tdesktop/Telegram/SourceFiles/ui/flatbutton.cpp

404 lines
11 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) 2014-2016 John Preston, https://desktop.telegram.org
*/
#include "stdafx.h"
#include "ui/flatbutton.h"
FlatButton::FlatButton(QWidget *parent, const QString &text, const style::flatButton &st) : Button(parent)
, _text(text)
, _st(st)
, a_bg(st.bgColor->c)
, a_text(st.color->c)
, _a_appearance(animation(this, &FlatButton::step_appearance))
, _opacity(1) {
if (_st.width < 0) {
_st.width = textWidth() - _st.width;
} else if (!_st.width) {
_st.width = textWidth() + _st.height - _st.font->height;
}
connect(this, SIGNAL(stateChanged(int, ButtonStateChangeSource)), this, SLOT(onStateChange(int, ButtonStateChangeSource)));
resize(_st.width, _st.height);
setCursor(_st.cursor);
}
void FlatButton::setOpacity(float64 o) {
_opacity = o;
update();
}
float64 FlatButton::opacity() const {
return _opacity;
}
void FlatButton::setText(const QString &text) {
_text = text;
update();
}
void FlatButton::setWidth(int32 w) {
_st.width = w;
if (_st.width < 0) {
_st.width = textWidth() - _st.width;
} else if (!_st.width) {
_st.width = textWidth() + _st.height - _st.font->height;
}
resize(_st.width, height());
}
int32 FlatButton::textWidth() const {
return _st.font->width(_text);
}
void FlatButton::step_appearance(float64 ms, bool timer) {
float64 dt = ms / _st.duration;
if (dt >= 1) {
_a_appearance.stop();
a_bg.finish();
a_text.finish();
} else {
a_bg.update(dt, anim::linear);
a_text.update(dt, anim::linear);
}
if (timer) update();
}
void FlatButton::onStateChange(int oldState, ButtonStateChangeSource source) {
style::color bgColorTo = (_state & StateOver) ? ((_state & StateDown) ? _st.downBgColor : _st.overBgColor) : _st.bgColor;
style::color colorTo = (_state & StateOver) ? ((_state & StateDown) ? _st.downColor : _st.overColor) : _st.color;
a_bg.start(bgColorTo->c);
a_text.start(colorTo->c);
if (source == ButtonByUser || source == ButtonByPress) {
_a_appearance.stop();
a_bg.finish();
a_text.finish();
update();
} else {
_a_appearance.start();
}
}
void FlatButton::paintEvent(QPaintEvent *e) {
QPainter p(this);
QRect r(0, height() - _st.height, width(), _st.height);
p.setOpacity(_opacity);
p.fillRect(r, a_bg.current());
p.setFont((_state & StateOver) ? _st.overFont : _st.font);
p.setRenderHint(QPainter::TextAntialiasing);
p.setPen(a_text.current());
int32 top = (_state & StateOver) ? ((_state & StateDown) ? _st.downTextTop : _st.overTextTop) : _st.textTop;
r.setTop(top);
p.drawText(r, _text, style::al_top);
}
LinkButton::LinkButton(QWidget *parent, const QString &text, const style::linkButton &st) : Button(parent), _text(text), _st(st) {
connect(this, SIGNAL(stateChanged(int, ButtonStateChangeSource)), this, SLOT(onStateChange(int, ButtonStateChangeSource)));
resize(_st.font->width(_text), _st.font->height);
setCursor(style::cur_pointer);
}
void LinkButton::paintEvent(QPaintEvent *e) {
QPainter p(this);
p.setFont(((_state & StateOver) ? _st.overFont : _st.font)->f);
p.setPen(((_state & StateDown) ? _st.downColor : ((_state & StateOver) ? _st.overColor : _st.color))->p);
p.drawText(0, ((_state & StateOver) ? _st.overFont : _st.font)->ascent, _text);
}
void LinkButton::setText(const QString &text) {
_text = text;
resize(_st.font->width(_text), _st.font->height);
update();
}
void LinkButton::onStateChange(int oldState, ButtonStateChangeSource source) {
update();
}
LinkButton::~LinkButton() {
}
