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54 | <H2><A NAME="SECTION0018230000000000000000"> | |
55 | 16.2.3 Tix Commands</A> | |
56 | </H2> | |
57 | ||
58 | <P> | |
59 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
60 | <td><nobr><b><span class="typelabel">class</span> <tt id='l2h-4872' xml:id='l2h-4872' class="class">tixCommand</tt></b>(</nobr></td> | |
61 | <td><var></var>)</td></tr></table></dt> | |
62 | <dd> | |
63 | The <a class="ulink" href="http://tix.sourceforge.net/dist/current/man/html/TixCmd/tix.htm" | |
64 | >tix commands</a> | |
65 | provide access to miscellaneous elements of <tt class="module"><a href="module-Tix.html">Tix</a></tt>'s internal | |
66 | state and the <tt class="module"><a href="module-Tix.html">Tix</a></tt> application context. Most of the information | |
67 | manipulated by these methods pertains to the application as a whole, | |
68 | or to a screen or display, rather than to a particular window. | |
69 | ||
70 | <P> | |
71 | To view the current settings, the common usage is: | |
72 | <div class="verbatim"><pre> | |
73 | import Tix | |
74 | root = Tix.Tk() | |
75 | print root.tix_configure() | |
76 | </pre></div> | |
77 | </dl> | |
78 | ||
79 | <P> | |
80 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
81 | <td><nobr><b><tt id='l2h-4873' xml:id='l2h-4873' class="method">tix_configure</tt></b>(</nobr></td> | |
82 | <td><var></var><big>[</big><var>cnf,</var><big>]</big><var> **kw</var>)</td></tr></table></dt> | |
83 | <dd> | |
84 | Query or modify the configuration options of the Tix application | |
85 | context. If no option is specified, returns a dictionary all of the | |
86 | available options. If option is specified with no value, then the | |
87 | method returns a list describing the one named option (this list will | |
88 | be identical to the corresponding sublist of the value returned if no | |
89 | option is specified). If one or more option-value pairs are | |
90 | specified, then the method modifies the given option(s) to have the | |
91 | given value(s); in this case the method returns an empty string. | |
92 | Option may be any of the configuration options. | |
93 | </dl> | |
94 | ||
95 | <P> | |
96 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
97 | <td><nobr><b><tt id='l2h-4874' xml:id='l2h-4874' class="method">tix_cget</tt></b>(</nobr></td> | |
98 | <td><var>option</var>)</td></tr></table></dt> | |
99 | <dd> | |
100 | Returns the current value of the configuration option given by | |
101 | <var>option</var>. Option may be any of the configuration options. | |
102 | </dl> | |
103 | ||
104 | <P> | |
105 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
106 | <td><nobr><b><tt id='l2h-4875' xml:id='l2h-4875' class="method">tix_getbitmap</tt></b>(</nobr></td> | |
107 | <td><var>name</var>)</td></tr></table></dt> | |
108 | <dd> | |
109 | Locates a bitmap file of the name <code>name.xpm</code> or <code>name</code> in | |
110 | one of the bitmap directories (see the <tt class="method">tix_addbitmapdir()</tt> | |
111 | method). By using <tt class="method">tix_getbitmap()</tt>, you can avoid hard | |
112 | coding the pathnames of the bitmap files in your application. When | |
113 | successful, it returns the complete pathname of the bitmap file, | |
114 | prefixed with the character "<tt class="samp">@</tt>". The returned value can be used to | |
115 | configure the <code>bitmap</code> option of the Tk and Tix widgets. | |
116 | </dl> | |
117 | ||
118 | <P> | |
119 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
120 | <td><nobr><b><tt id='l2h-4876' xml:id='l2h-4876' class="method">tix_addbitmapdir</tt></b>(</nobr></td> | |
121 | <td><var>directory</var>)</td></tr></table></dt> | |
122 | <dd> | |
123 | Tix maintains a list of directories under which the | |
124 | <tt class="method">tix_getimage()</tt> and <tt class="method">tix_getbitmap()</tt> methods will | |
125 | search for image files. The standard bitmap directory is | |
