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317 lines
9.1 KiB
317 lines
9.1 KiB
#define _POSIX_C_SOURCE 200809L
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#include <ctype.h>
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#include <stdbool.h>
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#include <stdlib.h>
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#include <string.h>
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#include <wlr/types/wlr_output.h>
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#include <wlr/types/wlr_output_layout.h>
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#include "sway/tree/arrange.h"
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#include "sway/tree/container.h"
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#include "sway/tree/layout.h"
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#include "sway/output.h"
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#include "sway/tree/workspace.h"
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#include "sway/tree/view.h"
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#include "list.h"
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#include "log.h"
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static void apply_horiz_layout(struct sway_container *parent) {
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size_t num_children = parent->children->length;
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if (!num_children) {
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return;
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}
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size_t parent_offset = 0;
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if (parent->parent->layout == L_TABBED) {
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parent_offset = container_titlebar_height();
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} else if (parent->parent->layout == L_STACKED) {
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parent_offset = container_titlebar_height() *
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parent->parent->children->length;
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}
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size_t parent_height = parent->height - parent_offset;
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// Calculate total width of children
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double total_width = 0;
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for (size_t i = 0; i < num_children; ++i) {
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struct sway_container *child = parent->children->items[i];
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if (child->width <= 0) {
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if (num_children > 1) {
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child->width = parent->width / (num_children - 1);
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} else {
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child->width = parent->width;
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}
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}
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container_remove_gaps(child);
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total_width += child->width;
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}
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double scale = parent->width / total_width;
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// Resize windows
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wlr_log(WLR_DEBUG, "Arranging %p horizontally", parent);
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double child_x = parent->x;
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for (size_t i = 0; i < num_children; ++i) {
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struct sway_container *child = parent->children->items[i];
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wlr_log(WLR_DEBUG,
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"Calculating arrangement for %p:%d (will scale %f by %f)",
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child, child->type, child->width, scale);
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child->x = child_x;
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child->y = parent->y + parent_offset;
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child->width = floor(child->width * scale);
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child->height = parent_height;
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child_x += child->width;
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// Make last child use remaining width of parent
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if (i == num_children - 1) {
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child->width = parent->x + parent->width - child->x;
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}
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container_add_gaps(child);
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}
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}
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static void apply_vert_layout(struct sway_container *parent) {
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size_t num_children = parent->children->length;
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if (!num_children) {
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return;
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}
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size_t parent_offset = 0;
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if (parent->parent->layout == L_TABBED) {
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parent_offset = container_titlebar_height();
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} else if (parent->parent->layout == L_STACKED) {
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parent_offset =
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container_titlebar_height() * parent->parent->children->length;
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}
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size_t parent_height = parent->height + parent_offset;
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// Calculate total height of children
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double total_height = 0;
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for (size_t i = 0; i < num_children; ++i) {
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struct sway_container *child = parent->children->items[i];
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if (child->height <= 0) {
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if (num_children > 1) {
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child->height = parent_height / (num_children - 1);
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} else {
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child->height = parent_height;
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}
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}
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container_remove_gaps(child);
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total_height += child->height;
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}
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double scale = parent_height / total_height;
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// Resize
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wlr_log(WLR_DEBUG, "Arranging %p vertically", parent);
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double child_y = parent->y + parent_offset;
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for (size_t i = 0; i < num_children; ++i) {
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struct sway_container *child = parent->children->items[i];
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wlr_log(WLR_DEBUG,
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"Calculating arrangement for %p:%d (will scale %f by %f)",
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child, child->type, child->height, scale);
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child->x = parent->x;
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child->y = child_y;
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child->width = parent->width;
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child->height = floor(child->height * scale);
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child_y += child->height;
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// Make last child use remaining height of parent
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if (i == num_children - 1) {
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child->height =
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parent->y + parent_offset + parent_height - child->y;
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}
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container_add_gaps(child);
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}
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}
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static void apply_tabbed_or_stacked_layout(struct sway_container *parent) {
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if (!parent->children->length) {
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return;
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}
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size_t parent_offset = 0;
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if (parent->parent->layout == L_TABBED) {
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parent_offset = container_titlebar_height();
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} else if (parent->parent->layout == L_STACKED) {
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parent_offset =
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container_titlebar_height() * parent->parent->children->length;
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}
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size_t parent_height = parent->height - parent_offset;
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for (int i = 0; i < parent->children->length; ++i) {
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struct sway_container *child = parent->children->items[i];
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container_remove_gaps(child);
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child->x = parent->x;
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child->y = parent->y + parent_offset;
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child->width = parent->width;
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child->height = parent_height;
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container_add_gaps(child);
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}
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}
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static void arrange_children_of(struct sway_container *parent);
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static void arrange_floating(list_t *floating) {
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for (int i = 0; i < floating->length; ++i) {
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struct sway_container *floater = floating->items[i];
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if (floater->type == C_VIEW) {
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view_autoconfigure(floater->sway_view);
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} else {
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arrange_children_of(floater);
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}
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container_set_dirty(floater);
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}
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}
