1
0
Fork 0
mirror of https://github.com/juce-framework/JUCE.git synced 2026-01-10 23:44:24 +00:00
JUCE/examples/audio plugin host/Source/GraphEditorPanel.cpp

1175 lines
36 KiB
C++

/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2015 - ROLI Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found at: www.gnu.org/licenses
JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE. See the GNU General Public License for more details.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.juce.com for more information.
==============================================================================
*/
#include "../JuceLibraryCode/JuceHeader.h"
#include "GraphEditorPanel.h"
#include "InternalFilters.h"
#include "MainHostWindow.h"
#include "FilterIOConfiguration.h"
//==============================================================================
class PluginWindow;
static Array <PluginWindow*> activePluginWindows;
PluginWindow::PluginWindow (Component* const pluginEditor,
AudioProcessorGraph::Node* const o,
WindowFormatType t)
: DocumentWindow (pluginEditor->getName(),
LookAndFeel::getDefaultLookAndFeel().findColour (ResizableWindow::backgroundColourId),
DocumentWindow::minimiseButton | DocumentWindow::closeButton),
owner (o),
type (t)
{
setSize (400, 300);
setContentOwned (pluginEditor, true);
setTopLeftPosition (owner->properties.getWithDefault (getLastXProp (type), Random::getSystemRandom().nextInt (500)),
owner->properties.getWithDefault (getLastYProp (type), Random::getSystemRandom().nextInt (500)));
owner->properties.set (getOpenProp (type), true);
setVisible (true);
activePluginWindows.add (this);
}
void PluginWindow::closeCurrentlyOpenWindowsFor (const uint32 nodeId)
{
for (int i = activePluginWindows.size(); --i >= 0;)
if (activePluginWindows.getUnchecked(i)->owner->nodeId == nodeId)
delete activePluginWindows.getUnchecked (i);
}
void PluginWindow::closeAllCurrentlyOpenWindows()
{
if (activePluginWindows.size() > 0)
{
for (int i = activePluginWindows.size(); --i >= 0;)
delete activePluginWindows.getUnchecked (i);
Component dummyModalComp;
dummyModalComp.enterModalState();
MessageManager::getInstance()->runDispatchLoopUntil (50);
}
}
//==============================================================================
class ProcessorProgramPropertyComp : public PropertyComponent,
private AudioProcessorListener
{
public:
ProcessorProgramPropertyComp (const String& name, AudioProcessor& p)
: PropertyComponent (name),
owner (p)
{
owner.addListener (this);
}
~ProcessorProgramPropertyComp()
{
owner.removeListener (this);
}
void refresh() { }
void audioProcessorChanged (AudioProcessor*) { }
void audioProcessorParameterChanged (AudioProcessor*, int, float) { }
private:
AudioProcessor& owner;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ProcessorProgramPropertyComp)
};
class ProgramAudioProcessorEditor : public AudioProcessorEditor
{
public:
ProgramAudioProcessorEditor (AudioProcessor* const p)
: AudioProcessorEditor (p)
{
jassert (p != nullptr);
setOpaque (true);
addAndMakeVisible (panel);
Array<PropertyComponent*> programs;
const int numPrograms = p->getNumPrograms();
int totalHeight = 0;
for (int i = 0; i < numPrograms; ++i)
{
String name (p->getProgramName (i).trim());
if (name.isEmpty())
name = "Unnamed";
ProcessorProgramPropertyComp* const pc = new ProcessorProgramPropertyComp (name, *p);
programs.add (pc);
totalHeight += pc->getPreferredHeight();
