167d767e0f
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@6614 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
80 lines
2.7 KiB
C++
80 lines
2.7 KiB
C++
//
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// "$Id$"
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//
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// Overlay window header file for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2009 by Bill Spitzak and others.
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//
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// This library is free software; you can redistribute it and/or
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// modify it under the terms of the GNU Library General Public
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// License as published by the Free Software Foundation; either
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// version 2 of the License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Library General Public License for more details.
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//
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// You should have received a copy of the GNU Library General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA.
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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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/* \file
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Fl_Overlay_Window class . */
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#ifndef Fl_Overlay_Window_H
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#define Fl_Overlay_Window_H
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#include "Fl_Double_Window.H"
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/**
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This window provides double buffering and also the ability to draw the
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"overlay" which is another picture placed on top of the main image. The
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overlay is designed to be a rapidly-changing but simple graphic such as
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a mouse selection box. Fl_Overlay_Window uses the overlay
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planes provided by your graphics hardware if they are available.
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<P>If no hardware support is found the overlay is simulated by drawing
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directly into the on-screen copy of the double-buffered window, and
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"erased" by copying the backbuffer over it again. This means the
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overlay will blink if you change the image in the window.
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*/
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class FL_EXPORT Fl_Overlay_Window : public Fl_Double_Window {
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friend class _Fl_Overlay;
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virtual void draw_overlay() = 0;
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Fl_Window *overlay_;
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public:
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void show();
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void flush();
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void hide();
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void resize(int,int,int,int);
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~Fl_Overlay_Window();
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int can_do_overlay();
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void redraw_overlay();
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/**
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Creates a new Fl_Overlay_Window widget using the given
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position, size, and label (title) string. If the
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positions (x,y) are not given, then the window manager
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will choose them.
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*/
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Fl_Overlay_Window(int W, int H, const char *l=0)
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: Fl_Double_Window(W,H,l) {overlay_ = 0; force_doublebuffering_=1; image(0); }
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/**
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See Fl_Overlay_Window::Fl_Overlay_Window(int W, int H, const char *l=0)
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*/
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Fl_Overlay_Window(int X, int Y, int W, int H, const char *l=0)
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: Fl_Double_Window(X,Y,W,H,l) {overlay_ = 0; force_doublebuffering_=1; image(0); }
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void show(int a, char **b) {Fl_Double_Window::show(a,b);}
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};
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#endif
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//
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// End of "$Id$".
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//
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