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static void arrange_children_of(struct sway_container *parent) {
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if (config->reloading) {
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return;
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}
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wlr_log(WLR_DEBUG, "Arranging layout for %p %s %fx%f+%f,%f", parent,
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parent->name, parent->width, parent->height, parent->x, parent->y);
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// Calculate x, y, width and height of children
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switch (parent->layout) {
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case L_HORIZ:
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apply_horiz_layout(parent);
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break;
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case L_VERT:
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apply_vert_layout(parent);
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break;
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case L_TABBED:
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case L_STACKED:
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apply_tabbed_or_stacked_layout(parent);
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break;
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case L_NONE:
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apply_horiz_layout(parent);
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break;
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}
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// Recurse into child containers
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for (int i = 0; i < parent->children->length; ++i) {
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struct sway_container *child = parent->children->items[i];
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if (parent->has_gaps && !child->has_gaps) {
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child->has_gaps = true;
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child->gaps_inner = parent->gaps_inner;
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child->gaps_outer = parent->gaps_outer;
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}
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if (child->type == C_VIEW) {
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view_autoconfigure(child->sway_view);
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} else {
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arrange_children_of(child);
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}
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container_set_dirty(child);
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}
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}
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static void arrange_workspace(struct sway_container *workspace) {
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if (config->reloading) {
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return;
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}
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struct sway_container *output = workspace->parent;
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struct wlr_box *area = &output->sway_output->usable_area;
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wlr_log(WLR_DEBUG, "Usable area for ws: %dx%d@%d,%d",
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area->width, area->height, area->x, area->y);
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workspace_remove_gaps(workspace);
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double prev_x = workspace->x;
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double prev_y = workspace->y;
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workspace->width = area->width;
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workspace->height = area->height;
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workspace->x = output->x + area->x;
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workspace->y = output->y + area->y;
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// Adjust any floating containers
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double diff_x = workspace->x - prev_x;
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double diff_y = workspace->y - prev_y;
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for (int i = 0; i < workspace->sway_workspace->floating->length; ++i) {
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struct sway_container *floater =
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workspace->sway_workspace->floating->items[i];
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container_floating_translate(floater, diff_x, diff_y);
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double center_x = floater->x + floater->width / 2;
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double center_y = floater->y + floater->height / 2;
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struct wlr_box workspace_box;
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container_get_box(workspace, &workspace_box);
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if (!wlr_box_contains_point(&workspace_box, center_x, center_y)) {
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container_floating_move_to_center(floater);
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}
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}
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workspace_add_gaps(workspace);
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container_set_dirty(workspace);
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wlr_log(WLR_DEBUG, "Arranging workspace '%s' at %f, %f", workspace->name,
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workspace->x, workspace->y);
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if (workspace->sway_workspace->fullscreen) {
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struct sway_container *fs = workspace->sway_workspace->fullscreen;
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fs->x = workspace->parent->x;
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fs->y = workspace->parent->y;
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fs->width = workspace->parent->width;
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fs->height = workspace->parent->height;
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if (fs->type == C_VIEW) {
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view_autoconfigure(fs->sway_view);
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} else {
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arrange_children_of(fs);
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}
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container_set_dirty(fs);
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} else {
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arrange_floating(workspace->sway_workspace->floating);
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arrange_children_of(workspace);
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}
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}
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static void arrange_output(struct sway_container *output) {
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if (config->reloading) {
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return;
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}
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const struct wlr_box *output_box = wlr_output_layout_get_box(
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root_container.sway_root->output_layout,
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output->sway_output->wlr_output);
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output->x = output_box->x;
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output->y = output_box->y;
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output->width = output_box->width;
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output->height = output_box->height;
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container_set_dirty(output);
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wlr_log(WLR_DEBUG, "Arranging output '%s' at %f,%f",
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output->name, output->x, output->y);
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for (int i = 0; i < output->children->length; ++i) {
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struct sway_container *workspace = output->children->items[i];
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arrange_workspace(workspace);
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}
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}
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static void arrange_root() {
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if (config->reloading) {
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return;
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}
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struct wlr_output_layout *output_layout =
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root_container.sway_root->output_layout;
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const struct wlr_box *layout_box =
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wlr_output_layout_get_box(output_layout, NULL);
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root_container.x = layout_box->x;
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root_container.y = layout_box->y;
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root_container.width = layout_box->width;
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root_container.height = layout_box->height;
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container_set_dirty(&root_container);
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for (int i = 0; i < root_container.children->length; ++i) {
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struct sway_container *output = root_container.children->items[i];
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arrange_output(output);
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}
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}
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void arrange_windows(struct sway_container *container) {
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switch (container->type) {
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case C_ROOT:
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arrange_root();
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break;
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case C_OUTPUT:
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arrange_output(container);
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break;
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case C_WORKSPACE:
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arrange_workspace(container);
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break;
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case C_CONTAINER:
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arrange_children_of(container);
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container_set_dirty(container);
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break;
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case C_VIEW:
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view_autoconfigure(container->sway_view);
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container_set_dirty(container);
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break;
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case C_TYPES:
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break;
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}
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}
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