/* * vim:ts=8:expandtab * * i3 - an improved dynamic tiling window manager * * © 2009-2010 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 "randr.h" #include "config.h" #include "floating.h" #include "workspace.h" #include "log.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; struct xoutput *screen = get_output_containing(event->root_x, event->root_y); if (screen == NULL) { ELOG("BUG: No screen found at this position (%d, %d)\n", event->root_x, event->root_y); return 1; } /* We cannot use the X root window's width_in_pixels or height_in_pixels * attributes here since they are not updated when you configure new * screens during runtime. Instead, we just use the most right and most * bottom Xinerama screen and use their position + width/height to get * the area of pixels currently in use */ struct xoutput *most_right = get_output_most(D_RIGHT, screen), *most_bottom = get_output_most(D_DOWN, screen); DLOG("event->event_x = %d, event->root_x = %d\n", event->event_x, event->root_x); DLOG("Screen dimensions: (%d, %d) %d x %d\n", screen->rect.x, screen->rect.y, screen->rect.width, screen->rect.height); 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, most_right->rect.x + most_right->rect.width, most_bottom->rect.x + most_bottom->rect.height}; xcb_window_t grabwin = create_window(conn, grabrect, XCB_WINDOW_CLASS_INPUT_ONLY, -1, true, 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 = screen->rect.x; helprect.y = event->root_y; helprect.width = screen->rect.width; 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_H_DOUBLE_ARROW : XCB_CURSOR_SB_V_DOUBLE_ARROW), true, mask, values); xcb_circulate_window(conn, XCB_CIRCULATE_RAISE_LOWEST, helpwin); xcb_flush(conn); void resize_callback(Rect *old_rect, uint32_t new_x, uint32_t new_y) { DLOG("new x = %d, y = %d\n", new_x, new_y); if (orientation == O_VERTICAL) { /* Check if the new coordinates are within screen boundaries */ if (new_x > (screen->rect.x + screen->rect.width - 25) || new_x < (screen->rect.x + 25)) return; values[0] = new_position = new_x; xcb_configure_window(conn, helpwin, XCB_CONFIG_WINDOW_X, values); } else { if (new_y > (screen->rect.y + screen->rect.height - 25) || new_y < (screen->rect.y + 25)) return; values[0] = new_position = new_y; xcb_configure_window(conn, helpwin, XCB_CONFIG_WINDOW_Y, values); } xcb_flush(conn); } drag_pointer(conn, NULL, event, grabwin, BORDER_TOP, resize_callback); xcb_destroy_window(conn, helpwin); xcb_destroy_window(conn, grabwin); xcb_flush(conn); int pixels; if (orientation == O_VERTICAL) pixels = (new_position - event->root_x); else pixels = (new_position - event->root_y); resize_container(conn, ws, first, second, orientation, pixels); return 1; } /* * Resizes a column/row by the given amount of pixels. Called by * resize_graphical_handler (the user clicked) or parse_resize_command (the * user issued the command) * */ void resize_container(xcb_connection_t *conn, Workspace *ws, int first, int second, resize_orientation_t orientation, int pixels) { /* TODO: refactor this, both blocks are very identical */ if (orientation == O_VERTICAL) { 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; DLOG("\n\n\n"); DLOG("old = %d, new = %d\n", old_unoccupied_x, new_unoccupied_x); int cols_without_wf = 0; int old_width, old_second_width; for (int col = 0; col < ws->cols; col++) if (ws->width_factor[col] == 0) cols_without_wf++; DLOG("old_unoccupied_x = %d\n", old_unoccupied_x); DLOG("Updating first (before = %f)\n", ws->width_factor[first]); /* Convert 0 (for default width_factor) to actual numbers */ if (ws->width_factor[first] == 0) old_width = (old_unoccupied_x / max(cols_without_wf, 1)); else old_width = ws->width_factor[first] * old_unoccupied_x; DLOG("second (before = %f)\n", ws->width_factor[second]); if (ws->width_factor[second] == 0) old_second_width = (old_unoccupied_x / max(cols_without_wf, 1)); else old_second_width = ws->width_factor[second] * old_unoccupied_x; DLOG("middle = %f\n", ws->width_factor[first]); /* 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; DLOG("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; DLOG("to %f\n", ws->width_factor[col]); } DLOG("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; DLOG("first->width = %d, pixels = %d\n", old_width, pixels); ws->width_factor[first] *= (float)(old_width + pixels) / old_width; DLOG("-> %f\n", ws->width_factor[first]); DLOG("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; DLOG("middle = %f\n", ws->width_factor[second]); DLOG("second->width = %d, pixels = %d\n", old_second_width, pixels); ws->width_factor[second] *= (float)(old_second_width - pixels) / old_second_width; DLOG("-> %f\n", ws->width_factor[second]); DLOG("new unoccupied_x = %d\n", get_unoccupied_x(ws)); DLOG("\n\n\n"); } else { int ws_height = workspace_height(ws); int default_height = ws_height / ws->rows; int old_unoccupied_y = get_unoccupied_y(ws); /* We pre-calculate the unoccupied space to see if we need to adapt sizes before * doing the resize */ int new_unoccupied_y = old_unoccupied_y; if (old_unoccupied_y == 0) old_unoccupied_y = ws_height; if (ws->height_factor[first] == 0) new_unoccupied_y += default_height; if (ws->height_factor[second] == 0) new_unoccupied_y += default_height; int cols_without_hf = 0; int old_height, old_second_height; for (int row = 0; row < ws->rows; row++) if (ws->height_factor[row] == 0) cols_without_hf++; DLOG("old_unoccupied_y = %d\n", old_unoccupied_y); DLOG("Updating first (before = %f)\n", ws->height_factor[first]); /* Convert 0 (for default width_factor) to actual numbers */ if (ws->height_factor[first] == 0) old_height = (old_unoccupied_y / max(cols_without_hf, 1)); else old_height = ws->height_factor[first] * old_unoccupied_y; DLOG("second (before = %f)\n", ws->height_factor[second]); if (ws->height_factor[second] == 0) old_second_height = (old_unoccupied_y / max(cols_without_hf, 1)); else old_second_height = ws->height_factor[second] * old_unoccupied_y; DLOG("middle = %f\n", ws->height_factor[first]); DLOG("\n\n\n"); DLOG("old = %d, new = %d\n", old_unoccupied_y, new_unoccupied_y); /* If the space used for customly resized columns has changed we need to adapt the * other customly resized columns, if any */ if (new_unoccupied_y != old_unoccupied_y) for (int row = 0; row < ws->rows; row++) { if (ws->height_factor[row] == 0) continue; DLOG("Updating other column (%d) (current width_factor = %f)\n", row, ws->height_factor[row]); ws->height_factor[row] = (ws->height_factor[row] * old_unoccupied_y) / new_unoccupied_y; DLOG("to %f\n", ws->height_factor[row]); } DLOG("Updating first (before = %f)\n", ws->height_factor[first]); /* Convert 0 (for default width_factor) to actual numbers */ if (ws->height_factor[first] == 0) ws->height_factor[first] = ((float)ws_height / ws->rows) / new_unoccupied_y; DLOG("first->width = %d, pixels = %d\n", old_height, pixels); ws->height_factor[first] *= (float)(old_height + pixels) / old_height; DLOG("-> %f\n", ws->height_factor[first]); DLOG("Updating second (before = %f)\n", ws->height_factor[second]); if (ws->height_factor[second] == 0) ws->height_factor[second] = ((float)ws_height / ws->rows) / new_unoccupied_y; DLOG("middle = %f\n", ws->height_factor[second]); DLOG("second->width = %d, pixels = %d\n", old_second_height, pixels); ws->height_factor[second] *= (float)(old_second_height - pixels) / old_second_height; DLOG("-> %f\n", ws->height_factor[second]); DLOG("new unoccupied_y = %d\n", get_unoccupied_y(ws)); DLOG("\n\n\n"); } render_layout(conn); }