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

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/*
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.
2015-10-03 13:16:42 +00:00
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
2016-02-08 10:56:18 +00:00
Copyright (c) 2014-2016 John Preston, https://desktop.telegram.org
*/
#include "stdafx.h"
#include "ui/widgets/checkbox.h"
#include "lang.h"
namespace Ui {
namespace {
class RadiobuttonGroup : public QMap<Radiobutton*, bool> {
using Parent = QMap<Radiobutton*, bool>;
public:
RadiobuttonGroup(const QString &name) : _name(name) {
}
void remove(Radiobutton * const &radio);
int32 val() const {
return _val;
}
void setVal(int32 val) {
_val = val;
}
private:
QString _name;
int _val = 0;
};
class Radiobuttons : public QMap<QString, RadiobuttonGroup*> {
using Parent = QMap<QString, RadiobuttonGroup*>;
public:
RadiobuttonGroup *reg(const QString &group) {
typename Parent::const_iterator i = Parent::constFind(group);
if (i == Parent::cend()) {
i = Parent::insert(group, new RadiobuttonGroup(group));
}
return i.value();
}
int remove(const QString &group) {
typename Parent::iterator i = Parent::find(group);
if (i != Parent::cend()) {
delete i.value();
Parent::erase(i);
return 1;
}
return 0;
}
~Radiobuttons() {
for (typename Parent::const_iterator i = Parent::cbegin(), e = Parent::cend(); i != e; ++i) {
delete *i;
}
}
};
Radiobuttons radiobuttons;
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} // namespace
void RadiobuttonGroup::remove(Radiobutton * const &radio) {
Parent::remove(radio);
if (isEmpty()) {
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radiobuttons.remove(_name);
}
}
Checkbox::Checkbox(QWidget *parent, const QString &text, bool checked, const style::Checkbox &st) : AbstractButton(parent)
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, _st(st)
, a_over(0)
, a_checked(checked ? 1 : 0)
, _a_over(animation(this, &Checkbox::step_over))
, _a_checked(animation(this, &Checkbox::step_checked))
, _text(text)
, _fullText(text)
, _textWidth(st.font->width(text))
, _checked(checked) {
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if (_st.width <= 0) {
resize(_textWidth - _st.width, _st.height);
} else {
if (_st.width < _st.textPosition.x() + _textWidth + (_st.textPosition.x() - _st.diameter)) {
_text = _st.font->elided(_fullText, qMax(_st.width - (_st.textPosition.x() + (_st.textPosition.x() - _st.diameter)), 1));
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_textWidth = _st.font->width(_text);
}
resize(_st.width, _st.height);
}
_checkRect = myrtlrect(0, 0, _st.diameter, _st.diameter);
connect(this, SIGNAL(clicked()), this, SLOT(onClicked()));
setCursor(style::cur_pointer);
setAttribute(Qt::WA_OpaquePaintEvent);
}
bool Checkbox::checked() const {
return _checked;
}
void Checkbox::setChecked(bool checked, NotifyAboutChange notify) {
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if (_checked != checked) {
_checked = checked;
if (_checked) {
a_checked.start(1);
} else {
a_checked.start(0);
}
_a_checked.start();
if (notify == NotifyAboutChange::Notify) {
emit changed();
}
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}
}
void Checkbox::finishAnimations() {
a_checked.finish();
_a_checked.stop();
}
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void Checkbox::step_over(float64 ms, bool timer) {
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float64 dt = ms / _st.duration;
if (dt >= 1) {
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_a_over.stop();
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a_over.finish();
} else {
a_over.update(dt, anim::linear);
}
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if (timer) update(_checkRect);
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}
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void Checkbox::step_checked(float64 ms, bool timer) {
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float64 dt = ms / _st.duration;
if (dt >= 1) {
a_checked.finish();
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_a_checked.stop();
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} else {
a_checked.update(dt, anim::linear);
}
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if (timer) update(_checkRect);
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}
int Checkbox::naturalWidth() const {
