| // Copyright 2017 PDFium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com |
| |
| #include "xfa/fxfa/cxfa_textlayout.h" |
| |
| #include <algorithm> |
| #include <utility> |
| |
| #include "core/fxcrt/css/cfx_csscomputedstyle.h" |
| #include "core/fxcrt/css/cfx_cssstyleselector.h" |
| #include "core/fxcrt/xml/cfx_xmlelement.h" |
| #include "core/fxcrt/xml/cfx_xmlnode.h" |
| #include "core/fxcrt/xml/cfx_xmltext.h" |
| #include "core/fxge/cfx_graphstatedata.h" |
| #include "core/fxge/cfx_pathdata.h" |
| #include "third_party/base/ptr_util.h" |
| #include "third_party/base/stl_util.h" |
| #include "xfa/fde/cfde_textout.h" |
| #include "xfa/fxfa/cxfa_linkuserdata.h" |
| #include "xfa/fxfa/cxfa_loadercontext.h" |
| #include "xfa/fxfa/cxfa_pieceline.h" |
| #include "xfa/fxfa/cxfa_textparsecontext.h" |
| #include "xfa/fxfa/cxfa_textpiece.h" |
| #include "xfa/fxfa/cxfa_textprovider.h" |
| #include "xfa/fxfa/cxfa_texttabstopscontext.h" |
| #include "xfa/fxfa/cxfa_textuserdata.h" |
| #include "xfa/fxfa/parser/cxfa_font.h" |
| #include "xfa/fxfa/parser/cxfa_node.h" |
| #include "xfa/fxfa/parser/cxfa_para.h" |
| |
| #define XFA_LOADERCNTXTFLG_FILTERSPACE 0x001 |
| |
| CXFA_TextLayout::CXFA_TextLayout(CXFA_TextProvider* pTextProvider) |
| : m_bHasBlock(false), |
| m_pTextProvider(pTextProvider), |
| m_pTextDataNode(nullptr), |
| m_bRichText(false), |
| m_iLines(0), |
| m_fMaxWidth(0), |
| m_bBlockContinue(true) { |
| ASSERT(m_pTextProvider); |
| } |
| |
| CXFA_TextLayout::~CXFA_TextLayout() { |
| m_textParser.Reset(); |
| Unload(); |
| } |
| |
| void CXFA_TextLayout::Unload() { |
| m_pieceLines.clear(); |
| m_pBreak.reset(); |
| } |
| |
| void CXFA_TextLayout::GetTextDataNode() { |
| if (!m_pTextProvider) |
| return; |
| |
| CXFA_Node* pNode = m_pTextProvider->GetTextNode(m_bRichText); |
| if (pNode && m_bRichText) |
| m_textParser.Reset(); |
| |
| m_pTextDataNode = pNode; |
| } |
| |
| CFX_XMLNode* CXFA_TextLayout::GetXMLContainerNode() { |
| if (!m_bRichText) |
| return nullptr; |
| |
| CFX_XMLNode* pXMLRoot = m_pTextDataNode->GetXMLMappingNode(); |
| if (!pXMLRoot) |
| return nullptr; |
| |
| CFX_XMLNode* pXMLContainer = nullptr; |
| for (CFX_XMLNode* pXMLChild = pXMLRoot->GetNodeItem(CFX_XMLNode::FirstChild); |
| pXMLChild; |
| pXMLChild = pXMLChild->GetNodeItem(CFX_XMLNode::NextSibling)) { |
| if (pXMLChild->GetType() == FX_XMLNODE_Element) { |
| CFX_XMLElement* pXMLElement = static_cast<CFX_XMLElement*>(pXMLChild); |
| WideString wsTag = pXMLElement->GetLocalTagName(); |
| if (wsTag == L"body" || wsTag == L"html") { |
| pXMLContainer = pXMLChild; |
| break; |
| } |
| } |
| } |
| return pXMLContainer; |
| } |
| |
| std::unique_ptr<CFX_RTFBreak> CXFA_TextLayout::CreateBreak(bool bDefault) { |
| uint32_t dwStyle = FX_LAYOUTSTYLE_ExpandTab; |
| if (!bDefault) |
| dwStyle |= FX_LAYOUTSTYLE_Pagination; |
| |
| auto pBreak = pdfium::MakeUnique<CFX_RTFBreak>(dwStyle); |
| pBreak->SetLineBreakTolerance(1); |
| pBreak->SetFont(m_textParser.GetFont(m_pTextProvider, nullptr)); |
| pBreak->SetFontSize(m_textParser.GetFontSize(m_pTextProvider, nullptr)); |
| return pBreak; |
| } |
| |
| void CXFA_TextLayout::InitBreak(float fLineWidth) { |
| CXFA_Font font = m_pTextProvider->GetFontNode(); |
| CXFA_Para para = m_pTextProvider->GetParaNode(); |
| float fStart = 0; |
| float fStartPos = 0; |
| if (para) { |
| CFX_RTFLineAlignment iAlign = CFX_RTFLineAlignment::Left; |
| switch (para.GetHorizontalAlign()) { |
| case XFA_ATTRIBUTEENUM_Center: |
| iAlign = CFX_RTFLineAlignment::Center; |
| break; |
| case XFA_ATTRIBUTEENUM_Right: |
| iAlign = CFX_RTFLineAlignment::Right; |
| break; |
| case XFA_ATTRIBUTEENUM_Justify: |
| iAlign = CFX_RTFLineAlignment::Justified; |
| break; |
| case XFA_ATTRIBUTEENUM_JustifyAll: |
| iAlign = CFX_RTFLineAlignment::Distributed; |
| break; |
| } |
| m_pBreak->SetAlignment(iAlign); |
| |
| fStart = para.GetMarginLeft(); |
| if (m_pTextProvider->IsCheckButtonAndAutoWidth()) { |
| if (iAlign != CFX_RTFLineAlignment::Left) |
| fLineWidth -= para.GetMarginRight(); |
| } else { |
| fLineWidth -= para.GetMarginRight(); |
| } |
| if (fLineWidth < 0) |
| fLineWidth = fStart; |
| |
| fStartPos = fStart; |
| float fIndent = para.GetTextIndent(); |
| if (fIndent > 0) |
| fStartPos += fIndent; |
| } |
| |
| m_pBreak->SetLineBoundary(fStart, fLineWidth); |
| m_pBreak->SetLineStartPos(fStartPos); |
| if (font) { |
| m_pBreak->SetHorizontalScale((int32_t)font.GetHorizontalScale()); |
| m_pBreak->SetVerticalScale((int32_t)font.GetVerticalScale()); |
| m_pBreak->SetCharSpace(font.GetLetterSpacing()); |
| } |
| |
| float fFontSize = m_textParser.GetFontSize(m_pTextProvider, nullptr); |
| m_pBreak->SetFontSize(fFontSize); |
| m_pBreak->SetFont(m_textParser.GetFont(m_pTextProvider, nullptr)); |
| m_pBreak->SetLineBreakTolerance(fFontSize * 0.2f); |
| } |
| |
| void CXFA_TextLayout::InitBreak(CFX_CSSComputedStyle* pStyle, |
| CFX_CSSDisplay eDisplay, |
| float fLineWidth, |
| CFX_XMLNode* pXMLNode, |
| CFX_CSSComputedStyle* pParentStyle) { |
