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decoupled draw.c from dmenu & dinput

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This commit is contained in:
Connor Lane Smith
2010-06-24 16:18:18 +01:00
parent 6c1d0e4d60
commit 96c65400cc
4 changed files with 110 additions and 116 deletions
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40
dinput.c
View File

@ -38,20 +38,18 @@ static char *prompt = NULL;
static char text[4096]; static char text[4096];
static int promptw = 0; static int promptw = 0;
static int ret = 0; static int ret = 0;
static int screen;
static unsigned int cursor = 0; static unsigned int cursor = 0;
static unsigned int numlockmask = 0; static unsigned int numlockmask = 0;
static unsigned int mw, mh;
static Bool running = True; static Bool running = True;
static Window win; static DC dc;
static Display *dpy;
Display *dpy; static Window win, parent;
DC dc;
int screen;
unsigned int mw, mh;
Window parent;
void void
cleanup(void) { cleanup(void) {
drawcleanup(); cleanupdraw(&dc);
XDestroyWindow(dpy, win); XDestroyWindow(dpy, win);
XUngrabKeyboard(dpy, CurrentTime); XUngrabKeyboard(dpy, CurrentTime);
} }
@ -60,7 +58,7 @@ void
drawcursor(void) { drawcursor(void) {
XRectangle r = { dc.x, dc.y + 2, 1, dc.font.height - 2 }; XRectangle r = { dc.x, dc.y + 2, 1, dc.font.height - 2 };
r.x += textnw(text, cursor) + dc.font.height / 2; r.x += textnw(&dc, text, cursor) + dc.font.height / 2;
XSetForeground(dpy, dc.gc, dc.norm[ColFG]); XSetForeground(dpy, dc.gc, dc.norm[ColFG]);
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1);
@ -73,15 +71,15 @@ drawinput(void)
dc.y = 0; dc.y = 0;
dc.w = mw; dc.w = mw;
dc.h = mh; dc.h = mh;
drawtext(NULL, dc.norm); drawtext(&dc, NULL, dc.norm);
/* print prompt? */ /* print prompt? */
if(prompt) { if(prompt) {
dc.w = promptw; dc.w = promptw;
drawtext(prompt, dc.sel); drawtext(&dc, prompt, dc.sel);
dc.x += dc.w; dc.x += dc.w;
} }
dc.w = mw - dc.x; dc.w = mw - dc.x;
drawtext(*text ? text : NULL, dc.norm); drawtext(&dc, *text ? text : NULL, dc.norm);
drawcursor(); drawcursor();
XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0); XCopyArea(dpy, dc.drawable, win, dc.gc, 0, 0, mw, mh, 0, 0);
XFlush(dpy); XFlush(dpy);
@ -269,15 +267,21 @@ setup(Bool topbar) {
} }
XFreeModifiermap(modmap); XFreeModifiermap(modmap);
initfont(font); dc.dpy = dpy;
dc.norm[ColBG] = getcolor(&dc, normbgcolor);
dc.norm[ColFG] = getcolor(&dc, normfgcolor);
dc.sel[ColBG] = getcolor(&dc, selbgcolor);
dc.sel[ColFG] = getcolor(&dc, selfgcolor);
initfont(&dc, font);
fprintf(stderr, "dc.font.xfont: %u\n", (size_t)dc.font.xfont);
/* menu window */ /* input window */
wa.override_redirect = True; wa.override_redirect = True;
wa.background_pixmap = ParentRelative; wa.background_pixmap = ParentRelative;
wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask | VisibilityChangeMask; wa.event_mask = ExposureMask | ButtonPressMask | KeyPressMask | VisibilityChangeMask;
/* menu window geometry */ /* input window geometry */
mh = (dc.font.height + 2); mh = dc.font.height + 2;
#if XINERAMA #if XINERAMA
if(parent == RootWindow(dpy, screen) && XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) { if(parent == RootWindow(dpy, screen) && XineramaIsActive(dpy) && (info = XineramaQueryScreens(dpy, &n))) {