}
panel.addProperties (programs);
setSize (400, jlimit (25, 400, totalHeight));
}
void paint (Graphics& g) override
{
g.fillAll (Colours::grey);
}
void resized() override
{
panel.setBounds (getLocalBounds());
}
private:
PropertyPanel panel;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ProgramAudioProcessorEditor)
};
//==============================================================================
PluginWindow* PluginWindow::getWindowFor (AudioProcessorGraph::Node* const node,
WindowFormatType type)
{
jassert (node != nullptr);
for (int i = activePluginWindows.size(); --i >= 0;)
if (activePluginWindows.getUnchecked(i)->owner == node
&& activePluginWindows.getUnchecked(i)->type == type)
return activePluginWindows.getUnchecked(i);
AudioProcessor* processor = node->getProcessor();
AudioProcessorEditor* ui = nullptr;
if (type == Normal)
{
ui = processor->createEditorIfNeeded();
if (ui == nullptr)
type = Generic;
}
if (ui == nullptr)
{
if (type == Generic || type == Parameters)
ui = new GenericAudioProcessorEditor (processor);
else if (type == Programs)
ui = new ProgramAudioProcessorEditor (processor);
else if (type == AudioIO)
ui = new FilterIOConfigurationWindow (processor);
}
if (ui != nullptr)
{
if (AudioPluginInstance* const plugin = dynamic_cast<AudioPluginInstance*> (processor))
ui->setName (plugin->getName());
return new PluginWindow (ui, node, type);
}
return nullptr;
}
PluginWindow::~PluginWindow()
{
activePluginWindows.removeFirstMatchingValue (this);
clearContentComponent();
}
void PluginWindow::moved()
{
owner->properties.set (getLastXProp (type), getX());
owner->properties.set (getLastYProp (type), getY());
}
void PluginWindow::closeButtonPressed()
{
owner->properties.set (getOpenProp (type), false);
delete this;
}
//==============================================================================
class PinComponent : public Component,
public SettableTooltipClient
{
public:
PinComponent (FilterGraph& graph_,
const uint32 filterID_, const int index_, const bool isInput_)
: filterID (filterID_),
index (index_),
isInput (isInput_),
busIdx (0),
graph (graph_)
{
if (const AudioProcessorGraph::Node::Ptr node = graph.getNodeForId (filterID_))
{
String tip;
if (index == FilterGraph::midiChannelNumber)
{
tip = isInput ? "MIDI Input"
: "MIDI Output";
}
else
{
const AudioProcessor& processor = *node->getProcessor();
int channel;
channel = processor.getOffsetInBusBufferForAbsoluteChannelIndex (isInput, index, busIdx);
if (const AudioProcessor::Bus* bus = processor.getBus (isInput, busIdx))
tip = bus->getName() + String (": ")
+ AudioChannelSet::getAbbreviatedChannelTypeName (bus->getCurrentLayout().getTypeOfChannel (channel));
else
tip = (isInput ? "Main Input: "
: "Main Output: ") + String (index + 1);
}
setTooltip (tip);
}
setSize (16, 16);
}
void paint (Graphics& g) override
{
const float w = (float) getWidth();
const float h = (float) getHeight();
Path p;
p.addEllipse (w * 0.25f, h * 0.25f, w * 0.5f, h * 0.5f);
p.addRectangle (w * 0.4f, isInput ? (0.5f * h) : 0.0f, w * 0.2f, h * 0.5f);
Colour colour = (index == FilterGraph::midiChannelNumber ? Colours::red : Colours::green);
g.setColour (colour.withRotatedHue (static_cast<float> (busIdx) / 5.0f));
g.fillPath (p);
}
void mouseDown (const MouseEvent& e) override
{
getGraphPanel()->beginConnectorDrag (isInput ? 0 : filterID,
index,
isInput ? filterID : 0,
index,
e);
}
