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This commit is contained in:
allhaileris
541
Telegram/lib_ui/ui/text/text.h
Normal file
541
Telegram/lib_ui/ui/text/text.h
Normal file
@@ -0,0 +1,541 @@
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// This file is part of Desktop App Toolkit,
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// a set of libraries for developing nice desktop applications.
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//
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// For license and copyright information please follow this link:
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// https://github.com/desktop-app/legal/blob/master/LEGAL
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//
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#pragma once
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#include "ui/text/text_entity.h"
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#include "ui/click_handler.h"
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#include "base/flags.h"
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#include "ui/style/style_core_types.h"
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#include <crl/crl_time.h>
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#include <any>
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class Painter;
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namespace anim {
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enum class type : uchar;
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} // namespace anim
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namespace style {
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struct TextStyle;
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struct TextPalette;
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struct QuoteStyle;
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} // namespace style
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namespace Ui {
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class SpoilerMessCached;
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extern const QString kQEllipsis;
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inline constexpr auto kQFixedMax = (INT_MAX / 256);
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} // namespace Ui
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struct TextParseOptions {
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int32 flags;
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int32 maxw;
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int32 maxh;
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Qt::LayoutDirection dir;
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};
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extern const TextParseOptions kDefaultTextOptions;
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extern const TextParseOptions kMarkupTextOptions;
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extern const TextParseOptions kPlainTextOptions;
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enum class TextSelectType {
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Letters = 0x01,
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Words = 0x02,
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Paragraphs = 0x03,
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};
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struct TextSelection {
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constexpr TextSelection() = default;
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constexpr TextSelection(uint16 from, uint16 to) : from(from), to(to) {
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}
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constexpr bool empty() const {
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return from == to;
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}
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uint16 from = 0;
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uint16 to = 0;
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};
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inline bool operator==(TextSelection a, TextSelection b) {
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return a.from == b.from && a.to == b.to;
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}
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inline bool operator!=(TextSelection a, TextSelection b) {
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return !(a == b);
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}
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static constexpr TextSelection AllTextSelection = { 0, 0xFFFF };
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namespace Ui::Text {
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class CustomEmoji;
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class AbstractBlock;
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class Block;
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class Word;
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struct IsolatedEmoji;
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struct OnlyCustomEmoji;
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struct SpoilerData;
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struct QuoteDetails;
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struct QuotesData;
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struct ExtendedData;
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struct MarkedContext;
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using CustomEmojiFactory = Fn<std::unique_ptr<CustomEmoji>(
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QStringView,
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const MarkedContext &)>;
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struct MarkedContext {
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Fn<void()> repaint;
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CustomEmojiFactory customEmojiFactory;
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std::any other;
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};
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||||
|
||||
struct Modification {
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int position = 0;
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uint16 skipped = 0;
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||||
bool added = false;
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||||
};
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||||
|
||||
struct StateRequest {
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enum class Flag {
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BreakEverywhere = (1 << 0),
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LookupSymbol = (1 << 1),
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LookupLink = (1 << 2),
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LookupCustomTooltip = (1 << 3),
