99c51ce0e4
Change-Id: I6b8c815fda3a48917467719432071c0716e3e9ab Reviewed-on: https://gerrit.libreoffice.org/c/core/+/127338 Tested-by: Caolán McNamara <caolanm@redhat.com> Reviewed-by: Caolán McNamara <caolanm@redhat.com>
329 lines
10 KiB
C++
329 lines
10 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/.
|
|
*
|
|
* This file incorporates work covered by the following license notice:
|
|
*
|
|
* Licensed to the Apache Software Foundation (ASF) under one or more
|
|
* contributor license agreements. See the NOTICE file distributed
|
|
* with this work for additional information regarding copyright
|
|
* ownership. The ASF licenses this file to you under the Apache
|
|
* License, Version 2.0 (the "License"); you may not use this file
|
|
* except in compliance with the License. You may obtain a copy of
|
|
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
|
|
*/
|
|
|
|
#include <sal/config.h>
|
|
#include <config_features.h>
|
|
|
|
#include <memory>
|
|
|
|
#include <o3tl/safeint.hxx>
|
|
#include <osl/module.h>
|
|
#include <osl/file.h>
|
|
#include <sal/log.hxx>
|
|
|
|
#include <comphelper/windowserrorstring.hxx>
|
|
#include <comphelper/scopeguard.hxx>
|
|
|
|
#include <win/salgdi.h>
|
|
#include <win/saldata.hxx>
|
|
#include <win/wingdiimpl.hxx>
|
|
#include <ImplOutDevData.hxx>
|
|
|
|
#include <win/DWriteTextRenderer.hxx>
|
|
#include <win/scoped_gdi.hxx>
|
|
|
|
#include <sft.hxx>
|
|
#include <sallayout.hxx>
|
|
|
|
#include <cstdio>
|
|
#include <cstdlib>
|
|
|
|
#include <rtl/character.hxx>
|
|
|
|
#include <o3tl/hash_combine.hxx>
|
|
#include <algorithm>
|
|
|
|
#include <shlwapi.h>
|
|
#include <winver.h>
|
|
|
|
TextOutRenderer& TextOutRenderer::get(bool bUseDWrite, bool bRenderingModeNatural)
|
|
{
|
|
SalData* const pSalData = GetSalData();
|
|
|
|
if (!pSalData)
|
|
{ // don't call this after DeInitVCL()
|
|
fprintf(stderr, "TextOutRenderer fatal error: no SalData");
|
|
abort();
|
|
}
|
|
|
|
if (bUseDWrite)
|
|
{
|
|
if (!pSalData->m_pD2DWriteTextOutRenderer
|
|
|| static_cast<D2DWriteTextOutRenderer*>(pSalData->m_pD2DWriteTextOutRenderer.get())
|
|
->GetRenderingModeNatural()
|
|
!= bRenderingModeNatural)
|
|
{
|
|
pSalData->m_pD2DWriteTextOutRenderer.reset(
|
|
new D2DWriteTextOutRenderer(bRenderingModeNatural));
|
|
}
|
|
return *pSalData->m_pD2DWriteTextOutRenderer;
|
|
}
|
|
if (!pSalData->m_pExTextOutRenderer)
|
|
{
|
|
pSalData->m_pExTextOutRenderer.reset(new ExTextOutRenderer);
|
|
}
|
|
return *pSalData->m_pExTextOutRenderer;
|
|
}
|
|
|
|
bool ExTextOutRenderer::operator()(GenericSalLayout const& rLayout, SalGraphics& /*rGraphics*/,
|
|
HDC hDC, bool /*bRenderingModeNatural*/)
|
|
{
|
|
int nStart = 0;
|
|
DevicePoint aPos;
|
|
const GlyphItem* pGlyph;
|
|
const WinFontInstance* pWinFont = static_cast<const WinFontInstance*>(&rLayout.GetFont());
|
|
UINT nTextAlign = GetTextAlign(hDC);
|
|
UINT nCurTextAlign = nTextAlign;
|
|
sal_Int32 nGlyphOffset = -pWinFont->GetTmDescent();
|
|
|
|
while (rLayout.GetNextGlyph(&pGlyph, aPos, nStart))
|
|
{
|
|
wchar_t glyphWStr = pGlyph->glyphId();
|
|
UINT32 nNewTextAlign = nCurTextAlign;
|
|
sal_Int32 nYOffset = 0;
|
|
|
|
if (pWinFont->IsCJKVerticalFont() && pGlyph->IsVertical())
|
|
{
|
|
nNewTextAlign = VTA_CENTER | TA_BOTTOM;
|
|
nYOffset = nGlyphOffset;
|
|
}
|
|
else
|
|
nNewTextAlign = nTextAlign;
|
|
|
|
if (nCurTextAlign != nNewTextAlign)
|
|
SetTextAlign(hDC, nNewTextAlign);
|
|
|
|
ExtTextOutW(hDC, aPos.getX(), aPos.getY() + nYOffset, ETO_GLYPH_INDEX, nullptr, &glyphWStr,
|
|
1, nullptr);
|
|
|
|
nCurTextAlign = nNewTextAlign;
