sceneramptool.cpp

hl2 source code. Do not use it illegal.

void SceneRampTool::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 )
	{
	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;
	default:
		{
			rcStart.top = starty;
			rcStart.bottom = starty;
		}
		break;
	}


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

void SceneRampTool::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:
				{
					OffsetRect( &f->m_rcFocus, ( mx - m_nStartX ),	( my - m_nStartY ) );
				}
				break;
			case DRAGTYPE_SCRUBBER:
				{
					ApplyBounds( mx, my );
					if ( w2() > 0 )
					{
						float t = GetTimeValueForMouse( mx );
						t += m_flScrubberTimeOffset;
						ForceScrubPosition( t );
					}

					OffsetRect( &f->m_rcFocus, ( mx - m_nStartX ),	0 );
				}
				break;
			case DRAGTYPE_MOVEPOINTS_TIME:
			case DRAGTYPE_MOVEPOINTS_VALUE:
				{
					int dx = mx - m_nLastX;
					int dy = my - m_nLastY;

					if ( !( event->modifiers & mxEvent::KeyCtrl ) )
					{
						// Zero out motion on other axis
						if ( m_nDragType == DRAGTYPE_MOVEPOINTS_VALUE )
						{
							dx = 0;
							mx = m_nLastX;
						}
						else
						{
							dy = 0;
							my = m_nLastY;
						}
					}
					else
					{
						SetCursor( LoadCursor( NULL, IDC_SIZEALL ) );
					}

					RECT rcSamples;
					GetSampleTrayRect( rcSamples );

					int height = rcSamples.bottom - rcSamples.top;
					Assert( height > 0 );

					float dfdx = (float)dx / GetPixelsPerSecond();
					float dfdy = (float)dy / (float)height;

					MoveSelectedSamples( dfdx, dfdy );

					// Update the scrubber
					if ( w2() > 0 )
					{
						float t = GetTimeValueForMouse( mx );
						ForceScrubPosition( t );
						g_pMatSysWindow->Frame();
					}

					OffsetRect( &f->m_rcFocus, dx, dy );
				}
				break;
			case DRAGTYPE_SELECTION:
				{
					int dy = my - m_nLastY;	

					RECT rcFocus;
					
					rcFocus.left = m_nStartX < m_nLastX ? m_nStartX : m_nLastX;
					rcFocus.right = m_nStartX < m_nLastX ? m_nLastX : m_nStartX;

					rcFocus.top = m_nStartY < m_nLastY ? m_nStartY : m_nLastY;
					rcFocus.bottom = m_nStartY < m_nLastY ? m_nLastY : m_nStartY;

					POINT offset;
					offset.x = 0;
					offset.y = 0;
					ClientToScreen( (HWND)getHandle(), &offset );
					OffsetRect( &rcFocus, offset.x, offset.y );

					f->m_rcFocus = rcFocus;
				}
				break;
			}
		}

		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	SceneRampTool::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;

			bool rightbutton = ( event->buttons & mxEvent::MouseRightButton ) ? true : false;

			iret = 1;

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

			SetClickedPos( mx, my );

			SetMouseOverPos( mx, my );
			DrawMouseOverPos();

			POINT pt;
			pt.x = mx;
			pt.y = my;

			RECT rcSamples;
			GetSampleTrayRect( rcSamples );

			bool insamplearea = PtInRect( &rcSamples, pt ) ? true : false;

			if ( m_nDragType == DRAGTYPE_NONE )
			{
				CExpressionSample *sample = GetSampleUnderMouse( event );

				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 ( insamplearea )
				{
					if ( sample )
					{
						if  ( shiftdown ) 
						{
							sample->selected = !sample->selected;
							redraw();
						}
						else if ( sample->selected )
						{
							g_pChoreoView->SetDirty( true );
							g_pChoreoView->PushUndo( "move scene ramp points" );

							StartDragging( 
								rightbutton ? DRAGTYPE_MOVEPOINTS_TIME : DRAGTYPE_MOVEPOINTS_VALUE, 
								m_nClickedX, m_nClickedY, 
								LoadCursor( NULL, rightbutton ? IDC_SIZEWE : IDC_SIZENS ) );
						}
						else
						{
							if  ( !shiftdown ) 
							{
								DeselectAll();
							}

							StartDragging( DRAGTYPE_SELECTION, m_nClickedX, m_nClickedY, LoadCursor( NULL, IDC_ARROW ) );
						}
					}
					else if ( ctrldown )
					{
						CChoreoScene *s = GetSafeScene();
						if ( s )
						{
							// Add a sample point
							float t = GetTimeValueForMouse( mx );
							
							t = FacePoser_SnapTime( t );
							float value = 1.0f - (float)( (short)event->y - rcSamples.top ) / (float)( rcSamples.bottom - rcSamples.top );
							value = clamp( value, 0.0f, 1.0f );
							
							g_pChoreoView->SetDirty( true );
							g_pChoreoView->PushUndo( "Add scene ramp point" );

							s->AddSceneRamp( t, value, false );

							s->ResortSceneRamp();

							g_pChoreoView->PushRedo( "Add scene ramp point" );
							
							redraw();
						}
					}
					else
					{
						if ( event->buttons & mxEvent::MouseRightButton )
						{
							ShowContextMenu( event, false );
							iret = 1;
							return iret;
						}
						else
						{
							if  ( !shiftdown ) 
							{
								DeselectAll();
							}

							StartDragging( DRAGTYPE_SELECTION, m_nClickedX, m_nClickedY, LoadCursor( NULL, IDC_ARROW ) );
						}
					}
				}
				else
				{
					if ( event->buttons & mxEvent::MouseRightButton )
					{
						ShowContextMenu( event, false );
						iret = 1;
						return iret;
					}
					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:
		{
			OnMouseMove( event );

			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_MOVEPOINTS_VALUE:
			case DRAGTYPE_MOVEPOINTS_TIME:
				{
					g_pChoreoView->PushRedo( "move ramp points" );
				}
				break;
			case DRAGTYPE_SELECTION:
				{
					SelectPoints();
				}
				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_SRT:
				{
					OnUndo();
				}
				break;
			case IDC_REDO_SRT:
				{
					OnRedo();
				}
				break;
			case IDC_SRT_DELETE:
				{
					Delete();
				}
				break;
			case IDC_SRT_DESELECT:
				{
					DeselectAll();
				}
				break;
			case IDC_SRT_SELECTALL:
				{
					SelectAll();
				}
				break;
			case IDC_SRT_RAMPHSCROLL:
				{
					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;
					}