Vorbereitung 28.11.2019

20191128/gtk-1.c

+#include <gtk/gtk.h>
+
+int main (int argc, char **argv)
+{
+  gtk_init (&argc, &argv);
+  GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_title (GTK_WINDOW (window), "Hello");
+  gtk_widget_show (window);
+  gtk_main ();
+  return 0;
+}

20191128/gtk-2.c

+#include <gtk/gtk.h>
+
+int main (int argc, char **argv)
+{
+  gtk_init (&argc, &argv);
+  GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_title (GTK_WINDOW (window), "Hello");
+  g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
+  gtk_widget_show (window);
+  gtk_main ();
+  return 0;
+}

20191128/gtk-3.c

+#include <gtk/gtk.h>
+
+int main (int argc, char **argv)
+{
+  gtk_init (&argc, &argv);
+  GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_title (GTK_WINDOW (window), "Hello");
+  g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
+  GtkWidget *button = gtk_button_new_with_label ("Quit");
+  g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL);
+  gtk_container_add (GTK_CONTAINER (window), button);
+  gtk_widget_show (button);
+  gtk_widget_show (window);
+  gtk_main ();
+  return 0;
+}

20191128/gtk-4.c

+#include <gtk/gtk.h>
+
+int main (int argc, char **argv)
+{
+  gtk_init (&argc, &argv);
+  GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_title (GTK_WINDOW (window), "Hello");
+  g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
+
+  GtkWidget *vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
+  gtk_container_add (GTK_CONTAINER (window), vbox);
+
+  GtkWidget *button = gtk_button_new_with_label ("Quit");
+  g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL);
+  gtk_container_add (GTK_CONTAINER (vbox), button);
+
+  GtkWidget *drawing_area = gtk_drawing_area_new ();
+  gtk_container_add (GTK_CONTAINER (vbox), drawing_area);
+
+  gtk_widget_show (button);
+  gtk_widget_show (vbox);
+  gtk_widget_show (window);
+  gtk_main ();
+  return 0;
+}

20191128/gtk-5.c

+#include <gtk/gtk.h>
+
+int main (int argc, char **argv)
+{
+  gtk_init (&argc, &argv);
+  GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_title (GTK_WINDOW (window), "Hello");
+  g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
+
+  GtkWidget *vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
+  gtk_container_add (GTK_CONTAINER (window), vbox);
+
+  GtkWidget *button = gtk_button_new_with_label ("Quit");
+  g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL);
+  gtk_container_add (GTK_CONTAINER (vbox), button);
+
+  GtkWidget *drawing_area = gtk_drawing_area_new ();
+  gtk_container_add (GTK_CONTAINER (vbox), drawing_area);
+
+  gtk_widget_show (drawing_area);
+  gtk_widget_show (button);
+  gtk_widget_show (vbox);
+  gtk_widget_show (window);
+  gtk_main ();
+  return 0;
+}

20191128/gtk-6.c

+#include <gtk/gtk.h>
+
+gboolean draw (GtkWidget *widget, cairo_t *c, gpointer data)
+{
+  GdkRGBA red = { 1.0, 0.0, 0.0, 0.8 };
+  GdkRGBA yellow = { 1.0, 1.0, 0.0, 0.6 };
+  GdkRGBA blue = { 0.0, 0.5, 1.0, 0.4 };
+
+  gdk_cairo_set_source_rgba (c, &red);
+  cairo_rectangle (c, 10, 10, 60, 40);
+  cairo_fill (c);
+
+  gdk_cairo_set_source_rgba (c, &yellow);
+  cairo_arc (c, 65, 50, 30, 0, 2 * G_PI);
+  cairo_fill (c);
+
+  gdk_cairo_set_source_rgba (c, &blue);
+  cairo_move_to (c, 10, 70);
+  cairo_line_to (c, 70, 70);
+  cairo_line_to (c, 40, 18);
+  cairo_close_path (c);
+  cairo_fill (c);
+
+  return FALSE;  /* TRUE to stop other handlers from being invoked for the event.
+                    FALSE to propagate the event further. */
+}
+
+int main (int argc, char **argv)
+{
+  gtk_init (&argc, &argv);
+  GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_title (GTK_WINDOW (window), "Hello");
+  g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
+
+  GtkWidget *vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
+  gtk_container_add (GTK_CONTAINER (window), vbox);
+
+  GtkWidget *button = gtk_button_new_with_label ("Quit");
+  g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL);
+  gtk_container_add (GTK_CONTAINER (vbox), button);
+
+  GtkWidget *drawing_area = gtk_drawing_area_new ();
+  gtk_container_add (GTK_CONTAINER (vbox), drawing_area);
+  g_signal_connect (drawing_area, "draw", G_CALLBACK (draw), NULL);
+  gtk_widget_set_size_request (drawing_area, 100, 100);
+
+  gtk_widget_show (drawing_area);
+  gtk_widget_show (button);
+  gtk_widget_show (vbox);
+  gtk_widget_show (window);
+  gtk_main ();
+  return 0;
+}