void mouseDrag (const MouseEvent& e) override
{
getGraphPanel()->dragConnector (e);
}
void mouseUp (const MouseEvent& e) override
{
getGraphPanel()->endDraggingConnector (e);
}
const uint32 filterID;
const int index;
const bool isInput;
int busIdx;
private:
FilterGraph& graph;
GraphEditorPanel* getGraphPanel() const noexcept
{
return findParentComponentOfClass<GraphEditorPanel>();
}
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (PinComponent)
};
//==============================================================================
class FilterComponent : public Component
{
public:
FilterComponent (FilterGraph& graph_,
const uint32 filterID_)
: graph (graph_),
filterID (filterID_),
numInputs (0),
numOutputs (0),
pinSize (16),
font (13.0f, Font::bold),
numIns (0),
numOuts (0)
{
shadow.setShadowProperties (DropShadow (Colours::black.withAlpha (0.5f), 3, Point<int> (0, 1)));
setComponentEffect (&shadow);
setSize (150, 60);
}
~FilterComponent()
{
deleteAllChildren();
}
void mouseDown (const MouseEvent& e) override
{
originalPos = localPointToGlobal (Point<int>());
toFront (true);
if (e.mods.isPopupMenu())
{
PopupMenu m;
m.addItem (1, "Delete this filter");
m.addItem (2, "Disconnect all pins");
m.addSeparator();
m.addItem (3, "Show plugin UI");
m.addItem (4, "Show all programs");
m.addItem (5, "Show all parameters");
m.addSeparator();
m.addItem (6, "Configure Audio I/O");
m.addItem (7, "Test state save/load");
const int r = m.show();
if (r == 1)
{
graph.removeFilter (filterID);
return;
}
else if (r == 2)
{
graph.disconnectFilter (filterID);
}
else
{
if (AudioProcessorGraph::Node::Ptr f = graph.getNodeForId (filterID))
{
AudioProcessor* const processor = f->getProcessor();
jassert (processor != nullptr);
if (r == 7)
{
MemoryBlock state;
processor->getStateInformation (state);
processor->setStateInformation (state.getData(), (int) state.getSize());
}
else
{
PluginWindow::WindowFormatType type = processor->hasEditor() ? PluginWindow::Normal
: PluginWindow::Generic;
switch (r)
{
case 4: type = PluginWindow::Programs; break;
case 5: type = PluginWindow::Parameters; break;
case 6: type = PluginWindow::AudioIO; break;
default: break;
};
if (PluginWindow* const w = PluginWindow::getWindowFor (f, type))
w->toFront (true);
}
}
}
}
}
void mouseDrag (const MouseEvent& e) override
{
if (! e.mods.isPopupMenu())
{
Point<int> pos (originalPos + Point<int> (e.getDistanceFromDragStartX(), e.getDistanceFromDragStartY()));
if (getParentComponent() != nullptr)
pos = getParentComponent()->getLocalPoint (nullptr, pos);
graph.setNodePosition (filterID,
(pos.getX() + getWidth() / 2) / (double) getParentWidth(),
(pos.getY() + getHeight() / 2) / (double) getParentHeight());
getGraphPanel()->updateComponents();
}
}
void mouseUp (const MouseEvent& e) override
{
if (e.mouseWasDraggedSinceMouseDown())
{
graph.setChangedFlag (true);
}
else if (e.getNumberOfClicks() == 2)
{
if (const AudioProcessorGraph::Node::Ptr f = graph.getNodeForId (filterID))
if (PluginWindow* const w = PluginWindow::getWindowFor (f, PluginWindow::Normal))
w->toFront (true);
}
}
bool hitTest (int x, int y) override
{
for (int i = getNumChildComponents(); --i >= 0;)
if (getChildComponent(i)->getBounds().contains (x, y))
return true;
return x >= 3 && x < getWidth() - 6 && y >= pinSize && y < getHeight() - pinSize;
}
void paint (Graphics& g) override
{
g.setColour (findColour (TextEditor::backgroundColourId));
const int x = 4;
