Files
azuredatastudio/src/vs/editor/common/viewModel/splitLinesCollection.ts
2019-02-21 17:56:04 -08:00

1432 lines
52 KiB
TypeScript

/*---------------------------------------------------------------------------------------------
* Copyright (c) Microsoft Corporation. All rights reserved.
* Licensed under the Source EULA. See License.txt in the project root for license information.
*--------------------------------------------------------------------------------------------*/
import { WrappingIndent } from 'vs/editor/common/config/editorOptions';
import { LineTokens } from 'vs/editor/common/core/lineTokens';
import { Position } from 'vs/editor/common/core/position';
import { IRange, Range } from 'vs/editor/common/core/range';
import { EndOfLinePreference, IActiveIndentGuideInfo, IModelDecoration, IModelDeltaDecoration, ITextModel } from 'vs/editor/common/model';
import { ModelDecorationOptions, ModelDecorationOverviewRulerOptions } from 'vs/editor/common/model/textModel';
import * as viewEvents from 'vs/editor/common/view/viewEvents';
import { PrefixSumComputerWithCache } from 'vs/editor/common/viewModel/prefixSumComputer';
import { ICoordinatesConverter, IOverviewRulerDecorations, ViewLineData } from 'vs/editor/common/viewModel/viewModel';
import { ITheme } from 'vs/platform/theme/common/themeService';
export class OutputPosition {
_outputPositionBrand: void;
outputLineIndex: number;
outputOffset: number;
constructor(outputLineIndex: number, outputOffset: number) {
this.outputLineIndex = outputLineIndex;
this.outputOffset = outputOffset;
}
}
export interface ILineMapping {
getOutputLineCount(): number;
getWrappedLinesIndent(): string;
getInputOffsetOfOutputPosition(outputLineIndex: number, outputOffset: number): number;
getOutputPositionOfInputOffset(inputOffset: number): OutputPosition;
}
export interface ILineMapperFactory {
createLineMapping(lineText: string, tabSize: number, wrappingColumn: number, columnsForFullWidthChar: number, wrappingIndent: WrappingIndent): ILineMapping | null;
}
export interface ISimpleModel {
getLineTokens(lineNumber: number): LineTokens;
getLineContent(lineNumber: number): string;
getLineLength(lineNumber: number): number;
getLineMinColumn(lineNumber: number): number;
getLineMaxColumn(lineNumber: number): number;
getValueInRange(range: IRange, eol?: EndOfLinePreference): string;
}
export interface ISplitLine {
isVisible(): boolean;
setVisible(isVisible: boolean): ISplitLine;
getViewLineCount(): number;
getViewLineContent(model: ISimpleModel, modelLineNumber: number, outputLineIndex: number): string;
getViewLineLength(model: ISimpleModel, modelLineNumber: number, outputLineIndex: number): number;
getViewLineMinColumn(model: ISimpleModel, modelLineNumber: number, outputLineIndex: number): number;
getViewLineMaxColumn(model: ISimpleModel, modelLineNumber: number, outputLineIndex: number): number;
getViewLineData(model: ISimpleModel, modelLineNumber: number, outputLineIndex: number): ViewLineData;
getViewLinesData(model: ISimpleModel, modelLineNumber: number, fromOuputLineIndex: number, toOutputLineIndex: number, globalStartIndex: number, needed: boolean[], result: (ViewLineData | null)[]): void;
getModelColumnOfViewPosition(outputLineIndex: number, outputColumn: number): number;
getViewPositionOfModelPosition(deltaLineNumber: number, inputColumn: number): Position;
getViewLineNumberOfModelPosition(deltaLineNumber: number, inputColumn: number): number;
}
export interface IViewModelLinesCollection {
createCoordinatesConverter(): ICoordinatesConverter;
dispose(): void;
setWrappingSettings(wrappingIndent: WrappingIndent, wrappingColumn: number, columnsForFullWidthChar: number): boolean;
setTabSize(newTabSize: number): boolean;
getHiddenAreas(): Range[];
setHiddenAreas(_ranges: Range[]): boolean;
onModelFlushed(): void;
onModelLinesDeleted(versionId: number, fromLineNumber: number, toLineNumber: number): viewEvents.ViewLinesDeletedEvent | null;
onModelLinesInserted(versionId: number, fromLineNumber: number, toLineNumber: number, text: string[]): viewEvents.ViewLinesInsertedEvent | null;
onModelLineChanged(versionId: number, lineNumber: number, newText: string): [boolean, viewEvents.ViewLinesChangedEvent | null, viewEvents.ViewLinesInsertedEvent | null, viewEvents.ViewLinesDeletedEvent | null];
acceptVersionId(versionId: number): void;
getViewLineCount(): number;
warmUpLookupCache(viewStartLineNumber: number, viewEndLineNumber: number): void;
getActiveIndentGuide(viewLineNumber: number, minLineNumber: number, maxLineNumber: number): IActiveIndentGuideInfo;
getViewLinesIndentGuides(viewStartLineNumber: number, viewEndLineNumber: number): number[];
getViewLineContent(viewLineNumber: number): string;
getViewLineLength(viewLineNumber: number): number;
getViewLineMinColumn(viewLineNumber: number): number;
getViewLineMaxColumn(viewLineNumber: number): number;
getViewLineData(viewLineNumber: number): ViewLineData;
getViewLinesData(viewStartLineNumber: number, viewEndLineNumber: number, needed: boolean[]): (ViewLineData | null)[];
getAllOverviewRulerDecorations(ownerId: number, filterOutValidation: boolean, theme: ITheme): IOverviewRulerDecorations;
getDecorationsInRange(range: Range, ownerId: number, filterOutValidation: boolean): IModelDecoration[];
}
export class CoordinatesConverter implements ICoordinatesConverter {
private readonly _lines: SplitLinesCollection;
constructor(lines: SplitLinesCollection) {
this._lines = lines;
}
// View -> Model conversion and related methods
public convertViewPositionToModelPosition(viewPosition: Position): Position {
return this._lines.convertViewPositionToModelPosition(viewPosition.lineNumber, viewPosition.column);
}
public convertViewRangeToModelRange(viewRange: Range): Range {
let start = this._lines.convertViewPositionToModelPosition(viewRange.startLineNumber, viewRange.startColumn);
let end = this._lines.convertViewPositionToModelPosition(viewRange.endLineNumber, viewRange.endColumn);
return new Range(start.lineNumber, start.column, end.lineNumber, end.column);
}
public validateViewPosition(viewPosition: Position, expectedModelPosition: Position): Position {
return this._lines.validateViewPosition(viewPosition.lineNumber, viewPosition.column, expectedModelPosition);
}
public validateViewRange(viewRange: Range, expectedModelRange: Range): Range {
const validViewStart = this._lines.validateViewPosition(viewRange.startLineNumber, viewRange.startColumn, expectedModelRange.getStartPosition());
const validViewEnd = this._lines.validateViewPosition(viewRange.endLineNumber, viewRange.endColumn, expectedModelRange.getEndPosition());
return new Range(validViewStart.lineNumber, validViewStart.column, validViewEnd.lineNumber, validViewEnd.column);
}
// Model -> View conversion and related methods
