/*
* vim:ts=4:sw=4:expandtab
*
* i3 - an improved dynamic tiling window manager
* © 2009 Michael Stapelberg and contributors (see also: LICENSE)
*
* floating.c: Floating windows.
*
*/
#include "all.h"
#include <math.h>
#ifndef MAX
#define MAX(x, y) ((x) > (y) ? (x) : (y))
#endif
/*
* Calculates sum of heights and sum of widths of all currently active outputs
*
*/
static Rect total_outputs_dimensions(void) {
if (TAILQ_EMPTY(&outputs))
return (Rect){0, 0, root_screen->width_in_pixels, root_screen->height_in_pixels};
Output *output;
/* Use Rect to encapsulate dimensions, ignoring x/y */
Rect outputs_dimensions = {0, 0, 0, 0};
TAILQ_FOREACH (output, &outputs, outputs) {
outputs_dimensions.height += output->rect.height;
outputs_dimensions.width += output->rect.width;
}
return outputs_dimensions;
}
/*
* Updates I3_FLOATING_WINDOW by either setting or removing it on the con and
* all its children.
*
*/
static void floating_set_hint_atom(Con *con, bool floating) {
if (!con_is_leaf(con)) {
Con *child;
TAILQ_FOREACH (child, &(con->nodes_head), nodes) {
floating_set_hint_atom(child, floating);
}
}
if (con->window == NULL) {
return;
}
if (floating) {
uint32_t val = 1;
xcb_change_property(conn, XCB_PROP_MODE_REPLACE, con->window->id,
A_I3_FLOATING_WINDOW, XCB_ATOM_CARDINAL, 32, 1, &val);
} else {
xcb_delete_property(conn, con->window->id, A_I3_FLOATING_WINDOW);
}
xcb_flush(conn);
}
/*
* Called when a floating window is created or resized. This function resizes
* the window if its size is higher or lower than the configured maximum/minimum
* size, respectively or when adjustments are needed to conform to the
* configured size increments or aspect ratio limits.
*
* When prefer_height is true and the window needs to be resized because of the
* configured aspect ratio, the width is adjusted first, preserving the previous
* height.
*
*/
void floating_check_size(Con *floating_con, bool prefer_height) {
/* Define reasonable minimal and maximal sizes for floating windows */
const int floating_sane_min_height = 50;
const int floating_sane_min_width = 75;
Rect floating_sane_max_dimensions;
Con *focused_con = con_descend_focused(floating_con);
Rect border_rect = con_border_style_rect(focused_con);
/* We have to do the opposite calculations that render_con() do
* to get the exact size we want. */
border_rect.width = -border_rect.width;
border_rect.width += 2 * focused_con->border_width;
border_rect.height = -border_rect.height;
border_rect.height += 2 * focused_con->border_width;
if (con_border_style(focused_con) == BS_NORMAL) {
border_rect.height += render_deco_height();
}
i3Window *window = focused_con->window;
if (window != NULL) {
/* ICCCM says: If a base size is not provided, the minimum size is to be used in its place
* and vice versa. */
int min_width = (window->min_width ? window->min_width : window->base_width);
int min_height = (window->min_height ? window->min_height : window->base_height);
int base_width = (window->base_width ? window->base_width : window->min_width);
int base_height = (window->base_height ? window->base_height : window->min_height);
if (min_width) {
floating_con->rect.width -= border_rect.width;
floating_con->rect.width = max(floating_con->rect.width, min_width);
floating_con->rect.width += border_rect.width;
}
if (min_height) {
floating_con->rect.height -= border_rect.height;
floating_con->rect.height = max(floating_con->rect.height, min_height);
floating_con->rect.height += border_rect.height;
}
if (window->max_width) {
floating_con->rect.width -= border_rect.width;
floating_con->rect.width = min(floating_con->rect.width, window->max_width);
floating_con->rect.width += border_rect.width;
}
if (window->max_height) {
floating_con->rect.height -= border_rect.height;
floating_con->rect.height = min(floating_con->rect.height, window->max_height);
floating_con->rect.height += border_rect.height;
}
/* Obey the aspect ratio, if any, unless we are in fullscreen mode.
