Changeset 110 for trunk/src/kernel/qapplication_pm.cpp

Timestamp:

Jul 30, 2006, 7:11:51 PM (19 years ago)

Author:

dmik

Message:

Widgets: Implemented QDesktopWidget::availableGeometry().

File:

• trunk/src/kernel/qapplication_pm.cpp (modified) (4 diffs)

trunk/src/kernel/qapplication_pm.cpp

@@ -951 +951 @@
 //
 
-// some undocumented messages (they have the WM_U_ prefix for clarity)
-//@@TODO (dmik): are they all available in Warp3?
 enum {
+    // some undocumented messages (they have the WM_U_ prefix for clarity)
+    
     // sent to hwnd that has been entered to by a mouse pointer.
     // FID_CLIENT also receives enter messages of its WC_FRAME.
@@ -962 +962 @@
     // mp1 = hwnd that is left, mp2 = hwnd that is entered
     WM_U_MOUSELEAVE = 0x41F,
+
+    // some undocumented system values
+    
+    SV_WORKAREA_YTOP = 51,            
+    SV_WORKAREA_YBOTTOM = 52,            
+    SV_WORKAREA_XRIGHT = 53,            
+    SV_WORKAREA_XLEFT = 54,
 };
 
@@ -1080 +1087 @@
 #endif
 
-/// @todo (dmik) later
-//    case WM_SETTINGCHANGE:
-//#ifdef Q_OS_TEMP
-//      // CE SIP hide/show
-//      if ( wParam == SPI_SETSIPINFO ) {
-//          QResizeEvent re( QSize(0, 0), QSize(0, 0) ); // Calculated by QDesktopWidget
-//          QApplication::sendEvent( qt_desktopWidget, &re );
-//          break;
-//      }
-//#endif
-//      // ignore spurious XP message when user logs in again after locking
-//      if ( qApp->type() == QApplication::Tty )
-//          break;
-//      if ( QApplication::desktopSettingsAware() && wParam != SPI_SETWORKAREA ) {
-//          widget = (QETWidget*)QWidget::find( hwnd );
-//          if ( widget ) {
-//              widget->markFrameStrutDirty();
-//              if ( !widget->parentWidget() )
-//                  qt_set_windows_resources();
-//          }
-//      }
-//      break;
-//    case WM_SYSCOLORCHANGE:
-//      if ( qApp->type() == QApplication::Tty )
-//          break;
-//      if ( QApplication::desktopSettingsAware() ) {
-//          widget = (QETWidget*)QWidget::find( hwnd );
-//          if ( widget && !widget->parentWidget() )
-//              qt_set_windows_resources();
-//      }
-//      break;
+        case WM_SYSVALUECHANGED: {
+            // This message is sent to all top-level widgets, handle only once
+            QWidgetList *list = QApplication::topLevelWidgets();
+            bool firstWidget = list->first()->winId() == hwnd;
+            delete list;
+            if ( !firstWidget )
+                break;
+            LONG from = (LONG) mp1;
+            LONG to = (LONG) mp2;
+            #define _IS_SV(sv) (from >= (sv) && to <= (sv))
+            if ( _IS_SV( SV_WORKAREA_XLEFT ) || _IS_SV( SV_WORKAREA_XRIGHT ) ||
+                 _IS_SV( SV_WORKAREA_YBOTTOM ) || _IS_SV( SV_WORKAREA_YTOP ) ) {
+                 // send a special invalid resize event to QDesktopWidget
+                 QResizeEvent re( QSize( -1, -1 ), QSize( -1, -1 ) );
+                 QApplication::sendEvent( qt_desktopWidget, &re );
+                 /// @todo (dmik) enumerate all top-level widgets and
+                 //  remaximize those that are maximized
+            } else {
+                 /// @todo (dmik) call qt_set_pm_resources() in the way it is
+                 //  done in WM_SYSCOLORCHANGE for relevant SV_ values.
+            }
+            #undef _IS_SV
+            break;
+        }
+
+        case WM_SYSCOLORCHANGE: {
+            // This message is sent to all top-level widgets, handle only once
+            QWidgetList *list = QApplication::topLevelWidgets();
+            bool firstWidget = list->first()->winId() == hwnd;
+            delete list;
+            if ( !firstWidget )
+                break;
+            if ( qApp->type() == QApplication::Tty )
+                break;
+            if ( QApplication::desktopSettingsAware() ) {
+                widget = (QETWidget*)QWidget::find( hwnd );
+                if ( widget && !widget->parentWidget() )
+                    qt_set_pm_resources();
+            }
+            break;
+        }
 
         case WM_BUTTON1DOWN:
@@ -2012 +2029 @@
         }
     }
+    delete list;
 
     if ( mgl ) {