Move UI stuff to a separate file

4 files changed, 686 insertions, 614 deletions

diff --git a/meson.build b/meson.build
index e24ba6e..d75170b 100644
--- a/meson.build
+++ b/meson.build
@@ -23,6 +23,7 @@ executable('nanolight',
            ['src/nanolight.c',
 	    'src/command.c',
 	    'src/scanout.c',
+	    'src/display.c',
            ],
            dependencies : [gtk_dep, mdep, soup_dep],
            install : true)
diff --git a/src/display.c b/src/display.c
new file mode 100644
index 0000000..72dfb2b
--- /dev/null
+++ b/src/display.c
@@ -0,0 +1,655 @@
+/*
+ * display.c
+ *
+ * Copyright © 2019 Thomas White <taw@bitwiz.me.uk>
+ *
+ * This file is part of NanoLight.
+ *
+ * NanoLight 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/>.
+ *
+ */
+
+
+#include <gtk/gtk.h>
+#include <getopt.h>
+#include <string.h>
+#include <stdlib.h>
+#include <sys/stat.h>
+#include <glib.h>
+#include <glib/gstdio.h>
+
+#include <libintl.h>
+#define _(x) gettext(x)
+
+#include "nanolight.h"
+#include "command.h"
+
+#define OVERALL_BORDER (20.0)
+#define OVERALL_SPLIT (0.5)
+#define FIXTURE_BORDER (5.0)
+
+enum attr_class key_attrs[] = {
+	0,
+	ATT_INTENSITY,  /* F1 */
+	ATT_TILT,       /* F2 */
+	ATT_STROBE,     /* F3 */
+	ATT_CYAN,       /* F4 */
+	ATT_MAGENTA,    /* F5 */
+	ATT_YELLOW,     /* F6 */
+	ATT_GOBO,       /* F7 */
+	ATT_RGOBO,      /* F8 */
+	ATT_PRISM,      /* F9 */
+	ATT_FOCUS,      /* F10 */
+	ATT_ZOOM,       /* F11 */
+	ATT_ZOOM,       /* F12 */
+};
+
+static double get_attr_val(struct fixture *fix, enum attr_class acls)
+{
+	int i;
+	for ( i=0; i<fix->cls->n_attrs; i++ ) {
+		if ( fix->cls->attrs[i].cls == acls ) {
+			int max = 255;
+			if ( fix->cls->attrs[i].props & ATTR_16BIT ) max = 65535;
+			return (double)fix->attr_vals[i] / max;
+		}
+	}
+	return 0.0;
+}
+
+
+static int fixture_selected(struct nanolight *nl, struct fixture *fix)
+{
+	int i;
+	for ( i=0; i<nl->n_sel; i++ ) {
+		if ( &nl->fixtures[nl->selection[i]] == fix ) return 1;
+	}
+	return 0;
+}
+
+
+static int find_attribute(struct fixture *fix, enum attr_class cls, int *n)
+{
+	int j;
+	for ( j=0; j<fix->cls->n_attrs; j++ ) {
+		if ( fix->cls->attrs[j].cls == cls ) {
+			*n = j;
+			return 1;
+		}
+	}
+	return 0;
+}
+
+
+static void draw_fixture(cairo_t *cr, PangoContext *pc, PangoFontDescription *fontdesc,
+                         struct nanolight *nl, struct fixture *fix)
+{
+	PangoLayout *layout;
+	const double w = 40.0;
+	const double h = 3.0/2.0*w;
+	char tmp[32];
+	int n;
+
+	/* Pan/tilt (underneath rectangle) */
+	if ( find_attribute(fix, ATT_PAN, &n) ) {
+		double x = w*fix->attr_vals[n] / 65535;
+		cairo_move_to(cr, x, -1.0);
+		cairo_line_to(cr, x, h+1.0);
+		cairo_set_source_rgb(cr, 1.0, 0.0, 0.0);
+		cairo_set_line_width(cr, 1.0);
+		cairo_stroke(cr);
+	}
+	if ( find_attribute(fix, ATT_TILT, &n) ) {
+		double y = h*(1.0 - (double)fix->attr_vals[n] / 65535);
+		cairo_move_to(cr, -1.0, y);
+		cairo_line_to(cr, w+1.0, y);
+		cairo_set_source_rgb(cr, 1.0, 0.0, 0.0);
+		cairo_set_line_width(cr, 1.0);
+		cairo_stroke(cr);
+	}
+
+	cairo_rectangle(cr, 0.0, 0.0, w, h);
+	if ( fixture_selected(nl, fix) ) {
+		cairo_set_source_rgba(cr, 0.3, 0.3, 0.9, 0.9);
+	} else {
+		cairo_set_source_rgba(cr, 0.3, 0.3, 0.3, 0.9);
+	}
+	cairo_fill_preserve(cr);
+	cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+	cairo_set_line_width(cr, 1.0);
+	cairo_stroke(cr);
+
+	/* Label */
+	layout = pango_layout_new(pc);
+	pango_layout_set_text(layout, fix->label, -1);
+	pango_layout_set_width(layout, (w*PANGO_SCALE)-4.0);
+	pango_layout_set_alignment(layout, PANGO_ALIGN_CENTER);
+	pango_layout_set_font_description(layout, fontdesc);
+	cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+	cairo_move_to(cr, 0.0, 2.0);
+	pango_cairo_show_layout(cr, layout);
+	g_object_unref(layout);
+
+	/* Intensity */
+	snprintf(tmp, 32, "%.0f %%", get_attr_val(fix, ATT_INTENSITY)*100.0);
+	layout = pango_layout_new(pc);
+	pango_layout_set_text(layout, tmp, -1);
+	pango_layout_set_width(layout, (w*PANGO_SCALE)-4.0);
+	pango_layout_set_alignment(layout, PANGO_ALIGN_CENTER);
+	pango_layout_set_font_description(layout, fontdesc);
+	cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+	cairo_move_to(cr, 0.0, 15.0);
+	pango_cairo_show_layout(cr, layout);
+	g_object_unref(layout);
