/* * vim:ts=8:expandtab * * i3 - an improved dynamic tiling window manager * * © 2009 Michael Stapelberg and contributors * * See file LICENSE for license information. * * This file contains the functions for resizing table columns/rows because * it’s actually lots of work, compared to the other handlers. * */ #include #include #include #include #include "i3.h" #include "data.h" #include "resize.h" #include "util.h" #include "xcb.h" #include "debug.h" #include "layout.h" #include "xinerama.h" #include "config.h" /* * Renders the resize window between the first/second container and resizes * the table column/row. * */ int resize_graphical_handler(xcb_connection_t *conn, Workspace *ws, int first, int second, resize_orientation_t orientation, xcb_button_press_event_t *event) { int new_position; xcb_window_t root = xcb_setup_roots_iterator(xcb_get_setup(conn)).data->root; xcb_screen_t *root_screen = xcb_setup_roots_iterator(xcb_get_setup(conn)).data; i3Screen *screen = get_screen_containing(event->root_x, event->root_y); if (screen == NULL) { LOG("BUG: No screen found at this position (%d, %d)\n", event->root_x, event->root_y); return 1; } LOG("Screen dimensions: (%d, %d) %d x %d\n", screen->rect.x, screen->rect.y, screen->rect.width, screen->rect.height); /* FIXME: horizontal resizing causes empty spaces to exist */ if (orientation == O_HORIZONTAL) { LOG("Sorry, horizontal resizing is not yet activated due to creating layout bugs." "If you are brave, enable the code for yourself and try fixing it.\n"); return 1; } 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. */ Rect grabrect = {0, 0, root_screen->width_in_pixels, root_screen->height_in_pixels}; xcb_window_t grabwin = create_window(conn, grabrect, XCB_WINDOW_CLASS_INPUT_ONLY, -1, mask, values); Rect helprect; if (orientation == O_VERTICAL) { helprect.x = event->root_x; helprect.y = screen->rect.y; helprect.width = 2; helprect.height = screen->rect.height; new_position = event->root_x; } else { helprect.x = 0; helprect.y = event->root_y; helprect.width = root_screen->width_in_pixels; helprect.height = 2; new_position = event->root_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_WINDOW_CLASS_INPUT_OUTPUT, (orientation == O_VERTICAL ? XCB_CURSOR_SB_V_DOUBLE_ARROW : XCB_CURSOR_SB_H_DOUBLE_ARROW), mask, values); xcb_circulate_window(conn, XCB_CIRCULATE_RAISE_LOWEST, helpwin); xcb_grab_pointer(conn, false, root, XCB_EVENT_MASK_BUTTON_RELEASE | XCB_EVENT_MASK_POINTER_MOTION, XCB_GRAB_MODE_ASYNC, XCB_GRAB_MODE_ASYNC, grabwin, XCB_NONE, XCB_CURRENT_TIME); xcb_flush(conn); xcb_generic_event_t *inside_event; /* I’ve always wanted to have my own eventhandler… */ while ((inside_event = xcb_wait_for_event(conn))) { /* Same as get_event_handler in xcb */ int nr = inside_event->response_type; if (nr == 0) { /* An error occured */ handle_event(NULL, conn, inside_event); free(inside_event); continue; } assert(nr < 256); nr &= XCB_EVENT_RESPONSE_TYPE_MASK; assert(nr >= 2); /* Check if we need to escape this loop */ if (nr == XCB_BUTTON_RELEASE) break; switch (nr) { case XCB_MOTION_NOTIFY: { xcb_motion_notify_event_t *motion_event = (xcb_motion_notify_event_t*)inside_event; if (orientation == O_VERTICAL) { if (motion_event->root_x < (screen->rect.x + screen->rect.width) && motion_event->root_x > screen->rect.x) { values[0] = new_position = ((xcb_motion_notify_event_t*)inside_event)->root_x; xcb_configure_window(conn, helpwin, XCB_CONFIG_WINDOW_X, values); } else { LOG("Ignoring new position\n"); } } else { values[0] = new_position = ((xcb_motion_notify_event_t*)inside_event)->root_y; xcb_configure_window(conn, helpwin, XCB_CONFIG_WINDOW_Y, values); } xcb_flush(conn); break; } default: LOG("Passing to original handler\n"); /* Use original handler */ xcb_event_handle(&evenths, inside_event); break; } free(inside_event); } xcb_ungrab_pointer(conn, XCB_CURRENT_TIME); xcb_destroy_window(conn, helpwin); xcb_destroy_window(conn, grabwin); xcb_flush(conn); if (orientation == O_VERTICAL) { LOG("Resize was from X = %d to X = %d\n", event->root_x, new_position); if (event->root_x == new_position) { LOG("Nothing changed, not updating anything\n"); return 1; } int default_width = ws->rect.width / ws->cols; int old_unoccupied_x = get_unoccupied_x(ws); /* We pre-calculate the unoccupied space to see if we need to adapt sizes before * doing the resize */ int new_unoccupied_x = old_unoccupied_x; if (old_unoccupied_x == 0) old_unoccupied_x = ws->rect.width; if (ws->width_factor[first] == 0) new_unoccupied_x += default_width; if (ws->width_factor[second] == 0) new_unoccupied_x += default_width; LOG("\n\n\n"); LOG("old = %d, new = %d\n", old_unoccupied_x, new_unoccupied_x); /* If the space used for customly resized columns has changed we need to adapt the * other customly resized columns, if any */ if (new_unoccupied_x != old_unoccupied_x) for (int col = 0; col < ws->cols; col++) { if (ws->width_factor[col] == 0) continue; LOG("Updating other column (%d) (current width_factor = %f)\n", col, ws->width_factor[col]); ws->width_factor[col] = (ws->width_factor[col] * old_unoccupied_x) / new_unoccupied_x; LOG("to %f\n", ws->width_factor[col]); } LOG("old_unoccupied_x = %d\n", old_unoccupied_x); LOG("Updating first (before = %f)\n", ws->width_factor[first]); /* Convert 0 (for default width_factor) to actual numbers */ if (ws->width_factor[first] == 0) ws->width_factor[first] = ((float)ws->rect.width / ws->cols) / new_unoccupied_x; LOG("middle = %f\n", ws->width_factor[first]); int old_width = ws->width_factor[first] * old_unoccupied_x; LOG("first->width = %d, new_position = %d, event->root_x = %d\n", old_width, new_position, event->root_x); ws->width_factor[first] *= (float)(old_width + (new_position - event->root_x)) / old_width; LOG("-> %f\n", ws->width_factor[first]); LOG("Updating second (before = %f)\n", ws->width_factor[second]); if (ws->width_factor[second] == 0) ws->width_factor[second] = ((float)ws->rect.width / ws->cols) / new_unoccupied_x; LOG("middle = %f\n", ws->width_factor[second]); old_width = ws->width_factor[second] * old_unoccupied_x; LOG("second->width = %d, new_position = %d, event->root_x = %d\n", old_width, new_position, event->root_x); ws->width_factor[second] *= (float)(old_width - (new_position - event->root_x)) / old_width; LOG("-> %f\n", ws->width_factor[second]); LOG("new unoccupied_x = %d\n", get_unoccupied_x(ws)); LOG("\n\n\n"); } else { #if 0 LOG("Resize was from Y = %d to Y = %d\n", event->root_y, new_position); if (event->root_y == new_position) { LOG("Nothing changed, not updating anything\n"); return 1; } /* Convert 0 (for default height_factor) to actual numbers */ if (first->height_factor == 0) first->height_factor = ((float)ws->rect.height / ws->rows) / ws->rect.height; if (second->height_factor == 0) second->height_factor = ((float)ws->rect.height / ws->rows) / ws->rect.height; first->height_factor *= (float)(first->height + (new_position - event->root_y)) / first->height; second->height_factor *= (float)(second->height - (new_position - event->root_y)) / second->height; #endif } render_layout(conn); return 1; }