// Unity C# reference source

// Copyright (c) Unity Technologies. For terms of use, see

// https://unity3d.com/legal/licenses/Unity_Reference_Only_License

using System;

using UnityEngine.Scripting;

namespace UnityEngine

{

public partial class GUI

{

private const float s_ScrollStepSize = 10f;

private static int s_ScrollControlId;

private static int s_HotTextField = -1;

private static readonly int s_BoxHash = "Box".GetHashCode();

private static readonly int s_RepeatButtonHash = "repeatButton".GetHashCode();

private static readonly int s_ToggleHash = "Toggle".GetHashCode();

private static readonly int s_ButtonGridHash = "ButtonGrid".GetHashCode();

private static readonly int s_SliderHash = "Slider".GetHashCode();

private static readonly int s_BeginGroupHash = "BeginGroup".GetHashCode();

private static readonly int s_ScrollviewHash = "scrollView".GetHashCode();

static GUI()

{

nextScrollStepTime = DateTime.Now; // whatever but null

}

internal static int scrollTroughSide { get; set; }

internal static DateTime nextScrollStepTime { get; set; }

private static GUISkin s_Skin;

// The global skin to use.

public static GUISkin skin

{

set

{

GUIUtility.CheckOnGUI();

DoSetSkin(value);

}

get

{

GUIUtility.CheckOnGUI();

return s_Skin;

}

}

internal static void DoSetSkin(GUISkin newSkin)

{

if (!newSkin)

newSkin = GUIUtility.GetDefaultSkin();

s_Skin = newSkin;

newSkin.MakeCurrent();

}

internal static void CleanupRoots()

{

// Remove references from roots, so GC can collect them.

// Required for Windows Store Apps when cleaning up everything on application quit.

// Otherwise managed roots are being freed after Unity managers are destroyed, in this case when finalizers are invoked for GUI* objects

// they're accessing non existent managers.

s_Skin = null;

// GUILayoutUtility.CleanupRoots indirectly invokes GUILayoutUtility ctor, which indirectly sets GUIStyle s_None, that's

// why we need to invoke GUILayoutUtility.CleanupRoots before GUIStyle.CleanupRoots

// UnityEngine.DLL!UnityEngine.GUIStyle.Init() Unknown

// UnityEngine.DLL!UnityEngine.GUIStyle.GUIStyle() Line 172 C#

//> UnityEngine.DLL!UnityEngine.GUIStyle.none.get() Line 590 C#

// UnityEngine.DLL!UnityEngine.GUILayoutGroup.GUILayoutGroup() Line 592 C#

// UnityEngine.DLL!UnityEngine.GUILayoutUtility.LayoutCache.LayoutCache() Line 19 C#

// UnityEngine.DLL!UnityEngine.GUILayoutUtility.GUILayoutUtility() Line 43 C#

// [Native to Managed Transition]

// UnityEngine.DLL!UnityEngine.GUILayoutUtility.CleanupRoots() Line 50 C#

GUIUtility.CleanupRoots();

GUILayoutUtility.CleanupRoots();

GUISkin.CleanupRoots();

GUIStyle.CleanupRoots();

}

// MATRIX

// The GUI transform matrix.

public static Matrix4x4 matrix

{

get { return GUIClip.GetMatrix(); }

set { GUIClip.SetMatrix(value); }

}

// The tooltip of the control the mouse is currently over, or which has keyboard focus. (RO).

public static string tooltip

{

get

{

string str = Internal_GetTooltip();

if (str != null)

return str;

return "";

}

set { Internal_SetTooltip(value); }

}

protected static string mouseTooltip => Internal_GetMouseTooltip();

protected static Rect tooltipRect

{

get { return s_ToolTipRect; }

set { s_ToolTipRect = value; }

}

internal static Rect s_ToolTipRect;

public static void Label(Rect position, string text)

{

Label(position, GUIContent.Temp(text), s_Skin.label);

}

public static void Label(Rect position, Texture image)

{

Label(position, GUIContent.Temp(image), s_Skin.label);

}

public static void Label(Rect position, GUIContent content)

{

Label(position, content, s_Skin.label);

