CXTPControlComboBox width

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   Hi,

We are using CXTPControlComboBox object and setting up a standard width based on the string size that we are adding.
But on multi byte langauges ( japanese/chinese) our math of setting width doesnot hold up....a few chars are trucated in the display.

Here is how our display looks like...

Is there an auto width property on the CXTPControlComboBox? or should we be getting the font width and number of chars do the math and come up with the width??

Regards,
Bala

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Bala Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 31 January 2008 Status: Offline Points: 12	Post Options Post Reply Quote Bala Report Post Thanks(0) Quote Reply Topic: CXTPControlComboBox width Posted: 09 July 2008 at 11:09am
	Hi, We are using CXTPControlComboBox object and setting up a standard width based on the string size that we are adding. But on multi byte langauges ( japanese/chinese) our math of setting width doesnot hold up....a few chars are trucated in the display. Here is how our display looks like... Is there an auto width property on the CXTPControlComboBox? or should we be getting the font width and number of chars do the math and come up with the width?? Regards, Bala

jimmy Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 11 November 2003 Location: Austria Status: Offline Points: 516	Post Options Post Reply Quote jimmy Report Post Thanks(0) Quote Reply Posted: 09 July 2008 at 11:11am
	Hi, int CExResizeDialog::OnCreateControl(LPCREATECONTROLSTRUCT lpCreateControl) { if (lpCreateControl->bToolBar) { CXTPToolBar* pToolBar = DYNAMIC_DOWNCAST(CXTPToolBar, lpCreateControl->pCommandBar); if (!pToolBar) return FALSE; if (lpCreateControl->nID == ID_GUI_ONLINECURRENT && pToolBar->GetBarID() == IDR_GUI_ONLINESETTINGS) { CXTPControlComboBox* pComboState = (CXTPControlComboBox*)CXTPControlComboBox::CreateObject(); pComboState->SetCaption(_T("Online")); pComboState->SetWidth(180); pComboState->SetDropDownWidth(220); pComboState->SetDropDownItemCount(30); lpCreateControl->pControl = pComboState; return TRUE; } } return FALSE; } Jimmy

Bala Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 31 January 2008 Status: Offline Points: 12	Post Options Post Reply Quote Bala Report Post Thanks(0) Quote Reply Posted: 09 July 2008 at 12:35pm
	Thanks for your response.looks like you have hard coded value of 180. we are also calling SetWidth But I would like to know what value to set.. for ex:- we have a string called "Samrt priority" in english ...and it may be different in chinese.....so how do we come up with the width. One way is to get the string length and multiply by average font width. I am trying to see - if codejock has a special flag called "autowidth" on the combo box. ---ie'; combo box width adjusts based on the string added and font. - instead of users having to specify it... Regards, Bala

Smucker Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 02 February 2008 Status: Offline Points: 156	Post Options Post Reply Quote Smucker Report Post Thanks(0) Quote Reply Posted: 09 July 2008 at 2:16pm
	Here's the basic code I use: int cwidth = 0; pcombo->ResetContent(); CDC pdc = pcombo->GetEditCtrl()->GetDC(); for (each CString strval you add) { pcombo->AddString(strval); int w = pdc->GetTextExtent(strval).cx; if (w > cwidth) cwidth = w; } pcombo->GetEditCtrl()->ReleaseDC(pdc); pcombo->SetDropDownWidth(max(pcombo->GetWidth(), cwidth)); // * ** - you may want to constrain cwidth to a reasonable range.
	Product: Xtreme Toolkit Pro version 13.2 (Unicode, static build) Platform: Windows 200x/XP/Vista/Win7 (32/64 bit) Language: Visual C++ 9.0 (Studio 2008)

Bala Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 31 January 2008 Status: Offline Points: 12	Post Options Post Reply Quote Bala Report Post Thanks(0) Quote Reply Posted: 09 July 2008 at 3:01pm
	Thanks Smucker! I plugged in the logic and works great in german,french,chinese,english...etc I had to substitute GetEditCtrl with GetListBoxCtrl - since our ctrl is of type list box May be for next release - codejock could support this property - 'autowidth' and do this math - instead of every customer setting the width. Regards, Bala

Smucker Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 02 February 2008 Status: Offline Points: 156	Post Options Post Reply Quote Smucker Report Post Thanks(0) Quote Reply Posted: 09 July 2008 at 3:41pm
	Here's a more accurate version that handles the font size and borders/scroll width correctly. New code/changed code in green: int cwidth = 0; CFont cfont; CDC pdc = pcombo->GetListBoxCtrl()->GetDC(); CFont pfont = pcombo->GetListBoxCtrl()->GetFont(); if (!pfont) { cfont.CreateStockObject(DEFAULT_GUI_FONT); pfont = &cfont; } pdc->SaveDC(); pdc->SelectObject(pfont); pcombo->ResetContent(); for (*each CString strval you add) { pcombo->AddString(strval); int w = pdc->GetTextExtent(strval).cx; if (w > cwidth) cwidth = w; } CXTNonClientMetrics ncm; cwidth += ncm.iBorderWidth 2 + ncm.iScrollWidth; pdc->RestoreDC(-1); pcombo->GetListBoxCtrl()->ReleaseDC(pdc); pcombo->SetDropDownWidth(max(pcombo->GetRect().Width(), cwidth));
	Product: Xtreme Toolkit Pro version 13.2 (Unicode, static build) Platform: Windows 200x/XP/Vista/Win7 (32/64 bit) Language: Visual C++ 9.0 (Studio 2008)

jimmy Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 11 November 2003 Location: Austria Status: Offline Points: 516	Post Options Post Reply Quote jimmy Report Post Thanks(0) Quote Reply Posted: 10 July 2008 at 6:45am
	Will be nice to support Markup into ListBox Jimmy