261 lines
9 KiB
C++
261 lines
9 KiB
C++
// This file is part of Desktop App Toolkit,
|
|
// a set of libraries for developing nice desktop applications.
|
|
//
|
|
// For license and copyright information please follow this link:
|
|
// https://github.com/desktop-app/legal/blob/master/LEGAL
|
|
//
|
|
#pragma once
|
|
|
|
#include "ui/text/text_entity.h"
|
|
#include "ui/text/text_block.h"
|
|
#include "ui/painter.h"
|
|
#include "ui/click_handler.h"
|
|
#include "base/flags.h"
|
|
|
|
#include <private/qfixed_p.h>
|
|
#include <any>
|
|
|
|
class SpoilerClickHandler;
|
|
|
|
namespace Ui {
|
|
static const auto kQEllipsis = QStringLiteral("...");
|
|
} // namespace Ui
|
|
|
|
static const QChar TextCommand(0x0010);
|
|
|
|
struct TextParseOptions {
|
|
int32 flags;
|
|
int32 maxw;
|
|
int32 maxh;
|
|
Qt::LayoutDirection dir;
|
|
};
|
|
extern const TextParseOptions kDefaultTextOptions;
|
|
extern const TextParseOptions kMarkupTextOptions;
|
|
extern const TextParseOptions kPlainTextOptions;
|
|
|
|
enum class TextSelectType {
|
|
Letters = 0x01,
|
|
Words = 0x02,
|
|
Paragraphs = 0x03,
|
|
};
|
|
|
|
struct TextSelection {
|
|
constexpr TextSelection() = default;
|
|
constexpr TextSelection(uint16 from, uint16 to) : from(from), to(to) {
|
|
}
|
|
constexpr bool empty() const {
|
|
return from == to;
|
|
}
|
|
uint16 from = 0;
|
|
uint16 to = 0;
|
|
};
|
|
|
|
inline bool operator==(TextSelection a, TextSelection b) {
|
|
return a.from == b.from && a.to == b.to;
|
|
}
|
|
|
|
inline bool operator!=(TextSelection a, TextSelection b) {
|
|
return !(a == b);
|
|
}
|
|
|
|
static constexpr TextSelection AllTextSelection = { 0, 0xFFFF };
|
|
|
|
namespace Ui {
|
|
namespace Text {
|
|
|
|
struct IsolatedEmoji;
|
|
|
|
struct StateRequest {
|
|
enum class Flag {
|
|
BreakEverywhere = (1 << 0),
|
|
LookupSymbol = (1 << 1),
|
|
LookupLink = (1 << 2),
|
|
LookupCustomTooltip = (1 << 3),
|
|
};
|
|
using Flags = base::flags<Flag>;
|
|
friend inline constexpr auto is_flag_type(Flag) { return true; };
|
|
|
|
StateRequest() {
|
|
}
|
|
|
|
style::align align = style::al_left;
|
|
Flags flags = Flag::LookupLink;
|
|
};
|
|
|
|
struct StateResult {
|
|
ClickHandlerPtr link;
|
|
bool uponSymbol = false;
|
|
bool afterSymbol = false;
|
|
uint16 symbol = 0;
|
|
};
|
|
|
|
struct StateRequestElided : public StateRequest {
|
|
StateRequestElided() {
|
|
}
|
|
StateRequestElided(const StateRequest &other) : StateRequest(other) {
|
|
}
|
|
int lines = 1;
|
|
int removeFromEnd = 0;
|
|
};
|
|
|
|
class String {
|
|
public:
|
|
String(int32 minResizeWidth = QFIXED_MAX);
|
|
String(
|
|
const style::TextStyle &st,
|
|
const QString &text,
|
|
const TextParseOptions &options = kDefaultTextOptions,
|
|
int32 minResizeWidth = QFIXED_MAX);
|
|
String(String &&other) = default;
|
|
String &operator=(String &&other) = default;
|
|
~String() = default;
|
|
|
|
int countWidth(int width, bool breakEverywhere = false) const;
|
|
int countHeight(int width, bool breakEverywhere = false) const;
|
|
void countLineWidths(int width, QVector<int> *lineWidths, bool breakEverywhere = false) const;
|
|
void setText(const style::TextStyle &st, const QString &text, const TextParseOptions &options = kDefaultTextOptions);
|
|
void setMarkedText(const style::TextStyle &st, const TextWithEntities &textWithEntities, const TextParseOptions &options = kMarkupTextOptions, const std::any &context = {});
|
|
|
|
void setLink(uint16 lnkIndex, const ClickHandlerPtr &lnk);
|
|
bool hasLinks() const;
|
|
void setSpoiler(
|
|
uint16 lnkIndex,
|
|
const std::shared_ptr<SpoilerClickHandler> &lnk);
