summaryrefslogtreecommitdiff
path: root/core/fpdfdoc/csection.cpp
diff options
context:
space:
mode:
authorthestig <thestig@chromium.org>2016-05-13 11:08:41 -0700
committerCommit bot <commit-bot@chromium.org>2016-05-13 11:08:41 -0700
commit9c845c3117bf09191e83e9108e98a82fb1051075 (patch)
tree17a3e44a23d490487927367bcc926e5327ea21c7 /core/fpdfdoc/csection.cpp
parentd6e18875ce024a341e221db689cedf10d433be8d (diff)
downloadpdfium-9c845c3117bf09191e83e9108e98a82fb1051075.tar.xz
Move some classes out of doc_vt.cpp into their own files.
Review-Url: https://codereview.chromium.org/1979463002
Diffstat (limited to 'core/fpdfdoc/csection.cpp')
-rw-r--r--core/fpdfdoc/csection.cpp290
1 files changed, 290 insertions, 0 deletions
diff --git a/core/fpdfdoc/csection.cpp b/core/fpdfdoc/csection.cpp
new file mode 100644
index 0000000000..0cf08fd49b
--- /dev/null
+++ b/core/fpdfdoc/csection.cpp
@@ -0,0 +1,290 @@
+// Copyright 2016 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 "core/fpdfdoc/csection.h"
+
+#include <algorithm>
+
+#include "core/fpdfdoc/cpvt_wordinfo.h"
+
+CSection::CSection(CPDF_VariableText* pVT) : m_pVT(pVT) {}
+
+CSection::~CSection() {
+ ResetAll();
+}
+
+void CSection::ResetAll() {
+ ResetWordArray();
+ ResetLineArray();
+}
+
+void CSection::ResetLineArray() {
+ m_LineArray.RemoveAll();
+}
+
+void CSection::ResetWordArray() {
+ for (int32_t i = 0, sz = m_WordArray.GetSize(); i < sz; i++) {
+ delete m_WordArray.GetAt(i);
+ }
+ m_WordArray.RemoveAll();
+}
+
+void CSection::ResetLinePlace() {
+ for (int32_t i = 0, sz = m_LineArray.GetSize(); i < sz; i++) {
+ if (CLine* pLine = m_LineArray.GetAt(i)) {
+ pLine->LinePlace = CPVT_WordPlace(SecPlace.nSecIndex, i, -1);
+ }
+ }
+}
+
+CPVT_WordPlace CSection::AddWord(const CPVT_WordPlace& place,
+ const CPVT_WordInfo& wordinfo) {
+ CPVT_WordInfo* pWord = new CPVT_WordInfo(wordinfo);
+ int32_t nWordIndex =
+ std::max(std::min(place.nWordIndex, m_WordArray.GetSize()), 0);
+ if (nWordIndex == m_WordArray.GetSize()) {
+ m_WordArray.Add(pWord);
+ } else {
+ m_WordArray.InsertAt(nWordIndex, pWord);
+ }
+ return place;
+}
+
+CPVT_WordPlace CSection::AddLine(const CPVT_LineInfo& lineinfo) {
+ return CPVT_WordPlace(SecPlace.nSecIndex, m_LineArray.Add(lineinfo), -1);
+}
+
+CPVT_FloatRect CSection::Rearrange() {
+ if (m_pVT->m_nCharArray > 0) {
+ return CTypeset(this).CharArray();
+ }
+ return CTypeset(this).Typeset();
+}
+
+CFX_SizeF CSection::GetSectionSize(FX_FLOAT fFontSize) {
+ return CTypeset(this).GetEditSize(fFontSize);
+}
+
+CPVT_WordPlace CSection::GetBeginWordPlace() const {
+ if (CLine* pLine = m_LineArray.GetAt(0)) {
+ return pLine->GetBeginWordPlace();
+ }
+ return SecPlace;
+}
+
+CPVT_WordPlace CSection::GetEndWordPlace() const {
+ if (CLine* pLine = m_LineArray.GetAt(m_LineArray.GetSize() - 1)) {
+ return pLine->GetEndWordPlace();