126 | <span class="file">$TIX_LIBRARY/bitmaps</span>. The <tt class="method">tix_addbitmapdir()</tt> method | |
127 | adds <var>directory</var> into this list. By using this method, the image | |
128 | files of an applications can also be located using the | |
129 | <tt class="method">tix_getimage()</tt> or <tt class="method">tix_getbitmap()</tt> method. | |
130 | </dl> | |
131 | ||
132 | <P> | |
133 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
134 | <td><nobr><b><tt id='l2h-4877' xml:id='l2h-4877' class="method">tix_filedialog</tt></b>(</nobr></td> | |
135 | <td><var></var><big>[</big><var>dlgclass</var><big>]</big><var></var>)</td></tr></table></dt> | |
136 | <dd> | |
137 | Returns the file selection dialog that may be shared among different | |
138 | calls from this application. This method will create a file selection | |
139 | dialog widget when it is called the first time. This dialog will be | |
140 | returned by all subsequent calls to <tt class="method">tix_filedialog()</tt>. An | |
141 | optional dlgclass parameter can be passed as a string to specified | |
142 | what type of file selection dialog widget is desired. Possible | |
143 | options are <code>tix</code>, <code>FileSelectDialog</code> or | |
144 | <code>tixExFileSelectDialog</code>. | |
145 | </dl> | |
146 | ||
147 | <P> | |
148 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
149 | <td><nobr><b><tt id='l2h-4878' xml:id='l2h-4878' class="method">tix_getimage</tt></b>(</nobr></td> | |
150 | <td><var>self, name</var>)</td></tr></table></dt> | |
151 | <dd> | |
152 | Locates an image file of the name <span class="file">name.xpm</span>, <span class="file">name.xbm</span> or | |
153 | <span class="file">name.ppm</span> in one of the bitmap directories (see the | |
154 | <tt class="method">tix_addbitmapdir()</tt> method above). If more than one file with | |
155 | the same name (but different extensions) exist, then the image type is | |
156 | chosen according to the depth of the X display: xbm images are chosen | |
157 | on monochrome displays and color images are chosen on color | |
158 | displays. By using <tt class="method">tix_getimage()</tt>, you can avoid hard coding | |
159 | the pathnames of the image files in your application. When successful, | |
160 | this method returns the name of the newly created image, which can be | |
161 | used to configure the <code>image</code> option of the Tk and Tix widgets. | |
162 | </dl> | |
163 | ||
164 | <P> | |
165 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
166 | <td><nobr><b><tt id='l2h-4879' xml:id='l2h-4879' class="method">tix_option_get</tt></b>(</nobr></td> | |
167 | <td><var>name</var>)</td></tr></table></dt> | |
168 | <dd> | |
169 | Gets the options maintained by the Tix scheme mechanism. | |
170 | </dl> | |
171 | ||
172 | <P> | |
173 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
174 | <td><nobr><b><tt id='l2h-4880' xml:id='l2h-4880' class="method">tix_resetoptions</tt></b>(</nobr></td> | |
175 | <td><var>newScheme, newFontSet</var><big>[</big><var>, | |
176 | newScmPrio</var><big>]</big><var></var>)</td></tr></table></dt> | |
177 | <dd> | |
178 | Resets the scheme and fontset of the Tix application to | |
179 | <var>newScheme</var> and <var>newFontSet</var>, respectively. This affects only | |
180 | those widgets created after this call. Therefore, it is best to call | |
181 | the resetoptions method before the creation of any widgets in a Tix | |
182 | application. | |
183 | ||
184 | <P> | |
185 | The optional parameter <var>newScmPrio</var> can be given to reset the | |
186 | priority level of the Tk options set by the Tix schemes. | |
187 | ||
188 | <P> | |
189 | Because of the way Tk handles the X option database, after Tix has | |
190 | been has imported and inited, it is not possible to reset the color | |
191 | schemes and font sets using the <tt class="method">tix_config()</tt> method. | |
192 | Instead, the <tt class="method">tix_resetoptions()</tt> method must be used. | |
193 | </dl> | |
194 | ||
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