GP2XWIZ: Refactor backend.

* Add support for TouchScreen 'Tap Modes'
  Left Click, Right Click and Hover.
* Rename OSystem_GP2XWIZ to OSystem_GPH to 
  start the work on supporting a unified 
  backend codebase for the GP2X, Wiz and
  Caanoo.
* Sort out bugs in Caanoo input code.
* Rework GP2XWiz input code to support
  switching new TouchScreen modes.

svn-id: r52619

1 files changed, 25 insertions, 0 deletions

diff --git a/backends/platform/gp2xwiz/gp2xwiz-hw.cpp b/backends/platform/gp2xwiz/gp2xwiz-hw.cpp
index bc1aa00ce4..f7cc716df0 100644
--- a/backends/platform/gp2xwiz/gp2xwiz-hw.cpp
+++ b/backends/platform/gp2xwiz/gp2xwiz-hw.cpp
@@ -82,3 +82,28 @@ void mixerMoveVolume(int direction) {
 }
 
 } /* namespace WIZ_HW */
+
+namespace GPH {
+
+enum {
+	/* Touchscreen TapMode */
+	TAPMODE_LEFT		= 0,
+	TAPMODE_RIGHT		= 1,
+	TAPMODE_HOVER		= 2
+};
+
+int tapmodeLevel = TAPMODE_LEFT;
+
+void ToggleTapMode() {
+	if (tapmodeLevel == TAPMODE_LEFT) {
+		tapmodeLevel = TAPMODE_RIGHT;
+	} else if (tapmodeLevel == TAPMODE_RIGHT) {
+		tapmodeLevel = TAPMODE_HOVER;
+	} else if (tapmodeLevel == TAPMODE_HOVER) {
+		tapmodeLevel = TAPMODE_LEFT;
+	} else {
+		tapmodeLevel = TAPMODE_LEFT;
+    }
+}
+
+} /* namespace GPH */