public bool IntersectsAnyPU(MathCore.LineSegment segment, params AbstractProcessUnit[] exclusionList)
{
foreach (UIElement uie in Children)
{
ProcessUnitControl puc = uie as ProcessUnitControl;
if (null == puc)
{
// Not a process unit control
continue;
}
if (null != exclusionList)
{
bool goNext = false;
foreach (AbstractProcessUnit excludeMe in exclusionList)
{
// See if we want to exclude this one
if (object.ReferenceEquals(puc.ProcessUnit, excludeMe))
{
goNext = true;
break;
}
}
if (goNext)
{
continue;
}
}
// Build a rectangle for the control
Point pt = new Point(
(double)puc.GetValue(Canvas.LeftProperty),
(double)puc.GetValue(Canvas.TopProperty));
MathCore.Rectangle r;
if (double.IsNaN(puc.Width) || double.IsNaN(puc.Height) ||
0.0 == puc.Width || 0.0 == puc.Height)
{
// Silverlight UI stuff can be funky so we have a condition to use
// hard coded dimensions as opposed to getting them from the control
r = MathCore.Rectangle.CreateFromCanvasRect(pt, 40.0, 40.0);
}
else
{
r = MathCore.Rectangle.CreateFromCanvasRect(pt, puc.Width, puc.Height);
}
if (r.GetIntersections(segment).Length > 0)
{
return(true);
}
}
return(false);
}
public SubprocessChooserWindow(ProcessUnitControl lpu, Workspace workspace)
{
InitializeComponent();
// Store a reference to the process unit and workspace
m_lpu = lpu;
m_workspace = workspace;
if (null != lpu)
{
// Initialize the color options
bool didFirst = false;
OptionsStackPanel.Children.Clear();
foreach (Core.NamedColor nc in Core.NamedColors.All)
{
Border b = new Border();
b.BorderBrush = new SolidColorBrush(Colors.LightGray);
b.CornerRadius = new CornerRadius(3.0);
b.BorderThickness = new Thickness(2.0);
b.Background = new SolidColorBrush(nc.Color);
if (didFirst)
{
b.Margin = new Thickness(3.0, 0.0, 3.0, 3.0);
}
else
{
b.Margin = new Thickness(3.0);
didFirst = true;
}
// Create the radio button to put in the border
RadioButton rb = new RadioButton();
rb.GroupName = "A";
rb.Content = nc.Name;
rb.Tag = nc;
b.Child = rb;
// Setup check-change event
rb.Checked += new RoutedEventHandler(rb_Checked);
// If the color matches the existing subprocess then check it
if (nc.Color.Equals(lpu.Subprocess))
{
rb.IsChecked = true;
}
// Add it to the stack panel
OptionsStackPanel.Children.Add(b);
}
}
}
public static ProcessUnitControl CreateOnCanvas(DrawingCanvas canvas,
AbstractProcessUnit processUnit)
{
ProcessUnitControl pu = new ProcessUnitControl(canvas, processUnit);
canvas.AddNewChild(pu);
// Set the initial location
pu.SetValue(Canvas.LeftProperty, processUnit.Location.X - pu.Width / 2.0);
pu.SetValue(Canvas.TopProperty, processUnit.Location.Y - pu.Height / 2.0);
// Make sure we have the right z-order
pu.SetValue(Canvas.ZIndexProperty, 1);
return(pu);
}
public ProcessUnitControl GetProcessUnitControl(AbstractProcessUnit unit)
{
foreach (UIElement uie in Children)
{
if (!(uie is ProcessUnitControl))
{
continue;
}
ProcessUnitControl pu = uie as ProcessUnitControl;
if (object.ReferenceEquals(pu.ProcessUnit, unit))
{
return(pu);
}
}
return(null);
}
/// <summary>
/// Callback for when the collection of process units in the workspace changes. We must update
/// the UI to match the workspace.
/// </summary>
private void ProcessUnits_CollectionChanged(object sender, EventArgs e)
{
// First go through all process unit controls on the canvas and remove ones that are
// no longer in the workspace.
