]>
Dogcows Code - chaz/openbox/blob - plugins/resistance/resistance.c
1 #include "kernel/dispatch.h"
2 #include "kernel/client.h"
3 #include "kernel/frame.h"
4 #include "kernel/stacking.h"
5 #include "kernel/screen.h"
6 #include "parser/parse.h"
7 #include "resistance.h"
10 static int resistance
;
11 static gboolean resist_windows
;
13 static void parse_xml(xmlDocPtr doc
, xmlNodePtr node
, void *d
)
17 if ((n
= parse_find_node("strength", node
)))
18 resistance
= parse_int(doc
, n
);
19 if ((n
= parse_find_node("windows", node
)))
20 resist_windows
= parse_bool(doc
, n
);
23 void plugin_setup_config()
25 resistance
= DEFAULT_RESISTANCE
;
26 resist_windows
= DEFAULT_RESIST_WINDOWS
;
28 parse_register("resistance", parse_xml
, NULL
);
31 static void resist_move(Client
*c
, int *x
, int *y
)
35 int l
, t
, r
, b
; /* requested edges */
36 int al
, at
, ar
, ab
; /* screen area edges */
37 int cl
, ct
, cr
, cb
; /* current edges */
38 int w
, h
; /* current size */
39 Client
*snapx
= NULL
, *snapy
= NULL
;
41 w
= c
->frame
->area
.width
;
42 h
= c
->frame
->area
.height
;
49 cl
= c
->frame
->area
.x
;
50 ct
= c
->frame
->area
.y
;
51 cr
= cl
+ c
->frame
->area
.width
- 1;
52 cb
= ct
+ c
->frame
->area
.height
- 1;
54 /* snap to other clients */
56 for (it
= stacking_list
; it
!= NULL
; it
= it
->next
) {
58 int tl
, tt
, tr
, tb
; /* 1 past the target's edges on each side */
60 if (!WINDOW_IS_CLIENT(it
->data
))
63 /* don't snap to self or non-visibles */
64 if (!target
->frame
->visible
|| target
== c
) continue;
66 tl
= target
->frame
->area
.x
- 1;
67 tt
= target
->frame
->area
.y
- 1;
68 tr
= tl
+ target
->frame
->area
.width
+ 1;
69 tb
= tt
+ target
->frame
->area
.height
+ 1;
71 /* snapx and snapy ensure that the window snaps to the top-most
72 window edge available, without going all the way from
73 bottom-to-top in the stacking list
76 if (ct
< tb
&& cb
> tt
) {
77 if (cl
>= tr
&& l
< tr
&& l
>= tr
- resistance
)
78 *x
= tr
, snapx
= target
;
79 else if (cr
<= tl
&& r
> tl
&& r
<= tl
+ resistance
)
80 *x
= tl
- w
+ 1, snapx
= target
;
82 /* try to corner snap to the window */
83 if (ct
> tt
&& t
<= tt
&& t
> tt
- resistance
)
84 *y
= tt
+ 1, snapy
= target
;
85 else if (cb
< tb
&& b
>= tb
&& b
< tb
+ resistance
)
86 *y
= tb
- h
, snapy
= target
;
91 if (cl
< tr
&& cr
> tl
) {
92 if (ct
>= tb
&& t
< tb
&& t
>= tb
- resistance
)
93 *y
= tb
, snapy
= target
;
94 else if (cb
<= tt
&& b
> tt
&& b
<= tt
+ resistance
)
95 *y
= tt
- h
+ 1, snapy
= target
;
97 /* try to corner snap to the window */
98 if (cl
> tl
&& l
<= tl
&& l
> tl
- resistance
)
99 *x
= tl
+ 1, snapx
= target
;
100 else if (cr
< tr
&& r
>= tr
&& r
< tr
+ resistance
)
101 *x
= tr
- w
, snapx
= target
;
106 if (snapx
&& snapy
) break;
109 /* get the screen boundaries */
110 area
= screen_area(c
->desktop
);
113 ar
= al
+ area
->width
- 1;
114 ab
= at
+ area
->height
- 1;
116 /* snap to screen edges */
117 if (cl
>= al
&& l
< al
&& l
>= al
- resistance
)
119 else if (cr
<= ar
&& r
> ar
&& r
<= ar
+ resistance
)
121 if (ct
>= at
&& t
< at
&& t
>= at
- resistance
)
123 else if (cb
<= ab
&& b
> ab
&& b
< ab
+ resistance
)
127 static void resist_size(Client
*c
, int *w
, int *h
, Corner corn
)
130 Client
*target
; /* target */
131 int l
, t
, r
, b
