tdlight/td/telegram/BackgroundType.cpp

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//
// Copyright Aliaksei Levin (levlam@telegram.org), Arseny Smirnov (arseny30@gmail.com) 2014-2019
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#include "td/telegram/BackgroundType.h"
#include "td/utils/logging.h"
#include "td/utils/Slice.h"
namespace td {
static string get_color_hex_string(int32 color) {
string result;
for (int i = 20; i >= 0; i -= 4) {
result += "0123456789abcdef"[(color >> i) & 0xf];
}
return result;
}
static BackgroundFill get_background_fill(const td_api::BackgroundFill *fill) {
CHECK(fill != nullptr);
switch (fill->get_id()) {
case td_api::backgroundFillSolid::ID: {
auto solid = static_cast<const td_api::backgroundFillSolid *>(fill);
return BackgroundFill(solid->color_);
}
case td_api::backgroundFillGradient::ID: {
auto gradient = static_cast<const td_api::backgroundFillGradient *>(fill);
return BackgroundFill(gradient->top_color_, gradient->bottom_color_, gradient->rotation_angle_);
}
default:
UNREACHABLE();
return {};
}
}
static string get_background_fill_color_hex_string(const BackgroundFill &fill, bool is_first) {
if (fill.is_solid()) {
return get_color_hex_string(fill.top_color);
} else {
string colors = PSTRING() << get_color_hex_string(fill.top_color) << '-' << get_color_hex_string(fill.bottom_color);
if (fill.rotation_angle != 0) {
colors += (PSTRING() << (is_first ? '?' : '&') << "rotation=" << fill.rotation_angle);
}
return colors;
}
}
static bool is_valid_color(int32 color) {
return 0 <= color && color <= 0xFFFFFF;
}
static bool is_valid_intensity(int32 intensity) {
return 0 <= intensity && intensity <= 100;
}
int64 BackgroundFill::get_id() const {
CHECK(is_valid_color(top_color));
CHECK(is_valid_color(bottom_color));
CHECK(is_valid_rotation_angle(rotation_angle));
if (is_solid()) {
return static_cast<int64>(top_color) + 1;
}
return (rotation_angle / 45) * 0x1000001000001 + (static_cast<int64>(top_color) << 24) + bottom_color + (1 << 24) + 1;
}
bool BackgroundFill::is_valid_id(int64 id) {
return 0 < id && id < 0x8000008000008;
}
bool operator==(const BackgroundFill &lhs, const BackgroundFill &rhs) {
return lhs.top_color == rhs.top_color && lhs.bottom_color == rhs.bottom_color &&
lhs.rotation_angle == rhs.rotation_angle;
}
string BackgroundType::get_link() const {
string mode;
if (is_blurred) {
mode = "blur";
}
if (is_moving) {
if (!mode.empty()) {
mode += '+';
}
mode += "motion";
}
switch (type) {
case BackgroundType::Type::Wallpaper: {
if (!mode.empty()) {
return PSTRING() << "mode=" << mode;
}
return string();
}
case BackgroundType::Type::Pattern: {
string link = PSTRING() << "intensity=" << intensity
<< "&bg_color=" << get_background_fill_color_hex_string(fill, false);
if (!mode.empty()) {
link += "&mode=";
link += mode;
}
return link;
}
case BackgroundType::Type::Fill:
return get_background_fill_color_hex_string(fill, true);
default:
UNREACHABLE();
return string();
}
}
bool operator==(const BackgroundType &lhs, const BackgroundType &rhs) {
return lhs.type == rhs.type && lhs.is_blurred == rhs.is_blurred && lhs.is_moving == rhs.is_moving &&
lhs.intensity == rhs.intensity && lhs.fill == rhs.fill;
}
static StringBuilder &operator<<(StringBuilder &string_builder, const BackgroundType::Type &type) {
switch (type) {
case BackgroundType::Type::Wallpaper:
return string_builder << "Wallpaper";
case BackgroundType::Type::Pattern:
return string_builder << "Pattern";
case BackgroundType::Type::Fill:
return string_builder << "Fill";
default:
UNREACHABLE();
return string_builder;
}
}
StringBuilder &operator<<(StringBuilder &string_builder, const BackgroundType &type) {
return string_builder << "type " << type.type << '[' << type.get_link() << ']';
}
Result<BackgroundType> get_background_type(const td_api::BackgroundType *type) {
if (type == nullptr) {
return Status::Error(400, "Type must not be empty");
}
BackgroundType result;
switch (type->get_id()) {
case td_api::backgroundTypeWallpaper::ID: {
auto wallpaper = static_cast<const td_api::backgroundTypeWallpaper *>(type);
result = BackgroundType(wallpaper->is_blurred_, wallpaper->is_moving_);
break;
}
case td_api::backgroundTypePattern::ID: {
auto pattern = static_cast<const td_api::backgroundTypePattern *>(type);
if (pattern->fill_ == nullptr) {