| if (!pStyle) { |
| InitBreak(fLineWidth); |
| return; |
| } |
| |
| if (eDisplay == CFX_CSSDisplay::Block || |
| eDisplay == CFX_CSSDisplay::ListItem) { |
| CFX_RTFLineAlignment iAlign = CFX_RTFLineAlignment::Left; |
| switch (pStyle->GetTextAlign()) { |
| case CFX_CSSTextAlign::Right: |
| iAlign = CFX_RTFLineAlignment::Right; |
| break; |
| case CFX_CSSTextAlign::Center: |
| iAlign = CFX_RTFLineAlignment::Center; |
| break; |
| case CFX_CSSTextAlign::Justify: |
| iAlign = CFX_RTFLineAlignment::Justified; |
| break; |
| case CFX_CSSTextAlign::JustifyAll: |
| iAlign = CFX_RTFLineAlignment::Distributed; |
| break; |
| default: |
| break; |
| } |
| m_pBreak->SetAlignment(iAlign); |
| |
| float fStart = 0; |
| const CFX_CSSRect* pRect = pStyle->GetMarginWidth(); |
| const CFX_CSSRect* pPaddingRect = pStyle->GetPaddingWidth(); |
| if (pRect) { |
| fStart = pRect->left.GetValue(); |
| fLineWidth -= pRect->right.GetValue(); |
| if (pPaddingRect) { |
| fStart += pPaddingRect->left.GetValue(); |
| fLineWidth -= pPaddingRect->right.GetValue(); |
| } |
| if (eDisplay == CFX_CSSDisplay::ListItem) { |
| const CFX_CSSRect* pParRect = pParentStyle->GetMarginWidth(); |
| const CFX_CSSRect* pParPaddingRect = pParentStyle->GetPaddingWidth(); |
| if (pParRect) { |
| fStart += pParRect->left.GetValue(); |
| fLineWidth -= pParRect->right.GetValue(); |
| if (pParPaddingRect) { |
| fStart += pParPaddingRect->left.GetValue(); |
| fLineWidth -= pParPaddingRect->right.GetValue(); |
| } |
| } |
| CFX_CSSRect pNewRect; |
| pNewRect.left.Set(CFX_CSSLengthUnit::Point, fStart); |
| pNewRect.right.Set(CFX_CSSLengthUnit::Point, pRect->right.GetValue()); |
| pNewRect.top.Set(CFX_CSSLengthUnit::Point, pRect->top.GetValue()); |
| pNewRect.bottom.Set(CFX_CSSLengthUnit::Point, pRect->bottom.GetValue()); |
| pStyle->SetMarginWidth(pNewRect); |
| } |
| } |
| m_pBreak->SetLineBoundary(fStart, fLineWidth); |
| float fIndent = pStyle->GetTextIndent().GetValue(); |
| if (fIndent > 0) |
| fStart += fIndent; |
| |
| m_pBreak->SetLineStartPos(fStart); |
| m_pBreak->SetTabWidth(m_textParser.GetTabInterval(pStyle)); |
| if (!m_pTabstopContext) |
| m_pTabstopContext = pdfium::MakeUnique<CXFA_TextTabstopsContext>(); |
| m_textParser.GetTabstops(pStyle, m_pTabstopContext.get()); |
| for (const auto& stop : m_pTabstopContext->m_tabstops) |
| m_pBreak->AddPositionedTab(stop.fTabstops); |
| } |
| float fFontSize = m_textParser.GetFontSize(m_pTextProvider, pStyle); |
| m_pBreak->SetFontSize(fFontSize); |
| m_pBreak->SetLineBreakTolerance(fFontSize * 0.2f); |
| m_pBreak->SetFont(m_textParser.GetFont(m_pTextProvider, pStyle)); |
| m_pBreak->SetHorizontalScale( |
| m_textParser.GetHorScale(m_pTextProvider, pStyle, pXMLNode)); |
| m_pBreak->SetVerticalScale(m_textParser.GetVerScale(m_pTextProvider, pStyle)); |
| m_pBreak->SetCharSpace(pStyle->GetLetterSpacing().GetValue()); |
| } |
| |
| int32_t CXFA_TextLayout::GetText(WideString& wsText) { |
| GetTextDataNode(); |
| wsText.clear(); |
| if (!m_bRichText) |
| wsText = m_pTextDataNode->GetContent(); |
| return wsText.GetLength(); |
| } |
| |
| float CXFA_TextLayout::GetLayoutHeight() { |
| if (!m_pLoader) |
| return 0; |
| |
| if (m_pLoader->m_lineHeights.empty() && m_pLoader->m_fWidth > 0) { |
| CFX_SizeF szMax(m_pLoader->m_fWidth, m_pLoader->m_fHeight); |
| CFX_SizeF szDef; |
| m_pLoader->m_bSaveLineHeight = true; |
| m_pLoader->m_fLastPos = 0; |
| CalcSize(szMax, szMax, szDef); |
| m_pLoader->m_bSaveLineHeight = false; |
| return szDef.height; |
| } |
| |
| float fHeight = m_pLoader->m_fHeight; |
| if (fHeight < 0.1f) { |
| fHeight = 0; |
| for (float value : m_pLoader->m_lineHeights) |
| fHeight += value; |
| } |
| return fHeight; |
| } |
| |
| float CXFA_TextLayout::StartLayout(float fWidth) { |
| if (!m_pLoader) |
| m_pLoader = pdfium::MakeUnique<CXFA_LoaderContext>(); |
| |
| if (fWidth < 0 || |
| (m_pLoader->m_fWidth > -1 && fabs(fWidth - m_pLoader->m_fWidth) > 0)) { |
| m_pLoader->m_lineHeights.clear(); |
| m_Blocks.clear(); |
| Unload(); |
| m_pLoader->m_fStartLineOffset = 0; |
| } |
| m_pLoader->m_fWidth = fWidth; |
| |
| if (fWidth < 0) { |
| CFX_SizeF szMax; |
| CFX_SizeF szDef; |
| m_pLoader->m_bSaveLineHeight = true; |
| m_pLoader->m_fLastPos = 0; |
| CalcSize(szMax, szMax, szDef); |
| m_pLoader->m_bSaveLineHeight = false; |
| fWidth = szDef.width; |
| } |
| return fWidth; |
| } |
| |
| bool CXFA_TextLayout::DoLayout(int32_t iBlockIndex, |
| float& fCalcHeight, |
| float fContentAreaHeight, |
| float fTextHeight) { |
| if (!m_pLoader) |
| return false; |
| |
| int32_t iBlockCount = pdfium::CollectionSize<int32_t>(m_Blocks); |
| float fHeight = fTextHeight; |
| if (fHeight < 0) |
| fHeight = GetLayoutHeight(); |
| |
| m_pLoader->m_fHeight = fHeight; |
| if (fContentAreaHeight < 0) |
| return false; |
| |
| m_bHasBlock = true; |
| if (iBlockCount == 0 && fHeight > 0) { |
| fHeight = fTextHeight - GetLayoutHeight(); |
| if (fHeight > 0) { |
| int32_t iAlign = m_textParser.GetVAlign(m_pTextProvider); |
| if (iAlign == XFA_ATTRIBUTEENUM_Middle) |
