Avoid seg fault when no output exists

[apps/agl-service-windowmanager.git] / src / util.hpp

diff --git a/src/util.hpp b/src/util.hpp
index 78d2185..8782353 100644 (file)
--- a/src/util.hpp
+++ b/src/util.hpp
@@ -1,5 +1,6 @@
 /*
  * Copyright (c) 2017 TOYOTA MOTOR CORPORATION
+ * Copyright (c) 2018 Konsulko Group
  *
  * Licensed under the Apache License, Version 2.0 (the "License");
  * you may not use this file except in compliance with the License.
@@ -20,16 +21,10 @@
 #include <functional>
 #include <thread>
 #include <vector>
+#include <string>
 
 #include <sys/poll.h>
 
-#ifndef DO_NOT_USE_AFB
-extern "C"
-{
-#include <afb/afb-binding.h>
-};
-#endif
-
 #define CONCAT_(X, Y) X##Y
 #define CONCAT(X, Y) CONCAT_(X, Y)
 
@@ -109,4 +104,61 @@ struct unique_fd
     }
 };
 
+class rectangle
+{
+  public:
+    explicit rectangle(long wd, long ht) : _right(wd - 1), _bottom(ht - 1) {};
+
+    void set_left(long l) {
+        _left = l;
+    }
+    long left() const { return _left; };
+
+    void set_right(long r) {
+        _right = r;
+    }
+    long right() const { return _right; };
+
+    void set_top(long t) {
+        _top = t;
+    }
+    long top() const { return _top; };
+
+    void set_bottom(long b) {
+        _bottom = b;
+    }
+    long bottom() const { return _bottom; }
+
+    long width() const {
+        if (is_valid())
+            return 0;
+        else
+            return _right - _left + 1;
+    }
+
+    long height() const {
+        if (is_valid())
+            return 0;
+        else
+            return _bottom - _top + 1;
+    }
+
+    void set_aspect(double ratio);
+    void fit(unsigned long to_width, unsigned long to_height);
+    void center(unsigned long outer_w, unsigned long outer_h);
+
+  private:
+    bool is_valid() const {
+        return (_top > _bottom || _left > _right);
+    }
+
+    long _left = 0;
+    long _top = 0;
+    long _right;
+    long _bottom;
+};
+
+// Configuration file path helper
+std::string get_file_path(const char *file_name, const char *log_category = "wm");
+
 #endif // !WM_UTIL_HPP