Add IdoPlaybackMenuItem

A menu item that can control playback of a media player.

Adapted from transport-widget.c formerly found in lp:indicator-sound.

1 files changed, 1596 insertions, 0 deletions

diff --git a/src/idoplaybackmenuitem.c b/src/idoplaybackmenuitem.c
new file mode 100644
index 0000000..f5b8f77
--- /dev/null
+++ b/src/idoplaybackmenuitem.c
@@ -0,0 +1,1596 @@
+/*
+ * Copyright 2013 Canonical Ltd.
+ *
+ * This program is free software: you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 3, 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 warranties of
+ * MERCHANTABILITY, SATISFACTORY QUALITY, 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/>.
+ *
+ * Authors:
+ *     Conor Curran <conor.curran@canonical.com>
+ *     Mirco Müller <mirco.mueller@canonical.com>
+ *     Andrea Cimitan <andrea.cimitan@canonical.com>
+ *     Lars Uebernickel <lars.uebernickel@canonical.com>
+ */
+
+#include "config.h"
+
+#include "idoplaybackmenuitem.h"
+
+#include <gdk/gdkkeysyms.h>
+#include <math.h>
+
+typedef enum
+{
+  STATE_PAUSED,
+  STATE_PLAYING,
+  STATE_LAUNCHING
+} State;
+
+typedef enum
+{
+  BUTTON_NONE,
+  BUTTON_PREVIOUS,
+  BUTTON_PLAYPAUSE,
+  BUTTON_NEXT
+} Button;
+
+typedef GtkMenuItemClass IdoPlaybackMenuItemClass;
+
+struct _IdoPlaybackMenuItem
+{
+  GtkMenuItem parent;
+
+  State current_state;
+  Button cur_pushed_button;
+  Button cur_hover_button;
+  gboolean has_focus;
+  gboolean keyboard_activated; /* TRUE if the current button was activated with a key */
+
+  GActionGroup *action_group;
+  gchar *play_action;
+  gchar *next_action;
+  gchar *prev_action;
+};
+
+G_DEFINE_TYPE (IdoPlaybackMenuItem, ido_playback_menu_item, GTK_TYPE_MENU_ITEM);
+
+static gboolean ido_playback_menu_item_draw (GtkWidget* button, cairo_t *cr);
+
+static void
+ido_playback_menu_item_dispose (GObject *object)
+{
+  IdoPlaybackMenuItem *item = IDO_PLAYBACK_MENU_ITEM (object);
+
+  g_clear_object (&item->action_group);
+
+  G_OBJECT_CLASS (ido_playback_menu_item_parent_class)->dispose (object);
+}
+
+static void
+ido_playback_menu_item_finalize (GObject *object)
+{
+  IdoPlaybackMenuItem *item = IDO_PLAYBACK_MENU_ITEM (object);
+
+  g_free (item->play_action);
+  g_free (item->next_action);
+  g_free (item->prev_action);
+
+  G_OBJECT_CLASS (ido_playback_menu_item_parent_class)->finalize (object);
+}
+
+static Button
+ido_playback_menu_item_get_button_at_pos (gint x,
+                                          gint y)
+{
+  if (x > 57 && x < 102 && y > 12 && y < 40)
+    return BUTTON_PREVIOUS;
+  else if (x > 101 && x < 143 && y > 5 && y < 47)
+    return BUTTON_PLAYPAUSE;
+  else if (x > 142 && x < 187 && y > 12 && y < 40)
+    return BUTTON_NEXT;
+
+  return BUTTON_NONE;
+}
+
+static gboolean
+ido_playback_menu_item_parent_key_press_event (GtkWidget   *widget,
+                                               GdkEventKey *event,
+                                               gpointer     user_data)
+{
+  IdoPlaybackMenuItem *self = user_data;
+
+  /* only listen to events when the playback menu item is selected */
+  if (!self->has_focus)
+    return FALSE;
+
+  switch (event->keyval)
+    {
+    case GDK_KEY_Left:
+      self->cur_pushed_button = BUTTON_PREVIOUS;
+      if (self->action_group && self->prev_action)
+        g_action_group_activate_action (self->action_group, self->prev_action, NULL);
+      break;
+
+    case GDK_KEY_Right:
+      self->cur_pushed_button = BUTTON_NEXT;
+      if (self->action_group && self->next_action)
+        g_action_group_activate_action (self->action_group, self->next_action, NULL);
+      break;
+
+    case GDK_KEY_space:
+      self->cur_pushed_button = BUTTON_PLAYPAUSE;
+      if (self->action_group && self->play_action)
+        g_action_group_activate_action (self->action_group, self->play_action, NULL);
+      break;
+
+    default:
+      self->cur_pushed_button = BUTTON_NONE;
+    }
+
+  if (self->cur_pushed_button)
+    {
+      self->keyboard_activated = TRUE;
+      gtk_widget_queue_draw (widget);
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+static gboolean
+ido_playback_menu_item_parent_key_release_event (GtkWidget   *widget,
+                                                 GdkEventKey *event,
+                                                 gpointer     user_data)
+{
+  IdoPlaybackMenuItem *self = user_data;
+
+  switch (event->keyval)
+    {
+    case GDK_KEY_Left:
+    case GDK_KEY_Right:
+    case GDK_KEY_space:
+      self->cur_pushed_button = BUTTON_NONE;
+      self->keyboard_activated = FALSE;
+      gtk_widget_queue_draw (widget);
+      return TRUE;
+    }
+
+  return FALSE;
+}
+
+static void
+ido_playback_menu_item_parent_set (GtkWidget *widget,
+                                   GtkWidget *old_parent)
+{
+  GtkWidget *parent;
+
+  /* Menus don't pass key events to their children. This works around
+   * that by listening to key events on the parent widget. */
+
+  if (old_parent)
+    {
+      g_signal_handlers_disconnect_by_func (old_parent, ido_playback_menu_item_parent_key_press_event, widget);
+      g_signal_handlers_disconnect_by_func (old_parent, ido_playback_menu_item_parent_key_release_event, widget);
+    }
+
+  parent = gtk_widget_get_parent (widget);
+  if (parent)
+    {
+      g_signal_connect (parent, "key-press-event",
+                        G_CALLBACK (ido_playback_menu_item_parent_key_press_event), widget);
+      g_signal_connect (parent, "key-release-event",
+                        G_CALLBACK (ido_playback_menu_item_parent_key_release_event), widget);
+    }
+}
+
+static void
+ido_playback_menu_item_select (GtkMenuItem *item)
+{
+  IdoPlaybackMenuItem *self = IDO_PLAYBACK_MENU_ITEM (item);
+
+  self->has_focus = TRUE;
+
+  GTK_MENU_ITEM_CLASS (ido_playback_menu_item_parent_class)->select (item);
+}
+
+static void
+ido_playback_menu_item_deselect (GtkMenuItem *item)
+{
+  IdoPlaybackMenuItem *self = IDO_PLAYBACK_MENU_ITEM (item);
+
+  self->has_focus = FALSE;
+
+  GTK_MENU_ITEM_CLASS (ido_playback_menu_item_parent_class)->deselect (item);
+}
+
+static gboolean
