89f9671b40
Under non-macOS platforms, the key is to call glUseProgram(0); after having used OpenGL 3 which allows to then use OpenGL 1 and draw FLTK widgets over the OpenGL3 scene. Under macOS, this is impossible because macOS GL3 contexts are not compatible with GL1. The solution implemented here is to create an additional Fl_Gl_Window placed above and sized as the GL3-based window, to give it a non opaque, GL1-based context, and to put the FLTK widgets in that additional window.
203 lines
6.1 KiB
Objective-C
203 lines
6.1 KiB
Objective-C
//
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// Mac header file for the Fast Light Tool Kit (FLTK).
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//
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// Copyright 1998-2018 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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// https://www.fltk.org/COPYING.php
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//
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// Please see the following page on how to report bugs and issues:
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//
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// https://www.fltk.org/bugs.php
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//
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// Do not directly include this file, instead use <FL/platform.H>. It will
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// include this file if "__APPLE__" is defined. This is to encourage
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// portability of even the system-specific code...
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#ifndef FL_DOXYGEN
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#if !defined(FL_PLATFORM_H)
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# error "Never use <FL/mac.H> directly; include <FL/platform.H> instead."
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#endif // !FL_PLATFORM_H
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#ifdef __OBJC__
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@class NSOpenGLContext;
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#elif defined(__cplusplus)
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class NSOpenGLContext;
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#endif /* __OBJC__ */
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extern NSOpenGLContext *fl_mac_glcontext(GLContext rc);
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#ifdef __OBJC__
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@class FLWindow; // a subclass of the NSWindow Cocoa class
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typedef FLWindow *Window;
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#else
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typedef class FLWindow *Window; // pointer to the FLWindow objective-c class
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#endif // __OBJC__
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#include <FL/Fl_Widget.H> // for Fl_Callback
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#if (defined(FL_LIBRARY) || defined(FL_INTERNALS)) // this part must be compiled when building the FLTK libraries
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// Standard MacOS C/C++ includes...
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#include <ApplicationServices/ApplicationServices.h>
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#undef check // because of Fl::check()
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#ifndef MAC_OS_X_VERSION_10_4
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#define MAC_OS_X_VERSION_10_4 1040
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#endif
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#ifndef MAC_OS_X_VERSION_10_5
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#define MAC_OS_X_VERSION_10_5 1050
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#endif
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#ifndef MAC_OS_X_VERSION_10_6
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#define MAC_OS_X_VERSION_10_6 1060
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#endif
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#ifndef MAC_OS_X_VERSION_10_7
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#define MAC_OS_X_VERSION_10_7 1070
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#endif
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#ifndef MAC_OS_X_VERSION_10_8
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#define MAC_OS_X_VERSION_10_8 1080
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#endif
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#ifndef MAC_OS_X_VERSION_10_9
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#define MAC_OS_X_VERSION_10_9 1090
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#endif
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#ifndef MAC_OS_X_VERSION_10_10
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#define MAC_OS_X_VERSION_10_10 101000
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#endif
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#ifndef MAC_OS_X_VERSION_10_11
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#define MAC_OS_X_VERSION_10_11 101100
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#endif
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#ifndef MAC_OS_X_VERSION_10_12
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#define MAC_OS_X_VERSION_10_12 101200
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#endif
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#ifndef MAC_OS_X_VERSION_10_13
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#define MAC_OS_X_VERSION_10_13 101300
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#endif
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#ifndef MAC_OS_X_VERSION_10_14
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#define MAC_OS_X_VERSION_10_14 101400
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#endif
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#ifndef MAC_OS_X_VERSION_10_15
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#define MAC_OS_X_VERSION_10_15 101500
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#endif
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#ifndef MAC_OS_X_VERSION_10_16
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#define MAC_OS_X_VERSION_10_16 101600
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#endif
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#ifndef MAC_OS_VERSION_11_0
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#define MAC_OS_VERSION_11_0 110000
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#endif
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#ifndef MAC_OS_VERSION_12_0
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#define MAC_OS_VERSION_12_0 120000
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#endif
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#ifndef MAC_OS_VERSION_13_0
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#define MAC_OS_VERSION_13_0 130000
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#endif
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#ifndef NSINTEGER_DEFINED // appears with 10.5 in NSObjCRuntime.h
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#if defined(__LP64__) && __LP64__
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typedef long NSInteger;
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typedef unsigned long NSUInteger;
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#else
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typedef int NSInteger;
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typedef unsigned int NSUInteger;
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#endif
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#endif
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#if MAC_OS_X_VERSION_MAX_ALLOWED < MAC_OS_X_VERSION_10_4
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typedef CGImageAlphaInfo CGBitmapInfo;
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#endif
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struct flCocoaRegion {
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int count;
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CGRect *rects;
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}; // a region is the union of a series of rectangles
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#ifndef CGFLOAT_DEFINED //appears with 10.5 in CGBase.h
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#if defined(__LP64__) && __LP64__
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typedef double CGFloat;
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#else
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typedef float CGFloat;
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#endif
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#endif // CGFLOAT_DEFINED
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#else
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typedef struct CGContext* CGContextRef;
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#endif // FL_LIBRARY || FL_INTERNALS
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extern CGContextRef fl_gc;
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#endif // FL_DOXYGEN
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/** \file
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Mac OS X-specific symbols.
