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-rw-r--r--call/ScintillaCall.cxx4
-rw-r--r--doc/ScintillaDoc.html7
-rw-r--r--doc/ScintillaHistory.html5
-rw-r--r--include/Scintilla.h1
-rw-r--r--include/Scintilla.iface3
-rw-r--r--include/ScintillaCall.h1
-rw-r--r--include/ScintillaMessages.h1
-rw-r--r--src/CellBuffer.cxx23
-rw-r--r--src/CellBuffer.h1
-rw-r--r--src/Document.cxx4
-rw-r--r--src/Document.h1
-rw-r--r--src/Editor.cxx4
-rw-r--r--src/Partitioning.h5
13 files changed, 60 insertions, 0 deletions
diff --git a/call/ScintillaCall.cxx b/call/ScintillaCall.cxx
index f9bffeb64..bec5ccfed 100644
--- a/call/ScintillaCall.cxx
+++ b/call/ScintillaCall.cxx
@@ -1120,6 +1120,10 @@ Line ScintillaCall::LineCount() {
return Call(Message::GetLineCount);
}
+void ScintillaCall::AllocateLines(Line lines) {
+ Call(Message::AllocateLines, lines);
+}
+
void ScintillaCall::SetMarginLeft(int pixelWidth) {
Call(Message::SetMarginLeft, 0, pixelWidth);
}
diff --git a/doc/ScintillaDoc.html b/doc/ScintillaDoc.html
index 50409c0af..03fe95ea9 100644
--- a/doc/ScintillaDoc.html
+++ b/doc/ScintillaDoc.html
@@ -531,6 +531,7 @@
<a class="message" href="#SCI_GETREADONLY">SCI_GETREADONLY &rarr; bool</a><br />
<a class="message" href="#SCI_GETTEXTRANGE">SCI_GETTEXTRANGE(&lt;unused&gt;, Sci_TextRange *tr) &rarr; position</a><br />
<a class="message" href="#SCI_ALLOCATE">SCI_ALLOCATE(position bytes)</a><br />
+ <a class="message" href="#SCI_ALLOCATELINES">SCI_ALLOCATELINES(line lines)</a><br />
<a class="message" href="#SCI_ADDTEXT">SCI_ADDTEXT(position length, const char *text)</a><br />
<a class="message" href="#SCI_ADDSTYLEDTEXT">SCI_ADDSTYLEDTEXT(position length, cell *c)</a><br />
<a class="message" href="#SCI_APPENDTEXT">SCI_APPENDTEXT(position length, const char *text)</a><br />
@@ -645,6 +646,12 @@
Allocate a document buffer large enough to store a given number of bytes.
The document will not be made smaller than its current contents.</p>
+ <p><b id="SCI_ALLOCATELINES">SCI_ALLOCATELINES(line lines)</b><br />
+ Allocate line indices to match the <code class="parameter">lines</code> argument.
+ This is an optimization that can prevent multiple reallocations of the indices as text is inserted
+ if the application can estimate the number of lines in the document.
+ The number of lines will not be reduced by this call.</p>
+
<p><b id="SCI_ADDTEXT">SCI_ADDTEXT(position length, const char *text)</b><br />
This inserts the first <code class="parameter">length</code> characters from the string
<code class="parameter">text</code>
diff --git a/doc/ScintillaHistory.html b/doc/ScintillaHistory.html
index c4cd3132c..f433322ea 100644
--- a/doc/ScintillaHistory.html
+++ b/doc/ScintillaHistory.html
@@ -580,6 +580,11 @@
<a href="https://sourceforge.net/p/scintilla/feature-requests/1381/">Feature #1381</a>.
</li>
<li>
+ Add SCI_ALLOCATELINES to allocate indices to hold some number of lines.
+ This can decrease reallocation overhead when the application can count or estimate the number of lines in huge files.
+ <a href="https://sourceforge.net/p/scintilla/feature-requests/1370/">Feature #1370</a>.
+ </li>
+ <li>
On Win32, when technology is changed, buffering is set to a reasonable value for the technology:
on for GDI and off for Direct2D as Direct2D performs its own buffering.
