1 files changed, 105 insertions, 0 deletions
diff --git a/src/linux/GraphRenderer.h b/src/linux/GraphRenderer.h
new file mode 100644
index 0000000..4609766
--- /dev/null
+++ b/src/linux/GraphRenderer.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright 2011  Alex Merry <dev@randomguy3.me.uk>
+ *
+ * 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/>.
+ */
+
+#import "TZFoundation.h"
+#import <gtk/gtk.h>
+
+// classes
+#import "Graph.h"
+#import "Grid.h"
+#import "PickSupport.h"
+#import "TikzDocument.h"
+
+// protocols
+#import "Surface.h"
+
+typedef enum {
+    NoHandle,
+    EastHandle,
+    SouthEastHandle,
+    SouthHandle,
+    SouthWestHandle,
+    WestHandle,
+    NorthWestHandle,
+    NorthHandle,
+    NorthEastHandle
+} ResizeHandle;
+
+@interface GraphRenderer: NSObject <RenderDelegate> {
+    TikzDocument       *doc;
+    NSObject<Surface>  *surface;
+    Grid               *grid;
+    NSRect              selectionBox;
+    Node               *halfEdgeOrigin;
+    NSPoint             halfEdgeOriginPoint;
+    NSPoint             halfEdgeEnd;
+    BOOL                showBoundingBoxHandles;
+}
+
+- (id) initWithSurface:(NSObject <Surface> *)surface;
+- (id) initWithSurface:(NSObject <Surface> *)surface document:(TikzDocument*)document;
+- (void) renderWithContext:(id<RenderContext>)context;
+- (void) invalidateGraph;
+- (void) invalidateNode:(Node*)node;
+- (void) invalidateEdge:(Edge*)edge;
+- (void) invalidateNodesHitBy:(NSPoint)point;
+- (BOOL) point:(NSPoint)p hitsNode:(Node*)node;
+- (BOOL) point:(NSPoint)p hitsEdge:(Edge*)edge withFuzz:(float)fuzz;
+/**
+ * Finds a node at the given screen location.
+ *
+ * If there is more than one node at this point (because they overlap),
+ * an arbitrary one is returned.
+ */
+- (Node*) anyNodeAt:(NSPoint)p;
+/**
+ * Finds an edge at the given screen location.
+ *
+ * If there is more than one edge at this point (because they overlap),
+ * an arbitrary one is returned.
+ *
+ * @param fuzz   the fuzz for detecting edges: this will pick up
+ *               edges that are close to the point
+ */
+- (Edge*) anyEdgeAt:(NSPoint)p withFuzz:(float)fuzz;
+
+- (id<Surface>) surface;
+- (Transformer*) transformer;
+- (Grid*) grid;
+- (PickSupport*) pickSupport;
+
+- (Graph*) graph;
+
+- (TikzDocument*) document;
+- (void) setDocument:(TikzDocument*)document;
+
+- (NSRect) selectionBox;
+- (void) setSelectionBox:(NSRect)box;
+- (void) clearSelectionBox;
+
+- (void) setHalfEdgeFrom:(Node*)origin to:(NSPoint)end;
+- (void) clearHalfEdge;
+
+- (BOOL) boundingBoxHandlesShown;
+- (void) setBoundingBoxHandlesShown:(BOOL)shown;
+
+- (ResizeHandle) boundingBoxResizeHandleAt:(NSPoint)point;
+- (NSRect) boundingBoxResizeHandleRect:(ResizeHandle)handle;
+
+@end
+
+// vim:ft=objc:ts=8:et:sts=4:sw=4