+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+#include <xcb/xcb.h>
+#include <xcb/xcb_event.h>
+#include "settings.h"
+#include "helpers.h"
+#include "utils.h"
+#include "types.h"
+#include "bspwm.h"
#include "tree.h"
-Node *first_extrema(Node *n)
+bool is_leaf(node_t *n)
+{
+ return (n != NULL && n->first_child == NULL && n->second_child == NULL);
+}
+
+bool is_first_child(node_t *n)
+{
+ return (n != NULL && n->parent != NULL && n->parent->first_child == n);
+}
+
+bool is_second_child(node_t *n)
+{
+ return (n != NULL && n->parent != NULL && n->parent->second_child == n);
+}
+
+
+void change_split_ratio(node_t *n, value_change_t chg) {
+ n->split_ratio = pow(n->split_ratio, (chg == CHANGE_INCREASE ? INC_EXP : DEC_EXP));
+}
+
+node_t *first_extrema(node_t *n)
{
if (n == NULL)
return NULL;
return first_extrema(n->first_child);
}
-Node *second_extrema(Node *n)
+node_t *second_extrema(node_t *n)
{
if (n == NULL)
return NULL;
return second_extrema(n->second_child);
}
-Node *find_neighbor(Node *n, direction_t dir)
+node_t *next_leaf(node_t *n)
{
if (n == NULL)
return NULL;
- switch (dir) {
- case DIR_UP:
- break;
- case DIR_LEFT:
- break;
- case DIR_DOWN:
- break;
- case DIR_RIGHT:
- break;
+ node_t *p = n;
+ while (is_second_child(p))
+ p = p->parent;
+ if (p->parent == NULL)
+ return NULL;
+ return first_extrema(p->parent->second_child);
+}
+
+node_t *prev_leaf(node_t *n)
+{
+ if (n == NULL)
+ return NULL;
+ node_t *p = n;
+ while (is_first_child(p))
+ p = p->parent;
+ if (p->parent == NULL)
+ return NULL;
+ return second_extrema(p->parent->first_child);
+}
+
+node_t *find_fence(node_t *n, direction_t dir)
+{
+ node_t *p;
+
+ if (n == NULL)
+ return NULL;
+
+ p = n->parent;
+
+ while (p != NULL) {
+ if ((dir == DIR_UP && p->split_type == TYPE_HORIZONTAL && p->rectangle.y < n->rectangle.y)
+ || (dir == DIR_LEFT && p->split_type == TYPE_VERTICAL && p->rectangle.x < n->rectangle.x)
+ || (dir == DIR_DOWN && p->split_type == TYPE_HORIZONTAL && (p->rectangle.y + p->rectangle.height) > (n->rectangle.y + n->rectangle.height))
+ || (dir == DIR_RIGHT && p->split_type == TYPE_VERTICAL && (p->rectangle.x + p->rectangle.width) > (n->rectangle.x + n->rectangle.width)))
+ return p;
+ p = p->parent;
}
+
+ return NULL;
+}
+
+node_t *find_neighbor(node_t *n, direction_t dir)
+{
+ node_t *fence = find_fence(n, dir);
+
+ if (fence == NULL)
+ return NULL;
+
+ if (dir == DIR_UP || dir == DIR_LEFT)
+ return second_extrema(fence->first_child);
+ else if (dir == DIR_DOWN || dir == DIR_RIGHT)
+ return first_extrema(fence->second_child);
+
return NULL;
}
+
+void move_fence(node_t *n, direction_t dir, fence_move_t mov)
+{
+ node_t *fence = find_fence(n, dir);
+
+ if (fence == NULL)
+ return;
+
+ if ((mov == MOVE_PUSH && (dir == DIR_RIGHT || dir == DIR_DOWN))
+ || (mov == MOVE_PULL && (dir == DIR_LEFT || dir == DIR_UP)))
+ change_split_ratio(fence, CHANGE_INCREASE);
+ else
+ change_split_ratio(fence, CHANGE_DECREASE);
+}
+
+
+void rotate_tree(node_t *n, rotate_t rot)
+{
+ if (n == NULL || is_leaf(n))
+ return;
+
+ node_t *tmp;
+
+ if ((rot == ROTATE_CLOCK_WISE && n->split_type == TYPE_HORIZONTAL)
+ || (rot == ROTATE_COUNTER_CW && n->split_type == TYPE_VERTICAL)
+ || rot == ROTATE_FULL_CYCLE) {
+ tmp = n->first_child;
+ n->first_child = n->second_child;
+ n->second_child = tmp;
+ n->split_ratio = 1.0 - n->split_ratio;
+ }
+
+ if (rot != ROTATE_FULL_CYCLE) {
+ if (n->split_type == TYPE_HORIZONTAL)
+ n->split_type = TYPE_VERTICAL;
+ else if (n->split_type == TYPE_VERTICAL)
+ n->split_type = TYPE_HORIZONTAL;
+ }
+
+ rotate_tree(n->first_child, rot);
+ rotate_tree(n->second_child, rot);
+}
+
+void dump_tree(node_t *n, char *rsp, int depth)
+{
+ if (n == NULL)
+ return;
+
+ for (int i = 0; i < depth; i++)
+ sprintf(rsp, "%s", " ");
+
+ if (n->client == NULL)
+ sprintf(rsp, "%s %.2f\n", (n->split_type == TYPE_HORIZONTAL ? "H" : "V"), n->split_ratio);
+ else
+ sprintf(rsp, "%X\n", n->client->window);
+
+ dump_tree(n->first_child, rsp, depth + 1);
+ dump_tree(n->second_child, rsp, depth + 1);