}

public static void Label(Rect position, string text, GUIStyle style)

{

Label(position, GUIContent.Temp(text), style);

}

public static void Label(Rect position, Texture image, GUIStyle style)

{

Label(position, GUIContent.Temp(image), style);

}

// Make a text or texture label on screen.

public static void Label(Rect position, GUIContent content, GUIStyle style)

{

GUIUtility.CheckOnGUI();

DoLabel(position, content, style.m_Ptr);

}

// Draw a texture within a rectangle.

public static void DrawTexture(Rect position, Texture image)

{

DrawTexture(position, image, ScaleMode.StretchToFill);

}

// Draw a texture within a rectangle.

public static void DrawTexture(Rect position, Texture image, ScaleMode scaleMode)

{

DrawTexture(position, image, scaleMode, true);

}

// Draw a texture within a rectangle.

public static void DrawTexture(Rect position, Texture image, ScaleMode scaleMode , bool alphaBlend)

{

DrawTexture(position, image, scaleMode, alphaBlend, 0);

}

// Draw a texture within a rectangle.

public static void DrawTexture(Rect position, Texture image, ScaleMode scaleMode, bool alphaBlend, float imageAspect)

{

DrawTexture(position, image, scaleMode, alphaBlend, imageAspect, GUI.color, 0, 0);

}

// Draw a texture within a rectangle.

public static void DrawTexture(Rect position, Texture image, ScaleMode scaleMode, bool alphaBlend, float imageAspect, Color color, float borderWidth, float borderRadius)

{

var borderWidths = Vector4.one * borderWidth;

DrawTexture(position, image, scaleMode, alphaBlend, imageAspect, color, borderWidths, borderRadius);

}

// Draw a texture within a rectangle.

public static void DrawTexture(Rect position, Texture image, ScaleMode scaleMode, bool alphaBlend, float imageAspect, Color color, Vector4 borderWidths, float borderRadius)

{

var borderRadiuses = Vector4.one * borderRadius;

DrawTexture(position, image, scaleMode, alphaBlend, imageAspect, color, borderWidths, borderRadiuses);

}

// Draw a texture within a rectangle.

public static void DrawTexture(Rect position, Texture image, ScaleMode scaleMode, bool alphaBlend, float imageAspect, Color color, Vector4 borderWidths, Vector4 borderRadiuses)

{

GUIUtility.CheckOnGUI();

if (Event.current.type == EventType.Repaint)

{

if (image == null)

{

Debug.LogWarning("null texture passed to GUI.DrawTexture");

return;

}

if (imageAspect == 0)

imageAspect = (float)image.width / image.height;

Material mat = null;

if (borderWidths != Vector4.zero || borderRadiuses != Vector4.zero)

{

mat = roundedRectMaterial;

}

else

{

mat = alphaBlend ? blendMaterial : blitMaterial;

}

Internal_DrawTextureArguments arguments = new Internal_DrawTextureArguments

{

leftBorder = 0,

rightBorder = 0,

topBorder = 0,

bottomBorder = 0,

color = color,

borderWidths = borderWidths,

cornerRadiuses = borderRadiuses,

texture = image,

mat = mat

};

CalculateScaledTextureRects(position, scaleMode, imageAspect, ref arguments.screenRect, ref arguments.sourceRect);

Graphics.Internal_DrawTexture(ref arguments);

}

}

// Calculate screenrect and sourcerect for different scalemodes

internal static bool CalculateScaledTextureRects(Rect position, ScaleMode scaleMode, float imageAspect, ref Rect outScreenRect, ref Rect outSourceRect)

{

float destAspect = position.width / position.height;

bool ret = false;

switch (scaleMode)

{

case ScaleMode.StretchToFill:

outScreenRect = position;

outSourceRect = new Rect(0, 0, 1, 1);

ret = true;

break;

case ScaleMode.ScaleAndCrop:

if (destAspect > imageAspect)

{

float stretch = imageAspect / destAspect;

outScreenRect = position;

outSourceRect = new Rect(0, (1 - stretch) * .5f, 1, stretch);

ret = true;

