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Fix resize bug

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Based on tinywl's 21397e2b
This commit is contained in:
Johan Malm 2020-05-12 20:37:05 +01:00
parent dd32e712ae
commit 48e47fe8f9
4 changed files with 54 additions and 50 deletions
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54
server.c
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@ -202,38 +202,44 @@ static void process_cursor_resize(struct server *server, uint32_t time)
* view on one or two axes, but can also move the view if you resize
* from the top or left edges (or top-left corner).
*
* Note that I took some shortcuts here. In a more fleshed-out
* compositor, you'd wait for the client to prepare a buffer at the new
* size, then commit any movement that was prepared.
* TODO: Wait for the client to prepare a buffer at the new size, then
* commit any movement that was prepared.
*/
struct view *view = server->grabbed_view;
double dx = server->cursor->x - server->grab_x;
double dy = server->cursor->y - server->grab_y;
double x = view->x;
double y = view->y;
int width = server->grab_width;
int height = server->grab_height;
double border_x = server->cursor->x - server->grab_x;
double border_y = server->cursor->y - server->grab_y;
int new_left = server->grab_box.x;
int new_right = server->grab_box.x + server->grab_box.width;
int new_top = server->grab_box.y;
int new_bottom = server->grab_box.y + server->grab_box.height;
if (server->resize_edges & WLR_EDGE_TOP) {
y = server->grab_y + dy;
height -= dy;
if (height < 1) {
y += height;
}
new_top = border_y;
if (new_top >= new_bottom)
new_top = new_bottom - 1;
} else if (server->resize_edges & WLR_EDGE_BOTTOM) {
height += dy;
new_bottom = border_y;
if (new_bottom <= new_top)
new_bottom = new_top + 1;
}
if (server->resize_edges & WLR_EDGE_LEFT) {
x = server->grab_x + dx;
width -= dx;
if (width < 1) {
x += width;
}
new_left = border_x;
if (new_left >= new_right)
new_left = new_right - 1;
} else if (server->resize_edges & WLR_EDGE_RIGHT) {
width += dx;
new_right = border_x;
if (new_right <= new_left)
new_right = new_left + 1;
}
view->x = x;
view->y = y;
wlr_xdg_toplevel_set_size(view->xdg_surface, width, height);
struct wlr_box geo_box;
wlr_xdg_surface_get_geometry(view->xdg_surface, &geo_box);
view->x = new_left - geo_box.x;
view->y = new_top - geo_box.y;
int new_width = new_right - new_left;
int new_height = new_bottom - new_top;
wlr_xdg_toplevel_set_size(view->xdg_surface, new_width, new_height);
}
static void process_cursor_motion(struct server *server, uint32_t time)