WIP merge cyclically dependent components into one big component

1 files changed, 53 insertions, 0 deletions

diff --git a/src/tangara/ui/screen.cpp b/src/tangara/ui/screen.cpp
new file mode 100644
index 00000000..a39aaf7e
--- /dev/null
+++ b/src/tangara/ui/screen.cpp
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2023 jacqueline <me@jacqueline.id.au>
+ *
+ * SPDX-License-Identifier: GPL-3.0-only
+ */
+
+#include "screen.hpp"
+
+#include <memory>
+
+#include "core/lv_obj_pos.h"
+#include "core/lv_obj_tree.h"
+#include "hal/lv_hal_disp.h"
+#include "misc/lv_area.h"
+#include "misc/lv_color.h"
+
+namespace ui {
+
+Screen::Screen()
+    : root_(lv_obj_create(NULL)),
+      content_(lv_obj_create(root_)),
+      modal_content_(lv_obj_create(root_)),
+      alert_(lv_obj_create(root_)),
+      group_(lv_group_create()),
+      modal_group_(nullptr) {
+  lv_obj_set_size(root_, lv_pct(100), lv_pct(100));
+  lv_obj_set_size(content_, lv_pct(100), lv_pct(100));
+  lv_obj_set_size(modal_content_, lv_pct(100), lv_pct(100));
+  lv_obj_set_size(alert_, LV_SIZE_CONTENT, LV_SIZE_CONTENT);
+  lv_obj_center(root_);
+  lv_obj_center(content_);
+  lv_obj_center(modal_content_);
+  lv_obj_center(alert_);
+
+  lv_obj_set_style_bg_opa(modal_content_, LV_OPA_TRANSP, 0);
+  lv_obj_set_style_bg_opa(alert_, LV_OPA_TRANSP, 0);
+
+  lv_obj_set_scrollbar_mode(root_, LV_SCROLLBAR_MODE_OFF);
+  lv_obj_set_scrollbar_mode(content_, LV_SCROLLBAR_MODE_OFF);
+
+  // Disable wrapping by default, since it's confusing and generally makes it
+  // harder to navigate quickly.
+  lv_group_set_wrap(group_, false);
+}
+
+Screen::~Screen() {
+  // The group *must* be deleted first. Otherwise, focus events will be
+  // generated whilst deleting the object tree, which causes a big mess.
+  lv_group_del(group_);
+  lv_obj_del(root_);
+}
+
+}  // namespace ui