+ido_playback_menu_item_button_press_event (GtkWidget      *menuitem,
+                                           GdkEventButton *event)
+{
+  IdoPlaybackMenuItem *item = IDO_PLAYBACK_MENU_ITEM (menuitem);
+
+  item->cur_pushed_button = ido_playback_menu_item_get_button_at_pos (event->x, event->y);
+  gtk_widget_queue_draw (menuitem);
+
+  return TRUE;
+}
+
+static gboolean
+ido_playback_menu_item_button_release_event (GtkWidget      *menuitem,
+                                             GdkEventButton *event)
+{
+  IdoPlaybackMenuItem *item = IDO_PLAYBACK_MENU_ITEM (menuitem);
+  Button button;
+
+  button = ido_playback_menu_item_get_button_at_pos (event->x, event->y);
+  if (button != item->cur_pushed_button)
+    button = BUTTON_NONE;
+
+  switch (button)
+    {
+    case BUTTON_NONE:
+      break;
+
+    case BUTTON_PREVIOUS:
+      if (item->action_group && item->prev_action)
+        g_action_group_activate_action (item->action_group, item->prev_action, NULL);
+      break;
+
+    case BUTTON_NEXT:
+      if (item->action_group && item->next_action)
+        g_action_group_activate_action (item->action_group, item->next_action, NULL);
+      break;
+
+    case BUTTON_PLAYPAUSE:
+      if (item->action_group && item->play_action)
+        g_action_group_activate_action (item->action_group, item->play_action, NULL);
+      break;
+    }
+
+  item->cur_pushed_button = BUTTON_NONE;
+  gtk_widget_queue_draw (menuitem);
+
+  return TRUE;
+}
+
+static gboolean
+ido_playback_menu_item_motion_notify_event (GtkWidget      *menuitem,
+                                            GdkEventMotion *event)
+{
+  IdoPlaybackMenuItem *item = IDO_PLAYBACK_MENU_ITEM (menuitem);
+
+  item->cur_hover_button = ido_playback_menu_item_get_button_at_pos (event->x, event->y);
+  gtk_widget_queue_draw (menuitem);
+
+  return TRUE;
+}
+
+static gboolean
+ido_playback_menu_item_leave_notify_event (GtkWidget        *menuitem,
+                                           GdkEventCrossing *event)
+{
+  IdoPlaybackMenuItem *item = IDO_PLAYBACK_MENU_ITEM (menuitem);
+
+  item->cur_pushed_button = BUTTON_NONE;
+  item->cur_hover_button = BUTTON_NONE;
+  gtk_widget_queue_draw (GTK_WIDGET(menuitem));
+
+  return TRUE;
+}
+
+static void
+ido_playback_menu_item_class_init (IdoPlaybackMenuItemClass *klass)
+{
+  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
+  GtkWidgetClass *widget_class = GTK_WIDGET_CLASS (klass);
+  GtkMenuItemClass *menuitem_class = GTK_MENU_ITEM_CLASS (klass);
+
+  gobject_class->dispose = ido_playback_menu_item_dispose;
+  gobject_class->finalize = ido_playback_menu_item_finalize;
+
+  widget_class->button_press_event = ido_playback_menu_item_button_press_event;
+  widget_class->button_release_event = ido_playback_menu_item_button_release_event;
+  widget_class->motion_notify_event = ido_playback_menu_item_motion_notify_event;
+  widget_class->leave_notify_event = ido_playback_menu_item_leave_notify_event;
+  widget_class->parent_set = ido_playback_menu_item_parent_set;
+  widget_class->draw = ido_playback_menu_item_draw;
+
+  menuitem_class->select = ido_playback_menu_item_select;
+  menuitem_class->deselect = ido_playback_menu_item_deselect;
+}
+
+static void
+ido_playback_menu_item_init (IdoPlaybackMenuItem *self)
+{
+  gtk_style_context_add_class (gtk_widget_get_style_context (GTK_WIDGET (self)), GTK_STYLE_CLASS_SPINNER);
+
+  gtk_widget_set_size_request (GTK_WIDGET (self), 200, 43);
+}
+
+GtkMenuItem *
+ido_playback_menu_item_new_from_model (GMenuItem    *item,
+                                       GActionGroup *actions)
+{
+  IdoPlaybackMenuItem *widget;
+
+  widget = g_object_new (IDO_TYPE_PLAYBACK_MENU_ITEM, NULL);
+  widget->action_group = g_object_ref (actions);
+
+  g_menu_item_get_attribute (item, "x-canonical-play-action", "s", &widget->play_action);
+  g_menu_item_get_attribute (item, "x-canonical-next-action", "s", &widget->next_action);
+  g_menu_item_get_attribute (item, "x-canonical-previous-action", "s", &widget->prev_action);
+
+  return GTK_MENU_ITEM (widget);
+}
+
+
+/*
+ * Drawing
+ */
+
+#define RECT_WIDTH 130.0f
+#define Y 7.0f
+#define X 70.0f
+#define INNER_RADIUS 12.5
+#define MIDDLE_RADIUS 13.0f
+#define OUTER_RADIUS  14.5f
+#define CIRCLE_RADIUS 21.0f
+#define PREV_WIDTH  25.0f
+#define PREV_HEIGHT 17.0f
+#define NEXT_WIDTH  25.0f //PREV_WIDTH
+#define NEXT_HEIGHT 17.0f //PREV_HEIGHT
+#define TRI_WIDTH  11.0f
+#define TRI_HEIGHT 13.0f
+#define TRI_OFFSET  6.0f
+#define PREV_X 68.0f
+#define PREV_Y 13.0f
+#define NEXT_X 146.0f
+#define NEXT_Y 13.0f //prev_y
+#define PAUSE_WIDTH 21.0f
+#define PAUSE_HEIGHT 27.0f
+#define BAR_WIDTH 4.5f
+#define BAR_HEIGHT 24.0f
+#define BAR_OFFSET 10.0f
+#define PAUSE_X 111.0f
+#define PAUSE_Y 7.0f
+#define PLAY_WIDTH 28.0f
+#define PLAY_HEIGHT 29.0f
+#define PLAY_PADDING 5.0f
+#define INNER_START_SHADE 0.98
+#define INNER_END_SHADE 0.98
+#define MIDDLE_START_SHADE 1.0
+#define MIDDLE_END_SHADE 1.0
+#define OUTER_START_SHADE 0.75
+#define OUTER_END_SHADE 1.3
+#define SHADOW_BUTTON_SHADE 0.8
+#define OUTER_PLAY_START_SHADE 0.7
+#define OUTER_PLAY_END_SHADE 1.38
+#define BUTTON_START_SHADE 1.1
+#define BUTTON_END_SHADE 0.9
+#define BUTTON_SHADOW_SHADE 0.8
+#define INNER_COMPRESSED_START_SHADE 1.0
+#define INNER_COMPRESSED_END_SHADE 1.0
+
+typedef struct
+{
+  double r;
+  double g;
+  double b;
+} CairoColorRGB;
+
+void _color_shade (const CairoColorRGB *a, float k, CairoColorRGB *b);
+
+
+static void
+draw_gradient (cairo_t* cr,
+               double   x,
+               double   y,
+               double   w,
+               double   r,
+               double*  rgba_start,
+               double*  rgba_end)
+{
+  cairo_pattern_t* pattern = NULL;
+
+  cairo_move_to (cr, x, y);
+  cairo_line_to (cr, x + w - 2.0f * r, y);
+  cairo_arc (cr,
+       x + w - 2.0f * r,
+       y + r,
+       r,
+       -90.0f * G_PI / 180.0f,
+       90.0f * G_PI / 180.0f);
+  cairo_line_to (cr, x, y + 2.0f * r);
+  cairo_arc (cr,
+       x,
+       y + r,
+       r,
+       90.0f * G_PI / 180.0f,
+       270.0f * G_PI / 180.0f);
+  cairo_close_path (cr);
+
+  pattern = cairo_pattern_create_linear (x, y, x, y + 2.0f * r);
