TreeItem.h

/***********************************************************************
    filename:  CEGUITreeItem.h
    created:   5-13-07
    author:    Jonathan Welch (Based on Code by David Durant)
 *************************************************************************/
/***************************************************************************
 *   Copyright (C) 2004 - 2006 Paul D Turner & The CEGUI Development Team
 *
 *   Permission is hereby granted, free of charge, to any person obtaining
 *   a copy of this software and associated documentation files (the
 *   "Software"), to deal in the Software without restriction, including
 *   without limitation the rights to use, copy, modify, merge, publish,
 *   distribute, sublicense, and/or sell copies of the Software, and to
 *   permit persons to whom the Software is furnished to do so, subject to
 *   the following conditions:
 *
 *   The above copyright notice and this permission notice shall be
 *   included in all copies or substantial portions of the Software.
 *
 *   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 *   EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 *   MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 *   IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 *   OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 *   ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 *   OTHER DEALINGS IN THE SOFTWARE.
 ***************************************************************************/
#ifndef _CEGUITreeItem_h_
#define _CEGUITreeItem_h_

#include "../Base.h"
#include "../String.h"
#include "../ColourRect.h"
#include "../BasicRenderedStringParser.h"

#if defined(_MSC_VER)
#   pragma warning(push)
#   pragma warning(disable : 4251)
#endif

// Start of CEGUI namespace section
namespace CEGUI
{
class CEGUIEXPORT TreeItem : public
    AllocatedObject<TreeItem>
{
public:
    typedef std::vector<TreeItem*
        CEGUI_VECTOR_ALLOC(TreeItem*)>  LBItemList;

    /*************************************************************************
        Constants
     *************************************************************************/
    static const Colour DefaultTextColour;
    static const Colour DefaultSelectionColour;

    /*************************************************************************
        Construction and Destruction
     *************************************************************************/
    TreeItem(const String& text, uint item_id = 0, void* item_data = 0,
             bool disabled = false, bool auto_delete = true);

    virtual ~TreeItem(void);

    /*************************************************************************
        Accessors
     *************************************************************************/
    const Font* getFont(void) const;

    ColourRect getTextColours(void) const
    { return d_textCols; }

    /*************************************************************************
        Manipulator methods
     *************************************************************************/
    void setFont(const Font* font);

    void setFont(const String& font_name);

    void setTextColours(const ColourRect& cols)
    { d_textCols = cols; d_renderedStringValid = false; }

    void setTextColours(Colour top_left_colour, Colour top_right_colour,
                        Colour bottom_left_colour, Colour bottom_right_colour);

    void setTextColours(Colour col)
    { setTextColours(col, col, col, col); }

    const String& getText() const {return d_textLogical;}

    const String& getTextVisual() const;

    const String& getTooltipText(void) const
    { return d_tooltipText; }

    uint getID(void) const
    { return d_itemID; }

    void* getUserData(void) const
    { return d_itemData; }

    bool isSelected(void) const
    { return d_selected; }

    bool isDisabled(void) const
    { return d_disabled; }

    bool isAutoDeleted(void) const
    { return d_autoDelete; }

    const Window* getOwnerWindow(void)
    { return d_owner; }

    ColourRect getSelectionColours(void) const
    { return d_selectCols; }


    const Image* getSelectionBrushImage(void) const
    { return d_selectBrush; }


    /*************************************************************************
        Manipulators
     *************************************************************************/
    void setText(const String& text);

    void setTooltipText(const String& text)
    { d_tooltipText = text; }

    void setID(uint item_id)
    { d_itemID = item_id; }

    void setUserData(void* item_data)
    { d_itemData = item_data; }

    void setSelected(bool setting)
    { d_selected = setting; }

    void setDisabled(bool setting)
    { d_disabled = setting; }

    void setAutoDeleted(bool setting)
    { d_autoDelete = setting; }

    void setOwnerWindow(const Window* owner)
    { d_owner = owner; }

    void setSelectionColours(const ColourRect& cols)
    { d_selectCols = cols; }


    void setSelectionColours(Colour top_left_colour,
                             Colour top_right_colour,
                             Colour bottom_left_colour,
                             Colour bottom_right_colour);

    void setSelectionColours(Colour col)
    { setSelectionColours(col, col, col, col); }


    void setSelectionBrushImage(const Image* image)
    { d_selectBrush = image; }


    void setSelectionBrushImage(const String& name);

    void setButtonLocation(Rectf& buttonOffset)
    { d_buttonLocation = buttonOffset; }

    Rectf& getButtonLocation(void)
    { return d_buttonLocation; }

    bool getIsOpen(void)
    { return d_isOpen; }

    void toggleIsOpen(void)
    { d_isOpen = !d_isOpen; }

    TreeItem *getTreeItemFromIndex(size_t itemIndex);

    size_t getItemCount(void) const
    { return d_listItems.size(); }

    LBItemList &getItemList(void)
    { return d_listItems; }

    void addItem(TreeItem* item);
    void removeItem(const TreeItem* item);

    void setIcon(const Image &theIcon)
    { d_iconImage = &theIcon; }

    /*************************************************************************
        Abstract portion of interface
     *************************************************************************/
    virtual Sizef getPixelSize(void) const;

    virtual void draw(GeometryBuffer& buffer, const Rectf& targetRect,
                      float alpha, const Rectf* clipper) const;

    virtual bool handleFontRenderSizeChange(const Font* const font);

    /*************************************************************************
        Operators
     *************************************************************************/
    virtual bool operator<(const TreeItem& rhs) const
    { return getText() < rhs.getText(); }

    virtual bool operator>(const TreeItem& rhs) const
    { return getText() > rhs.getText(); }

protected:
    /*************************************************************************
        Implementation methods
     *************************************************************************/
    ColourRect getModulateAlphaColourRect(const ColourRect& cols,
                                          float alpha) const;

    Colour calculateModulatedAlphaColour(Colour col, float alpha) const;

    void parseTextString() const;

    /*************************************************************************
        Implementation Data
     *************************************************************************/
    String               d_textLogical;            

    BidiVisualMapping* d_bidiVisualMapping;
    mutable bool d_bidiDataValid;
    String d_tooltipText;
    uint d_itemID;
    void* d_itemData;
    bool d_selected;
    bool d_disabled;
    bool d_autoDelete;
    Rectf d_buttonLocation;
    const Window* d_owner;
    ColourRect d_selectCols;
    const Image* d_selectBrush;
    ColourRect d_textCols;
    const Font* d_font;
    const Image* d_iconImage;
    LBItemList d_listItems;
    bool d_isOpen;
    static BasicRenderedStringParser d_stringParser;
    mutable RenderedString  d_renderedString;
    mutable bool d_renderedStringValid;
};

} // End of  CEGUI namespace section

#if defined(_MSC_VER)
#   pragma warning(pop)
#endif

#endif   // end of guard _CEGUITreeItem_h_