xfnw
856abd2f7d
git-subtree-dir: sys/src/cmd/gopher git-subtree-split: 3680728b631ed65201b397f4ae3e5d1b03be42f9
204 lines
8.8 KiB
C
204 lines
8.8 KiB
C
//#pragma src "/sys/src/libpanel"
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//#pragma lib "libpanel.a"
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typedef struct Scroll Scroll;
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typedef struct Panel Panel; /* a Graphical User Interface element */
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typedef struct Rtext Rtext; /* formattable text */
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typedef void Icon; /* Always used as Icon * -- Image or char */
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typedef struct Idol Idol; /* A picture/text combo */
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struct Scroll{
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Point pos, size;
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};
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struct Rtext{
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int flags; /* responds to hits? text selection? */
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void *user; /* user data */
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int space; /* how much space before, if no break */
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int indent; /* how much space before, after a break */
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int voff; /* vertical offset (for subscripts and superscripts) */
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Image *b; /* what to display, if nonzero */
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Panel *p; /* what to display, if nonzero and b==0 */
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Font *font; /* font in which to draw text */
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char *text; /* what to display, if b==0 and p==0 */
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Rtext *next; /* next piece */
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/* private below */
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Rtext *nextline; /* links line to line */
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Rtext *last; /* last, for append */
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Rectangle r; /* where to draw, if origin were Pt(0,0) */
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int topy; /* y coord of top of line */
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int wid; /* not including space */
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};
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struct Panel{
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Point ipad, pad; /* extra space inside and outside */
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Point fixedsize; /* size of Panel, if FIXED */
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int user; /* available for user */
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void *userp; /* available for user */
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Rectangle r; /* where the Panel goes */
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/* private below */
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Panel *next; /* It's a list! */
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Panel *child, *echild, *parent; /* No, it's a tree! */
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Image *b; /* where we're drawn */
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int flags; /* position flags, see below */
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char *kind; /* what kind of panel? */
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int state; /* for hitting & drawing purposes */
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Point size; /* space for this Panel */
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Point sizereq; /* size requested by this Panel */
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Point childreq; /* total size needed by children */
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Panel *lastmouse; /* who got the last mouse event? */
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Panel *scrollee; /* pointer to scrolled window */
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Panel *xscroller, *yscroller; /* pointers to scroll bars */
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Scroll scr; /* scroll data */
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void *data; /* kind-specific data */
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void (*draw)(Panel *); /* draw panel and children */
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int (*pri)(Panel *, Point); /* priority for hitting */
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int (*hit)(Panel *, Mouse *); /* process mouse event */
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void (*type)(Panel *, Rune); /* process keyboard event */
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Point (*getsize)(Panel *, Point); /* return size, given child size */
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void (*childspace)(Panel *, Point *, Point *); /* child ul & size given our size */
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void (*scroll)(Panel *, int, int, int, int); /* scroll bar to scrollee */
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void (*setscrollbar)(Panel *, int, int, int); /* scrollee to scroll bar */
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void (*free)(Panel *); /* free fields of data when done */
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char* (*snarf)(Panel *); /* snarf text from panel */
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void (*paste)(Panel *, char *); /* paste text into panel */
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};
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/*
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* Panel flags
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*/
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#define PACK 0x0007 /* which side of the parent is the Panel attached to? */
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#define PACKN 0x0000
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#define PACKE 0x0001
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#define PACKS 0x0002
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#define PACKW 0x0003
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#define PACKCEN 0x0004 /* only used by pulldown */
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#define FILLX 0x0008 /* grow horizontally to fill the available space */
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#define FILLY 0x0010 /* grow vertically to fill the available space */
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#define PLACE 0x01e0 /* which side of its space should the Panel adhere to? */
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#define PLACECEN 0x0000
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#define PLACES 0x0020
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#define PLACEE 0x0040
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#define PLACEW 0x0060
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#define PLACEN 0x0080
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#define PLACENE 0x00a0
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#define PLACENW 0x00c0
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#define PLACESE 0x00e0
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#define PLACESW 0x0100
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#define EXPAND 0x0200 /* use up all extra space in the parent */
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#define FIXED 0x0c00 /* don't pass children's size requests through to parent */
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#define FIXEDX 0x0400
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#define FIXEDY 0x0800
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#define MAXX 0x1000 /* make x size as big as biggest sibling's */
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#define MAXY 0x2000 /* make y size as big as biggest sibling's */
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#define BITMAP 0x4000 /* text argument is a bitmap, not a string */
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#define NOBORDER 0x8000
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/* pldefs.h flags 0x08000-0x40000 */
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#define IGNORE 0x080000 /* ignore this panel totally */
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#define USERFL 0x100000 /* start of user flag */
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/*
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* An extra bit in Mouse.buttons
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*/
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#define OUT 8 /* Mouse.buttons bit, set when mouse leaves Panel */
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/*
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* Priorities
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*/
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#define PRI_NORMAL 0 /* ordinary panels */
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#define PRI_POPUP 1 /* popup menus */
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#define PRI_SCROLLBAR 2 /* scroll bars */
