Propogated a pointer-check from menu-attach to menu-detach. (Apparently,
in some cases, the Menu member variable can be NULL.) Corrected the menu-attach code to make sure that both Window and Menu pointers are non-NULL (rather than "at least one"). Rewrote button-checks to more simply and more clearly assert that the "menu button" is a valid button for menu actions: Instead of laboriously comparing against the three valid buttons (0, 1, 2 or GLUT_BUTTON_*), we do a simpler range-check and the upper bound is {FREEGLUT_MAX_MENUS}, allowing us to change the number of menuable buttons fairly easily in the future. Also deleted a few say-nothing-new comments. git-svn-id: https://svn.code.sf.net/p/freeglut/code/trunk@250 7f0cb862-5218-0410-a997-914c9d46530a
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@ -992,20 +992,10 @@ void FGAPIENTRY glutRemoveMenuItem( int item )
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void FGAPIENTRY glutAttachMenu( int button )
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{
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freeglut_assert_ready;
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/*
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* There must be a current window and a current menu set:
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*/
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freeglut_return_if_fail( fgStructure.Window != NULL || fgStructure.Menu != NULL );
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/*
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* Make sure the button value is valid (0, 1 or 2, see freeglut.h)
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*/
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freeglut_return_if_fail( button == GLUT_LEFT_BUTTON || button == GLUT_MIDDLE_BUTTON || button == GLUT_RIGHT_BUTTON );
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/*
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* It is safe now to attach the menu
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*/
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freeglut_return_if_fail( fgStructure.Window );
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freeglut_return_if_fail( fgStructure.Menu );
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freeglut_return_if_fail( button >= 0 );
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freeglut_return_if_fail( button < FREEGLUT_MAX_MENUS );
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fgStructure.Window->Menu[ button ] = fgStructure.Menu;
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/*
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@ -1020,20 +1010,10 @@ void FGAPIENTRY glutAttachMenu( int button )
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void FGAPIENTRY glutDetachMenu( int button )
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{
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freeglut_assert_ready;
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/*
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* There must be a current window set:
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*/
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freeglut_return_if_fail( fgStructure.Window != NULL );
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/*
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* Make sure the button value is valid (0, 1 or 2, see freeglut.h)
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*/
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freeglut_return_if_fail( button != 0 && button != 1 && button != 2 );
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/*
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* It is safe now to detach the menu
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*/
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freeglut_return_if_fail( fgStructure.Menu );
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freeglut_return_if_fail( button >= 0 );
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freeglut_return_if_fail( button < FREEGLUT_MAX_MENUS );
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fgStructure.Window->Menu[ button ] = NULL;
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}
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