Import of the watch repository from Pebble

src/fw/applib/ui/selection_layer.h

@@ -0,0 +1,107 @@
+/*
+ * Copyright 2024 Google LLC
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#pragma once
+
+#include "click.h"
+#include "layer.h"
+#include "property_animation.h"
+#include "applib/fonts/fonts.h"
+
+#define SELECTION_LAYER_DEFAULT_CELL_HEIGHT PBL_IF_RECT_ELSE(34, 40)
+
+#define MAX_SELECTION_LAYER_CELLS 3
+
+typedef char* (*SelectionLayerGetCellText)(unsigned index, void *callback_context);
+
+typedef void (*SelectionLayerCompleteCallback)(void *callback_context);
+
+typedef void (*SelectionLayerIncrementCallback)(unsigned selected_cell_idx, void *callback_context);
+
+typedef void (*SelectionLayerDecrementCallback)(unsigned selected_cell_idx, void *callback_context);
+
+typedef struct SelectionLayerCallbacks {
+  SelectionLayerGetCellText get_cell_text;
+  SelectionLayerCompleteCallback complete;
+  SelectionLayerIncrementCallback increment;
+  SelectionLayerDecrementCallback decrement;
+} SelectionLayerCallbacks;
+
+
+typedef struct SelectionLayer {
+  Layer layer;
+  unsigned num_cells;
+  unsigned cell_widths[MAX_SELECTION_LAYER_CELLS];
+  unsigned cell_padding;
+  unsigned selected_cell_idx;
+
+  // If is_active = false the the selected cell will become invalid, and any clicks will be ignored
+  bool is_active;
+
+  GFont font;
+  GColor inactive_background_color;
+  GColor active_background_color;
+
+  SelectionLayerCallbacks callbacks;
+  void *callback_context;
+
+  // Animation stuff
+  Animation *value_change_animation;
+  bool bump_is_upwards;
+  unsigned bump_text_anim_progress;
+  AnimationImplementation bump_text_impl;
+  unsigned bump_settle_anim_progress;
+  AnimationImplementation bump_settle_anim_impl;
+
+  Animation *next_cell_animation;
+  unsigned slide_amin_progress;
+  AnimationImplementation slide_amin_impl;
+  unsigned slide_settle_anim_progress;
+  AnimationImplementation slide_settle_anim_impl;
+} SelectionLayer;
+
+
+
+void selection_layer_init(SelectionLayer *selection_layer, const GRect *frame, unsigned num_cells);
+
+SelectionLayer* selection_layer_create(GRect frame, unsigned num_cells);
+
+void selection_layer_deinit(SelectionLayer* selection_layer);
+
+void selection_layer_destroy(SelectionLayer* selection_layer);
+
+void selection_layer_set_cell_width(SelectionLayer *selection_layer,
+                                    unsigned cell_idx, unsigned width);
+
+void selection_layer_set_font(SelectionLayer *selection_layer, GFont font);
+
+void selection_layer_set_inactive_bg_color(SelectionLayer *selection_layer, GColor color);
+
+void selection_layer_set_active_bg_color(SelectionLayer *selection_layer, GColor color);
+
+void selection_layer_set_cell_padding(SelectionLayer *selection_layer, unsigned padding);
+
+// When transitioning from inactive -> active, the selected cell will be index 0
+void selection_layer_set_active(SelectionLayer *selection_layer, bool is_active);
+
+void selection_layer_set_click_config_onto_window(SelectionLayer *selection_layer,
+                                                  struct Window *window);
+
+void selection_layer_set_callbacks(SelectionLayer *selection_layer,
+                                   void *callback_context,
+                                   SelectionLayerCallbacks callbacks);
+
+int selection_layer_default_cell_height(void);