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37 * Implements classes and functions from helptopic.h.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
40 * \ingroup module_onlinehelp
44 #include "helptopic.h"
49 #include "gromacs/onlinehelp/helpformat.h"
50 #include "gromacs/onlinehelp/helpwritercontext.h"
51 #include "gromacs/utility/exceptions.h"
52 #include "gromacs/utility/file.h"
53 #include "gromacs/utility/gmxassert.h"
54 #include "gromacs/utility/stringutil.h"
59 /********************************************************************
60 * AbstractSimpleHelpTopic
63 bool AbstractSimpleHelpTopic::hasSubTopics() const
68 const HelpTopicInterface *
69 AbstractSimpleHelpTopic::findSubTopic(const char * /* name */) const
74 void AbstractSimpleHelpTopic::writeHelp(const HelpWriterContext &context) const
76 context.writeTextBlock(helpText());
79 /********************************************************************
80 * AbstractCompositeHelpTopic::Impl
84 * Private implementation class for AbstractCompositeHelpTopic.
86 * \ingroup module_onlinehelp
88 class AbstractCompositeHelpTopic::Impl
91 //! Container for mapping subtopic names to help topic objects.
92 typedef std::map<std::string, HelpTopicPointer> SubTopicMap;
95 * Maps subtopic names to help topic objects.
97 * Owns the contained subtopics.
99 SubTopicMap subtopics_;
102 /********************************************************************
103 * AbstractCompositeHelpTopic
106 AbstractCompositeHelpTopic::AbstractCompositeHelpTopic()
111 AbstractCompositeHelpTopic::~AbstractCompositeHelpTopic()
115 bool AbstractCompositeHelpTopic::hasSubTopics() const
117 return !impl_->subtopics_.empty();
120 const HelpTopicInterface *
121 AbstractCompositeHelpTopic::findSubTopic(const char *name) const
123 Impl::SubTopicMap::const_iterator topic = impl_->subtopics_.find(name);
124 if (topic == impl_->subtopics_.end())
128 return topic->second.get();
131 void AbstractCompositeHelpTopic::writeHelp(const HelpWriterContext &context) const
133 context.writeTextBlock(helpText());
134 writeSubTopicList(context, "\nAvailable subtopics:");
138 AbstractCompositeHelpTopic::writeSubTopicList(const HelpWriterContext &context,
139 const std::string &title) const
141 if (context.outputFormat() != eHelpOutputFormat_Console)
143 // TODO: Implement once the situation with Redmine issue #969 is more
145 GMX_THROW(NotImplementedError(
146 "Subtopic listing is not implemented for this output format"));
148 int maxNameLength = 0;
149 Impl::SubTopicMap::const_iterator topic;
150 for (topic = impl_->subtopics_.begin(); topic != impl_->subtopics_.end(); ++topic)
152 const char *title = topic->second->title();
153 if (title == NULL || title[0] == '\0')
157 int nameLength = static_cast<int>(topic->first.length());
158 if (nameLength > maxNameLength)
160 maxNameLength = nameLength;
163 if (maxNameLength == 0)
167 File &file = context.outputFile();
168 TextTableFormatter formatter;
169 formatter.addColumn(NULL, maxNameLength + 1, false);
170 formatter.addColumn(NULL, 72 - maxNameLength, true);
171 formatter.setFirstColumnIndent(4);
172 file.writeLine(title);
173 for (topic = impl_->subtopics_.begin(); topic != impl_->subtopics_.end(); ++topic)
175 const char *name = topic->first.c_str();
176 const char *title = topic->second->title();
177 if (title != NULL && title[0] != '\0')
180 formatter.addColumnLine(0, name);
181 formatter.addColumnLine(1, title);
182 file.writeString(formatter.formatRow());
188 void AbstractCompositeHelpTopic::addSubTopic(HelpTopicPointer topic)
190 GMX_ASSERT(impl_->subtopics_.find(topic->name()) == impl_->subtopics_.end(),
191 "Attempted to register a duplicate help topic name");
192 impl_->subtopics_.insert(std::make_pair(std::string(topic->name()),