Symbol Window

The Symbol Window is available when working with FPGA databases, and displays the current symbol form. You can open or close this window at any time from View > Windows > Symbol, or by clicking the icon on the View Toolbar.

In addition to displaying generated symbols, the Symbol Window can be used to draw and edit symbols, as described in “Building a New Symbol”.

Use the scrollbars on the right and bottom of the window to navigate around the window.

Figure 3-3. Symbol Window

You can zoom-in on the Symbol Window. To zoom-in on the Symbol Window, use the controls on the main toolbar, or right-click in the Symbol Window and use the zoom controls.

Table 3-3. Symbol Window Zoom Controls

	Zoom In Increases zoom by 50% 3-button mouse: Click the middle mouse button.
	Zoom Out Decreases zoom by 50% 3-button mouse: Press SHIFT and click the middle mouse button.
	Zoom to Fit Shows the symbol in its entirety
	Zoom to Selection Fills the window with the selected symbol elements. 3-button mouse: To zoom to an area, hold down SHIFT, and drag in the symbol window with the middle mouse button or the right mouse button. If you move to the right, zoom in will be performed. If you move to the left, zoom out will be performed. Press Esc, or drag into the cancel box in the upper-left corner of the dragging rectangle to cancel the zoom.
	Previous Zoom Restores the zoom to the state of the previous zoom operation.
	Next Zoom Cancels the Previous Zoom operation.

Table 3-4 describes the Select, Zoom, and Pan modes within the Symbol Window.

Table 3-4. Symbol Window Modes

Select Mode

Allows you to select ports and graphical elements in the Symbol Window. For details, see the section “Editing Symbol Elements”.

Zoom Mode

When enabled, zooming in is performed by a single mouse-click. Zooming out is performed by SHIFT+click. To zoom in on a particular area, click and drag a rectangle around it. Upon releasing the mouse button, the selected area fills the entire Symbol Window.

Pan Mode

The Pan Mode allows you to easily scroll in the Symbol Window. This option is also called a Hand Tool. The mouse cursor in Pan Mode has the hand shape. Clicking and dragging in Pan Mode moves the entire Symbol Window and its contents.