+  cairo_pattern_add_color_stop_rgba (pattern,
+                                     0.0f,
+                                     rgba_start[0],
+                                     rgba_start[1],
+                                     rgba_start[2],
+                                     rgba_start[3]);
+  cairo_pattern_add_color_stop_rgba (pattern,
+                                     1.0f,
+                                     rgba_end[0],
+                                     rgba_end[1],
+                                     rgba_end[2],
+                                     rgba_end[3]);
+  cairo_set_source (cr, pattern);
+  cairo_fill (cr);
+  cairo_pattern_destroy (pattern);
+}
+
+static void
+draw_circle (cairo_t* cr,
+       double   x,
+       double   y,
+       double   r,
+       double*  rgba_start,
+       double*  rgba_end)
+{
+  cairo_pattern_t* pattern = NULL;
+
+  cairo_move_to (cr, x, y);
+  cairo_arc (cr,
+       x + r,
+       y + r,
+       r,
+       0.0f * G_PI / 180.0f,
+       360.0f * G_PI / 180.0f);
+
+  pattern = cairo_pattern_create_linear (x, y, x, y + 2.0f * r);
+  cairo_pattern_add_color_stop_rgba (pattern,
+                                     0.0f,
+                                     rgba_start[0],
+                                     rgba_start[1],
+                                     rgba_start[2],
+                                     rgba_start[3]);
+  cairo_pattern_add_color_stop_rgba (pattern,
+                                     1.0f,
+                                     rgba_end[0],
+                                     rgba_end[1],
+                                     rgba_end[2],
+                                     rgba_end[3]);
+  cairo_set_source (cr, pattern);
+  cairo_fill (cr);
+  cairo_pattern_destroy (pattern);
+}
+
+static void
+_setup (cairo_t**         cr,
+  cairo_surface_t** surf,
+  gint              width,
+  gint              height)
+{
+  if (!cr || !surf)
+    return;
+
+  *surf = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, width, height);
+  *cr = cairo_create (*surf);
+  cairo_scale (*cr, 1.0f, 1.0f);
+  cairo_set_operator (*cr, CAIRO_OPERATOR_CLEAR);
+  cairo_paint (*cr);
+  cairo_set_operator (*cr, CAIRO_OPERATOR_OVER);
+}
+
+static void
+_mask_prev (cairo_t* cr,
+      double   x,
+      double   y,
+      double   tri_width,
+      double   tri_height,
+      double   tri_offset)
+{
+  if (!cr)
+    return;
+
+  cairo_move_to (cr, x,             y + tri_height / 2.0f);
+  cairo_line_to (cr, x + tri_width, y);
+  cairo_line_to (cr, x + tri_width, y + tri_height);
+  x += tri_offset;
+  cairo_move_to (cr, x,             y + tri_height / 2.0f);
+  cairo_line_to (cr, x + tri_width, y);
+  cairo_line_to (cr, x + tri_width, y + tri_height);
+  x -= tri_offset;
+  cairo_rectangle (cr, x, y, 2.5f, tri_height);
+  cairo_close_path (cr);
+}
+
+static void
+_mask_next (cairo_t* cr,
+      double   x,
+      double   y,
+      double   tri_width,
+      double   tri_height,
+      double   tri_offset)
+{
+  if (!cr)
+    return;
+
+  cairo_move_to (cr, x,             y);
+  cairo_line_to (cr, x + tri_width, y + tri_height / 2.0f);
+  cairo_line_to (cr, x,             y + tri_height);
+  x += tri_offset;
+  cairo_move_to (cr, x,             y);
+  cairo_line_to (cr, x + tri_width, y + tri_height / 2.0f);
+  cairo_line_to (cr, x,             y + tri_height);
+  x -= tri_offset;
+  x += 2.0f * tri_width - tri_offset - 1.0f;
+  cairo_rectangle (cr, x, y, 2.5f, tri_height);
+
+  cairo_close_path (cr);
+}
+
+static void
+_mask_pause (cairo_t* cr,
+       double   x,
+       double   y,
+       double   bar_width,
+       double   bar_height,
+       double   bar_offset)
+{
+  if (!cr)
+    return;
+
+  cairo_set_line_width (cr, bar_width);
+  cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
+
+  x += bar_width;
+  y += bar_width;
+  cairo_move_to (cr, x,              y);
+  cairo_line_to (cr, x,              y + bar_height);
+  cairo_move_to (cr, x + bar_offset, y);
+  cairo_line_to (cr, x + bar_offset, y + bar_height);
+
+}
+
+static void
+_mask_play (cairo_t* cr,
+       double   x,
+       double   y,
+       double   tri_width,
+       double   tri_height)
+{
+  if (!cr)
+    return;
+
+  cairo_move_to (cr, x,             y);
+  cairo_line_to (cr, x + tri_width, y + tri_height / 2.0f);
+  cairo_line_to (cr, x,             y + tri_height);
+  cairo_close_path (cr);
+
+}
+
+static void
+_fill (cairo_t* cr,
+       double   x_start,
+       double   y_start,
+       double   x_end,
+       double   y_end,
+       double*  rgba_start,
+       double*  rgba_end,
+       gboolean stroke)
+{
+  cairo_pattern_t* pattern = NULL;
+
+  if (!cr || !rgba_start || !rgba_end)
+    return;
+
+  pattern = cairo_pattern_create_linear (x_start, y_start, x_end, y_end);
+  cairo_pattern_add_color_stop_rgba (pattern,
+             0.0f,
+             rgba_start[0],
+             rgba_start[1],
+             rgba_start[2],
+             rgba_start[3]);
+  cairo_pattern_add_color_stop_rgba (pattern,
+             1.0f,
+             rgba_end[0],
+             rgba_end[1],
+             rgba_end[2],
+             rgba_end[3]);
+  cairo_set_source (cr, pattern);
+  if (stroke)
+    cairo_stroke (cr);
+  else
+    cairo_fill (cr);
+  cairo_pattern_destroy (pattern);
+}
+
+static void
+_finalize (cairo_t*          cr,
+     cairo_t**         cr_surf,
+     cairo_surface_t** surf,
+     double            x,
+     double            y)
+{
+  if (!cr || !cr_surf || !surf)
+    return;
+
+  cairo_set_source_surface (cr, *surf, x, y);
+  cairo_paint (cr);
+  cairo_surface_destroy (*surf);
+  cairo_destroy (*cr_surf);
+}
+
+static void
+_finalize_repaint (cairo_t*          cr,
+             cairo_t**         cr_surf,
+             cairo_surface_t** surf,
+             double            x,
+             double            y,
+             int               repaints)
+{
+  if (!cr || !cr_surf || !surf)
+    return;
+
+  while (repaints > 0)
+  {
+    cairo_set_source_surface (cr, *surf, x, y);
+    cairo_paint (cr);
+    repaints--;