|
|
}
|
|
|
|
if (nCurTextAlign != nTextAlign)
|
|
SetTextAlign(hDC, nTextAlign);
|
|
|
|
return true;
|
|
}
|
|
|
|
std::unique_ptr<GenericSalLayout> WinSalGraphics::GetTextLayout(int nFallbackLevel)
|
|
{
|
|
assert(mpWinFontEntry[nFallbackLevel]);
|
|
if (!mpWinFontEntry[nFallbackLevel])
|
|
return nullptr;
|
|
|
|
assert(mpWinFontEntry[nFallbackLevel]->GetFontFace());
|
|
|
|
mpWinFontEntry[nFallbackLevel]->SetGraphics(this);
|
|
return std::make_unique<GenericSalLayout>(*mpWinFontEntry[nFallbackLevel]);
|
|
}
|
|
|
|
WinFontInstance::WinFontInstance(const WinFontFace& rPFF, const vcl::font::FontSelectPattern& rFSP)
|
|
: LogicalFontInstance(rPFF, rFSP)
|
|
, m_pGraphics(nullptr)
|
|
, m_hFont(nullptr)
|
|
, m_fScale(1.0f)
|
|
, m_bIsCJKVerticalFont(false)
|
|
, m_nTmDescent(0)
|
|
{
|
|
}
|
|
|
|
WinFontInstance::~WinFontInstance()
|
|
{
|
|
if (m_hFont)
|
|
::DeleteFont(m_hFont);
|
|
}
|
|
|
|
bool WinFontInstance::hasHScale() const
|
|
{
|
|
const vcl::font::FontSelectPattern& rPattern = GetFontSelectPattern();
|
|
int nHeight(rPattern.mnHeight);
|
|
int nWidth(rPattern.mnWidth ? rPattern.mnWidth * GetAverageWidthFactor() : nHeight);
|
|
return nWidth != nHeight;
|
|
}
|
|
|
|
float WinFontInstance::getHScale() const
|
|
{
|
|
const vcl::font::FontSelectPattern& rPattern = GetFontSelectPattern();
|
|
int nHeight(rPattern.mnHeight);
|
|
if (!nHeight)
|
|
return 1.0;
|
|
float nWidth(rPattern.mnWidth ? rPattern.mnWidth * GetAverageWidthFactor() : nHeight);
|
|
return nWidth / nHeight;
|
|
}
|
|
|
|
namespace
|
|
{
|
|
struct BlobReference
|
|
{
|
|
hb_blob_t* mpBlob;
|
|
BlobReference(hb_blob_t* pBlob)
|
|
: mpBlob(pBlob)
|
|
{
|
|
hb_blob_reference(mpBlob);
|
|
}
|
|
BlobReference(BlobReference&& other) noexcept
|
|
: mpBlob(other.mpBlob)
|
|
{
|
|
other.mpBlob = nullptr;
|
|
}
|
|
BlobReference& operator=(BlobReference&& other)
|
|
{
|
|
std::swap(mpBlob, other.mpBlob);
|
|
return *this;
|
|
}
|
|
BlobReference(const BlobReference& other) = delete;
|
|
BlobReference& operator=(BlobReference& other) = delete;
|
|
~BlobReference() { hb_blob_destroy(mpBlob); }
|
|
};
|
|
}
|
|
|
|
using BlobCacheKey = std::pair<rtl::Reference<vcl::font::PhysicalFontFace>, hb_tag_t>;
|
|
|
|
namespace
|
|
{
|
|
struct BlobCacheKeyHash
|
|
{
|
|
std::size_t operator()(BlobCacheKey const& rKey) const
|
|
{
|
|
std::size_t seed = 0;
|
|
o3tl::hash_combine(seed, rKey.first.get());
|
|
o3tl::hash_combine(seed, rKey.second);
|
|
return seed;
|
|
}
|
|
};
|
|
}
|
|
|
|
static hb_blob_t* getFontTable(hb_face_t* /*face*/, hb_tag_t nTableTag, void* pUserData)
|
|
{
|
|
static o3tl::lru_map<BlobCacheKey, BlobReference, BlobCacheKeyHash> gCache(50);
|
|
|
|
WinFontInstance* pFont = static_cast<WinFontInstance*>(pUserData);
|
|
HDC hDC = pFont->GetGraphics()->getHDC();
|
|
HFONT hFont = pFont->GetHFONT();
|
|
assert(hDC);
|
|
assert(hFont);
|
|
|
|
BlobCacheKey cacheKey{ rtl::Reference<vcl::font::PhysicalFontFace>(pFont->GetFontFace()),
|
|
nTableTag };
|
|
auto it = gCache.find(cacheKey);
|
|
if (it != gCache.end())
|
|
{
|
|
hb_blob_reference(it->second.mpBlob);
|
|
return it->second.mpBlob;
|
|
}
|
|
|
|
sal_uLong nLength = 0;
|
|
unsigned char* pBuffer = nullptr;
|
|
|
|
HGDIOBJ hOrigFont = SelectObject(hDC, hFont);
|
|
nLength = ::GetFontData(hDC, OSL_NETDWORD(nTableTag), 0, nullptr, 0);
|
|
if (nLength > 0 && nLength != GDI_ERROR)
|
|
{
|
|
pBuffer = new unsigned char[nLength];
|
|
::GetFontData(hDC, OSL_NETDWORD(nTableTag), 0, pBuffer, nLength);
|
|
}
|
|
SelectObject(hDC, hOrigFont);
|
|
|
|
if (!pBuffer)
|
|
{ // Cache also failures.
