emersion
7 years ago
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78e3bc1329
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#ifndef _SWAY_ARRANGE_H
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#define _SWAY_ARRANGE_H
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struct sway_container;
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void arrange_windows(struct sway_container *container);
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// Determine the root container's geometry, then iterate to everything below
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void arrange_root(void);
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// Determine the output's geometry, then iterate to everything below
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void arrange_output(struct sway_container *output);
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// Determine the workspace's geometry, then iterate to everything below
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void arrange_workspace(struct sway_container *workspace);
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// Arrange layout for all the children of the given workspace/container
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void arrange_children_of(struct sway_container *parent);
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#endif
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@ -0,0 +1,239 @@
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#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/debug.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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struct sway_container root_container;
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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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break;
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case C_VIEW:
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// ignore
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break;
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case C_TYPES:
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sway_assert(
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false, "Called arrange_windows() with container type C_TYPES");
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break;
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}
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}
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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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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_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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if (!sway_assert(output->type == C_OUTPUT,
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"called arrange_output() on non-output container")) {
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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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wlr_log(L_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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container_damage_whole(output);
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}
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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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if (!sway_assert(workspace->type == C_WORKSPACE,
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"called arrange_workspace() on non-workspace container")) {
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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(L_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->width = area->width;
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workspace->height = area->height;
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workspace->x = area->x;
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workspace->y = area->y;
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wlr_log(L_DEBUG, "Arranging workspace '%s' at %f, %f",
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workspace->name, workspace->x, workspace->y);
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arrange_children_of(workspace);
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container_damage_whole(workspace);
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}
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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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// 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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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(L_DEBUG, "Arranging %p horizontally", parent);
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double child_x = parent->x;
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struct sway_container *child;
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for (size_t i = 0; i < num_children; ++i) {
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child = parent->children->items[i];
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wlr_log(L_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;
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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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}
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// Make last child use remaining width of parent
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child->width = parent->x + parent->width - child->x;
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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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// 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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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(L_DEBUG, "Arranging %p vertically", parent);
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double child_y = parent->y;
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struct sway_container *child;
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for (size_t i = 0; i < num_children; ++i) {
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child = parent->children->items[i];
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wlr_log(L_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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}
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// Make last child use remaining height of parent
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child->height = parent->y + parent->height - child->y;
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}
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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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if (!sway_assert(parent->type == C_WORKSPACE || parent->type == C_CONTAINER,
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"container is a %s", container_type_to_str(parent->type))) {
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return;
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}
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struct sway_container *workspace = parent;
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if (workspace->type != C_WORKSPACE) {
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workspace = container_parent(workspace, C_WORKSPACE);
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}
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if (workspace->sway_workspace->fullscreen) {
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// Just arrange the fullscreen view and jump out
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struct sway_container *view =
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workspace->sway_workspace->fullscreen->swayc;
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view_configure(view->sway_view, 0, 0,
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workspace->parent->width, workspace->parent->height);
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view->width = workspace->parent->width;
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view->height = workspace->parent->height;
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return;
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}
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wlr_log(L_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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default:
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wlr_log(L_DEBUG, "TODO: arrange layout type %d", parent->layout);
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apply_horiz_layout(parent);
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break;
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}
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// Apply x, y, width and height to children and recurse if needed
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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 (child->type == C_VIEW) {
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view_configure(child->sway_view, child->x, child->y,
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child->width, child->height);
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} else {
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arrange_children_of(child);
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}
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}
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container_damage_whole(parent);
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update_debug_tree();
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}
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