Display values onto a list in a certain way

[Bebeto]

Hello,

I am looking for a way to display values onto a list by having the first value with a forward slash and the rest with an indentation.

In other words this way:

                                   /value

                                       value1

                                       value2

                                       value3

                                       etc.....

 Please see the attachment for a better reference of where the data is received and then populated to the window list.

Thanks for your input

[Al_S]

Bebeto:

I'm not sure where you are having a problem, or what you goal is for the indents, or what criteria you use for indents.  Generally it's more helpful to highlight the section of code you're struggling with.

You can try something like this.

int indent = 0;  // initialize to don't indent

char displayValue[80];

// ...

// after you set the value for current_log_view,

if (indent)

   sprintf(displayValue, "   %s", current_log_view) ;

else

   sprintf(displayValue, "/%s", current_log_view) ;

SetCtrlVal(log_panel, LOG_LOG_TB,displayValue);

// ...

// when you meet whatever criteria you need to indent

indent = 1;

[Bebeto]

Hello Al,

This section of the code is where I am guessing that I need to include a function to have a kind of tree structure display for the list,

// Extract File name and index
                      for(i=0;i<=UL_1_Header_Block.block_size-HEADER_SZ;i++)
                      {
                          cnfg_database_array[i]=*ptr_mem_index++;
                      }
                    Delay(.2);   
                    // determine file name by search for ";" filename delimiter
                    for(i=0;i<UL_2_Header_Block.number_file;i++)
                    {
                        cnfg_file_comma_index = FindPattern (cnfg_database_array, cnfg_file_comma_index+1,
                                                      SEARCH_ENTIRE_STRING, ",", FALSE, FALSE);
                                                      
                        cnfg_file_colon_index = FindPattern (cnfg_database_array, cnfg_file_colon_index+1,
                                                         SEARCH_ENTIRE_STRING,":", FALSE, FALSE);
                                                      
                        if(i>=MAX_FILE_LIST)
                        {
                            fprintf(log_file.Open_fp_main,"%.2d:%.2d:%.2d    DIR DATABASE LIST TOO LONG!\n",
                            ts.tm_hour,ts.tm_min,ts.tm_sec);
                            sprintf(current_log_view,"%.2d:%.2d:%.2d    DIR DATABASE LIST TOO LONG!\n",
                                    ts.tm_hour,ts.tm_min,ts.tm_sec);
                            SetCtrlVal(log_panel, LOG_LOG_TB,current_log_view);
                            
                            break;
                        }
                                                      
                        CopyString (cnfg_display_db[i], 0, cnfg_database_array, cnfg_file_comma_index+1,
                                    (cnfg_file_colon_index-cnfg_file_comma_index)-1);
                                    
                        
                        InsertListItem(dir_list_panel,DIR_LIST_RETR_LIST,i,cnfg_display_db[i],0);

                                            }
                }
            break;

as you may see on the highlighted lines, is where I am thinking I need to do changes, but not sure how...

[Al_S]

Bebeto:

What version of CVI are you using?

If you are listing directory names, do you want to use a tree control instead of a list control?

Look at the treemenu sample that ships with CVI.

Or if you really want to use a listbox, you can apply the same method for cnfg_display_db[i] as I showed for current_log_view.

[Bebeto]

9.0

well the content goes to a list box, so I will try to adapt the example you posted, thanks.

[Al_S]

You are currently using a listbox, but I would suggest that you take a look at the treemenu sample that ships with CVI 9.  You may decide to switch to a tree control once you see what it looks like.

In CVI 9, click on Help, then Find Examples..., then click the Search tab, and enter tree in the Enter keyword(s) box.

[RobertoBozzolo]

Bebeto,

the listbox control does permit you to have indentation, the same as "column alignment" and text colouring, by embedding the appropriate code into the string to display.

You may want to try using "\033p" escape codes to accomodate text position as you want; taking as an example AL code try this:

if (indent)

   sprintf(displayValue, "\033p25l%s", current_log_view) ;

else

   sprintf(displayValue, "%s", current_log_view) ;

SetCtrlVal(log_panel, LOG_LOG_TB,displayValue);

A complete reference for escape codes usable in the listbox control can be found in he online help for "Item label" field in InsertListBox function panel (simply right click on that field to disply it).

The right control to use depends both on application requirements and programmer's habits and ability; in my opinion a listbox is faster to use and execute than a tree; on the other hand the tree has several useful features like the ability to collaps tree branches. That is: it' up to you to decide which control to use, but completely understanding the possibilities of each control can help you in this choice.

[Bebeto · Accepted solution]

thank you guys,

I endend up doing this:

                        if (i==0)
                        {
                           sprintf(current_log_view, "/%s", cnfg_display_db[i]) ;
                        }
                        else
                        {
                           sprintf(current_log_view, "   %s", cnfg_display_db[i]) ;
                        }
                        SetCtrlVal(log_panel, LOG_LOG_TB,cnfg_display_db[i]);
                        
                        
                        InsertListItem(dir_list_panel,DIR_LIST_RETR_LIST,i,current_log_view,0);

and it work just fine!

thanks again