Add PageIndicator widget to reduce code duplication (#1218)analog24

* Move PageIndicator widget to its own files to reduce code duplication
* Use uint8_t in PageIndicator

2 files changed, 54 insertions, 0 deletions

diff --git a/src/displayapp/widgets/PageIndicator.cpp b/src/displayapp/widgets/PageIndicator.cpp
new file mode 100644
index 0000000..06058be
--- /dev/null
+++ b/src/displayapp/widgets/PageIndicator.cpp
@@ -0,0 +1,31 @@
+#include "displayapp/widgets/PageIndicator.h"
+
+using namespace Pinetime::Applications::Widgets;
+
+PageIndicator::PageIndicator(uint8_t nCurrentScreen, uint8_t nScreens) : nCurrentScreen {nCurrentScreen}, nScreens {nScreens} {
+}
+
+void PageIndicator::Create() {
+  pageIndicatorBasePoints[0].x = LV_HOR_RES - 1;
+  pageIndicatorBasePoints[0].y = 0;
+  pageIndicatorBasePoints[1].x = LV_HOR_RES - 1;
+  pageIndicatorBasePoints[1].y = LV_VER_RES;
+
+  pageIndicatorBase = lv_line_create(lv_scr_act(), nullptr);
+  lv_obj_set_style_local_line_width(pageIndicatorBase, LV_LINE_PART_MAIN, LV_STATE_DEFAULT, 3);
+  lv_obj_set_style_local_line_color(pageIndicatorBase, LV_LINE_PART_MAIN, LV_STATE_DEFAULT, lv_color_hex(0x111111));
+  lv_line_set_points(pageIndicatorBase, pageIndicatorBasePoints, 2);
+
+  const int16_t indicatorSize = LV_VER_RES / nScreens;
+  const int16_t indicatorPos = indicatorSize * nCurrentScreen;
+
+  pageIndicatorPoints[0].x = LV_HOR_RES - 1;
+  pageIndicatorPoints[0].y = indicatorPos;
+  pageIndicatorPoints[1].x = LV_HOR_RES - 1;
+  pageIndicatorPoints[1].y = indicatorPos + indicatorSize;
+
+  pageIndicator = lv_line_create(lv_scr_act(), nullptr);
+  lv_obj_set_style_local_line_width(pageIndicator, LV_LINE_PART_MAIN, LV_STATE_DEFAULT, 3);
+  lv_obj_set_style_local_line_color(pageIndicator, LV_LINE_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_MAKE(0xb0, 0xb0, 0xb0));
+  lv_line_set_points(pageIndicator, pageIndicatorPoints, 2);
+}
diff --git a/src/displayapp/widgets/PageIndicator.h b/src/displayapp/widgets/PageIndicator.h
new file mode 100644
index 0000000..8484735
--- /dev/null
+++ b/src/displayapp/widgets/PageIndicator.h
@@ -0,0 +1,23 @@
+#pragma once
+#include <lvgl/lvgl.h>
+
+namespace Pinetime {
+  namespace Applications {
+    namespace Widgets {
+      class PageIndicator {
+      public:
+        PageIndicator(uint8_t nCurrentScreen, uint8_t nScreens);
+        void Create();
+
+      private:
+        uint8_t nCurrentScreen;
+        uint8_t nScreens;
+
+        lv_point_t pageIndicatorBasePoints[2];
+        lv_point_t pageIndicatorPoints[2];
+        lv_obj_t* pageIndicatorBase;
+        lv_obj_t* pageIndicator;
+      };
+    }
+  }
+}