/// <summary>
/// Paints the Cells background
/// </summary>
/// <param name="e">A PaintCellEventArgs that contains the event data</param>
protected override void OnPaintBackground(I3PaintCellEventArgs e)
{
this.OnPaintBackgroundNotVirtual(e);
// don't bother going any further if the Cell is null
if (e.Cell == null)
{
return;
}
if (this.ShowDropDownButton || (e.Table.IsEditing && e.CellPos == e.Table.EditingCell))
{
I3ComboBoxStates comboBoxState = this.GetDropDownRendererData(e.Cell).ButtonState;
I3PushButtonStates state = (I3PushButtonStates)comboBoxState;
if (!e.Enabled)
{
state = I3PushButtonStates.Disabled;
}
//ThemeManager.DrawComboBoxButton(e.Graphics, this.CalcDropDownButtonBounds(), state);
Rectangle rect = this.CalcDropDownButtonBounds();
I3ThemeManager.DrawButton(e.Graphics, rect, state);
if (state == I3PushButtonStates.Pressed)
{
rect.X += 1;
rect.Y += 1;
rect.Width -= 1;
rect.Height -= 1;
}
e.Graphics.DrawString(I3ExtendCellRenderer.ButtonText, this.buttonFont, this.buttonBrush, rect, this.buttonStringFormat);
}
}
/// <summary>
/// Converts the specified ComboBoxStates value to a ButtonState value
/// </summary>
/// <param name="state">The ComboBoxStates value to be converted</param>
/// <returns>A ButtonState value that represents the specified ComboBoxStates
/// value</returns>
private static ButtonState ConvertComboBoxStateToButtonState(I3ComboBoxStates state)
{
switch (state)
{
case I3ComboBoxStates.Pressed:
{
return(ButtonState.Pushed);
}
case I3ComboBoxStates.Disabled:
{
return(ButtonState.Inactive);
}
}
return(ButtonState.Normal);
}
/// <summary>
/// Paints the Cells background
/// </summary>
/// <param name="e">A PaintCellEventArgs that contains the event data</param>
protected override void OnPaintBackground(I3PaintCellEventArgs e)
{
base.OnPaintBackground(e);
// don't bother going any further if the Cell is null
if (e.Cell == null)
{
return;
}
if (this.ShowDropDownButton || (e.Table.IsEditing && e.CellPos == e.Table.EditingCell))
{
I3ComboBoxStates state = this.GetDropDownRendererData(e.Cell).ButtonState;
if (!e.Enabled)
{
state = I3ComboBoxStates.Disabled;
}
I3ThemeManager.DrawComboBoxButton(e.Graphics, this.CalcDropDownButtonBounds(), state);
}
}
/// <summary>
/// Initializes a new instance of the DropDownRendererData class
/// </summary>
public I3DropDownRendererData()
{
this.buttonState = I3ComboBoxStates.Normal;
this.clickX = -1;
this.clickY = -1;
}
/// <summary>
/// Draws a combobox button in the specified state, on the specified graphics
/// surface, and within the specified bounds
/// </summary>
/// <param name="g">The Graphics to draw on</param>
/// <param name="buttonRect">The Rectangle that represents the dimensions
/// of the button</param>
/// <param name="clipRect">The Rectangle that represents the clipping area</param>
/// <param name="state">A ComboBoxStates value that specifies the
/// state to draw the combobox button in</param>
public static void DrawComboBoxButton(Graphics g, Rectangle buttonRect, Rectangle clipRect, I3ComboBoxStates state)
{
if (g == null || buttonRect.Width <= 0 || buttonRect.Height <= 0 || clipRect.Width <= 0 || clipRect.Height <= 0)
{
return;
}
if (I3ThemeManager.VisualStylesEnabled)
{
I3ThemeManager.DrawThemeBackground(g, I3ThemeClasses.ComboBox, (int)I3ComboBoxParts.DropDownButton, (int)state, buttonRect, clipRect);
}
else
{
ControlPaint.DrawComboButton(g, buttonRect, I3ThemeManager.ConvertComboBoxStateToButtonState(state));
}
}
/// <summary>
/// Draws a combobox button in the specified state, on the specified graphics
/// surface, and within the specified bounds
/// </summary>
/// <param name="g">The Graphics to draw on</param>
/// <param name="buttonRect">The Rectangle that represents the dimensions
/// of the combobox button</param>
/// <param name="state">A ComboBoxStates value that specifies the
/// state to draw the combobox button in</param>
public static void DrawComboBoxButton(Graphics g, Rectangle buttonRect, I3ComboBoxStates state)
{
I3ThemeManager.DrawComboBoxButton(g, buttonRect, buttonRect, state);
}