+}
+
+
+static const char *attr_text(enum attr_class cls)
+{
+	switch ( cls ) {
+		case ATT_INTENSITY : return "Intensity";
+		case ATT_PAN : return "(pan)";
+		case ATT_TILT : return "Pan/tilt";
+		case ATT_STROBE : return "Strobe";
+		case ATT_CYAN : return "Cyan";
+		case ATT_MAGENTA : return "Magenta";
+		case ATT_YELLOW : return "Yellow";
+		case ATT_RGOBO : return "RGobo";
+		case ATT_GOBO : return "Gobo";
+		case ATT_PRISM : return "Prism";
+		case ATT_FOCUS : return "Focus";
+		case ATT_ZOOM : return "Zoom";
+	}
+	return "(unknown)";
+}
+
+
+static gboolean draw_sig(GtkWidget *widget, cairo_t *cr, struct nanolight *nl)
+{
+	int w, h;
+	int ch;
+	int i;
+	PangoContext *pc;
+	PangoFontDescription *fontdesc;
+	double x, y;
+	PangoRectangle cursor;
+
+	w = gtk_widget_get_allocated_width(widget);
+	h = gtk_widget_get_allocated_height(widget);
+	pc = gtk_widget_get_pango_context(widget);
+
+	/* Overall background */
+	cairo_set_source_rgb(cr, 0.0, 0.0, 0.2);
+	cairo_paint(cr);
+
+	/* Separator between fixture and cue areas */
+	cairo_move_to(cr, w*OVERALL_SPLIT, OVERALL_BORDER);
+	cairo_line_to(cr, w*OVERALL_SPLIT, h - OVERALL_BORDER);
+	cairo_set_line_width(cr, 3.0);
+	cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+	cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
+	cairo_stroke(cr);
+
+	/* Fixtures */
+	cairo_save(cr);
+	cairo_translate(cr, OVERALL_BORDER, OVERALL_BORDER);
+	x = FIXTURE_BORDER;
+	y = FIXTURE_BORDER;
+	fontdesc = pango_font_description_from_string("Comfortaa Bold 8");
+	for ( i=0; i<nl->n_fixtures; i++ ) {
+		cairo_save(cr);
+		cairo_translate(cr, x, y);
+		cairo_scale(cr, nl->fixture_width/40.0, nl->fixture_width/40.0);
+		draw_fixture(cr, pc, fontdesc, nl, &nl->fixtures[i]);
+		cairo_restore(cr);
+		x += nl->fixture_width + FIXTURE_BORDER*2;
+		if ( x + nl->fixture_width + FIXTURE_BORDER*2 > w*OVERALL_SPLIT ) {
+			x = FIXTURE_BORDER;
+			y += nl->fixture_width*3.0/2.0 + FIXTURE_BORDER*2;
+		}
+	}
+	cairo_restore(cr);
+
+	/* Command line */
+	pango_layout_set_text(nl->layout, nl->cmdline, -1);
+	cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
+	cairo_save(cr);
+	cairo_translate(cr, OVERALL_BORDER, h - OVERALL_BORDER - 20.0);
+	cairo_move_to(cr, 0.0, 0.0);
+	pango_cairo_show_layout(cr, nl->layout);
+	pango_layout_get_cursor_pos(nl->layout, nl->cursor_idx, &cursor, NULL);
+	x = pango_units_to_double(cursor.x);
+	y = pango_units_to_double(cursor.y);
+	ch = pango_units_to_double(cursor.height);
+	cairo_move_to(cr, x, y);
+	cairo_line_to(cr, x, y+ch);
+	cairo_set_line_width(cr, 3.0);
+	cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
+	cairo_set_source_rgb(cr, 0.8, 0.4, 0.4);
+	cairo_stroke(cr);
+	cairo_restore(cr);
+
+	/* Selected attribute indicator */
+	if ( nl->n_sel > 0 ) {
+		pango_layout_set_text(nl->sa_layout, attr_text(nl->sel_attr), -1);
+		cairo_set_source_rgb(cr, 1.0, 0.0, 0.0);
+		pango_layout_set_width(nl->sa_layout, pango_units_from_double(200.0));
+		cairo_move_to(cr, w - 200.0 - OVERALL_BORDER, h-OVERALL_BORDER-20.0);
+		pango_cairo_show_layout(cr, nl->sa_layout);
+	}
+
+	return FALSE;
+}
+
+
+static void redraw(struct nanolight *nl)
+{
+	gint w, h;
+	w = gtk_widget_get_allocated_width(GTK_WIDGET(nl->da));
+	h = gtk_widget_get_allocated_height(GTK_WIDGET(nl->da));
+	gtk_widget_queue_draw_area(GTK_WIDGET(nl->da), 0, 0, w, h);
+}
+
+
+static gboolean im_commit_sig(GtkIMContext *im, gchar *str, struct nanolight *nl)
+{
+	size_t cmd_len = strlen(nl->cmdline);
+	if ( cmd_len+strlen(str) > 1023 ) return FALSE;
+	strcat(nl->cmdline, str);
+	nl->cursor_idx += strlen(str);
+	redraw(nl);
+	return FALSE;
+}
+
+
+static size_t delete_char(char *str)
+{
+	char *last;
+	size_t len;
+	if ( str[0] == '\0' ) return 0;
+	last = g_utf8_find_prev_char(str, str+strlen(str));
+	len = strlen(last);
+	last[0] = '\0';
+	return len;
+}
+
+
+static void cap_value(struct fixture *fix, int n, signed int *v)
+{
+	if ( *v < 0 ) *v = 0;
+	if ( fix->cls->attrs[n].props & ATTR_16BIT ) {
+		if ( *v > 65535 ) *v = 65535;
+	} else {
+		if ( *v > 255 ) *v = 255;
+	}
+}
+
+
+static void set_start_attrs(struct nanolight *nl, enum attr_class cls)
+{
+	int i;
+	for ( i=0; i<nl->n_sel; i++ ) {
+		int n;
+		struct fixture *fix = &nl->fixtures[nl->selection[i]];
+		if ( find_attribute(fix, cls, &n) ) {
