nerix
6860c7007e
The rendering of selections was not aligned to the actual selection that took place for newlines at the end of messages, if they were the only part that was selected of that message. In addition to that fix, we've already refactored the MessageLayoutContainer to try to make it a little bit more sane to work with in the future. Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>
120 lines
3.1 KiB
C++
120 lines
3.1 KiB
C++
#pragma once
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#include "common/Common.hpp"
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#include "common/FlagsEnum.hpp"
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#include "messages/layouts/MessageLayoutContainer.hpp"
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#include <QPixmap>
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#include <cinttypes>
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#include <memory>
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namespace chatterino {
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struct Message;
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using MessagePtr = std::shared_ptr<const Message>;
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struct Selection;
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struct MessageLayoutContainer;
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class MessageLayoutElement;
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struct MessagePaintContext;
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enum class MessageElementFlag : int64_t;
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using MessageElementFlags = FlagsEnum<MessageElementFlag>;
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enum class MessageLayoutFlag : uint8_t {
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RequiresBufferUpdate = 1 << 1,
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RequiresLayout = 1 << 2,
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AlternateBackground = 1 << 3,
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Collapsed = 1 << 4,
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Expanded = 1 << 5,
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IgnoreHighlights = 1 << 6,
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};
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using MessageLayoutFlags = FlagsEnum<MessageLayoutFlag>;
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class MessageLayout
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{
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public:
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MessageLayout(MessagePtr message_);
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~MessageLayout();
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MessageLayout(const MessageLayout &) = delete;
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MessageLayout &operator=(const MessageLayout &) = delete;
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MessageLayout(MessageLayout &&) = delete;
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MessageLayout &operator=(MessageLayout &&) = delete;
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const Message *getMessage();
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const MessagePtr &getMessagePtr() const;
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int getHeight() const;
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int getWidth() const;
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MessageLayoutFlags flags;
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bool layout(int width, float scale_, MessageElementFlags flags);
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// Painting
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void paint(const MessagePaintContext &ctx);
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void invalidateBuffer();
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void deleteBuffer();
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void deleteCache();
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// Elements
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const MessageLayoutElement *getElementAt(QPoint point);
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/**
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* Get the index of the last character in this message's container
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* This is the sum of all the characters in `elements_`
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*/
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size_t getLastCharacterIndex() const;
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/**
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* Get the index of the first visible character in this message's container
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* This is not always 0 in case there elements that are skipped
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*/
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size_t getFirstMessageCharacterIndex() const;
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/**
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* Get the character index at the given position, in the context of selections
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*/
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size_t getSelectionIndex(QPoint position) const;
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void addSelectionText(QString &str, uint32_t from = 0,
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uint32_t to = UINT32_MAX,
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CopyMode copymode = CopyMode::Everything);
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// Misc
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bool isDisabled() const;
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bool isReplyable() const;
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private:
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// methods
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void actuallyLayout(int width, MessageElementFlags flags);
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void updateBuffer(QPixmap *buffer, const MessagePaintContext &ctx);
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// Create new buffer if required, returning the buffer
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QPixmap *ensureBuffer(QPainter &painter, int width);
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// variables
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MessagePtr message_;
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MessageLayoutContainer container_;
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std::unique_ptr<QPixmap> buffer_{};
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bool bufferValid_ = false;
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int height_ = 0;
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int currentLayoutWidth_ = -1;
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int layoutState_ = -1;
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float scale_ = -1;
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MessageElementFlags currentWordFlags_;
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#ifdef FOURTF
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// Debug counters
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unsigned int layoutCount_ = 0;
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unsigned int bufferUpdatedCount_ = 0;
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#endif
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};
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using MessageLayoutPtr = std::shared_ptr<MessageLayout>;
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} // namespace chatterino
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