Merge branch '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2 into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/oslo-staging-2:
  Fixed error reporting in grayraster and reduced default pool size.
  Add QTextOption API to QStaticText

7 files changed, 74 insertions, 28 deletions

diff --git a/src/gui/painting/qgrayraster.c b/src/gui/painting/qgrayraster.c
index ff2469cbea..5e7c67a13a 100644
--- a/src/gui/painting/qgrayraster.c
+++ b/src/gui/painting/qgrayraster.c
@@ -156,6 +156,7 @@
 #define ErrRaster_Invalid_Outline   -1
 #define ErrRaster_Invalid_Argument  -3
 #define ErrRaster_Memory_Overflow   -4
+#define ErrRaster_OutOfMemory       -6
 
 #define QT_FT_BEGIN_HEADER
 #define QT_FT_END_HEADER
@@ -222,7 +223,6 @@
 #define DOWNSCALE( x )  ( (x) << ( 6 - PIXEL_BITS ) )
 #endif
 
-
   /*************************************************************************/
   /*                                                                       */
   /*   TYPE DEFINITIONS                                                    */
@@ -1757,8 +1757,7 @@
 #ifdef DEBUG_GRAYS
           fprintf( stderr, "Rotten glyph!\n" );
 #endif
-          /* == Raster_Err_OutOfMemory in qblackraster.c */
-          return -6;
+          return ErrRaster_OutOfMemory;
         }
 
         if ( bottom-top >= ras.band_size )
@@ -1784,7 +1783,7 @@
 
 
   static int
-  gray_raster_render( PRaster                  raster,
+  gray_raster_render( QT_FT_Raster                  raster,
                       const QT_FT_Raster_Params*  params )
   {
     const QT_FT_Outline*  outline    = (const QT_FT_Outline*)params->source;
@@ -1795,6 +1794,12 @@
     if ( !raster || !raster->buffer || !raster->buffer_size )
       return ErrRaster_Invalid_Argument;
 
+    // If raster object and raster buffer are allocated, but
+    // raster size isn't of the minimum size, indicate out of
+    // memory.
+    if (raster && raster->buffer && raster->buffer_size < MINIMUM_POOL_SIZE )
+      return ErrRaster_OutOfMemory;
+
     /* return immediately if the outline is empty */
     if ( outline->n_points == 0 || outline->n_contours <= 0 )
       return 0;
@@ -1874,19 +1879,15 @@
   /****                         a static object.                  *****/
 
   static int
-  gray_raster_new( void *  memory,
-                   QT_FT_Raster*  araster )
+  gray_raster_new( QT_FT_Raster*  araster )
   {
-    if (memory)
-      fprintf(stderr, "gray_raster_new(), memory ignored");
-    memory = malloc(sizeof(TRaster));
-    if (!memory) {
+    *araster = malloc(sizeof(TRaster));
+    if (!*araster) {
         *araster = 0;
         return ErrRaster_Memory_Overflow;
     }
-    QT_FT_MEM_ZERO(memory, sizeof(TRaster));
+    QT_FT_MEM_ZERO(*araster, sizeof(TRaster));
 
-    *araster = (QT_FT_Raster) memory;
     return 0;
   }
 
@@ -1905,10 +1906,9 @@
   {
     PRaster  rast = (PRaster)raster;
 
-
     if ( raster )
     {
-      if ( pool_base && pool_size >= (long)sizeof ( TWorker ) + 2048 )
+      if ( pool_base && ( pool_size >= MINIMUM_POOL_SIZE ) )
       {
         PWorker  worker = (PWorker)pool_base;
 
@@ -1923,6 +1923,13 @@
         rast->band_size   = (int)( rast->buffer_size /
                                      ( sizeof ( TCell ) * 8 ) );
       }
+      else if ( pool_base)
+      { // Case when there is a raster pool allocated, but it
+        // doesn't have the minimum size (and so memory will be reallocated)
+          rast->buffer = pool_base;
+          rast->worker = NULL;
+          rast->buffer_size = pool_size;
+      }
       else
       {
         rast->buffer      = NULL;
diff --git a/src/gui/painting/qgrayraster_p.h b/src/gui/painting/qgrayraster_p.h
index 4463fc9b00..ad595b864a 100644
--- a/src/gui/painting/qgrayraster_p.h
+++ b/src/gui/painting/qgrayraster_p.h
@@ -89,6 +89,10 @@
 #define QT_FT_EXPORT_VAR( x )  extern  x
 #endif
 