}

else

{

float stretch = destAspect / imageAspect;

outScreenRect = position;

outSourceRect = new Rect(.5f - stretch * .5f, 0, stretch, 1);

ret = true;

}

break;

case ScaleMode.ScaleToFit:

if (destAspect > imageAspect)

{

float stretch = imageAspect / destAspect;

outScreenRect = new Rect(position.xMin + position.width * (1.0f - stretch) * .5f, position.yMin, stretch * position.width, position.height);

outSourceRect = new Rect(0, 0, 1, 1);

ret = true;

}

else

{

float stretch = destAspect / imageAspect;

outScreenRect = new Rect(position.xMin, position.yMin + position.height * (1.0f - stretch) * .5f, position.width, stretch * position.height);

outSourceRect = new Rect(0, 0, 1, 1);

ret = true;

}

break;

}

return ret;

}

// Draw a texture within a rectangle with the given texture coordinates. Use this function for clipping or tiling the image within the given rectangle.

public static void DrawTextureWithTexCoords(Rect position, Texture image, Rect texCoords)

{

DrawTextureWithTexCoords(position, image, texCoords, true);

}

// Draw a texture within a rectangle with the given texture coordinates. Use this function for clipping or tiling the image within the given rectangle.

public static void DrawTextureWithTexCoords(Rect position, Texture image, Rect texCoords, bool alphaBlend)

{

GUIUtility.CheckOnGUI();

if (Event.current.type == EventType.Repaint)

{

Material mat = alphaBlend ? blendMaterial : blitMaterial;

Internal_DrawTextureArguments arguments = new Internal_DrawTextureArguments();

arguments.texture = image;

arguments.mat = mat;

arguments.leftBorder = 0; arguments.rightBorder = 0; arguments.topBorder = 0; arguments.bottomBorder = 0;

arguments.color = GUI.color;

arguments.screenRect = position;

arguments.sourceRect = texCoords;

Graphics.Internal_DrawTexture(ref arguments);

}

}

public static void Box(Rect position, string text)

{

Box(position, GUIContent.Temp(text), s_Skin.box);

}

public static void Box(Rect position, Texture image)

{

Box(position, GUIContent.Temp(image), s_Skin.box);

}

public static void Box(Rect position, GUIContent content)

{

Box(position, content, s_Skin.box);

}

public static void Box(Rect position, string text, GUIStyle style)

{

Box(position, GUIContent.Temp(text), style);

}

public static void Box(Rect position, Texture image, GUIStyle style)

{

Box(position, GUIContent.Temp(image), style);

}

// Make a graphical box.

public static void Box(Rect position, GUIContent content, GUIStyle style)

{

GUIUtility.CheckOnGUI();

int id = GUIUtility.GetControlID(s_BoxHash, FocusType.Passive);

if (Event.current.type == EventType.Repaint)

{

style.Draw(position, content, id);

}

}

public static bool Button(Rect position, string text)

{

return Button(position, GUIContent.Temp(text), s_Skin.button);

}

public static bool Button(Rect position, Texture image)

{

return Button(position, GUIContent.Temp(image), s_Skin.button);

}

public static bool Button(Rect position, GUIContent content)

{

return Button(position, content, s_Skin.button);

}

public static bool Button(Rect position, string text, GUIStyle style)

{

return Button(position, GUIContent.Temp(text), style);

}

public static bool Button(Rect position, Texture image, GUIStyle style)

{

return Button(position, GUIContent.Temp(image), style);

}

// Make a single press button. The user clicks them and something happens immediately.

public static bool Button(Rect position, GUIContent content, GUIStyle style)

{

GUIUtility.CheckOnGUI();

return DoButton(position, content, style.m_Ptr);

}

public static bool RepeatButton(Rect position, string text)

{

return DoRepeatButton(position, GUIContent.Temp(text), s_Skin.button, FocusType.Passive);

}

public static bool RepeatButton(Rect position, Texture image)

{

return DoRepeatButton(position, GUIContent.Temp(image), s_Skin.button, FocusType.Passive);

}

public static bool RepeatButton(Rect position, GUIContent content)

{

return DoRepeatButton(position, content, s_Skin.button, FocusType.Passive);

