sw/source/uibase/sidebar/StylePresetsPanel.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 <sal/config.h>
  12
  13 #include "StylePresetsPanel.hxx"
  14
  15 #include <vcl/image.hxx>
  16 #include <vcl/settings.hxx>
  17 #include <vcl/svapp.hxx>
  18 #include <vcl/virdev.hxx>
  19
  20 #include <sfx2/objsh.hxx>
  21 #include <sfx2/StylePreviewRenderer.hxx>
  22
  23 #include <com/sun/star/lang/IllegalArgumentException.hpp>
  24
  25 #include <sfx2/doctempl.hxx>
  26
  27 #include <shellio.hxx>
  28 #include <docsh.hxx>
  29
  30 #include <sfx2/docfile.hxx>
  31
  32 namespace sw::sidebar {
  33
  34 namespace {
  35
  36 void renderPreview(sfx2::StyleManager* pStyleManager, OutputDevice& aOutputDevice,
  37                    std::u16string_view sName, sal_Int32 nHeight, tools::Rectangle const & aRect)
  38 {
  39     SfxStyleSheetBase* pStyleSheet = pStyleManager->Search(sName, SfxStyleFamily::Para);
  40
  41     if (pStyleSheet)
  42     {
  43         std::unique_ptr<sfx2::StylePreviewRenderer> pStylePreviewRenderer
  44             = pStyleManager->CreateStylePreviewRenderer(aOutputDevice, pStyleSheet, nHeight);
  45         pStylePreviewRenderer->recalculate();
  46         pStylePreviewRenderer->render(aRect, sfx2::StylePreviewRenderer::RenderAlign::TOP);
  47     }
  48 }
  49
  50 BitmapEx GenerateStylePreview(SfxObjectShell& rSource, OUString const & aName)
  51 {
  52     sfx2::StyleManager* pStyleManager = rSource.GetStyleManager();
  53
  54     ScopedVclPtrInstance<VirtualDevice> pVirtualDev(*Application::GetDefaultDevice());
  55
  56     float fScalingFactor = pVirtualDev->GetDPIScaleFactor();
  57
  58     sal_Int32 nMargin = 6 * fScalingFactor;
  59
  60     sal_Int32 nPreviewWidth = 144 * fScalingFactor;
  61
  62     sal_Int32 nNameHeight = 16 * fScalingFactor;
  63     sal_Int32 nTitleHeight = 32 * fScalingFactor;
  64     sal_Int32 nHeadingHeight = 24 * fScalingFactor;
  65     sal_Int32 nTextBodyHeight = 16 * fScalingFactor;
  66     sal_Int32 nBottomMargin = 2 * fScalingFactor;
  67
  68     sal_Int32 nNameFontSize = 12 * fScalingFactor;
  69
  70     sal_Int32 nPreviewHeight = nNameHeight + nTitleHeight + nHeadingHeight + nTextBodyHeight + nBottomMargin;
  71
  72     Size aSize(nPreviewWidth, nPreviewHeight);
  73
  74     pVirtualDev->SetOutputSizePixel(aSize);
  75
  76     pVirtualDev->SetLineColor(COL_LIGHTGRAY);
  77     pVirtualDev->SetFillColor();
  78
  79     tools::Long y = 0;
  80     {
  81         pVirtualDev->SetFillColor(COL_LIGHTGRAY);
  82         tools::Rectangle aNameRect(0, y, nPreviewWidth, nNameHeight);
  83         pVirtualDev->DrawRect(aNameRect);
  84
  85         vcl::Font aFont;
  86         aFont.SetFontSize(Size(0, nNameFontSize));
  87
  88         pVirtualDev->SetFont(aFont);
  89
  90         Size aTextSize(pVirtualDev->GetTextWidth(aName), pVirtualDev->GetTextHeight());
  91
  92         Point aPoint((aNameRect.GetWidth()  / 2.0) - (aTextSize.Width()  / 2.0),
  93                      y + (aNameRect.GetHeight() / 2.0) - (aTextSize.Height() / 2.0));
  94
  95         pVirtualDev->DrawText(aPoint, aName);
  96
  97         y += nNameHeight;
  98     }
  99
 100     {
 101         tools::Rectangle aRenderRect(Point(nMargin, y), aSize);
 102         renderPreview(pStyleManager, *pVirtualDev, u"Title", nTitleHeight, aRenderRect);
 103         y += nTitleHeight;
 104     }
 105
 106     {
 107         tools::Rectangle aRenderRect(Point(nMargin, y), aSize);
 108         renderPreview(pStyleManager, *pVirtualDev, u"Heading 1", nHeadingHeight, aRenderRect);
 109         y += nHeadingHeight;
 110     }
 111     {
 112         tools::Rectangle aRenderRect(Point(nMargin, y), aSize);