IconedButton::IconedButton(QWidget *parent, const style::iconedButton &st, const QString &text) : Button(parent)
, _text(text)
, _st(st)
, _width(_st.width)
, a_opacity(_st.opacity)
, a_bg(_st.bgColor->c)
, _a_appearance(animation(this, &IconedButton::step_appearance))
, _opacity(1) {
if (_width < 0) {
_width = _st.font->width(text) - _width;
} else if (!_width) {
_width = _st.font->width(text) + _st.height - _st.font->height;
}
connect(this, SIGNAL(stateChanged(int, ButtonStateChangeSource)), this, SLOT(onStateChange(int, ButtonStateChangeSource)));
resize(_width, _st.height);
setCursor(_st.cursor);
}
void IconedButton::setOpacity(float64 opacity) {
_opacity = opacity;
update();
}
void IconedButton::setText(const QString &text) {
if (_text != text) {
_text = text;
if (_st.width < 0) {
_width = _st.font->width(text) - _st.width;
} else if (!_st.width) {
_width = _st.font->width(text) + _st.height - _st.font->height;
}
resize(_width, _st.height);
update();
}
}
QString IconedButton::getText() const {
return _text;
}
void IconedButton::step_appearance(float64 ms, bool timer) {
if (_st.duration <= 1) {
_a_appearance.stop();
a_opacity.finish();
a_bg.finish();
} else {
float64 dt = ms / _st.duration;
if (dt >= 1) {
_a_appearance.stop();
a_opacity.finish();
a_bg.finish();
} else {
a_opacity.update(dt, anim::linear);
a_bg.update(dt, anim::linear);
}
}
if (timer) update();
}
void IconedButton::onStateChange(int oldState, ButtonStateChangeSource source) {
a_opacity.start((_state & (StateOver | StateDown)) ? _st.overOpacity : _st.opacity);
a_bg.start(((_state & (StateOver | StateDown)) ? _st.overBgColor : _st.bgColor)->c);
if (source == ButtonByUser || source == ButtonByPress) {
_a_appearance.stop();
a_opacity.finish();
a_bg.finish();
update();
} else {
_a_appearance.start();
}
}
void IconedButton::paintEvent(QPaintEvent *e) {
Painter p(this);
p.setOpacity(_opacity);
p.fillRect(e->rect(), a_bg.current());
p.setOpacity(a_opacity.current() * _opacity);
if (!_text.isEmpty()) {
p.setFont(_st.font->f);
p.setRenderHint(QPainter::TextAntialiasing);
p.setPen(_st.color->p);
const QPoint &t((_state & StateDown) ? _st.downTextPos : _st.textPos);
p.drawText(t.x(), t.y() + _st.font->ascent, _text);
}
const style::sprite &i((_state & StateDown) ? _st.downIcon : _st.icon);
if (i.pxWidth()) {
QPoint t((_state & StateDown) ? _st.downIconPos : _st.iconPos);
if (t.x() < 0) {
t.setX((width() - i.pxWidth()) / 2);
}
if (t.y() < 0) {
t.setY((height() - i.pxHeight()) / 2);
}
p.drawSprite(t, i);
}
}
MaskedButton::MaskedButton(QWidget *parent, const style::iconedButton &st, const QString &text) : IconedButton(parent, st, text) {
}
void MaskedButton::paintEvent(QPaintEvent *e) {
Painter p(this);
p.setOpacity(_opacity);
p.setOpacity(a_opacity.current() * _opacity);
if (!_text.isEmpty()) {
p.setFont(_st.font->f);
p.setRenderHint(QPainter::TextAntialiasing);
p.setPen(a_bg.current());
const QPoint &t((_state & StateDown) ? _st.downTextPos : _st.textPos);
p.drawText(t.x(), t.y() + _st.font->ascent, _text);
}
const style::sprite &i((_state & StateDown) ? _st.downIcon : _st.icon);
if (i.pxWidth()) {
const QPoint &t((_state & StateDown) ? _st.downIconPos : _st.iconPos);
p.fillRect(QRect(t, QSize(i.pxWidth(), i.pxHeight())), a_bg.current());
p.drawSprite(t, i);
}
}
EmojiButton::EmojiButton(QWidget *parent, const style::iconedButton &st) : IconedButton(parent, st)
, _loading(false)
, _a_loading(animation(this, &EmojiButton::step_loading)) {
}
void EmojiButton::paintEvent(QPaintEvent *e) {
