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-rw-r--r--src/Editor.cxx79
-rw-r--r--src/Editor.h24
2 files changed, 63 insertions, 40 deletions
diff --git a/src/Editor.cxx b/src/Editor.cxx
index 6bfce655a..cc205feb8 100644
--- a/src/Editor.cxx
+++ b/src/Editor.cxx
@@ -32,12 +32,14 @@ active(false), on(false), period(500) {}
Timer::Timer() :
ticking(false), ticksToWait(0), tickerID(0) {}
-LineLayout::LineLayout(int maxLineLength_, int maxDisplayLines) :
- validity(llInvalid),
- maxLineLength(-1),
+LineLayout::LineLayout(int maxLineLength_) :
+ lineStarts(0),
+ lenLineStarts(0),
lineNumber(-1),
inCache(false),
+ maxLineLength(-1),
numCharsInLine(0),
+ validity(llInvalid),
xHighlightGuide(0),
highlightColumn(0),
selStart(0),
@@ -49,9 +51,7 @@ LineLayout::LineLayout(int maxLineLength_, int maxDisplayLines) :
indicators(0),
positions(0),
widthLine(0),
- lines(1),
- maxDisplayLines(maxDisplayLines),
- lineStarts(0) {
+ lines(1) {
Resize(maxLineLength_);
}
@@ -66,7 +66,6 @@ void LineLayout::Resize(int maxLineLength_) {
styles = new char[maxLineLength_ + 1];
indicators = new char[maxLineLength_ + 1];
positions = new int[maxLineLength_ + 1];
- lineStarts = new int[maxDisplayLines + 1];
maxLineLength = maxLineLength_;
}
}
@@ -88,6 +87,25 @@ void LineLayout::Invalidate(validLevel validity_) {
validity = validity_;
}
+void LineLayout::SetLineStart(int line, int start) {
+ if ((line >= lenLineStarts) && (line != 0)) {
+ int newMaxLines = line + 20;
+ int *newLineStarts = new int[newMaxLines];
+ if (!newLineStarts)
+ return;
+ for (int i=0; i<newMaxLines; i++) {
+ if (i < lenLineStarts)
+ newLineStarts[i] = lineStarts[i];
+ else
+ newLineStarts[i] = 0;
+ }
+ delete []lineStarts;
+ lineStarts = newLineStarts;
+ lenLineStarts = newMaxLines;
+ }
+ lineStarts[line] = start;
+}
+
LineLayoutCache::LineLayoutCache() :
level(0), length(0), size(0), cache(0),
allInvalidated(false), styleClock(-1) {
@@ -434,13 +452,13 @@ Point Editor::LocationFromPosition(int pos) {
int posInLine = pos - posLineStart;
// In case of very long line put x at arbitrary large position
if (posInLine > ll->maxLineLength) {
- pt.x = ll->positions[ll->maxLineLength] - ll->positions[ll->lineStarts[ll->lines]];
+ pt.x = ll->positions[ll->maxLineLength] - ll->positions[ll->LineStart(ll->lines)];
}
for (int subLine=0; subLine<ll->lines; subLine++) {
- if ((posInLine > ll->lineStarts[subLine]) && (posInLine <= ll->lineStarts[subLine+1])) {
- pt.x = ll->positions[posInLine] - ll->positions[ll->lineStarts[subLine]];
+ if ((posInLine > ll->LineStart(subLine)) && (posInLine <= ll->LineStart(subLine+1))) {
+ pt.x = ll->positions[posInLine] - ll->positions[ll->LineStart(subLine)];
}
- if (posInLine >= ll->lineStarts[subLine]) {
+ if (posInLine >= ll->LineStart(subLine)) {
pt.y += vs.lineHeight;
}
}
@@ -485,8 +503,8 @@ int Editor::PositionFromLocation(Point pt) {
int lineStartSet = cs.DisplayFromDoc(lineDoc);
int subLine = visibleLine - lineStartSet;
if (subLine < ll->lines) {
