diff options
Diffstat (limited to 'platform/platform-impl/src/com/intellij/openapi/editor/impl/CaretImpl.java')
| -rw-r--r-- | platform/platform-impl/src/com/intellij/openapi/editor/impl/CaretImpl.java | 76 |
1 files changed, 49 insertions, 27 deletions
diff --git a/platform/platform-impl/src/com/intellij/openapi/editor/impl/CaretImpl.java b/platform/platform-impl/src/com/intellij/openapi/editor/impl/CaretImpl.java index cfd039a5d504..c769f92fff78 100644 --- a/platform/platform-impl/src/com/intellij/openapi/editor/impl/CaretImpl.java +++ b/platform/platform-impl/src/com/intellij/openapi/editor/impl/CaretImpl.java @@ -62,7 +62,13 @@ public class CaretImpl extends UserDataHolderBase implements Caret { private int myVisualLineEnd; private RangeMarker savedBeforeBulkCaretMarker; private boolean mySkipChangeRequests; + /** + * Initial horizontal caret position during vertical navigation. + * Similar to {@link #myDesiredX}, but represents logical caret position (<code>getLogicalPosition().column</code>) rather than visual. + */ private int myLastColumnNumber = 0; + private int myDesiredSelectionStartColumn = -1; + private int myDesiredSelectionEndColumn = -1; /** * We check that caret is located at the target offset at the end of {@link #moveToOffset(int, boolean)} method. However, * it's possible that the following situation occurs: @@ -82,11 +88,10 @@ public class CaretImpl extends UserDataHolderBase implements Caret { */ private boolean myReportCaretMoves; /** - * There is a possible case that user defined non-monospaced font for editor. That means that various symbols have different - * visual widths. That means that if we move caret vertically it may deviate to the left/right. However, we can try to preserve - * its initial visual position when possible. + * This field holds initial horizontal caret position during vertical navigation. It's used to determine target position when + * moving to the new line. It is stored in pixels, not in columns, to account for non-monospaced fonts as well. * <p/> - * This field holds desired value for visual <code>'x'</code> caret coordinate (negative value if no coordinate should be preserved). + * Negative value means no coordinate should be preserved. */ private int myDesiredX = -1; @@ -255,10 +260,11 @@ public class CaretImpl extends UserDataHolderBase implements Caret { EditorSettings editorSettings = myEditor.getSettings(); VisualPosition visualCaret = getVisualPosition(); + int lastColumnNumber = myLastColumnNumber; int desiredX = myDesiredX; if (columnShift == 0) { if (myDesiredX < 0) { - desiredX = myEditor.visualPositionToXY(visualCaret).x; + desiredX = getCurrentX(); } } else { @@ -267,15 +273,12 @@ public class CaretImpl extends UserDataHolderBase implements Caret { int newLineNumber = visualCaret.line + lineShift; int newColumnNumber = visualCaret.column + columnShift; - if (desiredX >= 0 && !ApplicationManager.getApplication().isUnitTestMode()) { + if (desiredX >= 0) { newColumnNumber = myEditor.xyToVisualPosition(new Point(desiredX, Math.max(0, newLineNumber) * myEditor.getLineHeight())).column; } Document document = myEditor.getDocument(); - if (!editorSettings.isVirtualSpace() && columnShift == 0 && getLogicalPosition().softWrapLinesOnCurrentLogicalLine <= 0) { - newColumnNumber = supportsMultipleCarets() ? myLastColumnNumber : myEditor.getLastColumnNumber(); - } - else if (!editorSettings.isVirtualSpace() && lineShift == 0 && columnShift == 1) { + if (!editorSettings.isVirtualSpace() && lineShift == 0 && columnShift == 1) { int lastLine = document.getLineCount() - 