PureBasic Forums - English

Posted: **Tue Feb 21, 2012 9:37 pm**

After countless hours of trying to find a Mac solution I finally
succeeded. I simply had declared the variable InitialSortOrder in
the structure DataBrowserListViewHeaderDesc wrongly as Long
Integer instead of Unsigned Word...

This is the final cross-platform code example (Windows, Linux and
MacOS X) to change the column justification in a ListIconGadget
during runtime.

Code: Select all

EnableExplicit

CompilerSelect #PB_Compiler_OS
  CompilerCase #PB_OS_Linux
    ImportC ""
      g_object_set_double(*Object, Property.P-ASCII, Value.D, Null) As "g_object_set"
    EndImport
  CompilerCase #PB_OS_MacOS
    #kControlUseJustMask = $0040
    #teCenter = 1
    #teFlushRight = -1
    #teFlushLeft = -2

    ImportC ""
      GetDataBrowserListViewHeaderDesc(DataBrowserRef, ColumnID, *HeaderDesc)
      GetDataBrowserTableViewColumnProperty(DataBrowserRef, Column, *ColumnID)
      HiliteControl(ControlRef, ControlPart)
      SetControlVisibility(ControlRef, IsVisible, DoDraw)
      SetDataBrowserListViewHeaderDesc(DataBrowserRef, ColumnID, *HeaderDesc)
    EndImport

    Structure RGBColor
      Red.U
      Green.U
      Blue.U
    EndStructure
    
    Structure ControlFontStyleRec
      Flags.W
      Font.W
      Size.W
      Style.W
      Mode.W
      Just.W
      ForeColor.RGBColor
      BackColor.RGBColor
    EndStructure

    Structure DataBrowserListViewHeaderDesc
      Version.L
      MinimumColumnWidth.U
      MaximumColumnWidth.U
      TitleOffset.W
      CFTitleString.L
      InitialSortOrder.U
      FontStyle.ControlFontStyleRec
      IconInfo.L
    EndStructure
CompilerEndSelect

Enumeration
  #PB_ListIcon_JustifyColumnLeft
  #PB_ListIcon_JustifyColumnCenter
  #PB_ListIcon_JustifyColumnRight
EndEnumeration

Procedure SetListIconColumnJustification(ListIconID, Column, Alignment)
  CompilerSelect #PB_Compiler_OS
    CompilerCase #PB_OS_Linux
      Protected AlignmentFactor.D
      Protected *CellRenderers
      Protected *Column
      Protected Count
      Protected i

      Select Alignment
        Case #PB_ListIcon_JustifyColumnLeft
          AlignmentFactor = 0.0
        Case #PB_ListIcon_JustifyColumnCenter
          AlignmentFactor = 0.5
        Case #PB_ListIcon_JustifyColumnRight
          AlignmentFactor = 1.0
      EndSelect

      *Column = gtk_tree_view_get_column_(GadgetID(ListIconID), Column)

      If *Column
        gtk_tree_view_column_set_alignment_(*Column, AlignmentFactor)
        *CellRenderers = gtk_tree_view_column_get_cell_renderers_(*Column)

        If *CellRenderers
          Count = g_list_length_(*CellRenderers)

          For i = 0 To Count - 1
            g_object_set_double(g_list_nth_data_(*CellRenderers, i), "xalign", AlignmentFactor, #Null)
          Next i         

          g_list_free_(*CellRenderers)
        EndIf
      EndIf
    CompilerCase #PB_OS_MacOS
      Protected ColumnID.L
      Protected HeaderDesc.DataBrowserListViewHeaderDesc

      If GetDataBrowserTableViewColumnProperty(GadgetID(0), Column, @ColumnID) = 0
        If GetDataBrowserListViewHeaderDesc(GadgetID(0), ColumnID, @HeaderDesc) = 0
          HeaderDesc\FontStyle\Flags = #kControlUseJustMask
          
          Select Alignment
            Case #PB_ListIcon_JustifyColumnLeft
              HeaderDesc\FontStyle\Just = #teFlushLeft
            Case #PB_ListIcon_JustifyColumnCenter
              HeaderDesc\FontStyle\Just = #teCenter
            Case #PB_ListIcon_JustifyColumnRight
              HeaderDesc\FontStyle\Just = #teFlushRight
          EndSelect
          
          SetDataBrowserListViewHeaderDesc(GadgetID(0), ColumnID, @HeaderDesc)
        EndIf
      EndIf
    CompilerCase #PB_OS_Windows
      Protected ListIconColumn.LV_COLUMN

