private void SetPreview()
{
var mousePos = EyeDropperHelper.GetCursorPosition();
var previewImage = EyeDropperHelper.CaptureRegion(new Int32Rect(mousePos.X - PreviewImageOuterPixelCount, mousePos.Y - PreviewImageOuterPixelCount, 2 * PreviewImageOuterPixelCount + 1, 2 * PreviewImageOuterPixelCount + 1));
var previewColor = EyeDropperHelper.GetPixelColor(mousePos);
SetCurrentValue(PreviewImageSourceProperty, previewImage);
SetCurrentValue(PreviewBrushProperty, new SolidColorBrush(previewColor));
}
private void SetPreview()
{
var action = new Action(() =>
{
var mousePos = EyeDropperHelper.GetCursorPosition();
var previewImage = EyeDropperHelper.CaptureRegion(new Int32Rect(mousePos.X - PreviewImageOuterPixelCount, mousePos.Y - PreviewImageOuterPixelCount, 2 * PreviewImageOuterPixelCount + 1, 2 * PreviewImageOuterPixelCount + 1));
var previewColor = EyeDropperHelper.GetPixelColor(mousePos);
SetCurrentValue(PreviewImageSourceProperty, previewImage);
SetCurrentValue(PreviewBrushProperty, new SolidColorBrush(previewColor));
});
Dispatcher.BeginInvoke(DispatcherPriority.Background, action);
}
private void ColorEyeDropper_PreviewMouseUp(object sender, MouseEventArgs e)
{
this.ReleaseMouseCapture();
this.MouseMove -= this.ColorEyeDropper_PreviewMouseMove;
this.Cursor = Cursors.Arrow;
if (!this.IsMouseOver)
{
var mousePos = EyeDropperHelper.GetCursorPosition();
this.SelectedColor = EyeDropperHelper.GetPixelColor(mousePos);
}
if (this.ToolTip is ToolTip toolTip)
{
toolTip.IsOpen = false;
}
}
private void SetPreview()
{
if (currentTask?.Status == DispatcherOperationStatus.Executing || currentTask?.Status == DispatcherOperationStatus.Pending)
{
currentTask.Abort();
}
var action = new Action(() =>
{
var mousePos = EyeDropperHelper.GetCursorPosition();
var previewImage = EyeDropperHelper.CaptureRegion(new Int32Rect(mousePos.X - PreviewImageOuterPixelCount, mousePos.Y - PreviewImageOuterPixelCount, 2 * PreviewImageOuterPixelCount + 1, 2 * PreviewImageOuterPixelCount + 1));
var previewBrush = new SolidColorBrush(EyeDropperHelper.GetPixelColor(mousePos));
previewBrush.Freeze();
PART_PreviewImage.Source = previewImage;
SetCurrentValue(PreviewBrushProperty, previewBrush);
});
currentTask = Dispatcher.BeginInvoke(DispatcherPriority.Background, action);
}
protected override void OnPreviewMouseLeftButtonUp(MouseButtonEventArgs e)
{
base.OnPreviewMouseLeftButtonUp(e);
Mouse.Capture(null);
if (!(PART_PreviewToolTip is null))
{
PART_PreviewToolTip.IsOpen = false;
PART_PreviewToolTip.Visibility = Visibility.Collapsed;
}
this.Cursor = Cursors.Arrow;
if (!this.IsMouseOver)
{
var mousePos = EyeDropperHelper.GetCursorPosition();
this.SelectedColor = EyeDropperHelper.GetPixelColor(mousePos);
}
}
