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garbeam@5
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1 /*
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2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>
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3 * See LICENSE file for license details.
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4 */
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5
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6 #include <stdlib.h>
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7 #include <string.h>
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8 #include <X11/Xatom.h>
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9
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10 #include "util.h"
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11 #include "wm.h"
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12
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13 #define CLIENT_MASK (StructureNotifyMask | PropertyChangeMask | EnterWindowMask)
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14
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15 void
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16 update_name(Client *c)
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17 {
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18 XTextProperty name;
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19 int n;
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20 char **list = NULL;
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21
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22 name.nitems = 0;
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23 c->name[0] = 0;
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24 XGetTextProperty(dpy, c->win, &name, net_atom[NetWMName]);
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25 if(!name.nitems)
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26 XGetWMName(dpy, c->win, &name);
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27 if(!name.nitems)
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28 return;
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29 if(name.encoding == XA_STRING)
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30 strncpy(c->name, (char *)name.value, sizeof(c->name));
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31 else {
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32 if(XmbTextPropertyToTextList(dpy, &name, &list, &n) >= Success
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33 && n > 0 && *list)
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34 {
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35 strncpy(c->name, *list, sizeof(c->name));
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36 XFreeStringList(list);
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37 }
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38 }
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39 XFree(name.value);
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40 }
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41
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42 void
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43 update_size(Client *c)
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44 {
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45 XSizeHints size;
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46 long msize;
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47 if(!XGetWMNormalHints(dpy, c->win, &size, &msize) || !size.flags)
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48 size.flags = PSize;
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49 c->flags = size.flags;
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50 if(c->flags & PBaseSize) {
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51 c->basew = size.base_width;
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52 c->baseh = size.base_height;
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53 }
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54 else
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55 c->basew = c->baseh = 0;
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56 if(c->flags & PResizeInc) {
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57 c->incw = size.width_inc;
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58 c->inch = size.height_inc;
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59 }
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60 else
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61 c->incw = c->inch = 0;
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62 if(c->flags & PMaxSize) {
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63 c->maxw = size.max_width;
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64 c->maxh = size.max_height;
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65 }
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66 else
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67 c->maxw = c->maxh = 0;
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68 if(c->flags & PMinSize) {
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69 c->minw = size.min_width;
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70 c->minh = size.min_height;
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71 }
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72 else
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73 c->minw = c->minh = 0;
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74 }
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75
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76 void
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77 focus(Client *c)
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78 {
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79 Client **l, *old;
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80
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81 old = stack;
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82 for(l=&stack; *l && *l != c; l=&(*l)->snext);
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83 eassert(*l == c);
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84 *l = c->snext;
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85 c->snext = stack;
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86 stack = c;
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87 XRaiseWindow(dpy, c->win);
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88 XRaiseWindow(dpy, c->title);
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89 XSetInputFocus(dpy, c->win, RevertToPointerRoot, CurrentTime);
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90 if(old && old != c) {
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91 XMapWindow(dpy, old->title);
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92 draw_client(old);
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93 }
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94 XUnmapWindow(dpy, c->title);
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95 draw_bar();
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96 discard_events(EnterWindowMask);
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97 XFlush(dpy);
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98 }
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99
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100 void
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101 manage(Window w, XWindowAttributes *wa)
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102 {
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103 Client *c, **l;
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104 XSetWindowAttributes twa;
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105
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106 c = emallocz(sizeof(Client));
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107 c->win = w;
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108 c->tx = c->x = wa->x;
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109 c->ty = c->y = wa->y;
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110 c->tw = c->w = wa->width;
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111 c->h = wa->height;
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112 c->th = barrect.height;
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113 update_size(c);
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114 XSetWindowBorderWidth(dpy, c->win, 1);
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115 XSetWindowBorder(dpy, c->win, brush.border);
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116 XSelectInput(dpy, c->win, CLIENT_MASK);
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117 XGetTransientForHint(dpy, c->win, &c->trans);
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118 twa.override_redirect = 1;
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119 twa.background_pixmap = ParentRelative;
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120 twa.event_mask = ExposureMask;
