// Change the value and hide the dropdown.
private void OnSelectItem(IMCToggle toggle)
{
if (!toggle.isOn)
{
toggle.isOn = true;
}
int selectedIndex = -1;
Transform tr = toggle.transform;
Transform parent = tr.parent;
for (int i = 0; i < parent.childCount; i++)
{
if (parent.GetChild(i) == tr)
{
// Subtract one to account for template child.
selectedIndex = i - 1;
break;
}
}
if (selectedIndex < 0)
{
return;
}
value = selectedIndex;
Hide();
}
public void UnregisterToggle(IMCToggle toggle)
{
if (m_Toggles.Contains(toggle))
{
m_Toggles.Remove(toggle);
}
}
public void RegisterToggle(IMCToggle toggle)
{
if (!m_Toggles.Contains(toggle))
{
m_Toggles.Add(toggle);
}
}
private void ValidateToggleIsInGroup(IMCToggle toggle)
{
if (toggle == null || !m_Toggles.Contains(toggle))
{
throw new ArgumentException(string.Format("Toggle {0} is not part of ToggleGroup {1}", new object[] { toggle, this }));
}
}
public static GameObject CreateToggle(Resources resources)
{
// Set up hierarchy
GameObject toggleRoot = CreateUIElementRoot("IMC Toggle", s_ThinElementSize);
GameObject background = CreateUIObject("Background", toggleRoot);
GameObject checkmark = CreateUIObject("Checkmark", background);
GameObject childLabel = CreateUIObject("Label", toggleRoot);
// Set up components
IMCToggle toggle = toggleRoot.AddComponent <IMCToggle>();
toggle.isOn = true;
IMCImage bgImage = background.AddComponent <IMCImage>();
bgImage.sprite = resources.standard;
bgImage.type = IMCImage.Type.Sliced;
bgImage.color = s_DefaultSelectableColor;
IMCImage checkmarkImage = checkmark.AddComponent <IMCImage>();
checkmarkImage.sprite = resources.checkmark;
IMCText label = childLabel.AddComponent <IMCText>();
label.text = "Toggle";
label.raycast = false;
SetDefaultTextValues(label);
//toggle.backGround = bgImage;
toggle.graphic = checkmarkImage;
toggle.targetGraphic = bgImage;
SetDefaultColorTransitionValues(toggle);
RectTransform bgRect = background.GetComponent <RectTransform>();
bgRect.anchorMin = new Vector2(0f, 1f);
bgRect.anchorMax = new Vector2(0f, 1f);
bgRect.anchoredPosition = new Vector2(10f, -10f);
bgRect.sizeDelta = new Vector2(kThinHeight, kThinHeight);
RectTransform checkmarkRect = checkmark.GetComponent <RectTransform>();
checkmarkRect.anchorMin = new Vector2(0.5f, 0.5f);
checkmarkRect.anchorMax = new Vector2(0.5f, 0.5f);
checkmarkRect.anchoredPosition = Vector2.zero;
checkmarkRect.sizeDelta = new Vector2(20f, 20f);
RectTransform labelRect = childLabel.GetComponent <RectTransform>();
labelRect.anchorMin = new Vector2(0f, 0f);
labelRect.anchorMax = new Vector2(1f, 1f);
labelRect.offsetMin = new Vector2(23f, 1f);
labelRect.offsetMax = new Vector2(-5f, -2f);
return(toggleRoot);
}
public void NotifyToggleOn(IMCToggle toggle)
{
ValidateToggleIsInGroup(toggle);
// disable all toggles in the group
for (var i = 0; i < m_Toggles.Count; i++)
{
if (m_Toggles[i] == toggle)
{
continue;
}
m_Toggles[i].isOn = false;
}
}
// Show the dropdown.
//
// Plan for dropdown scrolling to ensure dropdown is contained within screen.
//
// We assume the Canvas is the screen that the dropdown must be kept inside.
// This is always valid for screen space canvas modes.
// For world space canvases we don't know how it's used, but it could be e.g. for an in-game monitor.