+  }
+
+  cairo_surface_destroy (*surf);
+  cairo_destroy (*cr_surf);
+}
+
+static void
+_color_rgb_to_hls (gdouble *r,
+                   gdouble *g,
+                   gdouble *b)
+{
+  gdouble min;
+  gdouble max;
+  gdouble red;
+  gdouble green;
+  gdouble blue;
+  gdouble h = 0;
+  gdouble l;
+  gdouble s;
+  gdouble delta;
+
+  red = *r;
+  green = *g;
+  blue = *b;
+
+  if (red > green)
+  {
+    if (red > blue)
+      max = red;
+    else
+      max = blue;
+
+    if (green < blue)
+      min = green;
+    else
+    min = blue;
+  }
+  else
+  {
+    if (green > blue)
+      max = green;
+    else
+    max = blue;
+
+    if (red < blue)
+      min = red;
+    else
+      min = blue;
+  }
+  l = (max+min)/2;
+  if (fabs (max-min) < 0.0001)
+  {
+    h = 0;
+    s = 0;
+  }
+  else
+  {
+    if (l <= 0.5)
+    s = (max-min)/(max+min);
+    else
+    s = (max-min)/(2-max-min);
+
+    delta = (max -min) != 0 ? (max -min) : 1;
+
+    if(delta == 0)
+      delta = 1;
+    if (red == max)
+      h = (green-blue)/delta;
+    else if (green == max)
+      h = 2+(blue-red)/delta;
+    else if (blue == max)
+      h = 4+(red-green)/delta;
+
+    h *= 60;
+    if (h < 0.0)
+      h += 360;
+  }
+
+  *r = h;
+  *g = l;
+  *b = s;
+}
+
+static void
+_color_hls_to_rgb (gdouble *h,
+                   gdouble *l,
+                   gdouble *s)
+{
+  gdouble hue;
+  gdouble lightness;
+  gdouble saturation;
+  gdouble m1, m2;
+  gdouble r, g, b;
+
+  lightness = *l;
+  saturation = *s;
+
+  if (lightness <= 0.5)
+    m2 = lightness*(1+saturation);
+  else
+    m2 = lightness+saturation-lightness*saturation;
+
+  m1 = 2*lightness-m2;
+
+  if (saturation == 0)
+  {
+    *h = lightness;
+    *l = lightness;
+    *s = lightness;
+  }
+  else
+  {
+    hue = *h+120;
+    while (hue > 360)
+      hue -= 360;
+    while (hue < 0)
+      hue += 360;
+
+    if (hue < 60)
+      r = m1+(m2-m1)*hue/60;
+    else if (hue < 180)
+      r = m2;
+    else if (hue < 240)
+      r = m1+(m2-m1)*(240-hue)/60;
+    else
+      r = m1;
+
+    hue = *h;
+    while (hue > 360)
+      hue -= 360;
+    while (hue < 0)
+      hue += 360;
+
+    if (hue < 60)
+      g = m1+(m2-m1)*hue/60;
+    else if (hue < 180)
+      g = m2;
+    else if (hue < 240)
+      g = m1+(m2-m1)*(240-hue)/60;
+    else
+      g = m1;
+
+    hue = *h-120;
+    while (hue > 360)
+      hue -= 360;
+    while (hue < 0)
+      hue += 360;
+
+    if (hue < 60)
+      b = m1+(m2-m1)*hue/60;
+    else if (hue < 180)
+      b = m2;
+    else if (hue < 240)
+      b = m1+(m2-m1)*(240-hue)/60;
+    else
+      b = m1;
+
+    *h = r;
+    *l = g;
+    *s = b;
+  }
+}
+
+void
+_color_shade (const CairoColorRGB *a, float k, CairoColorRGB *b)
+{
+  double red;
+  double green;
+  double blue;
+
+  red   = a->r;
+  green = a->g;
+  blue  = a->b;
+
+  if (k == 1.0)
+  {
+    b->r = red;
+    b->g = green;
+    b->b = blue;
+    return;
+  }
+
+  _color_rgb_to_hls (&red, &green, &blue);
+
+  green *= k;
+  if (green > 1.0)
+    green = 1.0;
+  else if (green < 0.0)
+    green = 0.0;
+
+  blue *= k;
+  if (blue > 1.0)
+    blue = 1.0;
+  else if (blue < 0.0)
+    blue = 0.0;
+
+  _color_hls_to_rgb (&red, &green, &blue);
+
+  b->r = red;
+  b->g = green;
+  b->b = blue;
+}
+
+static inline void
+_blurinner (guchar* pixel,
+      gint*   zR,
+      gint*   zG,
+      gint*   zB,
+      gint*   zA,
+      gint    alpha,
+      gint    aprec,
+      gint    zprec)
+{
+  gint R;
+  gint G;
+  gint B;
+  guchar A;
+
+  R = *pixel;
+  G = *(pixel + 1);
+  B = *(pixel + 2);
+  A = *(pixel + 3);
+
+  *zR += (alpha * ((R << zprec) - *zR)) >> aprec;
+  *zG += (alpha * ((G << zprec) - *zG)) >> aprec;
+  *zB += (alpha * ((B << zprec) - *zB)) >> aprec;
+  *zA += (alpha * ((A << zprec) - *zA)) >> aprec;
+
+  *pixel       = *zR >> zprec;
+  *(pixel + 1) = *zG >> zprec;
+  *(pixel + 2) = *zB >> zprec;
+  *(pixel + 3) = *zA >> zprec;
+}
+
+static inline void
+_blurrow (guchar* pixels,
+    gint    width,
+    gint    height,
+    gint    channels,
+    gint    line,
+    gint    alpha,
+    gint    aprec,
+    gint    zprec)
+{
+  gint    zR;
+  gint    zG;
+  gint    zB;
+  gint    zA;
+  gint    index;
+  guchar* scanline;
+
+  scanline = &(pixels[line * width * channels]);
+
+  zR = *scanline << zprec;
+  zG = *(scanline + 1) << zprec;
+  zB = *(scanline + 2) << zprec;
+  zA = *(scanline + 3) << zprec;
+
+  for (index = 0; index < width; index ++)
+    _blurinner (&scanline[index * channels],
+          &zR,
+          &zG,
+          &zB,
+          &zA,
+          alpha,
+          aprec,
+          zprec);
+
+  for (index = width - 2; index >= 0; index--)
+    _blurinner (&scanline[index * channels],
+          &zR,
+          &zG,
+          &zB,
+          &zA,
+          alpha,
+          aprec,
+          zprec);
+}
+
+static inline void
+_blurcol (guchar* pixels,
+    gint    width,
+    gint    height,
+    gint    channels,
+    gint    x,
+    gint    alpha,
+    gint    aprec,
+    gint    zprec)
+{
+  gint zR;
+  gint zG;
+  gint zB;
+  gint zA;
+  gint index;
+  guchar* ptr;
+
+  ptr = pixels;
+
+  ptr += x * channels;
+
+  zR = *((guchar*) ptr    ) << zprec;
+  zG = *((guchar*) ptr + 1) << zprec;
+  zB = *((guchar*) ptr + 2) << zprec;
+  zA = *((guchar*) ptr + 3) << zprec;
+
+  for (index = width; index < (height - 1) * width; index += width)
+    _blurinner ((guchar*) &ptr[index * channels],
+          &zR,
+          &zG,
+          &zB,
+          &zA,
+          alpha,
+          aprec,
+          zprec);
+
+  for (index = (height - 2) * width; index >= 0; index -= width)
+    _blurinner ((guchar*) &ptr[index * channels],
+          &zR,
+          &zG,
+          &zB,
+          &zA,
+          alpha,
+          aprec,
+          zprec);
+}
+
+void
+_expblur (guchar* pixels,
+    gint    width,
+    gint    height,
+    gint    channels,
+    gint    radius,
+    gint    aprec,
+    gint    zprec)
+{
+  gint alpha;
+  gint row = 0;
+  gint col = 0;
+
+  if (radius < 1)
+    return;
+
+  // calculate the alpha such that 90% of
+  // the kernel is within the radius.
