
git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12347 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
87 lines
2.0 KiB
C++
87 lines
2.0 KiB
C++
//
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// "$Id$"
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//
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// Overlay window code for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2016 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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// A window using double-buffering and able to draw an overlay
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// on top of that. Uses the hardware to draw the overlay if
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// possible, otherwise it just draws in the front buffer.
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#include <FL/Fl.H>
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#include <FL/Fl_Overlay_Window.H>
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#include <FL/Fl_Window_Driver.H>
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Fl_Overlay_Window::Fl_Overlay_Window(int W, int H, const char *l)
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: Fl_Double_Window(W,H,l)
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{
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overlay_ = 0;
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image(0);
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}
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Fl_Overlay_Window::Fl_Overlay_Window(int X, int Y, int W, int H, const char *l)
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: Fl_Double_Window(X,Y,W,H,l)
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{
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overlay_ = 0;
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image(0);
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}
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void Fl_Overlay_Window::show() {
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Fl_Double_Window::show();
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if (overlay_ && overlay_ != this) overlay_->show();
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}
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void Fl_Overlay_Window::hide() {
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Fl_Double_Window::hide();
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}
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void Fl_Overlay_Window::flush()
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{
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driver()->flush_overlay();
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}
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void Fl_Overlay_Window::resize(int X, int Y, int W, int H) {
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Fl_Double_Window::resize(X,Y,W,H);
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if (overlay_ && overlay_!=this) overlay_->resize(0,0,w(),h());
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}
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/**
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Destroys the window and all child widgets.
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*/
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Fl_Overlay_Window::~Fl_Overlay_Window() {
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hide();
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// delete overlay; this is done by ~Fl_Group
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}
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int Fl_Overlay_Window::can_do_overlay() {
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return driver()->can_do_overlay();
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}
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/**
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Call this to indicate that the overlay data has changed and needs to
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be redrawn. The overlay will be clear until the first time this is
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called, so if you want an initial display you must call this after
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calling show().
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*/
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void Fl_Overlay_Window::redraw_overlay() {
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driver()->redraw_overlay();
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}
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//
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// End of "$Id$".
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//
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