X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Finput%2Fdevice.h;h=e80029054548fe82c0a985bb2690b23c6773021c;hb=bc1a38d6d2c966a6aee74e483ca7a7d37a56909e;hp=e356bea86a4639cc5280d0a974eb6af3a8f005ab;hpb=5627c06b70fe2e8e926ed8d1d2d3fff0a33a503f;p=libs%2Fgui.git

diff --git a/source/input/device.h b/source/input/device.h
index e356bea..e800290 100644
--- a/source/input/device.h
+++ b/source/input/device.h
@@ -3,15 +3,34 @@
 
 #include <string>
 #include <vector>
+#include <stdexcept>
 #include <sigc++/signal.h>
+#include <msp/strings/lexicalcast.h>
 
 namespace Msp {
 namespace Input {
 
+class device_not_available: public std::runtime_error
+{
+public:
+	device_not_available(const std::string &w): std::runtime_error(w) { }
+};
+
+
+enum DeviceType
+{
+	UNSPECIFIED,
+	KEYBOARD,
+	MOUSE,
+	TOUCH_SURFACE,
+	GAME_CONTROLLER
+};
+
+
 /**
 Base class for input devices.  Input devices have two types of controls:
 buttons and axes.  Buttons are either on or off.  Axes have a floating point
-value in the range [-1, 1].
+value nominally in the range [-1, 1].
 
 Event handlers return a boolean indicating whether the event is considered
 processed.  If a handler returns true, no further handlers are invoked.
@@ -38,15 +57,19 @@ public:
 	sigc::signal<bool, unsigned, float, float>::accumulated<EventAccumulator> signal_axis_motion;
 
 protected:
+	DeviceType type = UNSPECIFIED;
 	std::string name;
 	std::vector<char> buttons;
 	std::vector<float> axes;
 
-	Device();
+	Device(DeviceType);
 public:
 	virtual ~Device();
 
+	DeviceType get_type() const { return type; }
 	const std::string &get_name() const { return name; }
+	virtual Device *find_subdevice(DeviceType, unsigned = 0);
+	virtual Device *find_subdevice(const std::string &);
 	bool get_button_state(unsigned) const;
 	float get_axis_value(unsigned) const;
 
@@ -57,6 +80,10 @@ protected:
 	void set_axis_value(unsigned, float, bool);
 };
 
+
+void operator>>(const LexicalConverter &, DeviceType &);
+void operator<<(LexicalConverter &, DeviceType);
+
 } // namespace Input
 } // namespace Msp