Initial commit

17 files changed, 1308 insertions, 0 deletions

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..bc2d161
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,19 @@
+Makefile.in
+configure
+config.h.in
+lib/Makefile.in
+aclocal.m4
+Makefile
+autom4te.cache
+config.h
+config.log
+config.status
+stamp-h1
+src/*.o
+src/.deps
+src/colloquium
+src/.dirstamp
+*~
+INSTALL
+build-aux
+lib
diff --git a/AUTHORS b/AUTHORS
new file mode 100644
index 0000000..53415e1
--- /dev/null
+++ b/AUTHORS
@@ -0,0 +1 @@
+Thomas White <taw@bitwiz.org.uk>
diff --git a/COPYING b/COPYING
new file mode 100644
index 0000000..94a9ed0
--- /dev/null
+++ b/COPYING
@@ -0,0 +1,674 @@
+                    GNU GENERAL PUBLIC LICENSE
+                       Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
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+
+  Later license versions may give you additional or different
+permissions.  However, no additional obligations are imposed on any
+author or copyright holder as a result of your choosing to follow a
+later version.
+
+  15. Disclaimer of Warranty.
+
+  THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
+APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
+HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
+OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
+IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
+ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+  16. Limitation of Liability.
+
+  IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
+WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
+THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
+GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
+USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
+DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
+PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
+EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGES.
+
+  17. Interpretation of Sections 15 and 16.
+
+  If the disclaimer of warranty and limitation of liability provided
+above cannot be given local legal effect according to their terms,
+reviewing courts shall apply local law that most closely approximates
+an absolute waiver of all civil liability in connection with the
+Program, unless a warranty or assumption of liability accompanies a
+copy of the Program in return for a fee.
+
+                     END OF TERMS AND CONDITIONS
+
+            How to Apply These Terms to Your New Programs
+
+  If you develop a new program, and you want it to be of the greatest
+possible use to the public, the best way to achieve this is to make it
+free software which everyone can redistribute and change under these terms.
+
+  To do so, attach the following notices to the program.  It is safest
+to attach them to the start of each source file to most effectively
+state the exclusion of warranty; and each file should have at least
+the "copyright" line and a pointer to where the full notice is found.
+
+    <one line to give the program's name and a brief idea of what it does.>
+    Copyright (C) <year>  <name of author>
+
+    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 3 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, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+  If the program does terminal interaction, make it output a short
+notice like this when it starts in an interactive mode:
+
+    <program>  Copyright (C) <year>  <name of author>
+    This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+    This is free software, and you are welcome to redistribute it
+    under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate
+parts of the General Public License.  Of course, your program's commands
+might be different; for a GUI interface, you would use an "about box".
+
+  You should also get your employer (if you work as a programmer) or school,
+if any, to sign a "copyright disclaimer" for the program, if necessary.
+For more information on this, and how to apply and follow the GNU GPL, see
+<http://www.gnu.org/licenses/>.
+
+  The GNU General Public License does not permit incorporating your program
+into proprietary programs.  If your program is a subroutine library, you
+may consider it more useful to permit linking proprietary applications with
+the library.  If this is what you want to do, use the GNU Lesser General
+Public License instead of this License.  But first, please read
+<http://www.gnu.org/philosophy/why-not-lgpl.html>.
diff --git a/ChangeLog b/ChangeLog
new file mode 100644
index 0000000..c7d1c5a
--- /dev/null
+++ b/ChangeLog
@@ -0,0 +1 @@
+There is no ChangeLog.  Check the version control repository...
diff --git a/Makefile.am b/Makefile.am
new file mode 100644
index 0000000..16462c2
--- /dev/null
+++ b/Makefile.am
@@ -0,0 +1,20 @@
+EXTRA_DIST = configure m4/gnulib-cache.m4
+SUBDIRS = lib
+ACLOCAL_AMFLAGS = -I m4
+
+bin_PROGRAMS = src/colloquium
+
+AM_CFLAGS = -Wall
+AM_CPPFLAGS = -DDATADIR=\""$(datadir)"\" -I$(top_builddir)/lib -I$(top_srcdir)/lib
+LDADD = $(top_builddir)/lib/libgnu.a @IGNORE_UNUSED_LIBRARIES_CFLAGS@
+
+src_colloquium_SOURCES = src/colloquium.c src/presentation.c src/mainwindow.c
+
+INCLUDES = "-I$(top_srcdir)/data"
+
+EXTRA_DIST += src/presentation.h src/mainwindow.h
+
+colloquiumdir = $(datadir)/colloquium
+colloquium_DATA = data/colloquium.ui
+
+EXTRA_DIST += $(colloquium_DATA)
diff --git a/NEWS b/NEWS
new file mode 100644
index 0000000..40f527c
--- /dev/null
+++ b/NEWS
@@ -0,0 +1 @@
+There is no NEWS.  Check the version control repository...
