1 files changed, 78 insertions, 0 deletions
diff --git a/src/gui/checkbox.cpp b/src/gui/checkbox.cpp
new file mode 100644
index 0000000..02cadc6
--- /dev/null
+++ b/src/gui/checkbox.cpp
@@ -0,0 +1,78 @@
+#include "base.h"
+
+const I32 CHECKBOX_SIZE = 14;
+
+void gui_checkbox_draw_fn( void* ptr ) {
+  GUI_CHECKBOX* check = (GUI_CHECKBOX*)ptr;
+
+  I32 x = gui_relx( check );
+  I32 y = gui_rely( check );
+
+  I32 half = CHECKBOX_SIZE / 2;
+
+  CLR col = gui_is_fg_window( check )? ui_clr.border : ui_clr.border_inactive;
+  gui_draw_frect( x, y+2, CHECKBOX_SIZE, CHECKBOX_SIZE, col );
+  gui_draw_frect( x+1, y+3, CHECKBOX_SIZE-2, CHECKBOX_SIZE-2, ui_clr.bg_sec );
+
+  if( *check->pval )
+    gui_draw_str( x + half, y, ALIGN_C, FNT_JPN12, ui_clr.txt, "x" );
+
+  gui_draw_str( x + CHECKBOX_SIZE + 2, y, ALIGN_L, FNT_JPN12, ui_clr.txt, check->name );
+}
+
+void gui_checkbox_input_fn( void* ptr ) {
+  GUI_CHECKBOX* check = (GUI_CHECKBOX*)ptr;
+
+  I32 x = gui_relx( check );
+  I32 y = gui_rely( check );
+
+  U8 m1 = gui_mbutton_down( 0 );
+  I32 mx, my;
+  gui_cursor_pos( &mx, &my );
+
+  gui_draw_get_str_bounds( &check->w, 0, FNT_JPN12, check->name );
+  check->w += CHECKBOX_SIZE + 2;
+
+  U8 inbounds = mx >= x && mx <= x + check->w && my >= y && my <= y + check->h;
+
+  if( !m1 ) {
+    // checkbox could be destroyed by callback
+    U8 was_held = check->held;
+    check->held = 0;
+    if( inbounds && was_held ) {
+      *check->pval = !*check->pval;
+      if( check->cb )
+        check->cb( check );
+    }
+
+    return;
+  }
+
+  if( inbounds )
+    check->held = 1;
+}
+
+GUI_CHECKBOX* gui_checkbox( I32 x, I32 y, const char* title, U8* pval ) {
+  if( !gui_check_target() ) return 0;
+
+  GUI_CHECKBOX* check = new GUI_CHECKBOX;
+  check->x = x;
+  check->y = y;
+  check->cb = 0;
+  check->ybound = check->h = 16;
+  check->draw_fn = gui_checkbox_draw_fn;
+  check->input_fn = gui_checkbox_input_fn;
+
+  check->pval = pval;
+
+  check->parent = _gui.cur_view;
+  strcpy( check->name, title );
+
+  gui_draw_get_str_bounds( &check->w, 0, FNT_JPN12, check->name );
+  check->w += CHECKBOX_SIZE + 2;
+  check->xbound = check->w;
+  check->ybound = check->h;
+
+  gui_get_view()->children.push( check );
+  return check;
+}