1 files changed, 73 insertions, 0 deletions
diff --git a/libmetacity/meta-button.h b/libmetacity/meta-button.h
new file mode 100644
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--- /dev/null
+++ b/libmetacity/meta-button.h
@@ -0,0 +1,73 @@
+/*
+ * Copyright (C) 2001 Havoc Pennington
+ * Copyright (C) 2016 Alberts Muktupāvels
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef META_BUTTON_H
+#define META_BUTTON_H
+
+#include <gdk/gdk.h>
+
+G_BEGIN_DECLS
+
+typedef enum
+{
+  META_BUTTON_TYPE_MENU,
+  META_BUTTON_TYPE_APPMENU,
+  META_BUTTON_TYPE_MINIMIZE,
+  META_BUTTON_TYPE_MAXIMIZE,
+  META_BUTTON_TYPE_CLOSE,
+  META_BUTTON_TYPE_SHADE,
+  META_BUTTON_TYPE_UNSHADE,
+  META_BUTTON_TYPE_ABOVE,
+  META_BUTTON_TYPE_UNABOVE,
+  META_BUTTON_TYPE_STICK,
+  META_BUTTON_TYPE_UNSTICK,
+  META_BUTTON_TYPE_SPACER,
+  META_BUTTON_TYPE_LAST
+} MetaButtonType;
+
+typedef enum
+{
+  META_BUTTON_STATE_NORMAL,
+  META_BUTTON_STATE_PRESSED,
+  META_BUTTON_STATE_PRELIGHT,
+  META_BUTTON_STATE_LAST
+} MetaButtonState;
+
+typedef struct
+{
+  MetaButtonType  type;
+  MetaButtonState state;
+
+  /* The computed size of a button (really just a way of tying its visible
+   * and clickable areas together). The reason for two different rectangles
+   * here is Fitts' law & maximized windows; See bug #97703 for more details.
+   */
+  struct {
+    /* The area where the button's image is drawn. */
+    GdkRectangle  visible;
+
+    /* The area where the button can be activated by clicking */
+    GdkRectangle clickable;
+  } rect;
+
+  gboolean       visible;
+} MetaButton;
+
+G_END_DECLS
+
+#endif