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libreoffice/svx/source/styles/CommonStylePreviewRenderer.cxx
Daniel Baumann 8e63e14cf6
Adding upstream version 4:25.2.3.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-22 16:20:04 +02:00

430 lines
13 KiB
C++

/* -*- 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/.
*
*/
#include <CommonStylePreviewRenderer.hxx>
#include <sfx2/objsh.hxx>
#include <svl/style.hxx>
#include <svl/itemset.hxx>
#include <svl/itempool.hxx>
#include <vcl/metric.hxx>
#include <vcl/outdev.hxx>
#include <com/sun/star/drawing/FillStyle.hpp>
#include <svx/xdef.hxx>
#include <svx/xfillit0.hxx>
#include <svx/xflclit.hxx>
#include <editeng/brushitem.hxx>
#include <editeng/fontitem.hxx>
#include <editeng/fhgtitem.hxx>
#include <editeng/charreliefitem.hxx>
#include <editeng/contouritem.hxx>
#include <editeng/colritem.hxx>
#include <editeng/crossedoutitem.hxx>
#include <editeng/editeng.hxx>
#include <editeng/emphasismarkitem.hxx>
#include <editeng/postitem.hxx>
#include <editeng/shdditem.hxx>
#include <editeng/udlnitem.hxx>
#include <editeng/wghtitem.hxx>
#include <editeng/svxfont.hxx>
#include <editeng/cmapitem.hxx>
#include <editeng/editids.hrc>
using namespace css;
namespace svx
{
CommonStylePreviewRenderer::CommonStylePreviewRenderer(
const SfxObjectShell& rShell, OutputDevice& rOutputDev,
SfxStyleSheetBase* pStyle, tools::Long nMaxHeight)
: StylePreviewRenderer(rShell, rOutputDev, pStyle, nMaxHeight)
, maFontColor(COL_AUTO)
, maHighlightColor(COL_AUTO)
, maBackgroundColor(COL_AUTO)
, mnHeight(0)
, mnBaseLine(0)
, maStyleName(mpStyle->GetName())
{
}
CommonStylePreviewRenderer::~CommonStylePreviewRenderer()
{}
static bool GetWhich(const SfxItemSet& rSet, sal_uInt16 nSlot, sal_uInt16& rWhich)
{
rWhich = rSet.GetPool()->GetWhichIDFromSlotID(nSlot);
return rSet.GetItemState(rWhich) >= SfxItemState::DEFAULT;
}
static bool SetFont(const SfxItemSet& rSet, sal_uInt16 nSlot, SvxFont& rFont)
{
sal_uInt16 nWhich;
if (GetWhich(rSet, nSlot, nWhich))
{
const auto& rFontItem = static_cast<const SvxFontItem&>(rSet.Get(nWhich));
rFont.SetFamily(rFontItem.GetFamily());
rFont.SetFamilyName(rFontItem.GetFamilyName());
rFont.SetPitch(rFontItem.GetPitch());
rFont.SetCharSet(rFontItem.GetCharSet());
rFont.SetStyleName(rFontItem.GetStyleName());
rFont.SetAlignment(ALIGN_BASELINE);
return true;
}
return false;
}
bool CommonStylePreviewRenderer::SetFontSize(const SfxItemSet& rSet, sal_uInt16 nSlot, SvxFont& rFont)
{
sal_uInt16 nWhich;
if (GetWhich(rSet, nSlot, nWhich))
{
const auto& rFontHeightItem = static_cast<const SvxFontHeightItem&>(rSet.Get(nWhich));
Size aFontSize(0, rFontHeightItem.GetHeight());
aFontSize = mrOutputDev.LogicToPixel(aFontSize, MapMode(mrShell.GetMapUnit()));
rFont.SetFontSize(aFontSize);
mrOutputDev.SetFont(rFont);
FontMetric aMetric(mrOutputDev.GetFontMetric());
return true;
}
return false;
}
