private void OffsetPanel_MouseMove(object sender, MouseEventArgs e)
{
if (dragging)
{
// Set offset to (mousePos - dragStart)/columnWidth/12 (round to octaves...?)
int multiplier = (e.Location.X < dragStart.X ? -1 : 1); // Preserve sign
if (isAdvanced)
{
int oldOffset = trackSelectionManager.MidiChannelOffsets.ContainsKey(dragTarget.Id) ? trackSelectionManager.MidiChannelOffsets[dragTarget.Id] : 0;
trackSelectionManager.MidiChannelOffsets[dragTarget.Id] = startOffset + (int)Math.Round(((GetDistance(dragStart, e.Location) * multiplier / columnWidth)) / 12) * 12;
if (trackSelectionManager.MidiChannelOffsets[dragTarget.Id] != oldOffset)
{
OffsetPanel.Refresh();
}
}
else
{
int oldOffset = trackSelectionManager.NoteOffset;
trackSelectionManager.NoteOffset = startOffset + (int)Math.Round(((GetDistance(dragStart, e.Location) * multiplier / columnWidth)) / 12) * 12;
if (trackSelectionManager.NoteOffset != oldOffset)
{
OffsetPanel.Refresh();
}
}
}
//OffsetPanel.Refresh(); // See if this is laggy
// Yeah a little
}
private void CreateAndShowMainWindow()
{
// ********* Create the application's main Window and Border and instantiate a OffsetPanel *********
border1 = new Border();
border1.VerticalAlignment = VerticalAlignment.Top;
border1.HorizontalAlignment = HorizontalAlignment.Left;
border1.BorderThickness = new Thickness(2);
border1.BorderBrush = Brushes.DarkOrange;
offsetPanel1 = new OffsetPanel();
offsetPanel1.Width = 500;
offsetPanel1.Height = 500;
offsetPanel1.VerticalAlignment = VerticalAlignment.Stretch;
offsetPanel1.HorizontalAlignment = HorizontalAlignment.Stretch;
// ********* Add a child TextBlock Element *********
txt1 = new TextBlock();
txt1.Text = "This is a line of Text within a TextBlock Element.";
txt1.Background = Brushes.Red;
OffsetPanel.SetOffsetLeft(txt1, 100);
OffsetPanel.SetOffsetTop(txt1, 100);
OffsetPanel.SetInflateSize(txt1, 50);
OffsetPanel.SetShareCoordinates(txt1, true);
// ********* Add a Button Element *********
btn1 = new Button();
btn1.Background = Brushes.RoyalBlue;
btn1.Content = "A Button";
btn1.BorderBrush = Brushes.Black;
OffsetPanel.SetOffsetLeft(btn1, 100);
OffsetPanel.SetOffsetTop(btn1, 100);
OffsetPanel.SetInflateSize(btn1, 50);
OffsetPanel.SetShareCoordinates(btn1, false);
// ********* Add a child Rectangle Element *********
rect1 = new Rectangle();
rect1.Fill = Brushes.Purple;
OffsetPanel.SetOffsetLeft(rect1, 100);
OffsetPanel.SetOffsetTop(rect1, 100);
OffsetPanel.SetInflateSize(rect1, 10);
OffsetPanel.SetShareCoordinates(rect1, false);
// ********* Add the text element defined above as a child of the OffsetPanel *********
offsetPanel1.Children.Add(txt1);
offsetPanel1.Children.Add(btn1);
offsetPanel1.Children.Add(rect1);
// ********* Add the OffsetPanel to the Border *********
border1.Child = offsetPanel1;
// ********* Add the OffsetPanel as a Child of the MainWindow and show the Window *********
mainWindow = new Window();
mainWindow.Content = border1;
mainWindow.Title = "Custom OffsetPanel Sample";
mainWindow.Show();
}
private void OffsetPanel_MouseEnter(object sender, EventArgs e) => OffsetPanel.Refresh();
private void OffsetPanel_Resize(object sender, EventArgs e)
{
OffsetPanel.Refresh();
}
