examples/devices/emulator/device_parameters.cpp

/*
 * Copyright 2020, 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 <device_parameters.h>
#include <optional>

namespace devices {

using namespace teeui;

int getDisplayCount() {
    return 1;
}

std::optional<context<ConUIParameters>> getDisplayContext(int display_index,
                                                          bool magnified) {
    if (display_index != 0) {
        return std::nullopt;
    }

    context<ConUIParameters> ctx(6.45211, 400.0 / 412.0);

    ctx.setParam<RightEdgeOfScreen>(400_px);
    ctx.setParam<BottomOfScreen>(800_px);
    ctx.setParam<PowerButtonTop>(20.26_mm);
    ctx.setParam<PowerButtonBottom>(30.26_mm);
    ctx.setParam<VolUpButtonTop>(40.26_mm);
    ctx.setParam<VolUpButtonBottom>(50.26_mm);

    if (magnified) {
        ctx.setParam<DefaultFontSize>(18_dp);
        ctx.setParam<BodyFontSize>(20_dp);
    } else {
        ctx.setParam<DefaultFontSize>(14_dp);
        ctx.setParam<BodyFontSize>(16_dp);
    }

    return ctx;
}

std::optional<std::unique_ptr<layouts::ILayout>> getDisplayLayout(
        int display_index,
        bool inverted,
        const context<ConUIParameters>& ctx) {
    if (display_index != 0) {
        return std::nullopt;
    }

    return std::make_unique<teeui::layouts::DisplayLayout>(inverted, ctx);
}

}  // namespace devices