public void OnGUI()
{
Event evt = Event.current;
Vector2 mpos = evt.mousePosition;
// if icon mode and no actions are found, that probably means icons failed to load. revert to text mode.
int menuActionsCount = 0;
for (int i = 0; i < m_Actions.Count; i++)
{
if (IsActionValid(m_Actions[i]))
{
menuActionsCount++;
}
}
if (isIconMode && menuActionsCount < 1)
{
isIconMode = false;
ProBuilderEditor.s_IsIconGui.value = isIconMode;
CalculateMaxIconSize();
Debug.LogWarning("ProBuilder: Toolbar icons failed to load, reverting to text mode. Please ensure that the ProBuilder folder contents are unmodified. If the menu is still not visible, try closing and re-opening the Editor Window.");
return;
}
int availableWidth = windowWidth;
int availableHeight = windowHeight;
bool isHorizontal = windowWidth > windowHeight * 2;
if (m_IsHorizontalMenu != isHorizontal || m_Rows < 1 || m_Columns < 1)
{
CalculateMaxIconSize();
}
if (evt.type == EventType.Layout)
{
if (isHorizontal)
{
m_Rows = ((windowHeight - 4) / m_ContentHeight);
m_Columns = System.Math.Max(windowWidth / m_ContentWidth, (menuActionsCount / m_Rows) + (menuActionsCount % m_Rows != 0 ? 1 : 0));
}
else
{
m_Columns = System.Math.Max((windowWidth - 4) / m_ContentWidth, 1);
m_Rows = (menuActionsCount / m_Columns) + (menuActionsCount % m_Columns != 0 ? 1 : 0);
}
}
// happens when maximizing/unmaximizing the window
if (m_Rows < 1 || m_Columns < 1)
{
return;
}
int contentWidth = (menuActionsCount / m_Rows) * m_ContentWidth + 4;
int contentHeight = m_Rows * m_ContentHeight + 4;
bool showScrollButtons = isHorizontal ? contentWidth > availableWidth : contentHeight > availableHeight;
if (showScrollButtons)
{
availableHeight -= SCROLL_BTN_SIZE * 2;
availableWidth -= SCROLL_BTN_SIZE * 2;
}
if (isHorizontal && evt.type == EventType.ScrollWheel && evt.delta.sqrMagnitude > .001f)
{
m_Scroll.value = new Vector2(m_Scroll.value.x + evt.delta.y * 10f, m_Scroll.value.y);
ScheduleRepaint();
}
// the math for matching layout group width for icons is easy enough, but text
// is a lot more complex. so for horizontal text toolbars always show the horizontal
// scroll buttons.
int maxHorizontalScroll = !isIconMode ? 10000 : contentWidth - availableWidth;
int maxVerticalScroll = contentHeight - availableHeight;
// only change before a layout event
if (m_ShowScrollButtons != showScrollButtons && evt.type == EventType.Layout)
{
m_ShowScrollButtons = showScrollButtons;
}
if (m_ShowScrollButtons)
{
if (isHorizontal)
{
GUILayout.BeginHorizontal();
GUI.enabled = ((Vector2)m_Scroll).x > 0;
if (GUILayout.Button(scrollIconLeft, UI.EditorGUIUtility.ButtonNoBackgroundSmallMarginStyle, GUILayout.ExpandHeight(true)))
{
StartScrollAnimation(Mathf.Max(((Vector2)m_Scroll).x - availableWidth, 0f), 0f);
}
GUI.enabled = true;
}
else
{
GUI.enabled = ((Vector2)m_Scroll).y > 0;
if (GUILayout.Button(scrollIconUp, UI.EditorGUIUtility.ButtonNoBackgroundSmallMarginStyle))
{
StartScrollAnimation(0f, Mathf.Max(((Vector2)m_Scroll).y - availableHeight, 0f));