| fHeight /= 2.0f; |
| else if (iAlign != XFA_ATTRIBUTEENUM_Bottom) |
| fHeight = 0; |
| m_pLoader->m_fStartLineOffset = fHeight; |
| } |
| } |
| |
| float fLinePos = m_pLoader->m_fStartLineOffset; |
| int32_t iLineIndex = 0; |
| if (iBlockCount > 1) { |
| if (iBlockCount >= (iBlockIndex + 1) * 2) { |
| iLineIndex = m_Blocks[iBlockIndex * 2]; |
| } else { |
| iLineIndex = m_Blocks[iBlockCount - 1] + m_Blocks[iBlockCount - 2]; |
| } |
| if (!m_pLoader->m_BlocksHeight.empty()) { |
| for (int32_t i = 0; i < iBlockIndex; i++) |
| fLinePos -= m_pLoader->m_BlocksHeight[i * 2 + 1]; |
| } |
| } |
| |
| int32_t iCount = pdfium::CollectionSize<int32_t>(m_pLoader->m_lineHeights); |
| int32_t i = 0; |
| for (i = iLineIndex; i < iCount; i++) { |
| float fLineHeight = m_pLoader->m_lineHeights[i]; |
| if (i == iLineIndex && fLineHeight - fContentAreaHeight > 0.001) { |
| fCalcHeight = 0; |
| return true; |
| } |
| if (fLinePos + fLineHeight - fContentAreaHeight > 0.001) { |
| if (iBlockCount >= (iBlockIndex + 1) * 2) { |
| m_Blocks[iBlockIndex * 2] = iLineIndex; |
| m_Blocks[iBlockIndex * 2 + 1] = i - iLineIndex; |
| } else { |
| m_Blocks.push_back(iLineIndex); |
| m_Blocks.push_back(i - iLineIndex); |
| } |
| if (i == iLineIndex) { |
| if (fCalcHeight <= fLinePos) { |
| if (pdfium::CollectionSize<int32_t>(m_pLoader->m_BlocksHeight) > |
| iBlockIndex * 2 && |
| (m_pLoader->m_BlocksHeight[iBlockIndex * 2] == iBlockIndex)) { |
| m_pLoader->m_BlocksHeight[iBlockIndex * 2 + 1] = fCalcHeight; |
| } else { |
| m_pLoader->m_BlocksHeight.push_back((float)iBlockIndex); |
| m_pLoader->m_BlocksHeight.push_back(fCalcHeight); |
| } |
| } |
| return true; |
| } |
| |
| fCalcHeight = fLinePos; |
| return true; |
| } |
| fLinePos += fLineHeight; |
| } |
| return false; |
| } |
| |
| int32_t CXFA_TextLayout::CountBlocks() const { |
| int32_t iCount = pdfium::CollectionSize<int32_t>(m_Blocks) / 2; |
| return iCount > 0 ? iCount : 1; |
| } |
| |
| bool CXFA_TextLayout::CalcSize(const CFX_SizeF& minSize, |
| const CFX_SizeF& maxSize, |
| CFX_SizeF& defaultSize) { |
| defaultSize.width = maxSize.width; |
| if (defaultSize.width < 1) |
| defaultSize.width = 0xFFFF; |
| |
| m_pBreak = CreateBreak(false); |
| float fLinePos = 0; |
| m_iLines = 0; |
| m_fMaxWidth = 0; |
| Loader(defaultSize, fLinePos, false); |
| if (fLinePos < 0.1f) |
| fLinePos = m_textParser.GetFontSize(m_pTextProvider, nullptr); |
| |
| m_pTabstopContext.reset(); |
| defaultSize = CFX_SizeF(m_fMaxWidth, fLinePos); |
| return true; |
| } |
| |
| bool CXFA_TextLayout::Layout(const CFX_SizeF& size, float* fHeight) { |
| if (size.width < 1) |
| return false; |
| |
| Unload(); |
| m_pBreak = CreateBreak(true); |
| if (m_pLoader) { |
| m_pLoader->m_iTotalLines = -1; |
| m_pLoader->m_iChar = 0; |
| } |
| |
| m_iLines = 0; |
| float fLinePos = 0; |
| Loader(size, fLinePos, true); |
| UpdateAlign(size.height, fLinePos); |
| m_pTabstopContext.reset(); |
| if (fHeight) |
| *fHeight = fLinePos; |
| return true; |
| } |
| |
| bool CXFA_TextLayout::Layout(int32_t iBlock) { |
| if (!m_pLoader || iBlock < 0 || iBlock >= CountBlocks()) |
| return false; |
| if (m_pLoader->m_fWidth < 1) |
| return false; |
| |
| m_pLoader->m_iTotalLines = -1; |
| m_iLines = 0; |
| float fLinePos = 0; |
| CXFA_Node* pNode = nullptr; |
| CFX_SizeF szText(m_pLoader->m_fWidth, m_pLoader->m_fHeight); |
| int32_t iCount = pdfium::CollectionSize<int32_t>(m_Blocks); |
| int32_t iBlocksHeightCount = |
| pdfium::CollectionSize<int32_t>(m_pLoader->m_BlocksHeight); |
| iBlocksHeightCount /= 2; |
| if (iBlock < iBlocksHeightCount) |
| return true; |
| if (iBlock == iBlocksHeightCount) { |
| Unload(); |
| m_pBreak = CreateBreak(true); |
| fLinePos = m_pLoader->m_fStartLineOffset; |
| for (int32_t i = 0; i < iBlocksHeightCount; i++) |
| fLinePos -= m_pLoader->m_BlocksHeight[i * 2 + 1]; |
| |
| m_pLoader->m_iChar = 0; |
| if (iCount > 1) |
| m_pLoader->m_iTotalLines = m_Blocks[iBlock * 2 + 1]; |
| |
| Loader(szText, fLinePos, true); |
| if (iCount == 0 && m_pLoader->m_fStartLineOffset < 0.1f) |
| UpdateAlign(szText.height, fLinePos); |
| } else if (m_pTextDataNode) { |
| iBlock *= 2; |
| if (iBlock < iCount - 2) |
| m_pLoader->m_iTotalLines = m_Blocks[iBlock + 1]; |
| |
| m_pBreak->Reset(); |
| if (m_bRichText) { |
| CFX_XMLNode* pContainerNode = GetXMLContainerNode(); |
| if (!pContainerNode) |
| return true; |
| |
| CFX_XMLNode* pXMLNode = m_pLoader->m_pXMLNode; |
| if (!pXMLNode) |
| return true; |
| |
| CFX_XMLNode* pSaveXMLNode = m_pLoader->m_pXMLNode; |
| for (; pXMLNode; |
| pXMLNode = pXMLNode->GetNodeItem(CFX_XMLNode::NextSibling)) { |
| if (!LoadRichText(pXMLNode, szText, fLinePos, m_pLoader->m_pParentStyle, |
| true, nullptr)) { |
| break; |
| } |
| } |
| while (!pXMLNode) { |
| pXMLNode = pSaveXMLNode->GetNodeItem(CFX_XMLNode::Parent); |
| if (pXMLNode == pContainerNode) |
| break; |
| if (!LoadRichText(pXMLNode, szText, fLinePos, m_pLoader->m_pParentStyle, |
| true, nullptr, false)) { |
| break; |
| } |
| pSaveXMLNode = pXMLNode; |
