Changeset 561 for trunk/src/gui/kernel/qdesktopwidget_x11.cpp

Timestamp:

Feb 11, 2010, 11:19:06 PM (15 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.6.1 sources.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/gui/kernel/qdesktopwidget_x11.cpp (modified) (7 diffs)

trunk/src/gui/kernel/qdesktopwidget_x11.cpp

@@ -2 +2 @@
 **
 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
-** Contact: Qt Software Information (qt-info@nokia.com)
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
 **
 ** This file is part of the QtGui module of the Qt Toolkit.
@@ -21 +22 @@
 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
 **
-** In addition, as a special exception, Nokia gives you certain
-** additional rights. These rights are described in the Nokia Qt LGPL
-** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
-** package.
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
 **
 ** GNU General Public License Usage
@@ -34 +34 @@
 ** met: http://www.gnu.org/copyleft/gpl.html.
 **
-** If you are unsure which license is appropriate for your use, please
-** contact the sales department at qt-sales@nokia.com.
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
 ** $QT_END_LICENSE$
 **
@@ -198 +198 @@
     if (screens) {
         // leaks QWidget* pointers on purpose, can't delete them as pointer escapes
-        screens = (QWidget**) realloc(screens, j * sizeof(QWidget*));
+        screens = q_check_ptr((QWidget**) realloc(screens, j * sizeof(QWidget*)));
         if (j > screenCount)
             memset(&screens[screenCount], 0, (j-screenCount) * sizeof(QWidget*));
@@ -286 +286 @@
         return d->workareas[screen];
 
-    if ((d->screenCount == 1 || !isVirtualDesktop())
-        && X11->isSupportedByWM(ATOM(_NET_WORKAREA))) {
+    if (X11->isSupportedByWM(ATOM(_NET_WORKAREA))) {
+        int x11Screen = isVirtualDesktop() ? DefaultScreen(X11->display) : screen;
+
         Atom ret;
         int format, e;
@@ -294 +295 @@
 
         e = XGetWindowProperty(X11->display,
-                                QX11Info::appRootWindow(screen),
-                                ATOM(_NET_WORKAREA), 0, 4, False, XA_CARDINAL,
-                                &ret, &format, &nitems, &after, &data);
-
+                               QX11Info::appRootWindow(x11Screen),
+                               ATOM(_NET_WORKAREA), 0, 4, False, XA_CARDINAL,
+                               &ret, &format, &nitems, &after, &data);
+
+        QRect workArea;
         if (e == Success && ret == XA_CARDINAL &&
             format == 32 && nitems == 4) {
             long *workarea = (long *) data;
-            d->workareas[screen].setRect(workarea[0], workarea[1],
-                                          workarea[2], workarea[3]);
+            workArea = QRect(workarea[0], workarea[1], workarea[2], workarea[3]);
         } else {
-            d->workareas[screen] = screenGeometry(screen);
-        }
+            workArea = screenGeometry(screen);
+        }
+
+        if (isVirtualDesktop()) {
+            // intersect the workarea (which spawns all Xinerama screens) with the rect for the
+            // requested screen
+            workArea &= screenGeometry(screen);
+        }
+
+        d->workareas[screen] = workArea;
+
         if (data)
             XFree(data);
@@ -373 +383 @@
 {
     Q_D(QDesktopWidget);
+    int oldScreenCount = d->screenCount;
+    QVector<QRect> oldRects(oldScreenCount);
+    for (int i = 0; i < oldScreenCount; ++i) {
+        oldRects[i] = d->rects[i];
+    }
+
     d->init();
+
+    for (int i = 0; i < qMin(oldScreenCount, d->screenCount); ++i) {
+        if (oldRects.at(i) != d->rects[i])
+            emit resized(i);
+    }
+
+    if (oldScreenCount != d->screenCount) {
+        emit screenCountChanged(d->screenCount);
+    }
+
     qt_desktopwidget_workarea_dirty = true;
     QWidget::resizeEvent(event);