149 lines
3.6 KiB
C++
149 lines
3.6 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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namespace Ui {
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class ChatTheme;
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class ChatStyle;
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enum class BubbleCornerRounding : uchar {
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None,
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Tail,
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Small,
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Large,
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};
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struct BubbleRounding {
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BubbleCornerRounding topLeft : 2 = BubbleCornerRounding();
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BubbleCornerRounding topRight : 2 = BubbleCornerRounding();
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BubbleCornerRounding bottomLeft : 2 = BubbleCornerRounding();
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BubbleCornerRounding bottomRight : 2 = BubbleCornerRounding();
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struct ConstProxy {
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constexpr ConstProxy(
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not_null<const BubbleRounding*> that,
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int index) noexcept
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: that(that)
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, index(index) {
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Expects(index >= 0 && index < 4);
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}
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constexpr operator BubbleCornerRounding() const noexcept {
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switch (index) {
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case 0: return that->topLeft;
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case 1: return that->topRight;
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case 2: return that->bottomLeft;
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case 3: return that->bottomRight;
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}
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Unexpected("Index value in BubbleRounding::ConstProxy.");
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}
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not_null<const BubbleRounding*> that;
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int index = 0;
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};
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struct Proxy : ConstProxy {
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constexpr Proxy(not_null<BubbleRounding*> that, int index) noexcept
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: ConstProxy(that, index) {
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}
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using ConstProxy::operator BubbleCornerRounding;
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constexpr Proxy &operator=(BubbleCornerRounding value) noexcept {
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const auto nonconst = const_cast<BubbleRounding*>(that.get());
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switch (index) {
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case 0: nonconst->topLeft = value; break;
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case 1: nonconst->topRight = value; break;
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case 2: nonconst->bottomLeft = value; break;
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case 3: nonconst->bottomRight = value; break;
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}
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return *this;
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}
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};
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[[nodiscard]] constexpr ConstProxy operator[](int index) const {
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return { this, index };
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}
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[[nodiscard]] constexpr Proxy operator[](int index) {
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return { this, index };
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}
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[[nodiscard]] uchar key() const {
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static_assert(sizeof(*this) == sizeof(uchar));
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return uchar(*reinterpret_cast<const std::byte*>(this));
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}
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inline friend constexpr auto operator<=>(
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BubbleRounding,
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BubbleRounding) = default;
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};
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struct BubbleSelectionInterval {
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int top = 0;
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int height = 0;
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};
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struct BubblePattern {
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QPixmap pixmap;
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std::array<QImage, 4> cornersSmall;
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std::array<QImage, 4> cornersLarge;
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QImage tailLeft;
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QImage tailRight;
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mutable QImage cornerTopSmallCache;
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mutable QImage cornerTopLargeCache;
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mutable QImage cornerBottomSmallCache;
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mutable QImage cornerBottomLargeCache;
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mutable QImage tailCache;
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};
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[[nodiscard]] std::unique_ptr<BubblePattern> PrepareBubblePattern(
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not_null<const style::palette*> st);
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void FinishBubblePatternOnMain(not_null<BubblePattern*> pattern);
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struct SimpleBubble {
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not_null<const ChatStyle*> st;
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QRect geometry;
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const BubblePattern *pattern = nullptr;
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QRect patternViewport;
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int outerWidth = 0;
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bool selected = false;
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bool shadowed = true;
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bool outbg = false;
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BubbleRounding rounding;
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};
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struct ComplexBubble {
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SimpleBubble simple;
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const std::vector<BubbleSelectionInterval> &selection;
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};
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void PaintBubble(QPainter &p, const SimpleBubble &args);
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void PaintBubble(QPainter &p, const ComplexBubble &args);
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void PaintPatternBubblePart(
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QPainter &p,
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const QRect &viewport,
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const QPixmap &pixmap,
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const QRect &target);
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void PaintPatternBubblePart(
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QPainter &p,
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const QRect &viewport,
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const QPixmap &pixmap,
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const QRect &target,
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const QImage &mask,
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QImage &cache);
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void PaintPatternBubblePart(
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QPainter &p,
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const QRect &viewport,
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const QPixmap &pixmap,
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const QRect &target,
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Fn<void(QPainter&)> paintContent,
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QImage &cache);
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} // namespace Ui
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