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Merge pull request #2244 from RyanDwyer/floating-resize

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Implement resize command for floating views
master
Drew DeVault 6 years ago committed by GitHub
parent 4e486a01bb 0584ecec0a
commit 63f28bcf1e
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 351 additions and 55 deletions
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406
sway/commands/resize.c
Unescape View File

@ -1,4 +1,5 @@
#include <errno.h>
#include <limits.h>
#include <math.h>
#include <stdbool.h>
#include <stdlib.h>
@ -7,6 +8,7 @@
#include <wlr/util/log.h>
#include "sway/commands.h"
#include "sway/tree/arrange.h"
#include "sway/tree/view.h"
#include "log.h"
static const int MIN_SANE_W = 100, MIN_SANE_H = 60;
@ -21,9 +23,18 @@ enum resize_unit {
enum resize_axis {
RESIZE_AXIS_HORIZONTAL,
RESIZE_AXIS_VERTICAL,
RESIZE_AXIS_UP,
RESIZE_AXIS_DOWN,
RESIZE_AXIS_LEFT,
RESIZE_AXIS_RIGHT,
RESIZE_AXIS_INVALID,
};
struct resize_amount {
int amount;
enum resize_unit unit;
};
static enum resize_unit parse_resize_unit(const char *unit) {
if (strcasecmp(unit, "px") == 0) {
return RESIZE_UNIT_PX;
@ -37,6 +48,69 @@ static enum resize_unit parse_resize_unit(const char *unit) {
return RESIZE_UNIT_INVALID;
}
// Parse arguments such as "10", "10px" or "10 px".
// Returns the number of arguments consumed.
static int parse_resize_amount(int argc, char **argv,
struct resize_amount *amount) {
char *err;
amount->amount = (int)strtol(argv[0], &err, 10);
if (*err) {
// e.g. 10px
amount->unit = parse_resize_unit(err);
return 1;
}
if (argc == 1) {
amount->unit = RESIZE_UNIT_DEFAULT;
return 1;
}
// Try the second argument
amount->unit = parse_resize_unit(argv[1]);
if (amount->unit == RESIZE_UNIT_INVALID) {
amount->unit = RESIZE_UNIT_DEFAULT;
return 1;
}
return 2;
}
static void calculate_constraints(int *min_width, int *max_width,
int *min_height, int *max_height) {
struct sway_container *con = config->handler_context.current_container;
if (config->floating_minimum_width == -1) { // no minimum
*min_width = 0;
} else if (config->floating_minimum_width == 0) { // automatic
*min_width = 75;
} else {
*min_width = config->floating_minimum_width;
}
if (config->floating_minimum_height == -1) { // no minimum
*min_height = 0;
} else if (config->floating_minimum_height == 0) { // automatic
*min_height = 50;
} else {
*min_height = config->floating_minimum_height;
}
if (config->floating_maximum_width == -1) { // no maximum
*max_width = INT_MAX;
} else if (config->floating_maximum_width == 0) { // automatic
struct sway_container *ws = container_parent(con, C_WORKSPACE);
*max_width = ws->width;
} else {
*max_width = config->floating_maximum_width;
}
if (config->floating_maximum_height == -1) { // no maximum
*max_height = INT_MAX;
} else if (config->floating_maximum_height == 0) { // automatic
struct sway_container *ws = container_parent(con, C_WORKSPACE);
*max_height = ws->height;
} else {
*max_height = config->floating_maximum_height;
}
}
static enum resize_axis parse_resize_axis(const char *axis) {
if (strcasecmp(axis, "width") == 0 || strcasecmp(axis, "horizontal") == 0) {
return RESIZE_AXIS_HORIZONTAL;
@ -44,6 +118,18 @@ static enum resize_axis parse_resize_axis(const char *axis) {
if (strcasecmp(axis, "height") == 0 || strcasecmp(axis, "vertical") == 0) {
return RESIZE_AXIS_VERTICAL;
}
if (strcasecmp(axis, "up") == 0) {
return RESIZE_AXIS_UP;
}
if (strcasecmp(axis, "down") == 0) {
return RESIZE_AXIS_DOWN;
}
if (strcasecmp(axis, "left") == 0) {
return RESIZE_AXIS_LEFT;
}
if (strcasecmp(axis, "right") == 0) {
return RESIZE_AXIS_RIGHT;
}
return RESIZE_AXIS_INVALID;
}
@ -185,102 +271,312 @@ static void resize_tiled(int amount, enum resize_axis axis) {
arrange_and_commit(parent->parent);
}
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;
/**
* Implement `resize <grow|shrink>` for a floating container.
*/
static struct cmd_results *resize_adjust_floating(enum resize_axis axis,
struct resize_amount *amount) {
struct sway_container *con = config->handler_context.current_container;
int grow_width = 0, grow_height = 0;
switch (axis) {
case RESIZE_AXIS_HORIZONTAL:
case RESIZE_AXIS_LEFT:
case RESIZE_AXIS_RIGHT:
grow_width = amount->amount;
break;
case RESIZE_AXIS_VERTICAL:
case RESIZE_AXIS_UP:
case RESIZE_AXIS_DOWN:
grow_height = amount->amount;
break;
case RESIZE_AXIS_INVALID:
return cmd_results_new(CMD_INVALID, "resize", "Invalid axis/direction");
}
// Make sure we're not adjusting beyond floating min/max size
int min_width, max_width, min_height, max_height;
calculate_constraints(&min_width, &max_width, &min_height, &max_height);
if (con->width + grow_width < min_width) {
grow_width = min_width - con->width;
} else if (con->width + grow_width > max_width) {
grow_width = max_width - con->width;
}
if (con->height + grow_height < min_height) {
grow_height = min_height - con->height;
} else if (con->height + grow_height > max_height) {
grow_height = max_height - con->height;
}
int grow_x = 0, grow_y = 0;
switch (axis) {
case RESIZE_AXIS_HORIZONTAL:
grow_x = -grow_width / 2;
break;
case RESIZE_AXIS_VERTICAL:
grow_y = -grow_height / 2;
break;
case RESIZE_AXIS_UP:
grow_y = -grow_height;
break;
case RESIZE_AXIS_LEFT:
grow_x = -grow_width;
break;
case RESIZE_AXIS_DOWN:
case RESIZE_AXIS_RIGHT:
break;
case RESIZE_AXIS_INVALID:
return cmd_results_new(CMD_INVALID, "resize", "Invalid axis/direction");
}
con->x += grow_x;
con->y += grow_y;
con->width += grow_width;
con->height += grow_height;
if (con->type == C_VIEW) {
struct sway_view *view = con->sway_view;
view->x += grow_x;
view->y += grow_y;
view->width += grow_width;
view->height += grow_height;
}
arrange_and_commit(con);
return cmd_results_new(CMD_SUCCESS, NULL, NULL);
}
if (unit == RESIZE_UNIT_PPT) {
float pct = amount / 100.0f;
/**
* Implement `resize <grow|shrink>` for a tiled container.
*/
static struct cmd_results *resize_adjust_tiled(enum resize_axis axis,
struct resize_amount *amount) {
struct sway_container *current = config->handler_context.current_container;
if (amount->unit == RESIZE_UNIT_DEFAULT) {
amount->unit = RESIZE_UNIT_PPT;
}
if (amount->unit == RESIZE_UNIT_PPT) {
float pct = amount->amount / 100.0f;
// TODO: Make left/right/up/down resize in that direction?
switch (axis) {
case RESIZE_AXIS_LEFT:
case RESIZE_AXIS_RIGHT:
case RESIZE_AXIS_HORIZONTAL:
amount = (float)current->width * pct;
amount->amount = (float)current->width * pct;
break;
case RESIZE_AXIS_UP:
case RESIZE_AXIS_DOWN:
case RESIZE_AXIS_VERTICAL:
amount = (float)current->height * pct;
amount->amount = (float)current->height * pct;
break;
default:
sway_assert(0, "invalid resize axis");
return;
case RESIZE_AXIS_INVALID:
return cmd_results_new(CMD_INVALID, "resize",
"Invalid resize axis/direction");
}
}
return resize_tiled(amount, axis);
resize_tiled(amount->amount, axis);
return cmd_results_new(CMD_SUCCESS, NULL, NULL);
}
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");
/**
* Implement `resize set` for a tiled container.
*/
static struct cmd_results *resize_set_tiled(struct sway_container *con,
struct resize_amount *width, struct resize_amount *height) {
return cmd_results_new(CMD_INVALID, "resize",
"'resize set' is not implemented for tiled views");
}
/**
* Implement `resize set` for a floating container.
