2019-12-13 16:11:55 -05:00

348 lines
12 KiB
C#

using System;
using System.Drawing;
using System.Linq;
using System.Windows.Forms;
using ApplicationServices;
using DataLayer;
using Dinah.Core.Collections.Generic;
using Dinah.Core.DataBinding;
using Dinah.Core.Windows.Forms;
using LibationWinForms.Dialogs;
namespace LibationWinForms
{
// INSTRUCTIONS TO UPDATE DATA_GRID_VIEW
// - delete current DataGridView
// - view > other windows > data sources
// - refresh
// OR
// - Add New Data Source
// Object. Next
// LibationWinForms
// AudibleDTO
// GridEntry
// - go to Design view
// - click on Data Sources > ProductItem. drowdown: DataGridView
// - drag/drop ProductItem on design surface
public partial class ProductsGrid : UserControl
{
public event EventHandler<int> VisibleCountChanged;
public event EventHandler BackupCountsChanged;
private const string EDIT_TAGS = "Edit Tags";
private const string LIBERATE = "Liberate";
// alias
private DataGridView dataGridView => gridEntryDataGridView;
private LibationContext context;
public ProductsGrid()
{
InitializeComponent();
formatDataGridView();
addLiberateButtons();
addEditTagsButtons();
formatColumns();
Disposed += (_, __) => context?.Dispose();
manageLiveImageUpdateSubscriptions();
}
private void formatDataGridView()
{
dataGridView.Dock = DockStyle.Fill;
dataGridView.AllowUserToAddRows = false;
dataGridView.AllowUserToDeleteRows = false;
dataGridView.AutoGenerateColumns = false;
dataGridView.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.AutoSize;
dataGridView.DefaultCellStyle.WrapMode = DataGridViewTriState.True;
dataGridView.ReadOnly = true;
dataGridView.RowHeadersVisible = false;
// adjust height for 80x80 pictures.
// this must be done before databinding. or can alter later by iterating through rows
dataGridView.RowTemplate.Height = 82;
dataGridView.CellFormatting += replaceFormatted;
dataGridView.CellFormatting += hiddenFormatting;
// sorting breaks filters. must reapply filters after sorting
dataGridView.Sorted += (_, __) => filter();
}
#region format text cells. ie: not buttons
private void replaceFormatted(object sender, DataGridViewCellFormattingEventArgs e)
{
var col = ((DataGridView)sender).Columns[e.ColumnIndex];
if (col is DataGridViewTextBoxColumn textCol && GetGridEntry(e.RowIndex).TryDisplayValue(textCol.Name, out string value))
e.Value = value;
}
private void hiddenFormatting(object sender, DataGridViewCellFormattingEventArgs e)
{
var dgv = (DataGridView)sender;
// no action needed for buttons
if (e.RowIndex < 0 || dgv.Columns[e.ColumnIndex] is DataGridViewButtonColumn)
return;
var isHidden = GetGridEntry(e.RowIndex).TagsEnumerated.Contains("hidden");
dgv.Rows[e.RowIndex].Cells[e.ColumnIndex].Style
= isHidden
? new DataGridViewCellStyle { ForeColor = Color.LightGray }
: dgv.DefaultCellStyle;
}
#endregion
#region liberation buttons
private void addLiberateButtons()
{
dataGridView.Columns.Insert(0, new DataGridViewButtonColumn { HeaderText = LIBERATE });
dataGridView.CellPainting += liberate_Paint;
dataGridView.CellContentClick += liberate_Click;
}
private void liberate_Paint(object sender, DataGridViewCellPaintingEventArgs e)
{
var dgv = (DataGridView)sender;
if (!isColumnValid(dgv, e.RowIndex, e.ColumnIndex, LIBERATE))
return;
dgv.Rows[e.RowIndex].Cells[e.ColumnIndex].Value = GetGridEntry(e.RowIndex).Download_Status;
}
private async void liberate_Click(object sender, DataGridViewCellEventArgs e)
{
var dgv = (DataGridView)sender;
if (!isColumnValid(dgv, e.RowIndex, e.ColumnIndex, LIBERATE))
return;
var productId = GetGridEntry(e.RowIndex).GetBook().AudibleProductId;
// if liberated, open explorer to file
if (FileManager.AudibleFileStorage.Audio.Exists(productId))
{
var filePath = FileManager.AudibleFileStorage.Audio.GetPath(productId);
System.Diagnostics.Process.Start("explorer.exe", $"/select, \"{filePath}\"");
}
// else liberate
else
{
var backupBook = BookLiberation.ProcessorAutomationController.GetWiredUpBackupBook((_, __) => RefreshRow(productId));
await BookLiberation.ProcessorAutomationController.RunSingleBackupAsync(backupBook, productId);
}
}
#endregion
public void RefreshRow(string productId)
{
var rowId = GetRowId((ge) => ge.GetBook().AudibleProductId == productId);
// update cells incl Liberate button text
dataGridView.InvalidateRow(rowId);
BackupCountsChanged?.Invoke(this, EventArgs.Empty);
}
#region tag buttons
private void addEditTagsButtons()
{
dataGridView.Columns.Add(new DataGridViewButtonColumn { HeaderText = EDIT_TAGS });
dataGridView.CellPainting += editTags_Paint;
dataGridView.CellContentClick += editTags_Click;
}
private void editTags_Paint(object sender, DataGridViewCellPaintingEventArgs e)
{
// DataGridView Image for Button Column: https://stackoverflow.com/a/36253883
var dgv = (DataGridView)sender;
if (!isColumnValid(dgv, e.RowIndex, e.ColumnIndex, EDIT_TAGS))
