164     let startY = this.points!.startY!;
167     let depth = Math.ceil((endY - startY) / 16);
177         (startY < textEndY && endY >= textEndY) ||
178         (startY > textFirstRowY && startY < textEndY) ||
202   forwardSelected(startX: number, startY: number, endX: number, endY: number): void {
204     let depth = Math.ceil((endY - startY) / 16);
210       this.shellCanvasCtx!.fillRect(startX, startY, endX - startX, endY - startY);
212       startPointY = startY;
220 …       this.shellCanvasCtx!.fillRect(startX, startY, this.shellCanvas!.width - startX, index * 16);
222           startPointY = startY;
227             startY + (index - 1) * 16,
229             endY - (startY + (index - 1) * 16)
237             startY + (index - 1) * 16,
244     this.points = { startX: startPointX, startY: startPointY, endX: endPointX, endY: endPointY };
266   reverseSelected(startX: number, startY: number, endX: number, endY: number): void {
268     let depth = Math.ceil((startY - endY) / 16);
274       this.shellCanvasCtx!.fillRect(endX, endY, startX - endX, startY - endY);
278       endPointY = startY;
284 …this.shellCanvasCtx!.fillRect(SpWebHdcShell.LEFT_OFFSET, startY - 16, startX - SpWebHdcShell.LEFT_…
286           endPointY = startY;
289 …this.shellCanvasCtx!.fillRect(endX, endY, this.shellCanvas!.width - endX, startY - (index - 1) * 1…
293 …this.shellCanvasCtx!.fillRect(SpWebHdcShell.LEFT_OFFSET, startY - index * 16, this.shellCanvas!.wi…
298     this.points = { startX: startPointX, startY: startPointY, endX: endPointX, endY: endPointY };
583     let startY: number;  variable
593       startY = event.offsetY;
608       if (endY > startY) {
610         that.forwardSelected(startX, startY, endX, endY);
613         that.reverseSelected(startX, startY, endX, endY);
645   startY: number | undefined;  property in Point