/// <summary>
/// Occurs when the mouse pointer is moving over the control.
/// Manages the display of mouse on/off visual effects.
/// </summary>
public void MouseMove(float x, float y, MouseButtonType button)
{
//Console.WriteLine("SongGridViewControl - MouseMove - x: {0} y: {1}", x, y);
bool controlNeedsToBeFullyInvalidated = false;
bool controlNeedsToBePartiallyInvalidated = false;
var partialRect = new BasicRectangle();
if (_columns == null || _songCache == null)
return;
// Calculate album cover art width
int albumArtCoverWidth = _columns[0].Visible ? _columns[0].Width : 0;
// Check if the user is currently resizing a column (loop through columns)
foreach (var column in _songCache.ActiveColumns)
{
// Check if the user is currently resizing this column
if (column.IsUserResizingColumn && column.Visible)
{
// Calculate the new column width
int newWidth = _dragOriginalColumnWidth - (_dragStartX - (int)x);
// Make sure the width isn't lower than the minimum width
if (newWidth < MinimumColumnWidth)
newWidth = MinimumColumnWidth;
// Set column width
column.Width = newWidth;
// Refresh control (invalidate whole control)
controlNeedsToBeFullyInvalidated = true;
InvalidateSongCache();
// Auto adjust horizontal scrollbar value if it exceeds the value range (i.e. do not show empty column)
if (HorizontalScrollBar.Value > HorizontalScrollBar.Maximum - HorizontalScrollBar.LargeChange)
{
// Set new value
int tempValue = HorizontalScrollBar.Maximum - HorizontalScrollBar.LargeChange;
if (tempValue < 0)
tempValue = 0;
HorizontalScrollBar.Value = tempValue;
}
}
// Check if the user is moving the column
if (column.IsMouseOverColumnHeader && column.CanBeMoved && CanMoveColumns && _isUserHoldingLeftMouseButton && !IsColumnResizing)
{
// Check if the X position has changed by at least 2 pixels (i.e. dragging)
if (_dragStartX >= x + 2 ||
_dragStartX <= x - 2)
{
// Set resizing column flag
column.IsUserMovingColumn = true;
}
}
// Check if the user is currently moving this column
if (column.IsUserMovingColumn)
{
// Loop through columns
int currentX = 0;
foreach (SongGridViewColumn columnOver in _songCache.ActiveColumns)
{
// Check if column is visible
if (columnOver.Visible)
{
// Check if the cursor is over the left part of the column
if (x >= currentX - HorizontalScrollBar.Value && x <= currentX + (columnOver.Width / 2) - HorizontalScrollBar.Value)
_columnMoveMarkerX = (int)x;
// Check if the cursor is over the right part of the column
else if (x >= currentX + (columnOver.Width / 2) - HorizontalScrollBar.Value && x <= currentX + columnOver.Width - HorizontalScrollBar.Value)
_columnMoveMarkerX = (int)x + columnOver.Width;
x += columnOver.Width;
}
}
controlNeedsToBeFullyInvalidated = true;
}
}
if (!IsColumnMoving)
{
// Check if the cursor needs to be changed
int offsetX = 0;
bool mousePointerIsOverColumnLimit = false;
foreach (var column in _songCache.ActiveColumns)
{
if (column.Visible)
{
// Increment offset by the column width
offsetX += column.Width;
if (column.CanBeResized)
{
// Check if the mouse pointer is over a column (add 1 pixel so it's easier to select)
if (x >= offsetX - HorizontalScrollBar.Value && x <= offsetX + 1 - HorizontalScrollBar.Value)
{
mousePointerIsOverColumnLimit = true;
column.IsMouseCursorOverColumnLimit = true;
OnChangeMouseCursorType(MouseCursorType.VSplit);
}
else
{
column.IsMouseCursorOverColumnLimit = false;
}
}
}
}
// Check if the default cursor needs to be restored
if (!mousePointerIsOverColumnLimit)
OnChangeMouseCursorType(MouseCursorType.Default);
int columnOffsetX2 = 0;
for (int b = 0; b < _songCache.ActiveColumns.Count; b++)
{
var column = _songCache.ActiveColumns[b];
if (column.Visible)
{
// Was mouse over this column header?
