mirror of
https://github.com/Nheko-Reborn/nheko.git
synced 2024-11-25 20:48:52 +03:00
161 lines
5.2 KiB
C++
161 lines
5.2 KiB
C++
#pragma once
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#include <QFontMetrics>
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#include <QPaintDevice>
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#include <QPainter>
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class Painter : public QPainter
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{
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public:
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explicit Painter(QPaintDevice *device)
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: QPainter(device)
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{}
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void drawTextLeft(int x, int y, const QString &text)
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{
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QFontMetrics m(fontMetrics());
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drawText(x, y + m.ascent(), text);
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}
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void drawTextRight(int x, int y, int outerw, const QString &text, int textWidth = -1)
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{
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QFontMetrics m(fontMetrics());
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if (textWidth < 0)
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textWidth = m.width(text);
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drawText((outerw - x - textWidth), y + m.ascent(), text);
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}
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void drawPixmapLeft(int x, int y, const QPixmap &pix, const QRect &from)
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{
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drawPixmap(QPoint(x, y), pix, from);
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}
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void drawPixmapLeft(const QPoint &p, const QPixmap &pix, const QRect &from)
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{
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return drawPixmapLeft(p.x(), p.y(), pix, from);
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}
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void drawPixmapLeft(int x, int y, int w, int h, const QPixmap &pix, const QRect &from)
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{
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drawPixmap(QRect(x, y, w, h), pix, from);
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}
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void drawPixmapLeft(const QRect &r, const QPixmap &pix, const QRect &from)
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{
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return drawPixmapLeft(r.x(), r.y(), r.width(), r.height(), pix, from);
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}
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void drawPixmapLeft(int x, int y, int outerw, const QPixmap &pix)
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{
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Q_UNUSED(outerw);
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drawPixmap(QPoint(x, y), pix);
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}
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void drawPixmapLeft(const QPoint &p, int outerw, const QPixmap &pix)
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{
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return drawPixmapLeft(p.x(), p.y(), outerw, pix);
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}
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void drawPixmapRight(int x, int y, int outerw, const QPixmap &pix, const QRect &from)
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{
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drawPixmap(
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QPoint((outerw - x - (from.width() / pix.devicePixelRatio())), y), pix, from);
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}
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void drawPixmapRight(const QPoint &p, int outerw, const QPixmap &pix, const QRect &from)
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{
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return drawPixmapRight(p.x(), p.y(), outerw, pix, from);
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}
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void drawPixmapRight(int x,
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int y,
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int w,
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int h,
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int outerw,
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const QPixmap &pix,
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const QRect &from)
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{
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drawPixmap(QRect((outerw - x - w), y, w, h), pix, from);
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}
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void drawPixmapRight(const QRect &r, int outerw, const QPixmap &pix, const QRect &from)
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{
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return drawPixmapRight(r.x(), r.y(), r.width(), r.height(), outerw, pix, from);
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}
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void drawPixmapRight(int x, int y, int outerw, const QPixmap &pix)
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{
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drawPixmap(QPoint((outerw - x - (pix.width() / pix.devicePixelRatio())), y), pix);
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}
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void drawPixmapRight(const QPoint &p, int outerw, const QPixmap &pix)
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{
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return drawPixmapRight(p.x(), p.y(), outerw, pix);
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}
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void drawAvatar(const QPixmap &pix, int w, int h, int d)
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{
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QPainterPath pp;
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pp.addEllipse((w - d) / 2, (h - d) / 2, d, d);
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QRect region((w - d) / 2, (h - d) / 2, d, d);
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setClipPath(pp);
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drawPixmap(region, pix);
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}
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void drawLetterAvatar(const QString &c,
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const QColor &penColor,
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const QColor &brushColor,
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int w,
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int h,
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int d)
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{
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QRect region((w - d) / 2, (h - d) / 2, d, d);
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setPen(Qt::NoPen);
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setBrush(brushColor);
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drawEllipse(region.center(), d / 2, d / 2);
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setBrush(Qt::NoBrush);
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drawEllipse(region.center(), d / 2, d / 2);
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setPen(penColor);
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drawText(region.translated(0, -1), Qt::AlignCenter, c);
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}
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};
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class PainterHighQualityEnabler
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{
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public:
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PainterHighQualityEnabler(Painter &p)
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: _painter(p)
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{
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static constexpr QPainter::RenderHint Hints[] = {QPainter::Antialiasing,
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QPainter::SmoothPixmapTransform,
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QPainter::TextAntialiasing,
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QPainter::HighQualityAntialiasing};
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auto hints = _painter.renderHints();
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for (const auto &hint : Hints) {
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if (!(hints & hint))
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hints_ |= hint;
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}
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if (hints_)
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_painter.setRenderHints(hints_);
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}
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~PainterHighQualityEnabler()
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{
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if (hints_)
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_painter.setRenderHints(hints_, false);
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}
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PainterHighQualityEnabler(const PainterHighQualityEnabler &other) = delete;
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PainterHighQualityEnabler &operator=(const PainterHighQualityEnabler &other) = delete;
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private:
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Painter &_painter;
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QPainter::RenderHints hints_ = 0;
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};
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