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Editor/TrackViewTimeBar.cpp

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+// TrackViewTimeBar.cpp : implementation file
+//
+
+#include "stdafx.h"
+#include "TrackViewTimeBar.h"
+
+#include "TrackViewKeyList.h"
+#include "AnimationContext.h"
+
+// CTrackViewTimeBar
+
+#define LEFT_OFFSET 30
+
+IMPLEMENT_DYNAMIC(CTrackViewTimeBar, CWnd)
+CTrackViewTimeBar::CTrackViewTimeBar()
+{
+	m_ticksStep = 0.1f;
+	m_draggingTime = false;
+}
+
+CTrackViewTimeBar::~CTrackViewTimeBar()
+{
+}
+
+
+BEGIN_MESSAGE_MAP(CTrackViewTimeBar, CWnd)
+	ON_WM_PAINT()
+	ON_WM_LBUTTONDOWN()
+	ON_WM_LBUTTONUP()
+	ON_WM_MOUSEMOVE()
+END_MESSAGE_MAP()
+
+
+//////////////////////////////////////////////////////////////////////////
+BOOL CTrackViewTimeBar::Create( DWORD dwStyle,const RECT &rect,CWnd *pParentWnd,UINT nID )
+{
+	m_bkgBrush.CreateSolidBrush(RGB(0xE0,0xE0,0xE0));
+	WNDCLASS wndcls;
+	ZeroStruct(wndcls);
+	//you can specify your own window procedure
+	wndcls.lpfnWndProc = ::DefWindowProc; 
+	wndcls.hInstance = AfxGetInstanceHandle();
+	wndcls.hbrBackground = (HBRUSH)m_bkgBrush.GetSafeHandle();
+	// Specify your own class name for using FindWindow later
+	wndcls.lpszClassName = _T("TrackViewTimeline");
+	AfxRegisterClass(&wndcls);
+
+	return CWnd::Create( _T("TrackViewTimeline"),NULL,dwStyle,rect,pParentWnd,nID );
+}
+
+// CTrackViewTimeBar message handlers
+void CTrackViewTimeBar::OnPaint()
+{
+	CPaintDC dc(this); // device context for painting
+	// TODO: Add your message handler code here
+	// Do not call CWnd::OnPaint() for painting messages
+
+	//CBrush brush(GetSysColor(COLOR_3DFACE));
+	CRect rc;
+	GetClientRect(rc);
+	//::FillRect( dc,rc,(HBRUSH)GetStockObject(GRAY_BRUSH) );
+	dc.Draw3dRect( rc,GetSysColor(COLOR_3DHILIGHT),GetSysColor(COLOR_3DDKSHADOW) );
+
+	CPen *prevPen;
+	CPen ltgray(PS_SOLID,1,RGB(90,90,90));
+	CPen black(PS_SOLID,1,RGB(0,0,0));
+	CPen redpen(PS_SOLID,1,RGB(255,0,0));
+	prevPen = dc.SelectObject(&ltgray);
+	// Draw time ticks every tick step seconds.