20191128/gtk-7.c

+#include <stdio.h>
+#include <gtk/gtk.h>
+
+gboolean draw (GtkWidget *widget, cairo_t *c, gpointer data)
+{
+  GdkRGBA red = { 1.0, 0.0, 0.0, 0.8 };
+  GdkRGBA yellow = { 1.0, 1.0, 0.0, 0.6 };
+  GdkRGBA blue = { 0.0, 0.5, 1.0, 0.4 };
+
+  gdk_cairo_set_source_rgba (c, &red);
+  cairo_rectangle (c, 10, 10, 60, 40);
+  cairo_fill (c);
+
+  gdk_cairo_set_source_rgba (c, &yellow);
+  cairo_arc (c, 65, 50, 30, 0, 2 * G_PI);
+  cairo_fill (c);
+
+  gdk_cairo_set_source_rgba (c, &blue);
+  cairo_move_to (c, 10, 70);
+  cairo_line_to (c, 70, 70);
+  cairo_line_to (c, 40, 18);
+  cairo_close_path (c);
+  cairo_fill (c);
+
+  return FALSE;  /* TRUE to stop other handlers from being invoked for the event.
+                    FALSE to propagate the event further. */
+}
+
+gboolean button_press (GtkWidget *widget, GdkEventButton *e, gpointer data)
+{
+  printf ("button %d pressed at (%lf, %lf)\n", e->button, e->x, e->y);
+  return FALSE;
+}
+
+gboolean key_press (GtkWidget *widget, GdkEventKey *e, gpointer data)
+{
+  printf ("key '%c' (%d) pressed\n", e->keyval, e->keyval);
+  return FALSE;
+}
+
+int main (int argc, char **argv)
+{
+  gtk_init (&argc, &argv);
+  GtkWidget *window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
+  gtk_window_set_title (GTK_WINDOW (window), "Hello");
+  g_signal_connect (window, "destroy", G_CALLBACK (gtk_main_quit), NULL);
+
+  GtkWidget *vbox = gtk_box_new (GTK_ORIENTATION_VERTICAL, 5);
+  gtk_container_add (GTK_CONTAINER (window), vbox);
+
+  GtkWidget *button = gtk_button_new_with_label ("Quit");
+  g_signal_connect (button, "clicked", G_CALLBACK (gtk_main_quit), NULL);
+  gtk_container_add (GTK_CONTAINER (vbox), button);
+
+  GtkWidget *drawing_area = gtk_drawing_area_new ();
+  gtk_container_add (GTK_CONTAINER (vbox), drawing_area);
+  g_signal_connect (drawing_area, "draw", G_CALLBACK (draw), NULL);
+  gtk_widget_set_size_request (drawing_area, 100, 100);
+  gtk_widget_add_events (drawing_area, GDK_BUTTON_PRESS_MASK);
+  g_signal_connect (drawing_area, "button_press_event", G_CALLBACK (button_press), NULL);
+
+  gtk_widget_add_events (window, GDK_KEY_PRESS_MASK);
+  g_signal_connect (window, "key_press_event", G_CALLBACK (key_press), NULL);
+
+  gtk_widget_show (drawing_area);
+  gtk_widget_show (button);
+  gtk_widget_show (vbox);
+  gtk_widget_show (window);
+  gtk_main ();
+  return 0;
+}

20191128/hp-20191128.tex

@@ -56,12 +56,22 @@
       \hfill\makebox(0,0)[br]{\raisebox{2.25ex}{\url{https://gitlab.cvh-server.de/pgerwinski/hp}}}
     \item[\textbf{2}] \textbf{Einführung in C}
     \item[\textbf{3}] \textbf{Bibliotheken}
+      \begin{itemize}
+        \color{orange}
+        \item[3.1] Der Präprozessor
+        \item[3.2] Bibliotheken einbinden
+        \color{red}
+        \item[3.3] Bibliotheken verwenden
+        \item[3.4] Projekt organisieren: make
+%        \vspace*{-\smallskipamount}
+%        \item[\dots]
+      \end{itemize}
+    \vspace*{-\smallskipamount}
     \item[\textbf{4}] \textbf{Hardwarenahe Programmierung}
       \begin{itemize}
-        \color{medgreen}
         \item[4.1] Bit-Operationen
         \item[4.2] I/O-Ports
-        \color{red}
+        \color{medgreen}
         \item[4.3] Interrupts
         \item[4.4] volatile-Variable
         \vspace*{-0.1cm}
@@ -79,35 +89,6 @@
 \subsection{Bit-Operationen}
 \subsubsection{Zahlensysteme}
 
