Changeset 769 for trunk/src/gui/painting/qpainter.cpp

Timestamp:

Aug 2, 2010, 9:27:30 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.3 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/gui/painting/qpainter.cpp (modified) (4 diffs)

trunk/src/gui/painting/qpainter.cpp

@@ -709 +709 @@
         if (penBrush.style() == Qt::TexturePattern)
             penTextureAlpha = qHasPixmapTexture(penBrush)
-                              ? penBrush.texture().hasAlpha()
+                              ? (penBrush.texture().depth() > 1) && penBrush.texture().hasAlpha()
                               : penBrush.textureImage().hasAlphaChannel();
         bool brushTextureAlpha = false;
-        if (s->brush.style() == Qt::TexturePattern)
+        if (s->brush.style() == Qt::TexturePattern) {
             brushTextureAlpha = qHasPixmapTexture(s->brush)
-                                ? s->brush.texture().hasAlpha()
+                                ? (s->brush.texture().depth() > 1) && s->brush.texture().hasAlpha()
                                 : s->brush.textureImage().hasAlphaChannel();
+        }
         if (((penBrush.style() == Qt::TexturePattern && penTextureAlpha)
              || (s->brush.style() == Qt::TexturePattern && brushTextureAlpha))
@@ -1987 +1988 @@
 
     Note that only the states the underlying paint engine changes will be reset
-    to their respective default states. If, for example, the OpenGL polygon
-    mode is changed by the user inside a beginNativePaint()/endNativePainting()
-    block, it will not be reset to the default state by endNativePainting().
-
-    Here is an example that shows intermixing of painter commands
-    and raw OpenGL commands:
+    to their respective default states. The states we reset may change from
+    release to release. The following states are currently reset in the OpenGL
+    2 engine:
+
+    \list
+    \i blending is disabled
+    \i the depth, stencil and scissor tests are disabled
+    \i the active texture unit is reset to 0
+    \i the depth mask, depth function and the clear depth are reset to their
+    default values
+    \i the stencil mask, stencil operation and stencil function are reset to
+    their default values
+     \i the current color is reset to solid white
+    \endlist
+
+    If, for example, the OpenGL polygon mode is changed by the user inside a
+    beginNativePaint()/endNativePainting() block, it will not be reset to the
+    default state by endNativePainting(). Here is an example that shows
+    intermixing of painter commands and raw OpenGL commands:
 
     \snippet doc/src/snippets/code/src_gui_painting_qpainter.cpp 21
@@ -5760 +5774 @@
         gf.chars = engine.layoutData->string.unicode() + si.position;
         gf.num_chars = engine.length(item);
-        gf.width = si.width;
+        if (engine.forceJustification) {
+            for (int j=0; j<gf.glyphs.numGlyphs; ++j)
+                gf.width += gf.glyphs.effectiveAdvance(j);
+        } else {
+            gf.width = si.width;
+        }
         gf.logClusters = engine.logClusters(&si);
 
         drawTextItem(QPointF(x.toReal(), p.y()), gf);
 
-        x += si.width;
+        x += gf.width;
     }
 }
@@ -7788 +7807 @@
             QTextLine line = textLayout.lineAt(i);
 
+            qreal advance = textLayout.engine()->lines[i].textAdvance.toReal();
             if (tf & Qt::AlignRight)
-                xoff = r.width() - line.naturalTextWidth();
+                xoff = r.width() - advance;
             else if (tf & Qt::AlignHCenter)
-                xoff = (r.width() - line.naturalTextWidth())/2;
+                xoff = (r.width() - advance)/2;
 
             line.draw(painter, QPointF(r.x() + xoff + line.x(), r.y() + yoff));