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565 lines
20 KiB
565 lines
20 KiB
#include "messagedelegate.h" |
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#include "chatview.h" |
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#include "debug_ui.h" |
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#include "emoji.h" |
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#include "animtimer.h" |
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#include "lottieicon.h" |
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#include <cmath> |
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#include <QPainter> |
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#include <QPainterPath> |
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#include <QApplication> |
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#include <QAbstractItemView> |
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#include <QFontMetrics> |
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#include <QTextLayout> |
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MessageDelegate::MessageDelegate(QObject *parent) |
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: QStyledItemDelegate(parent) {} |
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QSize MessageDelegate::sizeHint(const QStyleOptionViewItem &option, |
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const QModelIndex &index) const { |
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Layout L = calcLayout(option, index); |
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return QSize(L.viewWidth, L.totalHeight); |
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} |
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|
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static int measureTextHeight(const QFont &font, const QString &text, int width) { |
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if (text.isEmpty() || width <= 0) return 0; |
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QRect r = QFontMetrics(font).boundingRect(QRect(0, 0, width, 100000), |
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Qt::AlignLeft | Qt::TextWordWrap, text); |
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return r.height(); |
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} |
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static int calcMaxLineWidth(const QFont &font, const QString &text, int availW) { |
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int maxW = 0; |
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int pos = 0; |
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while (pos <= text.length()) { |
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int end = text.indexOf('\n', pos); |
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if (end < 0) end = text.length(); |
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QString para = text.mid(pos, end - pos); |
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if (!para.isEmpty()) { |
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QTextLayout layout(para, font); |
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layout.beginLayout(); |
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while (true) { |
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QTextLine line = layout.createLine(); |
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if (!line.isValid()) break; |
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line.setLineWidth(availW); |
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line.setPosition(QPointF(0, 0)); |
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maxW = qMax(maxW, (int)line.naturalTextWidth()); |
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} |
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layout.endLayout(); |
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} |
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pos = end + 1; |
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} |
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return maxW; |
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} |
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MessageDelegate::Layout MessageDelegate::calcLayout( |
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const QStyleOptionViewItem &option, const QModelIndex &index) const |
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{ |
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Layout L{}; |
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L.viewWidth = 300; |
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if (option.widget) { |
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auto *v = qobject_cast<const QAbstractItemView *>(option.widget); |
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if (v) L.viewWidth = v->viewport()->width(); |
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} |
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if (L.viewWidth <= 0) L.viewWidth = 300; |
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bool hasQuote = index.data(MsgHasQuoteRole).toBool(); |
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QString text = index.data(MsgTextRole).toString(); |
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QString qText = hasQuote ? index.data(MsgQuoteTextRole).toString() : QString(); |
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int availW = L.viewWidth - kMarginH - kAvatar - kGap - kMarginH; |
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L.narrow = (availW < 400); |
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if (L.narrow) availW = L.viewWidth - 2 * kMarginH; |
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int textLimitW = availW - 2 * kPadH; |
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int limitW = text.contains(' ') ? qMin(textLimitW, 700) |
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: qMin(textLimitW, 1200); |
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QFontMetrics fm(option.font); |
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int contentW = calcMaxLineWidth(option.font, text, limitW); |
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QString author = index.data(MsgAuthorRole).toString(); |
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QFont boldFm = option.font; |
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boldFm.setBold(true); |
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int authorW = QFontMetrics(boldFm).horizontalAdvance(author); |
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contentW = qMax(contentW, authorW); |
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if (hasQuote) { |
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QString qAuthor = index.data(MsgQuoteAuthorRole).toString(); |
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int qAuthorW = QFontMetrics(boldFm).horizontalAdvance(qAuthor); |
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contentW = qMax(contentW, qAuthorW + kQuoteBarW + kQuotePadH + 4); |
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int qTextW = qMin(contentW + 8, limitW); |
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int qWidth = calcMaxLineWidth(option.font, qText, qTextW); |
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contentW = qMax(contentW, qWidth + kQuoteBarW + kQuotePadH + 4); |
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} |
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int textW = qMax(200 - 2 * kPadH, contentW); |
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textW = qMin(textW, textLimitW); |
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int bubbleW = textW + 2 * kPadH; |
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L.bubbleWidth = bubbleW; |
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int qH = 0; |
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if (hasQuote) { |
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int qTextW = bubbleW - 2 * kPadH - kQuoteBarW - kQuotePadH; |