| pXMLNode = pXMLNode->GetNodeItem(CFX_XMLNode::NextSibling); |
| if (!pXMLNode) |
| continue; |
| for (; pXMLNode; |
| pXMLNode = pXMLNode->GetNodeItem(CFX_XMLNode::NextSibling)) { |
| if (!LoadRichText(pXMLNode, szText, fLinePos, |
| m_pLoader->m_pParentStyle, true, nullptr)) { |
| break; |
| } |
| } |
| } |
| } else { |
| pNode = m_pLoader->m_pNode; |
| if (!pNode) |
| return true; |
| LoadText(pNode, szText, fLinePos, true); |
| } |
| } |
| if (iBlock == iCount) { |
| m_pTabstopContext.reset(); |
| m_pLoader.reset(); |
| } |
| return true; |
| } |
| |
| void CXFA_TextLayout::ItemBlocks(const CFX_RectF& rtText, int32_t iBlockIndex) { |
| if (!m_pLoader) |
| return; |
| |
| int32_t iCountHeight = |
| pdfium::CollectionSize<int32_t>(m_pLoader->m_lineHeights); |
| if (iCountHeight == 0) |
| return; |
| |
| bool bEndItem = true; |
| int32_t iBlockCount = pdfium::CollectionSize<int32_t>(m_Blocks); |
| float fLinePos = m_pLoader->m_fStartLineOffset; |
| int32_t iLineIndex = 0; |
| if (iBlockIndex > 0) { |
| int32_t iBlockHeightCount = |
| pdfium::CollectionSize<int32_t>(m_pLoader->m_BlocksHeight); |
| iBlockHeightCount /= 2; |
| if (iBlockHeightCount >= iBlockIndex) { |
| for (int32_t i = 0; i < iBlockIndex; i++) |
| fLinePos -= m_pLoader->m_BlocksHeight[i * 2 + 1]; |
| } else { |
| fLinePos = 0; |
| } |
| iLineIndex = m_Blocks[iBlockCount - 1] + m_Blocks[iBlockCount - 2]; |
| } |
| |
| int32_t i = 0; |
| for (i = iLineIndex; i < iCountHeight; i++) { |
| float fLineHeight = m_pLoader->m_lineHeights[i]; |
| if (fLinePos + fLineHeight - rtText.height > 0.001) { |
| m_Blocks.push_back(iLineIndex); |
| m_Blocks.push_back(i - iLineIndex); |
| bEndItem = false; |
| break; |
| } |
| fLinePos += fLineHeight; |
| } |
| if (iCountHeight > 0 && (i - iLineIndex) > 0 && bEndItem) { |
| m_Blocks.push_back(iLineIndex); |
| m_Blocks.push_back(i - iLineIndex); |
| } |
| } |
| |
| bool CXFA_TextLayout::DrawString(CFX_RenderDevice* pFxDevice, |
| const CFX_Matrix& tmDoc2Device, |
| const CFX_RectF& rtClip, |
| int32_t iBlock) { |
| if (!pFxDevice) |
| return false; |
| |
| pFxDevice->SaveState(); |
| pFxDevice->SetClip_Rect(rtClip); |
| |
| if (m_pieceLines.empty()) { |
| int32_t iBlockCount = CountBlocks(); |
| for (int32_t i = 0; i < iBlockCount; i++) |
| Layout(i); |
| } |
| |
| FXTEXT_CHARPOS* pCharPos = nullptr; |
| int32_t iCharCount = 0; |
| int32_t iLineStart = 0; |
| int32_t iPieceLines = pdfium::CollectionSize<int32_t>(m_pieceLines); |
| int32_t iCount = pdfium::CollectionSize<int32_t>(m_Blocks); |
| if (iCount > 0) { |
| iBlock *= 2; |
| if (iBlock < iCount) { |
| iLineStart = m_Blocks[iBlock]; |
| iPieceLines = m_Blocks[iBlock + 1]; |
| } else { |
| iPieceLines = 0; |
| } |
| } |
| |
| for (int32_t i = 0; i < iPieceLines; i++) { |
| if (i + iLineStart >= pdfium::CollectionSize<int32_t>(m_pieceLines)) |
| break; |
| |
| CXFA_PieceLine* pPieceLine = m_pieceLines[i + iLineStart].get(); |
| int32_t iPieces = pdfium::CollectionSize<int32_t>(pPieceLine->m_textPieces); |
| int32_t j = 0; |
| for (j = 0; j < iPieces; j++) { |
| const CXFA_TextPiece* pPiece = pPieceLine->m_textPieces[j].get(); |
| int32_t iChars = pPiece->iChars; |
| if (iCharCount < iChars) { |
| FX_Free(pCharPos); |
| pCharPos = FX_Alloc(FXTEXT_CHARPOS, iChars); |
| iCharCount = iChars; |
| } |
| memset(pCharPos, 0, iCharCount * sizeof(FXTEXT_CHARPOS)); |
| RenderString(pFxDevice, pPieceLine, j, pCharPos, tmDoc2Device); |
| } |
| for (j = 0; j < iPieces; j++) |
| RenderPath(pFxDevice, pPieceLine, j, pCharPos, tmDoc2Device); |
| } |
| pFxDevice->RestoreState(false); |
| FX_Free(pCharPos); |
| return iPieceLines > 0; |
| } |
| |
| void CXFA_TextLayout::UpdateAlign(float fHeight, float fBottom) { |
| fHeight -= fBottom; |
| if (fHeight < 0.1f) |
| return; |
| |
| switch (m_textParser.GetVAlign(m_pTextProvider)) { |
| case XFA_ATTRIBUTEENUM_Middle: |
| fHeight /= 2.0f; |
| break; |
| case XFA_ATTRIBUTEENUM_Bottom: |
| break; |
| default: |
| return; |
| } |
| |
| for (const auto& pPieceLine : m_pieceLines) { |
| for (const auto& pPiece : pPieceLine->m_textPieces) |
| pPiece->rtPiece.top += fHeight; |
| } |
| } |
| |
| bool CXFA_TextLayout::Loader(const CFX_SizeF& szText, |
| float& fLinePos, |
| bool bSavePieces) { |
| GetTextDataNode(); |
| if (!m_pTextDataNode) |
| return true; |
| |
| if (m_bRichText) { |
| CFX_XMLNode* pXMLContainer = GetXMLContainerNode(); |
| if (pXMLContainer) { |
| if (!m_textParser.IsParsed()) |
| m_textParser.DoParse(pXMLContainer, m_pTextProvider); |
| |
| auto pRootStyle = m_textParser.CreateRootStyle(m_pTextProvider); |
| LoadRichText(pXMLContainer, szText, fLinePos, pRootStyle, bSavePieces, |
| nullptr); |
| } |
| } else { |
| LoadText(m_pTextDataNode, szText, fLinePos, bSavePieces); |
| } |
| return true; |
| } |
| |
| void CXFA_TextLayout::LoadText(CXFA_Node* pNode, |
| const CFX_SizeF& szText, |
| float& fLinePos, |
| bool bSavePieces) { |
| InitBreak(szText.width); |
| |
| CXFA_Para para = m_pTextProvider->GetParaNode(); |
| float fSpaceAbove = 0; |