return _st.textPosition.x() + _st.font->width(_fullText);
}
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void Checkbox::paintEvent(QPaintEvent *e) {
Painter p(this);
float64 over = a_over.current(), checked = a_checked.current();
bool cnone = (over == 0. && checked == 0.), cover = (over == 1. && checked == 0.), cchecked = (checked == 1.);
bool cbad = !cnone && !cover && !cchecked;
QColor color;
if (cbad) {
float64 onone = (1. - over) * (1. - checked), oover = over * (1. - checked), ochecked = checked;
color.setRedF(_st.checkFg->c.redF() * onone + _st.checkFgOver->c.redF() * oover + _st.checkFgActive->c.redF() * ochecked);
color.setGreenF(_st.checkFg->c.greenF() * onone + _st.checkFgOver->c.greenF() * oover + _st.checkFgActive->c.greenF() * ochecked);
color.setBlueF(_st.checkFg->c.blueF() * onone + _st.checkFgOver->c.blueF() * oover + _st.checkFgActive->c.blueF() * ochecked);
}
QRect r(e->rect());
p.setClipRect(r);
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p.fillRect(r, _st.textBg);
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if (_checkRect.intersects(r)) {
p.setRenderHint(QPainter::HighQualityAntialiasing);
QPen pen;
if (cbad) {
pen = QPen(color);
} else {
pen = (cnone ? _st.checkFg : (cover ? _st.checkFgOver : _st.checkFgActive))->p;
color = (cnone ? _st.checkFg : (cover ? _st.checkFgOver : _st.checkFgActive))->c;
}
pen.setWidth(_st.thickness);
p.setPen(pen);
if (checked > 0) {
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color.setRedF(color.redF() * checked + _st.checkBg->c.redF() * (1. - checked));
color.setGreenF(color.greenF() * checked + _st.checkBg->c.greenF() * (1. - checked));
color.setBlueF(color.blueF() * checked + _st.checkBg->c.blueF() * (1. - checked));
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p.setBrush(color);
} else {
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p.setBrush(_st.checkBg);
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}
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.));
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p.setRenderHint(QPainter::HighQualityAntialiasing, false);
if (checked > 0) {
_st.checkIcon.paint(p, QPoint(0, 0), width());
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}
}
if (_checkRect.contains(r)) return;
p.setPen(_st.textFg);
p.setFont(_st.font);
p.drawTextLeft(_st.textPosition.x(), _st.textPosition.y(), width(), _text, _textWidth);
}
void Checkbox::onClicked() {
if (_state & StateDisabled) return;
setChecked(!checked());
}
void Checkbox::onStateChanged(int oldState, StateChangeSource source) {
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if ((_state & StateOver) && !(oldState & StateOver)) {
a_over.start(1);
_a_over.start();
} else if (!(_state & StateOver) && (oldState & StateOver)) {
a_over.start(0);
_a_over.start();
}
if ((_state & StateDisabled) && !(oldState & StateDisabled)) {
setCursor(style::cur_default);
} else if (!(_state & StateDisabled) && (oldState & StateDisabled)) {
setCursor(style::cur_pointer);
}
}
Radiobutton::Radiobutton(QWidget *parent, const QString &group, int32 value, const QString &text, bool checked, const style::Radiobutton &st) : AbstractButton(parent)
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, _st(st)
, a_over(0)
, a_checked(checked ? 1 : 0)
, _a_over(animation(this, &Radiobutton::step_over))
, _a_checked(animation(this, &Radiobutton::step_checked))
, _text(text)
, _fullText(text)
, _textWidth(st.font->width(text))
, _checked(checked)
, _group(radiobuttons.reg(group))
, _value(value) {
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if (_st.width <= 0) {
resize(_textWidth - _st.width, _st.height);
} else {
if (_st.width < _st.textPosition.x() + _textWidth + (_st.textPosition.x() - _st.diameter)) {
_text = _st.font->elided(_fullText, qMax(_st.width - (_st.textPosition.x() + (_st.textPosition.x() - _st.diameter)), 1));
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_textWidth = _st.font->width(_text);
}
resize(_st.width, _st.height);
}
_checkRect = myrtlrect(0, 0, _st.diameter, _st.diameter);
connect(this, SIGNAL(clicked()), this, SLOT(onClicked()));
setCursor(style::cur_pointer);
setAttribute(Qt::WA_OpaquePaintEvent);
reinterpret_cast<RadiobuttonGroup*>(_group)->insert(this, true);
if (_checked) onChanged();
}
bool Radiobutton::checked() const {
return _checked;
}
void Radiobutton::setChecked(bool checked) {
