private void CenterButton(_IButton button, float largest, float title_padding)
{
float size_x = button.GetAABB().GetSize().X;
float shift = (largest - size_x) * 0.5f;
button.Translate(new Vector2(shift, title_padding));
}
public Selector(_Position pos, String title, eStyle style, eStyle button_style, eStyle title_style,
long id, String[] texts)
{
mRenderEnabled = true;
mID = id;
mPos = pos.GetPosition();
mPosition = pos;
mTitle = title;
mStyle = style;
mButtonStyle = button_style;
mTitleStyle = title_style;
this.mSelections = new _IButton[texts.Length];
// create a default button to see how big it is vertically
// size and position border accordingly, factoring in width of largest button including title
// destroy that button
// create all the proper buttons in the right spot
// create title 'button' as disabled button
XUI xui_inst = XUI.Instance();
_IButton test = xui_inst._CreateRectangularButton(Vector2.Zero, "Test", style);
xAABB2 button_size = test.GetAABB();
float button_size_y = button_size.GetSize().Y;
xui_inst._DestroyButton(test);
const float k_border_padding_scalar = 0.5f;
float border_padding = k_border_padding_scalar * button_size_y;
const float k_spacing_scalar = 0.2f;
float spacing = k_spacing_scalar * button_size_y;
// pad out the text strings so the buttons can be wide if the text is small
int longest = GetLongestString(texts);
PadButtonTexts(texts, longest);
// create buttons
PositionAndCreateButtons(texts, mSelections, border_padding, spacing, button_size_y, button_style, 0);
// track largest
float largest_x = GetWidest(mSelections);
// create title button (non-functional) and see if it's the largest
Vector2 title_pos = mPos + new Vector2(border_padding, border_padding);
mTitleButton = xui_inst._CreateRectangularButton(title_pos, title, title_style);
mTitleButton.SetActive(false);
largest_x = Math.Max(largest_x, mTitleButton.GetAABB().GetSize().X);
// calculate aabb
const float title_padding_scalar = 4.0f;
float title_padding = border_padding * title_padding_scalar;
Vector2 title_padding_v = new Vector2(0, title_padding);
float full_width = largest_x + 2 * border_padding;
float full_height = button_size_y * (mSelections.Length) +
(mSelections.Length - 1) * spacing +
2 * border_padding +
title_padding;
mAABB.Set(mPos, mPos + new Vector2(full_width, full_height));
// translate each button to be centered, and account for title
CenterButtons(mSelections, largest_x, title_padding);
CenterButton(mTitleButton, largest_x, 0);
// if the selector has a non-trivial Position, fix it
if (mPosition.IsCentered())
{
// see where it is now, figure out where it should be, translate.
// apply to aabb for selector plus translate all the buttons
xCoord screen_dim = XRenderManager.Instance().GetScreenDim();
Vector2 span = mAABB.GetSize();
Vector2 screen_dim_vec = new Vector2(screen_dim.x, screen_dim.y);
Vector2 edge = 0.5f * (screen_dim_vec - span);
Translate(edge);
}
}