private void LoadScheme(string path)
{
filename = path;
modified = false;
dragElement = null;
connectLine = null;
menuElement = null;
move = false;
scheme?.Dispose();
scheme = null;
if (string.IsNullOrEmpty(path))
{
scheme = new DrawableScheme(pictureBox.Width, pictureBox.Height);
filename = null;
}
else
{
try
{
using (var file = File.Open(path, FileMode.Open))
scheme = DrawableSchemeStorage.Load(file);
}
catch (Exception exception)
{
ShowError(String.Format(Resource.Localization.Error_PathOpen, path), exception);
filename = null;
scheme = new DrawableScheme(pictureBox.Width, pictureBox.Height);
}
}
DrawScheme();
}
private void moveElementToolStripMenuItem_Click(object sender, EventArgs e)
{
modified = true;
toolStripButton_Click(moveButton, null);
dragElement = menuElement;
menuElement = null;
}
private void deleteElementMenuStripItem_Click(object sender, EventArgs e)
{
modified = true;
scheme.RemoveElement(menuElement);
DrawScheme();
menuElement = null;
}
private void createConnectionToolStripMenuItem_Click(object sender, EventArgs e)
{
toolStripButton_Click(connectionButton, null);
if (!(menuElement is Output))
{
modified = true;
connectLine = new Line(menuElement, null);
}
menuElement = null;
}
private void LoadScheme(Scheme source)
{
filename = null;
modified = false;
dragElement = null;
connectLine = null;
menuElement = null;
move = false;
scheme?.Dispose();
scheme = DrawableScheme.FromScheme(source, pictureBox.Width, pictureBox.Height);
DrawScheme();
}
private void renameElementToolStripMenuItem_Click(object sender, EventArgs e)
{
using (var dialog = new NameDialog())
if (dialog.ShowDialog() == DialogResult.OK && !string.IsNullOrEmpty(dialog.NewName))
{
modified = true;
foreach (Output output in scheme.Elements.Where(x => x is Output && (x as Output).Input == menuElement.Name))
{
output.Input = dialog.NewName;
}
foreach (Component component in scheme.Elements.Where(x => x is Component && (x as Component).Input.Contains(menuElement.Name)))
{
component.RemoveInput(menuElement.Name);
component.AddInput(dialog.NewName);
}
menuElement.Name = dialog.NewName;
DrawScheme();
menuElement = null;
}
}
public ElementMovedEventArgs(IMoveableElement movedElement, double horizontalChange, double verticalChange)
{
MovedElement = movedElement;
HorizontalChange = horizontalChange;
VerticalChange = verticalChange;
}
public Line(IMoveableElement element1, IMoveableElement element2)
{
connection = new Tuple <IMoveableElement, IMoveableElement>(element1, element2);
}
private void listBox_SelectedIndexChanged(object sender, EventArgs e)
{
modified = true;
string item = listBox.SelectedItem as string;
switch (item)
{
case "Input":
{
var max_input_number = (scheme.Inputs.Count > 0 ? scheme.Inputs
.Select(x =>
{
int number;
if (int.TryParse(x.Name.Substring(1), out number))
{
return(number);
}
else
{
return(0);
}
})
.Max() : 0);
dragElement = new DrawableInput(
$"x{max_input_number + 1}",
0, 0,
DrawableScheme.ElementWidth,
DrawableScheme.ElementHeight
);
}
break;
case "Output":
{
var max_output_number = (scheme.Outputs.Count > 0 ? scheme.Outputs
.Select(x =>
{
int number;
if (int.TryParse(x.Name.Substring(1), out number))
{
return(number);
}
else
{
return(0);
}
})
.Max() : 0);
dragElement = new DrawableOutput(
$"y{max_output_number + 1}",
null,
0, 0,
DrawableScheme.ElementWidth,
DrawableScheme.ElementHeight
);
}
break;
default:
{
ComponentType componentType;
if (Enum.TryParse(item, out componentType))
{
var max_component_number = (scheme.Components.Count > 0 ? scheme.Components
.Select(x =>
{
int number;
if (int.TryParse(x.Name.Substring(1), out number))
{
return(number);
}
else
{
return(0);
}
})
.Max() : 0);
dragElement = new DrawableComponent(
$"c{max_component_number + 1}",
componentType,
new string[] { },
0, 0,
DrawableScheme.ElementWidth,
DrawableScheme.ElementHeight
);
}
}
break;
}
}
private void pictureBox_MouseDown(object sender, MouseEventArgs e)
{
if (e.Button == MouseButtons.Left && ModifierKeys == Keys.Control)
{
move = true;
moveLastLocation = e.Location;
pictureBox.Cursor = Cursors.NoMove2D;
}
else if (e.Button == MouseButtons.Left)
{
if (dragElement != null)
{
var overflowElements = scheme.GetElementsAtRectangle(
dragElement.X,
dragElement.Y,
dragElement.Width,
dragElement.Height
);
if (overflowElements.Count() == 0 || (overflowElements.Count() == 1 && overflowElements.Contains(dragElement)))
{
dragElement = null;
}
}
else if (moveButton.Checked)
{
modified = true;
dragElement = scheme.GetElementAtLocation(e.Location) as IMoveableElement;
}
if (connectLine != null)
{
var underMouseElement = scheme.GetElementAtLocation(e.Location) as IMoveableElement;
if (underMouseElement != null && underMouseElement != connectLine.connection.Item1)
{
connectLine.connection = new Tuple <IMoveableElement, IMoveableElement>(
connectLine.connection.Item1,
underMouseElement
);
var add = !scheme.Elements.Contains(connectLine);
if (connectLine.connection.Item2 is Component)
{
((Component)connectLine.connection.Item2).AddInput(connectLine.connection.Item1.Name);
}
else if (connectLine.connection.Item2 is Output && string.IsNullOrEmpty(((Output)connectLine.connection.Item2).Input))
{
((Output)connectLine.connection.Item2).Input = connectLine.connection.Item1.Name;
}
else
{
add = false;
}
if (add)
{
scheme.AddElement(connectLine);
DrawScheme();
connectLine = null;
}
}
}
else if (connectionButton.Checked)
{
var underMouseElement = scheme.GetElementAtLocation(e.Location) as IMoveableElement;
if (underMouseElement != null && !(underMouseElement is Output))
{
modified = true;
connectLine = new Line(underMouseElement, null);
}
}
if (deleteButton.Checked)
{
var toDelete = scheme.GetElementAtLocation(e.Location);
if (toDelete != null)
{
modified = true;
scheme.RemoveElement(toDelete);
DrawScheme();
}
}
}
else if (e.Button == MouseButtons.Right)
{
if (connectLine != null)
{
DrawScheme();
}
dragElement = null;
connectLine = null;
menuElement = scheme.GetElementAtLocation(e.Location) as IMoveableElement;
pictureBox.ContextMenuStrip = (menuElement == null ? schemeMenuStrip : elementMenuStrip);
}
}