Hi Aida,
To refresh the panel widget you can use two functions:
- Refresh() function
- Sometimes you need to send a resize event in order to update the
layout using this code:
wxSizeEvent resEvent(this->GetBestSize(), this->GetId());
resEvent.SetEventObject(this);
this->GetEventHandler()->ProcessEvent(resEvent);
Best,
Xavi
From: Aida Ninyerola [mailto:[email protected]]
Sent: viernes, 04 de noviembre de 2011 17:07
To: Xavier Planes
Cc: [email protected]
Subject: Re: [Gimias-developers] panel widget
Hi,
I've asked to wxWidgets forum and I'm now able to hide de controls I want.
The problem is that I'm not able to make disappear the grey parts when the
controls are hidden. In the forum they have told me that I need to use the
Layout() function but I doesn't work. The grey part disappears when I
refresh the panel widget of the processor.
How can I refresh the panel widget by code?
Thanks!
Aida
2011/10/25 Xavier Planes <[email protected]>
Hi Aida,
I havent used wxGridSizer too much. You could ask to
wxWidgets forum directly. However, you can try to call show/hide for the
grid_sizer like in the wxStaticBoxSizer sample code Ive sent you.
Best,
Xavi
From: Aida Ninyerola [mailto:[email protected]]
Sent: martes, 25 de octubre de 2011 12:33
To: Xavier Planes
Cc: [email protected]
Subject: Re: [Gimias-developers] panel widget
Thanks,
I'm going to try this as it seems easier
But I have one more question. What about if I'm using a GridSizer and inside
it an StaticBoxSizer? What should I do to show/hide these controls?
wxStaticBoxSizer* sizer_2 = new wxStaticBoxSizer(sizer_2_staticbox,
wxHORIZONTAL);
wxGridSizer* grid_sizer_2 = new wxGridSizer(2, 2, 0, 0);
grid_sizer_2->Add(label_1, 0, 0, 0);
grid_sizer_2->Add(label_3, 0, 0, 0);
grid_sizer_2->Add(label_2, 0, 0, 0);
grid_sizer_2->Add(label_4, 0, 0, 0);
sizer_2->Add(grid_sizer_2, 1, wxEXPAND, 0);
m_sizer2->Add(sizer_2, 1, wxEXPAND, 0);
Thank you very much
Aida
2011/10/25 Xavier Planes <[email protected]>
Hi Aida,
When using show/hide functions in wxWidgets, you need to call
show/hide on the sizers also to avoid grey empty space.
For example when using a wxStaticBoxSizer:
sizer_2_staticbox = new wxStaticBox(this, -1, wxT("Scalars"));
wxStaticBoxSizer* sizer_2 = new wxStaticBoxSizer(sizer_2_staticbox,
wxVERTICAL);
sizer_2->Add(m_ComboBoxSelection, 0, wxBOTTOM|wxEXPAND, 2);
You need to call these functions to hide them all:
m_ComboBoxSelection->Show( false );
m_ComboBoxSelection->GetContainingSizer()->Show( false );
sizer_2_staticbox->Show( false );
If you use a wxBoxSizer:
wxBoxSizer* sizer_3 = new wxBoxSizer(wxHORIZONTAL);
sizer_3->Add(m_chkSynchronize, 0, wxTOP, 2);
sizer_3->Add(m_btnExport, 0, 0, 0);
To hide all this controls you need to call:
m_chkSynchronize->Show( false );
m_btnExport->Show( false );
m_btnExport->GetContainingSizer()->Show( false );
This is the way we use to show/hide controls in wxWidgets. However,
if you want to create/destroy the controls, we need to take a look at the
source code to see where's the problem.
Best,
Xavi
From: Aida Ninyerola [mailto:[email protected]]
Sent: martes, 25 de octubre de 2011 0:17
To: Xavier Planes
Cc: [email protected]
Subject: Re: [Gimias-developers] panel widget
Hi,
I needed to change some of the structure I had in the panel widget and now I
am not able to achieve the result I previously had.
I didn't want to use the show/hide functions because using this it is going
to appear a grey empty place where is hidden what I want to show later.
Using the same code now all the new controls appear in a wrong place
("result.jpg") but I want what appears in "final.jpg".
I know is something difficult and maybe I'm not giving all the required
information, but I would like to know what I'm possibly doing wrong or
missing.
Thank you very much!
Aida
2011/10/14 Aida Ninyerola <[email protected]>
Hi,
I followed all your comments about the code and it worked without using
show/hide functions.
Thank you very much!
