1 files changed, 47 insertions, 0 deletions
diff --git a/Sources/Compositor/OwlSurfaceState.h b/Sources/Compositor/OwlSurfaceState.h
new file mode 100644
index 0000000..505b28d
--- /dev/null
+++ b/Sources/Compositor/OwlSurfaceState.h
@@ -0,0 +1,47 @@
+/* This file is part of Owl.
+ *
+ * Copyright © 2019-2021 Sergey Bugaev <bugaevc@gmail.com>
+ *
+ * Owl 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 3 of the License,
+ * or (at your option) any later version.
+ *
+ * Owl 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 Owl.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#import <Cocoa/Cocoa.h>
+
+@class OwlBuffer;
+@class OwlCallback;
+
+@interface OwlSurfaceState : NSObject {
+    OwlBuffer *_buffer;
+    // TODO: dx, dy
+    NSMutableArray *_callbacks;
+    NSMutableArray *_damage;
+    NSRect _geometry;
+}
+
+- (id) init;
+- (id) initWithPreviousState: (OwlSurfaceState *) previousState;
+
+- (OwlBuffer *) buffer;
+- (void) setBuffer: (OwlBuffer *) buffer;
+
+- (NSArray *) callbacks;
+- (void) addCallback: (OwlCallback *) callback;
+
+- (NSArray *) damage;
+- (void) addDamage: (NSRect) damageRect;
+
+- (NSRect) geometry;
+- (void) setGeometry: (NSRect) geometry;
+
+@end