1 files changed, 560 insertions, 0 deletions
diff --git a/AppKit/GTMGeometryUtils.h b/AppKit/GTMGeometryUtils.h
new file mode 100644
index 0000000..1dd274f
--- /dev/null
+++ b/AppKit/GTMGeometryUtils.h
@@ -0,0 +1,560 @@
+//
+//  GTMGeometryUtils.h
+//
+//  Utilities for geometrical utilities such as conversions
+//  between different types.
+//
+//  Copyright 2006-2008 Google Inc.
+//
+//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
+//  use this file except in compliance with the License.  You may obtain a copy
+//  of the License at
+// 
+//  http://www.apache.org/licenses/LICENSE-2.0
+// 
+//  Unless required by applicable law or agreed to in writing, software
+//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+//  License for the specific language governing permissions and limitations under
+//  the License.
+//
+
+#include <Carbon/Carbon.h>
+#include <Cocoa/Cocoa.h>
+
+
+#pragma mark Miscellaneous
+
+/// Calculate the distance between two points.
+//
+//  Args:
+//    pt1 first point
+//    pt2 second point
+//  
+//  Returns:
+//    Distance
+CG_INLINE float GTMDistanceBetweenPoints(NSPoint pt1, NSPoint pt2) {
+  float dX = pt1.x - pt2.x;
+  float dY = pt1.y - pt2.y;
+  return sqrtf(dX * dX + dY * dY);
+}
+
+///  Returns the height of the main display (the one with the menu bar).
+//
+///  The value updates itself automatically whenever the user
+///  repositions their monitors, or changes resolutions etc.
+//
+//  Returns:
+//    height of the main display area.
+float GTMGetMainDisplayHeight(void);
+
+#pragma mark -
+#pragma mark Point Conversion
+
+///  Quickly convert from a global HIPoint to a global NSPoint.
+//
+///  HIPoints are relative to 0,0 in upper left;
+///  NSPoints are relative to 0,0 in lower left
+//
+//  Args: 
+//    inPoint: HIPoint to convert
+//
+//  Returns:
+//    Converted NSPoint
+CG_INLINE NSPoint GTMGlobalHIPointToNSPoint(HIPoint inPoint) { 
+  return NSMakePoint(inPoint.x, GTMGetMainDisplayHeight() - inPoint.y); 
+}
+
+///  Quickly convert from a global NSPoint to a global HIPoint.
+//
+///  HIPoints are relative to 0,0 in upper left;
+///  NSPoints are relative to 0,0 in lower left
+//
+//  Args: 
+//    inPoint: NSPoint to convert
+//
+//  Returns:
+//    Converted HIPoint
+CG_INLINE HIPoint GTMGlobalNSPointToHIPoint(NSPoint inPoint) { 
+  return CGPointMake(inPoint.x, GTMGetMainDisplayHeight() - inPoint.y); 
+}
+
+///  Quickly convert from a CGPoint to a NSPoint.
+//
+///  CGPoints are relative to 0,0 in lower left;
+///  NSPoints are relative to 0,0 in lower left
+//
+//  Args: 
+//    inPoint: CGPoint to convert
+//
+//  Returns:
+//    Converted NSPoint
+CG_INLINE NSPoint GTMCGPointToNSPoint(CGPoint inPoint) { 
+  return NSMakePoint(inPoint.x, inPoint.y); 
+}
+
+///  Quickly convert from a NSPoint to a CGPoint.
+//
+///  CGPoints are relative to 0,0 in lower left;
+///  NSPoints are relative to 0,0 in lower left
+//
+//  Args: 
+//    inPoint: NSPoint to convert
+//
+//  Returns:
+//    Converted CGPoint
+CG_INLINE CGPoint GTMNSPointToCGPoint(NSPoint inPoint) { 
+  return CGPointMake(inPoint.x, inPoint.y); 
+}
+
+///  Quickly convert from a global HIPoint to a global CGPoint.
+//
+///  HIPoints are relative to 0,0 in upper left;
+///  CGPoints are relative to 0,0 in lower left
+//
+//  Args: 
+//    inPoint: NSPoint to convert
+//
+//  Returns:
+//    Converted CGPoint
+CG_INLINE HIPoint GTMGlobalCGPointToHIPoint(CGPoint inPoint) { 
+  return GTMGlobalNSPointToHIPoint(GTMCGPointToNSPoint(inPoint)); 
+}
+
+///  Quickly convert from a global CGPoint to a global HIPoint.
+//
+///  HIPoints are relative to 0,0 in upper left;
+///    CGPoints are relative to 0,0 in lower left
+//
+//  Args: 
+//    inPoint: CGPoint to convert
+//
+//  Returns:
+//    Converted NSPoint
+CG_INLINE CGPoint GTMGlobalHIPointToCGPoint(HIPoint inPoint) { 
+  return GTMNSPointToCGPoint(GTMGlobalHIPointToNSPoint(inPoint)); 
+}
+
+#pragma mark -
+#pragma mark Rect Conversion
+
+///  Convert from a global NSRect to a global HIRect.
+//
+///  HIRect are relative to 0,0 in upper left;
+///  NSRect are relative to 0,0 in lower left
+//
+//  Args: 
+//    inRect: NSRect to convert
+//
+//  Returns:
+//    Converted HIRect
+HIRect GTMGlobalNSRectToHIRect(NSRect inRect);
+
+///  Convert from a rect to a HIRect.
+//
+///  HIRect are relative to 0,0 in upper left;
+///  Rect are relative to 0,0 in upper left
+//
+//  Args: 
+//    inRect: Rect to convert
+//
+//  Returns:
+//    Converted HIRect
+HIRect GTMRectToHIRect(Rect inRect);
+
+///  Convert from a global HIRect to a global NSRect.
+//
+///  NSRect are relative to 0,0 in lower left;
+///  HIRect are relative to 0,0 in upper left
+//
+//  Args: 
+//    inRect: HIRect to convert
+//
+//  Returns:
+//    Converted NSRect
+NSRect GTMGlobalHIRectToNSRect(HIRect inRect);
+
+
+///  Convert from a HIRect to a Rect.
+//
+///  Rect are relative to 0,0 in upper left;
+///  HIRect are relative to 0,0 in upper left
+//
+//  Args: 
+//    inRect: HIRect to convert
+//
+//  Returns:
+//    Converted Rect
+Rect GTMHIRectToRect(HIRect inRect);
+
+///  Convert from a global Rect to a global NSRect.
+//
+///  NSRect are relative to 0,0 in lower left;
+///  Rect are relative to 0,0 in upper left
+//
+//  Args: 
+//    inRect: Rect to convert
+//
+//  Returns:
+//    Converted NSRect
+CG_INLINE NSRect GTMGlobalRectToNSRect(Rect inRect) {
+  return GTMGlobalHIRectToNSRect(GTMRectToHIRect(inRect));
+}
+
+///  Convert from a CGRect to a NSRect.
+//
+///  NSRect are relative to 0,0 in lower left;
+///  CGRect are relative to 0,0 in lower left
+//
+//  Args: 
+//    inRect: CGRect to convert
+//
+//  Returns:
+//    Converted NSRect
+CG_INLINE NSRect GTMCGRectToNSRect(CGRect inRect) {
+  return NSMakeRect(inRect.origin.x,inRect.origin.y,inRect.size.width,inRect.size.height);
+}
+
+///  Convert from a NSRect to a CGRect.
+//
+///  NSRect are relative to 0,0 in lower left;
+///  CGRect are relative to 0,0 in lower left
+//
+//  Args: 
+//    inRect: NSRect to convert
+//
+//  Returns:
+//    Converted CGRect
+CG_INLINE CGRect GTMNSRectToCGRect(NSRect inRect) {
+  return CGRectMake(inRect.origin.x,inRect.origin.y,inRect.size.width,inRect.size.height);
+}
+
+///  Convert from a global HIRect to a global CGRect.
+//
+///  HIRect are relative to 0,0 in upper left;
+///  CGRect are relative to 0,0 in lower left
+//
+//  Args: 
+//    inRect: HIRect to convert
+//
+//  Returns:
+//    Converted CGRect
+CG_INLINE CGRect GTMGlobalHIRectToCGRect(HIRect inRect) {
+  return GTMNSRectToCGRect(GTMGlobalHIRectToNSRect(inRect));
+}
+
+///  Convert from a global Rect to a global CGRect.
+//
+///  Rect are relative to 0,0 in upper left;
+///  CGRect are relative to 0,0 in lower left
+//
+//  Args: 
+//    inRect: Rect to convert
+//
+//  Returns:
+//    Converted CGRect
+CG_INLINE CGRect GTMGlobalRectToCGRect(Rect inRect) {
+  return GTMNSRectToCGRect(GTMGlobalRectToNSRect(inRect));
+}
+
+///  Convert from a global NSRect to a global Rect.
+//
+///  Rect are relative to 0,0 in upper left;
+///  NSRect are relative to 0,0 in lower left
+//
+//  Args: 
+//    inRect: NSRect to convert
+//
+//  Returns:
+//    Converted Rect
+CG_INLINE Rect GTMGlobalNSRectToRect(NSRect inRect) {
+  return GTMHIRectToRect(GTMGlobalNSRectToHIRect(inRect));
+}
+
+///  Convert from a global CGRect to a global HIRect.
+//
+///  HIRect are relative to 0,0 in upper left;
+///  CGRect are relative to 0,0 in lower left
+//
+//  Args: 
+//    inRect: CGRect to convert
+//
+//  Returns:
+//    Converted HIRect
+CG_INLINE HIRect GTMGlobalCGRectToHIRect(CGRect inRect) {
+  return GTMGlobalNSRectToHIRect(GTMCGRectToNSRect(inRect));
+}
+
+///  Convert from a global CGRect to a global Rect.
+//
+///  Rect are relative to 0,0 in upper left;
+///  CGRect are relative to 0,0 in lower left
+//
+//  Args: 
+//    inRect: CGRect to convert
+//
+//  Returns:
+//    Converted Rect
+CG_INLINE Rect GTMGlobalCGRectToRect(CGRect inRect) {
+  return GTMHIRectToRect(GTMGlobalCGRectToHIRect(inRect));
+}
+
+#pragma mark -
+#pragma mark Size Conversion
+
+///  Convert from a CGSize to an NSSize.
+//
+//  Args: 
+//    inSize: CGSize to convert
+//
+//  Returns:
+//    Converted NSSize
+CG_INLINE NSSize GTMCGSizeToNSSize(CGSize inSize) {
+  return NSMakeSize(inSize.width, inSize.height);
+}
+
+///  Convert from a NSSize to a CGSize.
+//
+//  Args: 
+//    inSize: NSSize to convert
+//
+//  Returns:
+//    Converted CGSize
+CG_INLINE CGSize GTMNSSizeToCGSize(NSSize inSize) {
+  return CGSizeMake(inSize.width, inSize.height);
+}
+
+#pragma mark -
+#pragma mark Point On Rect
+
+/// Return middle of left side of rectangle
+//
+//  Args:
+//    rect - rectangle
+//  
+//  Returns:
+//    point located in the middle of left side of rect
+CG_INLINE NSPoint GTMNSMidLeft(NSRect rect) {
+  return NSMakePoint(NSMinX(rect), NSMidY(rect));
+}
+
+/// Return middle of right side of rectangle
+//
+//  Args:
+//    rect - rectangle
+//  
+//  Returns:
+//    point located in the middle of right side of rect
+CG_INLINE NSPoint GTMNSMidRight(NSRect rect) {
+  return NSMakePoint(NSMaxX(rect), NSMidY(rect));
+}
+
+/// Return middle of top side of rectangle
+//
+//  Args:
+//    rect - rectangle
+//  
+//  Returns:
+//    point located in the middle of top side of rect
+CG_INLINE NSPoint GTMNSMidTop(NSRect rect) {
+  return NSMakePoint(NSMidX(rect), NSMaxY(rect));
+}
+
+/// Return middle of bottom side of rectangle
+//
+//  Args:
+//    rect - rectangle
+//  
+//  Returns:
+//    point located in the middle of bottom side of rect
+CG_INLINE NSPoint GTMNSMidBottom(NSRect rect) {
+  return NSMakePoint(NSMidX(rect), NSMinY(rect));
+}
+
+/// Return center of rectangle
+//
+//  Args:
+//    rect - rectangle
+//  
+//  Returns:
+//    point located in the center of rect
+CG_INLINE NSPoint GTMNSCenter(NSRect rect) {
+  return NSMakePoint(NSMidX(rect), NSMidY(rect));
+}
+
+/// Return middle of left side of rectangle
+//
+//  Args:
+//    rect - rectangle
+//  
+//  Returns:
+//    point located in the middle of left side of rect
+CG_INLINE CGPoint GTMCGMidLeft(CGRect rect) {
+  return CGPointMake(CGRectGetMinX(rect), CGRectGetMidY(rect));
+}
+
+/// Return middle of right side of rectangle
+//
+//  Args:
+//    rect - rectangle
+//  
+//  Returns:
+//    point located in the middle of right side of rect
+CG_INLINE CGPoint GTMCGMidRight(CGRect rect) {
+  return CGPointMake(CGRectGetMaxX(rect), CGRectGetMidY(rect));
+}
+
+/// Return middle of top side of rectangle
+//
+//  Args:
+//    rect - rectangle
+//  
+//  Returns:
+//    point located in the middle of top side of rect
+CG_INLINE CGPoint GTMCGMidTop(CGRect rect) {
+  return CGPointMake(CGRectGetMidX(rect), CGRectGetMaxY(rect));
+}
+
+/// Return middle of bottom side of rectangle
+//
+//  Args:
+//    rect - rectangle
+//  
+//  Returns:
+//    point located in the middle of bottom side of rect
+CG_INLINE CGPoint GTMCGMidBottom(CGRect rect) {
+  return CGPointMake(CGRectGetMidX(rect), CGRectGetMinY(rect));