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*/
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/** \defgroup group_macosx Mac OS X-specific symbols
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Mac OS X-specific symbols declared in <FL/platform.H>
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\sa \ref osissues_macos
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\{ */
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/**
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Attaches a callback to the "About myprog" item of the system application menu.
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For back-compatibility.
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Equivalent to Fl_Sys_Menu_Bar::about(Fl_Callback *cb, void *user_data).
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*/
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void fl_mac_set_about(Fl_Callback *cb, void *user_data, int shortcut = 0);
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/** Returns the macOS-specific graphics context for the current window */
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extern CGContextRef fl_mac_gc();
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/** Returns the macOS-specific window reference corresponding to the given Fl_Window object */
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extern FLWindow *fl_mac_xid(const Fl_Window *win);
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/** Returns the Fl_Window corresponding to the given macOS-specific window reference */
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extern Fl_Window *fl_mac_find(FLWindow *);
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class Fl_Gl_Window;
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/** Call this to make possible the addition of FLTK widgets to a GL3-using Fl_Gl_Window.
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\see \ref opengl3 */
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extern Fl_Gl_Window *fl_mac_prepare_add_widgets_to_GL3_win(Fl_Gl_Window *);
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/** The version number of the running Mac OS X (e.g., 100604 for 10.6.4, 101300 for 10.13).
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FLTK initializes this global variable before main() begins running. If
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the value is needed in a static initializer, a previous call to Fl::system_driver()
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makes sure \ref fl_mac_os_version has been initialized.
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*/
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extern int fl_mac_os_version;
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struct Fl_Menu_Item;
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class Fl_Mac_App_Menu {
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public:
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/** Localizable text for the "About xxx" application menu item */
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static const char *about;
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/** Localizable text for the "Print Front Window" application menu item.
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This menu item and next one won't be displayed if Fl_Mac_App_Menu::print
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is set to an empty string.
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*/
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static const char *print;
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/** Localizable text for the "Print Front Window" application menu item. */
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static const char *print_no_titlebar;
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/** Localizable text for the "Toggle print titlebar" application menu item. */
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static const char *toggle_print_titlebar;
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/** Localizable text for the "Services" application menu item */
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static const char *services;
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/** Localizable text for the "Hide xxx" application menu item */
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static const char *hide;
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/** Localizable text for the "Hide Others" application menu item */
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static const char *hide_others;
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/** Localizable text for the "Show All" application menu item */
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static const char *show;
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/** Localizable text for the "Quit xxx" application menu item */
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static const char *quit;
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/** Adds custom menu item(s) to the application menu of the system menu bar.
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They are positioned after the "Print Front Window / Toggle printing of titlebar" items, or at their place
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if they were removed with <tt>Fl_Mac_App_Menu::print = ""</tt>.
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\param m zero-ending array of Fl_Menu_Item 's.
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*/
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static void custom_application_menu_items(const Fl_Menu_Item *m);
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};
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/** @} */
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