|
|
gCache.insert({ cacheKey, BlobReference(nullptr) });
|
|
return nullptr;
|
|
}
|
|
|
|
hb_blob_t* pBlob
|
|
= hb_blob_create(reinterpret_cast<const char*>(pBuffer), nLength, HB_MEMORY_MODE_READONLY,
|
|
pBuffer, [](void* data) { delete[] static_cast<unsigned char*>(data); });
|
|
gCache.insert({ cacheKey, BlobReference(pBlob) });
|
|
return pBlob;
|
|
}
|
|
|
|
hb_font_t* WinFontInstance::ImplInitHbFont()
|
|
{
|
|
assert(m_pGraphics);
|
|
hb_font_t* pHbFont = InitHbFont(hb_face_create_for_tables(getFontTable, this, nullptr));
|
|
|
|
// Calculate the AverageWidthFactor, see LogicalFontInstance::GetScale().
|
|
if (GetFontSelectPattern().mnWidth)
|
|
{
|
|
double nUPEM = hb_face_get_upem(hb_font_get_face(pHbFont));
|
|
|
|
LOGFONTW aLogFont;
|
|
GetObjectW(m_hFont, sizeof(LOGFONTW), &aLogFont);
|
|
|
|
// Set the height (font size) to EM to minimize rounding errors.
|
|
aLogFont.lfHeight = -nUPEM;
|
|
// Set width to the default to get the original value in the metrics.
|
|
aLogFont.lfWidth = 0;
|
|
|
|
TEXTMETRICW aFontMetric;
|
|
{
|
|
// Get the font metrics.
|
|
HDC hDC = m_pGraphics->getHDC();
|
|
ScopedSelectedHFONT hFont(hDC, CreateFontIndirectW(&aLogFont));
|
|
GetTextMetricsW(hDC, &aFontMetric);
|
|
}
|
|
|
|
SetAverageWidthFactor(nUPEM / aFontMetric.tmAveCharWidth);
|
|
}
|
|
|
|
return pHbFont;
|
|
}
|
|
|
|
void WinFontInstance::SetGraphics(WinSalGraphics* pGraphics)
|
|
{
|
|
m_pGraphics = pGraphics;
|
|
if (m_hFont)
|
|
return;
|
|
HFONT hOrigFont;
|
|
HDC hDC = m_pGraphics->getHDC();
|
|
std::tie(m_hFont, m_bIsCJKVerticalFont, m_nTmDescent)
|
|
= m_pGraphics->ImplDoSetFont(hDC, GetFontSelectPattern(), GetFontFace(), hOrigFont);
|
|
SelectObject(hDC, hOrigFont);
|
|
}
|
|
|
|
void WinSalGraphics::DrawTextLayout(const GenericSalLayout& rLayout, HDC hDC, bool bUseDWrite,
|
|
bool bRenderingModeNatural)
|
|
{
|
|
TextOutRenderer& render = TextOutRenderer::get(bUseDWrite, bRenderingModeNatural);
|
|
render(rLayout, *this, hDC, bRenderingModeNatural);
|
|
}
|
|
|
|
void WinSalGraphics::DrawTextLayout(const GenericSalLayout& rLayout)
|
|
{
|
|
WinSalGraphicsImplBase* pImpl = dynamic_cast<WinSalGraphicsImplBase*>(mpImpl.get());
|
|
if (!mbPrinter && pImpl->DrawTextLayout(rLayout))
|
|
return; // handled by pImpl
|
|
|
|
HDC hDC = getHDC();
|
|
const WinFontInstance* pWinFont = static_cast<const WinFontInstance*>(&rLayout.GetFont());
|
|
const HFONT hLayoutFont = pWinFont->GetHFONT();
|
|
|
|
const HFONT hOrigFont = ::SelectFont(hDC, hLayoutFont);
|
|
|
|
// DWrite text renderer performs vertical writing better except printing.
|
|
const bool bVerticalScreenText
|
|
= !mbPrinter && rLayout.GetFont().GetFontSelectPattern().mbVertical;
|
|
const bool bRenderingModeNatural = getTextRenderModeForResolutionIndependentLayoutEnabled();
|
|
const bool bUseDWrite = bVerticalScreenText || bRenderingModeNatural;
|
|
DrawTextLayout(rLayout, hDC, bUseDWrite, bRenderingModeNatural);
|
|
|
|
::SelectFont(hDC, hOrigFont);
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|