1; if (lastLine < 0) lastLine = 0; if (EditorModificationUtil.calcAfterLineEnd(myEditor) >= 0 && @@ -303,18 +306,21 @@ public class CaretImpl extends UserDataHolderBase implements Caret { // We want to move caret to the first column if it's already located at the first line and 'Up' is pressed. newColumnNumber = 0; desiredX = -1; + lastColumnNumber = -1; } VisualPosition pos = new VisualPosition(newLineNumber, newColumnNumber); - int lastColumnNumber = newColumnNumber; if (!myEditor.getSoftWrapModel().isInsideSoftWrap(pos)) { LogicalPosition log = myEditor.visualToLogicalPosition(new VisualPosition(newLineNumber, newColumnNumber)); int offset = myEditor.logicalPositionToOffset(log); if (offset >= document.getTextLength()) { int lastOffsetColumn = myEditor.offsetToVisualPosition(document.getTextLength()).column; // We want to move caret to the last column if if it's located at the last line and 'Down' is pressed. - newColumnNumber = lastColumnNumber = Math.max(lastOffsetColumn, newColumnNumber); - desiredX = -1; + if (lastOffsetColumn > newColumnNumber) { + newColumnNumber = lastOffsetColumn; + desiredX = -1; + lastColumnNumber = -1; + } } if (!editorSettings.isCaretInsideTabs()) { CharSequence text = document.getCharsSequence(); @@ -353,7 +359,7 @@ public class CaretImpl extends UserDataHolderBase implements Caret { } else { moveToVisualPosition(pos); - if (!editorSettings.isVirtualSpace() && columnShift == 0) { + if (!editorSettings.isVirtualSpace() && columnShift == 0 && lastColumnNumber >=0) { setLastColumnNumber(lastColumnNumber); } } @@ -550,6 +556,7 @@ public class CaretImpl extends UserDataHolderBase implements Caret { } setLastColumnNumber(myLogicalCaret.column); + myDesiredSelectionStartColumn = myDesiredSelectionEndColumn = -1; myVisibleCaret = myEditor.logicalToVisualPosition(myLogicalCaret); updateOffsetsFromLogicalPosition(); @@ -705,7 +712,8 @@ public class CaretImpl extends UserDataHolderBase implements Caret { myEditor.getFoldingModel().flushCaretPosition(); - setLastColumnNumber(column); + setLastColumnNumber(myLogicalCaret.column); + myDesiredSelectionStartColumn = myDesiredSelectionEndColumn = -1; myEditor.updateCaretCursor(); requestRepaint(oldInfo); @@ -962,6 +970,8 @@ public class CaretImpl extends UserDataHolderBase implements Caret { clone.myLastColumnNumber = this.myLastColumnNumber; clone.myReportCaretMoves = this.myReportCaretMoves; clone.myDesiredX = this.myDesiredX; + clone.myDesiredSelectionStartColumn = -1; + clone.myDesiredSelectionEndColumn = -1; return clone; } @@ -971,10 +981,10 @@ public class CaretImpl extends UserDataHolderBase implements Caret { assertIsDispatchThread(); int lineShift = above ? -1 : 1; final CaretImpl clone = cloneWithoutSelection(); - final int newSelectionStartOffset, newSelectionEndOffset; + final int newSelectionStartOffset, newSelectionEndOffset, newSelectionStartColumn, newSelectionEndColumn; final VisualPosition newSelectionStartPosition, newSelectionEndPosition; final boolean hasNewSelection; - if (hasSelection()) { + if (hasSelection() || myDesiredSelectionStartColumn >=0 || myDesiredSelectionEndColumn >= 0) { VisualPosition startPosition = getSelectionStartPosition(); VisualPosition endPosition = getSelectionEndPosition(); VisualPosition leadPosition = getLeadSelectionPosition(); @@ -982,8 +992,10 @@ public class CaretImpl extends UserDataHolderBase implements Caret { boolean leadIsEnd = leadPosition.equals(endPosition); LogicalPosition selectionStart = myEditor.visualToLogicalPosition(leadIsStart || leadIsEnd ? leadPosition : startPosition); LogicalPosition selectionEnd = myEditor.visualToLogicalPosition(leadIsEnd ? startPosition : endPosition); - LogicalPosition newSelectionStart = truncate(new LogicalPosition(selectionStart.line + lineShift, selectionStart.column)); - LogicalPosition newSelectionEnd = truncate(new LogicalPosition(selectionEnd.line + lineShift, selectionEnd.column)); + newSelectionStartColumn = myDesiredSelectionStartColumn < 0 ? selectionStart.column : myDesiredSelectionStartColumn; + newSelectionEndColumn = myDesiredSelectionEndColumn < 0 ? selectionEnd.column : myDesiredSelectionEndColumn; + LogicalPosition newSelectionStart = truncate(selectionStart.line + lineShift, newSelectionStartColumn); + LogicalPosition newSelectionEnd = truncate(selectionEnd.line + lineShift, newSelectionEndColumn); newSelectionStartOffset = myEditor.logicalPositionToOffset(newSelectionStart); newSelectionEndOffset = myEditor.logicalPositionToOffset(newSelectionEnd); newSelectionStartPosition = myEditor.logicalToVisualPosition(newSelectionStart); @@ -996,6 +1008,8 @@ public class CaretImpl extends UserDataHolderBase implements Caret { newSelectionStartPosition = null; newSelectionEndPosition = null; hasNewSelection = false; + newSelectionStartColumn = -1; + newSelectionEndColumn = -1; } LogicalPosition oldPosition = getLogicalPosition(); int newLine = oldPosition.line + lineShift; @@ -1003,7 +1017,12 @@ public class CaretImpl extends UserDataHolderBase implements Caret { Disposer.dispose(clone); return null; } - clone.moveToLogicalPosition(new LogicalPosition(newLine, oldPosition.column), false, null, false); + clone.moveToLogicalPosition(new LogicalPosition(newLine, myLastColumnNumber), false, null, false); + clone.myLastColumnNumber = myLastColumnNumber; + clone.myDesiredX = myDesiredX >= 0 ? myDesiredX : getCurrentX(); + clone.myDesiredSelectionStartColumn = newSelectionStartColumn; + clone.myDesiredSelectionEndColumn = newSelectionEndColumn; + if (myEditor.getCaretModel().addCaret(clone)) { if (hasNewSelection) { myEditor.getCaretModel().doWithCaretMerging(new Runnable() { @@ -1025,15 +1044,15 @@ public class CaretImpl extends UserDataHolderBase implements Caret { } } - private LogicalPosition truncate(LogicalPosition position) { - if (position.line < 0) { + private LogicalPosition truncate(int line, int column) { + if (line < 0) { return new LogicalPosition(0, 0); } - else if (position.line >= myEditor.getDocument().getLineCount()) { + else if (line >= myEditor.getDocument().getLineCount()) { return myEditor.offsetToLogicalPosition(myEditor.getDocument().getTextLength()); } else { - return position; + return new LogicalPosition(line, column); } } @@ -1396,9 +1415,8 @@ public class CaretImpl extends UserDataHolderBase implements Caret { } try { - EditorActionHandler handler = EditorActionManager.getInstance().getActionHandler( - IdeActions.ACTION_EDITOR_SELECT_WORD_AT_CARET); - handler.execute(myEditor, myEditor.getDataContext()); + EditorActionHandler handler = EditorActionManager.getInstance().getActionHandler(IdeActions.ACTION_EDITOR_SELECT_WORD_AT_CARET); + handler.execute(myEditor, CaretImpl.this, myEditor.getDataContext()); } finally { if (needOverrideSetting) { @@ -1453,6 +1471,10 @@ public class CaretImpl extends UserDataHolderBase implements Caret { return marker != null && marker.isValid() && isVirtualSelectionEnabled() && myEndVirtualOffset > myStartVirtualOffset; } + private int getCurrentX() { + return myEditor.visualPositionToXY(myVisibleCaret).x; + } + @Override @NotNull public EditorImpl getEditor() { |