452 lines
13 KiB
C++
452 lines
13 KiB
C++
/*
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This file is part of Telegram Desktop,
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the official desktop version of Telegram messaging app, see https://telegram.org
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Telegram Desktop is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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It is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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In addition, as a special exception, the copyright holders give permission
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to link the code of portions of this program with the OpenSSL library.
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Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
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Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
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*/
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#include "stdafx.h"
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#include "ui/widgets/buttons.h"
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#include "ui/effects/ripple_animation.h"
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namespace Ui {
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LinkButton::LinkButton(QWidget *parent, const QString &text, const style::LinkButton &st) : AbstractButton(parent)
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, _text(text)
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, _textWidth(st.font->width(_text))
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, _st(st) {
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resize(_textWidth, _st.font->height);
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setCursor(style::cur_pointer);
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}
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int LinkButton::naturalWidth() const {
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return _textWidth;
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}
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void LinkButton::paintEvent(QPaintEvent *e) {
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Painter p(this);
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auto &font = ((_state & StateOver) ? _st.overFont : _st.font);
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auto &pen = ((_state & StateDown) ? _st.downColor : ((_state & StateOver) ? _st.overColor : _st.color));
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p.setFont(font);
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p.setPen(pen);
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if (_textWidth > width()) {
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p.drawText(0, font->ascent, font->elided(_text, width()));
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} else {
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p.drawText(0, font->ascent, _text);
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}
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}
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void LinkButton::setText(const QString &text) {
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_text = text;
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_textWidth = _st.font->width(_text);
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resize(_textWidth, _st.font->height);
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update();
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}
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void LinkButton::onStateChanged(int oldState, StateChangeSource source) {
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update();
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}
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RippleButton::RippleButton(QWidget *parent, const style::RippleAnimation &st) : AbstractButton(parent)
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, _st(st) {
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}
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void RippleButton::setForceRippled(bool rippled, SetForceRippledWay way) {
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if (_forceRippled != rippled) {
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_forceRippled = rippled;
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if (_forceRippled) {
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ensureRipple();
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if (_ripple->empty()) {
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_ripple->addFading();
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} else {
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_ripple->lastUnstop();
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}
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} else if (_ripple) {
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_ripple->lastStop();
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}
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}
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if (way == SetForceRippledWay::SkipAnimation && _ripple) {
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_ripple->lastFinish();
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}
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update();
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}
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void RippleButton::paintRipple(QPainter &p, int x, int y, uint64 ms) {
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if (_ripple) {
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_ripple->paint(p, x, y, width(), ms);
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if (_ripple->empty()) {
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_ripple.reset();
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}
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}
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}
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void RippleButton::onStateChanged(int oldState, StateChangeSource source) {
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update();
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auto wasDown = (oldState & StateDown);
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auto down = (_state & StateDown);
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if (!_st.showDuration || down == wasDown || _forceRippled) {
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return;
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}
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if (down && (source == StateChangeSource::ByPress)) {
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// Start a ripple only from mouse press.
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ensureRipple();
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_ripple->add(prepareRippleStartPosition());
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} else if (!down && _ripple) {
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// Finish ripple anyway.
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_ripple->lastStop();
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}
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}
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void RippleButton::ensureRipple() {
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if (!_ripple) {
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_ripple = std_::make_unique<RippleAnimation>(_st, prepareRippleMask(), [this] { update(); });
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}
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}
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QImage RippleButton::prepareRippleMask() const {
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return RippleAnimation::rectMask(size());
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}
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QPoint RippleButton::prepareRippleStartPosition() const {
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return mapFromGlobal(QCursor::pos());
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}
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RippleButton::~RippleButton() = default;
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FlatButton::FlatButton(QWidget *parent, const QString &text, const style::FlatButton &st) : RippleButton(parent, st.ripple)
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, _text(text)
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, _st(st)
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, a_over(0)
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, _a_appearance(animation(this, &FlatButton::step_appearance)) {
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if (_st.width < 0) {
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_width = textWidth() - _st.width;
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} else if (!_st.width) {
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_width = textWidth() + _st.height - _st.font->height;
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} else {
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_width = _st.width;
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}
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resize(_width, _st.height);
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}
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void FlatButton::setOpacity(float64 o) {
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_opacity = o;
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update();
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}
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float64 FlatButton::opacity() const {
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return _opacity;
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}
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void FlatButton::setText(const QString &text) {
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_text = text;
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update();
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}
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void FlatButton::setWidth(int32 w) {
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_width = w;
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if (_width < 0) {