+			fix->attr_vals_start[n] = fix->attr_vals[n];
+		}
+	}
+
+	/* If altering tilt, also change pan */
+	if ( cls == ATT_TILT ) {
+		set_start_attrs(nl, ATT_PAN);
+	}
+}
+
+
+static gboolean button_press_sig(GtkWidget *da, GdkEventButton *event, struct nanolight *nl)
+{
+#if 0
+	GdkSeat *seat;
+	GdkWindow *win = gtk_widget_get_window(nl->da);
+
+	seat = gdk_display_get_default_seat(gdk_display_get_default());
+	nl->pointer = gdk_seat_get_pointer(seat);
+#endif
+
+	set_start_attrs(nl, nl->sel_attr);
+
+	nl->x_orig = event->x;
+	nl->y_orig = event->y;
+	nl->dragging = 1;
+
+	return FALSE;
+}
+
+
+static gboolean button_release_sig(GtkWidget *da, GdkEventButton *event, struct nanolight *nl)
+{
+	nl->dragging = 0;
+	return FALSE;
+}
+
+
+static double maybe_fine(struct fixture *fix, int n, double inc, int shift)
+{
+	if ( !(fix->cls->attrs[n].props & ATTR_16BIT) ) return inc;
+	if ( shift ) return inc;
+	return inc * 100.0;
+}
+
+
+static gboolean motion_sig(GtkWidget *da, GdkEventMotion *event, struct nanolight *nl)
+{
+	int i;
+	double x_inc, y_inc;
+	int shift;
+
+	if ( !nl->dragging ) return FALSE;
+
+	x_inc = (event->x - nl->x_orig)/3;
+	y_inc = (nl->y_orig - event->y)/3;  /* Mouse up means increase */
+
+	shift = event->state & GDK_SHIFT_MASK;
+	if ( shift != nl->fine ) {
+		nl->fine = shift;
+		set_start_attrs(nl, nl->sel_attr);
+		nl->x_orig = event->x;
+		nl->y_orig = event->y;
+		return FALSE;
+	}
+
+	if ( nl->sel_attr == ATT_TILT ) {
+		for ( i=0; i<nl->n_sel; i++ ) {
+			int n;
+			struct fixture *fix = &nl->fixtures[nl->selection[i]];
+			if ( find_attribute(fix, ATT_PAN, &n) ) {
+				double inc = maybe_fine(fix, n, x_inc,
+				                        event->state & GDK_SHIFT_MASK);
+				signed int nv = fix->attr_vals_start[n] + inc;
+				cap_value(fix, n, &nv);
+				fix->attr_vals[n] = nv;
+			}
+			if ( find_attribute(fix, ATT_TILT, &n) ) {
+				double inc = maybe_fine(fix, n, y_inc,
+				                        event->state & GDK_SHIFT_MASK);
+				signed int nv = fix->attr_vals_start[n] + inc;
+				cap_value(fix, n, &nv);
+				fix->attr_vals[n] = nv;
+			}
+		}
+	} else {
+		for ( i=0; i<nl->n_sel; i++ ) {
+			int n;
+			struct fixture *fix = &nl->fixtures[nl->selection[i]];
+			if ( find_attribute(fix, nl->sel_attr, &n) ) {
+				double inc = maybe_fine(fix, n, y_inc,
+				                        event->state & GDK_SHIFT_MASK);
+				signed int nv = fix->attr_vals_start[n] + inc;
+				cap_value(fix, n, &nv);
+				if ( !(fix->cls->attrs[n].props & ATTR_STOP) ) {
+					fix->attr_vals[n] = nv;
+				} else {
+					printf("Can't change step attr with mouse\n");
+				}
+			}
+		}
+	}
+
+	redraw(nl);
+	return FALSE;
+}
+
+
+static void change_stop_attr(struct nanolight *nl, signed int inc)
+{
+	int i;
+	for ( i=0; i<nl->n_sel; i++ ) {
+
+		struct fixture *fix = &nl->fixtures[nl->selection[i]];
+		int n;
+
+		if ( find_attribute(fix, nl->sel_attr, &n) ) {
+			signed int nv;
+			if ( !(fix->cls->attrs[n].props & ATTR_STOP) ) {
+				printf("Can't change continuous attr with keys\n");
+				continue;
+			}
+			nv = fix->attr_vals[n] + inc;
+			if ( (nv>=0) && (nv<fix->cls->attrs[n].n_stops) ) {
+				fix->attr_vals[n] = nv;
+			}
+		}
+
+	}
+	redraw(nl);
+}
+
+static void home_value(struct nanolight *nl)
+{
+	int i;
+	for ( i=0; i<nl->n_sel; i++ ) {
+
+		struct fixture *fix = &nl->fixtures[nl->selection[i]];
+		int n;
+
+		if ( nl->sel_attr == ATT_TILT ) {
+			if ( find_attribute(fix, ATT_PAN, &n) ) {
+				fix->attr_vals[n] = fix->cls->attrs[n].home;
+			}
+			if ( find_attribute(fix, ATT_TILT, &n) ) {
+				fix->attr_vals[n] = fix->cls->attrs[n].home;
+			}
+			nl->dragging = 0;
+		} else {
+			if ( find_attribute(fix, nl->sel_attr, &n) ) {
+				fix->attr_vals[n] = fix->cls->attrs[n].home;
+			}
+		}
+
+	}
+	redraw(nl);
+}
+
+
+static void execute_command(struct nanolight *nl)
+{
+	if ( command_run(nl->cmdline, nl) == 0 ) {
+		nl->cmdline[0] = '\0';
+		nl->cursor_idx = 0;
+	}
+	redraw(nl);
+}
+
+
+static gboolean key_press_sig(GtkWidget *da, GdkEventKey *event, struct nanolight *nl)
+{
+	gboolean r;
+	int claim = 1;
+
+	switch ( event->keyval ) {
+
+		case GDK_KEY_Left :
+		break;
+
+		case GDK_KEY_Right :
+		break;
+
+		case GDK_KEY_Up :
+		change_stop_attr(nl, +1);
+		break;
+
+		case GDK_KEY_Down :