public convertModelPositionToViewPosition(modelPosition: Position): Position {
return this._lines.convertModelPositionToViewPosition(modelPosition.lineNumber, modelPosition.column);
}
public convertModelRangeToViewRange(modelRange: Range): Range {
let start = this._lines.convertModelPositionToViewPosition(modelRange.startLineNumber, modelRange.startColumn);
let end = this._lines.convertModelPositionToViewPosition(modelRange.endLineNumber, modelRange.endColumn);
return new Range(start.lineNumber, start.column, end.lineNumber, end.column);
}
public modelPositionIsVisible(modelPosition: Position): boolean {
return this._lines.modelPositionIsVisible(modelPosition.lineNumber, modelPosition.column);
}
}
const enum IndentGuideRepeatOption {
BlockNone = 0,
BlockSubsequent = 1,
BlockAll = 2
}
export class SplitLinesCollection implements IViewModelLinesCollection {
private model: ITextModel;
private _validModelVersionId: number;
private wrappingColumn: number;
private columnsForFullWidthChar: number;
private wrappingIndent: WrappingIndent;
private tabSize: number;
private lines: ISplitLine[];
private prefixSumComputer: PrefixSumComputerWithCache;
private linePositionMapperFactory: ILineMapperFactory;
private hiddenAreasIds: string[];
constructor(model: ITextModel, linePositionMapperFactory: ILineMapperFactory, tabSize: number, wrappingColumn: number, columnsForFullWidthChar: number, wrappingIndent: WrappingIndent) {
this.model = model;
this._validModelVersionId = -1;
this.tabSize = tabSize;
this.wrappingColumn = wrappingColumn;
this.columnsForFullWidthChar = columnsForFullWidthChar;
this.wrappingIndent = wrappingIndent;
this.linePositionMapperFactory = linePositionMapperFactory;
this._constructLines(true);
}
public dispose(): void {
this.hiddenAreasIds = this.model.deltaDecorations(this.hiddenAreasIds, []);
}
public createCoordinatesConverter(): ICoordinatesConverter {
return new CoordinatesConverter(this);
}
private _ensureValidState(): void {
let modelVersion = this.model.getVersionId();
if (modelVersion !== this._validModelVersionId) {
// This is pretty bad, it means we lost track of the model...
throw new Error(`ViewModel is out of sync with Model!`);
}
if (this.lines.length !== this.model.getLineCount()) {
// This is pretty bad, it means we lost track of the model...
this._constructLines(false);
}
}
private _constructLines(resetHiddenAreas: boolean): void {
this.lines = [];
if (resetHiddenAreas) {
this.hiddenAreasIds = [];
}
let linesContent = this.model.getLinesContent();
let lineCount = linesContent.length;
let values = new Uint32Array(lineCount);
let hiddenAreas = this.hiddenAreasIds.map((areaId) => this.model.getDecorationRange(areaId)!).sort(Range.compareRangesUsingStarts);
let hiddenAreaStart = 1, hiddenAreaEnd = 0;
let hiddenAreaIdx = -1;
let nextLineNumberToUpdateHiddenArea = (hiddenAreaIdx + 1 < hiddenAreas.length) ? hiddenAreaEnd + 1 : lineCount + 2;
for (let i = 0; i < lineCount; i++) {
let lineNumber = i + 1;
if (lineNumber === nextLineNumberToUpdateHiddenArea) {
hiddenAreaIdx++;
hiddenAreaStart = hiddenAreas[hiddenAreaIdx]!.startLineNumber;
hiddenAreaEnd = hiddenAreas[hiddenAreaIdx]!.endLineNumber;
nextLineNumberToUpdateHiddenArea = (hiddenAreaIdx + 1 < hiddenAreas.length) ? hiddenAreaEnd + 1 : lineCount + 2;
}
let isInHiddenArea = (lineNumber >= hiddenAreaStart && lineNumber <= hiddenAreaEnd);
let line = createSplitLine(this.linePositionMapperFactory, linesContent[i], this.tabSize, this.wrappingColumn, this.columnsForFullWidthChar, this.wrappingIndent, !isInHiddenArea);
values[i] = line.getViewLineCount();
this.lines[i] = line;
}
this._validModelVersionId = this.model.getVersionId();
this.prefixSumComputer = new PrefixSumComputerWithCache(values);
}
public getHiddenAreas(): Range[] {
return this.hiddenAreasIds.map((decId) => {
return this.model.getDecorationRange(decId)!;
});
}
private _reduceRanges(_ranges: Range[]): Range[] {
if (_ranges.length === 0) {
return [];
}
let ranges = _ranges.map(r => this.model.validateRange(r)).sort(Range.compareRangesUsingStarts);
let result: Range[] = [];
let currentRangeStart = ranges[0].startLineNumber;
let currentRangeEnd = ranges[0].endLineNumber;
for (let i = 1, len = ranges.length; i < len; i++) {
let range = ranges[i];
if (range.startLineNumber > currentRangeEnd + 1) {
result.push(new Range(currentRangeStart, 1, currentRangeEnd, 1));
currentRangeStart = range.startLineNumber;
currentRangeEnd = range.endLineNumber;
} else if (range.endLineNumber > currentRangeEnd) {
currentRangeEnd = range.endLineNumber;
}
}
result.push(new Range(currentRangeStart, 1, currentRangeEnd, 1));
return result;
}
public setHiddenAreas(_ranges: Range[]): boolean {
let newRanges = this._reduceRanges(_ranges);
// BEGIN TODO@Martin: Please stop calling this method on each model change!
let oldRanges = this.hiddenAreasIds.map((areaId) => this.model.getDecorationRange(areaId)!).sort(Range.compareRangesUsingStarts);
if (newRanges.length === oldRanges.length) {
let hasDifference = false;
for (let i = 0; i < newRanges.length; i++) {
if (!newRanges[i].equalsRange(oldRanges[i])) {
hasDifference = true;
break;
}
}
if (!hasDifference) {
return false;
}
}
// END TODO@Martin: Please stop calling this method on each model change!
let newDecorations: IModelDeltaDecoration[] = [];
for (let i = 0; i < newRanges.length; i++) {
newDecorations.push({
range: newRanges[i],
options: ModelDecorationOptions.EMPTY
});
}
this.hiddenAreasIds = this.model.deltaDecorations(this.hiddenAreasIds, newDecorations);
let hiddenAreas = newRanges;
let hiddenAreaStart = 1, hiddenAreaEnd = 0;
let hiddenAreaIdx = -1;
let nextLineNumberToUpdateHiddenArea = (hiddenAreaIdx + 1 < hiddenAreas.length) ? hiddenAreaEnd + 1 : this.lines.length + 2;
let hasVisibleLine = false;
for (let i = 0; i < this.lines.length; i++) {
let lineNumber = i + 1;
if (lineNumber === nextLineNumberToUpdateHiddenArea) {
hiddenAreaIdx++;
hiddenAreaStart = hiddenAreas[hiddenAreaIdx].startLineNumber;
hiddenAreaEnd = hiddenAreas[hiddenAreaIdx].endLineNumber;
nextLineNumberToUpdateHiddenArea = (hiddenAreaIdx + 1 < hiddenAreas.length) ? hiddenAreaEnd + 1 : this.lines.length + 2;
}
let lineChanged = false;
if (lineNumber >= hiddenAreaStart && lineNumber <= hiddenAreaEnd) {
// Line should be hidden
if (this.lines[i].isVisible()) {
this.lines[i] = this.lines[i].setVisible(false);
lineChanged = true;
}
} else {
hasVisibleLine = true;
// Line should be visible
if (!this.lines[i].isVisible()) {
this.lines[i] = this.lines[i].setVisible(true);
lineChanged = true;
}
}
if (lineChanged) {
let newOutputLineCount = this.lines[i].getViewLineCount();
this.prefixSumComputer.changeValue(i, newOutputLineCount);
}
}
if (!hasVisibleLine) {
// Cannot have everything be hidden => reveal everything!
