Signed-off-by: Peter Hutterer <[email protected]>
---
tools/xsetwacom.c | 23 +++++++++++++++++++++++
1 files changed, 23 insertions(+), 0 deletions(-)
diff --git a/tools/xsetwacom.c b/tools/xsetwacom.c
index e1f2753..a945f96 100644
--- a/tools/xsetwacom.c
+++ b/tools/xsetwacom.c
@@ -52,6 +52,27 @@ enum prop_flags {
PROP_FLAG_WRITEONLY = 4
};
+
+/**
+ * How this works:
+ * Each parameter supported by xsetwacom has a struct param_t in the global
+ * parameters[] array.
+ * For 'standard' parameters that just modify a property, the prop_* fields
+ * are set to the matching property, format and offset. The get() function
+ * then handles the retrieval of the property, the set() function handles
+ * the modification of the property.
+ *
+ * For parameters that need more than just triggering a property, the
+ * set_func and get_func point to the matching function to modify that
+ * particular parameter. example are the ButtonX parameters that call
+ * XSetDeviceButtonMapping instead of triggering a property.
+ *
+ * device_name is filled in automatically and just used to pass around the
+ * device name (since the XDevice* doesn't store this info). printformat is
+ * a flag that changes the output required, so that the -c and -s
+ * commandline arguments work.
+ */
+
typedef struct _param
{
const char *name; /* param name as specified by the user */
@@ -68,6 +89,7 @@ typedef struct _param
enum printformat printformat;
} param_t;
+/* get_func/set_func calls for special parameters */
static void map_button(Display *dpy, XDevice *dev, param_t *param, int argc,
char **argv);
static void set_mode(Display *dpy, XDevice *dev, param_t *param, int argc,
char **argv);
static void get_mode(Display *dpy, XDevice *dev, param_t *param, int argc,
char **argv);
@@ -82,6 +104,7 @@ static void get_all(Display *dpy, XDevice *dev, param_t
*param, int argc, char *
static void get_param(Display *dpy, XDevice *dev, param_t *param, int argc,
char **argv);
static void not_implemented(Display *dpy, XDevice *dev, param_t *param, int
argc, char **argv)
{
+ /* default get_func/set_func for not-implemented functionality */
printf("Not implemented.\n");
}
--
1.7.0.1
------------------------------------------------------------------------------
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