// We consider it a fair constraint that the canvas must be big enough to contains dropdowns.
public void Show()
{
m_isShow = true;
lastValue = m_Value;
m_isOnHideChangedExecutionOnce = true;
if (!IsActive() || !IsInteractable() || m_Dropdown != null)
{
return;
}
if (!validTemplate)
{
SetupTemplate();
if (!validTemplate)
{
return;
}
}
// Get root Canvas.
var list = ListPool <Canvas> .Get();
gameObject.GetComponentsInParent(false, list);
if (list.Count == 0)
{
return;
}
Canvas rootCanvas = list[0];
ListPool <Canvas> .Release(list);
m_Template.gameObject.SetActive(true);
// Instantiate the drop-down template
m_Dropdown = CreateDropdownList(m_Template.gameObject);
m_Dropdown.name = "Dropdown List";
m_Dropdown.SetActive(true);
// Make drop-down RectTransform have same values as original.
RectTransform dropdownRectTransform = m_Dropdown.transform as RectTransform;
dropdownRectTransform.SetParent(m_Template.transform.parent, false);
// Instantiate the drop-down list items
// Find the dropdown item and disable it.
DropdownItem itemTemplate = m_Dropdown.GetComponentInChildren <DropdownItem>();
GameObject content = itemTemplate.rectTransform.parent.gameObject;
RectTransform contentRectTransform = content.transform as RectTransform;
itemTemplate.rectTransform.gameObject.SetActive(true);
// Get the rects of the dropdown and item
Rect dropdownContentRect = contentRectTransform.rect;
Rect itemTemplateRect = itemTemplate.rectTransform.rect;
// Calculate the visual offset between the item's edges and the background's edges
Vector2 offsetMin = itemTemplateRect.min - dropdownContentRect.min + (Vector2)itemTemplate.rectTransform.localPosition;
Vector2 offsetMax = itemTemplateRect.max - dropdownContentRect.max + (Vector2)itemTemplate.rectTransform.localPosition;
Vector2 itemSize = itemTemplateRect.size;
m_Items.Clear();
IMCToggle prev = null;
for (int i = 0; i < options.Count; ++i)
{
OptionData data = options[i];
DropdownItem item = AddItem(data, value == i, itemTemplate, m_Items);
if (item == null)
{
continue;
}
// Automatically set up a toggle state change listener
item.toggle.isOn = value == i;
item.toggle.onValueChanged.AddListener(x => OnSelectItem(item.toggle));
// Select current option
if (item.toggle.isOn)
{
item.toggle.Select();
}
// Automatically set up explicit navigation
if (prev != null)
{
Navigation prevNav = prev.navigation;
Navigation toggleNav = item.toggle.navigation;
prevNav.mode = Navigation.Mode.Explicit;
toggleNav.mode = Navigation.Mode.Explicit;
prevNav.selectOnDown = item.toggle;
prevNav.selectOnRight = item.toggle;
toggleNav.selectOnLeft = prev;
toggleNav.selectOnUp = prev;
prev.navigation = prevNav;
item.toggle.navigation = toggleNav;
}
prev = item.toggle;
}
if (ShowItemAction != null)
{
ShowItemAction();
}
// Reposition all items now that all of them have been added
Vector2 sizeDelta = contentRectTransform.sizeDelta;
sizeDelta.y = itemSize.y * m_Items.Count /*+ offsetMin.y - offsetMax.y*/;
contentRectTransform.sizeDelta = sizeDelta;
float extraSpace = dropdownRectTransform.rect.height - contentRectTransform.rect.height;
if (extraSpace > 0)
{
dropdownRectTransform.sizeDelta = new Vector2(dropdownRectTransform.sizeDelta.x, dropdownRectTransform.sizeDelta.y - extraSpace);
}
// Invert anchoring and position if dropdown is partially or fully outside of canvas rect.
// Typically this will have the effect of placing the dropdown above the button instead of below,
// but it works as inversion regardless of initial setup.
