NxWM::CMediaPlayer: Add a CLabel that show the current fast forward/rewind speed

nxwm/include/cmediaplayer.hxx

@@ -51,6 +51,7 @@
 #include "cnxfont.hxx"
 #include "cimage.hxx"
 #include "cstickyimage.hxx"
+#include "clabel.hxx"
 #include "clistbox.hxx"
 #include "clistboxdataitem.hxx"
 #include "cglyphsliderhorizontal.hxx"
@@ -159,7 +160,7 @@ namespace NxWM
 #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
     uint8_t                  m_level;      /**< Current volume level, range 0-100 */
 #endif
-#ifndef CONFIG_AUDIO_EXCLUDE_FFORWARD
+#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND)
     uint8_t                  m_subSample;  /**< Current FFFORWARD subsampling index */
 #endif
 
@@ -187,6 +188,9 @@ namespace NxWM
     NXWidgets::CStickyImage *m_rewind;     /**< Rewind control */
     NXWidgets::CStickyImage *m_fforward;   /**< Fast forward control */
     NXWidgets::CGlyphSliderHorizontal *m_volume; /**< Volume control */
+#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND)
+    NXWidgets::CLabel       *m_speed;      /**< FForward/rewind speed */
+#endif
 
     /**
      * Bitmaps
@@ -300,6 +304,15 @@ namespace NxWM
 
     inline void checkFileSelection(void);
 
+#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND)
+    /**
+     * Update fast forward/rewind speed indicator.  Called on each state
+     * change and after each change in the speed of motion.
+     */
+
+    void updateMotionIndicator(void);
+#endif
+
     /**
      * Handle a widget action event.  For this application, that means image
      * pre-release events.

nxwm/src/cmediaplayer.cxx

@@ -125,6 +125,9 @@ CMediaPlayer::CMediaPlayer(CTaskbar *taskbar, CApplicationWindow *window)
   m_rewind         = (NXWidgets::CStickyImage *)0;
   m_fforward       = (NXWidgets::CStickyImage *)0;
   m_volume         = (NXWidgets::CGlyphSliderHorizontal *)0;
+#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND)
+  m_speed          = (NXWidgets::CLabel       *)0;
+#endif
 
   // Nullify bitmaps that will be instantiated when the window is started
 
@@ -144,7 +147,7 @@ CMediaPlayer::CMediaPlayer(CTaskbar *taskbar, CApplicationWindow *window)
 #ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
   m_level          = 0;
 #endif
-#ifndef CONFIG_AUDIO_EXCLUDE_FFORWARD
+#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND)
   m_subSample      = 0;
 #endif
   m_fileReady      = false;
@@ -208,6 +211,13 @@ CMediaPlayer::~CMediaPlayer(void)
       delete m_volume;
     }
 
+#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND)
+  if (m_speed)
+    {
+      delete m_speed;
+    }
+#endif
+
   // Destroy bitmaps
 
   if (m_playBitmap)
@@ -332,6 +342,9 @@ void CMediaPlayer::stop(void)
   m_rewind->disableDrawing();
   m_fforward->disableDrawing();
   m_volume->disableDrawing();
+#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND)
+  m_speed->disableDrawing();
+#endif
 }
 
 /**
@@ -1011,6 +1024,32 @@ bool CMediaPlayer::createPlayer(void)
   m_volume->addWidgetEventHandler(this);
 #endif
 
+#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND)
+  // Create the speed of motion indicator
+  // The bounding box is determined by the font size
+
+  nxgl_coord_t motionW = (nxgl_coord_t)(3 * m_font->getMaxWidth());
+  nxgl_coord_t motionH = (nxgl_coord_t)(m_font->getHeight());
+
+  // Horizontal position: aligned with the right size of volume slider
+  // Vertical postion: same as the motion controls
+
+  m_speed = new NXWidgets::CLabel(control,
+                                  volumeControlX + volumeControlW - motionW,
+                                  controlTop + (controlH - motionH) / 2,
+                                  motionW, motionH, "");
+
+  // Configure the speed indicator
+
+  m_speed->disableDrawing();
+  m_speed->setBorderless(true);
+  m_speed->setRaisesEvents(false);
+  m_speed->setFont(m_font);
+  m_speed->setTextAlignmentHoriz(NXWidgets::CLabel::TEXT_ALIGNMENT_HORIZ_RIGHT);
+  m_speed->setTextAlignmentVert(NXWidgets::CLabel::TEXT_ALIGNMENT_VERT_CENTER);
+  m_speed->hide();
+#endif
+
   // Make sure that all widgets are setup for the STOPPED state.  Among other this,
   // this will enable drawing in the play widget (only)
 