<a href="https://sourceforge.net/p/scintilla/feature-requests/1400/">Feature #1400</a>.
diff --git a/include/Scintilla.h b/include/Scintilla.h
index a92b51684..088abc0d8 100644
--- a/include/Scintilla.h
+++ b/include/Scintilla.h
@@ -467,6 +467,7 @@ typedef sptr_t (*SciFnDirectStatus)(sptr_t ptr, unsigned int iMessage, uptr_t wP
#define SCI_GETFIRSTVISIBLELINE 2152
#define SCI_GETLINE 2153
#define SCI_GETLINECOUNT 2154
+#define SCI_ALLOCATELINES 2089
#define SCI_SETMARGINLEFT 2155
#define SCI_GETMARGINLEFT 2156
#define SCI_SETMARGINRIGHT 2157
diff --git a/include/Scintilla.iface b/include/Scintilla.iface
index 131ca2814..b59cda663 100644
--- a/include/Scintilla.iface
+++ b/include/Scintilla.iface
@@ -1196,6 +1196,9 @@ fun position GetLine=2153(line line, stringresult text)
# Returns the number of lines in the document. There is always at least one.
get line GetLineCount=2154(,)
+# Enlarge the number of lines allocated.
+set void AllocateLines=2089(line lines,)
+
# Sets the size in pixels of the left margin.
set void SetMarginLeft=2155(, int pixelWidth)
diff --git a/include/ScintillaCall.h b/include/ScintillaCall.h
index 778a195d0..e0cfdd052 100644
--- a/include/ScintillaCall.h
+++ b/include/ScintillaCall.h
@@ -320,6 +320,7 @@ public:
Position GetLine(Line line, char *text);
std::string GetLine(Line line);
Line LineCount();
+ void AllocateLines(Line lines);
void SetMarginLeft(int pixelWidth);
int MarginLeft();
void SetMarginRight(int pixelWidth);
diff --git a/include/ScintillaMessages.h b/include/ScintillaMessages.h
index 2d19db1ae..a0c641a39 100644
--- a/include/ScintillaMessages.h
+++ b/include/ScintillaMessages.h
@@ -255,6 +255,7 @@ enum class Message {
GetFirstVisibleLine = 2152,
GetLine = 2153,
GetLineCount = 2154,
+ AllocateLines = 2089,
SetMarginLeft = 2155,
GetMarginLeft = 2156,
SetMarginRight = 2157,
diff --git a/src/CellBuffer.cxx b/src/CellBuffer.cxx
index f02d5348a..d94ffaaea 100644
--- a/src/CellBuffer.cxx
+++ b/src/CellBuffer.cxx
@@ -71,6 +71,7 @@ public:
virtual void SetLineStart(Sci::Line line, Sci::Position position) noexcept = 0;
virtual void RemoveLine(Sci::Line line) = 0;
virtual Sci::Line Lines() const noexcept = 0;
+ virtual void AllocateLines(Sci::Line lines) = 0;
virtual Sci::Line LineFromPosition(Sci::Position pos) const noexcept = 0;
virtual Sci::Position LineStart(Sci::Line line) const noexcept = 0;
virtual void InsertCharacters(Sci::Line line, CountWidths delta) noexcept = 0;
@@ -132,6 +133,11 @@ public:
const Sci::Position widthCurrent = LineWidth(line);
starts.InsertText(static_cast<POS>(line), static_cast<POS>(width - widthCurrent));
}
+ void AllocateLines(Sci::Line lines) {
+ if (lines > starts.Partitions()) {
+ starts.ReAllocate(lines);
+ }
+ }
void InsertLines(Sci::Line line, Sci::Line lines) {
// Insert multiple lines with each temporarily 1 character wide.
// The line widths will be fixed up by later measuring code.
@@ -237,6 +243,17 @@ public:
Sci::Line Lines() const noexcept override {
return static_cast<Sci::Line>(starts.Partitions());
}
+ void AllocateLines(Sci::Line lines) override {
+ if (lines > Lines()) {
+ starts.ReAllocate(lines);
+ if (FlagSet(activeIndices, LineCharacterIndexType::Utf32)) {
+ startsUTF32.AllocateLines(lines);
+ }
+ if (FlagSet(activeIndices, LineCharacterIndexType::Utf16)) {
+ startsUTF16.AllocateLines(lines);
+ }
+ }
+ }
Sci::Line LineFromPosition(Sci::Position pos) const noexcept override {
return static_cast<Sci::Line>(starts.PartitionFromPosition(static_cast<POS>(pos)));
}
@@ -789,6 +806,10 @@ Sci::Line CellBuffer::Lines() const noexcept {
return plv->Lines();
}
+void CellBuffer::AllocateLines(Sci::Line lines) {
+ plv->AllocateLines(lines);
+}
+
Sci::Position CellBuffer::LineStart(Sci::Line line) const noexcept {
if (line < 0)
return 0;
@@ -903,7 +924,9 @@ bool CellBuffer::UTF8IsCharacterBoundary(Sci::Position position) const {
void CellBuffer::ResetLineEnds() {
// Reinitialize line data -- too much work to preserve
+ const Sci::Line lines = plv->Lines();
plv->Init();
+ plv->AllocateLines(lines);
constexpr Sci::Position position = 0;
const Sci::Position length = Length();
diff --git a/src/CellBuffer.h b/src/CellBuffer.h
index 637d0a6b5..be7957e99 100644
--- a/src/CellBuffer.h
+++ b/src/CellBuffer.h
@@ -191,6 +191,7 @@ public:
void AllocateLineCharacterIndex(Scintilla::LineCharacterIndexType lineCharacterIndex);
void ReleaseLineCharacterIndex(Scintilla::LineCharacterIndexType lineCharacterIndex);
Sci::Line Lines() const noexcept;
+ void AllocateLines(Sci::Line lines);
Sci::Position LineStart(Sci::Line line) const noexcept;
Sci::Position IndexLineStart(Sci::Line line, Scintilla::LineCharacterIndexType lineCharacterIndex) const noexcept;
Sci::Line LineFromPosition(Sci::Position pos) const noexcept;
diff --git a/src/Document.cxx b/src/Document.cxx
index 6194f772e..96bee868e 100644
--- a/src/Document.cxx
+++ b/src/Document.cxx
@@ -2266,6 +2266,10 @@ Sci::Line Document::LinesTotal() const noexcept {
return cb.Lines();
}
+void Document::AllocateLines(Sci::Line lines) {
+ cb.AllocateLines(lines);
+}
+
void Document::SetDefaultCharClasses(bool includeWordClass) {
charClass.SetDefaultCharClasses(includeWordClass);
}
diff --git a/src/Document.h b/src/Document.h
index fe27f4936..7984ad018 100644
--- a/src/Document.h
+++ b/src/Document.h
@@ -445,6 +445,7 @@ public:
void AllocateLineCharacterIndex(Scintilla::LineCharacterIndexType lineCharacterIndex);
void ReleaseLineCharacterIndex(Scintilla::LineCharacterIndexType lineCharacterIndex);
Sci::Line LinesTotal() const noexcept;
+ void AllocateLines(Sci::Line lines);
void SetDefaultCharClasses(bool includeWordClass);
void SetCharClasses(const unsigned char *chars, CharacterClass newCharClass);
diff --git a/src/Editor.cxx b/src/Editor.cxx
index 5a0c153da..db7e2366e 100644
--- a/src/Editor.cxx
+++ b/src/Editor.cxx
@@ -5988,6 +5988,10 @@ sptr_t Editor::WndProc(Message iMessage, uptr_t wParam, sptr_t lParam) {
else
return pdoc->LinesTotal();
+ case Message::AllocateLines:
+ pdoc->AllocateLines(wParam);
+ break;
+
case Message::GetModify:
return !pdoc->IsSavePoint();
diff --git a/src/Partitioning.h b/src/Partitioning.h
index cf1bb6a7b..efa6bf95e 100644
--- a/src/Partitioning.h
+++ b/src/Partitioning.h
@@ -110,6 +110,11 @@ public:
return static_cast<T>(body->Length())-1;
}
+ void ReAllocate(ptrdiff_t newSize) {
+ // + 1 accounts for initial element that is always 0.
+ body->ReAllocate(newSize + 1);
+ }
+
T Length() const noexcept {
return PositionFromPartition(Partitions());
}
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-11 15:34:33 +0000