由于激活原因，无法使QSystemTrayIcon正常工作 [英] Cannot get QSystemTrayIcon to work correctly with activation reason
问题描述
我正在使用Ubuntu 12.04，尽管我可以使用可用菜单创建任务栏图标，但无法控制其操作:
I am using Ubuntu 12.04 and, while I can create a tray icon with a usable menu, I cannot control its actions:
trayIcon = new QSystemTrayIcon(this);
trayIcon->setIcon(QIcon(":/icons/Pictures/icon.png"));
trayIcon->setToolTip(QString("Hello there..."));
connect(trayIcon,SIGNAL(activated(QSystemTrayIcon::ActivationReason)),this,SLOT(clickSysTrayIcon(QSystemTrayIcon::ActivationReason)));
connect(this,SIGNAL(minimized()),this,SLOT(hide()),Qt::QueuedConnection);
QMenu *changer_menu = new QMenu;
Show_action = new QAction(tr("S&how"),this);
Show_action->setIconVisibleInMenu(true);
connect(Show_action, SIGNAL(triggered()), this, SLOT(showClicked()));
changer_menu->addAction(Show_action);
changer_menu->addSeparator();
Quit_action = new QAction(tr("&Quit"), this);
Quit_action->setIconVisibleInMenu(true);;
connect(Quit_action, SIGNAL(triggered()), this, SLOT(close_minimize()));
changer_menu->addAction(Quit_action);
trayIcon->setContextMenu(changer_menu);
trayIcon->show();
clickSysTrayIcon(QSystemTrayIcon :: ActivationReason)如下:
The clickSysTrayIcon(QSystemTrayIcon::ActivationReason) is the following:
void MainWindow::clickSysTrayIcon(QSystemTrayIcon::ActivationReason reason)
{
//reason is a variable that holds the type of activation or click done on the icon tray
qDebug() << "I'm in!";
}
，并且在头文件中定义为:
and, defined at the header file as:
private Q_SLOTS:
void clickSysTrayIcon(QSystemTrayIcon::ActivationReason reason);
但是，我无法获得我进入！"要显示的消息.我试图使其与左/右键，中键和鼠标滚轮一起使用，但我从未看到此消息输出.
However, I cannot get the "I'm in!" message to be shown. I've tried to make it work with left/right clicks, with middle click and with mouse wheel, but I never see this message being outputed.
怎么了?
特定系统Ubuntu 12.04似乎有问题，因为它不再使用任务栏图标，而仅使用指示器.因此，有一个程序使用托盘图标并将其转换为指示器.但是，指标的功能消失了.我知道这应该归咎于系统，因为相同的程序和相同的代码在LXDE桌面的Lubuntu 12.04下可以完美地工作.
It seems that something's wrong with the specific system, Ubuntu 12.04, because it doesn't use tray icons any more and only indicators. So, there's a program which uses the tray icons and they convert them into indicators. But, then the features of indicators are gone. I know that it's the system to blame, because the same program, under the very same code, works perfectly under Lubuntu 12.04 with the LXDE desktop.
我为此责怪Ubuntu. sni-qt软件包不能很好地将图标从托盘图标迁移到指示器，前提是指示器可以在单击，滚轮等交互作用.这真是太遗憾了！ 这个问题有解决方案吗?
I blame Ubuntu for this. The sni-qt package doesn't do a very good migration from tray icons to indicators, providing that indicators can interact on click, on roller etc. It's a shame! Any solutions to this problem?
我的赏金结束了，所以如果有人可以解决这个问题，我将很感激！
My bounty ends, so if there's someone who can address the problem I would be thankful!
推荐答案
将问题提交给对项目影响最大的人.
Bring up the issue to the people that have the most influence on the projects.
https://help.ubuntu.com/community/ReportingBugs#How_to_report_bugs
我将在绘制指示器的指示器区域的顶部制作一个浮动的无框qwidget，然后在其上添加适当的mouseEvent函数.
I would make a floating frameless qwidget on top of the indicator area where your indicator gets painted, and then add the appropriate mouseEvent functions on to it.