+  // (Kernel extends to infinity)
+  alpha = (gint) ((1 << aprec) * (1.0f - expf (-2.3f / (radius + 1.f))));
+
+  for (; row < height; row++)
+    _blurrow (pixels,
+        width,
+        height,
+        channels,
+        row,
+        alpha,
+        aprec,
+        zprec);
+
+  for(; col < width; col++)
+    _blurcol (pixels,
+        width,
+        height,
+        channels,
+        col,
+        alpha,
+        aprec,
+        zprec);
+
+  return;
+}
+
+void
+_surface_blur (cairo_surface_t* surface,
+               guint            radius)
+{
+  guchar*        pixels;
+  guint          width;
+  guint          height;
+  cairo_format_t format;
+
+  // before we mess with the surface execute any pending drawing
+  cairo_surface_flush (surface);
+
+  pixels = cairo_image_surface_get_data (surface);
+  width  = cairo_image_surface_get_width (surface);
+  height = cairo_image_surface_get_height (surface);
+  format = cairo_image_surface_get_format (surface);
+
+  switch (format)
+  {
+    case CAIRO_FORMAT_ARGB32:
+      _expblur (pixels, width, height, 4, radius, 16, 7);
+    break;
+
+    case CAIRO_FORMAT_RGB24:
+      _expblur (pixels, width, height, 3, radius, 16, 7);
+    break;
+
+    case CAIRO_FORMAT_A8:
+      _expblur (pixels, width, height, 1, radius, 16, 7);
+    break;
+
+    default :
+      // do nothing
+    break;
+  }
+
+  // inform cairo we altered the surfaces contents
+  cairo_surface_mark_dirty (surface);
+}
+
+static gboolean
+ido_playback_menu_item_draw (GtkWidget* button, cairo_t *cr)
+{
+  IdoPlaybackMenuItem *item = IDO_PLAYBACK_MENU_ITEM (button);
+
+  g_return_val_if_fail(IDO_IS_PLAYBACK_MENU_ITEM (button), FALSE);
+  g_return_val_if_fail(cr != NULL, FALSE);
+
+  cairo_surface_t*  surf = NULL;
+  cairo_t*       cr_surf = NULL;
+
+  GtkStyle *style;
+
+  gtk_style_context_add_class (gtk_widget_get_style_context (button),
+                               GTK_STYLE_CLASS_MENU);
+  CairoColorRGB bg_color, fg_color, bg_selected, bg_prelight;
+  CairoColorRGB color_middle[2], color_middle_prelight[2], color_outer[2], color_outer_prelight[2],
+                color_play_outer[2], color_play_outer_prelight[2],
+                color_button[4], color_button_shadow, color_inner[2], color_inner_compressed[2];
+
+  /* Use the menu's style instead of that of the menuitem ('button' is a
+   * menuitem that is packed in a menu directly).  The menuitem's style
+   * can't be used due to a change in light-themes (lp #1130183).
+   * Menuitems now have a transparent background, which confuses
+   * GtkStyle.
+   *
+   * This is a workaround until this code gets refactored to use
+   * GtkStyleContext.
+   */
+  style = gtk_widget_get_style (gtk_widget_get_parent (button));
+
+  bg_color.r = style->bg[0].red/65535.0;
+  bg_color.g = style->bg[0].green/65535.0;
+  bg_color.b = style->bg[0].blue/65535.0;
+
+  bg_prelight.r = style->bg[GTK_STATE_PRELIGHT].red/65535.0;
+  bg_prelight.g = style->bg[GTK_STATE_PRELIGHT].green/65535.0;
+  bg_prelight.b = style->bg[GTK_STATE_PRELIGHT].blue/65535.0;
+
+  bg_selected.r = style->bg[GTK_STATE_SELECTED].red/65535.0;
+  bg_selected.g = style->bg[GTK_STATE_SELECTED].green/65535.0;
+  bg_selected.b = style->bg[GTK_STATE_SELECTED].blue/65535.0;
+
+  fg_color.r = style->fg[0].red/65535.0;
+  fg_color.g = style->fg[0].green/65535.0;
+  fg_color.b = style->fg[0].blue/65535.0;
+
+  _color_shade (&bg_color,    MIDDLE_START_SHADE, &color_middle[0]);
+  _color_shade (&bg_color,    MIDDLE_END_SHADE, &color_middle[1]);
+  _color_shade (&bg_prelight, MIDDLE_START_SHADE, &color_middle_prelight[0]);
+  _color_shade (&bg_prelight, MIDDLE_END_SHADE, &color_middle_prelight[1]);
+  _color_shade (&bg_color,    OUTER_START_SHADE, &color_outer[0]);
+  _color_shade (&bg_color,    OUTER_END_SHADE, &color_outer[1]);
+  _color_shade (&bg_prelight, OUTER_START_SHADE, &color_outer_prelight[0]);
+  _color_shade (&bg_prelight, OUTER_END_SHADE, &color_outer_prelight[1]);
+  _color_shade (&bg_color,    OUTER_PLAY_START_SHADE, &color_play_outer[0]);
+  _color_shade (&bg_color,    OUTER_PLAY_END_SHADE, &color_play_outer[1]);
+  _color_shade (&bg_prelight, OUTER_PLAY_START_SHADE, &color_play_outer_prelight[0]);
+  _color_shade (&bg_prelight, OUTER_PLAY_END_SHADE, &color_play_outer_prelight[1]);
+  _color_shade (&bg_color, INNER_START_SHADE, &color_inner[0]);
+  _color_shade (&bg_color, INNER_END_SHADE, &color_inner[1]);
+  _color_shade (&fg_color, BUTTON_START_SHADE, &color_button[0]);
+  _color_shade (&fg_color, BUTTON_END_SHADE, &color_button[1]);
+  _color_shade (&bg_color, BUTTON_SHADOW_SHADE, &color_button[2]);
+  _color_shade (&bg_color, SHADOW_BUTTON_SHADE, &color_button_shadow);
+  _color_shade (&bg_selected, 1.0, &color_button[3]);
+  _color_shade (&bg_color, INNER_COMPRESSED_START_SHADE, &color_inner_compressed[0]);
+  _color_shade (&bg_color, INNER_COMPRESSED_END_SHADE, &color_inner_compressed[1]);
+
+  double MIDDLE_END[]   = {color_middle[0].r, color_middle[0].g, color_middle[0].b, 1.0f};
+  double MIDDLE_START[] = {color_middle[1].r, color_middle[1].g, color_middle[1].b, 1.0f};
+  double MIDDLE_END_PRELIGHT[]   = {color_middle_prelight[0].r, color_middle_prelight[0].g, color_middle_prelight[0].b, 1.0f};
+  double MIDDLE_START_PRELIGHT[] = {color_middle_prelight[1].r, color_middle_prelight[1].g, color_middle_prelight[1].b, 1.0f};
+  double OUTER_END[]   = {color_outer[0].r, color_outer[0].g, color_outer[0].b, 1.0f};
+  double OUTER_START[] = {color_outer[1].r, color_outer[1].g, color_outer[1].b, 1.0f};
+  double OUTER_END_PRELIGHT[]   = {color_outer_prelight[0].r, color_outer_prelight[0].g, color_outer_prelight[0].b, 1.0f};