+	Range timeRange = m_timeRange;
+	CString str;
+
+	dc.SelectObject(redpen);
+	int x = TimeToItem(m_currTime);
+	dc.SelectObject( GetStockObject(NULL_BRUSH) );
+	dc.Rectangle( x-3,rc.top,x+4,rc.bottom );
+
+	dc.SetTextColor( RGB(0,0,0) );
+	dc.SetBkMode( TRANSPARENT );
+	dc.SelectObject( GetStockObject(DEFAULT_GUI_FONT) );
+
+	int bigTickStep = 100*m_ticksStep;
+	for (float t = ceilf(timeRange.start); t <= timeRange.end; t += m_ticksStep)
+	{
+		int x = TimeToItem(t);
+		dc.MoveTo(x,rc.bottom-2);
+		int tm = 10*t;
+		if (tm%bigTickStep == 0)
+		{
+			dc.SelectObject(black);
+			dc.LineTo(x,rc.bottom-14);
+			str.Format( "%d",(int)t );
+			dc.TextOut( x+2,rc.top,str );
+			dc.SelectObject(ltgray);
+		}
+		else
+			dc.LineTo(x,rc.bottom-6);
+	}
+
+	dc.SelectObject(redpen);
+	dc.MoveTo( x,rc.top ); dc.LineTo( x,rc.bottom );
+	dc.SelectObject( GetStockObject(NULL_BRUSH) );
+//	dc.Rectangle( x-3,rc.top,x+4,rc.bottom );
+
+	dc.SelectObject(prevPen);
+}
+
+//////////////////////////////////////////////////////////////////////////
+void CTrackViewTimeBar::SetTimeRange( float start,float end )
+{
+	m_timeRange.Set( start,end );
+	Invalidate(TRUE);
+}
+
+//////////////////////////////////////////////////////////////////////////
+void CTrackViewTimeBar::SetTimeScale( float timeScale )
+{
+	m_timeScale = timeScale;
+
+	Invalidate(TRUE);
+}
+
+//////////////////////////////////////////////////////////////////////////
+int CTrackViewTimeBar::TimeToItem( float time )
+{
+	if (time < m_timeRange.start || time > m_timeRange.end)
+		return -1;
+
+	int x = LEFT_OFFSET + time*m_timeScale;
+	/*
+	int left = LEFT_OFFSET+m_scrollOffset.x;
+	if (x < left || x > left+m_rcClient.Width())
+		x = -1;
+		*/
+	return x;
+}
+
+//////////////////////////////////////////////////////////////////////////
+void CTrackViewTimeBar::SetCurrTime( float currTime )
+{
+	m_currTime = currTime;
+}
+
+//////////////////////////////////////////////////////////////////////////
+void CTrackViewTimeBar::ChangeTime( float time )
+{
+	time = __max(time,m_timeRange.start);
+	time = __min(time,m_timeRange.end);
+	m_currTime = time;
+	Invalidate(TRUE);
+	NMHDR hdr;
+	hdr.code = TVN_CURRTIMECHANGE;
+	hdr.hwndFrom = GetSafeHwnd();
+	hdr.idFrom = GetDlgCtrlID();
+	GetParent()->SendMessage( WM_NOTIFY,(WPARAM)hdr.idFrom,(LPARAM)&hdr );
+
+	GetIEditor()->GetAnimation()->SetTime( m_currTime );
+}
+
+//////////////////////////////////////////////////////////////////////////
+void CTrackViewTimeBar::OnLButtonDown(UINT nFlags, CPoint point)
+{
+	//int currX = TimeToItem(m_currTime);
+	//if (point.x > currX-3 && point.x < currX+3)
+	{
+		ChangeTime( TimeFromPoint(point) );
+		SetCapture();
+		m_draggingTime = true;
+	}
+
+	CWnd::OnLButtonDown(nFlags, point);
+}
+
+//////////////////////////////////////////////////////////////////////////
+void CTrackViewTimeBar::OnLButtonUp(UINT nFlags, CPoint point)
+{
+	m_draggingTime = false;
+	ReleaseCapture();
+
+	CWnd::OnLButtonUp(nFlags, point);
+}
+
+//////////////////////////////////////////////////////////////////////////
+void CTrackViewTimeBar::OnMouseMove(UINT nFlags, CPoint point)
+{
+	if (m_draggingTime)
+	{
+		ChangeTime( TimeFromPoint(point) );
+	}
+
+	CWnd::OnMouseMove(nFlags, point);
+}
+
+//////////////////////////////////////////////////////////////////////////
+float CTrackViewTimeBar::TimeFromPoint( CPoint point )
+{
+	int x = point.x - LEFT_OFFSET;
+	float time = (float)x / m_timeScale;
+	// Snap to 0.1s.
+	time = ceilf(time*10-0.5f)/10;
+	return time;
+}