this.setHiddenAreas([]);
}
return true;
}
public modelPositionIsVisible(modelLineNumber: number, _modelColumn: number): boolean {
if (modelLineNumber < 1 || modelLineNumber > this.lines.length) {
// invalid arguments
return false;
}
return this.lines[modelLineNumber - 1].isVisible();
}
public setTabSize(newTabSize: number): boolean {
if (this.tabSize === newTabSize) {
return false;
}
this.tabSize = newTabSize;
this._constructLines(false);
return true;
}
public setWrappingSettings(wrappingIndent: WrappingIndent, wrappingColumn: number, columnsForFullWidthChar: number): boolean {
if (this.wrappingIndent === wrappingIndent && this.wrappingColumn === wrappingColumn && this.columnsForFullWidthChar === columnsForFullWidthChar) {
return false;
}
this.wrappingIndent = wrappingIndent;
this.wrappingColumn = wrappingColumn;
this.columnsForFullWidthChar = columnsForFullWidthChar;
this._constructLines(false);
return true;
}
public onModelFlushed(): void {
this._constructLines(true);
}
public onModelLinesDeleted(versionId: number, fromLineNumber: number, toLineNumber: number): viewEvents.ViewLinesDeletedEvent | null {
if (versionId <= this._validModelVersionId) {
// Here we check for versionId in case the lines were reconstructed in the meantime.
// We don't want to apply stale change events on top of a newer read model state.
return null;
}
let outputFromLineNumber = (fromLineNumber === 1 ? 1 : this.prefixSumComputer.getAccumulatedValue(fromLineNumber - 2) + 1);
let outputToLineNumber = this.prefixSumComputer.getAccumulatedValue(toLineNumber - 1);
this.lines.splice(fromLineNumber - 1, toLineNumber - fromLineNumber + 1);
this.prefixSumComputer.removeValues(fromLineNumber - 1, toLineNumber - fromLineNumber + 1);
return new viewEvents.ViewLinesDeletedEvent(outputFromLineNumber, outputToLineNumber);
}
public onModelLinesInserted(versionId: number, fromLineNumber: number, _toLineNumber: number, text: string[]): viewEvents.ViewLinesInsertedEvent | null {
if (versionId <= this._validModelVersionId) {
// Here we check for versionId in case the lines were reconstructed in the meantime.
// We don't want to apply stale change events on top of a newer read model state.
return null;
}
let hiddenAreas = this.getHiddenAreas();
let isInHiddenArea = false;
let testPosition = new Position(fromLineNumber, 1);
for (let i = 0; i < hiddenAreas.length; i++) {
if (hiddenAreas[i].containsPosition(testPosition)) {
isInHiddenArea = true;
break;
}
}
let outputFromLineNumber = (fromLineNumber === 1 ? 1 : this.prefixSumComputer.getAccumulatedValue(fromLineNumber - 2) + 1);
let totalOutputLineCount = 0;
let insertLines: ISplitLine[] = [];
let insertPrefixSumValues = new Uint32Array(text.length);
for (let i = 0, len = text.length; i < len; i++) {
let line = createSplitLine(this.linePositionMapperFactory, text[i], this.tabSize, this.wrappingColumn, this.columnsForFullWidthChar, this.wrappingIndent, !isInHiddenArea);
insertLines.push(line);
let outputLineCount = line.getViewLineCount();
totalOutputLineCount += outputLineCount;
insertPrefixSumValues[i] = outputLineCount;
}
// TODO@Alex: use arrays.arrayInsert
this.lines = this.lines.slice(0, fromLineNumber - 1).concat(insertLines).concat(this.lines.slice(fromLineNumber - 1));
this.prefixSumComputer.insertValues(fromLineNumber - 1, insertPrefixSumValues);
return new viewEvents.ViewLinesInsertedEvent(outputFromLineNumber, outputFromLineNumber + totalOutputLineCount - 1);
}
public onModelLineChanged(versionId: number, lineNumber: number, newText: string): [boolean, viewEvents.ViewLinesChangedEvent | null, viewEvents.ViewLinesInsertedEvent | null, viewEvents.ViewLinesDeletedEvent | null] {
if (versionId <= this._validModelVersionId) {
// Here we check for versionId in case the lines were reconstructed in the meantime.
// We don't want to apply stale change events on top of a newer read model state.
return [false, null, null, null];
}
let lineIndex = lineNumber - 1;
let oldOutputLineCount = this.lines[lineIndex].getViewLineCount();
let isVisible = this.lines[lineIndex].isVisible();
let line = createSplitLine(this.linePositionMapperFactory, newText, this.tabSize, this.wrappingColumn, this.columnsForFullWidthChar, this.wrappingIndent, isVisible);
this.lines[lineIndex] = line;
let newOutputLineCount = this.lines[lineIndex].getViewLineCount();
let lineMappingChanged = false;
let changeFrom = 0;
let changeTo = -1;
let insertFrom = 0;
let insertTo = -1;
let deleteFrom = 0;
let deleteTo = -1;
if (oldOutputLineCount > newOutputLineCount) {
changeFrom = (lineNumber === 1 ? 1 : this.prefixSumComputer.getAccumulatedValue(lineNumber - 2) + 1);
changeTo = changeFrom + newOutputLineCount - 1;
deleteFrom = changeTo + 1;
deleteTo = deleteFrom + (oldOutputLineCount - newOutputLineCount) - 1;
lineMappingChanged = true;
} else if (oldOutputLineCount < newOutputLineCount) {
changeFrom = (lineNumber === 1 ? 1 : this.prefixSumComputer.getAccumulatedValue(lineNumber - 2) + 1);
changeTo = changeFrom + oldOutputLineCount - 1;
insertFrom = changeTo + 1;
insertTo = insertFrom + (newOutputLineCount - oldOutputLineCount) - 1;
lineMappingChanged = true;
} else {
changeFrom = (lineNumber === 1 ? 1 : this.prefixSumComputer.getAccumulatedValue(lineNumber - 2) + 1);
changeTo = changeFrom + newOutputLineCount - 1;
}
this.prefixSumComputer.changeValue(lineIndex, newOutputLineCount);
const viewLinesChangedEvent = (changeFrom <= changeTo ? new viewEvents.ViewLinesChangedEvent(changeFrom, changeTo) : null);
const viewLinesInsertedEvent = (insertFrom <= insertTo ? new viewEvents.ViewLinesInsertedEvent(insertFrom, insertTo) : null);
const viewLinesDeletedEvent = (deleteFrom <= deleteTo ? new viewEvents.ViewLinesDeletedEvent(deleteFrom, deleteTo) : null);
return [lineMappingChanged, viewLinesChangedEvent, viewLinesInsertedEvent, viewLinesDeletedEvent];
}
public acceptVersionId(versionId: number): void {
this._validModelVersionId = versionId;
if (this.lines.length === 1 && !this.lines[0].isVisible()) {
// At least one line must be visible => reset hidden areas
this.setHiddenAreas([]);
}
}
public getViewLineCount(): number {
this._ensureValidState();
return this.prefixSumComputer.getTotalValue();
}
private _toValidViewLineNumber(viewLineNumber: number): number {
if (viewLineNumber < 1) {
return 1;
}
let viewLineCount = this.getViewLineCount();
if (viewLineNumber > viewLineCount) {
return viewLineCount;
}
return viewLineNumber;
}
/**
* Gives a hint that a lot of requests are about to come in for these line numbers.
