Official forum of the Irrlicht Engine
https://irrlicht.sourceforge.io/forum/
That's what's good about Irrlicht being open source.Just to answer this: I'd call this a bug because there is no way currently to reposition the tooltip, you have no control over where it appears so if its off screen, your stuffed and there's nothing you can do about it (besides change the irrlicht source). I'd also call this a bug because it's different to how tooltips usually work (at least on windows and I assume other OS's are the same). They always reposition themselves to stay on screen no matter where the element they belong to is.macron12388 wrote:Is this really a bug? I mean it's only doing what it's designed to do.
You tell it to render text/other gui items starting at a certain 2d point on the screen, and render from there, it won't recognize whether it's out of bounds or anything.
Ahh, I see. If the only way to fix it is changing the irrlicht source, I guess it is a bug.Mloren wrote:Just to answer this: I'd call this a bug because there is no way currently to reposition the tooltip, you have no control over where it appears so if its off screen, your stuffed and there's nothing you can do about it (besides change the irrlicht source). I'd also call this a bug because it's different to how tooltips usually work (at least on windows and I assume other OS's are the same). They always reposition themselves to stay on screen no matter where the element they belong to is.macron12388 wrote:Is this really a bug? I mean it's only doing what it's designed to do.
You tell it to render text/other gui items starting at a certain 2d point on the screen, and render from there, it won't recognize whether it's out of bounds or anything.
Hehe, I remember fixing that one also once in some situation :-) Guess it's one of those re-appearing bugs - I'll try to take care, thx.bitplane wrote:IIRC the one I fixed was to do with the tooltip appearing directly under or right next to the mouse position, so the hovered element would change when you next moved the mouse, which made the tooltips flicker on and off.
Any fix would have to watch out for that problem, the naive fix of just calling rect.constrainTo(screenRect) would probably reintroduce it.
Code: Select all
#include <irrlicht.h>
#include <iostream>
using namespace irr;
using namespace core;
using namespace scene;
using namespace video;
using namespace io;
using namespace gui;
#ifdef _IRR_WINDOWS_
#pragma comment(lib, "Irrlicht.lib")
#endif
struct SAppContext
{
IrrlichtDevice * device;
irr::gui::IGUIButton * buttonHide;
irr::gui::IGUIButton * buttonRemove;
};
class MyEventReceiver : public IEventReceiver
{
public:
MyEventReceiver(SAppContext & context) : Context(context) { }
virtual bool OnEvent(const SEvent& event)
{
if (event.EventType == EET_GUI_EVENT)
{
switch(event.GUIEvent.EventType)
{
case EGET_BUTTON_CLICKED:
if ( event.GUIEvent.Caller == Context.buttonHide )
{
Context.buttonHide->setVisible(false);
}
else if ( event.GUIEvent.Caller == Context.buttonRemove )
{
Context.buttonRemove->remove();
}
break;
default:
break;
}
}
return false;
}
private:
SAppContext & Context;
};
int main()
{
video::E_DRIVER_TYPE driverType = video::EDT_OPENGL;
IrrlichtDevice * device = createDevice(driverType, core::dimension2d<u32>(640, 480));
if (device == 0)
return 1; // could not create selected driver.
video::IVideoDriver* driver = device->getVideoDriver();
IGUIEnvironment* env = device->getGUIEnvironment();
SAppContext context;
context.device = device;
context.buttonHide = env->addButton( irr::core::rect<s32>(20,20, 100, 40), 0, -1, L"hide", L"tooltip_hide");
context.buttonRemove = env->addButton( irr::core::rect<s32>(20,50, 100, 70), 0, -1, L"remove", L"tooltip_remove");
context.buttonRemove = env->addButton( irr::core::rect<s32>(0,0, 100, 20), 0, -1, L"left-top", L"tooltip_lefttop");
context.buttonRemove = env->addButton( irr::core::rect<s32>(300,0, 400, 20), 0, -1, L"top", L"tooltip_lefttop");
context.buttonRemove = env->addButton( irr::core::rect<s32>(540,0, 640, 20), 0, -1, L"top-right", L"tooltip_lefttop");
context.buttonRemove = env->addButton( irr::core::rect<s32>(540,100, 640, 120), 0, -1, L"right", L"tooltip_lefttop");
context.buttonRemove = env->addButton( irr::core::rect<s32>(540,460, 640, 480), 0, -1, L"right-bottom", L"tooltip_lefttop");
context.buttonRemove = env->addButton( irr::core::rect<s32>(300,460, 400, 480), 0, -1, L"bottom", L"tooltip_lefttop");
context.buttonRemove = env->addButton( irr::core::rect<s32>(0,460, 100, 480), 0, -1, L"bottom left", L"tooltip_lefttop");
context.buttonRemove = env->addButton( irr::core::rect<s32>(0,200, 100, 220), 0, -1, L"left", L"tooltip_lefttop");
MyEventReceiver receiver(context);
device->setEventReceiver(&receiver);
while(device->run() && driver)
{
if (device->isWindowActive())
{
driver->beginScene(true, true, SColor(0,200,200,200));
env->drawAll();
driver->endScene();
}
}
device->drop();
return 0;
}
