/// <summary>
/// Creates a new DataGrid component.
/// </summary>
/// <param name="name">name</param>
/// <param name="alpha">alpha</param>
/// <param name="x">x</param>
/// <param name="y">y</param>
/// <param name="width">width</param>
/// <param name="rowHeight">rowHeight</param>
/// <param name="rowCount">rowCount</param>
public DataGrid(string name, ushort alpha, int x, int y, int width, int height, int rowHeight, int rowCount)
{
this.ID = name;
Width = width;
Height = height;
Alpha = 255;
X = 0;
Y = 0;
_rect.X = x;
_rect.Y = y;
_rect.Width = Width;
_rect.Height = Height;
RowHeight = rowHeight;
// Setting the RowCount changes the Height.
RowCount = rowCount;
// Show headers is on by default.
// When the headers are shown the row count is decreased by one.
ShowHeaders = true;
_headers = new GlideGraphics(Width, rowHeight);
Clear();
}
/// <summary>
/// Handles the touch move event.
/// </summary>
/// <param name="e">Touch event arguments.</param>
/// <returns>Touch event arguments.</returns>
//protected override void OnTouchMove(TouchEventArgs e)
//{
// /*
// var x = e.Touches[0].X;
// var y = e.Touches[0].Y;
// // The pressed state only triggers when touches occur within this UI element's boundaries.
// // This check guarantees whether we need to process move events or not.
// if (!_pressed)
// return;
// if (!_moving)
// {
// if (_ignoredTouchMoves < _maxIgnoredTouchMoves)
// _ignoredTouchMoves++;
// else
// _moving = true;
// }
// else
// {
// int dragDistance = y - _lastPressY;
// _listY = _lastListY - dragDistance;
// _listY = GlideUtils.Math.MinMax(_listY, 0, _listMaxY);
// //Graphics.DrawImage(X, Y, _bitmap.GetBitmap(), 0, _listY, Width, Height);
// //Glide.Flush(this);
// }
// */
// //e.StopPropagation();
// //return e;
// var evt = new RoutedEvent("TouchMoveEvent", RoutingStrategy.Bubble, typeof(RoutedEventHandler));
// var args = new RoutedEventArgs(evt, this);
// //this.Click?.Invoke(this, args);
// e.Handled = args.Handled;
// //this.isPressed = false;
// if (this.Parent != null)
// this.Invalidate();
//}
/// <summary>
/// Disposes all disposable objects in this object.
/// </summary>
public void Dispose()
{
if (_bitmap != null)
{
_bitmap.Dispose();
_bitmap = null;
}
}
public void Render(GlideGraphics bitmap, int Ay)
{
Width = Parent.Rect.Width;
//Bitmaps.DT_AlignmentCenter
bitmap.DrawTextInRect(Label, X, Ay + (Height - _font.Height) / 2, Width, _font.Height, new StringFormat()
{
Alignment = StringAlignment.Center
}, Glide.Ext.Colors.Black, _font);
bitmap.DrawLine(System.Drawing.Color.Gray, 1, 0, Ay + Height, Width, Ay + Height);
}
/// <summary>
/// Renders the List onto it's parent container's graphics.
/// </summary>
public override void OnRender(DrawingContext dc)
{
// Only render the child bitmap if children change
if (NumChildren > 0) // && _renderedWithNumChildren < NumChildren
{
//_renderedWithNumChildren = NumChildren;
var start = PageIndex * PageSize;
var end = (PageIndex + 1) * PageSize;
if (end > NumChildren)
{
end = NumChildren;
}
_bitmap = new GlideGraphics(_rect.Width, (end - start) * firstHeight);
_bitmap.DrawRectangle(new Glide.Geom.Rectangle()
{
X = 0, Y = 0, Width = _bitmap.GetBitmap().Width, Height = _bitmap.GetBitmap().Height
}, System.Drawing.Color.White, 100); //Glide.Ext.Colors.White,1, 0, 0, _bitmap.GetBitmap().Width, _bitmap.GetBitmap().Height, 0, 0, Glide.Ext.Colors.White, 0, 0, Glide.Ext.Colors.White, 0, 0, Alpha);
int counter = 0;
for (int i = start; i < end; i++)
{
var item = GetItem(i);
item.Render(_bitmap, counter * item.Height);
counter++;
}
_listMaxY = _bitmap.GetBitmap().Height - Height;
}
Media.Brush brush = new SolidColorBrush(Media.Colors.Black);
var pen = new Media.Pen(Media.Colors.Black, 1);
//dc.DrawRectangle(brush,pen, 0, 0, LCDWidth, LCDHeight);
dc.DrawImage(BitmapImage.FromGraphics(System.Drawing.Graphics.FromImage(_bitmap.GetBitmap())), X, Y, 0, _listY, _rect.Width, Height);
Media.Brush buttonBrush = new SolidColorBrush(Media.Colors.Gray);
//draw button up and down
dc.DrawRectangle(buttonBrush, pen, _rect.Width, 0, ButtonUp.Width, ButtonUp.Height);
dc.DrawRectangle(buttonBrush, pen, _rect.Width, ButtonUp.Height, ButtonDown.Width, ButtonDown.Height);
dc.DrawText("Up", _font, Media.Colors.White, _rect.Width + 5, ButtonUp.Height / 2);
dc.DrawText("Down", _font, Media.Colors.White, _rect.Width + 5, (ButtonUp.Height) + (ButtonDown.Height / 2));
}
/// <summary>
/// Renders the DataGrid onto it's parent container's graphics.
