0, pFontHeightItem->GetHeight());
 148         maPixelSize = Size(mrOutputDev.LogicToPixel(aFontSize, mrShell.GetMapUnit()));
 149         pFont->SetSize(maPixelSize);
 150
 151         vcl::Font aOldFont(mrOutputDev.GetFont());
 152
 153         mrOutputDev.SetFont(*pFont);
 154         Rectangle aTextRect;
 155         mrOutputDev.GetTextBoundRect(aTextRect, mpStyle->GetName());
 156         if (aTextRect.Bottom() > mnMaxHeight)
 157         {
 158             double ratio = double(mnMaxHeight) / aTextRect.Bottom();
 159             maPixelSize.Width() *= ratio;
 160             maPixelSize.Height() *= ratio;
 161             pFont->SetSize(maPixelSize);
 162         }
 163         mrOutputDev.SetFont(aOldFont);
 164     }
 165     else
 166     {
 167         return false;
 168     }
 169
 170     m_pFont = std::move(pFont);
 171     return true;
 172 }
 173
 174 Size CommonStylePreviewRenderer::getRenderSize()
 175 {
 176     assert(m_pFont);
 177     maPixelSize = m_pFont->GetTextSize(&mrOutputDev, maStyleName);
 178     if (maPixelSize.Height() > mnMaxHeight)
 179         maPixelSize.Height() = mnMaxHeight;
 180     return maPixelSize;
 181 }
 182
 183 bool CommonStylePreviewRenderer::render(const Rectangle& aRectangle)
 184 {
 185     // setup the device & draw
 186     vcl::Font aOldFont(mrOutputDev.GetFont());
 187     Color aOldColor(mrOutputDev.GetTextColor());
 188     Color aOldFillColor(mrOutputDev.GetFillColor());
 189
 190     if (maBackgroundColor != COL_AUTO)
 191     {
 192         mrOutputDev.SetFillColor(maBackgroundColor);
 193         mrOutputDev.DrawRect(aRectangle);
 194     }
 195
 196     if (m_pFont)
 197     {
 198         mrOutputDev.SetFont(*m_pFont);
 199     }
 200     if (maFontColor != COL_AUTO)
 201         mrOutputDev.SetTextColor(maFontColor);
 202
 203     Size aPixelSize((m_pFont) ? maPixelSize : mrOutputDev.GetFont().GetSize());
 204
 205     Point aFontDrawPosition = aRectangle.TopLeft();
 206     if (aRectangle.GetHeight() > aPixelSize.Height())
 207         aFontDrawPosition.Y() += (aRectangle.GetHeight() - aPixelSize.Height()) / 2;
 208
 209     mrOutputDev.DrawText(aFontDrawPosition, maStyleName);
 210
 211     mrOutputDev.SetFillColor(aOldFillColor);
 212     mrOutputDev.SetTextColor(aOldColor);
 213     mrOutputDev.SetFont(aOldFont);
 214
 215     return true;
 216 }
 217
 218 } // end svx namespace
 219
 220 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */