2 * widget.c - widget managing
4 * Copyright © 2007-2008 Julien Danjou <julien@danjou.info>
5 * Copyright © 2007 Aldo Cortesi <aldo@nullcube.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License along
18 * with this program; if not, write to the Free Software Foundation, Inc.,
19 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
24 #include "statusbar.h"
27 extern AwesomeConf globalconf
;
29 #include "widgetgen.h"
31 /** Compute widget alignment.
32 * This will process all widget starting at `widget' and will check their
33 * alignment and guess it if set to AlignAuto.
34 * \param widget a linked list of all widgets
37 widget_calculate_alignments(Widget
*widget
)
39 for(; widget
&& widget
->alignment
!= AlignFlex
; widget
= widget
->next
)
41 switch(widget
->alignment
)
44 warn("widgets cannot be center aligned\n");
46 widget
->alignment
= AlignLeft
;
54 for(widget
= widget
->next
; widget
; widget
= widget
->next
)
55 switch(widget
->alignment
)
58 warn("multiple flex widgets (%s) in panel -"
59 " ignoring flex for all but the first.\n", widget
->name
);
60 widget
->alignment
= AlignRight
;
63 warn("widget %s cannot be center aligned\n", widget
->name
);
65 widget
->alignment
= AlignRight
;
72 /** Compute offset for drawing the first pixel of a widget.
73 * \param barwidth the statusbar width
74 * \param widgetwidth the widget width
75 * \param alignment the widget alignment on statusbar
76 * \return the x coordinate to draw at
79 widget_calculate_offset(int barwidth
, int widgetwidth
, int offset
, int alignment
)
87 return barwidth
- offset
- widgetwidth
;
90 /** Find a widget on a screen by its name
91 * \param name the widget name
92 * \param screen the screen to look into
96 widget_find(char *name
, int screen
)
101 for(sb
= globalconf
.screens
[screen
].statusbar
; sb
; sb
= sb
->next
)
102 for(widget
= sb
->widgets
; widget
; widget
= widget
->next
)
103 if(a_strcmp(name
, widget
->name
) == 0)
109 /** Common function for button press event on widget.
110 * It will look into configuration to find the callback function to call.
111 * \param widget the widget
112 * \param ev the XButtonPressedEvent the widget received
115 widget_common_button_press(Widget
*widget
, XButtonPressedEvent
*ev
)
119 for(b
= widget
->buttons
; b
; b
= b
->next
)
120 if(ev
->button
== b
->button
&& CLEANMASK(ev
->state
) == b
->mod
&& b
->func
)
122 b
->func(widget
->statusbar
->screen
, b
->arg
);
127 /** Common tell function for widget, which only warn user that widget
128 * cannot be told anything
129 * \param widget the widget
130 * \param command unused argument
133 widget_common_tell(Widget
*widget
, char *command
__attribute__ ((unused
)))
135 warn("%s widget does not accept commands.\n", widget
->name
);
138 /** Common function for creating a widget
139 * \param widget The allocated widget
140 * \param statusbar the statusbar the widget is on
141 * \param config the cfg_t structure we will parse to set common info
144 widget_common_new(Widget
*widget
, Statusbar
*statusbar
, cfg_t
*config
)
146 widget
->statusbar
= statusbar
;
147 widget
->name
= a_strdup(cfg_title(config
));
148 widget
->tell
= widget_common_tell
;
149 widget
->button_press
= widget_common_button_press
;
150 widget
->area
.x
= cfg_getint(config
, "x");
151 widget
->area
.y
= cfg_getint(config
, "y");
152 widget
->user_supplied_x
= (widget
->area
.x
!= (int) 0xffffffff);
153 widget
->user_supplied_y
= (widget
->area
.y
!= (int) 0xffffffff);
156 /** Invalidate widgets which should be refresh upon
157 * external modifications. Widget who watch flags will
158 * be set to be refreshed.
159 * \param screen screen id
160 * \param flags cache flags
163 widget_invalidate_cache(int screen
, int flags
)
165 Statusbar
*statusbar
;
168 for(statusbar
= globalconf
.screens
[screen
].statusbar
;
170 statusbar
= statusbar
->next
)
171 for(widget
= statusbar
->widgets
; widget
; widget
= widget
->next
)
172 if(widget
->cache
.flags
& flags
)
173 widget
->cache
.needs_update
= True
;
176 /** Send command to widget
177 * \param screen Screen ID
178 * \param arg Widget command. Syntax depends on specific widget.
179 * \ingroup ui_callback
182 uicb_widget_tell(int screen
, char *arg
)
190 warn("Must specify a widget.\n");
195 p
= strtok(arg
, " ");
198 warn("Ignoring malformed widget command.\n");
202 widget
= widget_find(p
, screen
);
205 warn("No such widget: %s\n", p
);
209 if(p
+ a_strlen(p
) < arg
+ len
)
211 p
= p
+ a_strlen(p
) + 1;
213 command
= p_new(char, len
+ 1);
214 a_strncpy(command
, len
+ 1, p
, len
);
215 widget
->tell(widget
, command
);
219 widget
->tell(widget
, NULL
);
221 widget
->cache
.needs_update
= True
;
226 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=80