}

public static bool RepeatButton(Rect position, string text, GUIStyle style)

{

return DoRepeatButton(position, GUIContent.Temp(text), style, FocusType.Passive);

}

public static bool RepeatButton(Rect position, Texture image, GUIStyle style)

{

return DoRepeatButton(position, GUIContent.Temp(image), style, FocusType.Passive);

}

// Make a button that is active as long as the user holds it down.

public static bool RepeatButton(Rect position, GUIContent content, GUIStyle style)

{

return DoRepeatButton(position, content, style, FocusType.Passive);

}

private static bool DoRepeatButton(Rect position, GUIContent content, GUIStyle style, FocusType focusType)

{

GUIUtility.CheckOnGUI();

int id = GUIUtility.GetControlID(s_RepeatButtonHash, focusType, position);

switch (Event.current.GetTypeForControl(id))

{

case EventType.MouseDown:

// If the mouse is inside the button, we say that we're the hot control

if (position.Contains(Event.current.mousePosition))

{

GUIUtility.hotControl = id;

Event.current.Use();

}

return false;

case EventType.MouseUp:

if (GUIUtility.hotControl == id)

{

GUIUtility.hotControl = 0;

// If we got the mousedown, the mouseup is ours as well

// (no matter if the click was in the button or not)

Event.current.Use();

// But we only return true if the button was actually clicked

return position.Contains(Event.current.mousePosition);

}

return false;

case EventType.Repaint:

style.Draw(position, content, id);

return id == GUIUtility.hotControl && position.Contains(Event.current.mousePosition);

}

return false;

}

public static string TextField(Rect position, string text)

{

GUIContent t = GUIContent.Temp(text);

DoTextField(position, GUIUtility.GetControlID(FocusType.Keyboard, position), t, false, -1, GUI.skin.textField);

return t.text;

}

public static string TextField(Rect position, string text, int maxLength)

{

GUIContent t = GUIContent.Temp(text);

DoTextField(position, GUIUtility.GetControlID(FocusType.Keyboard, position), t, false, maxLength, GUI.skin.textField);

return t.text;

}

public static string TextField(Rect position, string text, GUIStyle style)

{

GUIContent t = GUIContent.Temp(text);

DoTextField(position, GUIUtility.GetControlID(FocusType.Keyboard, position), t, false, -1, style);

return t.text;

}

// Make a single-line text field where the user can edit a string.

public static string TextField(Rect position, string text, int maxLength, GUIStyle style)

{

GUIContent t = GUIContent.Temp(text);

DoTextField(position, GUIUtility.GetControlID(FocusType.Keyboard, position), t, false, maxLength, style);

return t.text;

}

public static string PasswordField(Rect position, string password, char maskChar)

{

return PasswordField(position, password, maskChar, -1, GUI.skin.textField);

}

public static string PasswordField(Rect position, string password, char maskChar, int maxLength)

{

return PasswordField(position, password, maskChar, maxLength, GUI.skin.textField);

}

public static string PasswordField(Rect position, string password, char maskChar, GUIStyle style)

{

return PasswordField(position, password, maskChar, -1, style);

}

// Make a text field where the user can enter a password.

public static string PasswordField(Rect position, string password, char maskChar, int maxLength, GUIStyle style)

{

GUIUtility.CheckOnGUI();

string strPassword = PasswordFieldGetStrToShow(password, maskChar);

GUIContent t = GUIContent.Temp(strPassword);

bool oldGUIChanged = GUI.changed;

GUI.changed = false;

if (TouchScreenKeyboard.isSupported)

DoTextField(position, GUIUtility.GetControlID(FocusType.Keyboard), t, false, maxLength, style, password, maskChar);

else

DoTextField(position, GUIUtility.GetControlID(FocusType.Keyboard, position), t, false, maxLength, style);

strPassword = GUI.changed ? t.text : password;

GUI.changed |= oldGUIChanged;

return strPassword;

}

internal static string PasswordFieldGetStrToShow(string password, char maskChar)

{

return (Event.current.type == EventType.Repaint || Event.current.type == EventType.MouseDown) ?