List <AbstractProcessUnit> unitsThatHaveControls =
new List <AbstractProcessUnit>();
for (int i = 0; i < Children.Count; i++)
{
ProcessUnitControl lpu = Children[i] as ProcessUnitControl;
if (null == lpu)
{
continue;
}
// Add it to a list that we'll use later
unitsThatHaveControls.Add(lpu.ProcessUnit);
if (!m_workspace.ProcessUnits.Contains(lpu.ProcessUnit))
{
// Tell the process unit to remove itself. It will also remove any
// controls used to represent comments.
lpu.RemoveSelfFromCanvas(this);
// Reset the index since a bunch of child controls could have potentially just
// been removed
i = -1;
}
}
// Now go through and add any process units that are missing
foreach (AbstractProcessUnit apu in m_workspace.ProcessUnits)
{
if (!unitsThatHaveControls.Contains(apu))
{
// Create the process unit. The static method will create it, put it on
// the canvas, and take care of all comment sticky notes as well.
ProcessUnitControl lpuNew = ProcessUnitControl.CreateOnCanvas(this, apu);
}
}
}
/// <summary>
/// Refreshes the control palette with appropriate controls based on the difficulty setting. This
/// must be called each time the user changes the difficulty setting in the application.
/// </summary>
public void RefreshPalette(OptionDifficultySetting setting)
{
// Show or hide the heat stream button based on the setting
if ((new HeatStream(-1)).IsAvailableWithDifficulty(setting))
{
HeatStreamButton.Visibility = System.Windows.Visibility.Visible;
}
else
{
HeatStreamButton.Visibility = System.Windows.Visibility.Collapsed;
}
// Now we use reflection to create the process unit buttons
// First clear the content in the process unit stack panel
ProcessUnitsPanel.Children.Clear();
// We will create potentially multiple stack panels for rows of buttons
StackPanel spPUs = null;
// Keep track of how many buttons we create
int puBtns = 0;
// Use reflection to find appropriate process units and streams for the palette
Assembly a = typeof(Logic.AbstractProcessUnit).Assembly;
foreach (Type t in a.GetTypes())
{
// Ignore abstract types
if (t.IsAbstract)
{
continue;
}
// We only are interested in types that inherit from AbstractProcessUnit
if (t.IsSubclassOf(typeof(AbstractProcessUnit)) && !t.IsAbstract)
{
// We've found a potential process unit, but we need to make sure that
// it can be created under the specified difficulty setting
AbstractProcessUnit unit =
Activator.CreateInstance(t, (int)-1) as AbstractProcessUnit;
if (unit.IsAvailableWithDifficulty(setting))
{
if (0 == (puBtns % m_buttonsPerRow))
{
// Create a new row
spPUs = new StackPanel();
spPUs.Orientation = Orientation.Horizontal;
// Add the first button to it
spPUs.Children.Add(CreateButton(
ProcessUnitControl.GetIconSource(t), unit.Description, t));
ProcessUnitsPanel.Children.Add(spPUs);
}
else
{
spPUs.Children.Add(CreateButton(
ProcessUnitControl.GetIconSource(t), unit.Description, t));
}
puBtns++;
}
}
}
}
public static MathCore.Vector ComputeNewCommentNoteLocation(DrawingCanvas canvas, object parentControl,
double controlWidth = 100.0, double controlHeight = 100.0)
{
// First resolve the "center point" of the parent object. Also get a reference to the collection
// of comments.
Point location;
IList <StickyNote> comments;
ProcessUnitControl lpu = parentControl as ProcessUnitControl;
PFD.Streams.StreamControl stream = parentControl as PFD.Streams.StreamControl;
if (null != lpu)
{
location = lpu.Location;
comments = lpu.ProcessUnit.Comments;
}
else if (null != stream)
{
location = stream.StreamLineMidpoint;
comments = stream.Stream.Comments;
}
else
{
throw new ArgumentException(
"Parent control for a comment sticky note must be a stream or process unit " +
"control.\n Method: ComputeNewCommentNoteLocation");
}
// Get a reference to the workspace. We will look at other sticky notes in this workspace to
// try to avoid direct overlap.