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};
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using Flags = base::flags<Flag>;
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friend inline constexpr auto is_flag_type(Flag) { return true; };
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StateRequest() {
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}
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style::align align = style::al_left;
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Flags flags = Flag::LookupLink;
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};
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struct StateResult {
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ClickHandlerPtr link;
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bool uponSymbol = false;
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bool afterSymbol = false;
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uint16 symbol = 0;
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};
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struct StateRequestElided : StateRequest {
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StateRequestElided() {
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}
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StateRequestElided(const StateRequest &other) : StateRequest(other) {
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}
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||||
int lines = 1;
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int removeFromEnd = 0;
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};
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||||
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class SpoilerMessCache {
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public:
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explicit SpoilerMessCache(int capacity);
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~SpoilerMessCache();
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[[nodiscard]] not_null<SpoilerMessCached*> lookup(QColor color);
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void reset();
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private:
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struct Entry;
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std::vector<Entry> _cache;
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const int _capacity = 0;
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};
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struct SpecialColor {
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const QPen *pen = nullptr;
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const QPen *penSelected = nullptr;
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};
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struct LineGeometry {
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int left = 0;
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int width = 0;
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bool elided = false;
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};
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struct GeometryDescriptor {
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Fn<LineGeometry(int line)> layout;
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bool breakEverywhere = false;
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bool *outElided = nullptr;
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};
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[[nodiscard]] not_null<SpoilerMessCache*> DefaultSpoilerCache();
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[[nodiscard]] GeometryDescriptor SimpleGeometry(
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int availableWidth,
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int elisionLines,
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int elisionRemoveFromEnd,
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bool elisionBreakEverywhere);
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constexpr auto kMaxQuoteOutlines = 3;
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struct QuotePaintCache {
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QImage corners;
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QImage outline;
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QImage expand;
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QImage collapse;
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mutable QImage bottomCorner;
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mutable QImage bottomRounding;
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mutable QImage collapsedLine;
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std::array<QColor, kMaxQuoteOutlines> outlinesCached;
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QColor headerCached;
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QColor bgCached;
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QColor iconCached;
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std::array<QColor, kMaxQuoteOutlines> outlines;
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QColor header;
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QColor bg;
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QColor icon;
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};
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void ValidateQuotePaintCache(
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QuotePaintCache &cache,
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const style::QuoteStyle &st);
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struct SkipBlockPaintParts {
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uint32 skippedTop : 29 = 0;
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uint32 skipBottom : 1 = 0;
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uint32 expandIcon : 1 = 0;
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uint32 collapseIcon : 1 = 0;
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};
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void FillQuotePaint(
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QPainter &p,
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QRect rect,
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const QuotePaintCache &cache,
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const style::QuoteStyle &st,
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SkipBlockPaintParts parts = {});
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||||
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||||
struct HighlightInfoRequest {
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TextSelection range;
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QRect interpolateTo;
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float64 interpolateProgress = 0.;
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QPainterPath *outPath = nullptr;