Vector3[] corners = new Vector3[4];
dropdownRectTransform.GetWorldCorners(corners);
bool outside = false;
RectTransform rootCanvasRectTransform = rootCanvas.transform as RectTransform;
for (int i = 0; i < 4; i++)
{
Vector3 corner = rootCanvasRectTransform.InverseTransformPoint(corners[i]);
if (!rootCanvasRectTransform.rect.Contains(corner))
{
outside = true;
break;
}
}
if (outside)
{
RectTransformUtility.FlipLayoutOnAxis(dropdownRectTransform, 0, false, false);
RectTransformUtility.FlipLayoutOnAxis(dropdownRectTransform, 1, false, false);
}
for (int i = 0; i < m_Items.Count; i++)
{
RectTransform itemRect = m_Items[i].rectTransform;
itemRect.anchorMin = new Vector2(itemRect.anchorMin.x, 0);
itemRect.anchorMax = new Vector2(itemRect.anchorMax.x, 0);
itemRect.anchoredPosition = new Vector2(itemRect.anchoredPosition.x, /* offsetMin.y*/ +itemSize.y * (m_Items.Count - 1 - i) + itemSize.y * itemRect.pivot.y);
itemRect.sizeDelta = new Vector2(itemRect.sizeDelta.x, itemSize.y);
}
// Fade in the popup
AlphaFadeList(0.15f, 0f, 1f);
// Make drop-down template and item template inactive
m_Template.gameObject.SetActive(false);
itemTemplate.gameObject.SetActive(false);
m_Blocker = CreateBlocker(rootCanvas);
}
private void SetupTemplate()
{
validTemplate = false;
if (!m_Template)
{
Debug.LogError("The dropdown template is not assigned. The template needs to be assigned and must have a child GameObject with a Toggle component serving as the item.", this);
return;
}
GameObject templateGo = m_Template.gameObject;
templateGo.SetActive(true);
IMCToggle itemToggle = m_Template.GetComponentInChildren <IMCToggle>();
validTemplate = true;
if (!itemToggle || itemToggle.transform == template)
{
validTemplate = false;
Debug.LogError("The dropdown template is not valid. The template must have a child GameObject with a Toggle component serving as the item.", template);
}
else if (!(itemToggle.transform.parent is RectTransform))
{
validTemplate = false;
Debug.LogError("The dropdown template is not valid. The child GameObject with a Toggle component (the item) must have a RectTransform on its parent.", template);
}
else if (itemText != null && !itemText.transform.IsChildOf(itemToggle.transform))
{
validTemplate = false;
Debug.LogError("The dropdown template is not valid. The Item Text must be on the item GameObject or children of it.", template);
}
else if (itemImage != null && !itemImage.transform.IsChildOf(itemToggle.transform))
{
validTemplate = false;
Debug.LogError("The dropdown template is not valid. The Item Image must be on the item GameObject or children of it.", template);
}
if (!validTemplate)
{
templateGo.SetActive(false);
return;
}
DropdownItem item = itemToggle.gameObject.AddComponent <DropdownItem>();
item.text = m_ItemText;
item.image = m_ItemImage;
item.toggle = itemToggle;
item.rectTransform = (RectTransform)itemToggle.transform;
Canvas popupCanvas = GetOrAddComponent <Canvas>(templateGo);
popupCanvas.overrideSorting = true;
popupCanvas.sortingOrder = 30000;
GetOrAddComponent <IMCGraphicRaycaster>(templateGo);
GetOrAddComponent <CanvasGroup>(templateGo);
templateGo.SetActive(false);
validTemplate = true;
}
public static GameObject CreateTabView(Resources resources)
{
GameObject go = CreateUIElementRoot("IMC Tab View", s_ImageElementSize);
go.AddComponent <CanvasGroup>();
IMCTabView tabView = go.AddComponent <IMCTabView>();
IMCImage image = go.AddComponent <IMCImage>();
image.sprite = resources.background;
image.type = IMCImage.Type.Sliced;
image.color = s_PanelColor;
RectTransform tabViewRT = go.GetComponent <RectTransform>();
tabViewRT.sizeDelta = new Vector2(600, 250);
tabViewRT.pivot = new Vector2(0.5f, 1);
GameObject toggleContainer = CreateUIElementRoot("ToggleContainer", s_ImageElementSize);
RectTransform toggleContainerRT = toggleContainer.GetComponent <RectTransform>();
toggleContainerRT.SetParent(tabViewRT);
toggleContainerRT.anchorMin = new Vector2(0.5f, 1);
