diff options
Diffstat (limited to 'drw.c')
| -rw-r--r-- | drw.c | 313 |
1 files changed, 313 insertions, 0 deletions
@@ -0,0 +1,313 @@ +/* See LICENSE file for copyright and license details. */ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <X11/Xlib.h> + +#include "drw.h" +#include "util.h" + +#ifdef CONFIG_DWM_PANGO +//char stext[512]; +//extern Bool statusmarkup; +#endif + +Drw * +drw_create(Display *dpy, int screen, Window root, unsigned int w, unsigned int h) { + Drw *drw = (Drw *)calloc(1, sizeof(Drw)); + if(!drw) + return NULL; + drw->dpy = dpy; + drw->screen = screen; + drw->root = root; + drw->w = w; + drw->h = h; + drw->drawable = XCreatePixmap(dpy, root, w, h, DefaultDepth(dpy, screen)); + drw->gc = XCreateGC(dpy, root, 0, NULL); + XSetLineAttributes(dpy, drw->gc, 1, LineSolid, CapButt, JoinMiter); + return drw; +} + +void +drw_resize(Drw *drw, unsigned int w, unsigned int h) { + if(!drw) + return; + drw->w = w; + drw->h = h; + if(drw->drawable != 0) + XFreePixmap(drw->dpy, drw->drawable); + drw->drawable = XCreatePixmap(drw->dpy, drw->root, w, h, DefaultDepth(drw->dpy, drw->screen)); +} + +void +drw_free(Drw *drw) { + XFreePixmap(drw->dpy, drw->drawable); + XFreeGC(drw->dpy, drw->gc); + free(drw); +} + +Fnt * +drw_font_create(Display *dpy, const char *fontname) { + Fnt *font; + char *def, **missing; + int n; + + font = (Fnt *)calloc(1, sizeof(Fnt)); + if(!font) + return NULL; + +#ifdef CONFIG_DWM_PANGO + PangoFontMap *fontmap; + PangoContext *context; + PangoFontDescription *desc; + PangoFontMetrics *metrics; + + int screen = DefaultScreen(dpy); + fontmap = pango_xft_get_font_map(dpy, screen); + context = pango_font_map_create_context(fontmap); + desc = pango_font_description_from_string(fontname); + font->layout = pango_layout_new(context); + pango_layout_set_font_description(font->layout, desc); + + metrics = pango_context_get_metrics(context, desc, NULL); + font->ascent = pango_font_metrics_get_ascent(metrics) / PANGO_SCALE; + font->descent = pango_font_metrics_get_descent(metrics) / PANGO_SCALE; + font->h = font->ascent + font->descent; + + pango_font_metrics_unref(metrics); + g_object_unref(context); +#else + font->set = XCreateFontSet(dpy, fontname, &missing, &n, &def); + if(missing) { + while(n--) + fprintf(stderr, "drw: missing fontset: %s\n", missing[n]); + XFreeStringList(missing); + } + if(font->set) { + XFontStruct **xfonts; + char **font_names; + XExtentsOfFontSet(font->set); + n = XFontsOfFontSet(font->set, &xfonts, &font_names); + while(n--) { + font->ascent = MAX(font->ascent, (*xfonts)->ascent); + font->descent = MAX(font->descent,(*xfonts)->descent); + xfonts++; + } + } + else { + if(!(font->xfont = XLoadQueryFont(dpy, fontname)) + && !(font->xfont = XLoadQueryFont(dpy, "fixed"))) + die("error, cannot load font: '%s'\n", fontname); + font->ascent = font->xfont->ascent; + font->descent = font->xfont->descent; + } + font->h = font->ascent + font->descent; +#endif + return font; +} + +void +drw_font_free(Display *dpy, Fnt *font) { + if(!font) + return; +#ifdef CONFIG_DWM_PANGO + g_object_unref(font->layout); +#else + if(font->set) + XFreeFontSet(dpy, font->set); + else + XFreeFont(dpy, font->xfont); +#endif + free(font); +} + +Clr * +#ifdef CONFIG_DWM_PANGO +drw_clr_create(Drw *drw, const char *clrname, XftColor *color) { +#else +drw_clr_create(Drw *drw, const char *clrname) { +#endif + Clr *clr; + Colormap cmap; +#ifdef CONFIG_DWM_PANGO + Visual *vis = DefaultVisual(drw->dpy, drw->screen); +#else + XColor color; +#endif + + if(!drw) + return NULL; + clr = (Clr *)calloc(1, sizeof(Clr)); + if(!clr) + return NULL; + cmap = DefaultColormap(drw->dpy, drw->screen); + +#ifdef CONFIG_DWM_PANGO + if(!XftColorAllocName(drw->dpy, vis, cmap, clrname, color)) +#else + if(!XAllocNamedColor(drw->dpy, cmap, clrname, &color, &color)) +#endif + + die("error, cannot allocate color '%s'\n", clrname); + +#ifdef CONFIG_DWM_PANGO + clr->rgb = color->pixel; +#else + clr->rgb = color.pixel; +#endif + + return clr; +} + +void +drw_clr_free(Clr *clr) { + if(clr) + free(clr); +} + +void +drw_setfont(Drw *drw, Fnt *font) { + if(drw) + drw->font = font; +} + +void +drw_setscheme(Drw *drw, ClrScheme *scheme) { + if(drw && scheme) + drw->scheme = scheme; +} + +void +drw_rect(Drw *drw, int x, int y, unsigned int w, unsigned int h, int filled, int empty, int invert) { + int dx; + + if(!drw || !drw->font || !drw->scheme) + return; + XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme->bg->rgb : drw->scheme->fg->rgb); + dx = (drw->font->ascent + drw->font->descent + 2) / 4; + if(filled) + XFillRectangle(drw->dpy, drw->drawable, drw->gc, x+1, y+1, dx+1, dx+1); + else if(empty) + XDrawRectangle(drw->dpy, drw->drawable, drw->gc, x+1, y+1, dx, dx); +} + +void +drw_text(Drw *drw, int x, int y, unsigned int w, unsigned int h, const char *text, int invert) { +#ifdef CONFIG_DWM_PANGO + char buf[512]; +#else + char buf[256]; +#endif + int i, tx, ty, th, len, olen; + Extnts tex; + + if(!drw || !drw->scheme) + return; + XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme->fg->rgb : drw->scheme->bg->rgb); + XFillRectangle(drw->dpy, drw->drawable, drw->gc, x, y, w, h); + if(!text || !drw->font) + return; + olen = strlen(text); + drw_font_getexts(drw->font, text, olen, &tex); + th = drw->font->ascent + drw->font->descent; +#ifdef CONFIG_DWM_PANGO + ty = y + (h / 2) - (th / 2); +#else + ty = y + (h / 2) - (th / 2) + drw->font->ascent; +#endif + tx = x + (h / 2); + /* shorten text if necessary */ + /* shorten text if necessary (this could wreak havoc with pango markup but fortunately + dc.w is adjusted to the width of the status text and not the other way around) */ + for(len = MIN(olen, sizeof buf); len && (tex.w > w - tex.h || w < tex.h); len--) + drw_font_getexts(drw->font, text, len, &tex); + if(!len) + return; + memcpy(buf, text, len); + if(len < olen) + for(i = len; i && i > len - 3; buf[--i] = '.'); +#ifdef CONFIG_DWM_PANGO + //if(text == stext && statusmarkup) + // pango_layout_set_markup(drw->font->layout, buf, len); + //else + pango_layout_set_text(drw->font->layout, buf, len); + //pango_xft_render_layout(drw->xft.drawable, + // (struct XftColor*)(invert ? drw->scheme->bg->rgb : drw->scheme->fg->rgb), + // drw->font->layout, x * PANGO_SCALE, y * PANGO_SCALE); + //if(text == stext && statusmarkup) /* clear markup attributes */ + // pango_layout_set_attributes(drw->font->layout, NULL); +#else + XSetForeground(drw->dpy, drw->gc, invert ? drw->scheme->bg->rgb : drw->scheme->fg->rgb); + if(drw->font->set) + XmbDrawString(drw->dpy, drw->drawable, drw->font->set, drw->gc, tx, ty, buf, len); + else + XDrawString(drw->dpy, drw->drawable, drw->gc, tx, ty, buf, len); +#endif +} + +void +drw_map(Drw *drw, Window win, int x, int y, unsigned int w, unsigned int h) { + if(!drw) + return; + XCopyArea(drw->dpy, drw->drawable, win, drw->gc, x, y, w, h, x, y); + XSync(drw->dpy, False); +} + + +void +drw_font_getexts(Fnt *font, const char *text, unsigned int len, Extnts *tex) { + if(!font || !text) + return; + +#ifdef CONFIG_DWM_PANGO + PangoRectangle r; + //if(text == stext && statusmarkup) + // pango_layout_set_markup(font->layout, text, len); + //else + pango_layout_set_text(font->layout, text, len); + pango_layout_get_extents(font->layout, 0, &r); + //if(text == stext && statusmarkup) /* clear markup attributes */ + // pango_layout_set_attributes(font->layout, NULL); + tex->h = r.height; + tex->w = r.width / PANGO_SCALE; +#else + XRectangle r; + if(font->set) { + XmbTextExtents(font->set, text, len, NULL, &r); + tex->w = r.width; + tex->h = r.height; + } + else { + tex->h = font->ascent + font->descent; + tex->w = XTextWidth(font->xfont, text, len); + } +#endif +} + +unsigned int +drw_font_getexts_width(Fnt *font, const char *text, unsigned int len) { + Extnts tex; + + if(!font) + return -1; + drw_font_getexts(font, text, len, &tex); + return tex.w; +} + +Cur * +drw_cur_create(Drw *drw, int shape) { + Cur *cur = (Cur *)calloc(1, sizeof(Cur)); + + if(!drw || !cur) + return NULL; + cur->cursor = XCreateFontCursor(drw->dpy, shape); + return cur; +} + +void +drw_cur_free(Drw *drw, Cur *cursor) { + if(!drw || !cursor) + return; + XFreeCursor(drw->dpy, cursor->cursor); + free(cursor); +} |