const int y = pinSize;
const int w = getWidth() - x * 2;
const int h = getHeight() - pinSize * 2;
g.fillRect (x, y, w, h);
g.setColour (findColour (TextEditor::textColourId));
g.setFont (font);
g.drawFittedText (getName(), getLocalBounds().reduced (4, 2), Justification::centred, 2);
}
void resized() override
{
if (AudioProcessorGraph::Node::Ptr f = graph.getNodeForId (filterID))
{
if (AudioProcessor* const processor = f->getProcessor())
{
for (int i = 0; i < getNumChildComponents(); ++i)
{
if (PinComponent* const pc = dynamic_cast<PinComponent*> (getChildComponent(i)))
{
const bool isInput = pc->isInput;
int busIdx, channelIdx;
channelIdx =
processor->getOffsetInBusBufferForAbsoluteChannelIndex (isInput, pc->index, busIdx);
const int total = isInput ? numIns : numOuts;
const int index = pc->index == FilterGraph::midiChannelNumber ? (total - 1) : pc->index;
const float totalSpaces = static_cast<float> (total) + (static_cast<float> (jmax (0, processor->getBusCount (isInput) - 1)) * 0.5f);
const float indexPos = static_cast<float> (index) + (static_cast<float> (busIdx) * 0.5f);
pc->setBounds (proportionOfWidth ((1.0f + indexPos) / (totalSpaces + 1.0f)) - pinSize / 2,
pc->isInput ? 0 : (getHeight() - pinSize),
pinSize, pinSize);
}
}
}
}
}
void getPinPos (const int index, const bool isInput, float& x, float& y)
{
for (int i = 0; i < getNumChildComponents(); ++i)
{
if (PinComponent* const pc = dynamic_cast<PinComponent*> (getChildComponent(i)))
{
if (pc->index == index && isInput == pc->isInput)
{
x = getX() + pc->getX() + pc->getWidth() * 0.5f;
y = getY() + pc->getY() + pc->getHeight() * 0.5f;
break;
}
}
}
}
void update()
{
const AudioProcessorGraph::Node::Ptr f (graph.getNodeForId (filterID));
if (f == nullptr)
{
delete this;
return;
}
numIns = f->getProcessor()->getTotalNumInputChannels();
if (f->getProcessor()->acceptsMidi())
++numIns;
numOuts = f->getProcessor()->getTotalNumOutputChannels();
if (f->getProcessor()->producesMidi())
++numOuts;
int w = 100;
int h = 60;
w = jmax (w, (jmax (numIns, numOuts) + 1) * 20);
const int textWidth = font.getStringWidth (f->getProcessor()->getName());
w = jmax (w, 16 + jmin (textWidth, 300));
if (textWidth > 300)
h = 100;
setSize (w, h);
setName (f->getProcessor()->getName());
{
Point<double> p = graph.getNodePosition (filterID);
setCentreRelative ((float) p.x, (float) p.y);
}
if (numIns != numInputs || numOuts != numOutputs)
{
numInputs = numIns;
numOutputs = numOuts;
deleteAllChildren();
int i;
for (i = 0; i < f->getProcessor()->getTotalNumInputChannels(); ++i)
addAndMakeVisible (new PinComponent (graph, filterID, i, true));
if (f->getProcessor()->acceptsMidi())
addAndMakeVisible (new PinComponent (graph, filterID, FilterGraph::midiChannelNumber, true));
for (i = 0; i < f->getProcessor()->getTotalNumOutputChannels(); ++i)
addAndMakeVisible (new PinComponent (graph, filterID, i, false));
if (f->getProcessor()->producesMidi())
addAndMakeVisible (new PinComponent (graph, filterID, FilterGraph::midiChannelNumber, false));
resized();
}
}
FilterGraph& graph;
const uint32 filterID;
int numInputs, numOutputs;
private:
int pinSize;
Point<int> originalPos;
Font font;
int numIns, numOuts;
DropShadowEffect shadow;
GraphEditorPanel* getGraphPanel() const noexcept
{
return findParentComponentOfClass<GraphEditorPanel>();
}
FilterComponent (const FilterComponent&);
FilterComponent& operator= (const FilterComponent&);
