bullet3/examples/ThirdPartyLibs/Gwen/Controls/ComboBox.cpp

208 lines
3.8 KiB
C++

/*
GWEN
Copyright (c) 2010 Facepunch Studios
See license in Gwen.h
*/
#include "Gwen/Controls/ComboBox.h"
#include "Gwen/Controls/Menu.h"
using namespace Gwen;
using namespace Gwen::Controls;
using namespace Gwen::ControlsInternal;
class GWEN_EXPORT DownArrow : public Controls::Base
{
public:
GWEN_CONTROL_INLINE( DownArrow, Controls::Base )
{
SetMouseInputEnabled( true );
SetSize( 15, 15 );
}
void Render( Skin::Base* skin )
{
skin->DrawArrowDown(this->m_Bounds);
}
void SetComboBox( ComboBox* p ){ m_ComboBox = p; }
protected:
ComboBox* m_ComboBox;
};
GWEN_CONTROL_CONSTRUCTOR( ComboBox )
{
SetSize( 100, 20 );
SetMouseInputEnabled( true );
m_Menu = new Menu( this );
m_Menu->SetHidden( true );
m_Menu->SetDisableIconMargin( true );
m_Menu->SetTabable( false );
ComboBoxButton* m_OpenButton = new ComboBoxButton( this );
m_OpenButton->onDown.Add( this, &ComboBox::OpenButtonPressed );
m_OpenButton->Dock( Pos::Right );
m_OpenButton->SetMargin( Margin( 2, 2, 2, 2 ) );
m_OpenButton->SetWidth( 16 );
m_OpenButton->SetTabable( false );
m_SelectedItem = NULL;
SetAlignment( Gwen::Pos::Left | Gwen::Pos::CenterV );
SetText( L"" );
SetMargin( Margin( 3, 0, 0, 0 ) );
SetTabable( true );
}
MenuItem* ComboBox::AddItem( const UnicodeString& strLabel, const String& strName, Gwen::Event::Handler* pHandler, Gwen::Event::Handler::Function fn )
{
MenuItem* pItem = m_Menu->AddItem( strLabel, L"", pHandler, fn );
pItem->SetName( strName );
pItem->onMenuItemSelected.Add( this, &ComboBox::OnItemSelected );
//Default
if ( m_SelectedItem == NULL )
OnItemSelected( pItem );
return pItem;
}
void ComboBox::Render( Skin::Base* skin )
{
skin->DrawComboBox( this );
}
void ComboBox::OpenButtonPressed( Controls::Base* /*pControl*/ )
{
OnPress();
}
void ComboBox::OnPress()
{
bool bWasMenuHidden = m_Menu->Hidden();
GetCanvas()->CloseMenus();
if ( bWasMenuHidden )
{
OpenList();
}
else
{
m_Menu->SetHidden( true );
}
}
void ComboBox::ClearItems()
{
if ( m_Menu )
{
m_Menu->ClearItems();
}
}
void ComboBox::OnItemSelected( Controls::Base* pControl )
{
//Convert selected to a menu item
MenuItem* pItem = pControl->DynamicCastMenuItem();
if ( !pItem ) return;
m_SelectedItem = pItem;
SetText( m_SelectedItem->GetText() );
m_Menu->SetHidden( true );
onSelection.Call( this );
Focus();
Invalidate();
}
void ComboBox::OnLostKeyboardFocus()
{
SetTextColor( Color( 0, 0, 0, 255 ) );
}
void ComboBox::OnKeyboardFocus()
{
//Until we add the blue highlighting again
SetTextColor( Color( 0, 0, 0, 255 ) );
//m_SelectedText->SetTextColor( Color( 255, 255, 255, 255 ) );
}
Gwen::Controls::Label* ComboBox::GetSelectedItem()
{
return m_SelectedItem;
}
bool ComboBox::IsMenuOpen()
{
return m_Menu && !m_Menu->Hidden();
}
void ComboBox::OpenList()
{
if ( !m_Menu ) return;
m_Menu->SetParent( GetCanvas() );
m_Menu->SetHidden( false );
m_Menu->BringToFront();
Gwen::Point p = LocalPosToCanvas( Gwen::Point( 0, 0 ) );
m_Menu->SetBounds( Gwen::Rect ( p.x, p.y + Height(), Width(), m_Menu->Height()) );
}
void ComboBox::CloseList()
{
}
bool ComboBox::OnKeyUp( bool bDown )
{
if ( bDown )
{
Base::List & children = m_Menu->GetChildren();
Base::List::reverse_iterator it = std::find( children.rbegin(), children.rend(), m_SelectedItem );
if ( it != children.rend() && ( ++it != children.rend() ) )
{
Base* pUpElement = *it;
OnItemSelected( pUpElement );
}
}
return true;
}
bool ComboBox::OnKeyDown( bool bDown )
{
if ( bDown )
{
Base::List & children = m_Menu->GetChildren();
Base::List::iterator it = std::find( children.begin(), children.end(), m_SelectedItem );
if ( it != children.end() && ( ++it != children.end() ) )
{
Base* pDownElement = *it;
OnItemSelected( pDownElement );
}
}
return true;
}
void ComboBox::RenderFocus( Gwen::Skin::Base* /*skin*/ )
{
}