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int qTextH = measureTextHeight(option.font, qText, qTextW); |
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int qOneLineH = fm.height(); |
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qH = kQuotePadV + qOneLineH + (qText.isEmpty() ? 0 : 2 + qTextH) + kQuotePadV; |
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} |
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int textH = measureTextHeight(option.font, text, textW); |
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int authorH = fm.height(); |
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int bubbleH = kPadTop + authorH + 2 + (hasQuote ? qH + kQuoteGap : 0) + textH + kStatusH + kPadBot; |
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L.totalHeight = qMax(bubbleH, kAvatar) + kItemGap; |
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int contentLeft = L.narrow ? kMarginH : (kMarginH + kAvatar + kGap); |
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L.bubbleRect = QRect(contentLeft, 0, bubbleW, bubbleH); |
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int contentTop = kPadTop; |
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L.authorRect = QRect(contentLeft + kPadH, contentTop, textW, authorH); |
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contentTop += authorH + 2; |
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if (hasQuote) { |
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L.quoteRect = QRect(contentLeft + kPadH, contentTop, bubbleW - 2 * kPadH, qH); |
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L.quoteBarRect = QRect(L.quoteRect.left(), L.quoteRect.top(), |
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kQuoteBarW, qH); |
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int tx = L.quoteBarRect.right() + kQuotePadH; |
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L.quoteAuthorRect = QRect(tx, L.quoteRect.top() + kQuotePadV, |
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L.quoteRect.width() - kQuoteBarW - kQuotePadH, |
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QFontMetrics(option.font).height()); |
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L.quoteTextRect = QRect(tx, |
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L.quoteAuthorRect.bottom() + 2, |
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L.quoteAuthorRect.width(), |
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qH - kQuotePadV - QFontMetrics(option.font).height() - 2 - kQuotePadV); |
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contentTop += qH + kQuoteGap; |
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} |
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L.textRect = QRect(contentLeft + kPadH, contentTop, |
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textW, textH); |
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L.statusRect = QRect(contentLeft + kPadH, |
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contentTop + textH + 2, |
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textW, kStatusH); |
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if (!L.narrow) { |
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int avatarY = L.bubbleRect.bottom() - kAvatar; |
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L.avatarRect = QRect(kMarginH, avatarY, kAvatar, kAvatar); |
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} |
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return L; |
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} |
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static int paraLayoutHeight(const QFont &font, const QString &text, |
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int textWidth, int globalChar, qreal globalY, |
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int yTop, int yBot, int xTop, int xBot, |
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bool &foundStart, bool &foundEnd, |
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int &startChar, int &endChar) { |
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if (text.isEmpty()) return QFontMetrics(font).lineSpacing(); |
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QTextLayout layout(text, font); |
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layout.beginLayout(); |
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qreal localY = 0; |
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while (true) { |
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QTextLine line = layout.createLine(); |
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if (!line.isValid()) break; |
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line.setLineWidth(textWidth); |
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line.setPosition(QPointF(0, globalY + localY)); |
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localY += line.height(); |
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if (!foundStart && globalY + localY > yTop) { |
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startChar = globalChar + line.xToCursor(xTop); |
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foundStart = true; |
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} |
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if (!foundEnd && globalY >= yBot) break; |
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if (!foundEnd && globalY + localY >= yBot) { |
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endChar = globalChar + line.xToCursor(xBot); |
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foundEnd = true; |
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} |
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} |
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layout.endLayout(); |
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return (int)ceil(localY); |
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} |
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static void calcTextSelection(const QFont &font, const QString &text, |
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int textWidth, const QPoint &p1, const QPoint &p2, |
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int &startChar, int &endChar) { |
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startChar = 0; |
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endChar = 0; |
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if (text.isEmpty() || textWidth <= 0) return; |
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int yTop = qMin(p1.y(), p2.y()); |
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int yBot = qMax(p1.y(), p2.y()); |
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int xTop = (p1.y() < p2.y()) ? p1.x() : p2.x(); |
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int xBot = (p1.y() < p2.y()) ? p2.x() : p1.x(); |
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int globalChar = 0; |
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qreal globalY = 0; |
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bool foundStart = false, foundEnd = false; |
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int paraStart = 0; |
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while (paraStart <= text.length()) { |
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int paraEnd = text.indexOf('\n', paraStart); |
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if (paraEnd < 0) paraEnd = text.length(); |
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QString para = text.mid(paraStart, paraEnd - paraStart); |
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int paraH = paraLayoutHeight(font, para, textWidth, |
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globalChar, globalY, |
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yTop, yBot, xTop, xBot, |
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foundStart, foundEnd, |