+		change_stop_attr(nl, -1);
+		break;
+
+		case GDK_KEY_Return :
+		execute_command(nl);
+		break;
+
+		case GDK_KEY_Escape :
+		nl->cmdline[0] = '\0';
+		nl->cursor_idx = 0;
+		nl->n_sel = 0;
+		nl->dragging = 0;
+		break;
+
+		case GDK_KEY_BackSpace :
+		nl->cursor_idx -= delete_char(nl->cmdline);
+		break;
+
+		case GDK_KEY_KP_Enter :
+		printf("Go!\n");
+		break;
+
+		case GDK_KEY_KP_Add :
+		printf("Stop/back!\n");
+		break;
+
+		case GDK_KEY_Home :
+		home_value(nl);
+		break;
+
+		case GDK_KEY_F1 :
+		nl->sel_attr = key_attrs[1];
+		nl->dragging = 0;
+		break;
+
+		case GDK_KEY_F2 :
+		nl->sel_attr = key_attrs[2];
+		nl->dragging = 0;
+		break;
+
+		case GDK_KEY_F3 :
+		nl->sel_attr = key_attrs[3];
+		nl->dragging = 0;
+		break;
+
+		case GDK_KEY_F4 :
+		nl->sel_attr = key_attrs[4];
+		nl->dragging = 0;
+		break;
+
+		case GDK_KEY_F5 :
+		nl->sel_attr = key_attrs[5];
+		nl->dragging = 0;
+		break;
+
+		case GDK_KEY_F6 :
+		nl->sel_attr = key_attrs[6];
+		nl->dragging = 0;
+		break;
+
+		case GDK_KEY_F7 :
+		nl->sel_attr = key_attrs[7];
+		nl->dragging = 0;
+		break;
+
+		case GDK_KEY_F8 :
+		nl->sel_attr = key_attrs[8];
+		nl->dragging = 0;
+		break;
+
+		case GDK_KEY_F9 :
+		nl->sel_attr = key_attrs[9];
+		nl->dragging = 0;
+		break;
+
+		case GDK_KEY_F10 :
+		nl->sel_attr = key_attrs[10];
+		nl->dragging = 0;
+		break;
+
+		case GDK_KEY_F11 :
+		nl->sel_attr = key_attrs[11];
+		nl->dragging = 0;
+		break;
+
+		case GDK_KEY_F12 :
+		nl->sel_attr = key_attrs[12];
+		nl->dragging = 0;
+		break;
+
+		default :
+		claim = 0;
+		break;
+
+	}
+
+	if ( !claim ) {
+		/* Throw the event to the IM context and let it sort things out */
+		r = gtk_im_context_filter_keypress(GTK_IM_CONTEXT(nl->im_context), event);
+		if ( r ) claim = 1;
+	} else {
+		redraw(nl);
+	}
+
+	if ( claim ) return TRUE;
+	return FALSE;
+}
+
+
+static gint realise_sig(GtkWidget *da, struct nanolight *nl)
+{
+	GdkWindow *win = gtk_widget_get_window(da);
+	PangoContext *pc;
+	PangoFontDescription *fontdesc;
+
+	/* Keyboard and input method stuff */
+	nl->im_context = gtk_im_multicontext_new();
+	gtk_im_context_set_client_window(GTK_IM_CONTEXT(nl->im_context), win);
+	gdk_window_set_accept_focus(win, TRUE);
+	g_signal_connect(G_OBJECT(nl->im_context), "commit", G_CALLBACK(im_commit_sig), nl);
+	g_signal_connect(G_OBJECT(da), "key-press-event", G_CALLBACK(key_press_sig), nl);
+	g_signal_connect(G_OBJECT(da), "button-press-event", G_CALLBACK(button_press_sig), nl);
+	g_signal_connect(G_OBJECT(da), "button-release-event", G_CALLBACK(button_release_sig), nl);
+	g_signal_connect(G_OBJECT(da), "motion-notify-event", G_CALLBACK(motion_sig), nl);
+
+	pc = gtk_widget_get_pango_context(da);
+	fontdesc = pango_font_description_from_string("Comfortaa Bold 16");
+
+	nl->layout = pango_layout_new(pc);
+	pango_layout_set_alignment(nl->layout, PANGO_ALIGN_LEFT);
+	pango_layout_set_font_description(nl->layout, fontdesc);
+
+	nl->sa_layout = pango_layout_new(pc);
+	pango_layout_set_alignment(nl->sa_layout, PANGO_ALIGN_RIGHT);
+	pango_layout_set_font_description(nl->sa_layout, fontdesc);
+
+	return FALSE;
+}
+
+
+void create_main_window(struct nanolight *nl)
+{
+	GtkWidget *mainwindow;
+	GtkWidget *da;
+
+	/* Create main window */
+	mainwindow = gtk_window_new(GTK_WINDOW_TOPLEVEL);
+	gtk_window_fullscreen(GTK_WINDOW(mainwindow));
+	g_signal_connect_swapped(G_OBJECT(mainwindow), "destroy", gtk_main_quit, NULL);
+
+	da = gtk_drawing_area_new();
+	nl->da = da;
+	gtk_container_add(GTK_CONTAINER(mainwindow), GTK_WIDGET(da));
+	gtk_widget_set_can_focus(GTK_WIDGET(da), TRUE);
+	gtk_widget_add_events(da, GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK
+	                        | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
+	                        | GDK_BUTTON_MOTION_MASK);
+	g_signal_connect(G_OBJECT(da), "draw", G_CALLBACK(draw_sig), nl);
+	g_signal_connect(G_OBJECT(da), "realize", G_CALLBACK(realise_sig), nl);
+
+	gtk_widget_grab_focus(GTK_WIDGET(da));
+	gtk_widget_show_all(mainwindow);
+}
diff --git a/src/display.h b/src/display.h
new file mode 100644
index 0000000..eb4cb3e
--- /dev/null
+++ b/src/display.h
@@ -0,0 +1,28 @@
+/*
+ * scanout.h
+ *
+ * Copyright © 2019 Thomas White <taw@bitwiz.me.uk>
+ *
+ * This file is part of NanoLight.