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_width = textWidth() - _st.width;
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} else if (!_width) {
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_width = textWidth() + _st.height - _st.font->height;
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}
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resize(_width, height());
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}
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int32 FlatButton::textWidth() const {
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return _st.font->width(_text);
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}
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void FlatButton::step_appearance(float64 ms, bool timer) {
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float64 dt = ms / _st.duration;
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if (dt >= 1) {
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_a_appearance.stop();
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a_over.finish();
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} else {
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a_over.update(dt, anim::linear);
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}
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if (timer) update();
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}
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void FlatButton::onStateChanged(int oldState, StateChangeSource source) {
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RippleButton::onStateChanged(oldState, source);
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a_over.start((_state & StateOver) ? 1. : 0.);
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if (source == StateChangeSource::ByUser || source == StateChangeSource::ByPress) {
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_a_appearance.stop();
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a_over.finish();
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update();
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} else {
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_a_appearance.start();
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}
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}
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void FlatButton::paintEvent(QPaintEvent *e) {
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QPainter p(this);
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QRect r(0, height() - _st.height, width(), _st.height);
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p.setOpacity(_opacity);
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p.fillRect(r, anim::brush(_st.bgColor, _st.overBgColor, a_over.current()));
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auto ms = getms();
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paintRipple(p, 0, 0, ms);
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p.setFont((_state & StateOver) ? _st.overFont : _st.font);
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p.setRenderHint(QPainter::TextAntialiasing);
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p.setPen(anim::pen(_st.color, _st.overColor, a_over.current()));
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r.setTop(_st.textTop);
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p.drawText(r, _text, style::al_top);
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}
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RoundButton::RoundButton(QWidget *parent, const QString &text, const style::RoundButton &st) : RippleButton(parent, st.ripple)
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, _fullText(text)
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, _st(st) {
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setCursor(style::cur_pointer);
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updateText();
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}
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void RoundButton::setTextTransform(TextTransform transform) {
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_transform = transform;
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updateText();
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}
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void RoundButton::setText(const QString &text) {
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_fullText = text;
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updateText();
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}
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void RoundButton::setSecondaryText(const QString &secondaryText) {
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_fullSecondaryText = secondaryText;
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updateText();
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}
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void RoundButton::setFullWidth(int newFullWidth) {
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_fullWidthOverride = newFullWidth;
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resizeToText();
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}
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void RoundButton::updateText() {
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if (_transform == TextTransform::ToUpper) {
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_text = _fullText.toUpper();
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_secondaryText = _fullSecondaryText.toUpper();
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} else {
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_text = _fullText;
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_secondaryText = _fullSecondaryText;
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}
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_textWidth = _text.isEmpty() ? 0 : _st.font->width(_text);
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_secondaryTextWidth = _secondaryText.isEmpty() ? 0 : _st.font->width(_secondaryText);
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resizeToText();
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}
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void RoundButton::resizeToText() {
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int innerWidth = contentWidth();
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if (_fullWidthOverride < 0) {
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resize(innerWidth - _fullWidthOverride, _st.height + _st.padding.top() + _st.padding.bottom());
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} else if (_st.width <= 0) {
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resize(innerWidth - _st.width + _st.padding.left() + _st.padding.right(), _st.height + _st.padding.top() + _st.padding.bottom());
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} else {
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if (_st.width < innerWidth + (_st.height - _st.font->height)) {
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_text = _st.font->elided(_fullText, qMax(_st.width - (_st.height - _st.font->height), 1));
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innerWidth = _st.font->width(_text);
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}
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resize(_st.width + _st.padding.left() + _st.padding.right(), _st.height + _st.padding.top() + _st.padding.bottom());
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}
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}
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int RoundButton::contentWidth() const {
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int result = _textWidth + _secondaryTextWidth;
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if (_textWidth > 0 && _secondaryTextWidth > 0) {
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result += _st.secondarySkip;
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}
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return result;
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}
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void RoundButton::paintEvent(QPaintEvent *e) {
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Painter p(this);
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auto innerWidth = contentWidth();
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auto rounded = rect().marginsRemoved(_st.padding);
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if (_fullWidthOverride < 0) {
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rounded = QRect(0, rounded.top(), innerWidth - _fullWidthOverride, rounded.height());
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}
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App::roundRect(p, myrtlrect(rounded), _st.textBg, ImageRoundRadius::Small);
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auto over = (_state & StateOver);
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auto down = (_state & StateDown);
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if (over || down) {
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App::roundRect(p, myrtlrect(rounded), _st.textBgOver, ImageRoundRadius::Small);
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}
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auto ms = getms();
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paintRipple(p, rounded.x(), rounded.y(), ms);
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p.setFont(_st.font);
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int textLeft = _st.padding.left() + ((width() - innerWidth - _st.padding.left() - _st.padding.right()) / 2);
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if (_fullWidthOverride < 0) {
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textLeft = -_fullWidthOverride / 2;
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}
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int textTop = _st.padding.top() + _st.textTop;
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if (!_text.isEmpty()) {
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p.setPen((over || down) ? _st.textFgOver : _st.textFg);
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p.drawTextLeft(textLeft, textTop, width(), _text);
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}
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if (!_secondaryText.isEmpty()) {
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textLeft += _textWidth + (_textWidth ? _st.secondarySkip : 0);
