platform_bootable_recovery/wear_ui.cpp
Tianjie Xu 66dbf63080 Implement the graphic menus
As we plan to show localized rescue party dialogs under recovery mode
with pre-generated images, it becomes necessary to show the menu headers
and items with images.

This cl converts the menu class to a interface and derived TextMenu &
GraphicMenu classes. And the GraphicMenu uses GRSurfaces* as the menu header
and a list of GRSurfaces* as menu items.

Moreover, factor out the Draw* functions in the ScreenUI into a separate
DrawInterface. Therefore, the Menu class can access these draw functions and
use them to implement the DrawHeaders & DrawItems neatly.

Bug: 74397117
Test: unittests pass, boot into recovery and check menu
Change-Id: I95cee30f3e5eb666eb6fbcdfc873a7260fc177c1
2018-10-12 17:18:50 -07:00

107 lines
3.6 KiB
C++

/*
* 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.
*/
#include "wear_ui.h"
#include <string.h>
#include <string>
#include <vector>
#include <android-base/properties.h>
#include <android-base/strings.h>
#include <minui/minui.h>
constexpr int kDefaultProgressBarBaseline = 259;
constexpr int kDefaultMenuUnusableRows = 9;
WearRecoveryUI::WearRecoveryUI()
: ScreenRecoveryUI(true),
progress_bar_baseline_(android::base::GetIntProperty("ro.recovery.ui.progress_bar_baseline",
kDefaultProgressBarBaseline)),
menu_unusable_rows_(android::base::GetIntProperty("ro.recovery.ui.menu_unusable_rows",
kDefaultMenuUnusableRows)) {
// TODO: menu_unusable_rows_ should be computed based on the lines in draw_screen_locked().
touch_screen_allowed_ = true;
}
int WearRecoveryUI::GetProgressBaseline() const {
return progress_bar_baseline_;
}
// Draw background frame on the screen. Does not flip pages.
// Should only be called with updateMutex locked.
// TODO merge drawing routines with screen_ui
void WearRecoveryUI::draw_background_locked() {
pagesIdentical = false;
gr_color(0, 0, 0, 255);
gr_fill(0, 0, gr_fb_width(), gr_fb_height());
if (currentIcon != NONE) {
GRSurface* frame = GetCurrentFrame();
int frame_width = gr_get_width(frame);
int frame_height = gr_get_height(frame);
int frame_x = (gr_fb_width() - frame_width) / 2;
int frame_y = (gr_fb_height() - frame_height) / 2;
gr_blit(frame, 0, 0, frame_width, frame_height, frame_x, frame_y);
// Draw recovery text on screen above progress bar.
GRSurface* text = GetCurrentText();
int text_x = (ScreenWidth() - gr_get_width(text)) / 2;
int text_y = GetProgressBaseline() - gr_get_height(text) - 10;
gr_color(255, 255, 255, 255);
gr_texticon(text_x, text_y, text);
}
}
void WearRecoveryUI::draw_screen_locked() {
draw_background_locked();
if (!show_text) {
draw_foreground_locked();
} else {
SetColor(UIElement::TEXT_FILL);
gr_fill(0, 0, gr_fb_width(), gr_fb_height());
// clang-format off
static std::vector<std::string> SWIPE_HELP = {
"Swipe up/down to move.",
"Swipe left/right to select.",
"",
};
// clang-format on
draw_menu_and_text_buffer_locked(SWIPE_HELP);
}
}
// TODO merge drawing routines with screen_ui
void WearRecoveryUI::update_progress_locked() {
draw_screen_locked();
gr_flip();
}
void WearRecoveryUI::SetStage(int /* current */, int /* max */) {}
void WearRecoveryUI::StartMenu(const std::vector<std::string>& headers,
const std::vector<std::string>& items, size_t initial_selection) {
std::lock_guard<std::mutex> lg(updateMutex);
if (text_rows_ > 0 && text_cols_ > 0) {
menu_ = std::make_unique<TextMenu>(scrollable_menu_, text_rows_ - menu_unusable_rows_ - 1,
text_cols_ - 1, headers, items, initial_selection,
char_height_, *this);
update_screen_locked();
}
}