/* * vim:ts=8:expandtab * * i3 - an improved dynamic tiling window manager * * © 2009 Michael Stapelberg and contributors * * See file LICENSE for license information. * * layout.c: Functions handling layout/drawing of window decorations * */ #include #include #include #include #include "font.h" #include "i3.h" #include "xcb.h" #include "table.h" #include "util.h" #include "xinerama.h" /* * For resizing containers (= cells), we need to know the space which is unoccupied by "default" * windows. The resized containers will be rendered relatively to this space, meaning that newly * created columns/rows after a container was resized will start with their normal size. * */ Rect get_unoccupied_space(Workspace *workspace) { printf("getting unoccupied space\n"); float default_factor_w = ((float)workspace->rect.width / (float)workspace->cols) / (float)workspace->rect.width; float default_factor_h = (workspace->rect.height / workspace->rows) / workspace->rect.height; Rect result = {0, 0, workspace->rect.width, workspace->rect.height}; printf("default factor is %f and %f\n", default_factor_w, default_factor_h); printf("start w = %d, h = %d\n", result.width, result.height); /* TODO: colspan/rowspan*/ for (int cols = 0; cols < workspace->cols; cols++) for (int rows = 0; rows < workspace->rows; rows++) { printf("oh hai. wf[%d][%d] = %f\n", cols, rows, workspace->table[cols][rows]->width_factor); if (workspace->table[cols][rows]->width_factor == 0) result.width -= workspace->rect.width * default_factor_w; if (workspace->table[cols][rows]->height_factor == 0) result.height -= workspace->rect.height * default_factor_h; } /* If every container is using the default factor, we have the whole space available */ if (result.width == 0) result.width = workspace->rect.width; if (result.height == 0) result.height = workspace->rect.height; printf("unoccupied x = %d, unoccupied y = %d\n", result.width, result.height); return result; } /* * (Re-)draws window decorations for a given Client * */ void decorate_window(xcb_connection_t *conn, Client *client) { uint32_t mask = 0; uint32_t values[3]; i3Font *font = load_font(conn, pattern); uint32_t background_color, text_color, border_color; if (client->container->currently_focused == client) { background_color = get_colorpixel(conn, client->frame, "#285577"); text_color = get_colorpixel(conn, client->frame, "#ffffff"); border_color = get_colorpixel(conn, client->frame, "#4c7899"); } else { background_color = get_colorpixel(conn, client->frame, "#222222"); text_color = get_colorpixel(conn, client->frame, "#888888"); border_color = get_colorpixel(conn, client->frame, "#333333"); } /* Our plan is the following: - Draw a rect around the whole client in background_color - Draw two lines in a lighter color - Draw the window’s title Note that xcb_image_text apparently adds 1xp border around the font? Can anyone confirm this? */ /* Draw a green rectangle around the window */ mask = XCB_GC_FOREGROUND; values[0] = background_color; xcb_change_gc(conn, client->titlegc, mask, values); xcb_rectangle_t rect = {0, 0, client->rect.width, client->rect.height}; xcb_poly_fill_rectangle(conn, client->frame, client->titlegc, 1, &rect); /* Draw the lines */ /* TODO: this needs to be more beautiful somewhen. maybe stdarg + change_gc(gc, ...) ? */ #define DRAW_LINE(colorpixel, x, y, to_x, to_y) { \ uint32_t draw_values[1]; \ draw_values[0] = colorpixel; \ xcb_change_gc(conn, client->titlegc, XCB_GC_FOREGROUND, draw_values); \ xcb_point_t points[] = {{x, y}, {to_x, to_y}}; \ xcb_poly_line(conn, XCB_COORD_MODE_ORIGIN, client->frame, client->titlegc, 2, points); \ } DRAW_LINE(border_color, 2, 0, client->rect.width, 0); DRAW_LINE(border_color, 2, font->height + 3, 2 + client->rect.width, font->height + 3); /* Draw the font */ mask = XCB_GC_FOREGROUND | XCB_GC_BACKGROUND | XCB_GC_FONT; values[0] = text_color; values[1] = background_color; values[2] = font->id; xcb_change_gc(conn, client->titlegc, mask, values); /* TODO: utf8? */ char *label; asprintf(&label, "(%08x) %.