|
|
void setSpoilerShown(uint16 lnkIndex, bool shown);
|
|
int spoilersCount() const;
|
|
|
|
bool hasSkipBlock() const;
|
|
bool updateSkipBlock(int width, int height);
|
|
bool removeSkipBlock();
|
|
|
|
int maxWidth() const {
|
|
return _maxWidth.ceil().toInt();
|
|
}
|
|
int minHeight() const {
|
|
return _minHeight;
|
|
}
|
|
int countMaxMonospaceWidth() 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;
|
|
|
|
StateResult getState(QPoint point, int width, StateRequest request = StateRequest()) const;
|
|
StateResult getStateLeft(QPoint point, int width, int outerw, StateRequest request = StateRequest()) const;
|
|
StateResult getStateElided(QPoint point, int width, StateRequestElided request = StateRequestElided()) const;
|
|
StateResult getStateElidedLeft(QPoint point, int width, int outerw, StateRequestElided request = StateRequestElided()) const;
|
|
|
|
[[nodiscard]] TextSelection adjustSelection(TextSelection selection, TextSelectType selectType) const;
|
|
bool isFullSelection(TextSelection selection) const {
|
|
return (selection.from == 0) && (selection.to >= _text.size());
|
|
}
|
|
|
|
bool isEmpty() const;
|
|
bool isNull() const {
|
|
return !_st;
|
|
}
|
|
int length() const {
|
|
return _text.size();
|
|
}
|
|
|
|
[[nodiscard]] bool hasCustomEmoji() const;
|
|
void unloadCustomEmoji();
|
|
|
|
QString toString(TextSelection selection = AllTextSelection) const;
|
|
TextWithEntities toTextWithEntities(
|
|
TextSelection selection = AllTextSelection) const;
|
|
TextForMimeData toTextForMimeData(
|
|
TextSelection selection = AllTextSelection) const;
|
|
IsolatedEmoji toIsolatedEmoji() const;
|
|
|
|
const style::TextStyle *style() const {
|
|
return _st;
|
|
}
|
|
|
|
void clear();
|
|
|
|
private:
|
|
using TextBlocks = std::vector<Block>;
|
|
using TextLinks = QVector<ClickHandlerPtr>;
|
|
|
|
uint16 countBlockEnd(const TextBlocks::const_iterator &i, const TextBlocks::const_iterator &e) const;
|
|
uint16 countBlockLength(const TextBlocks::const_iterator &i, const TextBlocks::const_iterator &e) 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, lineHeight) will be called for all lines with:
|
|
// QFixed lineWidth, int lineHeight
|
|
template <typename Callback>
|
|
void enumerateLines(int w, bool breakEverywhere, Callback callback) const;
|
|
|
|
void recountNaturalSize(bool initial, Qt::LayoutDirection optionsDir = Qt::LayoutDirectionAuto);
|
|
|
|
// clear() deletes all blocks and calls this method
|
|
// it is also called from move constructor / assignment operator
|
|
void clearFields();
|
|
|
|
ClickHandlerPtr spoilerLink(uint16 spoilerIndex) const;
|
|
|
|
TextForMimeData toText(
|
|
TextSelection selection,
|
|
bool composeExpanded,
|
|
bool composeEntities) const;
|
|
|
|
QFixed _minResizeWidth;
|
|
QFixed _maxWidth = 0;
|
|
int32 _minHeight = 0;
|
|
bool _hasCustomEmoji = false;
|
|
|
|
QString _text;
|
|
const style::TextStyle *_st = nullptr;
|
|
|
|
TextBlocks _blocks;
|
|
TextLinks _links;
|
|
|
|
QVector<std::shared_ptr<SpoilerClickHandler>> _spoilers;
|
|
|
|
Qt::LayoutDirection _startDir = Qt::LayoutDirectionAuto;
|
|
|
|
struct {
|
|
std::array<QImage, 4> corners;
|
|
QColor color;
|
|
} _spoilerCache, _spoilerShownCache;
|
|
|
|
friend class Parser;
|
|
friend class Renderer;
|
|
|
|
};
|
|
|
|
[[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 IsDiac(QChar ch);
|
|
[[nodiscard]] bool IsReplacedBySpace(QChar ch);
|
|
[[nodiscard]] bool IsTrimmed(QChar ch);
|
|
|
|
} // namespace Text
|
|
} // namespace Ui
|
|
|
|
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());
|
|
}
|