editors/scapp/include/SCGeom.h

   1 /*
   2         SuperCollider real time audio synthesis system
   3     Copyright (c) 2002 James McCartney. All rights reserved.
   4         http://www.audiosynth.com
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of the GNU General Public License as published by
   8     the Free Software Foundation; either version 2 of the License, or
   9     (at your option) any later version.
  10
  11     This program is distributed in the hope that it will be useful,
  12     but WITHOUT ANY WARRANTY; without even the implied warranty of
  13     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14     GNU General Public License for more details.
  15
  16     You should have received a copy of the GNU General Public License
  17     along with this program; if not, write to the Free Software
  18     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
  19 */
  20
  21 #if defined(__APPLE__) && !defined(SC_IPHONE)
  22         #import <Carbon/Carbon.h>
  23 #endif
  24 #ifdef SC_IPHONE
  25         #import <UIKit/UIKit.h>
  26 #endif
  27 #include "SC_BoundsMacros.h"
  28
  29 struct SCColor {
  30     float red, green, blue, alpha;
  31 };
  32 typedef struct SCColor SCColor;
  33
  34 inline SCColor SCMakeColor(float red, float green, float blue, float alpha)
  35 {
  36         SCColor sccolor;
  37         sccolor.red = red;
  38         sccolor.green = green;
  39         sccolor.blue = blue;
  40         sccolor.alpha = alpha;
  41         return sccolor;
  42 }
  43
  44 struct SCPoint {
  45         float x, y;
  46 };
  47
  48 inline SCPoint SCMakePoint(float x, float y)
  49 {
  50         SCPoint p;
  51         p.x = x;
  52         p.y = y;
  53         return p;
  54 }
  55
  56 struct SCRect {
  57         float x, y, width, height;
  58 };
  59
  60 inline SCRect SCRectUnion(SCRect a, SCRect b)
  61 {
  62         if (a.height <= 0. && a.width <= 0.) return b;
  63         if (b.height <= 0. && b.width <= 0.) return a;
  64
  65         SCRect u;
  66         u.x = sc_min(a.x, b.x);
  67         u.y = sc_min(a.y, b.y);
  68         u.width = sc_max(a.x + a.width, b.x + b.width) - u.x;
  69         u.height = sc_max(a.y + a.height, b.y + b.height) - u.y;
  70         return u;
  71 }
  72
  73 inline bool SCRectsDoIntersect(SCRect a, SCRect b)
  74 {
  75         if ((a.x + a.width) <= b.x) return false;
  76         if ((a.y + a.height) <= b.y) return false;
  77         if (a.x >= (b.x + b.width)) return false;
  78         if (a.y >= (b.y + b.height)) return false;
  79         return true;
  80 }
  81
  82 inline SCRect SCMakeRect(float x, float y, float width, float height)
  83 {
  84         SCRect r;
  85         r.x = x; r.y = y; r.width = width; r.height = height;
  86         return r;
  87 }
  88
  89 inline bool SCPointInRect(SCPoint p, SCRect r)
  90 {
  91         return
  92             p.x >= r.x && p.x <= r.x + r.width
  93          && p.y >= r.y && p.y <= r.y + r.height;
  94
  95 }