bool CommonStylePreviewRenderer::recalculate()
{
m_oFont.reset();
m_oCJKFont.reset();
m_oCTLFont.reset();
std::optional<SfxItemSet> pItemSet(mpStyle->GetItemSetForPreview());
if (!pItemSet) return false;
SvxFont aFont;
SvxFont aCJKFont;
SvxFont aCTLFont;
const SfxPoolItem* pItem;
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_WEIGHT)) != nullptr)
aFont.SetWeight(static_cast<const SvxWeightItem*>(pItem)->GetWeight());
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_CJK_WEIGHT)) != nullptr)
aCJKFont.SetWeight(static_cast<const SvxWeightItem*>(pItem)->GetWeight());
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_CTL_WEIGHT)) != nullptr)
aCTLFont.SetWeight(static_cast<const SvxWeightItem*>(pItem)->GetWeight());
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_POSTURE)) != nullptr)
aFont.SetItalic(static_cast<const SvxPostureItem*>(pItem)->GetPosture());
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_CJK_POSTURE)) != nullptr)
aCJKFont.SetItalic(static_cast<const SvxPostureItem*>(pItem)->GetPosture());
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_CTL_POSTURE)) != nullptr)
aCTLFont.SetItalic(static_cast<const SvxPostureItem*>(pItem)->GetPosture());
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_CONTOUR)) != nullptr)
{
auto aVal = static_cast<const SvxContourItem*>(pItem)->GetValue();
aFont.SetOutline(aVal);
aCJKFont.SetOutline(aVal);
aCTLFont.SetOutline(aVal);
}
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_SHADOWED)) != nullptr)
{
auto aVal = static_cast<const SvxShadowedItem*>(pItem)->GetValue();
aFont.SetShadow(aVal);
aCJKFont.SetShadow(aVal);
aCTLFont.SetShadow(aVal);
}
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_RELIEF)) != nullptr)
{
auto aVal = static_cast<const SvxCharReliefItem*>(pItem)->GetValue();
aFont.SetRelief(aVal);
aCJKFont.SetRelief(aVal);
aCTLFont.SetRelief(aVal);
}
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_UNDERLINE)) != nullptr)
{
auto aVal = static_cast<const SvxUnderlineItem*>(pItem)->GetLineStyle();
aFont.SetUnderline(aVal);
aCJKFont.SetUnderline(aVal);
aCTLFont.SetUnderline(aVal);
}
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_OVERLINE)) != nullptr)
{
auto aVal = static_cast<const SvxOverlineItem*>(pItem)->GetValue();
aFont.SetOverline(aVal);
aCJKFont.SetOverline(aVal);
aCTLFont.SetOverline(aVal);
}
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_STRIKEOUT)) != nullptr)
{
auto aVal = static_cast<const SvxCrossedOutItem*>(pItem)->GetStrikeout();
aFont.SetStrikeout(aVal);
aCJKFont.SetStrikeout(aVal);
aCTLFont.SetStrikeout(aVal);
}
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_CASEMAP)) != nullptr)
{
auto aVal = static_cast<const SvxCaseMapItem*>(pItem)->GetCaseMap();
aFont.SetCaseMap(aVal);
aCJKFont.SetCaseMap(aVal);
aCTLFont.SetCaseMap(aVal);
}
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_EMPHASISMARK)) != nullptr)
{