toggleContainerRT.anchorMax = new Vector2(0.5f, 1);
toggleContainerRT.pivot = new Vector2(0.5f, 0);
toggleContainerRT.anchoredPosition = Vector2.zero;
toggleContainerRT.sizeDelta = new Vector2(600, 50);
ContentSizeFitter contentSizeFitter = toggleContainer.AddComponent <ContentSizeFitter>();
contentSizeFitter.horizontalFit = IMCUI.UI.ContentSizeFitter.FitMode.PreferredSize;
toggleContainer.AddComponent <IMCHorizontalLayoutGroup>();
ToggleGroup toggleGroup = toggleContainer.AddComponent <ToggleGroup>();
for (int i = 0; i <= 2; i++)
{
GameObject toggle = CreateToggle(resources);
toggle.transform.FindChild("Label").GetComponent <IMCText>().raycast = false;//if don't shut down IMCText is raycast attribute ,occur BUG.
IMCTabViewToggle tabViewToggle = toggle.AddComponent <IMCTabViewToggle>();
tabViewToggle.tabView = tabViewRT.GetComponent <IMCTabView>();
tabViewRT.GetComponent <IMCTabView>().toggles.Add(tabViewToggle);
// in editor script , add event invalidity.
//tabViewToggle.toggle.onValueChanged.AddListener(tabViewToggle.parent.TabViewControlShowOrClose);
IMCToggle toggleT = toggle.GetComponent <IMCToggle>();
toggleT.name = toggleT.name + i.ToString();
toggleT.transform.SetParent(toggleContainerRT);
toggleT.group = toggleGroup;
// because toggleContainer is ToggleGroup component,ToggleGroup is Execution order impact Toggle,so annotation this code .
//if (i == 0)
// toggleT.isOn = true;
//else
// toggleT.isOn = false;
RectTransform backGround = toggle.transform.GetChild(0).GetComponent <RectTransform>();
backGround.anchorMin = Vector2.zero;
backGround.anchorMax = Vector2.one;
backGround.pivot = Vector2.zero;
backGround.anchoredPosition = Vector2.zero;
backGround.sizeDelta = Vector2.zero;
RectTransform checkmark = backGround.GetChild(0).GetComponent <RectTransform>();
checkmark.anchorMin = Vector2.zero;
checkmark.anchorMax = Vector2.one;
checkmark.anchoredPosition = Vector2.zero;
checkmark.sizeDelta = Vector2.zero;
RectTransform labelRT = toggle.transform.GetChild(1).GetComponent <RectTransform>();
labelRT.anchoredPosition = Vector2.zero;
labelRT.sizeDelta = Vector2.zero;
labelRT.GetComponent <IMCText>().alignment = TextAnchor.MiddleCenter;
LayoutElement layoutElement = toggle.AddComponent <LayoutElement>();
layoutElement.preferredWidth = 200;
layoutElement.preferredHeight = 20;
}
GameObject contentContainer = CreateUIElementRoot("ContentContainer", s_ImageElementSize);
RectTransform contentContainerRT = contentContainer.GetComponent <RectTransform>();
contentContainerRT.sizeDelta = tabViewRT.sizeDelta;
contentContainerRT.SetParent(tabViewRT);
contentContainerRT.anchoredPosition = Vector2.zero;
for (int i = 0; i <= 2; i++)
{
GameObject toggleContent = CreateUIElementRoot("TabContent" + i.ToString(), s_ImageElementSize);
IMCImage toggleContentImage = toggleContent.AddComponent <IMCImage>();
toggleContentImage.sprite = resources.background;
toggleContentImage.type = IMCImage.Type.Sliced;
toggleContentImage.color = s_PanelColor;
tabViewRT.GetComponent <IMCTabView>().contents.Add(toggleContentImage);
RectTransform toggleContentRT = toggleContent.GetComponent <RectTransform>();
toggleContentRT.sizeDelta = tabViewRT.sizeDelta;
toggleContentRT.SetParent(contentContainerRT);
toggleContentRT.anchoredPosition = Vector2.zero;
}
return(go);
}
public static GameObject CreateDropdown(Resources resources)
{
GameObject root = CreateUIElementRoot("IMC Dropdown", s_ThickElementSize);
GameObject label = CreateUIObject("Label", root);
GameObject arrow = CreateUIObject("Arrow", root);
GameObject template = CreateUIObject("Template", root);
GameObject viewport = CreateUIObject("Viewport", template);
GameObject content = CreateUIObject("Content", viewport);
GameObject item = CreateUIObject("Item", content);
GameObject itemBackground = CreateUIObject("Item Background", item);
GameObject itemCheckmark = CreateUIObject("Item Checkmark", item);
GameObject itemLabel = CreateUIObject("Item Label", item);
// Sub controls.
