dwm.h

/* macros */
#define BUTTONMASK              (ButtonPressMask|ButtonReleaseMask)
#define CLEANMASK(mask)         (mask & ~(numlockmask|LockMask) & (ShiftMask|ControlMask|Mod1Mask|Mod2Mask|Mod3Mask|Mod4Mask|Mod5Mask))
#define INTERSECT(x,y,w,h,m)    (MAX(0, MIN((x)+(w),(m)->wx+(m)->ww) - MAX((x),(m)->wx)) \
                               * MAX(0, MIN((y)+(h),(m)->wy+(m)->wh) - MAX((y),(m)->wy)))
#define ISVISIBLE(C)            ((C->tags & C->mon->tagset[C->mon->seltags]))
#define LENGTH(X)               (sizeof X / sizeof X[0])
#define MAX(A, B)               ((A) > (B) ? (A) : (B))
#define MIN(A, B)               ((A) < (B) ? (A) : (B))
#define MOUSEMASK               (BUTTONMASK|PointerMotionMask)
#define WIDTH(X)                ((X)->w + 2 * (X)->bw)
#define HEIGHT(X)               ((X)->h + 2 * (X)->bw)
#define TAGMASK                 ((1 << LENGTH(tags)) - 1)
#define TEXTW(X)                (textnw(X, strlen(X)) + dc.font.height)

#define SYSTEM_TRAY_REQUEST_DOCK    0
#define _NET_SYSTEM_TRAY_ORIENTATION_HORZ 0

/* XEMBED messages */
#define XEMBED_EMBEDDED_NOTIFY      0
#define XEMBED_WINDOW_ACTIVATE      1
#define XEMBED_FOCUS_IN             4
#define XEMBED_MODALITY_ON         10

#define XEMBED_MAPPED              (1 << 0)
#define XEMBED_WINDOW_ACTIVATE      1
#define XEMBED_WINDOW_DEACTIVATE    2

#define VERSION_MAJOR               0
#define VERSION_MINOR               0
#define XEMBED_EMBEDDED_VERSION (VERSION_MAJOR << 16) | VERSION_MINOR

/* enums */
enum { CurNormal, CurResize, CurMove, CurLast };        /* cursor */
enum { ColBorder, ColFG, ColBG, ColLast };              /* color */
enum { NetSupported, NetSystemTray, NetSystemTrayOP, NetSystemTrayOrientation,
       NetWMName, NetWMState,
#ifdef WITH_OPACITY      
       NetWMWindowOpacity,
#endif
       NetWMFullscreen, NetActiveWindow, NetWMWindowType,
       NetWMWindowTypeDialog, NetLast }; /* EWMH atoms */
enum { Manager, Xembed, XembedInfo, XLast }; /* Xembed atoms */
enum { WMProtocols, WMDelete, WMState, WMTakeFocus, WMLast }; /* default atoms */
enum { ClkTagBar, ClkLtSymbol, ClkStatusText, ClkWinTitle,
       ClkClientWin, ClkRootWin, ClkLast };             /* clicks */

typedef union {
    int i;
    unsigned int ui;
    float f;
    const void *v;
} Arg;

typedef struct {
    unsigned int click;
    unsigned int mask;
    unsigned int button;
    void (*func)(const Arg *arg);
    const Arg arg;
} Button;

typedef struct Monitor Monitor;
typedef struct Client Client;
struct Client {
    char name[256];
    float mina, maxa;
    int x, y, w, h;
    int oldx, oldy, oldw, oldh;
    int basew, baseh, incw, inch, maxw, maxh, minw, minh;
    int bw, oldbw;
    unsigned int tags;
    Bool isfixed, isfloating, isurgent, neverfocus, oldstate, isfullscreen;
    Client *next;
    Client *snext;
    Monitor *mon;
    Window win;
#ifdef WITH_OPACITY
    double opacity;
    Bool manualOpacity; /* don't mess with the opacity */
#endif
};

