[ui] WIP of LED visualizer

examples/Advanced/UI/LEDView.hpp

@@ -0,0 +1,170 @@
+#pragma once
+
+/* SPDX-License-Identifier: GPL-3.0-or-later */
+
+#include <Effect/EffectLayer.hpp>
+#include <Effect/EffectLayout.hpp>
+#include <Process/Process.hpp>
+#include <avnd/concepts/painter.hpp>
+#include <avnd/concepts/processor.hpp>
+#include <avnd/wrappers/controls.hpp>
+#include <halp/controls.hpp>
+#include <halp/meta.hpp>
+#include <ossia/network/value/format_value.hpp>
+#include <score/model/Skin.hpp>
+
+#include <QPainter>
+namespace ao
+{
+#if 0
+struct led_item
+{
+  using item_type = custom_anim;
+  static constexpr double width() { return 100.; }
+  static constexpr double height() { return 10.; }
+
+  void paint(avnd::painter auto ctx)
+  {
+    constexpr double side = 8.;
+
+    // ctx.translate(10, 10);
+    for(int i = 0; i < values.size() / 3; i += 3)
+    {
+      ctx.translate(0, 0);
+      ctx.begin_path();
+
+      ctx.set_stroke_color({.r = 0, .g = 0, .b = 0, .a = 255});
+      ctx.set_fill_color(
+          {.r = uint8_t(values[i]),
+           .g = uint8_t(values[i + 1]),
+           .b = uint8_t(values[i + 2]),
+           .a = 255});
+      ctx.draw_rect(-2, -8, side, side);
+      ctx.fill();
+      ctx.stroke();
+    }
+
+    ctx.update();
+  }
+
+  std::vector<int> values;
+};
+#endif
+
+struct LEDView
+{
+  halp_meta(name, "LED View")
+  halp_meta(c_name, "led_view")
+  halp_meta(category, "Monitoring")
+  halp_meta(manual_url, "https://ossia.io/score-docs/processes/led-view.html")
+  halp_meta(author, "Jean-Michaël Celerier")
+  halp_meta(description, "Visualizes an array of [r,g,b,r,g,b,...] pixels")
+  halp_meta(uuid, "C618774D-086F-4888-8404-23B6E59440F8")
+  halp_flag(fully_custom_item);
+
+  struct ins
+  {
+    struct : halp::val_port<"RGB", std::vector<int>>
+    {
+      enum widget
+      {
+        control
+      };
+    } values;
+  } inputs;
+
+#if 0
+  struct
+  {
+  } outputs;
+
+  void operator()() { send_message(inputs.values); }
+
+  std::function<void(std::vector<int>)> send_message;
+  struct ui
+  {
+    halp_meta(name, "Main")
+    halp_meta(layout, halp::layouts::container)
+    halp_meta(width, 100)
+    halp_meta(height, 20)
+
+    halp::custom_actions_item<led_item> anim{.x = 0, .y = 0};
+    struct bus
+    {
+      static void process_message(ui& self, std::vector<int> msg)
+      {
+        self.anim.values.assign(msg.begin(), msg.end());
+      }
+    };
+  };
+#endif
+
+  struct Layer : public Process::EffectLayerView
+  {
+  public:
+    std::vector<QColor> m_pixels;
+
+    Layer(
+        const Process::ProcessModel& process, const Process::Context& doc,
+        QGraphicsItem* parent)
+        : Process::EffectLayerView{parent}
+    {
+      setAcceptedMouseButtons({});
+
+      const Process::PortFactoryList& portFactory
+          = doc.app.interfaces<Process::PortFactoryList>();
+
+      auto inl = static_cast<Process::ControlInlet*>(process.inlets().front());
+
+      auto fact = portFactory.get(inl->concreteKey());
+      auto port = fact->makePortItem(*inl, doc, this, this);
+      port->setPos(0, 5);
+
+      connect(
+          inl, &Process::ControlInlet::executionValueChanged, this,
+          [this](const ossia::value& v) {
+        if(auto list = v.target<std::vector<ossia::value>>())
+        {
+          m_pixels.clear();
+          auto& vec = *list;
+          for(int i = 0, N = vec.size() - 2; i < N; i += 3)
+          {
+            const auto r = std::clamp(ossia::convert<int>(vec[i]), 0, 255);
+            const auto g = std::clamp(ossia::convert<int>(vec[i + 1]), 0, 255);
+            const auto b = std::clamp(ossia::convert<int>(vec[i + 2]), 0, 255);
+            m_pixels.push_back(QColor::fromRgb(r, g, b));
+          }
+          update();
+        }
+      });
+    }
+
+    void reset()
+    {
+      m_pixels.clear();
+      update();
+    }
+
+    void paint_impl(QPainter* p) const override
+    {
+      static constexpr auto side = 10;
+      if(m_pixels.empty())
+        return;
+
+      int xpos = 0;
+      int ypos = 0;
+      p->setPen(Qt::NoPen);
+      for(QColor pix : m_pixels)
+      {
+        p->fillRect(QRectF(xpos, ypos, side, side), pix);
+        xpos += side + 1;
+        if(xpos + side > this->boundingRect().width())
+        {
+          xpos = 0;
+          ypos += side + 1;
+        }
+      }
+    }
+  };
+};
+}