*
* The spec isn’t explicit on whether the aspect ratio hints should be
* respected during fullscreen mode. Other WMs such as Openbox don’t do
* that, and this post suggests that this is the correct way to do it:
* https://mail.gnome.org/archives/wm-spec-list/2003-May/msg00007.html
*
* Ignoring aspect ratio during fullscreen was necessary to fix MPlayer
* subtitle rendering, see https://bugs.i3wm.org/594 */
const double min_ar = window->min_aspect_ratio;
const double max_ar = window->max_aspect_ratio;
if (floating_con->fullscreen_mode == CF_NONE && (min_ar > 0 || max_ar > 0)) {
/* The ICCCM says to subtract the base size from the window size for
* aspect ratio calculations. However, unlike determining the base
* size itself we must not fall back to using the minimum size in
* this case according to the ICCCM. */
double width = floating_con->rect.width - window->base_width - border_rect.width;
double height = floating_con->rect.height - window->base_height - border_rect.height;
const double ar = (double)width / (double)height;
double new_ar = -1;
if (min_ar > 0 && ar < min_ar) {
new_ar = min_ar;
} else if (max_ar > 0 && ar > max_ar) {
new_ar = max_ar;
}
if (new_ar > 0) {
if (prefer_height) {
width = round(height * new_ar);
height = round(width / new_ar);
} else {
height = round(width / new_ar);
width = round(height * new_ar);
}
floating_con->rect.width = width + window->base_width + border_rect.width;
floating_con->rect.height = height + window->base_height + border_rect.height;
}
}
if (window->height_increment &&
floating_con->rect.height >= base_height + border_rect.height) {
floating_con->rect.height -= base_height + border_rect.height;
floating_con->rect.height -= floating_con->rect.height % window->height_increment;
floating_con->rect.height += base_height + border_rect.height;
}
if (window->width_increment &&
floating_con->rect.width >= base_width + border_rect.width) {
floating_con->rect.width -= base_width + border_rect.width;
floating_con->rect.width -= floating_con->rect.width % window->width_increment;
floating_con->rect.width += base_width + border_rect.width;
}
}
/* Unless user requests otherwise (-1), raise the width/height to
* reasonable minimum dimensions */
if (config.floating_minimum_height != -1) {
floating_con->rect.height -= border_rect.height;
if (config.floating_minimum_height == 0) {
floating_con->rect.height = max(floating_con->rect.height, floating_sane_min_height);
} else {
floating_con->rect.height = max(floating_con->rect.height, config.floating_minimum_height);
}
floating_con->rect.height += border_rect.height;
}
if (config.floating_minimum_width != -1) {
floating_con->rect.width -= border_rect.width;
if (config.floating_minimum_width == 0) {
floating_con->rect.width = max(floating_con->rect.width, floating_sane_min_width);
} else {
floating_con->rect.width = max(floating_con->rect.width, config.floating_minimum_width);
}
floating_con->rect.width += border_rect.width;
}
/* Unless user requests otherwise (-1), ensure width/height do not exceed
* configured maxima or, if unconfigured, limit to combined width of all
* outputs */
floating_sane_max_dimensions = total_outputs_dimensions();
if (config.floating_maximum_height != -1) {
floating_con->rect.height -= border_rect.height;
if (config.floating_maximum_height == 0) {
floating_con->rect.height = min(floating_con->rect.height, floating_sane_max_dimensions.height);
} else {
floating_con->rect.height = min(floating_con->rect.height, config.floating_maximum_height);
}
floating_con->rect.height += border_rect.height;
}
if (config.floating_maximum_width != -1) {
floating_con->rect.width -= border_rect.width;
if (config.floating_maximum_width == 0) {
floating_con->rect.width = min(floating_con->rect.width, floating_sane_max_dimensions.width);
} else {
floating_con->rect.width = min(floating_con->rect.width, config.floating_maximum_width);
}
floating_con->rect.width += border_rect.width;
}
}
bool floating_enable(Con *con, bool automatic) {
bool set_focus = (con == focused);
if (con_is_docked(con)) {
LOG("Container is a dock window, not enabling floating mode.\n");
return false;
}
if (con_is_floating(con)) {
LOG("Container is already in floating mode, not doing anything.\n");
return false;
}
if (con->type == CT_WORKSPACE) {
LOG("Container is a workspace, not enabling floating mode.\n");
return false;
}
Con *focus_head_placeholder = NULL;
bool focus_before_parent = true;
if (!set_focus) {
/* Find recursively the ancestor container which is a child of our workspace.
