In this recipe, we will cover three of the standard canvas items: rectangles, ovals, and arcs. All of them are displayed within a bounding box, so the use of only two points is necessary to set their position: the upper-left corner of the box and the lower-right corner.
Adding shapes to the canvas
Getting ready
The following application allows users to freely draw some items on the canvas by selecting its type with three buttons—each one to select the corresponding shape.
Item's positions are determined by clicking first on the canvas to set the upper-left corner of the box the item will be contained in, and then clicking to set the lower-left corner of this box and draw the item with some predefined options:
