Add debugging option to Select tool

Selecting edges and/or nodes and pressing shift-d will print info about
them to the console.

2 files changed, 14 insertions, 0 deletions

diff --git a/tikzit/src/common/Edge.h b/tikzit/src/common/Edge.h
index cc636dd..64da138 100644
--- a/tikzit/src/common/Edge.h
+++ b/tikzit/src/common/Edge.h
@@ -222,6 +222,8 @@ typedef enum {
  */
 @property (readonly) NSPoint rightNormal;
 
+@property (readonly) NSPoint headTan;
+
 /*!
  @property   leftHeadNormal
  */
@@ -232,6 +234,8 @@ typedef enum {
  */
 @property (readonly) NSPoint rightHeadNormal;
 
+@property (readonly) NSPoint tailTan;
+
 /*!
  @property   leftTailNormal
  */
diff --git a/tikzit/src/common/Edge.m b/tikzit/src/common/Edge.m
index f9cb9b5..cabf860 100644
--- a/tikzit/src/common/Edge.m
+++ b/tikzit/src/common/Edge.m
@@ -228,6 +228,11 @@
 	return NSMakePoint(mid.x - (mid.y - midTan.y), mid.y + (mid.x - midTan.x));
 }
 
+- (NSPoint)headTan {
+	[self updateControls];
+	return headTan;
+}
+
 - (NSPoint)leftHeadNormal {
 	[self updateControls];
 	return NSMakePoint(headTan.x + (head.y - headTan.y), headTan.y - (head.x - headTan.x));
@@ -238,6 +243,11 @@
 	return NSMakePoint(headTan.x - (head.y - headTan.y), headTan.y + (head.x - headTan.x));
 }
 
+- (NSPoint)tailTan {
+	[self updateControls];
+	return tailTan;
+}
+
 - (NSPoint)leftTailNormal {
 	[self updateControls];
 	return NSMakePoint(tailTan.x + (tail.y - tailTan.y), tailTan.y - (tail.x - tailTan.x));