* We need to reuse its focus position later. */
Con *ancestor = con;
while (ancestor->parent->type != CT_WORKSPACE) {
focus_before_parent &= TAILQ_FIRST(&(ancestor->parent->focus_head)) == ancestor;
ancestor = ancestor->parent;
}
/* Consider the part of the focus stack of our current workspace:
* [ ... S_{i-1} S_{i} S_{i+1} ... ]
* Where S_{x} is a container tree and the container 'con' that is being switched to
* floating belongs in S_{i}. The new floating container, 'nc', will have the
* workspace as its parent so it needs to be placed in this stack. If C was focused
* we just need to call con_focus(). Otherwise, nc must be placed before or after S_{i}.
* We should avoid using the S_{i} container for our operations since it might get
* killed if it has no other children. So, the two possible positions are after S_{i-1}
* or before S_{i+1}.
*/
if (focus_before_parent) {
focus_head_placeholder = TAILQ_PREV(ancestor, focus_head, focused);
} else {
focus_head_placeholder = TAILQ_NEXT(ancestor, focused);
}
}
/* 1: detach the container from its parent */
/* TODO: refactor this with tree_close_internal() */
con_detach(con);
con_fix_percent(con->parent);
/* 2: create a new container to render the decoration on, add
* it as a floating window to the workspace */
Con *nc = con_new(NULL, NULL);
/* we need to set the parent afterwards instead of passing it as an
* argument to con_new() because nc would be inserted into the tiling layer
* otherwise. */
Con *ws = con_get_workspace(con);
nc->parent = ws;
nc->type = CT_FLOATING_CON;
nc->layout = L_SPLITH;
/* We insert nc already, even though its rect is not yet calculated. This
* is necessary because otherwise the workspace might be empty (and get
* closed in tree_close_internal()) even though it’s not. */
TAILQ_INSERT_HEAD(&(ws->floating_head), nc, floating_windows);
struct focus_head *fh = &(ws->focus_head);
if (focus_before_parent) {
if (focus_head_placeholder) {
TAILQ_INSERT_AFTER(fh, focus_head_placeholder, nc, focused);
} else {
TAILQ_INSERT_HEAD(fh, nc, focused);
}
} else {
if (focus_head_placeholder) {
TAILQ_INSERT_BEFORE(focus_head_placeholder, nc, focused);
} else {
/* Also used for the set_focus case */
TAILQ_INSERT_TAIL(fh, nc, focused);
}
}
/* check if the parent container is empty and close it if so */
if ((con->parent->type == CT_CON || con->parent->type == CT_FLOATING_CON) &&
con_num_children(con->parent) == 0) {
DLOG("Old container empty after setting this child to floating, closing\n");
Con *parent = con->parent;
/* clear the pointer before calling tree_close_internal in which the memory is freed */
con->parent = NULL;
tree_close_internal(parent, DONT_KILL_WINDOW, false);
}
char *name;
sasprintf(&name, "[i3 con] floatingcon around %p", con);
x_set_name(nc, name);
free(name);
/* find the height for the decorations */
int deco_height = render_deco_height();
DLOG("Original rect: (%d, %d) with %d x %d\n", con->rect.x, con->rect.y, con->rect.width, con->rect.height);
DLOG("Geometry = (%d, %d) with %d x %d\n", con->geometry.x, con->geometry.y, con->geometry.width, con->geometry.height);
nc->rect = con->geometry;
/* If the geometry was not set (split containers), we need to determine a
* sensible one by combining the geometry of all children */
if (rect_equals(nc->rect, (Rect){0, 0, 0, 0})) {
DLOG("Geometry not set, combining children\n");
Con *child;
TAILQ_FOREACH (child, &(con->nodes_head), nodes) {
DLOG("child geometry: %d x %d\n", child->geometry.width, child->geometry.height);
nc->rect.width += child->geometry.width;
nc->rect.height = max(nc->rect.height, child->geometry.height);
}
}
TAILQ_INSERT_TAIL(&(nc->nodes_head), con, nodes);
TAILQ_INSERT_TAIL(&(nc->focus_head), con, focused);
/* 3: attach the child to the new parent container. We need to do this
