gesturetool.cpp

hl2 source code. Do not use it illegal.

		drawHelper.DrawColoredText( "Arial", 9, FW_NORMAL, RGB( 0, 0, 0 ), timeRect, sz );

		timeRect = rcText;

		Q_snprintf( sz, sizeof( sz ), "%.2f", righttime + ev->GetStartTime() );

		int textW = drawHelper.CalcTextWidth( "Arial", 9, FW_NORMAL, sz );

		timeRect.right = w2() - 10;
		timeRect.left = timeRect.right - textW;

		drawHelper.DrawColoredText( "Arial", 9, FW_NORMAL, RGB( 0, 0, 0 ), timeRect, sz );
	}

	RECT rcHandle;
	GetScrubHandleRect( rcHandle, m_flScrub, true );
	DrawScrubHandle( drawHelper, rcHandle, m_flScrub, false );

	DrawEventEnd( drawHelper );

	if ( ev && ev->GetDuration() > 0.0f )
	{
		float scrub = ev->GetShiftedTimeFromReferenceTime( m_flScrub / ev->GetDuration() ) * ev->GetDuration();
		GetScrubHandleReferenceRect( rcHandle, scrub, true );
		DrawScrubHandle( drawHelper, rcHandle, scrub, true );
	}

	RECT rcTags = rc;
	rcTags.top = TAG_TOP + GetCaptionHeight();
	rcTags.bottom = TAG_BOTTOM + GetCaptionHeight();

	DrawRelativeTags( drawHelper, rcTags );

	DrawAbsoluteTags( drawHelper );

	RECT rcPos;
	GetMouseOverPosRect( rcPos );
	DrawMouseOverPos( drawHelper, rcPos );
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void GestureTool::ShowContextMenu( mxEvent *event, bool include_track_menus )
{
	// Construct main menu
	mxPopupMenu *pop = new mxPopupMenu();

	int current, total;
	g_pChoreoView->GetUndoLevels( current, total );
	if ( total > 0 )
	{
		if ( current > 0 )
		{
			pop->add( va( "Undo %s", g_pChoreoView->GetUndoDescription() ), IDC_UNDO_GT );
		}
		
		if ( current <= total - 1 )
		{
			pop->add( va( "Redo %s", g_pChoreoView->GetRedoDescription() ), IDC_REDO_GT );
		}
		pop->addSeparator();
	}

	CEventAbsoluteTag *tag = IsMouseOverTag( (short)event->x, (short)event->y );
	if ( tag )
	{
		pop->add( va( "Delete '%s'...", tag->GetName() ), IDC_GT_DELETE_TAG );
	}
	else
	{
		pop->add( "Insert Tag...", IDC_GT_INSERT_TAG );
	}
	pop->add( "Revert Tag Timings", IDC_GT_REVERT );
	pop->add( va( "Change scale..." ), IDC_GT_CHANGESCALE );

	pop->popup( this, (short)event->x, (short)event->y );
}

void GestureTool::GetWorkspaceLeftRight( int& left, int& right )
{
	left = 0;
	right = w2();
}

//-----------------------------------------------------------------------------
// Purpose: 
//-----------------------------------------------------------------------------
void GestureTool::DrawFocusRect( void )
{
	HDC dc = GetDC( NULL );

	for ( int i = 0; i < m_FocusRects.Size(); i++ )
	{
		RECT rc = m_FocusRects[ i ].m_rcFocus;

		::DrawFocusRect( dc, &rc );
	}

	ReleaseDC( NULL, dc );
}

void GestureTool::SetClickedPos( int x, int y )
{
	m_nClickedX = x;
	m_nClickedY = y;
}

float GestureTool::GetTimeForClickedPos( void )
{
	CChoreoEvent *e = GetSafeEvent();
	if ( !e )
		return 0.0f;

	float t = GetTimeValueForMouse( m_nClickedX );
	return t;
}

//-----------------------------------------------------------------------------
// Purpose: 
// Input  : dragtype - 
//			startx - 
//			cursor - 
//-----------------------------------------------------------------------------
void GestureTool::StartDragging( int dragtype, int startx, int starty, HCURSOR cursor )
{
	m_nDragType = dragtype;
	m_nStartX	= startx;
	m_nLastX	= startx;
	m_nStartY	= starty;
	m_nLastY	= starty;
	
	if ( m_hPrevCursor )
	{
		SetCursor( m_hPrevCursor );
		m_hPrevCursor = NULL;
	}
	m_hPrevCursor = SetCursor( cursor );

	m_FocusRects.Purge();