| if (para) { |
| fSpaceAbove = para.GetSpaceAbove(); |
| if (fSpaceAbove < 0.1f) { |
| fSpaceAbove = 0; |
| } |
| int32_t verAlign = para.GetVerticalAlign(); |
| switch (verAlign) { |
| case XFA_ATTRIBUTEENUM_Top: |
| case XFA_ATTRIBUTEENUM_Middle: |
| case XFA_ATTRIBUTEENUM_Bottom: { |
| fLinePos += fSpaceAbove; |
| break; |
| } |
| } |
| } |
| |
| WideString wsText = pNode->GetContent(); |
| wsText.TrimRight(L" "); |
| bool bRet = AppendChar(wsText, fLinePos, fSpaceAbove, bSavePieces); |
| if (bRet && m_pLoader) |
| m_pLoader->m_pNode = pNode; |
| else |
| EndBreak(CFX_BreakType::Paragraph, fLinePos, bSavePieces); |
| } |
| |
| bool CXFA_TextLayout::LoadRichText( |
| CFX_XMLNode* pXMLNode, |
| const CFX_SizeF& szText, |
| float& fLinePos, |
| const RetainPtr<CFX_CSSComputedStyle>& pParentStyle, |
| bool bSavePieces, |
| RetainPtr<CXFA_LinkUserData> pLinkData, |
| bool bEndBreak, |
| bool bIsOl, |
| int32_t iLiCount) { |
| if (!pXMLNode) |
| return false; |
| |
| CXFA_TextParseContext* pContext = |
| m_textParser.GetParseContextFromMap(pXMLNode); |
| CFX_CSSDisplay eDisplay = CFX_CSSDisplay::None; |
| bool bContentNode = false; |
| float fSpaceBelow = 0; |
| RetainPtr<CFX_CSSComputedStyle> pStyle; |
| WideString wsName; |
| if (bEndBreak) { |
| bool bCurOl = false; |
| bool bCurLi = false; |
| CFX_XMLElement* pElement = nullptr; |
| if (pContext) { |
| if (m_bBlockContinue || |
| (m_pLoader && pXMLNode == m_pLoader->m_pXMLNode)) { |
| m_bBlockContinue = true; |
| } |
| if (pXMLNode->GetType() == FX_XMLNODE_Text) { |
| bContentNode = true; |
| } else if (pXMLNode->GetType() == FX_XMLNODE_Element) { |
| pElement = static_cast<CFX_XMLElement*>(pXMLNode); |
| wsName = pElement->GetLocalTagName(); |
| } |
| if (wsName == L"ol") { |
| bIsOl = true; |
| bCurOl = true; |
| } |
| if (m_bBlockContinue || bContentNode == false) { |
| eDisplay = pContext->GetDisplay(); |
| if (eDisplay != CFX_CSSDisplay::Block && |
| eDisplay != CFX_CSSDisplay::Inline && |
| eDisplay != CFX_CSSDisplay::ListItem) { |
| return true; |
| } |
| |
| pStyle = m_textParser.ComputeStyle(pXMLNode, pParentStyle.Get()); |
| InitBreak(bContentNode ? pParentStyle.Get() : pStyle.Get(), eDisplay, |
| szText.width, pXMLNode, pParentStyle.Get()); |
| if ((eDisplay == CFX_CSSDisplay::Block || |
| eDisplay == CFX_CSSDisplay::ListItem) && |
| pStyle && |
| (wsName.IsEmpty() || (wsName != L"body" && wsName != L"html" && |
| wsName != L"ol" && wsName != L"ul"))) { |
| const CFX_CSSRect* pRect = pStyle->GetMarginWidth(); |
| if (pRect) { |
| fLinePos += pRect->top.GetValue(); |
| fSpaceBelow = pRect->bottom.GetValue(); |
| } |
| } |
| |
| if (wsName == L"a") { |
| ASSERT(pElement); |
| WideString wsLinkContent = pElement->GetString(L"href"); |
| if (!wsLinkContent.IsEmpty()) { |
| pLinkData = pdfium::MakeRetain<CXFA_LinkUserData>( |
| wsLinkContent.GetBuffer(wsLinkContent.GetLength())); |
| wsLinkContent.ReleaseBuffer(wsLinkContent.GetLength()); |
| } |
| } |
| |
| int32_t iTabCount = m_textParser.CountTabs( |
| bContentNode ? pParentStyle.Get() : pStyle.Get()); |
| bool bSpaceRun = m_textParser.IsSpaceRun( |
| bContentNode ? pParentStyle.Get() : pStyle.Get()); |
| WideString wsText; |
| if (bContentNode && iTabCount == 0) { |
| wsText = static_cast<CFX_XMLText*>(pXMLNode)->GetText(); |
| } else if (wsName == L"br") { |
| wsText = L'\n'; |
| } else if (wsName == L"li") { |
| bCurLi = true; |
| if (bIsOl) |
| wsText.Format(L"%d. ", iLiCount); |
| else |
| wsText = 0x00B7 + WideStringView(L" ", 1); |
| } else if (!bContentNode) { |
| if (iTabCount > 0) { |
| while (iTabCount-- > 0) |
| wsText += L'\t'; |
| } else { |
| m_textParser.GetEmbbedObj(m_pTextProvider, pXMLNode, wsText); |
| } |
| } |
| |
| int32_t iLength = wsText.GetLength(); |
| if (iLength > 0 && bContentNode && !bSpaceRun) |
| ProcessText(wsText); |
| |
| if (m_pLoader) { |
| if (wsText.GetLength() > 0 && |
| (m_pLoader->m_dwFlags & XFA_LOADERCNTXTFLG_FILTERSPACE)) { |
| wsText.TrimLeft(0x20); |
| } |
| if (CFX_CSSDisplay::Block == eDisplay) { |
| m_pLoader->m_dwFlags |= XFA_LOADERCNTXTFLG_FILTERSPACE; |
| } else if (CFX_CSSDisplay::Inline == eDisplay && |
| (m_pLoader->m_dwFlags & XFA_LOADERCNTXTFLG_FILTERSPACE)) { |
| m_pLoader->m_dwFlags &= ~XFA_LOADERCNTXTFLG_FILTERSPACE; |
| } else if (wsText.GetLength() > 0 && |
| (0x20 == wsText[wsText.GetLength() - 1])) { |
| m_pLoader->m_dwFlags |= XFA_LOADERCNTXTFLG_FILTERSPACE; |
| } else if (wsText.GetLength() != 0) { |
| m_pLoader->m_dwFlags &= ~XFA_LOADERCNTXTFLG_FILTERSPACE; |
| } |
| } |
| |
| if (wsText.GetLength() > 0) { |
| if (!m_pLoader || m_pLoader->m_iChar == 0) { |
| auto pUserData = pdfium::MakeRetain<CXFA_TextUserData>( |
| bContentNode ? pParentStyle : pStyle, pLinkData); |
| m_pBreak->SetUserData(pUserData); |
| } |
| |
| if (AppendChar(wsText, fLinePos, 0, bSavePieces)) { |
| if (m_pLoader) |
| m_pLoader->m_dwFlags &= ~XFA_LOADERCNTXTFLG_FILTERSPACE; |
| if (IsEnd(bSavePieces)) { |
| if (m_pLoader && m_pLoader->m_iTotalLines > -1) { |
| m_pLoader->m_pXMLNode = pXMLNode; |