- int lineStart = ll->lineStarts[subLine];
- int lineEnd = ll->lineStarts[subLine+1];
+ int lineStart = ll->LineStart(subLine);
+ int lineEnd = ll->LineStart(subLine+1);
int subLineStart = ll->positions[lineStart];
for (int i = lineStart; i < lineEnd; i++) {
if (pt.x < (((ll->positions[i] + ll->positions[i + 1]) / 2) - subLineStart) ||
@@ -532,8 +550,8 @@ int Editor::PositionFromLocationClose(Point pt) {
int lineStartSet = cs.DisplayFromDoc(lineDoc);
int subLine = visibleLine - lineStartSet;
if (subLine < ll->lines) {
- int lineStart = ll->lineStarts[subLine];
- int lineEnd = ll->lineStarts[subLine+1];
+ int lineStart = ll->LineStart(subLine);
+ int lineEnd = ll->LineStart(subLine+1);
int subLineStart = ll->positions[lineStart];
for (int i = lineStart; i < lineEnd; i++) {
if (pt.x < (((ll->positions[i] + ll->positions[i + 1]) / 2) - subLineStart) ||
@@ -564,8 +582,8 @@ int Editor::PositionFromLineX(int lineDoc, int x) {
LayoutLine(lineDoc, surface, vs, ll, wrapWidth);
retVal = ll->numCharsInLine + posLineStart;
int subLine = 0;
- int lineStart = ll->lineStarts[subLine];
- int lineEnd = ll->lineStarts[subLine+1];
+ int lineStart = ll->LineStart(subLine);
+ int lineEnd = ll->LineStart(subLine+1);
int subLineStart = ll->positions[lineStart];
for (int i = lineStart; i < lineEnd; i++) {
if (x < (((ll->positions[i] + ll->positions[i + 1]) / 2) - subLineStart) ||
@@ -849,7 +867,7 @@ int Editor::DisplayFromPosition(int pos) {
int posInLine = pos - posLineStart;
lineDisplay--; // To make up for first increment ahead.
for (int subLine=0; subLine<ll->lines; subLine++) {
- if (posInLine >= ll->lineStarts[subLine]) {
+ if (posInLine >= ll->LineStart(subLine)) {
lineDisplay++;
}
}
@@ -1261,7 +1279,6 @@ void Editor::LayoutLine(int line, Surface *surface, ViewStyle &vstyle, LineLayou
if (ll->validity == LineLayout::llInvalid) {
ll->widthLine = width;
ll->lines = 1;
- ll->lineStarts[0] = 0;
int numCharsInLine = 0;
if (vstyle.edgeState == EDGE_BACKGROUND) {
ll->edgeColumn = pdoc->FindColumn(line, theEdge);
@@ -1361,7 +1378,6 @@ void Editor::LayoutLine(int line, Surface *surface, ViewStyle &vstyle, LineLayou
if (ll->validity == LineLayout::llPositions) {
if (width == wrapWidthInfinite) {
ll->lines = 1;
- ll->lineStarts[1] = ll->numCharsInLine;
ll->widthLine = ll->positions[ll->numCharsInLine];
} else {
if (width < 20) { // Hard to cope when too narrow, so just assume there is space
@@ -1391,12 +1407,8 @@ void Editor::LayoutLine(int line, Surface *surface, ViewStyle &vstyle, LineLayou
}
}
lastLineStart = lastGoodBreak;
- if (ll->lines < ll->maxDisplayLines - 2) {
- ll->lines++;
- ll->lineStarts[ll->lines] = lastGoodBreak;
- } else {
- break;
- }
+ ll->lines++;
+ ll->SetLineStart(ll->lines, lastGoodBreak);
startOffset = ll->positions[lastGoodBreak];
p = lastGoodBreak + 1;
continue;
@@ -1411,7 +1423,6 @@ void Editor::LayoutLine(int line, Surface *surface, ViewStyle &vstyle, LineLayou
p++;
}
ll->lines++;
- ll->lineStarts[ll->lines] = ll->numCharsInLine;
