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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 <string>
     24 
     25 #include "ui.h"
     26 
     27 // From minui/minui.h.
     28 struct GRSurface;
     29 
     30 // Implementation of RecoveryUI appropriate for devices with a screen
     31 // (shows an icon + a progress bar, text logging, menu, etc.)
     32 class ScreenRecoveryUI : public RecoveryUI {
     33   public:
     34     ScreenRecoveryUI();
     35 
     36     bool Init(const std::string& locale) override;
     37 
     38     // overall recovery state ("background image")
     39     void SetBackground(Icon icon);
     40     void SetSystemUpdateText(bool security_update);
     41 
     42     // progress indicator
     43     void SetProgressType(ProgressType type) override;
     44     void ShowProgress(float portion, float seconds) override;
     45     void SetProgress(float fraction) override;
     46 
     47     void SetStage(int current, int max) override;
     48 
     49     // text log
     50     void ShowText(bool visible) override;
     51     bool IsTextVisible() override;
     52     bool WasTextEverVisible() override;
     53 
     54     // printing messages
     55     void Print(const char* fmt, ...) __printflike(2, 3);
     56     void PrintOnScreenOnly(const char* fmt, ...) __printflike(2, 3);
     57     void ShowFile(const char* filename);
     58 
     59     // menu display
     60     void StartMenu(const char* const * headers, const char* const * items,
     61                    int initial_selection);
     62     int SelectMenu(int sel);
     63     void EndMenu();
     64 
     65     void KeyLongPress(int);
     66 
     67     void Redraw();
     68 
     69     enum UIElement {
     70         HEADER, MENU, MENU_SEL_BG, MENU_SEL_BG_ACTIVE, MENU_SEL_FG, LOG, TEXT_FILL, INFO
     71     };
     72     void SetColor(UIElement e);
     73 
     74   protected:
     75     Icon currentIcon;
     76 
     77     // The scale factor from dp to pixels. 1.0 for mdpi, 4.0 for xxxhdpi.
     78     float density_;
     79     // The layout to use.
     80     int layout_;
     81 
     82     GRSurface* error_icon;
     83 
     84     GRSurface* erasing_text;
     85     GRSurface* error_text;
     86     GRSurface* installing_text;
     87     GRSurface* no_command_text;
     88 
     89     GRSurface** introFrames;
     90     GRSurface** loopFrames;
     91 
     92     GRSurface* progressBarEmpty;
     93     GRSurface* progressBarFill;
     94     GRSurface* stageMarkerEmpty;
     95     GRSurface* stageMarkerFill;
     96 
     97     ProgressType progressBarType;
     98 
     99     float progressScopeStart, progressScopeSize, progress;
    100     double progressScopeTime, progressScopeDuration;
    101 
    102     // true when both graphics pages are the same (except for the progress bar).
    103     bool pagesIdentical;
    104 
    105     size_t text_cols_, text_rows_;
    106 
    107     // Log text overlay, displayed when a magic key is pressed.
    108     char** text_;
    109     size_t text_col_, text_row_, text_top_;
    110 
    111     bool show_text;
    112     bool show_text_ever;   // has show_text ever been true?
    113 
    114     char** menu_;
    115     const char* const* menu_headers_;
    116     bool show_menu;
    117     int menu_items, menu_sel;
    118 
    119     // An alternate text screen, swapped with 'text_' when we're viewing a log file.
    120     char** file_viewer_text_;
    121 
    122     pthread_t progress_thread_;
    123 
    124     // Number of intro frames and loop frames in the animation.
    125     size_t intro_frames;
    126     size_t loop_frames;
    127 
    128     size_t current_frame;
    129     bool intro_done;
    130 
    131     // Number of frames per sec (default: 30) for both parts of the animation.
    132     int animation_fps;
    133 
    134     int stage, max_stage;
    135 
    136     int char_width_;
    137     int char_height_;
    138     pthread_mutex_t updateMutex;
    139 
    140     virtual bool InitTextParams();
    141 
    142     virtual void draw_background_locked();
    143     virtual void draw_foreground_locked();
    144     virtual void draw_screen_locked();
    145     virtual void update_screen_locked();
    146     virtual void update_progress_locked();
    147 
    148     GRSurface* GetCurrentFrame();
    149     GRSurface* GetCurrentText();
    150 
    151     static void* ProgressThreadStartRoutine(void* data);
    152     void ProgressThreadLoop();
    153 
    154     virtual void ShowFile(FILE*);
    155     virtual void PrintV(const char*, bool, va_list);
    156     void PutChar(char);
    157     void ClearText();
    158 
    159     void LoadAnimation();
    160     void LoadBitmap(const char* filename, GRSurface** surface);
    161     void LoadLocalizedBitmap(const char* filename, GRSurface** surface);
    162 
    163     int PixelsFromDp(int dp) const;
    164     virtual int GetAnimationBaseline();
    165     virtual int GetProgressBaseline();
    166     virtual int GetTextBaseline();
    167 
    168     void DrawHorizontalRule(int* y);
    169     void DrawTextLine(int x, int* y, const char* line, bool bold) const;
    170     void DrawTextLines(int x, int* y, const char* const* lines) const;
    171 };
    172 
    173 #endif  // RECOVERY_UI_H
    174