chart2: Break labels text and limit the size to the axis size

Previously a long label wouldn't be broken into multiple lines
and be limited to the axis size if the chart sizing was automatic.
This would cause the label to distort the whole chart and make the
chart area very narrow. With this change the label text is limited
to the axis width and gets broken into multiple lines if this is
necessary.

BarChartVeryLongLabel.odp provides a test document which includes
automatic size and fixed size chart are. We make sure the area
that the label text occupies is not larger than the chart wall
size.

Change-Id: If58bfa3e51ab68f720f22df5416ae305401bcd34
Reviewed-on: https://gerrit.libreoffice.org/c/core/+/129814
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/chart2/source/view/main/ChartView.cxx b/chart2/source/view/main/ChartView.cxx
index 56955f4c8f8b..1d8fce7bed9a 100644
--- a/chart2/source/view/main/ChartView.cxx
+++ b/chart2/source/view/main/ChartView.cxx
@@ -1489,7 +1489,9 @@ awt::Rectangle ChartView::impl_createDiagramAndContent( const CreateShapeParam2D
                 || aConsumedOuterRect.getMaxX() < aAvailableOuterRect.getMaxX()
                 || aConsumedOuterRect.getMinY() > aAvailableOuterRect.getMinY()
                 || aConsumedOuterRect.getMinY() < aAvailableOuterRect.getMaxY() )
+            {
                 bLessSpaceConsumedThanExpected = true;
+            }
         }
 
         if (bLessSpaceConsumedThanExpected && !rParam.mbUseFixedInnerSize)
@@ -1497,6 +1499,16 @@ awt::Rectangle ChartView::impl_createDiagramAndContent( const CreateShapeParam2D
             aVDiagram.adjustInnerSize( aConsumedOuterRect );
             pVCooSys->setTransformationSceneToScreen( B3DHomMatrixToHomogenMatrix(
                 createTransformationSceneToScreen( aVDiagram.getCurrentRectangle() ) ));
+
+            // Need to re-adjust again if the labels have changed height because of
+            // text can break. Ideally this shouldn't be needed, but the chart height
+            // isn't readjusted otherwise.
+            pVCooSys->createAxesLabels();
+            aConsumedOuterRect = ShapeFactory::getRectangleOfShape(*xBoundingShape);
+            aVDiagram.adjustInnerSize(aConsumedOuterRect);
+            pVCooSys->setTransformationSceneToScreen(B3DHomMatrixToHomogenMatrix(
+                createTransformationSceneToScreen(aVDiagram.getCurrentRectangle())));
+
         }
         pVCooSys->updatePositions();//todo: logically this belongs to the condition above, but it seems also to be necessary to give the axes group shapes the right bounding rects for hit test -  probably caused by bug i106183 -> check again if fixed
     }