Squashed 'third_party/allwpilib_2016/' content from commit 7f61816
Change-Id: If9d9245880859cdf580f5d7f77045135d0521ce7
git-subtree-dir: third_party/allwpilib_2016
git-subtree-split: 7f618166ed253a24629934fcf89c3decb0528a3b
diff --git a/wpilibc/shared/include/Buttons/Trigger.h b/wpilibc/shared/include/Buttons/Trigger.h
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+++ b/wpilibc/shared/include/Buttons/Trigger.h
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+/*----------------------------------------------------------------------------*/
+/* Copyright (c) FIRST 2011. All Rights Reserved.
+ */
+/* Open Source Software - may be modified and shared by FRC teams. The code */
+/* must be accompanied by the FIRST BSD license file in $(WIND_BASE)/WPILib. */
+/*----------------------------------------------------------------------------*/
+
+#ifndef __TRIGGER_H__
+#define __TRIGGER_H__
+
+#include "SmartDashboard/Sendable.h"
+#include <memory>
+
+class Command;
+
+/**
+ * This class provides an easy way to link commands to inputs.
+ *
+ * It is very easy to link a polled input to a command. For instance, you could
+ * link the trigger button of a joystick to a "score" command or an encoder
+ * reaching
+ * a particular value.
+ *
+ * It is encouraged that teams write a subclass of Trigger if they want to have
+ * something unusual (for instance, if they want to react to the user holding
+ * a button while the robot is reading a certain sensor input). For this, they
+ * only have to write the {@link Trigger#Get()} method to get the full
+ * functionality
+ * of the Trigger class.
+ *
+ * @author Brad Miller, Joe Grinstead
+ */
+class Trigger : public Sendable {
+ public:
+ Trigger() = default;
+ virtual ~Trigger() = default;
+ bool Grab();
+ virtual bool Get() = 0;
+ void WhenActive(Command *command);
+ void WhileActive(Command *command);
+ void WhenInactive(Command *command);
+ void CancelWhenActive(Command *command);
+ void ToggleWhenActive(Command *command);
+
+ virtual void InitTable(std::shared_ptr<ITable> table);
+ virtual std::shared_ptr<ITable> GetTable() const;
+ virtual std::string GetSmartDashboardType() const;
+
+ protected:
+ std::shared_ptr<ITable> m_table;
+};
+
+#endif