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121
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122 c->title = XCreateWindow(dpy, root, c->tx, c->ty, c->tw, c->th,
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123 0, DefaultDepth(dpy, screen), CopyFromParent,
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124 DefaultVisual(dpy, screen),
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125 CWOverrideRedirect | CWBackPixmap | CWEventMask, &twa);
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126 update_name(c);
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127
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128 for(l=&clients; *l; l=&(*l)->next);
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129 c->next = *l; /* *l == nil */
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130 *l = c;
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131 c->snext = stack;
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132 stack = c;
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133 XMapWindow(dpy, c->win);
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134 XMapWindow(dpy, c->title);
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135 XGrabButton(dpy, Button1, Mod1Mask, c->win, False, ButtonPressMask,
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136 GrabModeAsync, GrabModeSync, None, None);
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137 XGrabButton(dpy, Button2, Mod1Mask, c->win, False, ButtonPressMask,
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138 GrabModeAsync, GrabModeSync, None, None);
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139 XGrabButton(dpy, Button3, Mod1Mask, c->win, False, ButtonPressMask,
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140 GrabModeAsync, GrabModeSync, None, None);
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141 resize(c);
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142 focus(c);
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143 }
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144
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145 void
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146 resize(Client *c)
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147 {
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148 XConfigureEvent e;
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149
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150 XMoveResizeWindow(dpy, c->win, c->x, c->y, c->w, c->h);
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151 e.type = ConfigureNotify;
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152 e.event = c->win;
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153 e.window = c->win;
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154 e.x = c->x;
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155 e.y = c->y;
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156 e.width = c->w;
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157 e.height = c->h;
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158 e.border_width = 0;
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159 e.above = None;
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160 e.override_redirect = False;
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161 XSelectInput(dpy, c->win, CLIENT_MASK & ~StructureNotifyMask);
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162 XSendEvent(dpy, c->win, False, StructureNotifyMask, (XEvent *)&e);
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163 XSelectInput(dpy, c->win, CLIENT_MASK);
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164 XFlush(dpy);
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165 }
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166
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167 static int
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168 dummy_error_handler(Display *dpy, XErrorEvent *error)
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169 {
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170 return 0;
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171 }
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172
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173 void
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174 unmanage(Client *c)
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175 {
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176 Client **l;
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177
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178 XGrabServer(dpy);
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179 XSetErrorHandler(dummy_error_handler);
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180
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181 XUngrabButton(dpy, AnyButton, AnyModifier, c->win);
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182 XDestroyWindow(dpy, c->title);
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183
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184 for(l=&clients; *l && *l != c; l=&(*l)->next);
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185 eassert(*l == c);
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186 *l = c->next;
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187 for(l=&stack; *l && *l != c; l=&(*l)->snext);
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188 eassert(*l == c);
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189 *l = c->snext;
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190 free(c);
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191
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192 XFlush(dpy);
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193 XSetErrorHandler(error_handler);
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194 XUngrabServer(dpy);
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195 if(stack)
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196 focus(stack);
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197 }
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198
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199 Client *
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200 gettitle(Window w)
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201 {
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202 Client *c;
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203 for(c = clients; c; c = c->next)
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204 if(c->title == w)
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205 return c;
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206 return NULL;
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207 }
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208
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209 Client *
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210 getclient(Window w)
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211 {
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212 Client *c;
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213 for(c = clients; c; c = c->next)
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214 if(c->win == w)
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215 return c;
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216 return NULL;
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217 }
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218
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219 void
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220 draw_client(Client *c)
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221 {
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222 if(c == stack)
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223 draw_bar();
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224
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225 c->tw = textwidth(&brush.font, c->name) + labelheight(&brush.font);
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226 c->tx = c->x + c->w - c->tw + 2;
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227 c->ty = c->y;
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228 XMoveResizeWindow(dpy, c->title, c->tx, c->ty, c->tw, c->th);
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229
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230 brush.rect.x = brush.rect.y = 0;
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231 brush.rect.width = c->tw;
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232 brush.rect.height = c->th;
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233
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234 draw(dpy, &brush, True, c->name);
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235 XCopyArea(dpy, brush.drawable, c->title, brush.gc,
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236 0, 0, c->tw, c->th, 0, 0);
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237 XFlush(dpy);
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238 }
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