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/* Rtext.flags */
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#define PL_HOT 1
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#define PL_SEL 2
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#define PL_STR 4
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#define PL_HEAD 8
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Panel *plkbfocus; /* the panel in keyboard focus */
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int plinit(int); /* initialization */
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void plpack(Panel *, Rectangle); /* figure out where to put the Panel & children */
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void plmove(Panel *, Point); /* move an already-packed panel to a new location */
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void pldraw(Panel *, Image *); /* display the panel on the bitmap */
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void plfree(Panel *); /* give back space */
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void plgrabkb(Panel *); /* this Panel should receive keyboard events */
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void plkeyboard(Rune); /* send a keyboard event to the appropriate Panel */
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void plmouse(Panel *, Mouse *); /* send a Mouse event to a Panel tree */
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void plscroll(Panel *, Panel *, Panel *); /* link up scroll bars */
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char *plentryval(Panel *); /* entry delivers its value */
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void plsetbutton(Panel *, int); /* set or clear the mark on a button */
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void plsetslider(Panel *, int, int); /* set the value of a slider */
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Rune *pleget(Panel *); /* get the text from an edit window */
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int plelen(Panel *); /* get the length of the text from an edit window */
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void plegetsel(Panel *, int *, int *); /* get the selection from an edit window */
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void plepaste(Panel *, Rune *, int); /* paste in an edit window */
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void plesel(Panel *, int, int); /* set the selection in an edit window */
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void plescroll(Panel *, int); /* scroll an edit window */
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Scroll plgetscroll(Panel *); /* get scrolling information from panel */
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void plsetscroll(Panel *, Scroll); /* set scrolling information */
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void plplacelabel(Panel *, int); /* label placement */
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/*
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* Panel creation & reinitialization functions
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*/
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Panel *plbutton(Panel *pl, int, Icon *, void (*)(Panel *pl, int));
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Panel *plcanvas(Panel *pl, int, void (*)(Panel *), void (*)(Panel *pl, Mouse *));
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Panel *plcheckbutton(Panel *pl, int, Icon *, void (*)(Panel *pl, int, int));
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Panel *pledit(Panel *, int, Point, Rune *, int, void (*)(Panel *));
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Panel *plentry(Panel *pl, int, int, char *, void (*)(Panel *pl, char *));
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Panel *plframe(Panel *pl, int);
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Panel *plgroup(Panel *pl, int);
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Panel *plidollist(Panel*, int, Point, Font*, Idol*, void (*)(Panel*, int, void*));
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Panel *pllabel(Panel *pl, int, Icon *);
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Panel *pllist(Panel *pl, int, char *(*)(Panel *, int), int, void(*)(Panel *pl, int, int));
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Panel *plmenu(Panel *pl, int, Icon **, int, void (*)(int, int));
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Panel *plmenubar(Panel *pl, int, int, Icon *, Panel *pl, Icon *, ...);
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Panel *plmessage(Panel *pl, int, int, char *);
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Panel *plpopup(Panel *pl, int, Panel *pl, Panel *pl, Panel *pl);
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Panel *plpulldown(Panel *pl, int, Icon *, Panel *pl, int);
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Panel *plradiobutton(Panel *pl, int, Icon *, void (*)(Panel *pl, int, int));
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Panel *plscrollbar(Panel *plparent, int flags);
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Panel *plslider(Panel *pl, int, Point, void(*)(Panel *pl, int, int, int));
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Panel *pltextview(Panel *, int, Point, Rtext *, void (*)(Panel *, int, Rtext *));
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void plinitbutton(Panel *, int, Icon *, void (*)(Panel *, int));
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void plinitcanvas(Panel *, int, void (*)(Panel *), void (*)(Panel *, Mouse *));
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void plinitcheckbutton(Panel *, int, Icon *, void (*)(Panel *, int, int));
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void plinitedit(Panel *, int, Point, Rune *, int, void (*)(Panel *));
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void plinitentry(Panel *, int, int, char *, void (*)(Panel *, char *));
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void plinitframe(Panel *, int);
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void plinitgroup(Panel *, int);
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void plinitidollist(Panel*, int, Point, Font*, Idol*, void (*)(Panel*, int, void*));
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void plinitlabel(Panel *, int, Icon *);
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void plinitlist(Panel *, int, char *(*)(Panel *, int), int, void(*)(Panel *, int, int));
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void plinitmenu(Panel *, int, Icon **, int, void (*)(int, int));
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void plinitmessage(Panel *, int, int, char *);
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void plinitpopup(Panel *, int, Panel *, Panel *, Panel *);
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void plinitpulldown(Panel *, int, Icon *, Panel *, int);
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void plinitradiobutton(Panel *, int, Icon *, void (*)(Panel *, int, int));
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void plinitscrollbar(Panel *parent, int flags);
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void plinitslider(Panel *, int, Point, void(*)(Panel *, int, int, int));
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void plinittextview(Panel *, int, Point, Rtext *, void (*)(Panel *, int, Rtext *));
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/*
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* Rtext constructors & destructor
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*/
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Rtext *plrtstr(Rtext **, int, int, int, Font *, char *, int, void *);
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Rtext *plrtbitmap(Rtext **, int, int, int, Image *, int, void *);
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Rtext *plrtpanel(Rtext **, int, int, int, Panel *, void *);
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void plrtfree(Rtext *);
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void plrtseltext(Rtext *, Rtext *, Rtext *);
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char *plrtsnarftext(Rtext *);
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int plgetpostextview(Panel *);
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void plsetpostextview(Panel *, int);
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/*
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* Idols
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*/
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Idol *plmkidol(Idol**, Image*, Image*, char*, void*);
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void plfreeidol(Idol*);
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Point plidolsize(Idol*, Font*, int);
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void *plidollistgetsel(Panel*);
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/*
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* Snarf
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*/
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void plputsnarf(char *);
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char *plgetsnarf(void);
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void plsnarf(Panel *); /* snarf a panel */
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void plpaste(Panel *); /* paste a panel */
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