Painter p(this);
uint64 ms = getms();
float64 loading = a_loading.current(ms, _loading ? 1 : 0);
p.setOpacity(_opacity * (1 - loading));
p.fillRect(e->rect(), a_bg.current());
p.setOpacity(a_opacity.current() * _opacity * (1 - loading));
const style::sprite &i((_state & StateDown) ? _st.downIcon : _st.icon);
if (!i.isEmpty()) {
const QPoint &t((_state & StateDown) ? _st.downIconPos : _st.iconPos);
p.drawSprite(t, i);
}
p.setOpacity(a_opacity.current() * _opacity);
p.setPen(QPen(st::emojiCircleFg, st::emojiCircleLine));
p.setBrush(Qt::NoBrush);
p.setRenderHint(QPainter::HighQualityAntialiasing);
QRect inner(QPoint((width() - st::emojiCircle.width()) / 2, st::emojiCircleTop), st::emojiCircle);
if (loading > 0) {
int32 full = 5760;
int32 start = qRound(full * float64(ms % uint64(st::emojiCirclePeriod)) / st::emojiCirclePeriod), part = qRound(loading * full / st::emojiCirclePart);
p.drawArc(inner, start, full - part);
} else {
p.drawEllipse(inner);
}
p.setRenderHint(QPainter::HighQualityAntialiasing, false);
}
void EmojiButton::setLoading(bool loading) {
if (_loading != loading) {
_loading = loading;
auto from = loading ? 0. : 1., to = loading ? 1. : 0.;
START_ANIMATION(a_loading, func(this, &EmojiButton::updateCallback), from, to, st::emojiCircleDuration, anim::linear);
if (loading) {
_a_loading.start();
} else {
_a_loading.stop();
}
}
}
BoxButton::BoxButton(QWidget *parent, const QString &text, const style::BoxButton &st) : Button(parent)
, _text(text.toUpper())
, _fullText(text.toUpper())
, _textWidth(st.font->width(_text))
, _st(st)
, a_textBgOverOpacity(0)
, a_textFg(st.textFg->c)
, _a_over(animation(this, &BoxButton::step_over)) {
resizeToText();
connect(this, SIGNAL(stateChanged(int, ButtonStateChangeSource)), this, SLOT(onStateChange(int, ButtonStateChangeSource)));
setCursor(style::cur_pointer);
setAttribute(Qt::WA_OpaquePaintEvent);
}
void BoxButton::setText(const QString &text) {
_text = text;
_fullText = text;
_textWidth = _st.font->width(_text);
resizeToText();
}
void BoxButton::resizeToText() {
if (_st.width <= 0) {
resize(_textWidth - _st.width, _st.height);
} else {
if (_st.width < _textWidth + (_st.height - _st.font->height)) {
_text = _st.font->elided(_fullText, qMax(_st.width - (_st.height - _st.font->height), 1));
_textWidth = _st.font->width(_text);
}
resize(_st.width, _st.height);
}
}
void BoxButton::paintEvent(QPaintEvent *e) {
Painter p(this);
p.fillRect(rect(), _st.textBg->b);
float64 o = a_textBgOverOpacity.current();
if (o > 0) {
p.setOpacity(o);
App::roundRect(p, rect(), _st.textBgOver);
p.setOpacity(1);
p.setPen(a_textFg.current());
} else {
p.setPen(_st.textFg);
}
p.setFont(_st.font);
p.drawText((width() - _textWidth) / 2, _st.textTop + _st.font->ascent, _text);
}
void BoxButton::step_over(float64 ms, bool timer) {
float64 dt = ms / _st.duration;
if (dt >= 1) {
_a_over.stop();
a_textFg.finish();
a_textBgOverOpacity.finish();
} else {
a_textFg.update(dt, anim::linear);
a_textBgOverOpacity.update(dt, anim::linear);
}
if (timer) update();
}
void BoxButton::onStateChange(int oldState, ButtonStateChangeSource source) {
float64 textBgOverOpacity = (_state & StateOver) ? 1 : 0;
style::color textFg = (_state & StateOver) ? (_st.textFgOver) : _st.textFg;
a_textBgOverOpacity.start(textBgOverOpacity);
a_textFg.start(textFg->c);
if (source == ButtonByUser || source == ButtonByPress || true) {
_a_over.stop();
a_textBgOverOpacity.finish();
a_textFg.finish();
update();
} else {
_a_over.start();
}
}