wear_ui.h

/*
 * Copyright (C) 2014 The Android Open Source Project
 *
 * 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.
 */

#ifndef RECOVERY_WEAR_UI_H
#define RECOVERY_WEAR_UI_H

#include "screen_ui.h"

#include <string>

class WearRecoveryUI : public ScreenRecoveryUI {
 public:
  WearRecoveryUI();

  bool Init(const std::string& locale) override;

  void SetStage(int current, int max) override;

  // printing messages
  void Print(const char* fmt, ...) override;
  void PrintOnScreenOnly(const char* fmt, ...) override __printflike(2, 3);
  void ShowFile(const char* filename) override;
  void ShowFile(FILE* fp) override;

  // menu display
  void StartMenu(const char* const* headers, const char* const* items,
                 int initial_selection) override;
  int SelectMenu(int sel) override;

 protected:
  // progress bar vertical position, it's centered horizontally
  int progress_bar_y;

  // outer of window
  int outer_height, outer_width;

  // Unusable rows when displaying the recovery menu, including the lines for headers (Android
  // Recovery, build id and etc) and the bottom lines that may otherwise go out of the screen.
  int menu_unusable_rows;

  int GetProgressBaseline() const override;

  bool InitTextParams() override;

  void update_progress_locked() override;

  void PrintV(const char*, bool, va_list) override;

 private:
  GRSurface* backgroundIcon[5];

  static const int kMaxCols = 96;
  static const int kMaxRows = 96;

  // Number of text rows seen on screen
  int visible_text_rows;

  const char* const* menu_headers_;
  int menu_start, menu_end;

  pthread_t progress_t;

  void draw_background_locked() override;
  void draw_screen_locked() override;
  void draw_progress_locked();

  void PutChar(char);
  void ClearText();
};

#endif  // RECOVERY_WEAR_UI_H