"".PadRight(password.Length, maskChar) : password;

}

public static string TextArea(Rect position, string text)

{

GUIContent t = GUIContent.Temp(text);

DoTextField(position, GUIUtility.GetControlID(FocusType.Keyboard, position), t, true, -1, GUI.skin.textArea);

return t.text;

}

public static string TextArea(Rect position, string text, int maxLength)

{

GUIContent t = GUIContent.Temp(text);

DoTextField(position, GUIUtility.GetControlID(FocusType.Keyboard, position), t, true, maxLength, GUI.skin.textArea);

return t.text;

}

public static string TextArea(Rect position, string text, GUIStyle style)

{

GUIContent t = GUIContent.Temp(text);

DoTextField(position, GUIUtility.GetControlID(FocusType.Keyboard, position), t, true, -1, style);

return t.text;

}

// Make a Multi-line text area where the user can edit a string.

public static string TextArea(Rect position, string text, int maxLength, GUIStyle style)

{

GUIContent t = GUIContent.Temp(text);

DoTextField(position, GUIUtility.GetControlID(FocusType.Keyboard, position), t, true, maxLength, style);

return t.text;

}

internal static void DoTextField(Rect position, int id, GUIContent content, bool multiline, int maxLength, GUIStyle style)

{

DoTextField(position, id, content, multiline, maxLength, style, null);

}

internal static void DoTextField(Rect position, int id, GUIContent content, bool multiline, int maxLength, GUIStyle style, string secureText)

{

DoTextField(position, id, content, multiline, maxLength, style, secureText, '\0');

}

internal static void DoTextField(Rect position, int id, GUIContent content, bool multiline, int maxLength, GUIStyle style, string secureText, char maskChar)

{

GUIUtility.CheckOnGUI();

//Pre-cull input string to maxLength.

if (maxLength >= 0 && content.text.Length > maxLength)

content.text = content.text.Substring(0, maxLength);

TextEditor editor = (TextEditor)GUIUtility.GetStateObject(typeof(TextEditor), id);

editor.text = content.text;

editor.SaveBackup();

editor.position = position;

editor.style = style;

editor.multiline = multiline;

editor.controlID = id;

editor.DetectFocusChange();

if (TouchScreenKeyboard.isSupported)

{

HandleTextFieldEventForTouchscreen(position, id, content, multiline, maxLength, style, secureText, maskChar, editor);

}

else // Not supported means we have a physical keyboard attached

{

HandleTextFieldEventForDesktop(position, id, content, multiline, maxLength, style, editor);

}

// Scroll offset might need to be updated

editor.UpdateScrollOffsetIfNeeded(Event.current);

}

private static void HandleTextFieldEventForTouchscreen(Rect position, int id, GUIContent content, bool multiline, int maxLength,

GUIStyle style, string secureText, char maskChar, TextEditor editor)

{

var evt = Event.current;

switch (evt.type)

{

case EventType.MouseDown:

if (position.Contains(evt.mousePosition))

{

GUIUtility.hotControl = id;

// Disable keyboard for previously active text field, if any

if (s_HotTextField != -1 && s_HotTextField != id)

{

TextEditor currentEditor = (TextEditor)GUIUtility.GetStateObject(typeof(TextEditor), s_HotTextField);

currentEditor.keyboardOnScreen = null;

}

s_HotTextField = id;

// in player setting keyboard control calls OnFocus every time, don't want that. In editor it does not do that for some reason

if (GUIUtility.keyboardControl != id)

GUIUtility.keyboardControl = id;

editor.keyboardOnScreen = TouchScreenKeyboard.Open(

secureText ?? content.text,

TouchScreenKeyboardType.Default,

true, // autocorrection

multiline,

(secureText != null));

evt.Use();

}

break;

case EventType.Repaint:

if (editor.keyboardOnScreen != null)

{

content.text = editor.keyboardOnScreen.text;

if (maxLength >= 0 && content.text.Length > maxLength)

content.text = content.text.Substring(0, maxLength);

if (editor.keyboardOnScreen.status != TouchScreenKeyboard.Status.Visible)

{

editor.keyboardOnScreen = null;

changed = true;

}

}

// if we use system keyboard we will have normal text returned (hiding symbols is done inside os)