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};
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struct PaintContext {
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QPoint position;
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int outerWidth = 0; // For automatic RTL Ui inversion.
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int availableWidth = 0;
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GeometryDescriptor geometry; // By default is SimpleGeometry.
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style::align align = style::al_left;
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QRect clip;
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const style::TextPalette *palette = nullptr;
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QuotePaintCache *pre = nullptr;
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QuotePaintCache *blockquote = nullptr;
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std::span<SpecialColor> colors;
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SpoilerMessCache *spoiler = nullptr;
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crl::time now = 0;
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bool paused = false;
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bool pausedEmoji = false;
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bool pausedSpoiler = false;
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bool fullWidthSelection = true;
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TextSelection selection;
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HighlightInfoRequest *highlight = nullptr;
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int elisionHeight = 0;
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int elisionLines = 0;
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int elisionRemoveFromEnd = 0;
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bool elisionBreakEverywhere = false;
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// Elision middle works only with elisionLines = 1 and is very limited.
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bool elisionMiddle = false;
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bool useFullWidth = false; // !(width = min(availableWidth, maxWidth()))
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};
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class String {
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public:
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String(int minResizeWidth = kQFixedMax);
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String(
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const style::TextStyle &st,
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const QString &text,
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const TextParseOptions &options = kDefaultTextOptions,
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int minResizeWidth = kQFixedMax);
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String(
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const style::TextStyle &st,
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const TextWithEntities &textWithEntities,
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const TextParseOptions &options = kMarkupTextOptions,
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int minResizeWidth = kQFixedMax,
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const MarkedContext &context = {});
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String(String &&other);
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String &operator=(String &&other);
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~String();
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[[nodiscard]] int countWidth(
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int width,
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bool breakEverywhere = false) const;
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||||
[[nodiscard]] int countHeight(
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int width,
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bool breakEverywhere = false) const;
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||||
|
||||
struct LineWidthsOptions {
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||||
bool breakEverywhere = false;
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||||
int reserve = 0;
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};
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[[nodiscard]] std::vector<int> countLineWidths(int width) const;
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||||
[[nodiscard]] std::vector<int> countLineWidths(
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int width,
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LineWidthsOptions options) const;
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||||
|
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struct DimensionsResult {
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int width = 0;
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int height = 0;
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std::vector<int> lineWidths;
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};
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struct DimensionsRequest {
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bool breakEverywhere = false;
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bool lineWidths = false;
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int reserve = 0;
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||||
};
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||||
[[nodiscard]] DimensionsResult countDimensions(
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GeometryDescriptor geometry) const;
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[[nodiscard]] DimensionsResult countDimensions(
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GeometryDescriptor geometry,
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DimensionsRequest request) const;
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||||
void setText(
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const style::TextStyle &st,
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const QString &text,
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const TextParseOptions &options = kDefaultTextOptions);
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void setMarkedText(
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const style::TextStyle &st,
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const TextWithEntities &textWithEntities,
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const TextParseOptions &options = kMarkupTextOptions,
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const MarkedContext &context = {});
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[[nodiscard]] bool hasLinks() const;