+ *
+ * NanoLight 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 DISPLAY_H
+#define DISPLAY_H
+
+extern void create_main_window(struct nanolight *nl);
+
+#endif	/* DISPLAY_H */
diff --git a/src/nanolight.c b/src/nanolight.c
index 80bf874..aea925c 100644
--- a/src/nanolight.c
+++ b/src/nanolight.c
@@ -33,8 +33,8 @@
 #define _(x) gettext(x)
 
 #include "nanolight.h"
-#include "command.h"
 #include "scanout.h"
+#include "display.h"
 
 static void show_help(const char *s)
 {
@@ -43,223 +43,6 @@ static void show_help(const char *s)
 	         "  -h, --help    Display this help message.\n"));
 }
 
-#define OVERALL_BORDER (20.0)
-#define OVERALL_SPLIT (0.5)
-#define FIXTURE_BORDER (5.0)
-
-enum attr_class key_attrs[] = {
-	0,
-	ATT_INTENSITY,  /* F1 */
-	ATT_TILT,       /* F2 */
-	ATT_STROBE,     /* F3 */
-	ATT_CYAN,       /* F4 */
-	ATT_MAGENTA,    /* F5 */
-	ATT_YELLOW,     /* F6 */
-	ATT_GOBO,       /* F7 */
-	ATT_RGOBO,      /* F8 */
-	ATT_PRISM,      /* F9 */
-	ATT_FOCUS,      /* F10 */
-	ATT_ZOOM,       /* F11 */
-	ATT_ZOOM,       /* F12 */
-};
-
-static double get_attr_val(struct fixture *fix, enum attr_class acls)
-{
-	int i;
-	for ( i=0; i<fix->cls->n_attrs; i++ ) {
-		if ( fix->cls->attrs[i].cls == acls ) {
-			int max = 255;
-			if ( fix->cls->attrs[i].props & ATTR_16BIT ) max = 65535;
-			return (double)fix->attr_vals[i] / max;
-		}
-	}
-	return 0.0;
-}
-
-
-static int fixture_selected(struct nanolight *nl, struct fixture *fix)
-{
-	int i;
-	for ( i=0; i<nl->n_sel; i++ ) {
-		if ( &nl->fixtures[nl->selection[i]] == fix ) return 1;
-	}
-	return 0;
-}
-
-
-static int find_attribute(struct fixture *fix, enum attr_class cls, int *n)
-{
-	int j;
-	for ( j=0; j<fix->cls->n_attrs; j++ ) {
-		if ( fix->cls->attrs[j].cls == cls ) {
-			*n = j;
-			return 1;
-		}
-	}
-	return 0;
-}
-
-
-static void draw_fixture(cairo_t *cr, PangoContext *pc, PangoFontDescription *fontdesc,
-                         struct nanolight *nl, struct fixture *fix)
-{
-	PangoLayout *layout;
-	const double w = 40.0;
-	const double h = 3.0/2.0*w;
-	char tmp[32];
-	int n;
-
-	/* Pan/tilt (underneath rectangle) */
-	if ( find_attribute(fix, ATT_PAN, &n) ) {
-		double x = w*fix->attr_vals[n] / 65535;
-		cairo_move_to(cr, x, -1.0);
-		cairo_line_to(cr, x, h+1.0);
-		cairo_set_source_rgb(cr, 1.0, 0.0, 0.0);
-		cairo_set_line_width(cr, 1.0);
-		cairo_stroke(cr);
-	}
-	if ( find_attribute(fix, ATT_TILT, &n) ) {
-		double y = h*(1.0 - (double)fix->attr_vals[n] / 65535);
-		cairo_move_to(cr, -1.0, y);
-		cairo_line_to(cr, w+1.0, y);
-		cairo_set_source_rgb(cr, 1.0, 0.0, 0.0);
-		cairo_set_line_width(cr, 1.0);
-		cairo_stroke(cr);
-	}
-
-	cairo_rectangle(cr, 0.0, 0.0, w, h);
-	if ( fixture_selected(nl, fix) ) {
-		cairo_set_source_rgba(cr, 0.3, 0.3, 0.9, 0.9);
-	} else {
-		cairo_set_source_rgba(cr, 0.3, 0.3, 0.3, 0.9);
-	}
-	cairo_fill_preserve(cr);
-	cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
-	cairo_set_line_width(cr, 1.0);
-	cairo_stroke(cr);
-
-	/* Label */
-	layout = pango_layout_new(pc);
-	pango_layout_set_text(layout, fix->label, -1);
-	pango_layout_set_width(layout, (w*PANGO_SCALE)-4.0);
-	pango_layout_set_alignment(layout, PANGO_ALIGN_CENTER);
-	pango_layout_set_font_description(layout, fontdesc);
-	cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
-	cairo_move_to(cr, 0.0, 2.0);
-	pango_cairo_show_layout(cr, layout);
-	g_object_unref(layout);
-
-	/* Intensity */
-	snprintf(tmp, 32, "%.0f %%", get_attr_val(fix, ATT_INTENSITY)*100.0);
-	layout = pango_layout_new(pc);
-	pango_layout_set_text(layout, tmp, -1);
-	pango_layout_set_width(layout, (w*PANGO_SCALE)-4.0);
-	pango_layout_set_alignment(layout, PANGO_ALIGN_CENTER);
-	pango_layout_set_font_description(layout, fontdesc);
-	cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
-	cairo_move_to(cr, 0.0, 15.0);
-	pango_cairo_show_layout(cr, layout);
-	g_object_unref(layout);
-}
-
-
-static const char *attr_text(enum attr_class cls)
-{
-	switch ( cls ) {
-		case ATT_INTENSITY : return "Intensity";
-		case ATT_PAN : return "(pan)";
-		case ATT_TILT : return "Pan/tilt";
-		case ATT_STROBE : return "Strobe";
-		case ATT_CYAN : return "Cyan";
-		case ATT_MAGENTA : return "Magenta";
-		case ATT_YELLOW : return "Yellow";
-		case ATT_RGOBO : return "RGobo";