| m_pLoader->m_pParentStyle = pParentStyle; |
| } |
| return false; |
| } |
| return true; |
| } |
| } |
| } |
| } |
| |
| for (CFX_XMLNode* pChildNode = |
| pXMLNode->GetNodeItem(CFX_XMLNode::FirstChild); |
| pChildNode; |
| pChildNode = pChildNode->GetNodeItem(CFX_XMLNode::NextSibling)) { |
| if (bCurOl) |
| iLiCount++; |
| |
| if (!LoadRichText(pChildNode, szText, fLinePos, |
| pContext ? pStyle : pParentStyle, bSavePieces, |
| pLinkData, true, bIsOl, iLiCount)) |
| return false; |
| } |
| |
| if (m_pLoader) { |
| if (CFX_CSSDisplay::Block == eDisplay) |
| m_pLoader->m_dwFlags |= XFA_LOADERCNTXTFLG_FILTERSPACE; |
| } |
| if (bCurLi) |
| EndBreak(CFX_BreakType::Line, fLinePos, bSavePieces); |
| } else { |
| if (pContext) |
| eDisplay = pContext->GetDisplay(); |
| } |
| |
| if (m_bBlockContinue) { |
| if (pContext && !bContentNode) { |
| CFX_BreakType dwStatus = (eDisplay == CFX_CSSDisplay::Block) |
| ? CFX_BreakType::Paragraph |
| : CFX_BreakType::Piece; |
| EndBreak(dwStatus, fLinePos, bSavePieces); |
| if (eDisplay == CFX_CSSDisplay::Block) { |
| fLinePos += fSpaceBelow; |
| if (m_pTabstopContext) |
| m_pTabstopContext->RemoveAll(); |
| } |
| if (IsEnd(bSavePieces)) { |
| if (m_pLoader && m_pLoader->m_iTotalLines > -1) { |
| m_pLoader->m_pXMLNode = |
| pXMLNode->GetNodeItem(CFX_XMLNode::NextSibling); |
| m_pLoader->m_pParentStyle = pParentStyle; |
| } |
| return false; |
| } |
| } |
| } |
| return true; |
| } |
| |
| bool CXFA_TextLayout::AppendChar(const WideString& wsText, |
| float& fLinePos, |
| float fSpaceAbove, |
| bool bSavePieces) { |
| CFX_BreakType dwStatus = CFX_BreakType::None; |
| int32_t iChar = 0; |
| if (m_pLoader) |
| iChar = m_pLoader->m_iChar; |
| |
| int32_t iLength = wsText.GetLength(); |
| for (int32_t i = iChar; i < iLength; i++) { |
| wchar_t wch = wsText[i]; |
| if (wch == 0xA0) |
| wch = 0x20; |
| |
| dwStatus = m_pBreak->AppendChar(wch); |
| if (dwStatus != CFX_BreakType::None && dwStatus != CFX_BreakType::Piece) { |
| AppendTextLine(dwStatus, fLinePos, bSavePieces); |
| if (IsEnd(bSavePieces)) { |
| if (m_pLoader) |
| m_pLoader->m_iChar = i; |
| return true; |
| } |
| if (dwStatus == CFX_BreakType::Paragraph && m_bRichText) |
| fLinePos += fSpaceAbove; |
| } |
| } |
| if (m_pLoader) |
| m_pLoader->m_iChar = 0; |
| |
| return false; |
| } |
| |
| bool CXFA_TextLayout::IsEnd(bool bSavePieces) { |
| if (!bSavePieces) |
| return false; |
| if (m_pLoader && m_pLoader->m_iTotalLines > 0) |
| return m_iLines >= m_pLoader->m_iTotalLines; |
| return false; |
| } |
| |
| void CXFA_TextLayout::ProcessText(WideString& wsText) { |
| int32_t iLen = wsText.GetLength(); |
| if (iLen == 0) |
| return; |
| |
| wchar_t* psz = wsText.GetBuffer(iLen); |
| int32_t iTrimLeft = 0; |
| wchar_t wch = 0, wPrev = 0; |
| for (int32_t i = 0; i < iLen; i++) { |
| wch = psz[i]; |
| if (wch < 0x20) |
| wch = 0x20; |
| if (wch == 0x20 && wPrev == 0x20) |
| continue; |
| |
| wPrev = wch; |
| psz[iTrimLeft++] = wch; |
| } |
| wsText.ReleaseBuffer(iLen); |
| wsText = wsText.Left(iTrimLeft); |
| } |
| |
| void CXFA_TextLayout::EndBreak(CFX_BreakType dwStatus, |
| float& fLinePos, |
| bool bSavePieces) { |
| dwStatus = m_pBreak->EndBreak(dwStatus); |
| if (dwStatus != CFX_BreakType::None && dwStatus != CFX_BreakType::Piece) |
| AppendTextLine(dwStatus, fLinePos, bSavePieces, true); |
| } |
| |
| void CXFA_TextLayout::DoTabstops(CFX_CSSComputedStyle* pStyle, |
| CXFA_PieceLine* pPieceLine) { |
| if (!pStyle || !pPieceLine) |
| return; |
| |
| if (!m_pTabstopContext || m_pTabstopContext->m_tabstops.empty()) |
| return; |
| |
| int32_t iPieces = pdfium::CollectionSize<int32_t>(pPieceLine->m_textPieces); |
| if (iPieces == 0) |
| return; |
| |
| CXFA_TextPiece* pPiece = pPieceLine->m_textPieces[iPieces - 1].get(); |
| int32_t& iTabstopsIndex = m_pTabstopContext->m_iTabIndex; |
| int32_t iCount = m_textParser.CountTabs(pStyle); |
| if (!pdfium::IndexInBounds(m_pTabstopContext->m_tabstops, iTabstopsIndex)) |
| return; |
| |
| if (iCount > 0) { |
| iTabstopsIndex++; |
| m_pTabstopContext->m_bTabstops = true; |
| float fRight = 0; |
| if (iPieces > 1) { |
| CXFA_TextPiece* p = pPieceLine->m_textPieces[iPieces - 2].get(); |
| fRight = p->rtPiece.right(); |
| } |
| m_pTabstopContext->m_fTabWidth = |
| pPiece->rtPiece.width + pPiece->rtPiece.left - fRight; |
| } else if (iTabstopsIndex > -1) { |
| float fLeft = 0; |
| if (m_pTabstopContext->m_bTabstops) { |
| uint32_t dwAlign = m_pTabstopContext->m_tabstops[iTabstopsIndex].dwAlign; |
| if (dwAlign == FX_HashCode_GetW(L"center", false)) { |
| fLeft = pPiece->rtPiece.width / 2.0f; |
| } else if (dwAlign == FX_HashCode_GetW(L"right", false) || |
| dwAlign == FX_HashCode_GetW(L"before", false)) { |
| fLeft = pPiece->rtPiece.width; |
| } else if (dwAlign == FX_HashCode_GetW(L"decimal", false)) { |
| int32_t iChars = pPiece->iChars; |
| for (int32_t i = 0; i < iChars; i++) { |
| if (pPiece->szText[i] == L'.') |
| break; |
| |
| fLeft += pPiece->Widths[i] / 20000.0f; |
| } |
| } |
| m_pTabstopContext->m_fLeft = |
