Edit C:\galaxie\Back\galaxie\js\timeline\api\scripts\ethers.js

/*==================================================
 *  An "ether" is a object that maps date/time to pixel coordinates.
 *==================================================
 */

/*==================================================
 *  Linear Ether
 *==================================================
 */
 
Timeline.LinearEther = function(params) {
    this._params = params;
    this._interval = params.interval;
    this._pixelsPerInterval = params.pixelsPerInterval;
};

Timeline.LinearEther.prototype.initialize = function(band, timeline) {
    this._band = band;
    this._timeline = timeline;
    this._unit = timeline.getUnit();
    
    if ("startsOn" in this._params) {
        this._start = this._unit.parseFromObject(this._params.startsOn);
    } else if ("endsOn" in this._params) {
        this._start = this._unit.parseFromObject(this._params.endsOn);
        this.shiftPixels(-this._timeline.getPixelLength());
    } else if ("centersOn" in this._params) {
        this._start = this._unit.parseFromObject(this._params.centersOn);
        this.shiftPixels(-this._timeline.getPixelLength() / 2);
    } else {
        this._start = this._unit.makeDefaultValue();
        this.shiftPixels(-this._timeline.getPixelLength() / 2);
    }
};

Timeline.LinearEther.prototype.setDate = function(date) {
    this._start = this._unit.cloneValue(date);
};

Timeline.LinearEther.prototype.shiftPixels = function(pixels) {
    var numeric = this._interval * pixels / this._pixelsPerInterval;
    this._start = this._unit.change(this._start, numeric);
};

Timeline.LinearEther.prototype.dateToPixelOffset = function(date) {
    var numeric = this._unit.compare(date, this._start);
    return this._pixelsPerInterval * numeric / this._interval;
};

Timeline.LinearEther.prototype.pixelOffsetToDate = function(pixels) {
    var numeric = pixels * this._interval / this._pixelsPerInterval;
    return this._unit.change(this._start, numeric);
};

Timeline.LinearEther.prototype.zoom = function(zoomIn) {
  var netIntervalChange = 0;
  var currentZoomIndex = this._band._zoomIndex;
  var newZoomIndex = currentZoomIndex;

if (zoomIn && (currentZoomIndex > 0)) {
    newZoomIndex = currentZoomIndex - 1;
  }
  
  if (!zoomIn && (currentZoomIndex < (this._band._zoomSteps.length - 1))) {
    newZoomIndex = currentZoomIndex + 1;
  }

this._band._zoomIndex = newZoomIndex;  
  this._interval = 
    SimileAjax.DateTime.gregorianUnitLengths[this._band._zoomSteps[newZoomIndex].unit];
  this._pixelsPerInterval = this._band._zoomSteps[newZoomIndex].pixelsPerInterval;
  netIntervalChange = this._band._zoomSteps[newZoomIndex].unit - 
    this._band._zoomSteps[currentZoomIndex].unit;

return netIntervalChange;
};

/*==================================================
 *  Hot Zone Ether
 *==================================================
 */
 
Timeline.HotZoneEther = function(params) {
    this._params = params;
    this._interval = params.interval;
    this._pixelsPerInterval = params.pixelsPerInterval;
    this._theme = params.theme;
};

Timeline.HotZoneEther.prototype.initialize = function(band, timeline) {
    this._band = band;
    this._timeline = timeline;
    this._unit = timeline.getUnit();
    
    this._zones = [{
        startTime:  Number.NEGATIVE_INFINITY,
        endTime:    Number.POSITIVE_INFINITY,
        magnify:    1
    }];
    var params = this._params;
    for (var i = 0; i < params.zones.length; i++) {
        var zone = params.zones[i];
        var zoneStart = this._unit.parseFromObject(zone.start);
        var zoneEnd =   this._unit.parseFromObject(zone.end);
        
        for (var j = 0; j < this._zones.length && this._unit.compare(zoneEnd, zoneStart) > 0; j++) {
            var zone2 = this._zones[j];
            
            if (this._unit.compare(zoneStart, zone2.endTime) < 0) {
                if (this._unit.compare(zoneStart, zone2.startTime) > 0) {
                    this._zones.splice(j, 0, {
                        startTime:   zone2.startTime,
                        endTime:     zoneStart,
                        magnify:     zone2.magnify
                    });
                    j++;
                    
                    zone2.startTime = zoneStart;
                }
                
                if (this._unit.compare(zoneEnd, zone2.endTime) < 0) {
                    this._zones.splice(j, 0, {
                        startTime:  zoneStart,
                        endTime:    zoneEnd,
                        magnify:    zone.magnify * zone2.magnify
                    });
                    j++;
                    
                    zone2.startTime = zoneEnd;
                    zoneStart = zoneEnd;
                } else {
                    zone2.magnify *= zone.magnify;
                    zoneStart = zone2.endTime;
                }
            } // else, try the next existing zone
        }
    }