Workspace ws = canvas.GetWorkspace();
MathCore.Vector loc;
int attempts = 0;
while (true)
{
// Compute a location
double radius = 150.0;
double angle = (double)(comments.Count % 6) * 60.0 / 180.0 * Math.PI;
loc = new MathCore.Vector(
location.X + radius * Math.Cos(angle),
location.Y + radius * Math.Sin(angle));
// Make sure this location wouldn't make the control go off the canvas
if (loc.X - (controlWidth / 2.0) < 0.0 ||
loc.Y - (controlHeight / 2.0) < 0.0)
{
attempts++;
}
else if ((null != stream && stream.Stream.ContainsCommentWithLocation(loc.X, loc.Y)) ||
(null != lpu && lpu.ProcessUnit.ContainsCommentWithLocation(loc.X, loc.Y)))
{
attempts++;
}
else
{
// This means the location is ok and we can return it
return(loc);
}
// Try cascading if radial position failed
if (attempts > 6)
{
// Reset attempts because we're about to try another method of positioning
attempts = 0;
double offset = 10.0;
while (true)
{
loc.X = location.X + radius + offset;
loc.Y = location.Y + offset;
// Make sure this location wouldn't make the control go off the canvas
if (loc.X - (controlWidth / 2.0) < 0.0 ||
loc.Y - (controlHeight / 2.0) < 0.0)
{
attempts++;
}
else if ((null != stream && stream.Stream.ContainsCommentWithLocation(loc.X, loc.Y)) ||
(null != lpu && lpu.ProcessUnit.ContainsCommentWithLocation(loc.X, loc.Y)))
{
attempts++;
}
else
{
// This means the location is ok and we can return it
return(loc);
}
attempts++;
if (attempts > 50)
{
// Just give up and choose an arbitrary position
return(new MathCore.Vector(location.X + radius, location.Y));
}
// Increase the offset for the next attempt
offset += 10.0;
}
}
}
}
public void SetCommentObject(StickyNote comment, object parent)
{
if (null != m_sticky)
{
// Remove event handler before changing this value
m_sticky.PropertyChanged -= this.StickyNote_PropertyChanged;
}
if (null != m_basic)
{
m_basic.OnTextChanged -= this.BasicComment_OnTextChanged;
}
// IMPORTANT: Unsubscribe from parent control property changes (if applicable)
if (null != m_parentObject)
{
if (m_parentObject is AbstractProcessUnit)
{
(m_parentObject as AbstractProcessUnit).PropertyChanged -= this.ParentPU_PropertyChanged;
}
else if (m_parentObject is AbstractStream)
{
(m_parentObject as AbstractStream).PropertyChanged -= this.ParentStream_PropertyChanged;
}
}
// Store references
m_basic = null;
m_sticky = comment;
m_parentObject = parent;
AbstractStream parentStream = parent as AbstractStream;
AbstractProcessUnit parentAPU = parent as AbstractProcessUnit;
// Update the UI elements if the comment is not null
if (null != m_sticky)
{
CommentTextBox.Text = m_sticky.Text;
UserNameLabel.Content = m_sticky.UserName;
// Subsribe to property changes
m_sticky.PropertyChanged += this.StickyNote_PropertyChanged;
// Allow editing but not deletion
CommentTextBox.IsReadOnly = false;
XLabel.Visibility = System.Windows.Visibility.Collapsed;
// Show or hide the icon based on the parent
if (null != parentStream)
{
// Get the right icon for this type of stream
string iconSource = PFD.Streams.StreamControl.GetIconSource(parent.GetType());
BitmapImage bmp = new BitmapImage();
bmp.UriSource = new Uri(iconSource, UriKind.Relative);
IconImage.SetValue(Image.SourceProperty, bmp);
// Make sure the icon is visible
IconImage.Visibility = System.Windows.Visibility.Visible;
TitleBarGrid.ColumnDefinitions[0].Width = new GridLength(20.0);
// Give the icon a tooltip that tells what this is a comment for
ToolTipService.SetToolTip(IconImage, "Comment for stream #" +
parentStream.Id);
// Subscribe to property changes for the stream
parentStream.PropertyChanged += new PropertyChangedEventHandler(ParentStream_PropertyChanged);
}
else if (null != parentAPU)
{
// Get the right icon for this type of process unit
string iconSource = ProcessUnitControl.GetIconSource(parent.GetType());
BitmapImage bmp = new BitmapImage();
bmp.UriSource = new Uri(iconSource, UriKind.Relative);
IconImage.SetValue(Image.SourceProperty, bmp);
// Make sure the icon is visible
IconImage.Visibility = System.Windows.Visibility.Visible;
TitleBarGrid.ColumnDefinitions[0].Width = new GridLength(20.0);
// Give the icon a tooltip that tells what this is a comment for
ToolTipService.SetToolTip(IconImage, "Comment for " +
(m_parentObject as AbstractProcessUnit).Label);
// Subscribe to property changes for the process unit
parentAPU.PropertyChanged += new PropertyChangedEventHandler(ParentPU_PropertyChanged);
}
else
{
// Make sure the icon is hidden
IconImage.Visibility = System.Windows.Visibility.Collapsed;
TitleBarGrid.ColumnDefinitions[0].Width = new GridLength(0.0);
}
}
}