diff --git a/README b/README
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/README
diff --git a/autogen.sh b/autogen.sh
new file mode 100755
index 0000000..714b07e
--- /dev/null
+++ b/autogen.sh
@@ -0,0 +1,7 @@
+#!/bin/sh
+
+gnulib-tool --update
+aclocal -I m4
+autoconf
+autoheader
+automake -ac
diff --git a/configure.ac b/configure.ac
new file mode 100644
index 0000000..435d5ce
--- /dev/null
+++ b/configure.ac
@@ -0,0 +1,69 @@
+dnl Process this file with autoconf to produce a configure script.
+
+AC_INIT(colloquium, 0.0.1, taw@bitwiz.org.uk)
+AC_CONFIG_AUX_DIR([build-aux])
+AM_CONFIG_HEADER(config.h)
+AM_INIT_AUTOMAKE([subdir-objects])
+AC_CONFIG_MACRO_DIR(m4)
+
+AC_PROG_CC
+gl_EARLY
+AM_PROG_CC_C_O
+AC_PROG_AWK
+AC_PROG_INSTALL
+AC_PROG_LN_S
+AC_PROG_RANLIB
+AM_SILENT_RULES([yes])
+
+AC_HEADER_STDC
+AC_CHECK_HEADERS([fcntl.h stdlib.h unistd.h])
+AC_C_CONST
+AC_FUNC_MALLOC
+AC_TYPE_SIGNAL
+
+gl_INIT
+
+
+AM_PATH_GTK_2_0(2.0.0,
+[ ],
+[
+   AC_MSG_ERROR([GTK is required.])
+])
+
+
+PKG_CHECK_MODULES([libPNG], [libpng >= 1.2.0],
+[  ],
+[
+   AC_MSG_ERROR([LibPNG is required.])
+])
+
+
+PKG_CHECK_MODULES([Cairo], [cairo >= 1.2.0],
+[  ],
+[
+   AC_MSG_ERROR([Cairo is required.])
+])
+
+
+PKG_CHECK_MODULES([GDK_pixbuf], [gdk-pixbuf], [],
+[
+   PKG_CHECK_MODULES([GDK_pixbuf_2], [gdk-pixbuf-2.0],
+   [   ],
+   [
+      AC_MSG_ERROR([GDK-pixbuf is required.])
+   ])
+])
+
+
+gl_IGNORE_UNUSED_LIBRARIES
+
+
+CFLAGS="$CFLAGS $GTK_CFLAGS -D_GNU_SOURCE $libPNG_CFLAGS $Cairo_CFLAGS"
+CFLAGS="$CFLAGS $GDK_pixbuf_CFLAGS $GDK_pixbuf_2_CFLAGS"
+
+LIBS="$LIBS -lm -lz $GTK_LIBS $libPNG_LIBS $Cairo_LIBS $GDK_pixbuf_LIBS"
+LIBS="$LIBS $GDK_pixbuf_2_LIBS $LDFLAGS"
+
+
+AC_CONFIG_FILES(Makefile lib/Makefile)
+AC_OUTPUT
diff --git a/data/colloquium.ui b/data/colloquium.ui
new file mode 100644
index 0000000..f1668e8
--- /dev/null
+++ b/data/colloquium.ui
@@ -0,0 +1,26 @@
+<ui>
+	<menubar name="displaywindow">
+
+		<menu name="file" action="FileAction">
+			<menuitem name="quit" action="QuitAction" />
+		</menu>
+
+		<menu name="help" action="HelpAction">
+			<menuitem name="about" action="AboutAction" />
+		</menu>
+
+	</menubar>
+
+	<toolbar name="displaywindowtoolbar">
+
+		<toolitem name="add" action="AddSlideAction" />
+		<separator />
+		<toolitem name="first" action="ButtonFirstSlideAction" />
+		<toolitem name="prev" action="ButtonPrevSlideAction" />
+		<toolitem name="next" action="ButtonNextSlideAction" />
+		<toolitem name="last" action="ButtonLastSlideAction" />
+
+	</toolbar>
+
+
+</ui>
diff --git a/m4/.gitignore b/m4/.gitignore
new file mode 100644
index 0000000..ed4fed1
--- /dev/null
+++ b/m4/.gitignore
@@ -0,0 +1,16 @@
+/00gnulib.m4
+/extensions.m4
+/gnulib-common.m4
+/gnulib-comp.m4
+/gnulib-tool.m4
+/include_next.m4
+/lib-ignore.m4
+/onceonly.m4
+/stddef_h.m4
+/string_h.m4
+/strndup.m4
+/strnlen.m4
+/warn-on-use.m4
+/wchar_t.m4
+/memchr.m4
+/mmap-anon.m4
diff --git a/m4/gnulib-cache.m4 b/m4/gnulib-cache.m4
new file mode 100644
index 0000000..e09ed2c
--- /dev/null
+++ b/m4/gnulib-cache.m4
@@ -0,0 +1,35 @@
+# Copyright (C) 2002-2010 Free Software Foundation, Inc.