// so before drawing make sure we hide them ourselves

string clearText = content.text;

if (secureText != null)

content.text = PasswordFieldGetStrToShow(clearText, maskChar);

style.Draw(position, content, id, false);

content.text = clearText;

break;

}

}

private static void HandleTextFieldEventForDesktop(Rect position, int id, GUIContent content, bool multiline, int maxLength, GUIStyle style, TextEditor editor)

{

var evt = Event.current;

bool change = false;

switch (evt.type)

{

case EventType.MouseDown:

if (position.Contains(evt.mousePosition))

{

GUIUtility.hotControl = id;

GUIUtility.keyboardControl = id;

editor.m_HasFocus = true;

editor.MoveCursorToPosition(Event.current.mousePosition);

if (Event.current.clickCount == 2 && GUI.skin.settings.doubleClickSelectsWord)

{

editor.SelectCurrentWord();

editor.DblClickSnap(TextEditor.DblClickSnapping.WORDS);

editor.MouseDragSelectsWholeWords(true);

}

if (Event.current.clickCount == 3 && GUI.skin.settings.tripleClickSelectsLine)

{

editor.SelectCurrentParagraph();

editor.MouseDragSelectsWholeWords(true);

editor.DblClickSnap(TextEditor.DblClickSnapping.PARAGRAPHS);

}

evt.Use();

}

break;

case EventType.MouseDrag:

if (GUIUtility.hotControl == id)

{

if (evt.shift)

editor.MoveCursorToPosition(Event.current.mousePosition);

else

editor.SelectToPosition(Event.current.mousePosition);

evt.Use();

}

break;

case EventType.MouseUp:

if (GUIUtility.hotControl == id)

{

editor.MouseDragSelectsWholeWords(false);

GUIUtility.hotControl = 0;

evt.Use();

}

break;

case EventType.KeyDown:

if (GUIUtility.keyboardControl != id)

return;

if (editor.HandleKeyEvent(evt))

{

evt.Use();

change = true;

content.text = editor.text;

break;

}

// Ignore tab & shift-tab in textfields

if (evt.keyCode == KeyCode.Tab || evt.character == '\t')

return;

char c = evt.character;

if (c == '\n' && !multiline && !evt.alt)

return;

// Simplest test: only allow the character if the display font supports it.

Font font = style.font;

if (!font)

font = GUI.skin.font;

if (font.HasCharacter(c) || c == '\n')

{

editor.Insert(c);

change = true;

break;

}

// On windows, keypresses also send events with keycode but no character. Eat them up here.

if (c == 0)

{

// if we have a composition string, make sure we clear the previous selection.

if (Input.compositionString.Length > 0)

{

editor.ReplaceSelection("");

change = true;

}

evt.Use();

}

// else {

// REALLY USEFUL:

// Debug.Log ("unhandled " +evt);

// evt.Use ();

// }

break;

case EventType.Repaint:

// If we have keyboard focus, draw the cursor

// TODO: check if this OpenGL view has keyboard focus

if (GUIUtility.keyboardControl != id)

{

style.Draw(position, content, id, false);

}

else

{

editor.DrawCursor(content.text);

}

break;

}

if (GUIUtility.keyboardControl == id)

GUIUtility.textFieldInput = true;

if (change)

{

changed = true;

content.text = editor.text;

if (maxLength >= 0 && content.text.Length > maxLength)

content.text = content.text.Substring(0, maxLength);

evt.Use();

}

}

public static bool Toggle(Rect position, bool value, string text)

{

return Toggle(position, value, GUIContent.Temp(text), s_Skin.toggle);

}

public static bool Toggle(Rect position, bool value, Texture image)

{

return Toggle(position, value, GUIContent.Temp(image), s_Skin.toggle);

}

public static bool Toggle(Rect position, bool value, GUIContent content)

{

return Toggle(position, value, content, s_Skin.toggle);

}

public static bool Toggle(Rect position, bool value, string text, GUIStyle style)

{

return Toggle(position, value, GUIContent.Temp(text), style);

}

public static bool Toggle(Rect position, bool value, Texture image, GUIStyle style)

