Refactor Canvas and add some helpers.

- Refactor Canvas from FlightGear and fix lazy rendering with recursive canvases. - New classes PropertyBasedElement and PropertyBasedManager for creating subsystems controlled by the property tree. - New method parseColor to parse CSS 3 conformant color strings (only basic color schemes supported) - New Rect class representing a rectangle.
2012-11-04 14:12:05 +01:00
parent a7f64cf7aa
commit b99f53fda3
41 changed files with 4381 additions and 271 deletions
@@ -1,7 +1,8 @@
 include (SimGearComponent)


-set(HEADERS 
+set(HEADERS
+    Rect.hxx
    SGBox.hxx
    SGCMath.hxx
    SGGeoc.hxx
@@ -0,0 +1,85 @@
+// Class representing a rectangular region
+//
+// Copyright (C) 2012  Thomas Geymayer <tomgey@gmail.com>
+//
+// This library is free software; you can redistribute it and/or
+// modify it under the terms of the GNU Library General Public
+// License as published by the Free Software Foundation; either
+// version 2 of the License, or (at your option) any later version.
+//
+// This library 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
+// Library General Public License for more details.
+//
+// You should have received a copy of the GNU Library General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301, USA
+
+#ifndef SG_RECT_HXX_
+#define SG_RECT_HXX_
+
+#include <osg/Vec2>
+
+namespace simgear
+{
+
+  template<typename T>
+  class Rect
+  {
+    public:
+      Rect():
+        _x1(0),
+        _x2(0),
+        _y1(0),
+        _y2(0)
+      {}
+
+      Rect(T x, T y, T w, T h):
+        _x1(x),
+        _x2(x + w),
+        _y1(y),
+        _y2(y + h)
+      {}
+
+      void set(T x, T y, T w, T h)
+      {
+        _x1 = x;
+        _x2 = x + w;
+        _y1 = y;
+        _y2 = y + h;
+      }
+
+      T x() const { return _x1; }
+      T y() const { return _y1; }
+      T width() const { return _x2 - _x1; }
+      T height() const { return _y2 - _y1; }
+
+      void setX(T x) { T w = width(); _x1 = x; _x2 = x + w; }
+      void setY(T y) { T h = height(); _y1 = y; _y2 = y + h; }
+      void setWidth(T w) { _x2 = _x1 + w; }
+      void setHeight(T h) { _y2 = _y1 + h; }
+
+      T l() const { return _x1; }
+      T r() const { return _x2; }
+      T t() const { return _y1; }
+      T b() const { return _y2; }
+
+      void setLeft(T l) { _x1 = l; }
+      void setRight(T r) { _x2 = r; }
+      void setTop(T t) { _y1 = t; }
+      void setBottom(T b) { _y2 = b; }
+
+      bool contains(T x, T y) const
+      {
+        return _x1 <= x && x <= _x2
+            && _y1 <= y && y <= _y2;
+      }
+
+    private:
+      T _x1, _x2, _y1, _y2;
+  };
+
+} // namespace simgear
+
+#endif /* SG_RECT_HXX_ */