};
//==============================================================================
class ConnectorComponent : public Component,
public SettableTooltipClient
{
public:
ConnectorComponent (FilterGraph& graph_)
: sourceFilterID (0),
destFilterID (0),
sourceFilterChannel (0),
destFilterChannel (0),
graph (graph_),
lastInputX (0),
lastInputY (0),
lastOutputX (0),
lastOutputY (0)
{
setAlwaysOnTop (true);
}
void setInput (const uint32 sourceFilterID_, const int sourceFilterChannel_)
{
if (sourceFilterID != sourceFilterID_ || sourceFilterChannel != sourceFilterChannel_)
{
sourceFilterID = sourceFilterID_;
sourceFilterChannel = sourceFilterChannel_;
update();
}
}
void setOutput (const uint32 destFilterID_, const int destFilterChannel_)
{
if (destFilterID != destFilterID_ || destFilterChannel != destFilterChannel_)
{
destFilterID = destFilterID_;
destFilterChannel = destFilterChannel_;
update();
}
}
void dragStart (int x, int y)
{
lastInputX = (float) x;
lastInputY = (float) y;
resizeToFit();
}
void dragEnd (int x, int y)
{
lastOutputX = (float) x;
lastOutputY = (float) y;
resizeToFit();
}
void update()
{
float x1, y1, x2, y2;
getPoints (x1, y1, x2, y2);
if (lastInputX != x1
|| lastInputY != y1
|| lastOutputX != x2
|| lastOutputY != y2)
{
resizeToFit();
}
}
void resizeToFit()
{
float x1, y1, x2, y2;
getPoints (x1, y1, x2, y2);
const Rectangle<int> newBounds ((int) jmin (x1, x2) - 4,
(int) jmin (y1, y2) - 4,
(int) std::abs (x1 - x2) + 8,
(int) std::abs (y1 - y2) + 8);
if (newBounds != getBounds())
setBounds (newBounds);
else
resized();
repaint();
}
void getPoints (float& x1, float& y1, float& x2, float& y2) const
{
x1 = lastInputX;
y1 = lastInputY;
x2 = lastOutputX;
y2 = lastOutputY;
if (GraphEditorPanel* const hostPanel = getGraphPanel())
{
if (FilterComponent* srcFilterComp = hostPanel->getComponentForFilter (sourceFilterID))
srcFilterComp->getPinPos (sourceFilterChannel, false, x1, y1);
if (FilterComponent* dstFilterComp = hostPanel->getComponentForFilter (destFilterID))
dstFilterComp->getPinPos (destFilterChannel, true, x2, y2);
}
}
void paint (Graphics& g) override
{
if (sourceFilterChannel == FilterGraph::midiChannelNumber
|| destFilterChannel == FilterGraph::midiChannelNumber)
{
g.setColour (Colours::red);
}
else
{
g.setColour (Colours::green);
}
g.fillPath (linePath);
}
bool hitTest (int x, int y) override
{
if (hitPath.contains ((float) x, (float) y))
{
double distanceFromStart, distanceFromEnd;
getDistancesFromEnds (x, y, distanceFromStart, distanceFromEnd);
// avoid clicking the connector when over a pin
return distanceFromStart > 7.0 && distanceFromEnd > 7.0;
}
return false;
}
void mouseDown (const MouseEvent&) override
{
dragging = false;
}
void mouseDrag (const MouseEvent& e) override
{
if (dragging)
{
getGraphPanel()->dragConnector (e);
}
else if (e.mouseWasDraggedSinceMouseDown())
{
dragging = true;
graph.removeConnection (sourceFilterID, sourceFilterChannel, destFilterID, destFilterChannel);
double distanceFromStart, distanceFromEnd;
getDistancesFromEnds (e.x, e.y, distanceFromStart, distanceFromEnd);
const bool isNearerSource = (distanceFromStart < distanceFromEnd);
getGraphPanel()->beginConnectorDrag (isNearerSource ? 0 : sourceFilterID,
sourceFilterChannel,
isNearerSource ? destFilterID : 0,
destFilterChannel,
e);
}
}
void mouseUp (const MouseEvent& e) override
{
if (dragging)
getGraphPanel()->endDraggingConnector (e);
}
