/// <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(ComboBoxStates state)
{
switch (state)
{
case ComboBoxStates.Pressed:
{
return(ButtonState.Pushed);
}
case ComboBoxStates.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(PaintCellEventArgs 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))
{
ComboBoxStates state = this.GetDropDownRendererData(e.Cell).ButtonState;
if (!e.Enabled)
{
state = ComboBoxStates.Disabled;
}
ThemeManager.DrawComboBoxButton(e.Graphics, this.CalcDropDownButtonBounds(), state);
}
}
/// <summary>
/// Draws a combo box button - need to fix Combobox.cs
/// </summary>
public override void DrawComboButton(Graphics graphics, int x, int y,
int width, int height, ButtonState state)
{
// revert to default theme if necessary
if (!enableTheme) // && FlatStyle.System
{
base.DrawComboButton(graphics, x, y, width, height, state);
return;
}
ComboBoxStates ctlState = ComboBoxStates.CBXS_NORMAL;
if ((state & ButtonState.Flat) != 0)
{
ctlState = ComboBoxStates.CBXS_HOT;
}
if ((state & ButtonState.Pushed) != 0)
{
ctlState = ComboBoxStates.CBXS_PRESSED;
}
Theme.DrawControl(graphics, "ComboBox", x, y, width, height,
(int)ComboBoxParts.CP_DROPDOWNBUTTON, (int)ctlState);
}
public static void DrawButton(Graphics g, Rectangle buttonRect, ComboBoxStates state)
{
ThemeManager.DrawButton(g, buttonRect, buttonRect, (PushButtonStates)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 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, ComboBoxStates state)
{
if (g == null || buttonRect.Width <= 0 || buttonRect.Height <= 0 || clipRect.Width <= 0 || clipRect.Height <= 0)
{
return;
}
if (ThemeManager.VisualStylesEnabled)
{
ThemeManager.DrawThemeBackground(g, ThemeClasses.ComboBox, (int)ComboBoxParts.DropDownButton, (int)state, buttonRect, clipRect);
}
else
{
ControlPaint.DrawComboButton(g, buttonRect, ThemeManager.ConvertComboBoxStateToButtonState(state));
}
}
/// <summary>
/// Initializes a new instance of the DropDownRendererData class
/// </summary>
public DropDownRendererData()
{
this.buttonState = ComboBoxStates.Normal;
this.clickX = -1;
this.clickY = -1;
}
/// <summary>
/// Initializes a new instance of the DropDownRendererData class
/// </summary>
public DropDownRendererData()
{
this.buttonState = ComboBoxStates.Normal;
this.clickX = -1;
this.clickY = -1;
}
/// <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(ComboBoxStates state)
{
switch (state)
{
case ComboBoxStates.Pressed:
{
return ButtonState.Pushed;
}
case ComboBoxStates.Disabled:
{
return ButtonState.Inactive;
}
}
return ButtonState.Normal;
}
/// <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, ComboBoxStates state)
{
if (g == null || buttonRect.Width <= 0 || buttonRect.Height <= 0 || clipRect.Width <= 0 || clipRect.Height <= 0)
{
return;
}
if (ThemeManager.VisualStylesEnabled)
{
ThemeManager.DrawThemeBackground(g, ThemeClasses.ComboBox, (int) ComboBoxParts.DropDownButton, (int) state, buttonRect, clipRect);
}
else
{
ControlPaint.DrawComboButton(g, buttonRect, ThemeManager.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, ComboBoxStates state)
{
ThemeManager.DrawComboBoxButton(g, buttonRect, buttonRect, state);
}