{

return Toggle(position, value, GUIContent.Temp(image), style);

}

// Make an on/off toggle button.

public static bool Toggle(Rect position, bool value, GUIContent content, GUIStyle style)

{

GUIUtility.CheckOnGUI();

return DoToggle(position, GUIUtility.GetControlID(s_ToggleHash, FocusType.Passive, position), value, content, style.m_Ptr);

}

public static bool Toggle(Rect position, int id, bool value, GUIContent content, GUIStyle style)

{

GUIUtility.CheckOnGUI();

return DoToggle(position, id, value, content, style.m_Ptr);

}

public enum ToolbarButtonSize

{

Fixed,

FitToContents

};

public static int Toolbar(Rect position, int selected, string[] texts)

{

return Toolbar(position, selected, GUIContent.Temp(texts), s_Skin.button);

}

public static int Toolbar(Rect position, int selected, Texture[] images)

{

return Toolbar(position, selected, GUIContent.Temp(images), s_Skin.button);

}

public static int Toolbar(Rect position, int selected, GUIContent[] contents)

{

return Toolbar(position, selected, contents, s_Skin.button);

}

public static int Toolbar(Rect position, int selected, string[] texts, GUIStyle style)

{

return Toolbar(position, selected, GUIContent.Temp(texts), style);

}

public static int Toolbar(Rect position, int selected, Texture[] images, GUIStyle style)

{

return Toolbar(position, selected, GUIContent.Temp(images), style);

}

public static int Toolbar(Rect position, int selected, GUIContent[] contents, GUIStyle style)

{

return Toolbar(position, selected, contents, null, style, ToolbarButtonSize.Fixed);

}

// Make a toolbar

public static int Toolbar(Rect position, int selected, GUIContent[] contents, GUIStyle style, ToolbarButtonSize buttonSize)

{

return Toolbar(position, selected, contents, null, style, buttonSize);

}

internal static int Toolbar(Rect position, int selected, GUIContent[] contents, string[] controlNames, GUIStyle style, ToolbarButtonSize buttonSize)

{

GUIUtility.CheckOnGUI();

// Get the styles here

GUIStyle firstStyle, midStyle, lastStyle;

FindStyles(ref style, out firstStyle, out midStyle, out lastStyle, "left", "mid", "right");

return DoButtonGrid(position, selected, contents, controlNames, contents.Length, style, firstStyle, midStyle, lastStyle, buttonSize);

}

public static int SelectionGrid(Rect position, int selected, string[] texts, int xCount)

{

return SelectionGrid(position, selected, GUIContent.Temp(texts), xCount, null);

}

public static int SelectionGrid(Rect position, int selected, Texture[] images, int xCount)

{

return SelectionGrid(position, selected, GUIContent.Temp(images), xCount, null);

}

public static int SelectionGrid(Rect position, int selected, GUIContent[] content, int xCount)

{

return SelectionGrid(position, selected, content, xCount, null);

}

public static int SelectionGrid(Rect position, int selected, string[] texts, int xCount, GUIStyle style)

{

return SelectionGrid(position, selected, GUIContent.Temp(texts), xCount, style);

}

public static int SelectionGrid(Rect position, int selected, Texture[] images, int xCount, GUIStyle style)

{

return SelectionGrid(position, selected, GUIContent.Temp(images), xCount, style);

}

// Make a grid of buttons.

public static int SelectionGrid(Rect position, int selected, GUIContent[] contents, int xCount, GUIStyle style)

{

if (style == null) style = s_Skin.button;

return DoButtonGrid(position, selected, contents, null, xCount, style, style, style, style, ToolbarButtonSize.Fixed);

}

// Find many GUIStyles from style.name permutations (Helper function for toolbars).

internal static void FindStyles(ref GUIStyle style, out GUIStyle firstStyle, out GUIStyle midStyle, out GUIStyle lastStyle, string first, string mid, string last)

{

if (style == null)

style = GUI.skin.button;

string baseName = style.name;

midStyle = GUI.skin.FindStyle(baseName + mid) ?? style;

firstStyle = GUI.skin.FindStyle(baseName + first) ?? midStyle;

lastStyle = GUI.skin.FindStyle(baseName + last) ?? midStyle;

