1 files changed, 66 insertions, 0 deletions
diff --git a/src/gui/button.cpp b/src/gui/button.cpp
new file mode 100644
index 0000000..2b57772
--- /dev/null
+++ b/src/gui/button.cpp
@@ -0,0 +1,66 @@
+#include "base.h"
+
+void gui_button_draw_fn( void* ptr ) {
+  GUI_BUTTON* btn = (GUI_BUTTON*)ptr;
+
+  I32 x = gui_relx( btn );
+  I32 y = gui_rely( btn );
+
+  CLR col = gui_is_fg_window( btn )? ui_clr.border : ui_clr.border_inactive;
+  gui_draw_frect( x, y, btn->w, btn->h, col );
+  gui_draw_frect( x+1, y+1, btn->w-2, btn->h-2, ui_clr.bg_sec );
+
+  I32 middle = x + btn->w/2;
+  I32 middle_y = y + btn->h/2 - 7;
+
+  gui_draw_str( middle, middle_y, ALIGN_C, FNT_JPN12, ui_clr.txt, btn->name );
+}
+
+void gui_button_input_fn( void* ptr ) {
+  GUI_BUTTON* btn = (GUI_BUTTON*)ptr;
+
+  I32 x = gui_relx( btn );
+  I32 y = gui_rely( btn );
+
+  U8 m1 = gui_mbutton_down( 0 );
+  I32 mx, my;
+  gui_cursor_pos( &mx, &my );
+
+  U8 inbounds = mx >= x && mx <= x + btn->w && my >= y && my <= y + btn->h;
+
+  if( !m1 ) {
+    // button could be destroyed by callback
+    U8 was_held = btn->held;
+    btn->held = 0;
+    if( inbounds && was_held )
+      btn->cb( btn );
+
+    return;
+  }
+
+  if( inbounds ) {
+    btn->held = 1;
+  }
+}
+
+GUI_BUTTON* gui_button( I32 x, I32 y, I32 w, I32 h, const char* title, GUI_CALLBACK cb ) {
+  if( !gui_check_target() ) return 0;
+
+  GUI_BUTTON* btn = new GUI_BUTTON;
+  btn->x = x;
+  btn->y = y;
+  btn->xbound = btn->w = w;
+  btn->ybound = btn->h = h;
+  btn->cb = cb;
+  btn->draw_fn = gui_button_draw_fn;
+  btn->input_fn = gui_button_input_fn;
+
+  btn->parent = _gui.cur_view;
+  strcpy( btn->name, title );
+
+  btn->extra = 0;
+  btn->held = 0;
+
+  gui_get_view()->children.push( btn );
+  return btn;
+}