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startChar, endChar); |
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globalChar += para.length(); |
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globalY += paraH; |
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if (paraEnd < text.length()) |
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globalChar++; |
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paraStart = paraEnd + 1; |
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if (foundStart && foundEnd) break; |
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} |
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if (!foundStart) startChar = 0; |
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if (!foundEnd) endChar = text.length(); |
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if (startChar == endChar && endChar < text.length()) endChar = startChar + 1; |
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if (startChar > endChar) qSwap(startChar, endChar); |
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} |
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static void drawTextSelectionHighlight(QPainter *p, const QFont &font, |
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const QString &text, int textWidth, |
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const QRect &textRect, |
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const QColor &selColor, |
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int startChar, int endChar) { |
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if (startChar >= endChar) return; |
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int globalChar = 0; |
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qreal globalY = 0; |
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int paraStart = 0; |
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while (paraStart <= text.length()) { |
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int paraEnd = text.indexOf('\n', paraStart); |
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if (paraEnd < 0) paraEnd = text.length(); |
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QString para = text.mid(paraStart, paraEnd - paraStart); |
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if (para.isEmpty()) { |
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globalY += QFontMetrics(font).lineSpacing(); |
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} else { |
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QTextLayout layout(para, font); |
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layout.beginLayout(); |
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qreal localY = 0; |
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while (true) { |
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QTextLine line = layout.createLine(); |
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if (!line.isValid()) break; |
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line.setLineWidth(textWidth); |
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line.setPosition(QPointF(0, globalY + localY)); |
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int ls = globalChar + line.textStart(); |
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int le = ls + line.textLength(); |
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localY += line.height(); |
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if (ls >= endChar || le <= startChar) continue; |
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int cs = qMax(startChar, ls); |
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int ce = qMin(endChar, le); |
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qreal x1 = line.cursorToX(cs - globalChar); |
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qreal x2 = line.cursorToX(ce - globalChar); |
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QRectF hr(textRect.left() + x1, |
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textRect.top() + globalY + line.y(), |
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x2 - x1, line.height()); |
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p->fillRect(hr, selColor); |
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} |
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layout.endLayout(); |
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globalY += localY; |
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} |
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globalChar += para.length(); |
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if (paraEnd < text.length()) |
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globalChar++; |
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paraStart = paraEnd + 1; |
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} |
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} |
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static void drawAnimatedEmojiOverlay(QPainter *p, const QFont &font, |
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const QString &text, int textWidth, |
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const QRect &textRect) { |
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if (g_animatedEmojiMap.isEmpty()) return; |
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int globalChar = 0; |
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qreal globalY = 0; |
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int paraStart = 0; |
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while (paraStart <= text.length()) { |
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int paraEnd = text.indexOf('\n', paraStart); |
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if (paraEnd < 0) paraEnd = text.length(); |
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QString para = text.mid(paraStart, paraEnd - paraStart); |
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if (!para.isEmpty()) { |
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QTextLayout layout(para, font); |
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layout.beginLayout(); |
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qreal localY = 0; |
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while (true) { |
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QTextLine line = layout.createLine(); |
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if (!line.isValid()) break; |
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line.setLineWidth((qreal)textWidth); |
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line.setPosition(QPointF(0, globalY + localY)); |
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localY += line.height(); |
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int ls = globalChar + line.textStart(); |
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int le = ls + line.textLength(); |
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for (auto it = g_animatedEmojiMap.begin(); it != g_animatedEmojiMap.end(); ++it) { |
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const QString &unicode = it.key(); |
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int pos = text.indexOf(unicode, ls); |
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while (pos >= 0 && pos + unicode.length() <= le) { |
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int linePos = pos - globalChar - line.textStart(); |
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int cp1 = linePos, cp2 = linePos + unicode.length(); |
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qreal x1 = line.cursorToX(&cp1); |
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qreal x2 = line.cursorToX(&cp2); |
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LottieIcon *icon = AnimTimer::instance()->icon(it.value()); |
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if (icon && icon->isValid()) { |
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int eW = qMax(1, (int)((x2 - x1) * 1.3)); |