      ListIconColumn\mask = #LVCF_FMT

      Select Alignment
        Case #PB_ListIcon_JustifyColumnLeft
          ListIconColumn\fmt = #LVCFMT_LEFT
        Case #PB_ListIcon_JustifyColumnCenter
          ListIconColumn\fmt = #LVCFMT_CENTER
        Case #PB_ListIcon_JustifyColumnRight
          ListIconColumn\fmt = #LVCFMT_RIGHT
      EndSelect

      SendMessage_(GadgetID(ListIconID), #LVM_SETCOLUMN, Column, @ListIconColumn)
  CompilerEndSelect
EndProcedure

OpenWindow(0, 200, 100, 445, 90, "Right justify 1st column")
ListIconGadget(0, 5, 5, 435, 80, "Name", 110)
AddGadgetColumn(0, 1, "Address", 300)
AddGadgetItem(0, -1, "Harry Rannit" + #LF$ + "12 Parliament Way, Battle Street, By the Bay")
AddGadgetItem(0, -1, "Ginger Brokeit" + #LF$ + "130 PureBasic Road, BigTown, CodeCity")

SetListIconColumnJustification(0, 0, #PB_ListIcon_JustifyColumnRight)

Repeat
Until WaitWindowEvent() = #PB_Event_CloseWindow

Posted: **Wed Feb 22, 2012 2:10 am**

Many thanks, Shardik.

Posted: **Fri Oct 12, 2012 10:30 pm**

In my above cross-platform example the Mac part is for PB's carbon implementation (PB 4.61 and older or PB 5.00 with subsystem Carbon). Beginning with PB 5.00 PureBasic is based on the cocoa framework with a totally different API. Therefore I have programmed a separate solution for cocoa:
http://www.purebasic.fr/english/viewtop ... 5&start=28

To use this example code in your own cross-platform programs in PB 5.00 you have to download wilbert's CocoaMessage userlib (link in 1st posting of the above thread) and to save the lib (available for 32 and 64 bit) in your PB installation's userlib folder!

Posted: **Wed Apr 10, 2013 11:38 am**

Shardik, you are so great!

Thank you very much.

Jean.

Posted: **Mon Feb 08, 2016 8:18 pm**

After adding this line to shardiks code...

Code: Select all

CompilerSelect #PB_Compiler_OS
  CompilerCase #PB_OS_Linux
    ImportC ""
    	g_object_set_double(*Object, Property.P-ASCII, Value.D, Null) As "g_object_set"
       ;>>>
    	gtk_cell_layout_get_cells(*cell_layout)
       ;<<<
    EndImport

and replace the following disabled line with the following...

Code: Select all

;         *CellRenderers = gtk_tree_view_column_get_cell_renderers_(*Column)
        *CellRenderers = gtk_cell_layout_get_cells(*Column)

the code example still works on Linux with gtk2 and gtk3.

Regards, Charly

Posted: **Mon Feb 08, 2016 9:04 pm**

Thanks a lot, Charly.

Posted: **Mon Feb 08, 2016 11:47 pm**

amazing work! I never would've thought this possible (especially cross-OS!) without a custom control

Posted: **Tue Feb 09, 2016 9:42 am**

Posted: **Tue Jan 31, 2017 1:10 pm**

I have not see this code

Thanks SHARDIK for sharing

A little bit late

Posted: **Thu Feb 02, 2017 10:09 pm**

My last cross-platform code example is from 2012 and therefore still contains MacOS code for the Carbon framework. The last PureBasic version which is able to run this code example on MacOS is PB 5.11 with subsystem "Carbon". Although I already posted this link inside this thread to a Cocoa solution, for your convenience I have now replaced the Carbon part by the linked Cocoa part so that this example is now working with current PB versions on MacOS (tested successfully on MacOS 10.6.8 'Snow Leopard' with PB 5.44 x86 in both ASCII and Unicode mode and on MacOS 10.9.5 'Mavericks' with PB 5.44 x86 and x64 in both ASCII and Unicode mode).

Furthermore I have included Charly's suggested change in order to be able to run the example on Linux with both GTK2 and GTK3 (Thank you for that hint, Charly!).

