kylin-nm/plugins/component/SwitchButton/switchbutton.cpp

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/* -*- Mode: C; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*-
*
* Copyright (C) 2019 Tianjin KYLIN Information Technology Co., Ltd.
*
* This program 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 2 of the License, or
* (at your option) any later version.
*
* This program 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#include "switchbutton.h"
#include <QDebug>
#define THEME_QT_SCHEMA "org.ukui.style"
#define THEME_GTK_SCHEMA "org.mate.interface"
#define TIMER_INTERVAL 5 //每隔5ms动画移动一次
#define MOVING_STEPS 40 //动画总共移动40次
SwitchButton::SwitchButton(QWidget *parent, bool useDisableStyle) :
QWidget(parent)
{
// this->resize(QSize(52, 24));
this->setFixedSize(QSize(50, 24));
checked = false;
hover = false;
disabled = false;
isMoving = false;
isAnimation = true;
m_useDisableStyle = useDisableStyle;
space = 4;
rectRadius = height()/2;
mStep = width()/MOVING_STEPS;//也就是40次动画就可以走完每次时间间隔是固定的5ms
mStartX = 0;
mEndX= 0;
mTimer = new QTimer(this);
mTimer->setInterval(TIMER_INTERVAL);//动画更新时间
connect(mTimer, SIGNAL(timeout()), this, SLOT(updatevalue()));
if(QGSettings::isSchemaInstalled(THEME_GTK_SCHEMA) && QGSettings::isSchemaInstalled(THEME_QT_SCHEMA)) {
QByteArray qtThemeID(THEME_QT_SCHEMA);
QByteArray gtkThemeID(THEME_GTK_SCHEMA);
m_gtkThemeSetting = new QGSettings(gtkThemeID,QByteArray(),this);
m_qtThemeSetting = new QGSettings(qtThemeID,QByteArray(),this);
QString style = m_qtThemeSetting->get("styleName").toString();
changeColor(style);
connect(m_qtThemeSetting,&QGSettings::changed, [this] (const QString &key) {
QString style = m_qtThemeSetting->get("styleName").toString();
if (key == "styleName") {
changeColor(style);
}
});
}
}
SwitchButton::~SwitchButton()
{
}
void SwitchButton::paintEvent(QPaintEvent *){
QPainter painter(this);
//启用反锯齿
painter.setRenderHint(QPainter::Antialiasing, true);
painter.setCompositionMode(QPainter::CompositionMode_Source);
drawBg(&painter);
if(!isAnimation)//动画如果禁用则圆形滑块isMoving始终为false
isMoving =false;
if(isMoving)
animation(&painter);
drawSlider(&painter);
painter.end();
}
void SwitchButton::changeColor(const QString &themes) {
if (hover) {
return ;//在鼠标下,禁止切换颜色鼠标离开时切换颜色
}
if (themes == "ukui-dark" || themes == "ukui-black") {
bgColorOff = QColor(OFF_BG_DARK_COLOR);
bgColorOn = QColor(ON_BG_DARK_COLOR);
rectColorEnabled = QColor(ENABLE_RECT_DARK_COLOR);
rectColorDisabled = QColor(DISABLE_RECT_DARK_COLOR);
sliderColorDisabled = QColor(DISABLE_RECT_DARK_COLOR);
sliderColorEnabled = QColor(ENABLE_RECT_DARK_COLOR);
bgHoverOnColor = QColor(ON_HOVER_BG_DARK_COLOR);
bgHoverOffColor = QColor(OFF_HOVER_BG_DARK_COLOR);
bgColorDisabled = QColor(DISABLE_DARK_COLOR);
} else {
bgColorOff = QColor(OFF_BG_LIGHT_COLOR);
bgColorOn = QColor(ON_BG_LIGHT_COLOR);
rectColorEnabled = QColor(ENABLE_RECT_LIGHT_COLOR);
rectColorDisabled = QColor(DISABLE_RECT_LIGHT_COLOR);
sliderColorDisabled = QColor(DISABLE_RECT_LIGHT_COLOR);
sliderColorEnabled = QColor(ENABLE_RECT_LIGHT_COLOR);
bgHoverOnColor = QColor(ON_HOVER_BG_LIGHT_COLOR);
bgHoverOffColor = QColor(OFF_HOVER_BG_LIGHT_COLOR);
bgColorDisabled = QColor(DISABLE_LIGHT_COLOR);
}
}
//动画绘制
void SwitchButton::animation(QPainter *painter){
painter->save();
int h = height();
int w = width();
painter->setPen(Qt::NoPen);
//颜色设置
if(checked){
//开关在左侧时
painter->setBrush(bgColorOn);
rect.setRect(0,0,h+mStartX,h);
