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64 lines
2.1 KiB
C
64 lines
2.1 KiB
C
/* ------------ menu.h ------------- */
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#ifndef MENU_H
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#define MENU_H
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#define DF_MAXPULLDOWNS 15
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#define DF_MAXSELECTIONS 20
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#define DF_MAXCASCADES 3 /* nesting level of cascaded menus */
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/* ----------- popdown menu selection structure
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one for each selection on a popdown menu --------- */
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struct DfPopDown {
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unsigned char *SelectionTitle; /* title of the selection */
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int ActionId; /* the command executed */
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int Accelerator; /* the accelerator key */
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int Attrib; /* DF_INACTIVE | DF_CHECKED | DF_TOGGLE | DF_CASCADED*/
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char *help; /* Help mnemonic */
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};
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/* ----------- popdown menu structure
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one for each popdown menu on the menu bar -------- */
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typedef struct DfMenu {
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char *Title; /* title on the menu bar */
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void (*PrepMenu)(void *, struct DfMenu *); /* function */
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char *StatusText; /* text for the status bar */
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int CascadeId; /* command id of cascading selection */
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int Selection; /* most recent selection */
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struct DfPopDown Selections[DF_MAXSELECTIONS+1];
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} DF_MENU;
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/* ----- one for each menu bar ----- */
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typedef struct DfMenuBar {
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int ActiveSelection;
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DF_MENU PullDown[DF_MAXPULLDOWNS+1];
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} DF_MBAR;
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/* --------- macros to define a menu bar with
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popdowns and selections ------------- */
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#define DF_SEPCHAR "\xc4"
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#define DF_DEFMENU(m) DF_MBAR m = {-1,{
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#define DF_POPDOWN(ttl,func,stat) {ttl,func,stat,-1,0,{
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#define DF_CASCADED_POPDOWN(id,func) {NULL,func,NULL,id,0,{
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#define DF_SELECTION(stxt,acc,id,attr) {stxt,acc,id,attr,#acc},
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#define DF_SEPARATOR {DF_SEPCHAR},
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#define DF_ENDPOPDOWN {NULL}}},
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#define DF_ENDMENU {(void *)-1} }};
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/* -------- menu selection attributes -------- */
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#define DF_INACTIVE 1
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#define DF_CHECKED 2
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#define DF_TOGGLE 4
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#define DF_CASCADED 8
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/* --------- the standard menus ---------- */
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extern DF_MBAR DfMainMenu;
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extern DF_MBAR DfSystemMenu;
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extern DF_MBAR *DfActiveMenuBar;
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int DfMenuHeight(struct DfPopDown *);
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int DfMenuWidth(struct DfPopDown *);
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#endif
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