void resized() override
{
float x1, y1, x2, y2;
getPoints (x1, y1, x2, y2);
lastInputX = x1;
lastInputY = y1;
lastOutputX = x2;
lastOutputY = y2;
x1 -= getX();
y1 -= getY();
x2 -= getX();
y2 -= getY();
linePath.clear();
linePath.startNewSubPath (x1, y1);
linePath.cubicTo (x1, y1 + (y2 - y1) * 0.33f,
x2, y1 + (y2 - y1) * 0.66f,
x2, y2);
PathStrokeType wideStroke (8.0f);
wideStroke.createStrokedPath (hitPath, linePath);
PathStrokeType stroke (2.5f);
stroke.createStrokedPath (linePath, linePath);
const float arrowW = 5.0f;
const float arrowL = 4.0f;
Path arrow;
arrow.addTriangle (-arrowL, arrowW,
-arrowL, -arrowW,
arrowL, 0.0f);
arrow.applyTransform (AffineTransform()
.rotated (float_Pi * 0.5f - (float) atan2 (x2 - x1, y2 - y1))
.translated ((x1 + x2) * 0.5f,
(y1 + y2) * 0.5f));
linePath.addPath (arrow);
linePath.setUsingNonZeroWinding (true);
}
uint32 sourceFilterID, destFilterID;
int sourceFilterChannel, destFilterChannel;
private:
FilterGraph& graph;
float lastInputX, lastInputY, lastOutputX, lastOutputY;
Path linePath, hitPath;
bool dragging;
GraphEditorPanel* getGraphPanel() const noexcept
{
return findParentComponentOfClass<GraphEditorPanel>();
}
void getDistancesFromEnds (int x, int y, double& distanceFromStart, double& distanceFromEnd) const
{
float x1, y1, x2, y2;
getPoints (x1, y1, x2, y2);
distanceFromStart = juce_hypot (x - (x1 - getX()), y - (y1 - getY()));
distanceFromEnd = juce_hypot (x - (x2 - getX()), y - (y2 - getY()));
}
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ConnectorComponent)
};
//==============================================================================
GraphEditorPanel::GraphEditorPanel (FilterGraph& graph_)
: graph (graph_)
{
graph.addChangeListener (this);
setOpaque (true);
}
GraphEditorPanel::~GraphEditorPanel()
{
graph.removeChangeListener (this);
draggingConnector = nullptr;
deleteAllChildren();
}
void GraphEditorPanel::paint (Graphics& g)
{
g.fillAll (getLookAndFeel().findColour (ResizableWindow::backgroundColourId));
}
void GraphEditorPanel::mouseDown (const MouseEvent& e)
{
if (e.mods.isPopupMenu())
{
PopupMenu m;
if (MainHostWindow* const mainWindow = findParentComponentOfClass<MainHostWindow>())
{
mainWindow->addPluginsToMenu (m);
const int r = m.show();
createNewPlugin (mainWindow->getChosenType (r), e.x, e.y);
}
}
}
void GraphEditorPanel::createNewPlugin (const PluginDescription* desc, int x, int y)
{
graph.addFilter (desc, x / (double) getWidth(), y / (double) getHeight());
}
FilterComponent* GraphEditorPanel::getComponentForFilter (const uint32 filterID) const
{
for (int i = getNumChildComponents(); --i >= 0;)
{
if (FilterComponent* const fc = dynamic_cast<FilterComponent*> (getChildComponent (i)))
if (fc->filterID == filterID)
return fc;
}
return nullptr;
}
ConnectorComponent* GraphEditorPanel::getComponentForConnection (const AudioProcessorGraph::Connection& conn) const
{
for (int i = getNumChildComponents(); --i >= 0;)
{
if (ConnectorComponent* const c = dynamic_cast<ConnectorComponent*> (getChildComponent (i)))
if (c->sourceFilterID == conn.sourceNodeId
&& c->destFilterID == conn.destNodeId
&& c->sourceFilterChannel == conn.sourceChannelIndex
&& c->destFilterChannel == conn.destChannelIndex)
return c;
}
return nullptr;
}
PinComponent* GraphEditorPanel::findPinAt (const int x, const int y) const
{
for (int i = getNumChildComponents(); --i >= 0;)
{
if (FilterComponent* fc = dynamic_cast<FilterComponent*> (getChildComponent (i)))
