aewl: 4bf79305d675 view.c

aewl

view view.c @ 380:4bf79305d675

this algorithm seems to keep order for any scenario

author	Anselm R. Garbe <arg@10kloc.org>
date	Tue, 29 Aug 2006 09:57:57 +0200
parents	83576f5f0a90
children	b00cc483d13b

line source

1 /*

2 * (C)opyright MMVI Anselm R. Garbe <garbeam at gmail dot com>

3 * See LICENSE file for license details.

4 */

5 #include "dwm.h"

7 /* static */

9 static Client *

10 getslot(Client *c)

11 {

12 unsigned int i, tic;

13 Client *p;

15 for(tic = 0; tic < ntags && !c->tags[tic]; tic++);

16 for(p = clients; p; p = p->next) {

17 for(i = 0; i < ntags && !p->tags[i]; i++);

18 if(tic < i)

19 return p;

20 }

21 return p;

22 }

24 static Client *

25 tail()

26 {

27 Client *c;

28 for(c = clients; c && c->next; c = c->next);

29 return c;

30 }

32 /* extern */

34 void (*arrange)(Arg *) = DEFMODE;

36 void

37 attach(Client *c)

38 {

39 Client *p;

41 if(!clients) {

42 clients = c;

43 return;

44 }

45 if(!(p = getnext(clients)) && !(p = getslot(c))) {

46 p = tail();

47 c->prev = p;

48 p->next = c;

49 return;

50 }

52 if(p == clients) {

53 c->next = clients;

54 clients->prev = c;

55 clients = c;

56 }

57 else {

58 p->prev->next = c;

59 c->prev = p->prev;

60 p->prev = c;

61 c->next = p;

62 }

63 }

65 void

66 detach(Client *c)

67 {

68 if(c->prev)

69 c->prev->next = c->next;

70 if(c->next)

71 c->next->prev = c->prev;

72 if(c == clients)

73 clients = c->next;

74 c->next = c->prev = NULL;

75 }

77 void

78 dofloat(Arg *arg)

79 {

80 Client *c;

82 for(c = clients; c; c = c->next) {

83 c->ismax = False;

84 if(isvisible(c)) {

85 resize(c, True, TopLeft);

86 }

87 else

88 ban(c);

89 }

90 if(!sel || !isvisible(sel))

91 sel = getnext(clients);

92 if(sel)

93 focus(sel);

94 else

95 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);

96 restack();

97 }

99 void

100 dotile(Arg *arg)

101 {

102 int h, i, n, w;

103 Client *c;

104

105 w = sw - mw;

106 for(n = 0, c = clients; c; c = c->next)

107 if(isvisible(c) && !c->isfloat)

108 n++;

109

110 if(n > 1)

111 h = (sh - bh) / (n - 1);

112 else

113 h = sh - bh;

114

115 for(i = 0, c = clients; c; c = c->next) {

116 c->ismax = False;

117 if(isvisible(c)) {

118 if(c->isfloat) {

119 resize(c, True, TopLeft);

120 continue;

121 }

122 if(n == 1) {

123 c->x = sx;

124 c->y = sy + bh;

125 c->w = sw - 2;

126 c->h = sh - 2 - bh;

127 }

128 else if(i == 0) {

129 c->x = sx;

130 c->y = sy + bh;

131 c->w = mw - 2;

132 c->h = sh - 2 - bh;

133 }

134 else if(h > bh) {

135 c->x = sx + mw;

136 c->y = sy + (i - 1) * h + bh;

137 c->w = w - 2;

138 if(i + 1 == n)

139 c->h = sh - c->y - 2;

140 else

141 c->h = h - 2;

142 }

143 else { /* fallback if h < bh */

144 c->x = sx + mw;

145 c->y = sy + bh;

146 c->w = w - 2;

147 c->h = sh - 2 - bh;

148 }

149 resize(c, False, TopLeft);