return Status::Error(400, "Fill info must not be empty");
}
result = BackgroundType(pattern->is_moving_, get_background_fill(pattern->fill_.get()), pattern->intensity_);
break;
}
case td_api::backgroundTypeFill::ID: {
auto fill = static_cast<const td_api::backgroundTypeFill *>(type);
if (fill->fill_ == nullptr) {
return Status::Error(400, "Fill info must not be empty");
}
result = BackgroundType(get_background_fill(fill->fill_.get()));
break;
}
default:
UNREACHABLE();
}
if (!is_valid_intensity(result.intensity)) {
return Status::Error(400, "Wrong intensity value");
}
if (!is_valid_color(result.fill.top_color)) {
return Status::Error(400, result.fill.is_solid() ? Slice("Wrong color value") : ("Wrong top color value"));
}
if (!is_valid_color(result.fill.bottom_color)) {
return Status::Error(400, "Wrong bottom color value");
}
if (!BackgroundFill::is_valid_rotation_angle(result.fill.rotation_angle)) {
return Status::Error(400, "Wrong rotation angle value");
}
return result;
}
BackgroundType get_background_type(bool is_pattern,
telegram_api::object_ptr<telegram_api::wallPaperSettings> settings) {
bool is_blurred = false;
bool is_moving = false;
BackgroundFill fill;
int32 intensity = 0;
if (settings) {
auto flags = settings->flags_;
is_blurred = (flags & telegram_api::wallPaperSettings::BLUR_MASK) != 0;
is_moving = (flags & telegram_api::wallPaperSettings::MOTION_MASK) != 0;
int32 color = 0;
if ((flags & telegram_api::wallPaperSettings::BACKGROUND_COLOR_MASK) != 0) {
color = settings->background_color_;
if (!is_valid_color(color)) {
LOG(ERROR) << "Receive " << to_string(settings);
color = 0;
}
}
if ((flags & telegram_api::wallPaperSettings::SECOND_BACKGROUND_COLOR_MASK) != 0) {
int32 second_color = settings->background_color_;
if (!is_valid_color(second_color)) {
LOG(ERROR) << "Receive " << to_string(settings);
second_color = 0;
}
int32 rotation_angle = settings->rotation_;
if (!BackgroundFill::is_valid_rotation_angle(rotation_angle)) {
LOG(ERROR) << "Receive " << to_string(settings);
rotation_angle = 0;
}
fill = BackgroundFill(color, second_color, rotation_angle);
} else {
fill = BackgroundFill(color);
}
if ((flags & telegram_api::wallPaperSettings::INTENSITY_MASK) != 0) {
intensity = settings->intensity_;
if (!is_valid_intensity(intensity)) {
LOG(ERROR) << "Receive " << to_string(settings);
intensity = 0;
}
}
}
if (is_pattern) {
return BackgroundType(is_moving, fill, intensity);
} else {
return BackgroundType(is_blurred, is_moving);
}
}
static td_api::object_ptr<td_api::BackgroundFill> get_background_fill_object(const BackgroundFill &fill) {
if (fill.is_solid()) {
return td_api::make_object<td_api::backgroundFillSolid>(fill.top_color);
}
return td_api::make_object<td_api::backgroundFillGradient>(fill.top_color, fill.bottom_color, fill.rotation_angle);
}
td_api::object_ptr<td_api::BackgroundType> get_background_type_object(const BackgroundType &type) {
switch (type.type) {
case BackgroundType::Type::Wallpaper:
return td_api::make_object<td_api::backgroundTypeWallpaper>(type.is_blurred, type.is_moving);
case BackgroundType::Type::Pattern:
return td_api::make_object<td_api::backgroundTypePattern>(get_background_fill_object(type.fill), type.intensity,
type.is_moving);
case BackgroundType::Type::Fill:
return td_api::make_object<td_api::backgroundTypeFill>(get_background_fill_object(type.fill));
default:
UNREACHABLE();
return nullptr;
}
}
telegram_api::object_ptr<telegram_api::wallPaperSettings> get_input_wallpaper_settings(const BackgroundType &type) {
int32 flags = 0;
if (type.is_blurred) {
flags |= telegram_api::wallPaperSettings::BLUR_MASK;
}
if (type.is_moving) {
flags |= telegram_api::wallPaperSettings::MOTION_MASK;
}
if (type.fill.top_color != 0 || type.fill.bottom_color != 0) {
flags |= telegram_api::wallPaperSettings::BACKGROUND_COLOR_MASK;
}
if (!type.fill.is_solid()) {
flags |= telegram_api::wallPaperSettings::SECOND_BACKGROUND_COLOR_MASK;
}
if (type.intensity) {
flags |= telegram_api::wallPaperSettings::INTENSITY_MASK;
}
if (type.is_server()) {
return telegram_api::make_object<telegram_api::wallPaperSettings>(flags, false /*ignored*/, false /*ignored*/,
type.fill.top_color, type.fill.bottom_color,
type.intensity, type.fill.rotation_angle);
}
UNREACHABLE();
return nullptr;
}
} // namespace td