+}
+
+/// Return center of rectangle
+//
+//  Args:
+//    rect - rectangle
+//  
+//  Returns:
+//    point located in the center of rect
+CG_INLINE CGPoint GTMCGCenter(CGRect rect) {
+  return CGPointMake(CGRectGetMidX(rect), CGRectGetMidY(rect));
+}
+
+#pragma mark -
+#pragma mark Rect-Size Conversion
+
+/// Return size of rectangle
+//
+//  Args:
+//    rect - rectangle
+//  
+//  Returns:
+//    size of rectangle
+CG_INLINE NSSize GTMNSRectSize(NSRect rect) {
+  return NSMakeSize(NSWidth(rect), NSHeight(rect));
+}
+
+/// Return size of rectangle
+//
+//  Args:
+//    rect - rectangle
+//  
+//  Returns:
+//    size of rectangle
+CG_INLINE CGSize GTMCGRectSize(CGRect rect) {
+  return CGSizeMake(CGRectGetWidth(rect), CGRectGetHeight(rect));
+}
+
+/// Return rectangle of size
+//
+//  Args:
+//    size - size
+//  
+//  Returns:
+//    rectangle of size (origin 0,0)
+CG_INLINE NSRect GTMNSRectOfSize(NSSize size) {
+  return NSMakeRect(0.0f, 0.0f, size.width, size.height);
+}
+
+/// Return rectangle of size
+//
+//  Args:
+//    size - size
+//  
+//  Returns:
+//    rectangle of size (origin 0,0)
+CG_INLINE CGRect GTMCGRectOfSize(CGSize size) {
+  return CGRectMake(0.0f, 0.0f, size.width, size.height);
+}
+
+#pragma mark -
+#pragma mark Rect Scaling and Alignment
+
+///  Scales an NSRect
+//
+//  Args: 
+//    inRect: Rect to scale
+//    xScale: fraction to scale (1.0 is 100%)
+//    yScale: fraction to scale (1.0 is 100%)
+//
+//  Returns:
+//    Converted Rect
+CG_INLINE NSRect GTMNSRectScale(NSRect inRect, float xScale, float yScale) {
+  return NSMakeRect(inRect.origin.x, inRect.origin.y, 
+                    inRect.size.width * xScale, inRect.size.height * yScale);
+}
+
+///  Scales an CGRect
+//
+//  Args: 
+//    inRect: Rect to scale
+//    xScale: fraction to scale (1.0 is 100%)
+//    yScale: fraction to scale (1.0 is 100%)
+//
+//  Returns:
+//    Converted Rect
+CG_INLINE CGRect GTMCGRectScale(CGRect inRect, float xScale, float yScale) {
+  return CGRectMake(inRect.origin.x, inRect.origin.y, 
+                    inRect.size.width * xScale, inRect.size.height * yScale);
+}
+
+/// Align rectangles
+//
+//  Args:
+//    alignee - rect to be aligned
+//    aligner - rect to be aligned from
+NSRect GTMAlignRectangles(NSRect alignee, NSRect aligner, 
+                         NSImageAlignment alignment);  
+
+/// Align rectangles
+//
+//  Args:
+//    alignee - rect to be aligned
+//    aligner - rect to be aligned from
+//    alignment - way to align the rectangles
+CG_INLINE CGRect GTMCGAlignRectangles(CGRect alignee, CGRect aligner, 
+                                      NSImageAlignment alignment) {
+  return GTMNSRectToCGRect(GTMAlignRectangles(GTMCGRectToNSRect(alignee),
+                                              GTMCGRectToNSRect(aligner),
+                                              alignment));
+}
+
+/// Scale rectangle
+//
+//  Args:
+//    scalee - rect to be scaled
+//    size - size to scale to
+//    scaling - way to scale the rectangle
+NSRect GTMScaleRectangleToSize(NSRect scalee, NSSize size, 
+                              NSImageScaling scaling);  
+
+/// Scale rectangle
+//
+//  Args:
+//    scalee - rect to be scaled
+//    size - size to scale to
+//    scaling - way to scale the rectangle
+CG_INLINE CGRect GTMCGScaleRectangleToSize(CGRect scalee, CGSize size, 
+                                           NSImageScaling scaling) {
+  return GTMNSRectToCGRect(GTMScaleRectangleToSize(GTMCGRectToNSRect(scalee),
+                                                   GTMCGSizeToNSSize(size),
+                                                   scaling));
+}
+