CBackground::CBackground()
{
bgSize = MakeCoord(-1,-1);
hBgDc = NULL;
hBgBitmap = NULL;
hOldBitmap = NULL;
//// Alpha blending
//mh_MsImg32 = LoadLibrary(L"Msimg32.dll");
//if (mh_MsImg32) {
// fAlphaBlend = (AlphaBlend_t)GetProcAddress(mh_MsImg32, "AlphaBlend");
//} else {
// fAlphaBlend = NULL;
//}
#ifdef __GNUC__
HMODULE hGdi32 = GetModuleHandle(L"gdi32.dll");
GdiAlphaBlend = (AlphaBlend_t)(hGdi32 ? GetProcAddress(hGdi32, "GdiAlphaBlend") : NULL);
#endif
mb_NeedBgUpdate = false;
mb_BgLastFade = false;
mp_BkImgData = NULL;
mn_BkImgDataMax = 0;
mb_BkImgChanged = FALSE;
mb_BkImgExist = /*mb_BkImgDelete =*/ FALSE;
mp_BkEmfData = NULL;
mn_BkEmfDataMax = 0;
mb_BkEmfChanged = FALSE;
mcs_BkImgData = NULL;
mn_BkImgWidth = mn_BkImgHeight = 0;
}
// Helper function: support Tab-completion in cmd.exe and others
COORD FixupReadStartCursorPos(DWORD nNumberOfCharsToRead, CONSOLE_SCREEN_BUFFER_INFO& csbi, const MY_CONSOLE_READCONSOLE_CONTROL* pInputControl)
{
COORD crStartCursorPos = csbi.dwCursorPosition;
if (pInputControl && (pInputControl->nLength >= sizeof(*pInputControl)))
{
if (pInputControl->nInitialChars < nNumberOfCharsToRead)
{
// Part of input is already "printed" to the buffer, take it into account
int nNewX = (int)crStartCursorPos.X - pInputControl->nInitialChars;
int nNewY = (int)crStartCursorPos.Y;
if (nNewX < 0)
{
int nRows = klMin(nNewY, (int)((-nNewX) / csbi.dwSize.X));
if ((nRows < nNewY) && ((nNewX + (nRows * csbi.dwSize.X)) < 0))
nRows++;
_ASSERTE(((nNewY - nRows) >= 0) && ((nNewX + (nRows * csbi.dwSize.X)) >= 0));
nNewX += (nRows * csbi.dwSize.X);
nNewY -= nRows;
}
if (nNewX >= 0 && nNewY >= 0)
{
crStartCursorPos = MakeCoord(nNewX, nNewY);
csbi.dwCursorPosition = crStartCursorPos;
}
else
{
_ASSERTE(nNewX >= 0 && nNewY >= 0);
}
}
}
return crStartCursorPos;
}
void TermX::Reset()
{
AppCursorKeys = false;
MouseButtons = 0;
LastMousePos = MakeCoord(-1,-1);
LastDeadCharVK = 0;
}
// Должна вернуть true, если данные изменились (то есть будет isForce при полной перерисовке)
bool CBackground::PrepareBackground(CVirtualConsole* pVCon, HDC&/*OUT*/ phBgDc, COORD&/*OUT*/ pbgBmpSize)
{
if (!this)
{
_ASSERTE(this!=NULL);
return false;
}
_ASSERTE(isMainThread() && "Must be executed in main thread");
bool bSucceeded = true;
bool lbForceUpdate = false;
LONG lBgWidth = 0, lBgHeight = 0;
BOOL lbVConImage = FALSE;
if (gpSet->isBgPluginAllowed)
{
if (HasPluginBackgroundImage(&lBgWidth, &lBgHeight)
&& lBgWidth && lBgHeight)
{
lbVConImage = TRUE;
}
}
LONG lMaxBgWidth = 0, lMaxBgHeight = 0;
bool bIsForeground = gpConEmu->isMeForeground(true);
// Если плагин свой фон не подсунул
if (!lbVConImage)
{
//if (mp_PluginBg)
//{
// delete mp_PluginBg;
// mp_PluginBg = NULL;
//}
#ifndef APPDISTINCTBACKGROUND
// То работаем на общих основаниях, через настройки (или AppDistinct)
return gpSetCls->PrepareBackground(pVCon, &phBgDc, &pbgBmpSize);
#else
CBackgroundInfo* pBgFile = pVCon->GetBackgroundObject();
if (!pBgFile)
{
_ASSERTE(FALSE && "Background object must be created in VCon");
return false;
}
if (!mb_NeedBgUpdate)
{
