tdesktop/Telegram/SourceFiles/ui/empty_userpic.cpp

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "ui/empty_userpic.h"
#include "data/data_peer.h"
#include "ui/emoji_config.h"
#include "ui/effects/animation_value.h"
#include "app.h"
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#include "styles/style_chat.h"
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#include "styles/style_dialogs.h"
namespace Ui {
namespace {
void PaintSavedMessagesInner(
Painter &p,
int x,
int y,
int size,
const style::color &bg,
const style::color &fg) {
// |<----width----->|
//
// XXXXXXXXXXXXXXXXXX ---
// X X |
// X X |
// X X |
// X X height
// X XX X | ---
// X XX XX X | |
// X XX XX X | add
// X XX XX X | |
// XX XX --- ---
const auto thinkness = std::round(size * 0.055);
const auto increment = int(thinkness) % 2 + (size % 2);
const auto width = std::round(size * 0.15) * 2 + increment;
const auto height = std::round(size * 0.19) * 2 + increment;
const auto add = std::round(size * 0.064);
const auto left = x + (size - width) / 2;
const auto top = y + (size - height) / 2;
const auto right = left + width;
const auto bottom = top + height;
const auto middle = (left + right) / 2;
const auto half = (top + bottom) / 2;
p.setBrush(Qt::NoBrush);
auto pen = fg->p;
pen.setWidthF(thinkness);
pen.setCapStyle(Qt::FlatCap);
{
// XXXXXXXXXXXXXXXXXX
// X X
// X X
// X X
// X X
// X X
pen.setJoinStyle(Qt::RoundJoin);
p.setPen(pen);
QPainterPath path;
path.moveTo(left, half);
path.lineTo(left, top);
path.lineTo(right, top);
path.lineTo(right, half);
p.drawPath(path);
}
{
// X X
// X XX X
// X XX XX X
// X XX XX X
// X XX XX X
// XX XX
pen.setJoinStyle(Qt::MiterJoin);
p.setPen(pen);
QPainterPath path;
path.moveTo(left, half);
path.lineTo(left, bottom);
path.lineTo(middle, bottom - add);
path.lineTo(right, bottom);
path.lineTo(right, half);
p.drawPath(path);
}
}
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void PaintRepliesMessagesInner(
Painter &p,
int x,
int y,
int size,
const style::color &bg,
const style::color &fg) {
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if (size == st::dialogsPhotoSize) {
const auto rect = QRect{ x, y, size, size };
st::dialogsRepliesUserpic.paintInCenter(
p,
rect,
fg->c);
} else {
p.save();
const auto ratio = size / float64(st::dialogsPhotoSize);
p.translate(x + size / 2., y + size / 2.);
p.scale(ratio, ratio);
const auto skip = st::dialogsPhotoSize;
const auto rect = QRect{ -skip, -skip, 2 * skip, 2 * skip };
st::dialogsRepliesUserpic.paintInCenter(
p,
rect,
fg->c);
p.restore();
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}
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}
template <typename Callback>
[[nodiscard]] QPixmap Generate(int size, Callback callback) {
auto result = QImage(
QSize(size, size) * cIntRetinaFactor(),
QImage::Format_ARGB32_Premultiplied);
result.setDevicePixelRatio(cRetinaFactor());
result.fill(Qt::transparent);
{
Painter p(&result);
callback(p);
}
return App::pixmapFromImageInPlace(std::move(result));
}
} // namespace
EmptyUserpic::EmptyUserpic(const style::color &color, const QString &name)
: _color(color) {
fillString(name);
}
template <typename Callback>
void EmptyUserpic::paint(
Painter &p,
int x,
int y,
int outerWidth,
int size,
Callback paintBackground) const {
x = rtl() ? (outerWidth - x - size) : x;
const auto fontsize = (size * 13) / 33;
auto font = st::historyPeerUserpicFont->f;
font.setPixelSize(fontsize);
PainterHighQualityEnabler hq(p);
p.setBrush(_color);
p.setPen(Qt::NoPen);
paintBackground();
p.setFont(font);
p.setBrush(Qt::NoBrush);
p.setPen(st::historyPeerUserpicFg);
p.drawText(QRect(x, y, size, size), _string, QTextOption(style::al_center));
}
void EmptyUserpic::paint(
Painter &p,
int x,
int y,
int outerWidth,
int size) const {
paint(p, x, y, outerWidth, size, [&p, x, y, size] {
p.drawEllipse(x, y, size, size);
});
}
void EmptyUserpic::paintRounded(Painter &p, int x, int y, int outerWidth, int size) const {
paint(p, x, y, outerWidth, size, [&p, x, y, size] {
p.drawRoundedRect(x, y, size, size, st::buttonRadius, st::buttonRadius);
});
}
void EmptyUserpic::paintSquare(Painter &p, int x, int y, int outerWidth, int size) const {
paint(p, x, y, outerWidth, size, [&p, x, y, size] {
p.fillRect(x, y, size, size, p.brush());
});
}
void EmptyUserpic::PaintSavedMessages(
Painter &p,
int x,
int y,
int outerWidth,
int size) {
const auto &bg = st::historyPeerSavedMessagesBg;
const auto &fg = st::historyPeerUserpicFg;
PaintSavedMessages(p, x, y, outerWidth, size, bg, fg);
}
void EmptyUserpic::PaintSavedMessagesRounded(
Painter &p,
int x,
int y,
int outerWidth,
int size) {
const auto &bg = st::historyPeerSavedMessagesBg;