Code: Select all

EnableExplicit

CompilerSelect #PB_Compiler_OS
  CompilerCase #PB_OS_Linux
    ImportC ""
      g_object_set_double(*Object, Property.P-ASCII, Value.D,
        Null) As "g_object_set"
      gtk_cell_layout_get_cells(*CellLayout)
      gtk_tree_view_column_set_alignment(*TreeColumn.GtkTreeViewColumn,
        Alignment.F)
    EndImport
CompilerEndSelect

Enumeration
  #PB_ListIcon_JustifyColumnLeft
  #PB_ListIcon_JustifyColumnCenter
  #PB_ListIcon_JustifyColumnRight
EndEnumeration

Procedure SetListIconColumnJustification(ListIconID.I, Column.I, Alignment.I)
  CompilerSelect #PB_Compiler_OS
    CompilerCase #PB_OS_Linux
      Protected AlignmentFactor.F
      Protected *CellRenderers
      Protected *Column
      Protected Count.I
      Protected i.I

      Select Alignment
        Case #PB_ListIcon_JustifyColumnLeft
          AlignmentFactor = 0.0
        Case #PB_ListIcon_JustifyColumnCenter
          AlignmentFactor = 0.5
        Case #PB_ListIcon_JustifyColumnRight
          AlignmentFactor = 1.0
      EndSelect

      *Column = gtk_tree_view_get_column_(GadgetID(ListIconID), Column)

      If *Column
        gtk_tree_view_column_set_alignment(*Column, AlignmentFactor)
        *CellRenderers = gtk_cell_layout_get_cells(*Column)

        If *CellRenderers
          Count = g_list_length_(*CellRenderers)

          For i = 0 To Count - 1
            g_object_set_double(g_list_nth_data_(*CellRenderers, i), "xalign",
              AlignmentFactor, #Null)
          Next i         

          g_list_free_(*CellRenderers)
        EndIf
      EndIf
    CompilerCase #PB_OS_MacOS
      Protected ColumnHeaderCell.I
      Protected ColumnObject.I
      Protected ColumnObjectArray.I

      Select Alignment
        Case #PB_ListIcon_JustifyColumnLeft
          Alignment = #NSLeftTextAlignment
        Case #PB_ListIcon_JustifyColumnCenter
          Alignment = #NSCenterTextAlignment
        Case #PB_ListIcon_JustifyColumnRight
          Alignment = #NSRightTextAlignment
      EndSelect

      ; ----- Justify text of column cells
      CocoaMessage(@ColumnObjectArray, GadgetID(ListIconID), "tableColumns")
      CocoaMessage(@ColumnObject, ColumnObjectArray, "objectAtIndex:", Column)
      CocoaMessage(0, CocoaMessage(0, ColumnObject, "dataCell"), "setAlignment:", Alignment)
      
      ; ----- Justify text of column header
      CocoaMessage(@ColumnHeaderCell, ColumnObject, "headerCell")
      CocoaMessage(0, ColumnHeaderCell, "setAlignment:", Alignment)
      
      ; ----- Redraw ListIcon contents to see change
      CocoaMessage(0, GadgetID(ListIconID), "reloadData")
    CompilerCase #PB_OS_Windows
      Protected ListIconColumn.LV_COLUMN

      ListIconColumn\mask = #LVCF_FMT

      Select Alignment
        Case #PB_ListIcon_JustifyColumnLeft
          ListIconColumn\fmt = #LVCFMT_LEFT
        Case #PB_ListIcon_JustifyColumnCenter
          ListIconColumn\fmt = #LVCFMT_CENTER
        Case #PB_ListIcon_JustifyColumnRight
          ListIconColumn\fmt = #LVCFMT_RIGHT
      EndSelect

      SendMessage_(GadgetID(ListIconID), #LVM_SETCOLUMN, Column, @ListIconColumn)
  CompilerEndSelect
EndProcedure

OpenWindow(0, 200, 100, 445, 90, "Right justify 1st column")
ListIconGadget(0, 5, 5, 435, 80, "Name", 110)
AddGadgetColumn(0, 1, "Address", 300)
AddGadgetItem(0, -1, "Harry Rannit" + #LF$ + "12 Parliament Way, Battle Street, By the Bay")
AddGadgetItem(0, -1, "Ginger Brokeit" + #LF$ + "130 PureBasic Road, BigTown, CodeCity")

SetListIconColumnJustification(0, 0, #PB_ListIcon_JustifyColumnRight)

Repeat
Until WaitWindowEvent() = #PB_Event_CloseWindow

Update: I have added the corrected GTK API function gtk_tree_view_column_set_alignment(*TreeColumn, Alignment.F) to the Linux ImportC block because the predefined PureBasic function declares incorrectly Alignment as Integer which resulted in missing header alignment when run on Linux. Thank you to eck49 for reporting the problem!

Posted: **Fri Feb 26, 2021 6:23 pm**

@Shardik
Thanks for this code, which is just what I want, except that the alignment of the headers seems to be displaced. Help!

