void Widget::HandleEvent( const sf::Event& event ) {
if( !IsGloballyVisible() ) {
return;
}
// Ignore the event if widget is insensitive
if ( GetState() == State::INSENSITIVE ) {
return;
}
// Ignore the event if another widget is active.
if( !IsActiveWidget() && !IsActiveWidget( PtrConst() ) ) {
return;
}
// Ignore the event if another widget is modal.
if( HasModal() && !IsModal() ) {
return;
}
// Set widget active in context.
Context::Get().SetActiveWidget( shared_from_this() );
auto parent = m_parent.lock();
auto emit_leave = false;
auto emit_enter = false;
auto emit_move = false;
auto emit_left_click = false;
auto emit_right_click = false;
try {
switch( event.type ) {
case sf::Event::MouseLeft:
if( IsMouseInWidget() ) {
SetMouseInWidget( false );
HandleMouseLeave( std::numeric_limits<int>::min(), std::numeric_limits<int>::min() );
emit_leave = true;
}
HandleMouseMoveEvent( std::numeric_limits<int>::min(), std::numeric_limits<int>::min() );
SetMouseButtonDown();
HandleMouseButtonEvent( sf::Mouse::Left, false, std::numeric_limits<int>::min(), std::numeric_limits<int>::min() );
HandleMouseButtonEvent( sf::Mouse::Right, false, std::numeric_limits<int>::min(), std::numeric_limits<int>::min() );
if( emit_leave ) {
GetSignals().Emit( OnMouseLeave );
}
break;
case sf::Event::MouseMoved:
// Check if pointer inside of widget's allocation.
if( GetAllocation().contains( static_cast<float>( event.mouseMove.x ), static_cast<float>( event.mouseMove.y ) ) ) {
// Check for enter event.
if( !IsMouseInWidget() ) {
SetMouseInWidget( true );
emit_enter = true;
HandleMouseEnter( event.mouseMove.x, event.mouseMove.y );
}
emit_move = true;
}
else if( IsMouseInWidget() ) { // Check for leave event.
SetMouseInWidget( false );
emit_leave = true;
HandleMouseLeave( event.mouseMove.x, event.mouseMove.y );
}
HandleMouseMoveEvent( event.mouseMove.x, event.mouseMove.y );
if( emit_move ) {
if( emit_enter ) {
GetSignals().Emit( OnMouseEnter );
}
GetSignals().Emit( OnMouseMove );
}
else if( emit_leave ) {
GetSignals().Emit( OnMouseLeave );
}
break;
case sf::Event::MouseButtonPressed:
if( !IsMouseButtonDown() && IsMouseInWidget() ) {
SetMouseButtonDown( event.mouseButton.button );
}
HandleMouseButtonEvent( event.mouseButton.button, true, event.mouseButton.x, event.mouseButton.y );
if( IsMouseInWidget() ) {
if( event.mouseButton.button == sf::Mouse::Left ) {
GetSignals().Emit( OnMouseLeftPress );
}
else if( event.mouseButton.button == sf::Mouse::Right ) {
GetSignals().Emit( OnMouseRightPress );
}
}
break;
case sf::Event::MouseButtonReleased:
// Only process as a click when mouse button has been pressed inside the widget before.
if( IsMouseButtonDown( event.mouseButton.button ) ) {
SetMouseButtonDown();
// When released inside the widget, the event can be considered a click.
if( IsMouseInWidget() ) {
HandleMouseClick( event.mouseButton.button, event.mouseButton.x, event.mouseButton.y );
if( event.mouseButton.button == sf::Mouse::Left ) {
emit_left_click = true;
}
else if( event.mouseButton.button == sf::Mouse::Right ) {
emit_right_click = true;
}
}
}
HandleMouseButtonEvent( event.mouseButton.button, false, event.mouseButton.x, event.mouseButton.y );
if( emit_left_click ) {
GetSignals().Emit( OnLeftClick );
}
else if( emit_right_click ) {
GetSignals().Emit( OnRightClick );
}
if( IsMouseInWidget() ) {
if( event.mouseButton.button == sf::Mouse::Left ) {
GetSignals().Emit( OnMouseLeftRelease );
}
else if( event.mouseButton.button == sf::Mouse::Right ) {
GetSignals().Emit( OnMouseRightRelease );
}
}
break;
case sf::Event::KeyPressed:
if( HasFocus() ) {
// TODO: Delegate event too when widget's not active?
HandleKeyEvent( event.key.code, true );
GetSignals().Emit( OnKeyPress );
}
break;
case sf::Event::KeyReleased:
if( HasFocus() ) {
// TODO: Delegate event too when widget's not active?
HandleKeyEvent( event.key.code, false );
GetSignals().Emit( OnKeyRelease );
}
break;
case sf::Event::TextEntered:
if( HasFocus() ) {
// TODO: Delegate event too when widget's not active?
