Added selection status fields and removed points loaded field. It is

assumed that ROWS is the number of points loaded.  This needs to be
updated so that it is a dynamic run-time value.

1 files changed, 15 insertions, 5 deletions

diff --git a/src/model/exp004state.h b/src/model/exp004state.h
index e45f679..669e4cb 100644
--- a/src/model/exp004state.h
+++ b/src/model/exp004state.h
@@ -67,11 +67,6 @@ typedef struct
   } viewport;
 
   /*
-   * Points loaded.
-   */
-  int points;
-
-  /*
    * Buffer objects.
    */
   unsigned int buffers[1];
@@ -96,6 +91,21 @@ typedef struct
    */
   bool selection[ROWS];
 
+  /*
+   * Indicate if the user is currently defining a selection.
+   */
+  bool selecting;
+
+  /*
+   * X coordinate of mouse when selection mode initiated.
+   */
+  int select_x;
+
+  /*
+   * Y coordinate of mouse when selection mode initiated.
+   */
+  int select_y;
+
 } EXP004STATE;
 
 #endif // EXP004STATE_H