+/* Window management data */
+static list_t *wm_cols;
+static win_t *wm_root;
+
+/* Helper functions */
+static void set_mode(drag_t drag, win_t *win, ptr_t ptr)
+{
+ printf("set_mode: %d - %p@%d,%d\n",
+ drag, win, ptr.rx, ptr.ry);
+ move_mode = drag;
+ if (drag == move || drag == resize) {
+ move_win = win;
+ move_prev = ptr;
+ }
+}
+
+static void print_txt(list_t *cols)
+{
+ for (list_t *cnode = cols; cnode; cnode = cnode->next) {
+ col_t *col = cnode->data;
+ printf("col:\t%p - %dpx @ %d\n", col, col->width, col->group);
+ for (list_t *wnode = col->rows; wnode; wnode = wnode->next) {
+ win_t *win = wnode->data;
+ printf(" win:\t%p - %dpx\n", win, win->h);
+ }
+ }
+}
+
+static void arrange(list_t *cols)
+{
+ int x=0, y=0; // Current window top-left position
+ int tx=0, ty=0; // Total x/y size
+ int mx=0, my=0; // Maximum x/y size (screen size)
+
+ mx = wm_root->w;
+ my = wm_root->h;
+
+ /* Scale horizontally */
+ for (list_t *lx = cols; lx; lx = lx->next)
+ tx += ((col_t*)lx->data)->width;
+ for (list_t *lx = cols; lx; lx = lx->next)
+ ((col_t*)lx->data)->width *= (float)mx / tx;
+
+ /* Scale each column vertically */
+ for (list_t *lx = cols; lx; lx = lx->next) {
+ col_t *col = lx->data;
+ ty = 0;
+ for (list_t *ly = col->rows; ly; ly = ly->next)
+ ty += ((win_t*)ly->data)->h;
+ y = 0;
+ for (list_t *ly = col->rows; ly; ly = ly->next) {
+ win_t *win = ly->data;
+ sys_move(win, x, y, col->width,
+ win->h * ((float)my / ty));
+ y += win->h;
+ }
+ x += col->width;
+ }
+}
+
+static void shift_window(win_t *win, int col, int row)
+{
+ printf("shift_window: %p - %+d,%+d\n", win, col, row);
+ print_txt(wm_cols);
+ printf("shift_window: >>>\n");
+ if (row != 0) {
+ list_t *src = win->wm->row, *dst = NULL;
+ if (row < 0) dst = src->prev;
+ if (row > 0) dst = src->next;
+ if (src && dst) {
+ printf("swap: %p <-> %p\n", src->data, dst->data);
+ src->data = dst->data;
+ dst->data = win;
+ ((win_t*)src->data)->wm->row = src;
+ ((win_t*)dst->data)->wm->row = dst;
+ arrange(wm_cols);
+ }
+ } else {
+ int onlyrow = !win->wm->row->prev && !win->wm->row->next;
+ list_t *src = win->wm->col, *dst = NULL;
+ if (col < 0) {
+ if (!src->prev && !onlyrow)
+ wm_cols = list_insert(wm_cols, new0(col_t));
+ dst = src->prev;
+ }
+ if (col > 0) {
+ if (!src->next && !onlyrow)
+ wm_cols = list_append(wm_cols, new0(col_t));
+ dst = src->next;
+ }
+ if (src && dst) {
+ col_t *scol = src->data;
+ col_t *dcol = dst->data;
+ scol->rows = list_remove(scol->rows, win->wm->row);
+ dcol->rows = list_insert(dcol->rows, win);
+ win->wm->row = dcol->rows;
+ win->wm->col = dst;
+ if (onlyrow) // delete column
+ wm_cols = list_remove(wm_cols, src);
+ if (dcol->width == 0) // new column
+ dcol->width = wm_root->w / (list_length(wm_cols)-1);
+ else
+ win->h = wm_root->h / (list_length(dcol->rows)-1);
+ arrange(wm_cols);
+ }
+ }
+ print_txt(wm_cols);
+}