[layouts] Add magnifier layout

Signed-off-by: Julien Danjou <julien@danjou.info>

Makefile.am

@@ -26,6 +26,8 @@ LAYOUTS += layouts/max.h
 LAYOUTS += layouts/fibonacci.c
 LAYOUTS += layouts/fibonacci.h
 
+LAYOUTS += layouts/magnifier.c
+LAYOUTS += layouts/magnifier.h
 
 WIDGETS =
 WIDGETS += widgets/taglist.c

awesomerc.lua.in

@@ -18,7 +18,7 @@ terminal = "xterm"
 -- However, you can use another modifier like Mod1, but it may interact with others.
 modkey = "Mod4"
 -- Table of layouts to cover with awful.layout.inc, order matters.
-layouts = { "tile", "tileleft", "tilebottom", "tiletop", "max", "spiral", "dwindle", "floating" }
+layouts = { "tile", "tileleft", "tilebottom", "tiletop", "magnifier", "max", "spiral", "dwindle", "floating" }
 -- }}}
 
 -- {{{ Tags

layouts/magnifier.c

@@ -0,0 +1,75 @@
+/*
+ * magnifier.c - magnifier layout
+ *
+ * Copyright © 2008 Julien Danjou <julien@danjou.info>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include "client.h"
+#include "tag.h"
+#include "screen.h"
+#include "focus.h"
+#include "layouts/magnifier.h"
+
+extern awesome_t globalconf;
+
+void
+layout_magnifier(int screen)
+{
+    int n = 0;
+    client_t *c, *focus;
+    area_t geometry, area = screen_get_area(screen,
+                                            globalconf.screens[screen].statusbar,
+                                            &globalconf.screens[screen].padding);
+
+    focus = focus_get_current_client(screen);
+
+    /* If focused window is not tiled, take the first one which is tiled. */
+    if(!IS_TILED(focus, screen))
+        for(focus = globalconf.clients; focus && !IS_TILED(focus, screen); focus = focus->next);
+
+    /* No windows is tiled, nothing to do. */
+    if(!focus)
+        return;
+
+    geometry.width = area.width * 0.9;
+    geometry.height = area.height * 0.9;
+    geometry.x = area.x + (area.width - geometry.width) / 2;
+    geometry.y = area.y + (area.height - geometry.height) / 2;
+    client_resize(focus, geometry, globalconf.resize_hints);
+
+    for(c = globalconf.clients; c; c = c->next)
+        if(IS_TILED(c, screen) && c != focus)
+            n++;
+
+    geometry.x = area.x;
+    geometry.y = area.y;
+    geometry.height = area.height / n;
+    geometry.width = area.width;
+
+    for(c = globalconf.clients; c; c = c->next)
+        if(IS_TILED(c, screen) && c != focus)
+        {
+            geometry.height -= 2 * c->border;
+            geometry.width -= 2 * c->border;
+            client_resize(c, geometry, globalconf.resize_hints);
+            geometry.height += 2 * c->border;
+            geometry.width += 2 * c->border;
+            geometry.y += geometry.height;
+        }
+}
+// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80

layouts/magnifier.h

@@ -0,0 +1,30 @@
+/*
+ * magnifier.h - magnifier layout header
+ *
+ * Copyright © 2008 Julien Danjou <julien@danjou.info>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#ifndef AWESOME_LAYOUTS_MAGNIFIER_H
+#define AWESOME_LAYOUTS_MAGNIFIER_H
+
+#include "layout.h"
+
+layout_t layout_magnifier;
+
+#endif
+// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80

tag.c

@@ -28,6 +28,7 @@
 #include "ewmh.h"
 #include "widget.h"
 
+#include "layouts/magnifier.h"
 #include "layouts/tile.h"
 #include "layouts/max.h"
 #include "layouts/floating.h"