 113         renderPreview(pStyleManager, *pVirtualDev, u"Body Text", nTextBodyHeight, aRenderRect);
 114     }
 115
 116     return pVirtualDev->GetBitmapEx(Point(), aSize);
 117 }
 118
 119 BitmapEx CreatePreview(OUString const & aUrl, OUString const & aName)
 120 {
 121     if (SfxObjectShell* pObjectShell = SfxObjectShell::Current())
 122     {
 123         SfxMedium aMedium(aUrl, StreamMode::STD_READWRITE);
 124         SfxObjectShellLock xTemplDoc = SfxObjectShell::CreateObjectByFactoryName(pObjectShell->GetFactory().GetFactoryName(), SfxObjectCreateMode::ORGANIZER);
 125         xTemplDoc->DoInitNew();
 126         if (xTemplDoc->LoadFrom(aMedium))
 127             return GenerateStylePreview(*xTemplDoc, aName);
 128     }
 129     return BitmapEx();
 130 }
 131
 132 }
 133
 134 std::unique_ptr<PanelLayout> StylePresetsPanel::Create(weld::Widget* pParent)
 135 {
 136     if (pParent == nullptr)
 137         throw css::lang::IllegalArgumentException("no parent Window given to StylePresetsPanel::Create", nullptr, 0);
 138
 139     return std::make_unique<StylePresetsPanel>(pParent);
 140 }
 141
 142 StylePresetsPanel::StylePresetsPanel(weld::Widget* pParent)
 143     : PanelLayout(pParent, "StylePresetsPanel", "modules/swriter/ui/sidebarstylepresets.ui")
 144     , mxValueSet(new ValueSet(nullptr))
 145     , mxValueSetWin(new weld::CustomWeld(*m_xBuilder, "valueset", *mxValueSet))
 146 {
 147     mxValueSet->SetColCount(2);
 148
 149     mxValueSet->SetColor(Application::GetSettings().GetStyleSettings().GetFaceColor());
 150     mxValueSet->SetDoubleClickHdl(LINK(this, StylePresetsPanel, DoubleClickHdl));
 151
 152     RefreshList();
 153 }
 154
 155 void StylePresetsPanel::RefreshList()
 156 {
 157     SfxDocumentTemplates aTemplates;
 158     sal_uInt16 nCount = aTemplates.GetRegionCount();
 159     for (sal_uInt16 i = 0; i < nCount; ++i)
 160     {
 161         OUString aRegionName(aTemplates.GetFullRegionName(i));
 162         if (aRegionName == "Styles")
 163         {
 164             for (sal_uInt16 j = 0; j < aTemplates.GetCount(i); ++j)
 165             {
 166                 OUString aName = aTemplates.GetName(i,j);
 167                 OUString aURL = aTemplates.GetPath(i,j);
 168                 BitmapEx aPreview = CreatePreview(aURL, aName);
 169                 sal_uInt16 nId = j + 1;
 170                 mxValueSet->InsertItem(nId, Image(aPreview), aName);
 171                 maTemplateEntries.push_back(std::make_unique<TemplateEntry>(aURL));
 172                 mxValueSet->SetItemData(nId, maTemplateEntries.back().get());
 173             }
 174             mxValueSet->SetOptimalSize();
 175         }
 176     }
 177 }
 178
 179 StylePresetsPanel::~StylePresetsPanel()
 180 {
 181 }
 182
 183 IMPL_LINK_NOARG(StylePresetsPanel, DoubleClickHdl, ValueSet*, void)
 184 {
 185     sal_Int32 nItemId = mxValueSet->GetSelectedItemId();
 186     TemplateEntry* pEntry = static_cast<TemplateEntry*>(mxValueSet->GetItemData(nItemId));
 187
 188     if (SwDocShell* pDocSh = static_cast<SwDocShell*>(SfxObjectShell::Current()))
 189     {
 190         SwgReaderOption aOption;
 191         aOption.SetTextFormats(true);
 192         aOption.SetNumRules(true);
 193         pDocSh->LoadStylesFromFile(pEntry->maURL, aOption, false);
 194     }
 195 }
 196
 197 void StylePresetsPanel::NotifyItemUpdate(const sal_uInt16 /*nSId*/,
 198                                          const SfxItemState /*eState*/,
 199                                          const SfxPoolItem* /*pState*/)
 200 {
 201 }
 202
 203 } // end of namespace ::sw::sidebar
 204
 205 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */