From 92290868cf9753d2df0d494cb44e2ff62a570b58 Mon Sep 17 00:00:00 2001
From: Neil <nyamatongwe@gmail.com>
Date: Mon, 24 May 2021 19:31:06 +1000
Subject: Define C++ version of the Scintilla API in ScintillaTypes.h,
 ScintillaMessages.h and ScintillaStructures.h using scoped enumerations. Use
 these headers instead of Scintilla.h internally. External definitions go in
 the Scintilla namespace and internal definitio0ns in Scintilla::Internal.

---
 src/PositionCache.cxx | 36 +++++++++++++++++++-----------------
 1 file changed, 19 insertions(+), 17 deletions(-)

(limited to 'src/PositionCache.cxx')

diff --git a/src/PositionCache.cxx b/src/PositionCache.cxx
index 1839f2072..fb3d8fa01 100644
--- a/src/PositionCache.cxx
+++ b/src/PositionCache.cxx
@@ -21,14 +21,15 @@
 #include <iterator>
 #include <memory>
 
+#include "ScintillaTypes.h"
+#include "ScintillaMessages.h"
+#include "ILoader.h"
+#include "ILexer.h"
+
 #include "Debugging.h"
 #include "Geometry.h"
 #include "Platform.h"
 
-#include "ILoader.h"
-#include "ILexer.h"
-#include "Scintilla.h"
-
 #include "CharacterCategoryMap.h"
 #include "Position.h"
 #include "UniqueString.h"
@@ -51,6 +52,7 @@
 #include "PositionCache.h"
 
 using namespace Scintilla;
+using namespace Scintilla::Internal;
 
 void BidiData::Resize(size_t maxLineLength_) {
 	stylesFonts.resize(maxLineLength_ + 1);
@@ -134,7 +136,7 @@ int LineLayout::LineStart(int line) const noexcept {
 	}
 }
 
-int Scintilla::LineLayout::LineLength(int line) const noexcept {
+int LineLayout::LineLength(int line) const noexcept {
 	if (!lineStarts) {
 		return numCharsInLine;
 	} if (line >= lines - 1) {
@@ -361,7 +363,7 @@ XYPOSITION ScreenLine::TabPositionAfter(XYPOSITION xPosition) const {
 }
 
 LineLayoutCache::LineLayoutCache() :
-	level(Cache::none),
+	level(LineCache::None),
 	allInvalidated(false), styleClock(-1) {
 }
 
@@ -380,13 +382,13 @@ constexpr size_t alignmentLLC = 20;
 
 size_t LineLayoutCache::EntryForLine(Sci::Line line) const noexcept {
 	switch (level) {
-	case Cache::none:
+	case LineCache::None:
 		return 0;
-	case Cache::caret:
+	case LineCache::Caret:
 		return 0;
-	case Cache::page:
+	case LineCache::Page:
 		return 1 + (line % (cache.size() - 1));
-	case Cache::document:
+	case LineCache::Document:
 		return line;
 	}
 	return 0;
@@ -394,11 +396,11 @@ size_t LineLayoutCache::EntryForLine(Sci::Line line) const noexcept {
 
 void LineLayoutCache::AllocateForLevel(Sci::Line linesOnScreen, Sci::Line linesInDoc) {
 	size_t lengthForLevel = 0;
-	if (level == Cache::caret) {
+	if (level == LineCache::Caret) {
 		lengthForLevel = 1;
-	} else if (level == Cache::page) {
+	} else if (level == LineCache::Page) {
 		lengthForLevel = AlignUp(linesOnScreen + 1, alignmentLLC);
-	} else if (level == Cache::document) {
+	} else if (level == LineCache::Document) {
 		lengthForLevel = AlignUp(linesInDoc, alignmentLLC);
 	}
 
@@ -408,7 +410,7 @@ void LineLayoutCache::AllocateForLevel(Sci::Line linesOnScreen, Sci::Line linesI
 		// Cache::none -> no entries
 		// Cache::caret -> 1 entry can take any line
 		// Cache::document -> entry per line so each line in correct entry after resize
-		if (level == Cache::page) {
+		if (level == LineCache::Page) {
 			// Cache::page -> locates lines in particular entries which may be incorrect after
 			// a resize so move them to correct entries.
 			for (size_t i = 1; i < cache.size();) {
@@ -462,7 +464,7 @@ void LineLayoutCache::Invalidate(LineLayout::ValidLevel validity_) noexcept {
 	}
 }
 
-void LineLayoutCache::SetLevel(Cache level_) noexcept {
+void LineLayoutCache::SetLevel(LineCache level_) noexcept {
 	if (level != level_) {
 		level = level_;
 		allInvalidated = false;
@@ -479,7 +481,7 @@ std::shared_ptr<LineLayout> LineLayoutCache::Retrieve(Sci::Line lineNumber, Sci:
 	}
 	allInvalidated = false;
 	size_t pos = 0;
-	if (level == Cache::page) {
+	if (level == LineCache::Page) {
 		// If first entry is this line then just reuse it.
 		if (!(cache[0] && (cache[0]->lineNumber == lineNumber))) {
 			const size_t posForLine = EntryForLine(lineNumber);
@@ -503,7 +505,7 @@ std::shared_ptr<LineLayout> LineLayoutCache::Retrieve(Sci::Line lineNumber, Sci:
 				pos = posForLine;
 			}
 		}
-	} else if (level == Cache::document) {
+	} else if (level == LineCache::Document) {
 		pos = lineNumber;
 	}
 
-- 
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