* because con_border_style_rect() needs to access con->parent. */
con->parent = nc;
con->percent = 1.0;
con->floating = FLOATING_USER_ON;
/* 4: set the border style as specified with new_float */
if (automatic) {
con->border_style = con->max_user_border_style = config.default_floating_border;
}
/* Add pixels for the decoration. */
Rect border_style_rect = con_border_style_rect(con);
nc->rect.height -= border_style_rect.height;
nc->rect.width -= border_style_rect.width;
/* Add some more pixels for the title bar */
if (con_border_style(con) == BS_NORMAL) {
nc->rect.height += deco_height;
}
/* Honor the X11 border */
nc->rect.height += con->border_width * 2;
nc->rect.width += con->border_width * 2;
floating_check_size(nc, false);
/* Some clients (like GIMP’s color picker window) get mapped
* to (0, 0), so we push them to a reasonable position
* (centered over their leader) */
if (nc->rect.x == 0 && nc->rect.y == 0) {
Con *leader;
if (con->window && con->window->leader != XCB_NONE &&
con->window->id != con->window->leader &&
(leader = con_by_window_id(con->window->leader)) != NULL) {
DLOG("Centering above leader\n");
floating_center(nc, leader->rect);
} else {
/* center the window on workspace as fallback */
floating_center(nc, ws->rect);
}
}
/* Sanity check: Are the coordinates on the appropriate output? If not, we
* need to change them */
Output *current_output = get_output_from_rect(nc->rect);
Con *correct_output = con_get_output(ws);
if (!current_output || current_output->con != correct_output) {
DLOG("This floating window is on the wrong output, fixing coordinates (currently (%d, %d))\n",
nc->rect.x, nc->rect.y);
/* If moving from one output to another, keep the relative position
* consistent (e.g. a centered dialog will remain centered). */
if (current_output) {
floating_fix_coordinates(nc, ¤t_output->con->rect, &correct_output->rect);
/* Make sure that the result is in the correct output. */
current_output = get_output_from_rect(nc->rect);
}
if (!current_output || current_output->con != correct_output) {
floating_center(nc, ws->rect);
}
}
DLOG("Floating rect: (%d, %d) with %d x %d\n", nc->rect.x, nc->rect.y, nc->rect.width, nc->rect.height);
/* 5: Subtract the deco_height in order to make the floating window appear
* at precisely the position it specified in its original geometry (which
* is what applications might remember). */
deco_height = (con->border_style == BS_NORMAL ? render_deco_height() : 0);
nc->rect.y -= deco_height;
DLOG("Corrected y = %d (deco_height = %d)\n", nc->rect.y, deco_height);
/* render the cons to get initial window_rect correct */
render_con(nc, true);
if (set_focus)
con_activate(con);
floating_set_hint_atom(nc, true);
ipc_send_window_event("floating", con);
return true;
}
void floating_disable(Con *con) {
if (!con_is_floating(con)) {
LOG("Container isn't floating, not doing anything.\n");
return;
}
Con *ws = con_get_workspace(con);
if (con_is_internal(ws)) {
LOG("Can't disable floating for container in internal workspace.\n");
return;
}
Con *tiling_focused = con_descend_tiling_focused(ws);
if (tiling_focused->type == CT_WORKSPACE) {
Con *parent = con->parent;
con_detach(con);
con->parent = NULL;
tree_close_internal(parent, DONT_KILL_WINDOW, true);
con_attach(con, tiling_focused, false);
con->percent = 0.0;
con_fix_percent(con->parent);
} else {
insert_con_into(con, tiling_focused, AFTER);
}
con->floating = FLOATING_USER_OFF;
floating_set_hint_atom(con, false);
ipc_send_window_event("floating", con);
}
/*
* Toggles floating mode for the given container.
*
* If the automatic flag is set to true, this was an automatic update by a change of the
* window class from the application which can be overwritten by the user.
