projects / OpenSPARC-T2-DV / blame
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| 17 | <title>2.8.4 ScrolledWindow Object </title> | |
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| 50 | </div> | |
| 51 | <hr /></div> | |
| 52 | </DIV> | |
| 53 | <!--End of Navigation Panel--> | |
| 54 | ||
| 55 | <H2><A NAME="SECTION004840000000000000000"></A><A NAME="scrolledwindow-object"></A> | |
| 56 | <BR> | |
| 57 | 2.8.4 ScrolledWindow Object | |
| 58 | </H2> | |
| 59 | ||
| 60 | <P> | |
| 61 | ScrolledWindow objects are ControlsWindow objects with the following | |
| 62 | extra methods: | |
| 63 | ||
| 64 | <P> | |
| 65 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 66 | <td><nobr><b><tt id='l2h-124' xml:id='l2h-124' class="method">scrollbars</tt></b>(</nobr></td> | |
| 67 | <td><var></var><big>[</big><var>wantx</var><big>[</big><var>, | |
| 68 | wanty</var><big>]</big><var></var><big>]</big><var></var>)</td></tr></table></dt> | |
| 69 | <dd> | |
| 70 | Create (or destroy) horizontal and vertical scrollbars. The arguments | |
| 71 | specify which you want (default: both). The scrollbars always have | |
| 72 | minimum <code>0</code> and maximum <code>32767</code>. | |
| 73 | </dl> | |
| 74 | ||
| 75 | <P> | |
| 76 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 77 | <td><nobr><b><tt id='l2h-125' xml:id='l2h-125' class="method">getscrollbarvalues</tt></b>(</nobr></td> | |
| 78 | <td><var></var>)</td></tr></table></dt> | |
| 79 | <dd> | |
| 80 | You must supply this method. It should return a tuple <code>(<var>x</var>, | |
| 81 | <var>y</var>)</code> giving the current position of the scrollbars (between | |
| 82 | <code>0</code> and <code>32767</code>). You can return <code>None</code> for either to | |
| 83 | indicate the whole document is visible in that direction. | |
| 84 | </dl> | |
| 85 | ||
| 86 | <P> | |
| 87 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 88 | <td><nobr><b><tt id='l2h-126' xml:id='l2h-126' class="method">updatescrollbars</tt></b>(</nobr></td> | |
| 89 | <td><var></var>)</td></tr></table></dt> | |
| 90 | <dd> | |
| 91 | Call this method when the document has changed. It will call | |
| 92 | <tt class="method">getscrollbarvalues()</tt> and update the scrollbars. | |
| 93 | </dl> | |
| 94 | ||
| 95 | <P> | |
| 96 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 97 | <td><nobr><b><tt id='l2h-127' xml:id='l2h-127' class="method">scrollbar_callback</tt></b>(</nobr></td> | |
| 98 | <td><var>which, what, value</var>)</td></tr></table></dt> | |
| 99 | <dd> | |
| 100 | Supplied by you and called after user interaction. <var>which</var> will | |
| 101 | be <code>'x'</code> or <code>'y'</code>, <var>what</var> will be <code>'-'</code>, | |
| 102 | <code>'--'</code>, <code>'set'</code>, <code>'++'</code> or <code>'+'</code>. For | |
| 103 | <code>'set'</code>, <var>value</var> will contain the new scrollbar position. | |
| 104 | </dl> | |
| 105 | ||
| 106 | <P> | |
| 107 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 108 | <td><nobr><b><tt id='l2h-128' xml:id='l2h-128' class="method">scalebarvalues</tt></b>(</nobr></td> | |
| 109 | <td><var>absmin, absmax, | |
| 110 | curmin, curmax</var>)</td></tr></table></dt> | |
| 111 | <dd> | |
| 112 | Auxiliary method to help you calculate values to return from | |
| 113 | <tt class="method">getscrollbarvalues()</tt>. You pass document minimum and maximum value | |
| 114 | and topmost (leftmost) and bottommost (rightmost) visible values and | |
| 115 | it returns the correct number or <code>None</code>. | |
| 116 | </dl> | |
| 117 | ||
| 118 | <P> | |
| 119 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 120 | <td><nobr><b><tt id='l2h-129' xml:id='l2h-129' class="method">do_activate</tt></b>(</nobr></td> | |