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p.setPen((over || down) ? _st.secondaryTextFgOver : _st.secondaryTextFg);
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p.drawTextLeft(textLeft, textTop, width(), _secondaryText);
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}
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_st.icon.paint(p, QPoint(_st.padding.left(), _st.padding.right()), width());
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}
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QImage RoundButton::prepareRippleMask() const {
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auto innerWidth = contentWidth();
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auto rounded = rtlrect(rect().marginsRemoved(_st.padding), width());
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if (_fullWidthOverride < 0) {
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rounded = QRect(0, rounded.top(), innerWidth - _fullWidthOverride, rounded.height());
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}
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return RippleAnimation::roundRectMask(rounded.size(), st::buttonRadius);
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}
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QPoint RoundButton::prepareRippleStartPosition() const {
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return mapFromGlobal(QCursor::pos()) - QPoint(_st.padding.left(), _st.padding.top());
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}
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IconButton::IconButton(QWidget *parent, const style::IconButton &st) : RippleButton(parent, st.ripple)
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, _st(st) {
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resize(_st.width, _st.height);
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setCursor(style::cur_pointer);
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}
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void IconButton::setIcon(const style::icon *icon, const style::icon *iconOver) {
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_iconOverride = icon;
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_iconOverrideOver = iconOver;
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update();
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}
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void IconButton::paintEvent(QPaintEvent *e) {
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Painter p(this);
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auto ms = getms();
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paintRipple(p, _st.rippleAreaPosition.x(), _st.rippleAreaPosition.y(), ms);
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auto down = (_state & StateDown);
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auto overIconOpacity = (down || forceRippled()) ? 1. : _a_over.current(getms(), (_state & StateOver) ? 1. : 0.);
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auto overIcon = [this] {
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if (_iconOverrideOver) {
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return _iconOverrideOver;
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} else if (!_st.iconOver.empty()) {
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return &_st.iconOver;
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} else if (_iconOverride) {
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return _iconOverride;
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}
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return &_st.icon;
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};
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auto justIcon = [this] {
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if (_iconOverride) {
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return _iconOverride;
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}
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return &_st.icon;
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};
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auto icon = (overIconOpacity == 1.) ? overIcon() : justIcon();
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auto position = _st.iconPosition;
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if (position.x() < 0) {
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position.setX((width() - icon->width()) / 2);
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}
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if (position.y() < 0) {
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position.setY((height() - icon->height()) / 2);
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}
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icon->paint(p, position, width());
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if (overIconOpacity > 0. && overIconOpacity < 1.) {
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auto iconOver = overIcon();
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if (iconOver != icon) {
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p.setOpacity(overIconOpacity);
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iconOver->paint(p, position, width());
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}
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}
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}
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void IconButton::onStateChanged(int oldState, StateChangeSource source) {
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RippleButton::onStateChanged(oldState, source);
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auto over = (_state & StateOver);
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if (over != (oldState & StateOver)) {
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if (_st.duration) {
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auto from = over ? 0. : 1.;
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auto to = over ? 1. : 0.;
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_a_over.start([this] { update(); }, from, to, _st.duration);
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} else {
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update();
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}
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}
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}
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QPoint IconButton::prepareRippleStartPosition() const {
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return mapFromGlobal(QCursor::pos()) - _st.rippleAreaPosition;
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}
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QImage IconButton::prepareRippleMask() const {
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return RippleAnimation::ellipseMask(QSize(_st.rippleAreaSize, _st.rippleAreaSize));
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}
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LeftOutlineButton::LeftOutlineButton(QWidget *parent, const QString &text, const style::OutlineButton &st) : RippleButton(parent, st.ripple)
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, _text(text)
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, _fullText(text)
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, _textWidth(st.font->width(_text))
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, _fullTextWidth(_textWidth)
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, _st(st) {
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resizeToWidth(_textWidth + _st.padding.left() + _st.padding.right());
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setCursor(style::cur_pointer);
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}
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void LeftOutlineButton::setText(const QString &text) {
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_text = text;
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_fullText = text;
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_fullTextWidth = _textWidth = _st.font->width(_text);
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resizeToWidth(width());
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update();
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}
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int LeftOutlineButton::resizeGetHeight(int newWidth) {
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int availableWidth = qMax(newWidth - _st.padding.left() - _st.padding.right(), 1);
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if ((availableWidth < _fullTextWidth) || (_textWidth < availableWidth)) {
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_text = _st.font->elided(_fullText, availableWidth);
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_textWidth = _st.font->width(_text);
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}
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return _st.padding.top() + _st.font->height + _st.padding.bottom();
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}
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void LeftOutlineButton::paintEvent(QPaintEvent *e) {
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Painter p(this);
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bool over = (_state & StateOver), down = (_state & StateDown);
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if (width() > _st.outlineWidth) {
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p.fillRect(rtlrect(_st.outlineWidth, 0, width() - _st.outlineWidth, height(), width()), (over || down) ? _st.textBgOver : _st.textBg);
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paintRipple(p, 0, 0, getms());
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p.fillRect(rtlrect(0, 0, _st.outlineWidth, height(), width()), (over || down) ? _st.outlineFgOver : _st.outlineFg);
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}
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p.setFont(_st.font);
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p.setPen((over || down) ? _st.textFgOver : _st.textFg);
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p.drawTextLeft(_st.padding.left(), _st.padding.top(), width(), _text, _textWidth);
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}
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} // namespace Ui
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