{
if (PinComponent* pin = dynamic_cast<PinComponent*> (fc->getComponentAt (x - fc->getX(),
y - fc->getY())))
return pin;
}
}
return nullptr;
}
void GraphEditorPanel::resized()
{
updateComponents();
}
void GraphEditorPanel::changeListenerCallback (ChangeBroadcaster*)
{
updateComponents();
}
void GraphEditorPanel::updateComponents()
{
for (int i = getNumChildComponents(); --i >= 0;)
{
if (FilterComponent* const fc = dynamic_cast<FilterComponent*> (getChildComponent (i)))
fc->update();
}
for (int i = getNumChildComponents(); --i >= 0;)
{
ConnectorComponent* const cc = dynamic_cast<ConnectorComponent*> (getChildComponent (i));
if (cc != nullptr && cc != draggingConnector)
{
if (graph.getConnectionBetween (cc->sourceFilterID, cc->sourceFilterChannel,
cc->destFilterID, cc->destFilterChannel) == nullptr)
{
delete cc;
}
else
{
cc->update();
}
}
}
for (int i = graph.getNumFilters(); --i >= 0;)
{
const AudioProcessorGraph::Node::Ptr f (graph.getNode (i));
if (getComponentForFilter (f->nodeId) == 0)
{
FilterComponent* const comp = new FilterComponent (graph, f->nodeId);
addAndMakeVisible (comp);
comp->update();
}
}
for (int i = graph.getNumConnections(); --i >= 0;)
{
const AudioProcessorGraph::Connection* const c = graph.getConnection (i);
if (getComponentForConnection (*c) == 0)
{
ConnectorComponent* const comp = new ConnectorComponent (graph);
addAndMakeVisible (comp);
comp->setInput (c->sourceNodeId, c->sourceChannelIndex);
comp->setOutput (c->destNodeId, c->destChannelIndex);
}
}
}
void GraphEditorPanel::beginConnectorDrag (const uint32 sourceFilterID, const int sourceFilterChannel,
const uint32 destFilterID, const int destFilterChannel,
const MouseEvent& e)
{
draggingConnector = dynamic_cast<ConnectorComponent*> (e.originalComponent);
if (draggingConnector == nullptr)
draggingConnector = new ConnectorComponent (graph);
draggingConnector->setInput (sourceFilterID, sourceFilterChannel);
draggingConnector->setOutput (destFilterID, destFilterChannel);
addAndMakeVisible (draggingConnector);
draggingConnector->toFront (false);
dragConnector (e);
}
void GraphEditorPanel::dragConnector (const MouseEvent& e)
{
const MouseEvent e2 (e.getEventRelativeTo (this));
if (draggingConnector != nullptr)
{
draggingConnector->setTooltip (String());
int x = e2.x;
int y = e2.y;
if (PinComponent* const pin = findPinAt (x, y))
{
uint32 srcFilter = draggingConnector->sourceFilterID;
int srcChannel = draggingConnector->sourceFilterChannel;
uint32 dstFilter = draggingConnector->destFilterID;
int dstChannel = draggingConnector->destFilterChannel;
if (srcFilter == 0 && ! pin->isInput)
{
srcFilter = pin->filterID;
srcChannel = pin->index;
}
else if (dstFilter == 0 && pin->isInput)
{
dstFilter = pin->filterID;
dstChannel = pin->index;
}
if (graph.canConnect (srcFilter, srcChannel, dstFilter, dstChannel))
{
x = pin->getParentComponent()->getX() + pin->getX() + pin->getWidth() / 2;
y = pin->getParentComponent()->getY() + pin->getY() + pin->getHeight() / 2;
draggingConnector->setTooltip (pin->getTooltip());
}
}
if (draggingConnector->sourceFilterID == 0)
draggingConnector->dragStart (x, y);
else
draggingConnector->dragEnd (x, y);
}
}
void GraphEditorPanel::endDraggingConnector (const MouseEvent& e)
{
if (draggingConnector == nullptr)
return;
draggingConnector->setTooltip (String());
const MouseEvent e2 (e.getEventRelativeTo (this));
uint32 srcFilter = draggingConnector->sourceFilterID;
int srcChannel = draggingConnector->sourceFilterChannel;
uint32 dstFilter = draggingConnector->destFilterID;
int dstChannel = draggingConnector->destFilterChannel;
draggingConnector = nullptr;
if (PinComponent* const pin = findPinAt (e2.x, e2.y))
{
if (srcFilter == 0)
{
if (pin->isInput)
return;
srcFilter = pin->filterID;
srcChannel = pin->index;
}
else
{
if (! pin->isInput)
return;
dstFilter = pin->filterID;
dstChannel = pin->index;
}
graph.addConnection (srcFilter, srcChannel, dstFilter, dstChannel);
}
}
//==============================================================================
class TooltipBar : public Component,
private Timer
{
public:
TooltipBar()
{
startTimer (100);
}
void paint (Graphics& g) override
{
g.setFont (Font (getHeight() * 0.7f, Font::bold));
g.setColour (Colours::black);
g.drawFittedText (tip, 10, 0, getWidth() - 12, getHeight(), Justification::centredLeft, 1);
}
void timerCallback() override
{
Component* const underMouse = Desktop::getInstance().getMainMouseSource().getComponentUnderMouse();
TooltipClient* const ttc = dynamic_cast<TooltipClient*> (underMouse);
String newTip;
if (ttc != nullptr && ! (underMouse->isMouseButtonDown() || underMouse->isCurrentlyBlockedByAnotherModalComponent()))
newTip = ttc->getTooltip();
if (newTip != tip)
{
tip = newTip;
repaint();
}
}
private:
String tip;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TooltipBar)
};
//==============================================================================
GraphDocumentComponent::GraphDocumentComponent (AudioPluginFormatManager& formatManager,
AudioDeviceManager* deviceManager_)
: graph (new FilterGraph (formatManager)), deviceManager (deviceManager_),
graphPlayer (getAppProperties().getUserSettings()->getBoolValue ("doublePrecisionProcessing", false))
{
addAndMakeVisible (graphPanel = new GraphEditorPanel (*graph));
deviceManager->addChangeListener (graphPanel);
graphPlayer.setProcessor (&graph->getGraph());
keyState.addListener (&graphPlayer.getMidiMessageCollector());
addAndMakeVisible (keyboardComp = new MidiKeyboardComponent (keyState,
MidiKeyboardComponent::horizontalKeyboard));
addAndMakeVisible (statusBar = new TooltipBar());
deviceManager->addAudioCallback (&graphPlayer);
deviceManager->addMidiInputCallback (String(), &graphPlayer.getMidiMessageCollector());
graphPanel->updateComponents();
}
GraphDocumentComponent::~GraphDocumentComponent()
{
releaseGraph();
keyState.removeListener (&graphPlayer.getMidiMessageCollector());
}
void GraphDocumentComponent::resized()
{
const int keysHeight = 60;
const int statusHeight = 20;
graphPanel->setBounds (0, 0, getWidth(), getHeight() - keysHeight);
statusBar->setBounds (0, getHeight() - keysHeight - statusHeight, getWidth(), statusHeight);
keyboardComp->setBounds (0, getHeight() - keysHeight, getWidth(), keysHeight);
}
void GraphDocumentComponent::createNewPlugin (const PluginDescription* desc, int x, int y)
{
graphPanel->createNewPlugin (desc, x, y);
}
void GraphDocumentComponent::unfocusKeyboardComponent()
{
keyboardComp->unfocusAllComponents();
}
void GraphDocumentComponent::releaseGraph()
{
deviceManager->removeAudioCallback (&graphPlayer);
deviceManager->removeMidiInputCallback (String(), &graphPlayer.getMidiMessageCollector());
deviceManager->removeChangeListener (graphPanel);
deleteAllChildren();
graphPlayer.setProcessor (nullptr);
graph = nullptr;
}