tdesktop/Telegram/SourceFiles/ui/widgets/checkbox.cpp

264 lines
8.2 KiB
C++

/*
This file is part of Telegram Desktop,
the official desktop version of Telegram messaging app, see https://telegram.org
Telegram Desktop is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
It is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
In addition, as a special exception, the copyright holders give permission
to link the code of portions of this program with the OpenSSL library.
Full license: https://github.com/telegramdesktop/tdesktop/blob/master/LICENSE
Copyright (c) 2014-2017 John Preston, https://desktop.telegram.org
*/
#include "ui/widgets/checkbox.h"
#include "lang.h"
#include "ui/effects/ripple_animation.h"
namespace Ui {
namespace {
TextParseOptions _checkboxOptions = {
TextParseMultiline, // flags
0, // maxw
0, // maxh
Qt::LayoutDirectionAuto, // dir
};
} // namespace
Checkbox::Checkbox(QWidget *parent, const QString &text, bool checked, const style::Checkbox &st) : RippleButton(parent, st.ripple)
, _st(st)
, _text(_st.style, text, _checkboxOptions)
, _checked(checked) {
if (_st.width <= 0) {
resizeToWidth(_text.maxWidth() - _st.width);
} else {
resizeToWidth(_st.width);
}
_checkRect = myrtlrect(_st.margin.left(), _st.margin.top(), _st.diameter, _st.diameter);
connect(this, SIGNAL(clicked()), this, SLOT(onClicked()));
setCursor(style::cur_pointer);
}
bool Checkbox::checked() const {
return _checked;
}
void Checkbox::setChecked(bool checked, NotifyAboutChange notify) {
if (_checked != checked) {
_checked = checked;
_a_checked.start([this] { update(_checkRect); }, _checked ? 0. : 1., _checked ? 1. : 0., _st.duration);
if (notify == NotifyAboutChange::Notify) {
emit changed();
}
}
}
void Checkbox::finishAnimations() {
_a_checked.finish();
}
int Checkbox::naturalWidth() const {
return _st.textPosition.x() + _text.maxWidth();
}
void Checkbox::paintEvent(QPaintEvent *e) {
Painter p(this);
auto ms = getms();
auto active = _a_checked.current(ms, _checked ? 1. : 0.);
auto color = anim::color(_st.rippleBg, _st.rippleBgActive, active);
paintRipple(p, _st.rippleAreaPosition.x(), _st.rippleAreaPosition.y(), ms, &color);
if (_checkRect.intersects(e->rect())) {
auto pen = anim::pen(_st.checkFg, _st.checkFgActive, active);
pen.setWidth(_st.thickness);
p.setPen(pen);
p.setBrush(anim::brush(_st.checkBg, anim::color(_st.checkFg, _st.checkFgActive, active), active));
{
PainterHighQualityEnabler hq(p);
p.drawRoundedRect(QRectF(_checkRect).marginsRemoved(QMarginsF(_st.thickness / 2., _st.thickness / 2., _st.thickness / 2., _st.thickness / 2.)), st::buttonRadius - (_st.thickness / 2.), st::buttonRadius - (_st.thickness / 2.));
}
if (active > 0) {
_st.checkIcon.paint(p, QPoint(_st.margin.left(), _st.margin.top()), width());
}
}
if (_checkRect.contains(e->rect())) return;
auto textWidth = qMax(width() - (_st.textPosition.x() + (_st.textPosition.x() - _st.diameter)), 1);
p.setPen(_st.textFg);
_text.drawLeftElided(p, _st.margin.left() + _st.textPosition.x(), _st.margin.top() + _st.textPosition.y(), textWidth, width());
}
void Checkbox::onClicked() {
if (isDisabled()) return;
setChecked(!checked());
}
void Checkbox::onStateChanged(State was, StateChangeSource source) {
RippleButton::onStateChanged(was, source);
if (isDisabled() && !(was & StateFlag::Disabled)) {
setCursor(style::cur_default);
} else if (!isDisabled() && (was & StateFlag::Disabled)) {
setCursor(style::cur_pointer);
}
}
int Checkbox::resizeGetHeight(int newWidth) {
return _st.height;
}
QImage Checkbox::prepareRippleMask() const {
return RippleAnimation::ellipseMask(QSize(_st.rippleAreaSize, _st.rippleAreaSize));
}
QPoint Checkbox::prepareRippleStartPosition() const {
auto position = mapFromGlobal(QCursor::pos()) - _st.rippleAreaPosition;
if (QRect(0, 0, _st.rippleAreaSize, _st.rippleAreaSize).contains(position)) {
return position;
}
return disabledRippleStartPosition();
}
void RadiobuttonGroup::setValue(int value) {