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void setLink(uint16 index, const ClickHandlerPtr &lnk);
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|
||||
[[nodiscard]] bool hasSpoilers() const;
|
||||
void setSpoilerRevealed(bool revealed, anim::type animated);
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void setSpoilerLinkFilter(Fn<bool(const ClickContext&)> filter);
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|
||||
[[nodiscard]] bool hasCollapsedBlockquots() const;
|
||||
[[nodiscard]] bool blockquoteCollapsed(int index) const;
|
||||
[[nodiscard]] bool blockquoteExpanded(int index) const;
|
||||
void setBlockquoteExpanded(int index, bool expanded);
|
||||
void setBlockquoteExpandCallback(
|
||||
Fn<void(int index, bool expanded)> callback);
|
||||
|
||||
[[nodiscard]] bool hasSkipBlock() const;
|
||||
bool updateSkipBlock(int width, int height);
|
||||
bool removeSkipBlock();
|
||||
|
||||
[[nodiscard]] int maxWidth() const {
|
||||
return _maxWidth;
|
||||
}
|
||||
[[nodiscard]] int minHeight() const {
|
||||
return _minHeight;
|
||||
}
|
||||
[[nodiscard]] int countMaxMonospaceWidth() const;
|
||||
|
||||
void draw(QPainter &p, const PaintContext &context) const;
|
||||
[[nodiscard]] StateResult getState(
|
||||
QPoint point,
|
||||
GeometryDescriptor geometry,
|
||||
StateRequest request = StateRequest()) const;
|
||||
|
||||
void draw(Painter &p, int32 left, int32 top, int32 width, style::align align = style::al_left, int32 yFrom = 0, int32 yTo = -1, TextSelection selection = { 0, 0 }, bool fullWidthSelection = true) const;
|
||||
void drawElided(Painter &p, int32 left, int32 top, int32 width, int32 lines = 1, style::align align = style::al_left, int32 yFrom = 0, int32 yTo = -1, int32 removeFromEnd = 0, bool breakEverywhere = false, TextSelection selection = { 0, 0 }) const;
|
||||
void drawLeft(Painter &p, int32 left, int32 top, int32 width, int32 outerw, style::align align = style::al_left, int32 yFrom = 0, int32 yTo = -1, TextSelection selection = { 0, 0 }) const;
|
||||
void drawLeftElided(Painter &p, int32 left, int32 top, int32 width, int32 outerw, int32 lines = 1, style::align align = style::al_left, int32 yFrom = 0, int32 yTo = -1, int32 removeFromEnd = 0, bool breakEverywhere = false, TextSelection selection = { 0, 0 }) const;
|
||||
void drawRight(Painter &p, int32 right, int32 top, int32 width, int32 outerw, style::align align = style::al_left, int32 yFrom = 0, int32 yTo = -1, TextSelection selection = { 0, 0 }) const;
|
||||
void drawRightElided(Painter &p, int32 right, int32 top, int32 width, int32 outerw, int32 lines = 1, style::align align = style::al_left, int32 yFrom = 0, int32 yTo = -1, int32 removeFromEnd = 0, bool breakEverywhere = false, TextSelection selection = { 0, 0 }) const;
|
||||
|
||||
[[nodiscard]] StateResult getState(QPoint point, int width, StateRequest request = StateRequest()) const;
|
||||
[[nodiscard]] StateResult getStateLeft(QPoint point, int width, int outerw, StateRequest request = StateRequest()) const;
|
||||
[[nodiscard]] StateResult getStateElided(QPoint point, int width, StateRequestElided request = StateRequestElided()) const;
|
||||
[[nodiscard]] StateResult getStateElidedLeft(QPoint point, int width, int outerw, StateRequestElided request = StateRequestElided()) const;
|
||||
|
||||
[[nodiscard]] TextSelection adjustSelection(TextSelection selection, TextSelectType selectType) const;
|
||||
[[nodiscard]] bool isFullSelection(TextSelection selection) const {
|
||||
return (selection.from == 0) && (selection.to >= _text.size());
|
||||
}
|
||||
|
||||
[[nodiscard]] bool isEmpty() const;
|
||||
[[nodiscard]] bool isNull() const {
|
||||
return !_st;
|
||||
}
|
||||
[[nodiscard]] int length() const {
|
||||
return _text.size();
|
||||
}
|
||||
|
||||
[[nodiscard]] QString toString(
|
||||
TextSelection selection = AllTextSelection) const;
|
||||
[[nodiscard]] TextWithEntities toTextWithEntities(
|
||||
TextSelection selection = AllTextSelection) const;
|
||||
[[nodiscard]] TextForMimeData toTextForMimeData(
|
||||
TextSelection selection = AllTextSelection) const;
|
||||
|
||||
[[nodiscard]] bool hasPersistentAnimation() const;
|
||||
void unloadPersistentAnimation();
|
||||
|
||||
[[nodiscard]] bool isIsolatedEmoji() const;
|
||||
[[nodiscard]] IsolatedEmoji toIsolatedEmoji() const;
|
||||
|
||||
[[nodiscard]] bool isOnlyCustomEmoji() const;
|
||||
[[nodiscard]] OnlyCustomEmoji toOnlyCustomEmoji() const;
|
||||
|
||||
[[nodiscard]] bool hasNotEmojiAndSpaces() const;
|
||||
[[nodiscard]] const std::vector<Modification> &modifications() const;
|
||||
|
||||
[[nodiscard]] const style::TextStyle *style() const {
|
||||
return _st;
|
||||
}
|
||||
|
||||
[[nodiscard]] int lineHeight() const;
|
||||
|
||||
void clear();
|
||||
|
||||
private:
|
||||
class ExtendedWrap : public std::unique_ptr<ExtendedData> {
|
||||
public:
|
||||
ExtendedWrap() noexcept;
|
||||
ExtendedWrap(ExtendedWrap &&other) noexcept;
|
||||
ExtendedWrap &operator=(ExtendedWrap &&other) noexcept;
|
||||
~ExtendedWrap();
|
||||
|
||||
ExtendedWrap(
|
||||
std::unique_ptr<ExtendedData> &&other) noexcept;
|
||||
ExtendedWrap &operator=(
|
||||
std::unique_ptr<ExtendedData> &&other) noexcept;
|
||||
|
||||
private:
|
||||
void adjustFrom(const ExtendedWrap *other);
|
||||
|
||||
};
|
||||
|
||||
[[nodiscard]] not_null<ExtendedData*> ensureExtended();
|
||||
[[nodiscard]] not_null<QuotesData*> ensureQuotes();
|
||||
|
||||
[[nodiscard]] uint16 blockPosition(
|
||||
std::vector<Block>::const_iterator i,
|
||||
int fullLengthOverride = -1) const;
|
||||
[[nodiscard]] uint16 blockEnd(
|
||||
std::vector<Block>::const_iterator i,
|
||||
int fullLengthOverride = -1) const;
|
||||
[[nodiscard]] uint16 blockLength(
|
||||
std::vector<Block>::const_iterator i,
|
||||
int fullLengthOverride = -1) const;
|
||||
|
||||
[[nodiscard]] QuoteDetails *quoteByIndex(int index) const;
|
||||
[[nodiscard]] const style::QuoteStyle "eStyle(
|
||||
not_null<QuoteDetails*> quote) const;
|
||||
[[nodiscard]] QMargins quotePadding(QuoteDetails *quote) const;
|
||||
[[nodiscard]] int quoteMinWidth(QuoteDetails *quote) const;
|
||||
[[nodiscard]] const QString "eHeaderText(QuoteDetails *quote) const;
|
||||
|
||||
// Returns -1 in case there is no limit.
|
||||
[[nodiscard]] int quoteLinesLimit(QuoteDetails *quote) const;
|
||||
|
||||
// Block must be either nullptr or a pointer to a NewlineBlock.
|
||||
[[nodiscard]] int quoteIndex(const AbstractBlock *block) const;
|
||||
|
||||
// Template method for originalText(), originalTextWithEntities().
|
||||
template <
|
||||
typename AppendPartCallback,
|
||||
typename ClickHandlerStartCallback,
|
||||
typename ClickHandlerFinishCallback,
|
||||
typename FlagsChangeCallback>
|
||||
void enumerateText(
|
||||
TextSelection selection,
|
||||
AppendPartCallback appendPartCallback,
|
||||
ClickHandlerStartCallback clickHandlerStartCallback,
|
||||
ClickHandlerFinishCallback clickHandlerFinishCallback,
|
||||
FlagsChangeCallback flagsChangeCallback) const;
|
||||
|
||||
// Template method for countWidth(), countHeight(), countLineWidths().
