TListBox,several columns,insert row

[jordiperezartigues]

I am trying to fill a TListBox with 3 columns, i am doing:

listBox = new TListBox(TRect(10,3,maxLx + 12,20),  3,  0);
listBoxRec->items = listData;

listData->insert( newStr(name1);
listData->insert( newStr(age1);
listData->insert( newStr(cp1);

listBox->setData(listBoxRec);

Here only the first column in the TListBox is filled.
How shall i do to insert the col1, col2 and col3 of each row?

[zinpub]

Use TListView

[jordiperezartigues]

listView = new TListViewer(TRect(10,3,maxLx + 12,20),3,0,0);
listBoxRec->items = listData;
listView->setData(listBoxRec);

I have replaced TListBox for TListViewer. But how i could fill the columns of each row?

[magiblot]

Hi!

The numCols parameter of TListViewer only allows spreading a single data collection accross multiple columns, as is the case of the Open File dialog:

There is no standard view that does what you are trying to achieve. However, I found an old spreadsheet example in http://www.sigala.it/sergio/tvision/resources.html:

Although it is a bit rudimentary (e.g., it does not support adding rows or columns dynamically), you may find it helpful.

You can download it here: spread.zip. sprdview.cpp contains the class implementations and spread.cpp contains the main function.

Related discussion: #54

Cheers.

[jordiperezartigues]

i see that accepts only Double type in cells.
could be easy to use string text also in cell value?

[magiblot]

Yes, simply replace double with a string type (e.g., std::string) in the definition of struct ListRec in sprdview.h and then modify the way the val property of ListRec is accessed in TListViewBox::getText and TListViewBox::putData (sprdview.cpp), since you no longer need to convert to/from double.

[jordiperezartigues]

I modified the table to contain strings.
i would like to highlight the entire row instead single cell when select, can you point me how to begin?

[magiblot]

I modified the table to contain strings.
i would like to highlight the entire row instead single cell when select, can you point me how to begin?

This must be done in the draw method of the class that displays the table. For example, in the TMatrixViewer::draw of the sample application I shared:

--- a/sprdview.cpp
+++ b/sprdview.cpp
@@ -100,7 +100,7 @@ void TMatrixViewer::draw()
             scOff = 0;
          }
          else if (column < numColumns && row < numRows &&
-                   isSelected(column, row))
+                   focusedRow == row)
          {
             color = selectedColor;
             scOff = 2;

That change will cause the whole row to be drawn with a different color. Although that would pervert the intended palette usage, since the selectedColor variable here is meant to be the color of the selected cell when the windows containing the spreadsheet is not focused. A proper solution would be to add a new palette entry for this use case. Here's an example, although even this is not perfect:

--- a/sprdview.cpp
+++ b/sprdview.cpp
@@ -26,7 +26,21 @@
 
 const int cmUpdateItemNumber   = 901;
 
-#define cpMatrixViewer "\x1A\x1A\x1B\x1C\x1D\x06"
+/* ---------------------------------------------------------------------- */
+/*      class TMatrixViewer                                               */
+/*                                                                        */
+/*      Palette layout                                                    */
+/*        1 = Normal (view focused)                                       */
+/*        2 = Normal (view unfocused)                                     */
+/*        3 = Selected cell (view focused)                                */
+/*        4 = Selected cell (view unfocused)                              */
+/*        5 = Column separator                                            */
+/*        6 = Header                                                      */
+/*        7 = Selected row (view focused)                                 */
+/*        8 = Selected row (view unfocused)                               */
+/* ---------------------------------------------------------------------- */
+
+#define cpMatrixViewer "\x1A\x1A\x1B\x1C\x1D\x06\x0A\x1A"
 
 const char * const _NEAR TMatrixViewer::name = "TMatrixViewer";
 
@@ -61,19 +75,25 @@ TMatrixViewer::TMatrixViewer(const TRect& bounds, TScrollBar *aHScrollBar,
 void TMatrixViewer::draw()
 {
    short i, row, column;
-   ushort normalColor, selectedColor, focusedColor, color;
+   TColorAttr normalColor, selectedCellColor, selectedRowColor, color;
    TDrawBuffer b;
    uchar scOff;
    ushort thisWidth;
 
-   focusedColor = getColor(3);
-   selectedColor = getColor(4);
    if (headingMode)
       normalColor = getColor(6);
    else if ((state & (sfSelected | sfActive)) == (sfSelected | sfActive))
+   {
       normalColor = getColor(1);
+      selectedCellColor = getColor(3);
+      selectedRowColor = getColor(7);
+   }
    else
+   {
       normalColor = getColor(2);
+      selectedCellColor = getColor(4);
+      selectedRowColor = getColor(8);
+   }
 
    short posColumn = 0;
    for (column = leftColumn; posColumn <= size.x; column++)
@@ -95,14 +115,19 @@ void TMatrixViewer::draw()
                 focusedRow == row && focusedColumn == column &&
                 numRows > 0)
          {
-            color = focusedColor;
+            color = selectedCellColor;
             setCursor(posColumn + 1, i);  // Move the hardware cursor.
             scOff = 0;
          }
          else if (column < numColumns && row < numRows &&
                    isSelected(column, row))
          {
-            color = selectedColor;
+            color = selectedCellColor;
             scOff = 2;
          }
+         else if (focusedRow == row)
+         {
+            color = selectedRowColor;
+            scOff = 4;
+         }
          else

Defining palette indices is cumbersome and confusing, so instead of using a custom palette (TMatrixViewer::getPalette()) it may be simpler to override the mapColor method and hardcode the colors there (see here).