/// <summary>
/// Draw all the available labels onto the screen (drawArea).
/// </summary>
/// <param name="drawArea">The area we are drawing on</param>
public void Draw(DrawArea drawArea)
{
this.drawArea = drawArea;
if (!Properties.Settings.Default.showLabels)
{
return;
}
float closestDistanceSquared = float.MaxValue;
foreach (StorableLabel label in labels.Labels)
{
if (!dragging || !label.Equals(draggingLabelToReplace))
{
DrawLabel(label);
}
float distanceSquared = (float)WorldLocation.GetDistanceSquared2D(label.WorldLocation, drawArea.MouseLocation);
if (distanceSquared < closestDistanceSquared)
{
closestDistanceSquared = distanceSquared;
closestToMouseLabel = label;
}
}
if (dragging)
{
DrawLabel(draggingLabel);
}
}
/// <summary>
/// Remove a label from the list
/// </summary>
/// <param name="oldLabel">the label to remove</param>
internal void Delete(StorableLabel oldLabel)
{
if (_labels.Contains(oldLabel))
{
_labels.Remove(oldLabel);
}
}
/// <summary>
/// Replace an existing label with a new one in the same place. This acts as a modification of the label which itself
/// is not possible since labels are immutable
/// </summary>
/// <param name="oldLabel">The label to be replaced (should already be in the list of labels</param>
/// <param name="newLabel">The new lable to put in the list</param>
internal void Replace(StorableLabel oldLabel, StorableLabel newLabel)
{
int index = _labels.IndexOf(oldLabel);
if (index != -1)
{
_labels[index] = newLabel;
}
}
/// <summary>
/// Callback that is called when the user clicks on the menuitem connected to a new label
/// </summary>
/// <param name="oldLabel">The old label that needs to be replaced</param>
/// <param name="mouseX">Current X-location of the mouse to determine popup location</param>
/// <param name="mouseY">Current Y-location of the mouse to determine popu location</param>
private void ModifyLabel(StorableLabel oldLabel, int mouseX, int mouseY)
{
var labelInputPopup = new EditLabel(oldLabel.LabelText, mouseX, mouseY,
(newLabelText) =>
{
if (newLabelText == null)
{
labels.Delete(oldLabel);
}
else
{
var newLabel = new StorableLabel(oldLabel.WorldLocation, newLabelText);
labels.Replace(oldLabel, newLabel);
}
}, allowDelete: true);
TrackViewer.Localize(labelInputPopup);
labelInputPopup.ShowDialog();
}
/// <summary>
/// Do the dragging itself, meaning moving the label to a different position and show that
/// </summary>
internal void OnLeftMouseMoved()
{
if (!dragging)
{
return;
}
//We have three locations. Where the original/reference label. Where the dragging starts, and where the mouse now is
//The new location is then 'original' + 'current' - 'start'.
draggingStartLocation = draggingStartLocation.NormalizeTo(drawArea.MouseLocation.TileX, drawArea.MouseLocation.TileZ);
WorldLocation shiftedLocation = new WorldLocation(
draggingLabelToReplace.WorldLocation.TileX + drawArea.MouseLocation.TileX - draggingStartLocation.TileX,
draggingLabelToReplace.WorldLocation.TileZ + drawArea.MouseLocation.TileZ - draggingStartLocation.TileZ,
draggingLabelToReplace.WorldLocation.Location.X + drawArea.MouseLocation.Location.X - draggingStartLocation.Location.X,
0,
draggingLabelToReplace.WorldLocation.Location.Z + drawArea.MouseLocation.Location.Z - draggingStartLocation.Location.Z,
true);
draggingLabel = new StorableLabel(shiftedLocation, draggingLabelToReplace.LabelText);
}
/// <summary>
/// Initiate dragging
/// </summary>
internal void OnLeftMouseClick()
{
draggingStartLocation = drawArea.MouseLocation;
draggingLabelToReplace = closestToMouseLabel;
dragging = true;
}
/// <summary>
/// Helper routine to just draw one label
/// </summary>
/// <param name="label">The lable to draw</param>
private void DrawLabel(StorableLabel label)
{
drawArea.DrawExpandingString(label.WorldLocation, label.LabelText, 0, -fontHeight / 2);
}
/// <summary>
/// Add a label
/// </summary>
/// <param name="location">The location in MSTS coordinates of the label</param>
/// <param name="text">The text of the label</param>
public void Add(WorldLocation location, string text)
{
var newLabel = new StorableLabel(location, text);
_labels.Add(newLabel);
}
