git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce
subrepo: subdir: "deps/juce" merged: "b13f9084e" upstream: origin: "https://github.com/essej/JUCE.git" branch: "sono6good" commit: "b13f9084e" git-subrepo: version: "0.4.3" origin: "https://github.com/ingydotnet/git-subrepo.git" commit: "2f68596"
This commit is contained in:
essej
224
deps/juce/extras/NetworkGraphicsDemo/Source/SlaveComponent.h
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deps/juce/extras/NetworkGraphicsDemo/Source/SlaveComponent.h
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/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2020 - Raw Material Software Limited
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 6 End-User License
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Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).
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End User License Agreement: www.juce.com/juce-6-licence
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Privacy Policy: www.juce.com/juce-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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/**
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This component runs in a slave process, draws the part of the canvas that this
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particular client covers, and updates itself when messages arrive from the master
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containing new canvas states.
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*/
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class SlaveCanvasComponent : public Component,
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private OSCSender,
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private OSCReceiver,
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private OSCReceiver::Listener<OSCReceiver::RealtimeCallback>,
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private AsyncUpdater,
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private Timer
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{
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public:
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SlaveCanvasComponent (PropertiesFile& p, int windowIndex) : properties (p)
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{
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{
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String uuidPropName ("UUID" + String (windowIndex));
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clientName = properties.getValue (uuidPropName);
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if (clientName.isEmpty())
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{
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clientName = "CLIENT_" + String (Random().nextInt (10000)).toUpperCase();
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properties.setValue (uuidPropName, clientName);
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}
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}
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setOpaque (true);
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setSize (1500, 900);
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if (! OSCSender::connect (getBroadcastIPAddress(), clientPortNumber))
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error = "Client app OSC sender: network connection error.";
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if (! OSCReceiver::connect (masterPortNumber))
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error = "Client app OSC receiver: network connection error.";
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OSCReceiver::addListener (this);
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timerCallback();
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startTimer (2000);
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}
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~SlaveCanvasComponent() override
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{
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OSCReceiver::removeListener (this);
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}
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private:
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void mouseDrag (const MouseEvent& e) override
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{
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auto clientArea = getAreaInGlobalSpace();
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if (! clientArea.isEmpty())
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{
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OSCMessage message (userInputOSCAddress);
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message.addString (clientName);
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message.addFloat32 (e.position.x * clientArea.getWidth() / (float) getWidth() + clientArea.getX());
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message.addFloat32 (e.position.y * clientArea.getHeight() / (float) getHeight() + clientArea.getY());
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send (message);
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}
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}
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//==============================================================================
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void oscMessageReceived (const OSCMessage& message) override
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{
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auto address = message.getAddressPattern();
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if (address.matches (canvasStateOSCAddress))
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canvasStateOSCMessageReceived (message);
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}
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struct NewStateMessage : public Message
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{
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NewStateMessage (const MemoryBlock& d) : data (d) {}
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MemoryBlock data;
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};
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void canvasStateOSCMessageReceived (const OSCMessage& message)
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{
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if (message.isEmpty() || ! message[0].isBlob())
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return;
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if (packetiser.appendIncomingBlock (message[0].getBlob()))
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{
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const ScopedLock sl (canvasLock);
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MemoryBlock newCanvasData;
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if (packetiser.reassemble (newCanvasData))
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{
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MemoryInputStream i (newCanvasData.getData(), newCanvasData.getSize(), false);
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canvas2.load (i);
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triggerAsyncUpdate();
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}
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}
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}
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//==============================================================================
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String getMachineInfoToDisplay() const
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{
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auto* display = Desktop::getInstance().getDisplays().getDisplayForPoint (getScreenBounds().getCentre());
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return getOSName() + " " + String (display->dpi) + " " + String (display->scale);
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}
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static String getOSName()
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{
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#if JUCE_MAC
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return "Mac OSX";
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#elif JUCE_ANDROID
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return "Android";
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#elif JUCE_IOS
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return "iOS";
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#elif JUCE_WINDOWS
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return "Windows";
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#elif JUCE_LINUX
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return "Linux";
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#elif JUCE_BSD
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return "BSD";
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#endif
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}
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void paint (Graphics& g) override
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{
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g.fillAll (canvas.backgroundColour);
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auto clientArea = getAreaInGlobalSpace();
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if (clientArea.isEmpty())
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{
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g.setColour (Colours::red.withAlpha (0.5f));
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g.setFont (20.0f);
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g.drawText ("Not Connected", getLocalBounds(), Justification::centred, false);
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return;
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}
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canvas.draw (g, getLocalBounds().toFloat(), clientArea);
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g.setFont (Font (34.0f));
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g.setColour (Colours::white.withAlpha (0.6f));
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g.drawText (getMachineInfoToDisplay(),
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getLocalBounds().reduced (10).removeFromBottom (20),
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Justification::centredRight, true);
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if (error.isNotEmpty())
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{
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g.setColour (Colours::red);
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g.drawText (error, getLocalBounds().reduced (10).removeFromBottom (80),
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Justification::centredRight, true);
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}
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}
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Rectangle<float> getAreaInGlobalSpace() const
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{
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if (auto client = canvas.findClient (clientName))
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{
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auto screenBounds = getScreenBounds();
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auto* display = Desktop::getInstance().getDisplays().getDisplayForPoint (screenBounds.getCentre());
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return ((screenBounds - display->userArea.getCentre()).toFloat() / (client->scaleFactor * display->dpi / display->scale)) + client->centre;
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}
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return {};
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}
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Rectangle<float> getScreenAreaInGlobalSpace() const
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{
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if (auto client = canvas.findClient (clientName))
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{
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auto* display = Desktop::getInstance().getDisplays().getDisplayForPoint (getScreenBounds().getCentre());
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return (display->userArea.toFloat() / (client->scaleFactor * display->dpi / display->scale)).withCentre (client->centre);
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}
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return {};
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}
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void timerCallback() override
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{
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send (newClientOSCAddress, clientName + ":" + IPAddress::getLocalAddress().toString()
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+ ":" + getScreenAreaInGlobalSpace().toString());
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}
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void handleAsyncUpdate() override
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{
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const ScopedLock sl (canvasLock);
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canvas.swapWith (canvas2);
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repaint();
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}
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SharedCanvasDescription canvas, canvas2;
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PropertiesFile& properties;
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String clientName, error;
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CriticalSection canvasLock;
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BlockPacketiser packetiser;
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JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (SlaveCanvasComponent)
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};
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