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ToolBar Callback weirdness [message #35273]

Sat, 28 January 2012 00:48

Alboni
Messages: 216
Registered: January 2012
Location: Kajaani, Finland

Experienced Member

I created the next example to show off a problem I'm having with my app: (project added in zipfile)

For some reason the variable 'tool' is always 1 in the function ToolBarContent (callback for filling the toolbar) while it has the correct values everywhere else.
Is there some multithreading issue going on? I tried making 'tool' volatile but that didn't help. Changing to multithreading library didn't change it either.

(I use Visual C++ 2010 Express)

------------example--------------
#include <CtrlLib/CtrlLib.h>

using namespace Upp;

#define IMAGEFILE <bartest/bartest.iml>
#define IMAGECLASS bartest
#include <Draw/iml.h>

struct BarTest: TopWindow {
ToolBar toolbar;
int tool;

typedef BarTest CLASSNAME;

BarTest()
{
tool=1;
AddFrame(toolbar.Left());
toolbar.Set(THISBACK(ToolBarContent));
}

virtual void Paint(Draw& w)
{
char s[80];
w.DrawRect(GetSize(), Gray());
sprintf(s,"tool=%d",tool); // yeah I know
w.DrawText(200,220,s);
}

void MoveClicked()
{
tool=1;
Refresh();
}

void RotateClicked()
{
tool=2;
Refresh();
}

void ToolBarContent(Bar& bar)
{
bar.Add("Move", bartest::move(), THISBACK(MoveClicked)).Check(tool==1);
bar.Add("Rotate", bartest::rotate(), THISBACK(RotateClicked)).Check(tool==2);
}
};

GUI_APP_MAIN
{
BarTest().Run();
}

Attachment: bartest.zip
(Size: 2.91KB, Downloaded 369 times)

[Updated on: Sat, 28 January 2012 00:53]

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