1 files changed, 93 insertions, 0 deletions
diff --git a/gfx/insets.h b/gfx/insets.h
new file mode 100644
index 0000000..bbed270
--- /dev/null
+++ b/gfx/insets.h
@@ -0,0 +1,93 @@
+// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef GFX_INSETS_H_
+#define GFX_INSETS_H_
+
+#include "build/build_config.h"
+
+#if defined(OS_POSIX) && !defined(OS_MACOSX)
+#include <gtk/gtkstyle.h>
+#endif
+
+#include <string>
+
+namespace gfx {
+
+//
+// An insets represents the borders of a container (the space the container must
+// leave at each of its edges).
+//
+
+class Insets {
+ public:
+  Insets() : top_(0), left_(0), bottom_(0), right_(0) {}
+  Insets(int top, int left, int bottom, int right)
+      : top_(top),
+        left_(left),
+        bottom_(bottom),
+        right_(right) {}
+#if defined(OS_POSIX) && !defined(OS_MACOSX)
+  explicit Insets(const GtkBorder& border)
+      : top_(border.top),
+        left_(border.left),
+        bottom_(border.bottom),
+        right_(border.right) {}
+#endif
+
+  ~Insets() {}
+
+  int top() const { return top_; }
+  int left() const { return left_; }
+  int bottom() const { return bottom_; }
+  int right() const { return right_; }
+
+  // Returns the total width taken up by the insets, which is the sum of the
+  // left and right insets.
+  int width() const { return left_ + right_; }
+
+  // Returns the total height taken up by the insets, which is the sum of the
+  // top and bottom insets.
+  int height() const { return top_ + bottom_; }
+
+  // Returns true if the insets are empty.
+  bool empty() const { return width() == 0 && height() == 0; }
+
+  void Set(int top, int left, int bottom, int right) {
+    top_ = top;
+    left_ = left;
+    bottom_ = bottom;
+    right_ = right;
+  }
+
+  bool operator==(const Insets& insets) const {
+    return top_ == insets.top_ && left_ == insets.left_ &&
+           bottom_ == insets.bottom_ && right_ == insets.right_;
+  }
+
+  bool operator!=(const Insets& insets) const {
+    return !(*this == insets);
+  }
+
+  Insets& operator+=(const Insets& insets) {
+    top_ += insets.top_;
+    left_ += insets.left_;
+    bottom_ += insets.bottom_;
+    right_ += insets.right_;
+    return *this;
+  }
+
+  // Returns a string representation of the insets.
+  std::string ToString() const;
+
+ private:
+  int top_;
+  int left_;
+  int bottom_;
+  int right_;
+};
+
+}  // namespace gfx
+
+#endif  // GFX_INSETS_H_