@@ -1098,6 +1137,11 @@ void CMediaPlayer::redrawWidgets(void)
   m_fforward->enableDrawing();
   m_fforward->redraw();
 
+#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND)
+  m_speed->enableDrawing();
+  m_speed->redraw();
+#endif
+
   m_volume->enableDrawing();
   m_volume->redraw();
 }
@@ -1147,9 +1191,9 @@ void CMediaPlayer::setMediaPlayerState(enum EMediaPlayerState state)
       m_rewind->disable();
       m_rewind->setStuckSelection(false);
 
+#ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
       // Volume slider is available
 
-#ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
       m_volume->enable();
 #endif
       break;
@@ -1182,9 +1226,9 @@ void CMediaPlayer::setMediaPlayerState(enum EMediaPlayerState state)
       m_rewind->disable();
       m_rewind->setStuckSelection(false);
 
+#ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
       // Volume slider is available
 
-#ifndef CONFIG_AUDIO_EXCLUDE_VOLUME
       m_volume->enable();
 #endif
       break;
@@ -1353,6 +1397,12 @@ void CMediaPlayer::setMediaPlayerState(enum EMediaPlayerState state)
       break;
     }
 
+#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND)
+  // Update the motion indicator for the new state
+
+  updateMotionIndicator();
+#endif
+
   // Re-enable drawing and redraw all widgets for the new state
 
   redrawWidgets();
@@ -1470,6 +1520,57 @@ void CMediaPlayer::checkFileSelection(void)
     }
 }
 
+/**
+ * Update fast forward/rewind speed indicator.  Called on each state change
+ * and after each change in the speed of motion.
+ */
+
+#if !defined(CONFIG_AUDIO_EXCLUDE_FFORWARD) || !defined(CONFIG_AUDIO_EXCLUDE_REWIND)
+void CMediaPlayer::updateMotionIndicator(void)
+{
+  m_speed->disableDrawing();
+  if (m_state == MPLAYER_FFORWARD || m_state == MPLAYER_FREWIND)
+    {
+      // Set the new speed string
+
+      char buffer[8];
+      (void)std::snprintf(buffer, 8, "%dX", g_motionSteps[m_subSample]);
+
+      NXWidgets::CNxString speed(buffer);
+      m_speed->setText(speed);
+
+      // Show (un-hide) the speed indicator
+
+      m_speed->show();
+
+      // Redraw the speed indicator
+
+      m_speed->enableDrawing();
+      m_speed->redraw();
+    }
+
+  // No, then the speed indicator should be hidden.  But don't redraw if
+  // it is already hidden
+
+  else if (!m_speed->isHidden())
+    {
+      // Clear the new speed string
+
+      NXWidgets::CNxString nospeed("");
+      m_speed->setText(nospeed);
+
+      // Redraw the empty speed indicator
+
+      m_speed->enableDrawing();
+      m_speed->redraw();
+
+      // Hide the speed indicator
+
+      m_speed->hide();
+    }
+}
+#endif
+
 /**
  * Handle a widget action event.  For this application, that means image
  * pre-release events.
@@ -1528,10 +1629,10 @@ void CMediaPlayer::handleActionEvent(const NXWidgets::CWidgetEventArgs &e)
                 {
                   dbg("ERROR: nxplayer_rewind failed: %d\n", ret);
                 }
-              else
+
-                {
+              // Update the speed indicator
-                  setMediaPlayerState(m_prevState);
+
-                }
+              updateMotionIndicator();
             }
 
           // We should not be in a STOPPED state here, but let's check anyway
@@ -1578,6 +1679,10 @@ void CMediaPlayer::handleActionEvent(const NXWidgets::CWidgetEventArgs &e)
                 {
                   dbg("ERROR: nxplayer_fforward failed: %d\n", ret);
                 }
+
+              // Update the speed indicator
+
+              updateMotionIndicator();
             }
 
           // We should not be in a STOPPED state here, but let's check anyway