+  double OUTER_START_PRELIGHT[] = {color_outer_prelight[1].r, color_outer_prelight[1].g, color_outer_prelight[1].b, 1.0f};
+  double SHADOW_BUTTON[] = {color_button_shadow.r, color_button_shadow.g, color_button_shadow.b, 0.3f};
+  double OUTER_PLAY_END[] = {color_play_outer[0].r, color_play_outer[0].g, color_play_outer[0].b, 1.0f};
+  double OUTER_PLAY_START[] = {color_play_outer[1].r, color_play_outer[1].g, color_play_outer[1].b, 1.0f};
+  double OUTER_PLAY_END_PRELIGHT[] = {color_play_outer_prelight[0].r, color_play_outer_prelight[0].g, color_play_outer_prelight[0].b, 1.0f};
+  double OUTER_PLAY_START_PRELIGHT[] = {color_play_outer_prelight[1].r, color_play_outer_prelight[1].g, color_play_outer_prelight[1].b, 1.0f};
+  double BUTTON_END[] = {color_button[0].r, color_button[0].g, color_button[0].b, 1.0f};
+  double BUTTON_START[] = {color_button[1].r, color_button[1].g, color_button[1].b, 1.0f};
+  double BUTTON_SHADOW[] = {color_button[2].r, color_button[2].g, color_button[2].b, 0.75f};
+  double BUTTON_SHADOW_FOCUS[] = {color_button[3].r, color_button[3].g, color_button[3].b, 1.0f};
+  double INNER_COMPRESSED_END[] = {color_inner_compressed[1].r, color_inner_compressed[1].g, color_inner_compressed[1].b, 1.0f};
+  double INNER_COMPRESSED_START[] = {color_inner_compressed[0].r, color_inner_compressed[0].g, color_inner_compressed[0].b, 1.0f};
+
+
+  draw_gradient (cr,
+                 X,
+                 Y,
+                 RECT_WIDTH,
+                 OUTER_RADIUS,
+                 OUTER_START,
+                 OUTER_END);
+
+  draw_gradient (cr,
+                 X,
+                 Y + 1,
+                 RECT_WIDTH - 2,
+                 MIDDLE_RADIUS,
+                 MIDDLE_START,
+                 MIDDLE_END);
+
+  draw_gradient (cr,
+                 X,
+                 Y + 2,
+                 RECT_WIDTH - 4,
+                 MIDDLE_RADIUS,
+                 MIDDLE_START,
+                 MIDDLE_END);
+
+
+  if(item->cur_pushed_button == BUTTON_PREVIOUS)
+  {
+    draw_gradient (cr,
+                   X,
+                   Y,
+                   RECT_WIDTH/2,
+                   OUTER_RADIUS,
+                   OUTER_END,
+                   OUTER_START);
+
+    draw_gradient (cr,
+                   X,
+                   Y + 1,
+                   RECT_WIDTH/2,
+                   MIDDLE_RADIUS,
+                   INNER_COMPRESSED_START,
+                   INNER_COMPRESSED_END);
+
+    draw_gradient (cr,
+                   X,
+                   Y + 2,
+                   RECT_WIDTH/2,
+                   MIDDLE_RADIUS,
+                   INNER_COMPRESSED_START,
+                   INNER_COMPRESSED_END);
+  }
+  else if(item->cur_pushed_button == BUTTON_NEXT)
+  {
+    draw_gradient (cr,
+                   RECT_WIDTH / 2 + X,
+                   Y,
+                   RECT_WIDTH/2,
+                   OUTER_RADIUS,
+                   OUTER_END,
+                   OUTER_START);
+
+    draw_gradient (cr,
+                   RECT_WIDTH / 2 + X,
+                   Y + 1,
+                   (RECT_WIDTH - 4.5)/2,
+                   MIDDLE_RADIUS,
+                   INNER_COMPRESSED_START,
+                   INNER_COMPRESSED_END);
+
+    draw_gradient (cr,
+                   RECT_WIDTH / 2 + X,
+                   Y + 2,
+                   (RECT_WIDTH - 7)/2,
+                   MIDDLE_RADIUS,
+                   INNER_COMPRESSED_START,
+                   INNER_COMPRESSED_END);
+  }
+  else if (item->cur_hover_button == BUTTON_PREVIOUS)
+  {
+    draw_gradient (cr,
+                   X,
+                   Y,
+                   RECT_WIDTH/2,
+                   OUTER_RADIUS,
+                   OUTER_START_PRELIGHT,
+                   OUTER_END_PRELIGHT);
+
+    draw_gradient (cr,
+                   X,
+                   Y + 1,
+                   RECT_WIDTH/2,
+                   MIDDLE_RADIUS,
+                   MIDDLE_START_PRELIGHT,
+                   MIDDLE_END_PRELIGHT);
+
+    draw_gradient (cr,
+                   X,
+                   Y + 2,
+                   RECT_WIDTH/2,
+                   MIDDLE_RADIUS,
+                   MIDDLE_START_PRELIGHT,
+                   MIDDLE_END_PRELIGHT);
+  }
+  else if (item->cur_hover_button == BUTTON_NEXT)
+  {
+    draw_gradient (cr,
+                   RECT_WIDTH / 2 + X,
+                   Y,
+                   RECT_WIDTH/2,
+                   OUTER_RADIUS,
+                   OUTER_START_PRELIGHT,
+                   OUTER_END_PRELIGHT);
+
+    draw_gradient (cr,
+                   RECT_WIDTH / 2 + X,
+                   Y + 1,
+                   (RECT_WIDTH - 4.5)/2,
+                   MIDDLE_RADIUS,
+                   MIDDLE_START_PRELIGHT,
+                   MIDDLE_END_PRELIGHT);
+
+    draw_gradient (cr,
+                   RECT_WIDTH / 2 + X,
+                   Y + 2,
+                   (RECT_WIDTH - 7)/2,
+                   MIDDLE_RADIUS,
+                   MIDDLE_START_PRELIGHT,
+                   MIDDLE_END_PRELIGHT);
+  }
+
+  // play/pause shadow
+  if(item->cur_pushed_button != BUTTON_PLAYPAUSE)
+  {
+    cairo_save (cr);
+    cairo_rectangle (cr, X, Y, RECT_WIDTH, MIDDLE_RADIUS*2);
+    cairo_clip (cr);
+
+    draw_circle (cr,
+                 X + RECT_WIDTH / 2.0f - 2.0f * OUTER_RADIUS - 5.5f - 1.0f,
+                 Y - ((CIRCLE_RADIUS - OUTER_RADIUS)) - 1.0f,
+                 CIRCLE_RADIUS + 1.0f,
+                 SHADOW_BUTTON,
+                 SHADOW_BUTTON);
+
+    cairo_restore (cr);
+  }
+
+  // play/pause button
+  if(item->cur_pushed_button == BUTTON_PLAYPAUSE)
