[UI+Backend] Improved time string events and fixed niconico icons.

I made creating time string way more efficient by saving old values and comparing
them because they can change multiple times per second but the duration string only
needs to update once per second and it also needs to always update when speed changes.
TODO: Add speed event to allow speed to be updated when paused.

src/DirectMpvPlayerBackend.cpp

@@ -471,13 +471,31 @@ DirectMpvPlayerBackend::on_mpv_events()
 }
 
 void
-DirectMpvPlayerBackend::updateDurationString()
+DirectMpvPlayerBackend::updateDurationString(int numTime)
 {
-  emit durationStringChanged(
+  QVariant speed = getProperty("speed");
-    QString("%1  / %2 (%3x)")
+  QMetaMethod metaMethod = sender()->metaObject()->method(senderSignalIndex());
-      .arg(Utils::createTimestamp(getProperty("time-pos").toInt()),
+  if (metaMethod.name() == "positionChanged") {
-           totalDurationString,
+    if (speed != lastSpeed) {
-           getProperty("speed").toString()));
+      lastSpeed = speed.toDouble();
+    } else {
+      if (numTime == lastTime) {
+        return;
+      }
+    }
+    lastTime = numTime;
+    lastPositionString = Utils::createTimestamp(lastTime);
+  } else if (metaMethod.name() == "durationChanged") {
+    totalDurationString = Utils::createTimestamp(numTime);
+  }
+  QString durationString;
+  durationString += lastPositionString;
+  durationString += " / ";
+  durationString += totalDurationString;
+  if (lastSpeed != 1) {
+    durationString += " (" + speed.toString() + "x)";
+  }
+  emit durationStringChanged(durationString);
 }
 
 void
@@ -518,13 +536,12 @@ DirectMpvPlayerBackend::handle_mpv_event(mpv_event* event)
         if (prop->format == MPV_FORMAT_DOUBLE) {
           double time = *(double*)prop->data;
           emit positionChanged(time);
-          Utils::ResetScreensaver();
         }
       } else if (strcmp(prop->name, "duration") == 0) {
         if (prop->format == MPV_FORMAT_DOUBLE) {
           double time = *(double*)prop->data;
-          totalDurationString = Utils::createTimestamp(time);
           emit durationChanged(time);
+          Utils::ResetScreensaver();
         }
       } else if (strcmp(prop->name, "mute") == 0 ||
                  strcmp(prop->name, "volume") == 0) {

src/DirectMpvPlayerBackend.h

@@ -42,7 +42,10 @@ class DirectMpvPlayerBackend
   mpv_opengl_cb_context* mpv_gl;
   MpvRenderer* renderer;
   bool onTop = false;
+  int lastTime = 0;
+  double lastSpeed = 0;
   QString totalDurationString;
+  QString lastPositionString;
 
 public:
   static void on_update(void* ctx);
@@ -92,7 +95,7 @@ signals:
 private slots:
   void doUpdate();
   void on_mpv_events();
-  void updateDurationString();
+  void updateDurationString(int numTime);
   void handleWindowChanged(QQuickWindow* win);
 
 private:

src/MpvPlayerBackend.cpp

@@ -449,13 +449,31 @@ MpvPlayerBackend::on_mpv_events()
 }
 
 void
-MpvPlayerBackend::updateDurationString()
+MpvPlayerBackend::updateDurationString(int numTime)
 {
-  emit durationStringChanged(
+  QVariant speed = getProperty("speed");
-    QString("%1  / %2 (%3x)")
+  QMetaMethod metaMethod = sender()->metaObject()->method(senderSignalIndex());
-      .arg(Utils::createTimestamp(getProperty("time-pos").toInt()),
+  if (metaMethod.name() == "positionChanged") {
-           totalDurationString,
+    if (speed != lastSpeed) {
-           getProperty("speed").toString()));
+      lastSpeed = speed.toDouble();
+    } else {
+      if (numTime == lastTime) {
+        return;
+      }
+    }
+    lastTime = numTime;
+    lastPositionString = Utils::createTimestamp(lastTime);
+  } else if (metaMethod.name() == "durationChanged") {
+    totalDurationString = Utils::createTimestamp(numTime);
+  }
+  QString durationString;
+  durationString += lastPositionString;
+  durationString += " / ";
+  durationString += totalDurationString;
+  if (lastSpeed != 1) {
+    durationString += " (" + speed.toString() + "x)";
+  }
+  emit durationStringChanged(durationString);
 }
 
 void
@@ -496,13 +514,12 @@ MpvPlayerBackend::handle_mpv_event(mpv_event* event)
         if (prop->format == MPV_FORMAT_DOUBLE) {
           double time = *(double*)prop->data;
           emit positionChanged(time);
-          Utils::ResetScreensaver();
         }
       } else if (strcmp(prop->name, "duration") == 0) {
         if (prop->format == MPV_FORMAT_DOUBLE) {
           double time = *(double*)prop->data;
-          totalDurationString = Utils::createTimestamp(time);
           emit durationChanged(time);
+          Utils::ResetScreensaver();
         }
       } else if (strcmp(prop->name, "mute") == 0 ||
                  strcmp(prop->name, "volume") == 0) {

src/MpvPlayerBackend.h

@@ -27,7 +27,10 @@ class MpvPlayerBackend
   mpv_handle* mpv;
   mpv_render_context* mpv_gl;
   bool onTop = false;
+  int lastTime = 0;
+  double lastSpeed = 0;
   QString totalDurationString;
+  QString lastPositionString;
 
   friend class MpvRenderer;
 
