/* See LICENSE file for copyright and license details. */
+#include <stdio.h>
#include <stdlib.h>
+#include <string.h>
#include <X11/Xlib.h>
#include "draw.h"
+#include "util.h"
Draw *
-draw_create(Display *dpy, Window win, unsigned int w, unsigned int h) {
+draw_create(Display *dpy, int screen, Window win, unsigned int w, unsigned int h) {
Draw *draw = (Draw *)calloc(1, sizeof(Draw));
+ draw->dpy = dpy;
+ draw->screen = screen;
+ draw->win = win;
draw->w = w;
draw->h = h;
- /* TODO: drawable creation */
- /* TODO: gc allocation */
+ draw->drawable = XCreatePixmap(dpy, win, w, h, DefaultDepth(dpy, screen));
+ draw->gc = XCreateGC(dpy, win, 0, NULL);
+ XSetLineAttributes(dpy, draw->gc, 1, LineSolid, CapButt, JoinMiter);
return draw;
}
return;
draw->w = w;
draw->h = h;
- /* TODO: resize drawable */
+ XFreePixmap(draw->dpy, draw->drawable);
+ draw->drawable = XCreatePixmap(draw->dpy, draw->win, w, h, DefaultDepth(draw->dpy, draw->screen));
}
void
draw_free(Draw *draw) {
- /* TODO: deallocate DDCs */
- /* TODO: deallocate drawable */
+ XFreePixmap(draw->dpy, draw->drawable);
+ XFreeGC(draw->dpy, draw->gc);
free(draw);
}
-DDC *
-dc_create(Draw *draw) {
- DDC *dc = (DDC *)calloc(1, sizeof(DDC));
- dc->draw = draw;
- dc->next = draw->dc;
- draw->dc = dc;
- return dc;
-}
-
-void
-dc_free(DDC *dc) {
- DDC **tdc;
-
- if(!dc)
- return;
- /* remove from dc list */
- for(tdc = &dc->draw->dc; *tdc && *tdc != dc; tdc = &(*tdc)->next);
- *tdc = dc->next;
- /* TODO: deallocate any resources of this dc, if needed */
- free(dc);
-}
-
Fnt *
-font_create(const char *fontname) {
- Fnt *font = (Fnt *)calloc(1, sizeof(Fnt));
- /* TODO: allocate actual font */
+draw_font_create(Draw *draw, const char *fontname) {
+ Fnt *font;
+ char *def, **missing;
+ int n;
+
+ if(!draw)
+ return NULL;
+ font = (Fnt *)calloc(1, sizeof(Fnt));
+ font->set = XCreateFontSet(draw->dpy, fontname, &missing, &n, &def);
+ if(missing) {
+ while(n--)
+ fprintf(stderr, "draw: 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(draw->dpy, fontname))
+ && !(font->xfont = XLoadQueryFont(draw->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;
return font;
}
void
-font_free(Fnt *font) {
- if(!font)
+draw_font_free(Draw *draw, Fnt *font) {
+ if(!draw || !font)
return;
- /* TODO: deallocate any font resources */
+ if(font->set)
+ XFreeFontSet(draw->dpy, font->set);
+ else
+ XFreeFont(draw->dpy, font->xfont);
free(font);
}
Col *
-col_create(const char *colname) {
+draw_col_create(Draw *draw, const char *colname) {
Col *col = (Col *)calloc(1, sizeof(Col));
- /* TODO: allocate color */
+ Colormap cmap = DefaultColormap(draw->dpy, draw->screen);
+ XColor color;
+
+ if(!XAllocNamedColor(draw->dpy, cmap, colname, &color, &color))
+ die("error, cannot allocate color '%s'\n", colname);
+ col->rgb = color.pixel;
return col;
}
void
-col_free(Col *col) {
+draw_col_free(Draw *draw, Col *col) {
if(!col)
return;
- /* TODO: deallocate any color resource */
free(col);
}
void
-dc_setfont(DDC *dc, Fnt *font) {
- if(!dc || !font)
+draw_setfont(Draw *draw, Fnt *font) {
+ if(!draw)
return;
- dc->font = font;
+ draw->font = font;
}
void
-dc_setfg(DDC *dc, Col *col) {