+#
+# This file is free software, distributed under the terms of the GNU
+# General Public License.  As a special exception to the GNU General
+# Public License, this file may be distributed as part of a program
+# that contains a configuration script generated by Autoconf, under
+# the same distribution terms as the rest of that program.
+#
+# Generated by gnulib-tool.
+#
+# This file represents the specification of how gnulib-tool is used.
+# It acts as a cache: It is written and read by gnulib-tool.
+# In projects that use version control, this file is meant to be put under
+# version control, like the configure.ac and various Makefile.am files.
+
+
+# Specification in the form of a command-line invocation:
+#   gnulib-tool --import --dir=. --lib=libgnu --source-base=lib --m4-base=m4 --doc-base=doc --tests-base=tests --aux-dir=build-aux --no-libtool --macro-prefix=gl lib-ignore strndup
+
+# Specification in the form of a few gnulib-tool.m4 macro invocations:
+gl_LOCAL_DIR([])
+gl_MODULES([
+  lib-ignore
+  strndup
+])
+gl_AVOID([])
+gl_SOURCE_BASE([lib])
+gl_M4_BASE([m4])
+gl_PO_BASE([])
+gl_DOC_BASE([doc])
+gl_TESTS_BASE([tests])
+gl_LIB([libgnu])
+gl_MAKEFILE_NAME([])
+gl_MACRO_PREFIX([gl])
+gl_PO_DOMAIN([])
diff --git a/src/colloquium.c b/src/colloquium.c
new file mode 100644
index 0000000..d9dc4d9
--- /dev/null
+++ b/src/colloquium.c
@@ -0,0 +1,86 @@
+/*
+ * colloquium.c
+ *
+ * Colloquium - A tiny presentation program
+ *
+ * Copyright (c) 2011 Thomas White <taw@bitwiz.org.uk>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <gtk/gtk.h>
+#include <getopt.h>
+
+#include "presentation.h"
+#include "mainwindow.h"
+
+
+static void show_help(const char *s)
+{
+	printf("Syntax: %s [options]\n\n", s);
+	printf(
+"A tiny presentation program.\n"
+"\n"
+"  -h, --help                       Display this help message.\n"
+"\n");
+}
+
+
+int main(int argc, char *argv[])
+{
+	int c;
+	struct presentation *p;
+
+	/* Long options */
+	const struct option longopts[] = {
+		{"help",               0, NULL,               'h'},
+		{0, 0, NULL, 0}
+	};
+
+	gtk_init(&argc, &argv);
+
+	/* Short options */
+	while ((c = getopt_long(argc, argv, "h",
+	                        longopts, NULL)) != -1) {
+
+		switch (c) {
+		case 'h' :
+			show_help(argv[0]);
+			return 0;
+
+		case 0 :
+			break;
+
+		default :
+			return 1;
+		}
+
+	}
+
+	p = new_presentation();
+	if ( open_mainwindow(p) ) {
+		fprintf(stderr, "Couldn't open main window.\n");
+		return 1;
+	}
+
+	gtk_main();
+
+	return 0;
+}
diff --git a/src/mainwindow.c b/src/mainwindow.c
new file mode 100644
index 0000000..b118328
--- /dev/null
+++ b/src/mainwindow.c
@@ -0,0 +1,216 @@
+/*
+ * mainwindow.c
+ *
+ * Colloquium - A tiny presentation program
+ *
+ * Copyright (c) 2011 Thomas White <taw@bitwiz.org.uk>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include <gtk/gtk.h>
+
+#include "presentation.h"
+#include "mainwindow.h"
+
+
+static void add_ui_sig(GtkUIManager *ui, GtkWidget *widget,
+                       GtkContainer *container)
+{
+	gtk_box_pack_start(GTK_BOX(container), widget, FALSE, FALSE, 0);
+	if ( GTK_IS_TOOLBAR(widget) ) {
+		gtk_toolbar_set_show_arrow(GTK_TOOLBAR(widget), TRUE);
+	}
+}
+
+
+static gint quit_sig(GtkWidget *widget, struct presentation *p)
+{
+	gtk_main_quit();
+	return 0;
+}
+
+
+static gint about_sig(GtkWidget *widget, struct presentation *p)
+{
+	GtkWidget *window;
+