typedef struct {
    int x, y, w, h;
    XftColor norm[ColLast];
    XftColor sel[ColLast];
    Drawable drawable;
    GC gc;
#ifdef WITH_PANGO
    struct {
        XftColor norm[ColLast];
        XftColor sel[ColLast];
        XftDraw *drawable;
    } xft;
    struct {
        int ascent;
        int descent;
        int height;
        PangoLayout *layout;
    } font;
#else
    struct {
        int ascent;
        int descent;
        int height;
        XftFont *xfont;
    } font;
#endif
} DC; /* draw context */

typedef struct {
    unsigned int mod;
    KeySym keysym;
    void (*func)(const Arg *);
    const Arg arg;
} Key;

typedef struct {
    const char *symbol;
    void (*arrange)(Monitor *);
} Layout;

struct Monitor {
    char ltsymbol[16];
    float mfact;
    int nmaster;
    int num;
    int by;               /* bar geometry */
    int mx, my, mw, mh;   /* screen size */
    int wx, wy, ww, wh;   /* window area  */
    unsigned int seltags;
    unsigned int sellt;
    unsigned int tagset[2];
    Bool showbar;
    Bool topbar;
    Client *clients;
    Client *sel;
    Client *stack;
    Monitor *next;
    Window barwin;
    const Layout *lt[2];
};

typedef struct {
    const char *class;
    const char *instance;
    const char *title;
    unsigned int tags;
    Bool isfloating;
    int monitor;
#ifdef WITH_OPACITY
    double opacity;
#endif
} Rule;

typedef struct Systray   Systray;
struct Systray {
    Window win;
    Client *icons;
};

/* function declarations */
static void applyrules(Client *c);
static Bool applysizehints(Client *c, int *x, int *y, int *w, int *h, Bool interact);
static void arrange(Monitor *m);
static void arrangemon(Monitor *m);
static void attach(Client *c);
static void attachstack(Client *c);
static void buttonpress(XEvent *e);
static void checkotherwm(void);
static void cleanup(void);
static void cleanupmon(Monitor *mon);
static void clearurgent(Client *c);
static void clientmessage(XEvent *e);
static void col(Monitor *);
static void configure(Client *c);
static void configurenotify(XEvent *e);
static void configurerequest(XEvent *e);
static Monitor *createmon(void);
static void destroynotify(XEvent *e);
static void detach(Client *c);
static void detachstack(Client *c);
static void die(const char *errstr, ...);
static Monitor *dirtomon(int dir);
static void drawbar(Monitor *m);
static void drawbars(void);
//static void drawsquare(Bool filled, Bool empty, Bool invert, unsigned long col[ColLast]);
//static void drawtext(const char *text, unsigned long col[ColLast], Bool invert);
static void drawsquare(Bool filled, Bool empty, Bool invert, XftColor col[ColLast]);
static void drawtext(const char *text, XftColor col[ColLast], Bool invert);
static void enternotify(XEvent *e);
static void expose(XEvent *e);
#ifdef WITH_OPACITY
static void window_opacity_set(Client *c, double opacity);    
#endif
static void focus(Client *c);
static void focusin(XEvent *e);
static void focusmon(const Arg *arg);
static void focusstack(const Arg *arg);
static Atom getatomprop(Client *c, Atom prop);
//static unsigned long getcolor(const char *colstr);
#ifdef WITH_PANGO
static XftColor getcolor(const char *colstr, XftColor *color);
#else
static XftColor getcolor(const char *colstr);
#endif
static Bool getrootptr(int *x, int *y);
static long getstate(Window w);
static unsigned int getsystraywidth();
static Bool gettextprop(Window w, Atom atom, char *text, unsigned int size);
static void grabbuttons(Client *c, Bool focused);
static void grabkeys(void);
static void incnmaster(const Arg *arg);
static void initfont(const char *fontstr);
static void keypress(XEvent *e);
static void killclient(const Arg *arg);
static void manage(Window w, XWindowAttributes *wa);
static void mappingnotify(XEvent *e);
static void maprequest(XEvent *e);
static void monocle(Monitor *m);
static void motionnotify(XEvent *e);
static void movemouse(const Arg *arg);
static Client *nexttiled(Client *c);
static void pop(Client *);
static void propertynotify(XEvent *e);
static void quit(const Arg *arg);
static Monitor *recttomon(int x, int y, int w, int h);
static void removesystrayicon(Client *i);
static void resize(Client *c, int x, int y, int w, int h, Bool interact);
static void resizebarwin(Monitor *m);
static void resizeclient(Client *c, int x, int y, int w, int h);
static void resizemouse(const Arg *arg);
static void resizerequest(XEvent *e);
static void restack(Monitor *m);
static void run(void);
static void scan(void);
static Bool sendevent(Window w, Atom proto, int m, long d0, long d1, long d2, long d3, long d4);
static void sendmon(Client *c, Monitor *m);
static void setclientstate(Client *c, long state);
static void setfocus(Client *c);
static void setfullscreen(Client *c, Bool fullscreen);
static void setlayout(const Arg *arg);
static void setmfact(const Arg *arg);
static void setup(void);
static void showhide(Client *c);
static void sigchld(int unused);
static void spawn(const Arg *arg);
static void tag(const Arg *arg);
static void tagmon(const Arg *arg);
static int textnw(const char *text, unsigned int len);
static void tile(Monitor *);
static void togglebar(const Arg *arg);
static void togglefloating(const Arg *arg);
static void toggletag(const Arg *arg);
static void toggleview(const Arg *arg);
static void unfocus(Client *c, Bool setfocus);
static void unmanage(Client *c, Bool destroyed);
static void unmapnotify(XEvent *e);
static Bool updategeom(void);
static void updatebarpos(Monitor *m);
static void updatebars(void);
static void updatenumlockmask(void);
static void updatesizehints(Client *c);
static void updatestatus(void);
static void updatesystray(void);
static void updatesystrayicongeom(Client *i, int w, int h);
static void updatesystrayiconstate(Client *i, XPropertyEvent *ev);
static void updatewindowtype(Client *c);
static void updatetitle(Client *c);
static void updatewmhints(Client *c);
static void view(const Arg *arg);
static Client *wintoclient(Window w);
static Monitor *wintomon(Window w);
static Client *wintosystrayicon(Window w);
static int xerror(Display *dpy, XErrorEvent *ee);
static int xerrordummy(Display *dpy, XErrorEvent *ee);
static int xerrorstart(Display *dpy, XErrorEvent *ee);
static void zoom(const Arg *arg);