if (column.IsMouseOverColumnHeader)
{
// Invalidate region
column.IsMouseOverColumnHeader = false;
var newPartialRect = new BasicRectangle(columnOffsetX2 - HorizontalScrollBar.Value, 0, column.Width, _songCache.LineHeight);
partialRect.Merge(newPartialRect);
controlNeedsToBePartiallyInvalidated = true;
}
// Increment offset
columnOffsetX2 += column.Width;
}
}
// Check if the mouse pointer is over the header
if (y >= 0 &&
y <= _songCache.LineHeight)
{
// Check on what column the user has clicked
int columnOffsetX = 0;
for (int a = 0; a < _songCache.ActiveColumns.Count; a++)
{
var column = _songCache.ActiveColumns[a];
if (column.Visible)
{
// Check if the mouse pointer is over this column
if (x >= columnOffsetX - HorizontalScrollBar.Value && x <= columnOffsetX + column.Width - HorizontalScrollBar.Value)
{
// Invalidate region
column.IsMouseOverColumnHeader = true;
var newPartialRect = new BasicRectangle(columnOffsetX - HorizontalScrollBar.Value, 0, column.Width, _songCache.LineHeight);
partialRect.Merge(newPartialRect);
controlNeedsToBePartiallyInvalidated = true;
break;
}
columnOffsetX += column.Width;
}
}
}
// Check if the mouse cursor is over a line (loop through lines)
int offsetY = 0;
//int scrollbarOffsetY = (_startLineNumber * _songCache.LineHeight) - VerticalScrollBar.Value;
// Check if there's at least one item
if (_items.Count > 0)
{
// Reset mouse over item flags
for (int b = _startLineNumber; b < _startLineNumber + _numberOfLinesToDraw; b++)
{
//Console.WriteLine("SongGridViewControl - MouseMove - Checking for resetting mouse over flag for line {0}", b);
// Check if the mouse was over this item
if (_items[b].IsMouseOverItem)
{
// Reset flag and invalidate region
//Console.WriteLine("SongGridViewControl - MouseMove - Resetting mouse over flag for line {0}", b);
_items[b].IsMouseOverItem = false;
//OnInvalidateVisualInRect(new BasicRectangle(albumArtCoverWidth - HorizontalScrollBar.Value, ((b - _startLineNumber + 1) * _songCache.LineHeight) + scrollbarOffsetY, Frame.Width - albumArtCoverWidth + HorizontalScrollBar.Value, _songCache.LineHeight));
break;
}
}
// Put new mouse over flag
for (int a = _startLineNumber; a < _startLineNumber + _numberOfLinesToDraw; a++)
{
// Calculate offset
offsetY = (a * _songCache.LineHeight) - VerticalScrollBar.Value + _songCache.LineHeight;
//Console.WriteLine("SongGridViewControl - MouseMove - Checking for setting mouse over flag for line {0} - offsetY: {1}", a, offsetY);
// Check if the mouse cursor is over this line (and not already mouse over)
if (x >= albumArtCoverWidth - HorizontalScrollBar.Value &&
y >= offsetY &&
y <= offsetY + _songCache.LineHeight &&
!_items[a].IsEmptyRow &&
!_items[a].IsMouseOverItem)
{
// Set item as mouse over
//Console.WriteLine("SongGridViewControl - MouseMove - Mouse is over item {0} {1}/{2}/{3}", a, _items[a].AudioFile.ArtistName, _items[a].AudioFile.AlbumTitle, _items[a].AudioFile.Title);
_items[a].IsMouseOverItem = true;
// Invalidate region and update control