i = 0; i = 0;
@ -309,9 +313,9 @@ setup(Bool topbar) {
DefaultVisual(dpy, screen), DefaultVisual(dpy, screen),
CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
drawsetup(); setupdraw(&dc, win);
if(prompt) if(prompt)
promptw = MIN(textw(prompt), mw / 5); promptw = MIN(textw(&dc, prompt), mw / 5);
cursor = strlen(text); cursor = strlen(text);
XMapRaised(dpy, win); XMapRaised(dpy, win);
} }

49
dmenu.c
View File

@ -55,26 +55,24 @@ static char text[4096];
static int cmdw = 0; static int cmdw = 0;
static int promptw = 0; static int promptw = 0;
static int ret = 0; static int ret = 0;
static int screen;
static unsigned int lines = 0; static unsigned int lines = 0;
static unsigned int numlockmask = 0; static unsigned int numlockmask = 0;
static unsigned int mw, mh;
static Bool running = True; static Bool running = True;
static DC dc;
static Display *dpy;
static Item *allitems = NULL; /* first of all items */ static Item *allitems = NULL; /* first of all items */
static Item *item = NULL; /* first of pattern matching items */ static Item *item = NULL; /* first of pattern matching items */
static Item *sel = NULL; static Item *sel = NULL;
static Item *next = NULL; static Item *next = NULL;
static Item *prev = NULL; static Item *prev = NULL;
static Item *curr = NULL; static Item *curr = NULL;
static Window win; static Window win, parent;
static int (*fstrncmp)(const char *, const char *, size_t) = strncmp; static int (*fstrncmp)(const char *, const char *, size_t) = strncmp;
static char *(*fstrstr)(const char *, const char *) = strstr; static char *(*fstrstr)(const char *, const char *) = strstr;
static void (*calcoffsets)(void) = calcoffsetsh; static void (*calcoffsets)(void) = calcoffsetsh;
Display *dpy;
DC dc;
int screen;
unsigned int mw, mh;
Window parent;
void void
appenditem(Item *i, Item **list, Item **last) { appenditem(Item *i, Item **list, Item **last) {
if(!(*last)) if(!(*last))
@ -92,11 +90,11 @@ calcoffsetsh(void) {
w = promptw + cmdw + (2 * spaceitem); w = promptw + cmdw + (2 * spaceitem);
for(next = curr; next; next = next->right) for(next = curr; next; next = next->right)
if((w += MIN(textw(next->text), mw / 3)) > mw) if((w += MIN(textw(&dc, next->text), mw / 3)) > mw)
break; break;
w = promptw + cmdw + (2 * spaceitem); w = promptw + cmdw + (2 * spaceitem);
for(prev = curr; prev && prev->left; prev = prev->left) for(prev = curr; prev && prev->left; prev = prev->left)
if((w += MIN(textw(prev->left->text), mw / 3)) > mw) if((w += MIN(textw(&dc, prev->left->text), mw / 3)) > mw)
break; break;
} }
@ -143,7 +141,7 @@ cleanup(void) {
free(allitems); free(allitems);
allitems = itm; allitems = itm;
} }
drawcleanup(); cleanupdraw(&dc);
XDestroyWindow(dpy, win); XDestroyWindow(dpy, win);
XUngrabKeyboard(dpy, CurrentTime); XUngrabKeyboard(dpy, CurrentTime);
} }
@ -161,18 +159,18 @@ drawmenu(void) {
dc.y = 0; dc.y = 0;
dc.w = mw; dc.w = mw;
dc.h = mh; dc.h = mh;
drawtext(NULL, dc.norm); drawtext(&dc, NULL, dc.norm);
/* print prompt? */ /* print prompt? */
if(prompt) { if(prompt) {
dc.w = promptw; dc.w = promptw;
drawtext(prompt, dc.sel); drawtext(&dc, prompt, dc.sel);
dc.x += dc.w; dc.x += dc.w;
} }
dc.w = mw - dc.x; dc.w = mw - dc.x;
/* print command */ /* print command */
if(cmdw && item && lines == 0) if(cmdw && item && lines == 0)
