/*
* This function detaches 'con' from its parent and inserts it either before or
* after 'target'.
*
*/
static void insert_con_into(Con *con, Con *target, position_t position) {
Con *parent = target->parent;
/* We need to preserve the old con->parent. While it might still be used to
* insert the entry before/after it, we call the on_remove_child callback
* afterwards which might then close the con if it is empty. */
Con *old_parent = con->parent;
con_detach(con);
con_fix_percent(con->parent);
/* When moving to a workspace, we respect the user’s configured
* workspace_layout */
if (parent->type == CT_WORKSPACE) {
Con *split = workspace_attach_to(parent);
if (split != parent) {
DLOG("Got a new split con, using that one instead\n");
con->parent = split;
con_attach(con, split, false);
DLOG("attached\n");
con->percent = 0.0;
con_fix_percent(split);
con = split;
DLOG("ok, continuing with con %p instead\n", con);
con_detach(con);
}
}
con->parent = parent;
if (position == BEFORE) {
TAILQ_INSERT_BEFORE(target, con, nodes);
TAILQ_INSERT_HEAD(&(parent->focus_head), con, focused);
} else if (position == AFTER) {
TAILQ_INSERT_AFTER(&(parent->nodes_head), target, con, nodes);
TAILQ_INSERT_HEAD(&(parent->focus_head), con, focused);
}
/* Pretend the con was just opened with regards to size percent values.
* Since the con is moved to a completely different con, the old value
* does not make sense anyways. */
con->percent = 0.0;
con_fix_percent(parent);
CALL(old_parent, on_remove_child);
}
/*
* This function detaches 'con' from its parent and puts it in the given
* workspace. Position is determined by the direction of movement into the
* workspace container.
*
*/
static void attach_to_workspace(Con *con, Con *ws, direction_t direction) {
con_detach(con);
con_fix_percent(con->parent);
CALL(con->parent, on_remove_child);
con->parent = ws;
if (direction == D_RIGHT || direction == D_DOWN) {
TAILQ_INSERT_HEAD(&(ws->nodes_head), con, nodes);
TAILQ_INSERT_HEAD(&(ws->focus_head), con, focused);
} else {
TAILQ_INSERT_TAIL(&(ws->nodes_head), con, nodes);
TAILQ_INSERT_TAIL(&(ws->focus_head), con, focused);
}
/* Pretend the con was just opened with regards to size percent values.
* Since the con is moved to a completely different con, the old value
* does not make sense anyways. */
con->percent = 0.0;
con_fix_percent(ws);
}
int resize_graphical_handler(Con *first, Con *second, orientation_t orientation, const xcb_button_press_event_t *event) {
DLOG("resize handler\n");
/* TODO: previously, we were getting a rect containing all screens. why? */
Con *output = con_get_output(first);
DLOG("x = %d, width = %d\n", output->rect.x, output->rect.width);
x_mask_event_mask(~XCB_EVENT_MASK_ENTER_WINDOW);
xcb_flush(conn);
uint32_t mask = 0;
uint32_t values[2];
mask = XCB_CW_OVERRIDE_REDIRECT;
values[0] = 1;
/* Open a new window, the resizebar. Grab the pointer and move the window around
as the user moves the pointer. */
xcb_window_t grabwin = create_window(conn, output->rect, XCB_COPY_FROM_PARENT, XCB_COPY_FROM_PARENT,
XCB_WINDOW_CLASS_INPUT_ONLY, XCURSOR_CURSOR_POINTER, true, mask, values);
/* Keep track of the coordinate orthogonal to motion so we can determine
* the length of the resize afterward. */
uint32_t initial_position, new_position;
/* Configure the resizebar and snap the pointer. The resizebar runs along
* the rect of the second con and follows the motion of the pointer. */
Rect helprect;
if (orientation == HORIZ) {
helprect.x = second->rect.x;
helprect.y = second->rect.y;
helprect.width = logical_px(2);
helprect.height = second->rect.height;
initial_position = second->rect.x;
xcb_warp_pointer(conn, XCB_NONE, event->root, 0, 0, 0, 0,
second->rect.x, event->root_y);
} else {
helprect.x = second->rect.x;
helprect.y = second->rect.y;
helprect.width = second->rect.width;
helprect.height = logical_px(2);
initial_position = second->rect.y;
xcb_warp_pointer(conn, XCB_NONE, event->root, 0, 0, 0, 0,
event->root_x, second->rect.y);
}
mask = XCB_CW_BACK_PIXEL;
values[0] = config.client.focused.border;
mask |= XCB_CW_OVERRIDE_REDIRECT;
values[1] = 1;
xcb_window_t helpwin = create_window(conn, helprect, XCB_COPY_FROM_PARENT, XCB_COPY_FROM_PARENT,
XCB_WINDOW_CLASS_INPUT_OUTPUT, (orientation == HORIZ ? XCURSOR_CURSOR_RESIZE_HORIZONTAL : XCURSOR_CURSOR_RESIZE_VERTICAL), true, mask, values);
xcb_circulate_window(conn, XCB_CIRCULATE_RAISE_LOWEST, helpwin);
xcb_flush(conn);
/* `new_position' will be updated by the `resize_callback'. */
new_position = initial_position;
const struct callback_params params = {orientation, output, helpwin, &new_position};
/* `drag_pointer' blocks until the drag is completed. */
drag_result_t drag_result = drag_pointer(NULL, event, grabwin, BORDER_TOP, 0, resize_callback, ¶ms);
xcb_destroy_window(conn, helpwin);
xcb_destroy_window(conn, grabwin);
xcb_flush(conn);
/* User cancelled the drag so no action should be taken. */
if (drag_result == DRAG_REVERT)
return 0;
int pixels = (new_position - initial_position);
DLOG("Done, pixels = %d\n", pixels);
// if we got thus far, the containers must have
// percentages associated with them
assert(first->percent > 0.0);
assert(second->percent > 0.0);
// calculate the new percentage for the first container
double new_percent, difference;
double percent = first->percent;
DLOG("percent = %f\n", percent);
int original = (orientation == HORIZ ? first->rect.width : first->rect.height);
DLOG("original = %d\n", original);
new_percent = (original + pixels) * (percent / original);
difference = percent - new_percent;
DLOG("difference = %f\n", difference);
DLOG("new percent = %f\n", new_percent);
first->percent = new_percent;
// calculate the new percentage for the second container
double s_percent = second->percent;
second->percent = s_percent + difference;
DLOG("second->percent = %f\n", second->percent);
// now we must make sure that the sum of the percentages remain 1.0
con_fix_percent(first->parent);
return 0;
}
