/**
* Returns a list of pairs of x coordinates for visual ranges representing given logical range. If
* <code>startOffset == endOffset</code>, a pair of equal numbers is returned, corresponding to
* target position. Target offsets are supposed to be located on the same visual line.
*/
private TFloatArrayList logicalRangeToVisualRanges(int startOffset, int endOffset) {
assert startOffset <= endOffset;
TFloatArrayList result = new TFloatArrayList();
for (VisualLineFragmentsIterator.Fragment fragment :
VisualLineFragmentsIterator.create(myView, startOffset, false)) {
int minOffset = fragment.getMinOffset();
int maxOffset = fragment.getMaxOffset();
if (startOffset == endOffset) {
if (startOffset >= minOffset && startOffset <= maxOffset) {
float x = fragment.offsetToX(startOffset);
result.add(x);
result.add(x);
break;
}
} else if (startOffset < maxOffset && endOffset > minOffset) {
float x1 = fragment.offsetToX(Math.max(minOffset, startOffset));
float x2 = fragment.offsetToX(Math.min(maxOffset, endOffset));
if (x1 > x2) {
float tmp = x1;
x1 = x2;
x2 = tmp;
}
if (result.isEmpty() || x1 > result.get(result.size() - 1)) {
result.add(x1);
result.add(x2);
} else {
result.set(result.size() - 1, x2);
}
}
}
return result;
}
private void paintVirtualSelectionIfNecessary(
Graphics2D g,
Map<Integer, Couple<Integer>> virtualSelectionMap,
int columnStart,
float xStart,
float xEnd,
int y) {
int visualLine = myView.yToVisualLine(y);
Couple<Integer> selectionRange = virtualSelectionMap.get(visualLine);
if (selectionRange == null || selectionRange.second <= columnStart) return;
float startX =
selectionRange.first <= columnStart
? xStart
: myView.visualPositionToXY(new VisualPosition(visualLine, selectionRange.first)).x;
float endX =
Math.min(
xEnd,
myView.visualPositionToXY(new VisualPosition(visualLine, selectionRange.second)).x);
paintBackground(
g,
myEditor.getColorsScheme().getColor(EditorColors.SELECTION_BACKGROUND_COLOR),
startX,
y,
endX - startX);
}
private void paintComposedTextDecoration(Graphics2D g) {
TextRange composedTextRange = myEditor.getComposedTextRange();
if (composedTextRange != null) {
Point p1 =
myView.offsetToXY(
Math.min(composedTextRange.getStartOffset(), myDocument.getTextLength()),
true,
false);
Point p2 =
myView.offsetToXY(
Math.min(composedTextRange.getEndOffset(), myDocument.getTextLength()), false, true);
int y = p1.y + myView.getAscent() + 1;
g.setStroke(IME_COMPOSED_TEXT_UNDERLINE_STROKE);
g.setColor(myEditor.getColorsScheme().getDefaultForeground());
UIUtil.drawLine(g, p1.x, y, p2.x, y);
}
}
private void paintLineMarkerSeparator(RangeHighlighter marker, Rectangle clip, Graphics g) {
Color separatorColor = marker.getLineSeparatorColor();
LineSeparatorRenderer lineSeparatorRenderer = marker.getLineSeparatorRenderer();
if (separatorColor == null && lineSeparatorRenderer == null) {
return;
}
int line =
myDocument.getLineNumber(
marker.getLineSeparatorPlacement() == SeparatorPlacement.TOP
? marker.getStartOffset()
: marker.getEndOffset());
int visualLine =
myView.logicalToVisualPosition(
new LogicalPosition(
line + (marker.getLineSeparatorPlacement() == SeparatorPlacement.TOP ? 0 : 1),
0),
false)
.line;
int y = myView.visualLineToY(visualLine) - 1;
int endShift = clip.x + clip.width;