*
*/
void toggle_floating_mode(Con *con, bool automatic) {
/* forbid the command to toggle floating on a CT_FLOATING_CON */
if (con->type == CT_FLOATING_CON) {
ELOG("Cannot toggle floating mode on con = %p because it is of type CT_FLOATING_CON.\n", con);
return;
}
/* see if the client is already floating */
if (con_is_floating(con)) {
LOG("already floating, re-setting to tiling\n");
floating_disable(con);
return;
}
floating_enable(con, automatic);
}
/*
* Raises the given container in the list of floating containers
*
*/
void floating_raise_con(Con *con) {
DLOG("Raising floating con %p / %s\n", con, con->name);
TAILQ_REMOVE(&(con->parent->floating_head), con, floating_windows);
TAILQ_INSERT_TAIL(&(con->parent->floating_head), con, floating_windows);
}
/*
* Checks if con’s coordinates are within its workspace and re-assigns it to
* the actual workspace if not.
*
*/
bool floating_maybe_reassign_ws(Con *con) {
if (con_is_internal(con_get_workspace(con))) {
DLOG("Con in an internal workspace\n");
return false;
}
Output *output = get_output_from_rect(con->rect);
if (!output) {
ELOG("No output found at destination coordinates?\n");
return false;
}
if (con_get_output(con) == output->con) {
DLOG("still the same ws\n");
return false;
}
DLOG("Need to re-assign!\n");
Con *content = output_get_content(output->con);
Con *ws = TAILQ_FIRST(&(content->focus_head));
DLOG("Moving con %p / %s to workspace %p / %s\n", con, con->name, ws, ws->name);
Con *needs_focus = con_descend_focused(con);
if (!con_inside_focused(needs_focus)) {
needs_focus = NULL;
}
con_move_to_workspace(con, ws, false, true, false);
if (needs_focus) {
workspace_show(ws);
con_activate(needs_focus);
}
return true;
}
/*
* Centers a floating con above the specified rect.
*
*/
void floating_center(Con *con, Rect rect) {
con->rect.x = rect.x + (rect.width / 2) - (con->rect.width / 2);
con->rect.y = rect.y + (rect.height / 2) - (con->rect.height / 2);
}
/*
* Moves the given floating con to the current pointer position.
*
*/
void floating_move_to_pointer(Con *con) {
assert(con->type == CT_FLOATING_CON);
xcb_query_pointer_reply_t *reply = xcb_query_pointer_reply(conn, xcb_query_pointer(conn, root), NULL);
if (reply == NULL) {
ELOG("could not query pointer position, not moving this container\n");
return;
}
Output *output = get_output_containing(reply->root_x, reply->root_y);
if (output == NULL) {
ELOG("The pointer is not on any output, cannot move the container here.\n");
return;
}
/* Determine where to put the window. */
int32_t x = reply->root_x - con->rect.width / 2;
int32_t y = reply->root_y - con->rect.height / 2;
FREE(reply);
/* Correct target coordinates to be in-bounds. */
x = MAX(x, (int32_t)output->rect.x);
y = MAX(y, (int32_t)output->rect.y);
if (x + con->rect.width > output->rect.x + output->rect.width)
x = output->rect.x + output->rect.width - con->rect.width;
if (y + con->rect.height > output->rect.y + output->rect.height)
y = output->rect.y + output->rect.height - con->rect.height;
/* Update container's coordinates to position it correctly. */
floating_reposition(con, (Rect){x, y, con->rect.width, con->rect.height});
}
DRAGGING_CB(drag_window_callback) {
/* Reposition the client correctly while moving */
con->rect.x = old_rect->x + (new_x - event->root_x);
con->rect.y = old_rect->y + (new_y - event->root_y);
render_con(con, true);
x_push_node(con);
xcb_flush(conn);
/* Check if we cross workspace boundaries while moving */
if (!floating_maybe_reassign_ws(con))
return;
/* Ensure not to warp the pointer while dragging */
x_set_warp_to(NULL);
tree_render();
}
/*
* Called when the user clicked on the titlebar of a floating window.