static void keyrelease(XEvent *e);
static void combotag(const Arg *arg);
static void comboview(const Arg *arg);

/* variables */
static Systray *systray = NULL;
static unsigned long systrayorientation = _NET_SYSTEM_TRAY_ORIENTATION_HORZ;
static const char broken[] = "broken";
#ifdef WITH_PANGO
static char stext[512];
#else
static char stext[256];
#endif
static int screen;
static int sw, sh;           /* X display screen geometry width, height */
static int bh, blw = 0;      /* bar geometry */
static int (*xerrorxlib)(Display *, XErrorEvent *);
static unsigned int numlockmask = 0;
static void (*handler[LASTEvent]) (XEvent *) = {
    [ButtonPress] = buttonpress,
    [ButtonRelease] = keyrelease,
    [ClientMessage] = clientmessage,
    [ConfigureRequest] = configurerequest,
    [ConfigureNotify] = configurenotify,
    [DestroyNotify] = destroynotify,
    [EnterNotify] = enternotify,
    [Expose] = expose,
    [FocusIn] = focusin,
    [KeyRelease] = keyrelease,
    [KeyPress] = keypress,
    [MappingNotify] = mappingnotify,
    [MapRequest] = maprequest,
    [MotionNotify] = motionnotify,
    [PropertyNotify] = propertynotify,
    [ResizeRequest] = resizerequest,
    [UnmapNotify] = unmapnotify
};
static Atom wmatom[WMLast], netatom[NetLast], xatom[XLast];
static Bool running = True;
static Cursor cursor[CurLast];
static Display *dpy;
static DC dc;
static Monitor *mons = NULL, *selmon = NULL;
static Window root;