在这个函数的第一部分中，您设置了创建报告需要的对象，比如画布的宽度和高度以及填充变量。

In the first section of this function, you set up objects needed to create the report, like the width and height of the canvas, as well as padding variables.

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检测这部分的宽度和高度。

Check the width and height indications.

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任何一个小部件都有位置、宽度和高度。

A widget of either kind has a position, a width, and a height.

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