1 | //roarx11.c: |
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2 | |
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3 | /* |
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4 | * Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2010 |
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5 | * |
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6 | * This file is part of libroar a part of RoarAudio, |
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7 | * a cross-platform sound system for both, home and professional use. |
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8 | * See README for details. |
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9 | * |
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10 | * This file is free software; you can redistribute it and/or modify |
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11 | * it under the terms of the GNU General Public License version 3 |
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12 | * as published by the Free Software Foundation. |
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13 | * |
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14 | * libroar is distributed in the hope that it will be useful, |
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15 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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16 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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17 | * GNU General Public License for more details. |
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18 | * |
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19 | * You should have received a copy of the GNU General Public License |
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20 | * along with this software; see the file COPYING. If not, write to |
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21 | * the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. |
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22 | * |
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23 | * NOTE for everyone want's to change something and send patches: |
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24 | * read README and HACKING! There a addition information on |
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25 | * the license of this document you need to read before you send |
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26 | * any patches. |
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27 | * |
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28 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
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29 | * or libpulse*: |
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30 | * The libs libroaresd, libroararts and libroarpulse link this lib |
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31 | * and are therefore GPL. Because of this it may be illigal to use |
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32 | * them with any software that uses libesd, libartsc or libpulse*. |
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33 | */ |
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34 | |
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35 | #include "libroar.h" |
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36 | |
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37 | struct roar_x11_connection * roar_x11_connect(char * display) { |
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38 | #ifdef ROAR_HAVE_LIBX11 |
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39 | struct roar_libroar_config * config = roar_libroar_get_config(); |
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40 | struct roar_x11_connection * con; |
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41 | |
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42 | if ( display == NULL ) |
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43 | display = config->x11.display; |
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44 | |
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45 | if ( (con = roar_mm_malloc(sizeof(struct roar_x11_connection))) == NULL ) |
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46 | return NULL; |
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47 | |
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48 | if ( (con->display = XOpenDisplay(display)) == NULL ) { |
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49 | roar_mm_free(con); |
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50 | return NULL; |
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51 | } |
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52 | |
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53 | con->close = 1; |
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54 | |
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55 | return con; |
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56 | #else |
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57 | return NULL; |
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58 | #endif |
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59 | } |
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60 | |
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61 | struct roar_x11_connection * roar_x11_connect_display(_ROAR_X11_DISPLAY * display) { |
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62 | #ifdef ROAR_HAVE_LIBX11 |
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63 | struct roar_x11_connection * con; |
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64 | |
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65 | if ( display == NULL ) |
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66 | return NULL; |
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67 | |
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68 | if ( (con = roar_mm_malloc(sizeof(struct roar_x11_connection))) == NULL ) |
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69 | return NULL; |
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70 | |
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71 | con->close = 0; |
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72 | con->display = display; |
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73 | |
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74 | return con; |
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75 | #else |
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76 | return NULL; |
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77 | #endif |
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78 | } |
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79 | |
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80 | int roar_x11_disconnect(struct roar_x11_connection * con) { |
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81 | #ifdef ROAR_HAVE_LIBX11 |
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82 | int ret = 0; |
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83 | |
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84 | if ( con == NULL ) |
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85 | return -1; |
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86 | |
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87 | if ( con->close ) |
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88 | ret = XCloseDisplay(con->display); |
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89 | |
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90 | roar_mm_free(con); |
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91 | |
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92 | return ret; |
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93 | #else |
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94 | return -1; |
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95 | #endif |
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96 | } |
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97 | |
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98 | int roar_x11_set_prop(struct roar_x11_connection * con, const char * key, const char * val) { |
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99 | #ifdef ROAR_HAVE_LIBX11 |
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100 | Atom a; |
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101 | |
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102 | if ( con == NULL ) |
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103 | return -1; |
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104 | |
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105 | a = XInternAtom(con->display, key, False); |
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106 | |
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107 | XChangeProperty(con->display, RootWindow(con->display, 0), a, XA_STRING, 8, PropModeReplace, (const unsigned char*) val, strlen(val)+1); |
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108 | |
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109 | return 0; |
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110 | #else |
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111 | return -1; |
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112 | #endif |
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113 | } |
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114 | |
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115 | int roar_x11_delete_prop(struct roar_x11_connection * con, const char * key) { |
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116 | #ifdef ROAR_HAVE_LIBX11 |
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117 | Atom a; |
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118 | if ( con == NULL ) |
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119 | return -1; |
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120 | |
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121 | a = XInternAtom(con->display, key, False); |
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122 | XDeleteProperty(con->display, RootWindow(con->display, 0), a); |
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123 | |
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124 | return 0; |
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125 | #else |
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126 | return -1; |
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127 | #endif |
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128 | } |
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129 | |
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130 | char * roar_x11_get_prop(struct roar_x11_connection * con, const char * key) { |
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131 | #ifdef ROAR_HAVE_LIBX11 |
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132 | unsigned long nitems; |
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133 | unsigned long nbytes_after; |
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134 | unsigned char * prop = NULL; |
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135 | char * ret = NULL; |
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136 | int actual_format; |
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137 | Atom actual_type; |
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138 | Atom a; |
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139 | |
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140 | a = XInternAtom(con->display, key, False); |
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141 | |
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142 | if ( XGetWindowProperty(con->display, RootWindow(con->display, 0), a, |
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143 | 0, 256, False, XA_STRING, &actual_type, |
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144 | &actual_format, &nitems, &nbytes_after, &prop) != Success ) { |
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145 | if ( prop != NULL ) |
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146 | XFree(prop); |
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147 | |
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148 | return NULL; |
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149 | } |
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150 | |
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151 | if ( prop == NULL ) |
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152 | return NULL; |
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153 | |
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154 | if (actual_type != XA_STRING) { |
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155 | XFree(prop); |
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156 | |
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157 | return NULL; |
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158 | } |
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159 | |
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160 | ret = roar_mm_malloc(nitems+1); |
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161 | |
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162 | memcpy(ret, prop, nitems); |
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163 | ret[nitems] = 0; |
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164 | |
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165 | XFree(prop); |
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166 | |
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167 | return ret; |
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168 | #else |
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169 | return NULL; |
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170 | #endif |
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171 | } |
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172 | |
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173 | //ll |
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