\usepackage{listings}
\newcommand{\bs}{\textbackslash}
\pdsetup{palette=white}
+\definecolor{darkblue}{rgb}{0,0,.6}
+\definecolor{darkred}{rgb}{.6,0,0}
+\definecolor{darkgreen}{rgb}{0,.6,0}
+\definecolor{darkgray}{gray}{.3}
+\definecolor{lightblue}{rgb}{0.97,0.99,1}
+
+\lstloadlanguages{C}
+\lstdefinestyle{colors}{keywordstyle={\bf\color{darkblue}}, commentstyle={\em\color{magenta}}, stringstyle={\color{darkred}},%
+ emphstyle={\color{darkgray}}}
\lstnewenvironment{code}{%
- \lstset{frame=single, basicstyle=\footnotesize\ttfamily}
+ \lstset{frame=single, basicstyle=\footnotesize\ttfamily, language=C, showstringspaces=false,%
+ style=colors, numbers=left, morekeywords={xcb_get_window_attributes_cookie_t, xcb_map_request_event_t,%
+ xcb_connection_t, xcb_get_window_attributes_reply_t, window_attributes_t, xcb_intern_atom_cookie_t,%
+ xcb_intern_atom_reply_t, xcb_atom_t},%
+ moreemph={xcb_get_window_attributes_reply, xcb_get_window_attributes_unchecked, manage_window,%
+ add_ignore_event, xcb_intern_atom, xcb_intern_atom_reply, fprintf, printf, free, load_configuration,%
+ XInternAtom, exit, strlen}}
}{}
\title{i3 - an improved dynamic tiling window manager}
\author{sECuRE beim NoName e.V.\\
\begin{document}
\maketitle
-%\begin{slide}{Inhalt}
-%\begin{list}{$\bullet$}{\itemsep=1em}
-% \item Bevor es losgeht
-% \item Wie man korrekt kompiliert (Symbols)
-% \item Grundwissen gdb
-% \item Wenn es knallt (Core dumps)
-% \item (Conditional) Breakpoints/Watchpoints
-% \item Abkürzungen
-% \item Macros
-%\end{list}
-%\end{slide}
-
\begin{slide}{Geschichte}
\begin{list}{$\bullet$}{\itemsep=1em}
\item<1-> „All window managers suck, this one just sucks less”?
\end{list}
\end{slide}
+\begin{slide}{Typische Kommunikation mit X}
+\begin{list}{$\bullet$}{\itemsep=1em}
+ \item<1-> Verbindung aufbauen
+ \item<2-> Requests über die Leitung schicken (Fenster erzeugen)
+ \item<3-> Eventloop starten, reagieren (Fenster zeichnen, Eingaben, …)
+\end{list}
+\end{slide}
+
\begin{slide}{Was genau macht ein WM?}
\begin{list}{$\bullet$}{\itemsep=1em}
- \item<1-> Neue Fenster positionieren
- \item<2-> Titelleisten malen (reparenting)
- \item<3-> Den Fokus verwalten
- \item<4-> Mit Hints umgehen (Fullscreen, Dock, …)
+ \item<1-> Events umlenken
+ \item<2-> Neue Fenster anzeigen/positionieren (MapRequest)
+ \item<3-> Titelleisten malen (reparenting)
+ \item<4-> Den Fokus verwalten
+ \item<5-> Mit Hints umgehen (Fenstertitel, Fullscreen, Dock, …)
+ \item<6-> Auf Benutzereingaben reagieren
\end{list}
\end{slide}
\end{list}
\end{slide}
+\begin{slide}[method=direct]{Protokoll, Beispielcode}
+\begin{code}
+int handle_map_request(void *prophs, xcb_connection_t *conn,
+ xcb_map_request_event_t *event) {
+ xcb_get_window_attributes_cookie_t cookie;
+ xcb_get_window_attributes_reply_t *reply;
+
+ cookie = xcb_get_window_attributes_unchecked(conn, event->window);
+
+ if ((reply = xcb_get_window_attributes_reply(conn, cookie, NULL))
+ == NULL) {
+ LOG("Could not get window attributes\n");
+ return -1;
+ }
+
+ window_attributes_t wa = { TAG_VALUE };
+ wa.u.override_redirect = reply->override_redirect;
+
+ add_ignore_event(event->sequence);
+
+ manage_window(prophs, conn, event->window, wa);
+
+ return 1;
+}
+\end{code}
+\end{slide}
+
\begin{slide}{Was an X nicht so toll ist}
\begin{list}{$\bullet$}{\itemsep=1em}
\item<1-> Einige race conditions vorhanden
\end{list}
\end{slide}
+\begin{slide}[method=direct]{Xlib-Beispielcode}
+\begin{code}
+ char *names[10] = {"_NET_SUPPORTED", "_NET_WM_STATE",
+ "_NET_WM_STATE_FULLSCREEN", "_NET_WM_NAME" /* ... */};
+ Atom atoms[10];
+
+ /* Get atoms */
+ for (int i = 0; i < 10; i++) {
+ atoms[i] = XInternAtom(display, names[i], 0);
+ }
+\end{code}
+\end{slide}
+
+\begin{slide}[method=direct]{XCB-Beispielcode}
+\begin{code}
+char *names[10] = {"_NET_SUPPORTED", "_NET_WM_STATE",
+ "_NET_WM_STATE_FULLSCREEN", "_NET_WM_NAME" /* ... */};
+xcb_intern_atom_cookie_t cookies[10];
+
+/* Place requests for atoms as soon as possible */
+for (int c = 0; c < 10; c++)
+ xcb_intern_atom(connection, 0, strlen(names[c]), names[c]);
+
+/* Do other stuff here */
+load_configuration();
+
+/* Get atoms */
+for (int c = 0; c < 10; c++) {
+ xcb_intern_atom_reply_t *reply =
+ xcb_intern_atom_reply(connection, cookies[c], NULL);
+ if (!reply) {
+ fprintf(stderr, "Could not get atom\n");
+ exit(-1);
+ }
+ printf("atom has ID %d\n", reply->atom);
+ free(reply);
+}
+\end{code}
+\end{slide}
+
\begin{slide}{Xft}
\begin{list}{$\bullet$}{\itemsep=1em}
\item<1-> „X FreeType”, library um antialiased fonts zu benutzen
\begin{slide}{Mehr infos}
\begin{list}{$\bullet$}{\itemsep=1em}
\item git-webinterface: \url{http://code.stapelberg.de/git/i3}
- \item Website: \url{http://i3.zekjur.net}
+ \item Website: \url{http://i3wm.org}
\item IRC: \#i3 auf irc.twice-irc.de
\end{list}
\end{slide}