EditorSettings settings = myEditor.getSettings();
if (settings.isRightMarginShown()
&& myEditor.getColorsScheme().getColor(EditorColors.RIGHT_MARGIN_COLOR) != null) {
endShift =
Math.min(
endShift,
settings.getRightMargin(myEditor.getProject()) * myView.getPlainSpaceWidth());
}
g.setColor(separatorColor);
if (lineSeparatorRenderer != null) {
lineSeparatorRenderer.drawLine(g, 0, endShift, y);
} else {
UIUtil.drawLine(g, 0, y, endShift, y);
}
}
private void paintLineFragments(
Graphics2D g, Rectangle clip, int visualLine, int y, LineFragmentPainter painter) {
float x = visualLine == 0 ? myView.getPrefixTextWidthInPixels() : 0;
int offset = myView.visualPositionToOffset(new VisualPosition(visualLine, 0));
int visualLineEndOffset =
myView.visualPositionToOffset(new VisualPosition(visualLine, Integer.MAX_VALUE, true));
IterationState it = null;
int prevEndOffset = -1;
boolean firstFragment = true;
int maxColumn = 0;
for (VisualLineFragmentsIterator.Fragment fragment :
VisualLineFragmentsIterator.create(myView, offset, false)) {
int fragmentStartOffset = fragment.getStartOffset();
int start = fragmentStartOffset;
int end = fragment.getEndOffset();
x = fragment.getStartX();
if (firstFragment) {
firstFragment = false;
SoftWrap softWrap = myEditor.getSoftWrapModel().getSoftWrap(offset);
if (softWrap != null) {
prevEndOffset = offset;
it =
new IterationState(
myEditor,
offset == 0 ? 0 : offset - 1,
visualLineEndOffset,
true,
false,
false,
false);
if (it.getEndOffset() <= offset) {
it.advance();
}
painter.paintBeforeLineStart(
g,
it.getStartOffset() == offset
? it.getBeforeLineStartBackgroundAttributes()
: it.getMergedAttributes(),
fragment.getStartVisualColumn(),
fragment.getStartX(),
y);
}
}
FoldRegion foldRegion = fragment.getCurrentFoldRegion();
if (foldRegion == null) {
if (start != prevEndOffset) {
it =
new IterationState(
myEditor,
start,
fragment.isRtl() ? offset : visualLineEndOffset,
true,
false,
false,
fragment.isRtl());
}
prevEndOffset = end;
assert it != null;
while (fragment.isRtl() ? start > end : start < end) {
if (fragment.isRtl() ? it.getEndOffset() >= start : it.getEndOffset() <= start) {
assert !it.atEnd();
it.advance();
}
TextAttributes attributes = it.getMergedAttributes();
int curEnd =
fragment.isRtl()
? Math.max(it.getEndOffset(), end)
: Math.min(it.getEndOffset(), end);
float xNew = fragment.offsetToX(x, start, curEnd);
painter.paint(
g,
fragment,
fragment.isRtl() ? fragmentStartOffset - start : start - fragmentStartOffset,
fragment.isRtl() ? fragmentStartOffset - curEnd : curEnd - fragmentStartOffset,
attributes,
x,
xNew,
y);
x = xNew;
start = curEnd;
}
} else {
float xNew = fragment.getEndX();
painter.paint(
g,
fragment,
0,
fragment.getEndVisualColumn() - fragment.getStartVisualColumn(),
getFoldRegionAttributes(foldRegion),
x,
xNew,
y);
x = xNew;
prevEndOffset = -1;
it = null;
}
maxColumn = fragment.getEndVisualColumn();
}
if (it == null || it.getEndOffset() != visualLineEndOffset) {
it =
new IterationState(
myEditor,
visualLineEndOffset == offset ? visualLineEndOffset : visualLineEndOffset - 1,
visualLineEndOffset,
true,
false,
false,
false);
}
if (!it.atEnd()) {
it.advance();
}
assert it.atEnd();
painter.paintAfterLineEnd(g, clip, it, maxColumn, x, y);
}