tdesktop/Telegram/SourceFiles/info/profile/info_profile_button.cpp

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/*
This file is part of Telegram Desktop,
the official desktop application for the Telegram messaging service.
For license and copyright information please follow this link:
https://github.com/telegramdesktop/tdesktop/blob/master/LEGAL
*/
#include "info/profile/info_profile_button.h"
#include <rpl/never.h>
#include "ui/widgets/checkbox.h"
#include "styles/style_info.h"
namespace Info {
namespace Profile {
Button::Button(
QWidget *parent,
rpl::producer<QString> &&text)
: Button(parent, std::move(text), st::infoProfileButton) {
}
Button::Button(
QWidget *parent,
rpl::producer<QString> &&text,
const style::InfoProfileButton &st)
: RippleButton(parent, st.ripple)
, _st(st) {
std::move(
text
) | rpl::start_with_next([this](QString &&value) {
setText(std::move(value));
}, lifetime());
}
Button *Button::toggleOn(rpl::producer<bool> &&toggled) {
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Expects(_toggle == nullptr);
_toggle = std::make_unique<Ui::ToggleView>(
isOver() ? _st.toggleOver : _st.toggle,
false,
[this] { rtlupdate(toggleRect()); });
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addClickHandler([this] {
_toggle->setCheckedAnimated(!_toggle->checked());
});
std::move(
toggled
) | rpl::start_with_next([this](bool toggled) {
_toggle->setCheckedAnimated(toggled);
}, lifetime());
_toggle->finishAnimating();
return this;
}
rpl::producer<bool> Button::toggledValue() const {
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if (_toggle) {
return _toggle->checkedValue();
}
return rpl::never<bool>();
}
void Button::paintEvent(QPaintEvent *e) {
Painter p(this);
auto ms = getms();
auto paintOver = (isOver() || isDown());
p.fillRect(e->rect(), paintOver ? _st.textBgOver : _st.textBg);
paintRipple(p, 0, 0, ms);
auto outerw = width();
p.setFont(_st.font);
p.setPen(paintOver ? _st.textFgOver : _st.textFg);
p.drawTextLeft(
_st.padding.left(),
_st.padding.top(),
outerw,
_text,
_textWidth);
if (_toggle) {
auto rect = toggleRect();
_toggle->paint(p, rect.left(), rect.top(), outerw, ms);
}
}
QRect Button::toggleRect() const {
Expects(_toggle != nullptr);
auto size = _toggle->getSize();
auto left = width() - _st.toggleSkip - size.width();
auto top = (height() - size.height()) / 2;
return { QPoint(left, top), size };
}
int Button::resizeGetHeight(int newWidth) {
updateVisibleText(newWidth);
return _st.padding.top() + _st.height + _st.padding.bottom();
}
void Button::onStateChanged(
State was,
StateChangeSource source) {
RippleButton::onStateChanged(was, source);
if (_toggle) {
_toggle->setStyle(isOver() ? _st.toggleOver : _st.toggle);
}
}
void Button::setText(QString &&text) {
_original = std::move(text);
_originalWidth = _st.font->width(_original);
updateVisibleText(width());
}
void Button::updateVisibleText(int newWidth) {
auto availableWidth = newWidth
- _st.padding.left()
- _st.padding.right();
if (_toggle) {
availableWidth -= (width() - toggleRect().x());
}
accumulate_max(availableWidth, 0);
if (availableWidth < _originalWidth) {
_text = _st.font->elided(_original, availableWidth);
_textWidth = _st.font->width(_text);
} else {
_text = _original;
_textWidth = _originalWidth;
}
update();
}
} // namespace Profile
} // namespace Info