Codejock Developer Community : Property Grid. Getting direct access to controls

Property Grid. Getting direct access to controls : Thanks you so much guys. The new...

Mon, 05 Mar 2007 11:37:58 +0000

Author: Tomas
Subject: 4650
Posted: 05 March 2007 at 11:37am

Thanks you so much guys. The new property system rocks!!!

Property Grid. Getting direct access to controls : Tomas wrote:DrawInplaceButtons...

Tue, 27 Feb 2007 15:23:14 +0000

Author: JohnCrenshaw
Subject: 4650
Posted: 27 February 2007 at 3:23pm

Tomas wrote:

DrawInplaceButtons is a protected member of CXTPPropertyGridPaintManager so I don't have access to it. Do you have an example of this?

When I have a problem like this, where a member is protected that ought not be, I cheat. Derived classes can access protected members so I create a derived class with a static "access" function that takes a pointer to the other class and the parameters. For example:

class CSomeHelper : publid CClassWithStupidProtectedMember

{

public:

static int DoProtectedFunction(CClassWithStupidProtectedMember* p, UINT param)

{

return ((CSomeHelper*)p)->ProtectedFunction(param);

}

};

Then, in places where I really am sure that I should call the protected function, and have the right to, I can do so via CSomeHelper::DoProtectedFunction(p, param);

This is technically bad, but it is a lot more clean than changing the protected status of things or adding a friend. If you change the CodeJock code, then when the next update comes out, your program breaks. If you use my nasty hack, your code (probably) works.

The way I see it, this hack is far from clean code, but it is much cleaner and maintainable than any alternative.

Property Grid. Getting direct access to controls : DrawInplaceButtons is a protected...

Tue, 27 Feb 2007 14:56:25 +0000

Author: Tomas
Subject: 4650
Posted: 27 February 2007 at 2:56pm

DrawInplaceButtons is a protected member of CXTPPropertyGridPaintManager so I dont have access to it. Do you have an example of this?

Property Grid. Getting direct access to controls : Hello, Yes, buttons now drawn...

Sun, 25 Feb 2007 00:28:43 +0000

Author: Oleg
Subject: 4650
Posted: 25 February 2007 at 12:28am

Hello, Yes, buttons now drawn in Drawitem method. Add this call:

if (bSelected || m_pGrid->GetShowInplaceButtonsAlways()) pPaintManager->DrawInplaceButtons(&dc, pItem, rcValue);

Property Grid. Getting direct access to controls : In 10.4.2 ones you are drawing...

Fri, 23 Feb 2007 12:09:20 +0000

Author: Tomas
Subject: 4650
Posted: 23 February 2007 at 12:09pm

In 10.4.2 ones you are drawing your own grid using XTP_PGS_OWNERDRAW the inplace buttons don't show any more.

Property Grid. Getting direct access to controls : That is a cool first step. What...

Thu, 15 Feb 2007 18:31:08 +0000

Author: Tomas
Subject: 4650
Posted: 15 February 2007 at 6:31pm

That is a cool first step. What I really need to display are ALL the buttons not just the in-place buttons. That means that things like the sliders (User controls) and such should display as well. This is very important for us. As the user can be tweaking their properties and they don�t want to be selecting them first. Do you think it will be a hard feature to add for you guys?

Tomas

Property Grid. Getting direct access to controls : btw.. In 10.4 added property to...

Thu, 28 Dec 2006 01:25:50 +0000

Author: Oleg
Subject: 4650
Posted: 28 December 2006 at 1:25am

btw.. In 10.4 added property to show all inplace buttons.

Property Grid. Getting direct access to controls : oleg wrote:Hi, It is not...

Thu, 19 Oct 2006 11:17:28 +0000

Author: JohnCrenshaw
Subject: 4650
Posted: 19 October 2006 at 11:17am

oleg wrote:

Hi,

It is not possible :(

Are you sure? C'mon, you don't strike me as a defeatist. Not only is there a way to do this, it is painfully simple.

There is a function CXTPPropertyGridItem::SetFocusToInplaceControl() that is designed for setting this editable state.

Inside CXTPPropertyGrid::OnNavigate() we find this snippet, suggesting that the item must be selected prior to focusing the control but I havn't checked this for sure.

    pItem->OnSelect();
    pItem->SetFocusToInplaceControl();
    return;

Finally, the CXTPPropertyGrid class has the following function declaration:

   virtual void OnSelectionChanged(CXTPPropertyGridItem* pItem);

To get what you want, declare a new class based on the grid, then override the selection changed function. Call SetFocusToInplaceControl() for the control recieving the focus in the override. I make this call AFTER calling the base OnSelectionChanged() since it is for the user's convenience only. See the following snippet:

class COneClickPropertyGrid : public CXTPPropertyGrid
{
// Best Practice: Uncomment this and call IMPLEMENT_DYNAMIC() in the CPP file
//   DECLARE_DYNAMIC(COneClickPropertyGrid)
public:
   COneClickPropertyGrid() : CXTPPropertyGrid() {}
   // Best Practice: this shouldn't be inline
   virtual void OnSelectionChanged(CXTPPropertyGridItem* pItem)
   {
      CXTPPropertyGrid::OnSelectionChanged(pItem);
      // pItem is NULL sometimes
      if (pItem)
      {
         // set the item focus with a single click
         pItem->SetFocusToInplaceControl();
      }
   }
};

This is probably incomplete, for example, you may want to do something similar when the control is activated. Also, the edit control is fully highlighted at this point. This may or may not be the behavior you want but can be fixed.

This is the code responsible for highlighting everything:

void CXTPPropertyGridItem::SetFocusToInplaceControl()
{
 CXTPPropertyGridInplaceEdit& wndEdit = GetInplaceEdit();
 if (wndEdit.GetSafeHwnd() && wndEdit.GetItem() == this)
 {
  wndEdit.SetFocus();
  wndEdit.SetSel(0, -1); // This highlights all the text
 }
}

Since the above is a virtual function, you can change the behavior on a case by case basis.

Hope this helps!

Property Grid. Getting direct access to controls : I place my vote for this too!...

Sat, 05 Aug 2006 07:08:33 +0000

Author: Tomasz
Subject: 4650
Posted: 05 August 2006 at 7:08am

I place my vote for this too!

2+ clicks or more for changing property value is way too much for user-friendly application. My customers are complaining about having to click twice.

So please, pretty please with sugar on top, give us an option for one-click property change.

Property Grid. Getting direct access to controls : oleg wrote::) Added to wish...

Wed, 26 Jul 2006 09:36:42 +0000

Author: Tomas
Subject: 4650
Posted: 26 July 2006 at 9:36am

oleg wrote:

:) Added to wish list for 10.4.

Ho man 10.4 and in a wish list? That doesn't sound very promissing...

Tomas