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40 lines
866 B
40 lines
866 B
7 years ago
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#include <assert.h>
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#include <stdlib.h>
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#include "sway/commands.h"
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#include "sway/tree/view.h"
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#include "log.h"
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static bool parse_opacity(const char *opacity, float *val) {
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char *err;
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*val = strtof(opacity, &err);
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if (*val < 0 || *val > 1 || *err) {
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return false;
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}
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return true;
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}
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struct cmd_results *cmd_opacity(int argc, char **argv) {
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struct cmd_results *error = NULL;
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if ((error = checkarg(argc, "layout", EXPECTED_EQUAL_TO, 1))) {
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return error;
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}
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struct sway_container *con =
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config->handler_context.current_container;
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float opacity = 0.0f;
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if (!parse_opacity(argv[0], &opacity)) {
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return cmd_results_new(CMD_INVALID, "opacity <value>",
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"Invalid value (expected 0..1): %s", argv[0]);
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}
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con->alpha = opacity;
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if (con->type == C_VIEW) {
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view_damage_whole(con->sway_view);
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}
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return cmd_results_new(CMD_SUCCESS, NULL, NULL);
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}
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