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<BR>

<UL>

<LI>System Browser

<BR>

<BR>

<LI>Class Hierarchy Browser

<BR>

<BR>

<LI>Implementors

<BR>

<BR>

<LI>Senders

<BR>

<BR>

<LI>Changes Browser

<BR>

<BR>

<LI>Directory Browser

<BR>

<BR>

</UL>

<P>Each of these sub-options will be discussed in detail in this section.

<BR>

<BR>

<A NAME="E69E401"></A>

<H4 ALIGN=CENTER>

<CENTER>

<FONT SIZE=4 COLOR="#FF0000"><B>The System Browser</B></FONT></CENTER></H4>

<BR>

<P>The standard System Browser contains five subviews:

<BR>

<UL>

<LI>Class category list

<BR>

<BR>

<LI>Class list

<BR>

<BR>

<LI>Method category list

<BR>

<BR>

<LI>Method list

<BR>

<BR>

<LI>Code view

<BR>

<BR>

</UL>

<P>The System Browser is shown in Figure 34.3.

<BR>

<P><B> <A HREF="34rhl03.gif" tppabs="http://202.113.16.101/%7eeb%7e/Red%20Hat%20Linux%20Unleashed/34rhl03.gif">Figure 34.3. The System Browser.</A></B>
<P>
Within the ST/X system, classes are assigned to a category. A category is simply an attribute used for grouping classes to make them easier to handle. To select a class category, 
click on the name of the category in the class category list. This is the leftmost section of the top half of the System Browser. This will display, in the class list subview, all classes belonging to that category. The class list 
subview is the second section from the far left of the system browser. You can also select one of two special categories: all *which selects all classes and lists them alphabetically; and *hierarchy, 
which lists all classes in a tree byinheritance.</B>

<BR>

<P>If you select a class in the class list, all method categories for that class will be displayed in the method category list, which is the second section from the right in the top half of the System Browser. Like class categories, method categories are 
simply for grouping methods according to their function. When you select a method category, all methods in that category are shown in the method list view in the far right section of the browser. The special * all * category will show all methods in 
alphabetical order. Selecting a method from the method list will show the corresponding method's source code in the code view which is the bottom half of the System Browser.

<BR>

<P>The browser enables you to change either a class or its metaclass. There are two toggle buttons, class and instance, in the same section of the browser as the class list view. Instance, which is the default, makes the changes affect the class. Selecting 
class makes the changes affect the metaclass.A pop-up menu is available in each view by pressing the middle or menu mouse button while the pointer is in that view. The pop-up menu available in the class category view is shown in Figure 34.4, and the 
purpose of each function is shown in Table 34.2.

<BR>

<P><B> <A HREF="34rhl04.gif" tppabs="http://202.113.16.101/%7eeb%7e/Red%20Hat%20Linux%20Unleashed/34rhl04.gif">Figure 34.4. The Class Category pop-up menu.</A></B>

<BR>

<BR>

<P ALIGN=CENTER>

<CENTER>

<FONT COLOR="#000080"><B>Table 34.2. Class Category pop-up menu functions.</B></FONT></CENTER>

<BR>



<TABLE  BORDERCOLOR=#000040 BORDER=1 CELLSPACING=2 WIDTH="100%" CELLPADDING=2 >

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

<I>Function</I>

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

<I>Description</I></FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

fileOut

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Saves all classes in the currently selected class category into one source file named classCategory.st</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

fileOut each

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Saves all classes but puts each class into a separate file called className.st</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

printOut

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Sends a printed representation of all classes selected to the printer including the method source code</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

printOut protocol

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Sends a protocol-only representation of all classes in the category to the printer without the method's source code</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

spawn

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Starts a class category browser without a class category list on the currently selected class category</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

spawn class

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Starts a full class browser which allows you to edit all code for the selected class in one view</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

update

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Re-scans all classes in the system and updates the lists shown</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

find class...

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Pops up a dialog box to enter the name of a class you wish to search for and have displayed</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

new class category...

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Displays a dialog for the creation of a new class category.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

rename...

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Renames a category and changes the category attribute of all classes in the currently selected class category</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

remove

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Removes all classes and subclasses in the current class category</FONT>

</TABLE><P>The class list pop-up menu appears when you press the menu mouse button with the pointer in the class list view. The functions available from this menu are shown in Figure 34.5 and are explained in Table 34.3.

<BR>

<P><B> <A HREF="34rhl05.gif" tppabs="http://202.113.16.101/%7eeb%7e/Red%20Hat%20Linux%20Unleashed/34rhl05.gif">Figure 34.5. The Class List pop-up menu.</A></B>

<BR>

<BR>

<P ALIGN=CENTER>

<CENTER>

<FONT COLOR="#000080"><B>Table 34.3. Class List pop-up menu functions.</B></FONT></CENTER>

<BR>



<TABLE  BORDERCOLOR=#000040 BORDER=1 CELLSPACING=2 WIDTH="100%" CELLPADDING=2 >

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

<I>Function</I>

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

<I>Description</I></FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

fileOut

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Saves the source code of the currently selected class in a file named className.st.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

printOut

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Sends the source code of the currently selected class to the printer.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

printOut protocol

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Sends a protocol description of the currently selected class to the printer. The output will contain the class description, class comment, and the classes protocol and method comments.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

spawn

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Starts a class browser on the currently selected class.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

spawn hierarchy

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Starts a browser on all subclasses of the currently selected class.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

hierarchy

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Shows the hierarchy of the currently selected class in the code view.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

definition

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Shows the class definition in the code view and allows you to change the class definition.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

comment

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Shows the class comment in the code view and allows you to edit it.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

class instvars

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Shows the class-instance-variables for the selected class and allows you to edit them.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

variable search

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Provides a search facility to find different variable references and all methods referencing the searched-for variable.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

new class

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Allows you to create a new class using as a template the currently selected class.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

new subclass

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Same as new class but it will create a subclass of the currently selected class.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

rename

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Changes the name of the currently selected class.</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

remove

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Removes the currently selected class and all of its subclasses.</FONT>

</TABLE><P>The method category pop-up menu appears when you press the menu mouse button while the pointer is in the method category view. The functions available from this menu are shown in Figure 34.6 and explained in Table 34.4.

<BR>

<P><B> <A HREF="34rhl06.gif" tppabs="http://202.113.16.101/%7eeb%7e/Red%20Hat%20Linux%20Unleashed/34rhl06.gif">Figure 34.6. The Method Category pop-up </B><B>menu.</A></B>

<BR>

<BR>

<P ALIGN=CENTER>

<CENTER>

<FONT COLOR="#000080"><B>Table 34.4. Method Category pop-up menu functions.</B></FONT></CENTER>

<BR>



<TABLE  BORDERCOLOR=#000040 BORDER=1 CELLSPACING=2 WIDTH="100%" CELLPADDING=2 >

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

<I>Function</I>

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

<I>Description</I></FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

fileOut

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Saves the source code of the currently selected method category in a file named className-category.st</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

printOut

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Sends the source code of the currently selected method category to the printer</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

spawn

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Starts a method category browser on the currently selected method category of the currently selected class</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

spawn category

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Starts a browser on all methods of the class which have the same category as the currently selected one</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

find method here...

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Searches for the method that implements a specified selector</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

find method...

</FONT>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

Searches in the class hierarchy for the first class implementing the selector you specify in the dialog box</FONT>

<TR>

<TD VALIGN=top  BGCOLOR=#80FFFF ><FONT COLOR=#000080>

new category...