new widget: add support for netwmicon

config.c

@@ -354,6 +354,7 @@ config_parse(const char *confpatharg)
         CFG_SEC((char *) "focustitle", widget_opts, CFGF_TITLE | CFGF_MULTI),
         CFG_SEC((char *) "layoutinfo", widget_opts, CFGF_TITLE | CFGF_MULTI),
         CFG_SEC((char *) "iconbox", widget_iconbox_opts, CFGF_TITLE | CFGF_MULTI),
+        CFG_SEC((char *) "netwmicon", widget_opts, CFGF_TITLE | CFGF_MULTI),
         CFG_END()
     };
     static cfg_opt_t tag_opts[] =

config.mk

@@ -6,8 +6,8 @@ RELEASE = "Productivity Breaker"
 
 # additional layouts
 LAYOUTS = layouts/tile.c layouts/floating.c layouts/max.c layouts/fibonacci.c
-
-WIDGETS = widgets/taglist.c widgets/layoutinfo.c widgets/textbox.c widgets/focustitle.c widgets/iconbox.c
+# additional widgets
+WIDGETS = widgets/taglist.c widgets/layoutinfo.c widgets/textbox.c widgets/focustitle.c widgets/iconbox.c widgets/netwmicon.c
 
 # paths
 PREFIX = /usr/local
@@ -21,7 +21,7 @@ INCS = -I. -I/usr/include -I${X11INC} `pkg-config --cflags libconfuse xft cairo`
 LIBS = -L/usr/lib -lc -L${X11LIB} -lX11 `pkg-config --libs libconfuse xft cairo` -lXext -lXrandr -lXinerama
 
 # flags
-CFLAGS = -std=gnu99 -ggdb3 -pipe -Wall -Wextra -Wundef -Wshadow -Wcast-align -Wwrite-strings -Wsign-compare -Wunused -Winit-self -Wpointer-arith -Wredundant-decls -Wmissing-prototypes -Wmissing-format-attribute -Wmissing-noreturn -O3 ${INCS} -DVERSION=\"${VERSION}\" -DRELEASE=\"${RELEASE}\"
+CFLAGS = -std=gnu99 -ggdb3 -pipe -Wall -Wextra -Wundef -Wshadow -Wcast-align -Wwrite-strings -Wsign-compare -Wunused -Winit-self -Wpointer-arith -Wredundant-decls -Wmissing-prototypes -Wmissing-format-attribute -Wmissing-noreturn -O0 ${INCS} -DVERSION=\"${VERSION}\" -DRELEASE=\"${RELEASE}\"
 LDFLAGS = -ggdb3 ${LIBS}
 CLIENTLDFLAGS = -ggdb3
 

draw.c

@@ -149,6 +149,22 @@ drawcircle(DrawCtx *ctx, int x, int y, int r, Bool filled, XColor color)
     cairo_surface_destroy(surface);
 }
 
+void draw_image_from_argb_data(DrawCtx *ctx, int x, int y, int w, int h, unsigned char *data)
+{
+    cairo_surface_t *surface, *source;
+    cairo_t *cr;
+
+    source = cairo_xlib_surface_create(ctx->display, ctx->drawable, ctx->visual, ctx->width, ctx->height);
+    surface = cairo_image_surface_create_for_data(data, CAIRO_FORMAT_ARGB32, w, h, 0);
+    cr = cairo_create (source);
+    cairo_set_source_surface(cr, surface, x, y);
+    cairo_paint(cr);
+
+    cairo_destroy(cr);
+    cairo_surface_destroy(source);
+    cairo_surface_destroy(surface);
+}
+
 void
 drawimage(DrawCtx *ctx, int x, int y, const char *filename)
 {

draw.h

@@ -42,6 +42,7 @@ void drawtext(DrawCtx *, int, int, int, int, XftFont *, const char *, XColor fg,
 void drawrectangle(DrawCtx *, int, int, int, int, Bool, XColor);
 void drawcircle(DrawCtx *, int, int, int, Bool, XColor);
 void drawimage(DrawCtx *, int, int, const char *);
+void draw_image_from_argb_data(DrawCtx *, int, int, int, int, unsigned char *);
 int draw_get_image_width(const char *filename);
 Drawable draw_rotate(DrawCtx *, int, double, int, int);
 unsigned short textwidth(DrawCtx *, XftFont *, char *);

widget.c

@@ -33,6 +33,7 @@ const NameFuncLink WidgetList[] =
     {"focustitle", focustitle_new},
     {"textbox", textbox_new},
     {"iconbox", iconbox_new},
+    {"netwmicon", netwmicon_new},
     {NULL, NULL}
 };
 

widget.h

@@ -41,6 +41,7 @@ WidgetConstructor taglist_new;
 WidgetConstructor textbox_new;
 WidgetConstructor focustitle_new;
 WidgetConstructor iconbox_new;
+WidgetConstructor netwmicon_new;
 
 UICB_PROTO(uicb_widget_tell);
 

widgets/netwmicon.c

@@ -0,0 +1,105 @@
+/*
+ * iconbox.c - icon widget
+ *
+ * Copyright © 2007 Julien Danjou <julien@danjou.info>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ */
+
+#include <X11/Xmd.h>
+#include <X11/Xatom.h>
+#include <confuse.h>
+#include "util.h"
+#include "focus.h"
+#include "layout.h"
+#include "widget.h"
+
+extern AwesomeConf globalconf;
+
+static int
+netwmicon_draw(Widget *widget, DrawCtx *ctx, int offset,
+                    int used __attribute__ ((unused)))
+{
+    unsigned long *data, pixel;
+    Atom type;
+    int format, location, width, height, size, i;
+    unsigned long items, rest;
+    unsigned char *image, *imgdata;
+    VirtScreen vscreen = globalconf.screens[widget->statusbar->screen];
+    Client *sel = focus_get_latest_client_for_tag(widget->statusbar->screen,
+                                                  get_current_tag(widget->statusbar->screen));
+
+    if(!sel)
+        return 0;
+
+    if(XGetWindowProperty(ctx->display, sel->win, 
+                          XInternAtom(ctx->display, "_NET_WM_ICON", False),
+                          0L, LONG_MAX, False, XA_CARDINAL, &type, &format,
+                          &items, &rest, (unsigned char**) &data) != Success
+       || !data)
+        return 0;
+
+    if(type != XA_CARDINAL || format != 32 || items < 2)
+    {
+        XFree(data);
+        return 0;
+    }
+
+    width = data[0];
+    height = data[1];
+    size = width * height;
+
+    if(!size)
+    {
+        XFree(data);
+        return 0;
+    }
+
+    image = p_new(unsigned char, size * 4);
+    for(imgdata = image, i = 2; i < size + 2; i++, imgdata += 4)
+    {
+        pixel = data[i];
+        imgdata[3] = (pixel >> 24) & 0xff; /* A */
+        imgdata[0] = (pixel >> 16) & 0xff; /* R */
+        imgdata[1] = (pixel >>  8) & 0xff; /* G */
+        imgdata[2] = pixel & 0xff;         /* B */
+    }
+
+    location = calculate_offset(vscreen.statusbar->width,
+                                width,
+                                offset,
+                                widget->alignment);
+
+    draw_image_from_argb_data(ctx, location, 0, width, height, image);
+
+    p_delete(&image);
+
+    XFree(data);
+    return width;
+}
+
+Widget *
+netwmicon_new(Statusbar *statusbar, cfg_t *config)
+{
+    Widget *w;
+
+    w = p_new(Widget, 1);
+    common_new(w, statusbar, config);
+    w->draw = netwmicon_draw;
+    
+    return w;
+}
+// vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80