| std::min(fLeft, m_pTabstopContext->m_fTabWidth); |
| m_pTabstopContext->m_bTabstops = false; |
| m_pTabstopContext->m_fTabWidth = 0; |
| } |
| pPiece->rtPiece.left -= m_pTabstopContext->m_fLeft; |
| } |
| } |
| |
| void CXFA_TextLayout::AppendTextLine(CFX_BreakType dwStatus, |
| float& fLinePos, |
| bool bSavePieces, |
| bool bEndBreak) { |
| int32_t iPieces = m_pBreak->CountBreakPieces(); |
| if (iPieces < 1) |
| return; |
| |
| RetainPtr<CFX_CSSComputedStyle> pStyle; |
| if (bSavePieces) { |
| auto pNew = pdfium::MakeUnique<CXFA_PieceLine>(); |
| CXFA_PieceLine* pPieceLine = pNew.get(); |
| m_pieceLines.push_back(std::move(pNew)); |
| if (m_pTabstopContext) |
| m_pTabstopContext->Reset(); |
| |
| float fLineStep = 0, fBaseLine = 0; |
| int32_t i = 0; |
| for (i = 0; i < iPieces; i++) { |
| const CFX_BreakPiece* pPiece = m_pBreak->GetBreakPieceUnstable(i); |
| CXFA_TextUserData* pUserData = pPiece->m_pUserData.Get(); |
| if (pUserData) |
| pStyle = pUserData->m_pStyle; |
| float fVerScale = pPiece->m_iVerticalScale / 100.0f; |
| |
| auto pTP = pdfium::MakeUnique<CXFA_TextPiece>(); |
| pTP->iChars = pPiece->m_iChars; |
| pTP->szText = pPiece->GetString(); |
| pTP->Widths = pPiece->GetWidths(); |
| pTP->iBidiLevel = pPiece->m_iBidiLevel; |
| pTP->iHorScale = pPiece->m_iHorizontalScale; |
| pTP->iVerScale = pPiece->m_iVerticalScale; |
| m_textParser.GetUnderline(m_pTextProvider, pStyle.Get(), pTP->iUnderline, |
| pTP->iPeriod); |
| m_textParser.GetLinethrough(m_pTextProvider, pStyle.Get(), |
| pTP->iLineThrough); |
| pTP->dwColor = m_textParser.GetColor(m_pTextProvider, pStyle.Get()); |
| pTP->pFont = m_textParser.GetFont(m_pTextProvider, pStyle.Get()); |
| pTP->fFontSize = m_textParser.GetFontSize(m_pTextProvider, pStyle.Get()); |
| pTP->rtPiece.left = pPiece->m_iStartPos / 20000.0f; |
| pTP->rtPiece.width = pPiece->m_iWidth / 20000.0f; |
| pTP->rtPiece.height = (float)pPiece->m_iFontSize * fVerScale / 20.0f; |
| float fBaseLineTemp = |
| m_textParser.GetBaseline(m_pTextProvider, pStyle.Get()); |
| pTP->rtPiece.top = fBaseLineTemp; |
| |
| float fLineHeight = m_textParser.GetLineHeight( |
| m_pTextProvider, pStyle.Get(), m_iLines == 0, fVerScale); |
| if (fBaseLineTemp > 0) { |
| float fLineHeightTmp = fBaseLineTemp + pTP->rtPiece.height; |
| if (fLineHeight < fLineHeightTmp) |
| fLineHeight = fLineHeightTmp; |
| else |
| fBaseLineTemp = 0; |
| } else if (fBaseLine < -fBaseLineTemp) { |
| fBaseLine = -fBaseLineTemp; |
| } |
| fLineStep = std::max(fLineStep, fLineHeight); |
| pTP->pLinkData = pUserData ? pUserData->m_pLinkData : nullptr; |
| pPieceLine->m_textPieces.push_back(std::move(pTP)); |
| DoTabstops(pStyle.Get(), pPieceLine); |
| } |
| for (const auto& pTP : pPieceLine->m_textPieces) { |
| float& fTop = pTP->rtPiece.top; |
| float fBaseLineTemp = fTop; |
| fTop = fLinePos + fLineStep - pTP->rtPiece.height - fBaseLineTemp; |
| fTop = std::max(0.0f, fTop); |
| } |
| fLinePos += fLineStep + fBaseLine; |
| } else { |
| float fLineStep = 0; |
| float fLineWidth = 0; |
| for (int32_t i = 0; i < iPieces; i++) { |
| const CFX_BreakPiece* pPiece = m_pBreak->GetBreakPieceUnstable(i); |
| CXFA_TextUserData* pUserData = pPiece->m_pUserData.Get(); |
| if (pUserData) |
| pStyle = pUserData->m_pStyle; |
| float fVerScale = pPiece->m_iVerticalScale / 100.0f; |
| float fBaseLine = m_textParser.GetBaseline(m_pTextProvider, pStyle.Get()); |
| float fLineHeight = m_textParser.GetLineHeight( |
| m_pTextProvider, pStyle.Get(), m_iLines == 0, fVerScale); |
| if (fBaseLine > 0) { |
| float fLineHeightTmp = |
| fBaseLine + (float)pPiece->m_iFontSize * fVerScale / 20.0f; |
| if (fLineHeight < fLineHeightTmp) { |
| fLineHeight = fLineHeightTmp; |
| } |
| } |
| fLineStep = std::max(fLineStep, fLineHeight); |
| fLineWidth += pPiece->m_iWidth / 20000.0f; |
| } |
| fLinePos += fLineStep; |
| m_fMaxWidth = std::max(m_fMaxWidth, fLineWidth); |
| if (m_pLoader && m_pLoader->m_bSaveLineHeight) { |
| float fHeight = fLinePos - m_pLoader->m_fLastPos; |
| m_pLoader->m_fLastPos = fLinePos; |
| m_pLoader->m_lineHeights.push_back(fHeight); |
| } |
| } |
| |
| m_pBreak->ClearBreakPieces(); |
| if (dwStatus == CFX_BreakType::Paragraph) { |
| m_pBreak->Reset(); |
| if (!pStyle && bEndBreak) { |
| CXFA_Para para = m_pTextProvider->GetParaNode(); |
| if (para) { |
| float fStartPos = para.GetMarginLeft(); |
| float fIndent = para.GetTextIndent(); |
| if (fIndent > 0) |
| fStartPos += fIndent; |
| |
| float fSpaceBelow = para.GetSpaceBelow(); |
| if (fSpaceBelow < 0.1f) |
| fSpaceBelow = 0; |
| |
| m_pBreak->SetLineStartPos(fStartPos); |
| fLinePos += fSpaceBelow; |
| } |
| } |
| } |
| |
| if (pStyle) { |
| float fStart = 0; |
| const CFX_CSSRect* pRect = pStyle->GetMarginWidth(); |
| if (pRect) |
| fStart = pRect->left.GetValue(); |
| |
| float fTextIndent = pStyle->GetTextIndent().GetValue(); |
| if (fTextIndent < 0) |
| fStart -= fTextIndent; |
| |
| m_pBreak->SetLineStartPos(fStart); |
| } |
| m_iLines++; |
| } |
| |
| void CXFA_TextLayout::RenderString(CFX_RenderDevice* pDevice, |
