From f77986338fc4186d003908012685c12d718ed647 Mon Sep 17 00:00:00 2001 From: Drew DeVault Date: Wed, 4 Apr 2018 21:32:31 -0400 Subject: Implement resize command --- sway/commands/resize.c | 284 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 284 insertions(+) create mode 100644 sway/commands/resize.c (limited to 'sway/commands') diff --git a/sway/commands/resize.c b/sway/commands/resize.c new file mode 100644 index 00000000..93c1fe7d --- /dev/null +++ b/sway/commands/resize.c @@ -0,0 +1,284 @@ +#include +#include +#include +#include +#include +#include +#include +#include "sway/commands.h" +#include "sway/tree/layout.h" +#include "log.h" + +static const int MIN_SANE_W = 100, MIN_SANE_H = 60; + +enum resize_unit { + RESIZE_UNIT_PX, + RESIZE_UNIT_PPT, + RESIZE_UNIT_DEFAULT, + RESIZE_UNIT_INVALID, +}; + +enum resize_axis { + RESIZE_AXIS_HORIZONTAL, + RESIZE_AXIS_VERTICAL, + RESIZE_AXIS_INVALID, +}; + +static enum resize_unit parse_resize_unit(const char *unit) { + if (strcasecmp(unit, "px") == 0) { + return RESIZE_UNIT_PX; + } + if (strcasecmp(unit, "ppt") == 0) { + return RESIZE_UNIT_PPT; + } + if (strcasecmp(unit, "default") == 0) { + return RESIZE_UNIT_DEFAULT; + } + return RESIZE_UNIT_INVALID; +} + +static enum resize_axis parse_resize_axis(const char *axis) { + if (strcasecmp(axis, "width") == 0 || strcasecmp(axis, "horizontal") == 0) { + return RESIZE_AXIS_HORIZONTAL; + } + if (strcasecmp(axis, "height") == 0 || strcasecmp(axis, "vertical") == 0) { + return RESIZE_AXIS_VERTICAL; + } + return RESIZE_AXIS_INVALID; +} + +static int parallel_coord(struct sway_container *c, enum resize_axis a) { + return a == RESIZE_AXIS_HORIZONTAL ? c->x : c->y; +} + +static int parallel_size(struct sway_container *c, enum resize_axis a) { + return a == RESIZE_AXIS_HORIZONTAL ? c->width : c->height; +} + +static void resize_tiled(int amount, enum resize_axis axis) { + struct sway_container *parent = config->handler_context.current_container; + struct sway_container *focused = parent; + if (!parent) { + return; + } + + enum sway_container_layout parallel_layout = + axis == RESIZE_AXIS_HORIZONTAL ? L_HORIZ : L_VERT; + int minor_weight = 0; + int major_weight = 0; + while (parent->parent) { + struct sway_container *next = parent->parent; + if (next->layout == parallel_layout) { + for (int i = 0; i < next->children->length; i++) { + struct sway_container *sibling = next->children->items[i]; + + int sibling_pos = parallel_coord(sibling, axis); + int focused_pos = parallel_coord(focused, axis); + int parent_pos = parallel_coord(parent, axis); + + if (sibling_pos != focused_pos) { + if (sibling_pos < parent_pos) { + minor_weight++; + } else if (sibling_pos > parent_pos) { + major_weight++; + } + } + } + if (major_weight || minor_weight) { + break; + } + } + parent = next; + } + + if (parent->type == C_ROOT) { + return; + } + + wlr_log(L_DEBUG, + "Found the proper parent: %p. It has %d l conts, and %d r conts", + parent->parent, minor_weight, major_weight); + + int min_sane = axis == RESIZE_AXIS_HORIZONTAL ? MIN_SANE_W : MIN_SANE_H; + + //TODO: Ensure rounding is done in such a way that there are NO pixel leaks + // ^ ????? + + for (int i = 0; i < parent->parent->children->length; i++) { + struct sway_container *sibling = parent->parent->children->items[i]; + + int sibling_pos = parallel_coord(sibling, axis); + int focused_pos = parallel_coord(focused, axis); + int parent_pos = parallel_coord(parent, axis); + + int sibling_size = parallel_size(sibling, axis); + int parent_size = parallel_size(parent, axis); + + if (sibling_pos != focused_pos) { + if (sibling_pos < parent_pos) { + double pixels = -amount / minor_weight; + if (major_weight && (sibling_size + pixels / 2) < min_sane) { + return; // Too small + } else if ((sibling_size + pixels) < min_sane) { + return; // Too small + } + } else if (sibling_pos > parent_pos) { + double pixels = -amount / major_weight; + if (minor_weight && (sibling_size + pixels / 2) < min_sane) { + return; // Too small + } else if ((sibling_size + pixels) < min_sane) { + return; // Too small + } + } + } else { + double pixels = amount; + if (parent_size + pixels < min_sane) { + return; // Too small + } + } + } + + enum resize_edge minor_edge = axis == RESIZE_AXIS_HORIZONTAL ? + RESIZE_EDGE_LEFT : RESIZE_EDGE_TOP; + enum resize_edge major_edge = axis == RESIZE_AXIS_HORIZONTAL ? + RESIZE_EDGE_RIGHT : RESIZE_EDGE_BOTTOM; + + for (int i = 0; i < parent->parent->children->length; i++) { + struct sway_container *sibling = parent->parent->children->items[i]; + + int sibling_pos = parallel_coord(sibling, axis); + int focused_pos = parallel_coord(focused, axis); + int parent_pos = parallel_coord(parent, axis); + + if (sibling_pos != focused_pos) { + if (sibling_pos < parent_pos) { + double pixels = -1 * amount; + pixels /= minor_weight; + if (major_weight) { + container_recursive_resize(sibling, pixels / 2, major_edge); + } else { + container_recursive_resize(sibling, pixels, major_edge); + } + } else if (sibling_pos > parent_pos) { + double pixels = -1 * amount; + pixels /= major_weight; + if (minor_weight) { + container_recursive_resize(sibling, pixels / 2, minor_edge); + } else { + container_recursive_resize(sibling, pixels, minor_edge); + } + } + } else { + if (major_weight != 0 && minor_weight != 0) { + double pixels = amount; + pixels /= 2; + container_recursive_resize(parent, pixels, minor_edge); + container_recursive_resize(parent, pixels, major_edge); + } else if (major_weight) { + container_recursive_resize(parent, amount, major_edge); + } else if (minor_weight) { + container_recursive_resize(parent, amount, minor_edge); + } + } + } + + arrange_windows(parent->parent, -1, -1); +} + +static void resize(int amount, enum resize_axis axis, enum resize_unit unit) { + struct sway_container *current = config->handler_context.current_container; + if (unit == RESIZE_UNIT_DEFAULT) { + // Default for tiling; TODO floating should be px + unit = RESIZE_UNIT_PPT; + } + + if (unit == RESIZE_UNIT_PPT) { + float pct = amount / 100.0f; + switch (axis) { + case RESIZE_AXIS_HORIZONTAL: + amount = (float)current->width * pct; + break; + case RESIZE_AXIS_VERTICAL: + amount = (float)current->height * pct; + break; + default: + sway_assert(0, "invalid resize axis"); + return; + } + } + + return resize_tiled(amount, axis); +} + +struct cmd_results *cmd_resize(int argc, char **argv) { + struct sway_container *current = config->handler_context.current_container; + if (!current) { + return cmd_results_new(CMD_INVALID, "resize", "Cannot resize nothing"); + } + if (current->type != C_VIEW && current->type != C_CONTAINER) { + return cmd_results_new(CMD_INVALID, "resize", + "Can only resize views/containers"); + } + if (strcasecmp(argv[0], "set") == 0) { + // TODO + //return cmd_resize_set(argc - 1, &argv[1]); + return cmd_results_new(CMD_INVALID, "resize", "resize set unimplemented"); + } + struct cmd_results *error; + if ((error = checkarg(argc, "resize", EXPECTED_AT_LEAST, 2))) { + return error; + } + + // TODO: resize grow|shrink left|right|up|down + + const char *usage = "Expected 'resize " + " [] [px|ppt]'"; + + int multiplier = 0; + if (strcasecmp(*argv, "grow") == 0) { + multiplier = 1; + } else if (strcasecmp(*argv, "shrink") == 0) { + multiplier = -1; + } else { + return cmd_results_new(CMD_INVALID, "resize", usage); + } + --argc; ++argv; + + enum resize_axis axis = parse_resize_axis(*argv); + if (axis == RESIZE_AXIS_INVALID) { + return cmd_results_new(CMD_INVALID, "resize", usage); + } + --argc; ++argv; + + int amount = 10; // Default amount + enum resize_unit unit = RESIZE_UNIT_DEFAULT; + + if (argc) { + char *err; + amount = (int)strtol(*argv, &err, 10); + if (*err) { + // e.g. `resize grow width 10px` + unit = parse_resize_unit(err); + if (unit == RESIZE_UNIT_INVALID) { + return cmd_results_new(CMD_INVALID, "resize", usage); + } + } + --argc; ++argv; + } + + if (argc) { + unit = parse_resize_unit(*argv); + if (unit == RESIZE_UNIT_INVALID) { + return cmd_results_new(CMD_INVALID, "resize", usage); + } + --argc; ++argv; + } + + if (argc) { + // Provied too many args, the bastard + return cmd_results_new(CMD_INVALID, "resize", usage); + } + + resize(amount * multiplier, axis, unit); + return cmd_results_new(CMD_SUCCESS, NULL, NULL); +} -- cgit v1.2.3