]>
Dogcows Code - chaz/openbox/blob - plugins/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 "../kernel/config.h"
9 #define DEFAULT_RESISTANCE 10
11 void plugin_setup_config()
15 config_def_set(config_def_new("resistance", Config_Integer
,
17 "The amount of resistance to provide when "
18 "moving windows past edges."
20 config_def_set(config_def_new("resistance.windows", Config_Bool
,
21 "Edge Resistance On Windows",
22 "Whether to provide edge resistance when "
23 "moving windows past the edge of another "
26 config_set("resistance.windows", Config_Bool
, val
);
29 static void resist_move(Client
*c
, int *x
, int *y
)
33 int l
, t
, r
, b
; /* requested edges */
34 int al
, at
, ar
, ab
; /* screen area edges */
35 int cl
, ct
, cr
, cb
; /* current edges */
36 int w
, h
; /* current size */
37 Client
*snapx
= NULL
, *snapy
= NULL
;
38 ConfigValue resist
, window_resist
;
40 if (!config_get("resistance", Config_Integer
, &resist
) ||
42 resist
.integer
= DEFAULT_RESISTANCE
;
43 config_set("resistance", Config_Integer
, resist
);
45 if (!config_get("resistance.windows", Config_Bool
, &window_resist
))
46 g_assert_not_reached();
48 w
= c
->frame
->area
.width
;
49 h
= c
->frame
->area
.height
;
56 cl
= c
->frame
->area
.x
;
57 ct
= c
->frame
->area
.y
;
58 cr
= cl
+ c
->frame
->area
.width
- 1;
59 cb
= ct
+ c
->frame
->area
.height
- 1;
61 /* snap to other clients */
62 if (window_resist
.bool)
63 for (it
= stacking_list
; it
!= NULL
; it
= it
->next
) {
65 int tl
, tt
, tr
, tb
; /* 1 past the target's edges on each side */
68 /* don't snap to self or non-visibles */
69 if (!target
->frame
->visible
|| target
== c
) continue;
71 tl
= target
->frame
->area
.x
- 1;
72 tt
= target
->frame
->area
.y
- 1;
73 tr
= tl
+ target
->frame
->area
.width
+ 1;
74 tb
= tt
+ target
->frame
->area
.height
+ 1;
76 /* snapx and snapy ensure that the window snaps to the top-most
77 window edge available, without going all the way from
78 bottom-to-top in the stacking list
81 if (ct
< tb
&& cb
> tt
) {
82 if (cl
>= tr
&& l
< tr
&& l
>= tr
- resist
.integer
)
83 *x
= tr
, snapx
= target
;
84 else if (cr
<= tl
&& r
> tl
&& r
<= tl
+ resist
.integer
)
85 *x
= tl
- w
+ 1, snapx
= target
;
87 /* try to corner snap to the window */
88 if (ct
> tt
&& t
<= tt
&& t
> tt
- resist
.integer
)
89 *y
= tt
+ 1, snapy
= target
;
90 else if (cb
< tb
&& b
>= tb
&& b
< tb
+ resist
.integer
)
91 *y
= tb
- h
, snapy
= target
;
96 if (cl
< tr
&& cr
> tl
) {
97 if (ct
>= tb
&& t
< tb
&& t
>= tb
- resist
.integer
)
98 *y
= tb
, snapy
= target
;
99 else if (cb
<= tt
&& b
> tt
&& b
<= tt
+ resist
.integer
)
100 *y
= tt
- h
+ 1, snapy
= target
;
102 /* try to corner snap to the window */
103 if (cl
> tl
&& l
<= tl
&& l
> tl
- resist
.integer
)
104 *x
= tl
+ 1, snapx
= target
;
105 else if (cr
< tr
&& r
>= tr
&& r
< tr
+ resist
.integer
)
106 *x
= tr
- w
, snapx
= target
;
111 if (snapx
&& snapy
) break;
114 /* get the screen boundaries */
115 area
= screen_area(c
->desktop
);
118 ar
= al
+ area
->width
- 1;
119 ab
= at
+ area
->height
- 1;
121 /* snap to screen edges */
122 if (cl
>= al
&& l
< al
&& l
>= al
- resist
.integer
)
124 else if (cr
<= ar
&& r
> ar
&& r
<= ar
+ resist
.integer
)
126 if (ct
>= at
&& t
< at
&& t
>= at
- resist
.integer
)
128 else if (cb
<= ab
&& b
> ab
&& b
< ab
+ resist
.integer
)
132 static void resist_size(Client
*c
, int *w
, int *h
, Corner corn
)
135 Client
*target
; /* target */
136 int l
, t
, r
, b
; /* my left, top, right and bottom sides */
137 int dlt
, drb
; /* my destination left/top and right/bottom sides */
138 int tl
, tt
, tr
, tb
; /* target's left, top, right and bottom bottom sides */
140 int al
, at
, ar
, ab
; /* screen boundaries */
141 Client
*snapx
= NULL
, *snapy