| CXFA_PieceLine* pPieceLine, |
| int32_t iPiece, |
| FXTEXT_CHARPOS* pCharPos, |
| const CFX_Matrix& tmDoc2Device) { |
| const CXFA_TextPiece* pPiece = pPieceLine->m_textPieces[iPiece].get(); |
| int32_t iCount = GetDisplayPos(pPiece, pCharPos); |
| if (iCount > 0) { |
| CFDE_TextOut::DrawString(pDevice, pPiece->dwColor, pPiece->pFont, pCharPos, |
| iCount, pPiece->fFontSize, &tmDoc2Device); |
| } |
| pPieceLine->m_charCounts.push_back(iCount); |
| } |
| |
| void CXFA_TextLayout::RenderPath(CFX_RenderDevice* pDevice, |
| CXFA_PieceLine* pPieceLine, |
| int32_t iPiece, |
| FXTEXT_CHARPOS* pCharPos, |
| const CFX_Matrix& tmDoc2Device) { |
| CXFA_TextPiece* pPiece = pPieceLine->m_textPieces[iPiece].get(); |
| bool bNoUnderline = pPiece->iUnderline < 1 || pPiece->iUnderline > 2; |
| bool bNoLineThrough = pPiece->iLineThrough < 1 || pPiece->iLineThrough > 2; |
| if (bNoUnderline && bNoLineThrough) |
| return; |
| |
| CFX_PathData path; |
| int32_t iChars = GetDisplayPos(pPiece, pCharPos); |
| if (iChars > 0) { |
| CFX_PointF pt1, pt2; |
| float fEndY = pCharPos[0].m_Origin.y + 1.05f; |
| if (pPiece->iPeriod == XFA_ATTRIBUTEENUM_Word) { |
| for (int32_t i = 0; i < pPiece->iUnderline; i++) { |
| for (int32_t j = 0; j < iChars; j++) { |
| pt1.x = pCharPos[j].m_Origin.x; |
| pt2.x = |
| pt1.x + pCharPos[j].m_FontCharWidth * pPiece->fFontSize / 1000.0f; |
| pt1.y = pt2.y = fEndY; |
| path.AppendLine(pt1, pt2); |
| } |
| fEndY += 2.0f; |
| } |
| } else { |
| pt1.x = pCharPos[0].m_Origin.x; |
| pt2.x = |
| pCharPos[iChars - 1].m_Origin.x + |
| pCharPos[iChars - 1].m_FontCharWidth * pPiece->fFontSize / 1000.0f; |
| for (int32_t i = 0; i < pPiece->iUnderline; i++) { |
| pt1.y = pt2.y = fEndY; |
| path.AppendLine(pt1, pt2); |
| fEndY += 2.0f; |
| } |
| } |
| fEndY = pCharPos[0].m_Origin.y - pPiece->rtPiece.height * 0.25f; |
| pt1.x = pCharPos[0].m_Origin.x; |
| pt2.x = pCharPos[iChars - 1].m_Origin.x + |
| pCharPos[iChars - 1].m_FontCharWidth * pPiece->fFontSize / 1000.0f; |
| for (int32_t i = 0; i < pPiece->iLineThrough; i++) { |
| pt1.y = pt2.y = fEndY; |
| path.AppendLine(pt1, pt2); |
| fEndY += 2.0f; |
| } |
| } else { |
| if (bNoLineThrough && |
| (bNoUnderline || pPiece->iPeriod != XFA_ATTRIBUTEENUM_All)) { |
| return; |
| } |
| int32_t iCharsTmp = 0; |
| int32_t iPiecePrev = iPiece; |
| int32_t iPieceNext = iPiece; |
| while (iPiecePrev > 0) { |
| iPiecePrev--; |
| iCharsTmp = pPieceLine->m_charCounts[iPiecePrev]; |
| if (iCharsTmp > 0) |
| break; |
| } |
| if (iCharsTmp == 0) |
| return; |
| |
| iCharsTmp = 0; |
| int32_t iPieces = pdfium::CollectionSize<int32_t>(pPieceLine->m_textPieces); |
| while (iPieceNext < iPieces - 1) { |
| iPieceNext++; |
| iCharsTmp = pPieceLine->m_charCounts[iPieceNext]; |
| if (iCharsTmp > 0) |
| break; |
| } |
| if (iCharsTmp == 0) |
| return; |
| |
| float fOrgX = 0.0f; |
| float fEndX = 0.0f; |
| pPiece = pPieceLine->m_textPieces[iPiecePrev].get(); |
| iChars = GetDisplayPos(pPiece, pCharPos); |
| if (iChars < 1) |
| return; |
| |
| fOrgX = pCharPos[iChars - 1].m_Origin.x + |
| pCharPos[iChars - 1].m_FontCharWidth * pPiece->fFontSize / 1000.0f; |
| pPiece = pPieceLine->m_textPieces[iPieceNext].get(); |
| iChars = GetDisplayPos(pPiece, pCharPos); |
| if (iChars < 1) |
| return; |
| |
| fEndX = pCharPos[0].m_Origin.x; |
| CFX_PointF pt1; |
| CFX_PointF pt2; |
| pt1.x = fOrgX; |
| pt2.x = fEndX; |
| float fEndY = pCharPos[0].m_Origin.y + 1.05f; |
| for (int32_t i = 0; i < pPiece->iUnderline; i++) { |
| pt1.y = fEndY; |
| pt2.y = fEndY; |
| path.AppendLine(pt1, pt2); |
| fEndY += 2.0f; |
| } |
| fEndY = pCharPos[0].m_Origin.y - pPiece->rtPiece.height * 0.25f; |
| for (int32_t i = 0; i < pPiece->iLineThrough; i++) { |
| pt1.y = fEndY; |
| pt2.y = fEndY; |
| path.AppendLine(pt1, pt2); |
| fEndY += 2.0f; |
| } |
| } |
| |
| CFX_GraphStateData graphState; |
| graphState.m_LineCap = CFX_GraphStateData::LineCapButt; |
| graphState.m_LineJoin = CFX_GraphStateData::LineJoinMiter; |
| graphState.m_LineWidth = 1; |
| graphState.m_MiterLimit = 10; |
| graphState.m_DashPhase = 0; |
| pDevice->DrawPath(&path, &tmDoc2Device, &graphState, 0, pPiece->dwColor, 0); |
| } |
| |
| int32_t CXFA_TextLayout::GetDisplayPos(const CXFA_TextPiece* pPiece, |
| FXTEXT_CHARPOS* pCharPos, |
| bool bCharCode) { |
| if (!pPiece) |
| return 0; |
| |
| FX_RTFTEXTOBJ tr; |
| if (!ToRun(pPiece, &tr)) |
| return 0; |
| return m_pBreak->GetDisplayPos(&tr, pCharPos, bCharCode); |
| } |
| |
| bool CXFA_TextLayout::ToRun(const CXFA_TextPiece* pPiece, FX_RTFTEXTOBJ* tr) { |
| int32_t iLength = pPiece->iChars; |
| if (iLength < 1) |
| return false; |
| |
| tr->pStr = pPiece->szText; |
| tr->pFont = pPiece->pFont; |
| tr->pRect = &pPiece->rtPiece; |
| tr->pWidths = pPiece->Widths; |
| tr->iLength = iLength; |
| tr->fFontSize = pPiece->fFontSize; |
| tr->iBidiLevel = pPiece->iBidiLevel; |
| tr->wLineBreakChar = L'\n'; |
| tr->iVerticalScale = pPiece->iVerScale; |
| tr->iHorizontalScale = pPiece->iHorScale; |
| return true; |
| } |
