daedalus/Source/SysPSP/UI/UIElement.h
2020-08-22 18:42:41 +10:00

93 lines
2.9 KiB
C++

/*
Copyright (C) 2007 StrmnNrmn
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef SYSPSP_UI_UIELEMENT_H_
#define SYSPSP_UI_UIELEMENT_H_
#include <stdlib.h>
#include <vector>
#include "Base/Types.h"
#include "SysPSP/UI/UIAlignment.h"
class CUIContext;
class c32;
//*************************************************************************************
//
//*************************************************************************************
class CUIElement
{
public:
virtual ~CUIElement();
virtual bool IsSelectable() const { return true; }
virtual void OnSelected() {} // Selected with Start/X
virtual void OnNext() {}
virtual void OnPrevious() {}
virtual u32 GetHeight( CUIContext * context ) const = 0;
virtual void Draw( CUIContext * context, s32 min_x, s32 max_x, EAlignType halign, s32 y, bool selected ) const = 0;
virtual const char * GetDescription() const = 0;
private:
};
class CUIElementBag
{
public:
CUIElementBag();
~CUIElementBag();
u32 Add( CUIElement * element ) { u32 idx = mElements.size(); mElements.push_back( element ); return idx; }
void Clear() { mElements.clear(); mSelectedIdx = 0; }
#ifdef DAEDALUS_ENABLE_ASSERTS
void SetSelected( u32 idx ) { DAEDALUS_ASSERT( idx < mElements.size(), "Invalid idx" ); mSelectedIdx = idx; }
#else
void SetSelected(u32 idx) {mSelectedIdx = idx; }
#endif
void SelectNext();
void SelectPrevious();
u32 GetNumElements() const { return mElements.size(); }
#ifdef DAEDALUS_ENABLE_ASSERTS
CUIElement * GetElement( u32 i ) const { DAEDALUS_ASSERT( i < mElements.size(), "Invalid idx" ); return mElements[ i ]; }
#else
CUIElement * GetElement( u32 i ) const { return mElements[ i ]; }
#endif
u32 GetSelectedIndex() { return mSelectedIdx; }
CUIElement * GetSelectedElement() const { if( mSelectedIdx < mElements.size() ) return mElements[ mSelectedIdx ]; return NULL; }
void Draw( CUIContext * context, s32 min_x, s32 max_x, EAlignType halign, s32 y ) const;
void DrawCentredVertically( CUIContext * context, s32 min_x, s32 min_y, s32 max_x, s32 max_y ) const;
private:
std::vector< CUIElement * > mElements;
u32 mSelectedIdx;
};
#endif // SYSPSP_UI_UIELEMENT_H_