}

internal static int CalcTotalHorizSpacing(int xCount, GUIStyle style, GUIStyle firstStyle, GUIStyle midStyle, GUIStyle lastStyle)

{

if (xCount < 2)

return 0;

if (xCount == 2)

return Mathf.Max(firstStyle.margin.right, lastStyle.margin.left);

int internalSpace = Mathf.Max(midStyle.margin.left, midStyle.margin.right);

return Mathf.Max(firstStyle.margin.right, midStyle.margin.left) + Mathf.Max(midStyle.margin.right, lastStyle.margin.left) + internalSpace * (xCount - 3);

}

// Make a button grid

private static int DoButtonGrid(Rect position, int selected, GUIContent[] contents, string[] controlNames, int xCount, GUIStyle style, GUIStyle firstStyle, GUIStyle midStyle, GUIStyle lastStyle, ToolbarButtonSize buttonSize)

{

GUIUtility.CheckOnGUI();

int count = contents.Length;

if (count == 0)

return selected;

if (xCount <= 0)

{

Debug.LogWarning("You are trying to create a SelectionGrid with zero or less elements to be displayed in the horizontal direction. Set xCount to a positive value.");

return selected;

}

// Figure out how large each element should be

int rows = count / xCount;

if (count % xCount != 0)

rows++;

float totalHorizSpacing = CalcTotalHorizSpacing(xCount, style, firstStyle, midStyle, lastStyle);

float totalVerticalSpacing = Mathf.Max(style.margin.top, style.margin.bottom) * (rows - 1);

float elemWidth = (position.width - totalHorizSpacing) / xCount;

float elemHeight = (position.height - totalVerticalSpacing) / rows;

if (style.fixedWidth != 0)

elemWidth = style.fixedWidth;

if (style.fixedHeight != 0)

elemHeight = style.fixedHeight;

Rect[] buttonRects = CalcMouseRects(position, contents, xCount, elemWidth, elemHeight, style, firstStyle, midStyle, lastStyle, false, buttonSize);

GUIStyle selectedButtonStyle = null;

int selectedButtonID = 0;

for (int buttonIndex = 0; buttonIndex < count; ++buttonIndex)

{

var buttonRect = buttonRects[buttonIndex];

var content = contents[buttonIndex];

if (controlNames != null)

GUI.SetNextControlName(controlNames[buttonIndex]);

var id = GUIUtility.GetControlID(s_ButtonGridHash, FocusType.Passive, buttonRect);

if (buttonIndex == selected)

selectedButtonID = id;

switch (Event.current.GetTypeForControl(id))

{

case EventType.MouseDown:

if (buttonRect.Contains(Event.current.mousePosition))

{

GUIUtility.hotControl = id;

Event.current.Use();

}

break;

case EventType.MouseDrag:

if (GUIUtility.hotControl == id)

Event.current.Use();

break;

case EventType.MouseUp:

if (GUIUtility.hotControl == id)

{

GUIUtility.hotControl = 0;

Event.current.Use();

GUI.changed = true;

return buttonIndex;

}

break;

case EventType.Repaint:

var buttonStyle = count == 1 ? style : (buttonIndex == 0 ? firstStyle : (buttonIndex == count - 1 ? lastStyle : midStyle));

var isMouseOver = buttonRect.Contains(Event.current.mousePosition);

var isHotControl = GUIUtility.hotControl == id;

var isSelected = selected == buttonIndex;

if (!isSelected)

buttonStyle.Draw(buttonRect, content, isMouseOver && (enabled || isHotControl) && (isHotControl || GUIUtility.hotControl == 0), enabled && isHotControl, false, false);

else

selectedButtonStyle = buttonStyle;

if (isMouseOver)

{

GUIUtility.mouseUsed = true;

if (!string.IsNullOrEmpty(content.tooltip))

GUIStyle.SetMouseTooltip(content.tooltip, buttonRect);

}

break;

}

}

// draw selected button at the end so it overflows nicer

if (selectedButtonStyle != null)

{

var buttonRect = buttonRects[selected];

var content = contents[selected];