public ButtonStates(VisualStudioFormChrome parent)
{
bool drawMinimize = false;
bool drawMaximizeRestore = false;
bool drawClose = false;
bool enableMinimize = false;
bool enableMaximizeRestore = false;
bool enableClose = false;
if (parent.Form.ControlBox)
{
DrawIcon = parent.GetFormIcon() != null && parent.Form.ShowIcon;
drawClose = true;
drawMinimize = drawMaximizeRestore = parent.Form.MinimizeBox || parent.Form.MaximizeBox;
enableMinimize = parent.Form.MinimizeBox;
enableMaximizeRestore = parent.Form.MaximizeBox;
enableClose = CanClose(parent);
}
var rightOffset =
parent.Form.Width -
parent.FormChrome.AdjustedResizeBorderThickness.Left;
if (drawClose)
Close = GetButtonState(parent, ref rightOffset, ChromeButton.Close, enableClose);
else
Close = new ButtonState(ChromeButton.Close);
if (drawMaximizeRestore)
MaximizeRestore = GetButtonState(parent, ref rightOffset, ChromeButton.MaximizeRestore, enableMaximizeRestore);
if (drawMinimize)
Minimize = GetButtonState(parent, ref rightOffset, ChromeButton.Minimize, enableMinimize);
RightOffset = rightOffset;
}
public HResult SetEnabled(bool enabled)
{
try
{
if (enabled != _enabled)
{
_enabled = enabled;
if (_enabled)
{
FormChrome = new VisualStudioFormChrome();
FormChrome.BorderColor = _color;
FormChrome.PrimaryColor = _color;
FormChrome.ContainerControl = _mainForm;
// Buttons may have been added before the chrome was
// available. Trigger the title bar button manager
// to actually create the buttons.
((NiTitleBarButtonManager)GetService(typeof(INiTitleBarButtonManager))).RebuildButtons();
}
else
{
FormChrome.Dispose();
FormChrome = null;
}
}
return HResult.OK;
}
catch (Exception ex)
{
return ErrorUtil.GetHResult(ex);
}
}
public VisualStudioButtonCollection(VisualStudioFormChrome chrome)
{
if (chrome == null)
{
throw new ArgumentNullException("chrome");
}
_chrome = chrome;
}
private bool CanClose(VisualStudioFormChrome parent)
{
if (!parent.Form.IsHandleCreated)
{
return(false);
}
uint menuState = NativeMethods.GetMenuState(
NativeMethods.GetSystemMenu(parent.Form.Handle, false),
NativeMethods.SC_CLOSE,
NativeMethods.MF_BYCOMMAND
);
return((menuState & (NativeMethods.MF_GRAYED | NativeMethods.MF_DISABLED)) == 0);
}
public ButtonStates(VisualStudioFormChrome parent)
{
bool drawMinimize = false;
bool drawMaximizeRestore = false;
bool drawClose = false;
bool enableMinimize = false;
bool enableMaximizeRestore = false;
bool enableClose = false;
if (parent.Form.ControlBox)
{
DrawIcon = parent.GetFormIcon() != null && parent.Form.ShowIcon;
drawClose = true;
drawMinimize = drawMaximizeRestore = parent.Form.MinimizeBox || parent.Form.MaximizeBox;
enableMinimize = parent.Form.MinimizeBox;
enableMaximizeRestore = parent.Form.MaximizeBox;
enableClose = CanClose(parent);
}
var rightOffset =
parent.Form.Width -
parent._formChrome.AdjustedResizeBorderThickness.Left;
if (drawClose)
{
Close = GetButtonState(parent, ref rightOffset, ChromeButton.Close, enableClose, null);
}
else
{
Close = new ButtonState(ChromeButton.Close);
}
if (drawMaximizeRestore)
{
MaximizeRestore = GetButtonState(parent, ref rightOffset, ChromeButton.MaximizeRestore, enableMaximizeRestore, null);
}
if (drawMinimize)
{
Minimize = GetButtonState(parent, ref rightOffset, ChromeButton.Minimize, enableMinimize, null);
}
ProcessExtraButtons(parent, ref rightOffset);
RightOffset = rightOffset;
}
private void ProcessExtraButtons(VisualStudioFormChrome parent, ref int rightOffset)
{
