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這篇文章主要介紹“Qt農(nóng)歷控件如何實(shí)現(xiàn)”,在日常操作中,相信很多人在Qt農(nóng)歷控件如何實(shí)現(xiàn)問題上存在疑惑,小編查閱了各式資料,整理出簡(jiǎn)單好用的操作方法,希望對(duì)大家解答”Qt農(nóng)歷控件如何實(shí)現(xiàn)”的疑惑有所幫助!接下來,請(qǐng)跟著小編一起來學(xué)習(xí)吧!
農(nóng)歷控件在國(guó)產(chǎn)linux中必備的控件之一,畢竟要適應(yīng)國(guó)人的習(xí)慣,你看win10系統(tǒng)的日歷,現(xiàn)在點(diǎn)開來直接就有農(nóng)歷在上面,非常方便人性化,所以在很多用Qt做的項(xiàng)目中,也有農(nóng)歷控件的應(yīng)用場(chǎng)景,而Qt自帶的日歷控件比較簡(jiǎn)單,仔細(xì)看過源碼的人也只知道,其實(shí)就是一堆微調(diào)框,下拉框,表格組成的,于是打算借用此方法造一個(gè)農(nóng)歷控件,本控件的算法是倪大俠提供的,個(gè)人測(cè)試下來還是沒有問題的,造這個(gè)農(nóng)歷控件最大的難點(diǎn)是如何根據(jù)日期計(jì)算農(nóng)歷時(shí)間,再加上一些農(nóng)歷的節(jié)氣之類的,這個(gè)網(wǎng)上估計(jì)也有很多的算法參考。
主要功能:
可設(shè)置邊框顏色/周末顏色/角標(biāo)顏色/農(nóng)歷節(jié)日顏色
可設(shè)置當(dāng)前月文字顏色/其他月文字顏色/選中日期文字顏色/懸停日期文字顏色
可設(shè)置當(dāng)前月農(nóng)歷文字顏色/其他月農(nóng)歷文字顏色/選中日期農(nóng)歷文字顏色/懸停日期農(nóng)歷文字顏色
可設(shè)置當(dāng)前月背景顏色/其他月背景顏色/選中日期背景顏色/懸停日期背景顏色
可設(shè)置三種選中背景模式,矩形背景+圓形背景+圖片背景
可直接切換到上一年/下一年/上一月/下一月/轉(zhuǎn)到今天
可設(shè)置是否顯示農(nóng)歷信息,不顯示則當(dāng)做正常的日歷使用
支持1900年-2099年范圍
很方便改成多選日期
void LunarCalendarItem::paintEvent(QPaintEvent *) { //繪制準(zhǔn)備工作,啟用反鋸齒 QPainter painter(this); painter.setRenderHints(QPainter::Antialiasing | QPainter::TextAntialiasing); //繪制背景和邊框 drawBg(&painter); //優(yōu)先繪制選中狀態(tài),其次繪制懸停狀態(tài) if (select) { drawBgCurrent(&painter, selectBgColor); } else if (hover) { drawBgCurrent(&painter, hoverBgColor); } //繪制日期 drawDay(&painter); //繪制農(nóng)歷信息 drawLunar(&painter); } void LunarCalendarItem::drawBg(QPainter *painter) { painter->save(); //根據(jù)當(dāng)前類型選擇對(duì)應(yīng)的顏色 QColor bgColor = currentBgColor; if (dayType == DayType_MonthPre || dayType == DayType_MonthNext) { bgColor = otherBgColor; } painter->setPen(borderColor); painter->setBrush(bgColor); painter->drawRect(rect()); painter->restore(); } void LunarCalendarItem::drawBgCurrent(QPainter *painter, const QColor &color) { int width = this->width(); int height = this->height(); int side = qMin(width, height); painter->save(); painter->setPen(Qt::NoPen); painter->setBrush(color); //根據(jù)設(shè)定繪制背景樣式 if (selectType == SelectType_Rect) { painter->drawRect(rect()); } else if (selectType == SelectType_Circle) { int radius = side / 2 - 3; painter->drawEllipse(QPointF(width / 2, height / 2), radius, radius); } else if (selectType == SelectType_Triangle) { int radius = side / 3; QPolygon pts; pts.setPoints(3, 1, 1, radius, 1, 1, radius); painter->drawRect(rect()); painter->setBrush(superColor); painter->drawConvexPolygon(pts); } else if (selectType == SelectType_Image) { //等比例縮放居中繪制 QImage img(bgImage); if (!img.isNull()) { img = img.scaled(this->size(), Qt::KeepAspectRatio, Qt::SmoothTransformation); int x = (width - img.width()) / 2; int y = (height - img.height()) / 2; painter->drawImage(x, y, img); } } painter->restore(); } void LunarCalendarItem::drawDay(QPainter *painter) { int width = this->width(); int height = this->height(); int side = qMin(width, height); painter->save(); //根據(jù)當(dāng)前類型選擇對(duì)應(yīng)的顏色 QColor color = currentTextColor; if (dayType == DayType_MonthPre || dayType == DayType_MonthNext) { color = otherTextColor; } else if (dayType == DayType_WeekEnd) { color = weekColor; } if (select) { color = selectTextColor; } else if (hover) { color = hoverTextColor; } painter->setPen(color); if (showLunar) { QFont font; font.setPixelSize(side / 2.7); painter->setFont(font); QRect dayRect = QRect(0, 0, width, height / 1.7); painter->drawText(dayRect, Qt::AlignHCenter | Qt::AlignBottom, QString::number(date.day())); } else { QFont font; font.setPixelSize(side / 2); painter->setFont(font); QRect dayRect = QRect(0, 0, width, height); painter->drawText(dayRect, Qt::AlignCenter, QString::number(date.day())); } painter->restore(); } void LunarCalendarItem::drawLunar(QPainter *painter) { if (!showLunar) { return; } int width = this->width(); int height = this->height(); int side = qMin(width, height); painter->save(); //判斷當(dāng)前農(nóng)歷文字是否節(jié)日,是節(jié)日且是當(dāng)月則用農(nóng)歷節(jié)日顏色顯示 bool exist = (!listDayName.contains(lunar) && dayType != DayType_MonthPre && dayType != DayType_MonthNext); //根據(jù)當(dāng)前類型選擇對(duì)應(yīng)的顏色 QColor color = currentLunarColor; if (dayType == DayType_MonthPre || dayType == DayType_MonthNext) { color = otherLunarColor; } if (select) { color = selectTextColor; } else if (hover) { color = hoverTextColor; } else if (exist) { color = lunarColor; } painter->setPen(color); QFont font; font.setPixelSize(side / 5); painter->setFont(font); QRect lunarRect(0, height / 2, width, height / 2); painter->drawText(lunarRect, Qt::AlignCenter, lunar); painter->restore(); }
到此,關(guān)于“Qt農(nóng)歷控件如何實(shí)現(xiàn)”的學(xué)習(xí)就結(jié)束了,希望能夠解決大家的疑惑。理論與實(shí)踐的搭配能更好的幫助大家學(xué)習(xí),快去試試吧!若想繼續(xù)學(xué)習(xí)更多相關(guān)知識(shí),請(qǐng)繼續(xù)關(guān)注億速云網(wǎng)站,小編會(huì)繼續(xù)努力為大家?guī)砀鄬?shí)用的文章!
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