+/* Minimum buffer size for raster object, that accounts
+   for TWorker and TCell sizes.*/
+#define MINIMUM_POOL_SIZE 4096
+
   QT_FT_EXPORT_VAR( const QT_FT_Raster_Funcs )  qt_ft_grays_raster;
 
 
diff --git a/src/gui/painting/qpaintengine_raster.cpp b/src/gui/painting/qpaintengine_raster.cpp
index 08e14fb7f7..9f1128bd00 100644
--- a/src/gui/painting/qpaintengine_raster.cpp
+++ b/src/gui/painting/qpaintengine_raster.cpp
@@ -345,7 +345,7 @@ void QRasterPaintEngine::init()
     // The antialiasing raster.
     d->grayRaster.reset(new QT_FT_Raster);
     Q_CHECK_PTR(d->grayRaster.data());
-    if (qt_ft_grays_raster.raster_new(0, d->grayRaster.data()))
+    if (qt_ft_grays_raster.raster_new(d->grayRaster.data()))
         QT_THROW(std::bad_alloc()); // an error creating the raster is caused by a bad malloc
 
 
@@ -4185,7 +4185,11 @@ void QRasterPaintEnginePrivate::rasterize(QT_FT_Outline *outline,
         return;
     }
 
-    const int rasterPoolInitialSize = 8192;
+    // Initial size for raster pool is MINIMUM_POOL_SIZE so as to
+    // minimize memory reallocations. However if initial size for
+    // raster pool is changed for lower value, reallocations will
+    // occur normally.
+    const int rasterPoolInitialSize = MINIMUM_POOL_SIZE;
     int rasterPoolSize = rasterPoolInitialSize;
     unsigned char *rasterPoolBase;
 #if defined(Q_WS_WIN64)
@@ -4229,7 +4233,7 @@ void QRasterPaintEnginePrivate::rasterize(QT_FT_Outline *outline,
         error = qt_ft_grays_raster.raster_render(*grayRaster.data(), &rasterParams);
 
         // Out of memory, reallocate some more and try again...
-        if (error == -6) { // -6 is Result_err_OutOfMemory
+        if (error == -6) { // ErrRaster_OutOfMemory from qgrayraster.c
             int new_size = rasterPoolSize * 2;
             if (new_size > 1024 * 1024) {
                 qWarning("QPainter: Rasterization of primitive failed");
@@ -4255,7 +4259,7 @@ void QRasterPaintEnginePrivate::rasterize(QT_FT_Outline *outline,
             Q_CHECK_PTR(rasterPoolBase); // note: we just freed the old rasterPoolBase. I hope it's not fatal.
 
             qt_ft_grays_raster.raster_done(*grayRaster.data());
-            qt_ft_grays_raster.raster_new(0, grayRaster.data());
+            qt_ft_grays_raster.raster_new(grayRaster.data());
             qt_ft_grays_raster.raster_reset(*grayRaster.data(), rasterPoolBase, rasterPoolSize);
         } else {
             done = true;
diff --git a/src/gui/painting/qrasterdefs_p.h b/src/gui/painting/qrasterdefs_p.h
index c33fa5701e..19a0b16974 100644
--- a/src/gui/painting/qrasterdefs_p.h
+++ b/src/gui/painting/qrasterdefs_p.h
@@ -81,7 +81,6 @@
 
 QT_FT_BEGIN_HEADER
 
-
   /*************************************************************************/
   /*                                                                       */
   /* <Section>                                                             */
@@ -837,7 +836,7 @@ QT_FT_BEGIN_HEADER
   /*    A handle (pointer) to a raster object.  Each object can be used    */
   /*    independently to convert an outline into a bitmap or pixmap.       */
   /*                                                                       */
-  typedef struct QT_FT_RasterRec_*  QT_FT_Raster;
+  typedef struct TRaster_ *QT_FT_Raster;
 
 
   /*************************************************************************/
@@ -1118,8 +1117,7 @@ QT_FT_BEGIN_HEADER
   /*    ignored by a given raster implementation.                          */
   /*                                                                       */
   typedef int
-  (*QT_FT_Raster_NewFunc)( void*       memory,
-                        QT_FT_Raster*  raster );
+  (*QT_FT_Raster_NewFunc)( QT_FT_Raster*  raster );
 
