private void ShowDropdown(float x, float y, float width, GUIStyle buttonStyle)
{
var rect = GUIUtil.R(x, y, width, _viewModel.Options.Count * GUIUtil.RowHeight > MaxHeight ? MaxHeight : _viewModel.Options.Count * GUIUtil.RowHeight);
GUILayout.BeginArea(rect, GUIUtil.NoSpacingBoxStyle);
_scrollPosition = GUILayout.BeginScrollView(_scrollPosition, GUIStyle.none);
var style = _viewModel.CurrentSelection == null ? GUIUtil.NoMarginButtonPressedStyle : GUIUtil.NoMarginButtonStyle;
if (GUILayout.Button(_unselect, style, null))
{
_viewModel.Select(null);
_isShown = false;
}
foreach (var option in _viewModel.Options)
{
style = option.IsSelected() ? GUIUtil.NoMarginButtonPressedStyle : GUIUtil.NoMarginButtonStyle;
GUI.enabled = option?.IsEnabled() ?? true;
if (GUILayout.Button(option.Text, style, null))
{
_viewModel.Select(option);
_isShown = false;
}
GUI.enabled = true;
}
GUILayout.EndScrollView();
GUILayout.EndArea();
}
public void OnGUI()
{
bool clicked = GUI.Button(GUIUtil.R(_x, _y, _width, GUIUtil.RowHeight), _viewModel.CurrentSelection?.Text ?? _noSelection, _isShown ? GUIUtil.NoMarginButtonPressedStyle : GUI.skin.button);
if (clicked)
{
_isShown = !_isShown;
}
if (_isShown)
{
ShowDropdown(_x, _y + GUIUtil.RowHeight, _width, GUI.skin.button);
}
if (!clicked && Event.current.isMouse)
{
_isShown = false;
}
}
public bool OnGUI(bool enabled)
{
var previouslyEnabled = GUI.enabled;
try
{
GUI.enabled = enabled;
bool clicked = GUI.Button(GUIUtil.R(_x, _y, _width, GUIUtil.RowHeight), _viewModel.CurrentSelection?.Text ?? _noSelection, _isShown ? GUIUtil.NoMarginButtonPressedStyle : GUI.skin.button);
if (clicked)
{
_isShown = !_isShown;
}
if (!enabled)
{
_isShown = false;
}
if (_isShown)
{
ShowDropdown(_x, _y + GUIUtil.RowHeight, _width, GUI.skin.button);
}
if (!clicked && Event.current.isMouse)
{
_isShown = false;
}
return(_isShown);
}
finally
{
GUI.enabled = previouslyEnabled;
}
}