test intersection of (displayable) widgets

git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@996 3ae390bd-cb1e-0410-b409-cd5a39f66f1f

1 files changed, 9 insertions, 0 deletions

diff --git a/widget.h b/widget.h
index 4f943b2..2fe7088 100644
--- a/widget.h
+++ b/widget.h
@@ -56,6 +56,8 @@ typedef struct WIDGET {
     int row;
     int col;
     void *data;
+    int x2;			/* x of opposite corner, -1 for no display widget */
+    int y2;			/* y of opposite corner, -1 for no display widget */
 } WIDGET;
 
 
@@ -68,8 +70,15 @@ typedef struct WIDGET {
 
 int widget_register(WIDGET_CLASS * widget);
 void widget_unregister(void);
+int intersect(WIDGET * w1, WIDGET * w2);
 int widget_add(const char *name, const int type, const int layer, const int row, const int col);
 WIDGET *widget_find(int type, void *needle);
 int widget_color(const char *section, const char *name, const char *key, RGBA * C);
 
+#undef MIN
+#define MIN(a,b) ((a) < (b) ? (a) : (b))
+#undef MAX
+#define MAX(a,b) ((a) > (b) ? (a) : (b))
+#define NOCOORD (-1)
+
 #endif