105 lines
3.3 KiB
C
105 lines
3.3 KiB
C
/*
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* draw.c - draw functions
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*
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* Copyright © 2007 Julien Danjou <julien@danjou.info>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*
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*/
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#include <cairo.h>
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#include <cairo-xlib.h>
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#include <math.h>
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#include "layout.h"
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#include "util.h"
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#include "draw.h"
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void
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drawtext(Display *disp, int screen, int x, int y, int w, int h, Drawable drawable, int dw, int dh, XftFont *font, const char *text, XColor color[ColLast])
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{
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int nw = 0;
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static char buf[256];
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size_t len, olen;
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XRenderColor xrcolor;
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XftColor xftcolor;
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XftDraw *xftdrawable;
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drawrectangle(disp, screen, x, y, w, h, drawable, dw, dh, True, color[ColBG]);
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if(!text)
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return;
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olen = len = a_strlen(text);
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if(len >= sizeof(buf))
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len = sizeof(buf) - 1;
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memcpy(buf, text, len);
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buf[len] = 0;
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while(len && (nw = textwidth(disp, font, buf, len)) > w - font->height)
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buf[--len] = 0;
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if(nw > w)
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return; /* too long */
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if(len < olen)
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{
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if(len > 1)
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buf[len - 1] = '.';
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if(len > 2)
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buf[len - 2] = '.';
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if(len > 3)
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buf[len - 3] = '.';
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}
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xrcolor.red = color[ColFG].red;
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xrcolor.green = color[ColFG].green;
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xrcolor.blue = color[ColFG].blue;
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XftColorAllocValue(disp, DefaultVisual(disp, screen), DefaultColormap(disp, screen), &xrcolor, &xftcolor);
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xftdrawable = XftDrawCreate(disp, drawable, DefaultVisual(disp, screen), DefaultColormap(disp, screen));
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XftDrawStringUtf8(xftdrawable, &xftcolor, font,
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x + (font->height / 2),
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y + (h / 2) - (font->height / 2) + font->ascent,
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(FcChar8 *) buf, len);
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XftColorFree(disp, DefaultVisual(disp, screen), DefaultColormap(disp, screen), &xftcolor);
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}
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void
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drawrectangle(Display *disp, int screen, int x, int y, int w, int h, Drawable drawable, int dw, int dh, Bool filled, XColor color)
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{
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cairo_surface_t *surface;
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cairo_t *cr;
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surface = cairo_xlib_surface_create(disp, drawable, DefaultVisual(disp, screen), dw, dh);
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cr = cairo_create (surface);
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cairo_set_antialias(cr, CAIRO_ANTIALIAS_NONE);
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cairo_set_line_width(cr, 1.0);
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cairo_set_source_rgb(cr, color.red / 65535.0, color.green / 65535.0, color.blue / 65535.0);
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if(filled)
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{
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cairo_rectangle(cr, x, y, w + 1, h + 1);
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cairo_fill(cr);
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}
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else
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cairo_rectangle(cr, x + 1, y, w, h);
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cairo_stroke(cr);
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cairo_destroy(cr);
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cairo_surface_destroy(surface);
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}
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unsigned short
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textwidth(Display *disp, XftFont *font, char *text, ssize_t len)
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{
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XGlyphInfo gi;
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XftTextExtentsUtf8(disp, font, (FcChar8 *) text, len, &gi);
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return gi.width;
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}
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