commit 0456c7d394347d9f75dfd3b3d022fa8b8894a174
Author: Samdal <samdal@protonmail.com>
Date: Thu, 20 Oct 2022 18:11:03 +0200
initial commit
Diffstat:
| A | gs_ddt.h | | | 129 | +++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ |
1 file changed, 129 insertions(+), 0 deletions(-)
diff --git a/gs_ddt.h b/gs_ddt.h
@@ -0,0 +1,129 @@
+#ifndef GS_DDT_H_
+#define GS_DDT_H_
+
+typedef void(*gs_ddt_func)(int argc, char** argv);
+
+typedef struct gs_ddt_command_s {
+ gs_ddt_func func;
+ const char* name;
+ const char* desc;
+} gs_ddt_command_t;
+
+extern void gs_ddt_printf(const char* fmt, ...);
+extern void gs_ddt_update(gs_gui_context_t* ctx, const gs_gui_selector_desc_t* desc,
+ int open, int autoscroll, float size, float open_speed, float close_speed,
+ gs_ddt_command_t* commands, int command_len);
+// A gui context must be begun before this is ran
+
+#ifdef GS_DDT_IMPL
+
+static char ddt_tb[2048] = ""; // text buffer
+static char ddt_cb[524] = ""; // "command" buffer
+
+void
+gs_ddt_printf(const char* fmt, ...)
+{
+ char tmp[512] = "";
+ va_list args;
+
+ va_start(args, fmt);
+ vsnprintf(tmp, sizeof(tmp), fmt, args);
+ va_end(args);
+
+ int n = sizeof(ddt_tb) - strlen(ddt_tb) - 1;
+ int resize = strlen(tmp) - n;
+ if (resize > 0)
+ memmove(ddt_tb, ddt_tb + resize, sizeof(ddt_tb) - resize);
+ n = sizeof(ddt_tb) - strlen(ddt_tb) - 1;
+ strncat(ddt_tb, tmp, n);
+}
+
+void
+gs_ddt_update(gs_gui_context_t* ctx, const gs_gui_selector_desc_t* desc,
+ int open, int autoscroll, float size, float open_speed, float close_speed,
+ gs_ddt_command_t* commands, int command_len)
+{
+ gs_vec2 fb = ctx->framebuffer_size;
+ static float ddty;
+ static int last_open_state;
+
+ if (open)
+ ddty = gs_interp_linear(ddty, fb.y * size, open_speed);
+ else if (!open && ddty > 0)
+ ddty = gs_interp_linear(ddty, -1, close_speed);
+ else if (!open)
+ return;
+
+ if (gs_gui_window_begin_ex(ctx, "gs_ddt_content", gs_gui_rect(0, 0, fb.x, ddty - 24), NULL, NULL,
+ GS_GUI_OPT_FORCESETRECT | GS_GUI_OPT_NOTITLE | GS_GUI_OPT_NORESIZE)) {
+ gs_gui_layout_row(ctx, 1, (int[]){-1}, 0);
+ gs_gui_text(ctx, ddt_tb);
+ if (autoscroll) gs_gui_get_current_container(ctx)->scroll.y = sizeof(ddt_tb)*7+100;
+ gs_gui_window_end(ctx);
+ }
+
+ if (gs_gui_window_begin_ex(ctx, "gs_ddt_input", gs_gui_rect(0, ddty - 24, fb.x, 24), NULL, NULL,
+ GS_GUI_OPT_FORCESETRECT | GS_GUI_OPT_NOTITLE | GS_GUI_OPT_NORESIZE)) {
+ int len = strlen(ddt_cb);
+ gs_gui_layout_row(ctx, 3, (int[]){14, len * 7+2, 10}, 0);
+ gs_gui_text(ctx, "$>");
+ gs_gui_text(ctx, ddt_cb);
+
+ // handle text input
+ int32_t n = gs_min(sizeof(ddt_cb) - len - 1, (int32_t) strlen(ctx->input_text));
+ if (!open || !last_open_state) {
+
+ } else if (ctx->key_pressed & GS_GUI_KEY_RETURN) {
+ gs_ddt_printf("$ %s\n", ddt_cb);
+
+ if (*ddt_cb && commands) {
+ char* tmp = ddt_cb;
+ int argc = 1;
+ while((tmp = strchr(tmp, ' '))) {
+ argc++;
+ tmp++;
+ }
+
+ tmp = ddt_cb;
+ char* last_pos = ddt_cb;
+ char* argv[argc];
+ int i = 0;
+ while((tmp = strchr(tmp, ' '))) {
+ *tmp = 0;
+ argv[i++] = last_pos;
+ last_pos = ++tmp;
+ }
+ argv[argc-1] = last_pos;
+
+ for (int i = 0; i < command_len; i++) {
+ if (commands[i].name && commands[i].func && strcmp(argv[0], commands[i].name) == 0) {
+ commands[i].func(argc, argv);
+ goto command_found;
+ }
+ }
+ gs_ddt_printf("[gs_ddt]: unrecognized command '%s'\n", argv[0]);
+ command_found:
+ ddt_cb[0] = '\0';
+ }
+ } else if (ctx->key_pressed & GS_GUI_KEY_BACKSPACE && len > 0) {
+ // skip utf-8 continuation bytes
+ while ((ddt_cb[--len] & 0xc0) == 0x80 && len > 0);
+ ddt_cb[len] = '\0';
+ } else if (n > 0) {
+ memcpy(ddt_cb + len, ctx->input_text, n);
+ len += n;
+ ddt_cb[len] = '\0';
+ }
+
+ // blinking cursor
+ gs_gui_get_layout(ctx)->body.x -= 5;
+ if ((int)(gs_platform_elapsed_time() / 666.0f) & 1)
+ gs_gui_text(ctx, "|");
+ gs_gui_window_end(ctx);
+
+ last_open_state = open;
+ }
+}
+#endif // GS_DDT_IMPL
+
+#endif // GS_DDT_H_