dc.w = cmdw; dc.w = cmdw;
drawtext(*text ? text : NULL, dc.norm); drawtext(&dc, *text ? text : NULL, dc.norm);
if(curr) { if(curr) {
if(lines > 0) if(lines > 0)
drawmenuv(); drawmenuv();
@ -189,16 +187,16 @@ drawmenuh(void) {
dc.x += cmdw; dc.x += cmdw;
dc.w = spaceitem; dc.w = spaceitem;
drawtext(curr->left ? "<" : NULL, dc.norm); drawtext(&dc, curr->left ? "<" : NULL, dc.norm);
dc.x += dc.w; dc.x += dc.w;
for(i = curr; i != next; i=i->right) { for(i = curr; i != next; i=i->right) {
dc.w = MIN(textw(i->text), mw / 3); dc.w = MIN(textw(&dc, i->text), mw / 3);
drawtext(i->text, (sel == i) ? dc.sel : dc.norm); drawtext(&dc, i->text, (sel == i) ? dc.sel : dc.norm);
dc.x += dc.w; dc.x += dc.w;
} }
dc.w = spaceitem; dc.w = spaceitem;
dc.x = mw - dc.w; dc.x = mw - dc.w;
drawtext(next ? ">" : NULL, dc.norm); drawtext(&dc, next ? ">" : NULL, dc.norm);
} }
void void
@ -209,11 +207,11 @@ drawmenuv(void) {
dc.h = dc.font.height + 2; dc.h = dc.font.height + 2;
dc.y = dc.h; dc.y = dc.h;
for(i = curr; i != next; i=i->right) { for(i = curr; i != next; i=i->right) {
drawtext(i->text, (sel == i) ? dc.sel : dc.norm); drawtext(&dc, i->text, (sel == i) ? dc.sel : dc.norm);
dc.y += dc.h; dc.y += dc.h;
} }
dc.h = mh - dc.y; dc.h = mh - dc.y;
drawtext(NULL, dc.norm); drawtext(&dc, NULL, dc.norm);
} }
Bool Bool
@ -491,7 +489,12 @@ setup(Bool topbar) {
} }
XFreeModifiermap(modmap); XFreeModifiermap(modmap);
initfont(font); dc.dpy = dpy;
dc.norm[ColBG] = getcolor(&dc, normbgcolor);
dc.norm[ColFG] = getcolor(&dc, normfgcolor);
dc.sel[ColBG] = getcolor(&dc, selbgcolor);
dc.sel[ColFG] = getcolor(&dc, selfgcolor);
initfont(&dc, font);
/* menu window */ /* menu window */
wa.override_redirect = True; wa.override_redirect = True;
@ -531,11 +534,11 @@ setup(Bool topbar) {
DefaultVisual(dpy, screen), DefaultVisual(dpy, screen),
CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa); CWOverrideRedirect | CWBackPixmap | CWEventMask, &wa);
drawsetup(); setupdraw(&dc, win);
if(maxname) if(maxname)
cmdw = MIN(textw(maxname), mw / 3); cmdw = MIN(textw(&dc, maxname), mw / 3);
if(prompt) if(prompt)
promptw = MIN(textw(prompt), mw / 5); promptw = MIN(textw(&dc, prompt), mw / 5);
text[0] = '\0'; text[0] = '\0';
match(text); match(text);
XMapRaised(dpy, win); XMapRaised(dpy, win);

107
draw.c
View File

@ -14,126 +14,123 @@
#define MAX(a, b) ((a) > (b) ? (a) : (b)) #define MAX(a, b) ((a) > (b) ? (a) : (b))
/* variables */ /* variables */
char *progname; const char *progname;
void void
drawcleanup(void) { cleanupdraw(DC *dc) {
if(dc.font.set) if(dc->font.set)
XFreeFontSet(dpy, dc.font.set); XFreeFontSet(dc->dpy, dc->font.set);
else else
XFreeFont(dpy, dc.font.xfont); XFreeFont(dc->dpy, dc->font.xfont);
XFreePixmap(dpy, dc.drawable); XFreePixmap(dc->dpy, dc->drawable);
XFreeGC(dpy, dc.gc); XFreeGC(dc->dpy, dc->gc);
} }
void void
drawsetup(void) { setupdraw(DC *dc, Window w) {
/* style */ XWindowAttributes wa;
dc.norm[ColBG] = getcolor(normbgcolor);
dc.norm[ColFG] = getcolor(normfgcolor);
dc.sel[ColBG] = getcolor(selbgcolor);
dc.sel[ColFG] = getcolor(selfgcolor);
/* pixmap */ XGetWindowAttributes(dc->dpy, w, &wa);
dc.drawable = XCreatePixmap(dpy, parent, mw, mh, DefaultDepth(dpy, screen)); dc->drawable = XCreatePixmap(dc->dpy, w, wa.width, wa.height,