	RECT rcStart;
	rcStart.left = startx;
	rcStart.right = startx;

	bool addrect = true;
	switch ( dragtype )
	{
	default:
	case DRAGTYPE_SCRUBBER:
		{
			RECT rcScrub;
			GetScrubHandleRect( rcScrub, m_flScrub, true );

			rcStart = rcScrub;
			rcStart.left = ( rcScrub.left + rcScrub.right ) / 2;
			rcStart.right = rcStart.left;
			rcStart.top = rcScrub.bottom;

			rcStart.bottom = h2();
		}
		break;
	case DRAGTYPE_ABSOLUTE_TIMING_TAG:
		{
			rcStart.top = 0;
			rcStart.bottom = h2();
		}
		break;
	}


	if ( addrect )
	{
		AddFocusRect( rcStart );
	}
	
	DrawFocusRect();
}

void GestureTool::OnMouseMove( mxEvent *event )
{
	int mx = (short)event->x;
	int my = (short)event->y;

	event->x = (short)mx;

	if ( m_nDragType != DRAGTYPE_NONE )
	{
		DrawFocusRect();

		for ( int i = 0; i < m_FocusRects.Size(); i++ )
		{
			CFocusRect *f = &m_FocusRects[ i ];
			f->m_rcFocus = f->m_rcOrig;

			switch ( m_nDragType )
			{
			default:
			case DRAGTYPE_SCRUBBER:
				{
					ApplyBounds( mx, my );
					if ( w2() > 0 )
					{
						float t = GetTimeValueForMouse( mx );
						t += m_flScrubberTimeOffset;
						ForceScrubPosition( t );
					}
				}
				break;
			case DRAGTYPE_ABSOLUTE_TIMING_TAG:
				{
					ApplyBounds( mx, my );
				}
				break;
			}

			OffsetRect( &f->m_rcFocus, ( mx - m_nStartX ),	0 );
		}

		DrawFocusRect();
	}
	else
	{
		if ( m_hPrevCursor )
		{
			SetCursor( m_hPrevCursor );
			m_hPrevCursor = NULL;
		}

		if ( IsMouseOverScrubHandle( event ) )
		{
			m_hPrevCursor = SetCursor( LoadCursor( NULL, IDC_SIZEWE ) );
		}
		else if ( IsMouseOverTag( mx, my ) )
		{
			m_hPrevCursor = SetCursor( LoadCursor( NULL, IDC_SIZEWE ) );
		}
	}

	m_nLastX = (short)event->x;
	m_nLastY = (short)event->y;
}

int	GestureTool::handleEvent( mxEvent *event )
{
	int iret = 0;

	if ( HandleToolEvent( event ) )
	{
		return iret;
	}

	switch ( event->event )
	{
	case mxEvent::Size:
		{
			int w, h;
			w = event->width;
			h = event->height;

			m_nLastHPixelsNeeded = 0;
			InvalidateLayout();
			iret = 1;
		}
		break;
	case mxEvent::MouseWheeled:
		{
			// Zoom time in  / out
			if ( event->height > 0 )
			{
				m_nTimeZoom = min( m_nTimeZoom + TIME_ZOOM_STEP, MAX_TIME_ZOOM );
			}
			else
			{
				m_nTimeZoom = max( m_nTimeZoom - TIME_ZOOM_STEP, TIME_ZOOM_STEP );
			}
			RepositionHSlider();
			redraw();
			iret = 1;
		}
		break;
	case mxEvent::MouseDown:
		{
			bool ctrldown = ( event->modifiers & mxEvent::KeyCtrl ) ? true : false;
			bool shiftdown = ( event->modifiers & mxEvent::KeyShift ) ? true : false;

			iret = 1;

			int mx = (short)event->x;
			int my = (short)event->y;

			SetClickedPos( mx, my );

			SetMouseOverPos( mx, my );
			DrawMouseOverPos();

			if ( event->buttons & mxEvent::MouseRightButton )
			{
				ShowContextMenu( event, false );
				return iret;
			}
		
			if ( m_nDragType == DRAGTYPE_NONE )
			{
				if ( IsMouseOverScrubHandle( event ) )
				{
					if ( w2() > 0 )
					{
						float t = GetTimeValueForMouse( (short)event->x );
						m_flScrubberTimeOffset = m_flScrub - t;
						float maxoffset = 0.5f * (float)SCRUBBER_HANDLE_WIDTH / GetPixelsPerSecond();
						m_flScrubberTimeOffset = clamp( m_flScrubberTimeOffset, -maxoffset, maxoffset );
						t += m_flScrubberTimeOffset;
						ForceScrubPosition( t );
					}

