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// Copyright (C) 2002-2012 Nikolaus Gebhardt
// This file is part of the "Irrlicht Engine".
// For conditions of distribution and use, see copyright notice in irrlicht.h
#ifndef __C_GUI_COMBO_BOX_H_INCLUDED__
#define __C_GUI_COMBO_BOX_H_INCLUDED__
#include "IrrCompileConfig.h"
#ifdef _IRR_COMPILE_WITH_GUI_
#include "IGUIComboBox.h"
#include "IGUIStaticText.h"
#include "irrString.h"
#include "irrArray.h"
namespace irr
{
namespace gui
{
class IGUIButton;
class IGUIListBox;
//! Single line edit box for editing simple text.
class CGUIComboBox : public IGUIComboBox
{
public:
//! constructor
CGUIComboBox(IGUIEnvironment* environment, IGUIElement* parent,
s32 id, core::rect<s32> rectangle);
//! Returns amount of items in box
virtual u32 getItemCount() const;
//! returns string of an item. the idx may be a value from 0 to itemCount-1
virtual const wchar_t* getItem(u32 idx) const;
//! Returns item data of an item. the idx may be a value from 0 to itemCount-1
virtual u32 getItemData(u32 idx) const;
//! Returns index based on item data
virtual s32 getIndexForItemData( u32 data ) const;
//! adds an item and returns the index of it
virtual u32 addItem(const wchar_t* text, u32 data);
//! Removes an item from the combo box.
virtual void removeItem(u32 id);
//! deletes all items in the combo box
virtual void clear();
//! returns the text of the currently selected item
virtual const wchar_t* getText() const;
//! returns id of selected item. returns -1 if no item is selected.
virtual s32 getSelected() const;
//! sets the selected item. Set this to -1 if no item should be selected
virtual void setSelected(s32 idx);
//! sets the text alignment of the text part
virtual void setTextAlignment(EGUI_ALIGNMENT horizontal, EGUI_ALIGNMENT vertical);
//! Set the maximal number of rows for the selection listbox
virtual void setMaxSelectionRows(u32 max);
//! Get the maximimal number of rows for the selection listbox
virtual u32 getMaxSelectionRows() const;
//! called if an event happened.
virtual bool OnEvent(const SEvent& event);
//! draws the element and its children
virtual void draw();
//! Writes attributes of the element.
virtual void serializeAttributes(io::IAttributes* out, io::SAttributeReadWriteOptions* options) const;
//! Reads attributes of the element
virtual void deserializeAttributes(io::IAttributes* in, io::SAttributeReadWriteOptions* options);
private:
void openCloseMenu();
void sendSelectionChangedEvent();
IGUIButton* ListButton;
IGUIStaticText* SelectedText;
IGUIListBox* ListBox;
IGUIElement *LastFocus;
struct SComboData
{
SComboData ( const wchar_t * text, u32 data )
: Name (text), Data ( data ) {}
core::stringw Name;
u32 Data;
};
core::array< SComboData > Items;
s32 Selected;
EGUI_ALIGNMENT HAlign, VAlign;
u32 MaxSelectionRows;
bool HasFocus;
};
} // end namespace gui
} // end namespace irr
#endif // _IRR_COMPILE_WITH_GUI_
#endif // __C_GUI_COMBO_BOX_H_INCLUDED__
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