Moved UserAction and HardwareKey classes into their own respective header files.

Added HardwareKeySet class to manage a devices set of hardware keys.
Started implementing Keymapper class.

svn-id: r33157

1 files changed, 95 insertions, 0 deletions

diff --git a/backends/common/hardware-key.h b/backends/common/hardware-key.h
new file mode 100644
index 0000000000..de1984dc31
--- /dev/null
+++ b/backends/common/hardware-key.h
@@ -0,0 +1,95 @@
+#ifndef COMMON_HARDWAREKEY
+#define COMMON_HARDWAREKEY
+
+#include "backends/common/user-action.h"
+
+namespace Common {
+
+/**
+* Describes an available hardware key 
+*/
+struct HardwareKey {
+	/** unique id used for saving/loading to config */
+	int32 id;
+	/** Human readable description */
+	String description; 
+	/** 
+	* The KeyState that is generated by the back-end 
+	* when this hardware key is pressed.
+	*/
+	KeyState key;
+
+	UserActionCategory preferredCategory;
+	UserActionType preferredType;
+	int16 group;
+
+	HardwareKey(KeyState ks = KeyState(), String des = "",
+		UserActionCategory cat = kGenericUserActionCategory,
+		UserActionType ty = kGenericUserActionType,	int gr = 0) {
+			key = ks;
+			description = des;
+			preferredCategory = cat;
+			preferredType = ty;
+			group = gr;
+	}
+};
+
+
+/**
+ * Simple class to encapsulate a device's set of HardwareKeys.
+ * Each device should extend this and call addHardwareKey a number of times
+ * in its constructor to define the device's available keys.
+ */ 
+class HardwareKeySet {
+public:
+
+	HardwareKeySet() {}
+	~HardwareKeySet() {
+		List<HardwareKey*>::iterator it;
+		for (it = _keys.begin(); it != _keys.end(); it++)
+			delete *it;
+	}
+
+	void addHardwareKey(HardwareKey *key) {
+		checkForKey(key);
+		_keys.push_back(key);
+	}
+
+	const HardwareKey *findHardwareKey(int32 id) const {
+		List<HardwareKey*>::iterator it;
+		for (it = _keys.begin(); it != _keys.end(); it++) {
+			if ((*it)->id == id)
+				return (*it);
+		}
+		return 0;
+	}
+
+	const HardwareKey *findHardwareKey(const KeyState& keystate) const {
+		List<HardwareKey*>::iterator it;
+		for (it = _keys.begin(); it != _keys.end(); it++) {
+			if ((*it)->key == keystate)
+				return (*it);
+		}
+		return 0;
+	}
+
+
+private:
+
+	void checkForKey(HardwareKey *key) {
+		List<HardwareKey*>::iterator it;
+		for (it = _keys.begin(); it != _keys.end(); it++) {
+			if ((*it)->id == key->id)
+				error("HardwareKey with id %d already given!\n", key->id);
+			else if ((*it)->key == key->key)
+				error("HardwareKey with same KeyState already given!\n");
+		}
+	}
+
+	List<HardwareKey*> _keys;
+};
+
+
+} // end of namespace Common
+
+#endif
\ No newline at end of file