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Add a clock widget.

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This commit is contained in:
Andreas Kling 2018-10-12 12:18:59 +02:00
parent 6637dec958
commit 73895ce043
12 changed files with 143 additions and 15 deletions
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39
Widgets/Object.cpp
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@ -1,7 +1,12 @@
#include "Object.h"
#include "Event.h"
#include "EventLoop.h"
#include <AK/Assertions.h>
#ifdef USE_SDL
#include <SDL.h>
#endif
Object::Object(Object* parent)
: m_parent(parent)
{
@ -21,6 +26,8 @@ Object::~Object()
void Object::event(Event& event)
{
switch (event.type()) {
case Event::Timer:
return onTimer(static_cast<TimerEvent&>(event));
case Event::Invalid:
ASSERT_NOT_REACHED();
break;
@ -44,3 +51,35 @@ void Object::removeChild(Object& object)
}
m_children = std::move(newList);
}
void Object::onTimer(TimerEvent&)
{
}
#ifdef USE_SDL
static dword sdlTimerCallback(dword interval, void* param)
{
EventLoop::main().postEvent(static_cast<Object*>(param), make<TimerEvent>());
return interval;
}
#endif
void Object::startTimer(int ms)
{
if (m_timerID) {
printf("Object{%p} already has a timer!\n", this);
ASSERT_NOT_REACHED();
}
#if USE_SDL
m_timerID = SDL_AddTimer(ms, sdlTimerCallback, this);
#endif
}
void Object::stopTimer()
{
if (!m_timerID)
return;
SDL_RemoveTimer(m_timerID);
m_timerID = 0;
}