jackpanel/Display.vala

   1 /*
   2     Copyright 2009 by Hans Baier
   3     License: GPLv2+
   4 */
   5
   6 using Gtk;
   7 using Gdk;
   8 using Prolooks;
   9
  10 namespace Jackpanel {
  11
  12 public class Display : PanelDisplayBase {
  13     protected Menu  contextmenu;
  14     public signal void preferences ();
  15
  16     private Jack.Client? make_vala_include_jack_h_workaround;
  17
  18     construct {
  19         _width  = 182;
  20         _height = 49;
  21         set_size_request (width, height);
  22         contextmenu = new Menu ();
  23         var item = new MenuItem.with_label ("Preferences");
  24         item.activate += (item) => {
  25             preferences ();
  26         };
  27
  28         contextmenu.append (item);
  29     }
  30
  31     public bool jack_running { get; set; }
  32
  33     private const double padding           = 3;
  34     private const double font_size         = 16;
  35     private       double vline_x;
  36
  37     protected override void redraw_time () {
  38         queue_draw_area ((int)padding + (int)inner_x, (int)padding + (int)inner_y, (int) vline_x  + (int)padding - (int)inner_x, (int)font_size);
  39     }
  40
  41     protected override void redraw_time_alt () {
  42         queue_draw_area ((int)vline_x + 2*(int)padding, (int)inner_y + (int)padding, (int)inner_width - (int)vline_x, (int)font_size);
  43     }
  44
  45     protected override bool draw_contents (Cairo.Context cr, Gdk.EventExpose event) {
  46         double status_text_font_size = font_size - 4;
  47         double x                     = 0;
  48         double y                     = font_size;
  49         ///////////////////////////// ABOVE
  50         // show time text
  51         text (cr, time, padding + x, y, font_size);
  52
  53         Cairo.TextExtents ext = Cairo.TextExtents();
  54         cr.text_extents (time_alt, out ext);
  55
  56         // show alt text right justified
  57         text (cr, time_alt, inner_width - ext.x_advance - ext.x_bearing - padding, y, font_size);
  58
  59         ////////////////////////////// LINES
  60         // draw lines
  61         Color line_color;
  62         Color.parse (text_color_default, out line_color);
  63         set_source_color (cr, line_color, 0.5);
  64
  65         cr.text_extents (time, out ext);
  66         // clock time separator line
  67         vline_x = padding + x + ext.x_advance + ext.x_bearing + padding + 1;
  68
  69         cr.move_to (vline_x, padding);
  70         cr.rel_line_to (0, inner_height - 2 * padding + 1);
  71         cr.stroke();
  72
  73         var hline_y = padding + ext.height + padding + 2;
  74
  75         // vertical separator line
  76         cr.move_to (padding, hline_y);
  77         cr.rel_line_to (width - 20, 0);
  78         cr.stroke();
  79
  80         ////////////////////////////// BELOW
  81         var y_status_text = 0.5 + hline_y + status_text_font_size;
  82
  83         // Realtime
  84         string rt = "RT";
  85         cr.text_extents (rt, out ext);
  86         if (realtime) {
  87             text (cr, rt, padding, y_status_text, status_text_font_size);
  88         }
  89
  90         realtime_x = padding;
  91         realtime_y = y_status_text - ext.height;
  92         realtime_w = ext.x_advance;
  93         realtime_h = ext.height;
  94
  95         var x_after_rt = padding + ext.x_advance;
  96
  97         // Xruns
  98         string xruns_str = "X: %u".printf (xruns);
  99         cr.text_extents (xruns_str, out ext);
 100         if (xruns == 0) {
 101             text (cr, xruns_str, x_after_rt, y_status_text, status_text_font_size);
 102         } else {
 103             text (cr, xruns_str, x_after_rt, y_status_text, status_text_font_size, "#ff0000");
 104         }
 105
 106         xruns_x = x_after_rt;
 107         xruns_y = y_status_text - ext.height;
 108         xruns_w = vline_x - x_after_rt;
 109         xruns_h = ext.height;
 110
 111         // buffer size
 112         string buffer_size_str = "%2.1fms".printf (buffer_size * 1000.0 / (double)sample_rate);
 113
 114         cr.text_extents (buffer_size_str, out ext);
 115         var y_popup_triangle = y_status_text - ext.height + 1.0;
 116
 117         buffer_size_x = vline_x + padding;
 118         buffer_size_y = y_popup_triangle;
 119         buffer_size_w = ext.x_advance + ext.x_bearing + popup_triangle_width ();
 120         buffer_size_h = ext.height;
 121         text (cr, buffer_size_str, buffer_size_x, y_status_text, status_text_font_size);
 122         draw_popup_triangle (cr, buffer_size_x + ext.x_advance + ext.x_bearing + 1.0, y_popup_triangle);
 123
 124         // sample_rate
 125         string sample_rate_str = "%u".printf (sample_rate);
 126         cr.text_extents (sample_rate_str, out ext);
 127
 128         sample_rate_x = inner_width - ext.x_advance - ext.x_bearing - padding - 1 - popup_triangle_width ();
 129         sample_rate_y = y_popup_triangle;
 130         sample_rate_w = ext.x_advance + ext.x_bearing + popup_triangle_width ();
 131         sample_rate_h = ext.height;
 132         text (cr, sample_rate_str, sample_rate_x, y_status_text, status_text_font_size);
 133         draw_popup_triangle (cr, inner_width - popup_triangle_width () - padding, y_popup_triangle);
 134
 135         return false;
 136     }
 137
 138     public override bool button_press_event (Gdk.EventButton event) {
 139        if (jack_running && event.type == EventType.BUTTON_PRESS && event.button == 1) {
 140            if (is_in_rect (event.x, event.y, xruns_x, xruns_y, xruns_w, xruns_h)) {
 141                 reset_xruns_requested ();
 142                 return true;
 143             }
 144         }
 145         if (jack_running && handle_events_for_active_items (event)) {
 146             return true;
 147         } else if (event.type == EventType.BUTTON_PRESS && event.button == 3) {
 148             contextmenu.popup (null, null, null, 3, event.time);
 149             contextmenu.show_all();
 150             return true;
 151         }
 152
 153         return false;
 154     }
 155
 156     private bool was_in_realtime_rect;
 157
 158     public override bool motion_notify_event (Gdk.EventMotion event) {
 159     /*  This should highlight the sensitive areas the mouse is over
 160      *  but isn't quite ready yet
 161         var cr = Gdk.cairo_create (this.window);
 162
 163         if (is_in_rect (event.x, event.y, realtime_x, realtime_y, realtime_w, realtime_h)) {
 164             was_in_realtime_rect = true;
 165             set_source_color_string (cr, text_color_default, 0.1);
 166             cr.rectangle (realtime_x, realtime_y, realtime_w, realtime_h);
 167             cr.fill ();
 168         } else {
 169             if (was_in_realtime_rect) {
 170                 queue_draw ();
 171             }
 172         }
 173     */
 174         return false;
 175     }
 176
 177 }
 178
 179 } //namespace Jackpanel
 180