void ColorControlPointList::SetFromNode(DataNode* parentNode)
{
if (parentNode == 0)
return;
DataNode* searchNode = parentNode->GetNode("ColorControlPointList");
if (searchNode == 0)
return;
DataNode* node;
DataNode** children;
// Clear all the ColorControlPoints.
ClearControlPoints();
//
// Try setting the colors from the compact color and position vectors.
//
bool colorsAreSet = false;
DataNode* compactColorNode = searchNode->GetNode("compactColors");
DataNode* compactPositionNode = searchNode->GetNode("compactPositions");
if (compactColorNode != 0 && compactPositionNode != 0)
{
const unsignedCharVector& colors = compactColorNode->AsUnsignedCharVector();
const floatVector& positions = compactPositionNode->AsFloatVector();
unsigned int npts = static_cast<unsigned int>(colors.size() / 4);
if (npts > static_cast<unsigned int>(positions.size()))
npts = static_cast<unsigned int>(positions.size());
if (npts > 0)
{
for (unsigned int i = 0; i < npts; ++i)
{
int index = i << 2;
AddControlPoints(ColorControlPoint(
positions[i], colors[index], colors[index + 1], colors[index + 2], colors[index + 3]));
}
colorsAreSet = true;
}
}
if (!colorsAreSet)
{
// Go through all of the children and construct a new
// ColorControlPoint for each one of them.
children = searchNode->GetChildren();
for (int i = 0; i < searchNode->GetNumChildren(); ++i)
{
if (children[i]->GetKey() == std::string("ColorControlPoint"))
{
ColorControlPoint temp;
temp.SetFromNode(children[i]);
AddControlPoints(temp);
}
}
}
if ((node = searchNode->GetNode("smoothingFlag")) != 0)
SetSmoothingFlag(node->AsBool());
if ((node = searchNode->GetNode("equalSpacingFlag")) != 0)
SetEqualSpacingFlag(node->AsBool());
if ((node = searchNode->GetNode("discreteFlag")) != 0)
SetDiscreteFlag(node->AsBool());
if ((node = searchNode->GetNode("externalFlag")) != 0)
SetExternalFlag(node->AsBool());
}
void
ColorTableAttributes::SetFromNode(DataNode *parentNode)
{
if(parentNode == 0)
return;
DataNode *searchNode = parentNode->GetNode("ColorTableAttributes");
if(searchNode == 0)
return;
// Look for the number of color tables.
DataNode *node = 0;
if((node = searchNode->GetNode("Ntables")) != 0)
{
char tmp[100];
int ntables = node->AsInt();
// Look for ntables color table nodes.
for(int i = 0; i < ntables; ++i)
{
SNPRINTF(tmp, 100, "table%02d", i);
if((node = searchNode->GetNode(tmp)) != 0)
{
DataNode *nameNode = node->GetNode("ctName");
DataNode *pointNode = node->GetNode("controlPts");
// If we have the name node and the pointNode, we can add a
// color table.
if(nameNode && pointNode)
{
ColorControlPointList ccpl;
// Try and set the equal flag.
DataNode *tmpNode;
if((tmpNode = node->GetNode("equal")) != 0)
ccpl.SetEqualSpacingFlag(tmpNode->AsBool());
// Try and set the smooth flag.
if((tmpNode = node->GetNode("smooth")) != 0)
ccpl.SetSmoothingFlag(tmpNode->AsBool());
if((tmpNode = node->GetNode("discrete")) != 0)
ccpl.SetDiscreteFlag(tmpNode->AsBool());
// Set the color control points.
floatVector fvec = pointNode->AsFloatVector();
for(size_t j = 0; j < fvec.size() / 4; ++j)
{
// Create a control point based on the values
// in the float vector.
int index = j * 4;
ColorControlPoint cpt(fvec[index],
(unsigned char)(fvec[index+1]),
(unsigned char)(fvec[index+2]),
(unsigned char)(fvec[index+3]),
255);
ccpl.AddControlPoints(cpt);
}
// If the color table is already in the list, remove it.