+	const gchar *authors[] = {
+		"Thomas White <taw@bitwiz.org.uk>",
+		NULL
+	};
+
+	window = gtk_about_dialog_new();
+	gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(p->window));
+
+	gtk_about_dialog_set_name(GTK_ABOUT_DIALOG(window), "Colloquium");
+	gtk_about_dialog_set_version(GTK_ABOUT_DIALOG(window), PACKAGE_VERSION);
+	gtk_about_dialog_set_copyright(GTK_ABOUT_DIALOG(window),
+		"(c) 2011 Thomas White <taw@bitwiz.org.uk>");
+	gtk_about_dialog_set_comments(GTK_ABOUT_DIALOG(window),
+		"A tiny presentation program");
+	gtk_about_dialog_set_license(GTK_ABOUT_DIALOG(window),
+		"(c) 2011 Thomas White <taw@bitwiz.org.uk>\n");
+	gtk_about_dialog_set_website(GTK_ABOUT_DIALOG(window),
+		"http://www.bitwiz.org.uk/");
+	gtk_about_dialog_set_authors(GTK_ABOUT_DIALOG(window), authors);
+
+	g_signal_connect(window, "response", G_CALLBACK(gtk_widget_destroy),
+			 NULL);
+
+	gtk_widget_show_all(window);
+
+	return 0;
+}
+
+
+static void add_menu_bar(struct presentation *p, GtkWidget *vbox)
+{
+	GError *error = NULL;
+	GtkActionEntry entries[] = {
+
+		{ "FileAction", NULL, "_File", NULL, NULL, NULL },
+		{ "QuitAction", GTK_STOCK_QUIT, "_Quit", NULL, NULL,
+			G_CALLBACK(quit_sig) },
+
+		{ "HelpAction", NULL, "_Help", NULL, NULL, NULL },
+		{ "AboutAction", GTK_STOCK_ABOUT, "_About...",
+			NULL, NULL,  G_CALLBACK(about_sig) },
+
+		{ "AddSlideAction", GTK_STOCK_ADD, "Add Slide",
+			NULL, NULL, NULL },
+		{ "ButtonFirstSlideAction", GTK_STOCK_GOTO_FIRST, "First Slide",
+			NULL, NULL, NULL },
+		{ "ButtonPrevSlideAction", GTK_STOCK_GO_BACK, "Previous Slide",
+			NULL, NULL, NULL },
+		{ "ButtonNextSlideAction", GTK_STOCK_GO_FORWARD, "Next Slide",
+			NULL, NULL, NULL },
+		{ "ButtonLastSlideAction", GTK_STOCK_GOTO_LAST, "Last Slide",
+			NULL, NULL, NULL },
+
+	};
+	guint n_entries = G_N_ELEMENTS(entries);
+
+	p->action_group = gtk_action_group_new("mainwindow");
+	gtk_action_group_add_actions(p->action_group, entries, n_entries, p);
+
+	p->ui = gtk_ui_manager_new();
+	gtk_ui_manager_insert_action_group(p->ui, p->action_group, 0);
+	g_signal_connect(p->ui, "add_widget", G_CALLBACK(add_ui_sig), vbox);
+	if ( gtk_ui_manager_add_ui_from_file(p->ui,
+	     DATADIR"/colloquium/colloquium.ui", &error) == 0 ) {
+		fprintf(stderr, "Error loading main window menu bar: %s\n",
+			error->message);
+		return;
+	}
+
+	gtk_window_add_accel_group(GTK_WINDOW(p->window),
+				   gtk_ui_manager_get_accel_group(p->ui));
+	gtk_ui_manager_ensure_update(p->ui);
+}
+
+
+static gint close_sig(GtkWidget *window, struct presentation *p)
+{
+	gtk_main_quit();
+	return 0;
+}
+
+
+static gboolean expose_sig(GtkWidget *da, GdkEventExpose *event,
+                           struct presentation *p)
+{
+	cairo_t *cr;
+	GtkAllocation allocation;
+	double xoff, yoff;
+
+	cr = gdk_cairo_create(da->window);
+
+	/* Overall background */
+	cairo_rectangle(cr, event->area.x, event->area.y,
+	                event->area.width, event->area.height);
+	cairo_set_source_rgb(cr, 0.8, 0.8, 1.0);
+	cairo_fill(cr);
+
+	/* Get the overall size */
+	gtk_widget_get_allocation(da, &allocation);
+	xoff = (allocation.width - p->slide_width)/2.0;
+	yoff = (allocation.height - p->slide_height)/2.0;
+
+	cairo_translate(cr, xoff, yoff);
+	cairo_rectangle(cr, 0.0, 0.0, p->slide_width, p->slide_height);
+	cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+	cairo_fill(cr);
+
+	cairo_destroy(cr);
+
+	return FALSE;
+}
+
+
