private BudgetEditorDragDropHandler(BudgetEditor budgetEditor, BudgetEditorMasterCategoryRow masterCategoryRow, Point dragStartPosition)
{
this.BudgetEditor = budgetEditor;
this.DragType = BudgetEditorDragTypes.MasterCategory;
this.MasterCategoryRow = masterCategoryRow;
this.DragStartPosition = dragStartPosition;
}
private BudgetEditorCategoryRow GetLastCategory(BudgetEditorMasterCategoryRow masterCategoryRow)
{
int length = masterCategoryRow.ItemContainerGenerator.Items.Count;
var container = masterCategoryRow.ItemContainerGenerator.ContainerFromIndex(length - 1);
return(container.FindChild <BudgetEditorCategoryRow>());
}
private bool IsFirstMasterCategory(BudgetEditorMasterCategoryRow masterCategoryRow)
{
var itemsControl = BudgetEditor.CategoryItemsControl;
var container = VisualTreeHelper.GetParent(masterCategoryRow);
return(itemsControl.ItemContainerGenerator.IndexFromContainer(container) == 0);
}
private void CategoryDragOverEmptyBottomSpace()
{
var lastMasterCategory = GetLastMasterCategory();
TargetMasterCategory = lastMasterCategory;
InsertPosition = lastMasterCategory.ItemContainerGenerator.Items.Count;
DropTargetAdorner = new DropTargetInsertAdorner(lastMasterCategory, DropTargetAdornerLayer, true);
}
private TextBox FindAmountBudgetedTextBox(CategoryMonthViewModel categoryMonth)
{
var masterCategory = categoryMonth.CategoryRowViewModel.MasterCategory;
var category = categoryMonth.CategoryRowViewModel;
BudgetEditorMasterCategoryRow masterCategoryRow = CategoryItemsControl.ItemContainerGenerator.ContainerFromItem(masterCategory).FindChild <BudgetEditorMasterCategoryRow>();
BudgetEditorCategoryRow categoryRow = masterCategoryRow.ItemContainerGenerator.ContainerFromItem(category).FindChild <BudgetEditorCategoryRow>();
var categoryMonthControl = categoryRow.ItemContainerGenerator.ContainerFromItem(categoryMonth).FindChild <BudgetEditorCategoryMonth>();
return(categoryMonthControl.FindName("AmountBudgetedTextbox") as TextBox);
}
private bool IsHalfwayOverHeader(BudgetEditorMasterCategoryRow masterCategoryRow, Point point)
{
var itemsPresenter = masterCategoryRow.FindChild <ItemsPresenter>();
var headerHeight = masterCategoryRow.RenderSize.Height - itemsPresenter.RenderSize.Height;
if (point.Y > headerHeight * 0.66)
{
return(true);
}
return(false);
}
private BudgetEditorMasterCategoryRow GetPreviousMasterCategoryRow(BudgetEditorMasterCategoryRow masterCategoryRow)
{
var itemsControl = BudgetEditor.CategoryItemsControl;
var index = itemsControl.ItemContainerGenerator.IndexFromContainer(VisualTreeHelper.GetParent(masterCategoryRow));
if (index >= 1)
{
var previousContainer = itemsControl.ItemContainerGenerator.ContainerFromIndex(index - 1);
return(previousContainer.FindChild <BudgetEditorMasterCategoryRow>());
}
return(null);
}
private void CategoryDragOverMasterCategoryHeader(BudgetEditorMasterCategoryRow masterCategoryRow, Point masterCategoryRowPoint)
{
if (IsFirstMasterCategory(masterCategoryRow))
{
var categoryRow = masterCategoryRow.ItemContainerGenerator.ContainerFromIndex(0)?.FindChild <BudgetEditorCategoryRow>();
if (categoryRow != null)
{
TargetMasterCategory = masterCategoryRow;
InsertPosition = 0;
DropTargetAdorner = new DropTargetInsertAdorner(categoryRow, DropTargetAdornerLayer, false);
}
}
else
{
if (IsHalfwayOverHeader(masterCategoryRow, masterCategoryRowPoint))
{
var categoryRow = masterCategoryRow.ItemContainerGenerator.ContainerFromIndex(0)?.FindChild <BudgetEditorCategoryRow>();
if (categoryRow != null)
{
TargetMasterCategory = masterCategoryRow;
InsertPosition = 0;
DropTargetAdorner = new DropTargetInsertAdorner(categoryRow, DropTargetAdornerLayer, false);
}
}
else
{
var previousMasterCategory = GetPreviousMasterCategoryRow(masterCategoryRow);
var lastCategory = GetLastCategory(previousMasterCategory);
int length = previousMasterCategory.ItemContainerGenerator.Items.Count;
TargetMasterCategory = previousMasterCategory;
InsertPosition = length;
if (length == 0)
{
DropTargetAdorner = new DropTargetInsertAdorner(previousMasterCategory, DropTargetAdornerLayer, true);
}
else
{
DropTargetAdorner = new DropTargetInsertAdorner(lastCategory, DropTargetAdornerLayer, true);
}
}
}
}
private void CategoryDragOverCategory(Point categoryControlPosition, BudgetEditorMasterCategoryRow masterCategoryRow, UIElement categoryContainer)
{
var categoryItemsControl = BudgetEditor.CategoryItemsControl;
BudgetEditorCategoryRow categoryRow = categoryContainer.FindChild <BudgetEditorCategoryRow>();
var categoryRowPoint = categoryItemsControl.TranslatePoint(categoryControlPosition, categoryRow);
InsertPosition = masterCategoryRow.ItemContainerGenerator.IndexFromContainer(VisualTreeHelper.GetParent(categoryRow));
TargetMasterCategory = masterCategoryRow;
bool isTargetNextRow = categoryRowPoint.Y > categoryRow.RenderSize.Height * 0.66;
if (isTargetNextRow)
{
InsertPosition++;
DropTargetAdorner = new DropTargetInsertAdorner(categoryRow, DropTargetAdornerLayer, true);
}
else
{
DropTargetAdorner = new DropTargetInsertAdorner(categoryRow, DropTargetAdornerLayer, false);
}
}