+  {
+    draw_circle (cr,
+                 X + RECT_WIDTH / 2.0f - 2.0f * OUTER_RADIUS - 5.5f,
+                 Y - ((CIRCLE_RADIUS - OUTER_RADIUS)) ,
+                 CIRCLE_RADIUS,
+                 OUTER_PLAY_END,
+                 OUTER_PLAY_START);
+
+    draw_circle (cr,
+                 X + RECT_WIDTH / 2.0f - 2.0f * OUTER_RADIUS - 5.5f + 1.25f,
+                 Y - ((CIRCLE_RADIUS - OUTER_RADIUS)) + 1.25f,
+                 CIRCLE_RADIUS - 1.25,
+                 INNER_COMPRESSED_START,
+                 INNER_COMPRESSED_END);
+  }
+  else if (item->cur_hover_button == BUTTON_PLAYPAUSE)
+  {
+    /* this subtle offset is to fix alpha borders, should be removed once this draw routine will be refactored */
+    draw_circle (cr,
+                 X + RECT_WIDTH / 2.0f - 2.0f * OUTER_RADIUS - 5.5f + 0.1,
+                 Y - ((CIRCLE_RADIUS - OUTER_RADIUS)) + 0.1,
+                 CIRCLE_RADIUS - 0.1,
+                 OUTER_PLAY_START_PRELIGHT,
+                 OUTER_PLAY_END_PRELIGHT);
+
+    draw_circle (cr,
+                 X + RECT_WIDTH / 2.0f - 2.0f * OUTER_RADIUS - 5.5f + 1.25f,
+                 Y - ((CIRCLE_RADIUS - OUTER_RADIUS)) + 1.25f,
+                 CIRCLE_RADIUS - 1.25,
+                 MIDDLE_START_PRELIGHT,
+                 MIDDLE_END_PRELIGHT);
+  }
+  else
+  {
+    draw_circle (cr,
+                 X + RECT_WIDTH / 2.0f - 2.0f * OUTER_RADIUS - 5.5f,
+                 Y - ((CIRCLE_RADIUS - OUTER_RADIUS)),
+                 CIRCLE_RADIUS,
+                 OUTER_PLAY_START,
+                 OUTER_PLAY_END);
+
+    draw_circle (cr,
+                 X + RECT_WIDTH / 2.0f - 2.0f * OUTER_RADIUS - 5.5f + 1.25f,
+                 Y - ((CIRCLE_RADIUS - OUTER_RADIUS)) + 1.25f,
+                 CIRCLE_RADIUS - 1.25,
+                 MIDDLE_START,
+                 MIDDLE_END);
+  }
+
+  // draw previous-button drop-shadow
+  if (item->cur_pushed_button == BUTTON_PREVIOUS && item->keyboard_activated )
+  {
+    _setup (&cr_surf, &surf, PREV_WIDTH+6, PREV_HEIGHT+6);
+    _mask_prev (cr_surf,
+                (PREV_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+                (PREV_HEIGHT - TRI_HEIGHT) / 2.0f,
+                TRI_WIDTH,
+                TRI_HEIGHT,
+                TRI_OFFSET);
+    _fill (cr_surf,
+           (PREV_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+           (PREV_HEIGHT - TRI_HEIGHT) / 2.0f,
+           (PREV_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+           (double) TRI_HEIGHT,
+           BUTTON_SHADOW_FOCUS,
+           BUTTON_SHADOW_FOCUS,
+           FALSE);
+    _surface_blur (surf, 3);
+    _finalize_repaint (cr, &cr_surf, &surf, PREV_X, PREV_Y + 0.5f, 3);
+  }
+  else
+  {
+    _setup (&cr_surf, &surf, PREV_WIDTH, PREV_HEIGHT);
+    _mask_prev (cr_surf,
+                (PREV_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+                (PREV_HEIGHT - TRI_HEIGHT) / 2.0f,
+                TRI_WIDTH,
+                TRI_HEIGHT,
+                TRI_OFFSET);
+    _fill (cr_surf,
+           (PREV_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+           (PREV_HEIGHT - TRI_HEIGHT) / 2.0f,
+           (PREV_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+           (double) TRI_HEIGHT,
+           BUTTON_SHADOW,
+           BUTTON_SHADOW,
+           FALSE);
+    _surface_blur (surf, 1);
+    _finalize (cr, &cr_surf, &surf, PREV_X, PREV_Y + 1.0f);
+  }
+
+  // draw previous-button
+  _setup (&cr_surf, &surf, PREV_WIDTH, PREV_HEIGHT);
+  _mask_prev (cr_surf,
+              (PREV_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+              (PREV_HEIGHT - TRI_HEIGHT) / 2.0f,
+              TRI_WIDTH,
+              TRI_HEIGHT,
+              TRI_OFFSET);
+  _fill (cr_surf,
+       (PREV_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+       (PREV_HEIGHT - TRI_HEIGHT) / 2.0f,
+       (PREV_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+       (double) TRI_HEIGHT,
+       BUTTON_START,
+       BUTTON_END,
+       FALSE);
+  _finalize (cr, &cr_surf, &surf, PREV_X, PREV_Y);
+
+  // draw next-button drop-shadow
+  if (item->cur_pushed_button == BUTTON_NEXT && item->keyboard_activated)
+  {
+    _setup (&cr_surf, &surf, NEXT_WIDTH+6, NEXT_HEIGHT+6);
+    _mask_next (cr_surf,
+                (NEXT_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+                (NEXT_HEIGHT - TRI_HEIGHT) / 2.0f,
+                TRI_WIDTH,
+                TRI_HEIGHT,
+                TRI_OFFSET);
+    _fill (cr_surf,
+           (NEXT_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+           (NEXT_HEIGHT - TRI_HEIGHT) / 2.0f,
+           (NEXT_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+           (double) TRI_HEIGHT,
+           BUTTON_SHADOW_FOCUS,
+           BUTTON_SHADOW_FOCUS,
+           FALSE);
+    _surface_blur (surf, 3);
+    _finalize_repaint (cr, &cr_surf, &surf, NEXT_X, NEXT_Y + 0.5f, 3);
+  }
+  else
+  {
+    _setup (&cr_surf, &surf, NEXT_WIDTH, NEXT_HEIGHT);
+    _mask_next (cr_surf,
+                (NEXT_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+                (NEXT_HEIGHT - TRI_HEIGHT) / 2.0f,
+                TRI_WIDTH,
+                TRI_HEIGHT,
+                TRI_OFFSET);
+    _fill (cr_surf,
+           (NEXT_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+           (NEXT_HEIGHT - TRI_HEIGHT) / 2.0f,
+           (NEXT_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+           (double) TRI_HEIGHT,
+           BUTTON_SHADOW,
+           BUTTON_SHADOW,
+           FALSE);
+    _surface_blur (surf, 1);
+    _finalize (cr, &cr_surf, &surf, NEXT_X, NEXT_Y + 1.0f);