-		case ATT_GOBO : return "Gobo";
-		case ATT_PRISM : return "Prism";
-		case ATT_FOCUS : return "Focus";
-		case ATT_ZOOM : return "Zoom";
-	}
-	return "(unknown)";
-}
-
-
-static gboolean draw_sig(GtkWidget *widget, cairo_t *cr, struct nanolight *nl)
-{
-	int w, h;
-	int ch;
-	int i;
-	PangoContext *pc;
-	PangoFontDescription *fontdesc;
-	double x, y;
-	PangoRectangle cursor;
-
-	w = gtk_widget_get_allocated_width(widget);
-	h = gtk_widget_get_allocated_height(widget);
-	pc = gtk_widget_get_pango_context(widget);
-
-	/* Overall background */
-	cairo_set_source_rgb(cr, 0.0, 0.0, 0.2);
-	cairo_paint(cr);
-
-	/* Separator between fixture and cue areas */
-	cairo_move_to(cr, w*OVERALL_SPLIT, OVERALL_BORDER);
-	cairo_line_to(cr, w*OVERALL_SPLIT, h - OVERALL_BORDER);
-	cairo_set_line_width(cr, 3.0);
-	cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
-	cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
-	cairo_stroke(cr);
-
-	/* Fixtures */
-	cairo_save(cr);
-	cairo_translate(cr, OVERALL_BORDER, OVERALL_BORDER);
-	x = FIXTURE_BORDER;
-	y = FIXTURE_BORDER;
-	fontdesc = pango_font_description_from_string("Comfortaa Bold 8");
-	for ( i=0; i<nl->n_fixtures; i++ ) {
-		cairo_save(cr);
-		cairo_translate(cr, x, y);
-		cairo_scale(cr, nl->fixture_width/40.0, nl->fixture_width/40.0);
-		draw_fixture(cr, pc, fontdesc, nl, &nl->fixtures[i]);
-		cairo_restore(cr);
-		x += nl->fixture_width + FIXTURE_BORDER*2;
-		if ( x + nl->fixture_width + FIXTURE_BORDER*2 > w*OVERALL_SPLIT ) {
-			x = FIXTURE_BORDER;
-			y += nl->fixture_width*3.0/2.0 + FIXTURE_BORDER*2;
-		}
-	}
-	cairo_restore(cr);
-
-	/* Command line */
-	pango_layout_set_text(nl->layout, nl->cmdline, -1);
-	cairo_set_source_rgb(cr, 1.0, 1.0, 1.0);
-	cairo_save(cr);
-	cairo_translate(cr, OVERALL_BORDER, h - OVERALL_BORDER - 20.0);
-	cairo_move_to(cr, 0.0, 0.0);
-	pango_cairo_show_layout(cr, nl->layout);
-	pango_layout_get_cursor_pos(nl->layout, nl->cursor_idx, &cursor, NULL);
-	x = pango_units_to_double(cursor.x);
-	y = pango_units_to_double(cursor.y);
-	ch = pango_units_to_double(cursor.height);
-	cairo_move_to(cr, x, y);
-	cairo_line_to(cr, x, y+ch);
-	cairo_set_line_width(cr, 3.0);
-	cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
-	cairo_set_source_rgb(cr, 0.8, 0.4, 0.4);
-	cairo_stroke(cr);
-	cairo_restore(cr);
-
-	/* Selected attribute indicator */
-	if ( nl->n_sel > 0 ) {
-		pango_layout_set_text(nl->sa_layout, attr_text(nl->sel_attr), -1);
-		cairo_set_source_rgb(cr, 1.0, 0.0, 0.0);
-		pango_layout_set_width(nl->sa_layout, pango_units_from_double(200.0));
-		cairo_move_to(cr, w - 200.0 - OVERALL_BORDER, h-OVERALL_BORDER-20.0);
-		pango_cairo_show_layout(cr, nl->sa_layout);
-	}
-
-	return FALSE;
-}
-
 
 static struct fixture *create_fixture(struct nanolight *nl, struct fixture_class *cls,
                                       const char *label, int universe, int base_addr)
@@ -297,383 +80,6 @@ static struct fixture *create_fixture(struct nanolight *nl, struct fixture_class
 }
 
 
-static void redraw(struct nanolight *nl)
-{
-	gint w, h;
-	w = gtk_widget_get_allocated_width(GTK_WIDGET(nl->da));
-	h = gtk_widget_get_allocated_height(GTK_WIDGET(nl->da));
-	gtk_widget_queue_draw_area(GTK_WIDGET(nl->da), 0, 0, w, h);
-}
-
-
-static void execute_command(struct nanolight *nl)
-{
-	if ( command_run(nl->cmdline, nl) == 0 ) {
-		nl->cmdline[0] = '\0';
-		nl->cursor_idx = 0;
-	}
-	redraw(nl);
-}
-
-
-static gboolean im_commit_sig(GtkIMContext *im, gchar *str, struct nanolight *nl)
-{
-	size_t cmd_len = strlen(nl->cmdline);
-	if ( cmd_len+strlen(str) > 1023 ) return FALSE;
-	strcat(nl->cmdline, str);
-	nl->cursor_idx += strlen(str);
-	redraw(nl);
-	return FALSE;
-}
-
-
-static size_t delete_char(char *str)
-{
-	char *last;
-	size_t len;
-	if ( str[0] == '\0' ) return 0;
-	last = g_utf8_find_prev_char(str, str+strlen(str));
-	len = strlen(last);
-	last[0] = '\0';
-	return len;
-}
-
-
-static void cap_value(struct fixture *fix, int n, signed int *v)
-{
-	if ( *v < 0 ) *v = 0;
-	if ( fix->cls->attrs[n].props & ATTR_16BIT ) {
-		if ( *v > 65535 ) *v = 65535;
-	} else {
-		if ( *v > 255 ) *v = 255;
-	}
-}
-
-
-static void set_start_attrs(struct nanolight *nl, enum attr_class cls)
-{
-	int i;
-	for ( i=0; i<nl->n_sel; i++ ) {
-		int n;
