// sets the raw data for the given control, invokes on main thread
public void UpdateImageControlContents(int index, PixelFormat pf, params float[][] buffers)
{
this.Invoke(new Action(() =>
{
if (imageFlowPanel.Controls.Count > index)
{
ImageControl ic = imageFlowPanel.Controls[index] as ImageControl;
ic.Format = pf;
for (int k = 0; k < buffers.Length; k++)
{
ic.SetImage(k, buffers[k]);
}
ic.Invalidate();
}
}));
}
private void AsyncUpdate()
{
DateTime prev = DateTime.Now;
double time_since_last_draw = 0;
bool parent_previously_visible = false;
bool drawn_atleast_once = false;
while (true)
{
// update last time since last draw
DateTime now = DateTime.Now;
time_since_last_draw += now.Subtract(prev).TotalSeconds;
prev = now;
// get a command message if there is one
Message m = _messages.Dequeue();
if (m != null)
{
switch (m.Type)
{
case "Start":
switch (_current_state)
{
case State.Paused:
_current_state = State.Running;
break;
case State.Running:
break;
case State.Stopped:
// image controls need to be added and modified on the main thread, so do an Invoke
this.Invoke(new Action(() =>
{
int image_width = this.ImageControlWidth;
int image_height = this.ImageControlHeight;
PixelFormat pixel_format = this.ImageControlPixelFormat;
for (int k = 0; k < this.ImageControlCount; k++)
{
ImageControl ic = new ImageControl(_count, image_width, image_height, _scale, pixel_format);
imageFlowPanel.Controls.Add(ic);
}
this._current_state = State.Running;
}));
break;
}
break;
case "Pause":
// pausing just
_current_state = State.Paused;
break;
case "Stop":
// stop the visualizer and clear out the images on the main thread
_current_state = State.Stopped;
drawn_atleast_once = false;
this.Invoke(new Action(() =>
{
this.imageFlowPanel.Controls.Clear();
}));
break;
case "Zoom":
// update image controls on the main thread
var delta = (int)m["delta"];
// scale must be at least 1
_scale = Math.Max(delta + _scale, 1);
UpdateImageControlDimensions();
break;
}
}
else
{
// sleep when the message queue is empty
Thread.Sleep(50);
}
if (_current_state == State.Running && drawn_atleast_once == false)
{
drawn_atleast_once = true;
time_since_last_draw = 0.0;
Drawing();
prev = DateTime.Now;
}
if (_current_state == State.Running && time_since_last_draw >= DrawInterval)
{
if (this.Parent != null && this.Parent.Visible == true)
{
if (parent_previously_visible == false)
{
// sleep awhile before drawing if we just flipped to this tab
Thread.Sleep(500);
}
// reset time_since_last_draw and update
time_since_last_draw = 0.0;
Drawing();
prev = DateTime.Now;
}
parent_previously_visible = this.Parent != null ? this.Parent.Visible : false;
}
}
}
private void AsyncUpdate()
{
DateTime prev = DateTime.Now;
double time_since_last_draw = 0;
bool parent_previously_visible = false;
bool drawn_atleast_once = false;
while (true)
{
// update last time since last draw
DateTime now = DateTime.Now;
time_since_last_draw += now.Subtract(prev).TotalSeconds;
prev = now;
// get a command message if there is one
Message m = _messages.Dequeue();
if (m != null)
{
switch (m.Type)
{
case "Start":
switch (_current_state)
{
case State.Paused:
_current_state = State.Running;
break;
case State.Running:
break;
case State.Stopped:
// image controls need to be added and modified on the main thread, so do an Invoke
this.Invoke(new Action(() =>
{
int image_width = this.ImageControlWidth;
int image_height = this.ImageControlHeight;
PixelFormat pixel_format = this.ImageControlPixelFormat;
for (int k = 0; k < this.ImageControlCount; k++)
{
ImageControl ic = new ImageControl(_count, image_width, image_height, _scale, pixel_format);
imageFlowPanel.Controls.Add(ic);
}
this._current_state = State.Running;
}));
break;
}
break;
case "Pause":
// pausing just
_current_state = State.Paused;
break;
case "Stop":
// stop the visualizer and clear out the images on the main thread
_current_state = State.Stopped;
drawn_atleast_once = false;
this.Invoke(new Action(() =>
{
this.imageFlowPanel.Controls.Clear();
}));
break;
case "Zoom":
// update image controls on the main thread
var delta = (int)m["delta"];
// scale must be at least 1
_scale = Math.Max(delta + _scale, 1);
UpdateImageControlDimensions();
break;
}
}
else
{
// sleep when the message queue is empty
Thread.Sleep(50);
}
if (_current_state == State.Running && drawn_atleast_once == false)
{
drawn_atleast_once = true;
time_since_last_draw = 0.0;
Drawing();
prev = DateTime.Now;
}
if (_current_state == State.Running && time_since_last_draw >= DrawInterval)
{
if (this.Parent != null && this.Parent.Visible == true)
{
if (parent_previously_visible == false)
{
// sleep awhile before drawing if we just flipped to this tab
Thread.Sleep(500);
}
// reset time_since_last_draw and update
time_since_last_draw = 0.0;
Drawing();
prev = DateTime.Now;
}
parent_previously_visible = this.Parent != null ? this.Parent.Visible : false;
}
}
}
