diff -r 09dcaeaa216b -r 33b8f428bacb sources/interface.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sources/interface.cpp	Sat Dec 13 07:36:00 2014 +0200
@@ -0,0 +1,213 @@
+/*
+	Copyright 2014 Teemu Piippo
+	All rights reserved.
+
+	Redistribution and use in source and binary forms, with or without
+	modification, are permitted provided that the following conditions
+	are met:
+
+	1. Redistributions of source code must retain the above copyright
+	   notice, this list of conditions and the following disclaimer.
+	2. Redistributions in binary form must reproduce the above copyright
+	   notice, this list of conditions and the following disclaimer in the
+	   documentation and/or other materials provided with the distribution.
+	3. Neither the name of the copyright holder nor the names of its
+	   contributors may be used to endorse or promote products derived from
+	   this software without specific prior written permission.
+
+	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+	"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+	TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+	PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER
+	OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+	EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+	PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+	PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+	LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+	NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+	SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include <string.h>
+#include "interface.h"
+
+static String g_input;
+static int g_cursor = 0;
+static int g_pan = 0;
+static bool g_needRefresh = false;
+
+// -------------------------------------------------------------------------------------------------
+//
+static FUNCTION
+interface_sessions_width() -> int
+{
+	return COLS / 3;
+}
+
+// -------------------------------------------------------------------------------------------------
+//
+static FUNCTION
+interface_render_titlebar() -> void
+{
+	String versionText = format (APPNAME " %1 (%2)",
+		full_version_string(), changeset_date_string());
+
+	if (versionText.length() <= COLS)
+		mvprintw (0, (COLS - versionText.length()) / 2, "%s", versionText.chars());
+}
+
+// -------------------------------------------------------------------------------------------------
+//
+static FUNCTION
+interface_render_log_area() -> void
+{
+
+}
+
+// -------------------------------------------------------------------------------------------------
+//
+static FUNCTION
+interface_render_input() -> void
+{
+	static char prompt[] = "> ";
+	int displaylength = COLS - strlen (prompt) - 1;
+	int y = LINES - 2;
+
+	// Ensure that the cursor is always in view, adjust panning if this is not the case
+	if (g_cursor > g_pan + displaylength)
+		g_pan = g_cursor - displaylength; // cursor went too far right
+	else if (g_cursor < g_pan)
+		g_pan = g_cursor; // cursor went past the pan value to the left
+
+	int start = g_pan;
+	int end = min<int> (g_input.length(), start + displaylength);
+	assert (g_cursor >= start and g_cursor <= end);
+	String displayTextBegin = g_input.mid (start, g_cursor);
+	String displayTextEnd = g_input.mid (g_cursor, end);
+
+	// Clear, but only as much as is necessary. I want to avoid clearing the entire line to save
+	// bandwidth over SSH connections. Perhaps needlessly? I'm paranoid.
+	int renderLength = strlen (prompt) + displayTextBegin.length() + displayTextEnd.length();
+	static int lastRenderLength = 0;
+
+	if (lastRenderLength > renderLength)
+		mvhline (y, renderLength, ' ', lastRenderLength - renderLength);
+
+	lastRenderLength = renderLength;
+
+	// Render the input line, with the part of the input string that's before the cursor written
+	// AFTER the part that comes afterwards. This is to ensure that the cursor is placed at the
+	// position where our cursor is. It looks nice like that. :)
+	mvprintw (y, 0, "%s", prompt);
+	mvprintw (y, strlen (prompt) + displayTextBegin.length(), "%s", displayTextEnd.chars());
+	mvprintw (y, strlen (prompt), "%s", displayTextBegin.chars());
+	g_needRefresh = true;
+}
+
+// -------------------------------------------------------------------------------------------------
+//
+static FUNCTION
+interface_render_statusbar() -> void
+{
+
+}
+
+// -------------------------------------------------------------------------------------------------
+//
+static FUNCTION
+interface_render_full() -> void
+{
+	interface_render_titlebar();
+	interface_render_log_area();
+	interface_render_statusbar();
+	interface_render_input();
+	g_needRefresh = true;
+}
+
+// -------------------------------------------------------------------------------------------------
+//
+FUNCTION
+Interface::initialize() -> void
+{
+	::initscr();
+	::start_color();
+	::raw();
+	::keypad (stdscr, true);
+	::noecho();
+	::refresh();
+	::timeout (0);
+	interface_render_full();
+	refresh();
+	g_needRefresh = false;
+}
+
+// -------------------------------------------------------------------------------------------------
+//
+FUNCTION
+Interface::handle_input() -> void
+{
+	int ch = ::getch();
+
+	if (ch == KEY_F(1))
+	{
+		endwin();
+		exit (EXIT_SUCCESS);
+	}
+	else if (ch >= 0x20 and ch <= 0x7E)
+	{
+		g_input.insert (g_cursor++, char (ch));
+		interface_render_input();
+		refresh();
+	}
+	else if (ch == KEY_LEFT)
+	{
+		if (g_cursor > 0)
+		{
+			g_cursor--;
+			interface_render_input();
+		}
+	}
+	else if (ch == KEY_RIGHT)
+	{
+		if (g_cursor < g_input.length())
+		{
+			g_cursor++;
+			interface_render_input();
+		}
+	}
+	else if (ch == KEY_HOME)
+	{
+		if (g_cursor != 0)
+		{
+			g_cursor = 0;
+			interface_render_input();
+		}
+	}
+	else if (ch == KEY_END)
+	{
+		if (g_cursor != g_input.length())
+		{
+			g_cursor = g_input.length();
+			interface_render_input();
+		}
+	}
+	else if (ch == KEY_BACKSPACE)
+	{
+		if (not g_input.is_empty() and g_cursor > 0)
+		{
+			g_input.remove_at (--g_cursor);
+			interface_render_input();
+		}
+	}
+
+	if (g_needRefresh)
+	{
+		refresh();
+		g_needRefresh = false;
+	}
+}
+
+FUNCTION print_to_console (const String& a) -> void
+{
+	
+}