From ad1462d61d0b3f729fe55f2e0bd27bcf2bc8b063 Mon Sep 17 00:00:00 2001
From: Jonathan Moore Liles <j.liles@unix.net>
Date: Tue, 22 Apr 2008 16:23:23 -0500
Subject: [PATCH] Add clock widget.

---
 Timeline/Clock.H | 111 +++++++++++++++++++++++++++++++++++++++++++++++
 Timeline/main.C  |  25 +++++++++--
 2 files changed, 133 insertions(+), 3 deletions(-)
 create mode 100644 Timeline/Clock.H

diff --git a/Timeline/Clock.H b/Timeline/Clock.H
new file mode 100644
index 0000000..d67368e
--- /dev/null
+++ b/Timeline/Clock.H
@@ -0,0 +1,111 @@
+
+/*******************************************************************************/
+/* Copyright (C) 2008 Jonathan Moore Liles                                     */
+/*                                                                             */
+/* 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 2 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; see the file COPYING.  If not,write to the Free Software */
+/* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
+/*******************************************************************************/
+
+
+/* Digital clock widget to show points on the timeline. May be
+switched between Bar Beat Tick and Wallclock displays  */
+
+#include <FL/Fl_Widget.H>
+#include <FL/fl_draw.H>
+
+#include "Timeline.H"
+#include "types.h"
+
+
+class Clock : public Fl_Widget
+{
+    enum { BBT, HMS };
+
+    nframes_t _when;
+
+public:
+
+    static void
+    frame_to_HMS ( char *dst, int n, nframes_t frame )
+        {
+            float S = (double)frame / timeline->sample_rate();
+
+            int M = S / 60; S -= M * 60;
+            int H = M / 60; M -= H * 60;
+
+            snprintf( dst, n, "%d:%d:%.1f", H, M, S );
+        }
+
+    Clock ( int X, int Y, int W, int H, const char *L=0 )
+        : Fl_Widget( X, Y, W, H, L )
+        {
+            _when = 0;
+            box( FL_BORDER_BOX );
+            type( HMS );
+        }
+
+    void set ( nframes_t frame )
+        {
+            if ( _when != frame )
+            {
+                _when = frame;
+                redraw();
+            }
+        }
+
+    void draw ( void )
+        {
+//            fl_rectf( x(), y(), w(), h(), color() );
+
+            draw_box();
+
+            char buf[15];
+
+            switch ( type() )
+            {
+                case HMS:
+                    frame_to_HMS( buf, sizeof( buf ), _when );
+                    break;
+                case BBT:
+//                    frame_to_BBT( _buf, sizeof( buf ), frame );
+                    break;
+                default:
+                    printf( "error: invalid clock type\n" );
+            }
+
+            fl_font( FL_COURIER, 24 );
+
+            Fl_Color c = FL_GREEN;
+
+            fl_color( c );
+
+            const int dx = x() + Fl::box_dx( box() );
+            const int dy = y() + Fl::box_dy( box() );
+            const int dw = w() - Fl::box_dw( box() );
+            const int dh = h() - Fl::box_dh( box() );
+
+            fl_draw( buf, dx, dy, dw, dh, FL_ALIGN_CENTER );
+
+            fl_font( FL_HELVETICA, 9 );
+            fl_color( FL_RED );
+
+            const char *s = type() == HMS ? "HMS" : "BBT";
+
+            fl_draw( s, dx + 4, dy, dw, dh, (Fl_Align)( FL_ALIGN_LEFT | FL_ALIGN_BOTTOM ) );
+
+            if ( label() )
+                fl_draw( label(), dx, dy, dw, dh, (Fl_Align)( FL_ALIGN_RIGHT | FL_ALIGN_BOTTOM ) );
+
+        }
+};
diff --git a/Timeline/main.C b/Timeline/main.C
index 72d3d24..e0cc103 100644
--- a/Timeline/main.C
+++ b/Timeline/main.C
@@ -54,6 +54,9 @@
 
 #include "Engine.H"
 
+
+#include "Clock.H"
+
 Engine *engine;
 Timeline *timeline;
 Transport *transport;
@@ -63,6 +66,17 @@ void cb_undo ( Fl_Widget *w, void *v )
     Loggable::undo();
 }
 
+
+const float UPDATE_FREQ = 0.05f;
+
+static void
+clock_update_cb ( void *w )
+{
+    Fl::repeat_timeout( UPDATE_FREQ, clock_update_cb, w );
+
+    ((Clock *)w)->set( transport->frame );
+}
+
 int
 main ( int argc, char **argv )
 {
@@ -86,15 +100,13 @@ main ( int argc, char **argv )
 
     /* TODO: change to seesion dir */
 
-
     transport = new Transport( 0, 0, 300, 24 );
-    main_window->add( transport );
 
     /* we don't really need a pointer for this */
     engine = new Engine;
     engine->init();
 
-    timeline = new Timeline( 0, 24, main_window->w(), main_window->h() - 24, "Timeline" );
+    timeline = new Timeline( 0, 100, main_window->w(), main_window->h() - 24, "Timeline" );
 
     Loggable::open( "history" );
 
@@ -102,6 +114,13 @@ main ( int argc, char **argv )
     o->shortcut( FL_CTRL + 'z' );
     o->callback( cb_undo, 0 );
 
+    {
+        Clock *o = new Clock( 400, 0, 200, 50, "PLAYHEAD" );
+        o->color( fl_darker( FL_GRAY ) );
+
+        Fl::add_timeout( UPDATE_FREQ, clock_update_cb, o );
+    }
+
     main_window->end();
     main_window->show( argc, argv );