/**
* Called on editor settings change. Current model is expected to drop all cached information
* about the settings if any.
*/
public void reinitSettings() {
boolean softWrapsUsedBefore = myUseSoftWraps;
myUseSoftWraps = areSoftWrapsEnabledInEditor();
int tabWidthBefore = myTabWidth;
myTabWidth = EditorUtil.getTabSize(myEditor);
boolean fontsChanged = false;
if (!myFontPreferences.equals(myEditor.getColorsScheme().getFontPreferences())
&& myEditorTextRepresentationHelper instanceof DefaultEditorTextRepresentationHelper) {
fontsChanged = true;
myEditor.getColorsScheme().getFontPreferences().copyTo(myFontPreferences);
((DefaultEditorTextRepresentationHelper) myEditorTextRepresentationHelper)
.clearSymbolWidthCache();
myPainter.reinit();
}
if ((myUseSoftWraps ^ softWrapsUsedBefore)
|| (tabWidthBefore >= 0 && myTabWidth != tabWidthBefore)
|| fontsChanged) {
myApplianceManager.reset();
myDeferredFoldRegions.clear();
myStorage.removeAll();
myEditor.getScrollingModel().scrollToCaret(ScrollType.CENTER);
}
}
private void paintSelectionOnFirstSoftWrapLineIfNecessary(
Graphics2D g, int columnStart, float xStart, float xEnd, int y) {
VisualPosition selectionStartPosition =
myEditor.getSelectionModel().getSelectionStartPosition();
VisualPosition selectionEndPosition = myEditor.getSelectionModel().getSelectionEndPosition();
int visualLine = myView.yToVisualLine(y);
if (selectionStartPosition.equals(selectionEndPosition)
|| visualLine < selectionStartPosition.line
|| visualLine > selectionEndPosition.line
|| visualLine == selectionEndPosition.line && selectionEndPosition.column <= columnStart) {
return;
}
float startX =
selectionStartPosition.line == visualLine && selectionStartPosition.column > columnStart
? myView.visualPositionToXY(selectionStartPosition).x
: xStart;
float endX =
selectionEndPosition.line == visualLine
? myView.visualPositionToXY(selectionEndPosition).x
: xEnd;
paintBackground(
g,
myEditor.getColorsScheme().getColor(EditorColors.SELECTION_BACKGROUND_COLOR),
startX,
y,
endX - startX);
}
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 boolean paintPlaceholderText(Graphics2D g) {
CharSequence hintText = myEditor.getPlaceholder();
EditorComponentImpl editorComponent = myEditor.getContentComponent();
if (myDocument.getTextLength() > 0
|| hintText == null
|| hintText.length() == 0
|| KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner() == editorComponent
&& !myEditor.getShowPlaceholderWhenFocused()) {
return false;
}
hintText =
SwingUtilities.layoutCompoundLabel(
g.getFontMetrics(),
hintText.toString(),
null,
0,
0,
0,
0,
editorComponent.getBounds(),
new Rectangle(),
new Rectangle(),
0);
g.setColor(myEditor.getFoldingModel().getPlaceholderAttributes().getForegroundColor());
g.setFont(myEditor.getColorsScheme().getFont(EditorFontType.PLAIN));
g.drawString(hintText.toString(), 0, myView.getAscent());
return true;
}
public SoftWrapModelImpl(@NotNull EditorImpl editor) {
myEditor = editor;
myStorage = new SoftWrapsStorage();
myPainter = new CompositeSoftWrapPainter(editor);
myEditorTextRepresentationHelper = new DefaultEditorTextRepresentationHelper(editor);
myDataMapper = new CachingSoftWrapDataMapper(editor, myStorage);
myApplianceManager = new SoftWrapApplianceManager(myStorage, editor, myPainter, myDataMapper);
myVisualSizeManager = new SoftWrapAwareVisualSizeManager(myPainter);
myApplianceManager.addListener(myVisualSizeManager);
myApplianceManager.addListener(
new SoftWrapAwareDocumentParsingListenerAdapter() {
@Override
public void recalculationEnds() {
for (SoftWrapChangeListener listener : mySoftWrapListeners) {
listener.recalculationEnds();
}
}
});
myUseSoftWraps = areSoftWrapsEnabledInEditor();
myEditor.getColorsScheme().getFontPreferences().copyTo(myFontPreferences);
editor.addPropertyChangeListener(this, this);
myApplianceManager.addListener(myDataMapper);
}
private void paintBackground(Graphics2D g, Color color, float x, int y, float width) {
if (width <= 0
|| color == null
|| color.equals(myEditor.getColorsScheme().getDefaultBackground())
|| color.equals(myEditor.getBackgroundColor())) return;
g.setColor(color);
g.fillRect((int) x, y, (int) width, myView.getLineHeight());
}
private void paintCaret(Graphics2D g_) {
EditorImpl.CaretRectangle[] locations = myEditor.getCaretLocations(true);
if (locations == null) return;