+ }
+ return SecPlace;
+}
+
+CPVT_WordPlace CSection::GetPrevWordPlace(const CPVT_WordPlace& place) const {
+ if (place.nLineIndex < 0) {
+ return GetBeginWordPlace();
+ }
+ if (place.nLineIndex >= m_LineArray.GetSize()) {
+ return GetEndWordPlace();
+ }
+ if (CLine* pLine = m_LineArray.GetAt(place.nLineIndex)) {
+ if (place.nWordIndex == pLine->m_LineInfo.nBeginWordIndex) {
+ return CPVT_WordPlace(place.nSecIndex, place.nLineIndex, -1);
+ }
+ if (place.nWordIndex < pLine->m_LineInfo.nBeginWordIndex) {
+ if (CLine* pPrevLine = m_LineArray.GetAt(place.nLineIndex - 1)) {
+ return pPrevLine->GetEndWordPlace();
+ }
+ } else {
+ return pLine->GetPrevWordPlace(place);
+ }
+ }
+ return place;
+}
+
+CPVT_WordPlace CSection::GetNextWordPlace(const CPVT_WordPlace& place) const {
+ if (place.nLineIndex < 0) {
+ return GetBeginWordPlace();
+ }
+ if (place.nLineIndex >= m_LineArray.GetSize()) {
+ return GetEndWordPlace();
+ }
+ if (CLine* pLine = m_LineArray.GetAt(place.nLineIndex)) {
+ if (place.nWordIndex >= pLine->m_LineInfo.nEndWordIndex) {
+ if (CLine* pNextLine = m_LineArray.GetAt(place.nLineIndex + 1)) {
+ return pNextLine->GetBeginWordPlace();
+ }
+ } else {
+ return pLine->GetNextWordPlace(place);
+ }
+ }
+ return place;
+}
+
+void CSection::UpdateWordPlace(CPVT_WordPlace& place) const {
+ int32_t nLeft = 0;
+ int32_t nRight = m_LineArray.GetSize() - 1;
+ int32_t nMid = (nLeft + nRight) / 2;
+ while (nLeft <= nRight) {
+ if (CLine* pLine = m_LineArray.GetAt(nMid)) {
+ if (place.nWordIndex < pLine->m_LineInfo.nBeginWordIndex) {
+ nRight = nMid - 1;
+ nMid = (nLeft + nRight) / 2;
+ } else if (place.nWordIndex > pLine->m_LineInfo.nEndWordIndex) {
+ nLeft = nMid + 1;
+ nMid = (nLeft + nRight) / 2;
+ } else {
+ place.nLineIndex = nMid;
+ return;
+ }
+ } else {
+ break;
+ }
+ }
+}
+
+CPVT_WordPlace CSection::SearchWordPlace(const CFX_FloatPoint& point) const {
+ ASSERT(m_pVT);
+ CPVT_WordPlace place = GetBeginWordPlace();
+ FX_BOOL bUp = TRUE;
+ FX_BOOL bDown = TRUE;
+ int32_t nLeft = 0;
+ int32_t nRight = m_LineArray.GetSize() - 1;
+ int32_t nMid = m_LineArray.GetSize() / 2;
+ FX_FLOAT fTop = 0;
+ FX_FLOAT fBottom = 0;
+ while (nLeft <= nRight) {
+ if (CLine* pLine = m_LineArray.GetAt(nMid)) {
+ fTop = pLine->m_LineInfo.fLineY - pLine->m_LineInfo.fLineAscent -
+ m_pVT->GetLineLeading(m_SecInfo);
+ fBottom = pLine->m_LineInfo.fLineY - pLine->m_LineInfo.fLineDescent;
+ if (IsFloatBigger(point.y, fTop)) {
+ bUp = FALSE;
+ }
+ if (IsFloatSmaller(point.y, fBottom)) {
+ bDown = FALSE;
+ }
+ if (IsFloatSmaller(point.y, fTop)) {
+ nRight = nMid - 1;
+ nMid = (nLeft + nRight) / 2;
+ continue;
+ } else if (IsFloatBigger(point.y, fBottom)) {
+ nLeft = nMid + 1;
+ nMid = (nLeft + nRight) / 2;
+ continue;
+ } else {
+ place = SearchWordPlace(
+ point.x,
