From 8d8aef13b245db7d4833ebb9a0f95f4b3402ee10 Mon Sep 17 00:00:00 2001
From: jvoigts <jvoigts@mit.edu>
Date: Sun, 16 Jun 2013 19:22:22 -0400
Subject: [PATCH] Added simple event display
---
.../Visualization/LfpDisplayCanvas.cpp | 156 +++++++++++++++++-
.../Visualization/LfpDisplayCanvas.h | 48 +++++-
2 files changed, 192 insertions(+), 12 deletions(-)
diff --git a/Source/Processors/Visualization/LfpDisplayCanvas.cpp b/Source/Processors/Visualization/LfpDisplayCanvas.cpp
index a1ea23d11..54f91aacb 100755
--- a/Source/Processors/Visualization/LfpDisplayCanvas.cpp
+++ b/Source/Processors/Visualization/LfpDisplayCanvas.cpp
@@ -107,6 +107,21 @@ LfpDisplayCanvas::LfpDisplayCanvas(LfpDisplayNode* processor_) :
lfpDisplay->setNumChannels(nChans);
lfpDisplay->setRange(1000.0f);
+ // add event display-specific controls (currently just an enable/disable button)
+ for (int i = 0; i < 8; i++)
+ {
+
+
+ eventDisplayInterface* eventOptions = new eventDisplayInterface(lfpDisplay, this, i);
+ eventDisplayInterfaces.add(eventOptions);
+ addAndMakeVisible(eventOptions);
+ eventOptions->setBounds(500+(floor(i/2)*20), getHeight()-20-(i%2)*20, 40, 20);
+
+ lfpDisplay->setEventDisplayState(i,true);
+
+ }
+
+
}
LfpDisplayCanvas::~LfpDisplayCanvas()
@@ -127,6 +142,13 @@ void LfpDisplayCanvas::resized()
timebaseSelection->setBounds(175,getHeight()-30,100,25);
spreadSelection->setBounds(345,getHeight()-30,100,25);
+ for (int i = 0; i < 8; i++)
+ {
+ eventDisplayInterfaces[i]->setBounds(500+(floor(i/2)*20), getHeight()-20-(i%2)*20, 40, 20); // arrange event channel buttons in two rows
+ eventDisplayInterfaces[i]->repaint();
+ }
+
+
// std::cout << "Canvas thinks LfpDisplay should be this high: "
// << lfpDisplay->getTotalHeight() << std::endl;
@@ -293,7 +315,7 @@ void LfpDisplayCanvas::updateScreenBuffer()
screenBuffer->clear(screenBufferIndex, 1);
- for (int channel = 0; channel < nChans; channel++)
+ for (int channel = 0; channel <= nChans; channel++) // pull one extra channel for event display
{
screenBuffer->addFrom(channel, // destChannel
@@ -339,6 +361,11 @@ float LfpDisplayCanvas::getXCoord(int chan, int samp)
return samp;
}
+int LfpDisplayCanvas::getNumChannels()
+{
+ return nChans;
+}
+
float LfpDisplayCanvas::getYCoord(int chan, int samp)
{
return *screenBuffer->getSampleData(chan, samp);
@@ -383,6 +410,10 @@ void LfpDisplayCanvas::paint(Graphics& g)
g.drawText("Timebase (s)",175,getHeight()-55,300,20,Justification::left, false);
g.drawText("Spread (px)",345,getHeight()-55,300,20,Justification::left, false);
+ g.drawText("Event display",500,getHeight()-55,300,20,Justification::left, false);
+
+
+
}
void LfpDisplayCanvas::refresh()
@@ -523,6 +554,12 @@ LfpDisplay::~LfpDisplay()
deleteAllChildren();
}
+
+int LfpDisplay::getNumChannels()
+{
+ return numChans;
+}
+
void LfpDisplay::setNumChannels(int numChannels)
{
numChans = numChannels;
@@ -539,7 +576,7 @@ void LfpDisplay::setNumChannels(int numChannels)
//std::cout << "Adding new channel display." << std::endl;
- LfpChannelDisplay* lfpChan = new LfpChannelDisplay(canvas, i);
+ LfpChannelDisplay* lfpChan = new LfpChannelDisplay(canvas, this, i);
lfpChan->setColour(channelColours[i % channelColours.size()]);
lfpChan->setRange(range);
@@ -549,7 +586,7 @@ void LfpDisplay::setNumChannels(int numChannels)
channels.add(lfpChan);
- LfpChannelDisplayInfo* lfpInfo = new LfpChannelDisplayInfo(canvas, i);
+ LfpChannelDisplayInfo* lfpInfo = new LfpChannelDisplayInfo(canvas, this, i);
lfpInfo->setColour(channelColours[i % channelColours.size()]);
lfpInfo->setRange(range);
@@ -750,10 +787,24 @@ void LfpDisplay::mouseDown(const MouseEvent& event)
}
+
+bool LfpDisplay::setEventDisplayState(int ch, bool state)
+{
+ eventDisplayEnabled[ch] = state;
+ return eventDisplayEnabled[ch];
+}
+
+
+bool LfpDisplay::getEventDisplayState(int ch)
+{
+ return eventDisplayEnabled[ch];
+}
+
+
// ------------------------------------------------------------------
-LfpChannelDisplay::LfpChannelDisplay(LfpDisplayCanvas* c, int channelNumber) :
- canvas(c), isSelected(false), chan(channelNumber), channelHeight(40), channelOverlap(300), range(1000.0f)
+LfpChannelDisplay::LfpChannelDisplay(LfpDisplayCanvas* c, LfpDisplay* d, int channelNumber) :
+ canvas(c), display(d), isSelected(false), chan(channelNumber), channelHeight(40), channelOverlap(300), range(1000.0f)
{
channelHeightFloat = (float) channelHeight;
@@ -777,6 +828,9 @@ void LfpChannelDisplay::paint(Graphics& g)
g.setColour(Colours::yellow); // draw most recent drawn sample position
g.drawLine(canvas->screenBufferIndex+1, 0, canvas->screenBufferIndex+1, getHeight());
+
+
+
//g.setColour(Colours::red); // draw oldest drawn sample position
//g.drawLine(canvas->lastScreenBufferIndex, 0, canvas->lastScreenBufferIndex, getHeight()-channelOverlap);
@@ -803,7 +857,6 @@ void LfpChannelDisplay::paint(Graphics& g)
int stepSize = 1;
int from = 0; // for vertical line drawing in the LFP data
int to = 0;
- g.setColour(lineColour);
//for (int i = 0; i < getWidth()-stepSize; i += stepSize) // redraw entire display
int ifrom = canvas->lastScreenBufferIndex - 3; // need to start drawing a bit before the actual redraw windowfor the interpolated line to join correctly
@@ -823,6 +876,24 @@ void LfpChannelDisplay::paint(Graphics& g)
for (int i = ifrom; i < ito ; i += stepSize) // redraw only changed portion
{
+ // draw event markers
+ int rawEventState = canvas->getYCoord(canvas->getNumChannels(), i);// get last channel+1 in buffer (represents events)
+ for (int ev_ch = 0; ev_ch < 8 ; ev_ch++) // for all event channels
+ {
+ if (display->getEventDisplayState(ev_ch)){ // check if plotting for this channel is enabled
+ if ( rawEventState & (1 << ev_ch)){ // events are representet by a bit code, so we have to extract the individual bits with a mask
+ g.setColour(display->channelColours[ev_ch*2]); // get color from lfp color scheme
+ g.setOpacity(0.25f);
+ g.drawLine(i, center-channelHeight/2 , i, center+channelHeight/2);
+ }
+ }
+ }
+
+ //std::cout << "e " << canvas->getYCoord(canvas->getNumChannels()-1, i) << std::endl;
+
+ g.setColour(lineColour);
+ g.setOpacity(1);
+
// drawLine makes for ok anti-aliased plots, but is pretty slow
g.drawLine(i,
(canvas->getYCoord(chan, i)/range*channelHeightFloat)+getHeight()/2,
@@ -873,6 +944,10 @@ void LfpChannelDisplay::paint(Graphics& g)
}
+
+
+
+
void LfpChannelDisplay::setRange(float r)
{
range = r;
@@ -929,8 +1004,8 @@ int LfpChannelDisplay::getChannelOverlap()
// -------------------------------
-LfpChannelDisplayInfo::LfpChannelDisplayInfo(LfpDisplayCanvas* canvas_, int ch)
- : LfpChannelDisplay(canvas_, ch)
+LfpChannelDisplayInfo::LfpChannelDisplayInfo(LfpDisplayCanvas* canvas_, LfpDisplay* display_, int ch)
+ : LfpChannelDisplay(canvas_, display_, ch)
{
}
@@ -949,4 +1024,67 @@ void LfpChannelDisplayInfo::paint(Graphics& g)
}
-
\ No newline at end of file
+
+
+// Event display Options --------------------------------------------------------------------
+
+eventDisplayInterface::eventDisplayInterface(LfpDisplay* display_, LfpDisplayCanvas* canvas_, int chNum):
+ isEnabled(true), display(display_), canvas(canvas_)
+{
+
+ channelNumber=chNum;
+
+ chButton = new UtilityButton(String(channelNumber+1), Font("Small Text", 13, Font::plain));
+ chButton->setRadius(5.0f);
+ chButton->setBounds(4,4,14,14);
+ chButton->setEnabledState(true);
+ chButton->setCorners(true, false, true, false);
+ //chButton.color = display->channelColours[channelNumber*2];
+ chButton->addListener(this);
+ addAndMakeVisible(chButton);
+
+
+ checkEnabledState();
+
+}
+
+eventDisplayInterface::~eventDisplayInterface()
+{
+
+}
+
+void eventDisplayInterface::checkEnabledState()
+{
+ isEnabled = display->getEventDisplayState(channelNumber);
+
+ //repaint();
+}
+
+void eventDisplayInterface::buttonClicked(Button* button)
+{
+ checkEnabledState();
+ if (isEnabled){
+ display->setEventDisplayState(channelNumber, false);
+ } else {
+ display->setEventDisplayState(channelNumber, true);
+ }
+
+ repaint();
+
+}
+
+
+void eventDisplayInterface::paint(Graphics& g)
+{
+
+ checkEnabledState();
+
+ if (isEnabled){
+ g.setColour(display->channelColours[channelNumber*2]);
+ g.fillRoundedRectangle(2,2,18,18,5.0f);
+ }
+
+
+ //g.drawText(String(channelNumber), 8, 2, 200, 15, Justification::left, false);
+
+}
\ No newline at end of file
diff --git a/Source/Processors/Visualization/LfpDisplayCanvas.h b/Source/Processors/Visualization/LfpDisplayCanvas.h
index cfbe69b13..79f903e24 100755
--- a/Source/Processors/Visualization/LfpDisplayCanvas.h
+++ b/Source/Processors/Visualization/LfpDisplayCanvas.h
@@ -33,6 +33,7 @@ class LfpTimescale;
class LfpDisplay;
class LfpChannelDisplay;
class LfpChannelDisplayInfo;
+class eventDisplayInterface;
/**
@@ -68,6 +69,8 @@ public:
int getChannelHeight();
+ int getNumChannels();
+
float getXCoord(int chan, int samp);
float getYCoord(int chan, int samp);
@@ -117,6 +120,9 @@ private:
StringArray timebases;
StringArray spreads; // option for vertical spacing between channels
+ OwnedArray<eventDisplayInterface> eventDisplayInterfaces;
+
+
void refreshScreenBuffer();
void updateScreenBuffer();
@@ -161,6 +167,7 @@ public:
~LfpDisplay();
void setNumChannels(int numChannels);
+ int getNumChannels();
int getTotalHeight();
@@ -180,6 +187,12 @@ public:
void setChannelHeight(int r);
int getChannelHeight();
+ bool setEventDisplayState(int ch, bool state);
+ bool getEventDisplayState(int ch);
+
+
+ Array<Colour> channelColours;
+
private:
int numChans;
@@ -190,7 +203,8 @@ private:
Array<LfpChannelDisplay*> channels;
Array<LfpChannelDisplayInfo*> channelInfo;
- Array<Colour> channelColours;
+
+ bool eventDisplayEnabled[8];
float range;
@@ -199,7 +213,7 @@ private:
class LfpChannelDisplay : public Component
{
public:
- LfpChannelDisplay(LfpDisplayCanvas*, int channelNumber);
+ LfpChannelDisplay(LfpDisplayCanvas*, LfpDisplay*, int channelNumber);
~LfpChannelDisplay();
void paint(Graphics& g);
@@ -223,6 +237,7 @@ public:
protected:
LfpDisplayCanvas* canvas;
+ LfpDisplay* display;
bool isSelected;
@@ -243,10 +258,37 @@ protected:
class LfpChannelDisplayInfo : public LfpChannelDisplay
{
public:
- LfpChannelDisplayInfo(LfpDisplayCanvas*, int channelNumber);
+ LfpChannelDisplayInfo(LfpDisplayCanvas*, LfpDisplay*, int channelNumber);
+
+ void paint(Graphics& g);
+
+};
+
+class eventDisplayInterface : public Component,
+ public Button::Listener
+{
+public:
+ eventDisplayInterface(LfpDisplay*, LfpDisplayCanvas*, int chNum);
+ ~eventDisplayInterface();
void paint(Graphics& g);
+ void buttonClicked(Button* button);
+
+ void checkEnabledState();
+
+private:
+
+ int channelNumber;
+
+ bool isEnabled;
+
+ LfpDisplay* display;
+ LfpDisplayCanvas* canvas;
+
+ ScopedPointer<UtilityButton> chButton;
+
};
+
#endif // __LFPDISPLAYCANVAS_H_B711873A__
--
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