void
ColorTableAttributes::RemoveColorTable(int index)
{
if(index >= 0 && index < names.size())
{
// Determine if the color table is active.
bool isActiveContinuous, isActiveDiscrete;
isActiveContinuous = (names[index] == activeContinuous);
isActiveDiscrete = (names[index] == activeDiscrete);
// Iterate through the vector "index" times.
stringVector::iterator pos = names.begin();
for(int i = 0; i < index; ++i)
++pos;
// If pos is still a valid iterator, remove that element.
if(pos != names.end())
{
names.erase(pos);
}
// Indicate that things have changed by selecting the list.
Select(0, (void *)&names);
// erase the color table from the vector.
RemoveColorTables(index);
// If it is the active color table that was removed, reset the
// active color table to the first element.
if(isActiveContinuous)
{
if(names.size() > 0)
SetActiveContinuous(names[0]);
else
SetActiveContinuous(std::string(""));
}
if(isActiveDiscrete)
{
if(names.size() > 0)
SetActiveDiscrete(names[0]);
else
SetActiveDiscrete(std::string(""));
}
}
}
void
ColorTableAttributes::AddColorTable(const std::string &name,
const ColorControlPointList &cpts)
{
bool activeContinuous = false;
if (GetActiveContinuous() == name)
activeContinuous = true;
bool activeDiscrete = false;
if (GetActiveDiscrete() == name)
activeDiscrete = true;
// Remove the color table if it already exists in the list.
int index = GetColorTableIndex(name);
if(index != -1)
RemoveColorTable(index);
// Append the color table to the list.
names.push_back(name);
AddColorTables(cpts);
// Store the name, colortable pairs into a map.
std::map<std::string, AttributeGroup *> sortMap;
size_t i;
for(i = 0; i < names.size(); ++i)
sortMap[names[i]] = colorTables[i];
// Traverse the map, it will be sorted. Store the names and color table
// pointer back into the old vectors.
std::map<std::string, AttributeGroup *>::iterator pos;
for(i = 0, pos = sortMap.begin(); pos != sortMap.end(); ++pos, ++i)
{
names[i] = pos->first;
colorTables[i] = pos->second;
}
if (activeContinuous)
SetActiveContinuous(name);
if (activeDiscrete)
SetActiveDiscrete(name);
Select(0, (void *)&names);
}
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());
}