return;
var displayTags = GetGridEntry(e.RowIndex).TagsEnumerated.ToList();
var cell = dgv.Rows[e.RowIndex].Cells[e.ColumnIndex];
if (displayTags.Any())
cell.Value = string.Join("\r\n", displayTags);
else // no tags: use image
{
// clear tag text
cell.Value = "";
var image = Properties.Resources.edit_tags_25x25;
e.Paint(e.CellBounds, DataGridViewPaintParts.All);
var w = image.Width;
var h = image.Height;
var x = e.CellBounds.Left + (e.CellBounds.Width - w) / 2;
var y = e.CellBounds.Top + (e.CellBounds.Height - h) / 2;
e.Graphics.DrawImage(image, new Rectangle(x, y, w, h));
e.Handled = true;
}
}
private void editTags_Click(object sender, DataGridViewCellEventArgs e)
{
// handle grid button click: https://stackoverflow.com/a/13687844
var dgv = (DataGridView)sender;
if (!isColumnValid(dgv, e.RowIndex, e.ColumnIndex, EDIT_TAGS))
return;
var liveGridEntry = GetGridEntry(e.RowIndex);
// EditTagsDialog should display better-formatted title
liveGridEntry.TryDisplayValue(nameof(liveGridEntry.Title), out string value);
var editTagsForm = new EditTagsDialog(value, liveGridEntry.Tags);
if (editTagsForm.ShowDialog() != DialogResult.OK)
return;
var qtyChanges = context.UpdateTags(liveGridEntry.GetBook(), editTagsForm.NewTags);
if (qtyChanges == 0)
return;
// force a re-draw, and re-apply filters
// needed to update text colors
dgv.InvalidateRow(e.RowIndex);
filter();
}
#endregion
private static bool isColumnValid(DataGridView dgv, int rowIndex, int colIndex, string colName)
{
var col = dgv.Columns[colIndex];
return rowIndex >= 0 && col.HeaderText == colName && col is DataGridViewButtonColumn;
}
private void formatColumns()
{
for (var i = dataGridView.ColumnCount - 1; i >= 0; i--)
{
var col = dataGridView.Columns[i];
// initial HeaderText is the lookup name from GridEntry class. any formatting below won't change this
col.Name = col.HeaderText;
if (!(col is DataGridViewImageColumn || col is DataGridViewButtonColumn))
col.SortMode = DataGridViewColumnSortMode.Automatic;
col.HeaderText = col.HeaderText.Replace("_", " ");
col.Width = col.Name switch
{
nameof(GridEntry.Cover) => 80,
nameof(GridEntry.Title) => col.Width * 2,
nameof(GridEntry.Misc) => (int)(col.Width * 1.35),
var n when n.In(nameof(GridEntry.My_Rating), nameof(GridEntry.Product_Rating)) => col.Width + 8,
_ => col.Width
};
}
}
#region live update newly downloaded and cached images
private void manageLiveImageUpdateSubscriptions()
{
FileManager.PictureStorage.PictureCached += crossThreadImageUpdate;
Disposed += (_, __) => FileManager.PictureStorage.PictureCached -= crossThreadImageUpdate;
}
private void crossThreadImageUpdate(object _, string pictureId)
=> dataGridView.UIThread(() => updateRowImage(pictureId));
private void updateRowImage(string pictureId)
{
var rowId = GetRowId((ge) => ge.GetBook().PictureId == pictureId);
if (rowId > -1)
dataGridView.InvalidateRow(rowId);
}
#endregion
private bool hasBeenDisplayed = false;
public void Display()
{
if (hasBeenDisplayed)
return;
hasBeenDisplayed = true;
//
// transform into sorted GridEntry.s BEFORE binding
//
context = DbContexts.GetContext();
var lib = context.GetLibrary_Flat_WithTracking();
// if no data. hide all columns. return
if (!lib.Any())
{
for (var i = dataGridView.ColumnCount - 1; i >= 0; i--)
dataGridView.Columns.RemoveAt(i);
return;
}
var orderedGridEntries = lib
.Select(lb => new GridEntry(lb)).ToList()
// default load order
.OrderByDescending(ge => ge.Purchase_Date)
//// more advanced example: sort by author, then series, then title
//.OrderBy(ge => ge.Authors)
// .ThenBy(ge => ge.Series)
// .ThenBy(ge => ge.Title)
.ToList();
//
// BIND
//
gridEntryBindingSource.DataSource = orderedGridEntries.ToSortableBindingList();
//
// FILTER
//
filter();
BackupCountsChanged?.Invoke(this, EventArgs.Empty);
}
#region filter
string _filterSearchString;
private void filter() => Filter(_filterSearchString);
public void Filter(string searchString)
{
_filterSearchString = searchString;
if (dataGridView.Rows.Count == 0)
return;
var searchResults = SearchEngineCommands.Search(searchString);
var productIds = searchResults.Docs.Select(d => d.ProductId).ToList();
// https://stackoverflow.com/a/18942430
var currencyManager = (CurrencyManager)BindingContext[dataGridView.DataSource];
currencyManager.SuspendBinding();
{
for (var r = dataGridView.RowCount - 1; r >= 0; r--)
dataGridView.Rows[r].Visible = productIds.Contains(GetGridEntry(r).GetBook().AudibleProductId);
}
currencyManager.ResumeBinding();
VisibleCountChanged?.Invoke(this, dataGridView.AsEnumerable().Count(r => r.Visible));
var luceneSearchString_debug = searchResults.SearchString;
}
#endregion
private int GetRowId(Func<GridEntry, bool> func) => dataGridView.GetRowIdOfBoundItem(func);
private GridEntry GetGridEntry(int rowIndex) => dataGridView.GetBoundItem<GridEntry>(rowIndex);
}
}