if (_checked != checked) {
_checked = checked;
if (_checked) {
a_checked.start(1);
} else {
a_checked.start(0);
}
_a_checked.start();
onChanged();
emit changed();
}
}
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void Radiobutton::step_over(float64 ms, bool timer) {
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float64 dt = ms / _st.duration;
if (dt >= 1) {
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_a_over.stop();
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a_over.finish();
} else {
a_over.update(dt, anim::linear);
}
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if (timer) update(_checkRect);
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}
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void Radiobutton::step_checked(float64 ms, bool timer) {
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float64 dt = ms / _st.duration;
if (dt >= 1) {
a_checked.finish();
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_a_checked.stop();
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} else {
a_checked.update(dt, anim::linear);
}
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if (timer) update(_checkRect);
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}
void Radiobutton::paintEvent(QPaintEvent *e) {
Painter p(this);
float64 over = a_over.current(), checked = a_checked.current();
bool cnone = (over == 0. && checked == 0.), cover = (over == 1. && checked == 0.), cchecked = (checked == 1.);
bool cbad = !cnone && !cover && !cchecked;
QColor color;
if (cbad) {
float64 onone = (1. - over) * (1. - checked), oover = over * (1. - checked), ochecked = checked;
color.setRedF(_st.checkFg->c.redF() * onone + _st.checkFgOver->c.redF() * oover + _st.checkFgActive->c.redF() * ochecked);
color.setGreenF(_st.checkFg->c.greenF() * onone + _st.checkFgOver->c.greenF() * oover + _st.checkFgActive->c.greenF() * ochecked);
color.setBlueF(_st.checkFg->c.blueF() * onone + _st.checkFgOver->c.blueF() * oover + _st.checkFgActive->c.blueF() * ochecked);
}
QRect r(e->rect());
p.setClipRect(r);
p.fillRect(r, _st.textBg->b);
if (_checkRect.intersects(r)) {
p.setRenderHint(QPainter::HighQualityAntialiasing);
QPen pen;
if (cbad) {
pen = QPen(color);
} else {
pen = (cnone ? _st.checkFg : (cover ? _st.checkFgOver : _st.checkFgActive))->p;
}
pen.setWidth(_st.thickness);
p.setPen(pen);
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p.setBrush(_st.checkBg);
//int32 skip = qCeil(_st.thickness / 2.);
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//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.)));
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if (checked > 0) {
p.setPen(Qt::NoPen);
if (cbad) {
p.setBrush(color);
} else {
p.setBrush(cnone ? _st.checkFg : (cover ? _st.checkFgOver : _st.checkFgActive));
}
float64 skip0 = _checkRect.width() / 2., skip1 = _st.checkSkip / 10., checkSkip = skip0 * (1. - checked) + skip1 * checked;
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)));
// }
//}
}
p.setRenderHint(QPainter::HighQualityAntialiasing, false);
}
if (_checkRect.contains(r)) return;
p.setPen(_st.textFg);
p.setFont(_st.font);
p.drawTextLeft(_st.textPosition.x(), _st.textPosition.y(), width(), _text, _textWidth);
}
void Radiobutton::onClicked() {
if (_state & StateDisabled) return;
setChecked(!checked());
}
void Radiobutton::onStateChanged(int oldState, StateChangeSource source) {
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if ((_state & StateOver) && !(oldState & StateOver)) {
a_over.start(1);
_a_over.start();
} else if (!(_state & StateOver) && (oldState & StateOver)) {
a_over.start(0);
_a_over.start();
}
if ((_state & StateDisabled) && !(oldState & StateDisabled)) {
setCursor(style::cur_default);
} else if (!(_state & StateDisabled) && (oldState & StateDisabled)) {
setCursor(style::cur_pointer);
}
}
void Radiobutton::onChanged() {
RadiobuttonGroup *group = reinterpret_cast<RadiobuttonGroup*>(_group);
if (checked()) {
int32 uncheck = group->val();
if (uncheck != _value) {
group->setVal(_value);
for (RadiobuttonGroup::const_iterator i = group->cbegin(), e = group->cend(); i != e; ++i) {
if (i.key()->val() == uncheck) {
i.key()->setChecked(false);
}
}
}
} else if (group->val() == _value) {
setChecked(true);
}
}
Radiobutton::~Radiobutton() {
reinterpret_cast<RadiobuttonGroup*>(_group)->remove(this);
}
} // namespace Ui