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Figure 13.4 shows documents that are opened using (from left to right) PageLayoutTwoColumnLeft, PageLayoutTwoColumnRight, and PageLayoutOneColumn. You can change the page layout by choosing View > Page Display. Note that features described in the PDF reference are often referred to by another name in end-user products. In Acrobat terminology, you have the choice of displaying Single Page, Single Page Continuous, Two-Up, and Two-Up Continuous. The version number is set to PDF 1.5 in listing 13.6, because that s when the values /TwoPageLeft and /TwoPageRight were introduced.

Even though most individual optimizations were small, cumulatively they were significant. To judge from the percentage improvements, no three or even four optimizations would have met my performance goal. But the final combination was effective. The moral of the story is that if you dig deep enough, you can make some surprising gains. The code tuning I did in this case is the most aggressive code tuning I ve ever done. At the same time, the final code is the most unreadable, unmaintainable code I ve ever written. The initial algorithm is complicated. The code resulting from the high-level language transformation was barely readable. The translation to assembler produced a single 500-line routine that I m afraid to look at. In general, this relationship between code tuning and code quality holds true. Here s a table that shows a history of the optimizations:

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1. Create a new file named presentation/smarty_plugins/modifier.prepare_link.php, and add the following code to it: < php // Plugin functions inside plugin files must be named: smarty_type_name function smarty_modifier_prepare_link($string, $link_type = 'http') {

Let s examine a scenario based on Figure 7-37 . Here you visually highlight cells that contain values within a certain range . Select the Home tab in the Ribbon, and click the Conditional Formatting button in the Styles group . In the list that opens, select Highlight Cells Rules, and then select the type of rule you want to use (in this case, Between) . Then proceed as shown in Figure 7-38: 1. You define the limits of the value range (BETWEEN and) in a small dialog box . 2. Select one of the predefined styles listed, or click the Custom Format entry in the dropdown list . 3. If you select Custom Format, the Format Cells dialog box opens, with the tabs Number, Font, Border, and Fill .

Fetch all needed data in the initial query by specifying exactly which associations will be accessed in the following unit of work. Navigate the object graph, which will consist entirely of objects that have already been fetched from the database.

Next, specify which privileges you want to share with these users. In the Woodgrove Bank example, Laura Owen can select the Read and Write privileges so that Gretchen and Heidi can edit this record. Note that the Delete and Assign privilege check boxes are unavailable because Laura doesn t have those privileges for this record, and therefore cannot share them with any other user. More Info Users can t share a privilege if they do not possess the privilege themselves. For

You could use either one of the preceding code lines in a program because they produce identical strings in the assembly s metadata . However, the @ symbol before the string on the second line tells the compiler that the string is a verbatim string . In effect, this tells the compiler to treat backslash characters as backslash characters instead of escape characters, making the path much more readable in your source code . Now that you ve seen how to construct a string, let s talk about some of the operations you can perform on String objects .

The client/server model Client/server is the architectural model of the World Wide Web, and the one with which you are probably most familiar. The client/server model is a distributed computing paradigm in which one process, often at the behest of an end user, makes a request of another process to perform some task. The process making the request is referred to as the client, and the process responding to the request is known as the server. The client sends a message to the server requesting some action. The server performs the requested action and returns a response message to the client, containing the processing results or providing the requested information. This is depicted in figure 1.2. This requestreply mechanism is a synchronous interaction model and is the basis of a family of higher-level interaction paradigms. For example, remote procedure calls

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