+  }
+
+  // draw next-button
+  _setup (&cr_surf, &surf, NEXT_WIDTH, NEXT_HEIGHT);
+  _mask_next (cr_surf,
+              (NEXT_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+              (NEXT_HEIGHT - TRI_HEIGHT) / 2.0f,
+              TRI_WIDTH,
+              TRI_HEIGHT,
+              TRI_OFFSET);
+  _fill (cr_surf,
+         (NEXT_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+         (NEXT_HEIGHT - TRI_HEIGHT) / 2.0f,
+         (NEXT_WIDTH - (2.0f * TRI_WIDTH - TRI_OFFSET)) / 2.0f,
+         (double) TRI_HEIGHT,
+         BUTTON_START,
+         BUTTON_END,
+         FALSE);
+  _finalize (cr, &cr_surf, &surf, NEXT_X, NEXT_Y);
+
+  // draw pause-button drop-shadow
+  if (item->current_state == STATE_PLAYING)
+  {
+    if (item->has_focus &&
+        (item->cur_pushed_button == BUTTON_NONE || item->cur_pushed_button == BUTTON_PLAYPAUSE))
+    {
+      _setup (&cr_surf, &surf, PAUSE_WIDTH+6, PAUSE_HEIGHT+6);
+      _mask_pause (cr_surf,
+                   (PAUSE_WIDTH - (2.0f * BAR_WIDTH + BAR_OFFSET)) / 2.0f,
+                   (PAUSE_HEIGHT - BAR_HEIGHT) / 2.0f,
+                   BAR_WIDTH,
+                   BAR_HEIGHT - 2.0f * BAR_WIDTH,
+                   BAR_OFFSET);
+      _fill (cr_surf,
+             (PAUSE_WIDTH - (2.0f * BAR_WIDTH + BAR_OFFSET)) / 2.0f,
+             (PAUSE_HEIGHT - BAR_HEIGHT) / 2.0f,
+             (PAUSE_WIDTH - (2.0f * BAR_WIDTH + BAR_OFFSET)) / 2.0f,
+             (double) BAR_HEIGHT,
+             BUTTON_SHADOW_FOCUS,
+             BUTTON_SHADOW_FOCUS,
+             TRUE);
+      _surface_blur (surf, 3);
+      _finalize_repaint (cr, &cr_surf, &surf, PAUSE_X, PAUSE_Y + 0.5f, 3);
+    }
+    else
+    {
+      _setup (&cr_surf, &surf, PAUSE_WIDTH, PAUSE_HEIGHT);
+      _mask_pause (cr_surf,
+                   (PAUSE_WIDTH - (2.0f * BAR_WIDTH + BAR_OFFSET)) / 2.0f,
+                   (PAUSE_HEIGHT - BAR_HEIGHT) / 2.0f,
+                   BAR_WIDTH,
+                   BAR_HEIGHT - 2.0f * BAR_WIDTH,
+                   BAR_OFFSET);
+      _fill (cr_surf,
+             (PAUSE_WIDTH - (2.0f * BAR_WIDTH + BAR_OFFSET)) / 2.0f,
+             (PAUSE_HEIGHT - BAR_HEIGHT) / 2.0f,
+             (PAUSE_WIDTH - (2.0f * BAR_WIDTH + BAR_OFFSET)) / 2.0f,
+             (double) BAR_HEIGHT,
+             BUTTON_SHADOW,
+             BUTTON_SHADOW,
+             TRUE);
+      _surface_blur (surf, 1);
+      _finalize (cr, &cr_surf, &surf, PAUSE_X, PAUSE_Y + 1.0f);
+    }
+
+    // draw pause-button
+    _setup (&cr_surf, &surf, PAUSE_WIDTH, PAUSE_HEIGHT);
+    _mask_pause (cr_surf,
+                 (PAUSE_WIDTH - (2.0f * BAR_WIDTH + BAR_OFFSET)) / 2.0f,
+                 (PAUSE_HEIGHT - BAR_HEIGHT) / 2.0f,
+                 BAR_WIDTH,
+                 BAR_HEIGHT - 2.0f * BAR_WIDTH,
+                 BAR_OFFSET);
+    _fill (cr_surf,
+           (PAUSE_WIDTH - (2.0f * BAR_WIDTH + BAR_OFFSET)) / 2.0f,
+           (PAUSE_HEIGHT - BAR_HEIGHT) / 2.0f,
+           (PAUSE_WIDTH - (2.0f * BAR_WIDTH + BAR_OFFSET)) / 2.0f,
+           (double) BAR_HEIGHT,
+           BUTTON_START,
+           BUTTON_END,
+           TRUE);
+    _finalize (cr, &cr_surf, &surf, PAUSE_X, PAUSE_Y);
+  }
+  else if (item->current_state == STATE_PAUSED)
+  {
+    if (item->has_focus &&
+        (item->cur_pushed_button == BUTTON_NONE || item->cur_pushed_button == BUTTON_PLAYPAUSE))
+    {
+      _setup (&cr_surf, &surf, PLAY_WIDTH+6, PLAY_HEIGHT+6);
+      _mask_play (cr_surf,
+                  PLAY_PADDING,
+                  PLAY_PADDING,
+                  PLAY_WIDTH - (2*PLAY_PADDING),
+                  PLAY_HEIGHT - (2*PLAY_PADDING));
+      _fill (cr_surf,
+             PLAY_PADDING,
+             PLAY_PADDING,
+             PLAY_WIDTH - (2*PLAY_PADDING),
+             PLAY_HEIGHT - (2*PLAY_PADDING),
+             BUTTON_SHADOW_FOCUS,
+             BUTTON_SHADOW_FOCUS,
+             FALSE);
+      _surface_blur (surf, 3);
+      _finalize_repaint (cr, &cr_surf, &surf, PAUSE_X-0.5f, PAUSE_Y + 0.5f, 3);
+    }
+    else
+    {
+      _setup (&cr_surf, &surf, PLAY_WIDTH, PLAY_HEIGHT);
+      _mask_play (cr_surf,
+                  PLAY_PADDING,
+                  PLAY_PADDING,
+                  PLAY_WIDTH - (2*PLAY_PADDING),
+                  PLAY_HEIGHT - (2*PLAY_PADDING));
+      _fill (cr_surf,
+             PLAY_PADDING,
+             PLAY_PADDING,
+             PLAY_WIDTH - (2*PLAY_PADDING),
+             PLAY_HEIGHT - (2*PLAY_PADDING),
+             BUTTON_SHADOW,
+             BUTTON_SHADOW,
+             FALSE);
+      _surface_blur (surf, 1);
+      _finalize (cr, &cr_surf, &surf, PAUSE_X-0.75f, PAUSE_Y + 1.0f);
+    }
+
+    // draw play-button
+    _setup (&cr_surf, &surf, PLAY_WIDTH, PLAY_HEIGHT);
+    cairo_set_line_width (cr, 10.5);
+    cairo_set_line_cap(cr, CAIRO_LINE_CAP_ROUND);
+    cairo_set_line_join(cr, CAIRO_LINE_JOIN_ROUND);
+    _mask_play (cr_surf,
+                PLAY_PADDING,
+                PLAY_PADDING,
+                PLAY_WIDTH - (2*PLAY_PADDING),
+                PLAY_HEIGHT - (2*PLAY_PADDING));
+    _fill (cr_surf,
+           PLAY_PADDING,
+           PLAY_PADDING,
+           PLAY_WIDTH - (2*PLAY_PADDING),
+           PLAY_HEIGHT - (2*PLAY_PADDING),
+           BUTTON_START,
+           BUTTON_END,
+           FALSE);
+    _finalize (cr, &cr_surf, &surf, PAUSE_X-0.5f, PAUSE_Y);
+  }
+  else if (item->current_state == STATE_LAUNCHING)
+  {
+    // the spinner is not aligned, why? because the play button has odd width/height numbers
+    gtk_render_activity (gtk_widget_get_style_context (button), cr, 106, 6, 30, 30);
+  }
+  return FALSE;
+}