/// <summary>
/// Get the appropriate image for the current state as defined by the
/// specified <see cref="StateImageItems"/>
/// </summary>
/// <param name="imageItems">Images and image state map</param>
/// <returns>
/// The appropriate image for the state, or the <c>Normal</c> image
/// </returns>
///
private Image GetStatefulImage(StateImageItems imageItems) {
Image image = null ;
if (imageItems != null) {
if (Enabled) {
// mouse down
if (isCaptionPressed) {
image = imageItems.PressedImage ;
}
// isCaptionHot and isCaptionPressed can be true at the same time
// so if we dont have a pressed image, try the hot image, otherwise...
if (isCaptionHot && (image == null)) {
image = imageItems.HighlightImage ;
}
} else {
image = imageItems.DisabledImage ;
}
// fall back
if (image == null) {
image = imageItems.NormalImage ;
}
}
return image ;
}
/// <summary>
/// Resets the property value back to its default
/// </summary>
/// <remarks>
/// Called by the IDE
/// </remarks>
protected void ResetExpandedGlyphs() {
ExpandedGlyphs = new StateImageItems() ;
}
/// <summary>
/// Resets the property value back to its default
/// </summary>
/// <remarks>
/// Called by the IDE
/// </remarks>
protected void ResetCollapsedGlyphs() {
CollapsedGlyphs = new StateImageItems() ;
}
/// <summary>
/// Resets the property value back to its default
/// </summary>
/// <remarks>
/// Called by the IDE
/// </remarks>
protected void ResetImageStates() {
ImageItems = new StateImageItems() ;
}