* Calls the drag_pointer function with the drag_window callback
*
*/
void floating_drag_window(Con *con, const xcb_button_press_event_t *event, bool use_threshold) {
DLOG("floating_drag_window\n");
/* Push changes before dragging, so that the window gets raised now and not
* after the user releases the mouse button */
tree_render();
/* Store the initial rect in case of user revert/cancel */
Rect initial_rect = con->rect;
/* Drag the window */
drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, XCURSOR_CURSOR_MOVE, use_threshold, drag_window_callback, NULL);
if (!con_exists(con)) {
DLOG("The container has been closed in the meantime.\n");
return;
}
/* If the user cancelled, undo the changes. */
if (drag_result == DRAG_REVERT) {
floating_reposition(con, initial_rect);
return;
}
/* If this is a scratchpad window, don't auto center it from now on. */
if (con->scratchpad_state == SCRATCHPAD_FRESH)
con->scratchpad_state = SCRATCHPAD_CHANGED;
tree_render();
}
/*
* This is an ugly data structure which we need because there is no standard
* way of having nested functions (only available as a gcc extension at the
* moment, clang doesn’t support it) or blocks (only available as a clang
* extension and only on Mac OS X systems at the moment).
*
*/
struct resize_window_callback_params {
const border_t corner;
const bool proportional;
};
DRAGGING_CB(resize_window_callback) {
const struct resize_window_callback_params *params = extra;
border_t corner = params->corner;
int32_t dest_x = con->rect.x;
int32_t dest_y = con->rect.y;
uint32_t dest_width;
uint32_t dest_height;
double ratio = (double)old_rect->width / old_rect->height;
/* First guess: We resize by exactly the amount the mouse moved,
* taking into account in which corner the client was grabbed */
if (corner & BORDER_LEFT)
dest_width = old_rect->width - (new_x - event->root_x);
else
dest_width = old_rect->width + (new_x - event->root_x);
if (corner & BORDER_TOP)
dest_height = old_rect->height - (new_y - event->root_y);
else
dest_height = old_rect->height + (new_y - event->root_y);
/* User wants to keep proportions, so we may have to adjust our values */
if (params->proportional) {
dest_width = max(dest_width, (int)(dest_height * ratio));
dest_height = max(dest_height, (int)(dest_width / ratio));
}
con->rect = (Rect){dest_x, dest_y, dest_width, dest_height};
/* Obey window size */
floating_check_size(con, false);
/* If not the lower right corner is grabbed, we must also reposition
* the client by exactly the amount we resized it */
if (corner & BORDER_LEFT)
dest_x = old_rect->x + (old_rect->width - con->rect.width);
if (corner & BORDER_TOP)
dest_y = old_rect->y + (old_rect->height - con->rect.height);
con->rect.x = dest_x;
con->rect.y = dest_y;
render_con(con, true);
x_push_changes(croot);
}
/*
* Called when the user clicked on a floating window while holding the
* floating_modifier and the right mouse button.
* Calls the drag_pointer function with the resize_window callback
*
*/
void floating_resize_window(Con *con, const bool proportional,
const xcb_button_press_event_t *event) {
DLOG("floating_resize_window\n");
/* Push changes before resizing, so that the window gets raised now and not
* after the user releases the mouse button */
tree_render();
/* corner saves the nearest corner to the original click. It contains
* a bitmask of the nearest borders (BORDER_LEFT, BORDER_RIGHT, …) */
border_t corner = 0;
if (event->event_x <= (int16_t)(con->rect.width / 2))
corner |= BORDER_LEFT;
else
corner |= BORDER_RIGHT;
int cursor = 0;
if (event->event_y <= (int16_t)(con->rect.height / 2)) {
corner |= BORDER_TOP;
cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_TOP_LEFT_CORNER : XCURSOR_CURSOR_TOP_RIGHT_CORNER;
} else {
corner |= BORDER_BOTTOM;
cursor = (corner & BORDER_LEFT) ? XCURSOR_CURSOR_BOTTOM_LEFT_CORNER : XCURSOR_CURSOR_BOTTOM_RIGHT_CORNER;
}
struct resize_window_callback_params params = {corner, proportional};
/* get the initial rect in case of revert/cancel */
Rect initial_rect = con->rect;
drag_result_t drag_result = drag_pointer(con, event, XCB_NONE, cursor, false, resize_window_callback, ¶ms);
if (!con_exists(con)) {
DLOG("The container has been closed in the meantime.\n");
return;
}
/* If the user cancels, undo the resize */
if (drag_result == DRAG_REVERT)
floating_reposition(con, initial_rect);
/* If this is a scratchpad window, don't auto center it from now on. */
if (con->scratchpad_state == SCRATCHPAD_FRESH)
con->scratchpad_state = SCRATCHPAD_CHANGED;
}
/*
* Repositions the CT_FLOATING_CON to have the coordinates specified by
* newrect, but only if the coordinates are not out-of-bounds. Also reassigns
* the floating con to a different workspace if this move was across different
* outputs.
