private void Button_PreviewMouseRightButtonDown(object sender, MouseButtonEventArgs e)
{
Button button = sender as Button;
if (button?.DataContext == null)
{
return;
}
GridCell cell = button.DataContext as GridCell;
if (cell == null)
{
return;
}
GridLayoutViewModel vm = GridLayoutViewModel;
if (vm == null)
{
return;
}
if (vm.SelectedCells.Contains(cell))
{
return;
}
vm.ClearSelection();
vm.AddToSelection(cell);
}
private void GridLayout_Loaded(object sender, RoutedEventArgs e)
{
GridLayoutViewModel vm = GridLayoutViewModel;
if (vm == null)
{
return;
}
}
public MainWindow()
{
InitializeComponent();
GridLayoutViewModel vm = new GridLayoutViewModel();
this.GridLayout.DataContext = vm;
this.DataContext = vm;
//int rows = 10;
//int cols = 10;
//vm.CreateGrid(rows, cols);
//vm.MergeCells(0, 0, 2, 2);
//vm.MergeCells(2, 2, 3, 3);
//vm.MergeCells(5, 5, 2, 2);
//vm.MergeCells(7, 7, 3, 3);
int rows = 3;
int cols = 3;
vm.CreateGrid(rows, cols);
vm.Merge(0, 0, 1, 2);
//vm.MergeCells(1, 1, 1, 2);
//vm.MergeCells(2, 0, 1, 3);
}
private void Button_MouseDoubleClick(object sender, MouseButtonEventArgs e)
{
Button button = sender as Button;
if (button?.DataContext == null)
{
return;
}
GridCell cell = button.DataContext as GridCell;
if (cell == null)
{
return;
}
GridLayoutViewModel vm = GridLayoutViewModel;
if (vm == null)
{
return;
}
vm.ClearSelection();
if (vm.EditedCell != null)
{
vm.EditedCell.IsEditing = false;
}
cell.IsEditing = true;
vm.EditedCell = cell;
IEnumerable <TextBox> textBoxes = Utils.FindVisualChildren <TextBox>(sender as DependencyObject);
TextBox textBox = textBoxes.Cast <TextBox>().First();
if (textBox != null)
{
textBox.Focusable = true;
textBox.Focus();
}
}
private void Button_PreviewMouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
Button button = sender as Button;
if (button?.DataContext == null)
{
return;
}
GridCell gridCellVM = button.DataContext as GridCell;
if (gridCellVM == null)
{
return;
}
GridLayoutViewModel vm = GridLayoutViewModel;
if (vm == null)
{
return;
}
if ((Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift)) && vm.SelectedCells.Count > 0)
{
GridCell lastSelected = vm.SelectedCells[vm.SelectedCells.Count - 1];
System.Drawing.Rectangle extent = System.Drawing.Rectangle.Union(lastSelected.CellExtent, gridCellVM.CellExtent);
Dictionary <GridCell, GridCell> selectSet = new Dictionary <GridCell, GridCell>();
foreach (GridCell cell in vm.SelectedCells)
{
selectSet[cell] = cell;
extent = System.Drawing.Rectangle.Union(cell.CellExtent, extent);
}
while (true)
{
int selCount = 0;
foreach (GridCell cell in vm.GridElements)
{
if (cell.CellExtent.IntersectsWith(extent))
{
if (selectSet.ContainsKey(cell))
{
continue;
}
extent = System.Drawing.Rectangle.Union(cell.CellExtent, extent);
vm.AddToSelection(cell);
selectSet[cell] = cell;
selCount++;
}
else
{
cell.IsHighlighted = false;
}
}
if (selCount == 0)
{
break;
}
}
}
else
{
if (!Keyboard.IsKeyDown(Key.LeftCtrl) && !Keyboard.IsKeyDown(Key.RightCtrl))
{
vm.ClearSelection();
}
if (vm.SelectedCells.Contains(gridCellVM))
{
gridCellVM.IsSelected = false;
gridCellVM.IsHighlighted = false;
vm.RemoveFromSelection(gridCellVM);
}
else
{
gridCellVM.IsSelected = true;
gridCellVM.IsHighlighted = true;
vm.AddToSelection(gridCellVM);
}
if (vm.SelectedCells.Count == 0)
{
return;
}
}
}