+ CPVT_WordRange(pLine->GetNextWordPlace(pLine->GetBeginWordPlace()),
+ pLine->GetEndWordPlace()));
+ place.nLineIndex = nMid;
+ return place;
+ }
+ }
+ }
+ if (bUp) {
+ place = GetBeginWordPlace();
+ }
+ if (bDown) {
+ place = GetEndWordPlace();
+ }
+ return place;
+}
+
+CPVT_WordPlace CSection::SearchWordPlace(
+ FX_FLOAT fx,
+ const CPVT_WordPlace& lineplace) const {
+ if (CLine* pLine = m_LineArray.GetAt(lineplace.nLineIndex)) {
+ return SearchWordPlace(
+ fx - m_SecInfo.rcSection.left,
+ CPVT_WordRange(pLine->GetNextWordPlace(pLine->GetBeginWordPlace()),
+ pLine->GetEndWordPlace()));
+ }
+ return GetBeginWordPlace();
+}
+
+CPVT_WordPlace CSection::SearchWordPlace(FX_FLOAT fx,
+ const CPVT_WordRange& range) const {
+ CPVT_WordPlace wordplace = range.BeginPos;
+ wordplace.nWordIndex = -1;
+ if (!m_pVT) {
+ return wordplace;
+ }
+ int32_t nLeft = range.BeginPos.nWordIndex;
+ int32_t nRight = range.EndPos.nWordIndex + 1;
+ int32_t nMid = (nLeft + nRight) / 2;
+ while (nLeft < nRight) {
+ if (nMid == nLeft) {
+ break;
+ }
+ if (nMid == nRight) {
+ nMid--;
+ break;
+ }
+ if (CPVT_WordInfo* pWord = m_WordArray.GetAt(nMid)) {
+ if (fx >
+ pWord->fWordX + m_pVT->GetWordWidth(*pWord) * VARIABLETEXT_HALF) {
+ nLeft = nMid;
+ nMid = (nLeft + nRight) / 2;
+ continue;
+ } else {
+ nRight = nMid;
+ nMid = (nLeft + nRight) / 2;
+ continue;
+ }
+ } else {
+ break;
+ }
+ }
+ if (CPVT_WordInfo* pWord = m_WordArray.GetAt(nMid)) {
+ if (fx > pWord->fWordX + m_pVT->GetWordWidth(*pWord) * VARIABLETEXT_HALF) {
+ wordplace.nWordIndex = nMid;
+ }
+ }
+ return wordplace;
+}
+
+void CSection::ClearLeftWords(int32_t nWordIndex) {
+ for (int32_t i = nWordIndex; i >= 0; i--) {
+ delete m_WordArray.GetAt(i);
+ m_WordArray.RemoveAt(i);
+ }
+}
+
+void CSection::ClearRightWords(int32_t nWordIndex) {
+ for (int32_t i = m_WordArray.GetSize() - 1; i > nWordIndex; i--) {
+ delete m_WordArray.GetAt(i);
+ m_WordArray.RemoveAt(i);
+ }
+}
+
+void CSection::ClearMidWords(int32_t nBeginIndex, int32_t nEndIndex) {
+ for (int32_t i = nEndIndex; i > nBeginIndex; i--) {
+ delete m_WordArray.GetAt(i);
+ m_WordArray.RemoveAt(i);
+ }
+}
+
+void CSection::ClearWords(const CPVT_WordRange& PlaceRange) {
+ CPVT_WordPlace SecBeginPos = GetBeginWordPlace();
+ CPVT_WordPlace SecEndPos = GetEndWordPlace();
+ if (PlaceRange.BeginPos.WordCmp(SecBeginPos) >= 0) {
+ if (PlaceRange.EndPos.WordCmp(SecEndPos) <= 0) {
+ ClearMidWords(PlaceRange.BeginPos.nWordIndex,
+ PlaceRange.EndPos.nWordIndex);
+ } else {
+ ClearRightWords(PlaceRange.BeginPos.nWordIndex);
+ }
+ } else if (PlaceRange.EndPos.WordCmp(SecEndPos) <= 0) {
+ ClearLeftWords(PlaceRange.EndPos.nWordIndex);
+ } else {
+ ResetWordArray();
+ }
+}
+
+void CSection::ClearWord(const CPVT_WordPlace& place) {
+ delete m_WordArray.GetAt(place.nWordIndex);
+ m_WordArray.RemoveAt(place.nWordIndex);
+}