/****f* EZ.LCD.Wrapper/CEzLcd::SetText
* NAME
* HRESULT CEzLcd::SetText -- Set text
* INPUTS
* handle - handle to the object.
* text - text string.
* RETURN VALUE
* E_FAIL if there was an error.
* S_OK if no error.
******
*/
HRESULT CEzLcd::SetText(HANDLE handle, LPCTSTR text)
{
CLCDBase* myObject = GetObject(handle);
if (NULL != myObject)
{
assert(LG_STATIC_TEXT == myObject->GetObjectType() || LG_SCROLLING_TEXT == myObject->GetObjectType());
if (LG_STATIC_TEXT == myObject->GetObjectType())
{
CLCDText* staticText = static_cast<CLCDText*>(myObject);
assert(NULL != staticText);
staticText->SetText(text);
return S_OK;
}
else if (LG_SCROLLING_TEXT == myObject->GetObjectType())
{
CLCDStreamingText* streamingText = static_cast<CLCDStreamingText*>(myObject);
assert(NULL != streamingText);
streamingText->SetText(text);
return S_OK;
}
}
return E_FAIL;
}
/****f* LCD.SDK/SetText(HANDLE.handle,LPCTSTR.text,BOOL.resetScrollingTextPosition)
* NAME
* HRESULT SetText(HANDLE handle,
* LPCTSTR text,
* BOOL resetScrollingTextPosition = FALSE) -- Sets the text in the
* control on the page being worked on.
* INPUTS
* handle - handle to the object.
* text - text string.
* resetScrollingTextPosition - indicates if position of scrolling
* text needs to be reset.
* RETURN VALUE
* S_OK if succeeded.
* E_FAIL otherwise.
******
*/
HRESULT CEzLcd::SetText(HANDLE handle, LPCTSTR text, BOOL resetScrollingTextPosition)
{
CLCDBase* myObject = (CLCDBase*)handle;
if (NULL != myObject)
{
if (!((LG_STATIC_TEXT == myObject->GetObjectType() || LG_SCROLLING_TEXT == myObject->GetObjectType())))
return E_FAIL;
if (LG_STATIC_TEXT == myObject->GetObjectType())
{
CLCDText* staticText = static_cast<CLCDText*>(myObject);
if (NULL == staticText)
return E_FAIL;
staticText->SetText(text);
return S_OK;
}
else if (LG_SCROLLING_TEXT == myObject->GetObjectType())
{
CLCDStreamingText* streamingText = static_cast<CLCDStreamingText*>(myObject);
if (NULL == streamingText)
return E_FAIL;
streamingText->SetText(text);
if (resetScrollingTextPosition)
{
streamingText->ResetUpdate();
}
return S_OK;
}
}
return E_FAIL;
}
void CLCDCollection::OnDraw(CLCDGfx &rGfx)
{
LCD_OBJECT_LIST::iterator it = m_Objects.begin();
while(it != m_Objects.end())
{
CLCDBase *pObject = *it;
LCDUIASSERT(NULL != pObject);
if (!pObject->IsVisible())
{
++it;
continue;
}
// create the clip region
HRGN hRgn = CreateRectRgn(pObject->GetOrigin().x, pObject->GetOrigin().y,
pObject->GetOrigin().x + pObject->GetWidth(),
pObject->GetOrigin().y + pObject->GetHeight());
// ensure that controls only draw within their specified region
SelectClipRgn(rGfx.GetHDC(), hRgn);
// free the region (a copy is used in the call above)
DeleteObject(hRgn);
// offset the control at its origin so controls use (0,0)
POINT ptPrevViewportOrg = { 0, 0 };
SetViewportOrgEx(rGfx.GetHDC(),
pObject->GetOrigin().x,
pObject->GetOrigin().y,
&ptPrevViewportOrg);
// allow controls to supply additional translation
// this allows controls to move freely within the confined viewport
OffsetViewportOrgEx(rGfx.GetHDC(),
pObject->GetLogicalOrigin().x,
pObject->GetLogicalOrigin().y,
NULL);
pObject->OnDraw(rGfx);
// set the clipping region to nothing
SelectClipRgn(rGfx.GetHDC(), NULL);
// restore the viewport origin
SetViewportOrgEx(rGfx.GetHDC(),
ptPrevViewportOrg.x,
ptPrevViewportOrg.y,
NULL);
// restore the viewport origin offset
OffsetViewportOrgEx(rGfx.GetHDC(), 0, 0, NULL);
++it;
}
}
void CLCDCollection::ResetUpdate(void)
{
LCD_OBJECT_LIST::iterator it = m_Objects.begin();
while(it != m_Objects.end())
{
CLCDBase *pObject = *it;
LCDUIASSERT(NULL != pObject);
pObject->ResetUpdate();
++it;
}
}
void CLCDCollection::OnUpdate(DWORD dwTimestamp)
{
LCD_OBJECT_LIST::iterator it = m_Objects.begin();
while(it != m_Objects.end())
{
CLCDBase *pObject = *it;
LCDUIASSERT(NULL != pObject);
pObject->OnUpdate(dwTimestamp);
++it;
}
}
void CLCDCollection::Show(BOOL bShow)
{
LCD_OBJECT_LIST::iterator it = m_Objects.begin();
while(it != m_Objects.end())
{
CLCDBase *pObject = *it;
LCDUIASSERT(NULL != pObject);
pObject->Show(bShow);
++it;
}
CLCDBase::Show(bShow);
}
/****f* EZ.LCD.Wrapper/CEzLcd::SetVisible
* NAME
* HRESULT CEzLcd::SetVisible -- set corresponding object to be
* visible or invisible.
