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annotate src/extw-Xt.c @ 5554:a42e686a01bf

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Automated merge with file:///Sources/xemacs-21.5-checked-out
author Aidan Kehoe <kehoea@parhasard.net>
date Wed, 24 Aug 2011 11:07:26 +0100
parents 2aa9cd456ae7
children
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1 /* Common code between client and shell widgets -- Xt only.
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2 Copyright (C) 1993, 1994 Sun Microsystems, Inc.
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3
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4 This library is free software: you can redistribute it and/or modify it
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5 under the terms of the GNU General Public License as published by the
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6 Free Software Foundation, either version 3 of the License, or (at your
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7 option) any later version.
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8
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9 This library is distributed in the hope that it will be useful, but WITHOUT
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10 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this library. If not, see <http://www.gnu.org/licenses/>. */
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16
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17 /* Synched up with: Not in FSF. */
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18
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19 /* Written by Ben Wing, September 1993. */
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20
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21 #ifdef emacs
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22
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23 #include <config.h>
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24
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25 #ifndef EXTERNAL_WIDGET
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26 ERROR! This ought not be getting compiled if EXTERNAL_WIDGET is undefined
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27 #endif
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28
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29 EXTERN_C void fatal (const char *fmt, ...);
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30 #else /* not emacs */
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31 static void fatal (char *msg);
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32 #endif
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33
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34 #include <X11/Intrinsic.h>
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35 #include <X11/IntrinsicP.h>
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36 #include <stdlib.h>
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37 #include <stdio.h>
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38 #include "compiler.h"
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39 #include "extw-Xt.h"
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40
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41 #ifdef DEBUG_WIDGET
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42
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43 static int geom_masks[] = {
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44 CWX, CWY, CWWidth, CWHeight, CWBorderWidth, CWSibling, CWStackMode,
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45 XtCWQueryOnly };
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46 static char *geom_mask_strings[] = {
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47 "CWX", "CWY", "CWWidth", "CWHeight", "CWBorderWidth",
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48 "CWSibling", "CWStackMode", "XtCWQueryOnly" };
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49 static int stack_modes[] = {
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50 Below, TopIf, BottomIf, Opposite, XtSMDontChange };
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51 static char *stack_mode_strings[] = {
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52 "Below", "TopIf", "BottomIf", "Opposite", "XtSMDontChange" };
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53
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54 static void
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55 print_geometry_structure(XtWidgetGeometry *xwg)
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56 {
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57 int num = sizeof(geom_masks)/sizeof(int);
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58 int i;
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59
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60 printf (" masks:");
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61 for (i=0; i<num; i++)
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62 if (xwg->request_mode & geom_masks[i])
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63 printf (" %s", geom_mask_strings[i]);
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64 printf ("\n");
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65 printf (" x:%d y:%d\n", xwg->x, xwg->y);
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66 printf (" width:%d height:%d border_width:%d\n", xwg->width,
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67 xwg->height, xwg->border_width);
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68 printf (" sibling: %x\n", xwg->sibling);
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69 printf (" stack_mode: ");
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70 for (i=0, num=sizeof(stack_modes)/sizeof(int); i<num; i++)
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71 if (xwg->stack_mode == stack_modes[i]) {
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72 printf ("%s", stack_mode_strings[i]);
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73 break;
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74 }
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75 printf ("\n");
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76 }
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77
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78 static void
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79 print_geometry_result (XtGeometryResult res)
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80 {
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81 printf ("result: %s\n",
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82 res == XtGeometryYes ? "XtGeometryYes" :
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83 res == XtGeometryNo ? "XtGeometryNo" :
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84 res == XtGeometryAlmost ? "XtGeometryAlmost" :
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85 res == XtGeometryDone ? "XtGeometryDone" :
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86 "unknown");
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87 }
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88
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89 #endif
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90
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91 #ifndef emacs
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92
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93 static void
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94 fatal (char *msg)
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95 {
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96 fprintf (stderr, "%s", msg);
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97 exit (1);
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98 }
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99
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100 #endif
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101
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102 /* put a geometry specification in the specified property on the window
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103 of the specified widget, and send a notification message to tell the
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104 client-side widget about this. */
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105
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106 void
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107 extw_send_geometry_value(Display *display, Window win, Atom property,
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108 en_extw_notify type, XtWidgetGeometry *xwg,
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109 long data0)
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110 {
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111 if (xwg != NULL)
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112 XChangeProperty(display, win, property,
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113 a_EXTW_WIDGET_GEOMETRY, 32, PropModeReplace,
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114 (unsigned char *) xwg, sizeof(*xwg)/sizeof(int));
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115 extw_send_notify_3(display, win, type, data0, 0, 0);