dc.gc = XCreateGC(dpy, parent, 0, NULL); DefaultDepth(dc->dpy, DefaultScreen(dc->dpy)));
XSetLineAttributes(dpy, dc.gc, 1, LineSolid, CapButt, JoinMiter); dc->gc = XCreateGC(dc->dpy, w, 0, NULL);
if(!dc.font.set) XSetLineAttributes(dc->dpy, dc->gc, 1, LineSolid, CapButt, JoinMiter);
XSetFont(dpy, dc.gc, dc.font.xfont->fid); if(!dc->font.set)
XSetFont(dc->dpy, dc->gc, dc->font.xfont->fid);
} }
void void
drawtext(const char *text, unsigned long col[ColLast]) { drawtext(DC *dc, const char *text, unsigned long col[ColLast]) {
char buf[256]; char buf[256];
int i, x, y, h, len, olen; int i, x, y, h, len, olen;
XRectangle r = { dc.x, dc.y, dc.w, dc.h }; XRectangle r = { dc->x, dc->y, dc->w, dc->h };
XSetForeground(dpy, dc.gc, col[ColBG]); XSetForeground(dc->dpy, dc->gc, col[ColBG]);
XFillRectangles(dpy, dc.drawable, dc.gc, &r, 1); XFillRectangles(dc->dpy, dc->drawable, dc->gc, &r, 1);
if(!text) if(!text)
return; return;
olen = strlen(text); olen = strlen(text);
h = dc.font.height; h = dc->font.height;
y = dc.y + ((h+2) / 2) - (h / 2) + dc.font.ascent; y = dc->y + ((h+2) / 2) - (h / 2) + dc->font.ascent;
x = dc.x + (h / 2); x = dc->x + (h / 2);
/* shorten text if necessary */ /* shorten text if necessary */
for(len = MIN(olen, sizeof buf); len && textnw(text, len) > dc.w - h; len--); for(len = MIN(olen, sizeof buf); len && textnw(dc, text, len) > dc->w - h; len--);
if(!len) if(!len)
return; return;
memcpy(buf, text, len); memcpy(buf, text, len);
if(len < olen) if(len < olen)
for(i = len; i && i > len - 3; buf[--i] = '.'); for(i = len; i && i > len - 3; buf[--i] = '.');
XSetForeground(dpy, dc.gc, col[ColFG]); XSetForeground(dc->dpy, dc->gc, col[ColFG]);
if(dc.font.set) if(dc->font.set)
XmbDrawString(dpy, dc.drawable, dc.font.set, dc.gc, x, y, buf, len); XmbDrawString(dc->dpy, dc->drawable, dc->font.set, dc->gc, x, y, buf, len);
else else
XDrawString(dpy, dc.drawable, dc.gc, x, y, buf, len); XDrawString(dc->dpy, dc->drawable, dc->gc, x, y, buf, len);
} }
void void
eprint(const char *errstr, ...) { eprint(const char *fmt, ...) {
va_list ap; va_list ap;
fprintf(stderr, "%s: ", progname); fprintf(stderr, "%s: ", progname);
va_start(ap, errstr); va_start(ap, fmt);
vfprintf(stderr, errstr, ap); vfprintf(stderr, fmt, ap);
va_end(ap); va_end(ap);
exit(EXIT_FAILURE); exit(EXIT_FAILURE);
} }
unsigned long unsigned long
getcolor(const char *colstr) { getcolor(DC *dc, const char *colstr) {
Colormap cmap = DefaultColormap(dpy, screen); Colormap cmap = DefaultColormap(dc->dpy, DefaultScreen(dc->dpy));
XColor color; XColor color;
if(!XAllocNamedColor(dpy, cmap, colstr, &color, &color)) if(!XAllocNamedColor(dc->dpy, cmap, colstr, &color, &color))
eprint("cannot allocate color '%s'\n", colstr); eprint("cannot allocate color '%s'\n", colstr);
return color.pixel; return color.pixel;
} }
void void
initfont(const char *fontstr) { initfont(DC *dc, const char *fontstr) {
char *def, **missing = NULL; char *def, **missing = NULL;
int i, n; int i, n;
if(!fontstr || !*fontstr) if(!fontstr || !*fontstr)
eprint("cannot load null font\n"); eprint("cannot load null font\n");
dc.font.set = XCreateFontSet(dpy, fontstr, &missing, &n, &def); dc->font.set = XCreateFontSet(dc->dpy, fontstr, &missing, &n, &def);
if(missing) if(missing)
