Game Level Design/GLDesign.bin/Software/UnrealEngine2Runtime/UE2Runtime-22262001_Demo.exe/GUI/Classes/GUIList.uc

Text File | 2003-06-30 | 5KB | 288 lines

// ====================================================================
//  Class:  GUI.GUIList
//
//  The GUIList is a basic list component.
//
//  Written by Joe Wilcox
//  (c) 2002, Epic Games, Inc.  All Rights Reserved
// ====================================================================

class GUIList extends GUIVertList
        Native;

#exec OBJ LOAD FILE=GUIContent.utx

cpptext
{
    void DrawItem(UCanvas* Canvas, INT Item, FLOAT X, FLOAT Y, FLOAT W, FLOAT H);
}

var        eTextAlign            TextAlign;            // How is text Aligned in the control

var        array<GUIListElem>    Elements;

native final function SortList();

// Used by SortList.
delegate int CompareItem(GUIListElem ElemA, GUIListElem ElemB);

// Accessor function for the items.

function string SelectedText()
{
    if ( (Index >=0) && (Index <Elements.Length) )
        return Elements[Index].Item;
    else
        return "";
}

function Add(string NewItem, optional Object obj, optional string Str)
{
    Elements.Length = Elements.Length+1;

    Elements[Elements.Length-1].Item=NewItem;
    Elements[Elements.Length-1].ExtraData=obj;
    Elements[Elements.Length-1].ExtraStrData=Str;

    ItemCount=Elements.Length;

    if (Elements.Length == 1)
        SetIndex(0);
    else
        OnChange(self);

    MyScrollBar.AlignThumb();
}

function Replace(int index, string NewItem, optional Object obj, optional string Str)
{
    if ( (Index<0) || (Index>=Elements.Length) )
        Add(NewItem,Obj,Str);
    else
    {
        Elements[Index].Item = NewItem;
        Elements[Index].ExtraData = obj;
        Elements[Index].ExtraStrData = Str;
    }
}

function Insert(int Index, string NewItem, optional Object obj, optional string Str)
{
    if ( (Index<0) || (Index>=Elements.Length) )
        Add(NewItem,Obj,Str);
    else
    {
        Elements.Insert(index,1);
        Elements[Index].Item=NewItem;
        Elements[Index].ExtraData=obj;
        Elements[Index].ExtraStrData=Str;

        ItemCount=Elements.Length;

        OnChange(self);
        MyScrollBar.AlignThumb();
    }
}

event Swap(int IndexA, int IndexB)
{
    local GUI.GUIListElem elem;

    if ( (IndexA<0) || (IndexA>=Elements.Length) || (IndexB<0) || (IndexB>=Elements.Length) )
        return;

    elem = Elements[IndexA];
    Elements[IndexA] = Elements[IndexB];
    Elements[IndexB] = elem;
}

function string GetItemAtIndex(int i)
{
    if ((i<0) || (i>Elements.Length))
        return "";

    return Elements[i].Item;
}

function SetItemAtIndex(int i, string NewItem)
{
    if ((i<0) || (i>Elements.Length))
        return;

    Elements[i].Item = NewItem;
}

function object GetObjectAtIndex(int i)
{
    if ((i<0) || (i>Elements.Length))
        return None;

    return Elements[i].ExtraData;
}

function string GetExtraAtIndex(int i)
{
    if ((i<0) || (i>Elements.Length))
        return "";

    return Elements[i].ExtraStrData;
}

function SetExtraAtIndex(int i, string NewExtra)
{
    if ((i<0) || (i>Elements.Length))
        return;

    Elements[i].ExtraStrData = NewExtra;
}

function GetAtIndex(int i, out string ItemStr, out object ExtraObj, out string ExtraStr)
{
    if ((i<0) || (i>Elements.Length))
        return;

    ItemStr = Elements[i].Item;
    ExtraObj = Elements[i].ExtraData;
    ExtraStr = Elements[i].ExtraStrData;
}

function LoadFrom(GUIList Source, optional bool bClearFirst)
{
    local string t1,t2;
    local object t;
    local int i;

    if (bClearfirst)
        Clear();

    for (i=0;i<Source.Elements.Length;i++)
    {
        Source.GetAtIndex(i,t1,t,t2);
        Add(t1,t,t2);
    }
}

function Remove(int i, optional int Count)
{
    if (Count==0)
        Count=1;

    Elements.Remove(i, Count);

    ItemCount = Elements.Length;

    SetIndex(-1);
    MyScrollBar.AlignThumb();
}

function RemoveItem(string Item)
{
    local int i;

    // Work through array. If we find it, remove it (will reduce Elements.Length).
    // If we don't, move on to next one.
    i=0;
    while(i<Elements.Length)
    {
        if(Item ~= Elements[i].Item)
            Elements.Remove(i, 1);
        else
            i++;
    }

    ItemCount = Elements.Length;

    SetIndex(-1);
    MyScrollBar.AlignThumb();
}

function Clear()
{
    Elements.Remove(0,Elements.Length);

    Super.Clear();
    OnChange(self);
}

function string Get()
{
    if ( (Index<0) || (Index>=ItemCount) )
        return "";
    else
        return Elements[Index].Item;
}

function object GetObject()
{
    if ( (Index<0) || (Index>=ItemCount) )
        return none;
    else
        return Elements[Index].ExtraData;
}

function string GetExtra()
{
    if ( (Index<0) || (Index>=ItemCount) )
        return "";
    else
        return Elements[Index].ExtraStrData;
}

function string find(string Text, optional bool bExact)
{
    local int i;
    for (i=0;i<ItemCount;i++)
    {
        if (bExact)
        {
            if (Text == Elements[i].Item)
            {
                SetIndex(i);
                return  Elements[i].Item;
            }
        }
        else
        {
            if (Text ~=  Elements[i].Item)
            {
                SetIndex(i);
                return  Elements[i].Item;
            }
        }
    }
    return "";
}

// find an element by the 'extra' string
// only sets the index if it finds the string
// returns the string of the found item
function string FindExtra (string ExtraText, optional bool bExact )
{
    local int i;
    for (i=0;i<ItemCount;i++)
    {
        if (bExact)
        {
            if (ExtraText == Elements[i].ExtraStrData)
            {
                SetIndex(i);
                return Elements[i].Item;
            }
        }
        else
        {
            if (ExtraText ~=  Elements[i].ExtraStrData)
            {
                SetIndex(i);
                return Elements[i].Item;
            }
        }
    }
    return "";
}

defaultproperties
{
    TextAlign=TXTA_Center
}