GameObject scrollbar = CreateScrollbar(resources);
scrollbar.name = "Scrollbar";
SetParentAndAlign(scrollbar, template);
IMCScrollbar scrollbarScrollbar = scrollbar.GetComponent <IMCScrollbar>();
scrollbarScrollbar.SetDirection(IMCScrollbar.Direction.BottomToTop, true);
RectTransform vScrollbarRT = scrollbar.GetComponent <RectTransform>();
vScrollbarRT.anchorMin = Vector2.right;
vScrollbarRT.anchorMax = Vector2.one;
vScrollbarRT.pivot = Vector2.one;
vScrollbarRT.sizeDelta = new Vector2(vScrollbarRT.sizeDelta.x, 0);
// Setup item UI components.
IMCText itemLabelText = itemLabel.AddComponent <IMCText>();
itemLabelText.raycast = false;
SetDefaultTextValues(itemLabelText);
itemLabelText.alignment = TextAnchor.MiddleLeft;
IMCImage itemBackgroundImage = itemBackground.AddComponent <IMCImage>();
itemBackgroundImage.color = new Color32(245, 245, 245, 255);
IMCImage itemCheckmarkImage = itemCheckmark.AddComponent <IMCImage>();
itemCheckmarkImage.sprite = resources.checkmark;
IMCToggle itemToggle = item.AddComponent <IMCToggle>();
itemToggle.targetGraphic = itemBackgroundImage;
itemToggle.graphic = itemCheckmarkImage;
itemToggle.isOn = true;
// Setup template UI components.
IMCImage templateImage = template.AddComponent <IMCImage>();
templateImage.sprite = resources.standard;
templateImage.type = IMCImage.Type.Sliced;
IMCScrollRect templateScrollRect = template.AddComponent <IMCScrollRect>();
templateScrollRect.content = (RectTransform)content.transform;
templateScrollRect.viewport = (RectTransform)viewport.transform;
templateScrollRect.horizontal = false;
templateScrollRect.movementType = IMCScrollRect.MovementType.Clamped;
templateScrollRect.verticalScrollbar = scrollbarScrollbar;
templateScrollRect.verticalScrollbarVisibility = IMCScrollRect.ScrollbarVisibility.AutoHideAndExpandViewport;
templateScrollRect.verticalScrollbarSpacing = -3;
Mask scrollRectMask = viewport.AddComponent <Mask>();
scrollRectMask.showMaskGraphic = false;
IMCImage viewportImage = viewport.AddComponent <IMCImage>();
viewportImage.sprite = resources.mask;
viewportImage.type = IMCImage.Type.Sliced;
// Setup dropdown UI components.
