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      1 /*
      2  * Copyright (C) 2011 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 #ifndef RECOVERY_SCREEN_UI_H
     18 #define RECOVERY_SCREEN_UI_H
     19 
     20 #include <pthread.h>
     21 #include <stdio.h>
     22 
     23 #include "ui.h"
     24 #include "minui/minui.h"
     25 
     26 // Implementation of RecoveryUI appropriate for devices with a screen
     27 // (shows an icon + a progress bar, text logging, menu, etc.)
     28 class ScreenRecoveryUI : public RecoveryUI {
     29   public:
     30     ScreenRecoveryUI();
     31 
     32     void Init();
     33     void SetLocale(const char* locale);
     34 
     35     // overall recovery state ("background image")
     36     void SetBackground(Icon icon);
     37     void SetSystemUpdateText(bool security_update);
     38 
     39     // progress indicator
     40     void SetProgressType(ProgressType type);
     41     void ShowProgress(float portion, float seconds);
     42     void SetProgress(float fraction);
     43 
     44     void SetStage(int current, int max);
     45 
     46     // text log
     47     void ShowText(bool visible);
     48     bool IsTextVisible();
     49     bool WasTextEverVisible();
     50 
     51     // printing messages
     52     void Print(const char* fmt, ...) __printflike(2, 3);
     53     void PrintOnScreenOnly(const char* fmt, ...) __printflike(2, 3);
     54     void ShowFile(const char* filename);
     55 
     56     // menu display
     57     void StartMenu(const char* const * headers, const char* const * items,
     58                    int initial_selection);
     59     int SelectMenu(int sel);
     60     void EndMenu();
     61 
     62     void KeyLongPress(int);
     63 
     64     void Redraw();
     65 
     66     enum UIElement {
     67         HEADER, MENU, MENU_SEL_BG, MENU_SEL_BG_ACTIVE, MENU_SEL_FG, LOG, TEXT_FILL, INFO
     68     };
     69     void SetColor(UIElement e);
     70 
     71   protected:
     72     Icon currentIcon;
     73 
     74     const char* locale;
     75     bool intro_done;
     76     int current_frame;
     77 
     78     // The scale factor from dp to pixels. 1.0 for mdpi, 4.0 for xxxhdpi.
     79     float density_;
     80     // True if we should use the large layout.
     81     bool is_large_;
     82 
     83     GRSurface* error_icon;
     84 
     85     GRSurface* erasing_text;
     86     GRSurface* error_text;
     87     GRSurface* installing_text;
     88     GRSurface* no_command_text;
     89 
     90     GRSurface** introFrames;
     91     GRSurface** loopFrames;
     92 
     93     GRSurface* progressBarEmpty;
     94     GRSurface* progressBarFill;
     95     GRSurface* stageMarkerEmpty;
     96     GRSurface* stageMarkerFill;
     97 
     98     ProgressType progressBarType;
     99 
    100     float progressScopeStart, progressScopeSize, progress;
    101     double progressScopeTime, progressScopeDuration;
    102 
    103     // true when both graphics pages are the same (except for the progress bar).
    104     bool pagesIdentical;
    105 
    106     size_t text_cols_, text_rows_;
    107 
    108     // Log text overlay, displayed when a magic key is pressed.
    109     char** text_;
    110     size_t text_col_, text_row_, text_top_;
    111 
    112     bool show_text;
    113     bool show_text_ever;   // has show_text ever been true?
    114 
    115     char** menu_;
    116     const char* const* menu_headers_;
    117     bool show_menu;
    118     int menu_items, menu_sel;
    119 
    120     // An alternate text screen, swapped with 'text_' when we're viewing a log file.
    121     char** file_viewer_text_;
    122 
    123     pthread_t progress_thread_;
    124 
    125     // Number of intro frames and loop frames in the animation.
    126     int intro_frames;
    127     int loop_frames;
    128 
    129     // Number of frames per sec (default: 30) for both parts of the animation.
    130     int animation_fps;
    131 
    132     int stage, max_stage;
    133 
    134     int char_width_;
    135     int char_height_;
    136     pthread_mutex_t updateMutex;
    137     bool rtl_locale;
    138 
    139     void draw_background_locked();
    140     void draw_foreground_locked();
    141     void draw_screen_locked();
    142     void update_screen_locked();
    143     void update_progress_locked();
    144 
    145     GRSurface* GetCurrentFrame();
    146     GRSurface* GetCurrentText();
    147 
    148     static void* ProgressThreadStartRoutine(void* data);
    149     void ProgressThreadLoop();
    150 
    151     void ShowFile(FILE*);
    152     void PrintV(const char*, bool, va_list);
    153     void PutChar(char);
    154     void ClearText();
    155 
    156     void LoadAnimation();
    157     void LoadBitmap(const char* filename, GRSurface** surface);
    158     void LoadLocalizedBitmap(const char* filename, GRSurface** surface);
    159 
    160     int PixelsFromDp(int dp);
    161     int GetAnimationBaseline();
    162     int GetProgressBaseline();
    163     int GetTextBaseline();
    164 
    165     void DrawHorizontalRule(int* y);
    166     void DrawTextLine(int x, int* y, const char* line, bool bold);
    167     void DrawTextLines(int x, int* y, const char* const* lines);
    168 };
    169 
    170 #endif  // RECOVERY_UI_H
    171