* INPUTS
* handle - handle to the object.
* visible - set to FALSE to make object invisible, TRUE to
* make it visible (default).
* RETURN VALUE
* E_FAIL if there was an error.
* S_OK if no error.
******
*/
HRESULT CEzLcd::SetVisible(HANDLE handle, BOOL visible)
{
CLCDBase* myObject = GetObject(handle);
assert(NULL != myObject);
assert(NULL != myObject);
if (NULL != myObject && NULL != myObject)
{
myObject->Show(visible);
return S_OK;
}
return E_FAIL;
}
/****f* EZ.LCD.Wrapper/CEzLcd::SetOrigin
* NAME
* HRESULT CEzLcd::SetOrigin -- Set the origin of an object. The
* origin corresponds to the furthest pixel on the
* upper left corner of an object.
* INPUTS
* handle - handle to the object.
* x - x-axis part of the origin.
* y - y-axis part of the origin.
* RETURN VALUE
* E_FAIL if there was an error.
* S_OK if no error.
******
*/
HRESULT CEzLcd::SetOrigin(HANDLE handle, INT x, INT y)
{
CLCDBase* myObject = GetObject(handle);
assert(NULL != myObject);
assert(NULL != myObject);
if (NULL != myObject && NULL != myObject)
{
myObject->SetOrigin(x, y);
return S_OK;
}
return E_FAIL;
}
void CLCDCollection::OnUpdate(DWORD dwTimestamp)
{
//iterate through your objects and update them
LCD_OBJECT_LIST::iterator it = m_Objects.begin();
while(it != m_Objects.end())
{
CLCDBase *pObject = *it++;
LCDUIASSERT(NULL != pObject);
pObject->OnUpdate(dwTimestamp);
}
//and update yourself
CLCDBase::OnUpdate(dwTimestamp);
}
void CLCDStreamingText::SetOrigin(int nX, int nY)
{
m_Origin.x = nX;
m_Origin.y = nY;
LCD_OBJECT_LIST::iterator it = m_Objects.begin();
if (it != m_Objects.end())
{
CLCDBase *pObject = *it;
POINT ptOldOrigin = pObject->GetOrigin();
pObject->SetOrigin(nX, nY);
if ( (ptOldOrigin.x != nX) && (ptOldOrigin.y != nY) )
{
ResetUpdate();
}
}
}
/****f* EZ.LCD.Wrapper/CEzLcd::SetProgressBarSize
* NAME
* HRESULT CEzLcd::SetProgressBarSize -- Set size of progress bar
* INPUTS
* handle - handle to the object.
* x - x-axis part of the size
* y - y-axis part of the size (a good default value is 5).
* RETURN VALUE
* E_FAIL if there was an error or if handle does not correspond to a
* progress bar.
* S_OK if no error.
******
*/
HRESULT CEzLcd::SetProgressBarSize(HANDLE handle, INT x, INT y)
{
CLCDBase* myObject = GetObject(handle);
assert(NULL != myObject);
assert(NULL != myObject);
if (NULL != myObject && NULL != myObject)
{
assert(LG_PROGRESS_BAR == myObject->GetObjectType());
// only allow this function for progress bars
if (LG_PROGRESS_BAR == myObject->GetObjectType())
{
myObject->SetSize(x, y);
return S_OK;
}
}
return E_FAIL;
}
/****f* EZ.LCD.Wrapper/CEzLcd::SetProgressBarPosition
* NAME
* HRESULT CEzLcd::SetProgressBarPosition -- Set position of the
* progress bar's cursor
* INPUTS
* handle - handle to the object.
* percentage - percentage of progress (0 to 100).
* RETURN VALUE
* E_FAIL if there was an error or if handle does not correspond to a
* progress bar.
* S_OK if no error.