auto aVal = static_cast<const SvxEmphasisMarkItem*>(pItem)->GetEmphasisMark();
aFont.SetEmphasisMark(aVal);
aCJKFont.SetEmphasisMark(aVal);
aCTLFont.SetEmphasisMark(aVal);
}
if ((pItem = pItemSet->GetItem(SID_ATTR_CHAR_COLOR)) != nullptr)
{
maFontColor = static_cast<const SvxColorItem*>(pItem)->GetValue();
}
if ((pItem = pItemSet->GetItem(SID_ATTR_BRUSH_CHAR)) != nullptr)
{
maHighlightColor = static_cast<const SvxBrushItem*>(pItem)->GetColor();
}
if (mpStyle->GetFamily() == SfxStyleFamily::Para)
{
if ((pItem = pItemSet->GetItem(XATTR_FILLSTYLE)) != nullptr)
{
css::drawing::FillStyle aFillStyle = static_cast<const XFillStyleItem*>(pItem)->GetValue();
if (aFillStyle == drawing::FillStyle_SOLID)
{
if ((pItem = pItemSet->GetItem(XATTR_FILLCOLOR)) != nullptr)
{
maBackgroundColor = static_cast<const XFillColorItem*>(pItem)->GetColorValue();
}
}
}
}
if (SetFont(*pItemSet, SID_ATTR_CHAR_FONT, aFont) &&
SetFontSize(*pItemSet, SID_ATTR_CHAR_FONTHEIGHT, aFont))
m_oFont = aFont;
if (SetFont(*pItemSet, SID_ATTR_CHAR_CJK_FONT, aCJKFont) &&
SetFontSize(*pItemSet, SID_ATTR_CHAR_CJK_FONTHEIGHT, aCJKFont))
m_oCJKFont = aCJKFont;
if (SetFont(*pItemSet, SID_ATTR_CHAR_CTL_FONT, aCTLFont) &&
SetFontSize(*pItemSet, SID_ATTR_CHAR_CTL_FONTHEIGHT, aCTLFont))
m_oCTLFont = aCTLFont;
CheckScript();
CalcRenderSize();
return true;
}
void CommonStylePreviewRenderer::CalcRenderSize()
{
const OUString& rText = maStyleName;
mnBaseLine = 0;
mnHeight = 0;
SvtScriptType aScript;
sal_uInt16 nIdx = 0;
sal_Int32 nStart = 0;
sal_Int32 nEnd;
size_t nCnt = maScriptChanges.size();
if (nCnt)
{
nEnd = maScriptChanges[nIdx].changePos;
aScript = maScriptChanges[nIdx].scriptType;
}
else
{
nEnd = rText.getLength();
aScript = SvtScriptType::LATIN;
}
do
{
auto oFont = (aScript == SvtScriptType::ASIAN) ?
m_oCJKFont :
((aScript == SvtScriptType::COMPLEX) ?
m_oCTLFont :
m_oFont);
mrOutputDev.Push(vcl::PushFlags::FONT);
tools::Long nWidth;
if (oFont)
{
mrOutputDev.SetFont(*oFont);
nWidth = oFont->GetTextSize(mrOutputDev, rText, nStart, nEnd - nStart).Width();
}
else
nWidth = mrOutputDev.GetTextWidth(rText, nStart, nEnd - nStart);
tools::Rectangle aRect;
mrOutputDev.GetTextBoundRect(aRect, rText, nStart, nStart, nEnd - nStart);
mrOutputDev.Pop();
mnBaseLine = std::max(mnBaseLine, -aRect.Top());
mnHeight = std::max(mnHeight, aRect.GetHeight());
if (nIdx >= maScriptChanges.size())
break;
maScriptChanges[nIdx++].textWidth = nWidth;
if (nEnd < rText.getLength() && nIdx < nCnt)
{
nStart = nEnd;
nEnd = maScriptChanges[nIdx].changePos;
aScript = maScriptChanges[nIdx].scriptType;
}
else
break;
}
while(true);
double fRatio = 1;
if (mnHeight > mnMaxHeight && mnHeight != 0)
fRatio = double(mnMaxHeight) / mnHeight;
mnHeight *= fRatio;
mnBaseLine *= fRatio;
if (fRatio != 1)
{
Size aFontSize;
if (m_oFont)
{
aFontSize = m_oFont->GetFontSize();
m_oFont->SetFontSize(Size(aFontSize.Width() * fRatio, aFontSize.Height() * fRatio));