-		struct fixture *fix = &nl->fixtures[nl->selection[i]];
-		if ( find_attribute(fix, cls, &n) ) {
-			fix->attr_vals_start[n] = fix->attr_vals[n];
-		}
-	}
-
-	/* If altering tilt, also change pan */
-	if ( cls == ATT_TILT ) {
-		set_start_attrs(nl, ATT_PAN);
-	}
-}
-
-
-static gboolean button_press_sig(GtkWidget *da, GdkEventButton *event, struct nanolight *nl)
-{
-#if 0
-	GdkSeat *seat;
-	GdkWindow *win = gtk_widget_get_window(nl->da);
-
-	seat = gdk_display_get_default_seat(gdk_display_get_default());
-	nl->pointer = gdk_seat_get_pointer(seat);
-#endif
-
-	set_start_attrs(nl, nl->sel_attr);
-
-	nl->x_orig = event->x;
-	nl->y_orig = event->y;
-	nl->dragging = 1;
-
-	return FALSE;
-}
-
-
-static gboolean button_release_sig(GtkWidget *da, GdkEventButton *event, struct nanolight *nl)
-{
-	nl->dragging = 0;
-	return FALSE;
-}
-
-
-static double maybe_fine(struct fixture *fix, int n, double inc, int shift)
-{
-	if ( !(fix->cls->attrs[n].props & ATTR_16BIT) ) return inc;
-	if ( shift ) return inc;
-	return inc * 100.0;
-}
-
-
-static gboolean motion_sig(GtkWidget *da, GdkEventMotion *event, struct nanolight *nl)
-{
-	int i;
-	double x_inc, y_inc;
-	int shift;
-
-	if ( !nl->dragging ) return FALSE;
-
-	x_inc = (event->x - nl->x_orig)/3;
-	y_inc = (nl->y_orig - event->y)/3;  /* Mouse up means increase */
-
-	shift = event->state & GDK_SHIFT_MASK;
-	if ( shift != nl->fine ) {
-		nl->fine = shift;
-		set_start_attrs(nl, nl->sel_attr);
-		nl->x_orig = event->x;
-		nl->y_orig = event->y;
-		return FALSE;
-	}
-
-	if ( nl->sel_attr == ATT_TILT ) {
-		for ( i=0; i<nl->n_sel; i++ ) {
-			int n;
-			struct fixture *fix = &nl->fixtures[nl->selection[i]];
-			if ( find_attribute(fix, ATT_PAN, &n) ) {
-				double inc = maybe_fine(fix, n, x_inc,
-				                        event->state & GDK_SHIFT_MASK);
-				signed int nv = fix->attr_vals_start[n] + inc;
-				cap_value(fix, n, &nv);
-				fix->attr_vals[n] = nv;
-			}
-			if ( find_attribute(fix, ATT_TILT, &n) ) {
-				double inc = maybe_fine(fix, n, y_inc,
-				                        event->state & GDK_SHIFT_MASK);
-				signed int nv = fix->attr_vals_start[n] + inc;
-				cap_value(fix, n, &nv);
-				fix->attr_vals[n] = nv;
-			}
-		}
-	} else {
-		for ( i=0; i<nl->n_sel; i++ ) {
-			int n;
-			struct fixture *fix = &nl->fixtures[nl->selection[i]];
-			if ( find_attribute(fix, nl->sel_attr, &n) ) {
-				double inc = maybe_fine(fix, n, y_inc,
-				                        event->state & GDK_SHIFT_MASK);
-				signed int nv = fix->attr_vals_start[n] + inc;
-				cap_value(fix, n, &nv);
-				if ( !(fix->cls->attrs[n].props & ATTR_STOP) ) {
-					fix->attr_vals[n] = nv;
-				} else {
-					printf("Can't change step attr with mouse\n");
-				}
-			}
-		}
-	}
-
-	redraw(nl);
-	return FALSE;
-}
-
-
-static void change_stop_attr(struct nanolight *nl, signed int inc)
-{
-	int i;
-	for ( i=0; i<nl->n_sel; i++ ) {
-
-		struct fixture *fix = &nl->fixtures[nl->selection[i]];
-		int n;
-
-		if ( find_attribute(fix, nl->sel_attr, &n) ) {
-			signed int nv;
-			if ( !(fix->cls->attrs[n].props & ATTR_STOP) ) {
-				printf("Can't change continuous attr with keys\n");
-				continue;
-			}
-			nv = fix->attr_vals[n] + inc;
-			if ( (nv>=0) && (nv<fix->cls->attrs[n].n_stops) ) {
-				fix->attr_vals[n] = nv;
-			}
-		}
-
-	}
-	redraw(nl);
-}
-
-static void home_value(struct nanolight *nl)
-{
-	int i;
-	for ( i=0; i<nl->n_sel; i++ ) {
-
-		struct fixture *fix = &nl->fixtures[nl->selection[i]];
-		int n;
-
-		if ( nl->sel_attr == ATT_TILT ) {
-			if ( find_attribute(fix, ATT_PAN, &n) ) {
-				fix->attr_vals[n] = fix->cls->attrs[n].home;
-			}
-			if ( find_attribute(fix, ATT_TILT, &n) ) {
-				fix->attr_vals[n] = fix->cls->attrs[n].home;
-			}
-			nl->dragging = 0;
-		} else {
-			if ( find_attribute(fix, nl->sel_attr, &n) ) {
-				fix->attr_vals[n] = fix->cls->attrs[n].home;
-			}
-		}
-
-	}
-	redraw(nl);
-}
-
-
-static gboolean key_press_sig(GtkWidget *da, GdkEventKey *event, struct nanolight *nl)
-{
-	gboolean r;
-	int claim = 1;
-
-	switch ( event->keyval ) {
-
-		case GDK_KEY_Left :
-		break;
-
-		case GDK_KEY_Right :
-		break;
-
-		case GDK_KEY_Up :
-		change_stop_attr(nl, +1);
-		break;
-
-		case GDK_KEY_Down :
-		change_stop_attr(nl, -1);
-		break;
-
-		case GDK_KEY_Return :
-		execute_command(nl);