-\begin{frame}[fragile]
-
-  \showsection
-  \vspace*{-\smallskipamount}
-  \showsubsection
-  \vspace*{-\medskipamount}
-  \showsubsubsection
-
-  \begin{tabular}{rlrl}
-    Basis & Name & Beispiel & Anwendung \\[\smallskipamount]
-      2 & Binärsystem & 1\,0000\,0011 & Bit-Operationen \\
-      8 & Oktalsystem & \lstinline,0403, & Dateizugriffsrechte (Unix) \\
-     10 & Dezimalsystem & \lstinline,259, & Alltag \\
-     16 & Hexadezimalsystem & \lstinline,0x103, & Bit-Operationen \\
-    256 & (keiner gebräuchlich) & 0.0.1.3 & IP-Adressen (IPv4)
-  \end{tabular}
-
-  \bigskip
-
-  \begin{itemize}
-    \item
-      Computer rechnen im Binärsystem.
-    \item
-      Für viele Anwendungen (z.\,B.\ I/O-Ports, Grafik, \dots) ist es notwendig,\\
-      Bits in Zahlen einzeln ansprechen zu können.
-  \end{itemize}
-
-\end{frame}
-
 \begin{frame}[fragile]
 
   \showsubsubsection
@@ -344,6 +325,14 @@
 
 \end{frame}
 
+\begin{frame}
+  \textbf{Pull-Up- und Pull-Down-Widerstände}
+  \smallskip
+  \begin{center}
+    \includegraphics[width=8cm]{pull-up-pull-down.jpg}
+  \end{center}
+\end{frame}
+
 \subsection{Interrupts}
 
 \begin{frame}[fragile]
@@ -356,7 +345,7 @@
 
   Beispiel: eingebaute Uhr\hfill
   \makebox(0,0)[tr]{%
-    \only<2->{\begin{minipage}[t]{4.7cm}
+    \only<1->{\begin{minipage}[t]{4.7cm}
         \vspace*{-0.3cm}%
         statt Zählschleife (\lstinline{_delay_ms}):\\
         Hauptprogramm kann\\
@@ -517,51 +506,6 @@
 
 \end{frame}
 
-\nosectionnonumber{\inserttitle}
-
-\begin{frame}
-
-  \shownosectionnonumber
-
-  \begin{itemize}
-    \item[\textbf{1}] \textbf{Einführung}
-      \hfill\makebox(0,0)[br]{\raisebox{2.25ex}{\url{https://gitlab.cvh-server.de/pgerwinski/hp}}}
-    \item[\textbf{2}] \textbf{Einführung in C}
-      \begin{itemize}
-        \vspace*{-\smallskipamount}
-        \item[\dots]
-        \item[2.12] Strukturen
-        \item[2.13] Dateien und Fehlerbehandlung
-        \item[2.14] Parameter des Hauptprogramms
-        \item[2.15] String-Operationen
-      \end{itemize}
-    \item[\textbf{3}] \textbf{Bibliotheken}
-%      \begin{itemize}
-%        \color{red}
-%        \item[3.1] Der Präprozessor
-%        \item[3.2] Bibliotheken einbinden
-%        \item[3.3] Bibliotheken verwenden
-%        \vspace*{-\smallskipamount}
-%        \item[\dots]
-%%        \item[3.4] Projekt organisieren: make
-%      \end{itemize}
-%    \vspace*{-\smallskipamount}
-    \item[\textbf{4}] \textbf{Hardwarenahe Programmierung}
-      \begin{itemize}
-        \item[4.1] Bit-Operationen
-        \item[4.2] I/O-Ports
-        \color{medgreen}
-        \item[4.3] Interrupts
-        \item[4.4] volatile-Variable
-        \vspace*{-0.1cm}
-        \item[\dots]
-      \end{itemize}
-    \item[\textbf{5}] \textbf{Algorithmen}
-    \item[\textbf{\dots}]
-  \end{itemize}
-
-\end{frame}
-
 \setcounter{section}{2}
 \section{Bibliotheken}
 \subsection{Der Präprozessor}
@@ -610,28 +554,28 @@
 
   Inhalt der Header-Datei: externe Deklarationen
 
-%  \pause
+  \pause
   \smallskip
   \lstinline{extern int answer (void);}
 
-%  \pause
+  \pause
   \smallskip
   \lstinline{extern int printf (__const char *__restrict __format, ...);}
 
-%  \pause
+  \pause
   \bigskip
   Funktion wird "`anderswo"' definiert
   \begin{itemize}
-%    \pause
+    \pause
     \item
       separater C-Quelltext: mit an \lstinline[style=terminal]{gcc} übergeben
-%    \pause
+    \pause
     \item
       Zusammenfügen zu ausführbarem Programm durch den \newterm{Linker}
-%    \pause
+    \pause
     \item
       vorcompilierte Bibliothek: \lstinline[style=terminal]{-lfoo}\\
-%      \pause
+      \pause
       = Datei \file{libfoo.a} in Standard-Verzeichnis
   \end{itemize}
 

20191128/io-ports-and-interrupts.pdf

+../common/io-ports-and-interrupts.pdf
\ No newline at end of file