//OnInvalidateVisualInRect(new BasicRectangle(albumArtCoverWidth - HorizontalScrollBar.Value, offsetY, Frame.Width - albumArtCoverWidth + HorizontalScrollBar.Value, _songCache.LineHeight));
//controlNeedsToBeFullyInvalidated = true;
break;
}
}
}
}
if (controlNeedsToBeFullyInvalidated)
OnInvalidateVisual();
else if (controlNeedsToBePartiallyInvalidated)
OnInvalidateVisualInRect(partialRect);
}
public void MouseClick(float x, float y, MouseButtonType button, KeysHeld keysHeld)
{
bool controlNeedsToBeFullyInvalidated = false;
bool controlNeedsToBePartiallyInvalidated = false;
var partialRect = new BasicRectangle();
if (_columns == null || _songCache == null)
return;
// Show context menu strip if the button click is right and not the album art column
if (button == MouseButtonType.Right && x > _columns[0].Width && y > _songCache.LineHeight)
OnDisplayContextMenu(ContextMenuType.Item, x, y);
int albumArtCoverWidth = _columns[0].Visible ? _columns[0].Width : 0;
var columnResizing = _columns.FirstOrDefault(col => col.IsUserResizingColumn == true);
int scrollbarOffsetY = (_startLineNumber * _songCache.LineHeight) - VerticalScrollBar.Value;
// Check if the user has clicked on the header (for orderBy)
if (y >= 0 && y <= _songCache.LineHeight &&
columnResizing == null && !IsColumnMoving)
{
// Check on what column the user has clicked
int offsetX = 0;
for (int a = 0; a < _songCache.ActiveColumns.Count; a++)
{
var column = _songCache.ActiveColumns[a];
if (column.Visible)
{
// Check if the mouse pointer is over this column
if (x >= offsetX - HorizontalScrollBar.Value && x <= offsetX + column.Width - HorizontalScrollBar.Value)
{
if (button == MouseButtonType.Left && CanChangeOrderBy)
{
// Check if the column order was already set
if (_orderByFieldName == column.FieldName)
{
// Reverse ascending/descending
_orderByAscending = !_orderByAscending;
}
else
{
// Set order by field name
_orderByFieldName = column.FieldName;
_orderByAscending = true;
}
//_items = null;
_songCache = null;
// Raise column click event (if an event is subscribed)
if (OnColumnClick != null)
{
var data = new SongGridViewColumnClickData();
data.ColumnIndex = a;
OnColumnClick(data);
}
OnInvalidateVisual();
return;
}
else if (button == MouseButtonType.Right)
{
//// Refresh column visibility in menu before opening
//foreach (ToolStripMenuItem menuItem in _menuColumns.Items)
//{
// SongGridViewColumn menuItemColumn = _columns.FirstOrDefault(x => x.Title == menuItem.Tag.ToString());
// if (menuItemColumn != null)
// menuItem.Checked = menuItemColumn.Visible;
//}
OnDisplayContextMenu(ContextMenuType.Header, x, y);
}
}
offsetX += column.Width;
}
}
}
// Loop through visible lines to find the original selected items
var tuple = GetStartIndexAndEndIndexOfSelectedRows();
int startIndex = tuple.Item1;
int endIndex = tuple.Item2;
// Make sure the indexes are set
if (startIndex > -1 && endIndex > -1)
{
// Invalidate the original selected lines