}else{
painter->setBrush(bgColorOff);
rect.setRect(mStartX,0,w-mStartX,h);
}
painter->drawRoundedRect(rect,rectRadius,rectRadius);
painter->restore();
}
//绘制背景
void SwitchButton::drawBg(QPainter *painter){
int w = width();
int h = height();
painter->save();
painter->setPen(Qt::NoPen);
if (disabled && m_useDisableStyle) {
painter->setPen(Qt::NoPen);
painter->setBrush(bgColorDisabled);
} else {
if(checked){
if(isMoving){
painter->setBrush(bgColorOff);
rect.setRect(mStartX,0,w-mStartX,h);
}else {
painter->setBrush(bgColorOn);
rect.setRect(0, 0, w, h);
}
}else{
if(isMoving){
painter->setBrush(bgColorOn);
rect.setRect(0,0,mStartX+h,h);
}
else {
painter->setBrush(bgColorOff);
rect.setRect(0, 0, w, h);
}
}
}
//半径为高度的一半
painter->drawRoundedRect(rect,rectRadius,rectRadius);
painter->restore();
}
//绘制滑块,也就是圆形按钮
void SwitchButton::drawSlider(QPainter *painter){
painter->save();
painter->setPen(Qt::NoPen);
if (!disabled || !m_useDisableStyle){
painter->setBrush(sliderColorEnabled);
}
else
painter->setBrush(sliderColorDisabled);
if (disabled) {
if (!checked){
QRect smallRect(8, height() / 2 - 2, 10 , 4);
painter->drawRoundedRect(smallRect,3,3);
}else{
QRect smallRect(width() - 8 * 2, height() / 2 - 2, 10 , 4);
painter->drawRoundedRect(smallRect,3,3);
}
}
QRect rect(0, 0, width(), height());
int sliderWidth = rect.height() - space * 2;
QRect sliderRect(mStartX + space, space, sliderWidth, sliderWidth);
painter->drawEllipse(sliderRect);
painter->restore();
}
void SwitchButton::mousePressEvent(QMouseEvent *){
qDebug()<<isMoving<<checked<<disabled;
if (isMoving) {
return ;
}
if(disabled){
mEndX = 0;
Q_EMIT disabledClick();
return ;
}else{
checked = !checked;
Q_EMIT checkedChanged(checked);
mStep = width() / MOVING_STEPS;
if (checked){
//circle out
// endX = width() - height() + space;
//circle in
mEndX = width() - height();
}
else {
mEndX = 0;
}
mTimer->start();
isMoving = true;
}
}
void SwitchButton::resizeEvent(QResizeEvent *){
//每次开始的x坐标都是跳过圆角从直线的地方开始计算
mStep = width() / MOVING_STEPS;
if (checked){
//circle out
// startX = width() - height() + space;
//circle in
mStartX = width() - height();
}
else
mStartX = 0;
rectRadius = height()/2;
update();
}
void SwitchButton::enterEvent(QEvent *event) {
bgColorOn = bgHoverOnColor;
bgColorOff = bgHoverOffColor;
hover = true;
update();
return QWidget::enterEvent(event);
}
void SwitchButton::leaveEvent(QEvent *event) {
hover = false;
QString style = m_qtThemeSetting->get("styleName").toString();
changeColor(style);
update();
return QWidget::leaveEvent(event);
}
//根据事件向左还是向右移动
void SwitchButton::updatevalue(){
if (checked)
if (mStartX < mEndX-mStep){
mStartX = mStartX + mStep;
}
else{
mStartX = mEndX;
mTimer->stop();
isMoving = false;
}
else{
if (mStartX > mEndX+mStep){
mStartX = mStartX - mStep;
}
else{
mStartX = mEndX;
mTimer->stop();
isMoving = false;
}
}
update();
}
void SwitchButton::setChecked(bool checked){
if (this->checked != checked){
this->checked = checked;
Q_EMIT checkedChanged(checked);
update();
}
mStep = width() / MOVING_STEPS;
if (checked){
//circle out
// endX = width() - height() + space;
//circle in
mEndX = width() - height();
}
else{
mEndX = 0;
}
mTimer->start();
isMoving = true;
}
bool SwitchButton::isChecked(){
return this->checked;
}
void SwitchButton::setDisabledFlag(bool value)
{
disabled = value;
update();
}
bool SwitchButton::getDisabledFlag()
{
return disabled;
}
void SwitchButton::setAnimation(bool on){
isAnimation = on;
}