| 121 | <td><var>onoff, event</var>)</td></tr></table></dt> | |
| 122 | <dd> | |
| 123 | Takes care of dimming/highlighting scrollbars when a window becomes | |
| 124 | frontmost. If you override this method, call this one at the end of | |
| 125 | your method. | |
| 126 | </dl> | |
| 127 | ||
| 128 | <P> | |
| 129 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 130 | <td><nobr><b><tt id='l2h-130' xml:id='l2h-130' class="method">do_postresize</tt></b>(</nobr></td> | |
| 131 | <td><var>width, height, window</var>)</td></tr></table></dt> | |
| 132 | <dd> | |
| 133 | Moves scrollbars to the correct position. Call this method initially | |
| 134 | if you override it. | |
| 135 | </dl> | |
| 136 | ||
| 137 | <P> | |
| 138 | <dl><dt><table cellpadding="0" cellspacing="0"><tr valign="baseline"> | |
| 139 | <td><nobr><b><tt id='l2h-131' xml:id='l2h-131' class="method">do_controlhit</tt></b>(</nobr></td> | |
| 140 | <td><var>window, control, | |
| 141 | pcode, event</var>)</td></tr></table></dt> | |
| 142 | <dd> | |
| 143 | Handles scrollbar interaction. If you override it call this method | |
| 144 | first, a nonzero return value indicates the hit was in the scrollbars | |
| 145 | and has been handled. | |
| 146 | </dl> | |
| 147 | ||
| 148 | <P> | |
| 149 | ||
| 150 | <DIV CLASS="navigation"> | |
| 151 | <div class='online-navigation'> | |
| 152 | <p></p><hr /> | |
| 153 | <table align="center" width="100%" cellpadding="0" cellspacing="2"> | |
| 154 | <tr> | |
| 155 | <td class='online-navigation'><a rel="prev" title="2.8.3 ControlsWindow Object" | |
| 156 | href="controlswindow-object.html"><img src='../icons/previous.png' | |
| 157 | border='0' height='32' alt='Previous Page' width='32' /></A></td> | |
| 158 | <td class='online-navigation'><a rel="parent" title="2.8 FrameWork " | |
| 159 | href="module-FrameWork.html"><img src='../icons/up.png' | |
| 160 | border='0' height='32' alt='Up One Level' width='32' /></A></td> | |
| 161 | <td class='online-navigation'><a rel="next" title="2.8.5 DialogWindow Objects" | |
| 162 | href="dialogwindow-objects.html"><img src='../icons/next.png' | |
| 163 | border='0' height='32' alt='Next Page' width='32' /></A></td> | |
| 164 | <td align="center" width="100%">Macintosh Library Modules</td> | |
| 165 | <td class='online-navigation'><a rel="contents" title="Table of Contents" | |
| 166 | href="contents.html"><img src='../icons/contents.png' | |
| 167 | border='0' height='32' alt='Contents' width='32' /></A></td> | |
| 168 | <td class='online-navigation'><a href="modindex.html" title="Module Index"><img src='../icons/modules.png' | |
| 169 | border='0' height='32' alt='Module Index' width='32' /></a></td> | |
| 170 | <td class='online-navigation'><a rel="index" title="Index" | |
| 171 | href="genindex.html"><img src='../icons/index.png' | |
| 172 | border='0' height='32' alt='Index' width='32' /></A></td> | |
| 173 | </tr></table> | |
| 174 | <div class='online-navigation'> | |
| 175 | <b class="navlabel">Previous:</b> | |
| 176 | <a class="sectref" rel="prev" href="controlswindow-object.html">2.8.3 ControlsWindow Object</A> | |
| 177 | <b class="navlabel">Up:</b> | |
| 178 | <a class="sectref" rel="parent" href="module-FrameWork.html">2.8 FrameWork </A> | |
| 179 | <b class="navlabel">Next:</b> | |
| 180 | <a class="sectref" rel="next" href="dialogwindow-objects.html">2.8.5 DialogWindow Objects</A> | |
| 181 | </div> | |
| 182 | </div> | |
| 183 | <hr /> | |
| 184 | <span class="release-info">Release 2.4.2, documentation updated on 28 September 2005.</span> | |
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