void ShapeRef::transformConnectionPinPositions(
ShapeTransformationType transform)
{
for (ShapeConnectionPinSet::iterator curr =
m_connection_pins.begin(); curr != m_connection_pins.end(); ++curr)
{
ShapeConnectionPin *pin = *curr;
double& xPortionOffset = pin->m_x_portion_offset;
double& yPortionOffset = pin->m_y_portion_offset;
ConnDirFlags& visDirs = pin->m_visibility_directions;
double tmpOffset;
// Translate to Origin.
xPortionOffset -= 0.5;
yPortionOffset -= 0.5;
// Number of clockwise 90degree rotations;
unsigned int rotationN = 0;
switch (transform)
{
case TransformationType_CW90:
rotationN = 3;
// Y <- inverse X, X <- inverse Y
tmpOffset = yPortionOffset;
yPortionOffset = xPortionOffset;
xPortionOffset = -tmpOffset;
break;
case TransformationType_CW180:
rotationN = 2;
// Y <- inverse Y, X <- inverse X
yPortionOffset = -yPortionOffset;
xPortionOffset = -xPortionOffset;
break;
case TransformationType_CW270:
rotationN = 1;
// Y <- X, X <- Y
tmpOffset = yPortionOffset;
yPortionOffset = -xPortionOffset;
xPortionOffset = tmpOffset;
break;
case TransformationType_FlipX:
// Y <- Y, X <- inverse X
xPortionOffset = -xPortionOffset;
break;
case TransformationType_FlipY:
// X <- inverse X, Y <- Y
yPortionOffset = -yPortionOffset;
break;
}
// Translate back.
xPortionOffset += 0.5;
yPortionOffset += 0.5;
if ( (visDirs & ConnDirAll) && (visDirs != ConnDirAll) )
{
// Visibility is set, but not in all directions.
const unsigned int dirU = 0;
const unsigned int dirR = 1;
const unsigned int dirD = 2;
const unsigned int dirL = 3;
bool visInDir[4] = { false };
if (visDirs & ConnDirUp) visInDir[dirU] = true;
if (visDirs & ConnDirRight) visInDir[dirR] = true;
if (visDirs & ConnDirDown) visInDir[dirD] = true;
if (visDirs & ConnDirLeft) visInDir[dirL] = true;
if (transform == TransformationType_FlipY)
{
bool tmpBool = visInDir[dirU];
visInDir[dirU] = visInDir[dirD];
visInDir[dirD] = tmpBool;
}
else if (transform == TransformationType_FlipX)
{
bool tmpBool = visInDir[dirL];
visInDir[dirL] = visInDir[dirR];
visInDir[dirR] = tmpBool;
}
visDirs = ConnDirNone;
if (visInDir[(rotationN + dirU) % 4]) visDirs |= ConnDirUp;
if (visInDir[(rotationN + dirR) % 4]) visDirs |= ConnDirRight;
if (visInDir[(rotationN + dirD) % 4]) visDirs |= ConnDirDown;
if (visInDir[(rotationN + dirL) % 4]) visDirs |= ConnDirLeft;
}
pin->updatePositionAndVisibility();
m_router->modifyConnectionPin(pin);
}
}