XFreeStringList(missing); XFreeStringList(missing);
if(dc.font.set) { if(dc->font.set) {
XFontStruct **xfonts; XFontStruct **xfonts;
char **font_names; char **font_names;
dc.font.ascent = dc.font.descent = 0; dc->font.ascent = dc->font.descent = 0;
n = XFontsOfFontSet(dc.font.set, &xfonts, &font_names); n = XFontsOfFontSet(dc->font.set, &xfonts, &font_names);
for(i = 0; i < n; i++) { for(i = 0; i < n; i++) {
dc.font.ascent = MAX(dc.font.ascent, (*xfonts)->ascent); dc->font.ascent = MAX(dc->font.ascent, (*xfonts)->ascent);
dc.font.descent = MAX(dc.font.descent, (*xfonts)->descent); dc->font.descent = MAX(dc->font.descent, (*xfonts)->descent);
xfonts++; xfonts++;
} }
} }
else { else {
if(!(dc.font.xfont = XLoadQueryFont(dpy, fontstr)) if(!(dc->font.xfont = XLoadQueryFont(dc->dpy, fontstr))
&& !(dc.font.xfont = XLoadQueryFont(dpy, "fixed"))) && !(dc->font.xfont = XLoadQueryFont(dc->dpy, "fixed")))
eprint("cannot load font '%s'\n", fontstr); eprint("cannot load font '%s'\n", fontstr);
dc.font.ascent = dc.font.xfont->ascent; dc->font.ascent = dc->font.xfont->ascent;
dc.font.descent = dc.font.xfont->descent; dc->font.descent = dc->font.xfont->descent;
} }
dc.font.height = dc.font.ascent + dc.font.descent; dc->font.height = dc->font.ascent + dc->font.descent;
} }
int int
textnw(const char *text, unsigned int len) { textnw(DC *dc, const char *text, unsigned int len) {
XRectangle r; XRectangle r;
if(dc.font.set) { if(dc->font.set) {
XmbTextExtents(dc.font.set, text, len, NULL, &r); XmbTextExtents(dc->font.set, text, len, NULL, &r);
return r.width; return r.width;
} }
return XTextWidth(dc.font.xfont, text, len); return XTextWidth(dc->font.xfont, text, len);
} }
int int
textw(const char *text) { textw(DC *dc, const char *text) {
return textnw(text, strlen(text)) + dc.font.height; return textnw(dc, text, strlen(text)) + dc->font.height;
} }

30
draw.h
View File

@ -9,6 +9,7 @@ typedef struct {
unsigned long norm[ColLast]; unsigned long norm[ColLast];
unsigned long sel[ColLast]; unsigned long sel[ColLast];
Drawable drawable; Drawable drawable;
Display *dpy;
GC gc; GC gc;
struct { struct {
XFontStruct *xfont; XFontStruct *xfont;
@ -20,25 +21,14 @@ typedef struct {
} DC; /* draw context */ } DC; /* draw context */
/* forward declarations */ /* forward declarations */
void drawcleanup(void); void cleanupdraw(DC *dc);
void drawsetup(void); void setupdraw(DC *dc, Window w);
void drawtext(const char *text, unsigned long col[ColLast]); void drawtext(DC *dc, const char *text, unsigned long col[ColLast]);
void eprint(const char *errstr, ...); void eprint(const char *fmt, ...);
unsigned long getcolor(const char *colstr); unsigned long getcolor(DC *dc, const char *colstr);
void initfont(const char *fontstr); void initfont(DC *dc, const char *fontstr);
int textnw(const char *text, unsigned int len); int textnw(DC *dc, const char *text, unsigned int len);
int textw(const char *text); int textw(DC *dc, const char *text);
/* variables */ /* variables */
extern char *progname; extern const char *progname;
extern Display *dpy;
extern DC dc;
extern int screen;
extern unsigned int mw, mh;
extern Window parent;
extern const char *font;
extern const char *normbgcolor;
extern const char *normfgcolor;
extern const char *selbgcolor;
extern const char *selfgcolor;