*/
public warmUpLookupCache(viewStartLineNumber: number, viewEndLineNumber: number): void {
this.prefixSumComputer.warmUpCache(viewStartLineNumber - 1, viewEndLineNumber - 1);
}
public getActiveIndentGuide(viewLineNumber: number, minLineNumber: number, maxLineNumber: number): IActiveIndentGuideInfo {
this._ensureValidState();
viewLineNumber = this._toValidViewLineNumber(viewLineNumber);
minLineNumber = this._toValidViewLineNumber(minLineNumber);
maxLineNumber = this._toValidViewLineNumber(maxLineNumber);
const modelPosition = this.convertViewPositionToModelPosition(viewLineNumber, this.getViewLineMinColumn(viewLineNumber));
const modelMinPosition = this.convertViewPositionToModelPosition(minLineNumber, this.getViewLineMinColumn(minLineNumber));
const modelMaxPosition = this.convertViewPositionToModelPosition(maxLineNumber, this.getViewLineMinColumn(maxLineNumber));
const result = this.model.getActiveIndentGuide(modelPosition.lineNumber, modelMinPosition.lineNumber, modelMaxPosition.lineNumber);
const viewStartPosition = this.convertModelPositionToViewPosition(result.startLineNumber, 1);
const viewEndPosition = this.convertModelPositionToViewPosition(result.endLineNumber, this.model.getLineMaxColumn(result.endLineNumber));
return {
startLineNumber: viewStartPosition.lineNumber,
endLineNumber: viewEndPosition.lineNumber,
indent: result.indent
};
}
public getViewLinesIndentGuides(viewStartLineNumber: number, viewEndLineNumber: number): number[] {
this._ensureValidState();
viewStartLineNumber = this._toValidViewLineNumber(viewStartLineNumber);
viewEndLineNumber = this._toValidViewLineNumber(viewEndLineNumber);
const modelStart = this.convertViewPositionToModelPosition(viewStartLineNumber, this.getViewLineMinColumn(viewStartLineNumber));
const modelEnd = this.convertViewPositionToModelPosition(viewEndLineNumber, this.getViewLineMaxColumn(viewEndLineNumber));
let result: number[] = [];
let resultRepeatCount: number[] = [];
let resultRepeatOption: IndentGuideRepeatOption[] = [];
const modelStartLineIndex = modelStart.lineNumber - 1;
const modelEndLineIndex = modelEnd.lineNumber - 1;
let reqStart: Position | null = null;
for (let modelLineIndex = modelStartLineIndex; modelLineIndex <= modelEndLineIndex; modelLineIndex++) {
const line = this.lines[modelLineIndex];
if (line.isVisible()) {
let viewLineStartIndex = line.getViewLineNumberOfModelPosition(0, modelLineIndex === modelStartLineIndex ? modelStart.column : 1);
let viewLineEndIndex = line.getViewLineNumberOfModelPosition(0, this.model.getLineMaxColumn(modelLineIndex + 1));
let count = viewLineEndIndex - viewLineStartIndex + 1;
let option = IndentGuideRepeatOption.BlockNone;
if (count > 1 && line.getViewLineMinColumn(this.model, modelLineIndex + 1, viewLineEndIndex) === 1) {
// wrapped lines should block indent guides
option = (viewLineStartIndex === 0 ? IndentGuideRepeatOption.BlockSubsequent : IndentGuideRepeatOption.BlockAll);
}
resultRepeatCount.push(count);
resultRepeatOption.push(option);
// merge into previous request
if (reqStart === null) {
reqStart = new Position(modelLineIndex + 1, 0);
}
} else {
// hit invisible line => flush request
if (reqStart !== null) {
result = result.concat(this.model.getLinesIndentGuides(reqStart.lineNumber, modelLineIndex));
reqStart = null;
}
}
}
if (reqStart !== null) {
result = result.concat(this.model.getLinesIndentGuides(reqStart.lineNumber, modelEnd.lineNumber));
reqStart = null;
}
const viewLineCount = viewEndLineNumber - viewStartLineNumber + 1;
let viewIndents = new Array<number>(viewLineCount);
let currIndex = 0;
for (let i = 0, len = result.length; i < len; i++) {
let value = result[i];
let count = Math.min(viewLineCount - currIndex, resultRepeatCount[i]);
let option = resultRepeatOption[i];
let blockAtIndex: number;
if (option === IndentGuideRepeatOption.BlockAll) {
blockAtIndex = 0;
} else if (option === IndentGuideRepeatOption.BlockSubsequent) {
blockAtIndex = 1;
} else {
blockAtIndex = count;
}
for (let j = 0; j < count; j++) {
if (j === blockAtIndex) {
value = 0;
}
viewIndents[currIndex++] = value;
}
}
return viewIndents;
}
public getViewLineContent(viewLineNumber: number): string {
this._ensureValidState();
viewLineNumber = this._toValidViewLineNumber(viewLineNumber);
let r = this.prefixSumComputer.getIndexOf(viewLineNumber - 1);
let lineIndex = r.index;
let remainder = r.remainder;
return this.lines[lineIndex].getViewLineContent(this.model, lineIndex + 1, remainder);
}
public getViewLineLength(viewLineNumber: number): number {
this._ensureValidState();
viewLineNumber = this._toValidViewLineNumber(viewLineNumber);
let r = this.prefixSumComputer.getIndexOf(viewLineNumber - 1);
let lineIndex = r.index;
let remainder = r.remainder;
return this.lines[lineIndex].getViewLineLength(this.model, lineIndex + 1, remainder);
}
public getViewLineMinColumn(viewLineNumber: number): number {
this._ensureValidState();
viewLineNumber = this._toValidViewLineNumber(viewLineNumber);
let r = this.prefixSumComputer.getIndexOf(viewLineNumber - 1);
let lineIndex = r.index;
let remainder = r.remainder;
return this.lines[lineIndex].getViewLineMinColumn(this.model, lineIndex + 1, remainder);
}
public getViewLineMaxColumn(viewLineNumber: number): number {
this._ensureValidState();
viewLineNumber = this._toValidViewLineNumber(viewLineNumber);
let r = this.prefixSumComputer.getIndexOf(viewLineNumber - 1);
let lineIndex = r.index;
let remainder = r.remainder;
return this.lines[lineIndex].getViewLineMaxColumn(this.model, lineIndex + 1, remainder);
}
public getViewLineData(viewLineNumber: number): ViewLineData {
this._ensureValidState();
viewLineNumber = this._toValidViewLineNumber(viewLineNumber);
let r = this.prefixSumComputer.getIndexOf(viewLineNumber - 1);
let lineIndex = r.index;
let remainder = r.remainder;
return this.lines[lineIndex].getViewLineData(this.model, lineIndex + 1, remainder);
}
public getViewLinesData(viewStartLineNumber: number, viewEndLineNumber: number, needed: boolean[]): ViewLineData[] {
this._ensureValidState();
viewStartLineNumber = this._toValidViewLineNumber(viewStartLineNumber);
viewEndLineNumber = this._toValidViewLineNumber(viewEndLineNumber);
let start = this.prefixSumComputer.getIndexOf(viewStartLineNumber - 1);