|
||||
// callback(lineWidth, lineBottom) will be called for all lines with:
|
||||
// QFixed lineWidth, int lineBottom
|
||||
template <typename Callback>
|
||||
void enumerateLines(
|
||||
int w,
|
||||
bool breakEverywhere,
|
||||
Callback &&callback) const;
|
||||
template <typename Callback>
|
||||
void enumerateLines(
|
||||
GeometryDescriptor geometry,
|
||||
Callback &&callback) const;
|
||||
|
||||
void insertModifications(int position, int delta);
|
||||
void removeModificationsAfter(int size);
|
||||
void recountNaturalSize(
|
||||
bool initial,
|
||||
Qt::LayoutDirection optionsDir = Qt::LayoutDirectionAuto);
|
||||
|
||||
[[nodiscard]] TextForMimeData toText(
|
||||
TextSelection selection,
|
||||
bool composeExpanded,
|
||||
bool composeEntities) const;
|
||||
|
||||
const style::TextStyle *_st = nullptr;
|
||||
QString _text;
|
||||
std::vector<Block> _blocks;
|
||||
std::vector<Word> _words;
|
||||
ExtendedWrap _extended;
|
||||
|
||||
int _minResizeWidth = 0;
|
||||
int _maxWidth = 0;
|
||||
int _minHeight = 0;
|
||||
uint16 _startQuoteIndex = 0;
|
||||
bool _startParagraphLTR : 1 = false;
|
||||
bool _startParagraphRTL : 1 = false;
|
||||
bool _hasCustomEmoji : 1 = false;
|
||||
bool _isIsolatedEmoji : 1 = false;
|
||||
bool _isOnlyCustomEmoji : 1 = false;
|
||||
bool _hasNotEmojiAndSpaces : 1 = false;
|
||||
bool _skipBlockAddedNewline : 1 = false;
|
||||
bool _endsWithQuoteOrOtherDirection : 1 = false;
|
||||
|
||||
friend class BlockParser;
|
||||
friend class WordParser;
|
||||
friend class Renderer;
|
||||
friend class BidiAlgorithm;
|
||||
friend class StackEngine;
|
||||
|
||||
};
|
||||
|
||||
[[nodiscard]] bool IsBad(QChar ch);
|
||||
[[nodiscard]] bool IsWordSeparator(QChar ch);
|
||||
[[nodiscard]] bool IsAlmostLinkEnd(QChar ch);
|
||||
[[nodiscard]] bool IsLinkEnd(QChar ch);
|
||||
[[nodiscard]] bool IsNewline(QChar ch);
|
||||
[[nodiscard]] bool IsSpace(QChar ch);
|
||||
[[nodiscard]] bool IsDiacritic(QChar ch);
|
||||
[[nodiscard]] bool IsReplacedBySpace(QChar ch);
|
||||
[[nodiscard]] bool IsTrimmed(QChar ch);
|
||||
|
||||
[[nodiscard]] QSize CountOptimalTextSize(
|
||||
const String &text,
|
||||
int minWidth,
|
||||
int maxWidth);
|
||||
|
||||
} // namespace Ui::Text
|
||||
|
||||
inline TextSelection snapSelection(int from, int to) {
|
||||
return { static_cast<uint16>(std::clamp(from, 0, 0xFFFF)), static_cast<uint16>(std::clamp(to, 0, 0xFFFF)) };
|
||||
}
|
||||
inline TextSelection shiftSelection(TextSelection selection, uint16 byLength) {
|
||||
return snapSelection(int(selection.from) + byLength, int(selection.to) + byLength);
|
||||
}
|
||||
inline TextSelection unshiftSelection(TextSelection selection, uint16 byLength) {
|
||||
return snapSelection(int(selection.from) - int(byLength), int(selection.to) - int(byLength));
|
||||
}
|
||||
inline TextSelection shiftSelection(TextSelection selection, const Ui::Text::String &byText) {
|
||||
return shiftSelection(selection, byText.length());
|
||||
}
|
||||
inline TextSelection unshiftSelection(TextSelection selection, const Ui::Text::String &byText) {
|
||||
return unshiftSelection(selection, byText.length());
|
||||
}
|
||||
Reference in New Issue
Block a user