******
*/
HRESULT CEzLcd::SetProgressBarPosition(HANDLE handle, FLOAT percentage)
{
CLCDBase* myObject = GetObject(handle);
if (NULL != myObject)
{
assert(LG_PROGRESS_BAR == myObject->GetObjectType());
// only allow this function for progress bars
if (LG_PROGRESS_BAR == myObject->GetObjectType())
{
CLCDProgressBar *progressBar = static_cast<CLCDProgressBar*>(myObject);
assert(NULL != progressBar);
progressBar->SetPos(percentage);
return S_OK;
}
}
return E_FAIL;
}
HRESULT CEzLcdPage::SetText(HANDLE handle, LPCTSTR text, BOOL resetScrollingTextPosition)
{
CLCDBase* myObject = GetObject(handle);
if (NULL != myObject)
{
if (!((LG_STATIC_TEXT == myObject->GetObjectType() || LG_SCROLLING_TEXT == myObject->GetObjectType() || LG_RIGHTFOCUS_TEXT == myObject->GetObjectType() )))
return E_FAIL;
if (LG_STATIC_TEXT == myObject->GetObjectType())
{
CLCDText* staticText = static_cast<CLCDText*>(myObject);
if (NULL == staticText)
return E_FAIL;
staticText->SetText(text);
return S_OK;
}
else if (LG_SCROLLING_TEXT == myObject->GetObjectType())
{
CLCDStreamingText* streamingText = static_cast<CLCDStreamingText*>(myObject);
if (NULL == streamingText)
return E_FAIL;
streamingText->SetText(text);
if (resetScrollingTextPosition)
{
streamingText->ResetUpdate();
}
return S_OK;
}
else if (LG_RIGHTFOCUS_TEXT == myObject->GetObjectType())
{
CLCDText* rightFocusText = static_cast<CLCDText*>(myObject);
if (NULL == rightFocusText)
return E_FAIL;
rightFocusText->SetText(text);
rightFocusText->CalculateExtent(true);
// if out of focus, set alignment to right in order to follow what is written
if (rightFocusText->GetHExtent().cx>=rightFocusText->GetSize().cx)
rightFocusText->SetAlignment(DT_RIGHT);
else
rightFocusText->SetAlignment(DT_LEFT);
return S_OK;
}
}
return E_FAIL;
}
void CLCDPage::OnDraw(CLCDGfxBase &rGfx)
{
if(!IsVisible())
{
return;
}
//Draw the background first
if(m_bUseBitmapBackground)
{
m_Background.OnDraw(rGfx);
}
else if(m_bUseColorBackground)
{
HBRUSH hBackBrush = CreateSolidBrush(m_BackgroundColor);
HBRUSH hOldBrush = (HBRUSH)SelectObject(rGfx.GetHDC(), hBackBrush);
Rectangle(rGfx.GetHDC(), 0, 0, GetWidth(), GetHeight());
SelectObject(rGfx.GetHDC(), hOldBrush);
DeleteObject(hBackBrush);
}
//iterate through your objects and draw them
LCD_OBJECT_LIST::iterator it = m_Objects.begin();
while(it != m_Objects.end())
{
CLCDBase *pObject = *it++;
LCDUIASSERT(NULL != pObject);
if (pObject->IsVisible())
{
// create the clip region
// Note that pages can now be added to pages (GetOrigin of the page is now factored in)
HRGN hRgn = CreateRectRgn(GetOrigin().x + pObject->GetOrigin().x, GetOrigin().y + pObject->GetOrigin().y,
GetOrigin().x + pObject->GetOrigin().x + pObject->GetWidth(),
GetOrigin().y + pObject->GetOrigin().y + pObject->GetHeight());
// ensure that controls only draw within their specified region
SelectClipRgn(rGfx.GetHDC(), hRgn);
// free the region (a copy is used in the call above)
DeleteObject(hRgn);
// offset the control at its origin so controls use (0,0)
POINT ptPrevViewportOrg = { 0, 0 };
SetViewportOrgEx(rGfx.GetHDC(),
GetOrigin().x + pObject->GetOrigin().x,
GetOrigin().y + pObject->GetOrigin().y,
&ptPrevViewportOrg);
// allow controls to supply additional translation
// this allows controls to move freely within the confined viewport
OffsetViewportOrgEx(rGfx.GetHDC(),
pObject->GetLogicalOrigin().x,
pObject->GetLogicalOrigin().y,
NULL);
pObject->OnDraw(rGfx);
// set the clipping region to nothing
SelectClipRgn(rGfx.GetHDC(), NULL);
// restore the viewport origin
SetViewportOrgEx(rGfx.GetHDC(),
ptPrevViewportOrg.x,
ptPrevViewportOrg.y,
NULL);
// restore the viewport origin offset
OffsetViewportOrgEx(rGfx.GetHDC(), 0, 0, NULL);
}
}
}