let viewLineNumber = viewStartLineNumber;
let startModelLineIndex = start.index;
let startRemainder = start.remainder;
let result: ViewLineData[] = [];
for (let modelLineIndex = startModelLineIndex, len = this.model.getLineCount(); modelLineIndex < len; modelLineIndex++) {
let line = this.lines[modelLineIndex];
if (!line.isVisible()) {
continue;
}
let fromViewLineIndex = (modelLineIndex === startModelLineIndex ? startRemainder : 0);
let remainingViewLineCount = line.getViewLineCount() - fromViewLineIndex;
let lastLine = false;
if (viewLineNumber + remainingViewLineCount > viewEndLineNumber) {
lastLine = true;
remainingViewLineCount = viewEndLineNumber - viewLineNumber + 1;
}
let toViewLineIndex = fromViewLineIndex + remainingViewLineCount;
line.getViewLinesData(this.model, modelLineIndex + 1, fromViewLineIndex, toViewLineIndex, viewLineNumber - viewStartLineNumber, needed, result);
viewLineNumber += remainingViewLineCount;
if (lastLine) {
break;
}
}
return result;
}
public validateViewPosition(viewLineNumber: number, viewColumn: number, expectedModelPosition: Position): Position {
this._ensureValidState();
viewLineNumber = this._toValidViewLineNumber(viewLineNumber);
let r = this.prefixSumComputer.getIndexOf(viewLineNumber - 1);
let lineIndex = r.index;
let remainder = r.remainder;
let line = this.lines[lineIndex];
let minColumn = line.getViewLineMinColumn(this.model, lineIndex + 1, remainder);
let maxColumn = line.getViewLineMaxColumn(this.model, lineIndex + 1, remainder);
if (viewColumn < minColumn) {
viewColumn = minColumn;
}
if (viewColumn > maxColumn) {
viewColumn = maxColumn;
}
let computedModelColumn = line.getModelColumnOfViewPosition(remainder, viewColumn);
let computedModelPosition = this.model.validatePosition(new Position(lineIndex + 1, computedModelColumn));
if (computedModelPosition.equals(expectedModelPosition)) {
return new Position(viewLineNumber, viewColumn);
}
return this.convertModelPositionToViewPosition(expectedModelPosition.lineNumber, expectedModelPosition.column);
}
public convertViewPositionToModelPosition(viewLineNumber: number, viewColumn: number): Position {
this._ensureValidState();
viewLineNumber = this._toValidViewLineNumber(viewLineNumber);
let r = this.prefixSumComputer.getIndexOf(viewLineNumber - 1);
let lineIndex = r.index;
let remainder = r.remainder;
let inputColumn = this.lines[lineIndex].getModelColumnOfViewPosition(remainder, viewColumn);
// console.log('out -> in ' + viewLineNumber + ',' + viewColumn + ' ===> ' + (lineIndex+1) + ',' + inputColumn);
return this.model.validatePosition(new Position(lineIndex + 1, inputColumn));
}
public convertModelPositionToViewPosition(_modelLineNumber: number, _modelColumn: number): Position {
this._ensureValidState();
let validPosition = this.model.validatePosition(new Position(_modelLineNumber, _modelColumn));
let inputLineNumber = validPosition.lineNumber;
let inputColumn = validPosition.column;
let lineIndex = inputLineNumber - 1, lineIndexChanged = false;
while (lineIndex > 0 && !this.lines[lineIndex].isVisible()) {
lineIndex--;
lineIndexChanged = true;
}
if (lineIndex === 0 && !this.lines[lineIndex].isVisible()) {
// Could not reach a real line
// console.log('in -> out ' + inputLineNumber + ',' + inputColumn + ' ===> ' + 1 + ',' + 1);
return new Position(1, 1);
}
let deltaLineNumber = 1 + (lineIndex === 0 ? 0 : this.prefixSumComputer.getAccumulatedValue(lineIndex - 1));
let r: Position;
if (lineIndexChanged) {
r = this.lines[lineIndex].getViewPositionOfModelPosition(deltaLineNumber, this.model.getLineMaxColumn(lineIndex + 1));
} else {
r = this.lines[inputLineNumber - 1].getViewPositionOfModelPosition(deltaLineNumber, inputColumn);
}
// console.log('in -> out ' + inputLineNumber + ',' + inputColumn + ' ===> ' + r.lineNumber + ',' + r);
return r;
}
private _getViewLineNumberForModelPosition(inputLineNumber: number, inputColumn: number): number {
let lineIndex = inputLineNumber - 1;
if (this.lines[lineIndex].isVisible()) {
// this model line is visible
const deltaLineNumber = 1 + (lineIndex === 0 ? 0 : this.prefixSumComputer.getAccumulatedValue(lineIndex - 1));
return this.lines[lineIndex].getViewLineNumberOfModelPosition(deltaLineNumber, inputColumn);
}
// this model line is not visible
while (lineIndex > 0 && !this.lines[lineIndex].isVisible()) {
lineIndex--;
}
if (lineIndex === 0 && !this.lines[lineIndex].isVisible()) {
// Could not reach a real line
return 1;
}
const deltaLineNumber = 1 + (lineIndex === 0 ? 0 : this.prefixSumComputer.getAccumulatedValue(lineIndex - 1));
return this.lines[lineIndex].getViewLineNumberOfModelPosition(deltaLineNumber, this.model.getLineMaxColumn(lineIndex + 1));
}
public getAllOverviewRulerDecorations(ownerId: number, filterOutValidation: boolean, theme: ITheme): IOverviewRulerDecorations {
const decorations = this.model.getOverviewRulerDecorations(ownerId, filterOutValidation);
const result = new OverviewRulerDecorations();
for (let i = 0, len = decorations.length; i < len; i++) {
const decoration = decorations[i];
const opts = <ModelDecorationOverviewRulerOptions>decoration.options.overviewRuler;
const lane = opts ? opts.position : 0;
if (lane === 0) {
continue;
}
const color = opts.getColor(theme);
const viewStartLineNumber = this._getViewLineNumberForModelPosition(decoration.range.startLineNumber, decoration.range.startColumn);
const viewEndLineNumber = this._getViewLineNumberForModelPosition(decoration.range.endLineNumber, decoration.range.endColumn);
result.accept(color, viewStartLineNumber, viewEndLineNumber, lane);
}
return result.result;
}
public getDecorationsInRange(range: Range, ownerId: number, filterOutValidation: boolean): IModelDecoration[] {
const modelStart = this.convertViewPositionToModelPosition(range.startLineNumber, range.startColumn);
const modelEnd = this.convertViewPositionToModelPosition(range.endLineNumber, range.endColumn);
if (modelEnd.lineNumber - modelStart.lineNumber <= range.endLineNumber - range.startLineNumber) {
// most likely there are no hidden lines => fast path
// fetch decorations from column 1 to cover the case of wrapped lines that have whole line decorations at column 1
