/// <summary>
/// Renders the ListItem onto the provided bitmap.
/// </summary>
/// <param name="bitmap">Bitmap this item will be drawn on.</param>
public override void Render(Display.Graphics bitmap)
{
Width = Parent.Width;
bitmap.DrawTextInRect(Label, X, Y + (Height - _font.Height) / 2, Width, _font.Height, Bitmaps.DT_AlignmentCenter, TinyCLR2.Glide.Ext.Colors.Black, _font);
bitmap.DrawLine(TinyCLR2.Glide.Ext.Colors.LightGray, 1, 0, Y + Height, Width, Y + Height);
}
/// <summary>
/// Disposes all disposable objects in this object.
/// </summary>
public override void Dispose()
{
if (_bitmap != null)
{
_bitmap.Dispose();
_bitmap = null;
}
}
/// <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 rowHeight, int rowCount)
{
Name = name;
Alpha = 255;
X = x;
Y = y;
Width = width;
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 Display.Graphics(Width, rowHeight);
Clear();
}
/// <summary>
/// Renders the List onto it's parent container's graphics.
/// </summary>
public override void Render()
{
// Only render the child bitmap if children change
if (NumChildren > 0 && _renderedWithNumChildren < NumChildren)
{
_renderedWithNumChildren = NumChildren;
_bitmap = new Display.Graphics(Width, NumChildren * this[0].Height);
_bitmap.DrawRectangle(TinyCLR.Glide.Ext.Colors.White, 1, 0, 0, _bitmap.GetBitmap().Width, _bitmap.GetBitmap().Height, 0, 0, Colors.Transparent, 0, 0, Colors.Transparent, 0, 0, Alpha);
for (int i = 0; i < NumChildren; i++)
{
((ListItem)this[i]).Render(_bitmap);
}
_listMaxY = _bitmap.GetBitmap().Height - Height;
}
Graphics.DrawRectangle(TinyCLR.Glide.Ext.Colors.Black, 0, 0, 0, Glide.LCD.Width, Glide.LCD.Height, 0, 0, TinyCLR.Glide.Ext.Colors.Black, 0, 0, TinyCLR.Glide.Ext.Colors.Black, 0, 0, 0xff);
Graphics.DrawImage(X, Y, _bitmap.GetBitmap(), 0, _listY, Width, Height);
}
/// <summary>
/// Renders the DataGrid onto it's parent container's graphics.
/// </summary>
public override void Render()
{
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 Display.Graphics(Width, _rowCount * RowHeight);
RenderEmpty();
}
else
{
_items = new Display.Graphics(Width, _rows.Count * RowHeight);
}
}
else
{
_items.DrawRectangle(Colors.Black, 1, 0, 0, Width, _items.GetBitmap().Height, 0, 0, TinyCLR2.Glide.Ext.Colors.Transparent, 0, 0, TinyCLR2.Glide.Ext.Colors.Transparent, 0, 0, 255);
}
if (_rows.Count > 0)
{
for (int i = 0; i < _rows.Count; i++)
{
UpdateItem(i, false);
}
}
}
int x = Parent.X + X;
int y = Parent.Y + Y;
if (_showHeaders)
{
Parent.Graphics.DrawImage(x, y, _headers.GetBitmap(), 0, 0, Width, RowHeight);
y += RowHeight;
}
Parent.Graphics.DrawImage(x, y, _items.GetBitmap(), 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 + Y;
Parent.Graphics.DrawRectangle(TinyCLR2.Glide.Ext.Colors.Black, 0, x, y, ScrollbarWidth, Height, 0, 0, ScrollbarBackColor, 0, 0, TinyCLR2.Glide.Ext.Colors.Black, 0, 0, 255);
// Only show the scrollbar scrubber if it's smaller than the Height
if (_scrollbarHeight < Height)
{
Parent.Graphics.DrawRectangle(TinyCLR2.Glide.Ext.Colors.Black, 0, x, y + (_scrollIndex * _scrollbarTick), ScrollbarWidth, _scrollbarHeight, 0, 0, ScrollbarScrubberColor, 0, 0, TinyCLR2.Glide.Ext.Colors.Black, 0, 0, 255);
}
}
}
/// <summary>
/// Renders this display object on a specified bitmap.
/// </summary>
/// <param name="bitmap"></param>
public virtual void Render(Display.Graphics bitmap)
{
// Do something
}
