bool TrackBar::OnEventKeyboard(Event event,WPARAM wparam,LPARAM lparam)
{
if(!GetVisible() || !GetEnabled())
return false;
switch(event)
{
case EventKeyDown:
if(wparam == VK_DOWN || wparam == VK_LEFT)
{
if(GetTrackValue())
SetTrackValue(GetTrackValue() - 1);
if(GetParent())
GetParent()->OnEvent(EventChildCommand,ControlEventTrackChange,(LPARAM)this);
return true;
}
if(wparam == VK_UP || wparam == VK_RIGHT)
{
if(GetTrackValue() < GetTrackRange())
SetTrackValue(GetTrackValue() + 1);
if(GetParent())
GetParent()->OnEvent(EventChildCommand,ControlEventTrackChange,(LPARAM)this);
return true;
}
if(wparam == VK_HOME)
{
SetTrackValue(0);
if(GetParent())
GetParent()->OnEvent(EventChildCommand,ControlEventTrackChange,(LPARAM)this);
return true;
}
if(wparam == VK_END)
{
SetTrackValue(GetTrackRange());
if(GetParent())
GetParent()->OnEvent(EventChildCommand,ControlEventTrackChange,(LPARAM)this);
return true;
}
break;
}
return Control::OnEventKeyboard(event,wparam,lparam);
}
Rect TrackBar::GetTrackBox(void) const
{
Rect box = GetBoundingBox();
Size size(8,box.GetHeight());
return Rect(Point(box.left + box.GetWidth() * GetTrackValue() / GetTrackRange() - size.cx / 2,box.top + box.GetHeight() / 2 - size.cy / 2 + 2),size);
}
bool TrackBar::OnRender(void)
{
if(!GetVisible())
return false;
Rect box = GetBoundingBox();
GetKernel()->GetUserInterface()->DrawTrackBar(box,GetTrackBox(),GetTrackRange(),GetTrackValue(),false,GetEnabled(),GetFocused());
return Control::OnRender();
}
void CKeyControl::DrawKeys(CLinkListNode<KEY> *pSelectNode)
{
CLinkListNode<KEY> *pNode = m_collKeys.GetHead();
// Draw the background lines
if (pNode)
{
while (pNode->m_pNext)
{
m_pMemDC->MoveTo(KeyToPos(&pNode->m_Data));
m_pMemDC->LineTo(KeyToPos(&pNode->m_pNext->m_Data));
pNode = pNode->m_pNext;
}
}
// Draw the keys
pNode = m_collKeys.GetHead();
CBrush brBlack;
brBlack.CreateSolidBrush(RGB(0, 0, 0));
CBrush *pOldBrush = m_pMemDC->SelectObject(&brBlack);
while (pNode)
{
CPoint ptCenter = KeyToPos(&pNode->m_Data);
if (pNode == pSelectNode)
{
m_pMemDC->MoveTo(ptCenter.x, ptCenter.y);
m_pMemDC->LineTo(ptCenter.x, m_cy);
CBrush brGreen(RGB(255, 0, 0));
CBrush *pOldBrush = m_pMemDC->SelectObject(&brGreen);
// Draw the time lines down to the bottom of the screen
int nTriSize = 5;
POINT ptTri[3];
ptTri[0].x = ptCenter.x - nTriSize;
ptTri[0].y = m_cy - nTriSize;
ptTri[1].x = ptCenter.x + nTriSize;
ptTri[1].y = m_cy - nTriSize;
ptTri[2].x = ptCenter.x;
ptTri[2].y = m_cy;
m_pMemDC->Polygon(ptTri, 3);
m_pMemDC->SelectObject(pOldBrush);
}
if (pNode->m_Data.m_bSelected)
{
m_pMemDC->FillSolidRect(CRect(ptCenter.x - 5, ptCenter.y - 5, ptCenter.x + 5, ptCenter.y + 5), RGB(255, 0, 0));
m_pMemDC->FrameRect(CRect(ptCenter.x - 5, ptCenter.y - 5, ptCenter.x + 5, ptCenter.y + 5), &brBlack);
}
else
{
m_pMemDC->FillSolidRect(CRect(ptCenter.x - 5, ptCenter.y - 5, ptCenter.x + 5, ptCenter.y + 5), RGB(150, 150, 150));
m_pMemDC->FrameRect(CRect(ptCenter.x - 5, ptCenter.y - 5, ptCenter.x + 5, ptCenter.y + 5), &brBlack);
}
if (pNode == pSelectNode)
{
CString sVal = GetTrackValue(pSelectNode);
CSize szText = m_pMemDC->GetTextExtent(sVal);
ptCenter.x += 10;
if (ptCenter.x + szText.cx > m_cx)
{
ptCenter.x = m_cx - szText.cx;
}
ptCenter.y -= 5;
ptCenter.y -= szText.cy;
if (ptCenter.y < 0)
{
ptCenter.y = 0;
}
m_pMemDC->TextOut(ptCenter.x, ptCenter.y, GetTrackValue(pSelectNode));
}
pNode = pNode->m_pNext;
}
m_pMemDC->SelectObject(pOldBrush);
}
bool TrackBar::OnEventMouse(Event event,WPARAM wparam,LPARAM lparam)
{
if(!GetVisible() || !GetEnabled())
return false;
switch(event)
{
case EventLeftButtonDown:
if(PointInTrack(*(Point*)wparam))
{
if(!GetFocused())
Focus();
mTracking = true;
mTrackingValue = mValue;
mTrackingPosition = ((Point*)wparam)->x - GetTrackBox().GetCenter().x;
SetCapture(GetKernel()->GetWindowHandle());
return true;
}
if(PointIn(*(Point*)wparam))
{
if(!GetFocused())
Focus();
if(((Point*)wparam)->x > GetTrackBox().GetCenter().x)
{
if(GetTrackValue() < GetTrackRange())
SetTrackValue(GetTrackValue() + 1);
}
else
{
if(GetTrackValue())
SetTrackValue(GetTrackValue() - 1);
}
return true;
}
break;
case EventLeftButtonUp:
if(mTracking)
{
mTracking = false;
ReleaseCapture();
return true;
}
break;
case EventMouseMove:
if(mTracking)
{
Point delta = *(Point*)wparam;
delta.x -= GetScreenPosition().x + mTrackingPosition;
float val = (float)GetBoundingBox().GetWidth() / (float)GetTrackRange();
if((float)delta.x / val > (float)GetTrackRange())
SetTrackValue(GetTrackRange());
else if((float)delta.x / val < 0.0f)
SetTrackValue(0);
else
SetTrackValue((float)delta.x / val);
if(GetParent())
GetParent()->OnEvent(EventChildCommand,ControlEventTrackChange,(LPARAM)this);
}
break;
}
return Control::OnEventMouse(event,wparam,lparam);
}