-		break;
-
-		case GDK_KEY_Escape :
-		nl->cmdline[0] = '\0';
-		nl->cursor_idx = 0;
-		nl->n_sel = 0;
-		nl->dragging = 0;
-		break;
-
-		case GDK_KEY_BackSpace :
-		nl->cursor_idx -= delete_char(nl->cmdline);
-		break;
-
-		case GDK_KEY_KP_Enter :
-		printf("Go!\n");
-		break;
-
-		case GDK_KEY_KP_Add :
-		printf("Stop/back!\n");
-		break;
-
-		case GDK_KEY_Home :
-		home_value(nl);
-		break;
-
-		case GDK_KEY_F1 :
-		nl->sel_attr = key_attrs[1];
-		nl->dragging = 0;
-		break;
-
-		case GDK_KEY_F2 :
-		nl->sel_attr = key_attrs[2];
-		nl->dragging = 0;
-		break;
-
-		case GDK_KEY_F3 :
-		nl->sel_attr = key_attrs[3];
-		nl->dragging = 0;
-		break;
-
-		case GDK_KEY_F4 :
-		nl->sel_attr = key_attrs[4];
-		nl->dragging = 0;
-		break;
-
-		case GDK_KEY_F5 :
-		nl->sel_attr = key_attrs[5];
-		nl->dragging = 0;
-		break;
-
-		case GDK_KEY_F6 :
-		nl->sel_attr = key_attrs[6];
-		nl->dragging = 0;
-		break;
-
-		case GDK_KEY_F7 :
-		nl->sel_attr = key_attrs[7];
-		nl->dragging = 0;
-		break;
-
-		case GDK_KEY_F8 :
-		nl->sel_attr = key_attrs[8];
-		nl->dragging = 0;
-		break;
-
-		case GDK_KEY_F9 :
-		nl->sel_attr = key_attrs[9];
-		nl->dragging = 0;
-		break;
-
-		case GDK_KEY_F10 :
-		nl->sel_attr = key_attrs[10];
-		nl->dragging = 0;
-		break;
-
-		case GDK_KEY_F11 :
-		nl->sel_attr = key_attrs[11];
-		nl->dragging = 0;
-		break;
-
-		case GDK_KEY_F12 :
-		nl->sel_attr = key_attrs[12];
-		nl->dragging = 0;
-		break;
-
-		default :
-		claim = 0;
-		break;
-
-	}
-
-	if ( !claim ) {
-		/* Throw the event to the IM context and let it sort things out */
-		r = gtk_im_context_filter_keypress(GTK_IM_CONTEXT(nl->im_context), event);
-		if ( r ) claim = 1;
-	} else {
-		redraw(nl);
-	}
-
-	if ( claim ) return TRUE;
-	return FALSE;
-}
-
-
-static gint realise_sig(GtkWidget *da, struct nanolight *nl)
-{
-	GdkWindow *win = gtk_widget_get_window(da);
-	PangoContext *pc;
-	PangoFontDescription *fontdesc;
-
-	/* Keyboard and input method stuff */
-	nl->im_context = gtk_im_multicontext_new();
-	gtk_im_context_set_client_window(GTK_IM_CONTEXT(nl->im_context), win);
-	gdk_window_set_accept_focus(win, TRUE);
-	g_signal_connect(G_OBJECT(nl->im_context), "commit", G_CALLBACK(im_commit_sig), nl);
-	g_signal_connect(G_OBJECT(da), "key-press-event", G_CALLBACK(key_press_sig), nl);
-	g_signal_connect(G_OBJECT(da), "button-press-event", G_CALLBACK(button_press_sig), nl);
-	g_signal_connect(G_OBJECT(da), "button-release-event", G_CALLBACK(button_release_sig), nl);
-	g_signal_connect(G_OBJECT(da), "motion-notify-event", G_CALLBACK(motion_sig), nl);
-
-	pc = gtk_widget_get_pango_context(da);
-	fontdesc = pango_font_description_from_string("Comfortaa Bold 16");
-
-	nl->layout = pango_layout_new(pc);
-	pango_layout_set_alignment(nl->layout, PANGO_ALIGN_LEFT);
-	pango_layout_set_font_description(nl->layout, fontdesc);
-
-	nl->sa_layout = pango_layout_new(pc);
-	pango_layout_set_alignment(nl->sa_layout, PANGO_ALIGN_RIGHT);
-	pango_layout_set_font_description(nl->sa_layout, fontdesc);
-
-	return FALSE;
-}
-
-
 static gboolean scanout_cb(gpointer data)
 {
 	scanout_all((struct nanolight *)data);
@@ -687,8 +93,6 @@ int main(int argc, char *argv[])
 	struct fixture_class cls;
 	struct attribute attrs[128];
 	int c;
-	GtkWidget *mainwindow;
-	GtkWidget *da;
 
 	gtk_init(&argc, &argv);
 
@@ -813,23 +217,7 @@ int main(int argc, char *argv[])
 	/* Set up output */
 	g_timeout_add(100, scanout_cb, &nl);
 
-	/* Create main window */
-	mainwindow = gtk_window_new(GTK_WINDOW_TOPLEVEL);
-	gtk_window_fullscreen(GTK_WINDOW(mainwindow));
-	g_signal_connect_swapped(G_OBJECT(mainwindow), "destroy", gtk_main_quit, NULL);
-
-	da = gtk_drawing_area_new();
-	nl.da = da;
-	gtk_container_add(GTK_CONTAINER(mainwindow), GTK_WIDGET(da));
-	gtk_widget_set_can_focus(GTK_WIDGET(da), TRUE);
-	gtk_widget_add_events(da, GDK_KEY_PRESS_MASK | GDK_KEY_RELEASE_MASK
-	                        | GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK
-	                        | GDK_BUTTON_MOTION_MASK);
-	g_signal_connect(G_OBJECT(da), "draw", G_CALLBACK(draw_sig), &nl);
-	g_signal_connect(G_OBJECT(da), "realize", G_CALLBACK(realise_sig), &nl);
-
-	gtk_widget_grab_focus(GTK_WIDGET(da));
-	gtk_widget_show_all(mainwindow);
+	create_main_window(&nl);
 	gtk_main();
 
 	return 0;