Add first version of FL/Fl_Rect.H.

This version is not yet used in existing code. It may be extended with
more methods if we find we need them.


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12259 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 86 insertions, 0 deletions

diff --git a/FL/Fl_Rect.H b/FL/Fl_Rect.H
new file mode 100644
index 000000000..dc2125ebd
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+++ b/FL/Fl_Rect.H
@@ -0,0 +1,86 @@
+//
+// "$Id$"
+//
+// Fl_Rect header file for the Fast Light Tool Kit (FLTK).
+//
+// Copyright 1998-2017 by Bill Spitzak and others.
+//
+// This library is free software. Distribution and use rights are outlined in
+// the file "COPYING" which should have been included with this file.  If this
+// file is missing or damaged, see the license at:
+//
+//     http://www.fltk.org/COPYING.php
+//
+// Please report all bugs and problems on the following page:
+//
+//     http://www.fltk.org/str.php
+//
+
+#ifndef Fl_Rect_H
+#define Fl_Rect_H
+
+#include <FL/Fl_Widget.H>	// for c'tor based on Fl_Widget
+
+/**
+  Rectangle with standard FLTK coordinates (X, Y, W, H).
+
+  This may be used internally, for overloaded widget contructors and other
+  overloaded methods like fl_measure(), fl_text_extents(), fl_rect(),
+  fl_rectf(), and maybe more.
+*/
+
+class FL_EXPORT Fl_Rect {
+
+  int x_;
+  int y_;
+  int w_;
+  int h_;
+
+public:
+
+  /** The default constructor creates an empty rectangle (x = y = w = h = 0). */
+  Fl_Rect()
+  : x_(0), y_(0), w_(0), h_(0) {}
+
+  /** This constructor creates a rectangle with x = y = 0 and
+    the given width and height. */
+  Fl_Rect(int W, int H)
+  : x_(0), y_(0), w_(W), h_(H) {}
+
+  /** This constructor creates a rectangle with the given x,y coordinates
+    and the given width and height. */
+  Fl_Rect(int X, int Y, int W, int H)
+  : x_(X), y_(Y), w_(W), h_(H) {}
+
+  /** Copy constructor. */
+  Fl_Rect (const Fl_Rect& r)
+  : x_(r.x()), y_(r.y()), w_(r.w()), h_(r.h()) {}
+
+ /** This constructor creates a rectangle based a widget's position and size. */
+  Fl_Rect (const Fl_Widget& widget)
+  : x_(widget.x()), y_(widget.y()), w_(widget.w()), h_(widget.h()) {}
+
+ /** This constructor creates a rectangle based a widget's position and size. */
+  Fl_Rect (const Fl_Widget* const widget)
+  : x_(widget->x()), y_(widget->y()), w_(widget->w()), h_(widget->h()) {}
+
+  int x() const { return x_; }		///< gets the x coordinate (left edge)
+  int y() const { return y_; }		///< gets the y coordinate (top edge)
+  int w() const { return w_; }		///< gets the width
+  int h() const { return h_; }		///< gets the height
+
+  int r() const { return x_ + w_; }	///< gets the right edge (x + w)
+  int b() const { return y_ + h_; }	///< gets the bottom edge (y + h)
+
+  void x(int X) { x_ = X; }		///< sets the x coordinate (left edge)
+  void y(int Y) { y_ = Y; }		///< sets the y coordinate (top edge)
+  void w(int W) { w_ = W; }		///< sets the width
+  void h(int H) { h_ = H; }		///< sets the height
+
+}; // class Fl_Rect
+
+#endif // Fl_Rect_H
+
+//
+// End of "$Id$".
+//