</refsect1>
<refsect1>
<title>Lua API</title>
- <para>Conky features a Lua Programming API, and also ships with
- some Lua bindings for some useful libraries. Conky defines
- certain global functions and variables which can be accessed
- from Lua code running in Conky.
+ <para>Conky features a Lua Programming API, and also ships with Lua
+ bindings for some useful libraries. Conky defines certain global
+ functions and variables which can be accessed from Lua code running
+ in Conky.
</para>
<para>To use Lua Conky, you first need to make sure you have a version of Conky
with Lua support enabled (``conky -v'' will report this). Scripts
At this time, the Lua API should not be considered stable and may
change drastically from one release to another as it matures.
</para>
+ <para>
+ NOTE: In order to accommodate certain features in the cairo
+ library's API, Conky will export a few additional functions for the
+ creation of certain structures. These are documented below.
+ </para>
&lua;
</refsect1>
<refsect1>
configuration file.</para>
</listitem>
</varlistentry>
+ <varlistentry>
+ <term>
+ <command>
+ <option>cairo_text_extents_t:create()</option>
+ </command>
+ <option>function</option>
+ </term>
+ <listitem>
+ <para>
+ Call this function to return a new cairo_text_extents_t structure. A creation function for this structure is not provided by the cairo API. After calling this, you should use tolua.takeownership() on the return value to ensure ownership is passed properly.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>
+ <command>
+ <option>cairo_font_extents_t:create()</option>
+ </command>
+ <option>function</option>
+ </term>
+ <listitem>
+ <para>
+ Call this function to return a new cairo_font_extents_t structure. A creation function for this structure is not provided by the cairo API. After calling this, you should use tolua.takeownership() on the return value to ensure ownership is passed properly.
+ </para>
+ </listitem>
+ </varlistentry>
+ <varlistentry>
+ <term>
+ <command>
+ <option>cairo_matrix_t:create()</option>
+ </command>
+ <option>function</option>
+ </term>
+ <listitem>
+ <para>
+ Call this function to return a new cairo_matrix_t structure. A creation function for this structure is not provided by the cairo API. After calling this, you should use tolua.takeownership() on the return value to ensure ownership is passed properly.
+ </para>
+ </listitem>
+ </varlistentry>
</variablelist>
# along with this program. If not, see <http://www.gnu.org/licenses/>.
#
-libcairo_la_SOURCES = libcairo.c
-libimlib2_la_SOURCES = libimlib2.c
if BUILD_LUA
if BUILD_LUA_CAIRO
-libcairo = libcairo.la
+libcairo_built_sources = libcairo.c
-libcairo_la_CFLAGS = $(cairo_CFLAGS) $(cairo_xlib_CFLAGS) $(tolua_CFLAGS)
-libcairo_la_LIBADD = $(cairo_LIBS) $(cairo_xlib_LIBS) $(tolua_LIBS)
+libcairo = libcairo.la
libcairo.c: cairo.pkg
${toluapp} -n cairo -o $@ $(srcdir)/cairo.pkg
+libcairo_la_CFLAGS = $(cairo_CFLAGS) $(cairo_xlib_CFLAGS) $(tolua_CFLAGS)
+libcairo_la_LIBADD = $(cairo_LIBS) $(cairo_xlib_LIBS) $(tolua_LIBS)
+libcairo_la_SOURCES = cairo.pkg libcairo-helper.h libcairo.c
+
endif # BUILD_LUA_CAIRO
if BUILD_LUA_IMLIB2
-libimlib2 = libimlib2.la
+libimlib2_built_sources = libimlib2.c
-libimlib2_la_CFLAGS = $(Imlib2_CFLAGS) $(tolua_CFLAGS)
-libimlib2_la_LIBADD = $(Imlib2_LIBS) $(tolua_LIBS)
+libimlib2 = libimlib2.la
libimlib2.c: imlib2.pkg
${toluapp} -n imlib2 -o $@ $(srcdir)/imlib2.pkg
+libimlib2_la_CFLAGS = $(Imlib2_CFLAGS) $(tolua_CFLAGS)
+libimlib2_la_LIBADD = $(Imlib2_LIBS) $(tolua_LIBS)
+libimlib2_la_SOURCES = imlib2.pkg libimlib2.c
+
endif # BUILD_LUA_IMLIB2
pkglib_LTLIBRARIES = $(libcairo) $(libimlib2)
endif # BUILD_LUA
+EXTRA_DIST = libcairo-helper.h
+BUILT_SOURCES = $(cairo_built_sources) $(imlib2_built_sources)
+
# vi:set ts=4 sw=4 noet ai nocindent syntax=automake:
$#include <cairo.h>
$#include <cairo-xlib.h>
$#include <X11/Xlib.h>
+$#include "libcairo-helper.h"
/*
* This code was mostly copied from cairo.h and cairo-xlib.h with comments
* removed. The licence noticed below is present for the sake of clarity.
double yy;
double x0;
double y0;
+ static tolua_outside cairo_matrix_t* create_cairo_matrix_t @ create();
} cairo_matrix_t;
typedef int cairo_bool_t;
double height;
double x_advance;
double y_advance;
+ static tolua_outside cairo_text_extents_t* create_cairo_text_extents_t @ create();
} cairo_text_extents_t;
typedef struct {
double height;
double max_x_advance;
double max_y_advance;
+ static tolua_outside cairo_font_extents_t* create_cairo_font_extents_t @ create();
} cairo_font_extents_t;
typedef enum _cairo_font_slant {
--- /dev/null
+/* -*- mode: c; c-basic-offset: 4; tab-width: 4; indent-tabs-mode: t -*-
+ *
+ * Conky, a system monitor, based on torsmo
+ *
+ * Please see COPYING for details
+ *
+ * Copyright (c) 2005-2009 Brenden Matthews, Philip Kovacs, et. al.
+ * (see AUTHORS)
+ * All rights reserved.
+ *
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ *
+ */
+
+#ifndef _LIBCAIRO_HELPER_H_
+#define _LIBCAIRO_HELPER_H_
+
+#include <cairo.h>
+
+cairo_text_extents_t *create_cairo_text_extents_t(void) {
+ return calloc(1, sizeof(cairo_text_extents_t));
+}
+
+cairo_font_extents_t *create_cairo_font_extents_t(void) {
+ return calloc(1, sizeof(cairo_font_extents_t));
+}
+
+cairo_matrix_t *create_cairo_matrix_t(void) {
+ return calloc(1, sizeof(cairo_matrix_t));
+}
+
+#endif /* _LIBCAIRO_HELPER_H_ */
projects / monky / commitdiff