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https://github.com/wpilibsuite/allwpilib
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f89c5e150f
Also make sure table listeners stop listening in their destructors. This might be better handled by moving the table itself into ITableListener and providing cleanup functionality there. A submodule is used to pull in ntcore. Change-Id: I3031c1a768595cf0f8754c47e15cd423e2dbcce5
73 lines
2.4 KiB
C++
73 lines
2.4 KiB
C++
/*----------------------------------------------------------------------------*/
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/* Copyright (c) FIRST 2011. All Rights Reserved.
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*/
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/* Open Source Software - may be modified and shared by FRC teams. The code */
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/* must be accompanied by the FIRST BSD license file in $(WIND_BASE)/WPILib. */
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/*----------------------------------------------------------------------------*/
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#include "SmartDashboard/SendableChooser.h"
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#include <stdio.h>
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static const std::string kDefault = "default";
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static const std::string kOptions = "options";
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static const std::string kSelected = "selected";
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/**
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* Adds the given object to the list of options. On the {@link SmartDashboard}
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* on the desktop,
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* the object will appear as the given name.
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* @param name the name of the option
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* @param object the option
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*/
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void SendableChooser::AddObject(const std::string &name, void *object) {
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m_choices[name] = object;
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}
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/**
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* Add the given object to the list of options and marks it as the default.
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* Functionally, this is very close to {@link SendableChooser#AddObject(const
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* char *name, void *object) AddObject(...)}
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* except that it will use this as the default option if none other is
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* explicitly selected.
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* @param name the name of the option
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* @param object the option
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*/
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void SendableChooser::AddDefault(const std::string &name, void *object) {
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m_defaultChoice = name;
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AddObject(name, object);
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}
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/**
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* Returns the selected option. If there is none selected, it will return the
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* default. If there is none selected
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* and no default, then it will return {@code nullptr}.
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* @return the option selected
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*/
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void *SendableChooser::GetSelected() {
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std::string selected = m_table->GetString(kSelected, m_defaultChoice);
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if (selected == "")
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return nullptr;
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else
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return m_choices[selected];
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}
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void SendableChooser::InitTable(std::shared_ptr<ITable> subtable) {
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std::vector<std::string> keys;
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m_table = subtable;
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if (m_table != nullptr) {
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std::map<std::string, void *>::iterator iter;
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for (iter = m_choices.begin(); iter != m_choices.end(); iter++) {
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keys.push_back(iter->first);
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}
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m_table->PutValue(kOptions, nt::Value::MakeStringArray(std::move(keys)));
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m_table->PutString(kDefault, m_defaultChoice);
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}
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}
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std::shared_ptr<ITable> SendableChooser::GetTable() const { return m_table; }
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std::string SendableChooser::GetSmartDashboardType() const {
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return "String Chooser";
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}
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