IMCText labelText = label.AddComponent <IMCText>();
SetDefaultTextValues(labelText);
labelText.text = "Option A";
labelText.raycast = false;
labelText.alignment = TextAnchor.MiddleLeft;
IMCImage arrowImage = arrow.AddComponent <IMCImage>();
arrowImage.sprite = resources.dropdown;
IMCImage backgroundImage = root.AddComponent <IMCImage>();
backgroundImage.sprite = resources.standard;
backgroundImage.color = s_DefaultSelectableColor;
backgroundImage.type = IMCImage.Type.Sliced;
IMCDropdown dropdown = root.AddComponent <IMCDropdown>();
dropdown.targetGraphic = backgroundImage;
SetDefaultColorTransitionValues(dropdown);
dropdown.template = template.GetComponent <RectTransform>();
dropdown.captionText = labelText;
dropdown.itemText = itemLabelText;
// Setting default Item list.
itemLabelText.text = "Option A";
dropdown.options.Add(new IMCDropdown.OptionData {
text = "Option A"
});
dropdown.options.Add(new IMCDropdown.OptionData {
text = "Option B"
});
dropdown.options.Add(new IMCDropdown.OptionData {
text = "Option C"
});
// Set up RectTransforms.
RectTransform labelRT = label.GetComponent <RectTransform>();
labelRT.anchorMin = Vector2.zero;
labelRT.anchorMax = Vector2.one;
labelRT.offsetMin = new Vector2(10, 6);
labelRT.offsetMax = new Vector2(-25, -7);
RectTransform arrowRT = arrow.GetComponent <RectTransform>();
arrowRT.anchorMin = new Vector2(1, 0.5f);
arrowRT.anchorMax = new Vector2(1, 0.5f);
arrowRT.sizeDelta = new Vector2(20, 20);
arrowRT.anchoredPosition = new Vector2(-15, 0);
RectTransform templateRT = template.GetComponent <RectTransform>();
templateRT.anchorMin = new Vector2(0, 0);
templateRT.anchorMax = new Vector2(1, 0);
templateRT.pivot = new Vector2(0.5f, 1);
templateRT.anchoredPosition = new Vector2(0, 2);
templateRT.sizeDelta = new Vector2(0, 150);
RectTransform viewportRT = viewport.GetComponent <RectTransform>();
viewportRT.anchorMin = new Vector2(0, 0);
viewportRT.anchorMax = new Vector2(1, 1);
viewportRT.sizeDelta = new Vector2(-18, 0);
viewportRT.pivot = new Vector2(0, 1);
RectTransform contentRT = content.GetComponent <RectTransform>();
contentRT.anchorMin = new Vector2(0f, 1);
contentRT.anchorMax = new Vector2(1f, 1);
contentRT.pivot = new Vector2(0.5f, 1);
contentRT.anchoredPosition = new Vector2(0, 0);
contentRT.sizeDelta = new Vector2(0, 28);
RectTransform itemRT = item.GetComponent <RectTransform>();
itemRT.anchorMin = new Vector2(0, 0.5f);
itemRT.anchorMax = new Vector2(1, 0.5f);
itemRT.sizeDelta = new Vector2(0, 20);
RectTransform itemBackgroundRT = itemBackground.GetComponent <RectTransform>();
itemBackgroundRT.anchorMin = Vector2.zero;
itemBackgroundRT.anchorMax = Vector2.one;
itemBackgroundRT.sizeDelta = Vector2.zero;
RectTransform itemCheckmarkRT = itemCheckmark.GetComponent <RectTransform>();
itemCheckmarkRT.anchorMin = new Vector2(0, 0.5f);
itemCheckmarkRT.anchorMax = new Vector2(0, 0.5f);
itemCheckmarkRT.sizeDelta = new Vector2(20, 20);
itemCheckmarkRT.anchoredPosition = new Vector2(10, 0);
RectTransform itemLabelRT = itemLabel.GetComponent <RectTransform>();
itemLabelRT.anchorMin = Vector2.zero;
itemLabelRT.anchorMax = Vector2.one;
itemLabelRT.offsetMin = new Vector2(20, 1);
itemLabelRT.offsetMax = new Vector2(-10, -2);
template.SetActive(false);
return(root);
}