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61 lines
1.8 KiB
61 lines
1.8 KiB
#pragma once
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#include "RoomInfoListItem.h"
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#include <QDateTime>
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#include <mtx/events/collections.hpp>
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namespace utils {
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using TimelineEvent = mtx::events::collections::TimelineEvents;
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//! Human friendly timestamp representation.
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QString
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descriptiveTime(const QDateTime &then);
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//! Generate a message description from the event to be displayed
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//! in the RoomList.
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DescInfo
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getMessageDescription(const TimelineEvent &event, const QString &localUser, const QString &room_id);
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//! Get the first character of a string, taking into account that
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//! surrogate pairs might be in use.
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QString
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firstChar(const QString &input);
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//! Get a human readable file size with the appropriate units attached.
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QString
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humanReadableFileSize(uint64_t bytes);
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//! Scale down an image to fit to the given width & height limitations.
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template<class ImageType>
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ImageType
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scaleDown(uint64_t max_width, uint64_t max_height, const ImageType &source)
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{
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if (source.isNull())
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return QPixmap();
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auto width_ratio = (double)max_width / (double)source.width();
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auto height_ratio = (double)max_height / (double)source.height();
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auto min_aspect_ratio = std::min(width_ratio, height_ratio);
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int final_width = 0;
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int final_height = 0;
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if (min_aspect_ratio > 1) {
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final_width = source.width();
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final_height = source.height();
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} else {
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final_width = source.width() * min_aspect_ratio;
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final_height = source.height() * min_aspect_ratio;
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}
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return source.scaled(
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final_width, final_height, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);
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}
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//! Calculate the Levenshtein distance between two strings with character skipping.
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int
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levenshtein_distance(const std::string &s1, const std::string &s2);
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}
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