*
*/
bool floating_reposition(Con *con, Rect newrect) {
/* Sanity check: Are the new coordinates on any output? If not, we
* ignore that request. */
if (!output_containing_rect(newrect)) {
ELOG("No output found at destination coordinates. Not repositioning.\n");
return false;
}
con->rect = newrect;
floating_maybe_reassign_ws(con);
/* If this is a scratchpad window, don't auto center it from now on. */
if (con->scratchpad_state == SCRATCHPAD_FRESH)
con->scratchpad_state = SCRATCHPAD_CHANGED;
tree_render();
return true;
}
/*
* Sets size of the CT_FLOATING_CON to specified dimensions. Might limit the
* actual size with regard to size constraints taken from user settings.
* Additionally, the dimensions may be upscaled until they're divisible by the
* window's size hints.
*
*/
void floating_resize(Con *floating_con, uint32_t x, uint32_t y) {
DLOG("floating resize to %dx%d px\n", x, y);
Rect *rect = &floating_con->rect;
Con *focused_con = con_descend_focused(floating_con);
if (focused_con->window == NULL) {
DLOG("No window is focused. Not resizing.\n");
return;
}
int wi = focused_con->window->width_increment;
int hi = focused_con->window->height_increment;
bool prefer_height = (rect->width == x);
rect->width = x;
rect->height = y;
if (wi)
rect->width += (wi - 1 - rect->width) % wi;
if (hi)
rect->height += (hi - 1 - rect->height) % hi;
floating_check_size(floating_con, prefer_height);
/* If this is a scratchpad window, don't auto center it from now on. */
if (floating_con->scratchpad_state == SCRATCHPAD_FRESH)
floating_con->scratchpad_state = SCRATCHPAD_CHANGED;
}
/*
* Fixes the coordinates of the floating window whenever the window gets
* reassigned to a different output (or when the output’s rect changes).
*
*/
void floating_fix_coordinates(Con *con, Rect *old_rect, Rect *new_rect) {
DLOG("Fixing coordinates of floating window %p (rect (%d, %d), %d x %d)\n",
con, con->rect.x, con->rect.y, con->rect.width, con->rect.height);
DLOG("old_rect = (%d, %d), %d x %d\n",
old_rect->x, old_rect->y, old_rect->width, old_rect->height);
DLOG("new_rect = (%d, %d), %d x %d\n",
new_rect->x, new_rect->y, new_rect->width, new_rect->height);
/* First we get the x/y coordinates relative to the x/y coordinates
* of the output on which the window is on */
int32_t rel_x = con->rect.x - old_rect->x + (int32_t)(con->rect.width / 2);
int32_t rel_y = con->rect.y - old_rect->y + (int32_t)(con->rect.height / 2);
/* Then we calculate a fraction, for example 0.63 for a window
* which is at y = 1212 of a 1920 px high output */
DLOG("rel_x = %d, rel_y = %d, fraction_x = %f, fraction_y = %f, output->w = %d, output->h = %d\n",
rel_x, rel_y, (double)rel_x / old_rect->width, (double)rel_y / old_rect->height,
old_rect->width, old_rect->height);
/* Here we have to multiply at first. Or we will lose precision when not compiled with -msse2 */
con->rect.x = (int32_t)new_rect->x + (double)(rel_x * (int32_t)new_rect->width) / (int32_t)old_rect->width - (int32_t)(con->rect.width / 2);
con->rect.y = (int32_t)new_rect->y + (double)(rel_y * (int32_t)new_rect->height) / (int32_t)old_rect->height - (int32_t)(con->rect.height / 2);
DLOG("Resulting coordinates: x = %d, y = %d\n", con->rect.x, con->rect.y);
}