From 37d2ff64ded0786d07ea22a2c15fbe460dc8e1e5 Mon Sep 17 00:00:00 2001
From: rdb <git@rdb.name>
Date: Sun, 25 Nov 2018 23:38:07 +0100
Subject: [PATCH] putil: add id and pressure fields to PointerData

---
 panda/src/putil/pointerData.I | 54 ++++++++++++++---------------------
 panda/src/putil/pointerData.h | 19 +++++++-----
 2 files changed, 34 insertions(+), 39 deletions(-)

diff --git a/panda/src/putil/pointerData.I b/panda/src/putil/pointerData.I
index 6697c31d1a..a23b1c464b 100644
--- a/panda/src/putil/pointerData.I
+++ b/panda/src/putil/pointerData.I
@@ -11,37 +11,6 @@
  * @date 2002-07-15
  */
 
-/**
- *
- */
-INLINE PointerData::
-PointerData() {
-  _in_window = false;
-  _xpos = 0;
-  _ypos = 0;
-}
-
-/**
- *
- */
-INLINE PointerData::
-PointerData(const PointerData &copy) :
-  _in_window(copy._in_window),
-  _xpos(copy._xpos),
-  _ypos(copy._ypos)
-{
-}
-
-/**
- *
- */
-INLINE void PointerData::
-operator = (const PointerData &copy) {
-  _in_window = copy._in_window;
-  _xpos = copy._xpos;
-  _ypos = copy._ypos;
-}
-
 /**
  *
  */
@@ -59,13 +28,34 @@ get_y() const {
 }
 
 /**
- *
+ * If this returns false, the pointer is not currently present in the window
+ * and the values returned by get_x() and get_y() may not be meaningful.
  */
 INLINE bool PointerData::
 get_in_window() const {
   return _in_window;
 }
 
+/**
+ * Returns a unique identifier for this pointer.  This is for tracking
+ * individual fingers.  This value should not be assumed to have a specific
+ * meaning other than that there will not be two different pointers active
+ * simultaneously with the same identifier.
+ */
+INLINE int PointerData::
+get_id() const {
+  return _id;
+}
+
+/**
+ * Returns the pressure of the pointer.  For mice, this will be 1.0 if any
+ * button is pressed, 0.0 otherwise.
+ */
+INLINE double PointerData::
+get_pressure() const {
+  return _pressure;
+}
+
 
 INLINE std::ostream &operator << (std::ostream &out, const PointerData &md) {
   md.output(out);
diff --git a/panda/src/putil/pointerData.h b/panda/src/putil/pointerData.h
index aa3f3aeb62..ab0aee374e 100644
--- a/panda/src/putil/pointerData.h
+++ b/panda/src/putil/pointerData.h
@@ -24,24 +24,29 @@
  */
 class EXPCL_PANDA_PUTIL PointerData {
 PUBLISHED:
-  INLINE PointerData();
-  INLINE PointerData(const PointerData &copy);
-  INLINE void operator = (const PointerData &copy);
-
   INLINE double get_x() const;
   INLINE double get_y() const;
   INLINE bool get_in_window() const;
 
+public:
+  INLINE int get_id() const;
+  INLINE double get_pressure() const;
+
   void output(std::ostream &out) const;
 
+PUBLISHED:
   MAKE_PROPERTY(x, get_x);
   MAKE_PROPERTY(y, get_y);
+  MAKE_PROPERTY(id, get_id);
   MAKE_PROPERTY(in_window, get_in_window);
+  MAKE_PROPERTY(pressure, get_pressure);
 
 public:
-  bool _in_window;
-  double _xpos;
-  double _ypos;
+  bool _in_window = false;
+  double _xpos = 0.0;
+  double _ypos = 0.0;
+  double _pressure = 0.0;
+  int _id = 0;
 };
 
 INLINE std::ostream &operator << (std::ostream &out, const PointerData &md);