return this.model.getDecorationsInRange(new Range(modelStart.lineNumber, 1, modelEnd.lineNumber, modelEnd.column), ownerId, filterOutValidation);
}
let result: IModelDecoration[] = [];
const modelStartLineIndex = modelStart.lineNumber - 1;
const modelEndLineIndex = modelEnd.lineNumber - 1;
let reqStart: Position | null = null;
for (let modelLineIndex = modelStartLineIndex; modelLineIndex <= modelEndLineIndex; modelLineIndex++) {
const line = this.lines[modelLineIndex];
if (line.isVisible()) {
// merge into previous request
if (reqStart === null) {
reqStart = new Position(modelLineIndex + 1, modelLineIndex === modelStartLineIndex ? modelStart.column : 1);
}
} else {
// hit invisible line => flush request
if (reqStart !== null) {
const maxLineColumn = this.model.getLineMaxColumn(modelLineIndex);
result = result.concat(this.model.getDecorationsInRange(new Range(reqStart.lineNumber, reqStart.column, modelLineIndex, maxLineColumn), ownerId, filterOutValidation));
reqStart = null;
}
}
}
if (reqStart !== null) {
result = result.concat(this.model.getDecorationsInRange(new Range(reqStart.lineNumber, reqStart.column, modelEnd.lineNumber, modelEnd.column), ownerId, filterOutValidation));
reqStart = null;
}
result.sort((a, b) => {
const res = Range.compareRangesUsingStarts(a.range, b.range);
if (res === 0) {
if (a.id < b.id) {
return -1;
}
if (a.id > b.id) {
return 1;
}
return 0;
}
return res;
});
// Eliminate duplicate decorations that might have intersected our visible ranges multiple times
let finalResult: IModelDecoration[] = [], finalResultLen = 0;
let prevDecId: string | null = null;
for (let i = 0, len = result.length; i < len; i++) {
const dec = result[i];
const decId = dec.id;
if (prevDecId === decId) {
// skip
continue;
}
prevDecId = decId;
finalResult[finalResultLen++] = dec;
}
return finalResult;
}
}
class VisibleIdentitySplitLine implements ISplitLine {
public static readonly INSTANCE = new VisibleIdentitySplitLine();
private constructor() { }
public isVisible(): boolean {
return true;
}
public setVisible(isVisible: boolean): ISplitLine {
if (isVisible) {
return this;
}
return InvisibleIdentitySplitLine.INSTANCE;
}
public getViewLineCount(): number {
return 1;
}
public getViewLineContent(model: ISimpleModel, modelLineNumber: number, _outputLineIndex: number): string {
return model.getLineContent(modelLineNumber);
}
public getViewLineLength(model: ISimpleModel, modelLineNumber: number, _outputLineIndex: number): number {
return model.getLineLength(modelLineNumber);
}
public getViewLineMinColumn(model: ISimpleModel, modelLineNumber: number, _outputLineIndex: number): number {
return model.getLineMinColumn(modelLineNumber);
}
public getViewLineMaxColumn(model: ISimpleModel, modelLineNumber: number, _outputLineIndex: number): number {
return model.getLineMaxColumn(modelLineNumber);
}
public getViewLineData(model: ISimpleModel, modelLineNumber: number, _outputLineIndex: number): ViewLineData {
let lineTokens = model.getLineTokens(modelLineNumber);
let lineContent = lineTokens.getLineContent();
return new ViewLineData(
lineContent,
false,
1,
lineContent.length + 1,
lineTokens.inflate()
);
}
public getViewLinesData(model: ISimpleModel, modelLineNumber: number, _fromOuputLineIndex: number, _toOutputLineIndex: number, globalStartIndex: number, needed: boolean[], result: (ViewLineData | null)[]): void {
if (!needed[globalStartIndex]) {
result[globalStartIndex] = null;
return;
}
result[globalStartIndex] = this.getViewLineData(model, modelLineNumber, 0);
}
public getModelColumnOfViewPosition(_outputLineIndex: number, outputColumn: number): number {
return outputColumn;
}
public getViewPositionOfModelPosition(deltaLineNumber: number, inputColumn: number): Position {
return new Position(deltaLineNumber, inputColumn);
}
public getViewLineNumberOfModelPosition(deltaLineNumber: number, _inputColumn: number): number {
return deltaLineNumber;
}
}
class InvisibleIdentitySplitLine implements ISplitLine {
public static readonly INSTANCE = new InvisibleIdentitySplitLine();
private constructor() { }
public isVisible(): boolean {
return false;
}
public setVisible(isVisible: boolean): ISplitLine {
if (!isVisible) {
return this;
}
return VisibleIdentitySplitLine.INSTANCE;
}
public getViewLineCount(): number {
return 0;
}
public getViewLineContent(_model: ISimpleModel, _modelLineNumber: number, _outputLineIndex: number): string {
throw new Error('Not supported');
}
public getViewLineLength(_model: ISimpleModel, _modelLineNumber: number, _outputLineIndex: number): number {
throw new Error('Not supported');
}
public getViewLineMinColumn(_model: ISimpleModel, _modelLineNumber: number, _outputLineIndex: number): number {
throw new Error('Not supported');
}
public getViewLineMaxColumn(_model: ISimpleModel, _modelLineNumber: number, _outputLineIndex: number): number {
throw new Error('Not supported');
}
public getViewLineData(_model: ISimpleModel, _modelLineNumber: number, _outputLineIndex: number): ViewLineData {
throw new Error('Not supported');
}
public getViewLinesData(_model: ISimpleModel, _modelLineNumber: number, _fromOuputLineIndex: number, _toOutputLineIndex: number, _globalStartIndex: number, _needed: boolean[], _result: ViewLineData[]): void {
throw new Error('Not supported');
}
public getModelColumnOfViewPosition(_outputLineIndex: number, _outputColumn: number): number {
throw new Error('Not supported');
}
public getViewPositionOfModelPosition(_deltaLineNumber: number, _inputColumn: number): Position {
throw new Error('Not supported');
}
public getViewLineNumberOfModelPosition(_deltaLineNumber: number, _inputColumn: number): number {
throw new Error('Not supported');
}
}
export class SplitLine implements ISplitLine {
private positionMapper: ILineMapping;
private outputLineCount: number;
private wrappedIndent: string;
private wrappedIndentLength: number;
private _isVisible: boolean;
constructor(positionMapper: ILineMapping, isVisible: boolean) {
this.positionMapper = positionMapper;
this.wrappedIndent = this.positionMapper.getWrappedLinesIndent();
this.wrappedIndentLength = this.wrappedIndent.length;
this.outputLineCount = this.positionMapper.getOutputLineCount();
this._isVisible = isVisible;
}
public isVisible(): boolean {
