86 lines
3 KiB
C
86 lines
3 KiB
C
/*********************************************************************************/
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/* Module Name: terminal.c */
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/* Project: AurixOS */
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/* */
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/* Copyright (c) 2024-2025 Jozef Nagy */
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/* */
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/* This source is subject to the MIT License. */
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/* See License.txt in the root of this repository. */
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/* All other rights reserved. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR */
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/* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, */
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/* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE */
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/* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER */
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/* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, */
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/* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE */
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/* SOFTWARE. */
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/*********************************************************************************/
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#include <ui/ui.h>
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#include <ui/terminal.h>
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#include <axboot.h>
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#include <print.h>
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#include <stdarg.h>
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#define HORIZONTAL_TAB_WIDTH 8
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void terminal_print(struct ui_context *ctx, char *fmt, ...)
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{
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va_list args;
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char buf[4096] = {0};
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char *s = (char *)&buf;
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va_start(args, fmt);
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snprintf((char *)&buf, sizeof(buf), fmt, args);
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va_end(args);
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while (*s) {
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switch (*s) {
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case '\t': {
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// horizontal tab - 4 spaces
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int w, h;
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ssfn_bbox(&(ctx->font), " ", &w, &h, NULL, NULL);
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if (ctx->terminal.cx >= ctx->fb_modes[ctx->current_mode].width - (w * HORIZONTAL_TAB_WIDTH)) {
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for (int i = 1; i <= HORIZONTAL_TAB_WIDTH; i++) {
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if (ctx->terminal.cx >= ctx->fb_modes[ctx->current_mode].width - (w * i)) {
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ctx->terminal.cx = ((HORIZONTAL_TAB_WIDTH * (w + 1)) - (w * i));
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ctx->terminal.cy += h;
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break;
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}
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}
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} else {
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ctx->terminal.cx += w * HORIZONTAL_TAB_WIDTH;
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}
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break;
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}
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case '\n': {
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// newline
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ctx->terminal.cx = 0;
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ctx->terminal.cy += ctx->terminal.font_size;
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break;
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}
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default: {
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// printable character
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const char str[2] = {*s, 0};
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int w, h;
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ssfn_bbox(&(ctx->font), (char *)&str, &w, &h, NULL, NULL);
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if (ctx->terminal.cx + w >= ctx->fb_modes[ctx->current_mode].width) {
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ctx->terminal.cx = 0;
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ctx->terminal.cy += h;
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}
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font_write(ctx, (char *)&str, ctx->terminal.cx, ctx->terminal.cy);
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ctx->terminal.cx += w;
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break;
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}
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}
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s++;
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}
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}
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void terminal_setcur(struct ui_context *ui, uint32_t x, uint32_t y)
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{
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ui->terminal.cx = x;
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ui->terminal.cy = y;
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}
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