119 lines
4.1 KiB
C++
119 lines
4.1 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop application for the Telegram messaging service.
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For license and copyright information please follow this link:
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https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
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*/
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#pragma once
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#include "styles/style_basic.h"
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#include <QtCore/QPoint>
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#include <QtGui/QPainter>
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class Painter : public QPainter {
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public:
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explicit Painter(QPaintDevice *device) : QPainter(device) {
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}
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void drawTextLeft(int x, int y, int outerw, const QString &text, int textWidth = -1) {
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QFontMetrics m(fontMetrics());
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if (style::RightToLeft() && textWidth < 0) textWidth = m.width(text);
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drawText(style::RightToLeft() ? (outerw - x - textWidth) : 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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QFontMetrics m(fontMetrics());
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if (!style::RightToLeft() && textWidth < 0) textWidth = m.width(text);
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drawText(style::RightToLeft() ? x : (outerw - x - textWidth), y + m.ascent(), text);
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}
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void drawPixmapLeft(int x, int y, int outerw, const QPixmap &pix, const QRect &from) {
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drawPixmap(QPoint(style::RightToLeft() ? (outerw - x - (from.width() / pix.devicePixelRatio())) : x, y), pix, from);
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}
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void drawPixmapLeft(const QPoint &p, int outerw, const QPixmap &pix, const QRect &from) {
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return drawPixmapLeft(p.x(), p.y(), outerw, pix, from);
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}
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void drawPixmapLeft(int x, int y, int w, int h, int outerw, const QPixmap &pix, const QRect &from) {
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drawPixmap(QRect(style::RightToLeft() ? (outerw - x - w) : x, y, w, h), pix, from);
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}
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void drawPixmapLeft(const QRect &r, int outerw, const QPixmap &pix, const QRect &from) {
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return drawPixmapLeft(r.x(), r.y(), r.width(), r.height(), outerw, 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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drawPixmap(QPoint(style::RightToLeft() ? (outerw - x - (pix.width() / pix.devicePixelRatio())) : 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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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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drawPixmap(QPoint(style::RightToLeft() ? x : (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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return drawPixmapRight(p.x(), p.y(), outerw, pix, from);
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}
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void drawPixmapRight(int x, int y, int w, int h, int outerw, const QPixmap &pix, const QRect &from) {
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drawPixmap(QRect(style::RightToLeft() ? x : (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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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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drawPixmap(QPoint(style::RightToLeft() ? x : (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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return drawPixmapRight(p.x(), p.y(), outerw, pix);
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}
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void setTextPalette(const style::TextPalette &palette) {
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_textPalette = &palette;
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}
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void restoreTextPalette() {
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_textPalette = nullptr;
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}
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const style::TextPalette &textPalette() const {
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return _textPalette ? *_textPalette : st::defaultTextPalette;
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}
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private:
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const style::TextPalette *_textPalette = nullptr;
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};
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class PainterHighQualityEnabler {
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public:
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PainterHighQualityEnabler(QPainter &p) : _painter(p) {
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static constexpr QPainter::RenderHint Hints[] = {
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QPainter::Antialiasing,
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QPainter::SmoothPixmapTransform,
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QPainter::TextAntialiasing,
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QPainter::HighQualityAntialiasing
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};
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const 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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}
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if (_hints) {
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_painter.setRenderHints(_hints);
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}
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}
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PainterHighQualityEnabler(
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const PainterHighQualityEnabler &other) = delete;
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PainterHighQualityEnabler &operator=(
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const PainterHighQualityEnabler &other) = delete;
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~PainterHighQualityEnabler() {
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if (_hints) {
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_painter.setRenderHints(_hints, false);
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}
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}
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private:
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QPainter &_painter;
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QPainter::RenderHints _hints = 0;
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};
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