Aida
2011/10/11 Xavier Planes <[email protected]>
Hi Aida,
You need to be carefully when using a sizer and the functions
Detach() or Remove().Remove() will remove the child from the sizer and
destroys it if its a sizer or spacer.
http://docs.wxwidgets.org/2.8.10/wx_wxsizer.html#wxsizerremove
http://docs.wxwidgets.org/2.8.10/wx_wxsizer.html#wxsizerdetach
In your example, these lines will destroy the "SUR" labels but not
the "Standard SUR" labels (m_label5 and m_label6):
m_grid_sizer2->Detach(m_label3);
m_grid_sizer2->Detach(m_label4);
m_label3->Destroy();
m_label4->Destroy();
In the next piece of code m_grid_sizer2 will be detached from
m_sizer3 but it will not be destroyed because when calling Remove() the
sizer m_grid_sizer2 is not a child of m_sizer3:
m_sizer3->Detach(m_grid_sizer2);
m_sizer3->Remove(m_grid_sizer2);
Finally m_sizer3 will be detached:
m_sizer2->Detach(m_sizer3);
m_sizer2->Remove(m_sizer3);
At the end, the labels m_label5 and m_label6 are not destroyed and
will be floating in the parent window because the sizer where they were
inserted (m_grid_sizer2) has been detached from the main sizer (m_sizer2).
I recommend you to better use show/hide functions instead of
destroying the labels/sizers. This will simplify the code. Sometimes we add
a checkbox called "Advanced" to show/hide some advanced controls on the
window.
Best,
Xavi
From: Aida Ninyerola [mailto:[email protected]]
Sent: lunes, 10 de octubre de 2011 15:11
To: [email protected]
Subject: [Gimias-developers] panel widget
Hi,
During our process we create some controls in order to show the achieved
results.
wxStaticBox* m_sizer3_staticbox = new wxStaticBox(this, -1,
wxT("Results of Quantificaction:"));
m_sizer3 = new wxStaticBoxSizer(m_sizer3_staticbox, wxVERTICAL);
m_grid_sizer2 = new wxFlexGridSizer(2, 2, 0, 0);
m_label3 = new wxStaticText(this, wxID_ANY, wxT("SUR " + nameResult
+ ":\t"),wxDefaultPosition, wxDefaultSize,
wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL);
m_label3->SetFont(wxFont(8, wxDEFAULT, wxNORMAL, wxBOLD));
m_label4 = new wxStaticText(this, wxID_ANY,
wxT(wxString::Format("%.5f", numResult )),wxDefaultPosition, wxDefaultSize,
wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL);
m_label5 = new wxStaticText(this, wxID_ANY, wxT("Standard SUR
:\t"),wxDefaultPosition, wxDefaultSize,
wxALIGN_LEFT|wxALIGN_CENTER_VERTICAL);
m_label5->SetFont(wxFont(8, wxDEFAULT, wxNORMAL, wxBOLD));
m_label6 = new wxStaticText(this, wxID_ANY,
wxT(wxString::Format("%.5f", StandardResult )),wxDefaultPosition,
wxDefaultSize, wxALIGN_RIGHT|wxALIGN_CENTER_VERTICAL);
m_grid_sizer2->Add(m_label3, 0,wxEXPAND|wxALL,5);
m_grid_sizer2->Add(m_label4, 0,wxEXPAND|wxALL,5);
m_grid_sizer2->Add(m_label5, 0,wxEXPAND|wxALL,5);
m_grid_sizer2->Add(m_label6, 0,wxEXPAND|wxALL,5);
m_sizer3->Add(m_grid_sizer2, 0, wxALL|wxEXPAND, 5);
m_sizer2->Add(m_sizer3, 0, wxALL|wxEXPAND, 5);
// Resize this
// Cast a resize event
wxSizeEvent resEvent(this->GetBestSize(), this->GetId());
resEvent.SetEventObject(this);
this->GetEventHandler()->ProcessEvent(resEvent);
this->Refresh();
At some point we need to destroy this controls. We have this code in order
to achieve this
//Remove static texts
m_grid_sizer2->Detach(m_label3);
m_grid_sizer2->Detach(m_label4);
m_label3->Destroy();
m_label4->Destroy();
//Remove grid sizer
m_sizer3->Detach(m_grid_sizer2);
m_sizer3->Remove(m_grid_sizer2);
//Remove sizer 3
m_sizer3->Show(false);
m_sizer2->Detach(m_sizer3);
m_sizer2->Remove(m_sizer3);
GetSizer()->Layout();
GetSizer()->Fit(this);
// Resize this
// Cast a resize event
wxSizeEvent resEvent(this->GetBestSize(), this->GetId());
resEvent.SetEventObject(this);
this->GetEventHandler()->ProcessEvent(resEvent);
Although the creation works correctly, when we later try to destroy those
controls, they are not destroyed and other parts of the panel widget are
eliminated and all the panel widget of the processor stops working
correctly.
What is being done uncorrectly?
Thank you very much,
Aida
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