if (_hasValue && _value == value) {
return;
}
_hasValue = true;
_value = value;
for (auto button : _buttons) {
button->handleNewGroupValue(_value);
}
if (_changedCallback) {
_changedCallback(_value);
}
}
Radiobutton::Radiobutton(QWidget *parent, const std::shared_ptr<RadiobuttonGroup> &group, int value, const QString &text, const style::Checkbox &st) : RippleButton(parent, st.ripple)
, _group(group)
, _value(value)
, _st(st)
, _text(_st.style, text, _checkboxOptions)
, _checked(_group->hasValue() && _group->value() == _value) {
_group->registerButton(this);
if (_st.width <= 0) {
resizeToWidth(_text.maxWidth() - _st.width);
} else {
resizeToWidth(_st.width);
}
_checkRect = myrtlrect(_st.margin.left(), _st.margin.top(), _st.diameter, _st.diameter);
}
void Radiobutton::handleNewGroupValue(int value) {
auto checked = (value == _value);
if (_checked != checked) {
_checked = checked;
_a_checked.start([this] { update(_checkRect); }, _checked ? 0. : 1., _checked ? 1. : 0., _st.duration);
}
}
int Radiobutton::naturalWidth() const {
return _st.textPosition.x() + _text.maxWidth();
}
void Radiobutton::paintEvent(QPaintEvent *e) {
Painter p(this);
auto ms = getms();
auto active = _a_checked.current(ms, _checked ? 1. : 0.);
auto color = anim::color(_st.rippleBg, _st.rippleBgActive, active);
paintRipple(p, _st.rippleAreaPosition.x(), _st.rippleAreaPosition.y(), ms, &color);
if (_checkRect.intersects(e->rect())) {
PainterHighQualityEnabler hq(p);
auto pen = anim::pen(_st.checkFg, _st.checkFgActive, active);
pen.setWidth(_st.thickness);
p.setPen(pen);
p.setBrush(_st.checkBg);
//int32 skip = qCeil(_st.thickness / 2.);
//p.drawEllipse(_checkRect.marginsRemoved(QMargins(skip, skip, skip, skip)));
p.drawEllipse(QRectF(_checkRect).marginsRemoved(QMarginsF(_st.thickness / 2., _st.thickness / 2., _st.thickness / 2., _st.thickness / 2.)));
if (active > 0) {
p.setPen(Qt::NoPen);
p.setBrush(anim::brush(_st.checkFg, _st.checkFgActive, active));
auto skip0 = _checkRect.width() / 2., skip1 = _st.radioSkip / 10., checkSkip = skip0 * (1. - active) + skip1 * active;
p.drawEllipse(QRectF(_checkRect).marginsRemoved(QMarginsF(checkSkip, checkSkip, checkSkip, checkSkip)));
//int32 fskip = qFloor(checkSkip), cskip = qCeil(checkSkip);
//if (2 * fskip < _checkRect.width()) {
// if (fskip != cskip) {
// p.setOpacity(float64(cskip) - checkSkip);
// p.drawEllipse(_checkRect.marginsRemoved(QMargins(fskip, fskip, fskip, fskip)));
// p.setOpacity(1.);
// }
// if (2 * cskip < _checkRect.width()) {
// p.drawEllipse(_checkRect.marginsRemoved(QMargins(cskip, cskip, cskip, cskip)));
// }
//}
}
}
if (_checkRect.contains(e->rect())) return;
auto textWidth = qMax(width() - (_st.textPosition.x() + (_st.textPosition.x() - _st.diameter)), 1);
p.setPen(_st.textFg);
_text.drawLeftElided(p, _st.margin.left() + _st.textPosition.x(), _st.margin.top() + _st.textPosition.y(), textWidth, width());
}
void Radiobutton::onStateChanged(State was, StateChangeSource source) {
RippleButton::onStateChanged(was, source);
if (isDisabled() && !(was & StateFlag::Disabled)) {
setCursor(style::cur_default);
} else if (!isDisabled() && (was & StateFlag::Disabled)) {
setCursor(style::cur_pointer);
}
auto now = state();
if (!isDisabled() && (was & StateFlag::Over) && (now & StateFlag::Over)) {
if ((was & StateFlag::Down) && !(now & StateFlag::Down)) {
_group->setValue(_value);
}
}
}
int Radiobutton::resizeGetHeight(int newWidth) {
return _st.height;
}
QImage Radiobutton::prepareRippleMask() const {
return RippleAnimation::ellipseMask(QSize(_st.rippleAreaSize, _st.rippleAreaSize));
}
QPoint Radiobutton::prepareRippleStartPosition() const {
auto position = mapFromGlobal(QCursor::pos()) - _st.rippleAreaPosition;
if (QRect(0, 0, _st.rippleAreaSize, _st.rippleAreaSize).contains(position)) {
return position;
}
return disabledRippleStartPosition();
}
Radiobutton::~Radiobutton() {
_group->unregisterButton(this);
}
} // namespace Ui