TableView: added resizeToContents and resizeColumnsToContents

These are analogous to QTableView::resizeColumnToContents(i) and
resizeColumnsToContents().  Double-clicking the header
near a width adjustment boundary still provides a means for the user
to do this if the application doesn't do it programmatically.

Change-Id: Ibded0c9f255301b461dac7080901fc6065fdbe5e
Reviewed-by: Caroline Chao <caroline.chao@digia.com>
Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
Reviewed-by: Jens Bache-Wiig <jens.bache-wiig@digia.com>

1 files changed, 21 insertions, 0 deletions

diff --git a/src/controls/TableViewColumn.qml b/src/controls/TableViewColumn.qml
index cbf20945..30551f90 100644
--- a/src/controls/TableViewColumn.qml
+++ b/src/controls/TableViewColumn.qml
@@ -53,6 +53,9 @@ QtObject {
     /*! \internal */
     property Item __view: null
 
+    /*! \internal */
+    property int __index: -1
+
     /*! The title text of the column. */
     property string title
 
@@ -119,4 +122,22 @@ QtObject {
     property Component delegate
 
     Accessible.role: Accessible.ColumnHeader
+
+    /*! Resizes the column so that the implicitWidth of the contents on every row will fit.
+        \since QtQuick.Controls 1.2 */
+    function resizeToContents() {
+        var minWidth = 0
+        var listdata = __view.__listView.children[0]
+        for (var i = 0; __index < 0 && i < __view.__columns.length; ++i)
+            if (__view.__columns[i] === this)
+                __index = i
+        for (var row = 0 ; row < listdata.children.length ; ++row) {
+            var item = listdata.children[row+1]
+            if (item && item.children[1] && item.children[1].children[__index] && item.children[1].children[__index].children[0] &&
+                    item.children[1].children[__index].children[0].hasOwnProperty("implicitWidth"))
+                minWidth = Math.max(minWidth, item.children[1].children[__index].children[0].implicitWidth)
+        }
+        if (minWidth)
+            width = minWidth
+    }
 }