 #define  QT_FT_Raster_New_Func    QT_FT_Raster_NewFunc
 
diff --git a/src/gui/text/qstatictext.cpp b/src/gui/text/qstatictext.cpp
index 10870aa0cb..c7424556d4 100644
--- a/src/gui/text/qstatictext.cpp
+++ b/src/gui/text/qstatictext.cpp
@@ -324,6 +324,26 @@ QStaticText::PerformanceHint QStaticText::performanceHint() const
 }
 
 /*!
+   Sets the text option structure that controls the layout process to the given \a textOption.
+
+   \sa textOption()
+*/
+void QStaticText::setTextOption(const QTextOption &textOption)
+{
+    detach();
+    data->textOption = textOption;
+    data->invalidate();
+}
+
+/*!
+    Returns the current text option used to control the layout process.
+*/
+QTextOption QStaticText::textOption() const
+{
+    return data->textOption;
+}
+
+/*!
     Sets the preferred width for this QStaticText. If the text is wider than the specified width,
     it will be broken into multiple lines and grow vertically. If the text cannot be split into
     multiple lines, it will be larger than the specified \a textWidth.
@@ -580,6 +600,7 @@ void QStaticTextPrivate::paintText(const QPointF &topLeftPosition, QPainter *p)
         QTextLayout textLayout;
         textLayout.setText(text);
         textLayout.setFont(font);
+        textLayout.setTextOption(textOption);
 
         qreal leading = QFontMetricsF(font).leading();
         qreal height = -leading;
@@ -610,21 +631,26 @@ void QStaticTextPrivate::paintText(const QPointF &topLeftPosition, QPainter *p)
                                       .arg(QString::number(color.blue(), 16), 2, QLatin1Char('0')));
 #endif
         document.setDefaultFont(font);
-        document.setDocumentMargin(0.0);
-        if (textWidth >= 0.0)
-            document.setTextWidth(textWidth);
+        document.setDocumentMargin(0.0);        
 #ifndef QT_NO_TEXTHTMLPARSER
         document.setHtml(text);
 #else
         document.setPlainText(text);
 #endif
+        if (textWidth >= 0.0)
+            document.setTextWidth(textWidth);
+        else
+            document.adjustSize();
+        document.setDefaultTextOption(textOption);
 
-        document.adjustSize();
         p->save();
         p->translate(topLeftPosition);
         document.drawContents(p);
         p->restore();
 
+        if (textWidth >= 0.0)
+            document.adjustSize(); // Find optimal size
+
         actualSize = document.size();
     }
 }
diff --git a/src/gui/text/qstatictext.h b/src/gui/text/qstatictext.h
index f3bef93f05..4febde2ef1 100644
--- a/src/gui/text/qstatictext.h
+++ b/src/gui/text/qstatictext.h
@@ -48,7 +48,7 @@
 
 #include <QtGui/qtransform.h>
 #include <QtGui/qfont.h>
-
+#include <QtGui/qtextoption.h>
 
 QT_BEGIN_HEADER
 
@@ -79,6 +79,9 @@ public:
     void setTextWidth(qreal textWidth);
     qreal textWidth() const;
 
+    void setTextOption(const QTextOption &textOption);
+    QTextOption textOption() const;
+
     QSizeF size() const;
 
     void prepare(const QTransform &matrix = QTransform(), const QFont &font = QFont());
diff --git a/src/gui/text/qstatictext_p.h b/src/gui/text/qstatictext_p.h
index 1a962918d5..cb60626b8a 100644
--- a/src/gui/text/qstatictext_p.h
+++ b/src/gui/text/qstatictext_p.h
@@ -53,6 +53,8 @@
 // We mean it.
 //
 
+#include "qstatictext.h"
+
 #include <private/qtextureglyphcache_p.h>
 #include <QtGui/qcolor.h>
 
@@ -148,12 +150,14 @@ public:
     QFixedPoint *positionPool;           // 4 bytes per text
     QChar *charPool;                     // 4 bytes per text
 
+    QTextOption textOption;              // 28 bytes per text
+
     unsigned char needsRelayout            : 1; // 1 byte per text
     unsigned char useBackendOptimizations  : 1;
     unsigned char textFormat               : 2;
     unsigned char untransformedCoordinates : 1;
                                          // ================
-                                         // 167 bytes per text
+                                         // 195 bytes per text
 
     static QStaticTextPrivate *get(const QStaticText *q);
 };