Changeset 846 for trunk/src/gui/painting/qbackingstore.cpp

Timestamp:

May 5, 2011, 5:36:53 AM (14 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/gui/painting/qbackingstore.cpp (modified) (15 diffs)

trunk/src/gui/painting/qbackingstore.cpp

@@ -1 +1 @@
 /****************************************************************************
 **
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
@@ -264 +264 @@
     const QPoint pos(tlwOffset + widget->mapTo(tlw, rect.topLeft()));
     const QRect tlwRect(QRect(pos, rect.size()));
-    if (dirty.intersects(tlwRect))
+    if (fullUpdatePending || dirty.intersects(tlwRect))
         return false; // We don't want to scroll junk.
     return windowSurface->scroll(tlwRect, dx, dy);
@@ -353 +353 @@
     dirtyOnScreen += toClean;
 
-#ifdef Q_WS_QWS
+#if defined(Q_WS_QWS) && !defined(Q_BACKINGSTORE_SUBSURFACES)
     toClean.translate(tlwOffset);
 #endif
@@ -403 +403 @@
     const QRect tlwRect(topLevelRect());
     const QRect surfaceGeometry(windowSurface->geometry());
-    if (surfaceGeometry != tlwRect && surfaceGeometry.size() != tlwRect.size()) {
+    if (fullUpdatePending || (surfaceGeometry != tlwRect && surfaceGeometry.size() != tlwRect.size())) {
         if (widgetDirty) {
             const QRect dirtyTlwRect = QRect(QPoint(), tlwRect.size());
@@ -447 +447 @@
 /*!
     Returns the static content inside the \a parent if non-zero; otherwise the static content
-    for the entire backing store is returned. The content will be clipped to \a withingClipRect
+    for the entire backing store is returned. The content will be clipped to \a withinClipRect
     if non-empty.
 */
@@ -553 +553 @@
         if (!eventAlreadyPosted || updateImmediately)
             sendUpdateRequest(widget, updateImmediately);
+        return;
+    }
+
+    if (fullUpdatePending) {
+        if (updateImmediately)
+            sendUpdateRequest(tlw, updateImmediately);
+        return;
+    }
+
+    if (!windowSurface->hasPartialUpdateSupport()) {
+        fullUpdatePending = true;
+        sendUpdateRequest(tlw, updateImmediately);
         return;
     }
@@ -639 +651 @@
     }
 
+    if (fullUpdatePending) {
+        if (updateImmediately)
+            sendUpdateRequest(tlw, updateImmediately);
+        return;
+    }
+
+    if (!windowSurface->hasPartialUpdateSupport()) {
+        fullUpdatePending = true;
+        sendUpdateRequest(tlw, updateImmediately);
+        return;
+    }
+
     const QRect widgetRect = widget->d_func()->effectiveRectFor(rect);
     const QRect translatedRect(widgetRect.translated(widget->mapTo(tlw, QPoint())));
@@ -834 +858 @@
 QWidgetBackingStore::QWidgetBackingStore(QWidget *topLevel)
     : tlw(topLevel), dirtyOnScreenWidgets(0), hasDirtyFromPreviousSync(false)
+    , fullUpdatePending(0)
 {
     windowSurface = tlw->windowSurface();
@@ -885 +910 @@
     QRect clipR(pd->clipRect());
 #ifdef Q_WS_QWS
-    QWidgetBackingStore *wbs = x->backingStore;
+    QWidgetBackingStore *wbs = x->backingStore.data();
     QWSWindowSurface *surface = static_cast<QWSWindowSurface*>(wbs->windowSurface);
     clipR = clipR.intersected(surface->clipRegion().translated(-toplevelOffset).boundingRect());
@@ -915 +940 @@
     } else {
 
-        QWidgetBackingStore *wbs = x->backingStore;
+        QWidgetBackingStore *wbs = x->backingStore.data();
         QRegion childExpose(newRect & clipR);
 
@@ -958 +983 @@
         return;
 
-    QWidgetBackingStore *wbs = x->backingStore;
+    QWidgetBackingStore *wbs = x->backingStore.data();
     if (!wbs)
         return;
@@ -1123 +1148 @@
                 resetWidget(dirtyWidgets.at(i));
             dirtyWidgets.clear();
+            fullUpdatePending = false;
         }
         return;
@@ -1133 +1159 @@
     bool repaintAllWidgets = false;
 
-    if (inTopLevelResize || surfaceGeometry != tlwRect) {
-        if ((inTopLevelResize || surfaceGeometry.size() != tlwRect.size()) && !updatesDisabled) {
-            if (hasStaticContents()) {
-                // Repaint existing dirty area and newly visible area.
-                const QRect clipRect(0, 0, surfaceGeometry.width(), surfaceGeometry.height());
-                const QRegion staticRegion(staticContents(0, clipRect));
-                QRegion newVisible(0, 0, tlwRect.width(), tlwRect.height());
-                newVisible -= staticRegion;
-                dirty += newVisible;
-                windowSurface->setStaticContents(staticRegion);
-            } else {
-                // Repaint everything.
-                dirty = QRegion(0, 0, tlwRect.width(), tlwRect.height());
-                for (int i = 0; i < dirtyWidgets.size(); ++i)
-                    resetWidget(dirtyWidgets.at(i));
-                dirtyWidgets.clear();
-                repaintAllWidgets = true;
-            }
-        }
+    if ((fullUpdatePending || inTopLevelResize || surfaceGeometry.size() != tlwRect.size()) && !updatesDisabled) {
+        if (hasStaticContents()) {
+            // Repaint existing dirty area and newly visible area.
+            const QRect clipRect(0, 0, surfaceGeometry.width(), surfaceGeometry.height());
+            const QRegion staticRegion(staticContents(0, clipRect));
+            QRegion newVisible(0, 0, tlwRect.width(), tlwRect.height());
+            newVisible -= staticRegion;
+            dirty += newVisible;
+            windowSurface->setStaticContents(staticRegion);
+        } else {
+            // Repaint everything.
+            dirty = QRegion(0, 0, tlwRect.width(), tlwRect.height());
+            for (int i = 0; i < dirtyWidgets.size(); ++i)
+                resetWidget(dirtyWidgets.at(i));
+            dirtyWidgets.clear();
+            repaintAllWidgets = true;
+        }
+    }
+
+    if (inTopLevelResize || surfaceGeometry != tlwRect)
         windowSurface->setGeometry(tlwRect);
-    }
 
     if (updatesDisabled)
@@ -1213 +1239 @@
     dirtyWidgets.clear();
 
+    fullUpdatePending = false;
+
     if (toClean.isEmpty()) {
         // Nothing to repaint. However, we might have newly exposed areas on the
@@ -1267 +1295 @@
         QWindowSurface *subSurface = w->windowSurface();
         BeginPaintInfo beginPaintInfo;
-        beginPaint(toBePainted, w, subSurface, &beginPaintInfo, false);
+
+        QPoint off = w->mapTo(tlw, QPoint());
+        toBePainted.translate(off);
+        beginPaint(toBePainted, w, subSurface, &beginPaintInfo, true);
+        toBePainted.translate(-off);
+
         if (beginPaintInfo.nothingToPaint)
             continue;