// Then add the new color table to the list.
RemoveColorTable(nameNode->AsString());
AddColorTable(nameNode->AsString(), ccpl);
}
}
} // end for i
}
if((node = searchNode->GetNode("activeContinuous")) != 0)
SetActiveContinuous(node->AsString());
if((node = searchNode->GetNode("activeDiscrete")) != 0)
SetActiveDiscrete(node->AsString());
// For older version compatibility...
if((node = searchNode->GetNode("activeColorTable")) != 0)
SetActiveContinuous(node->AsString());
}
void
ColorTableAttributes::SetFromNode(DataNode *parentNode)
{
if(parentNode == 0)
return;
DataNode *searchNode = parentNode->GetNode("ColorTableAttributes");
if(searchNode == 0)
return;
// Look for the number of color tables.
DataNode *node = 0;
if((node = searchNode->GetNode("Ntables")) != 0)
{
char tmp[100];
int ntables = node->AsInt();
// Look for ntables color table nodes.
for(int i = 0; i < ntables; ++i)
{
SNPRINTF(tmp, 100, "table%02d", i);
if((node = searchNode->GetNode(tmp)) != 0)
{
DataNode *nameNode = node->GetNode("ctName");
DataNode *pointNode = node->GetNode("controlPts");
DataNode *colorsHaveOpacity = node->GetNode("colorsHaveOpacity");
bool readAlpha = false;
if (colorsHaveOpacity != NULL)
readAlpha = true;
// If we have the name node and the pointNode, we can add a
// color table.
if(nameNode && pointNode)
{
ColorControlPointList ccpl;
// Try and set the equal flag.
DataNode *tmpNode;
if((tmpNode = node->GetNode("equal")) != 0)
ccpl.SetEqualSpacingFlag(tmpNode->AsBool());
// Try and set the smooth flag. (old way)
if((tmpNode = node->GetNode("smooth")) != 0)
ccpl.SetSmoothing(tmpNode->AsBool()?ColorControlPointList::Linear:ColorControlPointList::None);
// (new way)
if((tmpNode = node->GetNode("smoothing")) != 0)
ccpl.SetSmoothing(static_cast<ColorControlPointList::SmoothingMethod>(tmpNode->AsInt()));
if((tmpNode = node->GetNode("discrete")) != 0)
ccpl.SetDiscreteFlag(tmpNode->AsBool());
if((tmpNode = node->GetNode("category")) != 0)
ccpl.SetCategoryName(tmpNode->AsString());
else
ccpl.SetCategoryName("Standard");
// Set the color control points.
floatVector fvec = pointNode->AsFloatVector();
int nvalsPerColor = 4;
if (readAlpha)
nvalsPerColor = 5;
for(size_t j = 0; j < fvec.size() / nvalsPerColor; ++j)
{
// Create a control point based on the values
// in the float vector.
int index = j * nvalsPerColor;
ColorControlPoint cpt(fvec[index],
(unsigned char)(fvec[index+1]),
(unsigned char)(fvec[index+2]),
(unsigned char)(fvec[index+3]),
(readAlpha
? (unsigned char)(fvec[index+4])
: 255));
ccpl.AddControlPoints(cpt);
}
// If the color table is already in the list, remove it.
// Then add the new color table to the list.
RemoveColorTable(nameNode->AsString());
AddColorTable(nameNode->AsString(), ccpl);
}
}
} // end for i
}
if((node = searchNode->GetNode("activeContinuous")) != 0)
SetActiveContinuous(node->AsString());
if((node = searchNode->GetNode("activeDiscrete")) != 0)
SetActiveDiscrete(node->AsString());
if((node = searchNode->GetNode("groupingFlag")) != 0)
SetGroupingFlag(node->AsBool());
// For older version compatibility...
if((node = searchNode->GetNode("activeColorTable")) != 0)
SetActiveContinuous(node->AsString());
}
