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make sure windows always overlap with their monitor

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This commit is contained in:
Devin J. Pohly 2020-04-26 14:08:47 -05:00
parent 48a8adb70a
commit 88f0ea343b
1 changed files with 29 additions and 4 deletions
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33
dwl.c
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@ -124,6 +124,7 @@ struct render_data {
};
/* function declarations */
static void applybounds(Client *c, struct wlr_box *bbox);
static void arrange(Monitor *m);
static void axisnotify(struct wl_listener *listener, void *data);
static void buttonpress(struct wl_listener *listener, void *data);
@ -156,7 +157,7 @@ static void refocus(void);
static void render(struct wlr_surface *surface, int sx, int sy, void *data);
static void renderclients(Monitor *m, struct timespec *now);
static void rendermon(struct wl_listener *listener, void *data);
static void resize(Client *c, int x, int y, int w, int h);
static void resize(Client *c, int x, int y, int w, int h, int interact);
static void resizemouse(const Arg *arg);
static void run(char *startup_cmd);
static void scalebox(struct wlr_box *box, float scale);
@ -207,6 +208,7 @@ static Client *grabc;
static double grabsx, grabsy; /* surface-relative */
static struct wlr_output_layout *output_layout;
static struct wlr_box sgeom;
static struct wl_list mons;
static struct wl_listener new_output;
static Monitor *selmon;
@ -214,6 +216,23 @@ static Monitor *selmon;
/* configuration, allows nested code to access above variables */
#include "config.h"
void
applybounds(Client *c, struct wlr_box *bbox)
{
/* set minimum possible */
c->w = MAX(1, c->w);
c->h = MAX(1, c->h);
if (c->x >= bbox->x + bbox->width)
c->x = bbox->x + bbox->width - c->w;
if (c->y >= bbox->y + bbox->height)
c->y = bbox->y + bbox->height - c->h;
if (c->x + c->w + 2 * c->bw <= bbox->x)
c->x = bbox->x;
if (c->y + c->h + 2 * c->bw <= bbox->y)
c->y = bbox->y;
}
void
arrange(Monitor *m)
{
@ -361,6 +380,7 @@ createmon(struct wl_listener *listener, void *data)
* output (such as DPI, scale factor, manufacturer, etc).
*/
wlr_output_layout_add_auto(output_layout, wlr_output);
sgeom = *wlr_output_layout_get_box(output_layout, NULL);
}
void
@ -630,6 +650,7 @@ maprequest(struct wl_listener *listener, void *data)
/* XXX Apply client rules here */
/* Insert this client into the list and focus it. */
c->mon = selmon;
applybounds(c, &c->mon->m);
c->tags = c->mon->tagset[c->mon->seltags];
wl_list_insert(&clients, &c->link);
wl_list_insert(&fstack, &c->flink);
@ -666,7 +687,7 @@ motionnotify(uint32_t time)
/* XXX assumes the surface is at (0,0) within grabc */
resize(grabc, cursor->x - grabsx - grabc->bw,
cursor->y - grabsy - grabc->bw,
grabc->w, grabc->h);
grabc->w, grabc->h, 1);
return;
} else if (cursor_mode == CurResize) {
/*
@ -675,7 +696,7 @@ motionnotify(uint32_t time)
* the new size, then commit any movement that was prepared.
*/
resize(grabc, grabc->x, grabc->y,
cursor->x - grabc->x, cursor->y - grabc->y);
cursor->x - grabc->x, cursor->y - grabc->y, 1);
return;
}
@ -917,12 +938,14 @@ rendermon(struct wl_listener *listener, void *data)
}
void
resize(Client *c, int x, int y, int w, int h)
resize(Client *c, int x, int y, int w, int h, int interact)
{
struct wlr_box *bbox = interact ? &sgeom : &c->mon->w;
c->x = x;
c->y = y;
c->w = w;
c->h = h;
applybounds(c, bbox);
/* wlroots makes this a no-op if size hasn't changed */
wlr_xdg_toplevel_set_size(c->xdg_surface,
c->w - 2 * c->bw, c->h - 2 * c->bw);
@ -1035,6 +1058,8 @@ sendmon(Client *c, Monitor *m)
if (c->mon == m)
return;
c->mon = m;
/* Make sure window actually overlaps with the monitor */
applybounds(c, &c->mon->m);
/* XXX should check all outputs, also needs a send_leave counterpart */
wlr_surface_send_enter(c->xdg_surface->surface, c->mon->wlr_output);
c->tags = m->tagset[m->seltags]; /* assign tags of target monitor */