Generalize window commands to nodes

[bspwm.git] / helpers.c

diff --git a/helpers.c b/helpers.c
index 36ff8ac2c05f411451422360961f35ef34a523a1..1b2ef330ef24b97be77de250677c8c2b27f04f9f 100644 (file)
--- a/helpers.c
+++ b/helpers.c
@@ -1,16 +1,15 @@
-/*
- * Copyright (c) 2012-2014, Bastien Dejean
+/* Copyright (c) 2012, Bastien Dejean
  * All rights reserved.
- * 
+ *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
- * 
+ *
  * 1. Redistributions of source code must retain the above copyright notice, this
  *    list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright notice,
  *    this list of conditions and the following disclaimer in the documentation
  *    and/or other materials provided with the distribution.
- * 
+ *
  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
@@ -21,14 +20,17 @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- * 
- * The views and conclusions contained in the software and documentation are those
- * of the authors and should not be interpreted as representing official policies,
- * either expressed or implied, of the FreeBSD Project.
  */
 
+#include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
+#include <stdarg.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <fcntl.h>
+#include <ctype.h>
 #include <math.h>
 #include "bspwm.h"
 
@@ -50,47 +52,86 @@ void err(char *fmt, ...)
        exit(EXIT_FAILURE);
 }
 
-bool get_color(char *col, xcb_window_t win, uint32_t *pxl)
+char *read_string(const char *file_path, size_t *tlen)
 {
-       xcb_colormap_t map = screen->default_colormap;
-       xcb_get_window_attributes_reply_t *reply = xcb_get_window_attributes_reply(dpy, xcb_get_window_attributes(dpy, win), NULL);
-       if (reply != NULL)
-               map = reply->colormap;
-       free(reply);
+       if (file_path == NULL) {
+               return NULL;
+       }
+
+       int fd = open(file_path, O_RDONLY);
+
+       if (fd == -1) {
+               perror("Read file: open");
+               return NULL;
+       }
+
+       char buf[BUFSIZ], *content;
+       size_t len = sizeof(buf);
 
-       if (col[0] == '#') {
-               unsigned int red, green, blue;
-               if (sscanf(col + 1, "%02x%02x%02x", &red, &green, &blue) == 3) {
-                       /* 2**16 - 1 == 0xffff and 0x101 * 0xij == 0xijij */
-                       red *= 0x101;
-                       green *= 0x101;
-                       blue *= 0x101;
-                       xcb_alloc_color_reply_t *reply = xcb_alloc_color_reply(dpy, xcb_alloc_color(dpy, map, red, green, blue), NULL);
-                       if (reply != NULL) {
-                               *pxl = reply->pixel;
-                               free(reply);
-                               return true;
+       if ((content = malloc(len * sizeof(char))) == NULL) {
+               perror("Read file: malloc");
+               return NULL;
+       }
+
+       int nb;
+       *tlen = 0;
+
+       while (true) {
+               nb = read(fd, buf, sizeof(buf));
+               if (nb < 0) {
+                       perror("Restore tree: read");
+                       free(content);
+                       return NULL;
+               } else if (nb == 0) {
+                       break;
+               } else {
+                       *tlen += nb;
+                       if (*tlen > len) {
+                               len *= 2;
+                               char *rcontent = realloc(content, len * sizeof(char));
+                               if (rcontent == NULL) {
+                                       perror("Read file: realloc");
+                                       free(content);
+                                       return NULL;
+                               } else {
+                                       content = rcontent;
+                               }
                        }
+                       strncpy(content + (*tlen - nb), buf, nb);
                }
+       }
+
+       return content;
+}
+
+
+/* Adapted from i3wm */
+uint32_t get_color_pixel(const char *color)
+{
+       unsigned int red, green, blue;
+       if (sscanf(color + 1, "%02x%02x%02x", &red, &green, &blue) == 3) {
+               /* We set the first 8 bits high to have 100% opacity in case of a 32 bit
+                * color depth visual. */
+               return (0xFF << 24) | (red << 16 | green << 8 | blue);
        } else {
-               xcb_alloc_named_color_reply_t *reply = xcb_alloc_named_color_reply(dpy, xcb_alloc_named_color(dpy, map, strlen(col), col), NULL);
-               if (reply != NULL) {
-                       *pxl = reply->pixel;
-                       free(reply);
-                       return true;
-               }
+               return screen->black_pixel;
        }
-       *pxl = 0;
-       return false;
 }
 
-double distance(xcb_point_t a, xcb_point_t b)
+bool is_hex_color(const char *color)
 {
-       return hypot(a.x - b.x, a.y - b.y);
+       if (color[0] != '#' || strlen(color) != 7) {
+               return false;
+       }
+       for (int i = 1; i < 7; i++) {
+               if (!isxdigit(color[i])) {
+                       return false;
+               }
+       }
+       return true;
 }
 
-void center_rectangle(xcb_rectangle_t *src, xcb_rectangle_t dst)
+double distance(xcb_point_t a, xcb_point_t b)
 {
-       src->x = dst.x + (dst.width - src->width) / 2;
-       src->y = dst.y + (dst.height - src->height) / 2;
+       return hypot(a.x - b.x, a.y - b.y);
 }