private float GetWindowXPosition(float requestedXPosition, float windowWidth)
{
// If the window width is smaller than the distance from cursor to the right border of the window, the
// window will not appear because the cursor is outside of the window and OnGUI will never be called.
float screenWidth = EditorGUIUtilityHelper.GetScreenWidth();
requestedXPosition -= 8f; // This will make the window appear so that foldout arrows are precisely below the cursor.
float distanceToRightBorder = screenWidth - requestedXPosition;
if (windowWidth > distanceToRightBorder)
{
requestedXPosition = screenWidth - windowWidth;
}
return(requestedXPosition);
}
/// <summary>Resizes the window to the needed size.</summary>
/// <param name="window">The window to change the size of.</param>
/// <param name="width">The width to set. If the value is -1f, the width will not be changed.</param>
/// <param name="height">The height to set. If the value is -1f, the height will not be changed.</param>
/// <exception cref="ArgumentOutOfRangeException">
/// Thrown if width or height are negative numbers and not -1f.
/// </exception>
/// <example><code>
/// public class DummyWindow : EditorWindow
/// {
/// private void OnCreate(Rect buttonRect)
/// {
/// var windowSize = new Vector2(100f, 100f);
/// ShowAsDropDown(buttonRect, windowSize);
/// }
///
/// private void OnGUI()
/// {
/// float optimalWidth = CalculateOptimalWidth();
/// float optimalHeight = Math.Min(_contentHeight, DropdownStyle.MaxWindowHeight);
/// this.Resize(optimalWidth, optimalHeight);
/// }
/// }
/// </code></example>
[PublicAPI] public static void Resize(this EditorWindow window, float width = -1f, float height = -1f)
{
EnsureTheValueIsNotNegative(nameof(width), width);
EnsureTheValueIsNotNegative(nameof(height), height);
bool changeWidth = width != -1f;
bool changeHeight = height != -1f;
Rect positionToAdjust = window.position;
if (changeWidth)
{
positionToAdjust.width = width;
}
if (changeHeight)
{
positionToAdjust.height = height;
}
window.minSize = new Vector2(changeWidth ? width : window.minSize.x, changeHeight ? height : window.minSize.y);
window.maxSize = new Vector2(changeWidth ? width : window.maxSize.x, changeHeight ? height : window.maxSize.y);
if (changeWidth)
{
float screenWidth = EditorGUIUtilityHelper.GetScreenWidth();
if (positionToAdjust.xMax >= screenWidth)
{
positionToAdjust.x -= positionToAdjust.xMax - screenWidth;
}
}
if (changeHeight)
{
// MainWindow is more reliable than Screen.currentResolution.height, especially for the multi-display setup.
float mainWinYMax = EditorGUIUtilityHelper.GetMainWindowPosition().yMax;
if (positionToAdjust.yMax >= mainWinYMax)
{
positionToAdjust.y -= positionToAdjust.yMax - mainWinYMax;
}
}
window.position = positionToAdjust;
}