					StartDragging( DRAGTYPE_SCRUBBER, m_nClickedX, m_nClickedY, LoadCursor( NULL, IDC_SIZEWE ) );
				}
				else if ( IsMouseOverTag( mx, my ) )
				{
					StartDragging( DRAGTYPE_ABSOLUTE_TIMING_TAG, m_nClickedX, m_nClickedY, LoadCursor( NULL, IDC_SIZEWE ) );
				}
				else
				{
					if ( w2() > 0 )
					{
						float t = GetTimeValueForMouse( (short)event->x );

						SetScrubTargetTime( t );
					}
				}

				CalcBounds( m_nDragType );
			}
		}
		break;
	case mxEvent::MouseDrag:
	case mxEvent::MouseMove:
		{
			int mx = (short)event->x;
			int my = (short)event->y;

			SetMouseOverPos( mx, my );
			DrawMouseOverPos();

			OnMouseMove( event );

			iret = 1;
		}
		break;
	case mxEvent::MouseUp:
		{
			if ( event->buttons & mxEvent::MouseRightButton )
			{
				return 1;
			}

			int mx = (short)event->x;
			int my = (short)event->y;

			if ( m_nDragType != DRAGTYPE_NONE )
			{
				DrawFocusRect();
			}

			if ( m_hPrevCursor )
			{
				SetCursor( m_hPrevCursor );
				m_hPrevCursor = 0;
			}

			switch ( m_nDragType )
			{
			case DRAGTYPE_NONE:
				break;
			case DRAGTYPE_SCRUBBER:
				{
					ApplyBounds( mx, my );

					int dx = mx - m_nStartX;
					int dy = my = m_nStartY;

					if ( w2() > 0 )
					{
						float t = GetTimeValueForMouse( (short)event->x );
						t += m_flScrubberTimeOffset;
						ForceScrubPosition( t );
						m_flScrubberTimeOffset = 0.0f;
					}
				}
				break;
			case DRAGTYPE_ABSOLUTE_TIMING_TAG:
				{
					ApplyBounds( mx, my );

					CEventAbsoluteTag *tag = IsMouseOverTag( m_nClickedX, m_nClickedY );
					if ( tag && w2() && GetSafeEvent() )
					{
						float t = GetTimeValueForMouse( mx );
						float lastfrac = t / GetSafeEvent()->GetDuration();
						lastfrac = clamp( lastfrac, 0.0f, 1.0f );

						g_pChoreoView->SetDirty( true );
						g_pChoreoView->PushUndo( "move absolute tag" );
						tag->SetTime( lastfrac );
						g_pChoreoView->PushRedo( "move absolute tag" );
						redraw();
					}
			
				}
				break;
			}

			m_nDragType = DRAGTYPE_NONE;

			SetMouseOverPos( mx, my );
			DrawMouseOverPos();

			iret = 1;
		}
		break;
	case mxEvent::Action:
		{
			iret = 1;
			switch ( event->action )
			{
			default:
				iret = 0;
				break;
			case IDC_UNDO_GT:
				OnUndo();
				break;
			case IDC_REDO_GT:
				OnRedo();
				break;
			case IDC_GT_DELETE_TAG:
				OnDeleteTag();
				break;
			case IDC_GT_INSERT_TAG:
				OnInsertTag();
				break;
			case IDC_GT_REVERT:
				OnRevert();
				break;
			case IDC_GESTUREHSCROLL:
				{
					int offset = 0;
					bool processed = true;

					switch ( event->modifiers )
					{
					case SB_THUMBTRACK:
						offset = event->height;
						break;
					case SB_PAGEUP:
						offset = m_pHorzScrollBar->getValue();
						offset -= 20;
						offset = max( offset, m_pHorzScrollBar->getMinValue() );
						break;
					case SB_PAGEDOWN:
						offset = m_pHorzScrollBar->getValue();
						offset += 20;
						offset = min( offset, m_pHorzScrollBar->getMaxValue() );
						break;
					case SB_LINEUP:
						offset = m_pHorzScrollBar->getValue();
						offset -= 10;
						offset = max( offset, m_pHorzScrollBar->getMinValue() );
						break;
					case SB_LINEDOWN:
						offset = m_pHorzScrollBar->getValue();
						offset += 10;
						offset = min( offset, m_pHorzScrollBar->getMaxValue() );
						break;
					default:
						processed = false;
						break;
					}

					if ( processed )
					{
						MoveTimeSliderToPos( offset );
					}
				}
				break;
			case IDC_GT_CHANGESCALE:
				{
					OnChangeScale();
				}
				break;