*s", client->frame, client->name_len, client->name); xcb_void_cookie_t text_cookie = xcb_image_text_8_checked(conn, strlen(label), client->frame, client->titlegc, 3 /* X */, font->height /* Y = baseline of font */, label); check_error(conn, text_cookie, "Could not draw client's title"); free(label); } static void render_container(xcb_connection_t *connection, Container *container) { Client *client; i3Font *font = load_font(connection, pattern); if (container->mode == MODE_DEFAULT) { int num_clients = 0; CIRCLEQ_FOREACH(client, &(container->clients), clients) num_clients++; printf("got %d clients in this default container.\n", num_clients); int current_client = 0; CIRCLEQ_FOREACH(client, &(container->clients), clients) { /* TODO: at the moment, every column/row is screen / num_cols. This * needs to be changed to "percentage of the screen" by * default and adjustable by the user if necessary. */ /* Check if we changed client->x or client->y by updating it… * Note the bitwise OR instead of logical OR to force evaluation of both statements */ if (client->force_reconfigure | (client->rect.x != (client->rect.x = container->x)) | (client->rect.y != (client->rect.y = container->y + (container->height / num_clients) * current_client))) { printf("frame needs to be pushed to %dx%d\n", client->rect.x, client->rect.y); /* Note: We can use a pointer to client->x like an array of uint32_ts because it is followed by client->y by definition */ xcb_configure_window(connection, client->frame, XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y, &(client->rect.x)); } /* TODO: vertical default layout */ if (client->force_reconfigure | (client->rect.width != (client->rect.width = container->width)) | (client->rect.height != (client->rect.height = container->height / num_clients))) { printf("resizing client to %d x %d\n", client->rect.width, client->rect.height); xcb_configure_window(connection, client->frame, XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT, &(client->rect.width)); /* Adjust the position of the child inside its frame. * The coordinates of the child are relative to its frame, we * add a border of 2 pixel to each value */ uint32_t mask = XCB_CONFIG_WINDOW_X | XCB_CONFIG_WINDOW_Y | XCB_CONFIG_WINDOW_WIDTH | XCB_CONFIG_WINDOW_HEIGHT; uint32_t values[4] = {2, /* x */ font->height + 2 + 2, /* y */ client->rect.width - (2 + 2), /* width */ client->rect.height - ((font->height + 2 + 2) + 2)}; /* height */ printf("child will be at %dx%d with size %dx%d\n", values[0], values[1], values[2], values[3]); xcb_configure_window(connection, client->child, mask, values); } if (client->force_reconfigure) client->force_reconfigure = false; current_client++; } } else { /* TODO: Implement stacking */ } } void render_layout(xcb_connection_t *connection) { i3Screen *screen; TAILQ_FOREACH(screen, &virtual_screens, screens) { /* r_ws (rendering workspace) is just a shortcut to the Workspace being currently rendered */ Workspace *r_ws = &(workspaces[screen->current_workspace]); printf("Rendering screen %d\n", screen->num); if (r_ws->fullscreen_client != NULL) /* This is easy: A client has entered fullscreen mode, so we don’t render at all */ continue; int width = r_ws->rect.width; int height = r_ws->rect.height; int x = r_ws->rect.x; int y = r_ws->rect.y; printf("got %d rows and %d cols\n", r_ws->rows, r_ws->cols); printf("each of them therefore is %d px width and %d px height\n", width / r_ws->cols, height / r_ws->rows); Rect space = get_unoccupied_space(r_ws); printf("got %d / %d unoc space\n", space.width, space.height); /* Go through the whole table and render what’s necessary */ for (int cols = 0; cols < r_ws->cols; cols++) for (int rows = 0; rows < r_ws->rows; rows++) { Container *container = r_ws->table[cols][rows]; printf("container has %d colspan, %d rowspan\n", container->colspan, container->rowspan); printf("container at %d, %d\n", x, y); /* Update position of the container */ container->row = rows; container->col = cols; container->x = x; container->y = y; if (container->width_factor == 0) container->width = (width / r_ws->cols) * container->colspan; else container->width = space.width * container->width_factor; container->height = (height / r_ws->rows) * container->rowspan; /* Render it */ render_container(connection, container); x += container->width; } } xcb_flush(connection); }