Rulers in Java

Creator QR-Code in Java Rulers

Rulers, which appear along the top and left edges of the Document window, are great tools to assist you with the measurement and placement of objects in your document Rulers can display in pixels, inches, or centimeters You can move the ruler s X/Y coordinates, which represent the 0/0 measurement mark for the horizontal and vertical axes, to any location in the open Document window Modify the X/Y origin coordinates of the ruler by clicking and dragging the origin square at the top-left edge of the rulers, and then release the origin point anywhere on the visible Document window The X/Y coordinates jump to 0/0 at that position To reset the X/Y coordinates to the default location at the top-left edge of the Document window, choose View Rulers Reset Origin Toggle rulers on and off by choosing View Rulers Show

Use the grid to assist with laying out content in Design view Because the grid lines extend in regular intervals through the entire document, from left to right and from top to bottom, you can use them as guides for exact positioning of objects in your document, as shown in Figure 1-5 For best alignment, turn on the Snap to Grid option by choosing View Grid Snap to Grid Control the grid settings, such as grid coloring and spacing, with the Grid Settings dialog box by choosing View Grid Grid Settings Hide and show grids by choosing View Grid Show Grid

Figure 1-5: Use the ruler, guides, and grids in Design view to assist you with the placement of objects

Guides are horizontal and vertical guide lines that you can drag in the open Document window to assist you with the measurement and placement of objects For example, you may want to place the top-left edge of a layer at exactly 150 pixels in from the left edge of the Document window A guide placed at the 150-pixel mark with the Snap to Guide option enabled would allow you to snap the layer to the guide at that position Dreamweaver guides work like guides in Adobe Photoshop and Illustrator; they are visible onscreen in the work environment but aren t visible in print or on a Web page To create guides, first turn the rulers on (as described in the earlier section Rulers ) and then click and drag guides out from the top and left ruler bars When the guide is in the desired position, release the guide onto the document Lock or unlock guides as needed for easy repositioning or quick removal by dragging the guide back onto the ruler bar Choose View Guides Snap to Guides to have elements snap to guides when positioning objects, such as layers, inside the Document window Quickly hide and show guides by choosing View Guides Show Guides

Dreamweaver 8 has several new enhancements to the status bar (shown in Figure 1-6) The Tag selector is on the bottom-left edge of the Document window and allows for easy tag and tag content selection On the bottomright edge, the status bar shows the current size (in pixels) of the Document window, as well as a file size and estimated file opening time reflecting the file preferences for projected site visitors For example, an open document may display 760 x 420 and 27K/4 sec, meaning that the current page is optimized for a monitor with a resolution set to 800 x 600, 27K in size, and would take 4 seconds to load in a browser on a computer using a 56K modem

You can resize the Document window to a predetermined size to approximate the inside of a browser window for testing purposes On the Window Size drop-down list, select a window size or choose the Edit Sizes option to create and save custom size settings New to the status bar in Dreamweaver 8 are a few elements for Design view that Adobe Photoshop and Illustrator users will L-O-V-E (see Figure 1-6):