diff --git a/src/ui/Painter.h b/src/ui/Painter.h
new file mode 100644
index 00000000..8de39651
--- /dev/null
+++ b/src/ui/Painter.h
@@ -0,0 +1,161 @@
+#pragma once
+
+#include <QFontMetrics>
+#include <QPaintDevice>
+#include <QPainter>
+
+class Painter : public QPainter
+{
+public:
+ explicit Painter(QPaintDevice *device)
+ : QPainter(device)
+ {}
+
+ void drawTextLeft(int x, int y, const QString &text)
+ {
+ QFontMetrics m(fontMetrics());
+ drawText(x, y + m.ascent(), text);
+ }
+
+ void drawTextRight(int x, int y, int outerw, const QString &text, int textWidth = -1)
+ {
+ QFontMetrics m(fontMetrics());
+ if (textWidth < 0)
+ textWidth = m.width(text);
+ drawText((outerw - x - textWidth), y + m.ascent(), text);
+ }
+
+ void drawPixmapLeft(int x, int y, const QPixmap &pix, const QRect &from)
+ {
+ drawPixmap(QPoint(x, y), pix, from);
+ }
+
+ void drawPixmapLeft(const QPoint &p, const QPixmap &pix, const QRect &from)
+ {
+ return drawPixmapLeft(p.x(), p.y(), pix, from);
+ }
+
+ void drawPixmapLeft(int x, int y, int w, int h, const QPixmap &pix, const QRect &from)
+ {
+ drawPixmap(QRect(x, y, w, h), pix, from);
+ }
+
+ void drawPixmapLeft(const QRect &r, const QPixmap &pix, const QRect &from)
+ {
+ return drawPixmapLeft(r.x(), r.y(), r.width(), r.height(), pix, from);
+ }
+
+ void drawPixmapLeft(int x, int y, int outerw, const QPixmap &pix)
+ {
+ Q_UNUSED(outerw);
+ drawPixmap(QPoint(x, y), pix);
+ }
+
+ void drawPixmapLeft(const QPoint &p, int outerw, const QPixmap &pix)
+ {
+ return drawPixmapLeft(p.x(), p.y(), outerw, pix);
+ }
+
+ void drawPixmapRight(int x, int y, int outerw, const QPixmap &pix, const QRect &from)
+ {
+ drawPixmap(
+ QPoint((outerw - x - (from.width() / pix.devicePixelRatio())), y), pix, from);
+ }
+
+ void drawPixmapRight(const QPoint &p, int outerw, const QPixmap &pix, const QRect &from)
+ {
+ return drawPixmapRight(p.x(), p.y(), outerw, pix, from);
+ }
+ void drawPixmapRight(int x,
+ int y,
+ int w,
+ int h,
+ int outerw,
+ const QPixmap &pix,
+ const QRect &from)
+ {
+ drawPixmap(QRect((outerw - x - w), y, w, h), pix, from);
+ }
+
+ void drawPixmapRight(const QRect &r, int outerw, const QPixmap &pix, const QRect &from)
+ {
+ return drawPixmapRight(r.x(), r.y(), r.width(), r.height(), outerw, pix, from);
+ }
+
+ void drawPixmapRight(int x, int y, int outerw, const QPixmap &pix)
+ {
+ drawPixmap(QPoint((outerw - x - (pix.width() / pix.devicePixelRatio())), y), pix);
+ }
+
+ void drawPixmapRight(const QPoint &p, int outerw, const QPixmap &pix)
+ {
+ return drawPixmapRight(p.x(), p.y(), outerw, pix);
+ }
+
+ void drawAvatar(const QPixmap &pix, int w, int h, int d)
+ {
+ QPainterPath pp;
+ pp.addEllipse((w - d) / 2, (h - d) / 2, d, d);
+
+ QRect region((w - d) / 2, (h - d) / 2, d, d);
+
+ setClipPath(pp);
+ drawPixmap(region, pix);
+ }
+
+ void drawLetterAvatar(const QString &c,
+ const QColor &penColor,
+ const QColor &brushColor,
+ int w,
+ int h,
+ int d)
+ {
+ QRect region((w - d) / 2, (h - d) / 2, d, d);
+
+ setPen(Qt::NoPen);
+ setBrush(brushColor);
+
+ drawEllipse(region.center(), d / 2, d / 2);
+
+ setBrush(Qt::NoBrush);
+ drawEllipse(region.center(), d / 2, d / 2);
+
+ setPen(penColor);
+ drawText(region.translated(0, -1), Qt::AlignCenter, c);
+ }
+};
+
+class PainterHighQualityEnabler
+{
+public:
+ PainterHighQualityEnabler(Painter &p)
+ : _painter(p)
+ {
+ static constexpr QPainter::RenderHint Hints[] = {QPainter::Antialiasing,
+ QPainter::SmoothPixmapTransform,
+ QPainter::TextAntialiasing,
+ QPainter::HighQualityAntialiasing};
+
+ auto hints = _painter.renderHints();
+ for (const auto &hint : Hints) {
+ if (!(hints & hint))
+ hints_ |= hint;
+ }
+
+ if (hints_)
+ _painter.setRenderHints(hints_);
+ }
+
+ ~PainterHighQualityEnabler()
+ {
+ if (hints_)
+ _painter.setRenderHints(hints_, false);
+ }
+
+ PainterHighQualityEnabler(const PainterHighQualityEnabler &other) = delete;
+ PainterHighQualityEnabler &operator=(const PainterHighQualityEnabler &other) = delete;
+
+private:
+ Painter &_painter;
+ QPainter::RenderHints hints_ = 0;
+};
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