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#include "stdafx.h"
#include "CLCDOutputManager.h"
#include "CLCDGfx.h"
#include "CLCDObject.h"
#include "CLCDScreen.h"
//************************************************************************
// Constructor
//************************************************************************
CLCDScreen::CLCDScreen()
{
m_dwExpiration = INFINITE;
m_bAlert = false;
// Set a default screen size to use if no device is plugged in
m_Size.cx = 160;
m_Size.cy = 43;
}
//************************************************************************
// Destructor
//************************************************************************
CLCDScreen::~CLCDScreen()
{
}
//************************************************************************
// Initializes the screen
//************************************************************************
bool CLCDScreen::Initialize()
{
CLCDConnection *pConnection = CLCDOutputManager::GetInstance()->GetLCDConnection();
if(pConnection->GetConnectionState() == CONNECTED) {
m_Size = pConnection->GetDisplaySize();
}
return true;
}
//************************************************************************
// Shuts down the screen
//************************************************************************
bool CLCDScreen::Shutdown()
{
// Shutdown all Objects
vector<CLCDObject*>::iterator iter = m_Objects.begin();
while(iter != m_Objects.end())
{
(*(iter))->Shutdown();
iter++;
}
return true;
}
//************************************************************************
// called when the screens size has changed
//************************************************************************
void CLCDScreen::OnSizeChanged()
{
CLCDConnection *pConnection = CLCDOutputManager::GetInstance()->GetLCDConnection();
if(!pConnection)
return;
m_Size = pConnection->GetDisplaySize();
}
//************************************************************************
// Updates the screen
//************************************************************************
bool CLCDScreen::Update()
{
// Loop through all objects and call their update function
vector<CLCDObject*>::iterator iter = m_Objects.begin();
CLCDObject *pObject = NULL;
while(iter != m_Objects.end())
{
pObject = *(iter);
pObject->Update();
iter++;
}
return true;
}
//************************************************************************
// Draws the screen
//************************************************************************
bool CLCDScreen::Draw(CLCDGfx *pGfx)
{
POINT ptPrevViewportOrg = { 0, 0 };
// Loop through all objects and call their draw function
vector<CLCDObject*>::iterator iter = m_Objects.begin();
CLCDObject *pObject = NULL;
while(iter != m_Objects.end())
{
pObject = *(iter);
// Only draw visible objects
if(!pObject->IsVisible())
{
iter++;
continue;
}
// create the clip region
pGfx->SetClipRegion(pObject->GetOrigin().x, pObject->GetOrigin().y,
pObject->GetWidth(),
pObject->GetHeight());
// offset the control at its origin so controls use (0,0)
SetViewportOrgEx(pGfx->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(pGfx->GetHDC(),
0,
0,
NULL);
*/
pObject->Draw(pGfx);
iter++;
}
// set the clipping region to nothing
SelectClipRgn(pGfx->GetHDC(), NULL);
// restore the viewport origin
SetViewportOrgEx(pGfx->GetHDC(),
0,
0,
NULL);
return true;
}
//************************************************************************
// Set the screen's time until expiration
//************************************************************************
void CLCDScreen::SetExpiration(DWORD dwTime)
{
if(dwTime == INFINITE)
m_dwExpiration = INFINITE;
else
m_dwExpiration = GetTickCount() + dwTime;
}
//************************************************************************
// checks if the screen has expired
//************************************************************************
bool CLCDScreen::HasExpired()
{
if(m_dwExpiration == INFINITE)
return false;
if(m_dwExpiration <= GetTickCount())
return true;
return false;
}
//************************************************************************
// Set the alert status of the screen
//************************************************************************
void CLCDScreen::SetAlert(bool bAlert)
{
m_bAlert = bAlert;
}
//************************************************************************
// gets the alert status of the scren
//************************************************************************
bool CLCDScreen::GetAlert()
{
return m_bAlert;
}
//************************************************************************
// add an object to the screen's object list
//************************************************************************
bool CLCDScreen::AddObject(CLCDObject *pObject)
{
// Check if the object is already managed
vector<CLCDObject*>::iterator iter = m_Objects.begin();
while(iter != m_Objects.end())
{
if(*(iter) == pObject)
return false;
iter++;
}
m_Objects.push_back(pObject);
return true;
}
//************************************************************************
// remove an object from the screen's object list
//************************************************************************
bool CLCDScreen::RemoveObject(CLCDObject *pObject)
{
if(m_Objects.empty())
return false;
// Find and remove the specified object
vector<CLCDObject*>::iterator iter = m_Objects.begin();
while(iter != m_Objects.end())
{
if(*(iter) == pObject)
{
m_Objects.erase(iter);
return true;
}
iter++;
}
return false;
}
//************************************************************************
// gets the screen's height
//************************************************************************
int CLCDScreen::GetHeight()
{
return m_Size.cy;
}
//************************************************************************
// gets the screen's width
//************************************************************************
int CLCDScreen::GetWidth()
{
return m_Size.cx;
}
//************************************************************************
// Called when the screen is activated
//************************************************************************
void CLCDScreen::OnActivation()
{
}
//************************************************************************
// Called when the screen is deactivated
//************************************************************************
void CLCDScreen::OnDeactivation()
{
}
//************************************************************************
// Called when the screen has expired
//************************************************************************
void CLCDScreen::OnExpiration()
{
}
//************************************************************************
// Called when an LCD-button is pressed
//************************************************************************
void CLCDScreen::OnLCDButtonDown(int iButton)
{
}
//************************************************************************
// Called when an LCD-button event is repeated
//************************************************************************
void CLCDScreen::OnLCDButtonRepeated(int iButton)
{
}
//************************************************************************
// Called when an LCD-button is released
//************************************************************************
void CLCDScreen::OnLCDButtonUp(int iButton)
{
}
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