+}
+
+void update_root_dimensions(void)
+{
+ desktop_t *d = desk_head;
+ while (d != NULL) {
+ d->root->rectangle = (xcb_rectangle_t) {left_padding, top_padding, screen_width - (left_padding + right_padding), screen_height - (top_padding + bottom_padding)};
+ d = d->next;
+ }
+}
+
+void apply_layout(desktop_t *d, node_t *n)
+{
+ if (n == NULL)
+ return;
+ if (is_leaf(n)) {
+ uint32_t values[4];
+ xcb_rectangle_t rect;
+ if (desk->layout == LAYOUT_TILED)
+ rect = n->rectangle;
+ else if (desk->layout == LAYOUT_MONOCLE)
+ rect = d->root->rectangle;
+ values[0] = rect.x;
+ values[1] = rect.y;
+ values[2] = rect.width;
+ values[3] = rect.height;
+ xcb_configure_window(dpy, n->client->window, MOVE_RESIZE_MASK, values);
+ } else {
+ unsigned int fence;
+ xcb_rectangle_t rect = n->rectangle;
+ if (n->split_type == TYPE_VERTICAL) {
+ fence = rect.width * n->split_ratio;
+ n->first_child->rectangle = (xcb_rectangle_t) {rect.x, rect.y, fence, rect.height};
+ n->second_child->rectangle = (xcb_rectangle_t) {rect.x + fence, rect.y, rect.width - fence, rect.height};
+
+ } else if (n->split_type == TYPE_HORIZONTAL) {
+ fence = rect.height * n->split_ratio;
+ n->first_child->rectangle = (xcb_rectangle_t) {rect.x, rect.y, rect.width, fence};
+ n->second_child->rectangle = (xcb_rectangle_t) {rect.x, rect.y + fence, rect.width, rect.height - fence};
+ }
+ apply_layout(d, n->first_child);
+ apply_layout(d, n->second_child);
+ }
+}
+
+void insert_node(desktop_t *d, node_t *n)
+{
+ if (d == NULL || n == NULL)
+ return;
+
+ node_t *focus = d->focus;
+
+ if (focus == NULL) {
+ d->root = n;
+ } else {
+ node_t *dad = make_node();
+ node_t *fopar = focus->parent;
+ n->parent = dad;
+ switch (split_mode) {
+ case MODE_AUTOMATIC:
+ if (fopar == NULL) {
+ dad->first_child = n;
+ dad->second_child = focus;
+ dad->split_type = TYPE_VERTICAL;
+ focus->parent = dad;
+ d->root = dad;
+ } else {
+ node_t *grandpa = fopar->parent;
+ dad->parent = grandpa;
+ if (grandpa != NULL) {
+ if (is_first_child(fopar))
+ grandpa->first_child = dad;
+ else
+ grandpa->second_child = dad;
+ } else {
+ d->root = dad;
+ }
+ dad->split_type = fopar->split_type;
+ dad->split_ratio = fopar->split_ratio;
+ fopar->parent = dad;
+ if (is_first_child(focus)) {
+ dad->first_child = n;
+ dad->second_child = fopar;
+ rotate_tree(fopar, ROTATE_CLOCK_WISE);
+ } else {
+ dad->first_child = fopar;
+ dad->second_child = n;
+ rotate_tree(fopar, ROTATE_COUNTER_CW);
+ }
+ }
+ break;
+ case MODE_MANUAL:
+ focus->parent = dad;
+ switch (split_dir) {
+ case DIR_LEFT:
+ dad->split_type = TYPE_VERTICAL;
+ dad->first_child = n;
+ dad->second_child = focus;
+ break;
+ case DIR_RIGHT:
+ dad->split_type = TYPE_VERTICAL;
+ dad->first_child = focus;
+ dad->second_child = n;
+ break;
+ case DIR_UP:
+ dad->split_type = TYPE_HORIZONTAL;
+ dad->first_child = n;
+ dad->second_child = focus;
+ break;
+ case DIR_DOWN:
+ dad->split_type = TYPE_HORIZONTAL;
+ dad->first_child = focus;
+ dad->second_child = n;
+ break;
+ }
+ if (d->root == focus)
+ d->root = dad;
+ split_mode = MODE_AUTOMATIC;
+ break;
+ }
+ }
+}
+
+void focus_node(desktop_t *d, node_t *n)
+{
+ if (d == NULL || n == NULL || d->focus == n)
+ return;
+
+ draw_triple_border(d->focus, normal_border_color_pxl);
+ draw_triple_border(n, active_border_color_pxl);
+
+ xcb_set_input_focus(dpy, XCB_INPUT_FOCUS_POINTER_ROOT, n->client->window, XCB_CURRENT_TIME);
+}
+
+void select_desktop(desktop_t *d)
+{
+ if (d == NULL)
+ return;
+}
+
+void remove_node(desktop_t *d, node_t *n)
+{
+ if (d == NULL || n == NULL)
+ return;
+
+ node_t *p = n->parent;
+
+ if (p == NULL) {
+ d->root = NULL;
+ d->focus = NULL;
+ d->last_focus = NULL;
+ } else {
+ node_t *b;
+ node_t *g = p->parent;
+ if (is_first_child(n))
+ b = p->second_child;
+ else
+ b = p->first_child;
+ b->parent = g;
+ if (g != NULL) {
+ if (is_first_child(p))
+ g->first_child = b;
+ else
+ g->second_child = b;
+ } else {
+ d->root = b;
+ }
+ free(p);
+ }
+
+ free(n->client);
+ free(n);
+}
+
+
projects / bspwm.git / blobdiff