tyui text input boxes

1 files changed, 50 insertions, 0 deletions

diff --git a/teensy/teensy_ui.c b/teensy/teensy_ui.c
index 86b2c94..d055802 100644
--- a/teensy/teensy_ui.c
+++ b/teensy/teensy_ui.c
@@ -6,6 +6,7 @@
 #include <string.h>
  
 #include "teensy_list.h"
+#include "teensy_platform.h"
 
 #define TEXT_HEIGHT (8)
 #define MAX_LAYOUTS (16)
@@ -72,6 +73,8 @@ typedef struct {
     const float *layout;
 
     ty_Vec2i prev_mouse_pos;
+
+    const tyui_Text_Input *focused_text_box;
 } Ctx;
 
 static
@@ -512,6 +515,53 @@ void tyui_slider_ex(
     }
 }
 
+void tyui_text_input(tyui_Text_Input *input)
+{
+    // ASSUMES ASCII
+
+    ty_Recti rect = next_rect(TEXT_HEIGHT + control_padding() * 2);
+
+    size_t len = strlen(input->chars);
+    uint32_t c;
+
+    bool focused = input == uictx.focused_text_box;
+    bool hovered = is_hovered(rect);
+
+    if (!focused && hovered && window()->lmb_pressed) {
+        uictx.focused_text_box = input;
+        focused = true;
+    } else if (focused && !hovered && window()->lmb_pressed) {
+        uictx.focused_text_box = NULL;
+        focused = false;
+    }
+
+    if (focused) {
+        if (len < input->max_len - 1 && ty_platform_get_typed_char(&c)) {
+            input->chars[len] = c < CHAR_MAX ? (char)c : 'x';
+            input->chars[len + 1] = '\0';
+        }
+
+        if (ty_button_pressed(TY_BTN_DB_BKSPACE))
+            input->chars[len - 1] = '\0';
+    }
+
+    draw_frame(rect, uictx.style.bg_normal);
+
+    ty_Recti text_rect = ty_recti_shrink(rect, control_padding());
+    int text_width = ty_font_width(uictx.font, input->chars);
+    text_rect.w = fmin(text_rect.w, text_width);
+    text_cmd(
+        input->chars,
+        text_rect,
+        focused ? TYUI_ALIGN_RIGHT : TYUI_ALIGN_LEFT
+    );
+    if (focused && (int)(ty_get_time() * 2) % 2 == 0) {
+        text_rect.x += fmin(text_width, text_rect.w - 1);
+        text_rect.w = 1;
+        rect_cmd(text_rect, uictx.style.fg_normal);
+    }
+}
+
 static
 void draw_window(Window *win)
 {