Graphics2D g = IdeBackgroundUtil.getOriginalGraphics(g_);
int lineHeight = myView.getLineHeight();
EditorSettings settings = myEditor.getSettings();
Color caretColor = myEditor.getColorsScheme().getColor(EditorColors.CARET_COLOR);
if (caretColor == null) caretColor = new JBColor(CARET_DARK, CARET_LIGHT);
g.setColor(caretColor);
for (EditorImpl.CaretRectangle location : locations) {
int x = location.myPoint.x;
int y = location.myPoint.y;
Caret caret = location.myCaret;
boolean isRtl = location.myIsRtl;
if (myEditor.isInsertMode() != settings.isBlockCursor()) {
int lineWidth = JBUI.scale(settings.getLineCursorWidth());
g.fillRect(x, y, lineWidth, lineHeight);
if (myDocument.getTextLength() > 0
&& caret != null
&& !myView.getLineLayout(caret.getLogicalPosition().line).isLtr()) {
g.fillPolygon(
new int[] {
isRtl ? x + lineWidth : x,
isRtl ? x + lineWidth - CARET_DIRECTION_MARK_SIZE : x + CARET_DIRECTION_MARK_SIZE,
isRtl ? x + lineWidth : x
},
new int[] {y, y, y + CARET_DIRECTION_MARK_SIZE},
3);
}
} else {
int width = location.myWidth;
int startX = Math.max(0, isRtl ? x - width : x);
g.fillRect(startX, y, width, lineHeight - 1);
if (myDocument.getTextLength() > 0 && caret != null) {
int targetVisualColumn = caret.getVisualPosition().column;
for (VisualLineFragmentsIterator.Fragment fragment :
VisualLineFragmentsIterator.create(myView, caret.getVisualLineStart(), false)) {
int startVisualColumn = fragment.getStartVisualColumn();
int endVisualColumn = fragment.getEndVisualColumn();
if (startVisualColumn < targetVisualColumn && endVisualColumn > targetVisualColumn
|| startVisualColumn == targetVisualColumn && !isRtl
|| endVisualColumn == targetVisualColumn && isRtl) {
g.setColor(ColorUtil.isDark(caretColor) ? CARET_LIGHT : CARET_DARK);
fragment.draw(
g,
startX,
y + myView.getAscent(),
targetVisualColumn - startVisualColumn - (isRtl ? 1 : 0),
targetVisualColumn - startVisualColumn + (isRtl ? 0 : 1));
break;
}
}
}
}
}
}
private void paintRightMargin(Graphics g, Rectangle clip) {
EditorSettings settings = myEditor.getSettings();
Color rightMargin = myEditor.getColorsScheme().getColor(EditorColors.RIGHT_MARGIN_COLOR);
if (!settings.isRightMarginShown() || rightMargin == null) return;
int x = settings.getRightMargin(myEditor.getProject()) * myView.getPlainSpaceWidth();
g.setColor(rightMargin);
UIUtil.drawLine(g, x, clip.y, x, clip.y + clip.height);
}
public TextAttributes getTextAttributes() {
if (myTextAttributes == null) {
myTextAttributes = new TextAttributes();
myTextAttributes.setBackgroundColor(
myEditor.getColorsScheme().getColor(EditorColors.CARET_ROW_COLOR));
}
return myTextAttributes;
}
private void paintWhitespace(
Graphics2D g,
CharSequence text,
float x,
int y,
int start,
int end,
EditorImpl.LineWhitespacePaintingStrategy whitespacePaintingStrategy,
VisualLineFragmentsIterator.Fragment fragment) {
g.setColor(myEditor.getColorsScheme().getColor(EditorColors.WHITESPACES_COLOR));
boolean isRtl = fragment.isRtl();
int baseStartOffset = fragment.getStartOffset();
int startOffset = isRtl ? baseStartOffset - start : baseStartOffset + start;
for (int i = start; i < end; i++) {
int charOffset = isRtl ? baseStartOffset - i - 1 : baseStartOffset + i;
char c = text.charAt(charOffset);
if (" \t\u3000".indexOf(c) >= 0
&& whitespacePaintingStrategy.showWhitespaceAtOffset(charOffset)) {
int startX =
(int)
fragment.offsetToX(
x, startOffset, isRtl ? baseStartOffset - i : baseStartOffset + i);
int endX =
(int)
fragment.offsetToX(
x, startOffset, isRtl ? baseStartOffset - i - 1 : baseStartOffset + i + 1);
if (c == ' ') {
g.fillRect((startX + endX) / 2, y, 1, 1);
} else if (c == '\t') {
endX -= myView.getPlainSpaceWidth() / 4;
int height = myView.getCharHeight();
int halfHeight = height / 2;
int mid = y - halfHeight;
int top = y - height;
UIUtil.drawLine(g, startX, mid, endX, mid);
UIUtil.drawLine(g, endX, y, endX, top);
g.fillPolygon(
new int[] {endX - halfHeight, endX - halfHeight, endX},
new int[] {y, y - height, y - halfHeight},
3);
} else if (c == '\u3000') { // ideographic space
final int charHeight = myView.getCharHeight();
g.drawRect(startX + 2, y - charHeight, endX - startX - 4, charHeight);
}
}
}
}
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);
}
}
public void refreshSettings() {
myFoldTextAttributes =
myEditor.getColorsScheme().getAttributes(EditorColors.FOLDED_TEXT_ATTRIBUTES);
}