return this._isVisible;
}
public setVisible(isVisible: boolean): ISplitLine {
this._isVisible = isVisible;
return this;
}
public getViewLineCount(): number {
if (!this._isVisible) {
return 0;
}
return this.outputLineCount;
}
private getInputStartOffsetOfOutputLineIndex(outputLineIndex: number): number {
return this.positionMapper.getInputOffsetOfOutputPosition(outputLineIndex, 0);
}
private getInputEndOffsetOfOutputLineIndex(model: ISimpleModel, modelLineNumber: number, outputLineIndex: number): number {
if (outputLineIndex + 1 === this.outputLineCount) {
return model.getLineMaxColumn(modelLineNumber) - 1;
}
return this.positionMapper.getInputOffsetOfOutputPosition(outputLineIndex + 1, 0);
}
public getViewLineContent(model: ISimpleModel, modelLineNumber: number, outputLineIndex: number): string {
if (!this._isVisible) {
throw new Error('Not supported');
}
let startOffset = this.getInputStartOffsetOfOutputLineIndex(outputLineIndex);
let endOffset = this.getInputEndOffsetOfOutputLineIndex(model, modelLineNumber, outputLineIndex);
let r = model.getValueInRange({
startLineNumber: modelLineNumber,
startColumn: startOffset + 1,
endLineNumber: modelLineNumber,
endColumn: endOffset + 1
});
if (outputLineIndex > 0) {
r = this.wrappedIndent + r;
}
return r;
}
public getViewLineLength(model: ISimpleModel, modelLineNumber: number, outputLineIndex: number): number {
if (!this._isVisible) {
throw new Error('Not supported');
}
let startOffset = this.getInputStartOffsetOfOutputLineIndex(outputLineIndex);
let endOffset = this.getInputEndOffsetOfOutputLineIndex(model, modelLineNumber, outputLineIndex);
let r = endOffset - startOffset;
if (outputLineIndex > 0) {
r = this.wrappedIndent.length + r;
}
return r;
}
public getViewLineMinColumn(_model: ITextModel, _modelLineNumber: number, outputLineIndex: number): number {
if (!this._isVisible) {
throw new Error('Not supported');
}
if (outputLineIndex > 0) {
return this.wrappedIndentLength + 1;
}
return 1;
}
public getViewLineMaxColumn(model: ISimpleModel, modelLineNumber: number, outputLineIndex: number): number {
if (!this._isVisible) {
throw new Error('Not supported');
}
return this.getViewLineContent(model, modelLineNumber, outputLineIndex).length + 1;
}
public getViewLineData(model: ISimpleModel, modelLineNumber: number, outputLineIndex: number): ViewLineData {
if (!this._isVisible) {
throw new Error('Not supported');
}
let startOffset = this.getInputStartOffsetOfOutputLineIndex(outputLineIndex);
let endOffset = this.getInputEndOffsetOfOutputLineIndex(model, modelLineNumber, outputLineIndex);
let lineContent = model.getValueInRange({
startLineNumber: modelLineNumber,
startColumn: startOffset + 1,
endLineNumber: modelLineNumber,
endColumn: endOffset + 1
});
if (outputLineIndex > 0) {
lineContent = this.wrappedIndent + lineContent;
}
let minColumn = (outputLineIndex > 0 ? this.wrappedIndentLength + 1 : 1);
let maxColumn = lineContent.length + 1;
let continuesWithWrappedLine = (outputLineIndex + 1 < this.getViewLineCount());
let deltaStartIndex = 0;
if (outputLineIndex > 0) {
deltaStartIndex = this.wrappedIndentLength;
}
let lineTokens = model.getLineTokens(modelLineNumber);
return new ViewLineData(
lineContent,
continuesWithWrappedLine,
minColumn,
maxColumn,
lineTokens.sliceAndInflate(startOffset, endOffset, deltaStartIndex)
);
}
public getViewLinesData(model: ITextModel, modelLineNumber: number, fromOuputLineIndex: number, toOutputLineIndex: number, globalStartIndex: number, needed: boolean[], result: (ViewLineData | null)[]): void {
if (!this._isVisible) {
throw new Error('Not supported');
}
for (let outputLineIndex = fromOuputLineIndex; outputLineIndex < toOutputLineIndex; outputLineIndex++) {
let globalIndex = globalStartIndex + outputLineIndex - fromOuputLineIndex;
if (!needed[globalIndex]) {
result[globalIndex] = null;
continue;
}
result[globalIndex] = this.getViewLineData(model, modelLineNumber, outputLineIndex);
}
}
public getModelColumnOfViewPosition(outputLineIndex: number, outputColumn: number): number {
if (!this._isVisible) {
throw new Error('Not supported');
}
let adjustedColumn = outputColumn - 1;
if (outputLineIndex > 0) {
if (adjustedColumn < this.wrappedIndentLength) {
adjustedColumn = 0;
} else {
adjustedColumn -= this.wrappedIndentLength;
}
}
return this.positionMapper.getInputOffsetOfOutputPosition(outputLineIndex, adjustedColumn) + 1;
}
public getViewPositionOfModelPosition(deltaLineNumber: number, inputColumn: number): Position {
if (!this._isVisible) {
throw new Error('Not supported');
}
let r = this.positionMapper.getOutputPositionOfInputOffset(inputColumn - 1);
let outputLineIndex = r.outputLineIndex;
let outputColumn = r.outputOffset + 1;
if (outputLineIndex > 0) {
outputColumn += this.wrappedIndentLength;
}
// console.log('in -> out ' + deltaLineNumber + ',' + inputColumn + ' ===> ' + (deltaLineNumber+outputLineIndex) + ',' + outputColumn);
return new Position(deltaLineNumber + outputLineIndex, outputColumn);
}
public getViewLineNumberOfModelPosition(deltaLineNumber: number, inputColumn: number): number {
if (!this._isVisible) {
throw new Error('Not supported');
}
const r = this.positionMapper.getOutputPositionOfInputOffset(inputColumn - 1);
return (deltaLineNumber + r.outputLineIndex);
}
}
function createSplitLine(linePositionMapperFactory: ILineMapperFactory, text: string, tabSize: number, wrappingColumn: number, columnsForFullWidthChar: number, wrappingIndent: WrappingIndent, isVisible: boolean): ISplitLine {
let positionMapper = linePositionMapperFactory.createLineMapping(text, tabSize, wrappingColumn, columnsForFullWidthChar, wrappingIndent);
if (positionMapper === null) {
// No mapping needed
if (isVisible) {
return VisibleIdentitySplitLine.INSTANCE;
}
return InvisibleIdentitySplitLine.INSTANCE;
} else {
return new SplitLine(positionMapper, isVisible);
}
}
export class IdentityCoordinatesConverter implements ICoordinatesConverter {
private readonly _lines: IdentityLinesCollection;
constructor(lines: IdentityLinesCollection) {
this._lines = lines;
}
private _validPosition(pos: Position): Position {
return this._lines.model.validatePosition(pos);
}
private _validRange(range: Range): Range {
