ASP.NET Web PDF Document Viewer/Editor Control Library

On the Color drop-down menu, click More Colors, select dark gray, and then click OK. Make sure that the Transparency bar slider is set to 0%, and then click Close. Click the rst Key Point slide, and then hold down Ctrl and click to select the second and third Key Point slides. Now right-click one of the slides, click Format Background on the shortcut menu, and in the Format Background dialog box, click Fill and then select Solid Fill. On the Color drop-down menu, click More Colors, select medium gray, and then click OK. Make sure that the Transparency bar slider is set to 0%, and then click Close. Next click the rst Explanation slide, and then hold down Ctrl and select the rest of the Explanation slides. Now right-click one of the slides, click Format Background on the shortcut menu, and in the Format Background dialog box, on the Fill tab, select Solid Fill. On the Color drop-down menu, click More Colors, select light gray, and then click OK. Make sure that the Transparency bar slider is set to 0%, and then click Close.

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Time.now creates an instance of class Time that s set to the current time. However, because you re trying to print it to the screen, it s converted into the preceding string.

You can manipulate time objects by adding and subtracting numbers of seconds to them. For example:

In the first example you print the current time, and then the current time minus 10 seconds, and then the current time with 86,400 seconds (exactly one day) added on. Because times are so easy to manipulate, some developers extend the Fixnum class with some helper methods to make manipulating dates easier:

Do nothing to the Act I and Detail slides. Be sure to change only the background colors for now and otherwise leave the slides blank except for the headlines. If you were to include logos, other slide backgrounds, and other graphics on your storyboard at this point, they would constrain your design decisions and interfere with the way you will use backgrounds in this chapter to purposefully cue the working memory of your audience.

class Fixnum def seconds self end def minutes self * 60 end def hours self * 60 * 60 end def days self * 60 * 60 * 24 end end puts puts puts puts Time.now Time.now + 10.minutes Time.now + 16.hours Time.now - 7.days

Note that the range specified by the start and stop values (second and third parameter) includes the first index but not the second. This is common practice in Python. In Appendix B: rfind, index, rindex, count, startswith, endswith.

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The BBP Storyboard Formatter on the companion CD includes built-in layouts that you apply to your Key Point, Explanation, and Detail slides. These were built using the custom layouts feature in PowerPoint 2007, which is described in more detail in 8 you ll be able to modify the current custom layouts at that point, or add new ones and apply them to your slides. The Key Point and Explanation slides also have background styles applied to them as part of the Storyboard Formatter custom theme that is included with the storyboard formatter. Learn more about modifying and creating themes manually by referring to a PowerPoint 2007 book that covers the topic in more detail.

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A very important string method, join is the inverse of split, and is used to join the elements of a sequence: >>> seq = [1, 2, 3, 4, 5] >>> sep = '+' >>> sep.join(seq) # Trying to join a list of numbers Traceback (most recent call last): File "<stdin>", line 1, in TypeError: sequence item 0: expected string, int found >>> seq = ['1', '2', '3', '4', '5'] >>> sep.join(seq) # Joining a list of strings '1+2+3+4+5' >>> dirs = '', 'usr', 'bin', 'env' >>> '/'.join(dirs) '/usr/bin/env' >>> print 'C:' + '\\'.join(dirs) C:\usr\bin\env

Don t worry if this code seems confusing and unfamiliar, as we ll be covering this type of technique more in the following chapters. Do note, however, the style used in the final puts statements. It s easy to manipulate dates with these helpers! The Time class also allows you to create Time objects based on arbitrary dates:

Time.local(year, month, day, hour, min, sec, msec)