@@ -77,7 +80,7 @@ signals:
 private slots:
   void doUpdate();
   void on_mpv_events();
-  void updateDurationString();
+  void updateDurationString(int numTime);
 
 private:
   void handle_mpv_event(mpv_event* event);

src/qml/icons/Niconico/backward.svg

@@ -1 +1,2 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48"><path d="M24 10V2L14 12l10 10v-8c6.6 0 12 5.4 12 12s-5.4 12-12 12-12-5.4-12-12H8c0 8.8 7.2 16 16 16s16-7.2 16-16-7.2-16-16-16zm-2.2 22h-1.7v-6.5l-2 .6v-1.4l3.5-1.3h.2V32zm8.5-3.5c0 .6-.1 1.2-.2 1.6s-.3.8-.6 1.1-.6.5-.9.7-.7.2-1.2.2-.8-.1-1.2-.2-.7-.4-.9-.7-.5-.7-.6-1.1-.2-1-.2-1.6V27c0-.6.1-1.2.2-1.6s.3-.8.6-1.1.6-.5.9-.7.7-.2 1.2-.2.8.1 1.2.2.7.4.9.7.5.7.6 1.1.2 1 .2 1.6v1.5zm-1.6-1.7c0-.4 0-.7-.1-1s-.1-.5-.2-.6-.2-.3-.4-.3-.3-.1-.5-.1-.4 0-.5.1-.3.2-.4.3-.2.4-.2.6-.1.6-.1 1v1.9c0 .4 0 .7.1 1s.1.5.2.6.2.3.4.3.3.1.5.1.4 0 .5-.1.3-.2.4-.3.2-.4.2-.6.1-.6.1-1v-1.9z"/></svg>
+<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" fill-rule="evenodd" clip-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="1.4" class="PlayerSeekBackwardButton-icon"><path d="M18.3 29A38 38 0 1 1 23 76.7a4 4 0 0 0-5.7 0l-2.8 2.8a4 4 0 0 0 0 5.7A50 50 0 1 0 8 22.8l-2-1.2a4 4 0 0 0-6 3.5v18.2a4 4 0 0 0 6 3.5L21.7 38a4 4 0 0 0 .2-7L18.3 29zM42 66a2 2 0 0 1-2 2h-4a2 2 0 0 1-2-2V40h-2a2 2 0 0 1-2-2v-4c0-1.1.9-2 2-2h8a2 2 0 0 1 2 2v32zm32 0a2 2 0 0 1-2 2H52a2 2 0 0 1-2-2V34c0-1.1.9-2 2-2h20a2 2 0 0 1 2 2v32zm-8-26h-8v20h8V40z"></path></svg>
+

src/qml/icons/Niconico/forward.svg

@@ -1 +1 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="48" height="48"><path d="M8 26c0 8.8 7.2 16 16 16s16-7.2 16-16h-4c0 6.6-5.4 12-12 12s-12-5.4-12-12 5.4-12 12-12v8l10-10L24 2v8c-8.8 0-16 7.2-16 16zm13.7 6H20v-6.5l-2 .6v-1.4l3.5-1.3h.2V32zm8.5-3.5c0 .6-.1 1.2-.2 1.6s-.3.8-.6 1.1-.6.5-.9.7-.7.2-1.2.2-.8-.1-1.2-.2-.7-.4-.9-.7-.5-.7-.6-1.1-.2-1-.2-1.6V27c0-.6.1-1.2.2-1.6s.3-.8.6-1.1.6-.5.9-.7.7-.2 1.2-.2.8.1 1.2.2.7.4.9.7.5.7.6 1.1.2 1 .2 1.6v1.5zm-1.7-1.7c0-.4 0-.7-.1-1s-.1-.5-.2-.6-.2-.3-.4-.3-.3-.1-.5-.1-.4 0-.5.1-.3.2-.4.3-.2.4-.2.6-.1.6-.1 1v1.9c0 .4 0 .7.1 1s.1.5.2.6.2.3.4.3.3.1.5.1.4 0 .5-.1.3-.2.4-.3.2-.4.2-.6.1-.6.1-1v-1.9z"/></svg>
+<svg viewBox="0 0 100 100" xmlns="http://www.w3.org/2000/svg" fill-rule="evenodd" clip-rule="evenodd" stroke-linejoin="round" stroke-miterlimit="1.4" class="PlayerSeekForwardButton-icon"><path d="M81.7 29A38 38 0 1 0 77 76.7a4 4 0 0 1 5.7 0l2.8 2.8a4 4 0 0 1 0 5.7A50 50 0 1 1 92 22.8l2-1.2a4 4 0 0 1 6 3.5v18.2a4 4 0 0 1-6 3.5L78.3 38a4 4 0 0 1-.2-7l3.7-2.1zM37 66a2 2 0 0 1-2 2h-4a2 2 0 0 1-2-2V40h-2a2 2 0 0 1-2-2v-4c0-1.1.9-2 2-2h8a2 2 0 0 1 2 2v32zm32 0a2 2 0 0 1-2 2H47a2 2 0 0 1-2-2V34c0-1.1.9-2 2-2h20a2 2 0 0 1 2 2v32zm-8-26h-8v20h8V40z"></path></svg>