}
ll->validity = LineLayout::llLines;
}
@@ -1472,13 +1483,13 @@ void Editor::DrawLine(Surface *surface, ViewStyle &vsDraw, int line, int lineVis
int posLineEnd = pdoc->LineStart(line + 1);
int styleMask = pdoc->stylingBitsMask;
- int startseg = ll->lineStarts[subLine];
+ int startseg = ll->LineStart(subLine);
int subLineStart = ll->positions[startseg];
int lineStart = 0;
int lineEnd = 0;
if (subLine < ll->lines) {
- lineStart = ll->lineStarts[subLine];
- lineEnd = ll->lineStarts[subLine+1];
+ lineStart = ll->LineStart(subLine);
+ lineEnd = ll->LineStart(subLine+1);
}
for (int i = lineStart; i < lineEnd; i++) {
@@ -1891,9 +1902,9 @@ void Editor::Paint(Surface *surfaceWindow, PRectangle rcArea) {
// Draw the Caret
if (lineDoc == lineCaret) {
int offset = Platform::Minimum(posCaret - posLineStart, ll->maxLineLength);
- if ((offset >= ll->lineStarts[subLine]) &&
- ((offset < ll->lineStarts[subLine+1]) || offset == ll->numCharsInLine)) {
- int xposCaret = ll->positions[offset] - ll->positions[ll->lineStarts[subLine]] + xStart;
+ if ((offset >= ll->LineStart(subLine)) &&
+ ((offset < ll->LineStart(subLine+1)) || offset == ll->numCharsInLine)) {
+ int xposCaret = ll->positions[offset] - ll->positions[ll->LineStart(subLine)] + xStart;
int widthOverstrikeCaret;
if (posCaret == pdoc->Length()) { // At end of document
widthOverstrikeCaret = vs.aveCharWidth;
@@ -2086,7 +2097,7 @@ long Editor::FormatRange(bool draw, RangeToFormat *pfr) {
// Copy this line and its styles from the document into local arrays
// and determine the x position at which each character starts.
- LineLayout ll;
+ LineLayout ll(8000);
LayoutLine(line, surfaceMeasure, vsPrint, &ll);
ll.selStart = -1;
ll.selEnd = -1;
diff --git a/src/Editor.h b/src/Editor.h
index a7047ef14..1056a95bb 100644
--- a/src/Editor.h
+++ b/src/Editor.h
@@ -34,13 +34,17 @@ public:
/**
*/
class LineLayout {
-public:
- enum validLevel { llInvalid, llPositions, llLines } validity;
+private:
+ friend class LineLayoutCache;
+ int *lineStarts;
+ int lenLineStarts;
/// Drawing is only performed for @a maxLineLength characters on each line.
- int maxLineLength;
int lineNumber;
bool inCache;
+public:
+ int maxLineLength;
int numCharsInLine;
+ enum validLevel { llInvalid, llPositions, llLines } validity;
int xHighlightGuide;
bool highlightColumn;
int selStart;
@@ -55,14 +59,22 @@ public:
// Wrapped line support
int widthLine;
int lines;
- int maxDisplayLines;
- int *lineStarts;
- LineLayout(int maxLineLength_ = 8000, int maxDisplayLines=100);
+ LineLayout(int maxLineLength_);
virtual ~LineLayout();
void Resize(int maxLineLength_);
void Free();
void Invalidate(validLevel validity_);
+ int LineStart(int line) {
+ if (line <= 0) {
+ return 0;
+ } else if ((line >= lines) || !lineStarts) {
+ return numCharsInLine;
+ } else {
+ return lineStarts[line];
+ }
+ }
+ void SetLineStart(int line, int start);
};
/**
generated by cgit v1.2.3 (git 2.25.1) at 2025-11-04 12:16:31 +0000