/**
* SetToTransformFunction is essentially a giant switch statement that fans
* out to many smaller helper functions.
*/
void
nsStyleTransformMatrix::SetToTransformFunction(const nsCSSValue::Array * aData,
nsStyleContext* aContext,
nsPresContext* aPresContext,
PRBool& aCanStoreInRuleTree)
{
NS_PRECONDITION(aData, "Why did you want to get data from a null array?");
NS_PRECONDITION(aContext, "Need a context for unit conversion!");
NS_PRECONDITION(aPresContext, "Need a context for unit conversion!");
/* Reset the matrix to the identity so that each subfunction can just
* worry about its own components.
*/
SetToIdentity();
/* Get the keyword for the transform. */
nsAutoString keyword;
aData->Item(0).GetStringValue(keyword);
switch (nsCSSKeywords::LookupKeyword(keyword)) {
case eCSSKeyword_translatex:
ProcessTranslateX(mDelta, mX, aData, aContext, aPresContext,
aCanStoreInRuleTree);
break;
case eCSSKeyword_translatey:
ProcessTranslateY(mDelta, mY, aData, aContext, aPresContext,
aCanStoreInRuleTree);
break;
case eCSSKeyword_translate:
ProcessTranslate(mDelta, mX, mY, aData, aContext, aPresContext,
aCanStoreInRuleTree);
break;
case eCSSKeyword_scalex:
ProcessScaleX(mMain, aData);
break;
case eCSSKeyword_scaley:
ProcessScaleY(mMain, aData);
break;
case eCSSKeyword_scale:
ProcessScale(mMain, aData);
break;
case eCSSKeyword_skewx:
ProcessSkewX(mMain, aData);
break;
case eCSSKeyword_skewy:
ProcessSkewY(mMain, aData);
break;
case eCSSKeyword_skew:
ProcessSkew(mMain, aData);
break;
case eCSSKeyword_rotate:
ProcessRotate(mMain, aData);
break;
case eCSSKeyword_matrix:
ProcessMatrix(mMain, mDelta, mX, mY, aData, aContext, aPresContext,
aCanStoreInRuleTree);
break;
default:
NS_NOTREACHED("Unknown transform function!");
}
}
// Main function of this class decodes gesture information
// in:
// hWnd window handle
// wParam message parameter (message-specific)
// lParam message parameter (message-specific)
bool CGestures::ProcessGestureMessage(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam, LRESULT& lResult)
{
if ((uMsg != WM_GESTURENOTIFY) && (uMsg != WM_GESTURE))
return false;
if (!_isGestures)
{
_ASSERTE(_isGestures);
gpConEmu->LogString(L"Gesture message received but not allowed, skipping");
return false;
}
if (uMsg == WM_GESTURENOTIFY)
{
// This is the right place to define the list of gestures that this
// application will support. By populating GESTURECONFIG structure
// and calling SetGestureConfig function. We can choose gestures
// that we want to handle in our application. In this app we
// decide to handle all gestures.
GESTURECONFIG gc[] = {
{GID_ZOOM, GC_ZOOM},
{GID_ROTATE, GC_ROTATE},
{GID_PAN,
GC_PAN|GC_PAN_WITH_GUTTER|GC_PAN_WITH_INERTIA,
GC_PAN_WITH_SINGLE_FINGER_VERTICALLY|GC_PAN_WITH_SINGLE_FINGER_HORIZONTALLY
},
{GID_PRESSANDTAP, GC_PRESSANDTAP},
{GID_TWOFINGERTAP, GC_TWOFINGERTAP},
};
BOOL bResult = _SetGestureConfig(hWnd, 0, countof(gc), gc, sizeof(GESTURECONFIG));
DWORD dwErr = GetLastError();
if (gpSetCls->isAdvLogging)
{
wchar_t szNotify[60];
_wsprintf(szNotify, SKIPLEN(countof(szNotify)) L"SetGestureConfig -> %u,%u", bResult, dwErr);
gpConEmu->LogString(szNotify);
}
if (!bResult)
{
DisplayLastError(L"Error in execution of SetGestureConfig", dwErr);
}
lResult = ::DefWindowProc(hWnd, WM_GESTURENOTIFY, wParam, lParam);
return true;
}
// Остался только WM_GESTURE
Assert(uMsg==WM_GESTURE);
// helper variables
POINT ptZoomCenter;
double k;
GESTUREINFO gi = {sizeof(gi)};
// Checking for compiler alignment errors
if (gi.cbSize != WIN3264TEST(48,56))
{
// Struct member alignment must be 8bytes even on x86
Assert(sizeof(GESTUREINFO)==WIN3264TEST(48,56));
_isGestures = false;
return false;
}
BOOL bResult = _GetGestureInfo((HGESTUREINFO)lParam, &gi);
if (!bResult)
{
//_ASSERT(L"_GetGestureInfo failed!" && 0);
DWORD dwErr = GetLastError();
DisplayLastError(L"Error in execution of _GetGestureInfo", dwErr);
return FALSE;
}
#ifdef USE_DUMPGEST
bool bLog = (gpSetCls->isAdvLogging >= 2);
UNREFERENCED_PARAMETER(bLog);
bLog = true;
#endif
#define DUMPGEST(tp) DumpGesture(tp, gi)
//#ifdef USE_DUMPGEST