int startY = ((startIndex - _startLineNumber + 1) * _songCache.LineHeight) + scrollbarOffsetY;
int endY = ((endIndex - _startLineNumber + 2) * _songCache.LineHeight) + scrollbarOffsetY;
var newPartialRect = new BasicRectangle(albumArtCoverWidth - HorizontalScrollBar.Value, startY, Frame.Width - albumArtCoverWidth + HorizontalScrollBar.Value, endY - startY);
partialRect.Merge(newPartialRect);
controlNeedsToBePartiallyInvalidated = true;
}
// Reset selection (make sure SHIFT or CTRL isn't held down)
if (!keysHeld.IsShiftKeyHeld && !keysHeld.IsCtrlKeyHeld)
{
// Make sure the mouse is over at least one item
var mouseOverItem = _items.FirstOrDefault(item => item.IsMouseOverItem == true);
if (mouseOverItem != null)
ResetSelection();
}
// Loop through visible lines to update the new selected items
bool invalidatedNewSelection = false;
for (int a = _startLineNumber; a < _startLineNumber + _numberOfLinesToDraw; a++)
{
// Check if mouse is over this item
if (_items[a].IsMouseOverItem)
{
invalidatedNewSelection = true;
// Check if SHIFT is held
if (keysHeld.IsShiftKeyHeld)
{
// Find the start index of the selection
int startIndexSelection = _lastItemIndexClicked;
if (a < startIndexSelection)
startIndexSelection = a;
if (startIndexSelection < 0)
startIndexSelection = 0;
// Find the end index of the selection
int endIndexSelection = _lastItemIndexClicked;
if (a > endIndexSelection)
endIndexSelection = a + 1;
// Loop through items to selected
for (int b = startIndexSelection; b < endIndexSelection; b++)
_items [b].IsSelected = true;
controlNeedsToBeFullyInvalidated = true;
}
// Check if CTRL is held
else if(keysHeld.IsCtrlKeyHeld)
{
// Invert selection
_items[a].IsSelected = !_items[a].IsSelected;
var newPartialRect = new BasicRectangle(albumArtCoverWidth - HorizontalScrollBar.Value, ((a - _startLineNumber + 1) * _songCache.LineHeight) + scrollbarOffsetY, Frame.Width - albumArtCoverWidth + HorizontalScrollBar.Value, _songCache.LineHeight);
partialRect.Merge(newPartialRect);
controlNeedsToBePartiallyInvalidated = true;
}
else
{
// Set this item as the new selected item
_items[a].IsSelected = true;
var newPartialRect = new BasicRectangle(albumArtCoverWidth - HorizontalScrollBar.Value, ((a - _startLineNumber + 1) * _songCache.LineHeight) + scrollbarOffsetY, Frame.Width - albumArtCoverWidth + HorizontalScrollBar.Value, _songCache.LineHeight);
partialRect.Merge(newPartialRect);
controlNeedsToBePartiallyInvalidated = true;
}
// Set the last item clicked index
_lastItemIndexClicked = a;
break;
}
}
// Raise selected item changed event (if an event is subscribed)
if (invalidatedNewSelection && OnSelectedIndexChanged != null)
{
var data = new SongGridViewSelectedIndexChangedData();
OnSelectedIndexChanged(data);
}
if (controlNeedsToBeFullyInvalidated)
OnInvalidateVisual();
else if (controlNeedsToBePartiallyInvalidated)
OnInvalidateVisualInRect(partialRect);
}
/// <summary>
/// Occurs when the user double-clicks on the control.
/// Starts the playback of a new song.
