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/*
This file is part of the Kate project within KDE.
SPDX-FileCopyrightText: 2009-2018 Dominik Haumann <dhaumann@kde.org>
SPDX-License-Identifier: MIT
*/
// required katepart js libraries
require ("cursor.js");
/**
* Prototype Range.
*/
function Range() {
if (arguments.length === 0) {
return new Range(0, 0, 0, 0);
}
if (arguments.length === 1 && typeof arguments[0] == "object") {
// assume: range = new Range(otherRange);
return arguments[0].clone();
}
if (arguments.length === 2 && typeof arguments[0] == "object"
&& typeof arguments[1] == "object") {
// assume: range = new Range(startCursor, endCursor);
this.start = arguments[0].clone();
this.end = arguments[1].clone();
} else if (arguments.length === 4 && typeof arguments[0] == "number"
&& typeof arguments[1] == "number"
&& typeof arguments[2] == "number"
&& typeof arguments[3] == "number") {
this.start = new Cursor(arguments[0], arguments[1]);
this.end = new Cursor(arguments[2], arguments[3]);
} else {
throw "Wrong usage of Range constructor";
}
}
Range.prototype.clone = function() {
return new Range(this.start, this.end);
}
Range.prototype.isValid = function() {
return this.start.isValid() && this.end.isValid();
}
Range.prototype.isEmpty = function() {
return this.start.equals(this.end);
}
Range.prototype.contains = function(cursorOrRange) {
if (cursorOrRange.start && cursorOrRange.end) {
// assume a range
return (cursorOrRange.start.compareTo(this.start) >= 0 &&
cursorOrRange.end.compareTo(this.end) <= 0);
}
// else: assume a cursor
return (cursorOrRange.compareTo(this.start) >= 0 &&
cursorOrRange.compareTo(this.end) < 0);
}
Range.prototype.containsColumn = function(column) {
return (column >= this.start.column) && (column < this.end.column);
}
Range.prototype.containsLine = function(line) {
return ((line > this.start.line) || ((line === this.start.line) && (this.start.column === 0))) && line < this.end.line;
}
Range.prototype.overlaps = function(range) {
if (range.start.compareTo(this.start) <= 0) {
return range.end.compareTo(this.start) > 0;
}
if (range.end.compareTo(this.end) >= 0) {
return range.start.compareTo(this.end) < 0;
}
return this.contains(range);
}
Range.prototype.overlapsLine = function(line) {
return (line >= this.start.line && line <= this.end.line);
}
Range.prototype.overlapsColumn = function(column) {
return column >= this.start.column && column <= this.end.column;
}
Range.prototype.onSingleLine = function() {
return (this.start.line == this.end.line);
}
Range.prototype.equals = function(other) {
return (this.start.equals(other.start) && this.end.equals(other.end));
}
Range.prototype.toString = function() {
return "Range(" + this.start + ", " + this.end + ")";
}
Range.invalid = function() {
return new Range(-1, -1, -1, -1);
}
// kate: indent-width 2; replace-tabs on;
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