bullet3/btgui/Gwen/Controls/Canvas.cpp

233 lines
4.7 KiB
C++

/*
GWEN
Copyright (c) 2010 Facepunch Studios
See license in Gwen.h
*/
#include "Gwen/Gwen.h"
#include "Gwen/Controls/Canvas.h"
#include "Gwen/Skin.h"
#include "Gwen/Controls/Menu.h"
#include "Gwen/DragAndDrop.h"
#include "Gwen/ToolTip.h"
#ifndef GWEN_NO_ANIMATION
#include "Gwen/Anim.h"
#endif
using namespace Gwen::Controls;
Canvas::Canvas( Gwen::Skin::Base* pSkin ) : BaseClass( NULL ), m_bAnyDelete( false ),m_fScale(-1)
{
SetBounds( 0, 0, 10000, 10000 );
SetSkin( pSkin );
SetScale( 1.0f );
SetBackgroundColor( Color( 255, 255, 255, 255 ) );
SetDrawBackground( false );
}
void Canvas::RenderCanvas()
{
DoThink();
Gwen::Renderer::Base* render = m_Skin->GetRender();
render->Begin();
RecurseLayout( m_Skin );
render->SetClipRegion( GetBounds() );
render->SetRenderOffset( Gwen::Point( 0, 0 ) );
render->SetScale( Scale() );
if ( m_bDrawBackground )
{
render->SetDrawColor( m_BackgroundColor );
render->DrawFilledRect( GetRenderBounds() );
}
DoRender( m_Skin );
DragAndDrop::RenderOverlay( this, m_Skin );
ToolTip::RenderToolTip( m_Skin );
render->EndClip();
render->End();
ProcessDelayedDeletes();
}
void Canvas::Render( Gwen::Skin::Base* /*pRender*/ )
{
m_bNeedsRedraw = false;
}
void Canvas::OnBoundsChanged( Gwen::Rect oldBounds )
{
BaseClass::OnBoundsChanged( oldBounds );
InvalidateChildren( true );
}
void Canvas::DoThink()
{
if ( Hidden() ) return;
#ifndef GWEN_NO_ANIMATION
Gwen::Anim::Think();
#endif
// Reset tabbing
{
NextTab = NULL;
FirstTab = NULL;
}
ProcessDelayedDeletes();
// Check has focus etc..
RecurseLayout( m_Skin );
// If we didn't have a next tab, cycle to the start.
if ( NextTab == NULL )
NextTab = FirstTab;
Gwen::Input::OnCanvasThink( this );
}
void Canvas::SetScale( float f )
{
if ( m_fScale == f ) return;
m_fScale = f;
if ( m_Skin && m_Skin->GetRender() )
m_Skin->GetRender()->SetScale( m_fScale );
OnScaleChanged();
Redraw();
}
void Canvas::AddDelayedDelete( Gwen::Controls::Base* pControl )
{
if ( !m_bAnyDelete || m_DeleteSet.find( pControl ) == m_DeleteSet.end() )
{
m_bAnyDelete = true;
m_DeleteSet.insert( pControl );
m_DeleteList.push_back( pControl );
}
}
void Canvas::PreDelete( Controls::Base * pControl )
{
if ( m_bAnyDelete )
{
std::set< Controls::Base * >::iterator itFind;
if ( ( itFind = m_DeleteSet.find( pControl ) ) != m_DeleteSet.end() )
{
m_DeleteList.remove( pControl );
m_DeleteSet.erase( pControl );
m_bAnyDelete = !m_DeleteSet.empty();
}
}
}
void Canvas::ProcessDelayedDeletes()
{
while( m_bAnyDelete )
{
m_bAnyDelete = false;
Controls::Base::List deleteList = m_DeleteList;
m_DeleteList.clear();
m_DeleteSet.clear();
for ( Gwen::Controls::Base::List::iterator it = deleteList.begin(); it != deleteList.end(); ++it )
{
Gwen::Controls::Base* pControl = *it;
delete pControl;
}
}
}
void Canvas::Release()
{
Base::List::iterator iter = Children.begin();
while ( iter != Children.end() )
{
Base* pChild = *iter;
iter = Children.erase( iter );
delete pChild;
}
delete this;
}
bool Canvas::InputMouseMoved( int x, int y, int deltaX, int deltaY )
{
if ( Hidden() ) return false;
// Todo: Handle scaling here..
//float fScale = 1.0f / Scale();
Gwen::Input::OnMouseMoved( this, x, y, deltaX, deltaY );
if ( !Gwen::HoveredControl ) return false;
if ( Gwen::HoveredControl == this ) return false;
if ( Gwen::HoveredControl->GetCanvas() != this ) return false;
Gwen::HoveredControl->OnMouseMoved( x, y, deltaX, deltaY );
Gwen::HoveredControl->UpdateCursor();
DragAndDrop::OnMouseMoved( Gwen::HoveredControl, x, y );
return true;
}
bool Canvas::InputMouseButton( int iButton, bool bDown )
{
if ( Hidden() ) return false;
return Gwen::Input::OnMouseClicked( this, iButton, bDown );
}
bool Canvas::InputKey( int iKey, bool bDown )
{
if ( Hidden() ) return false;
if ( iKey <= Gwen::Key::Invalid ) return false;
if ( iKey >= Gwen::Key::Count ) return false;
return Gwen::Input::OnKeyEvent( this, iKey, bDown );
}
bool Canvas::InputCharacter( Gwen::UnicodeChar chr )
{
if ( Hidden() ) return false;
if ( !iswprint( chr ) ) return false;
//Handle Accelerators
if ( Gwen::Input::HandleAccelerator( this, chr ) )
return true;
//Handle characters
if ( !Gwen::KeyboardFocus ) return false;
if ( Gwen::KeyboardFocus->GetCanvas() != this ) return false;
if ( !Gwen::KeyboardFocus->Visible() ) return false;
if ( Gwen::Input::IsControlDown() ) return false;
return KeyboardFocus->OnChar( chr );
}
bool Canvas::InputMouseWheel( int val )
{
if ( Hidden() ) return false;
if ( !Gwen::HoveredControl ) return false;
if ( Gwen::HoveredControl == this ) return false;
if ( Gwen::HoveredControl->GetCanvas() != this ) return false;
return Gwen::HoveredControl->OnMouseWheeled( val );
}