150 i++;

151 }

152 else

153 ban(c);

154 }

155 if(!sel || !isvisible(sel))

156 sel = getnext(clients);

157 if(sel)

158 focus(sel);

159 else

160 XSetInputFocus(dpy, root, RevertToPointerRoot, CurrentTime);

161 restack();

162 }

163

164 void

165 focusnext(Arg *arg)

166 {

167 Client *c;

168

169 if(!sel)

170 return;

171

172 if(!(c = getnext(sel->next)))

173 c = getnext(clients);

174 if(c) {

175 focus(c);

176 restack();

177 }

178 }

179

180 void

181 focusprev(Arg *arg)

182 {

183 Client *c;

184

185 if(!sel)

186 return;

187

188 if(!(c = getprev(sel->prev))) {

189 for(c = clients; c && c->next; c = c->next);

190 c = getprev(c);

191 }

192 if(c) {

193 focus(c);

194 restack();

195 }

196 }

197

198 Bool

199 isvisible(Client *c)

200 {

201 unsigned int i;

202

203 for(i = 0; i < ntags; i++)

204 if(c->tags[i] && seltag[i])

205 return True;

206 return False;

207 }

208

209 void

210 restack()

211 {

212 static unsigned int nwins = 0;

213 static Window *wins = NULL;

214 unsigned int f, fi, m, mi, n;

215 Client *c;

216 XEvent ev;

217

218 for(f = 0, m = 0, c = clients; c; c = c->next)

219 if(isvisible(c)) {

220 if(c->isfloat || arrange == dofloat)

221 f++;

222 else

223 m++;

224 }

225 if(!(n = 2 * (f + m))) {

226 drawstatus();

227 return;

228 }

229 if(nwins < n) {

230 nwins = n;

231 wins = erealloc(wins, nwins * sizeof(Window));

232 }

233

234 fi = 0;

235 mi = 2 * f;

236 if(sel->isfloat || arrange == dofloat) {

237 wins[fi++] = sel->twin;

238 wins[fi++] = sel->win;

239 }

240 else {

241 wins[mi++] = sel->twin;

242 wins[mi++] = sel->win;

243 }

244 for(c = clients; c; c = c->next)

245 if(isvisible(c) && c != sel) {

246 if(c->isfloat || arrange == dofloat) {

247 wins[fi++] = c->twin;

248 wins[fi++] = c->win;

249 }

250 else {

251 wins[mi++] = c->twin;

252 wins[mi++] = c->win;

253 }

254 }

255 XRestackWindows(dpy, wins, n);

256 drawall();

257 XSync(dpy, False);

258 while(XCheckMaskEvent(dpy, EnterWindowMask, &ev));

259 }

260

261 void

262 togglemode(Arg *arg)

263 {

264 arrange = (arrange == dofloat) ? dotile : dofloat;

265 if(sel)

266 arrange(NULL);

267 else

268 drawstatus();

269 }

270

271 void

272 toggleview(Arg *arg)

273 {

274 unsigned int i;

275

276 seltag[arg->i] = !seltag[arg->i];

277 for(i = 0; i < ntags && !seltag[i]; i++);

278 if(i == ntags)

279 seltag[arg->i] = True; /* cannot toggle last view */

280 arrange(NULL);

281 }

282

283 void

284 view(Arg *arg)

285 {

286 unsigned int i;

287

288 for(i = 0; i < ntags; i++)

289 seltag[i] = False;

290 seltag[arg->i] = True;

291 arrange(NULL);

292 }

293

294 void

295 zoom(Arg *arg)

296 {

297 Client *c = sel;

298

299 if(!c || (arrange != dotile) || c->isfloat || c->ismax)

300 return;

301

302 if(c == getnext(clients))

303 if(!(c = getnext(c->next)))

304 return;

305 detach(c);

306 attach(c);

307 focus(c);

308 arrange(NULL);

309 }