BookMenu.c

Go to the documentation of this file.

class BookMenu extends UIScriptedMenu
{
  protected TextWidget m_author;
  protected TextWidget m_title;
  protected TextWidget m_page;
  protected HtmlWidget m_content;
  protected float m_page_height;
  protected float m_content_total_height;
  protected float m_content_pos;
 
  override Widget Init()
  {
    layoutRoot = GetGame().GetWorkspace().CreateWidgets("gui/layouts/day_z_book.layout");
    Class.CastTo(m_content, layoutRoot.FindAnyWidget("HtmlWidget"));
    Class.CastTo(m_author, layoutRoot.FindAnyWidget("Author"));
    Class.CastTo(m_title, layoutRoot.FindAnyWidget("Title"));
    Class.CastTo(m_page, layoutRoot.FindAnyWidget("Page"));
 
    float width;
    m_content.GetScreenSize(width, m_page_height);
    return layoutRoot;
  }
 
  void ReadBook(InventoryItem book)
  {
    m_content.LoadFile(book.ConfigGetString("file"));
    m_author.SetText(book.ConfigGetString("author"));
    m_title.SetText(book.ConfigGetString("title"));
    m_content_total_height = m_content.GetContentHeight();
    m_content_pos = 0;
    NextPrevPage(false);
  }
 
  override bool OnClick(Widget w, int x, int y, int button)
  {
    super.OnClick(w, x, y, button);
 
    switch (w.GetUserID())
    {
    case IDC_BOOK_VIEWER_PREV:
      NextPrevPage(false);
      return true;
    case IDC_BOOK_VIEWER_NEXT:
      NextPrevPage(true);
      return true;
    case IDC_CANCEL:
      Close();
      return true;
    }
 
    return false;
  }
 
  void NextPrevPage(bool next)
  {
    if (next)
      m_content_pos = m_content_pos + m_page_height;
    else
      m_content_pos = m_content_pos - m_page_height;
 
    float maxOffset = 0;
    if (m_content_total_height > m_page_height)
      maxOffset = m_content_total_height - m_page_height;
 
    if (m_content_pos < 0)
      m_content_pos = 0;
 
    if (m_content_pos > maxOffset)
      m_content_pos = maxOffset;
 
    m_content.SetContentOffset(m_content_pos, true);
 
    float pagesTotal = Math.Ceil(m_content_total_height / m_page_height);
    float currPage = Math.Round(m_content_pos / m_page_height) + 1;
 
    m_page.SetText(currPage.ToString() + " / " + pagesTotal.ToString());
  }
}