if ("startsOn" in this._params) {
        this._start = this._unit.parseFromObject(this._params.startsOn);
    } else if ("endsOn" in this._params) {
        this._start = this._unit.parseFromObject(this._params.endsOn);
        this.shiftPixels(-this._timeline.getPixelLength());
    } else if ("centersOn" in this._params) {
        this._start = this._unit.parseFromObject(this._params.centersOn);
        this.shiftPixels(-this._timeline.getPixelLength() / 2);
    } else {
        this._start = this._unit.makeDefaultValue();
        this.shiftPixels(-this._timeline.getPixelLength() / 2);
    }
};

Timeline.HotZoneEther.prototype.setDate = function(date) {
    this._start = this._unit.cloneValue(date);
};

Timeline.HotZoneEther.prototype.shiftPixels = function(pixels) {
    this._start = this.pixelOffsetToDate(pixels);
};

Timeline.HotZoneEther.prototype.dateToPixelOffset = function(date) {
    return this._dateDiffToPixelOffset(this._start, date);
};

Timeline.HotZoneEther.prototype.pixelOffsetToDate = function(pixels) {
    return this._pixelOffsetToDate(pixels, this._start);
};

Timeline.HotZoneEther.prototype.zoom = function(zoomIn) {
  var netIntervalChange = 0;
  var currentZoomIndex = this._band._zoomIndex;
  var newZoomIndex = currentZoomIndex;

return netIntervalChange;
};

Timeline.HotZoneEther.prototype._dateDiffToPixelOffset = function(fromDate, toDate) {
    var scale = this._getScale();
    var fromTime = fromDate;
    var toTime = toDate;
    
    var pixels = 0;
    if (this._unit.compare(fromTime, toTime) < 0) {
        var z = 0;
        while (z < this._zones.length) {
            if (this._unit.compare(fromTime, this._zones[z].endTime) < 0) {
                break;
            }
            z++;
        }
        
        while (this._unit.compare(fromTime, toTime) < 0) {
            var zone = this._zones[z];
            var toTime2 = this._unit.earlier(toTime, zone.endTime);
            
            pixels += (this._unit.compare(toTime2, fromTime) / (scale / zone.magnify));
            
            fromTime = toTime2;
            z++;
        }
    } else {
        var z = this._zones.length - 1;
        while (z >= 0) {
            if (this._unit.compare(fromTime, this._zones[z].startTime) > 0) {
                break;
            }
            z--;
        }
        
        while (this._unit.compare(fromTime, toTime) > 0) {
            var zone = this._zones[z];
            var toTime2 = this._unit.later(toTime, zone.startTime);
            
            pixels += (this._unit.compare(toTime2, fromTime) / (scale / zone.magnify));
            
            fromTime = toTime2;
            z--;
        }
    }
    return pixels;
};

Timeline.HotZoneEther.prototype._pixelOffsetToDate = function(pixels, fromDate) {
    var scale = this._getScale();
    var time = fromDate;
    if (pixels > 0) {
        var z = 0;
        while (z < this._zones.length) {
            if (this._unit.compare(time, this._zones[z].endTime) < 0) {
                break;
            }
            z++;
        }
        
        while (pixels > 0) {
            var zone = this._zones[z];
            var scale2 = scale / zone.magnify;
            
            if (zone.endTime == Number.POSITIVE_INFINITY) {
                time = this._unit.change(time, pixels * scale2);
                pixels = 0;
            } else {
                var pixels2 = this._unit.compare(zone.endTime, time) / scale2;
                if (pixels2 > pixels) {
                    time = this._unit.change(time, pixels * scale2);
                    pixels = 0;
                } else {
                    time = zone.endTime;
                    pixels -= pixels2;
                }
            }
            z++;
        }
    } else {
        var z = this._zones.length - 1;
        while (z >= 0) {
            if (this._unit.compare(time, this._zones[z].startTime) > 0) {
                break;
            }
            z--;
        }
        
        pixels = -pixels;
        while (pixels > 0) {
            var zone = this._zones[z];
            var scale2 = scale / zone.magnify;
            
            if (zone.startTime == Number.NEGATIVE_INFINITY) {
                time = this._unit.change(time, -pixels * scale2);
                pixels = 0;
            } else {
                var pixels2 = this._unit.compare(time, zone.startTime) / scale2;
                if (pixels2 > pixels) {
                    time = this._unit.change(time, -pixels * scale2);
                    pixels = 0;
                } else {
                    time = zone.startTime;
                    pixels -= pixels2;
                }
            }
            z--;
        }
    }
    return time;
};

Timeline.HotZoneEther.prototype._getScale = function() {
    return this._interval / this._pixelsPerInterval;
};

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