const auto &fg = st::historyPeerUserpicFg;
PaintSavedMessagesRounded(p, x, y, outerWidth, size, bg, fg);
}
void EmptyUserpic::PaintSavedMessages(
Painter &p,
int x,
int y,
int outerWidth,
int size,
const style::color &bg,
const style::color &fg) {
x = rtl() ? (outerWidth - x - size) : x;
PainterHighQualityEnabler hq(p);
p.setBrush(bg);
p.setPen(Qt::NoPen);
p.drawEllipse(x, y, size, size);
PaintSavedMessagesInner(p, x, y, size, bg, fg);
}
void EmptyUserpic::PaintSavedMessagesRounded(
Painter &p,
int x,
int y,
int outerWidth,
int size,
const style::color &bg,
const style::color &fg) {
x = rtl() ? (outerWidth - x - size) : x;
PainterHighQualityEnabler hq(p);
p.setBrush(bg);
p.setPen(Qt::NoPen);
p.drawRoundedRect(x, y, size, size, st::buttonRadius, st::buttonRadius);
PaintSavedMessagesInner(p, x, y, size, bg, fg);
}
QPixmap EmptyUserpic::GenerateSavedMessages(int size) {
return Generate(size, [&](Painter &p) {
PaintSavedMessages(p, 0, 0, size, size);
});
}
QPixmap EmptyUserpic::GenerateSavedMessagesRounded(int size) {
return Generate(size, [&](Painter &p) {
PaintSavedMessagesRounded(p, 0, 0, size, size);
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});
}
void EmptyUserpic::PaintRepliesMessages(
Painter &p,
int x,
int y,
int outerWidth,
int size) {
const auto &bg = st::historyPeerSavedMessagesBg;
const auto &fg = st::historyPeerUserpicFg;
PaintRepliesMessages(p, x, y, outerWidth, size, bg, fg);
}
void EmptyUserpic::PaintRepliesMessagesRounded(
Painter &p,
int x,
int y,
int outerWidth,
int size) {
const auto &bg = st::historyPeerSavedMessagesBg;
const auto &fg = st::historyPeerUserpicFg;
PaintRepliesMessagesRounded(p, x, y, outerWidth, size, bg, fg);
}
void EmptyUserpic::PaintRepliesMessages(
Painter &p,
int x,
int y,
int outerWidth,
int size,
const style::color &bg,
const style::color &fg) {
x = rtl() ? (outerWidth - x - size) : x;
PainterHighQualityEnabler hq(p);
p.setBrush(bg);
p.setPen(Qt::NoPen);
p.drawEllipse(x, y, size, size);
PaintRepliesMessagesInner(p, x, y, size, bg, fg);
}
void EmptyUserpic::PaintRepliesMessagesRounded(
Painter &p,
int x,
int y,
int outerWidth,
int size,
const style::color &bg,
const style::color &fg) {
x = rtl() ? (outerWidth - x - size) : x;
PainterHighQualityEnabler hq(p);
p.setBrush(bg);
p.setPen(Qt::NoPen);
p.drawRoundedRect(x, y, size, size, st::buttonRadius, st::buttonRadius);
PaintRepliesMessagesInner(p, x, y, size, bg, fg);
}
QPixmap EmptyUserpic::GenerateRepliesMessages(int size) {
return Generate(size, [&](Painter &p) {
PaintRepliesMessages(p, 0, 0, size, size);
});
}
QPixmap EmptyUserpic::GenerateRepliesMessagesRounded(int size) {
return Generate(size, [&](Painter &p) {
PaintRepliesMessagesRounded(p, 0, 0, size, size);
});
}
InMemoryKey EmptyUserpic::uniqueKey() const {
const auto first = (uint64(0xFFFFFFFFU) << 32)
| anim::getPremultiplied(_color->c);
auto second = uint64(0);
memcpy(&second, _string.constData(), qMin(sizeof(second), _string.size() * sizeof(QChar)));
return InMemoryKey(first, second);
}
QPixmap EmptyUserpic::generate(int size) {
auto result = QImage(QSize(size, size) * cIntRetinaFactor(), QImage::Format_ARGB32_Premultiplied);
result.setDevicePixelRatio(cRetinaFactor());
result.fill(Qt::transparent);
{
Painter p(&result);
paint(p, 0, 0, size, size);
}
return App::pixmapFromImageInPlace(std::move(result));
}
void EmptyUserpic::fillString(const QString &name) {
QList<QString> letters;
QList<int> levels;
auto level = 0;
auto letterFound = false;
auto ch = name.constData(), end = ch + name.size();
while (ch != end) {
auto emojiLength = 0;
if (auto emoji = Ui::Emoji::Find(ch, end, &emojiLength)) {
ch += emojiLength;
} else if (ch->isHighSurrogate()) {
++ch;
if (ch != end && ch->isLowSurrogate()) {
++ch;
}
} else if (!letterFound && ch->isLetterOrNumber()) {
letterFound = true;
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if (ch + 1 != end && Ui::Text::IsDiac(*(ch + 1))) {
letters.push_back(QString(ch, 2));
levels.push_back(level);
++ch;
} else {
letters.push_back(QString(ch, 1));
levels.push_back(level);
}
++ch;
} else {
if (*ch == ' ') {
level = 0;
letterFound = false;
} else if (letterFound && *ch == '-') {
level = 1;
letterFound = true;
}
++ch;
}
}
// We prefer the second letter to be after ' ', but it can also be after '-'.
_string = QString();
if (!letters.isEmpty()) {
_string += letters.front();
auto bestIndex = 0;
auto bestLevel = 2;
for (auto i = letters.size(); i != 1;) {
if (levels[--i] < bestLevel) {
bestIndex = i;
bestLevel = levels[i];
}
}
if (bestIndex > 0) {
_string += letters[bestIndex];
}
}
_string = _string.toUpper();
}
EmptyUserpic::~EmptyUserpic() = default;
} // namespace Ui