- if(!dc || !col)
+draw_setfg(Draw *draw, Col *col) {
+ if(!draw)
return;
- dc->fg = col;
+ draw->fg = col;
}
void
-dc_setbg(DDC *dc, Col *col) {
- if(!dc || !col)
+draw_setbg(Draw *draw, Col *col) {
+ if(!draw)
return;
- dc->bg = col;
+ draw->bg = col;
}
void
-dc_setfill(DDC *dc, Bool fill) {
- if(!dc)
- return;
- dc->fill = fill;
-}
+draw_rect(Draw *draw, int x, int y, unsigned int w, unsigned int h, Bool filled, Bool empty, Bool invert) {
+ int dx;
-void
-dc_drawrect(DDC *dc, int x, int y, unsigned int w, unsigned int h) {
- if(!dc)
+ if(!draw || !draw->font || !draw->fg || !draw->bg)
return;
- /* TODO: draw the rectangle */
+ XSetForeground(draw->dpy, draw->gc, invert ? draw->bg->rgb : draw->fg->rgb);
+ dx = (draw->font->ascent + draw->font->descent + 2) / 4;
+ if(filled)
+ XFillRectangle(draw->dpy, draw->drawable, draw->gc, x+1, y+1, dx+1, dx+1);
+ else if(empty)
+ XDrawRectangle(draw->dpy, draw->drawable, draw->gc, x+1, y+1, dx, dx);
}
void
-dc_drawtext(DDC *dc, int x, int y, const char *text) {
- if(!dc)
+draw_text(Draw *draw, int x, int y, unsigned int w, unsigned int h, const char *text, Bool invert) {
+ char buf[256];
+ int i, tx, ty, len, olen;
+ TextExtents tex;
+
+ if(!draw || !draw->fg || !draw->bg)
return;
- /* TODO: draw the text */
+ XSetForeground(draw->dpy, draw->gc, invert ? draw->fg->rgb : draw->bg->rgb);
+ XFillRectangle(draw->dpy, draw->drawable, draw->gc, x, y, w, h);
+ if(!text || !draw->font)
+ return;
+ olen = strlen(text);
+ draw_getextents(draw, text, olen, &tex);
+ ty = y + (h / 2) - tex.yOff;
+ tx = x + tex.xOff;
+ /* shorten text if necessary */
+ for(len = MIN(olen, sizeof buf); len && tex.w > w - tex.h; len--)
+ draw_getextents(draw, text, len, &tex);
+ if(!len)
+ return;
+ memcpy(buf, text, len);
+ if(len < olen)
+ for(i = len; i && i > len - 3; buf[--i] = '.');
+ XSetForeground(draw->dpy, draw->gc, invert ? draw->bg->rgb : draw->fg->rgb);
+ if(draw->font->set)
+ XmbDrawString(draw->dpy, draw->drawable, draw->font->set, draw->gc, tx, ty, buf, len);
+ else
+ XDrawString(draw->dpy, draw->drawable, draw->gc, tx, ty, buf, len);
}
void
-dc_map(DDC *dc, int x, int y, unsigned int w, unsigned int h) {
- if(!dc)
+draw_map(Draw *draw, int x, int y, unsigned int w, unsigned int h) {
+ if(!draw)
return;
- /* TODO: map the dc contents in the region */
+ XCopyArea(draw->dpy, draw->drawable, draw->win, draw->gc, x, y, w, h, x, y);
+ XSync(draw->dpy, False);
}
+
void
-dc_getextents(DDC *dc, const char *text, TextExtents *extents) {
- if(!dc || !extents)
+draw_getextents(Draw *draw, const char *text, unsigned int len, TextExtents *extents) {
+ XRectangle r;
+
+ if(!draw || !draw->font || !text)
return;
- /* TODO: get extents */
+ if(draw->font->set) {
+ XmbTextExtents(draw->font->set, text, len, NULL, &r);
+ extents->xOff = r.x;
+ extents->yOff = r.y;
+ extents->w = r.width;
+ extents->h = r.height;
+ }
+ else {
+ extents->h = draw->font->ascent + draw->font->descent;
+ extents->w = XTextWidth(draw->font->xfont, text, len);
+ extents->xOff = extents->h / 2;
+ extents->yOff = (extents->h / 2) + draw->font->ascent;
+ }
}
Got questions, comments, patches, etc.? Contact Jason Woofenden