/*  Demo Recorder for MAEMO 5
*   Copyright (C) 2010 Dru Moore <usr@dru-id.co.uk>
*   This program is free software; you can redistribute it and/or modify
*   it under the terms of the GNU General Public License version 2,
*   or (at your option) any later version, as published by the Free
*   Software Foundation
*
*   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, write to the
*   Free Software Foundation, Inc.,
*   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
*/

namespace IdWorks {

public class MeterWidget : Gtk.VBox {
  
  private Gtk.Label title_label;
  private Gtk.Label peak_label;
  private Gtk.Label decay_label;
  private DbMonitorWidget meter;  
  
  private static const int BORDER_WIDTH = 4;
  private static const int BORDER_HEIGHT = 4;
  //private Pango.Layout layout;
  private static const double MIN_VALUE = 0.0;
  private static const double MAX_VALUE = 1.5;
  
  private static const double ZERO_VALUE = 1.0;
  
  private double peak;
  private double decay;
  public void set_peak(double val) {
    this.peak = (MAX_VALUE > val) ? val : MAX_VALUE;
    this.peak_label.set_text("%02.2f".printf(val));
    meter.set_peak(Math.pow (10, val / 20));
  }
  public void set_decay(double val) {
    this.decay = (MAX_VALUE > val) ? val : MAX_VALUE;
    this.decay_label.set_text("%02.2f".printf(val));
    meter.set_decay(Math.pow (10, val / 20));
  }
  private DbMonitorWidget.Layout layout = DbMonitorWidget.Layout.VERTICAL;
  public void set_layout(DbMonitorWidget.Layout layout) {
    this.layout = layout;
    meter.set_layout(layout);
  }
  
  public string title {
    get {
      return title_label.get_text();
    }
    set {
      title_label.set_text(value);
    }
  }
  
  construct {
    title_label = new Gtk.Label("");
    title_label.modify_font(Pango.FontDescription.from_string("Sans 20"));
    title_label.set_padding(4, 2);
    //title_label.set_alignment(0,0);
    
    this.pack_start(title_label, false, true, 4);    
    
    meter = new DbMonitorWidget();
    meter.set_layout(layout);
    meter.set_peak(0.0);
    meter.set_decay(0.0);
    this.pack_start(meter, true, true, 0);
  
    Gtk.HBox display = new Gtk.HBox(true, 8);
    
    peak_label = new Gtk.Label("0.0");
    peak_label.modify_font(Pango.FontDescription.from_string("Sans 40"));
    peak_label.set_padding(4, 2);
    //peak_label.set_alignment(0,0);
    decay_label = new Gtk.Label("0.0");
    decay_label.modify_font(Pango.FontDescription.from_string("Sans 40"));
    decay_label.set_padding(4, 2);
    //decay_label.set_alignment(0,0);
    
    display.add(peak_label);
    display.add(decay_label);
    
    this.pack_start(display, false, true, 0);    
    
    Gtk.HBox display2 = new Gtk.HBox(true, 0);
    
    Gtk.Label peak_label2 = new Gtk.Label("dB Peak");
    peak_label2.modify_font(Pango.FontDescription.from_string("Sans 16"));
    peak_label2.set_padding(0, 0);
    //peak_label2.set_alignment(0,0);
    Gtk.Label decay_label2 = new Gtk.Label("dB Decay");
    decay_label2.modify_font(Pango.FontDescription.from_string("Sans 16"));
    decay_label2.set_padding(0, 0);
    //decay_label2.set_alignment(0,0);
    
    display2.add(peak_label2);
    display2.add(decay_label2);
    
    this.pack_start(display2, false, true, 0);    
    
  }  
  
}

}