mirror of
https://github.com/Artikash/Textractor.git
synced 2024-12-24 01:14:12 +08:00
94 lines
3.0 KiB
C++
94 lines
3.0 KiB
C++
#pragma once
|
|
|
|
// wintimer.h
|
|
// 6/6/2012 jichi
|
|
//
|
|
// A light-weighted native windows timer as a replacement of QTimer from Qt.
|
|
// Implementation is based on Windows Messaging. A visible parent hwnd is required.
|
|
//
|
|
// This timer is critical where QTimer or event loop are not available, or need to
|
|
// warp to different event loop. Some usage cases follow:
|
|
// - Used by texthook as a replacement of QTimer in non-QThread
|
|
// - Used by qapplicationloader to implement pseudo event loop
|
|
// - Used by winhook to synchronize with window event loop across threads
|
|
|
|
#include "wintimer/wintimerbase.h"
|
|
#include <boost/bind.hpp>
|
|
|
|
/**
|
|
* @brief A light-weighted native windows timer as a replacement of QTimer.
|
|
*
|
|
* Needed when in a thread where event loop is not accessible.
|
|
* Implemented using extensive inlining over pimp, so that the entire class
|
|
* could be put on the stack without heap.
|
|
*
|
|
* Each timer requires an valid visible window's handle to synchronize with.
|
|
* Either specify the window handle with the parent window or a global window.
|
|
*/
|
|
class WinTimer : protected WinTimerBase
|
|
{
|
|
SK_EXTEND_CLASS(WinTimer, WinTimerBase)
|
|
SK_DISABLE_COPY(WinTimer)
|
|
|
|
// - Construction -
|
|
public:
|
|
//typedef std::function<void ()> function_type;
|
|
using Base::function_type; ///< std::function<void ()>
|
|
|
|
/// Default parent window of all timers.
|
|
static WId globalWindow() { return Base::globalWindow; }
|
|
static void setGlobalWindow(WId winId) { Base::globalWindow = winId; }
|
|
|
|
//static WId createHiddenWindow();
|
|
|
|
public:
|
|
/// Construct a timer with the parent window handle.
|
|
explicit WinTimer(WId parentWindow = 0) { setParentWindow(parentWindow); }
|
|
|
|
static void singleShot(int msecs, const function_type &f, WId parent = 0);
|
|
|
|
// - Properties -
|
|
public:
|
|
using Base::isActive;
|
|
using Base::isSingleShot;
|
|
|
|
void setSingleShot(bool t) { Base::singleShot = t; }
|
|
|
|
//bool isEmpty() const { return Base::function.empty(); }
|
|
|
|
WId parentWindow() const { return Base::parentWindow; }
|
|
void setParentWindow(WId winId) { Base::parentWindow = winId ? winId : Base::globalWindow; }
|
|
|
|
int interval() const { return Base::interval; }
|
|
void setInterval(int msecs) { Base::interval = msecs; }
|
|
|
|
/// Timeout callback when trigger.
|
|
void setFunction(const function_type &f) { Base::function = f; }
|
|
|
|
/// @overload Set callback to a class method
|
|
template <typename Class, typename Member>
|
|
void setMethod(Class *obj, Member mfunc)
|
|
{ setFunction(boost::bind(mfunc, obj)); }
|
|
|
|
/// @overload Set callback to a const class method
|
|
template <typename Class, typename Member>
|
|
void setMethod(const Class *obj, Member mfunc)
|
|
{ setFunction(boost::bind(mfunc, obj)); }
|
|
|
|
// - Actions -
|
|
public:
|
|
/// Start TimerProc
|
|
using Base::start;
|
|
|
|
/// Stop TimerProc
|
|
using Base::stop;
|
|
|
|
/// Reset interval and start TimerProc
|
|
void start(int interval) { setInterval(interval); start(); }
|
|
|
|
/// Invoke the callback. This function is the callback of the underlying TimerProc
|
|
using Base::trigger;
|
|
};
|
|
|
|
WINTIMER_END_NAMESPACE
|