c0cbf0fbde
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12726 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
95 lines
2.9 KiB
C++
95 lines
2.9 KiB
C++
//
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// "$Id$"
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//
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// Fl_Rect header file for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2017 by Bill Spitzak and others.
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//
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// This library is free software. Distribution and use rights are outlined in
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// the file "COPYING" which should have been included with this file. If this
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// file is missing or damaged, see the license at:
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//
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// http://www.fltk.org/COPYING.php
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//
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// Please report all bugs and problems on the following page:
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//
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// http://www.fltk.org/str.php
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//
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#ifndef Fl_Rect_H
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#define Fl_Rect_H
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#include <FL/Fl_Widget.H> // for c'tor based on Fl_Widget
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/**
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Rectangle with standard FLTK coordinates (X, Y, W, H).
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This may be used internally, for overloaded widget contructors and other
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overloaded methods like fl_measure(), fl_text_extents(), fl_rect(),
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fl_rectf(), and maybe more.
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*/
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class FL_EXPORT Fl_Rect {
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int x_;
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int y_;
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int w_;
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int h_;
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public:
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/** The default constructor creates an empty rectangle (x = y = w = h = 0). */
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Fl_Rect()
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: x_(0), y_(0), w_(0), h_(0) {}
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/** This constructor creates a rectangle with x = y = 0 and
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the given width and height. */
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Fl_Rect(int W, int H)
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: x_(0), y_(0), w_(W), h_(H) {}
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/** This constructor creates a rectangle with the given x,y coordinates
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and the given width and height. */
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Fl_Rect(int X, int Y, int W, int H)
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: x_(X), y_(Y), w_(W), h_(H) {}
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/** This constructor creates a rectangle based on a widget's position and size. */
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Fl_Rect (const Fl_Widget& widget)
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: x_(widget.x()), y_(widget.y()), w_(widget.w()), h_(widget.h()) {}
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/** This constructor creates a rectangle based on a widget's position and size. */
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Fl_Rect (const Fl_Widget* const widget)
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: x_(widget->x()), y_(widget->y()), w_(widget->w()), h_(widget->h()) {}
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/** Return 1 if the rectangle is empty, width or height are 0 */
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int is_empty() { return (w_==0)||(h_==0); }
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/** Set the position and size */
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void set(int x, int y, int w, int h) { x_=x; y_=y; w_=w; h_=h; }
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/** return 0 if the rectangles are different, or 1 if they are the same */
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int equals(int x, int y, int w, int h) { return ( (x_==x) && (y_==y) && (w_==w) && (h_==h) ); }
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/** Set the position and size to zero, making this rect empty */
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void clear() { x_ = y_ = w_ = h_ = 0; }
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int x() const { return x_; } ///< gets the x coordinate (left edge)
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int y() const { return y_; } ///< gets the y coordinate (top edge)
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int w() const { return w_; } ///< gets the width
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int h() const { return h_; } ///< gets the height
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int r() const { return x_ + w_; } ///< gets the right edge (x + w)
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int b() const { return y_ + h_; } ///< gets the bottom edge (y + h)
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void x(int X) { x_ = X; } ///< sets the x coordinate (left edge)
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void y(int Y) { y_ = Y; } ///< sets the y coordinate (top edge)
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void w(int W) { w_ = W; } ///< sets the width
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void h(int H) { h_ = H; } ///< sets the height
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}; // class Fl_Rect
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#endif // Fl_Rect_H
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//
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// End of "$Id$".
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//
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