}
GUI.enabled = true;
}
}
m_Scroll.value = GUILayout.BeginScrollView(m_Scroll.value, false, false, GUIStyle.none, GUIStyle.none, GUIStyle.none);
bool tooltipShown = false,
hovering = false;
Rect optionRect = new Rect(0f, 0f, 0f, 0f);
GUILayout.BeginHorizontal();
// e.mousePosition != mpos at this point - @todo figure out why
bool windowContainsMouse = window == EditorWindow.mouseOverWindow &&
mpos.x > 0 && mpos.x < window.position.width &&
mpos.y > 0 && mpos.y < window.position.height;
int columnCount = 0;
for (int actionIndex = 0; actionIndex < m_ActionsLength; actionIndex++)
{
var action = m_Actions[actionIndex];
if (!IsActionValid(action))
{
continue;
}
if (isIconMode)
{
if (action.DoButton(isHorizontal, evt.alt, ref optionRect, GUILayout.MaxHeight(m_ContentHeight + 12)) && !evt.shift)
{
// test for alt click / hover
optionRect.x -= m_Scroll.value.x;
optionRect.y -= m_Scroll.value.y;
if (windowContainsMouse &&
evt.type != EventType.Layout &&
optionRect.Contains(evt.mousePosition))
{
hoveringTooltipName = action.tooltip.title + "_alt";
tooltipTimerRefresh = .5f;
hovering = true;
if (showTooltipTimer)
{
tooltipShown = true;
ShowTooltip(optionRect, "Alt + Click for Options ", m_Scroll);
}
}
}
}
else
{
if (m_Columns < 2)
{
action.DoButton(isHorizontal, evt.alt, ref optionRect);
}
else
{
action.DoButton(isHorizontal, evt.alt, ref optionRect, GUILayout.MinWidth(m_ContentWidth));
}
}
Rect buttonRect = GUILayoutUtility.GetLastRect();
if (windowContainsMouse &&
evt.type != EventType.Layout &&
!hovering &&
buttonRect.Contains(evt.mousePosition))
{
hoveringTooltipName = action.tooltip.title;
tooltipTimerRefresh = 1f;
if (evt.shift || showTooltipTimer)
{
tooltipShown = true;
ShowTooltip(buttonRect, action.tooltip, m_Scroll);
}
hovering = true;
}
if (++columnCount >= m_Columns)
{
columnCount = 0;
GUILayout.EndHorizontal();
GUILayout.BeginHorizontal();
}
}
GUILayout.FlexibleSpace();
GUILayout.EndHorizontal();
GUILayout.EndScrollView();
if (m_ShowScrollButtons)
{
if (isHorizontal)
{
GUI.enabled = m_Scroll.value.x < maxHorizontalScroll - 2;
if (GUILayout.Button(scrollIconRight, UI.EditorGUIUtility.ButtonNoBackgroundSmallMarginStyle, GUILayout.ExpandHeight(true)))
{
StartScrollAnimation(Mathf.Min(m_Scroll.value.x + availableWidth + 2, maxHorizontalScroll), 0f);
}
GUI.enabled = true;
GUILayout.EndHorizontal();
}
else
{
GUI.enabled = m_Scroll.value.y < maxVerticalScroll - 2;
if (GUILayout.Button(scrollIconDown, UI.EditorGUIUtility.ButtonNoBackgroundSmallMarginStyle))
{
StartScrollAnimation(0f, Mathf.Min(m_Scroll.value.y + availableHeight + 2, maxVerticalScroll));
}
GUI.enabled = true;
}
}
if ((evt.type == EventType.Repaint || evt.type == EventType.MouseMove) && !tooltipShown)
{
TooltipEditor.Hide();
}
if (evt.type != EventType.Layout && !hovering)
{
tooltipTimer.item1 = "";
}
m_WantsRepaint |= EditorWindow.mouseOverWindow == window && evt.type == EventType.MouseMove;
if (Application.isFocused && m_WantsRepaint)
{
window.Repaint();
}
m_WantsRepaint = false;
}