return this._lines.model.validateRange(range);
}
// View -> Model conversion and related methods
public convertViewPositionToModelPosition(viewPosition: Position): Position {
return this._validPosition(viewPosition);
}
public convertViewRangeToModelRange(viewRange: Range): Range {
return this._validRange(viewRange);
}
public validateViewPosition(_viewPosition: Position, expectedModelPosition: Position): Position {
return this._validPosition(expectedModelPosition);
}
public validateViewRange(_viewRange: Range, expectedModelRange: Range): Range {
return this._validRange(expectedModelRange);
}
// Model -> View conversion and related methods
public convertModelPositionToViewPosition(modelPosition: Position): Position {
return this._validPosition(modelPosition);
}
public convertModelRangeToViewRange(modelRange: Range): Range {
return this._validRange(modelRange);
}
public modelPositionIsVisible(modelPosition: Position): boolean {
const lineCount = this._lines.model.getLineCount();
if (modelPosition.lineNumber < 1 || modelPosition.lineNumber > lineCount) {
// invalid arguments
return false;
}
return true;
}
}
export class IdentityLinesCollection implements IViewModelLinesCollection {
public readonly model: ITextModel;
constructor(model: ITextModel) {
this.model = model;
}
public dispose(): void {
}
public createCoordinatesConverter(): ICoordinatesConverter {
return new IdentityCoordinatesConverter(this);
}
public getHiddenAreas(): Range[] {
return [];
}
public setHiddenAreas(_ranges: Range[]): boolean {
return false;
}
public setTabSize(_newTabSize: number): boolean {
return false;
}
public setWrappingSettings(_wrappingIndent: WrappingIndent, _wrappingColumn: number, _columnsForFullWidthChar: number): boolean {
return false;
}
public onModelFlushed(): void {
}
public onModelLinesDeleted(_versionId: number, fromLineNumber: number, toLineNumber: number): viewEvents.ViewLinesDeletedEvent | null {
return new viewEvents.ViewLinesDeletedEvent(fromLineNumber, toLineNumber);
}
public onModelLinesInserted(_versionId: number, fromLineNumber: number, toLineNumber: number, _text: string[]): viewEvents.ViewLinesInsertedEvent | null {
return new viewEvents.ViewLinesInsertedEvent(fromLineNumber, toLineNumber);
}
public onModelLineChanged(_versionId: number, lineNumber: number, _newText: string): [boolean, viewEvents.ViewLinesChangedEvent | null, viewEvents.ViewLinesInsertedEvent | null, viewEvents.ViewLinesDeletedEvent | null] {
return [false, new viewEvents.ViewLinesChangedEvent(lineNumber, lineNumber), null, null];
}
public acceptVersionId(_versionId: number): void {
}
public getViewLineCount(): number {
return this.model.getLineCount();
}
public warmUpLookupCache(_viewStartLineNumber: number, _viewEndLineNumber: number): void {
}
public getActiveIndentGuide(viewLineNumber: number, _minLineNumber: number, _maxLineNumber: number): IActiveIndentGuideInfo {
return {
startLineNumber: viewLineNumber,
endLineNumber: viewLineNumber,
indent: 0
};
}
public getViewLinesIndentGuides(viewStartLineNumber: number, viewEndLineNumber: number): number[] {
const viewLineCount = viewEndLineNumber - viewStartLineNumber + 1;
let result = new Array<number>(viewLineCount);
for (let i = 0; i < viewLineCount; i++) {
result[i] = 0;
}
return result;
}
public getViewLineContent(viewLineNumber: number): string {
return this.model.getLineContent(viewLineNumber);
}
public getViewLineLength(viewLineNumber: number): number {
return this.model.getLineLength(viewLineNumber);
}
public getViewLineMinColumn(viewLineNumber: number): number {
return this.model.getLineMinColumn(viewLineNumber);
}
public getViewLineMaxColumn(viewLineNumber: number): number {
return this.model.getLineMaxColumn(viewLineNumber);
}
public getViewLineData(viewLineNumber: number): ViewLineData {
let lineTokens = this.model.getLineTokens(viewLineNumber);
let lineContent = lineTokens.getLineContent();
return new ViewLineData(
lineContent,
false,
1,
lineContent.length + 1,
lineTokens.inflate()
);
}
public getViewLinesData(viewStartLineNumber: number, viewEndLineNumber: number, needed: boolean[]): (ViewLineData | null)[] {
const lineCount = this.model.getLineCount();
viewStartLineNumber = Math.min(Math.max(1, viewStartLineNumber), lineCount);
viewEndLineNumber = Math.min(Math.max(1, viewEndLineNumber), lineCount);
let result: (ViewLineData | null)[] = [];
for (let lineNumber = viewStartLineNumber; lineNumber <= viewEndLineNumber; lineNumber++) {
let idx = lineNumber - viewStartLineNumber;
if (!needed[idx]) {
result[idx] = null;
}
result[idx] = this.getViewLineData(lineNumber);
}
return result;
}
public getAllOverviewRulerDecorations(ownerId: number, filterOutValidation: boolean, theme: ITheme): IOverviewRulerDecorations {
const decorations = this.model.getOverviewRulerDecorations(ownerId, filterOutValidation);
const result = new OverviewRulerDecorations();
for (let i = 0, len = decorations.length; i < len; i++) {
const decoration = decorations[i];
const opts = <ModelDecorationOverviewRulerOptions>decoration.options.overviewRuler;
const lane = opts ? opts.position : 0;
if (lane === 0) {
continue;
}
const color = opts.getColor(theme);
const viewStartLineNumber = decoration.range.startLineNumber;
const viewEndLineNumber = decoration.range.endLineNumber;
result.accept(color, viewStartLineNumber, viewEndLineNumber, lane);
}
return result.result;
}
public getDecorationsInRange(range: Range, ownerId: number, filterOutValidation: boolean): IModelDecoration[] {
return this.model.getDecorationsInRange(range, ownerId, filterOutValidation);
}
}
class OverviewRulerDecorations {
readonly result: IOverviewRulerDecorations = Object.create(null);
constructor() {
}
public accept(color: string, startLineNumber: number, endLineNumber: number, lane: number): void {
let prev = this.result[color];
if (prev) {
const prevLane = prev[prev.length - 3];
const prevEndLineNumber = prev[prev.length - 1];
if (prevLane === lane && prevEndLineNumber + 1 >= startLineNumber) {
// merge into prev
if (endLineNumber > prevEndLineNumber) {
prev[prev.length - 1] = endLineNumber;
}
return;
}
// push
prev.push(lane, startLineNumber, endLineNumber);
} else {
this.result[color] = [lane, startLineNumber, endLineNumber];
}
}
}