Linux, Ubuntu 16.04 not sure which gtk flavour, PB 5.70.

Using the code from the 2/2/2017 post in this thread, but adapting the test code at the bottom to this

Code: Select all

OpenWindow(0, 200, 100, 999, 350, "Show Listicon justifications")
ListIconGadget(0, 5, 5, 835, 80, "Name", 110)
AddGadgetColumn(0, 1, "Address", 350)
AddGadgetColumn(0, 2, "Phone", 200)
AddGadgetColumn(0, 3, "--", 20)
AddGadgetItem(0, -1, "Harry Rannit" + #LF$ + "12 Parliament Way, Battle Street, By the Bay" + #LF$ + "45678")
AddGadgetItem(0, -1, "Ginger Brokeit" + #LF$ + "130 PureBasic Road, BigTown, CodeCity" + #LF$ + "678 998")

SetListIconColumnJustification(0, 0, #PB_ListIcon_JustifyColumnRight)
SetListIconColumnJustification(0, 1, #PB_ListIcon_JustifyColumnCenter)
SetListIconColumnJustification(0, 2, #PB_ListIcon_JustifyColumnLeft)

ListIconGadget(1, 5, 100, 835, 80, "Who", 110)
AddGadgetColumn(1, 1, "Where", 350)
AddGadgetColumn(1, 2, "Number", 200)
AddGadgetColumn(1, 3, "--", 20)
AddGadgetItem(1, -1, "Roger Bodgedit" + #LF$ + "999 Duff Place, Codswallop" + #LF$ + "07777 45678")
AddGadgetItem(1, -1, "Fred Fixedit" + #LF$ + "White House, NotThatOne, Gleeful" + #LF$ + "Fortify 245")

SetListIconColumnJustification(1, 2, #PB_ListIcon_JustifyColumnRight)
SetListIconColumnJustification(1, 1, #PB_ListIcon_JustifyColumnCenter)
SetListIconColumnJustification(1, 0, #PB_ListIcon_JustifyColumnLeft)

Repeat
Until WaitWindowEvent() = #PB_Event_CloseWindow

(In each case the last column, col3, is just a dummy to guarantee the whole of col2 is visible).

The listicon headers are justified thus:
Upper col0 Left, cols 1&2 Centre
Lower col0 Centre col1 Right and the header text for col2 is nowhere to be seen.

If I change the order of the second set of calls to the natural order, 0,1,2 instead of 2,1,0 both listicons are affected.
Upper col0 Left, col1 Right, col2 Centre
Lower col0 Left, col1 Left, col2 Centre

In every case the data items are aligned as intended, it is only the headers which are not.
The C importation is beyond my ken. Help!

Posted: **Fri Feb 26, 2021 9:12 pm**

eck49 wrote:Thanks for this code, which is just what I want, except that the alignment of the headers seems to be displaced. Help!

You are right. The problem is a wrong internal declaration in PureBasic of the GTK API function gtk_tree_view_column_set_alignment_(*TreeColumn, xalign). Alignment has to be declared as Float in order to work correctly.

I have therefore changed my above code example from 02.02.2017 accordingly and added the corrected GTK API function gtk_tree_view_column_set_alignment(*TreeColumn, Alignment.F) to the ImportC block.

Posted: **Wed Mar 03, 2021 4:22 pm**

Late to the party, but thank you Shardik for your cross-platform alignment code (both here, and elsewhere for TextGadgets) - exactly what I needed. Good work !

Posted: **Wed Mar 03, 2021 6:57 pm**

pierre2 wrote:Late to the party, but thank you Shardik for your cross-platform alignment code (both here, and elsewhere for TextGadgets) - exactly what I needed. Good work !

You are welcome!

Posted: **Sun Dec 04, 2022 1:23 pm**

Using Linux Mint 21 Vannessa Mate, when I compile I get this message:

gtk_tree_view_column_set_alignment() is not a function, array, list, map or macro.

Is anyone able to point me in the right direction, please ?

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Cross-platform column justification of ListIconGadget

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Re: Cross-platform column justification of ListIconGadget

Re: Cross-platform column justification of ListIconGadget

Re: Cross-platform column justification of ListIconGadget

Re: Cross-platform column justification of ListIconGadget

Re: Cross-platform column justification of ListIconGadget

Re: Cross-platform column justification of ListIconGadget

Re: Cross-platform column justification of ListIconGadget

Re: Cross-platform column justification of ListIconGadget

Re: Cross-platform column justification of ListIconGadget

Re: Cross-platform column justification of ListIconGadget

Re: Cross-platform column justification of ListIconGadget