= NULL
;
142 ConfigValue resist
, window_resist
;
144 if (!config_get("resistance", Config_Integer
, &resist
) ||
145 resist
.integer
< 0) {
146 resist
.integer
= DEFAULT_RESISTANCE
;
147 config_set("resistance", Config_Integer
, resist
);
149 if (!config_get("resistance.windows", Config_Bool
, &window_resist
))
150 g_assert_not_reached();
152 l
= c
->frame
->area
.x
;
153 r
= l
+ c
->frame
->area
.width
- 1;
154 t
= c
->frame
->area
.y
;
155 b
= t
+ c
->frame
->area
.height
- 1;
157 /* get the screen boundaries */
158 area
= screen_area(c
->desktop
);
161 ar
= al
+ area
->width
- 1;
162 ab
= at
+ area
->height
- 1;
164 /* snap to other windows */
165 if (window_resist
.bool) {
166 for (it
= stacking_list
; it
!= NULL
; it
= it
->next
) {
169 /* don't snap to invisibles or ourself */
170 if (!target
->frame
->visible
|| target
== c
) continue;
172 tl
= target
->frame
->area
.x
;
173 tr
= target
->frame
->area
.x
+ target
->frame
->area
.width
- 1;
174 tt
= target
->frame
->area
.y
;
175 tb
= target
->frame
->area
.y
+ target
->frame
->area
.height
- 1;
178 /* horizontal snapping */
179 if (t
< tb
&& b
> tt
) {
182 case Corner_BottomLeft
:
184 drb
= r
+ *w
- c
->frame
->area
.width
;
185 if (r
< tl
&& drb
>= tl
&& drb
< tl
+ resist
.integer
)
186 *w
= tl
- l
, snapx
= target
;
188 case Corner_TopRight
:
189 case Corner_BottomRight
:
190 dlt
= l
- *w
+ c
->frame
->area
.width
;
192 if (l
> tr
&& dlt
<= tr
&& dlt
> tr
- resist
.integer
)
193 *w
= r
- tr
, snapx
= target
;
200 /* vertical snapping */
201 if (l
< tr
&& r
> tl
) {
204 case Corner_TopRight
:
206 drb
= b
+ *h
- c
->frame
->area
.height
;
207 if (b
< tt
&& drb
>= tt
&& drb
< tt
+ resist
.integer
)
208 *h
= tt
- t
, snapy
= target
;
210 case Corner_BottomLeft
:
211 case Corner_BottomRight
:
212 dlt
= t
- *h
+ c
->frame
->area
.height
;
214 if (t
> tb
&& dlt
<= tb
&& dlt
> tb
- resist
.integer
)
215 *h
= b
- tb
, snapy
= target
;
221 /* snapped both ways */
222 if (snapx
&& snapy
) break;
226 /* snap to screen edges */
228 /* horizontal snapping */
231 case Corner_BottomLeft
:
233 drb
= r
+ *w
- c
->frame
->area
.width
;
234 if (r
<= ar
&& drb
> ar
&& drb
<= ar
+ resist
.integer
)
237 case Corner_TopRight
:
238 case Corner_BottomRight
:
239 dlt
= l
- *w
+ c
->frame
->area
.width
;
241 if (l
>= al
&& dlt
< al
&& dlt
>= al
- resist
.integer
)
246 /* vertical snapping */
249 case Corner_TopRight
:
251 drb
= b
+ *h
- c
->frame
->area
.height
;
252 if (b
<= ab
&& drb
> ab
&& drb
<= ab
+ resist
.integer
)
255 case Corner_BottomLeft
:
256 case Corner_BottomRight
:
257 dlt
= t
- *h
+ c
->frame
->area
.height
;
259 if (t
>= at
&& dlt
< at
&& dlt
>= at
- resist
.integer
)
264 /* round down for size increments */
265 *w
-= c
->frame
->area
.width
+ c
->frame
->size
.left
+ c
->frame
->size
.right
;
266 *w
= *w
/ c
->size_inc
.width
* c
->size_inc
.width
;
267 *w
+= c
->frame
->area
.width
+ c
->frame
->size
.left
+ c
->frame
->size
.right
;
269 *h
-= c
->frame
->area
.height
+ c
->frame
->size
.top
+ c
->frame
->size
.bottom
;
270 *h
= *h
/ c
->size_inc
.height
* c
->size_inc
.height
;
271 *h
+= c
->frame
->area
.height
+ c
->frame
->size
.top
+ c
->frame
->size
.bottom
;
274 static void event(ObEvent
*e
, void *foo
)
276 if (e
->type
== Event_Client_Moving
)
277 resist_move(e
->data
.c
.client
, &e
->data
.c
.num
[0], &e
->data
.c
.num
[1]);
278 else if (e
->type
== Event_Client_Resizing
)
279 resist_size(e
->data
.c
.client
, &e
->data
.c
.num
[0], &e
->data
.c
.num
[1],
283 void plugin_startup()
285 dispatch_register(Event_Client_Moving
| Event_Client_Resizing
,
286 (EventHandler
)event
, NULL
);
289 void plugin_shutdown()
291 dispatch_register(0, (EventHandler
)event
, NULL
);
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