*/
static struct cmd_results *resize_set_floating(struct sway_container *con,
struct resize_amount *width, struct resize_amount *height) {
int min_width, max_width, min_height, max_height;
calculate_constraints(&min_width, &max_width, &min_height, &max_height);
width->amount = fmax(min_width, fmin(width->amount, max_width));
height->amount = fmax(min_height, fmin(height->amount, max_height));
int grow_width = width->amount - con->width;
int grow_height = height->amount - con->height;
con->x -= grow_width / 2;
con->y -= grow_height / 2;
con->width = width->amount;
con->height = height->amount;
if (con->type == C_VIEW) {
struct sway_view *view = con->sway_view;
view->x -= grow_width / 2;
view->y -= grow_height / 2;
view->width += grow_width;
view->height += grow_height;
}
arrange_and_commit(con);
return cmd_results_new(CMD_SUCCESS, NULL, NULL);
}
/**
* resize set <args>
*
* args: <width> [px|ppt] <height> [px|ppt]
*/
static struct cmd_results *cmd_resize_set(int argc, char **argv) {
struct cmd_results *error;
if ((error = checkarg(argc, "resize", EXPECTED_AT_LEAST, 2))) {
return error;
}
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");
const char *usage = "Expected 'resize set <width> <height>'";
// Width
struct resize_amount width;
int num_consumed_args = parse_resize_amount(argc, argv, &width);
argc -= num_consumed_args;
argv += num_consumed_args;
if (width.unit == RESIZE_UNIT_INVALID) {
return cmd_results_new(CMD_INVALID, "resize", usage);
}
if (!argc) {
return cmd_results_new(CMD_INVALID, "resize", usage);
}
// TODO: resize grow|shrink left|right|up|down
// Height
struct resize_amount height;
num_consumed_args = parse_resize_amount(argc, argv, &height);
argc -= num_consumed_args;
argv += num_consumed_args;
if (height.unit == RESIZE_UNIT_INVALID) {
return cmd_results_new(CMD_INVALID, "resize", usage);
}
const char *usage = "Expected 'resize <shrink|grow> "
"<width|height> [<amount>] [px|ppt]'";
// If 0, don't resize that dimension
struct sway_container *con = config->handler_context.current_container;
if (width.amount <= 0) {
width.amount = con->width;
}
if (height.amount <= 0) {
height.amount = con->height;
}
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);
if (container_is_floating(con)) {
return resize_set_floating(con, &width, &height);
}
--argc; ++argv;
return resize_set_tiled(con, &width, &height);
}
/**
* resize <grow|shrink> <args>
*
* args: <direction>
* args: <direction> <amount> <unit>
* args: <direction> <amount> <unit> or <amount> <other_unit>
*/
static struct cmd_results *cmd_resize_adjust(int argc, char **argv,
int multiplier) {
const char *usage = "Expected 'resize grow|shrink <direction> "
"[<amount> px|ppt [or <amount> px|ppt]]'";
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;
// First amount
struct resize_amount first_amount;
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);
}
int num_consumed_args = parse_resize_amount(argc, argv, &first_amount);
argc -= num_consumed_args;
argv += num_consumed_args;
if (first_amount.unit == RESIZE_UNIT_INVALID) {
return cmd_results_new(CMD_INVALID, "resize", usage);
}
--argc; ++argv;
} else {
first_amount.amount = 10;
first_amount.unit = RESIZE_UNIT_DEFAULT;
}
// "or"
if (argc) {
unit = parse_resize_unit(*argv);
if (unit == RESIZE_UNIT_INVALID) {
if (strcmp(*argv, "or") != 0) {
return cmd_results_new(CMD_INVALID, "resize", usage);
}
--argc; ++argv;
}
// Second amount
struct resize_amount second_amount;
if (argc) {
// Provied too many args, the bastard
return cmd_results_new(CMD_INVALID, "resize", usage);
int num_consumed_args = parse_resize_amount(argc, argv, &second_amount);
argc -= num_consumed_args;
argv += num_consumed_args;
if (second_amount.unit == RESIZE_UNIT_INVALID) {
return cmd_results_new(CMD_INVALID, "resize", usage);
}
} else {
second_amount.unit = RESIZE_UNIT_INVALID;
}
resize(amount * multiplier, axis, unit);
return cmd_results_new(CMD_SUCCESS, NULL, NULL);
first_amount.amount *= multiplier;
second_amount.amount *= multiplier;
struct sway_container *con = config->handler_context.current_container;
if (container_is_floating(con)) {
// Floating containers can only resize in px. Choose an amount which
// uses px, with fallback to an amount that specified no unit.
if (first_amount.unit == RESIZE_UNIT_PX) {
return resize_adjust_floating(axis, &first_amount);
} else if (second_amount.unit == RESIZE_UNIT_PX) {
return resize_adjust_floating(axis, &second_amount);
} else if (first_amount.unit == RESIZE_UNIT_DEFAULT) {
return resize_adjust_floating(axis, &first_amount);
} else if (second_amount.unit == RESIZE_UNIT_DEFAULT) {
return resize_adjust_floating(axis, &second_amount);
} else {
return cmd_results_new(CMD_INVALID, "resize",
"Floating containers cannot use ppt measurements");
}
}
// For tiling, prefer ppt -> default -> px
if (first_amount.unit == RESIZE_UNIT_PPT) {
return resize_adjust_tiled(axis, &first_amount);
} else if (second_amount.unit == RESIZE_UNIT_PPT) {
return resize_adjust_tiled(axis, &second_amount);
} else if (first_amount.unit == RESIZE_UNIT_DEFAULT) {
return resize_adjust_tiled(axis, &first_amount);
} else if (second_amount.unit == RESIZE_UNIT_DEFAULT) {
return resize_adjust_tiled(axis, &second_amount);
} else {
return resize_adjust_tiled(axis, &first_amount);
}
}
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");
}
struct cmd_results *error;
if ((error = checkarg(argc, "resize", EXPECTED_AT_LEAST, 2))) {
return error;
}
if (strcasecmp(argv[0], "set") == 0) {
return cmd_resize_set(argc - 1, &argv[1]);
}
if (strcasecmp(argv[0], "grow") == 0) {
return cmd_resize_adjust(argc - 1, &argv[1], 1);
}
if (strcasecmp(argv[0], "shrink") == 0) {
return cmd_resize_adjust(argc - 1, &argv[1], -1);
}
const char *usage = "Expected 'resize <shrink|grow> "
"<width|height|up|down|left|right> [<amount>] [px|ppt]'";
return cmd_results_new(CMD_INVALID, "resize", usage);
}

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