这是这种解决方法的起点.我不知道这是怎么做到的，但是在Windows中效果很好.我知道有一些针对Windows的UI调整和工具，它们使用了这种样式的分层元素，例如DisplayFusion和TeamViewer.我尚未在Ubuntu中对其进行测试，但是它应该以相同的方式工作.
Here is starting point for this style of work-around. I don't know how kosher this is, but it works pretty well in Windows. I know there are some UI tweaks and tools for Windows that use this style of layered elements, like DisplayFusion and TeamViewer. I haven't tested it in Ubuntu yet, but it should work the same way.
#include <QtGui/QWidget>
#include <QMenu>
#include <QSystemTrayIcon>
#include <QMouseEvent>
#include <QPixmap>
#include <QAction>
#include <QDebug>
#include <QPaintEvent>
#include <QPainter>
#include <QApplication>
#include <QTimerEvent>
class Widget : public QWidget
{
Q_OBJECT
public:
Widget(QWidget *parent = 0)
: QWidget(parent)
{
// setup this widget to be borderless, transparent around the image
// and always on top
// and not to have a presence in the "visible window list"
this->setWindowFlags( Qt::WindowStaysOnTopHint |
Qt::FramelessWindowHint | Qt::Tool);
this->setAttribute(Qt::WA_TranslucentBackground);
// necessary if you want to track when you enter and leave the widget's rect with the mouse
this->setMouseTracking(true);
m_trayIcon = new QSystemTrayIcon(this);
m_trayIcon->setIcon(QIcon("icon1.ico"));
m_trayIcon->setToolTip(QString("Hello there..."));
m_changer_menu = new QMenu;
m_show_action = new QAction(tr("S&how"),this);
m_show_action->setIconVisibleInMenu(true);
connect(m_show_action, SIGNAL(triggered()), this, SLOT(showClicked()));
m_changer_menu->addAction(m_show_action);
m_changer_menu->addSeparator();
m_quit_action = new QAction(tr("&Quit"), this);
m_quit_action->setIconVisibleInMenu(true);;
connect(m_quit_action, SIGNAL(triggered()), this, SLOT(close_minimize()));
m_changer_menu->addAction(m_quit_action);
m_trayIcon->setContextMenu(m_changer_menu);
m_trayIcon->show();
QPixmap p("icon2.ico");
m_pix = p.scaled(QSize(m_trayIcon->geometry().width(),
m_trayIcon->geometry().height()),
Qt::IgnoreAspectRatio,
Qt::SmoothTransformation);
this->move(m_trayIcon->geometry().x() ,m_trayIcon->geometry().y());
this->resize(m_trayIcon->geometry().width(), m_trayIcon->geometry().height());
// qDebug() << m_trayIcon->geometry();
// qDebug() << this->geometry();
// This assumes that the notification is stationary. If you want it to move
// with the tray icon underneath, you will need to subclass QSystemTrayIcon
// and track its move and resize and probably also its show and hide events
// raise itself 15x a second
this->startTimer(1000/15);
}
~Widget(){ }
public slots:
void mouseDoubleClickEvent(QMouseEvent *)
{
qDebug() << Q_FUNC_INFO;
}
void mouseReleaseEvent(QMouseEvent * me)
{
qDebug() << Q_FUNC_INFO;
switch(me->button())
{
case Qt::LeftButton:
qDebug() << "Left Click";
break;
case Qt::RightButton:
qDebug() << "Right Click";
m_changer_menu->popup(this->geometry().topLeft() + me->pos());
break;
default:
qDebug() << "other click";
break;
}
}
void showClicked()
{
qDebug() << Q_FUNC_INFO;
}
void close_minimize()
{
qDebug() << Q_FUNC_INFO;
qApp->exit();
}
void paintEvent(QPaintEvent *)
{
QPainter aPainter(this);
aPainter.drawPixmap(rect(), m_pix);
}
void timerEvent(QTimerEvent *)
{
if(!m_changer_menu->isVisible())
this->raise();
}
private:
QPixmap m_pix;
QSystemTrayIcon * m_trayIcon;
QMenu * m_changer_menu;
QAction * m_quit_action;
QAction * m_show_action;
};
这是主要功能...
#include <QtGui/QApplication>
#include "widget.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
Widget w;
w.show();
return a.exec();
}
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