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int eH = qMax(1, (int)(line.height() * 1.3)); |
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QImage frame = icon->renderFrame(icon->currentFrame(), QSize(eW, eH)); |
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qreal cx = x1 + (x2 - x1 - eW) * 0.5; |
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qreal cy = (line.height() - eH) * 0.5; |
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p->drawImage(QPointF(textRect.left() + cx, textRect.top() + line.y() + cy), frame); |
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} |
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pos = text.indexOf(unicode, pos + unicode.length()); |
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} |
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} |
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} |
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layout.endLayout(); |
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globalY += localY; |
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} else { |
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globalY += QFontMetrics(font).lineSpacing(); |
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} |
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globalChar += para.length(); |
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if (paraEnd < text.length()) globalChar++; |
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paraStart = paraEnd + 1; |
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} |
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} |
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void MessageDelegate::paint(QPainter *painter, const QStyleOptionViewItem &option, |
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const QModelIndex &index) const { |
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painter->save(); |
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painter->translate(option.rect.topLeft()); |
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painter->setClipRect(QRect(QPoint(0, 0), option.rect.size())); |
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Layout L = calcLayout(option, index); |
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auto *cv = qobject_cast<const ChatView *>(option.widget); |
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bool singleTextSel = false; |
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bool multiRowSel = false; |
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if (cv && cv->hasSelection()) { |
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if (cv->isRowSelected(index)) { |
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if (cv->selStart() == cv->selEnd()) { |
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singleTextSel = true; |
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} else { |
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multiRowSel = true; |
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} |
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} |
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} |
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drawBubble(painter, L); |
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if (multiRowSel) { |
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painter->save(); |
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painter->setPen(Qt::NoPen); |
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painter->setBrush(QColor(0x33, 0x90, 0xEC, 40)); |
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painter->drawRect(L.bubbleRect); |
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painter->restore(); |
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} |
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if (index.data(MsgHasQuoteRole).toBool()) { |
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drawQuote(painter, L, index, option); |
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} |
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if (!L.narrow) |
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drawAvatar(painter, L, index); |
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QFont authorFont = option.font; |
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authorFont.setBold(true); |
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painter->setFont(authorFont); |
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painter->setPen(QColor(0x33, 0x90, 0xEC)); |
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painter->drawText(L.authorRect, Qt::AlignLeft | Qt::AlignVCenter, |
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index.data(MsgAuthorRole).toString()); |
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painter->setPen(option.palette.text().color()); |
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QFont textFont = option.font; |
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textFont.setPointSize(textFont.pointSize()); |
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painter->setFont(textFont); |
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QString msgText = index.data(MsgTextRole).toString(); |
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painter->drawText(L.textRect, Qt::AlignLeft | Qt::TextWordWrap, msgText); |
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if (singleTextSel && cv) { |
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const auto &ts = cv->textSelection(); |
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QPoint localP1(ts.clickPos.x() - L.textRect.left(), |
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ts.clickPos.y() - L.textRect.top()); |
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QPoint localP2(ts.dragPos.x() - L.textRect.left(), |
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ts.dragPos.y() - L.textRect.top()); |
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int startChar, endChar; |
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calcTextSelection(textFont, msgText, L.textRect.width(), |
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localP1, localP2, startChar, endChar); |
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const_cast<ChatView *>(cv)->setTextSelChars(startChar, endChar); |
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drawTextSelectionHighlight(painter, textFont, msgText, |
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L.textRect.width(), L.textRect, |
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QColor(0x33, 0x90, 0xEC, 60), |
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startChar, endChar); |
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} |
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drawAnimatedEmojiOverlay(painter, textFont, msgText, |
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L.textRect.width(), L.textRect); |
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drawStatusBar(painter, L, index, option); |
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painter->restore(); |
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} |
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void MessageDelegate::drawQuote(QPainter *p, const Layout &L, |
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const QModelIndex &index, |
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const QStyleOptionViewItem &opt) const { |
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p->save(); |
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p->setPen(Qt::NoPen); |
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p->setBrush(QColor(0xFF, 0xEE, 0xEE)); |
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p->drawRoundedRect(L.quoteRect, 5, 5); |
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p->setPen(Qt::NoPen); |
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p->setBrush(QColor(0xE0, 0x40, 0x40)); |