HandleTextEvent( event.text.unicode );
GetSignals().Emit( OnText );
}
break;
default:
break;
}
}
catch( ... ) {
SetState( State::NORMAL );
throw;
}
}
bool Widget::IsActiveWidget() const {
return IsActiveWidget( shared_from_this() );
}
void Widget::HandleEvent( const sf::Event& event ) {
if( !IsGloballyVisible() ) {
return;
}
// Ignore the event if widget is insensitive
if ( GetState() == INSENSITIVE ) {
return;
}
// Ignore the event if another widget is active.
if( !IsActiveWidget() && !IsActiveWidget( PtrConst() ) ) {
return;
}
// Ignore the event if another widget is modal.
if( HasModal() && !IsModal() ) {
return;
}
// Set widget active in context.
Context::Get().SetActiveWidget( shared_from_this() );
Container::Ptr parent( m_parent.lock() );
switch( event.type ) {
case sf::Event::MouseMoved:
// Check if pointer inside of widget's allocation.
if( GetAllocation().contains( static_cast<float>( event.mouseMove.x ), static_cast<float>( event.mouseMove.y ) ) ) {
// Check for enter event.
if( !IsMouseInWidget() ) {
// Flip the mouse_in bit.
m_bitfield ^= static_cast<unsigned char>( 0x10 );
GetSignals().Emit( OnMouseEnter );
HandleMouseEnter( event.mouseMove.x, event.mouseMove.y );
}
GetSignals().Emit( OnMouseMove );
}
else if( IsMouseInWidget() ) { // Check for leave event.
// Flip the mouse_in bit.
m_bitfield ^= static_cast<unsigned char>( 0x10 );
GetSignals().Emit( OnMouseLeave );
HandleMouseLeave( event.mouseMove.x, event.mouseMove.y );
}
HandleMouseMoveEvent( event.mouseMove.x, event.mouseMove.y );
break;
case sf::Event::MouseButtonPressed:
if( ( ( m_bitfield & static_cast<unsigned char>( 0xe0 ) ) == static_cast<unsigned char>( 0xe0 ) ) && IsMouseInWidget() ) {
// Clear the mouse_button_down bits to 0s.
m_bitfield &= static_cast<unsigned char>( 0x1f );
// Set the mouse_button_down bits.
m_bitfield |= static_cast<unsigned char>( event.mouseButton.button << 5 );
}
HandleMouseButtonEvent( event.mouseButton.button, true, event.mouseButton.x, event.mouseButton.y );
if( IsMouseInWidget() ) {
if( event.mouseButton.button == sf::Mouse::Left ) {
GetSignals().Emit( OnMouseLeftPress );
}
else if( event.mouseButton.button == sf::Mouse::Right ) {
GetSignals().Emit( OnMouseRightPress );
}
}
break;
case sf::Event::MouseButtonReleased:
// Only process as a click when mouse button has been pressed inside the widget before.
if( ( ( m_bitfield & 0xe0 ) >> 5 ) == event.mouseButton.button ) {
// Set the mouse_button_down bits to 111 (none).
m_bitfield |= static_cast<unsigned char>( 0xe0 );
// When released inside the widget, the event can be considered a click.
if( IsMouseInWidget() ) {
HandleMouseClick( event.mouseButton.button, event.mouseButton.x, event.mouseButton.y );
if( event.mouseButton.button == sf::Mouse::Left ) {
GetSignals().Emit( OnLeftClick );
}
else if( event.mouseButton.button == sf::Mouse::Right ) {
GetSignals().Emit( OnRightClick );
}
}
}
HandleMouseButtonEvent( event.mouseButton.button, false, event.mouseButton.x, event.mouseButton.y );
if( IsMouseInWidget() ) {
if( event.mouseButton.button == sf::Mouse::Left ) {
GetSignals().Emit( OnMouseLeftRelease );
}
else if( event.mouseButton.button == sf::Mouse::Right ) {
GetSignals().Emit( OnMouseRightRelease );
}
}
break;
case sf::Event::KeyPressed:
if( HasFocus() ) {
// TODO: Delegate event too when widget's not active?
HandleKeyEvent( event.key.code, true );
GetSignals().Emit( OnKeyPress );
}
break;
case sf::Event::KeyReleased:
if( HasFocus() ) {
// TODO: Delegate event too when widget's not active?
HandleKeyEvent( event.key.code, false );
GetSignals().Emit( OnKeyRelease );
}
break;
case sf::Event::TextEntered:
if( HasFocus() ) {
// TODO: Delegate event too when widget's not active?
HandleTextEvent( event.text.unicode );
GetSignals().Emit( OnText );
}
break;
default:
break;
}
}