}
if (m_oCJKFont)
{
aFontSize = m_oCJKFont->GetFontSize();
m_oCJKFont->SetFontSize(Size(aFontSize.Width() * fRatio, aFontSize.Height() * fRatio));
}
if (m_oCTLFont)
{
aFontSize = m_oCTLFont->GetFontSize();
m_oCTLFont->SetFontSize(Size(aFontSize.Width() * fRatio, aFontSize.Height() * fRatio));
}
for (auto& aChange : maScriptChanges)
aChange.textWidth *= fRatio;
}
}
bool CommonStylePreviewRenderer::render(const tools::Rectangle& aRectangle, RenderAlign eRenderAlign)
{
const OUString& rText = maStyleName;
// setup the device & draw
mrOutputDev.Push(vcl::PushFlags::FONT | vcl::PushFlags::TEXTCOLOR | vcl::PushFlags::FILLCOLOR | vcl::PushFlags::TEXTFILLCOLOR);
if (maBackgroundColor != COL_AUTO)
{
mrOutputDev.SetFillColor(maBackgroundColor);
mrOutputDev.DrawRect(aRectangle);
}
Point aFontDrawPosition = aRectangle.TopLeft();
aFontDrawPosition.AdjustY(mnBaseLine);
if (eRenderAlign == RenderAlign::CENTER)
{
if (aRectangle.GetHeight() > mnHeight)
aFontDrawPosition.AdjustY((aRectangle.GetHeight() - mnHeight) / 2 );
}
SvtScriptType aScript;
sal_uInt16 nIdx = 0;
sal_Int32 nStart = 0;
sal_Int32 nEnd;
size_t nCnt = maScriptChanges.size();
if (nCnt)
{
nEnd = maScriptChanges[nIdx].changePos;
aScript = maScriptChanges[nIdx].scriptType;
}
else
{
nEnd = rText.getLength();
aScript = SvtScriptType::LATIN;
}
do
{
auto oFont = (aScript == SvtScriptType::ASIAN)
? m_oCJKFont
: ((aScript == SvtScriptType::COMPLEX)
? m_oCTLFont
: m_oFont);
mrOutputDev.Push(vcl::PushFlags::FONT);
if (oFont)
mrOutputDev.SetFont(*oFont);
if (maFontColor != COL_AUTO)
mrOutputDev.SetTextColor(maFontColor);
if (maHighlightColor != COL_AUTO)
mrOutputDev.SetTextFillColor(maHighlightColor);
if (oFont)
oFont->QuickDrawText(&mrOutputDev, aFontDrawPosition, rText, nStart, nEnd - nStart, {});
else
mrOutputDev.DrawText(aFontDrawPosition, rText, nStart, nEnd - nStart);
mrOutputDev.Pop();
aFontDrawPosition.AdjustX(maScriptChanges[nIdx++].textWidth);
if (nEnd < rText.getLength() && nIdx < nCnt)
{
nStart = nEnd;
nEnd = maScriptChanges[nIdx].changePos;
aScript = maScriptChanges[nIdx].scriptType;
}
else
break;
}
while(true);
mrOutputDev.Pop();
return true;
}
void CommonStylePreviewRenderer::CheckScript()
{
assert(!maStyleName.isEmpty()); // must have a preview text here!
if (maStyleName == maScriptText)
return; // already initialized
maScriptText = maStyleName;
maScriptChanges.clear();
auto aEditEngine = EditEngine(nullptr);
aEditEngine.SetText(maScriptText);
auto aScript = aEditEngine.GetScriptType({ 0, 0, 0, 0 });
for (sal_Int32 i = 1; i <= maScriptText.getLength(); i++)
{
auto aNextScript = aEditEngine.GetScriptType({ 0, i, 0, i });
if (aNextScript != aScript)
maScriptChanges.emplace_back(aScript, i - 1);
if (i == maScriptText.getLength())
maScriptChanges.emplace_back(aScript, i);
aScript = aNextScript;
}
}
} // end svx namespace
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */