From f2ee78582f2ebd3f77b5fa4877a857095b3e4fd9 Mon Sep 17 00:00:00 2001
From: jsiegle <jsiegle@mit.edu>
Date: Wed, 3 Apr 2013 21:11:47 -0400
Subject: [PATCH] Change visualizer refresh rate
---
.../Visualization/LfpDisplayCanvas.cpp | 17 ++++++++++-------
.../Processors/Visualization/LfpDisplayCanvas.h | 2 ++
Source/Processors/Visualization/Visualizer.h | 5 ++++-
3 files changed, 16 insertions(+), 8 deletions(-)
diff --git a/Source/Processors/Visualization/LfpDisplayCanvas.cpp b/Source/Processors/Visualization/LfpDisplayCanvas.cpp
index 7917cd2f7..b106e07e8 100755
--- a/Source/Processors/Visualization/LfpDisplayCanvas.cpp
+++ b/Source/Processors/Visualization/LfpDisplayCanvas.cpp
@@ -82,14 +82,14 @@ void LfpDisplayCanvas::beginAnimation()
screenBufferIndex = 0;
- startTimer(500);
+ startCallbacks();
}
void LfpDisplayCanvas::endAnimation()
{
std::cout << "Ending animation." << std::endl;
- stopTimer();
+ stopCallbacks();
}
void LfpDisplayCanvas::update()
@@ -254,19 +254,22 @@ void LfpDisplayCanvas::paint(Graphics& g)
{
//std::cout << "Painting" << std::endl;
-
- updateScreenBuffer();
-
g.setColour(Colours::grey);
g.fillRect(0, 0, getWidth(), getHeight());
- g.setColour(Colours::yellow);
+ // g.setColour(Colours::yellow);
- g.drawLine(screenBufferIndex, 0, screenBufferIndex, getHeight());
+ // g.drawLine(screenBufferIndex, 0, screenBufferIndex, getHeight());
}
+void LfpDisplayCanvas::refresh()
+{
+ updateScreenBuffer();
+
+}
+
// -------------------------------------------------------------
LfpTimescale::LfpTimescale(LfpDisplayCanvas* c) : canvas(c)
diff --git a/Source/Processors/Visualization/LfpDisplayCanvas.h b/Source/Processors/Visualization/LfpDisplayCanvas.h
index 8c0ce15eb..039ed1d0d 100755
--- a/Source/Processors/Visualization/LfpDisplayCanvas.h
+++ b/Source/Processors/Visualization/LfpDisplayCanvas.h
@@ -60,6 +60,8 @@ public:
void paint(Graphics& g);
+ void refresh();
+
void resized();
float getXCoord(int chan, int samp);
diff --git a/Source/Processors/Visualization/Visualizer.h b/Source/Processors/Visualization/Visualizer.h
index 96250ba10..fe0f15c72 100755
--- a/Source/Processors/Visualization/Visualizer.h
+++ b/Source/Processors/Visualization/Visualizer.h
@@ -48,6 +48,9 @@ public:
/** Called when parameters of underlying data processor are changed.*/
virtual void update() = 0;
+ /** Called instead of "repaint" to avoid redrawing underlying components if not necessary.*/
+ virtual void refresh() = 0;
+
/** Called when data acquisition is active.*/
virtual void beginAnimation() = 0;
@@ -67,7 +70,7 @@ public:
void stopCallbacks() { stopTimer(); }
/** Called whenever the timer is triggered. */
- void timerCallback() { repaint(); }
+ void timerCallback() { refresh(); }
/** Refresh rate in Hz. */
float refreshRate;
--
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