[gnome-settings-daemon] wacom: Add mouse button to physical button mapping

[Bastien Nocera <hadess src gnome org>]

commit b72a36fd344253de0a6a8a647481820c3363c7fb
Author: Bastien Nocera <hadess hadess net>
Date:   Mon Feb 13 18:12:31 2012 +0000

    wacom: Add mouse button to physical button mapping
    
    From the mouse button number to the physical name of the button,
    with its type, and what we should do with it, in one easy function.

 plugins/wacom/gsd-wacom-device.c |   74 ++++++++++++++++++++++++++++++++++++++
 plugins/wacom/gsd-wacom-device.h |    3 ++
 2 files changed, 77 insertions(+), 0 deletions(-)
---
diff --git a/plugins/wacom/gsd-wacom-device.c b/plugins/wacom/gsd-wacom-device.c
index de0886d..a1f43c3 100644
--- a/plugins/wacom/gsd-wacom-device.c
+++ b/plugins/wacom/gsd-wacom-device.c
@@ -1492,6 +1492,80 @@ gsd_wacom_device_get_buttons (GsdWacomDevice *device)
 	return g_list_copy (device->priv->buttons);
 }
 
+static GsdWacomTabletButton *
+find_button_with_id (GsdWacomDevice *device,
+		     const char     *id)
+{
+	GList *l;
+
+	for (l = device->priv->buttons; l != NULL; l = l->next) {
+		GsdWacomTabletButton *button = l->data;
+
+		if (g_strcmp0 (button->id, id) == 0)
+			return button;
+	}
+	return NULL;
+}
+
+GsdWacomTabletButton *
+gsd_wacom_device_get_button (GsdWacomDevice   *device,
+			     int               button,
+			     GtkDirectionType *dir)
+{
+	if (button <= 26) {
+		char *id;
+		GsdWacomTabletButton *ret;
+		int physical_button;
+
+		/* mouse_button = physical_button < 4 ? physical_button : physical_button + 4 */
+		if (button > 4)
+			physical_button = button - 4;
+		else
+			physical_button = button;
+
+		id = g_strdup_printf ("button%c", 'A' + physical_button - 1);
+		ret = find_button_with_id (device, id);
+		g_free (id);
+
+		return ret;
+	}
+
+	switch (button) {
+	case 90:
+	case 92:
+	case 94:
+	case 96:
+		*dir = GTK_DIR_UP;
+		break;
+	case 91:
+	case 93:
+	case 95:
+	case 97:
+		*dir = GTK_DIR_DOWN;
+		break;
+	default:
+		;;
+	}
+
+	/* FIXME handle the mode */
+	switch (button) {
+	case 90:
+	case 91:
+		return find_button_with_id (device, "left-ring-mode-1");
+	case 92:
+	case 93:
+		return find_button_with_id (device, "right-ring-mode-1");
+	case 94:
+	case 95:
+		return find_button_with_id (device, "left-strip-mode-1");
+	case 96:
+	case 97:
+		return find_button_with_id (device, "right-strip-mode-1");
+	default:
+		return NULL;
+	}
+}
+
 GsdWacomDevice *
 gsd_wacom_device_create_fake (GsdWacomDeviceType  type,
 			      const char         *name,
diff --git a/plugins/wacom/gsd-wacom-device.h b/plugins/wacom/gsd-wacom-device.h
index 56ecbeb..0c76e05 100644
--- a/plugins/wacom/gsd-wacom-device.h
+++ b/plugins/wacom/gsd-wacom-device.h
@@ -144,6 +144,9 @@ GsdWacomDeviceType gsd_wacom_device_get_device_type (GsdWacomDevice *device);
 gint           * gsd_wacom_device_get_area          (GsdWacomDevice *device);
 const char     * gsd_wacom_device_type_to_string    (GsdWacomDeviceType type);
 GList          * gsd_wacom_device_get_buttons       (GsdWacomDevice *device);
+GsdWacomTabletButton *gsd_wacom_device_get_button   (GsdWacomDevice   *device,
+						     int               button,
+						     GtkDirectionType *dir);
 
 /* Helper and debug functions */
 GsdWacomDevice * gsd_wacom_device_create_fake (GsdWacomDeviceType  type,