private void SetupUI()
{
Size actualSize = WorkAreaSize();
if (actualSize.Width < 1 || _data == null || _data.Zones == null || Model == null)
{
return;
}
int spacing = Model.ShowSpacing ? Model.Spacing : 0;
_data.MinZoneWidth = Convert.ToInt32(GridData.Multiplier / actualSize.Width * (MinZoneSize + (2 * spacing)));
_data.MinZoneHeight = Convert.ToInt32(GridData.Multiplier / actualSize.Height * (MinZoneSize + (2 * spacing)));
Preview.Children.Clear();
AdornerLayer.Children.Clear();
Preview.Width = actualSize.Width;
Preview.Height = actualSize.Height;
MagneticSnap snapX = new MagneticSnap(GridData.PrefixSum(Model.ColumnPercents).GetRange(1, Model.ColumnPercents.Count - 1), actualSize.Width);
MagneticSnap snapY = new MagneticSnap(GridData.PrefixSum(Model.RowPercents).GetRange(1, Model.RowPercents.Count - 1), actualSize.Height);
for (int zoneIndex = 0; zoneIndex < _data.Zones.Count; zoneIndex++)
{
// this is needed for the lambda
int zoneIndexCopy = zoneIndex;
var zone = _data.Zones[zoneIndex];
var zonePanel = new GridZone(spacing, snapX, snapY, (orientation, offset) => _data.CanSplit(zoneIndexCopy, offset, orientation), zone);
zonePanel.UpdateShiftState(((App)Application.Current).MainWindowSettings.IsShiftKeyPressed);
Preview.Children.Add(zonePanel);
zonePanel.Split += OnSplit;
zonePanel.MergeDrag += OnMergeDrag;
zonePanel.MergeComplete += OnMergeComplete;
SetZonePanelSize(zonePanel, zone);
zonePanel.LabelID.Content = zoneIndex + 1;
}
foreach (var resizer in _data.Resizers)
{
var resizerThumb = new GridResizer();
resizerThumb.DragStarted += Resizer_DragStarted;
resizerThumb.DragDelta += Resizer_DragDelta;
resizerThumb.DragCompleted += Resizer_DragCompleted;
resizerThumb.Orientation = resizer.Orientation;
AdornerLayer.Children.Add(resizerThumb);
if (resizer.Orientation == Orientation.Horizontal)
{
resizerThumb.LeftReferenceZone = resizer.PositiveSideIndices[0];
resizerThumb.RightReferenceZone = resizer.PositiveSideIndices.Last();
resizerThumb.TopReferenceZone = resizer.PositiveSideIndices[0];
resizerThumb.BottomReferenceZone = resizer.NegativeSideIndices[0];
}
else
{
resizerThumb.LeftReferenceZone = resizer.PositiveSideIndices[0];
resizerThumb.RightReferenceZone = resizer.NegativeSideIndices[0];
resizerThumb.TopReferenceZone = resizer.PositiveSideIndices[0];
resizerThumb.BottomReferenceZone = resizer.PositiveSideIndices.Last();
}
PlaceResizer(resizerThumb);
}
}
private void RenderActualScalePreview(GridLayoutModel grid)
{
int rows = grid.Rows;
int cols = grid.Columns;
double spacing = grid.ShowSpacing ? grid.Spacing : 0;
var rowData = GridData.PrefixSum(grid.RowPercents);
var columnData = GridData.PrefixSum(grid.ColumnPercents);
var workArea = App.Overlay.WorkArea;
Viewbox viewbox = new Viewbox
{
Stretch = Stretch.Uniform,
};
Body.Children.Add(viewbox);
Canvas frame = new Canvas
{
Width = workArea.Width,
Height = workArea.Height,
};
viewbox.Child = frame;
for (int row = 0; row < rows; row++)
{
for (int col = 0; col < cols; col++)
{
int childIndex = grid.CellChildMap[row, col];
if (((row == 0) || (grid.CellChildMap[row - 1, col] != childIndex)) &&
((col == 0) || (grid.CellChildMap[row, col - 1] != childIndex)))
{
// this is not a continuation of a span
Border rect = new Border();
double left = columnData[col] * workArea.Width / GridData.Multiplier;
double top = rowData[row] * workArea.Height / GridData.Multiplier;
int maxRow = row;
while (((maxRow + 1) < rows) && (grid.CellChildMap[maxRow + 1, col] == childIndex))
{
maxRow++;
}
int maxCol = col;
while (((maxCol + 1) < cols) && (grid.CellChildMap[row, maxCol + 1] == childIndex))
{
maxCol++;
}
double right = columnData[maxCol + 1] * workArea.Width / GridData.Multiplier;
double bottom = rowData[maxRow + 1] * workArea.Height / GridData.Multiplier;
left += col == 0 ? spacing : spacing / 2;
right -= maxCol == cols - 1 ? spacing : spacing / 2;
top += row == 0 ? spacing : spacing / 2;
bottom -= maxRow == rows - 1 ? spacing : spacing / 2;
Canvas.SetTop(rect, top);
Canvas.SetLeft(rect, left);
rect.Width = Math.Max(1, right - left);
rect.Height = Math.Max(1, bottom - top);
rect.Style = (Style)FindResource("GridLayoutActualScalePreviewStyle");
frame.Children.Add(rect);
}
}
}
if (App.DebugMode)
{
TextBlock text = new TextBlock();
text.Text = "(" + workArea.X + "," + workArea.Y + ")";
text.FontSize = 42;
frame.Children.Add(text);
}
}