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d19c32d7a4
Functionality: * Add configuration to anchor position of messages (#60, 71 in Bugs.md). * Add output priorisation (#38, 68 in Bugs.md). * Print whether output is active in dump. Bug Fixes: * Fix gamma control (72 in Bugs.md). * Add missing commands to example config. * Add message_config to dump output. Example Scripts: * Add screenshot script. * Make example scripts standalone. Documentation: * Escape html tags in config man page. (#68, 69 in Bugs.md) * Improve README.md (#62, 70 in Bugs.md). * Improve SECURITY.md. * Add CONTRIBUTING.md (#62, 70 in Bugs.md). * FAQ: Add Firefox screenshare instructions for wayland. * FAQ: Add wlroots downgrading instructions for workaround in case of temporary wlroots incompatibility. * Update copyright notices to 2024. Development Tooling: * Add new gpg keys (signed by the old ones). * Add PR template. * Add dev-FAQ. * Remove now-unnecessary fanalyzer pragmas.
50 lines
1.4 KiB
C
50 lines
1.4 KiB
C
// Copyright 2020 - 2024, project-repo and the cagebreak contributors
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// SPDX-License-Identifier: MIT
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#include <wlr/util/box.h>
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#include "util.h"
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#include <math.h>
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#include <stdlib.h>
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int
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scale_length(int length, int offset, double scale) {
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/**
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* One does not simply multiply the width by the scale. We allow fractional
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* scaling, which means the resulting scaled width might be a decimal.
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* So we round it.
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*
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* But even this can produce undesirable results depending on the X or Y
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* offset of the box. For example, with a scale of 1.5, a box with
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* width=1 should not scale to 2px if its X coordinate is 1, because the
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* X coordinate would have scaled to 2px.
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*/
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return (int)(round((offset + length) * scale) - round(offset * scale));
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}
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void
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scale_box(struct wlr_box *box, double scale) {
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box->width = scale_length(box->width, box->x, scale);
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box->height = scale_length(box->height, box->y, scale);
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box->x = (int)round(box->x * scale);
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box->y = (int)round(box->y * scale);
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}
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char *
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malloc_vsprintf_va_list(const char *fmt, va_list ap) {
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va_list ap2;
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va_copy(ap2, ap);
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int len = vsnprintf(NULL, 0, fmt, ap);
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char *ret = malloc(sizeof(char) * (len + 1));
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vsnprintf(ret, len + 1, fmt, ap2);
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va_end(ap2);
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return ret;
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}
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char *
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malloc_vsprintf(const char *fmt, ...) {
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va_list args;
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va_start(args, fmt);
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char *ret = malloc_vsprintf_va_list(fmt, args);
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return ret;
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}
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