if ((hBgDc == NULL)
|| (mb_BgLastFade == bIsForeground && gpSet->isFadeInactive)
|| (!gpSet->isFadeInactive && mb_BgLastFade))
{
NeedBackgroundUpdate();
}
}
pBgFile->PollBackgroundFile();
RECT rcWork = {0, 0, pVCon->GetVConWidth(), pVCon->GetVConHeight()};
// необходимо проверить размер требуемой картинки
// -- здесь - всегда только файловая подложка
if ((gpSet->bgOperation == eUpLeft) || (gpSet->bgOperation == eUpRight)
|| (gpSet->bgOperation == eDownLeft) || (gpSet->bgOperation == eDownRight)
|| (gpSet->bgOperation == eCenter))
{
// MemoryDC создается всегда по размеру картинки, т.е. изменение размера окна - игнорируется
}
else
{
// Смотрим дальше
if (gpSet->bgOperation == eStretch)
{
// Строго по размеру клиентской (точнее Workspace) области окна
lMaxBgWidth = rcWork.right - rcWork.left;
lMaxBgHeight = rcWork.bottom - rcWork.top;
}
else if (gpSet->bgOperation == eFit || gpSet->bgOperation == eFill)
{
lMaxBgWidth = rcWork.right - rcWork.left;
lMaxBgHeight = rcWork.bottom - rcWork.top;
// Correct aspect ratio
const BITMAPFILEHEADER* pBgImgData = pBgFile->GetBgImgData();
const BITMAPINFOHEADER* pBmp = pBgImgData ? (const BITMAPINFOHEADER*)(pBgImgData+1) : NULL;
if (pBmp
&& (rcWork.bottom - rcWork.top) > 0 && (rcWork.right - rcWork.left) > 0)
{
double ldVCon = (rcWork.right - rcWork.left) / (double)(rcWork.bottom - rcWork.top);
double ldImg = pBmp->biWidth / (double)pBmp->biHeight;
if (ldVCon > ldImg)
{
if (gpSet->bgOperation == eFit)
lMaxBgWidth = (LONG)(lMaxBgHeight * ldImg);
else
lMaxBgHeight = (LONG)(lMaxBgWidth / ldImg);
}
else
{
if (gpSet->bgOperation == eFill)
lMaxBgWidth = (LONG)(lMaxBgHeight * ldImg);
else
lMaxBgHeight = (LONG)(lMaxBgWidth / ldImg);
}
}
}
else if (gpSet->bgOperation == eTile)
{
// Max между клиентской (точнее Workspace) областью окна и размером текущего монитора
// Окно может быть растянуто на несколько мониторов, т.е. размер клиентской области может быть больше
HMONITOR hMon = MonitorFromWindow(ghWnd, MONITOR_DEFAULTTONEAREST);
MONITORINFO mon = {sizeof(MONITORINFO)};
GetMonitorInfo(hMon, &mon);
//
lMaxBgWidth = klMax(rcWork.right - rcWork.left,mon.rcMonitor.right - mon.rcMonitor.left);
lMaxBgHeight = klMax(rcWork.bottom - rcWork.top,mon.rcMonitor.bottom - mon.rcMonitor.top);
}
if (bgSize.X != lMaxBgWidth || bgSize.Y != lMaxBgHeight)
NeedBackgroundUpdate();
}
if (mb_NeedBgUpdate)
{
mb_NeedBgUpdate = false;
lbForceUpdate = true;
_ASSERTE(isMainThread());
//MSectionLock SBG; SBG.Lock(&mcs_BgImgData);
//BITMAPFILEHEADER* pImgData = mp_BgImgData;
BackgroundOp op = (BackgroundOp)gpSet->bgOperation;
const BITMAPFILEHEADER* pBgImgData = pBgFile->GetBgImgData();
BOOL lbImageExist = (pBgImgData != NULL);
//BOOL lbVConImage = FALSE;
//LONG lBgWidth = 0, lBgHeight = 0;
//CVirtualConsole* pVCon = gpConEmu->ActiveCon();
////MSectionLock SBK;
//if (apVCon && gpSet->isBgPluginAllowed)
//{
// //SBK.Lock(&apVCon->csBkImgData);
// if (apVCon->HasBackgroundImage(&lBgWidth, &lBgHeight)
// && lBgWidth && lBgHeight)
// {
// lbVConImage = lbImageExist = TRUE;
// }
//}
//mb_WasVConBgImage = lbVConImage;
