clap

commit 0d7fcf69887244c3d08058104510281b0a32ba7e
parent 0e83938ef834d0a0d88438dba4a8c1132a02db80
Author: Alexandre BIQUE <bique.alexandre@gmail.com>
Date:   Wed, 15 Sep 2021 12:41:28 +0200

add transport subscription mechanism for the proxy

Diffstat:
M
examples/plugins/gui/transport-proxy.cc
 | 
15
+++++++++++++--
M
examples/plugins/gui/transport-proxy.hh
 | 
27
++++++++++++++++-----------
M
examples/plugins/io/messages.hh
 | 
6
++++++

3 files changed, 35 insertions(+), 13 deletions(-)
diff --git a/examples/plugins/gui/transport-proxy.cc b/examples/plugins/gui/transport-proxy.cc
@@ -1,4 +1,6 @@
 #include "transport-proxy.hh"
+#include "../io/messages.hh"
+#include "application.hh"
 
 TransportProxy::TransportProxy(QObject *parent) : QObject(parent) {}
 
@@ -58,4 +60,14 @@ void TransportProxy::update(bool hasTransport, const clap_event_transport &trans
    update<int>(_timeSignatureDenominator,
                transport.tsig_denom,
                &TransportProxy::timeSignatureDenominatorChanged);
-}
-\ No newline at end of file
+}
+
+void TransportProxy::setIsSubscribed(bool value) {
+   if (value == _isSubscribed)
+      return;
+
+   _isSubscribed = value;
+   isSubscribedChanged();
+   clap::messages::SubscribeToTransportRequest rq{value};
+   Application::instance().remoteChannel().sendRequestAsync(rq);
+}
diff --git a/examples/plugins/gui/transport-proxy.hh b/examples/plugins/gui/transport-proxy.hh
@@ -7,6 +7,7 @@
 class TransportProxy : public QObject {
    Q_OBJECT
    Q_PROPERTY(bool hasTransport READ hasTransport NOTIFY hasTransportChanged)
+   Q_PROPERTY(bool isSubscribed READ isSubscribed WRITE setIsSubscribed NOTIFY isSubscribedChanged)
 
    Q_PROPERTY(bool hasBeatsTimeline READ hasBeatsTimeline NOTIFY hasBeatsTimelineChanged)
    Q_PROPERTY(bool hasSecondsTimeline READ hasSecondsTimeline NOTIFY hasSecondsTimelineChanged)
@@ -40,6 +41,9 @@ public:
 
    void update(bool hasTransport, const clap_event_transport &transport);
 
+   [[nodiscard]] bool isSubscribed() const noexcept { return _isSubscribed; }
+   void setIsSubscribed(bool value);
+
    [[nodiscard]] bool hasTransport() const noexcept { return _hasTransport; }
 
    [[nodiscard]] bool hasBeatsTimeline() const noexcept { return _hasBeatsTimeline; }
@@ -83,6 +87,8 @@ public:
 signals:
    void updated();
 
+   void isSubscribedChanged();
+
    void hasTransportChanged();
 
    void hasBeatsTimelineChanged();
@@ -110,18 +116,17 @@ signals:
    void timeSignatureDenominatorChanged();
 
 private:
+   using NotifyType = void (TransportProxy::*)();
+
+   template <typename T>
+   void update(T &attr, T value, NotifyType notify) {
+      if (value == attr)
+         return;
+      attr = value;
+      (this->*notify)();
+   }
 
-    using NotifyType = void (TransportProxy::*)();
-
-    template <typename T>
-    void update(T& attr, T value, NotifyType notify)
-    {
-        if (value == attr)
-            return;
-        attr = value;
-        (this->*notify)();
-    }
-
+   bool _isSubscribed = false;
    bool _hasTransport = false;
 
    bool _hasBeatsTimeline = false;
diff --git a/examples/plugins/io/messages.hh b/examples/plugins/io/messages.hh
@@ -12,6 +12,7 @@ namespace clap::messages {
 
       // GUI->DSP
       kAdjustRequest,
+      kSubscribeToTransportRequest,
 
       // Gui, Host->Plugin
       kSetScaleRequest,
@@ -56,6 +57,11 @@ namespace clap::messages {
       clap_event_transport transport;
    };
 
+   struct SubscribeToTransportRequest final {
+      static const constexpr Type type = kSubscribeToTransportRequest;
+      bool isSubscribed;
+   };
+
    struct ParameterValueRequest final {
       static const constexpr Type type = kParameterValueRequest;
       clap_id paramId;