ExtraButtons = new List <ButtonState>(parent.Buttons.Count);
for (int i = parent.Buttons.Count - 1; i >= 0; i--)
{
var extraButton = parent.Buttons[i];
if (!extraButton.Visible)
{
continue;
}
ExtraButtons.Insert(
0,
GetButtonState(
parent,
ref rightOffset,
ChromeButton.None,
extraButton.Enabled,
extraButton
)
);
}
}
private void ProcessExtraButtons(VisualStudioFormChrome parent, ref int rightOffset)
{
ExtraButtons = new List<ButtonState>(parent.Buttons.Count);
for (int i = parent.Buttons.Count - 1; i >= 0; i--)
{
var extraButton = parent.Buttons[i];
if (!extraButton.Visible)
continue;
ExtraButtons.Insert(
0,
GetButtonState(
parent,
ref rightOffset,
ChromeButton.None,
extraButton.Enabled,
extraButton
)
);
}
}
private ButtonState GetButtonState(VisualStudioFormChrome parent, ref int offset, ChromeButton button, bool enabled, VisualStudioButton extraButton)
{
offset -= ButtonSize.Width;
var bounds = new Rectangle(
offset,
parent._formChrome.AdjustedResizeBorderThickness.Top,
ButtonSize.Width,
ButtonSize.Height
);
var location = parent._formChrome.PointToClient(Cursor.Position);
bool over = bounds.Contains(location);
ChromeButtonState state;
if (!enabled)
{
state = ChromeButtonState.Disabled;
}
else if (parent.CaptureStart.HasValue)
{
if (bounds.Contains(parent.CaptureStart.Value))
state = over ? ChromeButtonState.Down : ChromeButtonState.Over;
else
state = ChromeButtonState.Enabled;
}
else
{
state = over ? ChromeButtonState.Over : ChromeButtonState.Enabled;
}
if (extraButton != null)
{
extraButton.IsOver = false;
extraButton.IsDown = false;
}
if (state == ChromeButtonState.Over)
{
OverButton = button;
OverExtraButton = extraButton;
if (extraButton != null)
extraButton.IsOver = true;
}
else if (state == ChromeButtonState.Down)
{
DownButton = button;
DownExtraButton = extraButton;
if (extraButton != null)
extraButton.IsDown = true;
}
return new ButtonState(button, state, true, bounds, extraButton);
}
private bool CanClose(VisualStudioFormChrome parent)
{
if (!parent.Form.IsHandleCreated)
return false;
uint menuState = NativeMethods.GetMenuState(
NativeMethods.GetSystemMenu(parent.Form.Handle, false),
NativeMethods.SC_CLOSE,
NativeMethods.MF_BYCOMMAND
);
return (menuState & (NativeMethods.MF_GRAYED | NativeMethods.MF_DISABLED)) == 0;
}
private ButtonState GetButtonState(VisualStudioFormChrome parent, ref int offset, ChromeButton button, bool enabled, VisualStudioButton extraButton)
{
offset -= ButtonSize.Width;
var bounds = new Rectangle(
offset,
parent._formChrome.AdjustedResizeBorderThickness.Top,
ButtonSize.Width,
ButtonSize.Height
);
var location = parent._formChrome.PointToClient(Cursor.Position);
bool over = bounds.Contains(location);
ChromeButtonState state;
if (!enabled)
{
state = ChromeButtonState.Disabled;
}
else if (parent.CaptureStart.HasValue)
{
if (bounds.Contains(parent.CaptureStart.Value))
{
state = over ? ChromeButtonState.Down : ChromeButtonState.Over;
}
else
{
state = ChromeButtonState.Enabled;
}
}
else
{
state = over ? ChromeButtonState.Over : ChromeButtonState.Enabled;
}
if (extraButton != null)
{
extraButton.IsOver = false;
extraButton.IsDown = false;
}
if (state == ChromeButtonState.Over)
{
OverButton = button;
OverExtraButton = extraButton;
if (extraButton != null)
{
extraButton.IsOver = true;
}
}
else if (state == ChromeButtonState.Down)
{
DownButton = button;
DownExtraButton = extraButton;
if (extraButton != null)
{
extraButton.IsDown = true;
}
}
return(new ButtonState(button, state, true, bounds, extraButton));
}