recovery: More refactoring of WearUI

This patch performs the following modifications:
- Remove setBackground function, and currentIcon member variable.
- Remove common Progress*, Redraw and EndMenu functions.

Bug: 27407422
Change-Id: Ic3c0e16b67941484c3bc1d04c9b61288e8896808
Signed-off-by: Prashant Malani <pmalani@google.com>

screen_ui.cpp

@@ -51,7 +51,6 @@ static double now() {
 }
 
 ScreenRecoveryUI::ScreenRecoveryUI() :
-    currentIcon(NONE),
     installingFrame(0),
     locale(nullptr),
     rtl_locale(false),
@@ -76,7 +75,8 @@ ScreenRecoveryUI::ScreenRecoveryUI() :
     animation_fps(-1),
     installing_frames(-1),
     stage(-1),
-    max_stage(-1) {
+    max_stage(-1),
+    currentIcon(NONE) {
 
     for (int i = 0; i < 5; i++) {
         backgroundIcon[i] = nullptr;

screen_ui.h

@@ -68,7 +68,6 @@ class ScreenRecoveryUI : public RecoveryUI {
     void SetColor(UIElement e);
 
   private:
-    Icon currentIcon;
     int installingFrame;
     const char* locale;
     bool rtl_locale;
@@ -139,6 +138,8 @@ class ScreenRecoveryUI : public RecoveryUI {
     void LoadBitmap(const char* filename, GRSurface** surface);
     void LoadBitmapArray(const char* filename, int* frames, int* fps, GRSurface*** surface);
     void LoadLocalizedBitmap(const char* filename, GRSurface** surface);
+  protected:
+    Icon currentIcon;
 };
 
 #endif  // RECOVERY_UI_H

wear_ui.cpp

@@ -59,7 +59,6 @@ WearRecoveryUI::WearRecoveryUI() :
     intro_frames(22),
     loop_frames(60),
     animation_fps(30),
-    currentIcon(NONE),
     intro_done(false),
     current_frame(0),
     rtl_locale(false),
@@ -366,57 +365,6 @@ void WearRecoveryUI::Init()
     RecoveryUI::Init();
 }
 
-void WearRecoveryUI::SetBackground(Icon icon)
-{
-    pthread_mutex_lock(&updateMutex);
-    currentIcon = icon;
-    update_screen_locked();
-    pthread_mutex_unlock(&updateMutex);
-}
-
-void WearRecoveryUI::SetProgressType(ProgressType type)
-{
-    pthread_mutex_lock(&updateMutex);
-    if (progressBarType != type) {
-        progressBarType = type;
-    }
-    progressScopeStart = 0;
-    progressScopeSize = 0;
-    progress = 0;
-    update_screen_locked();
-    pthread_mutex_unlock(&updateMutex);
-}
-
-void WearRecoveryUI::ShowProgress(float portion, float seconds)
-{
-    pthread_mutex_lock(&updateMutex);
-    progressBarType = DETERMINATE;
-    progressScopeStart += progressScopeSize;
-    progressScopeSize = portion;
-    progressScopeTime = now();
-    progressScopeDuration = seconds;
-    progress = 0;
-    update_screen_locked();
-    pthread_mutex_unlock(&updateMutex);
-}
-
-void WearRecoveryUI::SetProgress(float fraction)
-{
-    pthread_mutex_lock(&updateMutex);
-    if (fraction < 0.0) fraction = 0.0;
-    if (fraction > 1.0) fraction = 1.0;
-    if (progressBarType == DETERMINATE && fraction > progress) {
-        // Skip updates that aren't visibly different.
-        int width = progress_bar_width;
-        float scale = width * progressScopeSize;
-        if ((int) (progress * scale) != (int) (fraction * scale)) {
-            progress = fraction;
-            update_screen_locked();
-        }
-    }
-    pthread_mutex_unlock(&updateMutex);
-}
-
 void WearRecoveryUI::SetStage(int current, int max)
 {
 }
@@ -499,16 +447,6 @@ int WearRecoveryUI::SelectMenu(int sel) {
     return sel;
 }
 
-void WearRecoveryUI::EndMenu() {
-    int i;
-    pthread_mutex_lock(&updateMutex);
-    if (show_menu > 0 && text_rows > 0 && text_cols > 0) {
-        show_menu = 0;
-        update_screen_locked();
-    }
-    pthread_mutex_unlock(&updateMutex);
-}
-
 bool WearRecoveryUI::IsTextVisible()
 {
     pthread_mutex_lock(&updateMutex);
@@ -539,13 +477,6 @@ void WearRecoveryUI::ShowText(bool visible)
     pthread_mutex_unlock(&updateMutex);
 }
 
-void WearRecoveryUI::Redraw()
-{
-    pthread_mutex_lock(&updateMutex);
-    update_screen_locked();
-    pthread_mutex_unlock(&updateMutex);
-}
-
 void WearRecoveryUI::ShowFile(FILE* fp) {
     std::vector<long> offsets;
     offsets.push_back(ftell(fp));

wear_ui.h

@@ -24,13 +24,6 @@ class WearRecoveryUI : public ScreenRecoveryUI {
     WearRecoveryUI();
 
     void Init();
-    // overall recovery state ("background image")
-    void SetBackground(Icon icon);
-
-    // progress indicator
-    void SetProgressType(ProgressType type);
-    void ShowProgress(float portion, float seconds);
-    void SetProgress(float fraction);
 
     void SetStage(int current, int max);
 
@@ -49,9 +42,6 @@ class WearRecoveryUI : public ScreenRecoveryUI {
     void StartMenu(const char* const * headers, const char* const * items,
                            int initial_selection);
     int SelectMenu(int sel);
-    void EndMenu();
-
-    void Redraw();
 
     enum UIElement { HEADER, MENU, MENU_SEL_BG, MENU_SEL_FG, LOG, TEXT_FILL };
     virtual void SetColor(UIElement e);
@@ -78,8 +68,6 @@ class WearRecoveryUI : public ScreenRecoveryUI {
     int animation_fps;
 
   private:
-    Icon currentIcon;
-
     bool intro_done;
 
     int current_frame;