/// </summary>
public override void OnRender(DrawingContext dc)
{
if (ShowHeaders && _renderHeaders)
{
_renderHeaders = false;
RenderHeaders();
}
if (_renderItems)
{
_renderItems = false;
// Only recreate the items Bitmap if necessary
if (_items == null || _items.GetBitmap().Height != _rows.Count * RowHeight)
{
if (_items != null)
{
_items.Dispose();
}
if (_rows.Count < _rowCount)
{
_items = new GlideGraphics(Width, _rowCount * RowHeight);
RenderEmpty();
}
else
{
_items = new GlideGraphics(Width, _rows.Count * RowHeight);
}
}
else
{
_items.DrawRectangle(Glide.Ext.Colors.Black, 1, 0, 0, Width, _items.GetBitmap().Height, 0, 0, Glide.Ext.Colors.Transparent, 0, 0, Glide.Ext.Colors.Transparent, 0, 0, 255);
}
if (_rows.Count > 0)
{
for (int i = 0; i < _rows.Count; i++)
{
UpdateItem(i, false);
}
}
}
int x = /*this.Parent._finalX +*/ X;
int y = /*this.Parent._finalY +*/ Y;
if (_showHeaders)
{
//BitmapImage.FromGraphics(System.Drawing.Graphics.FromImage(x))
dc.DrawImage(BitmapImage.FromGraphics(System.Drawing.Graphics.FromImage(_headers.GetBitmap())), x, y, 0, 0, Width, RowHeight);
y += RowHeight;
}
dc.DrawImage(BitmapImage.FromGraphics(System.Drawing.Graphics.FromImage(_items.GetBitmap())), x, y, 0, _listY, Width, _rowCount * RowHeight);
if (ShowScrollbar)
{
_scrollbarHeight = RowHeight;
int travel = Height - _scrollbarHeight;
if (_rows.Count > 0)
{
_scrollbarTick = (int)System.Math.Round((double)(travel / _rows.Count));
}
else
{
_scrollbarTick = 0;
}
_scrollbarHeight = Height - ((_rows.Count - _rowCount) * _scrollbarTick);
x += Width - ScrollbarWidth;
y = /*parent y*/ 0 + Y;
//dc.DrawRectangle(Glide.Ext.Colors.Black, 0, x, y, ScrollbarWidth, Height, 0, 0, ScrollbarBackColor, 0, 0, Glide.Ext.Colors.Black, 0, 0, 255);
var pen = new Media.Pen(Media.Colors.Black, 0);
dc.DrawRectangle(new SolidColorBrush(Media.Colors.Black), pen, x, y, ScrollbarWidth, Height);
// Only show the scrollbar scrubber if it's smaller than the Height
if (_scrollbarHeight < Height)
{
//dc.DrawRectangle(Glide.Ext.Colors.Black, 0, x, y + (_scrollIndex * _scrollbarTick), ScrollbarWidth, _scrollbarHeight, 0, 0, ScrollbarScrubberColor, 0, 0, Glide.Ext.Colors.Black, 0, 0, 255);
pen = new Media.Pen(Media.Colors.Black, 0);
dc.DrawRectangle(new SolidColorBrush(Media.Colors.Black), pen, x, y + (_scrollIndex * _scrollbarTick), ScrollbarWidth, _scrollbarHeight);
}
}
}