+int open_mainwindow(struct presentation *p)
+{
+	GtkWidget *window;
+	GtkWidget *vbox;
+	char *title;
+	GtkWidget *sw;
+
+	if ( p->window != NULL ) {
+		fprintf(stderr, "Presentation window is already open!\n");
+		return 1;
+	}
+
+	window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+	p->window = window;
+
+	title = malloc(strlen(p->titlebar)+14);
+	sprintf(title, "%s - Colloquium", p->titlebar);
+	gtk_window_set_title(GTK_WINDOW(window), title);
+	free(title);
+
+	g_signal_connect(G_OBJECT(window), "destroy", G_CALLBACK(close_sig), p);
+
+	vbox = gtk_vbox_new(FALSE, 0);
+	gtk_container_add(GTK_CONTAINER(window), vbox);
+	add_menu_bar(p, vbox);
+
+	p->drawingarea = gtk_drawing_area_new();
+	sw = gtk_scrolled_window_new(NULL, NULL);
+	gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(sw),
+	                               GTK_POLICY_AUTOMATIC,
+	                               GTK_POLICY_AUTOMATIC);
+	gtk_scrolled_window_add_with_viewport(GTK_SCROLLED_WINDOW(sw),
+	                                      p->drawingarea);
+	gtk_box_pack_start(GTK_BOX(vbox), sw, TRUE, TRUE, 0);
+	gtk_widget_set_size_request(GTK_WIDGET(p->drawingarea),
+	                            p->slide_width + 20,
+	                            p->slide_height + 20);
+
+	g_signal_connect(GTK_OBJECT(p->drawingarea), "expose-event",
+			 G_CALLBACK(expose_sig), p);
+
+	gtk_window_set_default_size(GTK_WINDOW(p->window), 1024+100, 768+100);
+	gtk_window_set_resizable(GTK_WINDOW(p->window), TRUE);
+
+	gtk_widget_show_all(window);
+	return 0;
+}
diff --git a/src/mainwindow.h b/src/mainwindow.h
new file mode 100644
index 0000000..9b653f9
--- /dev/null
+++ b/src/mainwindow.h
@@ -0,0 +1,34 @@
+/*
+ * presentation.h
+ *
+ * Colloquium - A tiny presentation program
+ *
+ * Copyright (c) 2011 Thomas White <taw@bitwiz.org.uk>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+
+extern int open_mainwindow(struct presentation *p);
+
+
+#endif	/* MAINWINDOW_H */
diff --git a/src/presentation.c b/src/presentation.c
new file mode 100644
index 0000000..8a5dca7
--- /dev/null
+++ b/src/presentation.c
@@ -0,0 +1,51 @@
+/*
+ * presentation.c
+ *
+ * Colloquium - A tiny presentation program
+ *
+ * Copyright (c) 2011 Thomas White <taw@bitwiz.org.uk>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+
+#include "presentation.h"
+
+
+struct presentation *new_presentation()
+{
+	struct presentation *new;
+
+	new = malloc(sizeof(struct presentation));
+
+	new->titlebar = strdup("(untitled)");
+	new->filename = NULL;
+
+	new->window = NULL;
+	new->ui = NULL;
+	new->action_group = NULL;
+
+	new->slide_width = 1024.0;
+	new->slide_height = 768.0;
+
+	return new;
+}
diff --git a/src/presentation.h b/src/presentation.h
new file mode 100644
index 0000000..14829c7
--- /dev/null
+++ b/src/presentation.h
@@ -0,0 +1,52 @@
+/*
+ * presentation.h
+ *
+ * Colloquium - A tiny presentation program
+ *
+ * Copyright (c) 2011 Thomas White <taw@bitwiz.org.uk>
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef PRESENTATION_H
+#define PRESENTATION_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+
+#include <gtk/gtk.h>
+
+
+struct presentation
+{
+	char *titlebar;
+	char *filename;
+
+	GtkWidget       *window;
+	GtkWidget	*drawingarea;
+	GtkUIManager	*ui;
+	GtkActionGroup	*action_group;
+
+	double slide_width;
+	double slide_height;
+};
+
+
+extern struct presentation *new_presentation(void);
+
+
+#endif	/* PRESENTATION_H */