if (lbImageExist)
{
mb_BgLastFade = (!bIsForeground && gpSet->isFadeInactive);
TODO("Переделать, ориентироваться только на размер картинки - неправильно");
TODO("DoubleView - скорректировать X,Y");
//if (lbVConImage)
//{
// if (lMaxBgWidth && lMaxBgHeight)
// {
// lBgWidth = lMaxBgWidth;
// lBgHeight = lMaxBgHeight;
// }
// if (!mp_Bg->CreateField(lBgWidth, lBgHeight) ||
// !apVCon->PutBackgroundImage(mp_Bg, 0,0, lBgWidth, lBgHeight))
// {
// delete mp_Bg;
// mp_Bg = NULL;
// }
//}
//else
{
const BITMAPINFOHEADER* pBmp = (const BITMAPINFOHEADER*)(pBgImgData+1);
if (!lMaxBgWidth || !lMaxBgHeight)
{
// Сюда мы можем попасть только в случае eUpLeft/eUpRight/eDownLeft/eDownRight
lMaxBgWidth = pBmp->biWidth;
lMaxBgHeight = pBmp->biHeight;
}
//LONG lImgX = 0, lImgY = 0, lImgW = lMaxBgWidth, lImgH = lMaxBgHeight;
//if ((gpSet->bgOperation == eFit || gpSet->bgOperation == eFill)
// && (rcWork.bottom - rcWork.top) > 0 && (rcWork.right - rcWork.left) > 0)
//{
// double ldVCon = (rcWork.right - rcWork.left) / (double)(rcWork.bottom - rcWork.top);
// double ldImg = pBmp->biWidth / (double)pBmp->biHeight;
// if (ldVCon > ldImg)
// {
// if (gpSet->bgOperation == eFit)
// lMaxBgWidth = lMaxBgHeight * ldImg;
// else
// lMaxBgHeight = lMaxBgWidth / ldImg;
// }
// else
// {
// if (gpSet->bgOperation == eFill)
// lMaxBgWidth = lMaxBgHeight * ldImg;
// else
// lMaxBgHeight = lMaxBgWidth / ldImg;
// }
//}
if (!CreateField(lMaxBgWidth, lMaxBgHeight) ||
!FillBackground(pBgImgData, 0,0,lMaxBgWidth,lMaxBgHeight, op, mb_BgLastFade))
{
bSucceeded = false;
}
}
}
else
{
bSucceeded = false;
}
}
pBgFile->Release();
#endif
}
else
{
if (!mb_NeedBgUpdate)
{
if ((mb_BgLastFade == bIsForeground && gpSet->isFadeInactive)
|| (!gpSet->isFadeInactive && mb_BgLastFade))
{
NeedBackgroundUpdate();
}
}
//if (mp_PluginBg == NULL)
//{
// NeedBackgroundUpdate();
//}
if (mb_NeedBgUpdate)
{
mb_NeedBgUpdate = false;
lbForceUpdate = true;
//if (!mp_PluginBg)
// mp_PluginBg = new CBackground;
mb_BgLastFade = (!bIsForeground && gpSet->isFadeInactive);
TODO("Переделать, ориентироваться только на размер картинки - неправильно");
TODO("DoubleView - скорректировать X,Y");
if (lMaxBgWidth && lMaxBgHeight)
{
lBgWidth = lMaxBgWidth;
lBgHeight = lMaxBgHeight;
}
if (!CreateField(lBgWidth, lBgHeight) ||
!PutPluginBackgroundImage(0,0, lBgWidth, lBgHeight))
{
//delete mp_PluginBg;
//mp_PluginBg = NULL;
bSucceeded = false;
}
}
// Check if the bitmap was prepared for the current Far state
if ((mp_BkImgData && pVCon)
// Don't use isFilePanel here because it is `false` when any dialog is active in Panels
&& ((!(pVCon->isEditor || pVCon->isViewer) && !(mp_BkImgData->dwDrawnPlaces & pbp_Panels))
|| (pVCon->isEditor && !(mp_BkImgData->dwDrawnPlaces & pbp_Editor))
|| (pVCon->isViewer && !(mp_BkImgData->dwDrawnPlaces & pbp_Viewer))
))
{
lbForceUpdate = false;
phBgDc = NULL;
pbgBmpSize = MakeCoord(0, 0);
goto wrap;
}
}
if (bSucceeded)
{
phBgDc = hBgDc;
pbgBmpSize = bgSize;
}
else
{
phBgDc = NULL;
pbgBmpSize = MakeCoord(0,0);
}
wrap:
return lbForceUpdate;
}
