[composer] Tweak calculation of total height of table (Sponsored by

City of Uster, Switzerland)

Author: nyalldawson

src/core/composer/qgscomposertablev2.cpp

@@ -155,10 +155,20 @@ int QgsComposerTableV2::rowsVisible( const int frameIndex ) const
   }
   QRectF frameExtent = frame( frameIndex )->extent();
 
-  //calculate header height
-  double headerHeight = 0;
+  bool includeHeader = false;
   if (( mHeaderMode == QgsComposerTableV2::FirstFrame && frameIndex < 1 )
       || ( mHeaderMode == QgsComposerTableV2::AllFrames ) )
+  {
+    includeHeader = true;
+  }
+  return rowsVisible( frameExtent.height(), includeHeader );
+}
+
+int QgsComposerTableV2::rowsVisible( const double frameHeight, const bool includeHeader ) const
+{
+  //calculate header height
+  double headerHeight = 0;
+  if ( includeHeader )
   {
     //frame has a header
     headerHeight = 2 * ( mShowGrid ? mGridStrokeWidth : 0 ) + 2 * mCellMargin +  QgsComposerUtils::fontAscentMM( mHeaderFont );
@@ -170,7 +180,7 @@ int QgsComposerTableV2::rowsVisible( const int frameIndex ) const
   }
 
   //remaining height available for content rows
-  double contentHeight = frameExtent.height() - headerHeight;
+  double contentHeight = frameHeight - headerHeight;
 
   //calculate number of visible rows
   double rowHeight = ( mShowGrid ? mGridStrokeWidth : 0 ) + 2 * mCellMargin + QgsComposerUtils::fontAscentMM( mContentFont );
@@ -519,7 +529,8 @@ void QgsComposerTableV2::refreshAttributes()
 
   //since contents have changed, we also need to recalculate the column widths
   //and size of table
-  adjustFrameToSize();
+  //gettablecontents does this!
+// adjustFrameToSize();
 }
 
 bool QgsComposerTableV2::calculateMaxColumnWidths()
@@ -602,6 +613,14 @@ double QgsComposerTableV2::totalHeight() const
     }
   }
 
+  if ( mResizeMode == QgsComposerMultiFrame::ExtendToNextPage )
+  {
+    heightOfLastFrame = mComposition->paperHeight();
+    bool hasHeader = (( mHeaderMode == QgsComposerTableV2::FirstFrame && numberExistingFrames < 1 )
+                      || ( mHeaderMode == QgsComposerTableV2::AllFrames ) );
+    rowsVisibleInLastFrame = rowsVisible( heightOfLastFrame, hasHeader );
+  }
+
   //calculate how many rows left to show
   int remainingRows = mTableContents.length() - rowsAlreadyShown;
 
@@ -685,9 +704,10 @@ void QgsComposerTableV2::drawVerticalGridLines( QPainter *painter, const QMap<in
 void QgsComposerTableV2::adjustFrameToSize()
 {
   mTableSize = QSizeF( totalWidth(), totalHeight() );
+
+  recalculateFrameSizes();
+
   //force recalculation of frame rects, so that they are set to the correct
   //fixed and minimum frame sizes
   recalculateFrameRects();
-
-  recalculateFrameSizes();
 }

src/core/composer/qgscomposertablev2.h

@@ -329,6 +329,8 @@ class CORE_EXPORT QgsComposerTableV2: public QgsComposerMultiFrame
      */
     int rowsVisible( const int frameIndex ) const;
 
+    int rowsVisible( const double frameHeight, const bool includeHeader ) const;
+
     /**Calculates a range of rows which should be visible in a given
      * rectangle.
      * @param extent visible extent
@@ -337,7 +339,6 @@ class CORE_EXPORT QgsComposerTableV2: public QgsComposerMultiFrame
      */
     QPair<int, int> rowRange( const QRectF extent, const int frameIndex ) const;
 
-
     /**Draws the horizontal grid lines for the table.
      * @param painter destination painter for grid lines
      * @param rows number of rows shown in table

tests/src/core/testqgscomposertablev2.cpp

@@ -47,6 +47,7 @@ class TestQgsComposerTableV2: public QObject
     void attributeTableRender(); //test rendering attribute table
 
     void attributeTableExtend();
+    void attributeTableRepeat();
 
   private:
     QgsComposition* mComposition;
@@ -314,7 +315,32 @@ void TestQgsComposerTableV2::attributeTableExtend()
   //now auto remove extra created frames
   mComposerAttributeTable->setMaximumNumberOfFeatures( 1 );
   bool result = checker.testComposition( mReport, 1 );
+}
+
+void TestQgsComposerTableV2::attributeTableRepeat()
+{
+  mComposerAttributeTable->setResizeMode( QgsComposerMultiFrame::UseExistingFrames );
+  //remove extra frames
+  for ( int idx = mComposerAttributeTable->frameCount(); idx > 0; --idx )
+  {
+    mComposerAttributeTable->removeFrame( idx - 1 );
+  }
+
+  mComposerAttributeTable->setMaximumNumberOfFeatures( 1 );
 
+  //force auto creation of some new frames
+  mComposerAttributeTable->setResizeMode( QgsComposerMultiFrame::RepeatUntilFinished );
+
+  for ( int features = 0; features < 50; ++features )
+  {
+    mComposerAttributeTable->setMaximumNumberOfFeatures( features );
+  }
+
+  //and then the reverse....
+  for ( int features = 50; features > 1; --features )
+  {
+    mComposerAttributeTable->setMaximumNumberOfFeatures( features );
+  }
 }
 
 QTEST_MAIN( TestQgsComposerTableV2 )