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116 }
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117
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118 /* get the geometry specification stored in the specified property of the
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119 specified widget's window. */
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120
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121 void
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122 extw_get_geometry_value(Display *display, Window win, Atom property,
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123 XtWidgetGeometry *xwg)
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124 {
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125 Atom dummy;
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126 int format;
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127 unsigned long nitems, bytes_after;
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128 unsigned char *prop;
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129
0
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130 if (XGetWindowProperty(display, win, property, 0,
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131 sizeof(*xwg)/4, False, a_EXTW_WIDGET_GEOMETRY,
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132 &dummy, &format, &nitems, &bytes_after,
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133 &prop) != Success)
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134 goto error;
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135 if (format != 8*sizeof(int) || bytes_after) {
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136 XFree((char *) prop);
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137 goto error;
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138 }
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139 *xwg = * (XtWidgetGeometry *) prop;
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140 return;
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141
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142 error:
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143 fatal("Unable to retrieve property for widget-geometry");
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144 #if 0
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145 XtAppErrorMsg(XtWidgetToApplicationContext((Widget)w),
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146 "invalidProperty","get_geometry_value",XtCXtToolkitError,
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147 "Unable to retrieve property for widget-geometry",
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148 (String *)NULL, (Cardinal *)NULL);
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149 #endif
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150 }
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151
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152 typedef struct
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153 {
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154 Widget w;
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155 unsigned long request_num;
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156 en_extw_notify type;
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157 } QueryStruct;
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158
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159 /* check if an event is of the sort we're looking for */
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160
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161 static Bool
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162 isMine(XEvent *event, QueryStruct *q)
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163 {
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164 Widget w = q->w;
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165
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166 if ( (event->xany.display != XtDisplay(w)) || (event->xany.window != XtWindow(w)) )
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167 {
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168 return FALSE;
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169 }
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170 if (event->xany.serial >= q->request_num)
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171 {
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172 if (event->type == ClientMessage &&
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173 event->xclient.message_type == a_EXTW_NOTIFY &&
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174 event->xclient.data.l[0] == 1 - extw_which_side &&
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175 event->xclient.data.l[1] == (int) q->type)
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176 {
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177 return TRUE;
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178 }
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179 }
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180 return FALSE;
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181 }
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182
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183 void responseTimeOut(XtPointer clientData, XtIntervalId * UNUSED (id))
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184 {
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185 Bool *expired=(Bool *)clientData;
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186 *expired=TRUE;
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187 }
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188
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189 /* wait for a ClientMessage of the specified type from the other widget, or
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190 time-out. isMine() determines whether an event matches.
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191 Took out the call to _XtWaitForSomething and replaced it with public
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192 Xt api's.
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193 */
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194
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195 Bool
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196 extw_wait_for_response (Widget w, XEvent *event, unsigned long request_num,
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197 en_extw_notify type, unsigned long timeout)
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198 {
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199 XtAppContext app = XtWidgetToApplicationContext(w);
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200 XtInputMask inputMask;
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201 QueryStruct q;
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202 Bool expired;
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203 XtIntervalId id;
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204
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205 q.w = w;
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206 q.request_num = request_num;
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207 q.type = type;
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208 expired=FALSE;
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209
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210 id=XtAppAddTimeOut(app, timeout, responseTimeOut,&expired);
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211 while (!expired)
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212 {
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213 inputMask=XtAppPending(app);
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214 if (inputMask & XtIMXEvent)
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215 {
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216 XtAppNextEvent(app, event);
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217 if (isMine(event,&q))
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218 {
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219 if (!expired) XtRemoveTimeOut(id);
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220 return True;
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221 }
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222 else
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223 {
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224 /* Do Nothing and go back to waiting */
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225 }
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226 }
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227 if (inputMask & XtIMTimer)
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228 {
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229 /* Process the expired timer */
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230 XtAppProcessEvent(app,XtIMTimer);
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231 }
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232 }
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233 /* Must have expired */
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234 return False;
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235 }