; /* my left, top, right and bottom sides */
132 int dlt
, drb
; /* my destination left/top and right/bottom sides */
133 int tl
, tt
, tr
, tb
; /* target's left, top, right and bottom bottom sides */
135 int al
, at
, ar
, ab
; /* screen boundaries */
136 Client
*snapx
= NULL
, *snapy
= NULL
;
138 /* don't snap windows with size increments */
139 if (c
->size_inc
.width
> 1 || c
->size_inc
.height
> 1)
142 l
= c
->frame
->area
.x
;
143 r
= l
+ c
->frame
->area
.width
- 1;
144 t
= c
->frame
->area
.y
;
145 b
= t
+ c
->frame
->area
.height
- 1;
147 /* get the screen boundaries */
148 area
= screen_area(c
->desktop
);
151 ar
= al
+ area
->width
- 1;
152 ab
= at
+ area
->height
- 1;
154 /* snap to other windows */
155 if (resist_windows
) {
156 for (it
= stacking_list
; it
!= NULL
; it
= it
->next
) {
157 if (!WINDOW_IS_CLIENT(it
->data
))
161 /* don't snap to invisibles or ourself */
162 if (!target
->frame
->visible
|| target
== c
) continue;
164 tl
= target
->frame
->area
.x
;
165 tr
= target
->frame
->area
.x
+ target
->frame
->area
.width
- 1;
166 tt
= target
->frame
->area
.y
;
167 tb
= target
->frame
->area
.y
+ target
->frame
->area
.height
- 1;
170 /* horizontal snapping */
171 if (t
< tb
&& b
> tt
) {
174 case Corner_BottomLeft
:
176 drb
= r
+ *w
- c
->frame
->area
.width
;
177 if (r
< tl
&& drb
>= tl
&& drb
< tl
+ resistance
)
178 *w
= tl
- l
, snapx
= target
;
180 case Corner_TopRight
:
181 case Corner_BottomRight
:
182 dlt
= l
- *w
+ c
->frame
->area
.width
;
184 if (l
> tr
&& dlt
<= tr
&& dlt
> tr
- resistance
)
185 *w
= r
- tr
, snapx
= target
;
192 /* vertical snapping */
193 if (l
< tr
&& r
> tl
) {
196 case Corner_TopRight
:
198 drb
= b
+ *h
- c
->frame
->area
.height
;
199 if (b
< tt
&& drb
>= tt
&& drb
< tt
+ resistance
)
200 *h
= tt
- t
, snapy
= target
;
202 case Corner_BottomLeft
:
203 case Corner_BottomRight
:
204 dlt
= t
- *h
+ c
->frame
->area
.height
;
206 if (t
> tb
&& dlt
<= tb
&& dlt
> tb
- resistance
)
207 *h
= b
- tb
, snapy
= target
;
213 /* snapped both ways */
214 if (snapx
&& snapy
) break;
218 /* snap to screen edges */
220 /* horizontal snapping */
223 case Corner_BottomLeft
:
225 drb
= r
+ *w
- c
->frame
->area
.width
;
226 if (r
<= ar
&& drb
> ar
&& drb
<= ar
+ resistance
)
229 case Corner_TopRight
:
230 case Corner_BottomRight
:
231 dlt
= l
- *w
+ c
->frame
->area
.width
;
233 if (l
>= al
&& dlt
< al
&& dlt
>= al
- resistance
)
238 /* vertical snapping */
241 case Corner_TopRight
:
243 drb
= b
+ *h
- c
->frame
->area
.height
;
244 if (b
<= ab
&& drb
> ab
&& drb
<= ab
+ resistance
)
247 case Corner_BottomLeft
:
248 case Corner_BottomRight
:
249 dlt
= t
- *h
+ c
->frame
->area
.height
;
251 if (t
>= at
&& dlt
< at
&& dlt
>= at
- resistance
)
257 static void event(ObEvent
*e
, void *foo
)
259 if (e
->type
== Event_Client_Moving
)
260 resist_move(e
->data
.c
.client
, &e
->data
.c
.num
[0], &e
->data
.c
.num
[1]);
261 else if (e
->type
== Event_Client_Resizing
)
262 resist_size(e
->data
.c
.client
, &e
->data
.c
.num
[0], &e
->data
.c
.num
[1],
266 void plugin_startup()
268 dispatch_register(Event_Client_Moving
| Event_Client_Resizing
,
269 (EventHandler
)event
, NULL
);
272 void plugin_shutdown()
274 dispatch_register(0, (EventHandler
)event
, NULL
);
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