/// </summary>
/// <param name="e">Event arguments</param>
public void MouseDoubleClick(float x, float y, MouseButtonType button, KeysHeld keysHeld)
{
if (_columns == null || _songCache == null)
return;
var partialRect = new BasicRectangle();
bool controlNeedsToBePartiallyInvalidated = false;
int albumArtCoverWidth = _columns[0].Visible ? _columns[0].Width : 0;
int scrollbarOffsetY = (_startLineNumber * _songCache.LineHeight) - VerticalScrollBar.Value;
// Keep original songId in case the now playing value is set before invalidating the older value
Guid originalId = Guid.Empty;
// Set original id
if (_mode == SongGridViewMode.AudioFile)
originalId = _nowPlayingAudioFileId;
else if (_mode == SongGridViewMode.Playlist)
originalId = _nowPlayingPlaylistItemId;
// Loop through visible lines
for (int a = _startLineNumber; a < _startLineNumber + _numberOfLinesToDraw; a++)
{
if (_items[a].IsMouseOverItem)
{
// Set this item as the new now playing
_nowPlayingAudioFileId = _items[a].AudioFile.Id;
_nowPlayingPlaylistItemId = _items[a].PlaylistItemId;
OnItemDoubleClick(_nowPlayingAudioFileId, a);
var newPartialRect = new BasicRectangle(albumArtCoverWidth - HorizontalScrollBar.Value, ((a - _startLineNumber + 1) * _songCache.LineHeight) + scrollbarOffsetY, Frame.Width - albumArtCoverWidth + HorizontalScrollBar.Value, _songCache.LineHeight);
partialRect.Merge(newPartialRect);
controlNeedsToBePartiallyInvalidated = true;
}
else if (_mode == SongGridViewMode.AudioFile && _items[a].AudioFile != null && _items[a].AudioFile.Id == originalId)
{
var newPartialRect = new BasicRectangle(albumArtCoverWidth - HorizontalScrollBar.Value, ((a - _startLineNumber + 1) * _songCache.LineHeight) + scrollbarOffsetY, Frame.Width - albumArtCoverWidth + HorizontalScrollBar.Value, _songCache.LineHeight);
partialRect.Merge(newPartialRect);
controlNeedsToBePartiallyInvalidated = true;
}
else if (_mode == SongGridViewMode.Playlist && _items[a].PlaylistItemId == originalId)
{
var newPartialRect = new BasicRectangle(albumArtCoverWidth - HorizontalScrollBar.Value, ((a - _startLineNumber + 1) * _songCache.LineHeight) + scrollbarOffsetY, Frame.Width - albumArtCoverWidth + HorizontalScrollBar.Value, _songCache.LineHeight);
partialRect.Merge(newPartialRect);
controlNeedsToBePartiallyInvalidated = true;
}
}
if (controlNeedsToBePartiallyInvalidated)
OnInvalidateVisualInRect(partialRect);
}
/// <summary>
/// Occurs when the mouse cursor leaves the control.
/// </summary>
public void MouseLeave()
{
bool controlNeedsToBePartiallyInvalidated = false;
var partialRect = new BasicRectangle();
_isMouseOverControl = false;
if (_columns == null || _songCache == null)
return;
int scrollbarOffsetY = (_startLineNumber * _songCache.LineHeight) - VerticalScrollBar.Value;
if (_items.Count > 0)
{
for (int b = _startLineNumber; b < _startLineNumber + _numberOfLinesToDraw; b++)
{
if (_items[b].IsMouseOverItem)
{
_items[b].IsMouseOverItem = false;
var newPartialRect = new BasicRectangle(_columns[0].Width - HorizontalScrollBar.Value, ((b - _startLineNumber + 1) * _songCache.LineHeight) + scrollbarOffsetY, Frame.Width - _columns[0].Width + HorizontalScrollBar.Value, _songCache.LineHeight);
partialRect.Merge(newPartialRect);
controlNeedsToBePartiallyInvalidated = true;
break;
}
}
}
// Reset column flags
int columnOffsetX2 = 0;
for (int b = 0; b < _songCache.ActiveColumns.Count; b++)
{
if (_songCache.ActiveColumns[b].Visible)
{
if (_songCache.ActiveColumns[b].IsMouseOverColumnHeader)
{
_songCache.ActiveColumns[b].IsMouseOverColumnHeader = false;
var newPartialRect = new BasicRectangle(columnOffsetX2 - HorizontalScrollBar.Value, 0, _songCache.ActiveColumns[b].Width, _songCache.LineHeight);
partialRect.Merge(newPartialRect);
controlNeedsToBePartiallyInvalidated = true;
}
columnOffsetX2 += _songCache.ActiveColumns[b].Width;
}
}
if (controlNeedsToBePartiallyInvalidated)
OnInvalidateVisualInRect(partialRect);
}