// wchar_t szDump[256];
// #define DUMPGEST(tp)
// _wsprintf(szDump, SKIPLEN(countof(szDump))
// L"Gesture(x%08X {%i,%i} %s",
// (DWORD)gi.hwndTarget, gi.ptsLocation.x, gi.ptsLocation.y,
// tp);
// if (gi.dwID==GID_PRESSANDTAP) {
// DWORD h = LODWORD(gi.ullArguments); _wsprintf(szDump+_tcslen(szDump), SKIPLEN(32)
// L" Dist={%i,%i}", (int)(short)LOWORD(h), (int)(short)HIWORD(h)); }
// if (gi.dwID==GID_ROTATE) {
// DWORD h = LODWORD(gi.ullArguments); _wsprintf(szDump+_tcslen(szDump), SKIPLEN(32)
// L" %i", (int)LOWORD(h)); }
// if (gi.dwFlags&GF_BEGIN) wcscat_c(szDump, L" GF_BEGIN");
// if (gi.dwFlags&GF_END) wcscat_c(szDump, L" GF_END");
// if (gi.dwFlags&GF_INERTIA) { wcscat_c(szDump, L" GF_INERTIA");
// DWORD h = HIDWORD(gi.ullArguments); _wsprintf(szDump+_tcslen(szDump), SKIPLEN(32)
// L" {%i,%i}", (int)(short)LOWORD(h), (int)(short)HIWORD(h)); }
// wcscat_c(szDump, L")\n");
// DEBUGSTR(szDump)
//#else
//#define DUMPGEST(s)
//#endif
switch (gi.dwID)
{
case GID_BEGIN:
DUMPGEST(L"GID_BEGIN");
break;
case GID_END:
DUMPGEST(L"GID_END");
break;
case GID_ZOOM:
DUMPGEST(L"GID_ZOOM");
if (gi.dwFlags & GF_BEGIN)
{
_dwArguments = LODWORD(gi.ullArguments);
_ptFirst.x = gi.ptsLocation.x;
_ptFirst.y = gi.ptsLocation.y;
ScreenToClient(hWnd,&_ptFirst);
}
else
{
// We read here the second point of the gesture. This is middle point between
// fingers in this new position.
_ptSecond.x = gi.ptsLocation.x;
_ptSecond.y = gi.ptsLocation.y;
ScreenToClient(hWnd,&_ptSecond);
// We have to calculate zoom center point
ptZoomCenter.x = (_ptFirst.x + _ptSecond.x)/2;
ptZoomCenter.y = (_ptFirst.y + _ptSecond.y)/2;
// The zoom factor is the ratio between the new and the old distance.
// The new distance between two fingers is stored in gi.ullArguments
// (lower DWORD) and the old distance is stored in _dwArguments.
k = (double)(LODWORD(gi.ullArguments))/(double)(_dwArguments);
// Now we process zooming in/out of the object
ProcessZoom(hWnd, k, ptZoomCenter.x, ptZoomCenter.y);
// Now we have to store new information as a starting information
// for the next step in this gesture.
_ptFirst = _ptSecond;
_dwArguments = LODWORD(gi.ullArguments);
}
break;
case GID_PAN:
DUMPGEST(L"GID_PAN");
if (gi.dwFlags & GF_BEGIN)
{
_ptFirst.x = gi.ptsLocation.x;
_ptFirst.y = gi.ptsLocation.y;
_ptBegin.x = gi.ptsLocation.x;
_ptBegin.y = gi.ptsLocation.y;
ScreenToClient(hWnd, &_ptFirst);
}
else
{
// We read the second point of this gesture. It is a middle point
// between fingers in this new position
_ptSecond.x = gi.ptsLocation.x;
_ptSecond.y = gi.ptsLocation.y;
ScreenToClient(hWnd, &_ptSecond);
if (!(gi.dwFlags & (GF_END/*|GF_INERTIA*/)))
{
// We apply move operation of the object
if (ProcessMove(hWnd, _ptSecond.x-_ptFirst.x, _ptSecond.y-_ptFirst.y))
{
// We have to copy second point into first one to prepare
// for the next step of this gesture.
_ptFirst = _ptSecond;
}
}
}
break;
case GID_ROTATE:
DUMPGEST(L"GID_ROTATE");
if (gi.dwFlags & GF_BEGIN)
{
_inRotate = false;
_dwArguments = LODWORD(gi.ullArguments); // Запомним начальный угол
}
else
{
_ptFirst.x = gi.ptsLocation.x;
_ptFirst.y = gi.ptsLocation.y;
ScreenToClient(hWnd, &_ptFirst);
// Пока угол не станет достаточным для смены таба - игнорируем
if (ProcessRotate(hWnd,
LODWORD(gi.ullArguments) - _dwArguments,
_ptFirst.x,_ptFirst.y, ((gi.dwFlags & GF_END) == GF_END)))
{
_dwArguments = LODWORD(gi.ullArguments);
}
}
break;
case GID_TWOFINGERTAP:
DUMPGEST(L"GID_TWOFINGERTAP");
_ptFirst.x = gi.ptsLocation.x;
_ptFirst.y = gi.ptsLocation.y;
ScreenToClient(hWnd,&_ptFirst);
ProcessTwoFingerTap(hWnd, _ptFirst.x, _ptFirst.y, LODWORD(gi.ullArguments));
break;
case GID_PRESSANDTAP:
DUMPGEST(L"GID_PRESSANDTAP");
if (gi.dwFlags & GF_BEGIN)
{
_ptFirst.x = gi.ptsLocation.x;
_ptFirst.y = gi.ptsLocation.y;
ScreenToClient(hWnd,&_ptFirst);
DWORD nDelta = LODWORD(gi.ullArguments);
short nDeltaX = (short)LOWORD(nDelta);
short nDeltaY = (short)HIWORD(nDelta);
ProcessPressAndTap(hWnd, _ptFirst.x, _ptFirst.y, nDeltaX, nDeltaY);
}
break;
default:
DUMPGEST(L"GID_<UNKNOWN>");
}
_CloseGestureInfoHandle((HGESTUREINFO)lParam);
return TRUE;
}