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p->drawRect(L.quoteBarRect); |
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QFont boldFont = opt.font; |
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boldFont.setBold(true); |
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p->setFont(boldFont); |
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p->setPen(QColor(0xE0, 0x40, 0x40)); |
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p->drawText(L.quoteAuthorRect, Qt::AlignLeft | Qt::AlignVCenter, |
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index.data(MsgQuoteAuthorRole).toString()); |
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p->setFont(opt.font); |
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p->setPen(QColor(0x99, 0x55, 0x55)); |
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p->drawText(L.quoteTextRect, Qt::AlignLeft | Qt::TextWordWrap, |
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index.data(MsgQuoteTextRole).toString()); |
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p->restore(); |
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} |
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void MessageDelegate::drawBubble(QPainter *p, const Layout &L) const { |
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p->save(); |
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p->setRenderHint(QPainter::Antialiasing); |
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QRectF b = L.bubbleRect; |
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qreal r = kRadius; |
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qreal t = kTail; |
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QPainterPath body; |
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body.addRoundedRect(b, r, r); |
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QPainterPath tail; |
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qreal tx = b.left(); |
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qreal ty = b.bottom(); |
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tail.moveTo(tx, ty - r); |
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tail.lineTo(tx - t, ty - t / 2.0); |
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tail.lineTo(tx + r, ty); |
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tail.closeSubpath(); |
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QPainterPath combined = body.united(tail); |
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p->setPen(QPen(QColor(0xE0, 0xE0, 0xE0), 0.5)); |
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p->setBrush(QColor(255, 255, 255)); |
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p->drawPath(combined); |
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p->restore(); |
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} |
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void MessageDelegate::drawStatusBar(QPainter *p, const Layout &L, |
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const QModelIndex &index, |
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const QStyleOptionViewItem &opt) const { |
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p->save(); |
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QRect r = L.statusRect; |
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QVariant reactionsVar = index.data(MsgReactionsRole); |
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QVariantList reactions = reactionsVar.toList(); |
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int rx = r.left(); |
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if (!reactions.isEmpty()) { |
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for (const QVariant &rv : reactions) { |
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QVariantMap rm = rv.toMap(); |
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QString emoji = rm["emoji"].toString(); |
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int count = rm["count"].toInt(); |
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QVariant colorsVar = rm["colors"]; |
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QList<QColor> colors = colorsVar.value<QList<QColor>>(); |
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if (count < 4 && !colors.isEmpty()) { |
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int iconSize = 16; |
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for (int i = colors.size() - 1; i >= 0; --i) { |
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int cx = rx + i * 11; |
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p->setPen(Qt::NoPen); |
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p->setBrush(colors[i]); |
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p->drawEllipse(cx, r.top() + 1, iconSize, iconSize); |
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} |
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rx += colors.size() * 11 + 8; |
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} else { |
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LottieIcon *rIcon = nullptr; |
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if (g_animatedEmojiMap.contains(emoji)) |
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rIcon = AnimTimer::instance()->icon(g_animatedEmojiMap[emoji]); |
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if (rIcon && rIcon->isValid()) { |
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int iconSz = qMin((int)(20 * 1.3), r.height()); |
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QImage frame = rIcon->renderFrame(rIcon->currentFrame(), QSize(iconSz, iconSz)); |
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p->drawImage(rx, r.top() + (r.height() - iconSz) / 2, frame); |
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rx += iconSz + 2; |
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} else { |
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QFont emojiFont = opt.font; |
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emojiFont.setPointSize(emojiFont.pointSize() - 1); |
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p->setFont(emojiFont); |
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p->setPen(opt.palette.text().color()); |
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QRect emojiRect(rx, r.top(), 20, r.height()); |
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p->drawText(emojiRect, Qt::AlignLeft | Qt::AlignVCenter, emoji); |
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rx += 20; |
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} |
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QFont countFont = opt.font; |
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countFont.setPointSize(countFont.pointSize() - 2); |
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p->setFont(countFont); |
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p->setPen(QColor(0x80, 0x80, 0x80)); |
|
QRect cntRect(rx, r.top(), 24, r.height()); |
|
p->drawText(cntRect, Qt::AlignLeft | Qt::AlignVCenter, |
|
QString::number(count)); |
|
rx = cntRect.right() + 8; |
|
} |
|
} |
|
} |
|
|
|
QFont smallFont = opt.font; |
|
smallFont.setPointSize(smallFont.pointSize() - 2); |
|
p->setFont(smallFont); |
|
p->setPen(QColor(0x80, 0x80, 0x80)); |
|
|
|
QString statusText; |
|
if (index.data(MsgEditedRole).toBool()) { |
|
statusText = QString::fromUtf8("изменено "); |
|
} |
|
statusText += index.data(MsgTimeRole).toString(); |
|
p->drawText(QRect(r.left(), r.top(), r.width(), r.height()), |
|
Qt::AlignRight | Qt::AlignVCenter, statusText); |
|
|
|
p->restore(); |
|
} |
|
|
|
void MessageDelegate::drawAvatar(QPainter *p, const Layout &L, |
|
const QModelIndex &index) const { |
|
QPixmap av = index.data(MsgAvatarRole).value<QPixmap>(); |
|
if (av.isNull()) return; |
|
|
|
p->save(); |
|
p->setRenderHint(QPainter::Antialiasing); |
|
QPainterPath clip; |
|
clip.addEllipse(L.avatarRect); |
|
p->setClipPath(clip); |
|
p->drawPixmap(L.avatarRect, av); |
|
p->restore(); |
|
}
|
|
|